CN201059380Y - Gas relief valve - Google Patents
Gas relief valve Download PDFInfo
- Publication number
- CN201059380Y CN201059380Y CNU2007200530164U CN200720053016U CN201059380Y CN 201059380 Y CN201059380 Y CN 201059380Y CN U2007200530164 U CNU2007200530164 U CN U2007200530164U CN 200720053016 U CN200720053016 U CN 200720053016U CN 201059380 Y CN201059380 Y CN 201059380Y
- Authority
- CN
- China
- Prior art keywords
- valve
- gas
- needle
- valve body
- entered passageway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
A fuel gas reducing valve comprises a reducing valve body consisting of an upper shell and a lower shell, wherein, the valve body is provided with an air inlet and an air outlet; a valve cavity of the valve body is also provided with a pressure regulation appliance. The utility model is characterized in that the air inlet is provided with a one-way valve which can control the air uniflow of the reducing valve; the one-way valve comprises a one-way valve body which is provided with an intake passage communicated with the valve cavity; the intake passage is provided inside with steps and a valve needle which can slide inside the intake passage; the valve needle is provided with sealing steps matched with the steps inside the intake passage to close the intake passage; the tail end of the valve needle is provided with an offsetting spring which drives the valve needle to restore. The air inlet of the valve body of the utility model is provided with the one-way valve which can control the air uniflow of the reducing valve, thereby fuel gas does not backflow to cause leakage, and moreover, the utility model has simple structure and low cost.
Description
[technical field]
The utility model relates to a kind of combustion gas reduction valve, specifically relates to a kind of combustion gas one way pressure-reducing valve.
[background technique]
Existing combustion gas reduction valve, the device of control combustion gas reverse flow is not set on valve body, two reduction valve are installed on the combustion gas tool simultaneously, and during a connection combustion gas, combustion gas is flowed out from suction port after can entering another reducing valve body by the tracheae that is connected again, just when the high pressure admission end of reduction valve has one not connect source of the gas, combustion gas can flow to suction port from the air outlet of reduction valve, and, cause gas leakage from the suction port outflow, abnormally dangerous.
[summary of the invention]
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of combustion gas can not flow backwards and has formed leakage, and is safe in utilization, simple in structure, the combustion gas reduction valve that cost is low.
The purpose of this utility model is achieved in that
A kind of combustion gas reduction valve, comprise reducing valve body, reducing valve body is made up of upper shell and lower shell body, on valve body, be provided with suction port, air outlet, also be provided with regulator in the valve pocket of valve body, it is characterized in that described suction port is provided with the mobile one-way valve of gas unidirectional of may command reduction valve, this one-way valve comprises check valve body, described check valve body is provided with the gas-entered passageway that communicates with valve pocket, the needle that is provided with step in the gas-entered passageway and can slides in gas-entered passageway; Being provided with on needle to match with the step in the gas-entered passageway closes the sealed step of gas-entered passageway, and the tail end of needle is provided with and can drives the Returnning spring that needle resets.
Aforesaid a kind of combustion gas reduction valve is characterized in that described step is divided into prepass and back passage with gas-entered passageway, and the internal diameter of prepass is littler than the internal diameter of back passage, and sealed step is stuck in the passage of back on needle.
Aforesaid a kind of combustion gas reduction valve is characterized in that the front end of described needle stretches out check valve body.
Aforesaid a kind of combustion gas reduction valve, it is characterized in that described regulator comprises the diaphragm that is arranged between upper shell and the lower shell body, be fixed with mandrel by a pallet on the diaphragm, be provided with pressure adjusting spring between pallet and the upper shell, be fixed with valve rod by a bearing pin in the described lower shell body, one end of valve rod is connected with mandrel, and the other end can contact with the valve pocket inlet of suction port.
The utility model is provided with the mobile one-way valve of gas unidirectional of may command reduction valve at valve body and suction port; When reducing valve body was installed on gas cylinder or the gas joint, the needle of one-way valve moved in valve pocket, thereby makes needle open gas-entered passageway under the promotion of gas cylinder or gas kitchen pipe joint; Behind the joint of taking gas cylinder or fuel tube apart, needle resets rapidly under the effect of Returnning spring, closes gas-entered passageway, combustion gas can not flow backwards form leakage.And simple in structure, cost is low.
[description of drawings]
Fig. 1 is that needle of the present utility model is being closed structural representation under the gas-entered passageway state;
Fig. 2 is that needle of the present utility model is being opened structural representation under the gas-entered passageway state;
[embodiment]
A kind of combustion gas reduction valve, comprise reducing valve body 1, reducing valve body 1 is made up of upper shell 2 and lower shell body 3, on valve body 1, be provided with suction port 4, air outlet 5, in the valve pocket of valve body 1, also be provided with regulator 6, described regulator 6 comprises the diaphragm 7 that is arranged between upper shell 2 and the lower shell body 3, be fixed with mandrel 9 by a pallet 8 on the diaphragm 7, be provided with pressure adjusting spring 10 between pallet 8 and the upper shell 2, be fixed with valve rod 12 by a bearing pin 11 in the described lower shell body 3, an end of valve rod 12 is connected with mandrel 9, and the other end can contact with the valve pocket inlet 14 of suction port 4, when pressure in the valve pocket is excessive, diaphragm 7 drives mandrel 9 and moves under the promotion of gaseous-pressure, mandrel 9 drives valve rod 12 and rotates, and makes valve rod 12 the other ends slowly near valve pocket inlet 14, regulate suction port and enter the size of combustion gas, thereby realize voltage regulation function.
Described suction port 4 is provided with the mobile one-way valve 15 of gas unidirectional of may command reduction valve, this one-way valve 15 comprises check valve body 16, described check valve body 16 is provided with the gas-entered passageway 17 that communicates with valve pocket, the needle 19 that is provided with step 18 in the gas-entered passageway 17 and can slides in gas-entered passageway; Leave the slit between needle 19 and the gas-entered passageway 17, gas can enter valve body from the slit, described step 18 is divided into prepass 20 and back passage 21 with gas-entered passageway 17, the internal diameter of prepass 20 is littler than the internal diameter of back passage 21, on needle 19, be provided with sealed step 22, sealed step 22 is stuck in the passage 21 of back, when needle 19 drive sealed step 22 move a segment distance outside valve body after, sealed step 22 can cooperate with step 18 closes gas-entered passageway 17, when needle 19 drive sealed step 22 move a segment distance in valve body after, sealed step 22 is left step 18, thereby opens gas-entered passageway 17, and the tail end of needle 19 is provided with and can drives the Returnning spring 23 that needle 19 resets.When valve body 1 is installed on gas cylinder or the gas kitchen pipe joint, needle 19 moves in valve body under the promotion of gas cylinder or gas kitchen pipe joint, sealed step 22 is left step 18, thereby open gas-entered passageway 17, making combustion gas enter behind the valve pocket from the air outlet 5 flows out, but behind the joint of taking gas cylinder or fuel tube apart, needle 19 no longer is subjected to the thrust of joint, and under the effect of Returnning spring 23, reset rapidly, thereby sealed step 22 be may be stuck on the step 18, close gas-entered passageway 17, combustion gas can not flow backwards form leakage.
The front end of described needle 19 stretches out check valve body 16, makes needle 19 can be subjected to the promotion of gas cylinder or gas joint, and moves in reducing valve body 1.
Claims (4)
1. combustion gas reduction valve, comprise reducing valve body (1), reducing valve body (1) is made up of upper shell (2) and lower shell body (3), on valve body (1), be provided with suction port (4), air outlet (5), in the valve pocket of valve body (1), also be provided with regulator (6), it is characterized in that described suction port (4) is provided with the mobile one-way valve (15) of gas unidirectional of may command reduction valve, this one-way valve (15) comprises check valve body (16), described check valve body (16) is provided with the gas-entered passageway (17) that communicates with valve pocket, the needle (19) that is provided with step (18) in the gas-entered passageway (17) and can slides in gas-entered passageway; Be provided with the sealed step (22) that can match and close gas-entered passageway (17) with the step (18) in the gas-entered passageway (17) on needle (19), the tail end of needle (19) is provided with and can drives the Returnning spring (23) that needle (19) resets.
2. a kind of combustion gas reduction valve according to claim 1, it is characterized in that described step (18) is divided into prepass (20) and back passage (21) with gas-entered passageway (17), the internal diameter of prepass (20) is littler than the internal diameter of back passage (21), goes up sealed step (22) at needle (19) and is stuck in the back passage (21).
3. a kind of combustion gas reduction valve according to claim 1 and 2 is characterized in that the front end of described needle (19) stretches out check valve body (16).
4. a kind of combustion gas reduction valve according to claim 1 and 2, it is characterized in that described regulator (6) comprises the diaphragm (7) that is arranged between upper shell (2) and the lower shell body (3), diaphragm (7) is gone up and is fixed with mandrel (9) by a pallet (8), be provided with pressure adjusting spring (10) between pallet (8) and the upper shell (2), be fixed with valve rod (12) by a bearing pin (11) in the described lower shell body (3), one end of valve rod (12) is connected with mandrel (9), and the other end can contact with the valve pocket inlet (14) of suction port (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200530164U CN201059380Y (en) | 2007-06-14 | 2007-06-14 | Gas relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200530164U CN201059380Y (en) | 2007-06-14 | 2007-06-14 | Gas relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201059380Y true CN201059380Y (en) | 2008-05-14 |
Family
ID=39407851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200530164U Expired - Lifetime CN201059380Y (en) | 2007-06-14 | 2007-06-14 | Gas relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201059380Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527830A (en) * | 2013-10-31 | 2014-01-22 | 夏品清 | Butagas atomization pressure-relief device |
| CN105927764A (en) * | 2016-06-12 | 2016-09-07 | 广州市精鼎电器科技有限公司 | Non-return valve |
| CN106499869A (en) * | 2016-12-23 | 2017-03-15 | 盐城工学院 | A kind of pressure regulator and fuel gas transmission equipment |
| CN113983018A (en) * | 2021-10-28 | 2022-01-28 | 浙江华巨液压科技有限公司 | One-way pressure reducing valve |
-
2007
- 2007-06-14 CN CNU2007200530164U patent/CN201059380Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527830A (en) * | 2013-10-31 | 2014-01-22 | 夏品清 | Butagas atomization pressure-relief device |
| CN103527830B (en) * | 2013-10-31 | 2015-06-03 | 夏品清 | Butagas atomization pressure-relief device |
| CN105927764A (en) * | 2016-06-12 | 2016-09-07 | 广州市精鼎电器科技有限公司 | Non-return valve |
| CN105927764B (en) * | 2016-06-12 | 2018-02-13 | 广州市精鼎电器科技有限公司 | Check-valves |
| CN106499869A (en) * | 2016-12-23 | 2017-03-15 | 盐城工学院 | A kind of pressure regulator and fuel gas transmission equipment |
| CN113983018A (en) * | 2021-10-28 | 2022-01-28 | 浙江华巨液压科技有限公司 | One-way pressure reducing valve |
| CN113983018B (en) * | 2021-10-28 | 2023-08-18 | 浙江三尚智迪科技有限公司 | One-way pressure reducing valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201059380Y (en) | Gas relief valve | |
| CN202326110U (en) | Combined admission valve of air compressor | |
| CN111609197B (en) | Combined type exhaust valve | |
| CN204345034U (en) | A kind of compressed natural gas guide electromagnetic valve | |
| CN103899805B (en) | Micro-power switch valve with check function | |
| CN203571146U (en) | Gas pressure reducer | |
| CN105962790B (en) | A kind of air exhaust valve for bubble water machine | |
| CN206513903U (en) | A kind of high-pressure fluid check valve | |
| CN109868865A (en) | Compensated with air device | |
| CN110067777B (en) | Flow-increasing water pump | |
| CN203742834U (en) | Pressure reducer | |
| CN203892005U (en) | Turbo charging mechanism with two-position two-way pulse width adjusting valve | |
| CN203395299U (en) | Column-type adjustable check valve | |
| CN205743899U (en) | A kind of air drill and water flushing mechanism thereof | |
| CN205559898U (en) | Controlling means is closed in delaying of check valve | |
| CN206530470U (en) | Pneumatic high flow pump | |
| CN201714634U (en) | Air intake valve structure of air compressor | |
| CN205559907U (en) | Automatic controller that reduces pressure of unsteady flow volume | |
| CN205172851U (en) | Pneumatic booster pump | |
| CN205172923U (en) | Pneumatic supercharging device | |
| CN205956521U (en) | From booster -type valves | |
| CN205780948U (en) | Residual water structure is got rid of in linkage | |
| CN109519560B (en) | Self-sealing type inlet gate valve for pump | |
| CN204239850U (en) | The multi-functional micro-pump control valve that blocks water of a kind of squelch type | |
| CN201396446Y (en) | Cone headed valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080514 |