CN201215204Y - Air permeable valve - Google Patents
Air permeable valve Download PDFInfo
- Publication number
- CN201215204Y CN201215204Y CNU2008200360223U CN200820036022U CN201215204Y CN 201215204 Y CN201215204 Y CN 201215204Y CN U2008200360223 U CNU2008200360223 U CN U2008200360223U CN 200820036022 U CN200820036022 U CN 200820036022U CN 201215204 Y CN201215204 Y CN 201215204Y
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- CN
- China
- Prior art keywords
- screw
- hole
- vent valve
- waterproof
- utility
- 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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- Measuring Fluid Pressure (AREA)
Abstract
A breather valve relates to the instrumentation field, which comprises a headless screw. A through hole is arranged between two ends of the screw. The headless screw is a socket screw. A waterproof breather sheet is covered on the through hole. The utility model has the advantage of simple structure, easy manufacturing and easy obtaining on the base of the existing screw, and can prevent dust or water entering instruments and meters, thereby guaranteeing normal operation of the instruments and meters.
Description
Technical field
The present invention relates to instrument field, specifically is a kind of vent valve that can water proof and dust proof.
Background technique
In some instrument and apparatus, inner air when the product proper functioning makes the result who measures inaccurate because expansion or compression make inside and outside air pressure unanimity, for anti-this situation, usually need to use vent valve, keep inside and outside air pressure balance, make product energy proper functioning.And common vent valve generally is to be provided with a hole or porous on product, and its structure is single, and the normal phase is exposed in the air and is stopped up by airborne dust or foreign material easily, thereby water or water vapor also enter easily and influence its proper functioning in the product.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, improve vent valve deficiency in the past, the utility model provides a kind of new-type vent valve, and it not only has ventilate function, and it is as follows also to have the concrete solution of dustproof and waterproof function:
A kind of vent valve comprises headless screw, is provided with through hole between the screw two ends; Described headless screw is the interior angle screw; Be covered with the waterproof and breathable sheet on the described through hole.
Described through hole has 1 at least, can be according to the difference of collocation instrumentation, be provided with 1,2,3 or porous more; Because the release of pressure hole of existing instrument mostly is 1, so 1 of through hole operated by rotary motion.The aperture of through hole is selecting different inner diameters according to the difference of collocation instrumentation.Described interior angle screw is interior angle screws such as interior hexagonal, Nei Sijiao, interior anise or interior triangle screw.The material that is described waterproof and breathable sheet is that EPTFE or other have the waterproof and breathable characteristic, and corrosion-resistant material.Simple in order to assemble, described waterproof and breathable sheet is located at the tail end of screw, covers logical valve, also can be located at the waterproof and breathable sheet in the through hole.
The beneficial effects of the utility model are, and are simple in structure, easy processing, even can on the basis of existing screw, process and obtain; Can prevent that dust or water from entering instrument and apparatus inside, guarantee the instrument and apparatus proper functioning.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model head top surface schematic representation
Fig. 3 is the utility model sectional drawing
Fig. 4 is the utility model embodiment user mode schematic representation
The screw 7 of the release of pressure hole 5 of inner hexagonal hole 1, through hole 2, screw thread 3, Pressure probe 4, Pressure probe, EPTFE pad 6, Pressure probe
Specific implementation method
The utility model is described in further detail for example to be applied to Pressure probe 4 below in conjunction with accompanying drawing and the utility model:
Structure of the present utility model is according to shown in Figure 1, is provided with a through hole between the screw two ends of a socket head screw without a head, and the aperture in the release of pressure hole 5 of aperture and Pressure probe is consistent.The utility model is provided with standard thread 3 all over the body, and is corresponding with the screw 7 of Pressure probe.As shown in Figure 4, be provided with the EPTFE pad, be close to and cover on the through hole 2 at the tail end of socket head screw without a head.
When Pressure probe 4 work, keep inside and outside air pressure balance by vent valve, prevent inner air because expansion or compression make inside and outside air pressure unanimity, make the result who measures inaccurate, make Pressure probe 4 proper functioning.
Claims (6)
1, a kind of vent valve is characterized in that comprising headless screw, is provided with through hole between the screw two ends; Described headless screw is the interior angle screw; Be covered with the waterproof and breathable sheet on the described through hole.
2, vent valve according to claim 1 is characterized in that described through hole has 1 at least.
3, vent valve according to claim 1 and 2 is characterized in that described through hole has 1.
4, vent valve according to claim 3 is characterized in that described interior angle screw is a socket head screw.
5, vent valve according to claim 4, the material that it is characterized in that described waterproof and breathable sheet is EPTFE.
6, vent valve according to claim 5 is characterized in that described waterproof and breathable sheet is located at the tail end of screw, covers through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200360223U CN201215204Y (en) | 2008-05-22 | 2008-05-22 | Air permeable valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200360223U CN201215204Y (en) | 2008-05-22 | 2008-05-22 | Air permeable valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201215204Y true CN201215204Y (en) | 2009-04-01 |
Family
ID=40520408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200360223U Expired - Fee Related CN201215204Y (en) | 2008-05-22 | 2008-05-22 | Air permeable valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201215204Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868131A (en) * | 2010-05-19 | 2010-10-20 | 深圳市维西科技有限公司 | Waterproof vent valve and encapsulation method thereof |
| CN104729350A (en) * | 2013-12-19 | 2015-06-24 | 珠海格力电器股份有限公司 | Sealing valve and heat storage device with same |
| CN105927772A (en) * | 2016-06-14 | 2016-09-07 | 深圳市宏电技术股份有限公司 | Waterproof and breathable structure based on ePTFE microporous membrane and differential pressure balance technology |
-
2008
- 2008-05-22 CN CNU2008200360223U patent/CN201215204Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868131A (en) * | 2010-05-19 | 2010-10-20 | 深圳市维西科技有限公司 | Waterproof vent valve and encapsulation method thereof |
| CN101868131B (en) * | 2010-05-19 | 2012-05-30 | 深圳市维西科技有限公司 | Waterproof vent valve and encapsulation method thereof |
| CN104729350A (en) * | 2013-12-19 | 2015-06-24 | 珠海格力电器股份有限公司 | Sealing valve and heat storage device with same |
| CN104729350B (en) * | 2013-12-19 | 2017-11-21 | 珠海格力电器股份有限公司 | Sealing valve and heat storage device with same |
| CN105927772A (en) * | 2016-06-14 | 2016-09-07 | 深圳市宏电技术股份有限公司 | Waterproof and breathable structure based on ePTFE microporous membrane and differential pressure balance technology |
| CN105927772B (en) * | 2016-06-14 | 2019-04-19 | 深圳市宏电技术股份有限公司 | A kind of waterproof and breathable structure based on ePTFE microporous barrier and pressure balance technology |
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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: 20090401 Termination date: 20160522 |