CN204420225U - A kind of safety check - Google Patents
A kind of safety check Download PDFInfo
- Publication number
- CN204420225U CN204420225U CN201520045559.6U CN201520045559U CN204420225U CN 204420225 U CN204420225 U CN 204420225U CN 201520045559 U CN201520045559 U CN 201520045559U CN 204420225 U CN204420225 U CN 204420225U
- Authority
- CN
- China
- Prior art keywords
- flap
- safety check
- valve body
- valve
- check
- 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.)
- Expired - Fee Related
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- Check Valves (AREA)
Abstract
A kind of safety check of the utility model, comprising an inside is the valve body of cavity, check valve assembly, O type circle, circlip; Described valve body is provided with water intake, water outlet; Described safety check is arranged in valve cavity, is fixed it with circlip; It is characterized in that: sealed by O type circle between described valve body and check valve assembly.The utility model has the advantage of the one-way flow that can control fluid, prevent reverse flow of fluids, and pressure loss when can reduce unlatching.
Description
Technical field
The utility model relates to valve technology field, particularly relates to a kind of safety check that can prevent reverse flow of fluids in valve.
Background technique
In existing engineering, there are many occasions to use valve, especially in chemical industry, hydraulic engineering, need the keying original paper that valve flows as fluid.Need to ensure that fluid is along the flowing of fixing direction in some engineering, prevent reverse flow of fluids, technician have devised the safety check of one-way conduction for this reason, and fluid is along the direction flowing of design in advance, if reverse fluid flow, can closure of check ring be caused, thus realize one-directional fluid flow.
Model utility content
The utility model embodiment provides a kind of safety check, can control the one-way flow of fluid, prevent reverse flow of fluids, and pressure loss when can reduce unlatching.
The technical solution adopted in the utility model is: a kind of safety check, and comprising an inside is the valve body of cavity, check valve assembly, O type circle, circlip; Described valve body is provided with water intake, water outlet; Described safety check is arranged in valve cavity, is fixed it with circlip; It is characterized in that: sealed by O type circle between described valve body and check valve assembly.
As improvement, described check valve assembly comprises valve seat, flap, spring, seal ring, fixed base.
As improvement, described flap is provided with guide rod, corresponding, fixed base is provided with the pilot hole of tubular, coordinates with guide rod, flap is moved along pilot hole under the effect of guide structure; Described flap is provided with annular groove, groove places seal ring; Described flap design is tapered, can reduce fluid by time the pressure loss.
As improvement, between described flap and fixed base, be provided with spring, under the effect of spring force, the seal ring on flap and valve seat close contact, make safety check be in closed condition completely.
As improvement, described valve body inlet and outlet connectors is all with being threaded.
Compared with prior art, the utility model has the advantage of: can relative sliding between described flap and fixed base, when outlet pressure is greater than inlet pressure, under the effect of pressure reduction and spring force, seal ring on flap contacts with valve seat fast, and valve closing effectively prevents backflow; When upstream pressure is greater than downstream pressure, the seal ring on flap and valve seat depart from, and valve is normally opened, fluid proper flow.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of valve-closed state of the present utility model.
Fig. 2 is the structural representation of valve opening state of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
If figure is a kind of safety check, comprise the valve body 1 that an inside is cavity, check valve assembly 2, circlip 3, O type circle 4; Described valve body is provided with water intake 11, water outlet 12; Described check valve assembly 2 is arranged in described valve body 1 cavity, is fixed it with described circlip 3; It is characterized in that: sealed by O type circle 4 between described valve body 1 and check valve assembly 2.
Described check valve assembly comprises valve seat 21, flap 22, seal ring 23, spring 24, fixed base 25.Described flap 22 is provided with guide rod 221, corresponding, fixed base 25 is provided with the pilot hole 251 of tubular, coordinates with guide rod 221, flap 22 is moved along pilot hole 251 under the effect of guide structure; Described flap 22 is provided with annular groove 222, described annular groove 222 places seal ring 23; Described flap 22 is designed to taper, can reduce fluid by time the pressure loss.Between described flap 22 and fixed base 25, be provided with spring 24, under the effect of spring force, the seal ring 23 on flap 22 and valve seat 21 close contact, make valve be in closed condition completely.Described valve body 1 inlet and outlet connectors is all with being threaded.
Compared with prior art, the utility model has the advantage of: can relative sliding between described flap 22 and fixed base 25, when outlet pressure is greater than inlet pressure, under the effect of pressure reduction and spring force, seal ring 23 on flap 22 contacts with valve seat 21 fast, valve closing, effectively prevents backflow; When upstream pressure is greater than downstream pressure, the seal ring 23 on flap 22 departs from valve seat 21, and valve is normally opened, fluid proper flow.
Specific embodiment described herein is only to the utility model explanation for example.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (5)
1. a safety check, comprising an inside is the valve body of cavity, check valve assembly, O type circle, circlip; Described valve body is provided with water intake, water outlet; Described safety check is arranged in valve cavity, is fixed it with circlip; It is characterized in that: sealed by O type circle between described valve body and check valve assembly.
2. a kind of safety check according to claim 1, is characterized in that, described check valve assembly comprises valve seat, flap, spring, seal ring, fixed base.
3. a kind of safety check according to claim 2, is characterized in that, described flap is provided with guide rod, corresponding, fixed base is provided with the pilot hole of tubular, coordinates with guide rod, flap is moved along pilot hole under the effect of guide structure; Described flap is provided with annular groove, groove places seal ring; Described flap design is tapered, can reduce fluid by time the pressure loss.
4. a kind of safety check according to claim 2, is characterized in that, between described flap and fixed base, be provided with spring, and under the effect of spring force, the seal ring on flap and valve seat close contact, make safety check be in closed condition completely.
5. a kind of safety check according to claim 1, is characterized in that, described valve body inlet and outlet connectors is all with being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520045559.6U CN204420225U (en) | 2015-01-21 | 2015-01-21 | A kind of safety check |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520045559.6U CN204420225U (en) | 2015-01-21 | 2015-01-21 | A kind of safety check |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204420225U true CN204420225U (en) | 2015-06-24 |
Family
ID=53470596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520045559.6U Expired - Fee Related CN204420225U (en) | 2015-01-21 | 2015-01-21 | A kind of safety check |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204420225U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799569A (en) * | 2018-07-26 | 2018-11-13 | 东莞市蛮牛净水设备配件有限公司 | A kind of non-return valve |
| CN109185510A (en) * | 2018-09-28 | 2019-01-11 | 安溪县斯马拓科技发展有限公司 | A kind of dock straight check valve |
-
2015
- 2015-01-21 CN CN201520045559.6U patent/CN204420225U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799569A (en) * | 2018-07-26 | 2018-11-13 | 东莞市蛮牛净水设备配件有限公司 | A kind of non-return valve |
| CN109185510A (en) * | 2018-09-28 | 2019-01-11 | 安溪县斯马拓科技发展有限公司 | A kind of dock straight check valve |
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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: 20150624 Termination date: 20160121 |
|
| EXPY | Termination of patent right or utility model |