CN218266916U

CN218266916U - Automobile drum brake

Info

Publication number: CN218266916U
Application number: CN202221064422.1U
Authority: CN
Inventors: 吕燕翔; 周国忠; 吕慧平; 史仁龙; 居勤坤; 王金豪
Original assignee: Liyang Hongxiang Machinery Manufacturing Co ltd
Current assignee: Liyang Hongxiang Machinery Manufacturing Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2023-01-10
Anticipated expiration: 2032-05-06

Abstract

The utility model discloses an automobile drum brake, which belongs to the technical field of automobiles and comprises a drum brake disc, wherein the outer side wall of the drum brake disc is fixedly connected with a retainer ring, the center of the inner wall of the drum brake disc is provided with a fixing and connecting assembly, the top end of the fixing and connecting assembly is provided with a brake wheel cylinder, the outer side wall of the brake wheel cylinder is fixedly connected with a positioning seat, one side of the positioning seat is provided with a lower return spring, the outer side wall of the positioning seat is fixedly connected with a cushion block, the outer side wall of the cushion block is provided with a brake shoe mechanism, the inner side wall of the cushion block is provided with a lower return spring, and the fixing and connecting assembly comprises a clamping sleeve; the utility model relates to a novelty for simple structure and practicality, it is more firm to fix with the automobile tire junction, can prevent when the tire rotational speed is higher that the stopper is not hard up, reduces the degree of wear, reduces use cost, thereby reaches best braking effect.

Description

Automobile drum brake

Technical Field

The utility model belongs to the technical field of the car, concretely relates to car drum brake.

Background

The drum brake is characterized in that a brake transmission mechanism is utilized to enable a brake shoe to press a brake friction plate on the inner side of a brake drum, so that braking force is generated, wheels are decelerated or stopped within the shortest distance according to requirements, driving safety is guaranteed, and the automobile is reliably parked and cannot automatically slide; however, the existing automobile drum brake has the problems that the structure is complex, the connection part of the existing automobile drum brake and an automobile tire is not firmly fixed, the brake is easy to loosen when the rotating speed of the tire is high, the abrasion degree is high when the automobile drum brake is used for a long time, the use cost is increased, and the optimal braking effect cannot be achieved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automobile drum brake to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an automobile drum brake, includes that the drum stops the dish, the drum stops a set lateral wall fixedly connected with retaining ring, and drum stops a set inner wall center department and installs fixed connection subassembly, the brake wheel cylinder is installed on fixed connection subassembly top, and brake wheel cylinder lateral wall fixedly connected with positioning seat, reset spring is installed to positioning seat one side, and positioning seat lateral wall fixedly connected with cushion, brake shoe mechanism is installed to the cushion lateral wall, and the cushion inside wall installs return spring down, fixed connection subassembly includes the clutch collar, clutch collar fixed mounting is in drum brake set inner wall center department, and clutch collar inner wall center department sets up threaded hole, the clutch collar one side fixedly connected with rights the cover, and rights the cover inner wall and install the clamp, right set lateral wall fixedly connected with fixing bolt, brake shoe mechanism includes the fixture block, the fixture block is laminated with cushion one side, and fixture block lateral wall fixedly connected with fixed buckle, the connecting plate is installed to fixed buckle outer wall both sides, and the fixture block inner wall laminating has the cushion.

As a preferred embodiment, retaining ring edge specifically is concave type, and the inside wall of retaining ring and the drum are stopped the laminating of the outside wall of dish mutually.

As a preferred embodiment, the threaded hole is provided with a threaded thread on the inner wall thereof, and the threaded hole is penetrated by the clamping sleeve and is connected with the centering sleeve in a penetrating manner.

In a preferred embodiment, one side of the clamp is jointed with the threaded hole, and the clamp is jointed around the center of the inner wall of the centering sleeve.

In a preferred embodiment, the fixing bolt penetrates through the centering sleeve and is fixedly connected with the clamping band.

In a preferred embodiment, the upper return spring is fixedly connected with the brake wheel cylinder through a positioning seat, and the upper return spring is a brass spiral spring member.

As a preferred embodiment, the rubber pad is attached around the inner wall of the fixture block, and the rubber pad specifically adopts a butyl rubber member.

Compared with the prior art, the beneficial effects of the utility model are that:

according to the automobile drum brake, the brake and a tire are more firmly fixed by arranging the clamping sleeve, the threaded hole, the centering sleeve, the clamp, the fixing bolt and the like, so that loosening is prevented, the requirements of users are met, and the working efficiency is improved;

this automobile drum brake through setting up fixture block, fixed buckle, connecting plate and cushion isotructure, is convenient for improve the wearability of stopper, reduces the maintenance cost, and the practicality is strong to reach best braking effect.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the fixing and connecting assembly of the present invention;

fig. 3 is a schematic structural diagram of a brake shoe mechanism according to the present invention;

fig. 4 is an enlarged view of the rubber mat of the present invention.

In the figure: 1. a drum brake disc; 2. a retainer ring; 3. fixing the connecting assembly; 31. a clamping sleeve; 32. a threaded hole; 33. a centralizing sleeve; 34. clamping a hoop; 35. fixing the bolt; 4. a brake wheel cylinder; 5. positioning seats; 6. an upper return spring; 7. cushion blocks; 8. a brake shoe mechanism; 81. a clamping block; 82. fixing the buckle; 83. a connecting plate; 84. a rubber pad; 9. and a lower return spring.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.

Example one

With reference to fig. 1-4, the utility model provides an automobile drum brake, including drum brake disc 1, drum brake disc 1 lateral wall fixedly connected with retaining ring 2, and drum brake disc 1 inner wall center department installs fixed connection subassembly 3, brake wheel cylinder 4 is installed on fixed connection subassembly 3 top, and brake wheel cylinder 4 lateral wall fixedly connected with positioning seat 5, reset spring 6 is installed to positioning seat 5 one side, and positioning seat 5 lateral wall fixedly connected with cushion 7, brake shoe mechanism 8 is installed to cushion 7 lateral wall, and cushion 7 inside wall installs down return spring 9, fixed connection subassembly 3 includes clamping sleeve 31, clamping sleeve 31 fixed mounting is in drum brake disc 1 inner wall center department, and clamping sleeve 31 inner wall center department has seted up threaded hole 32, clamping sleeve 31 one side fixedly connected with centralizing sleeve 33, and centralizing sleeve 33 inner wall installs clamp 34, centralizing sleeve 33 lateral wall fixedly connected with fixing bolt 35, brake shoe mechanism 8 includes fixture block 81, fixture block 81 laminates with 7 one side, and 81 fixture block fixed connection has fixed buckle 82, fixed buckle 82 installs connecting plate 83 in fixed buckle 82 outer wall both sides, and fixture block 81 inner wall has a rubber mat 84, make simple structure and practical, it is firm with the fixed with the fixture block 81, it is firm to laminate with the automobile tire, thereby the higher degree of connection department, prevent that the brake wheel tire lateral wall from reducing the cost of use, thereby the wearing and reducing.

Example two

With reference to fig. 1 and 2, based on the above embodiment 1, the edge of the retainer ring 2 is concave, and the inner side wall of the retainer ring 2 is attached to the outer side wall of the drum brake disc 1.

EXAMPLE III

With reference to fig. 1 and 2, based on the

above embodiments

1, 2 or 3, a threaded thread is formed on an inner wall of the threaded hole 32, and the threaded hole 32 is penetrated by the clamping sleeve 31 and is connected with the centering sleeve 33.

Example four

Referring to fig. 1, 2 and 3, based on the

above embodiments

1, 2, 3 or 4, one side of the clamp 34 is attached to the threaded hole 32, and the clamp 34 is attached to the center of the inner wall of the centering sleeve 33.

When the automobile brake disc is used, the centering sleeve 33 is fixedly connected with the center of the drum brake disc 1 through the fixing bolt 35, the clamp 34 is fixedly connected with a tire fixing part in cooperation with the threaded hole 32, the fixing part inside the threaded hole 32 is clamped through the clamping sleeve 31 and is prevented from loosening, the return spring 6 and the lower return spring 9 are driven to stretch by the brake wheel cylinder 4, the clamping block 81 is clamped, the clamping block 81 and the hub joint are fixed through the cooperation of the fixing buckle 82 and the connecting plate 83, the friction force can be increased when the automobile brake is performed through the rubber pad 84, the rotating speed of the tire is reduced, the abrasion resistance is high, the structure is simple and practical, the fixing with the automobile tire joint is firmer, the brake can be prevented from loosening when the rotating speed of the tire is higher, the abrasion degree is reduced, the use cost is reduced, and the best brake effect is achieved.

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

Claims

1. The utility model provides an automobile drum brake, includes drum brake dish (1), its characterized in that: the drum brake disc is characterized in that a retainer ring (2) is fixedly connected to the outer side wall of the drum brake disc (1), a fixing and connecting assembly (3) is installed at the center of the inner wall of the drum brake disc (1), a brake wheel cylinder (4) is installed at the top end of the fixing and connecting assembly (3), a positioning seat (5) is fixedly connected to the outer side wall of the brake wheel cylinder (4), an upper reset spring (6) is installed on one side of the positioning seat (5), a cushion block (7) is fixedly connected to the outer side wall of the positioning seat (5), a brake shoe mechanism (8) is installed on the outer side wall of the cushion block (7), a lower reset spring (9) is installed on the inner side wall of the cushion block (7), the fixing and connecting assembly (3) comprises a clamping sleeve (31), the clamping sleeve (31) is fixedly installed at the center of the inner wall of the drum brake disc (1), a threaded hole (32) is formed in the center of the inner wall of the clamping sleeve (31), a centering sleeve (31) is fixedly connected with a centering sleeve (33), a clamp hoop (34) is installed on the inner wall of the centering sleeve (33), a fixing bolt (35) is fixedly connected to the outer side wall of the clamping sleeve (33), the brake shoe mechanism (8) comprises a fixture block (81), a fixture block (7) and a fixture block (82) fixedly connected with a fastener (82), and a fastener (82) fixedly connected to the outer wall (82), and the inner wall of the clamping block (81) is attached with a rubber pad (84).

2. An automotive drum brake according to claim 1, characterized in that: retaining ring (2) edge specifically is interior concave type, and the inside wall of retaining ring (2) and the drum are stopped and are laminated mutually outside of dish (1).

3. An automotive drum brake according to claim 1, characterized in that: the inner wall of the threaded hole (32) is provided with a threaded wire, and the threaded hole (32) penetrates through the clamping sleeve (31) and is connected with the centering sleeve (33) in a penetrating manner.

4. An automotive drum brake according to claim 1, characterized in that: one side of the hoop (34) is attached to the threaded hole (32), and the hoop (34) is attached to the center of the inner wall of the centering sleeve (33) in a surrounding mode.

5. An automotive drum brake according to claim 1, characterized in that: the fixing bolt (35) penetrates through the centering sleeve (33) and is fixedly connected with the clamp (34).

6. An automotive drum brake according to claim 1, characterized in that: the upper return spring (6) is fixedly connected with the brake wheel cylinder (4) through the positioning seat (5), and the upper return spring (6) specifically adopts a brass spiral spring component.

7. An automotive drum brake according to claim 1, characterized in that: the rubber pad (84) is attached to the periphery of the inner wall of the clamping block (81) in a surrounding mode, and the rubber pad (84) specifically adopts a butyl rubber component.