CN109000003B - Emergency oxygen supply valve - Google Patents
Emergency oxygen supply valve Download PDFInfo
- Publication number
- CN109000003B CN109000003B CN201810827333.XA CN201810827333A CN109000003B CN 109000003 B CN109000003 B CN 109000003B CN 201810827333 A CN201810827333 A CN 201810827333A CN 109000003 B CN109000003 B CN 109000003B
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- diaphragm
- valve body
- valve
- firing pin
- air
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
- F16K13/04—Other constructional types of cut-off apparatus; Arrangements for cutting-off with a breakable closure member
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
Abstract
The invention relates to an emergency oxygen supply valve, which comprises a valve body provided with an air supply port communicated with an air bottle and an air outlet used for outputting oxygen, wherein an air supply path communicated with the air outlet is arranged in the valve body, a diaphragm used for cutting off the air path is arranged on the air supply path, a firing pin used for puncturing the diaphragm is movably assembled in the valve body, and a driving mechanism which is in transmission connection with the firing pin and used for driving the firing pin to move towards the direction of puncturing the diaphragm is also arranged on the valve body. Because with actuating mechanism direct mount on the valve body, during the use, need not arrange other structures in addition again, the air feed operation is comparatively convenient, can effectively improve the portability that uses this oxygen supply valve's oxygen supply apparatus.
Description
The application is a divisional application of the following applications, the application date of the original application: 2016, month 5, and day 31, original application No.: 2016103749425, title of original application: an emergency oxygen supply valve.
Technical Field
The invention relates to an emergency oxygen supply valve.
Background
In recent years, the importance degree of safety at home and abroad is higher and higher, and particularly in the field of lifesaving, an emergency oxygen supply valve which is convenient to operate, has good sealing performance, can be quickly opened and can be directly used for breathing is more important. Similar oxygen supply valves capable of realizing the functions are few in China, and the oxygen supply valves are complex in structure and relatively high in cost abroad.
The utility model discloses a chemical oxygen self-rescuer's gas storage formula starting drive is disclosed in chinese utility model patent specification with grant bulletin number CN2165877Y, constitute by high-pressure vessel and quick opening valve, high-pressure vessel adopts miniature oxygen cylinder, quick valve adopts the firing pin valve, firing pin valve adopts screw thread formula rigid connection with the oxygen cylinder, the firing pin valve is by the casing, the diaphragm, the lever, the firing pin, aerify the pipe and constitute, the diaphragm is equipped with to the gas outlet of casing, the diaphragm compresses tightly through the housing screw, housing screw and casing screw-thread fit, it has the through-hole to open in the middle of the housing screw, it is equipped with the firing pin to remove in this through-hole, the firing pin is driven by the lever, the lever passes through the hinge and is as the fulcrum, there is the stay. When the oxygen-releasing device is used, the pull rope is pulled to pull the lever, the lever pushes the firing pin to break the membrane, and oxygen is rapidly released through the gap between the firing pin and the compression screw through the air outlet. The lever required for quickly starting the valve to open is arranged independently of the valve body, the lever is pulled by the pull rope, and the striker is driven to move by the rotation of the lever to puncture the membrane. However, the independently arranged lever needs to be separately installed, is limited to a use place and is inconvenient to use.
Disclosure of Invention
The invention provides an emergency oxygen supply valve, which aims to solve the technical problem that in the prior art, a lever and a pull rope for driving a firing pin to move are arranged independently of a valve body, so that the lever and the pull rope need to be additionally and independently installed in use.
The technical scheme of the emergency oxygen supply valve provided by the invention is as follows: the emergency oxygen supply valve comprises a valve body, wherein the valve body is provided with an air supply port communicated with an air bottle and an air outlet used for outputting oxygen, an air supply path communicated with the air outlet is arranged in the valve body, a diaphragm used for separating the air path is arranged on the air supply path, a firing pin used for puncturing the diaphragm is movably assembled in the valve body, and a driving mechanism which is in transmission connection with the firing pin and used for driving the firing pin to move towards the direction of puncturing the diaphragm is further arranged on the valve body.
The valve body is internally provided with a striker spring which applies acting force for forcing the striker to move towards the direction far away from the diaphragm to the striker, the driving mechanism comprises a driving pin shaft, the driving pin shaft is assembled on the valve body in a linear motion or rotating mode, a conical jacking section which extends along the linear motion direction and is used for overcoming the acting force of the striker spring to push the striker to move towards the direction of puncturing the diaphragm when the driving pin shaft moves, and a cam structure which is used for overcoming the acting force of the striker spring to push the striker to move towards the direction of puncturing the diaphragm when the driving pin shaft rotates is arranged on the rotating driving pin shaft.
The driving pin shaft is assembled on the valve body in a reciprocating linear motion manner, and a pin shaft spring which applies force to the driving pin shaft to force the driving pin shaft to move towards the direction of the large-diameter end of the conical jacking section in the linear motion direction is arranged in the valve body.
The valve body is also provided with a diaphragm mounting hole communicated with the air supply air path and used for replacing the diaphragm, a spiral pressing piece for pressing and fixing the diaphragm in the air supply air path is detachably and hermetically assembled in the diaphragm mounting hole, and the spiral pressing piece and the firing pin are positioned on two sides of the diaphragm.
The diaphragm mounting hole be the ladder face outside shoulder hole, the spiral compress tightly a spiral assembly and be in the path section of shoulder hole, the removable sealed end cap that is equipped with in the path section of shoulder hole.
The valve body is internally provided with a diaphragm installation cavity, the diaphragm is pressed and fixed in the diaphragm installation cavity by the spiral pressing piece, the diaphragm divides the diaphragm installation cavity into a first cavity corresponding to the firing pin and a second cavity corresponding to the spiral pressing piece, the first cavity is communicated with the air supply opening, and the second cavity is communicated with the air outlet.
The gas supply gas circuit is provided with a pressure reduction structure which is used for reducing the gas pressure input through the gas supply port to a set value so as to meet the oxygen supply requirement.
The gas supply gas path is communicated with a safety valve at the downstream position of the pressure reducing structure, and the safety valve is arranged on the valve body.
The valve body is also provided with an inflation inlet which is communicated with the air supply inlet through an inflation air path, and the inflation inlet is correspondingly provided with an inflation check valve and a filtering structure.
And a pressure gauge is arranged on the inflation gas circuit.
The invention has the beneficial effects that: in the emergency oxygen supply valve provided by the invention, the air supply path of the valve body is provided with the diaphragm for cutting off the air path, the valve body is movably assembled with the firing pin to puncture the diaphragm, and the valve body is also provided with the driving mechanism which is in transmission connection with the firing pin to drive the firing pin to move towards the direction of puncturing the diaphragm so as to puncture the diaphragm to conduct the air supply path and supply oxygen. Because with actuating mechanism direct mount on the valve body, during the use, need not arrange other structures in addition again, the air feed operation is comparatively convenient, can effectively improve the portability that uses this oxygen supply valve's oxygen supply apparatus.
Furthermore, the driving mechanism comprises a driving pin shaft which is assembled on the valve body in a straight-moving mode, so that the driving pin shaft can move towards the direction of the small-diameter section of the conical jacking section in the straight-moving direction, and the jacking firing pin moves towards the direction of piercing the diaphragm.
Furthermore, the arrangement of the pin spring can ensure the stability of the direct-acting driving pin shaft and prevent misoperation.
Furthermore, the driving mechanism comprises a driving pin shaft which is assembled on the valve body in a rotating mode, so that the cam structure can be driven to rotate by rotating the driving pin shaft, the pushing firing pin can pierce the membrane, the driving pin shaft is small in action range, stable in rotation and convenient to operate, and design accuracy is guaranteed.
Further, the spiral pressing piece and the firing pin are located on two sides of the diaphragm, so that the diaphragm can be disassembled, assembled and replaced under the condition that the firing pin is not influenced, and the disassembly and the assembly are convenient.
Drawings
FIG. 1 is a schematic structural view of an embodiment of an emergency oxygen supply valve provided by the present invention;
FIG. 2 is a left side view of the oxygen supply valve shown in FIG. 1;
FIG. 3 is a top view of the oxygen supply valve shown in FIG. 1;
FIG. 4 is a cross-sectional view A-A of FIG. 1;
FIG. 5 is a cross-sectional view B-B of FIG. 1;
FIG. 6 is a cross-sectional view C-C of FIG. 2;
fig. 7 is a cross-sectional view taken along line D-D in fig. 2.
Detailed Description
As shown in fig. 1 to 7, an embodiment of an emergency oxygen supply valve includes a valve body 1, the valve body 1 is provided with an air supply port 2 for communicating with an oxygen cylinder, an air outlet 3 for outputting oxygen, and an inflation port for communicating with an oxygen source, in practice, an air supply connector is provided at the air supply port 2, and a corresponding inflation connector is provided at the inflation port. An air supply path 100 for communicating the air supply port 2 with the air outlet 3 and an inflation path 200 for communicating the inflation port with the air supply port 2 are provided on the valve body 1.
In order to ensure normal use, the gas supply circuit 100 is provided with a pressure reducing structure 8 for reducing the gas pressure input through the gas supply port to a set value so as to meet the oxygen supply requirement, the pressure reducing structure 8 comprises a pressure reducing valve cavity arranged on the valve body 1, and the pressure reducing valve cavity is provided with a valve seat, a valve core, a sealing gasket, a return spring, a piston, a main spring and other structures.
In order to ensure the safety of the gas circuit, a safety valve 9 is communicated with the downstream position of the pressure reducing structure 8 on the gas supply gas circuit 100, the safety valve 9 is installed on the valve body 1, and the safety valve 9 comprises a safety valve spool, a safety valve spring, a pressure regulating screw and a corresponding locking nut.
Still be equipped with the diaphragm that is used for cutting off the air feed gas circuit in air feed gas circuit 100, this diaphragm is arranged in the diaphragm installation cavity that 1 inside of valve body was equipped with, be equipped with the diaphragm mounting hole 11 that is used for installing the diaphragm in the diaphragm installation cavity with 100 intercommunications of air feed gas circuit on the valve body 1, the one end of keeping away from the diaphragm of this diaphragm mounting hole 11 extends to the valve body surface, diaphragm mounting hole 11 is the ladder hole that faces outwards, the detachable sealed assembly of path section in the inboard of ladder hole has the spiral compression spare 13 of fixing the diaphragm pressure equipment in the air feed gas circuit, the detachable sealed assembly of path section in the ladder hole has end cap 12, set up the sealing washer in order to realize sealed assembly between the inner hole wall of end cap 12 and ladder hole.
A striker 14 for piercing the membrane is movably mounted in the valve body 1 on the side of the membrane 10 facing away from the screw pressing member 13, the striker 14 is movably mounted in a guide sleeve in a guide manner, a striker O-ring is provided between the striker 14 and the valve body 1, and the striker 14 is further provided with a striker spring 15 for applying a force to the striker for forcing the striker to move away from the membrane. The spiral pressing piece 13 and the striker 14 are located on both sides of the diaphragm.
In practice, the diaphragm 10 is pressed and fixed in the diaphragm installation cavity by the screw pressing piece 13, the diaphragm 10 divides the diaphragm installation cavity into a first cavity 101 corresponding to the striker 14 and a second cavity 102 corresponding to the screw pressing piece 13, the first cavity 101 is communicated with the air outlet 3 on the valve body 1, and the second cavity 102 is communicated with the air inlet 2 on the valve body 1. Because the seal at one side of the spiral pressing piece 13 belongs to static seal, the cost required when the same seal strength is achieved is lower, and thus the requirement of gas pressure in the gas supply path can be better met.
In this embodiment, the valve body 1 is provided with a driving mechanism which is in transmission connection with the striker 14 and is used for driving the striker 14 to move towards the membrane puncturing direction, the driving mechanism comprises a driving pin 16 which is arranged perpendicular to the moving direction of the striker 14, the driving pin 16 is assembled on the valve body 1 in a reciprocating and direct-acting manner, the direct-acting driving pin 16 is provided with a conical jacking section 161 which extends along the direct-acting direction and is used for pushing the striker 14 to move towards the membrane puncturing direction 10 against the action force of a striker spring 15 when the driving pin moves, the conical jacking section 161 is provided with a large-diameter end and a small-diameter end, a pin spring 17 which applies force to the driving pin shaft to force the driving pin shaft 16 to move towards the direction of the large-diameter end of the conical jacking section in the translation direction is sleeved outside the driving pin shaft 16, and the pin spring 17 is a pressure spring with one end jacking against the valve body 1 and the other end jacking against the driving pin shaft 16.
In addition, the connecting shaft 18 is fixedly connected to the driving pin 16, when in use, the driving pin 16 can be forced to pull the connecting shaft 18 towards the direction of the small diameter end of the conical jacking section along the linear motion direction to force the driving pin to move, the striker 14 is forced to move towards the diaphragm 10 to puncture the diaphragm by overcoming the acting force of the striker spring 15, and the air supply path is conducted.
In order to prevent the misoperation caused by the fact that the drive pin shaft is excessively moved in the upward direction of the linear motion direction, namely towards the direction of the large-diameter end of the conical jacking section, a limiting sleeve 19 used for limiting the drive pin shaft to excessively move in the upward direction is arranged in the valve body 1, the limiting sleeve 19 is elastically jacked and assembled in the valve body through a limiting spring 20, and a downward stopping surface used for being matched with the connecting shaft 18 in a pushing and stopping mode is arranged on the limiting sleeve 19.
In addition, an inflation inlet on the valve body 1 is communicated with the air supply inlet 2 through an inflation air path 200, an inflation connector 19 is correspondingly arranged at the inflation inlet, an inflation one-way valve is further arranged at the inflation inlet, and a pressure gauge 5 for detecting the oxygen pressure in the inflation air path is further arranged on the valve body.
The oxygen supply valve provided by the embodiment has two working modes:
(1) oxygen output mode:
the high-pressure oxygen in the oxygen cylinder is introduced into the air supply air path 100 of the valve body through the air supply port 2, after the pressure is reduced to 0.2-0.6 MPa through the pressure reduction structure 8, the high-pressure oxygen is introduced into the second cavity 102, facing the spiral pressing piece, beside the diaphragm 10, the connecting shaft 18 is pulled downwards, at this time, the driving pin 16 moves directly towards the small-diameter end of the conical pressing section, as shown in fig. 6, the driving pin 16 moves downwards, the conical pressing section 161 on the driving pin 16 overcomes the acting force of the striker spring 17 to push the striker 14 to move towards the diaphragm 10, the diaphragm is punctured, the air supply air path 100 is conducted, and the reduced-pressure low-pressure oxygen of 0.2-0.6 MPa in the second cavity 102 beside the diaphragm flows into the first cavity 101 on the left side of the diaphragm through the through. The low-pressure oxygen in the first chamber 101 flows into the gas outlet 3 through the inclined hole as a part of the gas supply path, so that continuous low-pressure oxygen supply is realized. After the membrane 10 is punctured for use, the plug 12 and the spiral pressing piece 13 can be detached to replace the membrane 10 again, so that the membrane 10 can be recycled.
(2) Oxygen filling mode:
as shown in fig. 7, the outer nut and the plug are removed, the oxygen source is connected to the inflation connector 19 at the inflation port, the oxygen flows into the inflation gas path 200 through the inflation check valve, and finally the oxygen bottle is introduced through the gas supply port, so as to realize the oxygen charging function. As shown in fig. 7, the pressure of the oxygen input from the oxygen supply valve can be observed by the pressure gauge 5, and when the pressure of the input oxygen is lower than the working requirement, the oxygen cylinder can be charged with high-pressure oxygen from the charging connector.
In the above embodiment, the driving pin is a linear motion, in other embodiments, the driving pin may be a rotational motion, and the rotational driving pin has a cam structure for pushing the striker to move toward the membrane puncturing direction against the force of the striker spring when the driving pin rotates.
In the above embodiments, the driving mechanism includes the driving pin, in other embodiments, the driving mechanism may also adopt a lever in the prior art, and it should be noted that the lever needs to be directly and hingedly mounted on the valve body. In practice, the movement of the striker to pierce the membrane may also be driven by a push-pull rod fixedly connected to the striker.
In the above embodiment, the diaphragm is press-fitted and fixed by using the spiral pressing piece, and in other embodiments, the diaphragm can be press-fitted and fixed in the diaphragm installation cavity by directly using the plug.
Claims (6)
1. The utility model provides an emergent oxygen valve that supplies, is equipped with the air feed gas circuit with the gas outlet intercommunication including having the valve body that is used for the air supply mouth with the gas cylinder intercommunication and is used for exporting the gas outlet of oxygen in the valve body, is equipped with the diaphragm that is used for cutting off the gas circuit on the air feed gas circuit, and the removal is equipped with the firing pin that is used for puncturing the diaphragm in the valve body, its characterized in that: the valve body is also provided with a driving mechanism which is in transmission connection with the firing pin and is used for driving the firing pin to move towards the direction of puncturing the diaphragm, the valve body is also provided with a diaphragm mounting hole which is communicated with the air supply path and is used for replacing the diaphragm, a spiral pressing piece which is used for pressing and fixing the diaphragm in the air supply path is detachably and hermetically assembled in the diaphragm mounting hole, the spiral pressing piece and the firing pin are positioned at two sides of the diaphragm, a diaphragm mounting cavity is arranged in the valve body, the diaphragm is pressed and fixed in the diaphragm mounting cavity by the spiral pressing piece, the diaphragm divides the diaphragm mounting cavity into a first cavity corresponding to the firing pin and a second cavity corresponding to the spiral pressing piece, the first cavity is communicated with the air outlet, the second cavity is communicated with the air supply port, and a firing pin spring which applies acting force for forcing the firing pin to move towards the direction away from the diaphragm is sleeved outside, the driving mechanism comprises a driving pin shaft which is arranged perpendicular to the moving direction of the firing pin, the driving pin shaft is assembled on the valve body in a reciprocating and direct-acting mode, and a conical jacking section which extends along the direct-acting direction and is used for overcoming the acting force of a firing pin spring to push the firing pin to move towards the direction of puncturing the diaphragm when the driving pin shaft moves is arranged on the direct-acting driving pin shaft.
2. The emergency oxygen supply valve of claim 1, wherein: the diaphragm mounting hole be the ladder face outside shoulder hole, the spiral compress tightly a spiral assembly and be in the path section of shoulder hole, the removable sealed end cap that is equipped with in the path section of shoulder hole.
3. The emergency oxygen supply valve according to claim 1 or 2, wherein: the gas supply gas circuit is provided with a pressure reduction structure which is used for reducing the gas pressure input through the gas supply port to a set value so as to meet the oxygen supply requirement.
4. The emergency oxygen supply valve of claim 3, wherein: the gas supply gas path is communicated with a safety valve at the downstream position of the pressure reducing structure, and the safety valve is arranged on the valve body.
5. The emergency oxygen supply valve according to claim 1 or 2, wherein: the valve body is also provided with an inflation inlet which is communicated with the air supply inlet through an inflation air path, and the inflation inlet is correspondingly provided with an inflation check valve and a filtering structure.
6. The emergency oxygen supply valve of claim 5, wherein: and a pressure gauge is arranged on the inflation gas circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810827333.XA CN109000003B (en) | 2016-05-31 | 2016-05-31 | Emergency oxygen supply valve |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610374942.5A CN105972262B (en) | 2016-05-31 | 2016-05-31 | A kind of emergency oxygen supply valve |
| CN201810827333.XA CN109000003B (en) | 2016-05-31 | 2016-05-31 | Emergency oxygen supply valve |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610374942.5A Division CN105972262B (en) | 2016-05-31 | 2016-05-31 | A kind of emergency oxygen supply valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109000003A CN109000003A (en) | 2018-12-14 |
| CN109000003B true CN109000003B (en) | 2020-04-03 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810827333.XA Active CN109000003B (en) | 2016-05-31 | 2016-05-31 | Emergency oxygen supply valve |
| CN201610374942.5A Active CN105972262B (en) | 2016-05-31 | 2016-05-31 | A kind of emergency oxygen supply valve |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610374942.5A Active CN105972262B (en) | 2016-05-31 | 2016-05-31 | A kind of emergency oxygen supply valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109000003B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3526339A (en) * | 1967-12-12 | 1970-09-01 | Bernhardt Apparatebau Gmbh Co | Device for inflating floating bodies of life-saving equipment |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2051335B (en) * | 1979-05-30 | 1983-01-26 | Legris | Remote-controlled valves |
| CN86210261U (en) * | 1986-12-14 | 1988-08-24 | 颜之亨 | Rapid inflating device |
| CN2077305U (en) * | 1990-11-13 | 1991-05-22 | 国防科工委航天医学工程研究所科技开发部 | Medical regulator of oxygen therapy |
| CN2751211Y (en) * | 2004-09-20 | 2006-01-11 | 纪成尧 | Oxygen supply valve for medical purposes |
| CN101858484B (en) * | 2009-09-27 | 2012-06-20 | 凯迈（洛阳）气源有限公司 | High-pressure gas bottle and inflating method thereof |
| CN201914406U (en) * | 2010-12-31 | 2011-08-03 | 航宇救生装备有限公司 | Automatic entry inflating device of multi-passenger lifeboat |
| WO2014018332A1 (en) * | 2012-07-23 | 2014-01-30 | Carleton Technologies, Inc. | Inflator assembly adapted for manual or automatic inflation |
| CN202884464U (en) * | 2012-11-16 | 2013-04-17 | 张俊福 | Air inflation bottle for air-pocket backpack |
| CN203047517U (en) * | 2012-11-27 | 2013-07-10 | 凯迈（洛阳）气源有限公司 | Life-saving equipment and inflation valve thereof |
| CN102943961B (en) * | 2012-11-27 | 2015-04-29 | 凯迈（洛阳）气源有限公司 | Diaphragm type gas cylinder and cylinder opening mechanism thereof |
| CN104295891B (en) * | 2014-10-11 | 2016-04-27 | 凯迈（洛阳）气源有限公司 | Gas cylinder inflation, air connector and use the gas cylinder of this device |
-
2016
- 2016-05-31 CN CN201810827333.XA patent/CN109000003B/en active Active
- 2016-05-31 CN CN201610374942.5A patent/CN105972262B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3526339A (en) * | 1967-12-12 | 1970-09-01 | Bernhardt Apparatebau Gmbh Co | Device for inflating floating bodies of life-saving equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105972262B (en) | 2018-08-03 |
| CN109000003A (en) | 2018-12-14 |
| CN105972262A (en) | 2016-09-28 |
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