CN219866286U - Stop valve - Google Patents
Stop valve Download PDFInfo
- Publication number
- CN219866286U CN219866286U CN202321066760.3U CN202321066760U CN219866286U CN 219866286 U CN219866286 U CN 219866286U CN 202321066760 U CN202321066760 U CN 202321066760U CN 219866286 U CN219866286 U CN 219866286U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- valve core
- gasket
- rotating wheel
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 62
- 239000011521 glass Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The utility model provides a stop valve, and belongs to the technical field of valves. The valve comprises a valve body, a valve rod, a rotating wheel and a valve core, wherein the valve rod is in threaded connection with the valve body, and the upper end and the lower end of the valve rod are respectively connected with the rotating wheel and the valve core; the valve body is internally provided with a sealing seat, and the rotating wheel can drive the valve core to move towards the direction approaching to or away from the sealing seat through the valve rod; the valve core comprises a valve core body, a sealing gasket, a fixing gasket and a fixing bolt, wherein the fixing bolt can sequentially fix the sealing gasket and the fixing gasket at the bottom of the valve core body from top to bottom; the sealing gasket is made of glass reinforced polytetrafluoroethylene material, the lower part of the valve core body is provided with a mounting groove, and the sealing gasket is clamped in the mounting groove. The utility model has the advantages of better sealing performance, simpler maintenance and the like.
Description
Technical Field
The utility model belongs to the technical field of valves, and relates to a stop valve.
Background
The stop valve, also called a stop valve, is the most widely used valve, and is popular because the friction force between sealing surfaces in the opening and closing process is small, the stop valve is durable, the opening height is small, the manufacture is easy, the maintenance is convenient, and the stop valve is not only suitable for medium and low pressure, but also suitable for high pressure. The closing principle of the stop valve is that the valve clack sealing surface is tightly attached to the valve seat sealing surface by means of the valve lever pressure, so that medium circulation is prevented.
However, when the current stop valve is used for a steam pipeline, the sealing performance of the valve core is difficult to meet the requirement, so that the steam leakage condition frequently occurs, and the structure of the stop valve needs to be modified to adapt to the high-temperature and high-pressure steam environment.
Disclosure of Invention
The utility model aims to solve the problems existing in the prior art, provides a stop valve, and aims to solve the technical problem of insufficient sealing performance in stopping, so that the stop valve can be arranged in a steam pipeline to realize sealing and stopping of steam.
The aim of the utility model can be achieved by the following technical scheme: the stop valve is characterized by comprising a valve body, a valve rod, a rotating wheel and a valve core, wherein the valve rod is in threaded connection with the valve body, and the upper end and the lower end of the valve rod are respectively connected with the rotating wheel and the valve core; the valve body is internally provided with a sealing seat, and the rotating wheel can drive the valve core to move towards a direction approaching to or away from the sealing seat through the valve rod; the valve core comprises a valve core body, a sealing gasket, a fixing gasket and a fixing bolt, wherein the fixing bolt can sequentially fix the sealing gasket and the fixing gasket at the bottom of the valve core body from top to bottom; the sealing gasket is made of glass reinforced polytetrafluoroethylene materials, the lower part of the valve core body is provided with a mounting groove, and the sealing gasket is clamped in the mounting groove.
Preferably, the top end of the sealing seat is provided with a plurality of sealing rings protruding upwards, and the sealing rings can be one circle or a plurality of circles; the outer diameter of the sealing ring positioned at the outermost side is smaller than the outer diameter of the sealing washer, and the inner diameter of the sealing ring positioned at the innermost side is larger than the outer diameter of the fixing washer.
The utility model has the advantages that:
1. in this stop valve, reform transform the case, set up the sealing gasket that glass reinforcement polytetrafluoroethylene material made in its lower extreme, and then make its sealing performance obtain promoting by a wide margin for it can be used to steam conduit's sealed shutoff, effectively prevents steam leakage.
2. In the stop valve, the sealing gasket is adopted to replace the valve core to contact the sealing seat, so that the abrasion of the valve core can be effectively avoided, and the maintenance of the stop valve is simpler and more convenient.
Drawings
Fig. 1 is a schematic sectional view of the present shutoff valve.
Fig. 2 is a schematic sectional view of the valve element in the present shutoff valve.
In the figure, 1, a valve body; 11. a seal ring; 2. a valve stem; 3. a rotating wheel; 41. a valve core body; 42. a sealing gasket; 43. fixing the gasket; 44. a fixing bolt; 45. and a mounting groove.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1 and 2, a stop valve comprises a valve body 1, a valve rod 2, a rotating wheel 3 and a valve core, wherein the valve rod 2 is in threaded connection with the valve body 1, and the upper end and the lower end of the valve rod 2 are respectively connected with the rotating wheel 3 and the valve core; the valve body 1 is internally provided with a sealing seat, and the rotating wheel 3 can drive the valve core to move towards the direction approaching to or away from the sealing seat through the valve rod 2; the valve core comprises a valve core body 41, a sealing gasket 42, a fixing gasket 43 and a fixing bolt 44, wherein the fixing bolt 44 can sequentially fix the sealing gasket 42 and the fixing gasket 43 at the bottom of the valve core body 41 from top to bottom; the sealing gasket 42 is made of glass reinforced polytetrafluoroethylene material, the lower part of the valve core body 41 is provided with a mounting groove 45, and the sealing gasket 42 is clamped in the mounting groove 45.
In the stop valve, the valve core is reformed, and the sealing gasket 42 made of the glass reinforced polytetrafluoroethylene material is arranged at the lower end of the valve core, so that the sealing of the valve core is greatly improved, the valve core can be used for sealing and stopping a steam pipeline, and steam leakage is effectively prevented. Furthermore, the sealing gasket is adopted to replace the valve core to contact the sealing seat, so that the abrasion of the valve core can be effectively avoided, and the maintenance of the stop valve is simpler and more convenient.
As shown in fig. 1, the top end of the sealing seat is provided with a plurality of sealing rings 11 protruding upwards, and the sealing rings 11 can be one circle or a plurality of circles; the outer diameter of the sealing ring positioned at the outermost side is smaller than the outer diameter of the sealing washer, and the inner diameter of the sealing ring positioned at the innermost side is larger than the outer diameter of the fixing washer. The sealing seat is provided with the sealing ring 11, so that the sealing effect can be further improved.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (2)
1. The stop valve is characterized by comprising a valve body (1), a valve rod (2), a rotating wheel (3) and a valve core, wherein the valve rod (2) is in threaded connection with the valve body (1), and the upper end and the lower end of the valve rod (2) are respectively connected with the rotating wheel (3) and the valve core; the valve body (1) is internally provided with a sealing seat, and the rotating wheel (3) can drive the valve core to move towards the direction approaching to or away from the sealing seat through the valve rod (2); the valve core comprises a valve core body (41), a sealing gasket (42), a fixing gasket (43) and a fixing bolt (44), wherein the fixing bolt (44) can sequentially fix the sealing gasket (42) and the fixing gasket (43) at the bottom of the valve core body (41) from top to bottom; the sealing gasket (42) is made of glass reinforced polytetrafluoroethylene materials, an installation groove (45) is formed in the lower portion of the valve core body (41), and the sealing gasket (42) is clamped in the installation groove (45).
2. A stop valve according to claim 1, characterized in that the top end of the sealing seat is provided with a plurality of sealing rings (11) protruding upwards, and the sealing rings (11) can be one circle or a plurality of circles; the outer diameter of the sealing ring (11) positioned at the outermost side is smaller than the outer diameter of the sealing gasket, and the inner diameter of the sealing ring (11) positioned at the innermost side is larger than the outer diameter of the fixing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321066760.3U CN219866286U (en) | 2023-04-28 | 2023-04-28 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321066760.3U CN219866286U (en) | 2023-04-28 | 2023-04-28 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219866286U true CN219866286U (en) | 2023-10-20 |
Family
ID=88339584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321066760.3U Active CN219866286U (en) | 2023-04-28 | 2023-04-28 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219866286U (en) |
-
2023
- 2023-04-28 CN CN202321066760.3U patent/CN219866286U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |