CN204358157U - A kind of gas valve - Google Patents
A kind of gas valve Download PDFInfo
- Publication number
- CN204358157U CN204358157U CN201420859731.7U CN201420859731U CN204358157U CN 204358157 U CN204358157 U CN 204358157U CN 201420859731 U CN201420859731 U CN 201420859731U CN 204358157 U CN204358157 U CN 204358157U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- outlet pipe
- suction tude
- valve body
- 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 - Fee Related
Links
Abstract
A kind of gas valve, comprise valve body and valve rod, sealing seat is provided with in described valve body, through hole is offered in sealing seat, valve ball is provided with in sealing seat, valve ball is connected with one end of valve rod, one end outer wall that valve rod is connected with valve ball is provided with the first locating bump, the other end outer wall is provided with the second locating bump, the locating slot with the first locating bump adaptation is provided with in described valve body, the center outer surface of valve rod offers two annular grooves, O-ring seals is connected with in each annular groove, described valve rod is connected with handle, valve rod is also provided with the loosen nut for fixed handle, described valve body comprises suction tude and outlet pipe, suction tude and outlet pipe are connected to copper tube, suction tude and outlet pipe are connected to the octagonal cap for fixing copper tube.The utility model structure is simple, practical.
Description
Technical field
The utility model relates to a kind of valve, is specially a kind of gas valve.
Background technique
Gas valve is the controlling component in gas delivery system, has cut-off, adjustment, water conservancy diversion, prevents the functions such as adverse current, voltage stabilizing, shunting or overflow pressure relief.For the gas valve of gas control system, various valves used from the simplest stop valve to very complicated robot control system(RCS), its kind and specification are quite various.Valve can be used for the flowing controlling all kinds fluids such as air, steam, various corrosive gass.
At present, the sealability of gas valve is an important indicator of normal control and adjustments of gas, existing gas valve in use sealing gasket because being subject to the extruding of unbalance stress, sealing gasket place is caused easily to leak gas, increase the maintenance rate of gas valve, a large amount of Leakage Gas causes the waste degree of gas resource to increase.
Meanwhile, some have corrosive gas in transportation process, often directly impact gasket seal, and the phenomenon of bubbling and damage occurs to cause gasket seal easily to occur under some long-term erosion with corrosive gas, causes the phenomenon of gas leakage to occur.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is a kind of gas valve providing a kind of good seal performance, maintenance rate low.
For achieving the above object, the utility model provides following technological scheme: a kind of gas valve, comprise valve body and valve rod, sealing seat is provided with in described valve body, through hole is offered in sealing seat, valve ball is provided with in sealing seat, valve ball is connected with one end of valve rod, one end outer wall that valve rod is connected with valve ball is provided with the first locating bump, the other end outer wall is provided with the second locating bump, the locating slot with the first locating bump adaptation is provided with in described valve body, the center outer surface of valve rod offers two annular grooves, O-ring seals is connected with in each annular groove, described valve rod is connected with handle, valve rod is also provided with the loosen nut for fixed handle, described valve body comprises suction tude and outlet pipe, suction tude and outlet pipe are connected to copper tube, suction tude and outlet pipe are connected to the octagonal cap for fixing copper tube, the internal wall of pipe orifice of described suction tude and the internal wall of pipe orifice of outlet pipe are equipped with the first baffle plate and the first ring washer, described copper tube comprises large-aperture pipe and small aperture pipe, described small aperture inner tube wall is provided with second baffle and the second ring washer.
Further, described first baffle plate, second baffle, the first ring washer and the second ring washer form an annular cavity.
Further, the sealing gasket with annular cavity adaptation is provided with in described annular cavity.
Contrast the deficiencies in the prior art, the beneficial effect that the technological scheme that the utility model provides is brought: 1. the utility model provides a kind of uniform power by the first baffle plate, second baffle, the first ring washer and the second ring washer each face to sealing gasket, again by the design of annular cavity and sealing gasket adaptation, sealing gasket is prevented to be squeezed and the phenomenon of being out of shape occurs and causes distortion place of sealing gasket easily to be leaked gas, and then extend the working life of equipment, while economizing on resources, reduce the maintenance rate of equipment, be conducive to sustainable development.2. the utility model is by the O-ring seals of two on valve rod, for the sealing at valve rod place provides double shield, effectively prevents gas from revealing from valve rod, and then reaches the effect of saving gas resource.3. sealing gasket is housed in annular cavity by the utility model, effectively prevents the direct impact of being corroded property of sealing gasket gas and the phenomenon damaged occurs, improves the working life of sealing gasket.
Accompanying drawing explanation
Fig. 1 is generalized section of the present utility model.
Fig. 2 is G portion of the present utility model schematic diagram.
Embodiment
With reference to Fig. 1, the utility model embodiment is described further.
A kind of gas valve, comprise valve body 1 and valve rod 2, sealing seat 11 is provided with in described valve body 1, through hole is offered in sealing seat 11, valve ball 12 is provided with in sealing seat 11, valve ball 12 is connected with one end of valve rod 2, one end outer wall that valve rod 2 is connected with valve ball 12 is provided with the first locating bump 21, first locating bump 21 is located for making valve rod 2, the other end outer wall is provided with the second locating bump 22, second locating bump 22 is located for making jam nut 3, the locating slot 13 with the first locating bump 21 adaptation is provided with in described valve body 1, the center outer surface of valve rod 2 offers two annular grooves 23, O-ring seals 4 is connected with in each annular groove 23, the sealing effect at valve rod 2 place effectively can be improved by two O-ring seals 4, described valve rod 2 is connected with handle 5, valve rod 2 is also provided with the loosen nut 3 for fixed handle 5, described valve body 1 comprises suction tude 14 and outlet pipe 15, suction tude 14 and outlet pipe 15 are connected to copper tube 6, suction tude 14 and outlet pipe 15 are connected to the octagonal cap 7 for fixing copper tube 6, the internal wall of pipe orifice of described suction tude 14 and the internal wall of pipe orifice of outlet pipe 15 are equipped with the first baffle plate 8 and the first ring washer 9, described copper tube comprises large-aperture pipe 61 and small aperture pipe 62, described small aperture pipe 62 inwall is provided with second baffle 621 and the second ring washer 622.
Further, described first baffle plate 8, second baffle 621, first ring washer 9 and the second ring washer 622 form an annular cavity.
Further, the sealing gasket 10 with annular cavity adaptation is provided with in described annular cavity.
Sealing gasket 10 is housed in wherein by annular cavity, effectively prevents the direct impact of being corroded property of sealing gasket 10 gas and the phenomenon damaged occurs, improves the working life of sealing gasket 10.
And form the first baffle plate 8 of annular cavity, second baffle 621, first back-up ring 9 and the second back-up ring 622 when crush seal pad 10, because sealing gasket 10 and annular cavity are adaptive, and it is not yielding that sealing 10 is padded.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, those skilled in the art carries out common change and replaces should being included in protection domain of the present utility model within the scope of technical solutions of the utility model.
Claims (3)
1. a gas valve, comprise valve body and valve rod, it is characterized in that: in described valve body, be provided with sealing seat, through hole is offered in sealing seat, valve ball is provided with in sealing seat, valve ball is connected with one end of valve rod, one end outer wall that valve rod is connected with valve ball is provided with the first locating bump, the other end outer wall is provided with the second locating bump, the locating slot with the first locating bump adaptation is provided with in described valve body, the center outer surface of valve rod offers two annular grooves, O-ring seals is connected with in each annular groove, described valve rod is connected with handle, valve rod is also provided with the loosen nut for fixed handle, described valve body comprises suction tude and outlet pipe, suction tude and outlet pipe are connected to copper tube, suction tude and outlet pipe are connected to the octagonal cap for fixing copper tube, the internal wall of pipe orifice of described suction tude and the internal wall of pipe orifice of outlet pipe are equipped with the first baffle plate and the first ring washer, described copper tube comprises large-aperture pipe and small aperture pipe, described small aperture inner tube wall is provided with second baffle and the second ring washer.
2. a kind of gas valve according to claim 1, is characterized in that: described first baffle plate, second baffle, the first ring washer and the second ring washer form an annular cavity.
3. a kind of gas valve according to claim 1 and 2, is characterized in that: be provided with the sealing gasket with annular cavity adaptation in described annular cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420859731.7U CN204358157U (en) | 2014-12-30 | 2014-12-30 | A kind of gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420859731.7U CN204358157U (en) | 2014-12-30 | 2014-12-30 | A kind of gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204358157U true CN204358157U (en) | 2015-05-27 |
Family
ID=53259627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420859731.7U Expired - Fee Related CN204358157U (en) | 2014-12-30 | 2014-12-30 | A kind of gas valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204358157U (en) |
-
2014
- 2014-12-30 CN CN201420859731.7U patent/CN204358157U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20201230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |