Brake wheel cylinder assembly with adjustment valve

Abstract

The utility model relates to brake wheel cylinder technical field proposes a kind of brake wheel cylinder assembly with adjusting valve, including cylinder body, two groups of sliding grooves are set up on the cylinder body, each group of sliding groove is slidably installed with piston, two groups of communication holes are set up on the cylinder body with two groups of sliding grooves intercommunication. The utility model makes brake fluid into sliding groove by liquid inlet groove, under the pressure of brake fluid, limit spring is contracted under the force of limit ring being lifted, so that a passageway is formed between valve seat and limit ring, brake fluid enters sliding groove by this passageway and drives piston to move, piston moves again and drives valve seat to move, so that the delivery passageway of brake fluid is completely opened, under the condition of light stepping brake pedal, the adjustment of brake wheel cylinder becomes better meticulous, avoid the situation that rear vehicle rear-end collision is caused by vehicle sudden heavy braking when light stepping pedal.

Description

Technical Field

[0001] This utility model relates to the field of brake wheel cylinder technology, specifically a brake wheel cylinder assembly with an adjusting valve. Background Technology

[0002] The brake wheel cylinder is installed inside the wheel disc of a car and is used for braking. It is an important device to ensure safe braking of a car. The common hydraulic brake wheel cylinder is usually used in cars and generally includes a cylinder body, piston, spring nozzle, etc.

[0003] However, current car brake wheel cylinders use a channel to deliver brake fluid to adjust the position of the piston inside the cylinder. This causes the piston inside the brake wheel cylinder to move a large distance when the brake pedal is lightly pressed. In normal following or congested traffic, this can cause the vehicle to brake suddenly and hard, making it impossible for the driver of the following vehicle to anticipate and react, which greatly increases the probability of a serious rear-end collision. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a brake wheel cylinder assembly with an adjusting valve, which solves the problem of rear-end collisions caused by sudden hard braking of the vehicle when the pedal is lightly pressed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A brake wheel cylinder assembly with an adjusting valve includes a cylinder body, two sets of sliding grooves are provided on the cylinder body, a piston is slidably mounted on each set of sliding grooves, two sets of connecting holes are provided on the cylinder body that communicate with the two sets of sliding grooves, a liquid inlet hole is provided on the cylinder body that communicates with the two sets of sliding grooves, and a liquid inlet groove is provided on the cylinder body that communicates with the liquid inlet hole. The piston is equipped with a regulating device for adjusting the pressure inside the cylinder.

[0006] Preferably, the adjusting device includes a valve seat threaded onto the piston, a limit spring sleeved on the valve seat, a limit ring slidably mounted on the valve seat for use with the limit spring, and a shaft wire retaining ring rotatably mounted on the valve seat for use with the limit ring.

[0007] Preferably, the adjusting device further includes a return spring fixedly mounted on the valve seat, a valve core slidably mounted on the valve seat, and an adjusting spring slidably connected to the valve seat and sleeved on the valve core.

[0008] Preferably, the adjusting device further includes two sets of positioning pins slidably mounted on the valve seat, and a positioning spring is installed between the two sets of positioning pins.

[0009] Preferably, the cylinder body has openings that communicate with two sets of sliding grooves, and the cylinder body has connecting grooves that communicate with the openings.

[0010] Preferably, a leather ring is fitted onto the piston, and a dust cover is fitted onto the piston.

[0011] Preferably, a fixed seat is inserted and installed on the piston, and an adjusting wheel is rotatably installed on the fixed seat.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention, through the setting of the adjustment device, allows brake fluid to enter the sliding groove through the inlet groove. Under the pressure of the brake fluid, the limiting ring is lifted, causing the limiting spring to contract under force, thus forming a channel between the valve seat and the limiting ring. The brake fluid enters the sliding groove through this channel, driving the piston to move. After the piston moves, it drives the valve seat to move, thus completely opening the brake fluid delivery channel. This allows for more precise adjustment of the brake wheel cylinder when the brake pedal is lightly pressed, avoiding the situation where the vehicle suddenly brakes hard when the pedal is lightly pressed, causing a rear-end collision. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall internal structure of the brake wheel cylinder body of this utility model; Figure 3 This is a schematic diagram of the overall internal structure of the piston of this utility model; Figure 4 This is a schematic diagram of the overall structure of the adjustment device of this utility model.

[0014] In the diagram: 1. Cylinder body; 2. Piston; 11. Sliding groove; 12. Connecting hole; 13. Liquid inlet hole; 14. Liquid inlet groove; 3. Adjusting device; 31. Valve seat; 32. Limit spring; 33. Limit ring; 34. Shaft wire retaining ring; 35. Return spring; 36. Valve core; 37. Adjusting spring; 38. Positioning pin; 39. Positioning spring; 4. Opening; 41. Connecting groove; 5. Leather ring; 51. Dust cover; 6. Fixed seat; 61. Adjusting wheel. Detailed Implementation

[0015] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0016] Reference Figures 1-4This embodiment proposes a brake wheel cylinder assembly with an adjusting valve, including a cylinder body 1. The cylinder body 1 has two sets of sliding grooves 11, and a piston 2 is slidably mounted on each set of sliding grooves 11. The cylinder body 1 has two sets of connecting holes 12 that communicate with the two sets of sliding grooves 11. The cylinder body 1 has a fluid inlet hole 13 that communicates with the two sets of sliding grooves 11. The cylinder body 1 has a fluid inlet groove 14 that communicates with the fluid inlet hole 13. Brake fluid can be delivered into the brake wheel cylinder through the fluid inlet groove 14 and the fluid inlet hole 13. An adjusting device 3 for adjusting the internal pressure of the cylinder body 1 is installed on the piston 2.

[0017] The adjusting device 3 includes a valve seat 31 threadedly connected to the piston 2. A limit spring 32 is fitted on the valve seat 31 to allow the limit ring 33 to quickly return to its original position. A limit ring 33, which works in conjunction with the limit spring 32, is slidably mounted on the valve seat 31. A shaft wire retainer 34, which works in conjunction with the limit ring 33, is rotatably mounted on the valve seat 31 to limit the position of the limit ring 33. The adjusting device 3 also includes a return spring 35 fixedly mounted on the valve seat 31 to allow the valve seat 31 to quickly return to its original position. A valve core 36 is slidably mounted on the valve seat 31. An adjusting spring 37, which is slidably connected to the valve seat 31, is fitted on the valve core 36 to allow the valve core 36 to quickly return to its original position. The adjusting device 3 also includes two sets of positioning pins 38 slidably mounted on the valve seat 31. A positioning spring 39 is installed between the two sets of positioning pins 38 to adjust the valve core 36. When the valve seat 31 is threadedly connected to the piston 2, the positioning pin 38 is inserted into the piston 2 through the positioning spring 39, which can complete the quick installation of the valve seat 31 and the piston 2. When the pedal is lightly pressed to make the car brake, the brake fluid enters the inlet hole 13 through the inlet groove 14 and then enters the sliding groove 11 of the cylinder 1. Under the pressure of the brake fluid, the limiting ring 33 is pushed up, causing the limiting spring 32 to be compressed, so that a channel is formed between the valve seat 31 and the limiting ring 33. The brake fluid enters the sliding groove 11 through this channel and drives the piston 2 to move. After the piston 2 moves, it drives the valve seat 31 to move, so that the brake fluid delivery channel is fully opened. When the brake pedal is lightly pressed, the adjustment of the brake wheel cylinder becomes more precise, avoiding the situation where the vehicle suddenly brakes hard when the pedal is lightly pressed, causing a rear-end collision.

[0018] The cylinder body 1 has an opening 4 that communicates with two sets of sliding grooves 11. The cylinder body 1 also has a connecting groove 41 that communicates with the opening 4. An air valve is installed on the connecting groove 41 to discharge air from the cylinder body 1. A leather ring 5 is fitted on the piston 2 to form a sealed space inside the sliding groove 11. A dust cover 51 is fitted on the piston 2 to prevent water or dust from entering the piston 2 and affecting its stability. A fixed seat 6 is inserted and installed on the piston 2. An adjusting wheel 61 is rotatably installed on the fixed seat 6. The fixed seat 6 and the adjusting wheel 61 facilitate the installation of the brake wheel cylinder on the car brake disc.

[0019] Working principle: When the valve seat 31 is threadedly connected to the piston 2, the positioning pin 38 is inserted into the piston 2 through the positioning spring 39, which can complete the quick installation of the valve seat 31 and the piston 2. When the pedal is lightly pressed to make the car brake, the brake fluid enters the inlet hole 13 through the inlet groove 14 and then enters the sliding groove 11 of the cylinder 1. Under the pressure of the brake fluid, the limiting ring 33 is pushed up, causing the limiting spring 32 to be compressed, so that a channel is formed between the valve seat 31 and the limiting ring 33. The brake fluid enters the sliding groove 11 through this channel and drives the piston 2 to move. After the piston 2 moves, it drives the valve seat 31 to move, so that the brake fluid delivery channel is completely opened.

[0020] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A brake wheel cylinder assembly with an adjusting valve, comprising a cylinder body (1), characterized in that, The cylinder (1) is provided with two sets of sliding grooves (11), and a piston (2) is slidably installed on each set of sliding grooves (11). The cylinder (1) is provided with two sets of connecting holes (12) that communicate with the two sets of sliding grooves (11). The cylinder (1) is provided with liquid inlet holes (13) that communicate with the two sets of sliding grooves (11). The cylinder (1) is provided with liquid inlet grooves (14) that communicate with the liquid inlet holes (13). The piston (2) is equipped with a regulating device (3) for regulating the pressure inside the cylinder (1).

2. The brake wheel cylinder assembly with adjusting valve according to claim 1, characterized in that, The adjusting device (3) includes a valve seat (31) threaded onto the piston (2), a limit spring (32) sleeved on the valve seat (31), a limit ring (33) slidably mounted on the valve seat (31) for use with the limit spring (32), and a shaft wire retaining ring (34) rotatably mounted on the valve seat (31) for use with the limit ring (33).

3. A brake wheel cylinder assembly with an adjusting valve according to claim 2, characterized in that, The regulating device (3) also includes a return spring (35) fixedly installed on the valve seat (31), a valve core (36) is slidably installed on the valve seat (31), and an regulating spring (37) slidably connected to the valve seat (31) is sleeved on the valve core (36).

4. A brake wheel cylinder assembly with an adjusting valve according to claim 3, characterized in that, The regulating device (3) also includes two sets of positioning pins (38) that are slidably mounted on the valve seat (31), and a positioning spring (39) is installed between the two sets of positioning pins (38).

5. A brake wheel cylinder assembly with an adjusting valve according to claim 1, characterized in that, The cylinder body (1) has an opening (4) that communicates with two sets of sliding grooves (11), and the cylinder body (1) has a connecting groove (41) that communicates with the opening (4).

6. A brake wheel cylinder assembly with an adjusting valve according to claim 1, characterized in that, A leather ring (5) is fitted onto the piston (2), and a dust cover (51) is fitted onto the piston (2).

7. A brake wheel cylinder assembly with an adjusting valve according to claim 1, characterized in that, A fixed seat (6) is inserted into the piston (2), and an adjusting wheel (61) is rotatably mounted on the fixed seat (6).

Images