CN105782524B - pressure limiting valve - Google Patents
pressure limiting valve Download PDFInfo
- Publication number
- CN105782524B CN105782524B CN201610284492.0A CN201610284492A CN105782524B CN 105782524 B CN105782524 B CN 105782524B CN 201610284492 A CN201610284492 A CN 201610284492A CN 105782524 B CN105782524 B CN 105782524B
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- China
- Prior art keywords
- valve
- spool
- cavity
- chamber
- air inlet
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- 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.)
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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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
Abstract
The present invention relates to a kind of pressure limiting valves, including valve body, cavity is equipped in valve body, one end end of valve body is equipped with the air inlet being connected to cavity, the side of valve body is equipped with the exhaust outlet being connected to cavity, the inner wall of air inlet is equipped with valve seat, valve seat is equipped with for by cavity, the spool that air inlet and exhaust outlet are individually insulated, push rod is equipped in cavity, the both ends of push rod abut valve interior wall and spool respectively, the middle part of push rod is equipped with the boss for abutting valve interior wall, spring is also arranged on push rod, the both ends of spring abut boss and valve interior wall respectively, the side that spool is abutted with push rod is equipped with the separating part for extending to valve interior wall, cavity is separated into the first chamber and the second chamber by separating part, recessed portion is additionally provided on valve interior wall；When spool is mobile is connected to air inlet by cavity with exhaust outlet, the first chamber is connected to air inlet by recessed portion.The advantages of present invention has structure simple, easily manufactured, stablizes pressure release.
Description
Technical field
The present invention relates to pressure limiting valve more particularly to a kind of automobile tire pressure limiting valves for being integrated on automotive hub.
Background technique
Automobile in motion due to long-time high-speed cruising, tire because the severe friction with ground can be brought rapidly up, from
And tire pressure is caused to improve, and it be easy to cause the accident of blowing out, it is therefore desirable to pressure limiting valve is arranged on tire limits air pressure,
It releases partial high pressure gas automatically when air pressure is excessively high to be depressurized, it is ensured that the certain air pressure of the holding of tire, existing tire
Pressure limiting valve mostly structure is simple, slow in reacting when that will start pressure release, and pressure release speed causes loss of tyre pressure fastly when starting pressure release,
The not only serious service life for influencing pressure limiting valve, also adversely affects tire.
Summary of the invention
The present invention provides a kind of pressure limiting valves, to solve the above technical problems.
In order to achieve the above object, the technical proposal of the invention is realized in this way：Pressure limiting valve, including valve body, the valve
It is equipped with cavity in vivo, one end end of the valve body is equipped with the air inlet being connected to the cavity, and the side of the valve body is equipped with
The exhaust outlet being connected to the cavity, the inner wall of the air inlet are equipped with valve seat, the valve seat be equipped with for by cavity, into
The spool that port and exhaust outlet are individually insulated, the cavity is interior to be equipped with push rod, and the both ends of the push rod abut the valve body respectively
Inner wall and the spool, the middle part of the push rod are equipped with the boss for abutting the valve interior wall, are also arranged with bullet on the push rod
Spring, the both ends of the spring abut the boss and valve interior wall respectively, and the side that the spool is abutted with the push rod is equipped with
The separating part of the valve interior wall is extended to, the cavity is separated into the first chamber and the second chamber, the valve body by the separating part
Recessed portion is additionally provided on inner wall；It is described when the spool is mobile is connected to the air inlet by cavity with the exhaust outlet
First chamber is connected to the air inlet by recessed portion.
Further, the valve body is equipped with the hose for being connected to first chamber and the second chamber, when spool movement makes
When the air inlet is connected to the exhaust outlet by cavity, the hose be sequentially communicated, close and be connected to first chamber and
Second chamber.
Further, the cross section of the separating part is annular.
Further, the separating part is equipped with the close of the annular being bonded with the valve interior wall far from one end of the spool
Seal block.
Further, the contact surface of the valve interior wall and the spool is equipped with groove.
Further, the groove is between the valve seat and the exhaust outlet.
Further, the diameter of the air inlet is 5-8 times of the diameter of outlet.
Compared with the prior art, the advantages of the present invention are as follows：Pressure limiting valve in the present invention is extended by being equipped on spool
Valve body internal cavity is separated into two cavitys by the separating part to valve interior wall, in spool by the excessive movement of air inlet directional pressure
When, it is interconnected between two cavitys and closing, while two cavitys are also interconnected with air inlet, so that air pressure be made to reach
To balance, the stability of valve body is improved, avoids air inlet air pressure from causing spool is unexpected to bounce and reset when rising rapidly, together
When slowly air pressure can be released when pressure slowly rises, have good pressure release sensibility.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is process schematic one of the embodiment of the present invention in pressure release；
Fig. 3 is process schematic two of the embodiment of the present invention in pressure release；
Fig. 4 is process schematic three of the embodiment of the present invention in pressure release.
In figure：1, valve body；2, cavity；21, the first chamber；22, the second chamber；3, air inlet；4, exhaust outlet；5, valve seat；6, valve
Core；7, push rod；8, boss；9, spring；10, separating part；11, recessed portion；12, hose；13, sealing block；14, groove.
Specific embodiment
Clear, complete description is carried out below with reference to technical solution of the attached drawing to various embodiments of the present invention, it is clear that is retouched
The embodiment stated is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Those of ordinary skill in the art's obtained all other embodiment without making creative work belongs to this
Invent protected range.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
As shown in Figures 1 to 4, the present invention relates to a kind of pressure limiting valve, including valve body 1, valve body 1 is interior to be equipped with cavity 2, valve body 1
One end end be equipped with the air inlet 3 that be connected to cavity 2, the side of valve body 1 is equipped with the exhaust outlet 4 being connected to cavity 2, air inlet
3 inner wall is equipped with valve seat 5, and valve seat 5 is equipped with the spool for cavity 2, air inlet 3 and 4 three of exhaust outlet to be individually insulated
6, cavity 2 is interior to be equipped with push rod 7, and the both ends of push rod 7 abut 1 inner wall of valve body and spool 6 respectively, and the middle part of push rod 7, which is equipped with, abuts valve
The boss 8 of 1 inner wall of body is also arranged with spring 9 on push rod 7, and the both ends of spring 9 abut 1 inner wall of boss 8 and valve body, spool 6 respectively
The side abutted with push rod 7 is equipped with the separating part 10 for extending to 1 inner wall of valve body, and cavity 2 is separated into the first chamber 21 by separating part 10
With the second chamber 22, recessed portion 11 is additionally provided on 1 inner wall of valve body；Connect air inlet 3 and exhaust outlet 4 by cavity 2 when spool 6 is mobile
When logical, the first chamber 21 is connected to air inlet 3 by recessed portion 11；This pressure limiting valve in the side that spool 6 is abutted with push rod 7 by setting
Have the separating part 10 for extending to 1 inner wall of valve body, form the first chamber 21 between 1 inner wall of separating part 10, spool 6 and valve body, in point
The second chamber 22 is formed between portion 10, push rod 7,1 inner wall of valve body and boss 8, when the pressure of air inlet 3 increases, spool 6 overcomes
The resistance for the spring 9 being arranged on push rod 7 moves up, and air inlet 3 is connected to exhaust outlet 4 by cavity 2 at this time, and gas passes through row
Port 4 is discharged, to reduce pressure, while the first chamber 21 is connected to by recessed portion 11 with air inlet 3, and partial high pressure gas is from recessed
Concave portion 11 enters in the first chamber 21, gives spool 6 one downward balance pressure, so that spool 6 be made slowly to be promoted, avoids
High pressure gas pushes spool 6 to be promoted rapidly in air inlet 3, reduces the loss of part in valve body 1, prolongs the service life.
Preferably, valve body 1 is equipped with the hose 12 of connection the first chamber 21 and the second chamber 22, when the movement of spool 6 makes air inlet 3
When being connected to exhaust outlet 4 by cavity 2, hose 12 is sequentially communicated, closes and is connected to the first chamber 21 and the second chamber 22；Such as Fig. 2 institute
Show, by being equipped with the hose 12 of connection the first chamber 21 and the second chamber 22, high pressure gas pushes spool 6 to moving up at air inlet 3
When dynamic, separating part 10 is moved up with spool 6, and the first chamber 21 is connected to by recessed portion 11 with air inlet 3, while the first chamber 21
It is connected to the secondth chamber 22 by hose 12, high pressure gas is also separately flowed into while being discharged by exhaust outlet 4 to the at this time
In one chamber 21 and the second chamber 22, to form balance pressure in the two sides up and down of spool 6, slows down the rate of climb of spool 6, make valve
Core 6 slowly rises；As shown in figure 3, when high pressure gas overcomes spring 9 and is flowed into 22 inner part gas of the first chamber 21 and the second chamber
When the balance pressure that body generates continues to press on the rising of spool 6, separating part 10 moves up simultaneously closed hose 12 with spool 6, makes
First chamber 21 and the second chamber 22 is closed separates, the balance pressure that the gas received when spool 6 continues to move up at this time generates
Power is not improving, when need to only overcome gas compression in the elastic-restoring force and the second chamber 22 of spring 9 when spool 6 continues to move up
Resistance；As shown in figure 4, the balance pressure that spool 6 is subject to when spool 6 continues to move up no longer changes；When in air inlet
After high pressure gas releases, when the elastic-restoring force of spring 9 pushes spool 6 to move down, due to the first chamber 21 and the second chamber 22
Connection effect makes the upper and lower surface of spool 6 obtain air pressure balance, resets spool 6 steadily.
Preferably, the cross section of separating part 10 is annular, and the cross-sectional area of separating part 10 gradually increases with far from spool 6
The big inner wall to abut valve body 1, the pressure for being subject to separating part 10 improve separating part with being gradually increased far from spool 6
10 by high-pressure gas pressure when stable promotion spool 6.
Preferably, separating part 10 is equipped with the sealing block 13 for the annular being bonded with 1 inner wall of valve body far from one end of spool 6, leads to
It crosses the sealing block 13 that separating part 10 is bonded with 1 inner wall of valve body hose 12 is opened and is closed, guarantees that 6 upper and lower surface of spool obtains
Equilibrium air pressure is obtained, moves up and down spool 6 smoothly in cavity 2.
Preferably, the contact surface of 1 inner wall of valve body and spool 6 is equipped with groove 14, which can make spool 6 by light
When micro- pressure is lifted, high pressure gas is entered in groove 14, and is discharged by groove 14 from exhaust outlet 4, to reduce spool 6
Travel frequency, extend spool 6 service life.
Preferably, groove 14 facilitates tire of short duration increase of air pressure inside in heating between valve seat 5 and exhaust outlet 4
When high pressure gas slightly lift spool 6, high pressure gas is discharged from groove 14 by exhaust outlet 4.
Preferably, the diameter of air inlet 3 is 5 times of 4 diameter of exhaust outlet, can guarantee that gas is from slowly from row in tire
Port 4 is discharged, and tire air pressure in of short duration heating is avoided to release loss of tyre pressure caused by excessive velocities.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form, appoint
What those skilled in the art, without departing from the scope of the present invention, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, but anything that does not depart from the technical scheme of the invention content,
Any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention still fall within this
In the range of inventive technique scheme.
Claims (4)
1. a kind of pressure limiting valve, including valve body, the valve body is interior to be equipped with cavity, it is characterised in that：One end end of the valve body is set
There is the air inlet being connected to the cavity, the side of the valve body is equipped with the exhaust outlet being connected to the cavity, the air inlet
Inner wall be equipped with valve seat, the valve seat is equipped with the spool that can be individually insulated cavity, air inlet and exhaust outlet three, described
Push rod is equipped in cavity, the both ends of the push rod abut the valve interior wall and the spool respectively, set in the middle part of the push rod
There is the boss for abutting the valve interior wall, spring is also arranged on the push rod, the both ends of the spring abut described convex respectively
Platform and valve interior wall, the side that the spool is abutted with the push rod is equipped with the separating part for extending to the valve interior wall, described
The cavity is separated into the first chamber and the second chamber by separating part, is additionally provided with recessed portion on the valve interior wall；When the spool moves
Dynamic when being connected to the air inlet by cavity with the exhaust outlet, first chamber and the air inlet pass through recessed portion company
It is logical；
The valve body is equipped with the hose for being connected to first chamber and the second chamber, when spool movement makes the air inlet and institute
When stating exhaust outlet by cavity connection, the hose is sequentially communicated, closes and is connected to first chamber and the second chamber；
The separating part is equipped with the sealing block for the annular being bonded with the valve interior wall far from one end of the spool.
2. pressure limiting valve as described in claim 1, it is characterised in that：The contact surface of the valve interior wall and the spool is equipped with
Groove.
3. pressure limiting valve as claimed in claim 2, it is characterised in that：The groove be located at the valve seat and the exhaust outlet it
Between.
4. pressure limiting valve as claimed in claim 3, it is characterised in that：The diameter of the air inlet is the 5- of the diameter of outlet
8 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610284492.0A CN105782524B (en) | 2016-05-03 | 2016-05-03 | pressure limiting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610284492.0A CN105782524B (en) | 2016-05-03 | 2016-05-03 | pressure limiting valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105782524A CN105782524A (en) | 2016-07-20 |
| CN105782524B true CN105782524B (en) | 2018-11-20 |
Family
ID=56400301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610284492.0A Active CN105782524B (en) | 2016-05-03 | 2016-05-03 | pressure limiting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105782524B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD276903A1 (en) * | 1988-11-09 | 1990-03-14 | Berliner Bremsenwerk Veb | REAR VALVE WITH DAMPING |
| CN102003556A (en) * | 2010-11-13 | 2011-04-06 | 宣达实业集团有限公司 | Piston-type water hammer resistance and high pressure balance check valve |
| CN202188179U (en) * | 2011-08-29 | 2012-04-11 | 浙江凯瑞特阀业有限公司 | Y-shaped lifting check valve |
| JP2013076443A (en) * | 2011-09-30 | 2013-04-25 | Toto Ltd | Flow path opening/closing device |
| CN103090059A (en) * | 2011-11-04 | 2013-05-08 | Smc株式会社 | Check Valve |
| CN105402446A (en) * | 2015-11-30 | 2016-03-16 | 营口埃斯威特阀门有限公司 | Y-shaped lifting type check valve |
| CN205605903U (en) * | 2016-05-03 | 2016-09-28 | 孙留红 | Pressure -limiting valve |
-
2016
- 2016-05-03 CN CN201610284492.0A patent/CN105782524B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD276903A1 (en) * | 1988-11-09 | 1990-03-14 | Berliner Bremsenwerk Veb | REAR VALVE WITH DAMPING |
| CN102003556A (en) * | 2010-11-13 | 2011-04-06 | 宣达实业集团有限公司 | Piston-type water hammer resistance and high pressure balance check valve |
| CN202188179U (en) * | 2011-08-29 | 2012-04-11 | 浙江凯瑞特阀业有限公司 | Y-shaped lifting check valve |
| JP2013076443A (en) * | 2011-09-30 | 2013-04-25 | Toto Ltd | Flow path opening/closing device |
| CN103090059A (en) * | 2011-11-04 | 2013-05-08 | Smc株式会社 | Check Valve |
| CN105402446A (en) * | 2015-11-30 | 2016-03-16 | 营口埃斯威特阀门有限公司 | Y-shaped lifting type check valve |
| CN205605903U (en) * | 2016-05-03 | 2016-09-28 | 孙留红 | Pressure -limiting valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105782524A (en) | 2016-07-20 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20201109 Address after: 235000 20 Wutong Road, Longhu Industrial Park, Longhu Economic Development Zone, Huaibei Patentee after: Huaibei Yukong Information Technology Co., Ltd Address before: Ding Yan Zhen Ding Xin Zhong Lu Rugao city 226500 Jiangsu city of Nantong province No. 6 Rugao General Technology Education Experimental School Patentee before: Sun Liuhong |