CN217682955U

CN217682955U - Hydraulic control assembly for automobile brake

Info

Publication number: CN217682955U
Application number: CN202221750012.2U
Authority: CN
Inventors: 陈烽; 吴�荣; 郭佳海
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2022-10-28
Anticipated expiration: 2032-07-06

Abstract

The utility model discloses a hydraulic control component for an automobile brake, belonging to the technical field of automobile accessories; the method comprises the following steps: the brake master cylinder, the brake wheel cylinder, the batch oil tank is arranged in the brake master cylinder top, be equipped with the baffle in the batch oil tank, the batch oil tank passes through the baffle and forms two independent oil tanks, inlet port and compensation hole have been seted up at the brake master cylinder top, inlet port and compensation hole are totally two sets of, two independent oil tanks in the batch oil tank all communicate with the brake master cylinder through inlet port and compensation hole, the brake master cylinder tip is equipped with the mount pad, the mounting hole has been seted up on the mount pad, all be equipped with the compensation piece in preceding working chamber and the back working chamber, utilize the compensation piece compression rubber piston, improve sealed effect, even rubber piston edge wearing and tearing, still can provide pressure for preceding working chamber, improve the security, through setting up the protector, after preventing to loosen the brake, excessive brake fluid backward flow, cause the burden for batch oil tank and brake master cylinder, high durability and convenient use, safety and reliability.

Description

Hydraulic control assembly for automobile brake

Technical Field

The utility model relates to a hydraulic control subassembly for automobile brake belongs to auto-parts technical field.

Background

The brake of car is the key device of assurance car safety traffic, the brake is hydraulic drive generally, after stepping on brake pedal, the brake master cylinder extrudes the brake fluid of oil storage tank, flow to the wheel cylinder through the oil pipe, the piston promotion brake block in the wheel cylinder brakes, mainly be the brake master cylinder among the current hydraulic control subassembly, utilize rubber piston to go into the oil pipe with brake fluid pressure in the brake master cylinder, rubber piston edge and the easy wearing and tearing of brake master cylinder contact position after long-time the use, make the leakproofness variation, lead to preceding working chamber oil leak, not only lead to back working chamber stroke grow, and preceding working chamber pressure lacks.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of hydraulic control subassembly for automobile brake can solve long-time back rubber piston edge of using and brake master cylinder contact position wearing and tearing easily for the leakproofness variation leads to preceding working chamber oil leak, not only leads to back working chamber stroke grow, and the problem of preceding working chamber pressure disappearance.

The utility model discloses a solve above-mentioned problem, the technical scheme who proposes is: a hydraulic control assembly for an automotive brake comprising: the brake master cylinder, the brake slave cylinder and the oil storage tank are arranged at the top of the brake master cylinder, the oil storage tank is internally provided with a baffle plate and forms two independent oil tanks through the baffle plate, the top of the brake master cylinder is provided with an oil inlet hole and a compensation hole, the oil inlet hole and the compensation hole are divided into two groups, the two independent oil tanks in the oil storage tank are communicated with the brake master cylinder through the oil inlet hole and the compensation hole, the end part of the brake master cylinder is provided with a mounting seat, the mounting seat is provided with a mounting hole, the brake master cylinder is internally provided with a front piston main body and a rear piston main body, the rear piston main body is positioned at one end close to the mounting seat, rubber pistons are arranged at two ends of the rear piston main body and the front piston main body, the rubber pistons are attached to the inner wall of the driving main cylinder, the rubber piston at the end part of the front piston main body is positioned at the edge of the compensation hole, the oil inlet hole is closed through the rubber piston, the rubber piston at the end part of the rear piston main body is positioned at the edge of the other compensation hole, the oil inlet hole is closed by a rubber piston, the front piston main body is provided with a limit rod, a return spring is sleeved on the limit rod, one end of the return spring is pressed against the side wall of the brake main cylinder, the other end of the return spring is pressed against the rubber piston, the front piston body is provided with a buffer sleeve, the rear piston body is provided with a transmission rod, the transmission rod is inserted at the edge of the buffer sleeve, the other return spring is sleeved on the transmission rod, two ends of the reset spring are respectively pressed on the rubber pistons arranged at two sides, the side wall of the brake main cylinder is provided with bypass holes, two groups of the bypass holes respectively correspond to the front piston main body and the rear piston main body, the brake cylinder is communicated with the brake main cylinder through an oil outlet pipe, the brake master cylinder is internally provided with compensation blocks, the compensation blocks are of annular structures with gradually reduced inner diameters, one ends of the compensation blocks with larger inner diameters are attached to the edges of compensation holes, and the compensation blocks are arranged at the positions of the two groups of compensation holes;

a push rod is arranged in the rubber piston close to the mounting seat, and a brake clearance groove is arranged between the rubber piston and the push rod;

the oil outlet pipe is provided with a protector, the protection plate is arranged in the protector, the protection plate is of an elastic structure, the end part of the protection plate extends into the oil outlet pipe at the outlet end of the protector, the end part of the protection plate is obliquely arranged, and the two groups of protection plates are symmetrically arranged;

a gap is reserved between the buffer sleeve and the transmission rod, and the distance between the end part of the transmission rod and the bottom of the buffer is greater than the length of the limiting rod;

the inner diameter of the smaller end of the compensation block is smaller than the diameter of the rubber piston;

the brake master cylinder is connected with the four brake slave cylinders through the oil outlet pipe, the bypass hole at the front end is connected with the two brake slave cylinders, and the bypass hole at the rear end is connected with the other two brake slave cylinders.

The utility model has the advantages that:

1. the front working cavity and the rear working cavity are internally provided with the compensation blocks, the rubber piston is compressed by the compensation blocks, the sealing effect is improved, pressure can be still provided for the front working cavity even if the edge of the rubber piston is abraded, and the safety is improved;

2. by arranging the protector, the excessive brake fluid is prevented from flowing back after the brake is released, so that the burden is caused to the oil storage tank and the brake master cylinder;

3. convenient to use, safe and reliable.

Drawings

Fig. 1 is a front view of the hydraulic control assembly for the automobile brake of the present invention.

Fig. 2 is the structural schematic diagram of the hydraulic control assembly brake master cylinder for the automobile brake of the present invention.

Fig. 3 is the utility model relates to a hydraulic control assembly protector's for automobile brake structural schematic.

1. An oil storage tank; 2. a master cylinder; 3. a mounting base; 4. a push rod; 5. a bypass hole; 6. an oil outlet pipe; 7. a brake cylinder; 8. a protector; 9. a baffle plate; 10. a compensation hole; 11. an oil inlet hole; 12. mounting holes; 13. a brake clearance groove; 14. a rear piston body; 15. a rubber piston; 16. a transmission rod; 17. a buffer sleeve; 18. a front piston body; 19. a limiting rod; 20. a compensation block; 21. a return spring; 22. and (4) protecting the sheet.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

It should be noted that as used in the following description, the terms "front", "back", "left", "right", "upper" and "lower" refer to directions in fig. 1, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

According to the illustrations of FIGS. 1-3: the utility model provides a hydraulic control subassembly for automobile brake includes: the brake master cylinder 2, the brake slave cylinder 7 and the oil storage tank 1, wherein the oil storage tank 1 is arranged at the top of the brake master cylinder 2, a baffle plate 9 is arranged in the oil storage tank 1, the oil storage tank 1 forms two independent oil tanks through the baffle plate 9, the top of the brake master cylinder 2 is provided with an oil inlet hole 11 and a compensation hole 10, the oil inlet hole 11 and the compensation hole 10 are divided into two groups, the two independent oil tanks in the oil storage tank 1 are communicated with the brake master cylinder 2 through the oil inlet hole 11 and the compensation hole 10, the end part of the brake master cylinder 2 is provided with a mounting seat 3, the mounting seat 3 is provided with a mounting hole 12, the brake master cylinder 2 is internally provided with a front piston main body 18 and a rear piston main body 14, the rear piston main body is arranged at one end close to the mounting seat 3, rubber pistons 15 are arranged at two ends of the rear piston main body 14 and the front piston main body 18, the rubber pistons 15 are attached to the inner wall of the master cylinder, the rubber pistons 15 at the end part of the front piston main body 18 are arranged at the edge of the compensation hole 10, the oil inlet hole 11 is closed through the rubber pistons 15, the rubber piston 15 at the end of the rear piston body 14 is located at the edge of the other compensation hole 10, the oil inlet hole 11 is closed by the rubber piston 15, the front piston body 18 is provided with a limit rod 19, a return spring 21 is sleeved on the limit rod 19, one end of the return spring 21 is pressed against the side wall of the brake main cylinder 2, the other end of the return spring 21 is pressed against the rubber piston 15, the front piston body 18 is provided with a buffer sleeve 17, the rear piston body 14 is provided with a transmission rod 16, the transmission rod 16 is inserted at the edge of the buffer sleeve 17, the other return spring 21 is sleeved on the transmission rod 16, two ends of the return spring 21 are respectively pressed against the rubber pistons 15 at two sides, the side wall of the brake main cylinder 2 is provided with bypass holes 5, two sets of the bypass holes 5 respectively correspond to the front piston body 18 and the rear piston body 14, and the brake sub-pump 7 is communicated with the brake main cylinder 2 through an oil outlet pipe 6, the brake master cylinder 2 is internally provided with a compensation block 20, the compensation block 20 is of an annular structure with gradually reduced inner diameter, one end of the compensation block 20 with larger inner diameter is attached to the edge of the compensation hole 10, and the compensation blocks 20 are arranged at the two groups of compensation holes 10;

a push rod 4 is arranged in the rubber piston 15 close to the mounting seat 3, and a brake clearance groove 13 is arranged between the rubber piston 15 and the push rod 4;

the oil outlet pipe 6 is provided with a protector 8, the protection plate 22 is arranged in the protector 8, the protection plate 22 is of an elastic structure, the end part of the protection plate 22 extends into the oil outlet pipe 6 at the outlet end of the protector 8, the end part of the protection plate 22 is obliquely arranged, and the two groups of protection plates 22 are symmetrically arranged;

a gap is reserved between the buffer sleeve 17 and the transmission rod 16, and the distance between the end part of the transmission rod 16 and the bottom of the buffer is greater than the length of the limiting rod 19;

the inner diameter of the smaller end of the compensating block 20 is smaller than the diameter of the rubber piston 15;

the brake master cylinder 2 is connected with four brake cylinders 7 through an oil outlet pipe 6, bypass holes 5 at the front end are connected with the two brake cylinders 7, and the bypass holes 5 at the rear end are connected with the other two brake cylinders 7.

The principle of the utility model is as follows: when the brake pad is used, the push rod 4 is connected with the vacuum booster and the brake pedal, after braking, the push rod 4 pushes the rear piston main body 14 to move, when the rubber piston 15 on the rear piston main body 14 moves to the left side of the compensation hole 10, a sealing state is formed between the rear piston main body 14 and the front piston main body 18, brake fluid is discharged from the bypass hole 5 at the rear end, enters the brake cylinder 7 through the protector 8 and the oil outlet pipe 6, and pushes the brake pad to brake, when oil leakage occurs due to abrasion of the edge of the rubber piston 15, the rubber piston 15 is compressed and deformed under the action of the compensation block 20, influences caused by edge abrasion are reduced, the sealing effect between the rubber piston 15 and the compensation block 20 is improved, working pressure still exists in the working cavity, safety is improved, when the rubber piston 15 is reset, the brake fluid in the oil outlet pipe 6 flows to the brake master cylinder 2, the brake fluid pushes the end portions of the brake fluid 22 to close together at the moment, gaps of the channels are reduced, a large amount of brake fluid is prevented from flowing into the master cylinder and the brake tank 1, and accordingly, the purpose of compressing the rubber piston 15 by utilizing the compensation block 20 to compress the rubber piston 15, sealing effect is improved, even if the brake fluid is achieved, the brake fluid can still provide excessive brake pressure for the brake chamber, and the brake tank 2, thereby preventing the brake tank from being overflowed, and the brake.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. A hydraulic control assembly for an automotive brake, characterized in that: the brake cylinder comprises a brake main cylinder (2), a brake slave cylinder (7), an oil storage tank (1), the oil storage tank (1) is arranged at the top of the brake main cylinder (2), a baffle (9) is arranged in the oil storage tank (1), the oil storage tank (1) forms two independent oil tanks through the baffle (9), an oil inlet hole (11) and a compensation hole (10) are formed in the top of the brake main cylinder (2), the oil inlet hole (11) and the compensation hole (10) are divided into two groups, the two independent oil tanks in the oil storage tank (1) are communicated with the brake main cylinder (2) through the oil inlet hole (11) and the compensation hole (10), a mounting seat (3) is arranged at the end part of the brake main cylinder (2), a mounting hole (12) is formed in the mounting seat (3), a front piston main body (18) and a rear piston main body (14) are arranged in the brake main cylinder (2), the rear piston main body is arranged at one end part close to the mounting seat (3), rubber piston main body (14) and two ends of the rear piston main body (14) and the front piston main body (18) are respectively provided with a rubber piston (15), a rubber piston main body (15) and a rubber piston (15) is arranged at the inner wall of a rubber piston main body (15) fitting driving main wall, the rubber piston body (15) is arranged at the end part of the compensation hole (15), the other end part of the rubber piston main cylinder (10), the compensation hole (15) and the rear piston body (10), and the oil inlet hole (11) is closed through a rubber piston (15), the front piston main body (18) is provided with a limiting rod (19), a reset spring (21) is sleeved on the limiting rod (19), one end of the reset spring (21) is pressed and arranged on the side wall of the main brake cylinder (2), the other end of the reset spring (21) is pressed and arranged on the rubber piston (15), the front piston main body (18) is provided with a buffer sleeve (17), the rear piston main body (14) is provided with a transmission rod (16), the transmission rod (16) is inserted at the edge of the buffer sleeve (17), the other reset spring (21) is sleeved on the transmission rod (16), two ends of the reset spring (21) are respectively pressed and arranged on the rubber pistons (15) at two sides, the side bypass holes (5) are formed in the side wall of the main brake cylinder (2), the two sets of the bypass holes (5) respectively correspond to the front piston main body (18) and the rear piston main body (14), the sub-brake pump (7) is communicated with the main brake cylinder (2) through an oil outlet pipe (6), a compensation block (20) is arranged in the main brake cylinder (2), and the compensation block (20) is provided with a compensation structure with an inner diameter gradually reduced and an inner diameter compensation structure (10).

2. The hydraulic control module for an automobile brake as claimed in claim 1, wherein: a push rod (4) is arranged in the rubber piston (15) close to the mounting seat (3), and a brake clearance groove (13) is arranged between the rubber piston (15) and the push rod (4).

3. The hydraulic control module for an automobile brake as claimed in claim 1, wherein: be equipped with protector (8) on play oil pipe (6), protector (8) are arranged in protection sheet (22), and protection sheet (22) are the elastic construction, and in protection sheet (22) tip extended to play oil pipe (6) of protector (8) exit end, and protection sheet (22) tip slope sets up, and is two sets of protection sheet (22) symmetry sets up.

4. The hydraulic control module for an automotive brake as claimed in claim 1, characterized in that: a gap is reserved between the buffer sleeve (17) and the transmission rod (16), and the distance between the end of the transmission rod (16) and the bottom of the buffer is larger than the length of the limiting rod (19).

5. The hydraulic control module for an automotive brake as claimed in claim 1, characterized in that: the inner diameter of the smaller end of the compensation block (20) is smaller than the diameter of the rubber piston (15).

6. The hydraulic control module for an automotive brake as claimed in claim 1, characterized in that: the brake master cylinder (2) is connected with four brake slave cylinders (7) through an oil outlet pipe (6), a bypass hole (5) in the front end is connected with the two brake slave cylinders (7), and a bypass hole (5) in the rear end is connected with the other two brake slave cylinders (7).