CN101994439A

CN101994439A - Lock device for controlling fluid

Info

Publication number: CN101994439A
Application number: CN 201010521723
Authority: CN
Inventors: 吴光荣; 柴世军; 李昆仑
Original assignee: CETC 52 Research Institute
Current assignee: CETC 52 Research Institute
Priority date: 2010-10-27
Filing date: 2010-10-27
Publication date: 2011-03-30
Anticipated expiration: 2030-10-27
Also published as: CN101994439B

Abstract

The invention belongs to the field of mechanical locks and particularly relates to a lock device for controlling fluid. A piston is arranged between a lock body and a lock core, wherein the lock device is fixed on an inlet and outlet passage of a fluid container, a lock body through hole matched with an inlet and outlet of the fluid container is arranged on the lock body, a lock core through hole communicated with the lock body through hole is arranged on the lock core, the piston is movably connected on the bottom part of the lock core, and the piston has a displacement space in a certain range relative to the lock core and can be pulled by the lock core to do displacement movement. The invention has the advantages that the lock device is applicable to the fluid locking, can realize the locking effect in one flowing direction, is more disguised and is safe, reliable, convenient and practical.

Description

A kind of locking device that is used to control fluid

Technical field

The invention belongs to the mechanical lock field, particularly a kind of locking device that is used to control fluid fillers or discharging.

Background technology

At present, general mechanical lock is to be reached control by the purpose of lock object by direct restriction by the displacement movement of lock solid, stops gas or liquid to flow in the container access and can not directly limit.The general effective ways of control for fluid are to stop flowing of gas or liquid by Locked valve; Locked valve method essential characteristic is; lock is relatively independent with valve mechanism itself, and valve itself is again an air locking, and lock construction will be external; lock construction is external just to subject to the people for sabotaging; as: civilian petroleum oil liquid gas storage tank in applicable cases such as different operating object and scene circulations, is ordered about by illegal economic interests through regular meeting; have and occupy new gas tank, adulteration incident takes place.In addition, as application such as civilian petroleum oil liquid gas storage tanks, lock construction is external, the terminal use is used cause inconvenience.

Summary of the invention

The present invention is for overcoming the deficiencies in the prior art part, purpose is to provide a kind of locking device that is used to control fluid, this locking device is fixed on the fluid container exit and entrance, lock is integrated with valve, make and have only the lock opening just can fill, but can both freely discharge in lock unlatching or closed condition, solve problems of the prior art.

The present invention achieves the above object by the following technical programs: a kind of inside locking device in a tubular form that is used to control fluid, comprise lock body, lock core, piston, wherein: lock body is fixed on the exit and entrance of fluid container, lock body is provided with the lock body through hole that the access with fluid container is complementary, lock core is provided with the lock core through hole that is communicated with the lock body through hole, piston is placed on the piston holder, the relative piston holder of piston can produce the certain limit displacement movement, pulls motion but done by piston holder; Piston holder is fixed in the lock core bottom, and then the relative lock core of piston also can produce the certain limit displacement movement, pulls motion but done by lock core; Piston holder and lock core can be integrated again.When filling fluid, need with supporting private key or filing gun head, the filing gun head plays the key effect, and rifle head and lockhole shaping-orientation groove are convenient to plug in rifle head (key) to bit manipulation.Rifle head surface design concave face, as key " teeth ", all " teeth " match with lock core, and teeth compress pellet shot from a slingshot, the contact gap that makes two pellets shot from a slingshot between lock core and the lock body is over against lock core and gap, lock body border, form free cheek, can manually rotate, or between lock body and lock core, settle spring, eject the inside lock core, lock core affects the piston rotation or lifts, and exposes the lock body through hole, can normally fill fluid.If filing gun head and special mechanical lock are unpaired, two pellets shot from a slingshot can block between lock core and the lock body, the relative motion or the displacement of restriction lock body and inner lock core, and piston is subjected to the exterior fluid pressure effect to block the lock body through hole, can not fluid container normally fill.Piston can be done spacing relative motion or activity with lock core, when the container inner fluid outwards discharges, because the container fluid pressure is greater than the container external pressure, the stressed jack-up of piston, the relative lock core of piston, piston holder and lock body produce displacement movement, and the lock body through hole is opened, and can normally discharge.Discharging need not key operated, and piston is opened automatically, exposes through hole.The above pellet shot from a slingshot is that a kind of pin mainly works to hinder lock body and lock core relative motion; Have only the pellet shot from a slingshot of working as on ad-hoc location, lock body and lock core just may produce relative motion; The in fact also available blade of billiards lock structure or other pattern substitute.

Piston can be designed to wafer-type, and the centre has the groove at the end, is contained on the lock core, and piston can be to the relative motion up and down of lock core certain interval.Open the hole on the piston.When the situation of unblanking, lock core rotation drives piston, makes that through hole and lock body through hole are to last on the piston, and the formation passage can be used for fluid fillers or discharging.When the situation of locking, lock core rotation drives piston and makes that through hole and lock body through hole be not to going up on the piston, and when fluid fillers, piston presses to lock body, blocks up the upper lock body through hole, can not fill; When fluid discharges, though on the piston through hole and lock body through hole to not going up, the extruding of receptor internal fluid pressure, piston and lock core have relative motion, on the lock body through hole was not blocked, the formation fluid passage can be used for the container inner fluid and normally discharge.Reliably block filling channel in order to lock, piston can be designed to bowl-shape or spherical, hemispherical, and the mate of lock body through hole is also done corresponding transformation.

The invention has the beneficial effects as follows: the application of locking of suitable convection cell, can lock at a flow direction; Locking device is more hidden, safe and reliable, convenient and practical.

Description of drawings

Fig. 1 is a kind of generalized section that is used to control the wafer-type lock piston device of fluid in the embodiment of the invention 1;

Fig. 2 is a rotary disk piston portion schematic top plan view among Fig. 1;

Fig. 3 is a kind of generalized section that is used to control the ball-type lock piston device of fluid in the embodiment of the invention 2.

Each mark shown in the figure:

The 1-lock core, 2-lock body, 3-wafer-type piston, the 4-little spring, pellet shot from a slingshot before the pellet shot from a slingshot behind the 5-, 6-, 7-lock core through hole, 8-lock body through hole, 9-teeth, 10-rifle head, 11-piston hole, 12-loose slot, the flat slotted eye of 13-, 14-ball-type piston holder, 15-big spring, 16-ball-type piston.

The specific embodiment

The present invention is further described below in conjunction with drawings and Examples:

Embodiment 1:Show as Fig. 1, a kind of locking device that is used to control fluid, comprise lock body 2, lock core 1, wafer-type piston 3, wherein: lock body 2 is cylindrical shape, can be fixed on the access of fluid container, lock body 2 is provided with the lock body through hole 8 that the access with fluid container is complementary, lock core 1 is the cylindrical shape that is complementary with lock body 2, lock core 1 is provided with the lock core through hole 7 that is communicated with lock body through hole 8, wafer-type piston 3 is movably connected in lock core 1 bottom, and loose slot 12 is complementary on lock core 1 bottom and the wafer-type piston 3, as shown in Figure 2, wafer-type piston 3 is provided with piston hole 11, lock body 2 is provided with flat slotted eye 13, and the size of the size of flat slotted eye 13 and piston hole 11 is complementary, and is provided with little spring 4 between lock body 2 and the lock core 1, back pellet shot from a slingshot 5, preceding pellet shot from a slingshot 6, little spring 4 is positioned at lock body 2 inside, inconsistent with back pellet shot from a slingshot 5, back pellet shot from a slingshot 5 is inconsistent with preceding pellet shot from a slingshot 6, and preceding pellet shot from a slingshot 6 is subjected to elastic force to act on lock core 2 inside to 7 stretching, extensions of lock core through hole when flat, the pellet shot from a slingshot hole of lock core 2 is provided with step, deviates to lock core through hole 7 with pellet shot from a slingshot 6 before avoiding.Lock body 2 flexibly connects with lock core 1, and it is two piston holes that wafer-type piston 3 is provided with piston hole 11.

In Fig. 1, lock body 2 structures are cylindrical tube, when supporting filing gun head 10 or key insert put in place after, the teeth 9 of supporting design preceding pellets shot from a slingshot 6 all in the lock is squeezed and the back pellet shot from a slingshot 5 between the contact surface slit, just in time with contact surface slit between lock core 1 and the lock body 2 to last, at same straight line, form free cheek; The rotation of supporting filing gun head, interlock wafer-type piston action is opened the lock body through hole 8 of tubulose, can be used for gas and normally fills.After fluid fillers was finished, filing gun head (key) spinning reduction was locked.After filing gun head (key) is extracted, be subjected to little spring 4 effects, back pellet shot from a slingshot 5 is stuck between lock body 2 and the lock core 1, places restrictions on the relative motion of lock body 2 and lock core 1.When fluid discharges, because container internal pressure is greater than external pressure, piston 3 come-up that is squeezed has relative motion with lock core, lock body through hole 8 to piston 3 bottoms again the lock core through hole 7 to tubulose form paths, so whether no matter locking state all can be used for fluid and normally discharge.When fluid fillers, piston 3 receptor external fluid extruding is closed atretic body through hole 8 at locking state, but when unblanking because lock core 1 has relative motion with lock body 2, opened path.

Fig. 2 is rotary disk piston portion schematic top plan view, in Fig. 2, two piston holes 11 and a loose slot 12 is arranged on the wafer-type piston 3, loose slot 12 is used for lock core interlock piston and rotates, and when fluid discharges, the stressed extruding of piston, lock core is done radially moving relatively.When state left by lock, piston hole 11 moves to dotted line marker location shown in Figure 2, on 13 pairs of flat slotted eyes on the lock body, forms passage, can be used for fluid and normally fill.

Embodiment 2:The difference of present embodiment and embodiment 1 is, piston is a spring ball-type piston as shown in Figure 3, in Fig. 3, lock construction is cylindrical tube, when supporting filing gun head (key) insert put in place after, all preceding pellets shot from a slingshot 6 are squeezed and back contact surface slit between the pellet shot from a slingshot 5 in the lock, just in time with contact surface slit between lock core 1 and the lock body 2 to last, at same straight line, form free cheek; Be subjected to big spring 15 elastic force effects, lock core 1 produces radially relative moving with lock body 2, drives the ball-type piston holder 14 and the ball-type piston 15 that are fixed on the lock core 1 and moves together, opens lock body through hole 8, can be used for fluid and normally fills.After fluid fillers was finished, filing gun head (key) was extracted, and was pressed into lock core 1 and was the state of locking.After filing gun head (key) is extracted, be subjected to little spring 4 effects, back pellet shot from a slingshot 5 is stuck between lock body 2 and the lock core 1, places restrictions on the relative motion of lock body 2 and lock core 1.When fluid discharges, because container internal pressure is greater than external pressure, ball-type piston 15 be squeezed the come-up with ball-type piston holder 14, lock core 1 relative motion is arranged, lock body through hole 8 forms paths to lock core through hole 7 again to ball-type piston 3 bottoms, so whether no matter locking state all can be used for fluid and normally discharge.When fluid fillers, the extruding of ball-type piston 16 receptor external fluid, ball-type piston 16 moves to lock body through hole 8 directions, be subjected to 16 engagements of ball-type piston to be closure state at the situation lock body through hole 8 of locking, but when unblanking because lock core 1 has relative motion with lock body 2, ball-type piston 16 does not mesh with lock body through hole 8, has opened path.On the above basis, can be by key, lock core and lock body structure be done little improvement, be not difficult to realize that unlocking condition also can extract key, make things convenient for some application need, repeat no more.

Above described be specific embodiments of the invention and the know-why used, if the change of doing according to conception of the present invention, when the function that it produced does not exceed spiritual that manual and accompanying drawing contain yet, must belong to protection scope of the present invention.

Claims

1. locking device that is used to control fluid, it is characterized in that: between lock body and the lock core piston is arranged, wherein: locking device is fixed on the exit and entrance of fluid container, lock body is provided with the lock body through hole that the access with fluid container is complementary, lock core is provided with the lock core through hole that is communicated with the lock body through hole, piston is movably connected in the lock core bottom, and the relative lock core of piston has the displacement space of certain limit, affected by lock core and do displacement movement.

2. a kind of locking device that is used to control fluid according to claim 1 is characterized in that: when lock was opened, lock core interlock piston holder drags piston and lock body produces displacement, opens the fluid through-hole device, can be used for filling fluid to internal tank.

3. a kind of locking device that is used to control fluid according to claim 1 and 2 is characterized in that: when locking, and the relative lock body limitation of activity of lock core, this moment, fluid filled to internal tank, piston is subjected to the external pressure effect, and auto-closing through hole device can not normally fill fluid to internal tank.

4. a kind of locking device that is used to control fluid according to claim 3 is characterized in that: when container not being filled fluid, piston receptor fluid pressure jack-up is opened through hole, no matter whether lock, and equal outside exhaust fluid.

5. a kind of locking device that is used to control fluid according to claim 4 is characterized in that: lock body, lock core, piston interlock effect produce the state that opens or closes of through hole device.

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