CN2299197Y - Air route membrane one-way valve - Google Patents
Air route membrane one-way valve Download PDFInfo
- Publication number
- CN2299197Y CN2299197Y CN 97234431 CN97234431U CN2299197Y CN 2299197 Y CN2299197 Y CN 2299197Y CN 97234431 CN97234431 CN 97234431 CN 97234431 U CN97234431 U CN 97234431U CN 2299197 Y CN2299197 Y CN 2299197Y
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- Prior art keywords
- valve body
- valve
- central
- hole
- bore
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- Expired - Fee Related
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- 239000012528 membrane Substances 0.000 title claims abstract description 10
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000011805 ball Substances 0.000 description 1
- 230000002357 endometrial effect Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model relates to an air route membrane one-way valve which is composed of a valve body, a valve cover and a membrane, wherein, one end of the valve body [2] is provided with a joint [4] with a central through hole; the other end of the valve body [2] is provided with a threaded hole which is connected with the valve body [2]; one or more than one membrane [3] are arranged in a valve body cavity [5]; the central through hole [9] is arranged on the valve cover [1]; one end of the central through hole [9] is connected with the joint [8], the other end of the central through hole [9] is extended into the valve body cavity [5], and the point of the end head of the other end of the central through hole [9] is provided with one or more than one vent grooves [6]. The membrane [3] is used for realizing the one-way efficacy under the action of the airflow pressure. When the utility model is used in a dried low pressure with no corrosion, and middle and small airflow, the effect is obvious.
Description
The utility model relates to a kind of accessory that is used for cable, optical cable and microwave communication air feed equipment, and relates more specifically to a kind of gas circuit membrane type one-way valve.
The one-way valve that is used for cable, optical cable and microwave telecommunication devices steam line in the background technique roughly has two kinds of pressure spring type, glue pipe types.The former utilizes the elastic force of stage clip to realize purpose, and promptly when suction pressure during greater than the elastic force of stage clip, air pressure backs down the vent plug of being made up of steel ball, rubber and plastic and so on object, the air communication mistake; When suction pressure during less than the elastic force of stage clip, the elastic force of stage clip withstands gas circuit with vent plug, and gas circuit is because of the effect of obstructed realization the " unidirectional " of being obstructed.But the one-way valve of this pressure spring type exists that to open pressure consistency poor, and valve can not be opened and has a pressure blind area under a certain intensity of pressure; In view of the volume of the whole valve of structural relation is not easy to do very for a short time, valve oppositely to close performance also relatively poor.A kind of glue pipe type one-way valve in back is the structural type as shown in traditional sphygmomanometer and bicycle valve then, though it has characteristic of simple structure, but there is the defective of opening the pressure consistency difference too, also exists in addition because of the easily aging defective that makes whole defective valve of used sebific duct.
The utility model purpose is to be to design a kind of one-way valve that utilizes diaphragm to realize the irreversible one-way flow of gas circuit under the pressure difference effect.
The utility model is realized by following design: mainly be made up of valve body, valve gap and diaphragm.One end of valve body is provided with the joint of central through bore, for being communicated with gas circuit; The other end then is provided with tapped hole, for being connected with valve gap; Can be in the valve body chamber therebetween for placing the above diaphragm of a slice or a slice, be used for stifled choke road and air-flow can not be circulated or open gas circuit makes air-flow unimpeded.One end of valve gap is provided with screw thread, to be connected with valve body; The other end of valve gap is that joint is for being communicated with the other end of gas circuit; Valve gap is provided with central through bore, to guarantee the circulation of air-flow.And be provided with one or more vent slot in the end of stretching into the threaded end on the endoceliac valve gap of valve.
Effect of the present utility model is tangible, when suction pressure during greater than backpressure, air-flow is through being located at the central through bore of valve body one end, and wash open and be positioned over stopping of valve body endometrial cavity sheet and enter the valve body chamber, continue after enter the central through bore of being located on the valve gap, be to flow to the other end of gas path pipe after air communication is crossed one-way valve described in the utility model, and can be unblocked.When if described air-flow is big, be positioned over that the endoceliac diaphragm of valve might be pushed to the other end and the aperture that will be located at the central through bore on the valve gap is blocked, this moment, air-flow then can flow into by the vent slot of being located at the end of threaded end on the valve gap in the central through bore on the valve gap, thereby guaranteed that air-flow still can straightwayly circulate.But when air-flow is anti-when flowing, when being reverse air pressure greater than the air pressure of heading, then under action of pressure, will be positioned over the bottom that the endoceliac diaphragm of valve is pushed the valve body chamber to, and the passage that leads to valve body one end central through bore blocked, gas circuit is stopped up, air-flow can not circulate, and also is the not reversible circulation of air-flow, thus realized that the utility model is scheduled to can only one-way flow purpose.
Below in conjunction with accompanying drawing embodiment of the present utility model is described, thereby make CONSTRUCTED SPECIFICATION of the present utility model, characteristics, purpose and advantage clearer and more definite.
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is that the A of valve gap among Fig. 1 is to view.
Among the figure: the 6-vent slot 7-threaded end 8-joint 9-central through bore of 1-valve gap 2-valve body 3-diaphragm 4-joint 5-valve body chamber.
The utility model embodiment's structure now is described in conjunction with the accompanying drawings:
A kind of gas circuit membrane type one-way valve as shown in Figure 1 comprises by valve body 2, valve gap 1 and diaphragm 3 and being formed.One end of described valve body 2 is the joints 4 that are provided with central through bore, can be for being connected with an end of gas circuit; The other end then is provided with tapped hole, to allow valve body 2 and valve gap 1 connect into a complete integral body by being threaded.Place a slice or the diaphragm more than a slice 3 in the valve body chamber 5 in the middle of the valve body 2, described diaphragm 3 is can be upper and lower freely mobile in valve body chamber 5 under the stream pressure effect.Be provided with central through bore 9 on valve gap 1, an end of described valve gap 1 is connected with valve body 2 by valve gap 1 by screw thread and is integral, and the other end of valve gap 1 is that joint 8 is to be connected with the other end of gas circuit.When the central through bore that has air-flow from valve body 2 one ends in the gas circuit flows into the present embodiment, if suction pressure is greater than backpressure, then air-flow is washed open and is positioned over 5 stopping of interior diaphragm of valve body chamber and enters valve body chamber 5, continue after flow into the central through bore be located on the valve gap 1, be to flow to the other end of gas path pipe after air communication is crossed one-way valve described in the utility model, and can be unblocked.And when backpressure during greater than suction pressure, 3 on described diaphragm is pushed to the end that valve body 2 is provided with central through bore joint 4 under the effect of air pressure, and the central through bore of this joint 4 blocked, back draught is blocked and can not circulates, and has promptly embodied present embodiment and has had the effect of one-way flow.The effect that present embodiment uses in not having corrosion and dry low pressure, middle little airflow is significantly, and the performance test surplus 20,000 time does not have any loss, works very well.When described diaphragm 3 was in level, the pressure difference at two ends only needed 0.03kPa promptly effectively; When diaphragm 3 was in plumbness, the pressure difference at two ends was also effective when 0.1kPa.
In order to prevent diaphragm 3 under the effect of positive draft pressure, block the central through bore on the valve gap 1 and influence for the purpose of the circulation of positive draft, the end of the threaded end 7 of the valve gap in stretching into valve body chamber 51 is provided with one or more vent slot 6 as shown in Figure 2.So, even when diaphragm 3 is lived the port closing of the central through bore on the valve gap 1 under the pressure effect of positive draft, in the central through bore that described positive draft still can flow on the valve gaps 1 by described vent slot 6, and normal unimpeded errorless by it.
Claims (2)
1. gas circuit membrane type one-way valve, comprise by valve body, valve gap and diaphragm and being formed, it is characterized in that: an end of described valve body [2] is the joint [4] that is provided with central through bore, the other end then is provided with tapped hole, in its valve body chamber [5], place a slice or the diaphragm more than a slice [3], described valve gap [1] is provided with central through bore [9], and its end is joint [8], and the other end is connected with valve body [2] by screw thread.
2. by the described gas circuit membrane type of claim 1 one-way valve, it is characterized in that: the end of the threaded end [7] of the valve gap [1] in stretching into valve body chamber [5] is provided with one or more vent slot [6].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97234431 CN2299197Y (en) | 1997-04-29 | 1997-04-29 | Air route membrane one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97234431 CN2299197Y (en) | 1997-04-29 | 1997-04-29 | Air route membrane one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2299197Y true CN2299197Y (en) | 1998-12-02 |
Family
ID=33945790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97234431 Expired - Fee Related CN2299197Y (en) | 1997-04-29 | 1997-04-29 | Air route membrane one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2299197Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944448A (en) * | 2012-11-08 | 2013-02-27 | 浙江大学 | Field sampling device for respiratory gases of human body |
| CN107654358A (en) * | 2012-04-19 | 2018-02-02 | 株式会社村田制作所 | Fluid control device |
| CN109158039A (en) * | 2018-09-05 | 2019-01-08 | 中国石油天然气股份有限公司 | Method, device and system for generating ultrasonic microbubble |
| CN112648667A (en) * | 2021-01-14 | 2021-04-13 | 张文杰 | Air exchange type range hood |
-
1997
- 1997-04-29 CN CN 97234431 patent/CN2299197Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654358A (en) * | 2012-04-19 | 2018-02-02 | 株式会社村田制作所 | Fluid control device |
| CN107654358B (en) * | 2012-04-19 | 2020-02-21 | 株式会社村田制作所 | Fluid control device |
| CN102944448A (en) * | 2012-11-08 | 2013-02-27 | 浙江大学 | Field sampling device for respiratory gases of human body |
| CN109158039A (en) * | 2018-09-05 | 2019-01-08 | 中国石油天然气股份有限公司 | Method, device and system for generating ultrasonic microbubble |
| CN109158039B (en) * | 2018-09-05 | 2021-04-30 | 中国石油天然气股份有限公司 | Ultrasonic wave microbubble generation method, device and system |
| US11344824B2 (en) | 2018-09-05 | 2022-05-31 | Petrochina Company Limited | Ultrasonic microbubble generation method, apparatus and system |
| CN112648667A (en) * | 2021-01-14 | 2021-04-13 | 张文杰 | Air exchange type range hood |
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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 |