CN216886637U - Brake fluid filling and exhausting device and automobile - Google Patents
Brake fluid filling and exhausting device and automobile Download PDFInfo
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- CN216886637U CN216886637U CN202220174279.5U CN202220174279U CN216886637U CN 216886637 U CN216886637 U CN 216886637U CN 202220174279 U CN202220174279 U CN 202220174279U CN 216886637 U CN216886637 U CN 216886637U
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- master cylinder
- pressure controller
- brake fluid
- vacuum booster
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Abstract
The utility model provides a brake fluid filling and exhausting device and an automobile, wherein the brake fluid filling and exhausting device comprises: the brake master cylinder assembly comprises a plurality of brake slave cylinders, a brake pressure controller and a vacuum booster; the vacuum booster with the brake master cylinder assembly is communicated with the brake pressure controller through an oil outlet pipe, and a brake fluid flow channel communicated with each brake cylinder and a branch flow channel communicated with the brake fluid flow channel are arranged in the brake pressure controller; and the air release valve is communicated with an outlet of the branch flow passage on the brake pressure controller.
Description
Technical Field
The utility model relates to the field of chassis braking of vehicles, in particular to a brake fluid filling and exhausting device and an automobile.
Background
With the development of electronic technology, modern vehicle brake control systems integrate a plurality of functions such as ABS, EDB, ASR, ESP and the like, can intervene in output torque and braking force instantly under various dangerous driving conditions, ensure normal driving or braking of the vehicle, and greatly improve the controllability and stability of the vehicle.
In the process of vehicle development, when the brake system is calibrated and tested and is maintained and repaired in the using process, parts of the brake system can be frequently replaced or repaired, gas can possibly enter the brake system during each repair or replacement operation, and bubbles mixed in the brake system can cause brake fatigue and lead to great hidden danger for service braking. The general method for processing the air bubbles of the brake system is to perform air exhaust operation on the brake system, if the air bubbles are arranged at the rear end of a brake oil pipe, the operation is relatively easy, but if a brake master cylinder is used for maintenance and replacement, because an air exhaust mechanism is not arranged between the brake master cylinder and a wheel brake cylinder, if the air bubbles at the front end of the brake system need to be exhausted, all brake fluid in the system needs to be exhausted to eliminate the air bubbles, the time consumption is long, and at least two persons are needed to cooperate, so that the time and the labor are wasted.
Disclosure of Invention
The utility model provides a brake fluid filling and exhausting device and an automobile, and aims to solve the problem that a brake system is difficult to exhaust after a brake master cylinder of the automobile in the prior art is replaced.
The utility model provides a brake fluid filling and exhausting device, which comprises:
the brake master cylinder assembly comprises a plurality of brake slave cylinders, a brake pressure controller and a vacuum booster; the vacuum booster with the brake master cylinder assembly is communicated with the brake pressure controller through an oil outlet pipe, and a brake fluid flow channel communicated with each brake cylinder and a branch flow channel communicated with the brake fluid flow channel are arranged in the brake pressure controller;
and the air release valve is communicated with an outlet of the branch flow passage on the brake pressure controller.
Preferably, the vacuum booster band master cylinder assembly includes: including vacuum booster, brake master cylinder and brake fluid kettle, be provided with the hydraulic pressure cavity in the brake master cylinder, vacuum booster connect in the brake master cylinder, the brake fluid kettle set up in on the brake master cylinder, brake pedal connect in vacuum booster, the brake master cylinder passes through go out oil pipe communicate in brake pressure controller, brake pressure controller further communicates in each brake wheel cylinder of vehicle through brake oil pipe.
Preferably, an outlet of the branch flow passage is provided to an upper surface of the brake pressure controller.
Preferably, the purge valve is mounted on the brake pressure controller.
Preferably, the air release valve is disposed at a position lower than a position of the master cylinder in a vehicle height direction.
The embodiment of the utility model also provides an automobile which comprises the brake fluid filling and exhausting device.
Drawings
FIG. 1 is a structural view of the brake fluid charging and discharging apparatus in this embodiment, not assembled with the vacuum booster band brake master cylinder assembly;
FIG. 2 is a view showing an installation structure of the brake fluid charging and discharging device and the vacuum booster with brake master cylinder assembly in this embodiment;
fig. 3 is a schematic view of a whole vehicle mounting structure of the brake fluid charging and discharging device in the embodiment;
fig. 4 is a schematic view of a whole vehicle mounting structure of the brake fluid charging and discharging device in the embodiment;
in the figure, 1, 2-oil outlet pipe; 3-brake pressure controller; 4,5,6, 7-brake oil pipe; 8,9,10, 11-brake cylinder; 81, 91, 101, 111-brake cylinder release valve; 31. 32-a deflation valve; 12-brake fluid pot; 13-a master brake cylinder; 14-brake pedal.
Detailed Description
Referring to fig. 1 to 4, the embodiment of the present invention provides a brake fluid filling and exhausting device, a plurality of brake cylinders 8,9,10,11, a brake pressure controller 3 and a vacuum booster band brake master cylinder assembly; the vacuum booster with the brake master cylinder assembly is communicated with the brake pressure controller 3 through oil outlet pipes 1 and 2, and a brake fluid channel communicated with each brake cylinder 8,9,10 and 11 and a branch fluid channel communicated with the brake fluid channel are arranged in the brake pressure controller 3; and air release valves 31,32 communicated with the outlets of the branch flow passages on the brake pressure controller 3.
Specifically, referring to fig. 3 and 4, the vacuum booster band master cylinder assembly includes: including vacuum booster, brake master cylinder 13 and brake fluid pot 12, be provided with hydraulic pressure cavity in the brake master cylinder 13, vacuum booster connect in brake master cylinder 13, brake fluid pot 12 set up in brake master cylinder 13 is last, brake pedal 14 connect in vacuum booster, brake master cylinder 13 is through going out oil pipe 1, and communicate in brake pressure controller 3, brake pressure controller 3 further communicates in each brake branch pump 8,9,10,11 of vehicle through brake oil pipe 4,5,6, 7.
In normal operation, the master cylinder 13 has two independent hydraulic chambers, and the generated hydraulic pressure is respectively input to the brake pressure controller 3 through the oil outlet pipes 1 and 2, and then is redistributed to the four brake cylinders 8,9,10 and 11 by the brake pressure controller 3 to realize wheel braking. At this time, the set purge valves 31,32 are closed, so that the brake pressure can be normally transmitted to the brake pressure controller 3, and a normal braking function is realized.
In this embodiment, as shown in fig. 3, both the purge valves 31 and 32 may be installed on the brake pressure controller 3 by a screw connection, and the purge valves 31 and 32 communicate with the outlets of the branch flow passages on the upper surface of the brake pressure controller 3, so that gas or liquid may flow to the positions of the purge valves 31 and 32 through the branch flow passages, and gas discharge and liquid discharge may be performed after the purge valves 31 and 32 are opened.
In the brake fluid filling and exhausting device in this embodiment, when the release valves 31 and 32 are in the tightened state, the valves of the release valves 31 and 32 are closed, and the exhaust holes of the release valves 31 and 32 do not leak gas or liquid. When the release valves 31,32 are unscrewed, the brake fluid or air bubbles in the oil outlet pipes 1,2 are discharged from the small holes at the top ends of the release valves 31,32 through the brake pressure controller 3.
In the specific implementation, when the parts of the vehicle to be repaired are the brake pressure controller 3, the brake oil pipes 4,5,6 and 7, the brake cylinders 8,9,10 and 11, and the like, the air mixed in the brake system can be exhausted only through the brake cylinder air relief valves 81, 91, 101 and 111 in the original design.
When the vehicle maintenance and replacement part is the vacuum booster belt brake master cylinder assembly, after the replacement and installation of the vacuum booster belt brake master cylinder assembly are completed, at the moment, a part of gas exists in the oil outlet pipe 1, and a part of brake fluid remains in the internal brake fluid channel and the branch fluid channel of the brake pressure controller 3; at this time, first, a sufficient amount of brake fluid is added to the brake fluid pot 12, and then the air release valve 31 is unscrewed with a wrench, and at this time, the brake fluid in the oil outlet pipe 1 flows out from the small hole of the air release valve 31 under the action of gravity pressure difference. When the small hole on the air release valve 31 is discharged with air bubbles and flows out as uniform brake fluid, the gas in the oil outlet pipe 1 is removed.
Similarly, the air release valve 32 is unscrewed by a wrench, and at this time, the brake fluid in the oil outlet pipe 2 flows out from the small hole on the air release valve 32 under the action of gravity pressure difference, and when the small hole on the air release valve 32 is exhausted with bubbles and flows out in a uniform brake fluid state, it indicates that the gas in the oil outlet pipe 2 is completely removed, and at this time, it indicates that the air mixed in the brake system is completely removed.
By adopting the brake fluid filling and exhausting device in the embodiment of the utility model, after the brake master cylinder 13 of the vehicle is maintained and replaced, the exhaust of the brake system only needs to sequentially unscrew the air release valves 31 and 32 on the brake pressure controller 3, the brake pedal 14 does not need to be stepped, the brake fluid can automatically flow down due to the high-low pressure difference of the pipeline, the whole operation can be easily completed by one person, the operation is simple, and the working hour and the cost are saved.
As shown in fig. 4, when the brake pressure controller of the vehicle is disposed at a position inside the cabin that is difficult for a person to operate, the purge valves 31,32 can be led out to a position that is convenient for operation by using the pipes, respectively, but it is to be noted that the positions at which the purge valves 31,32 are disposed are not higher than the position of the master cylinder 13 (i.e., the positions at which the purge valves 31,32 are disposed are lower than the position of the master cylinder 13 in the vehicle height direction), otherwise the brake fluid cannot be automatically discharged due to the pressure difference at the time of exhaust.
Through the brake fluid filling and exhausting device of the embodiment, only a branch flow passage communicated with the brake fluid flow passage in the brake pressure controller 3 needs to be added on the basis of the original structure, and then the branch flow passage is communicated with the outlet of the branch flow passage through arranging the air release valves 31 and 32. After the vacuum booster with the brake master cylinder assembly is replaced, brake fluid is added into the brake fluid pot 12 of the vacuum booster with the brake master cylinder assembly, then flows into the brake fluid flow channel through the oil outlet pipes 1 and 2, a part of the brake fluid flows out to the exhaust valves 31 and 32 through the branch flow channels, and when the small holes in the exhaust valves 31 and 32 are exhausted with bubbles and flow out uniformly, the fact that gas in the oil outlet pipes 1 and 2 is exhausted is shown. The vacuum booster with the brake master cylinder assembly can be replaced and the filling and exhausting operation can be conveniently carried out, the filling and exhausting process can be completely finished by one person, the operation is convenient, and the adjustment efficiency of a brake system is improved. In addition, the improvement cost of the embodiment is low, and the added parts are small.
Claims (6)
1. A brake fluid filling and exhausting device is characterized by comprising:
the brake system comprises a plurality of brake cylinders (8, 9,10 and 11), a brake pressure controller (3) and a vacuum booster band brake master cylinder assembly; the vacuum booster with the brake master cylinder assembly is communicated with the brake pressure controller (3) through oil outlet pipes (1, 2), and a brake fluid channel communicated with each brake cylinder (8, 9,10, 11) and a branch fluid channel communicated with the brake fluid channel are arranged in the brake pressure controller (3);
and air release valves (31, 32) which are communicated with the outlets of the branch flow passages on the brake pressure controller (3).
2. The brake fluid charging and exhausting device according to claim 1, wherein the vacuum booster band brake master cylinder assembly includes: including vacuum booster, brake master cylinder (13) and brake fluid pot (12), be provided with hydraulic pressure cavity in brake master cylinder (13), vacuum booster connect in brake master cylinder (13), brake fluid pot (12) set up in on brake master cylinder (13), brake pedal (14) connect in vacuum booster, brake master cylinder (13) pass through go out oil pipe (1, 2) communicate in brake pressure controller (3), brake pressure controller (3) further communicate in each braking branch pump (8, 9,10, 11) of vehicle through brake oil pipe (4, 5,6, 7).
3. The brake fluid charging and discharging device according to claim 1, wherein an outlet of the branch flow passage is provided to an upper surface of the brake pressure controller (3).
4. The brake fluid charging and exhausting device according to claim 1, wherein the purge valve (31, 32) is mounted on the brake pressure controller (3).
5. The brake fluid charging and exhausting device according to claim 2, wherein the bleed valves (31, 32) are disposed at a position lower than a position of the master cylinder (13) in a vehicle height direction.
6. An automobile characterized by comprising the brake fluid charging and exhausting device according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220174279.5U CN216886637U (en) | 2022-01-23 | 2022-01-23 | Brake fluid filling and exhausting device and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220174279.5U CN216886637U (en) | 2022-01-23 | 2022-01-23 | Brake fluid filling and exhausting device and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216886637U true CN216886637U (en) | 2022-07-05 |
Family
ID=82181371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220174279.5U Active CN216886637U (en) | 2022-01-23 | 2022-01-23 | Brake fluid filling and exhausting device and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216886637U (en) |
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2022
- 2022-01-23 CN CN202220174279.5U patent/CN216886637U/en active Active
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