CN2771595Y - Non-water return-air valve for running water pipe - Google Patents
Non-water return-air valve for running water pipe Download PDFInfo
- Publication number
- CN2771595Y CN2771595Y CN 200520000401 CN200520000401U CN2771595Y CN 2771595 Y CN2771595 Y CN 2771595Y CN 200520000401 CN200520000401 CN 200520000401 CN 200520000401 U CN200520000401 U CN 200520000401U CN 2771595 Y CN2771595 Y CN 2771595Y
- Authority
- CN
- China
- Prior art keywords
- valve
- water
- water pipe
- running water
- valve body
- 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
Links
Images
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a stop-water return-air valve for running water pipes, which is special for running water pipelines of an intermittent water supply system; connection threads are arranged at both ports of a tubular valve body; a unidirectional non-return valve is arranged on the side wall of the valve body; the valve body is conveniently connected between a running water pipe and a water tap by the connection threads at the ports. When the water supply system works, the running water with pressure blocks the unidirectional non-return valve; the running water pipe can be normally used. When the water supply system stops working, the pressure of the running water is gradually reduced; the unidirectional non-return valve is opened so that the inner cavity of the valve body and the running water pipe are communicated with atmosphere; rest water in the water pipe automatically flows back, which avoids the water pipe from being frozen. The utility model has the advantages of simple structure and convenient disassembly, assembly and use, and relieves labor burden for people at cold areas in winter every day.
Description
Technical field
The utility model relates to a kind of venting valve, and specifically a kind of running water pipe of being interrupted on the water system tap water pipe line of being exclusively used in is with the return-air valve of cutting off the water.
Background technique
At present, the Rural water supply system generally adopts Timing water supply system, and each tame water tap is located at outdoor more.When water tap was in closed condition, water tap and flow pipe inner chamber were in sealing state, and after water system was cut off the water, the water in water pipe and water tap pipe downstream flowed away.Water in wintry weather cold, outdoor water tap and water pipe freezes and can not normally use.When serious even can cause water pipe from freezing crack.People have to etc. to go water tap is opened after system stops to supply water again for this reason, and it is communicated with atmosphere, and under the atmospheric pressure effect, the interior water of water tap and water pipe pipe downstream flows back to, and is commonly called as " venting ".In the real life, people are busy with other affairs, often this thing are dredged and forget, and therefore, though this minor matter is simple, have become the burden greatly of one in people's life.
The model utility content
The purpose of this utility model will provide a kind of running water pipe with the return-air valve of cutting off the water exactly, to stop the back return-air automatically that supplies water in system, water is flowed away along former road, with the normal use of assurance running water pipe, and prevents that water pipe from freezing crack from damaging.
The utility model is achieved in that the two-port at tubular valve body is shaped on connecting thread, and the sidewall of valve body is provided with unidirectional check valve.Valve body can be connected between running water pipe and the water tap easily by the connecting thread of port.During system water supply, tap water with pressure blocks unidirectional check valve, and running water pipe can normally use.After system stops to supply water, the pressure of tap water progressively reduces, when pressure during less than the opening force of unidirectional check valve, unidirectional check valve is opened, body cavity and water supply pipe are communicated with atmosphere, water in the water pipe refluxes voluntarily, thus emptying the water in the water pipe of top, ground, avoided freezing the generation of water pipe phenomenon thus.
The utility model also can be realized like this: valve body is the threeway tubulose, and unidirectional check valve is the valve gap that spins on the arm of three-way pipe valve body, is installed with valve rod in the central through bore of valve gap, the outer termination bounding means of valve rod, and the inner cover sealing gasket of valve rod also connects valve block.Adopt this structure, the valve gap inner chamber communicates with ambient atmosphere by the central through bore on the valve gap.During use, valve body and water pipe are joined.During system water supply, under the effect of pressure of supply water, the tube wall end face of valve block and sealing gasket and valve gap compresses, and is the boundary with the valve block, forms inside and outside seal isolation state.After system stops to supply water, pressure of supply water disappears in the water pipe, under the action of gravity of valve block, valve block and sealing gasket break away from the housing end face of valve gap, because the position-limiting action of bounding means, it remains on the position that certain interval is arranged with the valve gap end face, thereby water pipe is communicated with the valve gap chamber pressure, ambient atmosphere is entered in the water pipe, thereby has realized automatic ventilatory function.
The utility model also can be realized like this: valve body is the threeway tubulose, unidirectional check valve is to be connected with connecting tube on the arm of three-way pipe valve body, the end of connecting tube spins and is provided with the end cap of vent, inwall at arm is shaped on limiting stopper, inwall at connecting tube is shaped on the ring-type banking stop, be provided with valve block and cyclic sealing gasket between limiting stopper and the ring-type banking stop, card has spring between valve block and the end cap.Adopt this structure, the connecting tube inner chamber communicates with ambient atmosphere by the end cap upper vent hole.During use, valve body and water pipe are joined.Under the effect of pressure of supply water, the end face of valve block and sealing gasket and ring-type banking stop compresses, and forms the seal isolation state.After system stopped to supply water, under the elastic force effect of the gravity of valve block and spring, valve block was descending and terminate in the limiting stopper place.Like this, ambient atmosphere enters valve body by the center hole of end cap vent, ring plate and cyclic sealing gasket and the gap of valve block and branch pipe wall, thereby realizes automatic ventilatory function.
When the utility model uses, need not reequip, only need between water pipe and water tap, to install this return-air valve additional and can realize automatic return-air function existing water pipe and water tap.The utility model is simple in structure, dismounting, easy to use, the hardship of having exempted necessary work cold area people every day in winter.
Description of drawings
Fig. 1-Fig. 3 is the structural representation of three kinds of different mode of executions of the utility model.
Embodiment
As shown in Figure 1 and Figure 2, valve body 1 is the threeway tubulose, and two straight-through ports are shaped on connecting thread.Be connected with valve gap 2 on the valve body arm, the center of valve gap 2 has through hole, is installed with valve rod 4 in the through hole, the outer termination finite place piece 3 of valve rod 4, and the inner of valve rod 4 is connected to valve block 7 and socket sealing gasket 6.Best spring 5 of socket on valve rod is so that unidirectional check valve can effectively be opened.The arm of valve body 1 is vertical with straight-through tube among Fig. 1, and this structure is suitable for being installed on the water pipe of substantially horizontal, can prevent effectively that the water in the running water pipe from leaking through the ventilation channel.The arm of valve body 1 is tilted among Fig. 2, and this structure is suitable for being installed on the water pipe of vertical direction, to avoid managing the internal memory leaked water.
Shown in Figure 3 is another kind of mode of execution of the present utility model, connecting tube 11 spins on the arm of threeway tubular valve body 1, the end cap 8 that the end of connecting tube 11 spins and establishes vent 9, inwall at arm 1 is shaped on limiting stopper 12, inwall at connecting tube is shaped on ring-type banking stop 10, be provided with valve block 7 and cyclic sealing gasket 6 between limiting stopper 12 and the ring-type banking stop 10, card has spring 5 between valve block 7 and the end cap 9.This structure dismounting maintenance is more convenient.
Claims (4)
1, a kind of running water pipe is characterized in that with the return-air valve of cutting off the water the two-port of tubular valve body (1) is shaped on connecting thread, and the sidewall of valve body (1) is provided with unidirectional check valve.
2, running water pipe according to claim 1 is with the return-air valve of cutting off the water, it is characterized in that valve body (1) is the threeway tubulose, unidirectional check valve is the valve gap (2) that spins on the arm of threeway tubular valve body (1), be installed with valve rod (4) in the central through bore of valve gap, the outer termination bounding means (3) of valve rod (4), the inner cover sealing gasket (6) of valve rod (4) also connects valve block (7).
3, running water pipe according to claim 2 is characterized in that going up socket spring (5) at valve rod (4) with the return-air valve of cutting off the water.
4, running water pipe according to claim 1 is with the return-air valve of cutting off the water, it is characterized in that valve body (1) is the threeway tubulose, unidirectional check valve is to be connected with connecting tube (11) on the arm of threeway tubular valve body (1), the end cap (8) that the end of connecting tube (11) spins and is provided with vent (9), inwall at arm is shaped on limiting stopper (12), inwall at connecting tube (11) is shaped on ring-type banking stop (10), be provided with valve block (7) and cyclic sealing gasket (6) between limiting stopper (12) and the ring-type banking stop (10), card has spring (5) between valve block (7) and the end cap (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520000401 CN2771595Y (en) | 2005-02-05 | 2005-02-05 | Non-water return-air valve for running water pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520000401 CN2771595Y (en) | 2005-02-05 | 2005-02-05 | Non-water return-air valve for running water pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2771595Y true CN2771595Y (en) | 2006-04-12 |
Family
ID=36705385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520000401 Expired - Fee Related CN2771595Y (en) | 2005-02-05 | 2005-02-05 | Non-water return-air valve for running water pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2771595Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705546A (en) * | 2012-05-29 | 2012-10-03 | 江南工业集团有限公司 | Inserting-type emergency cut-off valve for liquefied natural gas cylinder |
| US20180282932A1 (en) * | 2015-09-28 | 2018-10-04 | Qingdao Haier Drum Washing Machine Co. Ltd. | Spray system of washing machine and washing machine |
-
2005
- 2005-02-05 CN CN 200520000401 patent/CN2771595Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705546A (en) * | 2012-05-29 | 2012-10-03 | 江南工业集团有限公司 | Inserting-type emergency cut-off valve for liquefied natural gas cylinder |
| US20180282932A1 (en) * | 2015-09-28 | 2018-10-04 | Qingdao Haier Drum Washing Machine Co. Ltd. | Spray system of washing machine and washing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210397724U (en) | Vacuum discharge valve | |
| CN2771595Y (en) | Non-water return-air valve for running water pipe | |
| CN202158240U (en) | Valve connecting port | |
| CN102192332B (en) | Anti-siphon vacuum break valve | |
| CN2443046Y (en) | Installation for foster and water diversion | |
| CN201159308Y (en) | Four-way ball valve | |
| CN2876472Y (en) | Cylinder shaped free lateral turning door beat valve | |
| CN2849148Y (en) | Freezing proof valve | |
| CN204553946U (en) | A kind of liquid conveying system preventing frost crack pipe | |
| CN2876473Y (en) | Square shaped free lateral turning door beat valve | |
| CN202451885U (en) | Vacuum circuit breaking valve | |
| CN220523369U (en) | Water inlet valve for wafer cleaning mechanism | |
| CN204533608U (en) | Anti-freezing water valve assembly | |
| CN2310205Y (en) | Air insulating valve | |
| CN2869466Y (en) | Fully-automatic air evacuation valve for heating pipeline | |
| CN220060764U (en) | Outdoor frost valve and mounting structure | |
| CN200940714Y (en) | Electric control anti-pollution isolated non-return valve | |
| CN2916296Y (en) | Check valve | |
| CN204004946U (en) | A kind of simple and easy drainage pipe joint | |
| CN2695876Y (en) | Water-saving anti-freezing solar water heater | |
| CN217355699U (en) | Intercooler drain valve and intercooler | |
| CN215172448U (en) | Water-saving valve convenient to install | |
| CN214302114U (en) | Lower open gate that intelligence integration vatch basin used | |
| CN102563134A (en) | Vacuum circuit breakage valve | |
| CN213018928U (en) | Low-temperature anti-freezing pipeline protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |