CN220204699U - Embedded sealing structure of stop valve - Google Patents
Embedded sealing structure of stop valve Download PDFInfo
- Publication number
- CN220204699U CN220204699U CN202322130652.4U CN202322130652U CN220204699U CN 220204699 U CN220204699 U CN 220204699U CN 202322130652 U CN202322130652 U CN 202322130652U CN 220204699 U CN220204699 U CN 220204699U
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- China
- Prior art keywords
- sealing
- embedded
- valve
- groove
- stop valve
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- 238000007789 sealing Methods 0.000 title claims abstract description 114
- 238000009434 installation Methods 0.000 claims description 4
- 229920001973 fluoroelastomer Polymers 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
- 239000012530 fluid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model provides an embedded sealing structure of a stop valve, and belongs to the technical field of stop valves. It has solved the relatively poor problem of sealed effect of current stop valve. The embedded sealing structure of the stop valve comprises a valve clack and a valve body, wherein a valve seat is formed in the valve body, an annular mounting surface is arranged at the upper end of the valve seat, an annular mounting groove is formed in the mounting surface, the embedded sealing structure comprises a sealing gasket with the lower end embedded in the mounting groove, the upper end of the sealing gasket is positioned outside a sealing groove, the lower end face of the valve clack is a sealing plane, and the sealing plane is tightly pressed on the upper end of the sealing gasket. The embedded sealing structure of the stop valve enables the upper end of the sealing gasket to deform through the downward pressing of the valve clack, and the sealing effect between the valve clack and the sealing gasket can be improved.
Description
Technical Field
The utility model belongs to the technical field of stop valves, and relates to an embedded sealing structure of a stop valve.
Background
The stop valve is that fluid can only flow along the water inlet, but the delivery port medium can not flow backward, and the stop valve belongs to the forced seal type valve, so when the valve is closed, the sealing surface needs to be guaranteed not to leak, and a common plastic stop valve is usually provided with a sealing gasket on a valve clack, and in the valve closing process, the fluid is stopped suddenly, and a large inertia force can be generated, so that the sealing gasket is easy to be punched and turned over. The problem occurs in the prior art, the sealing gasket is clamped by axial or lateral coating, the sealing gasket is adhered to the valve clack by glue, then, the sealing gasket is clamped by the scheme, the processing procedure is complex and the effect is limited, the glue scheme is adopted, the processing procedure is complex, and the watering residues have the safety problem.
Therefore, aiming at the scheme, an embedded sealing structure is developed: such as chinese patent application [ grant bulletin number: CN205715887U discloses a stop valve with improved structure, comprising a valve body and a valve rod, wherein the tail end of the valve body is provided with a connecting pipe for connecting a compressor and supplying fluid, the connecting pipe comprises a pipeline body and a paper sealing ring, the inner wall of the outlet end of the pipeline body is provided with a notch matched with the paper sealing ring, and the paper sealing ring is embedded in the notch.
The structure is that the paper sealing ring is directly arranged in the notch and is sealed by the contact of two planes, but after long-time use, the paper sealing ring can age, and the sealing is realized by completely attaching the surface to the surface when the paper sealing ring is sealed, so that the sealing effect between the surface and the surface is poor when the paper sealing ring ages, and the sealing effect of the stop valve after long-time use is affected.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides an embedded sealing structure of a stop valve, which aims to solve the technical problems that: how to solve the problem of poor sealing effect of the prior stop valve.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides an embedded seal structure of stop valve, includes valve clack and valve body, form the disk seat in the valve body, the upper end of disk seat has and is annular installation face, its characterized in that, set up on the installation face and be annular mounting groove, this embedded seal structure includes the sealed pad in the lower extreme embedding mounting groove, the upper end of sealed pad is located outside the seal groove, the lower terminal surface of valve clack is sealing plane, sealing plane compresses tightly on sealing pad's upper end.
Working principle: the sealing groove is formed in the mounting surface of the valve seat, the lower end of the sealing gasket is embedded into the sealing groove, at the moment, the upper end of the sealing gasket is located outside the sealing groove, when the stop valve is closed, the valve clack is pressed downwards, the sealing plane of the valve clack is pressed on the upper end of the sealing gasket, so that the upper end of the sealing gasket is deformed, and sealing is formed.
In the embedded sealing structure of the stop valve, the mounting groove is a dovetail groove, the lower end of the sealing gasket is a dovetail-shaped mounting part, the lower end of the mounting part gradually reduces in width from bottom to top, and the mounting part is embedded into the dovetail groove and is attached to the groove wall of the dovetail groove.
The dovetail grooves are formed, so that the lower end of the sealing gasket is connected with the valve seat more stably, the sealing gasket is prevented from being washed away along with the impulsive force of fluid in the repeated opening and closing process of the stop valve, the stability of the sealing gasket is improved, and the sealing effect of the sealing structure is further improved.
In the embedded sealing structure of the stop valve, the upper end face of the sealing gasket is a sealing face, and the vertical section of the sealing face is semicircular.
The arrangement of the structure can reduce the contact area between the sealing gasket and the valve clack, thereby improving the pressure intensity and ensuring better sealing effect of the sealing gasket.
In the embedded sealing structure of the stop valve, the mounting groove is formed in the middle of the mounting surface.
The setting of this structure, the upper end of being convenient for the valve clack pushes down in-process sealing pad can all take place certain deformation about, has corresponding deformation space, promotes the sealed effect between valve clack and the sealing pad.
In the embedded sealing structure of the stop valve, the sealing gasket is made of silicon rubber or fluororubber.
The shore hardness of the sealing gasket can be set to be 70-80A at the moment, so that the sealing effect of the stop valve under the hot water condition can be guaranteed, and the sealing performance of the sealing gasket in the long-term use process of the stop valve is improved.
Compared with the prior art, the embedded sealing structure of the stop valve has the advantages that: when the valve is repeatedly opened and closed, the lower end of the sealing gasket is embedded into the mounting groove, so that the situation that the valve is turned over under the impact of fluid is not easy to occur, the service life of the valve is prolonged, the upper end of the sealing gasket is deformed through the downward pressing of the valve clack, and the sealing effect between the valve clack and the sealing gasket can be improved.
Drawings
Fig. 1 is a sectional view of the assembled utility model.
Fig. 2 is a partial enlarged view at a in fig. 1.
Fig. 3 is a schematic view of the structure of the gasket of the present utility model.
FIG. 4 is a cross-sectional view of the gasket of the present utility model after separation from the mold core.
In the figure, 1, a valve clack; 11. a sealing plane; 2. a valve body; 3. a valve seat; 31. a mounting surface; 32. a mounting groove; 4. a sealing gasket; 41. a mounting part; 42. sealing surfaces; 5. a mold core; 51. and a positioning 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, the embedded sealing structure of the stop valve comprises a valve clack 1 and a valve body 2, wherein a valve seat 3 is formed in the valve body 2, and the upper end of the valve seat 3 is provided with an annular mounting surface 31.
Specifically, as shown in fig. 1-3, the sealing surface 42 is provided with an annular mounting groove 32, the embedded sealing structure comprises a sealing gasket 4 with the lower end embedded in the mounting groove 32, the upper end of the sealing gasket 4 is positioned outside the sealing groove, the lower end surface of the valve clack 1 is a sealing plane 11, and the sealing plane 11 is pressed on the upper end of the sealing gasket 4.
Working principle: through offer to be annular seal groove on the sealed face 42 of disk seat 3, with the lower extreme embedding of sealing pad 4 in the seal groove, the upper end of sealing pad 4 is outside the seal groove this moment, when the stop valve is stopped, valve clack 1 pushes down, the sealing plane 11 of valve clack 1 compresses tightly on the upper end of sealing pad 4 for the upper end of sealing pad 4 takes place deformation, thereby form sealedly, through setting up sealing pad 4 on disk seat 3, when the valve is opened and close repeatedly, because the lower extreme of sealing pad 4 is embedded into in mounting groove 32, consequently, be difficult for taking place under the impact of fluid and be turned over by the condition, the effect of valve life has been promoted, and make the upper end of sealing pad 4 warp through valve clack 1 pushing down, can promote the sealed effect between valve clack 1 and the sealing pad 4.
As shown in fig. 1-3, the mounting groove 32 is a dovetail groove, the lower end of the sealing gasket 4 is a dovetail-shaped mounting portion 41, the lower end of the mounting portion 41 gradually decreases from bottom to top, the mounting portion 41 is embedded into the dovetail groove and is attached to the groove wall of the dovetail groove, the upper end surface of the sealing gasket 4 is a sealing surface 42, the vertical section of the sealing surface 42 is semicircular, and the mounting groove 32 is formed in the middle of the mounting surface 31.
As shown in fig. 3, the gasket 4 is made of silicone rubber or fluororubber.
As shown in fig. 4, the upper end of the gasket 4 is embedded into the mold core 5, the sealing surface 42 of the gasket 4 is attached to the groove wall of the positioning groove 51 in the mold core 5, and in the injection molding process, the melted plastic wraps the mounting portion 41 and can embed the gasket 4 into the valve seat 3, thereby realizing stable mounting of the gasket 4.
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 (5)
1. The utility model provides an embedded seal structure of stop valve, includes valve clack (1) and valve body (2), form disk seat (3) in valve body (2), disk seat (3)'s upper end has and is annular installation face (31), its characterized in that, set up on installation face (31) and be annular mounting groove (32), this embedded seal structure includes sealing pad (4) in lower extreme embedding mounting groove (32), the upper end of sealing pad (4) is located outside the seal groove, the lower terminal surface of valve clack (1) is sealing plane (11), sealing plane (11) compress tightly on the upper end of sealing pad (4).
2. The embedded sealing structure of the stop valve according to claim 1, wherein the mounting groove (32) is a dovetail groove, the lower end of the sealing gasket (4) is a dovetail-shaped mounting portion (41), the lower end of the mounting portion (41) gradually decreases in width from bottom to top, and the mounting portion (41) is embedded in the dovetail groove and is attached to the groove wall of the dovetail groove.
3. The embedded sealing structure of the stop valve according to claim 1 or 2, wherein the upper end surface of the sealing gasket (4) is a sealing surface (42), and the vertical section of the sealing surface (42) is semicircular.
4. The embedded sealing structure of the stop valve according to claim 1 or 2, wherein the mounting groove (32) is opened in the middle of the mounting surface (31).
5. The embedded sealing structure of a shut-off valve according to claim 1 or 2, characterized in that the gasket (4) is made of silicone rubber or fluororubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322130652.4U CN220204699U (en) | 2023-08-08 | 2023-08-08 | Embedded sealing structure of stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322130652.4U CN220204699U (en) | 2023-08-08 | 2023-08-08 | Embedded sealing structure of stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220204699U true CN220204699U (en) | 2023-12-19 |
Family
ID=89144332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322130652.4U Active CN220204699U (en) | 2023-08-08 | 2023-08-08 | Embedded sealing structure of stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220204699U (en) |
-
2023
- 2023-08-08 CN CN202322130652.4U patent/CN220204699U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |