CN105889562A - Piston type explosion-proof and water-proof ventilation valve - Google Patents
Piston type explosion-proof and water-proof ventilation valve Download PDFInfo
- Publication number
- CN105889562A CN105889562A CN201610359201.XA CN201610359201A CN105889562A CN 105889562 A CN105889562 A CN 105889562A CN 201610359201 A CN201610359201 A CN 201610359201A CN 105889562 A CN105889562 A CN 105889562A
- Authority
- CN
- China
- Prior art keywords
- cylinder block
- piston
- piston piece
- proof
- explosion
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
- F16K24/04—Devices, e.g. valves, for venting or aerating enclosures for venting only
Abstract
A piston type explosion-proof and water-proof ventilation valve comprises an air cylinder body, vent holes formed in the air cylinder body and a water-proof ventilation film arranged between an inner cavity of the air cylinder body and the vent holes. An external thread is arranged at the bottom end of the air cylinder body. The piston type explosion-proof and water-proof ventilation valve further comprises a piston piece located in the inner cavity of the air cylinder body, an elastic reset piece arranged between the air cylinder body and the piston piece and pressure relief holes formed in the air cylinder body. According to the piston type explosion-proof and water-proof ventilation valve, the piston structural style is adopted; when the internal pressure of equipment is within a safety value range, the interior of the equipment communicates with the outside through the water-proof ventilation film; and when the internal pressure of the equipment exceeds a safety value, the force of the internal pressure applied to the piston piece is larger than the pressure of the elastic reset piece, the piston piece moves to enable the pressure relief holes to communicate with the interior of the equipment, the internal pressure is discharged through the pressure relief holes, it is guaranteed that the air pressure of the interior of the equipment and the air pressure of the outside are balanced, and the problem that an explosion happens due to the too large internal pressure of the equipment is solved.
Description
Technical field
The present invention relates to the improved structure of a kind of waterproof vent valve.
Background technology
For the equipment that open air use contains electronic devices and components, inside must assure that and can not enter steam, the most easily causes damaging or the reduction in service life of electronic devices and components.But device interior can not completely enclose again, it has to be possible to ventilative, make the air of device interior have exchange with the external world, and also need to ensure that internal pressure can not be too big, therefore, it is necessary to arrange the valve with waterproof and breathable function.
Summary of the invention
The technical problem to be solved in the present invention is to provide and a kind of is prevented from the internal pressure explosion-proof waterproof vent valve of excessive piston type.
For above-mentioned technical problem, the present invention realizes in the following ways:
A kind of explosion-proof waterproof vent valve of piston type, the passage including a cylinder block, being arranged in cylinder block and waterproof ventilated membrane, this cylinder block bottom is provided with external screw thread, also includes:
One piston piece, is positioned in cylinder block inner chamber, and its outer wall seals sliding contact with cylinder block internal chamber wall；
One elastic reset part, is arranged between cylinder block and piston piece, for stablizing of piston piece holding position under a certain pressure;
Relief hole, is arranged in cylinder block, when in cylinder block, pressure exceedes preset value unlatching.
Wherein, described piston piece is internally provided with the pore of connection cylinder block inner chamber and passage, and waterproof ventilated membrane is covered on pore or on passage.
Wherein, described elastic reset part is a spring being in compressive state, and spring one end top is pressed on cylinder block inwall, and other end top is pressed on piston piece end, and original state piston piece blocks up on relief hole or is positioned at relief hole near cylinder block bottom position.
And, cylinder block inner chamber top is provided with retainer ring, piston piece top extend retainer ring inwall and with retainer ring inwall sliding contact, spring one end top is pressed on retainer ring end, and other end top is pressed on piston piece end.
And, described passage is positioned in retainer ring or is positioned at cylinder block sidewall at retainer ring.
And, between piston piece and cylinder block internal chamber wall, it is provided with sealing ring in cylinder block external screw thread position.
The present invention uses piston structure form, when device interior pressure is in the range of security value (s), device interior realizes being in communication with the outside by waterproof ventilated membrane, when device interior pressure is beyond security value (s), internal pressure puts on the power on piston piece and is more than return springs pressure, and piston piece moves, relief hole is made to connect with device interior, internal pressure is discharged by relief hole, it is ensured that device interior balances with ambient pressure, prevents device interior pressure excessive and the problems such as blast occur.When device interior pressure recovers normal value, under return springs pressure, piston piece resets, and blocks relief hole, prevents aqueous vapor from passing through inside relief hole access arrangement, and whole valve restPoses.Although the present invention is through the process of pressure release, the most do not affect the normal use of valve, i.e. this valve is reusable.
Accompanying drawing explanation
Accompanying drawing 1 is the embodiment of the present invention one original state structural representation.This status devices is internal to be in communication with the outside by waterproof ventilated membrane, and air can be inside access arrangement, and aqueous vapor cannot be introduced into device interior.
Accompanying drawing 2 is the present embodiment one pressure release status architecture schematic diagram.This status devices is internal to be in communication with the outside by relief hole, makes device interior pressure moment be released.
To be the present embodiment one device interior poor with ambient pressure and ventilative variation diagram for accompanying drawing 3.
Accompanying drawing 4 is another embodiment of the present invention original state structural representation.Passage is arranged on retainer ring top by this embodiment.
Accompanying drawing 5 is pressure release status architecture schematic diagram in accompanying drawing 4.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with specific embodiment and accompanying drawing, present configuration principle is further described in detail:
The explosion-proof waterproof vent valve of piston type that the present embodiment discloses has use safety, can automatically reset reusable waterproof vent valve.
This passage 2 of passage 2(that the explosion-proof waterproof vent valve of this piston type includes a cylinder block 1, be arranged in cylinder block 1 is be distributed in cylinder block sidewall 2) and this relief hole of relief hole 6(be distributed in cylinder block sidewall six), waterproof ventilated membrane 3, piston piece 4, retainer ring 7.This cylinder block bottom (A direction end in figure) is provided with external screw thread 11, for the hickey docking corresponding with on equipment, makes cylinder block be fixed in apparatus casing (not shown).
Specifically as shown in accompanying drawing 1,2, this piston piece 4 is positioned in cylinder block 1 inner chamber, and its outer wall seals sliding contact with cylinder block 1 internal chamber wall.Meanwhile, in order to ensure the sealing effectiveness between piston piece 4 and cylinder block 1 inwall, it is cased with sealing ring 8 at piston piece 4 sidewall.Piston piece 4 is internally provided with the pore 41 of connection cylinder block 1 inner chamber and passage 2, and waterproof ventilated membrane 3 is covered on the pore 41 of piston piece 4 end.
Retainer ring 7 is arranged at cylinder block 1 inner chamber top, and when piston piece 4 and elastic reset part 5 can be made to dismount, convenience and guarantee piston piece 4 slide smooth and easy in cylinder block 1.Piston piece 4 top extend retainer ring 7 inwall and with retainer ring 7 inwall sliding contact, in piston piece 4 sliding process, by the retainer ring 7 location to piston piece 4 top, can effectively prevent piston piece 4 from occurring rocking in sliding process and cause the stuck problem of piston piece 4, it is ensured that piston piece 4 working stability.
Elastic reset part 5 is between the retainer ring 7 on piston piece 4 and cylinder block 1 top.In the present embodiment, elastic reset part 5 is a spring being in compressive state, and spring one end top is pressed on retainer ring 7 bottom face on cylinder block 1 top, and other end top is pressed on piston piece 4 top end face.Under device interior certain pressure (in device interior pressure security numerical range), by the elastic force of spring, stablizing of piston piece 4 position can be kept.Cylinder block 1 sidewall is provided with relief hole 6, for this relative passage 2 of relief hole 6, is positioned at cylinder block 1 sidewall near bottom position.
To be device interior the most as shown in Figure 3 poor with ambient pressure and ventilative variation diagram, and wherein, abscissa P be extraneous and device interior pressure differential, and vertical coordinate F is gas transmission rate.
(i.e. device interior force value is in the range of security value (s) in original state for piston piece, section A-B in Fig. 3), piston piece 4 is positioned at relief hole 6 near cylinder block 1 bottom position (as shown in Figure 1) under spring pressure effect, and now device interior is in communication with the outside (as shown by arrow B) by passage 2 and relief hole 6 by waterproof ventilated membrane 3 again through pore 41.Due to the existence of waterproof ventilated membrane 3, the exchange of air and the balance of pressure can be realized between device interior and the external world, and hydrone is blocked, it is impossible to inside access arrangement, device interior parts be impacted.
And when device interior pressure exceedes security value (s) (preset value, B-C, C-D section in Fig. 3), spring is compressed, piston piece 4 moves to cylinder block 1 top, the B-C section that this process is in Fig. 3.After piston piece 4 moves up and exposes relief hole 6, relief hole 6 connects with device interior, and the pressure of device interior can be released moment, the C-D section in Fig. 3, effectively prevent device interior hypertonia.After pressure is discharged into a certain degree, under spring force, piston piece 4 moves to cylinder block 1 bottom, blocks up on relief hole 6, and whole valve recovers to original state.
When ambient pressure is more than the air pressure in equipment, ambient atmos air-vent 2 in cylinder block 1, spring, pore 41, waterproof ventilated membrane 3 and enter by protection equipment cavity.
No matter how ambient pressure changes with device interior air pressure size, and this structure all can make to reach air pressure balance inside and outside equipment, stops negative pressure water suction, prevents air pressure from acutely raising and explosive incident generation.
In order to ensure sealing effectiveness between cylinder block 1 and equipment, it is again provided with sealing ring 8 in cylinder block 1 external screw thread position.
For another example shown in accompanying drawing 4,5.The passage 2 that this accompanying drawing discloses is arranged at retainer ring 7 top, and this structure has same technique effect.
In addition to the above embodiments, the present invention can also do other changes on some concrete structure and replace, as waterproof ventilated membrane may be disposed at passage bottom nozzle position, rather than it is covered in the pore position of piston piece, this structure is possible to prevent the foreign material in the external world to enter between piston piece and cylinder block inwall, affects the normal mobile of piston piece.It addition, elastic reset part in the present invention uses outside spring, it is possible to for other metal spring piece, such as shell fragment etc..Further, for original state piston piece 4 position, can be just at blocking relief hole 6 position, and move to relief hole 6 to bottom without piston piece 4 as shown in Figure 1 and connect with passage 2, equally reach identical technique effect.
More than for using the present invention preferably implementation; it should be noted that; in the case of without departing substantially from present techniques spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and deformation according to the present invention, but these change and deform the protection domain that all should belong to appended claims of the invention.
Claims (6)
1. the explosion-proof waterproof vent valve of piston type, the passage (2) including a cylinder block (1), being arranged in cylinder block and waterproof ventilated membrane (3), this cylinder block bottom is provided with external screw thread (11), it is characterised in that also include:
One piston piece (4), is positioned in cylinder block inner chamber, and its outer wall seals sliding contact with cylinder block internal chamber wall；
One elastic reset part (5), is arranged between cylinder block and piston piece, for stablizing of piston piece holding position under a certain pressure;
Relief hole (6), is arranged in cylinder block, when in cylinder block, pressure exceedes preset value unlatching.
The explosion-proof waterproof vent valve of piston type the most according to claim 1, it is characterised in that described piston piece is internally provided with the pore (41) of connection cylinder block inner chamber and passage, and waterproof ventilated membrane is covered on pore or on passage.
The explosion-proof waterproof vent valve of piston type the most according to claim 2, it is characterized in that, described elastic reset part is a spring being in compressive state, spring one end top is pressed on cylinder block inwall, other end top is pressed on piston piece end, and original state piston piece blocks up on relief hole or is positioned at relief hole near cylinder block bottom position.
The explosion-proof waterproof vent valve of piston type the most according to claim 3, it is characterized in that, cylinder block inner chamber top is provided with retainer ring (7), piston piece top extend retainer ring inwall and with retainer ring inwall sliding contact, spring one end top is pressed on retainer ring end, and other end top is pressed on piston piece end.
The explosion-proof waterproof vent valve of piston type the most according to claim 4, it is characterised in that described passage is positioned in retainer ring or is positioned at cylinder block sidewall at retainer ring.
6. according to the explosion-proof waterproof vent valve of the piston type according to any one of Claims 1 to 5, it is characterised in that between piston piece and cylinder block internal chamber wall, be provided with sealing ring (8) in cylinder block external screw thread position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610359201.XA CN105889562A (en) | 2016-05-27 | 2016-05-27 | Piston type explosion-proof and water-proof ventilation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610359201.XA CN105889562A (en) | 2016-05-27 | 2016-05-27 | Piston type explosion-proof and water-proof ventilation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105889562A true CN105889562A (en) | 2016-08-24 |
Family
ID=56717697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610359201.XA Pending CN105889562A (en) | 2016-05-27 | 2016-05-27 | Piston type explosion-proof and water-proof ventilation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105889562A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594339A (en) * | 2016-12-23 | 2017-04-26 | 苏州精控能源科技有限公司 | Dynamic sealing structure applied to balance breather valve |
| CN108649627A (en) * | 2018-05-02 | 2018-10-12 | 杨秀波 | A kind of charging equipment with explosion prevention function |
| CN108711601A (en) * | 2018-06-12 | 2018-10-26 | 南京骏睿新能源汽车科技有限公司 | A kind of explosion-proof grease proofing power battery safety valve |
| 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 |
| CN111981174A (en) * | 2020-08-13 | 2020-11-24 | 中国兵器工业第五九研究所 | High-precision water-blocking type air pressure balancing device |
| CN112268077A (en) * | 2020-11-10 | 2021-01-26 | 瑞立集团瑞安汽车零部件有限公司 | AMT clutch electromechanical device with low-voltage release |
| CN113889963A (en) * | 2021-10-15 | 2022-01-04 | 重庆长信实业有限公司 | Flame-retardant structure of explosion-proof box |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3727631A (en) * | 1971-09-20 | 1973-04-17 | T Suzuki | Valve for pressure indicators |
| US20110226370A1 (en) * | 2008-11-27 | 2011-09-22 | Tatsuhiro Arikawa | Accumulator |
| CN202012656U (en) * | 2011-05-10 | 2011-10-19 | 王永球 | Novel water-proof air-permeating valve |
| CN102537443A (en) * | 2010-12-14 | 2012-07-04 | 海洋王照明科技股份有限公司 | Safety valve of telescopic cylinder |
| CN202348841U (en) * | 2011-07-01 | 2012-07-25 | 刘立起 | Automatic exhaust device |
| CN103104728A (en) * | 2013-02-04 | 2013-05-15 | 力帆实业(集团)股份有限公司 | Safety valve used for electric automobile |
| CN204328105U (en) * | 2014-11-28 | 2015-05-13 | 惠州聚创汇智科技开发有限公司 | A kind of explosion-proof safe waterproof vent valve |
-
2016
- 2016-05-27 CN CN201610359201.XA patent/CN105889562A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3727631A (en) * | 1971-09-20 | 1973-04-17 | T Suzuki | Valve for pressure indicators |
| US20110226370A1 (en) * | 2008-11-27 | 2011-09-22 | Tatsuhiro Arikawa | Accumulator |
| CN102537443A (en) * | 2010-12-14 | 2012-07-04 | 海洋王照明科技股份有限公司 | Safety valve of telescopic cylinder |
| CN202012656U (en) * | 2011-05-10 | 2011-10-19 | 王永球 | Novel water-proof air-permeating valve |
| CN202348841U (en) * | 2011-07-01 | 2012-07-25 | 刘立起 | Automatic exhaust device |
| CN103104728A (en) * | 2013-02-04 | 2013-05-15 | 力帆实业(集团)股份有限公司 | Safety valve used for electric automobile |
| CN204328105U (en) * | 2014-11-28 | 2015-05-13 | 惠州聚创汇智科技开发有限公司 | A kind of explosion-proof safe waterproof vent valve |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594339A (en) * | 2016-12-23 | 2017-04-26 | 苏州精控能源科技有限公司 | Dynamic sealing structure applied to balance breather valve |
| CN106594339B (en) * | 2016-12-23 | 2019-05-17 | 苏州精控能源科技有限公司 | A kind of dynamic seal structure applied in balance vent valve |
| CN108649627A (en) * | 2018-05-02 | 2018-10-12 | 杨秀波 | A kind of charging equipment with explosion prevention function |
| CN108649627B (en) * | 2018-05-02 | 2021-05-04 | 张素平 | Charging equipment with explosion-proof function |
| CN108711601A (en) * | 2018-06-12 | 2018-10-26 | 南京骏睿新能源汽车科技有限公司 | A kind of explosion-proof grease proofing power battery safety valve |
| 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 |
| CN111981174A (en) * | 2020-08-13 | 2020-11-24 | 中国兵器工业第五九研究所 | High-precision water-blocking type air pressure balancing device |
| CN112268077A (en) * | 2020-11-10 | 2021-01-26 | 瑞立集团瑞安汽车零部件有限公司 | AMT clutch electromechanical device with low-voltage release |
| CN113889963A (en) * | 2021-10-15 | 2022-01-04 | 重庆长信实业有限公司 | Flame-retardant structure of explosion-proof box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105889562A (en) | Piston type explosion-proof and water-proof ventilation valve | |
| CN206723476U (en) | A kind of faucet water saving device | |
| AU2021419120B2 (en) | Two-way vent valve, battery, and electrical device | |
| JP2018060880A (en) | Explosion-proof and waterproof case | |
| CN206889779U (en) | A kind of explosion-proof waterproof vent valve | |
| CN206592537U (en) | A kind of screw plug of draining the oil of the self-styled mechanism of band | |
| JP2018133374A (en) | Pressure Relief Mechanism | |
| CN204328105U (en) | A kind of explosion-proof safe waterproof vent valve | |
| CN202073852U (en) | Closed type hydraulic oil tank | |
| CN207945330U (en) | A kind of two-way vent valve of waterproof | |
| CN203836316U (en) | Automatic pressure relief device for high-temperature gas | |
| CN207554950U (en) | A kind of anti-seawater with automatic Regulation immerses sealing device | |
| CN204004720U (en) | Vessel valve | |
| CN103244732A (en) | Waterproof air-permeable valve and sealing containing device | |
| CN209781792U (en) | Pressure relief explosion-proof device | |
| CN104534135A (en) | Waterproof ventilation valve with pressure limiting function | |
| CN114278772A (en) | Electrochemical energy storage device safety valve | |
| CN203570566U (en) | Automatic pressure relief structure of reverse osmosis booster pump | |
| CN110636733A (en) | High-stability semi-vacuum mining centralized control communication host | |
| CN204717079U (en) | Breathing/pressure release manhole device | |
| CN203395313U (en) | Waterproof air-permeable valve and sealed containing device | |
| CN104315143A (en) | Pressure container with safety valve | |
| CN205534451U (en) | Drive gas release device | |
| CN205334970U (en) | Device is alleviated to sodium fire pressure | |
| CN212690951U (en) | Improved air pressure release valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160824 |
|
| RJ01 | Rejection of invention patent application after publication |