CN204114215U - Piston type valve seat sealing ball valve - Google Patents
Piston type valve seat sealing ball valve Download PDFInfo
- Publication number
- CN204114215U CN204114215U CN201420568186.6U CN201420568186U CN204114215U CN 204114215 U CN204114215 U CN 204114215U CN 201420568186 U CN201420568186 U CN 201420568186U CN 204114215 U CN204114215 U CN 204114215U
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- valve seat
- valve
- sealing
- spheroid
- valve body
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Abstract
The utility model relates to a kind of ball valve, particularly a kind of piston type valve seat sealing ball valve.The utility model provides following technological scheme: a kind of piston type valve seat sealing ball valve, include valve body, be located at the medium runner on valve body and the connection chamber with medium runner conducting, spheroid is provided with in connection chamber, valve body is provided with and extends in connection chamber and the valve rod linked with spheroid, valve seat is provided with between medium runner and spheroid, Sealing is provided with between valve seat and spheroid, valve seat includes and compresses end with the sealed end of ball seal and with the elasticity that valve body is conflicted, Sealing is installed on the sealed end place of valve seat, elasticity compresses between end with valve body and is provided with and compresses spring, sealed end and elasticity compress between end and are provided with at least one sealing block, both lateral sides valve seat being positioned at sealing block is respectively equipped with dust preventing component.Adopt technique scheme, provide a kind of good airproof performance, anti-clamping stagnation, the simple piston type valve seat sealing ball valve of structure.
Description
Technical field
The utility model relates to a kind of ball valve, particularly a kind of piston type valve seat sealing ball valve.
Background technique
Ball valve is that spheroid is driven by valve rod, and around the valve that the axis of valve rod rotates.Be mainly used in blocking or connect the medium in pipeline, also can be used for the regulating and control of fluid.Traditional ball valve mainly includes valve body, and be provided with in valve body and drive by valve rod the spheroid rotated, spheroid both sides are provided with the valve seat coordinated with ball seal.In use, because pressure medium is to the impact of valve seat, the sealing between valve seat and spheroid can be subject to certain impact, thus causes leaking between valve seat and spheroid, and valve body cannot normally be used.
Summary of the invention
For the deficiency that prior art exists, the utility model provides a kind of good airproof performance, anti-clamping stagnation, the simple piston type valve seat sealing ball valve of structure.
For achieving the above object, the utility model provides following technological scheme: a kind of piston type valve seat sealing ball valve, include valve body, be located at the medium runner on valve body and the connection chamber with medium runner conducting, spheroid is provided with in connection chamber, valve body is provided with and extends in connection chamber and the valve rod linked with spheroid, valve seat is provided with between medium runner and spheroid, Sealing is provided with between valve seat and spheroid, it is characterized in that: described valve seat includes and compresses end with the sealed end of ball seal and with the elasticity that valve body is conflicted, Sealing is installed on the sealed end place of valve seat, elasticity compresses between end with valve body and is provided with and compresses spring, sealed end and elasticity compress between end and are provided with at least one sealing block, both lateral sides valve seat being positioned at sealing block is respectively equipped with dust preventing component.
Adopt technique scheme, by valve seat being set to sealed end and elasticity compresses end, and the Sealing of ball seal is located at sealed end place, elasticity compress end place be arranged at valve body conflict compress spring, in use, all the time have towards the elasticity conflict power of spheroid between valve seat and valve body, sealing between Sealing on valve seat and spheroid is protected, can not occur that the installation deviation impact of deviation or valve seat seals due to the mounting point of spheroid, improve sealability, and structure is simple; The setting of dust preventing component is then have influence on sealing between valve seat and valve body to prevent the particle in medium from entering into sealing block place.
The utility model is set to further: sealing block is graphite grazing block, described medium runner and conducting place of connection chamber offer step hole, one end of this step hole and connection chamber conducting is hold greatly, the other end is small end, the sealed end of described valve seat is in the large end of step hole, elasticity compresses end and is in the small end of step hole, described sealing block is provided with two, between one of them interface being in the large end of step hole and small end and the sealed end of valve seat, another elasticity being located at valve seat compresses between end and the inwall of step hole small end.
Adopt technique scheme, it is simple that structure is set like this, easy for installation, and good airproof performance.
The utility model is further set to: dust preventing component includes the viton seal ring be located at respectively between valve seat and step hole.
Adopt technique scheme, such setup cost is cheap, replacing is convenient.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the I portion enlarged diagram of Fig. 1;
Fig. 3 is the partial structurtes schematic diagram of valve body in the utility model embodiment.
Embodiment
A kind of piston type valve seat sealing ball valve as shown in Fig. 1-Fig. 3, include valve body 1, be located at the medium runner 11 on valve body 1 and the connection chamber 12 with medium runner 11 conducting, spheroid 2 is provided with in connection chamber 12, valve body 1 is provided with and extends in connection chamber 12 and the valve rod 3 linked with spheroid 2, valve seat 4 is provided with between medium runner 11 and spheroid 2, Sealing 5 is provided with between valve seat 4 and spheroid 2, valve seat 4 includes the sealed end 41 that seals with spheroid 2 and compresses end 42 with the elasticity that valve body 1 is conflicted, Sealing 5 is installed on sealed end 41 place of valve seat 4, elasticity compresses to be provided with between end 42 and valve body 1 and compresses spring 6, sealed end 41 and elasticity compress between end 42 and are provided with at least one sealing block 7, both lateral sides valve seat 4 being positioned at sealing block 7 is respectively equipped with dust preventing component 8.In such scheme, by valve seat 4 being set to sealed end 41 and elasticity compresses end 42, and the Sealing 5 of spheroid 2 sealing is located at sealed end 41 place, elasticity compress end 42 place be arranged at valve body 1 conflict compress spring 6, in use, all the time have towards the elasticity conflict power of spheroid 2 between valve seat 4 and valve body 1, sealing between Sealing 5 on valve seat 4 and spheroid 2 is protected, can not occur that the installation deviation impact of deviation or valve seat 4 seals due to the mounting point of spheroid 2, improve sealability, and structure is simple; The setting of dust preventing component 8 is then have influence on sealing between valve seat 4 and valve body 1 to prevent the particle in medium from entering into sealing block 7 place.
In the utility model embodiment, because valve seat 4 in use can be in valve body 1 mobile, in order to ensure the sealing between valve seat 4 and valve body 1, sealing block 7 is graphite grazing block, and the impacting force that graphite grazing block is subject to is larger, and its sealing effect is better.Medium runner 11 offers step hole 9 with conducting place of connection chamber 12, this step hole 9 is hold 91 greatly with one end of connection chamber 12 conducting, the other end is small end 92, the sealed end 41 of valve seat 4 is in the large end 91 of step hole 9, elasticity compresses end 42 and is in the small end 92 of step hole 9, sealing block 7 in the utility model embodiment is provided with two, between one of them interface 93 being in the large end 91 of step hole 9 and small end 92 and the sealed end 41 of valve seat 4, another elasticity being located at valve seat 4 compresses between the inwall of end 42 and step hole 9 small end 92.Certainly, it should be noted that, the quantity of sealing block 7 can be determined according to design, and three or four is also feasible.
For the ease of installing and changing, dust preventing component 8 includes the viton seal ring be located at respectively between valve seat 4 and step hole 9.
Claims (3)
1. a piston type valve seat sealing ball valve, include valve body, be located at the medium runner on valve body and the connection chamber with medium runner conducting, spheroid is provided with in connection chamber, valve body is provided with and extends in connection chamber and the valve rod linked with spheroid, valve seat is provided with between medium runner and spheroid, Sealing is provided with between valve seat and spheroid, it is characterized in that: described valve seat includes and compresses end with the sealed end of ball seal and with the elasticity that valve body is conflicted, Sealing is installed on the sealed end place of valve seat, elasticity compresses between end with valve body and is provided with and compresses spring, sealed end and elasticity compress between end and are provided with at least one sealing block, both lateral sides valve seat being positioned at sealing block is respectively equipped with dust preventing component.
2. piston type valve seat sealing ball valve according to claim 1, it is characterized in that: described sealing block is graphite grazing block, described medium runner and conducting place of connection chamber offer step hole, one end of this step hole and connection chamber conducting is hold greatly, the other end is small end, the sealed end of described valve seat is in the large end of step hole, elasticity compresses end and is in the small end of step hole, described sealing block is provided with two, between one of them interface being in the large end of step hole and small end and the sealed end of valve seat, another elasticity being located at valve seat compresses between end and the inwall of step hole small end.
3. piston type valve seat sealing ball valve according to claim 1 and 2, is characterized in that: described dust preventing component includes the viton seal ring be located at respectively between valve seat and step hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568186.6U CN204114215U (en) | 2014-09-29 | 2014-09-29 | Piston type valve seat sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568186.6U CN204114215U (en) | 2014-09-29 | 2014-09-29 | Piston type valve seat sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204114215U true CN204114215U (en) | 2015-01-21 |
Family
ID=52331527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420568186.6U Active CN204114215U (en) | 2014-09-29 | 2014-09-29 | Piston type valve seat sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204114215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565982A (en) * | 2021-07-31 | 2021-10-29 | 浙江祺隆阀门有限公司 | High-sealing ball valve for pulverized coal |
-
2014
- 2014-09-29 CN CN201420568186.6U patent/CN204114215U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565982A (en) * | 2021-07-31 | 2021-10-29 | 浙江祺隆阀门有限公司 | High-sealing ball valve for pulverized coal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |