CN104455574A - Check valve easy to clean - Google Patents
Check valve easy to clean Download PDFInfo
- Publication number
- CN104455574A CN104455574A CN201310432994.XA CN201310432994A CN104455574A CN 104455574 A CN104455574 A CN 104455574A CN 201310432994 A CN201310432994 A CN 201310432994A CN 104455574 A CN104455574 A CN 104455574A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- flap
- safety check
- rocking arm
- 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
Links
Classifications
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- 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
- F16K15/033—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member spring-loaded
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
Landscapes
- 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 a check valve easy to clean. The check valve comprises a valve body, a valve deck, a rocker arm, a valve clack and a pin shaft, wherein the valve deck is arranged on the lower portion of the valve body and connected with the valve body through bolts, a sealing gasket is arranged between the valve body and the valve deck, the valve clack is divided into a sealing surface and a connecting pillar, an elastic body is arranged on the sealing surface, the pin shaft is arranged on the upper portion inside the valve body, one end of the rocker arm is bent inwards and connected with the valve body through a fixing pin, the middle of the rocker arm is wound on the pin shaft, and the other end of the rocker arm is detachably connected with the connecting pillar. The check valve easy to clean has the advantages that as impurities in media are usually accumulated at the bottom of the valve body, the valve deck is arranged at the bottom of the valve body, and when the check valve is cleaned, the impurities at the bottom can be cleaned up as long as the valve deck is opened. The check valve easy to clean is reasonable in design, practical and convenient to use, and saves time and labor. A cavity is formed by the lower portion of the valve body and the valve deck and plays a role in buffering when the valve clack is closed, so that the valve clack and a pipeline are not prone to being damaged.
Description
Technical field
The invention belongs to valve field, particularly relate to a kind of easy cleaned safety check.
Background technique
Safety check belongs to self-acting valve class, be widely used in chemical industry, petrochemical industry, oil, papermaking, mining, electric power, liquid gas, food, pharmacy, plumbing, municipal administration, mechanical equipment coordination, electronics industry, multiple field such as urban construction, Applicable media comprises water, steam, oil product, nitric acid, acetic acid, Oxidant, urea etc., safety check is mainly used on the pipeline of medium one-way flow, medium is only allowed to flow to a direction, 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, to try to avert accidents, press flap motion mode different, safety check is mainly divided into rise-fall type, rotary-open type and butterfly 3 class, 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, open-shut device is opened voluntarily by media flow and strength or closes, safety check is also known as one-way valve or check valve, its effect prevents the medium in pipeline from flowing backwards.Medium flows backwards and often produces harm to safety check, and sealing surface destroys, and cut-off is not clean completely in addition, and the impurity sandwiching impurity in medium is easily deposited in valve body position, does not clear up for a long time, and 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 cleaned safety check, comprise valve body, valve gap, rocking arm, flap, bearing pin, it is characterized in that described valve gap is arranged on the bottom of described valve body, be bolted with valve body, between described valve body and valve gap, seal washer is set; Described flap is divided into sealing surface and attachment post, and described sealing surface is fixedly connected with described attachment post; Described sealing surface arranges elastomer; Described bearing pin is arranged on the inner 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 material of described rocking arm is high elasticity stainless steel material.
Described rocking arm surface, valve interior surface, flap surface scribble polyurethane or chlorinated rubber.
Described valve body, valve gap, flap material are chromium NiTi refractory steel or chromium NiTi cast steel-teflon.
Beneficial effect of the present invention is: because medium is not absolute pure, in the process that flap is closed, impurity in medium is often deposited in the bottom of valve body, remove these impurity, safety check entirety is needed 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 bottom of valve gap and valve body is formed a chamber by the present invention, after flap is closed, play buffer function, make flap and pipeline not fragile, rocking arm adopts high elasticity stainless steel material, when hydrodynamic pressure in pipeline reduces, closed under the effect of flap self gravitation and cantilever elastic force, compared with common rotary-open type valve, enhances the sealing after valve closes, elastomer is set to spherical, makes sealing tightr.
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, seal washer, 7, sealing surface, 8, attachment post, 9, elastomer, 10, fixing pin.
As shown in Figure 1, a kind of easy cleaned safety check, comprise valve body 1, valve gap 2, rocking arm 3, flap 4, bearing pin 5, valve gap 2 is arranged on the bottom of valve body 1, be bolted with valve body 1, seal washer 6 is set between valve body 1 and valve gap 2, flap 4 is divided into sealing surface 7 and attachment post 8, sealing surface 7 is fixedly connected with described attachment post 8, sealing surface 7 is arranged elastomer 9, bearing pin 5 is arranged on the inner 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 material of rocking arm 3 is high elasticity stainless steel material, rocking arm 3 surface, valve body 1 internal surface, flap 4 surface scribbles polyurethane, valve body 1, valve gap 2, flap 4 material is chromium NiTi refractory steel.
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 (5)
1. an easy cleaned safety check, comprise valve body (1), valve gap (2), rocking arm (3), flap (4), bearing pin (5), it is characterized in that described valve gap (2) is arranged on the bottom of described valve body (1), be bolted with valve body (1), seal washer (6) is set between described valve body (1) and valve gap (2); Described flap (4) is divided into sealing surface (7) and attachment post (8); Described sealing surface (7) is fixedly connected with described attachment post (8); Described sealing surface (7) is arranged elastomer (9); Described bearing pin (5) is arranged on the inner 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 around the home on described bearing pin (5), and the other end and described attachment post (8) removably connect.
2. the easy cleaned safety check of described one according to claim 1, is characterized in that described elastomer (9) is set to sphere.
3. the easy cleaned safety check of described one according to claim 1, is characterized in that the material of described rocking arm (3) is high elasticity stainless steel material.
4. the easy cleaned safety check of described one according to claim 1, is characterized in that described rocking arm (3) surface, valve body (1) internal surface, flap (4) surface scribble polyurethane or chlorinated rubber.
5. the easy cleaned safety check of described one according to claim 1, is characterized in that described valve body (1), valve gap (2), flap (4) material are chromium NiTi refractory steel or chromium NiTi cast steel-teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432994.XA CN104455574A (en) | 2013-09-22 | 2013-09-22 | Check valve easy to clean |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432994.XA CN104455574A (en) | 2013-09-22 | 2013-09-22 | Check valve easy to clean |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104455574A true CN104455574A (en) | 2015-03-25 |
Family
ID=52902097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310432994.XA Pending CN104455574A (en) | 2013-09-22 | 2013-09-22 | Check valve easy to clean |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455574A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998126A (en) * | 2020-09-09 | 2020-11-27 | 罗兰自控阀业（上海）有限公司 | Sewage lifting valve for sewage lifting device |
| CN114080328A (en) * | 2019-07-16 | 2022-02-22 | 德国诺玛公司 | Discharge connection for the separate discharge of fluids of different densities |
-
2013
- 2013-09-22 CN CN201310432994.XA patent/CN104455574A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114080328A (en) * | 2019-07-16 | 2022-02-22 | 德国诺玛公司 | Discharge connection for the separate discharge of fluids of different densities |
| CN114080328B (en) * | 2019-07-16 | 2024-01-30 | 德国诺玛公司 | Discharge connection for separate discharge of fluids of different densities |
| CN111998126A (en) * | 2020-09-09 | 2020-11-27 | 罗兰自控阀业（上海）有限公司 | Sewage lifting valve for sewage lifting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |