CN102966817B - The combination accessory of fire hose - Google Patents
The combination accessory of fire hose Download PDFInfo
- Publication number
- CN102966817B CN102966817B CN201210085819.3A CN201210085819A CN102966817B CN 102966817 B CN102966817 B CN 102966817B CN 201210085819 A CN201210085819 A CN 201210085819A CN 102966817 B CN102966817 B CN 102966817B
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- Prior art keywords
- accessory
- mentioned
- undertaking
- pawl
- locking
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
Abstract
The combination accessory of the fire hose of the present invention is in insertion accessory water band connecting portion side end face (23a) of ring-type teat (23), it is provided with the locking locking groove (23c) defining inclined-plane (23b), it is provided with, on accessory pawl (17), the projection (17b) abutted with inclined-plane (23b) accepting, it is prevented from the releasing of the combination accessory caused because of barrier when drawing fire hose, the releasing of the combination accessory caused because of the maloperation of people when water band pressurizes, and there is no to add the trouble of additional component, do not damage conventional excellent operability, fire-fighting operation can be carried out more efficient and safely.
Description
Technical field
The present invention relates to the combination accessory of a kind of fire hose, particularly relate to one and possess and come off
The combination accessory of the fire hose of anti-locking mechanism, this anti-locking mechanism that comes off is for avoiding fire hose
The danger produced because of coming off.
Background technology
When fire brigade carries out fire-fighting operation, need to make fire hose extend to fire point from fire fighting truck,
Reliably conveying extinguishing agent.
Fire hose and the outlet of fire fighting truck, fire hose and nozzle and the fire water of discharging water
Band is each other by combining accessory connection.From fire fighting truck, the water or foam that receive pressurization are passed through them
It is sent to the nozzle that discharges water, then releases described water or foam for fire extinguishing etc..
Plug-in type, screw-type and torsional mode is had in the combination accessory that Japan sells.Plug-in type
Raised path between farm fields open country formula combine accessory due to simple in construction, lightweight, the operability of mounting or dismounting is excellent, so
Used in most of fire brigade.
Figure 12～Figure 14 represents that raised path between farm fields open country formula combines the structure of accessory.
Constitute with insertion accessory 20 by accepting accessory 10 in conjunction with accessory.
Insert accessory 20 to be made up of insertion fitment body 21 and throw-out collar 22.Inserting fitment body
One side of 21 is provided with for the ring-type teat locking with the undertaking accessory pawl 17 accepting accessory 10
23.The opposing party inserting fitment body 21 is provided with the insertion accessory being made up of serrated crosssection
With water band connecting portion 24.Throw-out collar 22 is by for accepting the locking releasing use that accessory pawl 17 is pushed open
Cylindrical portion 22a and constituting with the flange shape operating portion 22b of finger press.Locking releasing cylinder
The external diameter of portion 22a is more somewhat larger than the external diameter of the ring-type teat 23 inserting fitment body 21.
Accept accessory 10 by accept fitment body 11, accept accessory dead ring 13, pawl seat 14,
Accept accessory pawl 17, latch spring 15, rubber strip 16 and O-ring seals 18 to constitute.
Accept accessory dead ring 13, pawl seat 14, accept accessory pawl 17, latch spring 15, rubber
The side accepting fitment body 11 it is arranged in 16 and O-ring seals 18.Join in undertaking
The opposing party of part main body 11 is provided with the undertaking accessory water band being made up of serrated crosssection and connects
Portion 12.
Multiple undertaking accessory pawls 17 are arranged by equal intervals at circumferencial direction, towards accepting accessory 10
Front end (opening of a side) there is inclined-plane.Can be along pawl seat it addition, accept accessory pawl 17
14 are radially sliding.Latch spring 15 applies elastic force towards center position to accepting accessory pawl 17 always.
When being inserted by insertion accessory 20 in undertaking accessory 10, insert the front end of fitment body 21
The inclined-plane accepting accessory pawl 17 is encountered at the edge of (opening of a side), and overcomes latch spring 15
Power make undertaking accessory pawl 17 retreat (moving outward).Thus, fitment body 21 is inserted
Front end proceed to accept fitment body 11 limiting section 19, insert fitment body 21 periphery
Face and the inner peripheral surface accepting fitment body 11 are sealed by O-ring seals 18.Now, insertion is joined
The ring-type teat 23 of part main body 21 crosses the position accepting accessory pawl 17, therefore, accepts accessory
Pawl 17 is exerted a force towards center position by the power of latch spring 15, thus returns to original position,
Complete to combine.
Will the accessory that combine release time, make throw-out collar 22 towards accept accessory 10 direction,
The direction of the ring-type teat 23 i.e. inserting fitment body 21 is moved.By making throw-out collar 22 move,
Locking releasing cylindrical portion 22a encounters the inclined-plane accepting accessory pawl 17, will accept accessory pawl
17 push open, proceed to insert the ring-type teat 23 of accessory 20.Thus will accept accessory pawl
17 with the locking elimination of ring-type teat 23, release and combine.
So, raised path between farm fields open country formula combines accessory and can combine simply and release.On the other hand, raised path between farm fields is wild
Although formula combines accessory has good operability, but not to the bonding state releasing accessory
The mechanism that is fixed of throw-out collar 22, accordingly, there exist because of the hook etc. when impact, water Tape movement
And make throw-out collar 22 move towards the direction released, make undertaking accessory pawl 17 disengage, water band connecting portion
24 probabilities departed from.It practice, in the fire-fighting operation of scene of fire, discharge water nozzle sometimes
Disengage with the combination accessory of water band, or because of when water band extends to combining the impact of accessory, at platform
The throw-out collar 22 combining accessory at rank during the prolongation of water band is hooked in step and makes water band connecting portion 24
Disengage.In such occasion, send water to be interrupted, cause obstacle to fire-fighting operation.And, also
There is the water band that joint portion disengaged to dap under the effect of current and the people of surrounding is brought harm
Danger.
It addition, also produce in the case of the pressure not releasing water band in training, fire-fighting operation
The mistake that accessory releases will be combined.
In a word, if just by water, the fire hose of pressurized with compressed air combination accessory because outside
Reason, the operation mistake of people and accidentally released, the most not only can cause obstacle to fire-fighting operation,
And the most also the people of operator, surrounding can be brought harm.It is therefore prevented that this problem
It it is the problem of fire-fighting.
In recent years, the fire fighting truck carrying compressed air foam fire-extinguishing system (CAFS) constantly increases
Add.CAFS car can switch the radiation of water and foam simply, more can than conventional pump truck
Tackle various fire, it is possible to put out a fire expeditiously.But then, CAFS car by
In using compressed-air foam, so combining the occasion that accessory is relieved accidentally, will injection
There is the compressed-air foam of a lot of energy.Compressed-air foam is compared water and is had around producing
The probability of bigger harm.It is therefore prevented that being accidentally released to of the combination accessory of fire hose
The task of top priority.
Patent document 1 discloses that and prevent from causing because of throw-out collar 22 and barrier hook combining by accidentally
The method of situation about releasing.That is, inserting accessory 20 and accepting the periphery installation tool of accessory 10
There is the lid component of the external diameter bigger than the external diameter of throw-out collar 22, so that throw-out collar 22 can not be simple
Ground and ground, bar contact.
It addition, in patent documentation 2, patent documentation 3, disclose the shifting by limiting throw-out collar 22
Dynamic locking component injects and inserts between the throw-out collar 22 of accessory 20 and the dead ring accepting accessory 10
And prevent from combining the method that accessory is released accidentally.
Citation
Patent documentation
Patent documentation 1: No. 3742003 publications of Japan Patent
Patent documentation 2: Japanese Unexamined Patent Publication 2000-329280 publication
Patent documentation 3: Japanese Unexamined Patent Publication 2004-11860 publication
Summary of the invention
The problem that invention is to be solved
But, according to patent documentation 1, the weight and volume in conjunction with accessory increases, and operability is subject to
To infringement, cost also increases.It addition, the mistake of the combination caused because of mistake can not be prevented
Release.
It addition, according to patent documentation 2, patent documentation 3, although it is prevented from the movement at water band
The disengagement of the middle combination accessory produced because throw-out collar is hooked in barrier, but can not prevent because grasping by mistake
The careless disengagement made and cause.Come it addition, install the locking component firefighting activities to racing against time
Say the most bothersome, the operability of water band is caused damage.It addition, it may also happen that forget to install lock
Determine the mistake of component.
The problem that the invention solves the problems that is to solve above-mentioned problem of the prior art, it is provided that a kind of fire-fighting
Water band is with combining accessory, and this fire hose is with combining when accessory is prevented from because drawing fire hose
Barrier and the releasing of the combination accessory that causes, cause because of the maloperation of people when water band pressurizes
The releasing of combination accessory, and there is no to add the trouble of additional component, do not damage conventional
Excellent operability, it is possible to more efficient and carry out fire-fighting operation safely.
For solving the means of problem
The present invention provides the combination accessory of a kind of fire hose, by inserting accessory and accepting accessory structure
Becoming, above-mentioned insertion accessory, have insertion fitment body and throw-out collar, this insertion fitment body is one
It is provided with ring-type teat in side, the opposing party is provided with insertion accessory water band connecting portion,
It is provided with sliding cylinder portion between above-mentioned ring-type teat and above-mentioned insertion accessory water band connecting portion,
This throw-out collar can slide in above-mentioned sliding cylinder portion；Above-mentioned undertaking accessory, has undertaking accessory
Main body and latch spring, this undertaking fitment body is provided with undertaking accessory pawl on a side, at another
Undertaking accessory water band connecting portion it is provided with in side；This latch spring is towards above-mentioned undertaking fitment body
Above-mentioned undertaking accessory pawl is exerted a force by the direction of central axis；A side from above-mentioned undertaking fitment body
Inserting above-mentioned ring-type teat, until crossing the position of above-mentioned undertaking accessory pawl, thus combining
Above-mentioned insertion accessory and above-mentioned undertaking accessory, make above-mentioned throw-out collar along the slip of above-mentioned sliding cylinder portion
Insert in above-mentioned undertaking accessory, abut with the locking releasing inclined-plane of above-mentioned undertaking accessory pawl, by
Above-mentioned throw-out collar pushes above-mentioned locking releasing inclined-plane, thus is pushed away outward by above-mentioned undertaking accessory pawl
Open, release the locking of above-mentioned undertaking accessory pawl and above-mentioned ring-type teat, thus release above-mentioned insertion
Accessory and the combination of above-mentioned undertaking accessory, it is characterised in that: above-mentioned at above-mentioned ring-type teat inserts
Enter on accessory water band connecting portion side end face, be provided with the locking locking groove defining inclined-plane,
It is provided with, on above-mentioned undertaking accessory pawl, the projection abutted with inclined-plane.
The effect of invention
As indicated above, according to the combination accessory of the fire hose of the present invention, it is possible to
While maintaining the excellent operability of conventional combination accessory, prevent because of mistake when water band pressurizes
Operation and the disengagement of combination accessory that causes and the combination caused because of the barrier in water Tape movement
The disengagement of accessory.Thereby, it is possible to avoid the water band caused because combining the careless disengagement of accessory
Dap etc. dangerous, it is possible to implement firefighting activities safer, rapid.
Accompanying drawing explanation
Fig. 1 is the shape that the combination accessory of the fire hose making one embodiment of the present of invention has disengaged
The half sectional view of state.
Fig. 2 is to make this combine the half sectional view of the state that accessory combines.
Fig. 3 be this combine accessory want portion's sectional view.
Fig. 4 is to combine the half sectional view of throw-out collar of accessory for this.
Fig. 5 is to represent that what this combined the operating state of accessory wants portion's sectional view.
Fig. 6 is that the insertion of the combination accessory of the fire hose for another embodiment of the present invention is joined
The half sectional view of part.
Fig. 7 is the curve chart of the pressure representing this fire hose and the relation of axial pulling force.
Fig. 8 is the locking locking of the combination accessory about the present embodiment and the power relation released
Ideograph.
Fig. 9 is to represent relative to conventional combination accessory and the releasing of the combination accessory of the present embodiment
The curve chart of the measured value of power.
Figure 10 is the measured value that the maximum representing and being released the card timing combining accessory by people refers to power
Figure.
Figure 11 is the shape of the releasing of the combination accessory representing conventional combination accessory and the present embodiment
The figure of condition.
Figure 12 is the half sectional view of the state making the combination accessory of conventional fire hose disengage.
Figure 13 is to make this combine the half sectional view of the state that accessory combines.
Figure 14 be this combine accessory accept accessory pawl enlarged drawing.
The explanation of symbol
10 accept accessory
11 accept fitment body
12 accept accessory use water band connecting portion
15 latch springs
17 accept accessory pawl
17a locking releasing inclined-plane
17b projection
20 insert accessory
21 insert fitment body
22 throw-out collars
23 ring-type teats
23a inserts accessory use water band connecting portion side end face
23b inclined-plane
23c locking locking groove
24 insert accessory use water band connecting portion
25 sliding cylinder portions
25a main body side anti-slip tank
25b keyway
Detailed description of the invention
The combination accessory of the fire hose of the 1st embodiment of the present invention, by inserting accessory 20
Constituting with accepting accessory 10, above-mentioned insertion accessory 20 has insertion fitment body 21 and throw-out collar
22；This insertion fitment body 21 is provided with ring-type teat 23 on a side, sets on the opposing party
It is equipped with insertion accessory water band connecting portion 24, at above-mentioned ring-type teat 23 and above-mentioned insertion accessory
Being provided with sliding cylinder portion 25 between water band connecting portion 24, this throw-out collar 22 can be in above-mentioned cunning
Slide in dynamic cylindrical portion 25；Above-mentioned undertaking accessory 10 has undertaking fitment body 11 and latch spring
15；This undertaking fitment body 11 is provided with undertaking accessory pawl 17 on a side, on the opposing party
Being provided with undertaking accessory water band connecting portion 12, this latch spring 15 is towards above-mentioned undertaking fitment body
Above-mentioned undertaking accessory pawl 17 is exerted a force by the direction of the central axis X 1 of 11；From above-mentioned undertaking accessory
One side of main body 11 inserts above-mentioned ring-type teat 23, until crossing above-mentioned undertaking accessory pawl 17
Till position, thus combine above-mentioned insertion accessory 20 and above-mentioned undertaking accessory 10, make above-mentioned pushing away
Ring 22 slides along above-mentioned sliding cylinder portion 25 and inserts in above-mentioned undertaking accessory 10, holds with above-mentioned
The locking releasing inclined-plane 17a connecing accessory pawl 17 abuts, above-mentioned throw-out collar 22 push above-mentioned card
Determine releasing inclined-plane 17a, thus above-mentioned undertaking accessory pawl 17 is pushed open outward, release above-mentioned
Undertaking accessory pawl 17 is locking with above-mentioned ring-type teat 23, thus releases above-mentioned insertion accessory 20
With the combination of above-mentioned undertaking accessory 10, the combination at the fire hose constituted in such a way is joined
In part, the insertion accessory water band connecting portion side end face 23a of ring-type teat 23 is provided with formation
The locking locking groove 23c of inclined-plane 23b, is provided with and inclined-plane 23b on accessory pawl 17 accepting
Projection 17b abutted.According to present embodiment, if water band is pressurized, then insert accessory 20 He
Accept accessory 10 to move towards the direction disengaged, locking locking groove 23c the inclined-plane 23b formed
It is mutually twisted with the inclined-plane formed by projection 17b being formed on undertaking accessory pawl 17.As a result,
Bonding state is locked, therefore, it is possible to prevent in the use of water band because of maloperation, outside
Hook etc. and the careless disengagement that causes.On the other hand, when being in the most pressurized not the making of water band
Used time, bonding state is not locked, and therefore, easily carries out disengaging operation.
2nd embodiment of the present invention in the combination accessory of the fire hose of the 1st embodiment,
The outer peripheral face in sliding cylinder portion 25 is provided with main body side anti-slip tank 25a.According to this embodiment party
Formula, it is possible to prevent the disengagement caused in the use of water band because of outside hook.
3rd embodiment of the present invention in the combination accessory of the fire hose of the 2nd embodiment,
Throw-out collar side anti-slip tank 22c it is provided with in the end of the inner peripheral surface of throw-out collar 22.According to present embodiment,
The disengagement caused because of outside hook can be more reliably prevented from the use of water band.
4th embodiment of the present invention is in the combination of the fire hose of the 1st～the 3rd embodiment
In accessory, projection 17b is formed as triangle, trapezoidal or semicircular cross sectional shape.According to
Present embodiment, it is possible to be more reliably prevented from the use of water band causing because of outside hook
Disengagement.
5th embodiment of the present invention is in the combination of the fire hose of the 1st～the 4th embodiment
In accessory, when by the inclined-plane 23b of locking locking groove 23c relative to insert accessory 20 center
When the angle of axis X 2 is set to α, make 0 ° of ＜ α ＜ 90 °.According to present embodiment, it is possible to root
According to the size of the angle [alpha] of the inclined-plane 23b of locking locking groove 23c, the intensity of locking is adjusted
Whole.
6th embodiment of the present invention in the combination accessory of the fire hose of the 5th embodiment,
When setting the locking releasing inclined-plane 17a angle relative to the central axis X 2 inserting fitment body 21
When degree is for β, make β ＜ α.According to present embodiment, it is possible to the releasing behaviour being easily combined
Make.
7th embodiment of the present invention in the combination accessory of the fire hose of the 3rd embodiment,
Main body side anti-slip tank 25a or throw-out collar side anti-slip tank 22c is formed as triangle, trapezoidal or wavy
Cross sectional shape.According to present embodiment, it is possible to be more reliably prevented from leading because of outside hook
The disengagement caused.
8th embodiment of the present invention is in the combination of the fire hose of the 2nd～the 7th embodiment
In accessory, it is formed with the keyway 25b traversing main body side anti-slip tank 25a, by above-mentioned keyway 25b
The mode of the two ends width that exceedes aforementioned body side anti-slip tank 25a set up.According to this embodiment party
Formula, in sand, the occasion of dust removing of main body side anti-slip tank 25a be will attach to, is inciting somebody to action
Brush, cloth etc. is made circumferentially to move under the state that brush, cloth etc. are pressed against groove.So, by sand,
Dust is scavenged into keyway 25b from main body side anti-slip tank 25a, it is possible to easily by sand, powder
Dirt removes.
Embodiment
Below, the combination accessory of the fire hose of one embodiment of the present of invention is described with reference to the accompanying drawings.
Fig. 1 be the combination accessory of the fire hose making the present embodiment disengaged state (but not
Diagram throw-out collar) half sectional view, Fig. 2 be the fire hose making this embodiment combination accessory knot
The half sectional view of the state closed, Fig. 3 is wanting of the combination accessory of the fire hose of this embodiment
Portion's sectional view, Fig. 4 is partly cuing open of the throw-out collar of the combination accessory of the fire hose for this embodiment
View, Fig. 5 be represent this embodiment fire hose combination accessory operating state want portion
Sectional view.And, the component with past case identical function is marked same symbol, and omits one
Part explanation.
The combination accessory of the fire hose of the present embodiment is by inserting accessory 20 and accepting accessory 10 structure
Become.
Insert fitment body 21 on a side, be provided with ring-type teat 23, the opposing party is arranged
There is insertion accessory water band connecting portion 24.Insert fitment body 21 in ring-type teat 23 and insertion
It is provided with sliding cylinder portion 25 between accessory water band connecting portion 24.
Throw-out collar 22 shown in Fig. 4 can slide in the sliding cylinder portion 25 shown in Fig. 1.
Accept fitment body 11 on a side, be provided with undertaking accessory pawl 17, the opposing party sets
It is equipped with undertaking accessory water band connecting portion 12.This latch spring 15 is towards accepting in fitment body 11
Above-mentioned undertaking accessory pawl 17 is exerted a force by the direction of mandrel line X1.
As in figure 2 it is shown, for inserting accessory 20 and accepting accessory 10, from accepting fitment body
One side's opening of 11 inserts ring-type teat 23, until crossing the position accepting accessory pawl 17.
That is, the ring-type teat 23 being in the front end inserting fitment body 21 encounters undertaking accessory pawl 17
Locking releasing inclined-plane 17a, overcome the power of latch spring 15, make undertaking accessory pawl 17 retreat.
Thus, the front end of ring-type teat 23 advances to accept the limiting section 19 of fitment body 11, by O
Shape sealing ring 18 seals.Now, the ring-type teat 23 of insertion fitment body 21 is crossed and is held
Connect accessory pawl 17, therefore, accept accessory pawl 17 at the effect Xia Chao center of the power of latch spring 15
Advancing in the direction of axis X 1, returns to original position.Thus, fitment body 21 is inserted
Ring-type teat 23 is locking with undertaking accessory pawl 17, completes to combine.
To release the occasion inserting accessory 20 with the combination accepting accessory 10, make throw-out collar 22
Along sliding cylinder portion 25 slide and insert undertaking accessory 10 in, and with accept accessory pawl 17 card
Determine releasing inclined-plane 17a to abut, throw-out collar 22 push locking releasing inclined-plane 17a, thus will
Accepting accessory pawl 17 to push open outward, releasing undertaking accessory pawl 17 is locking with ring-type teat 23.
The combination accessory of the fire hose of the present embodiment is at the insertion accessory water of ring-type teat 23
With being provided with the locking locking groove 23c defining inclined-plane 23b on the 23a of connecting portion side end face,
It is provided with, on accessory pawl 17, projection 17b abutted with inclined-plane 23b accepting.
The inclined-plane 23b of locking locking groove 23c is relative to the central axis X 2 inserting accessory 20
Angle [alpha] be in the scope of 0 ° of ＜ α ＜ 90 °, the present embodiment is set to 45 °.It addition, it is oblique with this
The inclined-plane of projection 17b that face 23b abuts also is set to and the inclined-plane 23b of locking locking groove 23c
The identical angle of angle [alpha].
When locking releasing inclined-plane 17a is relative to the central axis X 2 inserting fitment body 21
When angle is β, if β is ＜ α.
Accept accessory pawl 17 for 3 to arrange by equal intervals in the circumference accepting accessory 10.Accept
Accessory pawl 17 has locking releasing inclined-plane 17a towards the entrance accepting accessory 10, it addition,
Can radially slide along pawl seat 14.Latch spring 15 to accept accessory pawl 17 apply always towards in
The power that the direction of mandrel line X2 is moved.
If water band is pressurized, then inserts accessory 20 and undertaking accessory 10 moves towards the direction disengaged.
Then, locking locking groove 23c the inclined-plane 23b defined with by being formed on undertaking accessory
The inclined-plane that projection 17b on pawl 17 is formed is mutually twisted, and bonding state is locked.
When water band is not applied to pressure, as in the past, with finger towards accepting accessory
The direction of 10, i.e. insert convex to throw-out collar 22 of the direction of ring-type teat 23 of fitment body 21
Edge shape operating portion 22b pushes.So, locking releasing cylindrical portion 22a of throw-out collar 22
Encounter by being formed on the inclined-plane that projection 17b accepted on accessory pawl 17 is formed, will hold
Connect accessory pawl 17 to push open, proceed to insert the ring-type teat 23 of accessory 20.Thus eliminate
Accept the hook of accessory pawl 17 and ring-type teat 23, make the accessory combined disengage.
As the disengagement countermeasure of combination accessory during water band non-pressurised, in the locking solution of throw-out collar 22
Except the two ends with the inner peripheral surface of cylindrical portion 22a, it is machined with the throw-out collar side formed by fine groove and prevents
Chute 22c.On the outer peripheral face in sliding cylinder portion 25 inserting fitment body 21, machined
The main body side anti-slip tank 25a formed by fine groove.
If as it is shown in figure 5, the flange shape operating portion 22b hook barrier of throw-out collar 22, throw-out collar
22 states being in a side side stress, a side of the front end of the most locking releasing cylindrical portion 22a floats
Rising, the opposing party nips and inserts the periphery of fitment body 21.It addition, locking releasing cylindrical portion
Also there is same phenomenon in the rear portion of 22a.Therefore, if forming throw-out collar side anti-slip tank 22c, main body
Side anti-slip tank 25a, the inner circumferential of the most locking releasing cylindrical portion 22a and insertion fitment body 21 energy
Enough the most locking.The power of the barrier being applied in a side produces anti-skidding effect.Thus, energy
Enough prevent the careless disengagement of the combination accessory caused because of barrier.
Fig. 6 represents the combination accessory of the fire hose of another embodiment of the present invention.
Fig. 6 is the half section inserting accessory of the combination accessory of the fire hose for the present embodiment
Figure, represents the state having pulled down throw-out collar.Throw-out collar 22 and accept accessory 10 and above-described embodiment phase
With, therefore, omit the description.It addition, mark for the component with conventional example identical function
Same-sign, and omit part explanation.
In the present embodiment, it is formed with the keyway 25b traversing a plurality of main body side anti-slip tank 25a,
Set up in the way of the two ends of keyway 25b exceed the width of main body side anti-slip tank 25a.
In sand, the occasion of dust removing of main body side anti-slip tank 25a be will attach to, inciting somebody to action
Brush, cloth etc. is made circumferentially to move under the state that brush, cloth etc. press against groove.So, by sand,
Dust is scavenged into keyway 25b from main body side anti-slip tank 25a, it is possible to easily by sand, powder
Dirt removes.
Fig. 7 represents water band pressure (discharge water pressure) and the pulling force being axially applied with at water band
Relation.This pulling force makes to combine the direction effect of accessory disengagement.The pressure that discharges water is generally 0.3Mpa
Above.The pulling force of the water band of nominal 65mm corresponding with this pressure and 50mm is respectively 720N
With more than 1100N.The inclined-plane 23b formed by locking locking groove 23c with by being formed on
The inclined-plane accepting the formation of projection 17b on accessory pawl 17 is mutually twisted such that it is able to utilize this water
Band pressurization time pulling force by accessory each other bonding state locking.
Fig. 8 represents the ideograph of the power relation about the locking locking and releasing combining accessory.
F1 is the pulling force produced by the pressurization of water band.F2 is the power produced by the component of F1.This power makes
Pawl moves towards the direction of central shaft X2, i.e. this power plays a role not release locking.F4 is
The power being subject to from throw-out collar 22.It addition, F3 is the component of F4, it plays a role to release locking.
Balance is kept when F3 with F2 is equal.If setting the α inclined-plane 23b phase as locking locking groove 23c
For inserting the angle of central axis X 2 of accessory 20, then the angle [alpha] of inclined-plane 23b can be by
It is processed into 0 °～90 ° arbitrarily angled.If it addition, setting β as locking releasing inclined-plane 17a phase
For inserting the angle of the central axis X 2 of fitment body 21, the most locking releasing inclined-plane 17a
Angle beta be certain.Here, pawl is moving radially the distance of L2 by the power of F2, with
This accompanies, and overcomes the power of F1, ring-type teat 23 to move axially the distance of L1.Now,
As amount of work, become F1 × L1=F2 × L2.Further, since L1/L2=tan (90-α),
Therefore, each power is as follows with the relation of angle.
F2/F1=tan (90-α) ... formula (1)
F4/F3=tan β ... formula (2)
Equally, F3=F2 tan β=a (constant), therefore,
F4=aF1tan (90-α) ... formula (3)
As formula (3), by changing the angle [alpha] of inclined-plane 23b, make under certain pressure F1
The size variation of releasing power.The groove that conventional combination accessory does not lock, therefore α is 90 °.
Therefore, tan (90-α)=0, F4=0.That is, according to conventional structure, even if being applied with pressure
Under the state of power, if there is the frictional resistance for the power with locking overcoming latch spring 15
Power, then can release combination.
On the other hand, if α is 0 °, then tan (90-α) becomes infinitely great, and in water band
Pressing unrelated, locking power F4 required for releasing becomes infinitely great.So, if suitably setting
Determining the angle [alpha] of inclined-plane 23b, the most corresponding releasing power determines.If under minimum radiation pressure
The releasing power (comprising latch spring power and frictional force) of combination accessory be set the finger than people
Power bigger, even if then there is maloperation, it is also possible to avoid combining accessory and be accidentally released from.Separately
Outward, when water band moves when pressurized, even if being hooked in barrier, accessory
In conjunction with also disengaging simply.
It addition, only by above-mentioned countermeasure, when water band is the most pressurized, it is impossible to utilize water band
Pressure lock combining accessory, it is thus impossible to prevent from leading because of barrier in movement
Cause combines accessory and disengages.Therefore, at the inner peripheral surface of locking releasing cylindrical portion 22a of throw-out collar 22
Two ends, the throw-out collar side anti-slip tank 22c that formed by fine groove of processing.Inserting fitment body
The main body side anti-slip tank formed by fine groove is formed on the outer peripheral face in the sliding cylinder portion 25 of 21
25a。
People to combining the occasion that accessory releases, bimanual finger promotes throw-out collar equably
The flange shape operating portion 22b of 22.On the other hand, at the flange shape operating portion 22b of throw-out collar 22
It is hooked in the occasion of barrier, a side side stress of flange shape operating portion 22b.Due at throw-out collar
Deposit between inner circumferential and the periphery inserting fitment body 21 of locking releasing cylindrical portion 22a of 22
In the least gap, therefore, if becoming the stress of a side, the most as shown in Figure 5,
One side of the front end of locking releasing cylindrical portion 22a floats, and the opposing party nips insertion fitment body
The periphery of 21.It addition, also there is same phenomenon in the rear portion of locking releasing cylindrical portion 22a.
Therefore, by forming main body side anti-slip tank 25a, it is possible to make locking releasing cylindrical portion 22a
End face is locking, but forms throw-out collar by the two ends of the inner peripheral surface in locking releasing cylindrical portion 22a
Side anti-slip tank 22c, it is possible to carry out mutual locking more reliably, put on the barrier of a side
Power produce anti-skidding effect.Therefore, it is possible to prevent the combination accessory that causes because of barrier not
Careful disengagement.
Fig. 9 represents relative to conventional combination accessory and the releasing power of the combination accessory of the present embodiment
Measured value.
In order to confirm the serviceability of the present invention, trial-production has the locking locking groove 23c's of 45 °
The combination accessory of the angle [alpha] of inclined-plane 23b, makes the change of water band pressure measure releasing power.It addition,
In order to compare, also measure the releasing power of conventional combination accessory.Here, releasing power refers to
Insert accessory 20 and accept under the state that accessory 10 combines, in order to release the card combining accessory
Determine and be applied to the maximum of the power on the flange shape operating portion 22b of throw-out collar 22.Depicted herein
The measured value of necessary releasing power is the power of latch spring 15, frictional force and by the occlusion on inclined-plane
The aggregate value of the latching force produced.
As it is shown in figure 9, water band is not being executed under stressed state, conventional product and this reality
The releasing power executing example is equal.On the other hand, under the pressurized state of water band, along with this pressure increases
Greatly, the power required for the combination releasing of accessory increases.At common minimum use pressure
Under 0.3MPa, the releasing power of the present embodiment is about 6 times of conventional product.
Represent that the maximum being released the card timing combining accessory by people refers to the measured value of power in Fig. 10.
Different from the structure accepting accessory 10 owing to inserting accessory 20, therefore, according to releasing knot
Operator during conjunction accessory and the relative position combining accessory, i.e. be to stand in insertion accessory 20
Side still stands in undertaking accessory 10 side, and the holding easiness of finger changes, and accompanies with this,
The way of output of power also changes.Mensuration is to carry out two positions relative to identical testee
Measure.It addition, as measuring object, be divided into common people and fireman and each group be measured.
Learn from this result, combine the minima of finger power of common people of accessory, maximum for releasing
And meansigma methods is respectively 140N, 550N and 308N.It addition, the finger power of fire fighter
Minima, maximum and meansigma methods are respectively 149N, 680N and 398N.
According to this result, using the occasion of conventional combination accessory, according to the difference of people,
It is also possible to release the combination combining accessory under the water band pressure of 0.7MPa.On the other hand, make
Occasion with the combination accessory of the present invention, it is possible to released the limit pressure combining accessory by the finger power of people
Power is about 0.11MPa.Common minimum use pressure during fire-fighting operation is 0.3MPa, therefore,
If utilizing the present embodiment, then it is prevented from the disengagement of the combination accessory caused because of maloperation.
Figure 11 is whether the combination accessory to conventional combination accessory and the present embodiment can be because of throw-out collar
It is hooked in step and causes the combination of accessory to be released from carrying out the result of inquiry agency acquisition.It addition,
When water band is the most pressurized, the state of accessory when throw-out collar 22 is hooked in step is also entered
Go investigation.Experiment uses new combination accessory to carry out respectively 10 times.Under same pulling force,
The probability that conventional combination accessory is released from combining is 100%, and the releasing probability of the present embodiment
It is 0%.It is known that in the present embodiment, when by barrier hooks such as steps, energy
Enough prevent careless disengagement.
Therefore, the serviceability of the present invention is confirmed.
Claims (7)
1. a combination accessory for fire hose, is constituted with accepting accessory by inserting accessory,
Above-mentioned insertion accessory,
There is insertion fitment body and throw-out collar,
This insertion fitment body is provided with ring-type teat on a side, is provided with slotting on the opposing party
Enter accessory water band connecting portion, at above-mentioned ring-type teat and above-mentioned insertion accessory water band connecting portion
Between be provided with sliding cylinder portion,
This throw-out collar can slide in above-mentioned sliding cylinder portion；
Above-mentioned undertaking accessory,
There is undertaking fitment body and latch spring,
This undertaking fitment body is provided with undertaking accessory pawl on a side, is provided with on the opposing party
Accept accessory use water band connecting portion；
This latch spring towards the direction of the central axis of above-mentioned undertaking fitment body to above-mentioned undertaking accessory
Pawl exerts a force；
Above-mentioned ring-type teat is inserted, until crossing above-mentioned holding from a side of above-mentioned undertaking fitment body
Till connecing the position of accessory pawl, thus combine above-mentioned insertion accessory and above-mentioned undertaking accessory,
Above-mentioned throw-out collar is made to slide along above-mentioned sliding cylinder portion and insert in above-mentioned undertaking accessory, with upper
State the locking releasing inclined-plane abutting accepting accessory pawl, above-mentioned throw-out collar push above-mentioned locking releasing
With inclined-plane, thus above-mentioned undertaking accessory pawl is pushed open outward, release above-mentioned undertaking accessory pawl with
Above-mentioned ring-type teat locking, thus releases the combination of above-mentioned insertion accessory and above-mentioned undertaking accessory,
It is characterized in that:
On the above-mentioned insertion accessory water band connecting portion side end face of above-mentioned ring-type teat, it is provided with shape
Become the locking locking groove on inclined-plane,
Above-mentioned undertaking accessory pawl has locking releasing inclined-plane towards the entrance of above-mentioned undertaking accessory；
Above-mentioned undertaking accessory pawl is provided with the projection abutted with above-mentioned inclined-plane；
The above-mentioned inclined-plane of above-mentioned locking locking groove is relative to the central axis of above-mentioned insertion accessory
Angle [alpha], than above-mentioned locking releasing inclined-plane relative to the central axis of above-mentioned insertion fitment body
Angle beta big.
The combination accessory of fire hose the most according to claim 1, it is characterised in that:
It is provided with main body side anti-slip tank on the outer peripheral face in above-mentioned sliding cylinder portion.
The combination accessory of fire hose the most according to claim 2, it is characterised in that:
The end of the inner peripheral surface of above-mentioned throw-out collar is provided with throw-out collar side anti-slip tank.
The combination accessory of fire hose the most according to claim 1, it is characterised in that: will
Above-mentioned projection is formed as triangle, trapezoidal or semicircular cross sectional shape.
The combination accessory of fire hose the most according to claim 1, it is characterised in that: make
The angle [alpha] on the above-mentioned inclined-plane of above-mentioned locking locking groove is 0 ° of ＜ α ＜ 90 °.
The combination accessory of fire hose the most according to claim 3, it is characterised in that: will
Aforementioned body side anti-slip tank or above-mentioned throw-out collar side anti-slip tank are formed as triangle, trapezoidal or wavy
Cross sectional shape.
7. join according to the combination of the fire hose described in any one in claim 2,3,6
Part, it is characterised in that: form the keyway traversing aforementioned body side anti-slip tank, with above-mentioned keyway
The mode of the width that two ends exceed aforementioned body side anti-slip tank is set up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610730569.2A CN106195489B (en) | 2011-08-30 | 2012-03-23 | The combination accessory of fire hose |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-187580 | 2011-08-30 | ||
| JP2011187580A JP5864164B2 (en) | 2011-08-30 | 2011-08-30 | Fire hose coupling fittings |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610730569.2A Division CN106195489B (en) | 2011-08-30 | 2012-03-23 | The combination accessory of fire hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102966817A CN102966817A (en) | 2013-03-13 |
| CN102966817B true CN102966817B (en) | 2016-09-28 |
Family
ID=47797151
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610730569.2A Active CN106195489B (en) | 2011-08-30 | 2012-03-23 | The combination accessory of fire hose |
| CN201210085819.3A Active CN102966817B (en) | 2011-08-30 | 2012-03-23 | The combination accessory of fire hose |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610730569.2A Active CN106195489B (en) | 2011-08-30 | 2012-03-23 | The combination accessory of fire hose |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5864164B2 (en) |
| KR (1) | KR101678713B1 (en) |
| CN (2) | CN106195489B (en) |
| HK (1) | HK1182435A1 (en) |
| TW (1) | TWI554308B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6384917B2 (en) * | 2014-10-08 | 2018-09-05 | 学校法人立命館 | Fire extinguishing nozzle |
| JP2016083191A (en) * | 2014-10-27 | 2016-05-19 | 学校法人立命館 | Community fire hydrant added with auxiliary fire extinction function |
| JP5977403B2 (en) * | 2015-07-29 | 2016-08-24 | 株式会社モリタホールディングス | Fire hose coupling fittings |
| CN105156800A (en) * | 2015-08-06 | 2015-12-16 | 刘磊 | Fast inserting type disengaging-preventing and binding-free hose coupling |
| CN109253336B (en) * | 2016-12-31 | 2020-03-31 | 王驰 | Quick joint for metal pipe |
| CN106939951A (en) * | 2017-04-11 | 2017-07-11 | 公安部四川消防研究所 | A kind of connector fixing device and fastening method |
| CN107387903A (en) * | 2017-08-22 | 2017-11-24 | 周荣建 | A kind of fire extinguisher canvas hose joint |
| CN108273219A (en) * | 2017-12-13 | 2018-07-13 | 泉州旭瑞商务有限公司 | A kind of elastic fire hose |
| JP2020143724A (en) * | 2019-03-06 | 2020-09-10 | 株式会社山田製作所 | Metal insert fitting of insertion type connection joint, and insertion type connection joint |
| CN113661717A (en) * | 2019-04-04 | 2021-11-16 | 五十平方株式会社 | Earphone sleeve and fixing piece thereof |
| JP7376099B2 (en) * | 2020-06-04 | 2023-11-08 | 株式会社山田製作所 | Plug-in joint fittings and plug-in joints |
| CN111494857B (en) * | 2020-06-04 | 2021-05-04 | 王素贞 | Fire-fighting equipment collecting box |
| CN116734066B (en) * | 2023-08-15 | 2023-12-19 | 南通海王消防水带有限公司 | Fire control connects |
| CN117146084B (en) * | 2023-10-30 | 2024-02-20 | 泉州市山河消防技术有限公司 | Reducing type water hose connector |
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| CN201416716Y (en) * | 2009-06-23 | 2010-03-03 | 芜湖华夏消防装备有限责任公司 | Novel fire coupling |
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- 2012-03-07 KR KR1020120023499A patent/KR101678713B1/en active IP Right Grant
- 2012-03-14 TW TW101108651A patent/TWI554308B/en active
- 2012-03-23 CN CN201610730569.2A patent/CN106195489B/en active Active
- 2012-03-23 CN CN201210085819.3A patent/CN102966817B/en active Active
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| CN201416716Y (en) * | 2009-06-23 | 2010-03-03 | 芜湖华夏消防装备有限责任公司 | Novel fire coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI554308B (en) | 2016-10-21 |
| HK1182435A1 (en) | 2013-11-29 |
| CN106195489A (en) | 2016-12-07 |
| KR20130024714A (en) | 2013-03-08 |
| JP5864164B2 (en) | 2016-02-17 |
| JP2013050143A (en) | 2013-03-14 |
| CN102966817A (en) | 2013-03-13 |
| KR101678713B1 (en) | 2016-11-22 |
| TW201309361A (en) | 2013-03-01 |
| CN106195489B (en) | 2019-03-26 |
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