CN213361224U - Gas pressure reducing valve for welding gun - Google Patents
Gas pressure reducing valve for welding gun Download PDFInfo
- Publication number
- CN213361224U CN213361224U CN202021830299.0U CN202021830299U CN213361224U CN 213361224 U CN213361224 U CN 213361224U CN 202021830299 U CN202021830299 U CN 202021830299U CN 213361224 U CN213361224 U CN 213361224U
- Authority
- CN
- China
- Prior art keywords
- valve
- gas
- baffle
- valve body
- pressure reducing
- 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.)
- Active
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The application discloses a gas pressure reducing valve for a welding gun, which comprises a valve body and a valve cover, case and elastic component, screw-thread fit between the one end of valve body and the one end of valve gap, be formed with sealed cavity between valve body and the valve gap, the shaping has sliding sleeve on the chamber wall of sealed cavity, the case includes slide bar and baffle, the sectional area of baffle is greater than the sectional area of slide bar, the valve body inlet port, the inlet port corresponds each other with the terminal surface of slide bar, form the air inlet on the lateral wall of slide bar, the tip of baffle is formed with the gas outlet, be formed with the venthole on the valve gap, the venthole sets up with the gas outlet relatively, the elastic component cover is established in sliding sleeve's the outside and with the tip looks butt of baffle, first seal groove has been seted up to the week side of slide bar, first seal groove is located between air inlet and the baffle, install first sealing washer in the sealed annular of. The application has good sealing performance and decompression effect, and is suitable for decompression of various gas tanks.
Description
Technical Field
The application relates to the field of pressure reducing valves, in particular to a gas pressure reducing valve for a welding gun.
Background
Welder need connect the combustion gas use when using, and combustion gas stores in the gas pitcher, and combustion gas enters into welder from the gas pitcher and carries out the in-process that burns, need reduce pressure, and the decompression valve is commonly used in the decompression, and the inventor finds that, in the in-service use process, most decompression valves all have the not good problem of gas tightness.
SUMMERY OF THE UTILITY MODEL
In order to improve the airtightness of the pressure reducing valve, the application provides a gas pressure reducing valve for a welding gun.
The application provides a gas relief valve that welder used adopts following technical scheme:
a gas pressure reducing valve for a welding gun comprises a valve body, a valve cover, a valve core and an elastic piece, wherein one end of the valve body is in threaded fit with one end of the valve cover, a sealing cavity is formed between the valve body and the valve cover, a sliding sleeve is formed on the wall, close to the valve body, of the sealing cavity, the valve core comprises a sliding rod which is slidably mounted in the sliding sleeve and a baffle which is integrally formed with the sliding rod, the sectional area of the baffle is larger than that of the sliding rod, an air inlet hole which is communicated with the inside of the sliding sleeve is formed in the valve body, the air inlet hole corresponds to the end face of the sliding rod, an air inlet is formed in the side wall of the sliding rod, an air outlet which is communicated with the air inlet is formed in the end part of the baffle, an air outlet hole is formed in the valve cover and is arranged opposite to the air outlet, and the elastic piece is, the air outlet pressure adjusting valve is characterized in that an adjusting structure used for adjusting the air outlet pressure of the valve body is arranged on the valve body, a first sealing groove is formed in the peripheral side of the sliding rod and is located between the air inlet and the baffle, a first sealing ring is installed in the first sealing groove, and an air inlet gap is reserved between the outer wall of the sliding rod and the inner wall of the sliding sleeve.
By adopting the technical scheme, when the gas pressure reducing valve is used, gas in the gas tank enters the sliding sleeve from the gas inlet and acts on the end part of the sliding rod to push the sliding rod to move, in the pushing process, the gas enters the valve core from the gas inlet and is discharged from the gas outlet, the discharged gas finally enters the welding gun from the gas outlet, in the gas discharging process from the gas outlet, the gas acts on the end surface of the baffle, and because the sectional area of the baffle is larger than that of the sliding rod, the acting force of the gas acting on the end part of the baffle is smaller than the force of the gas acting on the end part of the sliding rod, so that the pressure reducing purpose is achieved. The first sealing groove is formed in the peripheral side of the sliding rod, the first sealing ring is installed in the first sealing groove, the sliding of the sliding rod in the sliding groove is sealed by the first sealing ring, the sealing effect in the gas transmission process is improved, and the gas cylinder decompression sealing device is suitable for decompression of various gas cylinders.
Preferably, an internal thread groove matched with the mouth of the air tank is formed at one end, far away from the valve cover, of the valve body, an air inlet rod used for being abutted against an air tap part of the air tank is formed at the bottom of the internal thread groove, and the air inlet hole is formed in the peripheral wall of the air inlet rod.
Through adopting above-mentioned technical scheme, the internal thread recess is used for carrying out screw-thread fit with the gas pitcher bottleneck and screws up, and the pole of admitting air and gas pitcher air cock part butt to utilize the inlet port to fill gas in towards the valve body.
Preferably, a sealing gasket is arranged at the bottom of the internal thread groove.
By adopting the technical scheme, the sealing gasket is arranged at the bottom of the internal thread groove, the sealing gasket plays a sealing role in the connection between the internal thread groove and the bottle mouth of the gas tank, and the gas tightness of the connection between the internal thread groove and the bottle mouth of the gas tank is improved.
Preferably, the valve body is kept away from to the valve gap one end shaping has external screw thread gas outlet rod, the tip at external screw thread gas outlet rod is seted up to the venthole, screw-thread fit has the nut on the external screw thread gas outlet rod.
Through adopting above-mentioned technical scheme, the cooperation nut of external screw thread air outlet rod uses, makes it be connected with the trachea, is convenient for convey gas.
Preferably, a second sealing groove is formed in the peripheral side of the baffle, and a second sealing ring is installed in the second sealing groove.
Through adopting above-mentioned technical scheme, set up the second seal groove in the week side of baffle, installation second sealing washer in the second seal groove, the second sealing washer slides in the spout to the baffle and plays sealed effect, has improved the sealed effect of gas in the gas outlet position.
Preferably, one end of the sliding rod, which is far away from the baffle, is provided with a filling groove, and the filling groove is filled with a polytetrafluoroethylene layer.
Through adopting above-mentioned technical scheme, polytetrafluoroethylene has good sealed effect, and simultaneously, the polytetrafluoroethylene layer still has certain cushioning effect, makes gaseous effort effect more even.
Preferably, the elastic member is selected from springs.
Through adopting above-mentioned technical scheme, select the spring with the elastic component, the spring has stable elasticity performance to and longer life.
In summary, the present application includes at least one of the following beneficial technical effects:
the first sealing groove is formed in the peripheral side of the sliding rod, and the first sealing ring is arranged in the first sealing groove, so that the first sealing ring has a sealing effect on the sliding of the sliding rod in the sliding groove, the sealing effect in the gas transmission process is improved, and the gas tank decompression sealing device is suitable for decompression of various gas tanks;
the sealing gasket is arranged at the bottom of the internal thread groove, and plays a role in sealing the connection between the internal thread groove and the bottle mouth of the gas tank, so that the air tightness of the connection between the internal thread groove and the bottle mouth of the gas tank is improved;
the second sealing groove is formed in the peripheral side of the baffle, the second sealing ring is installed in the second sealing groove, the second sealing ring plays a sealing role in sliding of the baffle in the sliding groove, and the sealing effect of gas at the position of the gas outlet is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of a gas pressure reducing valve according to an embodiment of the present application.
Fig. 2 is a schematic cross-sectional view illustrating an internal structure of a gas pressure reducing valve according to an embodiment of the present invention.
Fig. 3 is a partially enlarged schematic view illustrating a sleeve structure according to an embodiment of the present application.
Description of reference numerals: 1. a valve body; 2. a valve cover; 3. a valve core; 31. a slide bar; 32. a baffle plate; 4. an elastic member; 5. sealing the chamber; 6. a sliding sleeve; 7. an air inlet; 8. an air inlet; 9. an air outlet; 10. a first seal groove; 11. a first seal ring; 12. a second seal groove; 13. a second seal ring; 14. filling the groove; 15. a polytetrafluoroethylene layer; 16. an internal thread groove; 17. an air intake rod; 18. an external thread gas outlet rod; 19. a nut; 20. an adjustment structure; 21. fixing a nut; 22. rotating the screw; 23. a sliding disk; 24. sliding cavity, 25, gas outlet.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a gas reducing valve for a welding gun. Referring to fig. 1 and 2, the gas pressure reducing valve for the welding gun comprises a valve body 1, a valve cover 2, a valve core 3 and an elastic part 4, wherein one end of the valve body 1 is in threaded fit with one end of the valve cover 2, a sealing chamber 5 is formed between the valve body 1 and the valve cover 2, and a sliding sleeve 6 is integrally formed on the wall, close to the valve body 1, of the sealing chamber 5.
Referring to fig. 2 and 3, the valve core 3 includes a sliding rod 31 slidably mounted in the sliding sleeve 6 and a baffle 32 integrally formed with the sliding rod 31, the sliding rod 31 is cylindrical, the baffle 32 is disc-shaped, and the sectional area of the baffle 32 is larger than that of the sliding rod 31, an air inlet 7 communicated with the inside of the sliding sleeve 6 is formed on the valve body 1, the air inlet 7 corresponds to the end surface of the sliding rod 31, a circular air inlet 8 is formed on the side wall of the sliding rod 31, an air outlet 25 communicated with the air inlet 8 is formed at the end of the baffle 32, an air outlet 9 is formed on the valve cover 2, and the air outlet 9 is opposite to the air outlet 25. The elastic piece 4 is selected from a spring, and the elastic piece 4 is sleeved on the outer side of the sliding sleeve 6 and is abutted against the end part of the baffle plate 32.
When the gas pressure reducing valve is used, gas in a gas tank enters the sliding sleeve 6 from the gas inlet 7 and acts on the end part of the sliding rod 31 to push the sliding rod 31 to move, in the pushing process, the gas enters the valve core 3 from the gas inlet 8 and is discharged from the gas outlet 25, the discharged gas finally enters the welding gun from the gas outlet 9, in the discharging process of the gas from the gas outlet 25, the gas acts on the end face of the baffle 32, and the acting force of the gas acting on the end part of the baffle 32 is smaller than the force of the gas acting on the end part of the sliding rod 31 due to the fact that the sectional area of the baffle 32 is larger than that of the sliding rod 31, and the pressure reducing purpose is achieved.
The periphery of the sliding rod 31 is provided with a first sealing groove 10, the first sealing groove 10 is located between the air inlet 8 and the baffle 32, a first sealing ring 11 is installed in the first sealing groove 10, and the sealing performance between the sliding rod 31 and the sliding chute is improved by the first sealing ring 11. Preferably, the second seal ring 13 and the first seal ring 11 are both made of rubber. An annular second sealing groove 12 is formed in the peripheral side of the baffle 32, a second sealing ring 13 is installed in the second sealing groove 12, and the second sealing ring 13 improves the sealing performance between the baffle 32 and the sliding chute.
One end of the sliding rod 31, which is far away from the baffle 32, is provided with a filling groove 14, and the filling groove 14 is filled with a polytetrafluoroethylene layer 15. The polytetrafluoroethylene has a good sealing effect, and meanwhile, the polytetrafluoroethylene layer 15 also has a certain buffering effect, so that the force action of gas is more uniform.
One end of the valve body 1, which is far away from the valve cover 2, is provided with an internal thread groove 16 matched with the opening of the air tank, the bottom of the internal thread groove 16 is provided with an air inlet rod 17 partially abutted with the air tap of the air tank, the air inlet rod 17 is cylindrical, and the air inlet hole 7 extends and is arranged on the peripheral wall of the air inlet rod 17. The internal thread groove 16 is used for being screwed with the mouth of the gas tank in a thread fit mode, the gas inlet rod 17 is abutted to the gas tank gas nozzle part, and gas is filled towards the valve body 1 through the gas inlet hole 7. Meanwhile, a sealing gasket is arranged at the bottom of the internal thread groove 16, and the sealing gasket plays a role in sealing the connection between the internal thread groove 16 and the bottle opening of the gas tank, so that the air tightness of the connection between the internal thread groove 16 and the bottle opening of the gas tank is improved.
An external thread air outlet rod 18 is formed at one end, far away from the valve body 1, of the valve cover 2, an air outlet hole 9 is formed in the end portion of the external thread air outlet rod 18, and a nut 19 is installed on the external thread air outlet rod 18 in a threaded mode. The external thread gas outlet rod 18 is matched with a screw cap 19 for use, so that the gas outlet rod is connected with a gas pipe, and gas can be conveniently conveyed.
The valve body 1 is provided with an adjusting structure 20 for adjusting the outlet pressure of the valve body 1. The adjusting structure 20 comprises a fixing nut 21, a rotating screw 22 and a sliding disc 23, a sliding cavity 24 is formed in the valve body 1, the air inlet hole 7 penetrates through the sliding cavity 24, the sliding disc 23 slides in the sliding cavity 24, the fixing nut 21 is fixedly installed on the outer wall of the valve body 1, and the rotating screw 22 is in threaded connection with the fixing nut 21. By rotating the rotating screw 22, the sliding disc 23 can be driven to lift in the sliding cavity 24, and the pressure during air outlet is controlled.
The implementation principle of the gas reducing valve for the welding gun in the embodiment of the application is as follows: when the gas pressure reducing valve is used, gas in a gas tank enters the sliding sleeve 6 from the gas inlet 7 and acts on the end part of the sliding rod 31 to push the sliding rod 31 to move, in the pushing process, the gas enters the valve core 3 from the gas inlet 8 and is discharged from the gas outlet 25, the discharged gas finally enters the welding gun from the gas outlet 9, in the discharging process of the gas from the gas outlet 25, the gas acts on the end face of the baffle 32, and the acting force of the gas acting on the end part of the baffle 32 is smaller than the force of the gas acting on the end part of the sliding rod 31 due to the fact that the sectional area of the baffle 32 is larger than that of the sliding rod 31, and the pressure reducing purpose is achieved. The first sealing groove 10 is formed in the peripheral side of the sliding rod 31, the first sealing ring 11 is installed in the first sealing groove 10, the first sealing ring 11 plays a sealing role in sliding of the sliding rod 31 in the sliding groove, and the sealing effect in the gas transmission process is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. A gas pressure reducing valve for a welding gun, characterized in that: the valve comprises a valve body (1), a valve cover (2), a valve core (3) and an elastic piece (4), wherein one end of the valve body (1) is in threaded fit with one end of the valve cover (2), a sealing chamber (5) is formed between the valve body (1) and the valve cover (2), a sliding sleeve (6) is formed on the wall, close to the valve body (1), of the sealing chamber (5), the valve core (3) comprises a sliding rod (31) which is slidably installed in the sliding sleeve (6) and a baffle (32) which is integrally formed with the sliding rod (31), the sectional area of the baffle (32) is larger than that of the sliding rod (31), a gas inlet (7) communicated with the inside of the sliding sleeve (6) is formed on the valve body (1), the gas inlet (7) corresponds to the end face of the sliding rod (31), and a gas inlet (8) is formed on the side wall of the sliding rod (31), the tip of baffle (32) be formed with gas outlet (25) that air inlet (8) are linked together, be formed with venthole (9) on valve gap (2), venthole (9) with gas outlet (25) set up relatively, elastic component (4) cover is established the outside of sliding sleeve (6) and with the tip looks butt of baffle (32), be provided with on valve body (1) and be used for adjusting valve body (1) pressure size of giving vent to anger regulation structure (20), first seal groove (10) have been seted up to the week side of slide bar (31), first seal groove (10) are located between air inlet (8) and baffle (32), install first sealing washer (11) in first seal groove (10), leave the clearance between the outer wall of slide bar (31) and the inner wall of sliding sleeve (6).
2. The gas pressure reducing valve for a welding gun according to claim 1, wherein: one end of the valve body (1) far away from the valve cover (2) is provided with an internal thread groove (16) matched with the opening of the air tank, an air inlet rod (17) used for being abutted to the air nozzle part of the air tank is formed at the bottom of the internal thread groove (16), and the air inlet holes (7) are formed in the peripheral wall of the air inlet rod (17).
3. The gas pressure reducing valve for a welding gun according to claim 2, wherein: and a sealing gasket is arranged at the bottom of the internal thread groove (16).
4. The gas pressure reducing valve for a welding gun according to claim 1, wherein: valve body (1) is kept away from in valve gap (2) one end shaping has external screw thread gas outlet rod (18), the tip at external screw thread gas outlet rod (18) is seted up in venthole (9), screw-thread fit has nut (19) on external screw thread gas outlet rod (18).
5. The gas pressure reducing valve for a welding gun according to claim 1, wherein: the periphery of baffle (32) has seted up second seal groove (12), install second sealing washer (13) in second seal groove (12).
6. The gas pressure reducing valve for a welding gun according to claim 1, wherein: one end, far away from the baffle (32), of the sliding rod (31) is provided with a filling groove (14), and a polytetrafluoroethylene layer (15) is filled in the filling groove (14).
7. The gas pressure reducing valve for a welding gun according to claim 1, wherein: the elastic member (4) is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021830299.0U CN213361224U (en) | 2020-08-27 | 2020-08-27 | Gas pressure reducing valve for welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021830299.0U CN213361224U (en) | 2020-08-27 | 2020-08-27 | Gas pressure reducing valve for welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213361224U true CN213361224U (en) | 2021-06-04 |
Family
ID=76147477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021830299.0U Active CN213361224U (en) | 2020-08-27 | 2020-08-27 | Gas pressure reducing valve for welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213361224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681529A (en) * | 2022-12-28 | 2023-02-03 | 济南华信流体控制有限公司 | Fast-assembling valve |
-
2020
- 2020-08-27 CN CN202021830299.0U patent/CN213361224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681529A (en) * | 2022-12-28 | 2023-02-03 | 济南华信流体控制有限公司 | Fast-assembling valve |
| CN115681529B (en) * | 2022-12-28 | 2023-03-21 | 济南华信流体控制有限公司 | Fast-assembling valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213361224U (en) | Gas pressure reducing valve for welding gun | |
| CN111486269A (en) | High-airtightness valve for corrugated pipe | |
| CN205190864U (en) | Cartridge formula air throttle | |
| CN202349340U (en) | Stop valve | |
| CN210178941U (en) | Gas regulator suitable for low pressure gas pipe network | |
| CN218818192U (en) | Pneumatic pressure regulating stop valve | |
| CN101259821A (en) | Tyre explosion-proof equipment | |
| CN212360823U (en) | Low-temperature stop valve | |
| CN211083621U (en) | Non-detachable self-closing valve for liquefied gas cylinder | |
| CN204410649U (en) | A kind of proportioning machine liquid accumulator and storing lid | |
| CN112576920A (en) | High-pressure gas cylinder with high-pressure gas buffering function valve body | |
| CN2570549Y (en) | Water feed-in and discharge automatic control valve for cistern | |
| CN219139952U (en) | Compact pilot-operated safety valve | |
| CN219318215U (en) | Gas cylinder valve for soda water | |
| CN110220114A (en) | A kind of non-dismountable self-closing valve of liquefied gas bottle | |
| CN2929377Y (en) | Vacuum butterfly valve | |
| CN215981997U (en) | Pressure retaining valve | |
| CN220631882U (en) | Water bottle adapter and water dispenser | |
| CN216692233U (en) | Integral ball valve | |
| CN212900894U (en) | Automatic condensate water drain valve | |
| CN218936024U (en) | Pressure maintaining valve structure for gas bottle | |
| CN213745012U (en) | Sealing plug valve | |
| CN214456827U (en) | Novel self-sealing gun | |
| CN216477639U (en) | Tight seat of delivery valve of auto-parts | |
| CN213332573U (en) | Nitrogen safety valve capable of adjusting opening pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |