CN104455575A - Anti-corrosion check valve convenient to dismount - Google Patents
Anti-corrosion check valve convenient to dismount Download PDFInfo
- Publication number
- CN104455575A CN104455575A CN201310433286.8A CN201310433286A CN104455575A CN 104455575 A CN104455575 A CN 104455575A CN 201310433286 A CN201310433286 A CN 201310433286A CN 104455575 A CN104455575 A CN 104455575A
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- CN
- China
- Prior art keywords
- valve
- valve body
- rocking arm
- rocker arm
- dismount
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention belongs to the field of valves, and particularly relates to an anti-corrosion check valve convenient to dismount. The anti-corrosion check valve convenient to dismount comprises a valve body, a valve cover, a rocker arm, a valve clack and a pin shaft. The rocker arm is in a V shape, the sharp portion of the V shape of the rocker arm is rotatably connected with the pin shaft, one end of the rocker arm is detachably connected with the valve clack, a compressing piece is arranged at the other end of the rocker arm, the compressing piece is detachably connected with the rocker arm, the valve cover is arranged on the lower portion of the valve body and connected with the valve body through a bolt, a sealing gasket is arranged between the valve body and the valve cover, the valve clack is divided into a sealing face and a connecting column, and an elastic body is arranged on the sealing face. A cavity is formed in the lower portion of the valve cover and the lower portion of the valve body, the buffer function is achieved, and the valve clack and a pipeline are not likely to be damaged. The valve cover is arranged at the bottom of the valve body, impurities can be removed thoroughly simply by opening the valve cover, design is reasonable, and practicality and convenience are achieved. Through the design that the rocker arm is in the V shape, after the valve clack is in contact with the valve body, the compressing piece is suspended, the valve clack is compressed under the action of gravity, so that the sealing performance of the whole valve is higher, and leakage is not prone to occurring.
Description
Technical field
The invention belongs to valve field, particularly relate to a kind of easy-to-dismount corrosion-resistant safety check.
Background technique
Open-shut device is opened voluntarily by media flow and strength or closes, and the valve flow backwards to prevent medium is on safety check.Safety check belongs to self-acting valve class, is mainly used on the pipeline of medium one-way flow, only allows medium to flow to a direction, to try to avert accidents.Usually, fluid makes the flap of valve open under pressure, and flows to outlet side from suction side.When suction side pressure is lower than outlet side, flap under the effect of hydrodynamic pressure and gravity own automatically by pathway closure, stop fluid countercurrent current, press flap motion mode different, safety check is mainly divided into rise-fall type, rotary-open type and butterfly 3 class, the employing in-built rocking arm rotary-open type structure of Swing check valve, all open-shut device of valve are all loaded on valve inner, do not penetrate valve body, except middle flange position gasket seal and seal ring, entirety does not have outer leak source, stop the possibility that valve leaks, the structure that rocking arm and flap joint adopt sphere to be connected, flap is made to have certain degrees of freedom within the scope of 360 degree, there is suitable micro-position compensation, Swing check valve is widely used in chemical industry, metallurgical, multiple field such as pharmacy, medium flows backwards and often produces harm to safety check, sealing surface destroys, in addition cut-off is not clean completely, the impurity sandwiching impurity in medium is easily deposited in valve body position, do not clear up for a long time, easily cause the airtight not tight of safety check, non-return effect is bad.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of easy-to-dismount corrosion-resistant safety check, comprise valve body, valve gap, rocking arm, flap, bearing pin, it is characterized in that described rocking arm is V-shaped, tip and the described bearing pin of described rocking arm " V " shape are rotationally connected; One end of described rocking arm is detachably connected with flap, and the other end is provided with compressing member; Described compressing member and rocking arm removably connect; Described valve gap is arranged on the bottom of described valve body, is bolted with valve body, arranges seal washer between described valve body and valve gap; Described flap is divided into sealing surface and attachment post, and described sealing surface arranges elastomer.
The angle on described rocking arm " V " shape two limits is 45 °-70 °.
Described compressing member material is chromium NiTi cast steel-teflon.
High elasticity water-proof paint is scribbled inside described valve interior surface, valve gap, on flap, rocking arm.
Beneficial effect of the present invention is: the bottom of valve gap and valve body is formed a chamber by the present invention, after flap is closed, plays buffer function, makes flap and pipeline not fragile; Because medium is not absolute pure, in the process that flap is closed, the impurity in medium is often deposited in the bottom of valve body, remove these impurity, need safety check entirety to pull down, clean, time and effort consuming, valve gap is arranged on the bottom of valve body, through the long-time safety check used, as long as valve gap is opened, just the impurity of bottom thoroughly can be removed, reasonable in design, practical and convenient; The V-shaped design of rocking arm; one end of rocking arm is connected with flap; the other end is provided with compressing member; when the pressure in pipeline reduces, flap and compressing member move in a circle around bearing pin, when after valve flap contacts to valve body; because compressing member is still in vacant state simultaneously; compressed by flap under gravity, make the sealing of whole valve tighter, not easily reveal.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, explanation is further explained to the present invention.
1, valve body, 2, valve gap, 3, rocking arm, 4, flap, 5, bearing pin, 6, compressing member, 7, seal washer, 8, sealing surface, 9, attachment post, 10, elastomer.
As shown in Figure 1, the present invention includes valve body 1, valve gap 2, rocking arm 3, flap 4, bearing pin 5, , rocking arm 3 is V-shaped, tip and the bearing pin 5 of rocking arm 3 " V " shape are rotationally connected, one end of rocking arm 3 is detachably connected with flap 4, the other end is provided with compressing member 6, compressing member 6 and rocking arm 3 removably connect, valve gap 2 is arranged on the bottom of valve body 1, be bolted with valve body 1, seal washer 7 is set between valve body 1 and valve gap 2, flap 4 is divided into sealing surface 8 and attachment post 9, sealing surface 8 is arranged elastomer 10, the angle on rocking arm 3 " V " shape two limits is 60 °, compressing member 6 material is chromium NiTi cast steel-teflon, valve body 1 internal surface, inside valve gap 2, flap 4, rocking arm 3 scribbles high elasticity water-proof paint.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should belong within patent covering scope of the present invention.
Claims (4)
1. an easy-to-dismount corrosion-resistant safety check, comprise valve body (1), valve gap (2), rocking arm (3), flap (4), bearing pin (5), it is characterized in that described rocking arm (3) is V-shaped, tip and the described bearing pin (5) of described rocking arm (3) " V " shape are rotationally connected; One end of described rocking arm (3) is detachably connected with flap (4), and the other end is provided with compressing member (6); Described compressing member (6) and rocking arm (3) removably connect; Described valve gap (2) is arranged on the bottom of described valve body (1), is bolted with described valve body (1), arranges seal washer (7) between described valve body (1) and valve gap (2); Described flap (4) is divided into sealing surface (8) and attachment post (9), described sealing surface (8) is arranged elastomer (10).
2. the easy-to-dismount corrosion-resistant safety check of one according to claim 1, is characterized in that the angle on described rocking arm (3) " V " shape two limits is 45 °-70 °.
3. the easy-to-dismount corrosion-resistant safety check of one according to claim 1, is characterized in that described compressing member (6) material is chromium NiTi cast steel-teflon.
4. the easy-to-dismount corrosion-resistant safety check of one according to claim 1, is characterized in that described valve body (1) internal surface, valve gap (2) inner side, (3) scribbles high elasticity water-proof paint flap (4), rocking arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310433286.8A CN104455575A (en) | 2013-09-22 | 2013-09-22 | Anti-corrosion check valve convenient to dismount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310433286.8A CN104455575A (en) | 2013-09-22 | 2013-09-22 | Anti-corrosion check valve convenient to dismount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104455575A true CN104455575A (en) | 2015-03-25 |
Family
ID=52902098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310433286.8A Pending CN104455575A (en) | 2013-09-22 | 2013-09-22 | Anti-corrosion check valve convenient to dismount |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455575A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067878A (en) * | 2019-05-31 | 2019-07-30 | 苏州优德通力科技有限公司 | A kind of elastomeric check valve |
-
2013
- 2013-09-22 CN CN201310433286.8A patent/CN104455575A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067878A (en) * | 2019-05-31 | 2019-07-30 | 苏州优德通力科技有限公司 | A kind of elastomeric check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |