CN201412569Y - Dual-eccentric high performance check valve - Google Patents
Dual-eccentric high performance check valve Download PDFInfo
- Publication number
- CN201412569Y CN201412569Y CN2009201575142U CN200920157514U CN201412569Y CN 201412569 Y CN201412569 Y CN 201412569Y CN 2009201575142 U CN2009201575142 U CN 2009201575142U CN 200920157514 U CN200920157514 U CN 200920157514U CN 201412569 Y CN201412569 Y CN 201412569Y
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- valve body
- valve barrel
- check valve
- high performance
- valve
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- Expired - Fee Related
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Abstract
The utility model relates to a dual-eccentric high performance check valve, which belongs to a check valve, comprising a left valve body (1) and a right valve body (2). The check valve is characterized in that the right end of the left valve body (1) is an inclined opening from a upper right position to a left lower position, the left end of the right valve body is an inclined opening adapted to the right end of the left valve body (1), and the right end of the left valve body (1) is connected to the left end of the right valve body (2) through a plurality of screw bolts (4). A valve clack (3)transmissively connected through a pivot (5) is disposed one the right end of the inner cavity of the left valve body (1), which forms a sealing surface with the left end of the inner cavity of the right valve body (2) when closed, and is eccentrically connected to the pivot (5). The dual-eccentric high performance check valve of the utility model overcomes the shortcoming of check valves in prior art, saves cost, has wide application range, long life, and high working efficiency, so that it is especially suitable for being used in the working environment requiring small closing impact, smallwater impact, and low closing sound.
Description
Technical field
The utility model relates to safety check, a kind of specifically two eccentric high performance check valves.
Background technique
Traditional safety check can be divided into three kinds of Swing check valve, Lift check valve and Bivalved check valves.The major defect of Swing check valve is: it is big to close impact force, closes loudly, and the sealing surface ratio is easier to bad, so be restricted on the working pressure bore always.The major defect of Lift check valve is: it is big to close impact force, uses bore little, and material is relatively wasted.The major defect of Bivalved check valve is: use bore little, the sealing surface ratio is easier to bad.
The model utility content
At the defective that exists in the prior art, the purpose of this utility model is to provide a kind of two eccentric high performance check valve, overcome the shortcoming of conventional check valves, save cost, using scope is wide, long service life, high working efficiency, especially be fit to use in that to require to close impact force little, water attack power is little, closes in the little working environment of sound.
For reaching above purpose, the technological scheme that the utility model is taked is:
A kind of two eccentric high performance check valve, comprise left valve barrel 1 and right valve barrel 2, it is characterized in that: the right-hand member of left valve barrel 1 is the angle from upper right to the lower-left, the left end of right valve barrel 2 is the angle adaptive with the right-hand member of left valve barrel 1, the left end of the right-hand member of left valve barrel 1 and right valve barrel 2 is connected by some bolts 4, the right-hand member of left valve barrel 1 inner chamber is provided with a flap 3 that is rotationally connected by bearing pin 5, when flap 3 is closed and the left end of right valve barrel 2 inner chambers constitute sealing surface, flap 3 is connected for eccentric with bearing pin 5.
On the basis of technique scheme, right valve barrel 2 inner chambers are projection to the inside, and the internal surface of projection and the sealing surface of flap 3 constitute sealing pair.
Two eccentric high performance check valve described in the utility model has overcome the shortcoming of conventional check valves, saves cost, using scope is wide, long service life, high working efficiency, especially be fit to use in that to require to close impact force little, water attack power is little, closes in the little working environment of sound.
Description of drawings
The utility model has following accompanying drawing:
The structural representation of the two eccentric high performance check valve open modes of Fig. 1
The structural representation of the two eccentric high performance check valve closed conditions of Fig. 2
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, two eccentric high performance check valve described in the utility model, comprise left valve barrel 1 and right valve barrel 2, the right-hand member of left valve barrel 1 is the angle from upper right to the lower-left, the left end of right valve barrel 2 is the angle adaptive with the right-hand member of left valve barrel 1, the left end of the right-hand member of left valve barrel 1 and right valve barrel 2 is connected by some bolts 4, the right-hand member of left valve barrel 1 inner chamber is provided with a flap 3 that is rotationally connected by bearing pin 5, when flap 3 is closed and the left end of right valve barrel 2 inner chambers constitute sealing surface, flap 3 is connected for eccentric with bearing pin 5.Said pair of off-centre is meant bearing pin 5 and valve body sealing surface off-centre, and flap 3 is connected for eccentric with the valve body center line, and promptly the upper end of flap 3 and bearing pin 5 are rotationally connected.The sealing surface required precision reaches Ra0.4～0.8.
On the basis of technique scheme, right valve barrel 2 inner chambers are projection to the inside, and the internal surface of projection and the sealing of flap 3 constitute sealing pair.Flap can be connected to form the sealing pair of sealing with the protruding to the inside part of right valve barrel 2 inner chambers under the own wt effect.
Sealing surface weld deposit low alloy steel or cemented carbide in the technique scheme grind after the sealing fine finishing.
The utility model is used for the pipeline of the anti-adverse current of petroleum and petrochemical industry, rock gas, hydraulic engineering etc., it can be that flange connects, butt welding connects, molding mode can be to forge, also can be with casting, the working pressure scope is big, uses the bore scope big, and it has overcome conventional check valves, and to close impact force big, water hammer, sealing surface is bad easily, closes shortcomings such as loud, and material also has only 60% of conventional check valves simultaneously, can higher generalization use so this use is novel, save material, increase the service life, working efficiency is provided.
As shown in Figure 1, 2, the arrow among the figure is represented water (flow) direction.Among Fig. 1, the utility model is under the effect of pipeline self pressure, flap begins to open, disconnect or after system's supply pressure stops at pipeline pressure, flap is closed under the effect of gravity and pipeline self reaction force (Fig. 2), contacting with sealing surface when flap is closed is linear contact, owing to be pair eccentric structures, flap can slowly be closed.So the utility model can reduce the sealing surface impact force, water attack power is little, and the sealing surface long service life reduces cost, and working efficiency is provided.
Claims (2)
1. two eccentric high performance check valve, comprise left valve barrel (1) and right valve barrel (2), it is characterized in that: the right-hand member of left valve barrel (1) is the angle from upper right to the lower-left, the left end of right valve barrel (2) is the adaptive angle of right-hand member with left valve barrel (1), the left end of the right-hand member of left valve barrel (1) and right valve barrel (2) is connected by some bolts (4), the right-hand member of left valve barrel (1) inner chamber is provided with a flap (3) that is rotationally connected by bearing pin (5), when flap (3) is closed and the left end of right valve barrel (2) inner chamber constitute sealing surface, flap (3) and bearing pin (5) are connected for off-centre.
2. two eccentric high performance check valve as claimed in claim 1, it is characterized in that: right valve barrel (2) inner chamber is projection to the inside, and the internal surface of projection and the sealing surface of flap (3) constitute sealing pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201575142U CN201412569Y (en) | 2009-05-22 | 2009-05-22 | Dual-eccentric high performance check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201575142U CN201412569Y (en) | 2009-05-22 | 2009-05-22 | Dual-eccentric high performance check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412569Y true CN201412569Y (en) | 2010-02-24 |
Family
ID=41714453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201575142U Expired - Fee Related CN201412569Y (en) | 2009-05-22 | 2009-05-22 | Dual-eccentric high performance check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412569Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084265A (en) * | 2017-06-23 | 2017-08-22 | 山东明天机械有限公司 | Gas piping check valve special |
| CN107975623A (en) * | 2016-10-24 | 2018-05-01 | 芙罗服务管理公司 | Valve module and the method that sealing is provided in valve |
-
2009
- 2009-05-22 CN CN2009201575142U patent/CN201412569Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975623A (en) * | 2016-10-24 | 2018-05-01 | 芙罗服务管理公司 | Valve module and the method that sealing is provided in valve |
| US10753480B2 (en) | 2016-10-24 | 2020-08-25 | Flowserve Management Company | Valves including multiple seats and related assemblies and methods |
| CN107084265A (en) * | 2017-06-23 | 2017-08-22 | 山东明天机械有限公司 | Gas piping check valve special |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Tiante Valve Group Co.,Ltd. Assignor: Liu Wenrou Contract record no.: 2010330001862 Denomination of utility model: Dual-eccentric high performance check valve Granted publication date: 20100224 License type: Exclusive License Record date: 20100916 |
|
| ASS | Succession or assignment of patent right |
Owner name: TAITE VALVE CO., LTD. Free format text: FORMER OWNER: LIU WENROU Effective date: 20140804 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325100 WENZHOU, ZHEJIANG PROVINCE TO: 323000 LISHUI, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140804 Address after: 323000 Zhejiang Province, Lishui City Shuige Industrial Zone Patentee after: Tete valve Limited by Share Ltd Address before: 325100 Zhejiang province Yongjia County Oubei Town Road Hongkong City Xiangjiang court room 17A02 Patentee before: Liu Wenrou |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20140522 |