CN208469782U - A kind of multi-functional relay valve of double-piston - Google Patents
A kind of multi-functional relay valve of double-piston Download PDFInfo
- Publication number
- CN208469782U CN208469782U CN201821004041.8U CN201821004041U CN208469782U CN 208469782 U CN208469782 U CN 208469782U CN 201821004041 U CN201821004041 U CN 201821004041U CN 208469782 U CN208469782 U CN 208469782U
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- Prior art keywords
- piston
- valve body
- air flue
- double
- assisted channel
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- 230000007246 mechanism Effects 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a kind of multi-functional relay valves of double-piston, it is desirable to provide a kind of adaptable multi-functional relay valve of double-piston.It includes upper valve body, lower valve body, valve member, piston group and spring；Multiple gas off-takes and at least one air intake duct are provided in the lower valve body；Setting braking air flue on upper valve body；Piston group includes being located at the intracorporal first piston of upper valve body chamber, and the second piston in first piston lower end；The lower part of second piston is connect with lower valve body inner wall hermetic seal, and the upper end face product of the second piston is greater than its rear surface product；There is the first brake chamber between the upper end and upper valve body inner wall of the first piston, there is the second brake chamber between the upper end and first piston inner wall of the second piston；The connection of the spool of the second piston and valve member；The first piston upper center has the guide part with upper valve body inner wall hermetic seal, and the guide part center has the second brake chamber of connection and brakes the venthole of air flue.
Description
Technical field
The utility model relates to brake and drive system for vehicle with tow technical fields, more particularly, to a kind of multi-functional relay valve of double-piston.
Background technique
Relay valve belongs to a part of automobile air brake braking system, and in the braking system of automobile, relay valve plays shortening
The effect in reaction time and pressure settling time.When automobile brake, the braking pressure of brake valve of car, in short-term in cannot be complete
Relay valve valve is opened, causes automobile brake bad, is difficult that vehicle is made to stop safely when overloaded, braking effect is bad.
Utility model content
The purpose of this utility model is intended to overcome the shortcomings of the prior art, provides a kind of dual-active of good braking effect
Fill in multi-functional relay valve.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions:
A kind of multi-functional relay valve of double-piston, including upper valve body, the lower valve body connecting with upper valve body are installed in lower valve body
Valve member, for driving the piston group of valve member, and the spring for return piston group；It is arranged in the lower valve body
There are multiple gas off-takes and at least one air intake duct；Setting braking air flue on the upper valve body；The piston group includes positioned at upper
The intracorporal first piston of valve body cavity, and the second piston in first piston lower end；The lower part of the second piston is under
The upper end face product of valve interior wall hermetic seal connection, the second piston is greater than its rear surface product；The first piston it is upper
There is the first brake chamber between end and upper valve body inner wall, there is the second system between the upper end and first piston inner wall of the second piston
It takes offence room；The lower end of the second piston is in contact with the spool of valve member；The first piston upper center have with it is upper
The guide part of valve interior wall hermetic seal, the guide part center have the second brake chamber of connection and brake the venthole of air flue；
It further includes being connected to the assisted channel of air intake duct and the first brake chamber, and be set on upper valve body, be logical for controlling power-assisted
The regulating mechanism of road opening and closing；The driving end of the regulating mechanism is connected to braking air flue.
Preferably, the regulating mechanism includes the control for being set on upper valve body, being connected to assisted channel and braking air flue
Chamber processed is set in control chamber, the third piston positioned at braking air flue one end, for the return spring of return third piston, with
And it is set in control chamber, fourth piston opposite with third piston；When return spring compression, third piston is to the 4th piston
Direction is mobile, and assisted channel is opened；When return spring resets, assisted channel is closed.
Preferably, the assisted channel uses external pipeline.
Preferably, the assisted channel uses built-in air flue.
Compared with prior art, the utility model has the advantages that
When automobile brake, the valve member of relay valve is opened, and the atmospheric pressure that brake chamber is entered in the short time cannot produce
Raw good braking effect.The utility model is adjusted by setting regulating mechanism when the atmospheric pressure for entering brake chamber is greater than
When the setting value of mechanism, in the case, the high pressure air pressure in air intake duct is passed through assisted channel importing the by regulating mechanism movement
In one brake chamber, first piston is compressed rapidly moving downward, cooperation second piston reaches the very sensitive effect of braking.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model one embodiment.
Fig. 2 is the structural schematic diagram of second embodiment of the utility model.
Fig. 3 is the structural schematic diagram of lower valve body in Fig. 2.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are under that premise of not paying creative labor
Every other embodiment obtained, fall within the protection scope of the utility model.In the following description, in order to clearly demonstrate originally
The structure and working method of utility model will be described on the basis of attached drawing by many Directional words, but should be incited somebody to action
The Word Understandings such as "front", "rear", "left", "right", "upper", "lower" are not construed as word of limitation for convenience of term.
Embodiment 1
The multi-functional relay valve of double-piston shown in FIG. 1, including upper valve body 1, the lower valve body 2 connecting with upper valve body 1 are installed on
Valve member 3 in lower valve body 2, for driving the piston group of valve member 3, and the spring 4 for return piston group；It is described
Multiple gas off-takes 5 and at least one air intake duct 6 are provided in lower valve body 2；Setting braking air flue 7 on the upper valve body 1；Institute
Stating piston group includes being located at the intracorporal first piston 8 of 1 chamber of upper valve body, and the second piston 9 in 8 lower end of first piston；
The lower part of the second piston 9 is connect with 2 inner wall hermetic seal of lower valve body, and the upper end face product of the second piston 9 is greater than under it
End surface area；There is the first brake chamber 10 between 1 inner wall of upper end and upper valve body of the first piston 8, the second piston 9
There is the second brake chamber 11 between 8 inner wall of upper end and first piston；The lower end of the second piston 9 and the spool of valve member 3
31 are in contact；8 upper center of first piston has the guide part with 1 inner wall hermetic seal of upper valve body, the guide part center
Venthole 12 with the second brake chamber 11 of connection and braking air flue 7；It further includes connection air intake duct 6 and the first brake chamber
10 assisted channel 13, and be set on upper valve body 1, the regulating mechanism 14 for controlling the opening and closing of assisted channel 13；The tune
The driving end 19 for saving mechanism 14 is connected to braking air flue 7.
Wherein, the regulating mechanism 14 includes being set on upper valve body 1, being connected to assisted channel 13 and braking air flue 7
Control chamber 15 is set in control chamber 15, the third piston 16 positioned at braking 7 one end of air flue, for return third piston 16
Return spring 17, and be set in control chamber 15, fourth piston 18 opposite with third piston 16；When return spring 17 compresses
When, third piston 16 is mobile to 18 direction of the 4th piston, and assisted channel 13 is opened；When return spring 17 resets, assisted channel
13 close.Obviously, other applicable operated pneumatic valves also can be used in the regulating mechanism 14.
Closing of 4th piston for control chamber end at the same time can also be by the 4th piston to return spring
Compression degree be adjusted, realize regulating mechanism working set value adjusting.
In the present embodiment, the assisted channel 13 uses built-in air flue, wherein illustrating only part-structure, it is clear that described
External pipeline also can be used in assisted channel 13.
Embodiment 2
The multi-functional relay valve of double-piston shown in Fig. 2-3, wherein using the lower valve body of another structure type (under three bridges
Valve body), remaining is essentially identical with above-described embodiment.It will be apparent that other applicable lower valve bodies also can be used in the lower valve body.
Working method is as follows:
The utility model is by setting regulating mechanism, and when automobile zero load braking, the valve member of relay valve is opened, at this time
Into brake chamber atmospheric pressure be less than regulating mechanism setting value when, in the case, regulating mechanism is failure to actuate, brake gas
The air pressure in road enters the second brake chamber, and driving second piston realizes the effective brake of automobile zero load.When automobile is fully loaded or overloads
When braking, it is only unable to satisfy the effective brake of automobile by the brake force of second piston, enters the air pressure pressure of brake chamber at this time
When power is greater than the setting value of regulating mechanism, in the case, regulating mechanism is opened under the driving of braking pressure, will be in air intake duct
High pressure air pressure by assisted channel import the first brake chamber in, first piston is compressed it is rapidly moving downward, cooperation second
Piston reaches the very sensitive effect of braking；I.e. when automobile is fully loaded or overloads braking, what the utility model first piston was constituted
The braking system that braking system can assist second piston to constitute, realizes the quick unlatching of valve member, it is ensured that automobile has best
Brake force.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (4)
1. a kind of multi-functional relay valve of double-piston, including upper valve body (1), the lower valve body (2) connecting with upper valve body (1), are installed on
Valve member (3) in lower valve body (2), for driving the piston group of valve member (3), and the spring for return piston group
(4)；Multiple gas off-takes (5) and at least one air intake duct (6) are provided on the lower valve body (2)；On the upper valve body (1)
Setting braking air flue (7)；It is characterized by: the piston group includes being located at the intracorporal first piston of upper valve body (1) chamber (8), with
And it is located at the second piston (9) in first piston (8) lower end；The lower part of the second piston (9) and lower valve body (2) inner wall are airtight
The upper end face product of envelope connection, the second piston (9) is greater than its rear surface product；The upper end of the first piston (8) with it is upper
There are the first brake chamber (10) between valve body (1) inner wall, have between the upper end and first piston (8) inner wall of the second piston (9)
There are the second brake chamber (11)；Second piston (9) lower end is in contact with the spool (31) of valve member (3)；Described first
Piston (8) upper center has the guide part with upper valve body (1) inner wall hermetic seal, and the guide part center has the second system of connection
Take offence room (11) and brake air flue (7) venthole (12)；It further includes connection air intake duct (6) and the first brake chamber (10)
Assisted channel (13), and be set on upper valve body (1), the regulating mechanism (14) for controlling assisted channel (13) opening and closing；Institute
The driving end (19) for stating regulating mechanism (14) is connected to braking air flue (7).
2. the multi-functional relay valve of double-piston according to claim 1, it is characterised in that: the regulating mechanism (14) includes setting
In the control chamber (15) being connected on upper valve body (1), with assisted channel (13) and braking air flue (7), be set in control chamber (15),
Third piston (16) positioned at braking air flue (7) one end is used for the return spring (17) of return third piston (16), and setting
In the control chamber (15), with the 4th opposite piston (18) of third piston (16)；When return spring (17) compression, third piston
(16) mobile to the 4th piston (18) direction, assisted channel (13) is opened；When return spring (17) reset, assisted channel (13)
It closes.
3. the multi-functional relay valve of double-piston according to claim 1 or claim 2, it is characterised in that: the assisted channel (13) uses
External pipeline.
4. the multi-functional relay valve of double-piston according to claim 1 or claim 2, it is characterised in that: the assisted channel (13) uses
Built-in air flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821004041.8U CN208469782U (en) | 2018-06-28 | 2018-06-28 | A kind of multi-functional relay valve of double-piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821004041.8U CN208469782U (en) | 2018-06-28 | 2018-06-28 | A kind of multi-functional relay valve of double-piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208469782U true CN208469782U (en) | 2019-02-05 |
Family
ID=65215639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821004041.8U Expired - Fee Related CN208469782U (en) | 2018-06-28 | 2018-06-28 | A kind of multi-functional relay valve of double-piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208469782U (en) |
-
2018
- 2018-06-28 CN CN201821004041.8U patent/CN208469782U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 |