CN202171026U - Sealing structure for valve body and valve cover of valve ball - Google Patents
Sealing structure for valve body and valve cover of valve ball Download PDFInfo
- Publication number
- CN202171026U CN202171026U CN2011202261370U CN201120226137U CN202171026U CN 202171026 U CN202171026 U CN 202171026U CN 2011202261370 U CN2011202261370 U CN 2011202261370U CN 201120226137 U CN201120226137 U CN 201120226137U CN 202171026 U CN202171026 U CN 202171026U
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- valve
- valve body
- axial end
- valve gap
- annular groove
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Abstract
The utility model discloses a sealing structure for a valve body and a valve cover of a valve ball. The sealing structure comprises the valve body 20 and the valve cover 10 which are fixedly connected. The valve body 20 is provided with a first outer rotating surface 25 and a first shaft end face 26. The valve cover 10 is provided with a second outer rotating surface 13 and a second shaft end surface 15. A first annular groove 11 which is internally provided with an O-shaped sealing ring 12 dents on the second outer rotating surface 13 of the valve cover 10. The first shaft end face 26 of the valve body 20 extends to the second shaft end surface 15 of the valve cover 10 and forms a first step 24 and a second step 22. A second annular groove 21 which is internally provided with a graphite winding gasket 23 is formed between a first step 24 and a second step 22. According to the sealing structure, the graphite winding gasket is not affected or damaged when the valve body and the valve cover are detached and assembled. Furthermore a certain distance is kept between the valve body and the valve cover, and furthermore the valve body and the valve cover do not contact with each other. Damage of the O-shaped sealing ring caused by shearing of the graphite winding gasket is prevented. Simultaneously fusing of the O-shaped sealing ring in firing is prevented. The sealing structure performs a fireproof function and obtains an effect of double sealing.
Description
Technical field
The utility model relates to a kind of valve ball, the sealing configuration of particularly a kind of valve ball valve body and valve gap.
Background technique
When ball valve of the prior art seals the place of interconnecting of valve body and valve gap; Usually only adopt graphite to twine sheet and seal, it is simple in structure owing to the valve frequent movement, if set screw nut is not tightened; Leak easily; Not only pollute the environment, also possibly cause serious production accident, cause huge production loss.Chinese patent CN200820229366.6 discloses the seal arrangement of a kind of floating ball valve valve gap and valve body, and this structure provides a kind of floating ball valve with double sealing structure, though solved because the valve frequent movement; Nut is not tightened, and causes using the leakage that causes after a period of time, but does not establish the groove protection in the valve body; Graphite is frangible, and when the valve body valve gap assembled, the graphite wound gasket usually broke down; And O shape circle is often cut up by the graphite wound gasket, influences its sealing effect.
The model utility content
It has overcome the not good shortcoming of joint sealing configuration of ball valve body and valve gap in the background technique the utility model, and the sealing configuration of a kind of valve ball valve body and valve gap is provided.
The technological scheme that is adopted that the utility model solves its technical problem is:
The sealing configuration of a kind of valve ball valve body and valve gap; It comprises valve body (20) and the valve gap (10) that is fixed together; Said valve body (20) has one first outer turning surface (25) and one first axial end (26), and said valve gap (10) has one second outer turning surface (13) and one second axial end (15); Said valve body (20) first outer turning surface (25) and valve gap (10) second outer turning surface (13) cooperate; Said valve gap (10) second outer turning surface (13) are arranged with first annular groove (11); Be provided with O-ring seals (12) in said first annular groove (11), said O-ring seals (12) the applying first outer turning surface (25); Said valve body (20) first axial end (26) and valve gap (10) second axial end (15) cooperate; Said valve body (20) first axial end (26) extend to form first step (24) and second step (22) to valve gap (10) second axial end (15); Form second annular groove (21) between said first step (24) and the second step (22); Establish graphite wound gasket (23) in said second annular groove (21), said graphite wound gasket (23) applying second axial end (15).
Among one preferred embodiment: said valve gap (10) second axial end are established annular short slot (14), and said annular short slot (14) is fitted mutually with first step (24) and fitted.
Among one preferred embodiment: have certain clearance between said valve body (20) second step (22) and valve gap (10) second axial end (15).
Among one preferred embodiment: said valve body (20) is fixedly connected with nut (40) through double-screw bolt (30) with said valve gap (10).
Among one preferred embodiment: said graphite spirotallic gasket (23) is positioned at said O-ring seals (12) outside, and does not contact mutually.
The present technique scheme is compared with background technique, and it has following advantage:
1. be sealed with graphite wound gasket and O-ring seals simultaneously through joint, reached the effect of double seal at valve ball valve body and valve gap;
2. valve body is provided with second annular groove, and the graphite spirotallic gasket is arranged in this annular groove, and when dismounting of valve body and valve gap and assembling, the graphite spirotallic gasket can be not influenced and damage.
3. through the second step structural design, make graphite spirotallic gasket and O RunddichtringO that the maintenance certain distance arranged, and the two does not contact each other; When valve body is connected with valve gap; The O RunddichtringO is not cut up by the graphite spirotallic gasket, avoids O-ring seals fusing when catching fire simultaneously, plays the frpf function.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 has illustrated the structural representation of the ball valve of a preferred embodiment;
Fig. 2 has illustrated the I portion enlarged diagram of a preferred embodiment Fig. 1.
Embodiment
Please refer to Fig. 1 and Fig. 2, the sealing configuration of a kind of valve ball valve body and valve gap, it comprises the valve body 20 and valve gap 10 that is fixed together, this valve body 20 is fixed together through double-screw bolt 30 and nut 40 with valve gap 10.This valve body 20 has one first outer turning surface 25 and one first axial end 26, and this valve gap 10 has one second outer turning surface 13 and one second axial end 15; Said valve body 20 first outer turning surface 25 cooperate with valve gap 10 second outer turning surface 13, and turning surface 13 is arranged with first annular groove 11 outside valve gap 10 second, in first annular groove 11, is provided with O-ring seals 12, this O-ring seals 12 applyings first outer turning surface 25;
Said valve body 20 first axial end 26 cooperate with valve gap 10 second axial end 15; On valve body 20 first axial end 26, extend to form first step 24 and second step 22 to valve gap 10 second axial end 15; Form second annular groove 21 between this first step 24 and the second step 22; In second annular groove 21, establish graphite wound gasket 23, this graphite wound gasket 23 applyings second axial end.On valve gap 10 second axial end, be provided with an annular short slot 14, this annular short slot 14 is fitted mutually with first step (24) and is fitted, and has certain clearance between valve body 20 second steps 22 and valve gap 10 second axial end 15.
When the utility model uses; Graphite spirotallic gasket 23 and O-ring seals 12 are sealed in respectively in second annular groove 21 and in first annular groove 11, and through double-screw bolt 30 and nut 40 that valve body 20 and valve gap 10 is fastening, even if at the valve frequent movement; Nut 40 is not tightened; Cause leakage after causing using a period of time, also have O-ring seals 12 to play seal action, reached the effect of double seal; Simultaneously; At valve body 20 during with valve gap 10 dismountings and assembling, graphite spirotallic gasket 23 can be not influenced in first annular groove 21 and damage, and graphite spirotallic gasket 23 has the maintenance certain distance with O RunddichtringO 12; The two does not contact each other; O RunddichtringO 12 is not cut up by graphite spirotallic gasket 23, avoids O-ring seals 12 fusings when catching fire simultaneously, plays the frpf function.
The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented according to this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (4)
1. the sealing configuration of valve ball valve body and valve gap; It comprises valve body (20) and the valve gap (10) that is fixed together; It is characterized in that: said valve body (20) has one first outer turning surface (25) and one first axial end (26), and said valve gap (10) has one second outer turning surface (13) and one second axial end (15); Said valve body (20) first outer turning surface (25) and valve gap (10) second outer turning surface (13) cooperate; Said valve gap (10) second outer turning surface (13) are arranged with first annular groove (11); Be provided with O-ring seals (12) in said first annular groove (11), said O-ring seals (12) the applying first outer turning surface (25); Said valve body (20) first axial end (26) and valve gap (10) second axial end (15) cooperate; Said valve body (20) first axial end (26) extend to form first step (24) and second step (22) to valve gap (10) second axial end (15); Form second annular groove (21) between said first step (24) and the second step (22); Establish graphite wound gasket (23) in said second annular groove (21), said graphite wound gasket (23) applying second axial end (15).
2. the sealing configuration of a kind of valve ball valve body according to claim 1 and valve gap is characterized in that: said valve gap (10) second axial end are established annular short slot (14), and said annular short slot (14) is fitted mutually with first step (24) and fitted.
3. the sealing configuration of a kind of valve ball valve body according to claim 1 and valve gap is characterized in that: have certain clearance between said valve body (20) second step (22) and valve gap (10) second axial end (15).
4. the sealing configuration of a kind of valve ball valve body according to claim 1 and valve gap is characterized in that: said valve body (20) is fixedly connected with nut (40) through double-screw bolt (30) with said valve gap (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202261370U CN202171026U (en) | 2011-06-29 | 2011-06-29 | Sealing structure for valve body and valve cover of valve ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202261370U CN202171026U (en) | 2011-06-29 | 2011-06-29 | Sealing structure for valve body and valve cover of valve ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202171026U true CN202171026U (en) | 2012-03-21 |
Family
ID=45829222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202261370U Expired - Lifetime CN202171026U (en) | 2011-06-29 | 2011-06-29 | Sealing structure for valve body and valve cover of valve ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202171026U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764173A (en) * | 2019-03-14 | 2019-05-17 | 无锡智能自控工程股份有限公司 | A kind of high-pressure ball valve with redundancy packing seal structure |
| CN115949767A (en) * | 2022-12-19 | 2023-04-11 | 江苏盐电阀门有限公司 | Deep sea ball valve |
-
2011
- 2011-06-29 CN CN2011202261370U patent/CN202171026U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764173A (en) * | 2019-03-14 | 2019-05-17 | 无锡智能自控工程股份有限公司 | A kind of high-pressure ball valve with redundancy packing seal structure |
| CN115949767A (en) * | 2022-12-19 | 2023-04-11 | 江苏盐电阀门有限公司 | Deep sea ball valve |
| CN115949767B (en) * | 2022-12-19 | 2023-10-31 | 江苏盐电阀门有限公司 | Deep sea ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FUJIAN FEIDA VALVE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: FUJIAN FEIDA VALVE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 363000 Fujian city of Zhangzhou province Changtai Xingtai Industrial Zone Patentee after: Fujian Feida Valve Technology Co., Ltd. Address before: 363000 Fujian city of Zhangzhou province Changtai Xingtai Industrial Zone Patentee before: Fujian Feida Valve Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120321 |
|
| CX01 | Expiry of patent term |