CN102114306A - Gas pressure alarm device - Google Patents
Gas pressure alarm device Download PDFInfo
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- CN102114306A CN102114306A CN2009102175762A CN200910217576A CN102114306A CN 102114306 A CN102114306 A CN 102114306A CN 2009102175762 A CN2009102175762 A CN 2009102175762A CN 200910217576 A CN200910217576 A CN 200910217576A CN 102114306 A CN102114306 A CN 102114306A
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- gas pressure
- spool
- alarm device
- contact surface
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Abstract
The invention provides a gas pressure alarm device on the one hand. The gas pressure alarm device comprises a shell, a triggering part, a flexible pressure device, a first induction part and a second induction part, wherein the shell is internally provided with a chamber; the triggering part is sheathed in the shell, the contact end of the triggering part is arranged in the chamber of the shell, the extending end extends from the contact end and passes through an air inlet at the bottom of the shell for extending to enter an external gas pipeline, and the triggering part moves vertically in the chamber in response to gas pressure entering in the chamber; the flexible pressure device is arranged above the triggering part and is contacted with a first contact surface of the contact end of the triggering part; the first induction part is electrically connected to an external control device, arranged on the shell and selectively contacted with the flexible pressure device in response to the gas pressure entering the chamber of the shell; and the second induction part is electrically connected to the external control device, arranged below the shell and selectively contacted with a second contact surface of the contact end of the triggering part, and the second contact surface is opposite to the first contact surface.
Description
Technical field
The present invention relates to medical instruments field, be specifically related to a kind of gas pressure alarm device.
Background technology
Source of the gas all is equipped with in the armarium (as respirator, anesthetic machine) commonly used, equipment such as respirator, anesthetic machine all needs to guarantee patient's eupnea in use, this just needs to guarantee that the air pressure of patient respiratory is in a suitable scope, can not be too high or too low, therefore, safety in order to guarantee to use needs to be equipped with corresponding gas pressure alarm in the air-channel system of these armarium.Gas pressure alarm at present commonly used all adopts pressure sensor and control corresponding device is realized warning function, its complex structure, and the working pressure pick off need be equipped with special power supply for it, and pressure transducer self precision is higher, generally is unsuitable for using in rugged environments such as inflammable, explosive, moist, high temperature, low temperature.
Summary of the invention
The object of the present invention is to provide a kind of simple gas pressure alarm device, it can solve above-mentioned the problems of the prior art.
At above-mentioned purpose, a kind of gas pressure alarm valve is provided according to a first aspect of the invention, it is arranged in the air-channel system of armarium, link to each other with the source of the gas of armarium, this gas pressure alarm device comprises: housing, hold or install each member of gas pressure alarm device, enclosure interior has chamber; Trigger part, be set in the housing, the contact jaw that triggers part is arranged in the intravital chamber of shell, and the elongated end that triggers part extends and passes the air inlet of housing bottom and extend into the extraneous gas pipeline from contact jaw, triggers part to move up and down in chamber in response to the gas pressure that enters chamber; Elastic compression devices is arranged on the top of triggering part, and elastic compression devices contacts with first contact surface of the contact jaw that triggers part; First induction pieces is electrically connected to the external control device, is placed on the housing and in response to the gas pressure in the chamber that enters housing optionally to contact with elastic compression devices; Second induction pieces is electrically connected to the external control device, is placed in the housing below, and optionally contacts with second contact surface of the contact jaw that triggers part in response to the gas pressure in the chamber that enters housing, and second contact surface is relative with first contact surface.
Particularly, gas pressure alarm device according to first aspect present invention has normal pressure state and improper pressure state, wherein, in the normal pressure state, the interior gas pressure of chamber that enters housing is higher than default gas pressure marginal value, trigger part and move up under the pressure effect of gas pressure that enters chamber and elastic compression devices, second contact surface and second induction pieces that trigger part disengage, and elastic compression devices contacts with first induction pieces; In improper pressure state, the interior gas pressure of chamber that enters housing is lower than default gas pressure marginal value, triggering part moves down under the pressure effect of gas pressure that enters chamber and elastic compression devices, second contact surface that triggers part contacts with second induction pieces, and the elastic compression devices and first induction pieces disengage.
Preferably, be pressure valve according to the gas pressure alarm device of first aspect present invention, it comprises: valve body, hold or each member of setting pressure valve; Spool, be set in the valve body, the spool termination of spool is arranged in the intravital valve pocket of valve, and the valve rod of spool extends from the spool termination and passes the air inlet of valve body bottom and extend into the extraneous gas pipeline, and spool moves up and down in valve pocket in response to the gas pressure that enters valve pocket; Elastic compression devices, comprise the press part that is installed in the valve body top and be arranged on press part and the spool termination of spool between the compression spring, the lower end of compression spring contacts with first contact surface of spool termination and the upper end is close to press part; First induction pieces is electrically connected to the external control device, be embedded in the press part of elastic compression devices and in response to the gas pressure in the valve pocket that enters valve body optionally with the compression spring on end in contact; Second induction pieces is electrically connected to the external control device, is placed in the valve body below, and optionally contacts with second contact surface of spool in response to the gas pressure in the valve pocket that enters valve body, and second contact surface is relative with first contact surface.
Preferably, gas pressure alarm device according to first aspect present invention, wherein, in the normal pressure state, the interior gas pressure of valve pocket that enters valve body is higher than default gas pressure marginal value, spool moves up under the pressure effect of gas pressure that enters valve pocket and compression spring, and second contact surface and second induction pieces of spool disengage; In improper pressure state, the interior gas pressure of valve pocket that enters valve body is lower than default gas pressure marginal value, and spool moves down under the pressure effect of gas pressure that enters valve pocket and compression spring, and second contact surface of spool contacts with second induction pieces.
Preferably, according to the gas pressure alarm device of first aspect present invention, wherein, the mode that the press part of elastic compression devices is installed with screw thread is screwed in the top of valve body.
Preferably, according to the gas pressure alarm device of first aspect present invention, wherein, press part is an adjustment screw.
Preferably, according to the gas pressure alarm device of first aspect present invention, wherein, first induction pieces is screwed in or is inserted in the press part.
Preferably, according to the gas pressure alarm device of first aspect present invention, wherein, the compression spring is the helical spring that is set on the spool termination of spool, perhaps is the sheet spring of roof pressure between press part and spool termination.
Preferably, according to the gas pressure alarm device of first aspect present invention, wherein, second induction pieces is screwed in or is inserted in the sidewall of valve body.
A kind of respirator is provided according to a second aspect of the invention, has been provided with above-mentioned gas pressure alarm device in the air-channel system of this respirator according to first aspect present invention.
A kind of anesthetic machine is provided according to a third aspect of the invention we, has been provided with above-mentioned gas pressure alarm device in the air-channel system of this anesthetic machine according to first aspect present invention.
The present invention has following technique effect:
Gas pressure alarm valve according to the present invention is simple in structure, control mode is easy, cost is low, need not be equipped with power source special, relies on the pressure of valve inner to control the precompression device fully, thereby realizes reporting to the police; Gas pressure alarm device of the present invention can be worked in abominable working environment such as inflammable, explosive, moist, high temperature, low temperature, and is safe and reliable, the life-span is long.
Should be appreciated that above generality is described and the following detailed description is all enumerated and illustrative, purpose is for to the claimed further instruction that the invention provides.
Description of drawings
Accompanying drawing constitutes the part of this description, is used to help further understand the present invention.These accompanying drawings illustrate some embodiments of the present invention, and are used for illustrating principle of the present invention with description.Identical in the accompanying drawings parts are represented with identical label.In the accompanying drawing:
Fig. 1 shows the structural representation of gas pressure warning according to an embodiment of the invention, wherein shows bleed pressure state just often;
Fig. 2 shows the structural representation of gas pressure alarm valve according to an embodiment of the invention, the state when wherein showing bleed pressure subcritical value.
The specific embodiment
To come embodiments of the present invention are described based on design of the present invention and ultimate principle below.
Gas pressure alarm device according to the present invention is arranged in the air-channel system of armarium, links to each other with the source of the gas of armarium, carries out low pressure alarming when low so that cross at bleed pressure.Gas pressure alarm device implementation of the present invention is simple, need not complicated electronic component (for example pick off), and the use device pressure inside is controlled fully, sends alarm signal according to gas pressure alarm device pressure inside situation of change.Particularly, gas pressure alarm device according to the present invention comprises: housing, and it is used for holding or installing each member of gas pressure alarm device, and housing has the chamber that is located at inside; Trigger part, it is set in the housing, the contact jaw that triggers part is arranged in the chamber of housing, and elongated end extends and passes the air inlet of housing bottom from above-mentioned contact jaw, and then extend in the extraneous gas pipeline, wherein trigger part and in chamber, move up and down in response to the gas pressure that enters chamber, by trigger moving up and down of part just can trigger different induction pieces (as described below) thus send corresponding status signal; Elastic compression devices, it is arranged on the top of triggering part, and this elastic compression devices contacts with first contact surface of the contact jaw that triggers part; First induction pieces, it is electrically connected to the external control device, be placed on the housing and in response to the gas pressure in the chamber that enters housing and optionally contact with elastic compression devices, first induction pieces is used for the normal state of induction air pressure and sends the corresponding signal of telecommunication to control device; Second induction pieces, be electrically connected to the external control device, be placed in the housing below, and optionally contact with second contact surface of the contact jaw that triggers part in response to the gas pressure in the chamber that enters housing, and second contact surface is relative with described first contact surface, and second induction pieces is used for the unusual state of induction air pressure and sends the corresponding signal of telecommunication to control device.
Particularly, gas pressure alarm device according to the present invention has normal pressure state and improper pressure state.In the normal pressure state, the gas pressure that enters in the housing cavity is higher than default gas pressure marginal value (this marginal value can be provided with at different patients' needs), triggering part moves up under the pressure effect of gas pressure that enters chamber and elastic compression devices, second contact surface and second induction pieces that trigger part disengage, and elastic compression devices then contacts with first induction pieces.Under this state, triggering part contacts with first induction pieces by elastic compression devices, trigger part and be equivalent to a switch element, by making first induction pieces send the signal of telecommunication, thereby make control device can know the atmospheric pressure state of this moment to control device with contacting of first induction pieces.
On the other hand, in improper pressure state, the gas pressure that enters in the housing cavity is lower than default gas pressure marginal value, triggering part moves down under the pressure effect of gas pressure that enters chamber and elastic compression devices, second contact surface that triggers part contacts with second induction pieces, and the elastic compression devices and first induction pieces disengage.Under this state, the contact jaw that triggers part contacts with second induction pieces, triggers second induction pieces thus and sends the signal of telecommunication to control device, thereby make control device can know atmospheric pressure state correspondingly.
Aforesaid, according to principle of the present invention, the bleed pressure alarm device is to send the corresponding signal of telecommunication by the different induction pieces of triggering part triggering to control device to realize bleed pressure warning and control, therefore, first induction pieces in this bleed pressure alarm device, second induction pieces, triggering part and elastic compression devices all need be made by conductive material, and relatively, the housing that is used to hold and above-mentioned parts are installed then need be made by insulant, so that the bleed pressure alarm device can form different electric paths according to the different connection status of each parts.
Preferably, Fig. 1 shows the gas pressure alarm device 100 according to a simple embodiment of the present invention, in the present embodiment, this gas pressure alarm device 100 is a pressure valve, its basic engineering in existing pressure valve forms, and has utilized existing structure and part, and implementation is simpler.This pressure valve 100 comprises: valve body (corresponding to above-mentioned housing) 110, and it is used to hold or each member of setting pressure valve 100; Spool (corresponding to above-mentioned triggering part) 120, be set in the valve body 110, the spool termination of spool (corresponding to above-mentioned contact jaw) 121 is arranged in the valve pocket 111 in the valve body 110, the valve rod 122 of spool (corresponding to above-mentioned elongated end) 121 extends and passes the air inlet 112 of valve body 110 bottoms and stretch out valve body 110 from the spool termination, and then extend in the extraneous gas pipeline, wherein spool 120 moves up and down in valve pocket 111 in response to the gas pressure that enters valve pocket 111, just can trigger different induction pieces (as described below) by moving up and down of spool 120 thus send corresponding status signal; Elastic compression devices 130, it comprise the press part 131 that is installed in valve body 110 tops and be arranged on press part 131 and the spool termination 121 of spool 120 between compression spring 132, the lower end of compression spring 132 contacts with the first contact surface 121a of spool termination 121 and the upper end is close to press part 131; First induction pieces 140 is electrically connected to the external control device, be embedded in the press part 131 of elastic compression devices, and in response to the gas pressures in the valve pocket 111 that enters valve body 110 optionally with the last end in contact of compression spring 132; Second induction pieces 150, be electrically connected to the external control device, it is placed in valve body 110 belows, and optionally contacts with the second contact surface 121b of spool 120 in response to the gas pressure in the valve pocket 111 that enters valve body 110, and this second contact surface 121b is relative with the first contact surface 121a.
Same, the pressure valve 100 of preferred embodiment also comprises normal pressure state and improper pressure state.In the normal pressure state, the valve pocket 111 interior gas pressures that enter valve body 110 are higher than default gas pressure marginal value, spool 120 moves up under the pressure effect of gas pressure that enters valve pocket 111 and compression spring 132, and the second contact surface 121b and second induction pieces 150 of spool 120 disengage; In improper pressure state, the valve pocket 111 interior gas pressures that enter valve body 110 are lower than default gas pressure marginal value, spool 120 moves down under the pressure effect of gas pressure that enters valve pocket 111 and compression spring 132, and the second contact surface 121b of spool 120 contacts with second induction pieces 150.
In the foregoing description, first induction pieces 140 directly is embedded in the press part 131 of elastic compression devices, thereby optionally contacts with the compression spring 132 that is arranged on press part 131 belows, is a kind of simple set-up mode.Certainly in other embodiments, first induction pieces 140 and elastic compression devices 130 also can adopt other modes that is fit to, for example, first induction pieces 140 and press part 131 directly are made of one the member of formula, be provided with thereunder and will compress spring 132, and optionally contact with press part 131.
Particularly, in the present embodiment, the mode that the press part 131 of elastic compression devices 130 is installed with screw thread is screwed in the top of valve body 110, and this moment, press part 131 can directly adopt adjustment screw, and the top of valve body 110 is formed with corresponding matching thread.In other embodiments, the press part of elastic compression devices also can adopt mode (for example adopting chute) slidably to be installed in the top of housing.Except above-mentioned easy-to-dismount mode, press part also can directly be soldered to or adopt friction tight mode to be fixed to valve body 110.
Further, the compression spring in the present embodiment 132 is the helical spring on the spool termination 121 that is set in spool 120; In other embodiments, then can be the sheet spring of roof pressure between press part and spool termination.
The above-mentioned specific embodiment and exemplary preferred embodiment that is according to bleed pressure alarm device of the present invention; need to prove; be provided with according to the respirator of bleed pressure alarm device of the present invention and anesthetis too in protection scope of the present invention; wherein, in respirator or narcotic air-channel system, be provided with according to gas pressure alarm device of the present invention.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a gas pressure alarm device is arranged in the air-channel system of armarium, links to each other with the source of the gas of described armarium, it is characterized in that, described gas pressure alarm device comprises:
Housing holds or installs each member of described gas pressure alarm device, and described enclosure interior has chamber;
Trigger part, be set in the described housing, the contact jaw of described triggering part is arranged in the intravital chamber of described shell, the elongated end of described triggering part extends and passes the air inlet of described housing bottom and extend into the extraneous gas pipeline from described contact jaw, and described triggering part moves up and down in described chamber in response to the gas pressure that enters described chamber;
Elastic compression devices is arranged on the top of described triggering part, and described elastic compression devices contacts with first contact surface of the contact jaw of described triggering part;
First induction pieces is electrically connected to the external control device, is placed on the described housing and in response to the gas pressure in the chamber that enters described housing optionally to contact with described elastic compression devices;
Second induction pieces, be electrically connected to the external control device, be placed in described housing below, and optionally contact with second contact surface of the contact jaw of described triggering part in response to the gas pressure in the chamber that enters described housing, described second contact surface is relative with described first contact surface.
2. gas pressure alarm device according to claim 1 is characterized in that, has normal pressure state and improper pressure state, wherein,
In described normal pressure state, the interior gas pressure of chamber that enters described housing is higher than default gas pressure marginal value, described triggering part moves up under the pressure effect of gas pressure that enters described chamber and described elastic compression devices, second contact surface of described triggering part and described second induction pieces disengage, and described elastic compression devices contacts with described first induction pieces;
In described improper pressure state, the interior gas pressure of chamber that enters described housing is lower than default gas pressure marginal value, described triggering part moves down under the pressure effect of gas pressure that enters described chamber and described elastic compression devices, second contact surface of described triggering part contacts with described second induction pieces, and described elastic compression devices and described first induction pieces disengage.
3. gas pressure alarm device according to claim 2 is characterized in that, described gas pressure alarm device (100) is a pressure valve, and it comprises:
Valve body (110) holds or installs each member of described pressure valve;
Spool (120), be set in the described valve body (110), the spool termination (121) of described spool is arranged in the interior valve pocket (111) of described valve body (110), the valve rod of described spool (122) extends from described spool termination (121) and passes the air inlet (112) of described valve body (110) bottom and extend into the extraneous gas pipeline, and described spool moves up and down in described valve pocket in response to the gas pressure that enters described valve pocket;
Elastic compression devices (130), comprise the compression spring (132) between press part (131) that is installed in described valve body top and the spool termination that is arranged on described press part and described spool, the lower end of described compression spring contacts with first contact surface (121a) of described spool termination and the upper end is close to described press part;
First induction pieces (140) is electrically connected to the external control device, be embedded in the press part (131) in described elastic compression devices and in response to the gas pressure in the valve pocket that enters described valve body optionally with the last end in contact of described compression spring;
Second induction pieces (150), be electrically connected to the external control device, be placed in described valve body below, and optionally contact with second contact surface (121b) of described spool in response to the gas pressure in the valve pocket that enters described valve body, described second contact surface is relative with described first contact surface.
4. gas pressure alarm device according to claim 3, it is characterized in that, in described normal pressure state, the interior gas pressure of valve pocket (111) that enters described valve body (110) is higher than default gas pressure marginal value, described spool (120) moves up under the pressure effect of gas pressure that enters described valve pocket and described compression spring (132), and second contact surface (121b) of described spool disengages with described second induction pieces (150);
In described improper pressure state, the interior gas pressure of valve pocket (111) that enters described valve body (110) is lower than default gas pressure marginal value, described spool (120) moves down under the pressure effect of gas pressure that enters described valve pocket and described compression spring, and second contact surface (121b) of described spool contacts with described second induction pieces (150).
5. gas pressure alarm device according to claim 3 is characterized in that, the mode that the press part of described elastic compression devices (131) is installed with screw thread is screwed in the top of described valve body.
6. gas pressure alarm device according to claim 5 is characterized in that, described press part (131) is an adjustment screw.
7. according to each described gas pressure alarm device in the claim 3,5 or 6, it is characterized in that described first induction pieces (140) is screwed in or is inserted in the described press part.
8. according to each described gas pressure alarm device in the claim 3,5 or 6, it is characterized in that, described compression spring is the helical spring that is set on the spool termination of described spool, perhaps is the sheet spring of roof pressure between described press part and described spool termination.
9. according to each described gas pressure alarm device in the claim 3,5 or 6, it is characterized in that described second induction pieces (150) is screwed in or is inserted in the sidewall of described valve body.
10. a respirator is characterized in that, is provided with in the air-channel system of described respirator according to each described gas pressure alarm device in the aforementioned claim.
11. an anesthetic machine is characterized in that, is provided with in the air-channel system of described anesthetic machine according to each described gas pressure alarm device among the aforementioned claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910217576 CN102114306B (en) | 2009-12-31 | 2009-12-31 | Gas pressure alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910217576 CN102114306B (en) | 2009-12-31 | 2009-12-31 | Gas pressure alarm device |
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| CN102114306A true CN102114306A (en) | 2011-07-06 |
| CN102114306B CN102114306B (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910217576 Active CN102114306B (en) | 2009-12-31 | 2009-12-31 | Gas pressure alarm device |
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| CN (1) | CN102114306B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901599A (en) * | 2012-06-25 | 2013-01-30 | 中国人民解放军海军医学研究所 | Gas cylinder residual pressure warning device |
| CN103353372A (en) * | 2013-07-05 | 2013-10-16 | 中国人民解放军海军医学研究所 | Adjustable breathing gas oxygen partial pressure segmentation alarm |
| CN105023397A (en) * | 2014-04-25 | 2015-11-04 | 深圳市科曼医疗设备有限公司 | Gas differential pressure alarm system and gas differential pressure alarm |
| CN108087465A (en) * | 2017-12-27 | 2018-05-29 | 将乐县和轩刹车片厂 | A kind of brake block of band contact buffering |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7074176B2 (en) * | 2003-05-15 | 2006-07-11 | Innovamedica S.A. De C.V. | Air-pressure powered driver for pneumatic ventricular assist devices |
| CN2643097Y (en) * | 2003-09-17 | 2004-09-22 | 张志平 | Filter pile-up valve |
| CN200993068Y (en) * | 2006-12-13 | 2007-12-19 | 赵旭 | Special high flow high-precision nozzle for automobile |
| CN201133856Y (en) * | 2007-12-28 | 2008-10-15 | 北京谊安医疗***股份有限公司 | Pressure detector |
| CN201297413Y (en) * | 2008-11-17 | 2009-08-26 | 北京谊安医疗***股份有限公司 | Air control valve and alarm system provided therewith |
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2009
- 2009-12-31 CN CN 200910217576 patent/CN102114306B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901599A (en) * | 2012-06-25 | 2013-01-30 | 中国人民解放军海军医学研究所 | Gas cylinder residual pressure warning device |
| CN102901599B (en) * | 2012-06-25 | 2014-12-03 | 中国人民解放军海军医学研究所 | Gas cylinder residual pressure warning device |
| CN103353372A (en) * | 2013-07-05 | 2013-10-16 | 中国人民解放军海军医学研究所 | Adjustable breathing gas oxygen partial pressure segmentation alarm |
| CN103353372B (en) * | 2013-07-05 | 2015-07-08 | 中国人民解放军海军医学研究所 | Adjustable breathing gas oxygen partial pressure segmentation alarm |
| CN105023397A (en) * | 2014-04-25 | 2015-11-04 | 深圳市科曼医疗设备有限公司 | Gas differential pressure alarm system and gas differential pressure alarm |
| CN105023397B (en) * | 2014-04-25 | 2017-10-10 | 深圳市科曼医疗设备有限公司 | Gas differential pressure warning system and its gas differential pressure alarm |
| CN108087465A (en) * | 2017-12-27 | 2018-05-29 | 将乐县和轩刹车片厂 | A kind of brake block of band contact buffering |
| CN108087465B (en) * | 2017-12-27 | 2020-03-24 | 将乐县和轩刹车片厂 | Brake pad with contact buffer |
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| CN102114306B (en) | 2013-05-08 |
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