CN104896158B - Pressure-control valve and air suspension - Google Patents
Pressure-control valve and air suspension Download PDFInfo
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- CN104896158B CN104896158B CN201510362371.9A CN201510362371A CN104896158B CN 104896158 B CN104896158 B CN 104896158B CN 201510362371 A CN201510362371 A CN 201510362371A CN 104896158 B CN104896158 B CN 104896158B
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- chamber
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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
- F16K17/06—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 with special arrangements for adjusting the opening pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention provides a kind of pressure-control valve, including：Valve body, inside has the first dividing plate, and valve inner is divided into air inlet and gas outlet, and the first hole and the second hole are provided with the first dividing plate；Air inlet valve element has second partition, and air inlet valve element is separated out into first chamber and second chamber, and second partition is provided with the 3rd hole, and first chamber is connected with the first hole, and second chamber is connected with the second hole, and first chamber has the 4th hole；Outlet valve element has the 3rd dividing plate, and outlet valve element is separated out the 3rd chamber and the 4th chamber by the 3rd dividing plate, and the 3rd dividing plate is provided with the 5th hole, and the 3rd chamber is connected with the first hole, and the 4th chamber is connected with the second hole, and the 4th chamber has the 6th hole；Outlet piston, outlet adjusting screw；Inlet piston, air inlet adjusting screw.Present invention also offers a kind of air suspension.The air bag that the present invention can reduce air suspension produces fold, the risk of cracking during inflation/deflation, and easy to adjust.
Description
Technical field
The present invention relates to automotive suspension and valve field, and in particular to pressure-control valve and air suspension.
Background technology
Existing heavy truck part uses air suspension structure, and the air pressure for carrying air bag by control valve control air suspension is big
It is small, realize different carrying demands.
At present, air suspension control system both domestic and external has Electronic Control and standard machinery to control two kinds.It is electronically controlled
The principle of air suspension is as shown in figure 1, ECU (electronic control unit) sends instruction, instruction of the magnetic valve according to ECU to magnetic valve
Switched, control air-suspension bellows are inflated for deflated, and pressure sensor is by gasbag pressure signal transmission to ECU, gas receiver
Gases at high pressure are conveyed to air bag by magnetic valve, so as to realize the various functions of air suspension.The air of standard machinery control
Suspension principle by the sensing automobile load such as height load sensing valve as shown in Fig. 2 changed, air bag is arrived in directly control gas receiver output
Pressure size, realizes the inflation/deflation of air bag.
Standard machinery control gasbag pressure when deflating is deflated completely, and air bag is shrivelled, now easily makes the capsule skin of air bag
Fold, causes air bag earlier period damage.Electronic Control avoids air bag although can retain a part of pressure when deflating under ECU controls
Capsule rhicnosis pleat, but after vehicle parking is powered off, control valve also can cause the pressure loss for retaining, air bag fold because of leakage etc..
In addition, either standard machinery is controlled or Electronic Control, the gas during air bag inflation/deflation is not considered
Flow velocity problem, causes air bag to be more prone to cracking by quick inflation/deflation, at fold.
The content of the invention
The purpose of the present invention is to reduce air bag fold and cracking risk in air suspension, for this embodiments of the invention is provided
Following technical scheme：
On the one hand, there is provided a kind of pressure-control valve, including：Valve body, the valve body is tube-like piece, the valve inner tool
There is the first dividing plate, the valve inner is divided into air inlet and gas outlet, is provided with first dividing plate by first dividing plate
Connect first hole and the second hole of the air inlet and the gas outlet；Air inlet valve element, the air inlet valve element be fixed on it is described enter
In gas port, the air inlet valve element has second partition, and the air inlet valve element is separated out first chamber and by the second partition
Two chambers, the second partition is provided with the 3rd hole for connecting the first chamber and the second chamber, the first chamber with
First hole connection, the second chamber connect with second hole, and the first chamber with the air inlet with connecting
The 4th hole；Outlet valve element, the outlet valve element is fixed in the gas outlet, and the outlet valve element has the 3rd dividing plate, institute
State the 3rd dividing plate and the outlet valve element is separated out the 3rd chamber and the 4th chamber, the 3rd dividing plate is provided with connection the described 3rd
5th hole of chamber and the 4th chamber, the 3rd chamber is connected with first hole, the 4th chamber and described
Two holes connect, and the 4th chamber has the 6th hole connected with the gas outlet；Outlet piston, the outlet piston is located at institute
State in second chamber, outlet adjusting screw is extend into the second chamber through the air inlet valve element, the outlet adjusts spiral shell
On outlet spring bearer plate, the outlet spring bearer plate can be slided screw top in the second chamber, the outlet spring pressure
Be pressed on the outlet piston outlet spring so that the outlet piston is pressed at second hole so as to close in advance by plate
State the second hole；Inlet piston, the inlet piston is located in the 3rd chamber, and air inlet adjusting screw passes through the outlet valve element
It extend into the 3rd chamber, the air inlet adjusting screw is withstood on air inlet spring bearer plate, the air inlet spring bearer plate can
Slided in the 3rd chamber, be pressed in the air inlet spring on the inlet piston so that described by the air inlet spring bearer plate
Inlet piston is pressed at first hole so as to close first hole in advance.
Preferably, the aperture in the 3rd hole and the 5th hole is less than first hole and the aperture in second hole.
Preferably, aperture of the aperture in the 3rd hole less than the 4th hole.
Preferably, aperture of the aperture in the 5th hole less than the 6th hole.
Preferably, the air inlet valve element and the outlet valve element by jump ring be separately fixed at the air inlet and it is described go out
In gas port.
Preferably, the mode that the air inlet valve element and the outlet valve element are connected through a screw thread is separately fixed at the air inlet
In mouth and the gas outlet.
On the other hand, there is provided a kind of air suspension, including pressure-control valve as described above and air bag, the pressure control
The gas outlet of valve processed connects the air bag.
Preferably, above-mentioned air suspension also includes control magnetic valve, and the air inlet of the pressure-control valve connects the control
Magnetic valve processed.
Preferably, above-mentioned air suspension also includes height load sensing valve, and the air inlet of the pressure-control valve connects the height
Degree load sensing valve.
The pressure-control valve of embodiments of the invention, when needing to be inflated air bag, compressed air is entered from air inlet
Enter, outlet piston is tightly pressed against at the second hole into second chamber on the one hand, on the other hand act on air inlet by the first hole
Piston upper, force inlet piston oppress air inlet spring shrink it, the first hole open, gas through the 3rd chamber, the 4th chamber,
6th hole enters gas outlet, air bag is entered afterwards and realizes inflation；When needing to deflate air bag, air inlet air pressure is removed,
The pressure of gas outlet more than air inlet pressure, force gas outlet air on the one hand enter the 3rd chamber by inlet piston tightly
It is pressed at the first hole, on the other hand acts on outlet piston upper through the second hole, forces outlet plunger forces outlet spring to make it
Shrink, the second hole is opened, gas enters air inlet, realizes air bag deflation through second chamber, first chamber, the 4th hole.And when sky
Gas suspension bags pressure is reduced when to a certain extent, i.e. the pressure reduction of gas outlet, and now compressed air is not enough to force outlet
Piston compresses outlet spring, and the first hole, the second hole are closed, and air bag is no longer deflated, and gasbag pressure is no longer reduced, and realizes pressure
Try hard to keep and hold function, reduce the generation of air bag fold.And, by adjusting air inlet adjustment bolt and exhaust adjustment bolt, can
The pre-pressing force of air inlet spring or outlet spring is easily adjusted, changes the initial inflation/deflation pressure size of air bag.
Further, the 3rd hole and the 5th hole use less aperture, and during inflation/deflation, gas is laterally low from high pressure
During pressure side is flowed, the buffering in the 3rd hole or the 5th hole is experienced, so that inflation/deflation process is gentler, reduced
The risk of air bag fold cracking.
Brief description of the drawings
Fig. 1 is the schematic diagram of typical electronically controlled air suspension；
Fig. 2 is the schematic diagram of the air suspension of typical standard machinery control；
Fig. 3 is the structural representation of the pressure-control valve of embodiments of the invention.
Description of symbols in figure：1st, valve body, 2, air inlet jump ring, 3, air inlet valve element, 4, inlet piston, 5, air inlet spring, 6,
Outlet valve element, 7, gas outlet jump ring, 8, outlet spring, 9, outlet piston, the 10, first dividing plate, the 11, first hole, the 12, second hole,
13rd, second partition, the 14, the 3rd hole, the 15, the 4th hole, the 16, the 3rd dividing plate, the 17, the 5th hole, the 18, the 6th hole, 19, first chamber,
20th, second chamber, the 21, the 3rd chamber, the 22, the 4th chamber, 23, outlet spring bearer plate, 24, outlet adjusting screw, 25, air inlet bullet
Spring pressing plate, 26, air inlet adjusting screw, 100, air inlet, 200, gas outlet.
Specific embodiment
With reference to Fig. 3, the pressure-control valve of the present embodiment includes：Valve body 1, air inlet jump ring 2, air inlet valve element 3, inlet piston
4th, air inlet spring 5, outlet valve element 6, gas outlet jump ring 7, outlet spring 8, outlet piston 9 etc..Valve body 1 is tube-like piece, in valve body 1
Portion has the first dividing plate 10, and the first dividing plate 10 will be divided into air inlet 100 and outlet respectively positioned at the left and right sides inside valve body 1
Mouth 200.First hole 11 and the second hole 12 of connection air inlet 100 and gas outlet 200 are provided with first dividing plate 10.Air inlet valve element 3
After insertion air inlet 100, it is fixed in air inlet 100 with air inlet jump ring 2, prevents air inlet valve element 3 from loosening and give up the throne.This area skill
It should be appreciated that air inlet valve element 3 can also be machined with external screw thread, valve body 1 can be machined with internal thread, air inlet valve element to art personnel
3 screw in valve body 1 so as to realize threaded connection between the two, so as to air inlet valve element 3 is fixed in air inlet 100.Air inlet valve element 3
With second partition 13, air inlet valve element 3 is separated out first chamber 19 and second chamber 20 by second partition 13.Second partition 13 is opened
There is the 3rd hole 14 of connection first chamber 19 and second chamber 20.First chamber 19 is connected with the first hole 11, second chamber 20 with
Second hole 12 connects.First chamber 19 has the 4th hole 15 that is connected with air inlet 100, and second chamber 20 not with air inlet
100 connections.It should be noted that above and in following description, " connection " refers in particular to directly connection, and " not connecting " refers in particular to
Do not connect directly, such as first chamber 19 is directly connected with air inlet 100 by the 4th hole 15, and second chamber 20 and air inlet
Have no directly opening between mouthfuls 100, but second chamber 20 by the 3rd hole 14, first chamber 19, the 4th hole 15 and can be entered
The indirect communication of gas port 100.Similar to air inlet valve element 3, outlet valve element 6 is consolidated by way of gas outlet jump ring 7 or threaded connection
It is scheduled in gas outlet 200, outlet valve element 6 has the 3rd dividing plate 16, outlet valve element 6 is separated out the 3rd chamber 21 by the 3rd dividing plate 16
With the 4th chamber 22.3rd dividing plate 16 is provided with the 5th hole 17 of the 3rd chamber 21 of connection and the 4th chamber 22.3rd chamber 21 with
First hole 11 is connected, and the 4th chamber 22 is connected with the second hole 12, and the 4th chamber 22 has the 6th hole connected with gas outlet 200
18.Outlet piston 9 is located in second chamber 20, and outlet adjusting screw 24 is extend into second chamber 20 through air inlet valve element 3,
In second chamber 20, outlet adjusting screw 24 is withstood on outlet spring bearer plate 23, and outlet spring bearer plate 23 can be in second chamber
Interior 20 slide, and be pressed on outlet piston 9 outlet spring 8 so that outlet piston 9 is pressed in the second hole in advance by outlet spring bearer plate 23
So as to close the second hole 12 at 12.Inlet piston 4 is located in the 3rd chamber 21, and air inlet adjusting screw 26 is stretched through outlet valve element 6
Enter in the 3rd chamber 21, in the 3rd chamber 21, air inlet adjusting screw 26 is withstood on air inlet spring bearer plate 25, air inlet spring pressure
Plate 25 can be slided in the 3rd chamber 21, and be pressed in air inlet spring 5 on inlet piston 4 and cause that air inlet is lived by air inlet spring bearer plate 25
Plug 4 is pressed at the first hole 11 so as to close the first hole 11 in advance.
When the pressure-control valve of the present embodiment is applied into air suspension, Electronic Control can either be used, can used again
Standard machinery is controlled.During using electronically controlled mode, the connection of gas outlet 200 air bag of pressure-control valve, pressure-control valve
The connection control magnetic valve of air inlet 100；When by the way of standard machinery control, the connection of gas outlet 200 gas of pressure-control valve
Capsule, the connection height load sensing valve of air inlet 100 of pressure-control valve.
The operation principle of the pressure-control valve of the present embodiment is：When needing to be inflated air bag, the side of air inlet 100
It is high-pressure side, the side of gas outlet 200 is low-pressure side, and compressed air enters from air inlet 100, on the one hand, partial air is through the 4th
Hole 15, first chamber 19, the 3rd hole 14 enter second chamber 20, and in second chamber 20, this partial air is tight by outlet piston 9
It is pressed at the second hole 12, the second hole 12 is closed, on the other hand, partial air is through the 4th hole 15, first chamber 19, the first hole
11 act on above inlet piston 4, force inlet piston 4 to overcome the pretightning force of air inlet spring 5, and compressing air inlet spring 5 receives it
Contracting, therefore the first hole 11 opens, gas continues on through the 3rd chamber 21, the 5th hole 17, the 4th chamber 22, the 6th hole 18 and enters outlet
Mouth 200, enters air bag and realizes inflation afterwards；When needing to deflate air bag, the air pressure of air inlet 100 is removed, now air inlet
100 sides of mouth are low-pressure side, and gas outlet 200 turns into high-pressure side due to communicated air bags, and the pressure of gas outlet 200 is more than air inlet
100 pressure, after the compressed air in air bag enters gas outlet 200, on the one hand, portion gas are through the 6th hole 18, the 4th chamber
22nd, the 5th hole 17 enters the 3rd chamber 21, and in the 3rd chamber 21, inlet piston 4 is tightly pressed against the first hole by this partial air
At 11, the first hole 11 is closed, on the other hand, portion gas act on outlet through the 6th hole 18, the 4th chamber 22, the second hole 12
Above piston 9, outlet piston 9 is forced to overcome the pretightning force of outlet spring 8, compressing outlet spring 8 shrinks it, the second 12 dozens, hole
Open, gas continues on through second chamber 20, the 3rd hole 14, first chamber 19, the 4th hole 15 into air inlet 100, realizes that air bag is put
Gas.And when the gasbag pressure of air suspension is reduced to a certain extent, i.e. the pressure reduction of gas outlet 200, now in air bag
Compressed air is not enough to force outlet piston 9 to compress outlet spring 8, and the first hole 11, the second hole 12 are closed, and air bag is no longer put
Gas, gasbag pressure is no longer reduced, and is realized pressure and is kept function, reduces the generation of air bag fold.At the beginning of needing to change air bag
During beginning the blowing pressure size, the screw-in depth of adjustment air inlet adjusting screw 26, it becomes possible to adjust the position of air inlet spring bearer plate 25,
So as to adjust the pretightning force of air inlet spring 5；When needing to change the initial blow off pressure size of air bag, adjustment outlet adjusting screw 24
Screw-in depth, it becomes possible to the position of outlet spring bearer plate 23 is adjusted, so as to adjust the pretightning force of outlet spring 8.And from air inlet
Mouth 100 or the side of gas outlet 200, can easily stretch into instrument or manually to air inlet adjusting screw 26 or exhaust tune
Whole screw 24 is adjusted.
In the present embodiment, there is minimum-value aperture, i.e. both apertures to be less than the first hole 11 for the 3rd hole 14 and the 5th hole 17
With the aperture that the aperture in the aperture in the second hole 12, and the 3rd hole 14 is less than the 4th hole 15, the aperture in the 5th hole 17 is less than the 6th
The aperture in hole 18.So, in the gas replenishment process of air bag, low-pressure side of the gas from the lateral gas vent 200 of high pressure of air inlet 100
During flowing, the buffering in the 3rd hole 14 is experienced, gas was full of first chamber 19, the 3rd chamber with elevated pressures before this
21, the 4th chamber 22 is then just full of, into air bag, the air pressure in the 4th chamber 22 rises slowly, in inflation incipient stage, gas
Capsule will not occur drastically to expand；And in deflation course, low-pressure side of the gas from the lateral air inlet 100 of high pressure of gas vent 200
During flowing, gas was full of the 4th chamber 22, second chamber 20 with elevated pressures before this, was then just full of first chamber
19, air bag is discharged, the air pressure in first chamber 19 rises also relatively slowly, and in the incipient stage of deflating, air bag will not occur drastically to receive
Contracting.Therefore, the inflation/deflation process of air bag is gentler, reduces the risk of air bag fold cracking.
Although present invention combination above example is described, the present invention is not limited to above-described embodiment.This
Field those of ordinary skill easily can modify and change to it, but and without departing from essential idea of the invention and model
Enclose.
Claims (9)
1. a kind of pressure-control valve, it is characterised in that including：
Valve body, the valve body is tube-like piece, and the valve inner has the first dividing plate, and first dividing plate is by the valve inner
It is divided into air inlet and gas outlet, the first hole for connecting the air inlet and the gas outlet and the is provided with first dividing plate
Two holes；
Air inlet valve element, the air inlet valve element is fixed in the air inlet, and the air inlet valve element has second partition, described second
The air inlet valve element is separated out first chamber and second chamber by dividing plate, the second partition be provided with the connection first chamber and
3rd hole of the second chamber, the first chamber is connected with first hole, and the second chamber connects with second hole
Logical, the first chamber has the 4th hole connected with the air inlet；
Outlet valve element, the outlet valve element is fixed in the gas outlet, and the outlet valve element has the 3rd dividing plate, the described 3rd
The outlet valve element is separated out the 3rd chamber and the 4th chamber by dividing plate, the 3rd dividing plate be provided with connection the 3rd chamber and
5th hole of the 4th chamber, the 3rd chamber is connected with first hole, and the 4th chamber connects with second hole
Logical, the 4th chamber has the 6th hole connected with the gas outlet；
Outlet piston, the outlet piston is located in the second chamber, and outlet adjusting screw is stretched into through the air inlet valve element
To in the second chamber, the outlet adjusting screw is withstood on outlet spring bearer plate, and the outlet spring bearer plate can be in institute
State in second chamber and slide, be pressed in for outlet spring the outlet piston is caused on the outlet piston by the outlet spring bearer plate
It is pressed in advance at second hole so as to close second hole；
Inlet piston, the inlet piston is located in the 3rd chamber, and air inlet adjusting screw is stretched into through the outlet valve element
To in the 3rd chamber, the air inlet adjusting screw is withstood on air inlet spring bearer plate, and the air inlet spring bearer plate can be in institute
State in the 3rd chamber and slide, be pressed in for air inlet spring the inlet piston is caused on the inlet piston by the air inlet spring bearer plate
It is pressed in advance at first hole so as to close first hole.
2. pressure-control valve according to claim 1, it is characterised in that the aperture in the 3rd hole and the 5th hole is small
In first hole and the aperture in second hole.
3. pressure-control valve according to claim 1 and 2, it is characterised in that the aperture in the 3rd hole is less than described the
The aperture in four holes.
4. pressure-control valve according to claim 1 and 2, it is characterised in that the aperture in the 5th hole is less than described the
The aperture in six holes.
5. pressure-control valve according to claim 1, it is characterised in that the air inlet valve element and the outlet valve element pass through
Jump ring is separately fixed in the air inlet and the gas outlet.
6. pressure-control valve according to claim 1, it is characterised in that the air inlet valve element and the outlet valve element pass through
The mode of threaded connection is separately fixed in the air inlet and the gas outlet.
7. a kind of air suspension, it is characterised in that including the pressure-control valve as described in any one of claim 1 to 6 and
Air bag, the gas outlet of the pressure-control valve connects the air bag.
8. air suspension according to claim 7, it is characterised in that also including control magnetic valve, the pressure-control valve
Air inlet connect the control magnetic valve.
9. air suspension according to claim 7, it is characterised in that also including height load sensing valve, the pressure-control valve
Air inlet connect the height load sensing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362371.9A CN104896158B (en) | 2015-06-26 | 2015-06-26 | Pressure-control valve and air suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362371.9A CN104896158B (en) | 2015-06-26 | 2015-06-26 | Pressure-control valve and air suspension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104896158A CN104896158A (en) | 2015-09-09 |
| CN104896158B true CN104896158B (en) | 2017-07-04 |
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ID=54029010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510362371.9A Active CN104896158B (en) | 2015-06-26 | 2015-06-26 | Pressure-control valve and air suspension |
Country Status (1)
| Country | Link |
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| CN (1) | CN104896158B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466267B (en) * | 2018-12-04 | 2023-10-20 | 广东机电职业技术学院 | Vehicle air bag height adjusting device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3936439B2 (en) * | 1997-07-22 | 2007-06-27 | イーグル工業株式会社 | Control valve for variable capacity compressor of air conditioner |
| CN201462115U (en) * | 2009-06-09 | 2010-05-12 | 国营险峰机器厂 | Novel positive pressure air filling and releasing valve |
| JP5573891B2 (en) * | 2012-06-11 | 2014-08-20 | 株式会社デンソー | Relief valve device |
| CN103511706B (en) * | 2012-06-15 | 2015-07-22 | 十堰科纳汽车电器有限公司 | Electronic control communication module |
| CN203836321U (en) * | 2014-04-01 | 2014-09-17 | 北汽福田汽车股份有限公司 | Air bag pressure regulating valve assembly and vehicle suspension assembly |
| CN204985893U (en) * | 2015-06-26 | 2016-01-20 | 安徽江淮汽车股份有限公司 | Pressure control valve and air suspension |
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2015
- 2015-06-26 CN CN201510362371.9A patent/CN104896158B/en active Active
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| CN104896158A (en) | 2015-09-09 |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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