CN102141456A - Low-pressure alarming indicator and firefighting system having same - Google Patents
Low-pressure alarming indicator and firefighting system having same Download PDFInfo
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- CN102141456A CN102141456A CN2010106173716A CN201010617371A CN102141456A CN 102141456 A CN102141456 A CN 102141456A CN 2010106173716 A CN2010106173716 A CN 2010106173716A CN 201010617371 A CN201010617371 A CN 201010617371A CN 102141456 A CN102141456 A CN 102141456A
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- microswitch
- pressure
- indicator
- bourdon tube
- low pressure
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Abstract
The invention discloses a low-pressure alarming indicator and a firefighting system having the same. Two groups of pressure sensitive elements which are two sets of elastic elements, namely a spiral bourdon tube and a C-shaped bourdon tube, are adopted, the spiral bourdon tube and the C-shaped bourdon tube are deformed under the action of the internal pressure of a detected device, a pointer is driven to rotate and the on and off of a pressure switch are controlled according to the deformation, and the use requirements for accurate pressure measurement, indication and alarming in a variable and severe environment are met while the shockproof, anticorrosion and high/low-temperature shock impact resistant environmental requirements are met.
Description
Technical field
The present invention relates to manometer and make the field, in particular, relate to a kind of low pressure alarming indicator and have the fire extinguishing system of this low pressure alarming indicator.
Background technology
Along with the continuous progress of society, people's rhythm of life is also in continuous quickening, thereby it is also more and more higher to make people possess rate request to the trip instrument.Aircraft is as good comfortable again, at a high speed the vehicles of a kind of mobility, the trip instrument of first-selection when having become people and going on a journey, and therefore, people are also more and more higher to the requirement of its security performance aspect.
The manometer of existing application on aircraft fire suppression system, promptly be used to show the manometer of aerial extinguishing device (fire-suppression bottle) internal firefighting agent pressure, its inner structure adopts the gear drive of general instrument, drives the pressure that pointer is indicated the agent of current flame snuffer internal firefighting by gear torsion spring driving parts.Because, the residing environment of aircraft is more changeable, therefore, various devices used on the aircraft all must have high strength, precision, shockproof, anticorrosion and stand the performance of high and low temperature jerk, but, at the manometer that uses on the aircraft fire suppression system during at indication fire-suppression bottle internal firefighting agent pressure, because, used in the prior art is general gear drive, its intensity, precision can't be tackled the environment of the residing changeable sternness of aircraft, in the process of using, make a fault easily, therefore, can't satisfy the request for utilization of indication fire-suppression bottle internal firefighting agent pressure.
Summary of the invention
In view of this, the invention provides a kind of low pressure alarming indicator and have the fire extinguishing system of this low pressure alarming indicator, owing to adopt gear drive, and can't satisfy environmental requirement problem to the request for utilization of correct measurement of pressure and indication when higher to overcome manometer of the prior art.
For achieving the above object, the invention provides following technical scheme:
A kind of low pressure alarming indicator has pointer and dial plate, comprising:
Indicate the dial plate of gas pressure value;
Be connected in described dial plate below and be used for the jointing that is connected with tested device;
Be connected in the admission pressure end at described dial plate rear;
Link to each other with pointer and drive the spiral spring pipe that described pointer rotates, described spiral spring pipe is connected with described tested device by described admission pressure end;
The C type bourdon tube that is connected with described tested device by described admission pressure end;
The microswitch that is connected with described C type bourdon tube.
Preferably, when the pressure in the described tested device was 230 pounds/square inch (1.6 MPa), described C type bourdon tube promoted the described microswitch output switching signal of connection to predeterminated position, display alarm.
Preferably, described microswitch is the high power capacity microswitch.
Preferably, described microswitch is the mechanical type microswitch.
Preferably, described microswitch is the high withstand voltage microswitch of high capacity, and the high withstand voltage microswitch of described high capacity works under 7 Ampere currents, and withstand voltage is 250 volts.
Preferably, described jointing is the general aviation joint.
A kind of fire extinguishing system comprises: the described low pressure alarming indicator of claim 1, fire-suppression bottle and fire extinguishing system controller;
The admission pressure end of described low pressure alarming indicator is connected with described fire-suppression bottle
The jointing of described low pressure alarming indicator is connected with described fire extinguishing system controller.
Preferably, described jointing is the aviation special joint.
Via above-mentioned technical scheme as can be known, compared with prior art, the invention discloses a kind of low pressure alarming indicator and have the fire extinguishing system of this low pressure alarming indicator, this low pressure alarming indicator utilizes spiral spring pipe and two groups of flexible members of C type bourdon tube, under manometric internal pressure, produce deformation, under the effect of pressure, drive gauge hand by the spiral spring pipe and rotate, and on dial plate, show pressure; Simultaneously, the C type bourdon tube of the effect of being stressed cooperates microswitch to export electric signal when pressure drops to predetermined value, promptly reports to the police.By the disclosed low pressure alarming indicator of the invention described above and have the fire extinguishing system of this low pressure alarming indicator, adopt two groups of sensing elements, be that spiral spring pipe and two groups of flexible members of C type bourdon tube produce deformation under internal pressure, because its deformation is directly relevant with the fire-suppression bottle internal pressure in the fire extinguishing system that connects, therefore, it can satisfy shockproof, anticorrosion and stand the environmental requirement of high and low temperature jerk, is implemented in the changeable severe environment request for utilization to the correct measurement of pressure, indication and warning.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments of the invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the accompanying drawing that provides.
Fig. 1 is the structural representation of the disclosed a kind of low pressure alarming indicator of the embodiment of the invention;
Fig. 2 is the side-looking structural representation of the disclosed a kind of low pressure alarming indicator of the embodiment of the invention;
Fig. 3 is the structural representation of the disclosed a kind of fire extinguishing system of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Employed manometer on existing aircraft fire suppression system, what generally adopt all is gear drive, because the process of its use is subject to the limitation of ectocine, move residing environmental requirement at aircraft, promptly in changeable environment, and external environment can't satisfy when relatively severeer the correct measurement of pressure and the request for utilization of indication.Therefore, the invention discloses a kind of low pressure alarming indicator, to satisfy the use in various changeable, severe environment, concrete structure and implementation are elaborated by following examples.
See also accompanying drawing 1 and accompanying drawing 2, structural representation for a kind of low pressure alarming indicator disclosed by the invention mainly comprises: manometric pointer 101, spiral spring pipe 102, C type bourdon tube 103, microswitch 104, dial plate 105, jointing 106 and admission pressure end 107.
C type bourdon tube 103, spiral spring pipe 102 all are communicated with (cavity of flame snuffer or fire-suppression bottle) by the cavity of admission pressure end 107 and tested device.
C type bourdon tube 103 is connected with microswitch 103, and produces deformation under the effect of pressure, touches microswitch 104 when the particular pressure value.Microswitch 104 sends electric signal, is transferred to peripheral control unit by jointing 106.
This low pressure alarming indicator is arranged at the below of dial plate 105 with tested device (flame snuffer or the fire-suppression bottle) jointing 106 that is connected, and is convenient to be connected with the controller of tested device.
Need to prove that spiral spring pipe 102 and C type bourdon tube 103 are flexible member, under the effect of pressure, can produce distortion.
After this low pressure alarming indicator disclosed by the invention passes through jointing 106 and tested device is connected, under the effect of the pressure in tested device, also form corresponding pressure in this low pressure alarming indicator, C type bourdon tube 103 is under pressure and produces distortion at this moment, trigger connected microswitch 104 according to distortion then, simultaneously, spiral spring pipe 102 forms pipe end under identical pressure, and along connected pointer 101 rotations of the axial drive of self, and the pressure that pointer 101 is shown in the current tested device by corresponding dial plate 105, and 0～1.6 MPa range on this dial plate 105 is provided with the red staining zone.
In the process of carrying out pressure test, pressure sustainable growth in tested device, make spiral spring pipe 102 and C type bourdon tube 103 continue to take place deformation, and simultaneously in the process of deformation, directly show current pressure by dial plate 105, and when pressure acquires a certain degree, promote the microswitch 104 of connection by C type bourdon tube 103, make microswitch 104 that the connecting and disconnecting of the circuit signal take place, make it reach the effect of pressure switch.
But the force value on dial plate 105 is shown as 230PSI (Pounds per square inch, pound/square inch), and promptly during 1.6 MPas, 105 output switching signals of microswitch that this C type bourdon tube 103 promotes to connect are to predeterminated position, and display alarm.
Need to prove that on the above-mentioned disclosed basis of the present invention, this microswitch 104 can be the high power capacity microswitch, also can be the mechanical type microswitch.
In addition, also can the high capacity high withstand voltage microswitch of this microswitch 104, this be more excellent selection, when selecting microswitch 104 be the withstand voltage microswitch of high capacity height, it generally can be withstand voltage 250 volts, and pass through 7 Ampere currents operate as normal.
Need to prove, the above-mentioned jointing 106 that connects with tested device can adopt different special joints under different environment, the present invention is not limited in aviation field, therefore, when this low pressure alarming indicator disclosed by the invention was used on the aircraft, this jointing 106 adopted the general aviation joint.
In addition, to the disclosed low pressure alarming indicator of the invention described above according to GJB150.3-1986 military equipment environmental experiment method, it is carried out the test of high temperature, low temperature, temperature shock, damp and hot, mould, salt fog and acceleration.Wherein, its hot operation temperature is 60 ℃ as can be known, and storage temperature is 70 ℃; The low-temperature working temperature is-40 ℃, and storage temperature is-55 ℃.
The present invention is by adopting two groups of sensing elements, be that spiral spring pipe and two groups of flexible members of C type bourdon tube produce deformation under internal pressure, because its deformation is directly relevant with the internal pressure of the tested device that connects, and, satisfy military requirement as can be known by above-mentioned concrete application testing, promptly adopt flexible member as the gear train in the low pressure alarming indicator disclosed by the invention, also can satisfy shockproof, anticorrosion and stand the aeronautical environment requirement of high and low temperature jerk, be implemented in measurement correct in the changeable severe environment to pressure, indication and the request for utilization of reporting to the police.
Describe a kind of low pressure alarming indicator among the disclosed embodiment of the invention described above in detail, in the system of device of the present invention applicable to various ways, therefore, the invention also discloses a kind of fire extinguishing system, and this fire extinguishing system is applied on the space shuttle, provides specific embodiment below and is elaborated.
See also accompanying drawing 3, the structural representation for a kind of fire extinguishing system disclosed by the invention mainly comprises: low pressure alarming indicator 201, fire-suppression bottle 202 and fire extinguishing system controller 203.
This low pressure alarming indicator 201 is the disclosed low pressure alarming indicator of the invention described above embodiment, so it mainly comprises: manometric pointer 101, spiral spring pipe 102, C type bourdon tube 103, microswitch 104, dial plate 105, jointing 106 and admission pressure end 107.Each parts in the above-mentioned low pressure alarming indicator 201 such as the unanimity described in the above-mentioned embodiment of the invention are no longer given unnecessary details (concrete structure can be consulted accompanying drawing 1 and accompanying drawing 2) here.
In this fire extinguishing system disclosed by the invention, the admission pressure end 107 of low pressure alarming indicator 201 is connected with fire-suppression bottle 202, and the jointing 106 of low pressure alarming indicator 201 links to each other with fire extinguishing system controller 203.
Because this fire extinguishing system is used for space shuttle, therefore, this low pressure alarming indicator 201 is the general aviation joint with the jointing 106 of this fire extinguishing system controller 203.
Under the effect of the pressure in fire-suppression bottle 202, also form corresponding pressure in this low pressure alarming indicator 201, C type bourdon tube 103 is under pressure and produces distortion at this moment, trigger connected microswitch 104 according to distortion then, simultaneously, spiral spring pipe 102 forms pipe end under identical pressure, and rotates along the connected pointer 101 of the axial drive of self, and the pressure that pointer 101 is shown in the current tested device by corresponding dial plate 105.
In the process of carrying out pressure test, pressure sustainable growth in tested device, make spiral spring pipe 102 and C type bourdon tube 103 continue to take place deformation, and simultaneously in the process of deformation, directly show current pressure by dial plate 105, and when pressure acquires a certain degree, promote the microswitch 104 of connection by C type bourdon tube 103, make microswitch 104 that the connecting and disconnecting of the circuit signal take place, make it reach the effect of pressure switch.And when the force value on dial plate 105 was shown as 230PSI, 105 output switching signals of microswitch that this C type bourdon tube 103 promotes to connect were to predeterminated position, and display alarm.
In sum:
By device disclosed by the invention and system, adopt two groups of sensing elements, under the effect of tested device internal pressure, produce deformation, and according to this deformation drive pointer rotation, and the break-make of controlled pressure switch, be implemented in the changeable severe environment purpose to the correct measurement of pressure, indication and warning.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. a low pressure alarming indicator has pointer and dial plate, it is characterized in that, comprising:
Indicate the dial plate of gas pressure value;
Be connected in described dial plate below and be used for the jointing that is connected with tested device;
Be connected in the admission pressure end at described dial plate rear;
Link to each other with pointer and drive the spiral spring pipe that described pointer rotates, described spiral spring pipe is connected with described tested device by described admission pressure end;
The C type bourdon tube that is connected with described tested device by described admission pressure end;
The microswitch that is connected with described C type bourdon tube.
2. indicator according to claim 1 is characterized in that, when the pressure in the described tested device was 230 pounds/square inch (1.6 MPa), described C type bourdon tube promoted the described microswitch output switching signal of connection to predeterminated position, display alarm.
3. indicator according to claim 1 is characterized in that, described microswitch is the high power capacity microswitch.
4. indicator according to claim 1 is characterized in that, described microswitch is the mechanical type microswitch.
5. indicator according to claim 1 is characterized in that, described microswitch is the high withstand voltage microswitch of high capacity, and the high withstand voltage microswitch of described high capacity works under 7 Ampere currents, and withstand voltage is 250 volts.
6. indicator according to claim 1 is characterized in that, described jointing is the general aviation joint.
7. a fire extinguishing system is characterized in that, comprising: the described low pressure alarming indicator of claim 1, fire-suppression bottle and fire extinguishing system controller;
The admission pressure end of described low pressure alarming indicator is connected with described fire-suppression bottle
The jointing of described low pressure alarming indicator is connected with described fire extinguishing system controller.
8. system according to claim 7 is characterized in that, described jointing is the aviation special joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106173716A CN102141456A (en) | 2010-12-30 | 2010-12-30 | Low-pressure alarming indicator and firefighting system having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106173716A CN102141456A (en) | 2010-12-30 | 2010-12-30 | Low-pressure alarming indicator and firefighting system having same |
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| Publication Number | Publication Date |
|---|---|
| CN102141456A true CN102141456A (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106173716A Pending CN102141456A (en) | 2010-12-30 | 2010-12-30 | Low-pressure alarming indicator and firefighting system having same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106581893A (en) * | 2016-11-30 | 2017-04-26 | 北京天康达科技发展有限公司 | Fire extinguishing system for vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5848651A (en) * | 1996-01-23 | 1998-12-15 | Mija Industries, Inc. | Signalling fire extinguisher assembly |
| CN2534047Y (en) * | 2002-01-25 | 2003-02-05 | 王文学 | Tyre low-pressure electronic alarmer |
| CN2598033Y (en) * | 2002-12-13 | 2004-01-07 | 天津市泰菲特仪器仪表技术有限公司 | Pressure controller |
| JP2008148987A (en) * | 2006-12-19 | 2008-07-03 | Morita Ug:Kk | Pressure accumulation type fire extinguishant storage container having indicating manometer with contact for fire extinguisher |
| US7574911B2 (en) * | 1996-01-23 | 2009-08-18 | Mija Industries, Inc. | Remote fire extinguisher station inspection |
| CN201329143Y (en) * | 2008-11-27 | 2009-10-21 | 李佳达 | Extinguisher and pressure alarm device thereof |
-
2010
- 2010-12-30 CN CN2010106173716A patent/CN102141456A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5848651A (en) * | 1996-01-23 | 1998-12-15 | Mija Industries, Inc. | Signalling fire extinguisher assembly |
| US7574911B2 (en) * | 1996-01-23 | 2009-08-18 | Mija Industries, Inc. | Remote fire extinguisher station inspection |
| CN2534047Y (en) * | 2002-01-25 | 2003-02-05 | 王文学 | Tyre low-pressure electronic alarmer |
| CN2598033Y (en) * | 2002-12-13 | 2004-01-07 | 天津市泰菲特仪器仪表技术有限公司 | Pressure controller |
| JP2008148987A (en) * | 2006-12-19 | 2008-07-03 | Morita Ug:Kk | Pressure accumulation type fire extinguishant storage container having indicating manometer with contact for fire extinguisher |
| CN201329143Y (en) * | 2008-11-27 | 2009-10-21 | 李佳达 | Extinguisher and pressure alarm device thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106581893A (en) * | 2016-11-30 | 2017-04-26 | 北京天康达科技发展有限公司 | Fire extinguishing system for vehicle |
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Application publication date: 20110803 |