CN204459257U - A kind of triple seal valve seat - Google Patents
A kind of triple seal valve seat Download PDFInfo
- Publication number
- CN204459257U CN204459257U CN201420868792.XU CN201420868792U CN204459257U CN 204459257 U CN204459257 U CN 204459257U CN 201420868792 U CN201420868792 U CN 201420868792U CN 204459257 U CN204459257 U CN 204459257U
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- Prior art keywords
- ring
- seal
- valve seats
- shaped valve
- groove
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Abstract
The utility model relates to a kind of triple seal valve seat, comprises ring-shaped valve seats body, and ring-shaped valve seats inner body wall inclined-plane is sealing surface, and ring-shaped valve seats body offers the first seal groove and the second seal groove; First seal groove is positioned at below the second seal groove, and the first seal groove is connected with the second seal groove; For the first seal groove assembling rubber triangular sealing ring, this rubber delta seal ring cross-section is triangular in shape, and an one angle and sealing surface fit; Be embedded plastic seal ring for the second seal groove, this plastic seal ring cross-section is at right angles trapezoidal, and its inclined-plane and sealing surface are fitted; Plastic seal ring contacts with rubber triangular sealing ring face, for support rubber triangular sealing ring.The utility model adopts rubber triangular sealing ring, embedded plastic seal ring, metal to metal triple seal structure, greatly improves the working life of sealing reliability and valve; And the larger elastic deformation energy of the triangular sealing ring of primary seal makes up the distortion in welding process, reduce the probability of valve leaks.
Description
Technical field
The utility model belongs to industrial valve field, is specifically related to a kind of ball seat, particularly relates to a kind of triple seal ball seat.
Background technique
The soft seal fixing ball valve of current routine, usual employing a slice insert seal ring valve seat construction, seal ring material is generally PTFE, the plastics such as NYLON, seal ring is first embedded into ring-shaped valve seats body by rolling technology, then processes sealing surface, finally grinds, its assembling manufacturing technique is more complicated, higher to ball body of valve surface roughness requirements.
Under normal circumstances, due to welding procedure, weld yielding, valve through the normal phenomenon occurring leaking, and is reprocessed and is needed the weld seam by valve body and valve gap to cut open after having welded, and it reprocesses difficulty and cost is high; Use O type circle seal valve seat, the elastic deformation energy seal welding distortion that O type circle is larger, improve and be once welded into power, but rubber o-ring is easily by iron filings, granule foreign damages, and does not carry out the easy aged deterioration of maintaining for a long time, thus causes shorten its working life.In addition, when run into the urgency such as to catch fire time, the problem of leakage can be run into unavoidably.
Therefore, in order to solve the problem, provide a kind of triple seal valve seat to be the problem that the utility model will be studied.
Summary of the invention
The utility model object is to provide a kind of triple seal valve seat, adopts embedded plastic seal ring valve seat to solve prior art, because welding deformation causes valve leak, the problem such as difficult in maintenance; And adopt O type circle seal valve seat, easily damaged by granule foreigns such as iron filings, the problems such as easy aged deterioration.
For achieving the above object, the technical solution adopted in the utility model is: a kind of triple seal valve seat, comprises ring-shaped valve seats body, and described ring-shaped valve seats inner body wall inclined-plane is sealing surface, and described ring-shaped valve seats body offers the first seal groove and the second seal groove; Described first seal groove is positioned at below described second seal groove, and described first seal groove is connected with described second seal groove;
In the assembled condition, be equipped with rubber triangular sealing ring for described first seal groove, the cross section of this rubber triangular sealing ring is triangular in shape, and rubber triangular sealing ring angle and described sealing surface fit; Be embedded with plastic seal ring for described second seal groove, the cross section of this plastic seal ring is at right angles trapezoidal, and the inclined-plane of plastic seal ring and described sealing surface are fitted; Described plastic seal ring contacts with described rubber triangular sealing ring face, and described plastic seal ring supports described rubber triangular sealing ring.
Related content in technique scheme is explained as follows:
1, in such scheme, in described ring-shaped valve seats body, at least one greasing passage is also provided with; Described greasing passage end is connected with the greasing hole be opened on ring-shaped valve seats body, and the other end leads to described ball body of valve.
2, in such scheme, three angles of described rubber triangular sealing ring are fillet.
3, in such scheme, described ring-shaped valve seats body also offers an O type groove, a described O type slot on the outer wall of described ring-shaped valve seats body, and is positioned at the inner side in described greasing hole, is embedded with an O type circle for a described O type groove.
4, in such scheme, described ring-shaped valve seats body also offers the 2nd O type groove, described 2nd O type slot on the outer wall of described ring-shaped valve seats body, and is positioned at the outside in described greasing hole, is embedded with the 2nd O type circle for described 2nd O type groove.
5, in such scheme, described plastic seal ring contacts the face of essence corresponding to the long base of plastic seal ring with the face of described rubber triangular sealing ring and the face corresponding to rubber triangular sealing ring three arm of angle overlaps.
6, in such scheme, also comprise a seating spring, the effect end of this seating spring acts on described ring-shaped valve seats body, forces described ring-shaped valve seats body to carry described rubber triangular sealing ring and press to ball body of valve together with described plastic seal ring.
Utility model works principle is: a kind of triple seal valve seat of the present utility model, and adopt rubber triangular sealing ring as primary seal, Embedded plastic seal ring is as auxiliary seal.By the first seal groove of the trigonometric form of processing place uniqueness on ring-shaped valve seats body and the second seal groove of right-angled trapezium, be assembled in the first seal groove by the rubber triangular sealing ring of high hardness, rubber delta seal encloses main seal; Then plastic seal ring roll extrusion entered in the second seal groove, plastic seal ring plays auxiliary seal, supports rubber triangular sealing ring simultaneously and prevents it to be extruded in switching process.In operating conditions, due to seating spring pretension, rubber triangular sealing ring contacts with ball body of valve with plastic seal ring simultaneously, realizes double seal; At the emergency work condition that catches fire, ring-shaped valve seats body contacts the sealing realizing metal to metal with ball body of valve.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1, the utility model adopts rubber triangular sealing ring, embedded plastic seal ring, metal to metal triple seal structure, greatly improves the working life of sealing reliability and valve.
2, the utility model triple seal valve seat applications is to being entirely welded and fixed on ball valve, and the elastic deformation energy that the triangular sealing ring of primary seal is larger makes up the distortion in welding process, reduces the probability of valve leaks, effectively improves fully welded valve up-to-standard rate.
3, the utility model also comprises at least one greasing passage, in greasing passage, inject lubricating grease, can not only lubricate ball body of valve, can also lubricate the O type circle and the 2nd O type circle that are positioned at both sides, greasing hole, slow down the rotten aging of O type circle.
Accompanying drawing explanation
Accompanying drawing 1 is the sectional view of the valve with triple seal valve seat in the utility model embodiment;
Accompanying drawing 2 is the partial enlarged drawing of triple seal valve seat part in the utility model embodiment.
In above accompanying drawing: 1, ring-shaped valve seats body; 2, the first seal groove; 3, the second seal groove; 4, rubber triangular sealing ring; 5, plastic seal ring; 6, greasing passage; 60, greasing hole; 7, an O type groove; 8, an O type circle; 9, the 2nd O type groove; 10, the 2nd O type circle; 11, ball body of valve; 12, seating spring; 13, greasing mouth; 14, runner.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: a kind of triple seal valve seat
See accompanying drawing 1-2, in the present embodiment, a kind of triple seal valve seat, comprises ring-shaped valve seats body 1, and described ring-shaped valve seats body 1 inwall inclined-plane is sealing surface, and described ring-shaped valve seats body 1 offers the first seal groove 2 and the second seal groove 3.Described first seal groove 2 is positioned at below described second seal groove 3, and described first seal groove 2 is connected with described second seal groove 3.
See accompanying drawing 1, for the state of valve opening, in the assembled condition, rubber triangular sealing ring 4 is equipped with for described first seal groove 2, the cross section of this rubber triangular sealing ring 4 is equilateral triangle, three angles of equilateral triangle are fillet, and rubber triangular sealing ring 4 angle and described sealing surface fit, i.e. corresponding to the angle of rubber triangular sealing ring 4, limit and sealing surface are in same plane.Be embedded with plastic seal ring 5 for described second seal groove 3, the cross section of this plastic seal ring 5 is at right angles trapezoidal, and the inclined-plane of plastic seal ring 5 and described sealing surface are fitted, and namely the inclined-plane of plastic seal ring 5 and sealing surface are in same plane.Described plastic seal ring 5 contacts with described rubber triangular sealing ring 4, and described plastic seal ring 5 supports described rubber triangular sealing ring 4.
Also be provided with a few greasing passage 6 in described ring-shaped valve seats body 1, this greasing passage 6 one end is communicated with the greasing hole 60 be opened on ring-shaped valve seats body 1, and the other end leads to described ball body of valve.Wherein, this greasing hole 60 is opened on ring-shaped valve seats body 1 upper surface.
Described ring-shaped valve seats body 1 also offers an O type groove 7, a described O type groove 7 is positioned on the outer wall of described ring-shaped valve seats body 1, and is positioned at the inner side in described greasing hole 60, is embedded with an O type circle 8 for a described O type groove 7; Described ring-shaped valve seats body 1 also offers the 2nd O type groove 9, described 2nd O type groove 9 is positioned on the outer wall of described ring-shaped valve seats body 1, and is positioned at the outside in described greasing hole 60, is embedded with the 2nd O type circle 10 for described 2nd O type groove 9.Namely described greasing hole 60 is between the first O type groove 7 and the 2nd O type groove 9.When injecting lubricating grease from greasing mouth 13 along greasing hole 60 in greasing passage 6, then lubricating grease can lubricate ball body of valve 11, can also lubricate to O type circle 8 and a 2nd O type circle 10.
Introduce principle and the assemble flow of the present embodiment below: a kind of triple seal valve seat of the present embodiment, by the first seal groove 2 and the second seal groove 3 of processing place uniqueness on ring-shaped valve seats body 1, the rubber triangular sealing ring 4 of high hardness is assembled in the first seal groove 2, then plastic seal ring 5 roll extrusion is entered the second seal groove 3, plastic seal ring 5 plays auxiliary seal, prevents rubber triangular sealing ring 4 to be extruded in switching process simultaneously.In operating conditions, due to seating spring 12 pretension, rubber triangular sealing ring 4 contacts with ball body of valve 11 with plastic seal ring 5 simultaneously, realizes double seal; At the emergency work condition that catches fire, ring-shaped valve seats body 1 and ball body of valve 11 realize the sealing of metal to metal.That is, a kind of triple seal valve seat of the present utility model, adopts rubber triangular sealing ring 4 as primary seal, adopts Embedded plastic seal ring 5 as auxiliary seal, in urgency of catching fire, the hard sealing that ring-shaped valve seats body 1 and ball body of valve 11 realize metal to metal can also be enabled.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (7)
1. a triple seal valve seat, comprises ring-shaped valve seats body (1), and described ring-shaped valve seats body (1) inwall inclined-plane is sealing surface, it is characterized in that: described ring-shaped valve seats body (1) offers the first seal groove (2) and the second seal groove (3); Described first seal groove (2) is positioned at described second seal groove (3) below, and described first seal groove (2) is connected with described second seal groove (3);
In the assembled condition, be equipped with rubber triangular sealing ring (4) for described first seal groove (2), the cross section of this rubber triangular sealing ring (4) is triangular in shape, and an angle of rubber triangular sealing ring (4) and described sealing surface fit; Be embedded with plastic seal ring (5) for described second seal groove (3), the cross section of this plastic seal ring (5) is at right angles trapezoidal, and the inclined-plane of plastic seal ring (5) and described sealing surface are fitted; Described plastic seal ring (5) contacts with described rubber triangular sealing ring (4) face, and described plastic seal ring (5) supports described rubber triangular sealing ring (4).
2. triple seal valve seat according to claim 1, is characterized in that: be also provided with at least one greasing passage (6) in described ring-shaped valve seats body (1); This greasing passage (6) one end is communicated with the greasing hole (60) be opened on ring-shaped valve seats body (1), and the other end leads to ball body of valve (11).
3. triple seal valve seat according to claim 1, is characterized in that: three angles of described rubber triangular sealing ring (4) are fillet.
4. triple seal valve seat according to claim 1, is characterized in that: one of them the face portion corresponding to three arms of angle of the face corresponding to trapezoidal long base and rubber triangular sealing ring (4) of described plastic seal ring (5) is overlapping.
5. triple seal valve seat according to claim 2, is characterized in that: described ring-shaped valve seats body (1) also offers an O type groove (7); A described O type groove (7) is positioned on the outer wall of described ring-shaped valve seats body (1), and is positioned at the inner side of described greasing hole (60); An O type circle (8) is embedded with for a described O type groove (7).
6. triple seal valve seat according to claim 2, is characterized in that: described ring-shaped valve seats body (1) also offers the 2nd O type groove (9); Described 2nd O type groove (9) is positioned on the outer wall of described ring-shaped valve seats body (1), and is positioned at the outside of described greasing hole (60); The 2nd O type circle (10) is embedded with for described 2nd O type groove (9).
7. triple seal valve seat according to claim 1, it is characterized in that: also comprise a seating spring (12), the effect end of this seating spring (12) acts on described ring-shaped valve seats body (1), forces described ring-shaped valve seats body (1) to press to ball body of valve (11) together with described rubber triangular sealing ring (4) and described plastic seal ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868792.XU CN204459257U (en) | 2014-12-31 | 2014-12-31 | A kind of triple seal valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868792.XU CN204459257U (en) | 2014-12-31 | 2014-12-31 | A kind of triple seal valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204459257U true CN204459257U (en) | 2015-07-08 |
Family
ID=53666143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420868792.XU Expired - Fee Related CN204459257U (en) | 2014-12-31 | 2014-12-31 | A kind of triple seal valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204459257U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587887A (en) * | 2016-03-14 | 2016-05-18 | 西诺威阀门控制（苏州）有限公司 | Sealing structure for valve seat and globe |
| WO2017161434A1 (en) * | 2016-03-22 | 2017-09-28 | Guide Valve Limited | Ball valve seat with triple seal |
| CN107842629A (en) * | 2017-12-01 | 2018-03-27 | 中亚阀门有限公司 | A kind of compound dual low temperature resistant ball valve |
| US10389968B1 (en) | 2018-03-16 | 2019-08-20 | Qindao Hisense Laser Display Co., Ltd. | Laser projection device |
| CN111427225A (en) * | 2019-01-10 | 2020-07-17 | 青岛海信激光显示股份有限公司 | Laser light source and laser projection equipment |
| US11570411B2 (en) | 2019-01-10 | 2023-01-31 | Hisense Laser Display Co., Ltd. | Laser light source and laser projection device |
| US11592145B2 (en) | 2019-01-10 | 2023-02-28 | Hisense Laser Display Co., Ltd. | Laser light source and laser projection device |
-
2014
- 2014-12-31 CN CN201420868792.XU patent/CN204459257U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587887A (en) * | 2016-03-14 | 2016-05-18 | 西诺威阀门控制（苏州）有限公司 | Sealing structure for valve seat and globe |
| WO2017161434A1 (en) * | 2016-03-22 | 2017-09-28 | Guide Valve Limited | Ball valve seat with triple seal |
| CN109073097A (en) * | 2016-03-22 | 2018-12-21 | 盖得阀有限公司 | Ball valve seat with triple seal |
| US20190107211A1 (en) * | 2016-03-22 | 2019-04-11 | Guide Valve Limited | Ball valve seat with triple seal |
| CN107842629A (en) * | 2017-12-01 | 2018-03-27 | 中亚阀门有限公司 | A kind of compound dual low temperature resistant ball valve |
| US10389968B1 (en) | 2018-03-16 | 2019-08-20 | Qindao Hisense Laser Display Co., Ltd. | Laser projection device |
| WO2019174162A1 (en) * | 2018-03-16 | 2019-09-19 | 青岛海信激光显示股份有限公司 | Laser projection device |
| CN111427225A (en) * | 2019-01-10 | 2020-07-17 | 青岛海信激光显示股份有限公司 | Laser light source and laser projection equipment |
| CN111427225B (en) * | 2019-01-10 | 2022-09-23 | 青岛海信激光显示股份有限公司 | Laser light source and laser projection equipment |
| US11570411B2 (en) | 2019-01-10 | 2023-01-31 | Hisense Laser Display Co., Ltd. | Laser light source and laser projection device |
| US11592145B2 (en) | 2019-01-10 | 2023-02-28 | Hisense Laser Display Co., Ltd. | Laser light source and laser projection device |
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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: 20150708 Termination date: 20191231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |