CN202580100U - Two-way hard seal half ball valve - Google Patents
Two-way hard seal half ball valve Download PDFInfo
- Publication number
- CN202580100U CN202580100U CN 201220219675 CN201220219675U CN202580100U CN 202580100 U CN202580100 U CN 202580100U CN 201220219675 CN201220219675 CN 201220219675 CN 201220219675 U CN201220219675 U CN 201220219675U CN 202580100 U CN202580100 U CN 202580100U
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- CN
- China
- Prior art keywords
- valve seat
- valve
- seat
- spheroid
- hard seal
- 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
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Abstract
The utility model discloses a two-way hard seal half ball valve, comprising a valve body, a ball body and a valve seat, wherein the ball body is arranged in the valve body; the valve seat is arranged between the ball body and the valve body; the valve seat is composed of an outer valve seat and an inner valve seat; the inner end face of the inner valve seat is adhesively fixed on the outer surface of the ball body; the outer end face of the inner valve seat is well matched with the inner end face of the outer valve seat; a valve seat pressure cover is further arranged on the outer end of the outer valve seat; and the outer valve seat is clamped on the valve body through the valve seat pressure cover. With the above structure, as the valve seat of the two-way hard seal half ball valve disclosed by the utility model is composed of the outer valve seat and the inner valve seat which are arranged in a separated mode, the outer valve seat is fixed with the valve body, and the inner valve seat is fixed with the ball body, the seal between the valve body and the ball body is realized by the hard seal between the outer valve seat and the inner valve seat; and as a result of such configuration, whether the ball body is scoured by a medium forwards or backwards, the favorable seal between the ball body and the valve body can be ensured, thus realizing the two-way hard seal between the ball body and the valve body.
Description
Technical field
The utility model relates to a kind of semispherical valve, is specifically related to a kind of two-way hard seal semispherical valve.
Background technique
Semispherical valve is a kind of valve commonly used, and its structure mainly comprises valve body, spheroid, valve seat, and spheroid is installed in the valve body, is equiped with valve seat between spheroid and the valve body, and the sealing between spheroid and the valve body realizes through valve seat in the valve working process.The valve seat of existing semispherical valve is generally integral structure formula valve seat, and generally is to be installed on the valve body, and its internal surface and outer surface of spheroid fit tightly realizes sealing; The valve of this structure; Overall tightness is relatively poor, and particularly when medium backward erosion spheroid, spheroid receives the scouring force effect that skew to a certain degree takes place easily; Particularly on the sealing surface that spheroid and valve seat fit, be easy to generate the space, thereby cause the valve overall sealing performance to descend.
Summary of the invention
To the deficiency of existing technology, the utility model provides a kind of overall tightness can better the two-way hard seal semispherical valve.
For realizing above-mentioned purpose, the utility model provides a kind of two-way hard seal semispherical valve, comprises valve body, spheroid, valve seat; Spheroid is installed in the valve body, is equiped with valve seat between spheroid and the valve body, and described valve seat is made up of outer seat and interior valve seat; The interior edge face of interior valve seat is fitted and is installed on the outer surface of spheroid; Join on the exterior edge face of interior valve seat and the interior edge face of outer seat top, and the outer end of said outer seat also is equiped with the valve seat gland, and outer seat is installed on the valve body through the valve seat gland.
The beneficial effect of the utility model is: adopt said structure, constitute because the valve seat in the utility model is outer seat and an interior valve seat by two split settings, and outer seat and valve body are fixed; Interior valve seat and spheroid are fixed, so the sealing between valve body and the spheroid realizes such structure setting through the hard sealing between outer seat and the interior valve seat; No matter medium is that forward washes away spheroid, or the backward erosion spheroid, can both guarantee the excellent sealing between spheroid and the valve body effectively; And then just realized that also spheroid cooperates with two-way hard seal between the valve body; Compare existing technology, the valve that the utility model provided, its overall sealing performance is better.
The utility model can further be set to also be equiped with preloading spring between exterior edge face and the valve seat gland of said outer seat.
Adopt said structure, set up described preloading spring and can further improve the sealability between outer seat and the interior valve seat.
The utility model also can further be set to described interior valve seat and be installed on the spheroid through screw, and described valve seat gland is installed on the valve body through screw.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the I portion enlarged view of Fig. 1.
Embodiment
Provided a kind of two-way hard seal semispherical valve like Fig. 1, shown in 2; Comprise valve body 1, spheroid 2, valve seat 3, spheroid 2 is installed in the valve body 1, is equiped with valve seat 3 between spheroid 2 and the valve body 1; Described valve seat 3 is made up of outer seat 31 and interior valve seat 32; The interior edge face 321 of interior valve seat 32 is fitted and is installed on spheroid 2 outer surfaces, and join with the interior edge face of outer seat 31 311 tops the exterior edge face 322 of interior valve seat 32, and the outer end of said outer seat 31 also is equiped with valve seat gland 4; And outer seat 31 is installed on the valve body 1 through valve seat gland 4, also is equiped with preloading spring 5 between the exterior edge face 312 of said outer seat 31 and the valve seat gland 4.Valve seat 32 is installed on the spheroid 2 through screw 6 in described, and described valve seat gland 4 is installed on the valve body 1 through screw 6.
Adopt said structure, constitute with interior valve seat 32 because the valve seat 3 in the utility model is outer seats 31 by two split settings, and outer seat 31 is fixing with valve body 1; Interior valve seat 32 is fixing with spheroid 2, so the sealing between valve body 1 and the spheroid 2 realizes such structure setting through the hard sealing between outer seat 31 and the interior valve seat 32; No matter medium is that forward washes away spheroid 2, or backward erosion spheroid 2, can both guarantee the excellent sealing between spheroid 2 and the valve body 1 effectively; And then just realized that also spheroid 2 cooperates with two-way hard seal between the valve body 1; Compare existing technology, the valve that the utility model provided, its overall sealing performance is better.
Claims (3)
1. a two-way hard seal semispherical valve comprises valve body, spheroid, valve seat, and spheroid is installed in the valve body; Be equiped with valve seat between spheroid and the valve body; It is characterized in that: described valve seat is made up of outer seat and interior valve seat, and the interior edge face of interior valve seat is fitted and is installed on the outer surface of spheroid, and join on the exterior edge face of interior valve seat and the interior edge face of outer seat top; The outer end of said outer seat also is equiped with the valve seat gland, and outer seat is installed on the valve body through the valve seat gland.
2. two-way hard seal semispherical valve according to claim 1 is characterized in that: also be equiped with preloading spring between the exterior edge face of said outer seat and the valve seat gland.
3. two-way hard seal semispherical valve according to claim 1 is characterized in that: valve seat is installed on the spheroid through screw in described, and described valve seat gland is installed on the valve body through screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219675 CN202580100U (en) | 2012-05-16 | 2012-05-16 | Two-way hard seal half ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219675 CN202580100U (en) | 2012-05-16 | 2012-05-16 | Two-way hard seal half ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202580100U true CN202580100U (en) | 2012-12-05 |
Family
ID=47249513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220219675 Expired - Fee Related CN202580100U (en) | 2012-05-16 | 2012-05-16 | Two-way hard seal half ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202580100U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151576A (en) * | 2016-08-26 | 2016-11-23 | 武汉大禹阀门股份有限公司 | A kind of self adaptation two-way floating valve seat construction |
| CN110686092A (en) * | 2019-10-30 | 2020-01-14 | 昆山维萨阀门股份有限公司 | Hemisphere metal seal fixed ball valve |
-
2012
- 2012-05-16 CN CN 201220219675 patent/CN202580100U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151576A (en) * | 2016-08-26 | 2016-11-23 | 武汉大禹阀门股份有限公司 | A kind of self adaptation two-way floating valve seat construction |
| CN106151576B (en) * | 2016-08-26 | 2019-02-19 | 武汉大禹阀门股份有限公司 | A kind of adaptive two-way floating valve seat construction |
| CN110686092A (en) * | 2019-10-30 | 2020-01-14 | 昆山维萨阀门股份有限公司 | Hemisphere metal seal fixed ball valve |
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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: 20121205 Termination date: 20160516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |