CN203906892U - Safe one-way check valve - Google Patents
Safe one-way check valve Download PDFInfo
- Publication number
- CN203906892U CN203906892U CN201420333406.7U CN201420333406U CN203906892U CN 203906892 U CN203906892 U CN 203906892U CN 201420333406 U CN201420333406 U CN 201420333406U CN 203906892 U CN203906892 U CN 203906892U
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- CN
- China
- Prior art keywords
- valve
- return
- check
- way valve
- spring
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- 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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Abstract
The utility model relates to the field of gas transportation equipment, in particular to a safe one-way check valve. Generally, gas backflow is caused by valve core wear due to high-pressure impact of the valve core and the like, or aging and wear of a sealing ring, so various adverse effects are caused. The utility model discloses the safe one-way valve capable of effectively preventing the reflowing. The safe one-way valve comprises a cylindrical valve body, wherein a buffer spring seat and a sealing ring seat are arranged inside the cylindrical valve body; a buffer spring and a sealing ring are respectively arranged on the buffer spring seat and the sealing ring seat; the buffer spring is also fixedly connected with a conical valve core. The safe one-way check valve is also provided with an emptying device; a check spring seat is also arranged inside the valve body; a check spring is arranged on the check spring seat; a sealing gasket is also fixedly connected to the check spring. The check function of the one-way valve is effectively enhanced.
Description
Technical field
The utility model relates to gas transportation facilities field, particularly a kind of safe safety check, one-way valve.
Background technique
One-way valve be air-flow can only one direction flow and position control valve that can not reverse flow, air-flow overcomes spring force and frictional force is opened one-way valve valve port, when valve body non-compressed air, in spring force and valve body under the effect of residual air power; Valve port, in closed condition, makes two ends air-flow obstructed.The one way stop peturn valve of spring, gas, liquid from bottom to top, rely on the spring controlled flap of pressure jack-up, and after pressure disappears, spring force is depressed flap, and sealing gas, liquid flow backwards.Conventional one-way valve structures comprises spool and spring and seal ring, the spool wearing and tearing that produce due to the situations such as shock of spool high pressure, or the senile abrasion of seal ring causes gas backstreaming to cause various ill effects.
Summary of the invention
The purpose of this utility model is exactly to solve above-mentioned technical problem, and a kind of safe effectively one-way valve of anti-backflow is provided.
Technical problem of the present utility model is mainly solved by following technical proposals:
A kind of safe non-return one-way valve, comprise cylindrical valve body, valve inner is provided with buffer casting, packing holder, described buffer casting, packing holder are separately installed with damping spring and seal ring, described damping spring is also connected and fixed poppet valve core, it is characterized in that: described valve body is also provided with evacuating device, and described valve inner is also provided with check spring seat, described check spring seat is provided with check spring, and described check spring is also fixedly connected with sealing gasket.Effectively strengthened one-way valve check function.
Concrete, described buffer casting, check spring seat, packing holder and seal ring are circular hollow shape, and described sealing gasket is circular solids pad, and its diameter is less than valve interior wall diameter, is greater than buffer casting internal diameter.
Further, described valve body inlet is provided with baffle limiting seat, for supporting evacuating device.
Further, described evacuating device is provided with push rod spring, and push rod spring one end is connected with emptying baffle plate.
Concrete, described emptying baffle plate is circular solids plate, and it fixes on described baffle limiting seat one end by hinges fixing, and when valve body inlet air flow pressure is attenuated to a certain degree, push rod spring can be backed down emptying baffle plate, always valve body import, anti-backflow.
Further, described evacuating device is also provided with flexible adjustment valve, by flexible adjustment valve, can change the space of push rod spring in evacuating device, thereby it is strong and weak according to situation, to change elasticity.
Further, described poppet valve core is cone, and described poppet valve core conical surface diameter is greater than packing holder internal diameter, and described internal diameter of the seal ring is less than packing holder internal diameter.
The beneficial effects of the utility model are: simple in structure, with low cost, promote easily; Secondly, compare general one-way valve, except being provided with seal ring, increased check spring and sealing gasket, further guaranteed the effect of air-flow non-return; Again, the utility model is also provided with evacuating device, and when occurring that above two kinds of non-return seal arrangements all go wrong, evacuating device can be by reflux gas emptying, or connect transfer tank at drain again, safe and effective.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1. valve body; 2. poppet valve core; 3. damping spring; 4. buffer casting; 5. seal ring; 6. packing holder; 7. sealing gasket; 8. check spring; 9. check spring seat; 10. evacuating device; 101. emptying baffle plates; 102. push rod spring; 103. flexible adjustment valves; 104. hinge; 11. baffle limiting seats.
Embodiment
Below by embodiment, and by reference to the accompanying drawings 1, the technical solution of the utility model is described in further detail.
Embodiment: a kind of safe non-return one-way valve, comprise cylindrical valve body 1, valve body 1 inside is provided with buffer casting 4, packing holder 6, described buffer casting 4, packing holder 6 are separately installed with damping spring 3 and seal ring 5, described damping spring 3 is also connected and fixed poppet valve core 2, and described valve body 1 is also provided with evacuating device 10, and described valve body 1 inside is also provided with check spring seat 9, described check spring seat 9 is provided with check spring 8, and described check spring 8 is also fixedly connected with sealing gasket 7.Effectively strengthened one-way valve check function.
Concrete, described buffer casting 4, check spring seat 9, packing holder 6 and seal ring 5 are circular hollow shape, and described sealing gasket 7 is circular solids pad, and its diameter is less than valve body 1 inner diameter, is greater than buffer casting 4 internal diameters.Described valve body 1 inlet is provided with baffle limiting seat 11, for supporting evacuating device 10.Described evacuating device 10 is provided with push rod spring 102, and push rod spring 102 one end are connected with emptying baffle plate 101.Described emptying baffle plate 101 is circular solids plate, it is fixed on described baffle limiting seat 11 one end by hinge 104, and when valve body 1 inlet air flow pressure is attenuated to a certain degree, push rod spring 102 can be backed down emptying baffle plate 101, always valve body 1 import, anti-backflow.
Further, described evacuating device 10 is also provided with flexible adjustment valve 103, by flexible adjustment valve 103, can change the space of push rod spring 102 in evacuating device 10, thereby it is strong and weak according to situation, to change elasticity.Described poppet valve core 2 is cone, and described poppet valve core 2 conical surface diameters are greater than packing holder 6 internal diameters, and described seal ring 5 internal diameters are less than packing holder 6 internal diameters.Must guarantee sealing.
Working principle of the present utility model is: air-flow enters from valve body 1 import (Fig. 1 below), be subject to effects of air pressure, emptying baffle plate 101 is opened import, close drain, gas shock poppet valve core 2, extruding damping spring 3 retractions, then impact sealing gasket 7, extruding check spring 8, gas is gone out from valve body 1 outlet (Fig. 1 top); When inlet pressure dies down, emptying baffle plate 101 is under the effect of push rod spring 102, and valve body 1 import, effectively prevents gas backstreaming.Even if in the situation that seal ring 5 and sealing gasket 7 double-layer seal non-return facilities all lost efficacy, thereby evacuating device 10 also can guarantee that gas does not reflux, source of the gas is polluted or other adverse consequences.The present embodiment is given an example mainly with air-flow greatly but is not done this restriction, and its principles and structure is equally applicable to equipment for liquid transportation.
The present embodiment is the mode of execution of the utility model example; for those skilled in the art; the utility model discloses on the basis of application process and principle; be easy to make various types of improvement or distortion; and be not limited only to the described structure of the above-mentioned embodiment of the utility model; therefore previously described mode is preferred version; and do not there is restrictive meaning; every equivalence of doing according to the utility model changes and revises, all in the scope protection domain of the utility model claims.
Claims (7)
1. a safe non-return one-way valve, comprise cylindrical valve body, valve inner is provided with buffer casting, packing holder, described buffer casting, packing holder are separately installed with damping spring and seal ring, described damping spring is also connected and fixed poppet valve core, it is characterized in that: described valve body is also provided with evacuating device, and described valve inner is also provided with check spring seat, described check spring seat is provided with check spring, and described check spring is also fixedly connected with sealing gasket.
2. a kind of safe non-return one-way valve according to claim 1, it is characterized in that: described buffer casting, check spring seat, packing holder and seal ring are circular hollow shape, described sealing gasket is circular solids pad, and its diameter is less than valve interior wall diameter, is greater than buffer casting internal diameter.
3. a kind of safe non-return one-way valve according to claim 1, is characterized in that: described valve body inlet is provided with baffle limiting seat.
4. a kind of safe non-return one-way valve according to claim 1, is characterized in that: described evacuating device is provided with push rod spring, and push rod spring one end is connected with emptying baffle plate.
5. a kind of safe non-return one-way valve according to claim 4, is characterized in that: described emptying baffle plate is circular solids plate, and it fixes on described baffle limiting seat one end by hinges fixing.
6. according to a kind of safe non-return one-way valve described in claim 1 or 4, it is characterized in that: described evacuating device is also provided with flexible adjustment valve.
7. a kind of safe non-return one-way valve according to claim 1, is characterized in that: described poppet valve core is cone, and described poppet valve core conical surface diameter is greater than packing holder internal diameter, and described internal diameter of the seal ring is less than packing holder internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420333406.7U CN203906892U (en) | 2014-06-23 | 2014-06-23 | Safe one-way check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420333406.7U CN203906892U (en) | 2014-06-23 | 2014-06-23 | Safe one-way check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906892U true CN203906892U (en) | 2014-10-29 |
Family
ID=51781172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420333406.7U Expired - Fee Related CN203906892U (en) | 2014-06-23 | 2014-06-23 | Safe one-way check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612879A (en) * | 2018-05-28 | 2018-10-02 | 江苏安普阀门机械有限公司 | A kind of one-way conduction valve body |
-
2014
- 2014-06-23 CN CN201420333406.7U patent/CN203906892U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612879A (en) * | 2018-05-28 | 2018-10-02 | 江苏安普阀门机械有限公司 | A kind of one-way conduction valve body |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20160623 |