CN204437352U - Split type seal valve seat structure - Google Patents
Split type seal valve seat structure Download PDFInfo
- Publication number
- CN204437352U CN204437352U CN201520028196.5U CN201520028196U CN204437352U CN 204437352 U CN204437352 U CN 204437352U CN 201520028196 U CN201520028196 U CN 201520028196U CN 204437352 U CN204437352 U CN 204437352U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- sealing ring
- main body
- lower sealing
- described valve
- 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
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a kind of split type seal valve seat structure, it is characterized in that: split type seal valve seat structure comprises valve seat upper sealing ring and valve seat lower sealing ring; Valve seat upper sealing ring comprises block on valve seat upper sealing ring main body and valve seat; Valve seat lower sealing ring comprises valve seat lower sealing ring top end main body and valve seat lower sealing ring lower end main body, valve seat lower sealing ring top end main body one side end is provided with block under valve seat, be configured for the holding space holding rubber valve seat after valve seat upper sealing ring and valve seat lower sealing ring fasten, rubber valve seat is placed in holding space and is gripped by block under block on valve seat and valve seat; Valve seat lower sealing ring top end main body is provided with O RunddichtringO I near between one end and valve body of valve body, and valve seat lower sealing ring lower end main body is provided with O RunddichtringO II near between one end and valve body of valve body.The utility model adopts split type seal ring to wrap up rubber valve seat and Double seal ring sealing, substantially increases the sealing stability of ball valve, reliability and working life thereof etc.
Description
Technical field
The utility model relates to a kind of ball valve sealing structure, specifically a kind of split type seal valve seat structure.
Background technique
At present, ball valve of the prior art uses monomer-type seat ring mostly, and when pressure increase, seal valve seat often flies out situation, causes seal failure; In addition, monomer-type seal valve seat only between optional valve seat and sphere face seal form seal, can burning into sand be produced like this between valve seat and sphere and the situation of low-disturbance power.Due to the existence of above-mentioned technological deficiency, greatly reduce the usability of ball valve, be therefore necessary to provide a kind of sealing configuration to solve the problem.
Model utility content
Easily fly out according to the seal valve seat of above-mentioned proposition, the technical problem of burning into sand easily and between sphere, and provide a kind of split type seal valve seat structure.The utility model mainly utilizes split type valve base sealing ring to wrap rubber valve seat, adopts Double seal ring and seal gease hand-hole simultaneously, thus plays the effect such as sealing stability, reliability and working life improving ball valve.
The technological means that the utility model adopts is as follows:
A kind of split type seal valve seat structure, is characterized in that:
Described split type seal valve seat structure comprises valve seat upper sealing ring and valve seat lower sealing ring;
Described valve seat upper sealing ring comprises valve seat upper sealing ring main body and is arranged at described valve seat upper sealing ring main body block on the valve seat of a side end of spheroid, described valve seat upper sealing ring main body is fixed with spring fixed seat near the side of valve body, is fixed with spring between described spring fixed seat and described valve body;
Described valve seat lower sealing ring comprises valve seat lower sealing ring top end main body and valve seat lower sealing ring lower end main body, the chamber for injecting seal gease is provided with between described valve seat lower sealing ring top end main body and described valve seat lower sealing ring lower end main body, described valve seat lower sealing ring top end main body is block under a side end of described spheroid is provided with valve seat, the holding space holding rubber valve seat is configured for after described valve seat upper sealing ring and described valve seat lower sealing ring fasten, described rubber valve seat is placed in described holding space and is gripped by block under block on described valve seat and described valve seat, the end of described rubber valve seat is butted on described spheroid, described valve seat lower sealing ring top end main body is provided with O RunddichtringO I near between one end of described valve body and described valve body, and described valve seat lower sealing ring lower end main body is provided with O RunddichtringO II near between one end of described valve body and described valve body.
Rubber valve seat encases by above-mentioned valve seat upper sealing ring and valve seat lower sealing ring, prevents from being extruded by rubber valve seat after high pressure flying out; If fluid is by after valve seat upper sealing ring seepage, spring structure is after pressure enters, by opposition to spheroid direction pressure valve seat upper sealing ring, rubber valve seat is made to press to spheroid (even if fluid enters in cavity, flow downstream also can be stoped to continue to reveal); The double sealing structure of dual O RunddichtringO makes the better tightness of ball valve; Inject seal gease, seal gease can be attached on spheroid and prevent sandstone wearing and tearing rubber valve seat, and in emergency circumstances can leak by manual greasing Basilar artery, and conventional ball valve is without this structure.
Further, described rubber valve seat is butted on the described end surface of described spheroid is arc surface.The arc surface of rubber valve seat and spheroid are point cantact, and conventional ball valve is face contact, easy burning into sand, and when stressed identical springs pressure, the area of contact of point is little, and pressure is large, good sealing effect.
Further, after described rubber valve seat grips by block under block and described valve seat on described valve seat, the clearance space for described rubber valve seat resiliently deformable between described rubber valve seat and described valve seat lower sealing ring top end main body, is also provided with.Clearance space, for rubber valve seat resiliently deformable, can protect valve seat, and conventional ball valve is without this space.
Further, described O RunddichtringO II is isolated between described valve seat lower sealing ring lower end main body and described valve body by the block be arranged in the main body of described valve seat lower sealing ring lower end, and described block is inclined-plane near the side of described O RunddichtringO II.Block band gradient (as shown in Fig. 2-1) is different from traditional structure forms (as shown in Fig. 2-2), and when by high pressure, O RunddichtringO can be close on inclined-plane, and the O RunddichtringO of conventional valve is easily extruded damage, causes seal failure.
Further, the upper end of described valve seat upper sealing ring main body and described valve body contact is also provided with the seal groove for holding seal ring.
Comparatively prior art is compared, and structure of the present utility model is mainly split type valve base sealing ring can wrap rubber valve seat, makes it fly out, and improves ball valve reliability.Rubber valve seat adopts linear sealing form, not easily burning into sand.The utility model can utilize reaction force to make rubber valve seat press to spheroid in a leak state, blocks and continues to leak, and also can realize sealing when upstream and downstream has pressure simultaneously.Adopt Double seal ring between split type seal valve seat entirety and valve body, sealing effect is better, and valve seat lower sealing ring is provided with seal gease Injection Space, improves sealing effect.
The utility model substantially increases sealing stability, the reliability and working life etc. of ball valve, and the utility model extensively can be promoted in ball valve application for the foregoing reasons.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2-1 is A place enlarged view in Fig. 1 (structural representation of the bevelled block of O RunddichtringO band).
Fig. 2-2 is structural representations of O RunddichtringO block in prior art.
In figure: 1, block 23, valve seat lower sealing ring lower end main body 24, seal gease 25, O RunddichtringO I time block 26, block 27, inclined-plane 28, O RunddichtringO II 29, O RunddichtringO I 3, rubber valve seat 31, end 4, spheroid 5, valve body under block 13, seal groove 2, valve seat lower sealing ring 21, valve seat lower sealing ring top end main body 22, valve seat on valve seat upper sealing ring 11, valve seat upper sealing ring main body 12, valve seat.
Embodiment
As shown in Figure 1, a kind of split type seal valve seat structure, described split type seal valve seat structure comprises valve seat upper sealing ring 1 and valve seat lower sealing ring 2;
Described valve seat upper sealing ring 1 comprises valve seat upper sealing ring main body 11 and is arranged at described valve seat upper sealing ring main body 11 block 12 on the valve seat of a side end of spheroid 4, and the upper end that described valve seat upper sealing ring main body 11 contacts with valve body 5 is also provided with the seal groove 13 for holding seal ring; Described valve seat upper sealing ring main body 11 is fixed with spring fixed seat 61 near the side of valve body 5, is fixed with spring 6 between described spring fixed seat 61 and described valve body 5; Spring 6 can ensure when ball valve leaks, and after pressure enters, makes rubber valve seat 3 press to spheroid 4 by opposition, even if fluid enters in cavity, flow downstream also can be stoped to continue to reveal.
Described valve seat lower sealing ring 2 comprises valve seat lower sealing ring top end main body 21 and valve seat lower sealing ring lower end main body 23, the chamber for injecting seal gease 24 is provided with between described valve seat lower sealing ring top end main body 21 and described valve seat lower sealing ring lower end main body 23, inject seal gease herein, seal gease can be attached on spheroid 4 and prevent sandstone wearing and tearing rubber valve seat 3, and conventional ball valve is without this structure, described valve seat lower sealing ring top end main body 21 is block 22 under a side end of described spheroid 4 is provided with valve seat, the holding space holding rubber valve seat 3 is configured for after described valve seat upper sealing ring 1 and described valve seat lower sealing ring 2 fasten, described rubber valve seat 3 is placed in described holding space and is gripped by block 22 under block 12 on described valve seat and described valve seat, prevent from being extruded by rubber valve seat 3 after high pressure flying out, the end 31 of described rubber valve seat 3 is butted on described spheroid 4, the surface, described end 31 that described rubber valve seat 3 is butted on described spheroid 4 is arc surface, rubber valve seat 3 and spheroid 4 are point cantact, and conventional ball valve is face contact, easy burning into sand, when stressed identical springs pressure, the area of contact of point is little, pressure is large, good sealing effect.After described rubber valve seat 3 grips by block 22 under block 12 and described valve seat on described valve seat, between described rubber valve seat 3 and described valve seat lower sealing ring top end main body 21, be also provided with the clearance space for described rubber valve seat 3 resiliently deformable.Leave clearance space herein for rubber valve seat 3 resiliently deformable, can valve seat be protected, and conventional ball valve is without this space.
Described valve seat lower sealing ring top end main body 21 is provided with O RunddichtringO I 29 near between one end and described valve body 5 of described valve body 5, described O RunddichtringO I 29 lower end is O RunddichtringO I time block 25, O RunddichtringO I time block 25 is the boss for placing described O RunddichtringO I 29 protruding from described valve seat lower sealing ring top end main body 21 in fact, described valve seat lower sealing ring lower end main body 23 is provided with O RunddichtringO II 28 near between one end and described valve body 5 of described valve body 5, described O RunddichtringO II 28 is isolated between described valve seat lower sealing ring lower end main body 23 and described valve body 5 by the block 26 be arranged in described valve seat lower sealing ring lower end main body 23, described block 26 is inclined-plane 27 (as shown in Fig. 2-1) near the side of described O RunddichtringO II 28.The design on the inclined-plane 27 of block 26 is different from traditional structure forms, and when by high pressure, O type circle can be close on inclined-plane, and the O type circle of conventional valve is easily extruded damage (as shown in Fig. 2-2), causes seal failure.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and model utility design thereof and replace or change, all should be encompassed within protection domain of the present utility model.
Claims (5)
1. a split type seal valve seat structure, is characterized in that:
Described split type seal valve seat structure comprises valve seat upper sealing ring (1) and valve seat lower sealing ring (2);
Described valve seat upper sealing ring (1) comprises valve seat upper sealing ring main body (11) and is arranged at described valve seat upper sealing ring main body (11) block (12) on the valve seat of a side end of spheroid (4), described valve seat upper sealing ring main body (11) is fixed with spring fixed seat (61) near the side of valve body (5), is fixed with spring (6) between described spring fixed seat (61) and described valve body (5);
Described valve seat lower sealing ring (2) comprises valve seat lower sealing ring top end main body (21) and valve seat lower sealing ring lower end main body (23), the chamber for injecting seal gease (24) is provided with between described valve seat lower sealing ring top end main body (21) and described valve seat lower sealing ring lower end main body (23), described valve seat lower sealing ring top end main body (21) is block (22) under a side end of described spheroid (4) is provided with valve seat, the holding space holding rubber valve seat (3) is configured for after described valve seat upper sealing ring (1) and described valve seat lower sealing ring (2) fasten, described rubber valve seat (3) is placed in described holding space and is gripped by block (22) under block (12) on described valve seat and described valve seat, the end (31) of described rubber valve seat (3) is butted on described spheroid (4), described valve seat lower sealing ring top end main body (21) is provided with O RunddichtringO I (29) near between one end and described valve body (5) of described valve body (5), and described valve seat lower sealing ring lower end main body (23) is provided with O RunddichtringO II (28) near between one end and described valve body (5) of described valve body (5).
2. split type seal valve seat structure according to claim 1, is characterized in that: the surface, described end (31) that described rubber valve seat (3) is butted on described spheroid (4) is arc surface.
3. split type seal valve seat structure according to claim 1, it is characterized in that: after described rubber valve seat (3) grips by block (22) under block (12) and described valve seat on described valve seat, between described rubber valve seat (3) and described valve seat lower sealing ring top end main body (21), be also provided with the clearance space for described rubber valve seat (3) resiliently deformable.
4. split type seal valve seat structure according to claim 1, it is characterized in that: described O RunddichtringO II (28) is isolated between described valve seat lower sealing ring lower end main body (23) and described valve body (5) by the block (26) be arranged on described valve seat lower sealing ring lower end main body (23), described block (26) is inclined-plane (27) near the side of described O RunddichtringO II (28).
5. split type seal valve seat structure according to claim 1, is characterized in that: the upper end that described valve seat upper sealing ring main body (11) contacts with described valve body (5) is also provided with the seal groove (13) for holding seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028196.5U CN204437352U (en) | 2015-01-15 | 2015-01-15 | Split type seal valve seat structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028196.5U CN204437352U (en) | 2015-01-15 | 2015-01-15 | Split type seal valve seat structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204437352U true CN204437352U (en) | 2015-07-01 |
Family
ID=53605221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520028196.5U Expired - Fee Related CN204437352U (en) | 2015-01-15 | 2015-01-15 | Split type seal valve seat structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204437352U (en) |
-
2015
- 2015-01-15 CN CN201520028196.5U patent/CN204437352U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204437352U (en) | Split type seal valve seat structure | |
| CN205781037U (en) | A kind of ultralow temperature dual-seal and lumen are from pressure relief ball valve | |
| CN201866315U (en) | Valve seat with dual-seal pair | |
| CN203023539U (en) | Floating ball valve | |
| CN203477427U (en) | Fireproof ball valve | |
| CN203500553U (en) | Valve seat of ball valve | |
| CN204387381U (en) | There is the elastic valve seat ball valve of compensate function | |
| CN202719176U (en) | Ball valve with elastic energy storage seal structure | |
| CN204127409U (en) | Ultralow temperature pilot operated safety valve | |
| CN102032389B (en) | Filler internal pressure self-sealing valve capable of forming self-energizing seal | |
| CN204647401U (en) | A kind of self tightening filler seal structure of ball seat | |
| CN205155176U (en) | Ocean high performance butterfly valve seal structure | |
| CN205155219U (en) | Gas valve | |
| CN204755996U (en) | Plane high temperature ball valve | |
| CN204900916U (en) | Shape rubber valve seat and use this rubber valve seat's split type seal receptacle preapres for an unfavorable turn of events | |
| CN204127378U (en) | Floating valve seat | |
| CN204127418U (en) | Oil field water injection pump safety valve | |
| CN203671012U (en) | Self-sealing valve preventing sealing part from losing elasticity | |
| CN204267807U (en) | A kind of valve inside metallic core | |
| CN203516890U (en) | Ultra-low-temperature vacuum protective valve | |
| CN208518871U (en) | A kind of valve rubber of anti-high pressure | |
| CN102672906A (en) | Piston structure for hot runner system control device | |
| CN202640706U (en) | Piston structure for hot runner system control device | |
| CN209569407U (en) | A kind of valve seal plug | |
| CN202629138U (en) | Fire protection assembly for valve seat of ball valve |
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: 20150701 Termination date: 20170115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |