CN203020301U - Automatic assistance trailer valve - Google Patents
Automatic assistance trailer valve Download PDFInfo
- Publication number
- CN203020301U CN203020301U CN 201220725501 CN201220725501U CN203020301U CN 203020301 U CN203020301 U CN 203020301U CN 201220725501 CN201220725501 CN 201220725501 CN 201220725501 U CN201220725501 U CN 201220725501U CN 203020301 U CN203020301 U CN 203020301U
- Authority
- CN
- China
- Prior art keywords
- cavity
- piston
- valve
- middle body
- valve assembly
- 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.)
- Expired - Fee Related
Links
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses an automatic assistance trailer valve. The trailer valve comprises an intermediate body, wherein an upper cover is arranged at the end part of the intermediate body; a first piston is arranged inside the intermediate body; an air outlet is formed in the lateral wall of the middle part of the intermediate body, and an exhaust port is formed in the bottom of the intermediate body; a valve assembly is arranged on the lower part of the intermediate body, and a large valve is arranged inside the valve assembly; a spring is arranged between the large valve and the shell of the valve assembly; a notch is formed in the shell of the valve assembly, and is connected with the air inlet which is formed in the wall of the intermediate body; a cavity connected with a third control port is formed between the lower part of the shell of the valve assembly and the intermediate body; a hand brake control piston is arranged in the cavity; a cavity is formed among a first piston, the end part of the intermediate body and the inner wall of the upper cover, and is separated into a first cavity body and a second cavity body through a second piston which is arranged on the end part of the first piston; and a third cavity is formed between the first piston and the intermediate body. The automatic assistance trailer valve is simple and smart in structure, and can be used for reducing abrasion of tires in light brake and automatically increasing braking force in heavy brake.
Description
Technical field
The utility model belongs to vehicle component, especially relates to a kind of autoamtic boosting trailer valve.
Background technology
Servo-brake relay valve on existing vehicle, when light brake, easily make the tire severe wear, but when hard braking, can not increase braking force, lack of staying power, major cause is the configuration aspects Shortcomings, make the structural piston pressure of vehicle brake excessive, for once the property air feed, require further improvement.
Addressing these problems is extremely urgent as from the foregoing!
In view of this, the inventor has done deep research to this, designs a kind of autoamtic boosting trailer valve, and exquisiteness simple in structure when light brake, reduces the wearing and tearing of tire, and when hard braking, automatic torque-increasing adds braking force, and this case produces thus.
The utility model content
The purpose of this utility model is for a kind of autoamtic boosting trailer valve is provided, exquisiteness simple in structure, and exquisiteness simple in structure when light brake, reduces the wearing and tearing of tire, and when hard braking, automatic torque-increasing adds braking force.
For achieving the above object, the technical solution of the utility model is:
the autoamtic boosting trailer valve, comprise middle body, end at middle body is provided with upper cover, inside at middle body is provided with first piston, be provided with air extractor duct on the sidewall of the middle part of middle body, the bottom is provided with exhausr port, bottom at middle body is provided with valve assembly, the inside of this valve assembly is provided with large valve, be provided with spring between large valve and valve assembly shell, described valve assembly shell is provided with breach, the setting that is connected with admission port on being arranged on middle body wall of this breach, form with the 3rd between the bottom of valve assembly shell and middle body and control a mouthful cavity that is connected, be provided with the stopping brake lock control plunger in cavity, it is characterized in that: described first piston and middle end of body, form cavity between the upper cover inwall, the second piston of the end of this cavity by being arranged on first piston is separated into the first cavity and the second cavity, form the 3rd cavity between first piston and middle body.
Preferably, described the first cavity and the first control mouth are connected setting.
Preferably, described the second cavity is controlled and mouthful is connected setting by being formed on first piston bottom and the cavity and second between middle body, is provided with passage between the second cavity and cavity.
Preferably, the outer wall of described the second piston is provided with seal ring, and the inwall of sealing circle and first piston forms sliding sealing.
Preferably, the inside, upper end of described first piston is provided with controller, and the lower end is provided with the adjusting nut with air gate, is provided with minor valve in described controller, is provided with spring between minor valve and controller, and minor valve is buckled on air gate; Be provided with spring between controller and first piston, the outer wall of described controller is provided with seal ring, the inwall of sealing circle and first piston forms sliding sealing, forms cavity between the lower end of this controller and first piston, is provided with interface channel between described cavity and the 3rd cavity.
Preferably, the upper end outer wall of described first piston, middle part are provided with seal ring, form sliding sealing between the inboard end wall of described seal ring and middle body.
The sliding sealing that the utility model is mentioned refers to that the sealing circle can form sealing when not sliding, and also can form sealing when sliding.
The beneficial effects of the utility model: the utility model exquisiteness simple in structure, exquisiteness simple in structure when light brake, reduces the wearing and tearing of tire, and when hard braking, automatic torque-increasing adds braking force.
In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
with reference to accompanying drawing 1, the present embodiment discloses a kind of autoamtic boosting trailer valve, comprise middle body 1, be provided with upper cover 2 in the end of middle body 1, be provided with first piston 3 in the inside of middle body 1, be provided with air extractor duct 11 on the sidewall of the middle part of middle body 1, the bottom is provided with exhausr port 12, bottom at middle body 1 is provided with valve assembly, the inside of this valve assembly is provided with large valve 13, be provided with spring 35 between large valve 13 and valve assembly shell 14, described valve assembly shell 14 is provided with breach, the setting that is connected with admission port 15 on being arranged on middle body 1 wall of this breach, form with the 3rd between the bottom of valve assembly shell 14 and middle body 1 and control mouth 71 cavitys that are connected, be provided with stopping brake lock control plunger 16 in cavity.It is characterized in that: form cavity between described first piston 3 and middle body 1 end, upper cover 2 inwalls, the second piston 4 of the end of this cavity by being arranged on first piston 3 is separated into the first cavity 5 and the second cavity 6, forms the 3rd cavity 7 between first piston 3 and middle body 1.
Described the first cavity 5 and first is controlled mouth 51 and is connected setting.
Described the second cavity 6 is controlled mouthfuls 61 and is connected setting by being formed on first piston 3 bottoms and the cavity and second between middle body 1, is provided with passage between the second cavity 6 and cavity.
The outer wall of described the second piston 4 is provided with seal ring 10, and sealing circle 10 forms sliding sealing with the inwall of first piston 3.
The inside, upper end of described first piston 3 is provided with controller 31, and the lower end is provided with the adjusting nut 33 with air gate 32, is provided with minor valve 34 in described controller 31, is provided with spring 35 between minor valve 34 and controller 31, and minor valve 34 is buckled on air gate; Be provided with spring 35 between controller 31 and first piston 3, the outer wall of described controller 31 is provided with seal ring 10, sealing circle 10 forms sliding sealing with the inwall of first piston 3, form cavity between the lower end of this controller 31 and first piston 3, be provided with interface channel between described cavity and the 3rd cavity 7.
The upper end outer wall of described first piston 3, middle part are provided with seal ring 10, form sliding sealing between described seal ring 10 and the inboard end wall of middle body 1.
Automobile is when carrying out the pneumatic brake braking, when pin gently touches on the brake, master cylinder output gas on vehicle is controlled mouth 51 from first and is entered the first cavity 5, controlling mouth 61 from second enters in the second cavity 6, enter in large valve 13 from admission port 15, because there is pressure in gas, gas in the first cavity 5 produces application force to first piston 3, first piston 3 moves downward, back down large valve 13, realize crack state, the gas in large valve 13 is gone out from exhausr port 12, send in brake pump, realize slightly brake.
At this moment, the gas in the second cavity 6 enters in the 3rd cavity 7 through interface channel because the minor valve 34 in controller 31 is opened.
When pin heavily touches on the brake, gas is controlled mouth 51 from first and is entered in the first cavity 5, controlling mouth 61 from second enters in the second cavity 6, at this moment, the gas in the first cavity 5, the second cavity 6 and the 3rd cavity 7 all produces powerful application force to first piston 3, makes first piston 3 down movable rapidly, back down large valve 13, make large valve 13 thoroughly open, discharge all gas, produce the hard braking effect.
When needs were removed brake, the gas in the first cavity 5 was controlled mouth 51 from first and is discharged, and the gas in the second cavity 6 and the 3rd cavity 7 is discharged from exhausr port 12.
As from the foregoing, the utility model exquisiteness simple in structure, exquisiteness simple in structure when light brake, reduces the wearing and tearing of tire, and when hard braking, automatic torque-increasing adds braking force.
The above is only an embodiment of the present utility model, is not the restriction to this case design, and all equivalent variations of doing according to the design key of this case all fall into the protection domain of this case.
Claims (6)
1. autoamtic boosting trailer valve, comprise middle body, end at middle body is provided with upper cover, inside at middle body is provided with first piston, be provided with air extractor duct on the sidewall of the middle part of middle body, the bottom is provided with exhausr port, bottom at middle body is provided with valve assembly, the inside of this valve assembly is provided with large valve, be provided with spring between large valve and valve assembly shell, described valve assembly shell is provided with breach, the setting that is connected with admission port on being arranged on middle body wall of this breach, form with the 3rd between the bottom of valve assembly shell and middle body and control a mouthful cavity that is connected, be provided with the stopping brake lock control plunger in cavity, it is characterized in that: described first piston and middle end of body, form cavity between the upper cover inwall, the second piston of the end of this cavity by being arranged on first piston is separated into the first cavity and the second cavity, form the 3rd cavity between first piston and middle body.
2. autoamtic boosting trailer valve according to claim 1, it is characterized in that: described the first cavity and first is controlled mouth and is connected setting.
3. autoamtic boosting trailer valve according to claim 1 is characterized in that: described the second cavity is controlled and mouthful is connected setting by being formed on first piston bottom and the cavity and second between middle body, is provided with passage between the second cavity and cavity.
4. autoamtic boosting trailer valve according to claim 1, it is characterized in that: the outer wall of described the second piston is provided with seal ring, and the inwall of sealing circle and first piston forms sliding sealing.
5. autoamtic boosting trailer valve according to claim 1, it is characterized in that: the inside, upper end of described first piston is provided with controller, the lower end is provided with the adjusting nut with air gate, be provided with minor valve in described controller, be provided with spring between minor valve and controller, minor valve is buckled on air gate; Be provided with spring between controller and first piston, the outer wall of described controller is provided with seal ring, the inwall of sealing circle and first piston forms sliding sealing, forms cavity between the lower end of this controller and first piston, is provided with interface channel between described cavity and the 3rd cavity.
6. autoamtic boosting trailer valve according to claim 1, it is characterized in that: the upper end outer wall of described first piston, middle part are provided with seal ring, form sliding sealing between the inboard end wall of described seal ring and middle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725501 CN203020301U (en) | 2012-12-12 | 2012-12-12 | Automatic assistance trailer valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725501 CN203020301U (en) | 2012-12-12 | 2012-12-12 | Automatic assistance trailer valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203020301U true CN203020301U (en) | 2013-06-26 |
Family
ID=48644304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220725501 Expired - Fee Related CN203020301U (en) | 2012-12-12 | 2012-12-12 | Automatic assistance trailer valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203020301U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010202A (en) * | 2012-12-12 | 2013-04-03 | 陈达 | Trailer valve capable of automatically boosting |
| CN105196182A (en) * | 2015-09-21 | 2015-12-30 | 蓝思科技（长沙）有限公司 | Liquid delivery device and device for adding grinding liquid into grinding disc |
-
2012
- 2012-12-12 CN CN 201220725501 patent/CN203020301U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010202A (en) * | 2012-12-12 | 2013-04-03 | 陈达 | Trailer valve capable of automatically boosting |
| CN105196182A (en) * | 2015-09-21 | 2015-12-30 | 蓝思科技（长沙）有限公司 | Liquid delivery device and device for adding grinding liquid into grinding disc |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203020301U (en) | Automatic assistance trailer valve | |
| CN102336187B (en) | Hand brake valve of rubber-tire vehicle | |
| CN102562852B (en) | Clutch slave cylinder for hybrid electric vehicles | |
| CN203766745U (en) | Pilot-operated type electromagnetic air pressure adjusting valve | |
| CN2883109Y (en) | Pneumatic booster | |
| CN203020303U (en) | Automatic assistance trailer valve | |
| CN203318399U (en) | Automatic power assistance trailer valve | |
| CN101870289B (en) | Flexible brake power-assisted relay valve | |
| CN204399159U (en) | A kind of relay valve of new valve structure | |
| CN103010202A (en) | Trailer valve capable of automatically boosting | |
| CN203306000U (en) | Automatic assistant trailer valve | |
| CN107606243A (en) | A kind of safety attachment control valve for road transport dangerous cargo tank vehicle | |
| CN203306001U (en) | Improved automatic power-assisting trailer valve | |
| CN203888778U (en) | Novel hand control valve | |
| CN202301973U (en) | Manual brake valve | |
| CN201941758U (en) | Pressure-regulating three-way valve, assisted relay valve and brake pipeline system thereof | |
| CN102616230B (en) | Upper cover of air-brake brake valve | |
| CN207485757U (en) | A kind of pneumohydraulic pressure-cylinder | |
| CN201703371U (en) | Automatic variable-pressure brake valve | |
| CN202169938U (en) | Pressure-adjusting three-way valve and boosting relay valve composed of pressure-adjusting three-way valve and relay valve | |
| CN203157984U (en) | Differential motion relay valve | |
| CN205131218U (en) | Electric automatic parking ware | |
| CN204688106U (en) | A kind of secondary pressurized brake control valve | |
| CN208559310U (en) | Novel transformation triple valve and its power-assisted relay valve constituted with relay valve | |
| CN204399160U (en) | Three grades of transformation flexible brake power-assisted relay valves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20131212 |