CN209012484U - A kind of explosion-proof valve with return-stopping function - Google Patents
A kind of explosion-proof valve with return-stopping function Download PDFInfo
- Publication number
- CN209012484U CN209012484U CN201821141510.0U CN201821141510U CN209012484U CN 209012484 U CN209012484 U CN 209012484U CN 201821141510 U CN201821141510 U CN 201821141510U CN 209012484 U CN209012484 U CN 209012484U
- Authority
- CN
- China
- Prior art keywords
- spool
- explosion
- elastic element
- water outlet
- proof valve
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of explosion-proof valves with return-stopping function, including valve body, told valve body is equipped with inlet and outlet, and affiliated valve inner is equipped with spool and elastic element, described spool one end and the water outlet are fitted close, and the spool other end and the water inlet are fitted close.When the normal feed flow of pipeline, spool stress, elastic element retraction, spool is by the pressure promotion of liquid, and opening conduits access, liquid is entered explosion-proof valve by water inlet and can be flowed out from water outlet at this time.When liquid working pressure is close or larger than the rated value of explosion-proof valve, the crunch generated pushes spool that the elastic force of elastic element is overcome to travel forward, and fits closely the outer peripheral surface of spool and the inner peripheral surface of valve body water outlet, blocks access, achievees the purpose that cut-off.And after feed flow stops, spool can be pushed into water inlet by the elastic force of elastic element, be bonded close-fitting spool one end and water inlet, have the function that the liquid countercurrent for preventing from flowing through explosion-proof valve.
Description
Technical field
The utility model relates to tube connection piece, especially a kind of explosion-proof valve with return-stopping function.
Background technique
Currently, the junction in pipe-line system carries out security control, the patent No. frequently with explosion-proof valve
CN201320054665.1 utility model disclose a kind of explosion-proof valves, when the operating pressure of pipe-line system reaches at or above
When the rated value of explosion-proof valve, so that pipeline is not enough to the medium by big flow in a short time, to cause in system
When the pressure in portion increases suddenly, the crunch generated pushes spool that the elastic force of spring is overcome to travel forward, and makes the outer of spool
The inner conical surface of the conical surface and valve body fits closely, and blocks access, achievees the purpose that cut-off.After system pressure decline, due to spring
Effect, spool will pulled back from original position.This design presently, there are the shortcomings that be, stop supply water after, be easy to cause in pipeline
Fluid countercurrent current, when special pipeline is for supplying water to high-level user, backflow phenomena is more obvious.
Utility model content
The utility model is intended to solve the reflux problem for stopping occurring after feed flow at least to a certain extent.For this purpose, this reality
A kind of explosion-proof valve with return-stopping function is proposed with novel.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of explosion-proof valve with return-stopping function, including valve body, the valve body are equipped with inlet and outlet, the valve
Internal portion is equipped with spool and elastic element, and water outlet is fixed in described elastic element one end, and the other end is equipped with the valve
Core, described spool one end and the water outlet are fitted close, and the spool other end and the water inlet are fitted close.
As an improvement of the above technical solution, washer is provided between the spool and water inlet.
As a further improvement of the above technical scheme, the material that the washer uses includes rubber.
Further, the elastic element includes spring.
Further, oblique equipped with mutually matched taper close to one end of water outlet with the spool on the inside of the water outlet
Face.
The beneficial effects of the utility model are: explosion-proof valve core is installed on elastic element, one end of spool and water outlet
It is fitted close, the other end and water inlet are fitted close.When the normal feed flow of pipeline, spool stress, elastic element retraction, spool quilt
The pressure of liquid pushes, and opening conduits access, liquid is entered explosion-proof valve by water inlet and can be flowed out from water outlet at this time.Work as liquid
When operating pressure is close or larger than the rated value of explosion-proof valve, the crunch promotion spool generated overcomes the elastic force of elastic element
It travels forward, fits closely the outer peripheral surface of spool and the inner peripheral surface of valve body water outlet, block access, achieve the purpose that cut-off.
And after feed flow stops, spool can be pushed into water inlet by the elastic force of elastic element, make close-fitting spool one end and water inlet
Fitting, has the function that the liquid countercurrent for preventing from flowing through explosion-proof valve.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the utility model mounting structure schematic diagram.
Specific embodiment
Referring to Fig.1, a kind of explosion-proof valve with return-stopping function of the utility model, including valve body 1 are set on the valve body 1
There are water inlet 2 and water outlet 3, spool 4 and elastic element 5 are installed inside the valve body 1, described 5 one end of elastic element is fixed
At water outlet 3, the other end is equipped with the spool 4, and described 4 one end of spool and the water outlet 3 are fitted close, the spool
1 other end and the water inlet 2 are fitted close.When the normal feed flow of pipeline, 4 stress of spool, elastic element 5 bounces back, 5 quilt of spool
The pressure of liquid pushes, opening conduits access, and liquid is entered explosion-proof valve by water inlet 2 and can be flowed out from water outlet 3 at this time.Work as liquid
When body running pressure is close or larger than the rated value of explosion-proof valve, the crunch generated pushes spool 4 to overcome elastic element 5
Elastic force travels forward, and fits closely the outer peripheral surface of spool 4 and the inner peripheral surface of water outlet 3, blocks access, reaches the mesh of cut-off
's.And after feed flow stops, spool 4 can be pushed into water inlet 2 by the elastic force of elastic element 5, make close-fitting 4 one end of spool and
Water inlet 2 is bonded, and has the function that the liquid countercurrent for preventing from flowing through explosion-proof valve.
As an improvement of the above technical solution, washer 6 is provided between the spool 4 and water inlet 2.This design can make valve
The cooperation of core 4 and water inlet 2 when no liquid flows more closely, seals be more good.
As a further improvement of the above technical scheme, the material that the washer 6 uses includes rubber.Using rubber material
Washer 6 have buffering and pressure resistance characteristic, can further improve the leakproofness and reliability of product.Preferably, washer 6 can be adopted
With EPDM rubber, there is heat resistance, resistance to ag(e)ing and chemical-resistant resistance characteristic, this explosion-proof valve can be made for special pipeline.
Further, the elastic element 5 includes spring, keeps the compression of elastic element 5 and rebound more fast and accurate.
Further, 3 inside of water outlet is equipped with mutually matched taper close to one end of water outlet 3 with the spool 4
Inclined-plane 7.When loine pressure is larger, during liquid-driving spool 4 is approached to water outlet 3, since elastic element 5 is in liquid
Shaking is easy to happen under shock, spool 4 may be hit with 3 side wall of water outlet, this not only will affect the service life of device, but also
Spool 4 may be enabled to be bonded not in time with water outlet 3, in turn result in the serious consequences such as pipeline breaking.After being cooperated using inclined-plane, elasticity
The offset of spool caused by element 5 shakes can be corrected by tapered slope 7, will not influence the time of explosion-proof valve closure, so that entire dress
It sets response in time, is swift in response and solid and reliable.
The above specific structure and dimension data are illustrated to the preferred embodiment of the utility model, but this reality
It is not limited to the specific embodiments with novel creation, those skilled in the art are in the premise without prejudice to the spirit of the present invention
Various equivalent deformation or replacement can be also made down, these equivalent deformations or replacement are all contained in the claim of this application and are limited
In fixed range.
Claims (5)
1. a kind of explosion-proof valve with return-stopping function, including valve body (1), the valve body (1) is equipped with water inlet (2) and water outlet
(3), spool (4) and elastic element (5) be installed inside the valve body (1), described elastic element (5) one end be fixed on it is described out
At the mouth of a river (3), the other end is equipped with the spool (4), and described spool (4) one end and the water outlet (3) are fitted close, special
Sign is: spool (4) other end and the water inlet (2) are fitted close.
2. the explosion-proof valve according to claim 1 with return-stopping function, it is characterised in that: the spool (4) and it is described into
Washer (6) are provided between the mouth of a river (2).
3. the explosion-proof valve according to claim 2 with return-stopping function, it is characterised in that: the material that the washer (6) uses
Material includes rubber.
4. the explosion-proof valve according to claim 1 with return-stopping function, it is characterised in that: the elastic element (5) includes
Spring.
5. the explosion-proof valve according to claim 1 with return-stopping function, it is characterised in that: on the inside of the water outlet (3) and
The spool (4) is equipped with mutually matched tapered slope (7) close to the one end of the water outlet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821141510.0U CN209012484U (en) | 2018-07-18 | 2018-07-18 | A kind of explosion-proof valve with return-stopping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821141510.0U CN209012484U (en) | 2018-07-18 | 2018-07-18 | A kind of explosion-proof valve with return-stopping function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209012484U true CN209012484U (en) | 2019-06-21 |
Family
ID=66830193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821141510.0U Active CN209012484U (en) | 2018-07-18 | 2018-07-18 | A kind of explosion-proof valve with return-stopping function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209012484U (en) |
-
2018
- 2018-07-18 CN CN201821141510.0U patent/CN209012484U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209012484U (en) | A kind of explosion-proof valve with return-stopping function | |
| CN207470860U (en) | Automatic pressure reducing valve | |
| CN204805632U (en) | One -way valve | |
| CN103335137A (en) | Bottom valve of compensation type sealing structure | |
| CN201373146Y (en) | Multifunctional anti-drip non-return combined valve | |
| CN201779316U (en) | Rubber check valve | |
| CN201620855U (en) | Adjustable water nozzle for low-water injection rate water injection wells of oil fields | |
| CN206246751U (en) | A kind of magnetic valve of integrated unidirectionally controlled function | |
| CN208793699U (en) | A kind of valve seat construction of holder combination lip packing | |
| CN208474543U (en) | A kind of Buffer valve structure | |
| CN106885020A (en) | A kind of adjustable type water conservancy check-valves | |
| CN209196189U (en) | A kind of axial flow type check valve that sealing effect is good | |
| CN203963142U (en) | A kind of oil circuit one-way valve | |
| CN201866349U (en) | Multifunctional loose-joint type drip-leakage-preventing integrated check valve | |
| CN206468855U (en) | Ball check valve | |
| CN208397389U (en) | Unidirectional plug screw valve | |
| CN201787142U (en) | Check valve | |
| CN202612730U (en) | Reducing filter check valve | |
| CN2089105U (en) | Check valve | |
| CN206036317U (en) | Novel check valve | |
| CN206918347U (en) | Straight-through valve | |
| CN205244505U (en) | Check valve | |
| CN201487310U (en) | Check valve | |
| CN210716135U (en) | Rubber lamella check valve of valve pin structure | |
| CN212080267U (en) | Full-guide damping angle type check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |