CN105782524A - Pressure-limiting valve - Google Patents
Pressure-limiting valve Download PDFInfo
- Publication number
- CN105782524A CN105782524A CN201610284492.0A CN201610284492A CN105782524A CN 105782524 A CN105782524 A CN 105782524A CN 201610284492 A CN201610284492 A CN 201610284492A CN 105782524 A CN105782524 A CN 105782524A
- Authority
- CN
- China
- Prior art keywords
- valve
- cavity
- air inlet
- spool
- valve body
- 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.)
- Granted
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to a pressure-limiting valve. The pressure-limiting valve comprises a valve body, a cavity is formed in the valve body, an air inlet communicated with the cavity is formed in one end of the valve body, an air exhaust opening communicated with the cavity is formed in the side portion of the valve body, a valve seat is arranged on the inner wall of the air inlet, and a valve element used for isolating the cavity, the air inlet and the air exhaust opening is arranged on the valve seat; a pushing rod is arranged in the cavity, the two ends of the pushing rod abut against the inner wall of the valve body and the valve element, a boss abutting against the inner wall of the valve body is arranged in the middle portion of the pushing rod, the pushing rod is further sleeved with a spring, and the two ends of the spring abut against the boss and the inner wall of the valve body; one side, abutting against the pushing rod, of the valve element is provided with a separating part extending to the inner wall of the valve body, and the cavity is divided by the separating part into a first cavity body and a second cavity body; a sinking part is further arranged on the inner wall of the valve body; and when the valve element moves to enable the air inlet and the air exhaust opening to be communicated through the cavity, the first cavity body is communicated with the air inlet through the sinking part. The pressure-limiting valve has the beneficial effects of being simple in structure, convenient to manufacture and stable in pressure releasing.
Description
Technical field
The present invention relates to pressure limiting valve, particularly relate to a kind of automobile tire pressure limiting valve for being integrated on automotive hub.
Background technology
Automobile is in motion due to long-time high-speed cruising, tire can be brought rapidly up because of the severe friction with ground, thus causing that pressure of tire improves, easily cause the accident of blowing out, it is thus desirable to arrange pressure limiting valve on tire, air pressure is limited, automatically release partial high pressure gas to reduce pressure when air pressure is too high, guarantee the air pressure that the maintenance of tire is certain, existing tire pressure limiting valve mostly simple in construction, the bradykinesia when pressure release will be started, when starting pressure release, pressure release speed causes loss of tyre pressure soon, the not only serious service life having influence on pressure limiting valve, also tire is adversely affected.
Summary of the invention
The invention provides a kind of pressure limiting valve, to solve above-mentioned technical problem.
nullIn order to achieve the above object，The technical scheme is that and be achieved in that: pressure limiting valve，Including valve body，It is provided with cavity in described valve body，The end, one end of described valve body is provided with the air inlet connected with described cavity，The sidepiece of described valve body is provided with the air vent connected with described cavity，The inwall of described air inlet is provided with valve seat，Described valve seat is provided with for by cavity、The spool that air inlet and air vent are individually insulated，It is provided with push rod in described cavity，The two ends of described push rod abut described valve interior wall and described spool respectively，The middle part of described push rod is provided with the boss abutting described valve interior wall，Described push rod is also arranged with spring，The two ends of described spring abut described boss and valve interior wall respectively，The side that described spool abuts with described push rod is provided with the lattice extending to described valve interior wall，Described cavity is separated into the first chamber and the second chamber by described lattice，Described valve interior wall is additionally provided with depressed part；When described spool move make described air inlet be connected by cavity with described air vent time, described first chamber is connected by depressed part with described air inlet.
Further, described valve body is communicated with the flexible pipe in described first chamber and the second chamber, when described spool move make described air inlet be connected by cavity with described air vent time, described flexible pipe is sequentially communicated, closes and connects described first chamber and the second chamber.
Further, the cross section of described lattice is annular.
Further, described lattice is provided with, away from one end of described spool, the annular sealing block fitted with described valve interior wall.
Further, described valve interior wall is provided with groove with the contact surface of described spool.
Further, described groove is between described valve seat and described air vent.
Further, the diameter of described air inlet is 5-8 times of described diameter of outlet.
Compared with prior art, it is an advantage of the current invention that: the pressure limiting valve in the present invention, by being provided with the lattice extending to valve interior wall on spool, valve body internal cavity is separated into two cavitys, spool be subject to air inlet directional pressure excessive mobile time, it is interconnected between these two cavitys and closes, these two cavitys are also interconnected with air inlet simultaneously, so that air pressure reaches balance, improve the stability of valve body, avoid what air inlet air pressure caused spool unexpected when rising rapidly upspring and reset, slowly air pressure can be released when pressure slowly rises simultaneously, there is good pressure release sensitivity.
Accompanying drawing explanation
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the embodiment of the present invention process schematic one when pressure release；
Fig. 3 is the embodiment of the present invention process schematic two when pressure release；
Fig. 4 is the embodiment of the present invention process schematic three when pressure release.
In figure: 1, valve body；2, cavity；21, the first chamber；22, the second chamber；3, air inlet；4, air vent；5, valve seat；6, spool；7, push rod；8, boss；9, spring；10, lattice；11, depressed part；12, flexible pipe；13, sealing block；14, groove.
Detailed description of the invention
Below with reference to accompanying drawing, the technical scheme of various embodiments of the present invention is carried out clear, complete description, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art are obtained under the premise not making creative work, broadly fall into the scope that the present invention protects.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship; be for only for ease of the description present invention and simplifying and describe; rather than instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.Additionally, term " first ", " second ", " the 3rd " are only for descriptive purposes, and it is not intended that indicate or hint relative importance.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in the present invention.
Below by specific embodiment son and in conjunction with accompanying drawing, the present invention is described in further detail.
nullAs shown in Figures 1 to 4，The present invention relates to a kind of pressure limiting valve，Including valve body 1，Cavity 2 it is provided with in valve body 1，The end, one end of valve body 1 is provided with the air inlet 3 connected with cavity 2，The sidepiece of valve body 1 is provided with the air vent 4 connected with cavity 2，The inwall of air inlet 3 is provided with valve seat 5，Valve seat 5 is provided with for by cavity 2、The spool 6 that air inlet 3 and air vent 4 three are individually insulated，Push rod 7 it is provided with in cavity 2，The two ends of push rod 7 abut valve body 1 inwall and spool 6 respectively，The middle part of push rod 7 is provided with the boss 8 abutting valve body 1 inwall，Push rod 7 is also arranged with spring 9，The two ends of spring 9 abut boss 8 and valve body 1 inwall respectively，The side that spool 6 abuts with push rod 7 is provided with the lattice 10 extending to valve body 1 inwall，Cavity 2 is separated into the first chamber 21 and the second chamber 22 by lattice 10，Valve body 1 inwall is additionally provided with depressed part 11；When spool 6 move make air inlet 3 and air vent 4 be connected by cavity 2 time, the first chamber 21 is connected by depressed part 11 with air inlet 3；nullThis pressure limiting valve is provided with the lattice 10 extending to valve body 1 inwall with push rod 7 by the side abutted at spool 6，In lattice 10、The first chamber 21 is formed between spool 6 and valve body 1 inwall，In lattice 10、Push rod 7、The second chamber 22 is formed between valve body 1 inwall and boss 8，When the pressure of air inlet 3 increases，Spool 6 overcomes the resistance of spring 9 sheathed on push rod 7 to move up，Now air inlet 3 is connected by cavity 2 with air vent 4，Gas is discharged by air vent 4，Thus reducing pressure，First chamber 21 is connected with air inlet 3 by depressed part 11 simultaneously，Partial high pressure gas enters in the first chamber 21 from depressed part 11，Give the balance pressure that spool 6 one is downward，So that spool 6 promotes slowly，Air inlet 3 inner high voltage gas push spool 6 is avoided to promote rapidly，Reduce the loss of part in valve body 1，Increase the service life.
Preferably, valve body 1 is communicated with the flexible pipe 12 in the first chamber 21 and the second chamber 22, when spool 6 move make air inlet 3 and air vent 4 be connected by cavity 2 time, flexible pipe 12 is sequentially communicated, closes and connects the first chamber 21 and the second chamber 22；As shown in Figure 2, by being communicated with the flexible pipe 12 in the first chamber 21 and the second chamber 22, when air inlet 3 place gases at high pressure promote spool 6 to move up, lattice 10 moves up along with spool 6, first chamber 21 is connected with air inlet 3 by depressed part 11, first chamber 21 is connected by flexible pipe 12 with the secondth chamber 22 simultaneously, now gases at high pressure also separately flow in the first chamber 21 and the second chamber 22 while being discharged by air vent 4, thus form balance pressure in the both sides up and down of spool 6, slow down the rate of climb of spool 6, make spool 6 slowly increase；As shown in Figure 3, when gases at high pressure overcome spring 9 and the balance pressure that is flowed in the first chamber 21 and the second chamber 22 portion gas and produces continue to press on spool 6 rise time, lattice 10 moves up and closed hose 12 along with spool 6, make the first chamber 21 and the second chamber 22 is airtight separates, the balance pressure that gas that now spool 6 receives when continuing to move up produces is not improving, and only need to overcome resistance during gas compression in the elastic-restoring force of spring 9 and the second chamber 22 when spool 6 continues to move up；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 after air inlet inner high voltage gas leakage, when the elastic-restoring force of spring 9 promotes spool 6 to move down, connect effect due to the first chamber 21 and the second chamber 22, make the upper and lower surface of spool 6 obtain air pressure balance, make spool 6 steadily reset.
Preferably, the cross section of lattice 10 is annular, and the cross-sectional area of lattice 10 is along with being gradually increased thus abutting the inwall of valve body 1 away from spool 6, make lattice 10 pressure experienced along with being gradually increased away from spool 6, improve lattice 10 and be subject to lifting spool 6 stable during high-pressure gas pressure.
Preferably, lattice 10 is provided with, away from one end of spool 6, the annular sealing block 13 fitted with valve body 1 inwall, by the sealing block 13 of lattice 10 with the laminating of valve body 1 inwall, flexible pipe 12 is opened and closed, ensure that spool 6 upper and lower surface obtains equilibrium air pressure, make spool 6 move up and down in cavity 2 smoothly.
Preferably, the contact surface of valve body 1 inwall and spool 6 is provided with groove 14, and this groove 14 can make spool 6 be subject to slight pressure when lifting, gases at high pressure enter in groove 14, and discharged from air vent 4 by groove 14, thus reducing the travel frequency of spool 6, extend the service life of spool 6.
Preferably, groove 14 between valve seat 5 and air vent 4, facilitate tire heat up time air pressure inside of short duration increase time gases at high pressure slightly lift spool 6, gases at high pressure are discharged from groove 14 through air vent 4.
Preferably, the diameter of air inlet 3 is 5 times of air vent 4 diameter, it is possible to ensure that in tire, gas is from discharging from air vent 4 slowly, it is to avoid tire air pressure when of short duration intensification releases the loss of tyre pressure that excessive velocities causes.
The above, it it is only presently preferred embodiments of the present invention, not the present invention is done any pro forma restriction, any those skilled in the art, without departing within the scope of technical solution of the present invention, when the technology contents of available the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is the content without departing from technical solution of the present invention, according to any simple modification, equivalent variations and modification that above example is made by the technical spirit of the present invention, all still fall within the scope of technical solution of the present invention.
Claims (7)
- null1. a pressure limiting valve，Including valve body，It is provided with cavity in described valve body，It is characterized in that: the end, one end of described valve body is provided with the air inlet connected with described cavity，The sidepiece of described valve body is provided with the air vent connected with described cavity，The inwall of described air inlet is provided with valve seat，Described valve seat is provided with for by cavity、The spool that air inlet and air vent three are individually insulated，It is provided with push rod in described cavity，The two ends of described push rod abut described valve interior wall and described spool respectively，The middle part of described push rod is provided with the boss abutting described valve interior wall，Described push rod is also arranged with spring，The two ends of described spring abut described boss and valve interior wall respectively，The side that described spool abuts with described push rod is provided with the lattice extending to described valve interior wall，Described cavity is separated into the first chamber and the second chamber by described lattice，Described valve interior wall is additionally provided with depressed part；When described spool move make described air inlet be connected by cavity with described air vent time, described first chamber is connected by depressed part with described air inlet.
- 2. pressure limiting valve as claimed in claim 1, it is characterized in that: described valve body is communicated with the flexible pipe in described first chamber and the second chamber, when described spool move make described air inlet be connected by cavity with described air vent time, described flexible pipe is sequentially communicated, closes and connects described first chamber and the second chamber.
- 3. pressure limiting valve as claimed in claim 2, it is characterised in that: the cross section of described lattice is annular.
- 4. pressure limiting valve as claimed in claim 3, it is characterised in that: described lattice is provided with, away from one end of described spool, the annular sealing block fitted with described valve interior wall.
- 5. pressure limiting valve as claimed in claim 4, it is characterised in that: the contact surface of described valve interior wall and described spool is provided with groove.
- 6. pressure limiting valve as claimed in claim 5, it is characterised in that: described groove is between described valve seat and described air vent.
- 7. pressure limiting valve as claimed in claim 6, it is characterised in that: the diameter of described air inlet is 5-8 times of described diameter of outlet.
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 true CN105782524A (en) | 2016-07-20 |
| CN105782524B 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 |
|---|---|
| CN105782524B (en) | 2018-11-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10202889B2 (en) | Degas bottle having centrifugal air separator for use in engine cooling system | |
| EP3141784B1 (en) | Valve device | |
| CN205605903U (en) | Pressure -limiting valve | |
| CN105782524A (en) | Pressure-limiting valve | |
| CN205780944U (en) | High pressure air relief valve | |
| CN102795097B (en) | Apparatus for regulating vehicle fuel tank pressure | |
| CN103362705B (en) | A kind of fuel tank is protected valve and has the fuel tank of this protection valve | |
| CN205841785U (en) | A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass | |
| CN102927329B (en) | Filter tyre valve core | |
| CN204646363U (en) | Deaerator and motor | |
| CN106494160A (en) | The using method of trouble-proof tire anti-drip valve | |
| CN102729807A (en) | Novel oil tank for passenger car | |
| CN213745083U (en) | Valve inside of explosion-proof tyre | |
| CN210686999U (en) | High-pressure-resistant oil tank isolating valve | |
| CN203009933U (en) | Air valve | |
| CN204520520U (en) | For full indicator of dust and the dust catcher with this full indicator of dust of dust catcher | |
| JP5827573B2 (en) | valve | |
| CN202727973U (en) | Pressure regulating device for automobile fuel tank | |
| CN206563112U (en) | Fuel tank weight valve | |
| CN202071639U (en) | Inner spare tyre for tyre | |
| CN205745492U (en) | A kind of air relief valve and water heater | |
| CN102140980B (en) | Roll-over safety valve | |
| CN103047453A (en) | Air valve | |
| CN203670963U (en) | Inflating valve | |
| CN105697327A (en) | Vacuum draw-off pump with braking safety |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| 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 |