CN204805660U - Whole world formula overflow breather valve of preventing turning on one's side - Google Patents
Whole world formula overflow breather valve of preventing turning on one's side Download PDFInfo
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- CN204805660U CN204805660U CN201520394187.8U CN201520394187U CN204805660U CN 204805660 U CN204805660 U CN 204805660U CN 201520394187 U CN201520394187 U CN 201520394187U CN 204805660 U CN204805660 U CN 204805660U
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Abstract
The utility model relates to a whole world formula overflow breather valve of preventing turning on one's side, including valve body, malleation disk seat, malleation spring, spring holder, negative pressure valve clack, negative pressure valve rod, negative pressure spring, mainly be the negative pressure valve clack by negative pressure valve rod and negative pressure spring mounting on the spring holder, annular gap has between radial outer disc of negative pressure valve clack and the malleation disk seat opening inner wall, negative pressure valve clack up end system has sealed that mutually supports with the ring type seal of spring holder, valve body lower part fixed connection lower cover, outside this lower cover upper portion in disc and the valve body lower part circle wall screw mutually support and be connected, the lower cover up end compresses tightly with malleation disk seat lower extreme face to be connected, it flows the self sealing device to be equipped with the anti -overflow between lower cover inner chamber and malleation disk seat. When jolt slope or when turning on one's side, the anti -overflow flows the self sealing device and blocks spilling over of jar internal medium of tank wagon, prevent the tank wagon jolt the slope or when turning on one's side the medium spill over, sealing performance is reliable. Be applicable to the valve of tank wagon top excessive pressure or negative pressure protection in to the jar.
Description
Technical field
The utility model relates to valve field, particularly about a kind of inhalation valve.The utility model is applicable to the valve that fuel tank top is protected overvoltage in tank or negative pressure.
Background technique
On the tank body of fuel tank, in order to produce negative pressure when producing overvoltage when preventing tank body charge of oil or drain the oil by tank body explosion or inhale flat, generally at tank body top, inhalation valve is installed, during charge of oil superpressure, relieving pressure opened by inhalation valve, suck replenish air tank body pressure from inhalation valve during negative pressure of draining the oil, prevent tank body from bursting or inhaling flat.But, the existing inhalation valve for fuel tank, its superpressure and negative pressure cracking pressure are all set by the elastic force of spring, when vehicle brake, rollover or climb and fall time easily there is the impact of medium, spring is made to produce vibration, medium overflows from inhalation valve, causes the loss of medium or the pollution of environment.
Summary of the invention
The purpose of this utility model is the shortcoming existed for prior art, provides a kind of and prevents when fuel tank jolts or turn on one's side medium from overflowing, the reliable global formula Rollover prevention overflow inhalation valve of sealability.
The technical solution of the utility model comprises valve body, malleation valve seat, positive pressing spring, spring seat, negative pressure flap, negative pressure valve rod, negative pressure spring, the vertical fixing seal of valve body external cylindrical surface is arranged on tank body top, malleation valve seat is fixedly mounted on body cavity, mounting O-shaped seal ring between the radial periphery of malleation valve seat and valve interior wall, spring seat is arranged in the valve body of malleation valve seat upper-end surface, O-ring seal is shaped with in spring seat lower end surface, inside and outside O-ring seal both sides spring seat on be shaped with axial flow passage, malleation valve seat upper-end surface is shaped with the sealing surface cooperatively interacted with O-ring seal, malleation spring fitting is between spring seat upper-end surface and valve body, mainly negative pressure flap by negative pressure valve rod and negative pressure spring fitting on spring seat, have annular space between the radial periphery of negative pressure flap and malleation valve seat opening inwall, negative pressure flap upper-end surface is shaped with the sealing surface cooperatively interacted with the O-ring seal of spring seat, valve body lower portion is fixedly connected with lower cover, and this lower cover top periphery cooperatively interacts with valve body lower portion inner round wall screw thread and is connected, and lower cover upper-end surface compresses with malleation valve seat lower end surface and is connected, anti-overflow automatic sealing device is provided with between lower cover cavity and malleation valve seat, this anti-overflow automatic sealing device is by the piston cylinder of lower cover top inner chamber, piston, spin and Gask-O-Seal composition, piston cylinder circumferencial direction is shaped with some axial pass troughs, outside piston face coordinates with piston cylinder inner round wall is dynamic, spin is arranged on the lower cover cavity of piston lower surface, piston lower surface is shaped with the concave spherical surface cooperatively interacted with spin sphere, Gask-O-Seal sealing is fixedly mounted on malleation valve seat vias inner walls, piston upper-end surface has the sealing surface cooperatively interacted with Gask-O-Seal, be shaped with several windows being positioned at the lower cover sidewall circumferencial direction outside spin.
In above technological scheme, filter screen is installed at lower cover sidewall window place.
In above technological scheme, center, piston upper-end surface is shaped with cavity, installs balancing weight in this cavity.
In above technological scheme, piston upper-end surface is shaped with outer cone sealing surface, and the inner ring surface of Gask-O-Seal is shaped with the female cone sealing surface cooperatively interacted with outside piston bevel sealing surface.
The utility model has the advantages that and anti-overflow automatic sealing device is set in valve body, when fuel tank jolts or turn on one's side, spin can be rolled toward true dip direction thereupon, to piston thrust upwards, impel piston to move to be formed with Gask-O-Seal and be sealed and matched, block the spilling of tank in-vivo medium, when preventing fuel tank from jolting or turn on one's side, medium overflows, and sealability is reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1, valve body, 2, cotter pin, 3, positive pressing spring, 4, negative pressure spring, 5, spring seat, 6, O-ring seal, 7, malleation valve seat, 8, O RunddichtringO, 9, Gask-O-Seal, 10, negative pressure flap, 11, balancing weight, 12, piston, 13, spin, 14, lower cover, 15, filter screen, 16, negative pressure valve rod.
Embodiment
Global formula Rollover prevention overflow inhalation valve as shown in Figure 1, comprise valve body 1, malleation valve seat 7, positive pressing spring 3, spring seat 5, negative pressure flap 10, negative pressure valve rod 16, negative pressure spring 4, the vertical fixing seal of valve body 1 external cylindrical surface is arranged on tank body top, valve body 1 can adopt the screw thread on external cylindrical surface to be arranged on, and tank body top manhole cover is little covers, also screw can be adopted to be arranged on, and tank body top manhole cover is little covers, malleation valve seat 7 is fixedly mounted on valve body 1 inner chamber, mounting O-shaped seal ring 8 between the radial periphery of malleation valve seat 7 and valve body 1 inwall, realize the sealing between malleation valve seat 7 and valve body 1, spring seat 5 is arranged in the valve body 1 of malleation valve seat 7 upper-end surface, O-ring seal 6 is shaped with in spring seat 5 lower end surface, inside and outside O-ring seal 6 both sides spring seat 5 on be shaped with axial flow passage, medium can be flow through in the circulation passage of both sides inside and outside O-ring seal 6, malleation valve seat 7 upper-end surface is shaped with the sealing surface cooperatively interacted with O-ring seal 6, positive pressing spring 3 is arranged between spring seat 5 upper-end surface and valve body 1, the O-ring seal 6 of holddown spring seat 5 lower end surface is sealed and matched with the sealing surface of malleation valve seat 7 upper-end surface, negative pressure flap 10 is arranged on spring seat 5 by negative pressure valve rod 16 and negative pressure spring 4, negative pressure spring 4 is sleeved on outside negative pressure valve rod 16, its lower end is fitted in center, spring seat 5 upper-end surface, upper end is fitted in below the cotter pin 2 of negative pressure valve rod 16 upper end, between the radial periphery of negative pressure flap 10 and malleation valve seat 7 opening inwall, there is annular space, negative pressure flap 10 upper-end surface is shaped with the sealing surface cooperatively interacted with the O-ring seal 6 of spring seat 5, by negative pressure spring 4 elastic force, negative pressure flap 10 sealing surface is coordinated with O-ring seal 6 press seal of spring seat 5, in normal state, O-ring seal 6 exterior annular sealing surface and malleation valve seat 7 sealing surface are sealed and matched, and O-ring seal 6 interior annular sealing surface and negative pressure flap 10 sealing surface are sealed and matched, when pressure medium in tank body exceedes the impacting force of positive pressing spring 3, the elastic force that pressure medium overcomes positive pressing spring 3 pushes spring seat 5 open, make medium flow to valve body 1 from the axial flow passage outside the O-ring seal 6 spring seat 5 to export, to release pressure medium in tank body, when tank body releases medium generation negative pressure, negative pressure overcomes the elastic force of negative pressure spring 4, inhales dynamic negative pressure flap 10 sealing surface and leaves O-ring seal 6, make valve body 1 outlet air enter in tank body from the axial flow passage inside the O-ring seal 6 spring seat 5, valve body 1 bottom is fixedly connected with lower cover 14, this lower cover 14 top periphery cooperatively interacts with valve body 1 bottom inner round wall screw thread and is connected, lower cover 14 upper-end surface compresses with malleation valve seat 7 lower end surface and is connected, and is compressed by malleation valve seat 7 and is arranged between valve body 1 inwall convex shoulder and lower cover 14 upper-end surface, anti-overflow automatic sealing device is provided with between lower cover 14 inner chamber and malleation valve seat 7, this anti-overflow automatic sealing device is by the piston cylinder of lower cover 14 top inner chamber, piston 12, spin 13 and Gask-O-Seal 9 form, piston cylinder circumferencial direction is shaped with some axial pass troughs, piston 12 periphery coordinates with piston cylinder inner round wall is dynamic, described piston cylinder can adopt the guiding rib composition evenly arranging some radial directions at lower cover 14 internal chamber wall, axial pass trough is formed between adjacent two guiding ribs, when tank body superpressure or negative pressure, medium or air can pass through in axial pass trough, spin 13 is arranged on lower cover 14 inner chamber of piston 12 lower end surface, piston 12 lower end surface is shaped with the concave spherical surface cooperatively interacted with spin 13 sphere, Gask-O-Seal 9 sealing is fixedly mounted on malleation valve seat 7 vias inner walls, piston 12 upper-end surface has the sealing surface cooperatively interacted with Gask-O-Seal 9, several windows are shaped with at the lower cover 14 sidewall circumferencial direction be positioned at outside spin 13, lower cover 14 inner chamber is communicated with tank body, when fuel tank jolts or turn on one's side, spin 13 is rolled toward true dip direction, promote piston 12 to move up, piston 12 sealing surface and Gask-O-Seal 9 are formed be sealed and matched, block the spilling of tank in-vivo medium.
Filter screen 15 is installed at lower cover 14 sidewall window place, prevents impurity in air from entering tank body.
Center, piston 12 upper-end surface is shaped with cavity, when piston 12 adopts lightweight material, installs balancing weight 11 in this cavity, prevents medium from being floated by piston 12 and forms sealing with Gask-O-Seal 9.
Piston 12 upper-end surface is shaped with outer cone sealing surface, and Gask-O-Seal 9 inner ring surface is shaped with the female cone sealing surface cooperatively interacted with piston 12 outer cone sealing surface.
Claims (5)
1. a global formula Rollover prevention overflow inhalation valve, comprise valve body (1), malleation valve seat (7), positive pressing spring (3), spring seat (5), negative pressure flap (10), negative pressure valve rod (16), negative pressure spring (4), the vertical fixing seal of valve body (1) external cylindrical surface is arranged on tank body top, malleation valve seat (7) is fixedly mounted on valve body (1) inner chamber, mounting O-shaped seal ring (8) between malleation valve seat (7) radial periphery and valve body (1) inwall, spring seat (5) is arranged in the valve body (1) of malleation valve seat (7) upper-end surface, O-ring seal (6) is shaped with in spring seat (5) lower end surface, the spring seat (5) of the inside and outside both sides of O-ring seal (6) is shaped with axial flow passage, malleation valve seat (7) upper-end surface is shaped with the sealing surface cooperatively interacted with O-ring seal (6), positive pressing spring (3) is arranged between spring seat (5) upper-end surface and valve body (1), it is characterized in that negative pressure flap (10) is arranged on spring seat (5) by negative pressure valve rod (16) and negative pressure spring (4), have annular space between negative pressure flap (10) radial periphery and malleation valve seat (7) opening inwall, negative pressure flap (10) upper-end surface is shaped with the sealing surface cooperatively interacted with the O-ring seal of spring seat (5) (6), valve body (1) bottom is fixedly connected with lower cover (14), this lower cover (14) top periphery cooperatively interacts with valve body (1) bottom inner round wall screw thread and is connected, and lower cover (14) upper-end surface compresses with malleation valve seat (7) lower end surface and is connected, anti-overflow automatic sealing device is provided with between lower cover (14) inner chamber and malleation valve seat (7), this anti-overflow automatic sealing device is by the piston cylinder of lower cover (14) top inner chamber, piston (12), spin (13) and Gask-O-Seal (9) composition, piston cylinder circumferencial direction is shaped with some axial pass troughs, piston (12) periphery coordinates with piston cylinder inner round wall is dynamic, spin (13) is arranged on lower cover (14) inner chamber of piston (12) lower end surface, piston (12) lower end surface is shaped with the concave spherical surface cooperatively interacted with spin (13) sphere, Gask-O-Seal (9) sealing is fixedly mounted on malleation valve seat (7) vias inner walls, piston (12) upper-end surface has the sealing surface cooperatively interacted with Gask-O-Seal (9), several windows are shaped with at lower cover (14) the sidewall circumferencial direction being positioned at spin (13) outside.
2. global formula Rollover prevention overflow inhalation valve according to claim 1, is characterized in that filter screen (15) is installed at lower cover (14) sidewall window place.
3. global formula Rollover prevention overflow inhalation valve according to claim 1 and 2, is characterized in that piston (12) center, upper-end surface is shaped with cavity, installs balancing weight (11) in this cavity.
4. global formula Rollover prevention overflow inhalation valve according to claim 1 and 2, it is characterized in that piston (12) upper-end surface is shaped with outer cone sealing surface, Gask-O-Seal (9) inner ring surface is shaped with the female cone sealing surface cooperatively interacted with piston (12) outer cone sealing surface.
5. global formula Rollover prevention overflow inhalation valve according to claim 3, it is characterized in that piston (12) upper-end surface is shaped with outer cone sealing surface, Gask-O-Seal (9) inner ring surface is shaped with the female cone sealing surface cooperatively interacted with piston (12) outer cone sealing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520394187.8U CN204805660U (en) | 2015-06-05 | 2015-06-05 | Whole world formula overflow breather valve of preventing turning on one's side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520394187.8U CN204805660U (en) | 2015-06-05 | 2015-06-05 | Whole world formula overflow breather valve of preventing turning on one's side |
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| Publication Number | Publication Date |
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| CN204805660U true CN204805660U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520394187.8U Active CN204805660U (en) | 2015-06-05 | 2015-06-05 | Whole world formula overflow breather valve of preventing turning on one's side |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896159A (en) * | 2015-06-05 | 2015-09-09 | 浙江嘉隆机械设备有限公司 | Full-ball type rollover and overflow resistant breathing valve |
| CN109488798A (en) * | 2017-09-11 | 2019-03-19 | 徐州德胜石油机械有限公司 | A kind of novel anti-rollover overflow breather valve |
-
2015
- 2015-06-05 CN CN201520394187.8U patent/CN204805660U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896159A (en) * | 2015-06-05 | 2015-09-09 | 浙江嘉隆机械设备有限公司 | Full-ball type rollover and overflow resistant breathing valve |
| CN109488798A (en) * | 2017-09-11 | 2019-03-19 | 徐州德胜石油机械有限公司 | A kind of novel anti-rollover overflow breather valve |
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