CN215567959U - Self-sealing valve core and joint self-sealing structure - Google Patents
Self-sealing valve core and joint self-sealing structure Download PDFInfo
- Publication number
- CN215567959U CN215567959U CN202121373205.6U CN202121373205U CN215567959U CN 215567959 U CN215567959 U CN 215567959U CN 202121373205 U CN202121373205 U CN 202121373205U CN 215567959 U CN215567959 U CN 215567959U
- Authority
- CN
- China
- Prior art keywords
- valve core
- sealing
- self
- pouring part
- spring
- 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
A self-sealing valve core and joint self-sealing structure comprises a valve body; the upper part of the valve body is hermetically provided with a joint seat; the valve body is internally provided with a valve core pouring part, a valve core, a spring, a cushion cover and a clamping ring; the valve core pouring part is arranged above the valve core, and an auxiliary sealing bulge is arranged on a sealing surface of the valve core facing the valve core pouring part; the upper part of the valve core pouring part is conical with an upward tip part, and the upper part of the valve core pouring part and the bottom of the joint seat are arranged in a sealing way; the spring is vertically arranged inside the valve core; the top of the spring presses the valve core pouring part, and the bottom of the spring abuts against the gasket sleeve; the gasket is arranged on the clamping ring; the outer periphery of the clamping ring is fixed in the annular groove on the inner periphery of the bottom of the valve body. The utility model has the advantages of simple structure, safety, reliability, high air tightness, long service life and low maintenance cost.
Description
Technical Field
The utility model relates to the field of self-sealing valves, in particular to a self-sealing valve core and joint self-sealing structure.
Background
At present, SF6 gas-insulated metal-enclosed switchgear is generally adopted in the power switch industry, the self-sealing joint is applied to various SF6 switches, and the performance of the switchgear is directly influenced by the tightness of the self-sealing structure.
At present, the self-sealing joints are various in types, the principle of the self-sealing structure is different in size, a key component is a valve core, the quality of the valve core directly affects the sealing performance and reliability of matched products and valves, if the sealing performance of the self-sealing joint fails, SF6 gas in switch equipment can leak, low-pressure alarm or locking of the switch equipment is caused, and SF6 switch equipment is caused to trip and power off seriously.
Therefore, how to improve the airtightness is a problem to be solved.
SUMMERY OF THE UTILITY MODEL
Objects of the utility model
In order to solve the technical problems in the background art, the utility model provides a self-sealing valve core and joint self-sealing structure which is simple in structure, safe, reliable, high in air tightness, long in service life and low in maintenance cost.
(II) technical scheme
In order to solve the problems, the utility model provides a self-sealing valve core and joint self-sealing structure, which comprises a valve body; the upper part of the valve body is hermetically provided with a joint seat; the valve body is internally provided with a valve core pouring part, a valve core, a spring, a cushion cover and a clamping ring;
the valve core pouring part is arranged above the valve core, and an auxiliary sealing bulge is arranged on a sealing surface of the valve core facing the valve core pouring part; the upper part of the valve core pouring part is conical with an upward tip part, and the upper part of the valve core pouring part and the bottom of the joint seat are arranged in a sealing way;
the spring is vertically arranged inside the valve core; the top of the spring presses the valve core pouring part, and the bottom of the spring abuts against the gasket sleeve;
the gasket is arranged on the clamping ring; the outer periphery of the clamping ring is fixed in the annular groove on the inner periphery of the bottom of the valve body.
Preferably, ethylene propylene diene monomer is coated between the upper part of the valve core pouring part and the bottom of the joint seat.
Preferably, the valve body, the valve core and the spring are coaxially arranged.
Preferably, the valve core pouring part is poured and molded by adopting a vulcanization process; the valve core pouring part adopts a double-groove design.
According to the utility model, the upper part of the valve core pouring part is conical with an upward tip, and an auxiliary sealing bulge is arranged on a sealing surface of the valve core facing the valve core pouring part, so that the compression amount of the sealing part is effectively increased, the sealing area is increased, and the air tightness of the product is improved; under the pressure of the spring, the compression amount of the sealing part is effectively ensured, the air tightness of the product is improved, and the reliability of the product is improved. Wherein, the spring can realize self sealss function. The spring, the cushion cover and the clamping ring are matched with each other, the structure is simple and reliable, and the assembly efficiency of the product is improved.
In the utility model, the matching part of the valve core and the joint seat is provided with the guide structure, thereby avoiding the hidden trouble of air leakage caused by the incorrect valve core in the use process of the self-sealing joint, ensuring that the hidden trouble of air leakage caused by the incorrect valve core in the use process of equipment is avoided, and improving the reliability of products. Ethylene propylene diene monomer is coated between the upper part of the valve core pouring part and the bottom of the joint seat, so that the sealing effect is improved. Meanwhile, the ethylene propylene diene monomer has good aging resistance, weather resistance and electrical insulation performance. The valve core pouring part is poured and formed by adopting a vulcanization process, the shape is regular, and the forming efficiency is high; the valve core pouring part adopts a double-groove design, so that the pouring area is increased, the bonding strength is effectively enhanced, and the reliability of a product is improved.
Drawings
Fig. 1 is a schematic structural view of a self-sealing valve core and a joint self-sealing structure provided by the utility model.
Fig. 2 is a schematic view of a partial structure of the self-sealing valve core and the joint self-sealing structure provided by the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-2, the self-sealing valve core and joint self-sealing structure provided by the utility model comprises a valve body; the upper part of the valve body is hermetically provided with a joint seat 1; the valve body is internally provided with a valve core pouring part 2, a valve core 3, a spring 4, a cushion cover 5 and a clamping ring 6;
the valve core pouring part 2 is arranged above the valve core 3, and an auxiliary sealing bulge is arranged on a sealing surface of the valve core 3 facing the valve core pouring part 2; the upper part of the valve core pouring part 2 is conical with an upward tip part, and the upper part of the valve core pouring part 2 and the bottom of the joint seat 1 are arranged in a sealing way;
the spring 4 is vertically arranged inside the valve core 3; the top of the spring 4 presses the valve core pouring part 2, and the bottom of the spring 4 is propped against the cushion cover 5;
the cushion cover 5 is arranged on the clamping ring 6; the outer periphery of the clamping ring 6 is fixed in an annular groove on the inner periphery of the bottom of the valve body.
In the utility model, the upper part of the valve core pouring part 2 is conical with an upward tip part, and the sealing surface of the valve core 3 facing the valve core pouring part 2 is provided with an auxiliary sealing bulge, thereby effectively increasing the compression amount of the sealing part and the sealing area, and improving the air tightness of the product; under the pressure of the spring 4, the compression amount of the sealing part is effectively ensured, the air tightness of the product is improved, and the reliability of the product is improved. Wherein, spring 4 can realize self sealss function. The spring 4, the cushion cover 5 and the clamping ring 6 are matched with each other, the structure is simple and reliable, and the assembly efficiency of the product is improved.
In an optional embodiment, the matching part of the valve core 3 and the joint seat 1 is provided with a guide structure, so that the hidden danger that the valve core is not normally leaked in the use process of the self-sealing joint is avoided, the hidden danger that the valve core is not normally leaked in the use process of equipment is ensured, and the reliability of a product is improved.
In an optional embodiment, Ethylene Propylene Diene Monomer (EPDM) is coated between the upper part of the valve core pouring part 2 and the bottom of the joint seat 1, so that the sealing effect is improved. Meanwhile, the ethylene propylene diene monomer has good aging resistance, weather resistance and electrical insulation performance.
In an optional embodiment, the valve body, the valve core 3 and the spring 4 are coaxially arranged, so that the use effect is improved, and the air tightness is better ensured.
In an optional embodiment, the valve core pouring part 2 is poured and formed by adopting a vulcanization process, the shape is regular, and the forming efficiency is high; the valve core pouring part 2 adopts a double-groove design, so that the pouring area is increased, the bonding strength is effectively enhanced, and the reliability of a product is improved.
In conclusion, the utility model has the advantages of simple structure, safety, reliability, high air tightness, long service life and low maintenance cost.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (4)
1. A self-sealing valve core and joint self-sealing structure is characterized by comprising a valve body; the upper part of the valve body is hermetically provided with a joint seat (1); a valve core pouring part (2), a valve core (3), a spring (4), a cushion cover (5) and a clamping ring (6) are arranged in the valve body;
the valve core pouring part (2) is arranged above the valve core (3), and an auxiliary sealing bulge is arranged on a sealing surface of the valve core (3) facing the valve core pouring part (2); the upper part of the valve core pouring part (2) is conical with the upward tip part, and the upper part of the valve core pouring part (2) and the bottom of the joint seat (1) are arranged in a sealing way;
the spring (4) is vertically arranged inside the valve core (3); the top of the spring (4) presses the valve core pouring part (2), and the bottom of the spring (4) is propped against the cushion cover (5);
the cushion cover (5) is arranged on the clamping ring (6); the outer periphery of the clamping ring (6) is fixed in an annular groove on the inner periphery of the bottom of the valve body.
2. The self-sealing valve core and joint structure according to claim 1, characterized in that Ethylene Propylene Diene Monomer (EPDM) is coated between the upper part of the valve core pouring part (2) and the bottom of the joint seat (1).
3. The self-sealing valve core and joint self-sealing structure according to claim 1, characterized in that the valve body, the valve core (3) and the spring (4) are coaxially arranged.
4. The self-sealing valve core and joint structure according to claim 1, wherein the valve core pouring part (2) is poured and formed by a vulcanization process; the valve core pouring part (2) adopts a double-groove design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121373205.6U CN215567959U (en) | 2021-06-21 | 2021-06-21 | Self-sealing valve core and joint self-sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121373205.6U CN215567959U (en) | 2021-06-21 | 2021-06-21 | Self-sealing valve core and joint self-sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215567959U true CN215567959U (en) | 2022-01-18 |
Family
ID=79818970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121373205.6U Active CN215567959U (en) | 2021-06-21 | 2021-06-21 | Self-sealing valve core and joint self-sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215567959U (en) |
-
2021
- 2021-06-21 CN CN202121373205.6U patent/CN215567959U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6130394A (en) | Hermetically sealed vacuum load interrupter switch with flashover features | |
| AU2007251105B2 (en) | Vacuum circuit breaker of tank type | |
| CN101383488B (en) | Solid insulation complete enclosed switch isolation cover | |
| CN110265828B (en) | High-voltage high-vacuum sealing electric connector | |
| CN108257741B (en) | Post insulator and insulating post | |
| CN215567959U (en) | Self-sealing valve core and joint self-sealing structure | |
| CN201795113U (en) | Special SF6 gas valve | |
| CN201549438U (en) | Epoxy-enclosed contact arm sleeve | |
| CN215721195U (en) | Filling valve | |
| CN201757175U (en) | Tapered piece ring sealing device | |
| KR20160027659A (en) | Explosion proof type termination connection box | |
| CN201820656U (en) | Dynamic sealing part for high-voltage solid insulated switch | |
| CN203850708U (en) | Air cushion seal bolt for gas insulated switchgear | |
| CN217422306U (en) | Sealing structure of safety valve | |
| CN214798558U (en) | Gas insulation switch shell | |
| CN105952895A (en) | Sealing joint | |
| CN211480732U (en) | Aerify cubical switchboard's solid utmost point post that seals | |
| CN219393067U (en) | Composite insulation cap for electromagnetic pulse simulator | |
| CN103887729A (en) | Cushion seal bolt for gas insulated switchgear | |
| CN218415517U (en) | Reusable pressure release device for inflatable cabinet | |
| CN211315089U (en) | Fluororubber sealing gasket and low-voltage sleeve sealing structure of large transformer of nuclear power station | |
| CN216955026U (en) | Explosion-proof pressure relief device for vacuum pipeline | |
| CN220286401U (en) | Flange for gas-insulated switch | |
| CN116706756B (en) | GIS with high leakproofness connecting piece | |
| CN215371017U (en) | Butterfly valve sealing ring with widened sealing surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |