CN203627944U - Safe leakproof check valve - Google Patents
Safe leakproof check valve Download PDFInfo
- Publication number
- CN203627944U CN203627944U CN201320586085.7U CN201320586085U CN203627944U CN 203627944 U CN203627944 U CN 203627944U CN 201320586085 U CN201320586085 U CN 201320586085U CN 203627944 U CN203627944 U CN 203627944U
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- valve
- valve body
- flap
- elastomer
- leakage
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- Expired - Fee Related
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- Lift Valve (AREA)
Abstract
The utility model belongs to the field of valves, and particularly relates to a safe leakproof check valve. The safe leakproof check valve comprises a valve body, a valve bonnet, a rocker arm, a valve flap and a pin shaft, wherein the valve bonnet is connected with the valve body via bolts, a sealing gasket is arranged between the valve body and the valve bonnet, the valve flap comprises a sealing face and a connection column, an elastomer is arranged on the sealing face, the pin shaft is arranged above the valve body interiorly, one end of the rocker arm which is made of a high-elasticity stainless steel material bends inwards and is connected with the valve body via a fixing pin while the other end of the same is detachably connected with the connection column, and the middle portion of the rocker arm is arranged on the pin shaft in a winding manner. Compared with a normal rotary-open type valve, the safe leakproof check valve has the advantages that when fluid pressure in a pipeline is decreased, the valve flap is closed under actions of dead weight of the valve flap and elastic force of a suspension arm, leakproofness of the closed valve is enhanced, and the valve body and the valve flap are sealed more tightly since the elastomer is spherical and an elastic block is arranged on the face, in contact with the elastomer, of the valve body.
Description
Technical field
The utility model belongs to valve field, relates in particular to the leakage-preventing safety check of a kind of safety.
Background technique
Safety check claims again one-way valve or check valve, and its effect is to prevent that medium in pipeline from flowing backwards, and the bottom valve that wherein pump sump closes also belongs to safety check class, and open-shut device is opened voluntarily or closes by media flow and strength, to prevent that valve that medium flows backwards is on safety check.Safety check belongs to self-acting valve class, be mainly used on the pipeline of medium one-way flow, only allow medium to flow to a direction, to try to avert accidents, Applicable media: water, steam, oil product, nitric acid, acetic acid, Oxidant, urea etc., generally be applicable to peace and quiet medium, should not be used for containing solid particle and the larger medium of viscosity, the application area of safety check is very extensive, comprise chemical industry, petrochemical industry, oil, papermaking, mining, electric power, liquid gas, food, pharmacy, plumbing, municipal administration, mechanical equipment coordination, electronics industry, the fields such as urban construction, because medium flows backwards, sealing surface is often destroyed, use for a long time, Swing check valve exists airtight not tight, easily reveal, the shortcoming that non-return effect is bad.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of safety leakage-preventing safety check, comprises valve body, valve gap, rocking arm, flap, bearing pin, it is characterized in that described valve gap and valve body are bolted, and arrange seal washer between described valve body and valve gap; Described flap is divided into sealing surface and attachment post, on described sealing surface, elastomer is set; Described bearing pin is arranged on the inner and upper of described valve body; One end of described rocking arm bends inwards, and is connected with described valve body by fixing pin, and middle part is around the home on described bearing pin, and the other end and described attachment post removably connect.
Described elastomer is set to sphere.
The face contacting with elastomer on described valve body is provided with elastomer block.
The material of described rocking arm is high elasticity stainless steel material.
Described valve body, valve gap, flap material are chromium NiTi refractory steel or chromium NiTi cast steel-teflon.
The beneficial effects of the utility model are: rocking arm adopts high elasticity stainless steel material, in the time that hydrodynamic pressure in pipeline reduces, closed under the effect of flap self gravitation and cantilever elastic force, compared with common rotary-open type valve, have strengthened the sealing after valve closes; Elastomer is set to spherical, and on the face contacting with elastomer at valve body, elastomer block is set, and makes valve body and flap sealing tightr; The utility model valve body and rocking arm, rocking arm and flap are and removably connect, and clean more convenient; Valve body, valve gap, flap adopt chromium NiTi refractory steel or chromium NiTi cast steel-teflon, and corrosion resistance is stronger, and heat resistance is better.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further explained to explanation.
1, valve body, 2, valve gap, 3, rocking arm, 4, flap, 5, bearing pin, 6, seal washer, 7, sealing surface, 8, attachment post, 9, elastomer, 10, fixing pin, 11, elastomer block.
As shown in Figure 1, the utility model comprises valve body 1, valve gap 2, rocking arm 3, flap 4, bearing pin 5, valve gap 2 is bolted with valve body 1, between valve body 1 and valve gap 2, seal washer 6 is set, flap 4 is divided into sealing surface 7 and attachment post 8, elastomer 9 is set on sealing surface 7, bearing pin 5 is arranged on the inner and upper of valve body 1, one end of rocking arm 3 bends inwards, and be connected with valve body 1 by fixing pin 10, middle part is around the home on bearing pin 5, the other end and attachment post 8 removably connect, elastomer 9 is set to sphere, the face contacting with elastomer 9 on valve body 1 is provided with elastomer block 11, the material of rocking arm 3 is high elasticity stainless steel material, valve body 1, valve gap 2, flap 4 materials are chromium NiTi cast steel-teflon.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variation and improvement etc. of doing according to the utility model application range, within all should belonging to patent covering scope of the present utility model.
Claims (5)
1. the leakage-preventing safety check of safety, comprise valve body (1), valve gap (2), rocking arm (3), flap (4), bearing pin (5), it is characterized in that described valve gap (2) and valve body (1) are bolted, and arrange seal washer (6) between described valve body (1) and valve gap (2); Described flap (4) is divided into sealing surface (7) and attachment post (8), and elastomer (9) is set on described sealing surface (7); Described bearing pin (5) is arranged on the inner and upper of described valve body (1); One end of described rocking arm (3) bends inwards, and is connected with described valve body (1) by fixing pin (10), and middle part is upper at described bearing pin (5) around the home, and the other end and described attachment post (8) removably connect.
2. the leakage-preventing safety check of a kind of safety according to claim 1, is characterized in that described elastomer (9) is set to sphere.
3. the leakage-preventing safety check of a kind of safety according to claim 1 and 2, is characterized in that the upper face contacting with described elastomer (9) of described valve body (1) is provided with elastomer block (11).
4. the leakage-preventing safety check of a kind of safety according to claim 3, the material that it is characterized in that described rocking arm (3) is high elasticity stainless steel material.
5. the leakage-preventing safety check of a kind of safety according to claim 4, is characterized in that described valve body (1), valve gap (2), flap (4) material are chromium NiTi refractory steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586085.7U CN203627944U (en) | 2013-09-22 | 2013-09-22 | Safe leakproof check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586085.7U CN203627944U (en) | 2013-09-22 | 2013-09-22 | Safe leakproof check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627944U true CN203627944U (en) | 2014-06-04 |
Family
ID=50814425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320586085.7U Expired - Fee Related CN203627944U (en) | 2013-09-22 | 2013-09-22 | Safe leakproof check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225820A (en) * | 2018-09-30 | 2019-01-18 | 西安赛隆金属材料有限责任公司 | A kind of pneumatic vibrating screen |
-
2013
- 2013-09-22 CN CN201320586085.7U patent/CN203627944U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225820A (en) * | 2018-09-30 | 2019-01-18 | 西安赛隆金属材料有限责任公司 | A kind of pneumatic vibrating screen |
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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: 20140604 Termination date: 20140922 |
|
| EXPY | Termination of patent right or utility model |