Central parking brake assembly

Abstract

The utility model discloses a central parking brake assembly, and relates to the technical field of parking brake systems. Comprising a brake bottom plate assembly, a supporting pin is installed on the top of the brake bottom plate assembly, brake shoes are installed on the two sides of the other end of the supporting pin, a parking pull rod pin shaft is arranged on one side of the supporting pin, and the parking pull rod pin shaft, the brake bottom plate assembly and the brake shoes are installed and fixed. A parking pull rod check ring is installed on the contact face of the parking pull rod pin shaft and the brake shoe, and a stable brake mechanism is arranged between the brake bottom plate assembly and the brake shoe. The upper portions of the two brake shoes act on the supporting shaft, the lower portions of the two brake shoes are connected through the adjusting device, when the actuator works, the brake shoe on one side is pushed out firstly, after the brake shoe makes contact with a brake drum, the brake shoe on the other side is pushed out due to counter-acting force, stable braking force can be provided, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of parking brake systems, in particular to a central parking brake assembly. Background Art

[0002] The central parking brake assembly refers to a braking device on a car, which is used to fix the position of the vehicle when parked to prevent the vehicle from sliding or moving. It generally adopts electronic or mechanical methods to apply torque to the wheels or transmission system to prevent the vehicle from sliding or moving. It is located on the wheel and generates friction by applying pressure through the brake. The brake disc or brake drum is in close contact, and the braking force is generated by friction, thereby slowing down the vehicle or stopping it, ensuring the safety and stability of the vehicle, ensuring that there will be no accidents when the vehicle is parked, and protecting the safety of the vehicle and the surrounding environment. The design and function of the central parking brake assembly have an important impact on the performance and stability of the entire vehicle, and is one of the important guarantees for safe driving of the vehicle.

[0003] The traditional central parking brake adopts a cable form. Due to the way the cable transmits force, the driver needs to exert a large force to operate the central parking brake, which may increase the difficulty of operation for the driver, especially for some special situations that require quick braking. In addition, frequent adjustments and maintenance are required to ensure the stability and reliability of the braking effect. This adjustment is usually cumbersome and requires professional skills and tools. It is difficult for ordinary car owners. In addition, the braking efficiency is low and the braking force provided is small.

[0004] To this end, we have developed a new central parking brake assembly. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing central parking brake assembly adopts a cable pull form, which easily leads to low braking efficiency and small braking force.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a central parking brake assembly, including a brake base plate assembly, a support pin is installed on the top of the brake base plate assembly, brake shoes are installed on both sides of the other end of the support pin, a parking rod pin shaft is provided on one side of the support pin, the parking rod pin shaft is installed and fixed with the brake base plate assembly and the brake shoe, a parking rod retaining ring is installed on the contact surface of the parking rod pin shaft and the brake shoe, and a stabilizing braking mechanism is provided between the brake base plate assembly and the brake shoe.

[0007] Through the above technical solution, electronic parking is adopted to generate appropriate braking torque according to actual working conditions, and the brake is electronically controlled. When starting, the system instructs EPB to release to help driving away, and the parking brake can be automatically applied after the engine is turned off.

[0008] The utility model is further configured such that the stable braking mechanism includes a plurality of pull rods, which are symmetrically arranged, and the pull rods are fixedly connected to the brake base plate assembly and the brake shoe through a penetration end of the pull rod, and a compression spring seat is installed, and a compression spring is arranged in the compression spring seat.

[0009] Through the above technical solution, the controller applies appropriate braking force to fix the car at a fixed location. At the same time, the structure is simple and the required space is small.

[0010] The utility model is further configured that a brake shoe fixing spring is arranged inside the brake base plate assembly, one end of the brake shoe fixing spring is fixedly connected to one of the brake shoes, and the other end of the brake shoe fixing spring is fixedly connected to the brake base plate assembly.

[0011] The utility model is further configured as follows: a support plate is provided between several of the brake shoes, the support plate is fixedly connected to the brake base plate assembly, the support plate limits the brake shoe, a brake shoe return spring is provided on the top of the support plate, and both ends of the brake shoe return spring are fixedly connected to the brake shoe.

[0012] Through the above technical solution, stable braking force can be provided and the operation is simple.

[0013] The utility model is further configured that an adjustment mechanism assembly is installed between the bottoms of a plurality of brake shoes, an adjustment mechanism fixing spring is arranged on the top of the parking rod retaining ring, and both ends of the adjustment mechanism fixing spring are fixedly connected to the brake shoes.

[0014] Through the above technical solution, the sliding or movement of the vehicle can be reliably prevented, thereby ensuring the safety of the parking position and effectively avoiding accidents or damages caused by sliding or movement.

[0015] The utility model is further configured such that an actuator is installed on one side of the brake base plate assembly, the output end of the actuator is slidably connected with the brake base plate assembly, and the output end of the actuator is located inside the brake base plate assembly, and a rocker arm is installed on the output end of the actuator, and the other end of the rocker arm is rotatably connected to one of the brake shoes.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model has two brake shoes acting on a supporting shaft at the upper part, and the lower part is connected with the two brake shoes by an adjustment device. When the actuator is working, the brake shoe on one side will be pushed out first. After contacting the brake drum, the reaction force prompts the brake shoe on the other side to be pushed out, so that a stable braking force can be provided and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a planar structural diagram of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model from the first viewing angle;

[0020] Figure 3 It is a cross-sectional view from a second viewing angle of the present utility model;

[0021] Figure 4 It is a three-dimensional structural diagram of the utility model.

[0022] In the figure: 1. brake base plate assembly; 2. brake shoe; 3. parking rod retaining ring; 4. parking rod pin; 5. support pin; 6. brake shoe return spring; 7. support plate; 8. brake shoe fixing spring; 9. actuator; 10. compression spring; 11. compression spring seat; 12. pull rod; 13. adjustment mechanism assembly; 14. adjustment mechanism fixing spring; 15. rocker arm. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] See also Figure 1 , Figure 2 , Figure 3 and Figure 4A central parking brake assembly comprises a brake base plate assembly 1, a brake shoe fixing spring 8 is arranged inside the brake base plate assembly 1, one end of the brake shoe fixing spring 8 is fixedly connected to one of the brake shoes 2, the other end of the brake shoe fixing spring 8 is fixedly connected to the brake base plate assembly 1, a support pin 5 is installed on the top of the brake base plate assembly 1, brake shoes 2 are installed on both sides of the other end of the support pin 5, a support plate 7 is arranged between several brake shoes 2, an actuator 9 is installed on one side of the brake base plate assembly 1, the output end of the actuator 9 is slidably connected with the brake base plate assembly 1, and the output end of the actuator 9 is located inside the brake base plate assembly 1, a rocker arm 15 is installed on the output end of the actuator 9, the other end of the rocker arm 15 is rotatably connected to one of the brake shoes 2, the support plate 7 is fixedly connected to the brake base plate assembly 1, the support plate 7 limits the brake shoe 2, several brake shoes 2, an adjustment mechanism assembly 13 is installed between the bottoms, an adjustment mechanism fixing spring 14 is arranged on the top of the parking rod retaining ring 3, and both ends of the adjustment mechanism fixing spring 14 are fixedly connected to the brake shoe 2, a brake shoe return spring 6 is arranged on the top of the support plate 7, and both ends of the brake shoe return spring 6 are fixedly connected to the brake shoe 2, a parking rod pin shaft 4 is arranged on one side of the support pin 5, the parking rod pin shaft 4 is fixedly installed with the brake base plate assembly 1 and the brake shoe 2, the parking rod retaining ring 3 is installed on the contact surface between the parking rod pin shaft 4 and the brake shoe 2, a stable braking mechanism is arranged between the brake base plate assembly 1 and the brake shoe 2, and the stable braking mechanism includes a plurality of pull rods 12, and the plurality of pull rods 12 are symmetrically arranged, and the pull rods 12 are fixedly connected to the brake base plate assembly 1 and the brake shoe 2 through, and a compression spring seat 11 is installed at one through end of the pull rod 12, and a compression spring 10 is arranged in the compression spring seat 11.

[0025] When the utility model is in use, after the driver steps on and presses the EPB button, the actuator 9 works, pulling the rocker arm 15 to push the brake shoe 2 outward, and generating a reaction force after contacting the brake drum, and then the reaction force pushes the other side brake shoe 2 outward through the support plate 7 and the adjustment mechanism assembly 13, thereby realizing parking braking, and after the actuator 9 is released, the brake shoes 2 on both sides return to their positions accordingly (because the left brake shoe 2 returns to its position after unloading the force by the right brake shoe 2, at this time the brake shoe fixing spring 8 can assist the brake shoe 2 on this side to return to its position to avoid dragging).

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A central parking brake assembly, comprising a brake base plate assembly (1), characterized in that: A support pin (5) is installed on the top of the brake base plate assembly (1), and brake shoes (2) are installed on both sides of the other end of the support pin (5). A parking rod pin shaft (4) is provided on one side of the support pin (5), and the parking rod pin shaft (4) is fixedly installed with the brake base plate assembly (1) and the brake shoe (2). A parking rod retaining ring (3) is installed on the contact surface between the parking rod pin shaft (4) and the brake shoe (2), and a stabilizing brake mechanism is provided between the brake base plate assembly (1) and the brake shoe (2).

2. A central parking brake assembly according to claim 1, characterized in that: The stable braking mechanism comprises a plurality of pull rods (12), the plurality of pull rods (12) being symmetrically arranged, the pull rods (12) penetrating and fixedly connected to the brake base plate assembly (1) and the brake shoe (2), a compression spring seat (11) being installed at one through end of the pull rod (12), and a compression spring (10) being arranged in the compression spring seat (11).

3. A central parking brake assembly according to claim 2, characterized in that: A brake shoe fixing spring (8) is arranged inside the brake base plate assembly (1), one end of the brake shoe fixing spring (8) is fixedly connected to one of the brake shoes (2), and the other end of the brake shoe fixing spring (8) is fixedly connected to the brake base plate assembly (1).

4. A central parking brake assembly according to claim 3, characterized in that: A support plate (7) is provided between a plurality of the brake shoes (2), the support plate (7) is fixedly connected to the brake base plate assembly (1), the support plate (7) limits the brake shoe (2), a brake shoe return spring (6) is provided on the top of the support plate (7), and both ends of the brake shoe return spring (6) are fixedly connected to the brake shoe (2).

5. A central parking brake assembly according to claim 4, characterized in that: An adjustment mechanism assembly (13) is installed between the bottoms of a plurality of the brake shoes (2), an adjustment mechanism fixing spring (14) is provided on the top of the parking rod retaining ring (3), and both ends of the adjustment mechanism fixing spring (14) are fixedly connected to the brake shoes (2).

6. A central parking brake assembly according to claim 5, characterized in that: An actuator (9) is installed on one side of the brake base plate assembly (1), an output end of the actuator (9) is slidably connected to the brake base plate assembly (1), and the output end of the actuator (9) is located inside the brake base plate assembly (1), a rocker arm (15) is installed on the output end of the actuator (9), and the other end of the rocker arm (15) is rotatably connected to one of the brake shoes (2).

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