CN109488798A - A kind of novel anti-rollover overflow breather valve - Google Patents
A kind of novel anti-rollover overflow breather valve Download PDFInfo
- Publication number
- CN109488798A CN109488798A CN201710811638.7A CN201710811638A CN109488798A CN 109488798 A CN109488798 A CN 109488798A CN 201710811638 A CN201710811638 A CN 201710811638A CN 109488798 A CN109488798 A CN 109488798A
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- Prior art keywords
- negative pressure
- piston
- valve seat
- pressure valve
- lower cover
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Classifications
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- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
- F16K17/196—Equalising valves predominantly for tanks spring-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates to a kind of novel anti-rollover overflow breather valves, including valve body, positive pressure valve seat, positive pressing spring, spring base, negative pressure flap, negative pressure valve rod, negative pressure spring；Mainly negative pressure flap is mounted elastically by negative pressure valve rod and negative pressure spring, has annular gap between negative pressure flap radial direction periphery and positive pressure valve seat recirculation hole inner wall, negative pressure flap upper surface is formed with and the mutually matched sealing surface of the ring type seal of spring base；Valve body lower portion is fixedly connected with lower cover, and the lower cover top periphery and valve body lower portion inner round wall screw thread cooperate and connect, and lower cover upper surface and positive pressure valve seat lower end surface compress and connect；Anti-overflow automatic sealing device is equipped between lower cover cavity and positive pressure valve seat.When tank truck jolts inclination or rollover, anti-overflow automatic sealing device blocks the spilling of tank in-vivo medium, prevent tank truck jolt inclination or rollover when medium overflow, sealing performance is reliable.Suitable for the valve protected at the top of tank truck to over-voltage in tank or negative pressure.
Description
Technical field
The present invention relates to valve fields, especially with regard to a kind of breather valve.The present invention is suitable at the top of tank truck in tank
The valve of over-voltage or negative pressure protection.
Background technique
On the tank body of tank truck, generation negative pressure bursts tank body when generating over-voltage when tank body charge of oil in order to prevent or draining the oil
Or inhale flat, breather valve generally is installed in top of the tank, breather valve opening is released pressure when charge of oil superpressure, from breathing when negative pressure of draining the oil
Valve sucks air and supplements tank body pressure, prevents tank body from bursting or inhaling flat.But it is currently used for the breather valve of tank truck, superpressure
It with negative pressure cracking pressure is set by the elastic force of spring, is easy to appear medium when vehicle brake, rollover or climb and fall
Impact, make spring generate vibration, medium from breather valve overflow, cause the loss of medium or the pollution of environment.
Summary of the invention
The purpose of the present invention is being directed to disadvantage of the existing technology, provide one kind prevents when tank truck jolts or turns on one's side
Medium overflows, the reliable novel anti-rollover overflow breather valve of sealing performance.
Technical solution of the present invention include valve body, positive pressure valve seat, positive pressing spring, spring base, negative pressure flap, negative pressure valve rod,
Negative pressure spring, the vertical fixing seal of valve body external cylindrical surface are mounted on top of the tank, and positive pressure valve seat is fixedly mounted on body cavity, just
O type sealing ring is installed, spring base is mounted on the valve body of positive pressure valve seat upper surface between pressure valve seat radial direction periphery and valve interior wall
It is interior, it is formed with ring type seal in spring base lower end surface, is formed with axial flow passage on the spring base inside and outside ring type seal,
Positive pressure valve seat upper surface is formed with to mount elastically end face and valve with the mutually matched sealing surface of ring type seal, positive pressing spring
Between body；Mainly negative pressure flap is mounted elastically by negative pressure valve rod and negative pressure spring, negative pressure flap radial direction periphery with
There is annular gap, negative pressure flap upper surface is formed with mutual with the ring type seal of spring base between positive pressure valve seat recirculation hole inner wall
The sealing surface of cooperation；Valve body lower portion is fixedly connected with lower cover, the lower cover top periphery and valve body lower portion inner round wall screw thread phase interworking
Connection is closed, lower cover upper surface and positive pressure valve seat lower end surface, which compress, to be connected；Anti-overflow is equipped between lower cover cavity and positive pressure valve seat
Automatic sealing device, the anti-overflow automatic sealing device is by the piston cylinder of lower cover upper lumen, piston, spin and Gask-O-Seal
Composition, piston cylinder circumferencial direction are formed with several axial pass troughs, outside piston face and the dynamic cooperation of piston cylinder inner round wall, spin installation
In the lower cover cavity of piston lower surface, piston lower surface be formed with the mutually matched concave spherical surface of spin spherical surface, Gask-O-Seal is close
Envelope is fixedly mounted on positive pressure valve seat vias inner walls, piston upper surface have with the mutually matched sealing surface of Gask-O-Seal, in place
Lower cover side wall circumferencial direction on the outside of spin is formed with several windows.
In above technical scheme, strainer is installed at lower cover side wall window.
In above technical scheme, piston upper surface center is formed with cavity, and clump weight is installed in the cavity.
In above technical scheme, piston upper surface is formed with outer circle bevel sealing surface, the inner ring surface of Gask-O-Seal be formed with
The mutually matched inner circle bevel sealing surface of outside piston bevel sealing surface.
It is an advantage of the invention that anti-overflow automatic sealing device is arranged in valve body, when tank truck jolts inclination or rollover
When, spin can be rolled toward inclined direction therewith, give piston upward thrust, promoted piston to move up and formed sealing with Gask-O-Seal
Cooperation blocks the spilling of tank in-vivo medium, prevent tank truck jolt inclination or rollover when medium overflow, sealing performance is reliable.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
1, valve body, 2, split pin, 3, positive pressing spring, 4, negative pressure spring, 5, spring base, 6, ring type seal, 7, positive valve
Seat, 8, O type sealing ring, 9, Gask-O-Seal, 10, negative pressure flap, 11, clump weight, 12, piston, 13, spin, 14, lower cover,
15, strainer, 16, negative pressure valve rod.
Specific embodiment
The whole world formula anti-rollover overflow breather valve as shown in Fig. 1, including valve body 1, positive pressure 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 1 external cylindrical surface of valve body are mounted on top of the tank,
Valve body 1 can top of the tank manhole cover is small to be covered using being threadably mounted on external cylindrical surface, can also be mounted on using screw
Top of the tank manhole cover is small to be covered, and positive pressure valve seat 7 is fixedly mounted on 1 inner cavity of valve body, the radial periphery of positive pressure valve seat 7 and valve
O type sealing ring 8 is installed between 1 inner wall of body, realizes the sealing between positive pressure valve seat 7 and valve body 1, spring base 5 is mounted on just
In the valve body 1 of 7 upper surface of pressure valve seat, ring type seal 6 is formed in 5 lower end surface of spring base, inside and outside ring type seal 6
Spring base 5 on be formed with axial flow passage, flow medium out of, circulation passage inside and outside ring type seal 6
It crosses, 7 upper surface of positive pressure valve seat, which is formed with, is mounted on bullet with the mutually matched sealing surface of ring type seal 6, positive pressing spring 3
Between 5 upper surface of spring abutment and valve body 1, ring type seal 6 and 7 upper surface of positive pressure valve seat of 5 lower end surface of holddown spring seat
Sealing surface sealing cooperation；Negative pressure flap 10 is mounted on spring base 5 by negative pressure valve rod 16 and negative pressure spring 4, negative pressure spring 4
It is sleeved on 16 outside of negative pressure valve rod, lower end is fitted in 5 upper surface center of spring base, and upper end is fitted on negative pressure valve rod 16
The split pin 2 at end in the following, there is annular gap between the radial periphery of negative pressure flap 10 and 7 recirculation hole inner wall of positive pressure valve seat,
10 upper surface of negative pressure flap is formed with the mutually matched sealing surface of ring type seal 6 with spring base 5, by 4 bullet of negative pressure spring
The ring type seal 6 of 10 sealing surface of negative pressure flap and spring base 5 is pressed tight sealing engagement by power, and in normal state, annular is close
6 exterior annular sealing surface of seal and 7 sealing surface of positive pressure valve seat sealing cooperate, and 6 interior annular sealing surface of ring type seal with
The sealing cooperation of 10 sealing surface of negative pressure flap, when pressure medium is more than the pressing force of positive pressing spring 3 in tank body, pressure medium gram
The elastic force for taking positive pressing spring 3 pushes spring base 5 open, makes medium from the axial circulation in 6 outside of ring type seal on spring base 5
The outlet of valve body 1, pressure medium in tank body of releasing are flowed in channel；When tank body releases medium generation negative pressure, negative pressure overcomes negative pressure
The elastic force of spring 4 inhales dynamic 10 sealing surface of negative pressure flap and leaves ring type seal 6, makes 1 outlet air of valve body from spring base 5
On the axial flow passage of the inside of ring type seal 6 enter in tank body；1 lower part of valve body is fixedly connected with lower cover 14, the lower cover
14 top peripheries and 1 lower part inner round wall screw thread of valve body, which cooperate, to be connected, 14 upper surface of lower cover and 7 lower end of positive pressure valve seat
Face pressure is tightly connected, and the compression of positive pressure valve seat 7 is mounted between 1 inner wall convex shoulder of valve body and 14 upper surface of lower cover；In lower cover 14
Anti-overflow automatic sealing device is equipped between inner cavity and positive pressure valve seat 7, the anti-overflow automatic sealing device is by 14 top of lower cover
Piston cylinder, piston 12, spin 13 and the Gask-O-Seal 9 of inner cavity form, and it is logical that piston cylinder circumferencial direction is formed with several axial directions
The dynamic cooperation of slot, 12 periphery of piston and piston cylinder inner round wall, the piston cylinder can be used and uniformly be set in 14 internal chamber wall of lower cover
Set several radial guiding ribs compositions, form axial pass trough between adjacent two guiding rib, when tank body superpressure or negative pressure, medium or
Air can pass through out of axial pass trough, and spin 13 is mounted on 14 inner cavity of lower cover of 12 lower end surface of piston, 12 lower end of piston
Wheat flour, which has, is fixedly mounted on 7 channel of positive pressure valve seat with the mutually matched concave spherical surface of 13 spherical surface of spin, the sealing of Gask-O-Seal 9
Inner wall, 12 upper surface of piston have with the mutually matched sealing surface of Gask-O-Seal 9, in the lower cover for being located at the outside of spin 13
14 side wall circumferencial directions are formed with several windows, and 14 inner cavity of lower cover is connected to tank body, when tank truck jolts inclination or rollover
When, spin 13 is rolled toward inclined direction, is pushed piston 12 to move up, is made 12 sealing surface of piston and 9 shape of Gask-O-Seal
Cooperate at sealing, blocks the spilling of tank in-vivo medium.
Strainer 15 is installed at 14 side wall window of lower cover, prevents impurity in air from entering tank body.
12 upper surface center of piston is formed with cavity, when piston 12 is using light material, installs counterweight in the cavity
Block 11 prevents medium from floating piston 12 and forms sealing with Gask-O-Seal 9.
12 upper surface of piston is formed with outer circle bevel sealing surface, and 9 inner ring surface of Gask-O-Seal is formed with close with 12 outer cone of piston
The mutually matched inner circle bevel sealing surface of cover.
" one embodiment " for being spoken of in the present specification, " another embodiment ", " embodiment " etc., refer to tying
Specific features, structure or the feature for closing embodiment description include at least one embodiment described in the application generality
In.It is not centainly to refer to the same embodiment that statement of the same race, which occur, in multiple places in the description.Appoint furthermore, it is understood that combining
When one embodiment describes a specific features, structure or feature, what is advocated is to realize this in conjunction with other embodiments
Kind feature, structure or feature are also fallen within the scope of the present invention.
Although reference be made herein to invention has been described for the multiple explanatory embodiments invented, however, it is to be understood that this
Field technical staff can be designed that a lot of other modification and implementations, these modifications and implementations will fall in the application
Within disclosed scope and spirit.More specifically, it is disclosed in the scope of the claims in the application, it can be to theme group
The building block and/or layout for closing layout carry out a variety of variations and modifications.In addition to the modification carried out to building block and/or layout
Outer with improving, to those skilled in the art, other purposes also will be apparent.
Claims (5)
1. a kind of novel anti-rollover overflow breather valve, including valve body (1), positive pressure valve seat (7), positive pressing spring (3), spring base (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 are mounted on tank body
Top, positive pressure valve seat (7) are fixedly mounted on valve body (1) inner cavity, positive pressure valve seat (7) radial direction periphery and valve body (1) inner wall
Between O type sealing ring (8) are installed, spring base (5) is mounted in the valve body (1) of positive pressure valve seat (7) upper surface, in spring base
(5) lower end surface is formed with ring type seal (6), is formed with axial circulation on the spring base (5) inside and outside ring type seal (6)
Channel, positive pressure valve seat (7) upper surface are formed with and ring type seal (6) mutually matched sealing surface, positive pressing spring (3) installation
Between spring base (5) upper surface and valve body (1)；It is characterized in that negative pressure flap (10) is by negative pressure valve rod (16) and negative pressure bullet
Spring (4) is mounted on spring base (5), between negative pressure flap (10) radial direction periphery and positive pressure valve seat (7) recirculation hole inner wall
With annular gap, negative pressure flap (10) upper surface is formed with mutually matched close with the ring type seal (6) of spring base (5)
Cover；Valve body (1) lower part is fixedly connected lower cover (14), and lower cover (14) upper surface and positive pressure valve seat (7) lower end surface compress and connect
It connects；Anti-overflow automatic sealing device, anti-overflow automatic-sealed dress are equipped between lower cover (14) inner cavity and positive pressure valve seat (7)
It sets and is made of the piston cylinder of lower cover (14) upper lumen, piston (12), spin (13) and Gask-O-Seal (9), piston cylinder circle
Circumferential direction is formed with several axial pass troughs, and piston (12) periphery and the dynamic cooperation of piston cylinder inner round wall, spin (13) are mounted on
Lower cover (14) inner cavity of piston (12) lower end surface, piston (12) lower end surface are formed with mutually matched recessed with spin (13) spherical surface
Spherical surface, Gask-O-Seal (9) sealing are fixedly mounted on positive pressure valve seat (7) vias inner walls, and piston (12) upper surface has and ring
Shape gasket (9) mutually matched sealing surface, in the lower cover (14) being located on the outside of spin (13) if side wall circumferencial direction is formed with
Dry window.
2. the novel anti-rollover overflow breather valve according to claim 1, it is characterized in that pacifying at lower cover (14) side wall window
It fills strainer (15).
3. according to claim 1 or novel anti-rollover overflow breather valve described in 2, it is characterized in that in piston (12) upper surface
The heart is formed with cavity, installs clump weight (11) in the cavity.
4. according to claim 1 or novel anti-rollover overflow breather valve described in 2, it is characterized in that piston (12) upper end wheat flour
There is outer circle bevel sealing surface, Gask-O-Seal (9) inner ring surface is formed with and the mutually matched inner circle of piston (12) outer circle bevel sealing surface
Bevel sealing surface.
5. the novel anti-rollover overflow breather valve according to claim 3, it is characterized in that piston (12) upper surface is formed with outside
Conical seal surface, Gask-O-Seal (9) inner ring surface are formed with close with the mutually matched female cone of piston (12) outer circle bevel sealing surface
Cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811638.7A CN109488798A (en) | 2017-09-11 | 2017-09-11 | A kind of novel anti-rollover overflow breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811638.7A CN109488798A (en) | 2017-09-11 | 2017-09-11 | A kind of novel anti-rollover overflow breather valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109488798A true CN109488798A (en) | 2019-03-19 |
Family
ID=65687463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710811638.7A Pending CN109488798A (en) | 2017-09-11 | 2017-09-11 | A kind of novel anti-rollover overflow breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109488798A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2806898Y (en) * | 2005-01-24 | 2006-08-16 | 吴权林 | Tank bottom valve for oil tank car |
| CN204025801U (en) * | 2014-08-22 | 2014-12-17 | 罗浮阀门集团有限公司 | Inhalation valve with heat insulation function |
| 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 |
| CN204805660U (en) * | 2015-06-05 | 2015-11-25 | 浙江嘉隆机械设备有限公司 | Whole world formula overflow breather valve of preventing turning on one's side |
| CN204961945U (en) * | 2015-09-14 | 2016-01-13 | 天正阀门有限公司 | Breathe relief valve |
-
2017
- 2017-09-11 CN CN201710811638.7A patent/CN109488798A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2806898Y (en) * | 2005-01-24 | 2006-08-16 | 吴权林 | Tank bottom valve for oil tank car |
| CN204025801U (en) * | 2014-08-22 | 2014-12-17 | 罗浮阀门集团有限公司 | Inhalation valve with heat insulation function |
| 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 |
| CN204805660U (en) * | 2015-06-05 | 2015-11-25 | 浙江嘉隆机械设备有限公司 | Whole world formula overflow breather valve of preventing turning on one's side |
| CN204961945U (en) * | 2015-09-14 | 2016-01-13 | 天正阀门有限公司 | Breathe relief valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190319 |