CN207945330U - A kind of two-way vent valve of waterproof - Google Patents
A kind of two-way vent valve of waterproof Download PDFInfo
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- CN207945330U CN207945330U CN201820302377.6U CN201820302377U CN207945330U CN 207945330 U CN207945330 U CN 207945330U CN 201820302377 U CN201820302377 U CN 201820302377U CN 207945330 U CN207945330 U CN 207945330U
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- gasket
- waterproof
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- valve body
- connector sleeve
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Abstract
The utility model discloses a kind of two-way vent valves of waterproof, including valve body, sealing structure, waterproof ventilated membrane and by axial movement can depressurization pad to the adjusting core of valve seal.The waterproof vent valve has double-direction starting function, when ambient pressure is more than it is internal when so that the inside crush seal pad of adjustment portion improves internal pressure to make the first gas passing gap and extraneous unicom, ambient atmos enter inside；And when internal pressure is excessive so that adjust core and jack up outward, to make the second gas passing gap and extraneous unicom, internal gas that can quickly be discharged.It can remain that pressure balances each other always with atmospheric pressure in case, the electronic equipment to ensure storage is interference-free, keeps its service precision.
Description
Technical field
The utility model is related to waterproof vent valve field more particularly to a kind of two-way vent valves of waterproof.
Background technology
It is frequently necessary to carry rotational moulding case in operation in the wild to hold the equipment that some contain electronic component, therefore rotational moulding
Must assure that inside case cannot enter steam, otherwise easily cause the damage of electronic component or the reduction of service life.But
It is that cannot be completely enclosed again inside equipment, it has to be possible to it is ventilative, so that the air inside equipment is had with the external world and exchange, and also needs
Ensure internal pressure cannot be excessive or too small, need with ambient pressure weighing apparatus at a stalemate, therefore, it is necessary to which being arranged has the function of waterproof and breathable
Valve.Existing waterproof vent valve is mostly one-way exhaust, such as the Chinese invention patent of Patent No. ZL201610012868.2,
It discloses a kind of waterproof vent valve, which can just open when only pressure is excessive in the case, to prevent pressure in babinet
It is excessive, but there is no the functions being pressurized into case when pressure in the case is less than atmospheric pressure, therefore do not ensure that pressure in case
It balances each other always with atmospheric pressure.
Utility model content
The technical problem to be solved by the utility model is to provide one kind having double-direction starting function, remains case internal pressure
Power balances each other always with atmospheric pressure, so as to ensure that a kind of waterproof of the performance of the electronic equipment stored is two-way ventilative
Valve.
In order to solve the above technical problems, technical solution adopted in the utility model is：
A kind of two-way vent valve of waterproof, including valve body, sealing structure and waterproof ventilated membrane；Valve body has along its axial direction
The venting cavity of perforation, the T-shaped structure of valve body includes the connector sleeve being threadedly coupled with seal cavity and is set to outside connector sleeve
The annular gear edge at end, inner face of the annular gear along outside are equipped with a circle groove；Sealing structure, including annular gear is set to along recessed
Sealing ring in slot；Waterproof ventilated membrane is located in the venting cavity of valve body, and is arranged close to the inner end of valve body；It is characterized in that：Valve
Body further includes air permeable plate, and the air permeable plate is located at annular gear along interior, keeps off with annular and fixing along being integrally formed, the air permeable plate
On be furnished with multiple air holes, the annular gear on the inside of the air permeable plate has the circular orientation portion that extends to valve body center along inner edge；
Sealing structure further includes gasket, and the gasket is located in venting cavity, and outer end face and the inner face in circular orientation portion are affixed
It closes, there is axial adjusting gap, the outer diameter of the gasket is less than the internal diameter of connector sleeve, described between gasket and air permeable plate
The inside of gasket is equipped with the gasket support being bonded with it, and gasket support is in hierarchic structure, outer wall in valve body
There is the first radial gas passing gap, the inner wall of the connector sleeve to be equipped with first pressure adjustment sheet, first pressure between wall
The first spring for being supported outwardly against gasket is equipped between power adjustment sheet and gasket support；The vent valve further includes adjusting
Core；Core is adjusted, is arranged in venting cavity and coaxially, activity passes through air permeable plate respectively at the both ends for adjusting core
It is supported with gasket, described adjust between core outer wall and gasket support has the second radial gas passing gap, the adjusting
It is in pyramidal adjustment portion to have on core, has the bellmouth to match with adjustment portion small end, the tune on the gasket
The big end in section portion protrudes from the outside of gasket, and inwardly can be equipped with second in crush seal pad, the inner end for adjusting core
Pressure adjustment sheet is equipped with second spring between the second pressure adjustment sheet and gasket support.
Further technical solution is：Connection screw thread, the first pressure are again provided on the inner wall of the connector sleeve
Adjustment sheet is threadedly coupled with connector sleeve.
Further technical solution is：The outer wall for adjusting core inner end is equipped with connection screw thread, second pressure
Power adjustment sheet is threadedly coupled with core is adjusted.
Further technical solution is：Support ring and pressing ring are threaded on the inner wall of the connector sleeve, it is described
Waterproof ventilated membrane is squeezed between support ring and pressing ring.
Further technical solution is：It is heavy that the outer end face of the gasket support is equipped with the circle to match with gasket
Slot, the gasket are located in round deep gouge and protrude from round deep gouge.
It is using advantageous effect caused by above-mentioned technical proposal：
The waterproof vent valve have double-direction starting function, when ambient pressure be more than it is internal when so that adjustment portion inwardly squeezes
Gasket improves internal pressure to make the first gas passing gap and extraneous unicom, ambient atmos enter inside；And when internal pressure
When power is excessive so that adjust core and jack up outward, to make the second gas passing gap and extraneous unicom, internal gas that can quickly arrange
Go out.It can remain that pressure balances each other always with atmospheric pressure in case, the electronic equipment to ensure storage is interference-free, keeps
Its service precision.
Description of the drawings
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
With reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that described embodiment is a part of the embodiment of the utility model, rather than whole implementation
Example.Based on the only embodiment in the utility model, those skilled in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Many details are elaborated in the following description in order to fully understand the utility model, but this practicality is new
Type can also be implemented using other different from other manner described here, and those skilled in the art can be without prejudice to this reality
With doing similar popularization in the case of novel intension, therefore the utility model is not limited by following public specific embodiment.
As shown in Figure 1, a kind of two-way vent valve of waterproof, including valve body, sealing structure and waterproof ventilated membrane 3.Waterproof is saturating
Air film quotes advanced foreign technology, and expanded PTFE (EPTEF) is carried out nano-sized hydrophobic processing, every square centimeter to have number 10
Hundred million micropores, gas can pass freely through, and to realize airing function, and the harmful substances such as liquid water, water droplet, dust can not lead to
Micropore is crossed, to reach effective dust-proof, water-proof function.
Its venting cavity axially with perforation of the valve body upper edge of the two-way vent valve of the waterproof, the T-shaped structure of valve body, packet
It includes the connector sleeve 11 being threadedly coupled with seal cavity and the annular set on 11 outer end of connector sleeve is kept off along 12, the annular gear is along 12
The inner face in outside is equipped with a circle groove；Sealing structure includes the sealing ring 21 set on annular gear in 12 grooves；Waterproof and breathable
Film 3 is located in the venting cavity of valve body, and is arranged close to the inner end of valve body.
Valve body, further includes air permeable plate 13, and the air permeable plate 13 is located at annular gear along 12, with annular gear along 12 one at
Type is fixed, and multiple air holes are furnished on the air permeable plate 13 so that the gas flowing inside and outside valve body can be realized by air hole.Institute
The annular gear for stating 13 inside of air permeable plate has the circular orientation portion 121 extended to valve body center along 12 inner edges so that annular gear edge
12 endoporus is less than the endoporus of connector sleeve 11, is in contact to form a cascaded surface in the two.
Sealing structure further includes gasket 22, and the gasket 22 is located in venting cavity, outer end face and circular orientation portion
121 inner face fits, the adjusting gap 01 with axial direction between gasket 22 and air permeable plate 13, outside the gasket 22
Diameter is less than the internal diameter of connector sleeve 11, and the inside of the gasket 22 is equipped with the gasket support 23 being bonded with it, the gasket
Support 23 is in hierarchic structure, has the first radial gas passing gap 02 between outer wall and valve interior wall, the connector sleeve 11
Inner wall is equipped with first pressure adjustment sheet 24, is equipped between the first pressure adjustment sheet 24 and gasket support 23 for squeezing outward
First spring 25 of means of press seals advance expenditure support 23, the first spring 25 are in compressive state, are squeezed by the elastic force of the first spring 25
Gasket support 23 so that gasket supports 23 crush seal pads 22, gasket 22 to be fitted closely with circular orientation portion 121, from
And realize the sealing to both ends inside and outside valve body, it prevents liquid water, water droplet or dust from entering in venting cavity and falls on waterproof ventilated membrane 3
Influence its air permeability effect.
The vent valve further includes adjusting core 4, by adjusting the axial movement of core 4, can depressurization pad 22 pairs it is logical
The sealing of air cavity.It is located in venting cavity and is coaxially arranged specifically, adjusts core 4, the both ends difference for adjusting core 4
Activity has radial direction across air permeable plate 13 and gasket support 23, described adjust between 4 outer wall of core and gasket support 23
Second gas passing gap 03, it is in pyramidal adjustment portion 41 to have on the adjusting core 4, is had on the gasket 22 and adjusting
The bellmouth that 41 small end of portion matches, the big end of the adjustment portion 41 protrudes from the outside of gasket 22, and can inwardly squeeze
Gasket 22, the inner end for adjusting core 4 are equipped with second pressure adjustment sheet 42, the second pressure adjustment sheet 42 and gasket
Second spring 43 is equipped between support 23.
The waterproof vent valve have double-direction starting function, when ambient pressure be more than it is internal when, ambient pressure makes adjustment portion
41 inside crush seal pads 22, gasket 22 and gasket support 23 synchronous interior shiftings, the first spring 25 to be further compressed, at this time
There is gap between gasket 22 and circular orientation portion 121, make the first gas passing gap 02 and extraneous unicom, in ambient atmos enter
Internal pressure is improved in portion, is suspension status due to adjusting core 4, the state of second spring 43 is constant, and works as in the process
After inside and outside pressure is equal, as the first spring 25 resets, shifting crush seal pad 22 outside gasket support 23 is promoted to realize again
Sealing state.And when internal pressure is excessive, internal pressure so that adjust core 4 jacks up outward, and adjustment portion 41 is being adjusted at this time
Movable in gap 01, the conical surface of adjustment portion 41 is detached with the bellmouth inner wall of gasket 22, to make the second gas passing gap 03 and
Extraneous unicom, internal gas can quickly be discharged, and in the process, the state of the first spring 25 is constant, and second spring 43 with
It to move outside second pressure adjustment sheet 42 and be compressed, and after inside and outside pressure is equal, as second spring 43 resets, promote to adjust
Portion 41 again crush seal pad 22 and realize sealing.
The waterproof vent valve can remain that pressure balances each other always with atmospheric pressure in case, to ensure the electronics of storage
Equipment is interference-free, keeps its service precision.
When different under service condition (electronic equipment, environment etc.), need to adjust the first spring 25 and second spring 43 exists
Compression situation under original state promotes the unlatching of gasket 22 to generate compression at various pressures.Therefore in connector sleeve
Connection screw thread is again provided on 11 inner wall, the first pressure adjustment sheet 24 is threadedly coupled with connector sleeve 11.By first pressure
24 inside turn of adjustment sheet, then the compressing force of the first spring 25 is smaller under original state (i.e. sealing state), smaller at this time
Ambient pressure then can be achieved in-migration in adjustment portion 41 and open gasket 22；By the 24 outside turn of first pressure adjustment sheet, then first
The compressing force of the first spring 25 is larger under beginning state (i.e. sealing state), and adjustment portion 41 just can be achieved in ambient pressure larger at this time
It inside removes and opens gasket 22.
Connection screw thread, the second pressure adjustment sheet 42 and adjusting are similarly equipped on the outer wall for adjusting 4 inner end of core
Core 4 is threadedly coupled.By the 42 inside turn of second pressure adjustment sheet, then the second spring 43 under original state (i.e. sealing state)
Compressing force it is smaller, adjustment portion 41 outer in-migration unlatching gasket 22 then can be achieved in smaller at this time internal pressure；By second pressure
42 outside turn of adjustment sheet, then the compressing force of second spring 43 is larger under original state (i.e. sealing state), larger at this time
Ambient pressure just can be achieved to remove outside adjustment portion 41 to open gasket 22.
Installation for waterproof ventilated membrane 3 is threaded with support ring 31 and pressing ring 32 on the inner wall of connector sleeve 11,
The waterproof ventilated membrane 3 is squeezed between support ring 31 and pressing ring 32.Valve body uses aluminum alloy materials, and overall weight is light,
It is connected through a screw thread the fixation for realizing air bleeding valve with babinet fixation and waterproof ventilated membrane 3 in valve body, install, debug and replace etc.
All and its conveniently.
In order to remain the concentric fit of gasket support 23 and gasket 22, ensure sealing performance, in sealing advance expenditure
The outer end face of support 23 is equipped with the round deep gouge to match with gasket 22, and the gasket 22 is located in round deep gouge and protrudes from
Round deep gouge.It the above is only the preferred embodiment of the utility model, anyone content according to the present utility model is new to this practicality
A little simple modification, deformation and equivalent replacement that type is made each falls within the scope of protection of the utility model.
Claims (5)
1. a kind of two-way vent valve of waterproof, including valve body, sealing structure and waterproof ventilated membrane (3)；
Valve body axially has the venting cavity of perforation along it, and the T-shaped structure of valve body, includes being threadedly coupled with seal cavity
Connector sleeve (11) and the annular gear edge (12) for being set to connector sleeve (11) outer end, the inner face that the annular is kept off on the outside of (12) are set
There is a circle groove；
Sealing structure, including it is set to sealing ring (21) of the annular gear in (12) groove；
Waterproof ventilated membrane (3) is located in the venting cavity of valve body, and is arranged close to the inner end of valve body；
It is characterized in that：
Valve body further includes air permeable plate (13), and the air permeable plate (13) is located at annular gear in (12), with annular gear along (12) one
Body formed fixation is furnished with multiple air holes on the air permeable plate (13), and the annular gear on the inside of the air permeable plate (13) is in (12)
Edge has the circular orientation portion (121) extended to valve body center；
Sealing structure further includes gasket (22), and the gasket (22) is located in venting cavity, outer end face and circular orientation portion
(121) inner face fits, and has axial adjusting gap (01), the sealing between gasket (22) and air permeable plate (13)
The outer diameter for padding (22) is less than the internal diameter of connector sleeve (11), and the inside of the gasket (22) is equipped with the gasket support being bonded with it
(23), the gasket support (23) is in hierarchic structure, has the first radial gas passing gap between outer wall and valve interior wall
(02), the inner wall of the connector sleeve (11) be equipped with first pressure adjustment sheet (24), the first pressure adjustment sheet (24) with it is close
The first spring (25) for supporting (23) outwardly against gasket is equipped between packing support (23)；
The vent valve further includes adjusting core (4)；
Core (4) is adjusted, is arranged in venting cavity and coaxially, the both ends difference activity for adjusting core (4) passes through
Air permeable plate (13) and gasket support (23), described adjust have radial direction between core (4) outer wall and gasket support (23)
Second gas passing gap (03), it is in pyramidal adjustment portion (41) to have on the adjusting core (4), is had on the gasket (22)
There are the bellmouth to match with adjustment portion (41) small end, the big end of the adjustment portion (41) to protrude from the outside of gasket (22),
And can inwardly crush seal pad (22), it is described adjust core (4) inner end be equipped with second pressure adjustment sheet (42), described second
Second spring (43) is equipped between pressure adjustment sheet (42) and gasket support (23).
2. the two-way vent valve of a kind of waterproof according to claim 1, it is characterised in that：On the inner wall of the connector sleeve (11)
It is again provided with connection screw thread, the first pressure adjustment sheet (24) is threadedly coupled with connector sleeve (11).
3. the two-way vent valve of a kind of waterproof according to claim 2, it is characterised in that：Described adjusting core (4) inner end
Outer wall is equipped with connection screw thread, and the second pressure adjustment sheet (42) is threadedly coupled with core (4) is adjusted.
4. the two-way vent valve of a kind of waterproof according to claim 1, it is characterised in that：On the inner wall of the connector sleeve (11)
It is threaded with support ring (31) and pressing ring (32), the waterproof ventilated membrane (3) is squeezed in support ring (31) and pressing ring
(32) between.
5. the two-way vent valve of a kind of waterproof according to claim 1, it is characterised in that：Outside the gasket support (23)
End face is equipped with the round deep gouge to match with gasket (22), and the gasket (22) is located in round deep gouge and protrudes from circle
Deep gouge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820302377.6U CN207945330U (en) | 2018-03-05 | 2018-03-05 | A kind of two-way vent valve of waterproof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820302377.6U CN207945330U (en) | 2018-03-05 | 2018-03-05 | A kind of two-way vent valve of waterproof |
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| Publication Number | Publication Date |
|---|---|
| CN207945330U true CN207945330U (en) | 2018-10-09 |
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ID=63700534
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820302377.6U Active CN207945330U (en) | 2018-03-05 | 2018-03-05 | A kind of two-way vent valve of waterproof |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059291A (en) * | 2019-11-13 | 2020-04-24 | 威伯科汽车控制系统（中国）有限公司 | Waterproof exhaust apparatus of car |
| CN115325224A (en) * | 2022-07-19 | 2022-11-11 | 深圳市飞荣达科技股份有限公司 | Bidirectional ventilation isolation valve |
-
2018
- 2018-03-05 CN CN201820302377.6U patent/CN207945330U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059291A (en) * | 2019-11-13 | 2020-04-24 | 威伯科汽车控制系统（中国）有限公司 | Waterproof exhaust apparatus of car |
| CN115325224A (en) * | 2022-07-19 | 2022-11-11 | 深圳市飞荣达科技股份有限公司 | Bidirectional ventilation isolation valve |
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