CN201373145Y - Double-disc swing check valve - Google Patents
Double-disc swing check valve Download PDFInfo
- Publication number
- CN201373145Y CN201373145Y CN200920116806U CN200920116806U CN201373145Y CN 201373145 Y CN201373145 Y CN 201373145Y CN 200920116806 U CN200920116806 U CN 200920116806U CN 200920116806 U CN200920116806 U CN 200920116806U CN 201373145 Y CN201373145 Y CN 201373145Y
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- China
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- positioning
- valve
- positioning plate
- valve body
- block
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- Expired - Lifetime
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Abstract
The utility model relates to a double-disc swing check valve, which comprises a valve body, valve discs, a spring, a valve shafts, positioning plates and a positioning shaft, wherein the valve shaft and the positioning shaft are mounted inside the valve body via the positioning plates. Besides, positioning grooves with arc cross sections are formed at the positions corresponding to the positioning plates on two sides of an inner wall of the valve body, arc projections matching with the positioning grooves are formed at the bottom of each positioning plate, the bottom of each positioning plate and the inner wall of the valve body are in static sealing engagement, one side near each valve disc of each positioning plate and a groove wall of each positioning groove on the valve body are in static sealing engagement, a positioning block is disposed at an outer end of the other side relative to one side of each valve disc of each positioning plate, each positioning block and each positioning plate are connected fixedly, and the bottom of each positioning block is disposed inside each positioning groove and then is inserted into a positioning square block at the lower end of each positioning groove through a positioning inserting block on the positioning block to be in limit engagement. The double-disc swing check valve utilizes the structure design without valve body penetrating holes and then avoids medium leakage.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of bivalve Swing check valve.
Background technique
Conventional bivalve Swing check valve need bore four through holes that penetrate valve body for valve shaft and positioning shaft are installed on valve body on valve body, first valve shaft and positioning shaft are installed on the valve body, with four plug screws and pad the through hole on the valve body is blocked then.Although four through holes that penetrate valve body are plugged, still have the possibility that medium leaks outside by screw takes place, the especially long-term possibility of using the back and leaking outside under the situation of temperature, pressure alternation is bigger.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art, and a kind of bivalve Swing check valve of better tightness is provided.
For achieving the above object, the utility model adopts a kind of bivalve Swing check valve, comprise valve body, flap, spring, valve shaft, positioning plate, positioning shaft, by positioning plate valve shaft and positioning shaft are installed in valve inner, forming the cross section in corresponding positioning plate position, the both sides of valve interior wall is the locating slot of arc, the positioning plate bottom forms and the suitable arc convex of locating slot, the positioning plate bottom constitutes static seal with valve interior wall and cooperates, positioning plate cooperates near the cell wall formation static seal of the locating slot on flap one side and the valve body, the opposite side outer end of relative this side of flap of positioning plate is provided with positioning block, fixedly connected between positioning block and the positioning plate, the positioning block bottom is contained in the locating slot of valve body, and relies on the spacing cooperation of the interior formation of location square of the inserted block insertion locating slot lower end, location on the positioning block.
The utility model further is set to offer in the positioning block screw, that direction is set is consistent for be provided with direction and the passage of valve body of screw, positioning plate forms blind hole near the corresponding screw of positioning block one side, and screw passes between screw and blind hole formation positioning plate and the positioning block fixedlys connected.
The utility model again one the step be set to a flange respectively is set in the both sides, front and back of valve body, be bolted to connection between the flange of front and back, the flange inner wall that is positioned at positioning block one side is close to the positioning block front end.
The utility model relies on that specified structure is connected the effect that reaches sealing between static seal cooperation between valve body and the positioning plate, positioning plate and the positioning block, through hole on the valve body is blocked to prevent to reveal with plug screw and pad with prior art and compare, therefore do not have the structural design of valve body through hole, thereby avoided leaking outside of medium.
Description of drawings
Fig. 1 is the utility model example structure schematic representation.
Fig. 2 is that the F of Fig. 1 is to schematic representation.
Fig. 3 is the E portion enlarged view of Fig. 1.
Embodiment
As Fig. 1, shown in 2, specific embodiment of the utility model is a kind of bivalve Swing check valve, comprise valve body 1, flap 2, spring 3, valve shaft 4, positioning plate 5, positioning shaft 6, by positioning plate 5 valve shaft 4 and positioning shaft 6 are installed in valve body 1 inside, forming the cross section in corresponding positioning plate 5 positions, the both sides of valve body 1 inwall is the locating slot 11 of arc, the arc convex 51 suitable with locating slot 11 formed on positioning plate 5 bottoms, positioning plate 5 bottoms constitute static seal with valve body 1 inwall and cooperate, positioning plate 5 cooperates near the cell wall 111 formation static seals of the locating slot 11 on flap one sides and the valve body 1, the opposite side outer end of positioning plate 5 relative flap 2 these sides is provided with positioning block 7, offer 2 screws 71 in the positioning block 7, that direction is set is consistent for be provided with direction and the passage of valve body 1 of screw 71, positioning plate 5 forms 52,2 pieces of screws 8 of blind holes near the corresponding screws 71 of positioning block 7 one sides and passes between screw 71 and blind hole 52 formation positioning plates 5 and the positioning block 7 and fixedly connected.Positioning block 7 bottoms are contained in the locating slot 11 of valve body 1, and rely on the spacing cooperation of location square 12 interior formations of location inserted block 72 insertion locating slots 11 lower ends on the positioning block 7.In the both sides, front and back of valve body 1 flange 9 is set respectively, fixedly connected by bolt 10 between the front and back flange 9, flange 9 inwalls that are positioned at positioning block 7 one sides are close to positioning block 7 front ends.
The utility model relies on that specified structure is connected the effect that reaches sealing between static seal cooperation between valve body 1 and the positioning plate 5, positioning plate 5 and the positioning block 7, through hole on the valve body is blocked to prevent to reveal with plug screw and pad with prior art and compare, therefore do not have the structural design of valve body through hole, thereby avoided leaking outside of medium.
Claims (3)
1, a kind of bivalve Swing check valve, comprise valve body, flap, spring, valve shaft, positioning plate, positioning shaft, by positioning plate valve shaft and positioning shaft are installed in valve inner, it is characterized in that: forming the cross section in corresponding positioning plate position, the both sides of valve interior wall is the locating slot of arc, the positioning plate bottom forms and the suitable arc convex of locating slot, the positioning plate bottom constitutes static seal with valve interior wall and cooperates, positioning plate cooperates near the cell wall formation static seal of the locating slot on flap one side and the valve body, the opposite side outer end of relative this side of flap of positioning plate is provided with positioning block, fixedly connected between positioning block and the positioning plate, the positioning block bottom is contained in the locating slot of valve body, and relies on the spacing cooperation of the interior formation of location square of the inserted block insertion locating slot lower end, location on the positioning block.
2, bivalve Swing check valve according to claim 1, it is characterized in that: offer screw in the described positioning block, that direction is set is consistent for be provided with direction and the passage of valve body of screw, positioning plate forms blind hole near the corresponding screw of positioning block one side, and screw passes between screw and blind hole formation positioning plate and the positioning block fixedlys connected.
3, bivalve Swing check valve according to claim 1 and 2 is characterized in that: described both sides, front and back at valve body respectively are provided with a flange, are bolted to connection between the flange of front and back, and the flange inner wall that is positioned at positioning block one side is close to the positioning block front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920116806U CN201373145Y (en) | 2009-03-31 | 2009-03-31 | Double-disc swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920116806U CN201373145Y (en) | 2009-03-31 | 2009-03-31 | Double-disc swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373145Y true CN201373145Y (en) | 2009-12-30 |
Family
ID=41499226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920116806U Expired - Lifetime CN201373145Y (en) | 2009-03-31 | 2009-03-31 | Double-disc swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373145Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948783A (en) * | 2015-07-10 | 2015-09-30 | 苏州彭瀚机械有限公司 | High-class double-disc wafer type check valve without outside leakage |
| CN108223851A (en) * | 2018-02-27 | 2018-06-29 | 温州威蓝阀门有限公司 | A kind of locating piece for check-valves |
-
2009
- 2009-03-31 CN CN200920116806U patent/CN201373145Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948783A (en) * | 2015-07-10 | 2015-09-30 | 苏州彭瀚机械有限公司 | High-class double-disc wafer type check valve without outside leakage |
| CN108223851A (en) * | 2018-02-27 | 2018-06-29 | 温州威蓝阀门有限公司 | A kind of locating piece for check-valves |
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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: CHAODA VALVE GROUP CO., LTD. Free format text: FORMER NAME: ZHEJIANG CHAODA VALVE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Jiangbei Avenue 325100 Zhejiang Oubei town of Yongjia County Patentee after: Chaoda Valve Group Co., Ltd. Address before: Jiangbei Avenue 325100 Zhejiang Oubei town of Yongjia County Patentee before: Zhejiang Chaoda Valve Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091230 |