Automobile drum brake pad with improved stability

Abstract

The utility model discloses a kind of stability promotion's automobile drum brake pad, including bottom plate, the outer circular surface of the bottom plate is rotatably installed with brake drum, the inner side surface of the brake drum is equipped with long recess, the middle position of one side of the bottom plate is fixedly connected with fixed block, the one side of the fixed block is fixedly connected with connecting rod, one end of the connecting rod is fixedly connected with support rod, the both ends of the support rod are hinged with arc plate by hinging seat, the one side surface of the arc plate is fixedly connected with fixed ring, the one side of the fixed ring is fixedly connected with tension spring, the other side surface of the arc plate is equipped with fixed groove, brake pad is fixedly installed in the inside of the fixed groove, the inside of the brake pad is fixedly embedded with framework plate, the one side surface of the framework plate is fixedly connected with long protrusion, can increase structural strength, can enhance braking effect after surface wear, improve safety stability, facilitate combined use.

Description

Technical Field

[0001] This utility model relates to the field of automotive brake pads, and more specifically, to an automotive drum brake pad with improved stability. Background Technology

[0002] The braking system of an automobile is also known as the vehicle braking device. Its functions are: to force a moving vehicle to decelerate or even stop as required by the driver; to keep a stopped vehicle stable under various road conditions, including on slopes; and to maintain a stable speed for a vehicle traveling downhill. Current automobile braking systems use drum brakes, which offer better braking force than disc brakes.

[0003] The utility model with authorization announcement number CN 206265014 U relates to the field of automotive braking device technology, and in particular to a novel automotive drum brake device. This novel automotive drum brake device includes a brake cavity composed of a brake drum and a brake backing plate. The brake cavity houses automotive drum brake pads. The device also includes a drive unit comprising a brake pedal, on which a push rod, a master cylinder piston, a master cylinder, an oil pipe, and a brake wheel cylinder are sequentially connected. The brake wheel cylinder houses a wheel cylinder piston, with both ends of the piston connected to the automotive drum brake pads. The wheel cylinder is installed within the brake cavity. This utility model has a simple structure, uses arc-shaped brake shoes, requires fewer parts, is easy to install, reduces costs, saves resources, improves braking performance, and reduces weight, thus lowering fuel consumption. Furthermore, the use of non-uniform thickness friction pads allows it to withstand greater pressure, alters vibration transmission, and significantly improves the noise level during braking.

[0004] In the aforementioned disclosed structure, an integrated brake pad structure is used to position the brake pads on the brake plate. However, the lack of a hinged arc plate for positioning the brake pads results in a smaller travel distance for overturning braking. Furthermore, the lack of an internal skeleton plate to increase strength means that the brake pads cannot be forced to brake after wear, leading to poor stability. This situation needs to be improved. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a car drum brake pad with improved stability. It is connected to the brake drum via a base plate, allowing for combined installation and rotational adjustment. The brake pad is installed by hinged arc-shaped plates via support rods mounted on fixed blocks, facilitating separate installation and fixing. The larger rotation shape facilitates alignment and braking. At the same time, the internally embedded skeleton plate connects long protrusions and positioning screws, which increases structural strength. After surface wear, it can enhance braking effect, improve safety and stability, and facilitate combined use.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] An improved stability automotive drum brake pad includes a base plate. A brake drum is rotatably mounted on the outer circular surface of the base plate. The inner surface of the brake drum has an elongated groove. A fixing block is fixedly connected to the middle of one side of the base plate. A connecting rod is fixedly connected to one side of the fixing block. A support rod is fixedly connected to one end of the connecting rod. Arc-shaped plates are hinged to both ends of the support rod via hinge seats. A fixing ring is fixedly connected to one side of the arc-shaped plate. A tension spring is fixedly connected to one side of the fixing ring. A fixing groove is provided on the other side of the arc-shaped plate. A brake pad is fixedly installed inside the fixing groove. A skeleton plate is fixedly embedded inside the brake pad. An elongated protrusion is fixedly connected to one side of the skeleton plate. A positioning screw is fixedly connected to the other side of the skeleton plate. A fixing through hole is provided inside the fixing groove. The positioning screw is fixedly connected inside the fixing through hole.

[0008] Furthermore, a washer is fixedly sleeved on one end of the positioning screw, and a fixing nut is pressed and connected to one side of the washer.

[0009] Furthermore, the fixing nut is threaded onto one end of the positioning screw and located on the inner side of the arc-shaped plate.

[0010] Furthermore, one side surface of the gasket is provided with an arc-shaped surface, which is tightly connected to the inner surface of the arc-shaped plate. The gasket and the positioning nut are connected by positioning screws. Combined with the support and positioning of the arc-shaped surface, it can fit the arc-shaped surface for installation and fixation, ensuring the stability of the split connection and improving the safety of use.

[0011] Furthermore, a ball groove is provided at the end of the arc-shaped plate, and the ball groove is located at the upper end of the tension spring.

[0012] Furthermore, a brake cylinder is fixedly installed on one side of the base plate, and the brake cylinder is located at the end of the arc-shaped plate.

[0013] Furthermore, both ends of the rod of the brake cylinder are provided with ball heads, which are inserted into the inside of the ball groove. By installing the ball heads through the brake cylinder and connecting them to the end position of the arc plate through the ball groove, they can be combined and positioned, making it convenient to push open for braking, avoiding separation and falling off, ensuring safety and stability, and facilitating control and use.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This scheme connects the brake drum through the base plate, which can be combined and installed for rotation adjustment. The support rod installed by the fixed block is hinged to the arc plate, thereby installing the brake pads. This facilitates separate installation and fixing, and the larger flipping shape facilitates alignment and braking. At the same time, the long strip protrusion and positioning screw are connected by the internally embedded skeleton plate, which can increase the structural strength. After the surface is worn, the braking effect can be enhanced, improving safety and stability, and making it convenient for combined use.

[0016] (2) By connecting the washer and the locating nut with the locating screw, and combining the arc-shaped surface support for positioning, the arc-shaped surface can be fitted for installation and fixation, ensuring the stability of the split connection and improving the safety of use.

[0017] (3) The ball head is installed through the brake cylinder and connected to the end of the arc plate through the ball groove. It can be combined and positioned to facilitate pushing and opening for braking, avoid separation and falling off, and is safe, stable and easy to control. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the brake pad connection of this utility model;

[0021] Figure 4 This is a partial structural diagram of the connection between the brake pad and the arc plate of this utility model;

[0022] Figure 5 This is a partial structural diagram of the connection between the gasket and the positioning screw of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Base plate, 11. Brake drum, 12. Long groove, 13. Fixing block, 14. Connecting rod, 15. Support rod, 16. Hinge seat, 17. Arc plate, 18. Fixing ring, 19. Tension spring, 2. Fixing groove, 21. Brake pad, 22. Frame plate, 23. Long protrusion, 24. Fixing through hole, 25. Positioning screw, 26. Washer, 27. Fixing nut, 28. Arc surface, 3. Ball groove, 31. Brake cylinder, 32. Ball head. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 3 and Figure 4 A stability-enhanced automotive drum brake pad includes a base plate 1. A brake drum 11 is rotatably mounted on the outer surface of the base plate 1. The inner surface of the brake drum 11 has an elongated groove 12. A fixing block 13 is fixedly connected to the middle of one side of the base plate 1. A connecting rod 14 is fixedly connected to one side of the fixing block 13. A support rod 15 is fixedly connected to one end of the connecting rod 14. Arc-shaped plates 17 are hinged to both ends of the support rod 15 via hinge seats 16. A fixing ring 18 is fixedly connected to one side of the arc-shaped plate 17. A tension spring 19 is fixedly connected to one side of the fixing ring 18. By tensioning the arc-shaped plates 17 on both sides by the tension spring 19, the brake pad 21 can be separated from the brake drum 11, thus ensuring normal rotation. Pushing the two arc-shaped plates 17 outward around the hinge seat 16 can press the brake pad 21 against the inner surface of the brake drum 11, thereby achieving friction braking and facilitating control. The fixing block 13 mounts the connecting rod 14 and the support rod 15. The rod 15 can be installed and fixed separately to ensure the stability and accuracy of the structural alignment, thereby supporting and reinforcing the arc plate 17 and improving the safety of use. The other side surface of the arc plate 17 is provided with a fixing groove 2, and a brake pad 21 is fixedly installed inside the fixing groove 2. A skeleton plate 22 is fixedly embedded inside the brake pad 21. A long strip protrusion 23 is fixedly connected to one side surface of the skeleton plate 22, and a positioning screw 25 is fixedly connected to the other side of the skeleton plate 22. A fixing through hole 24 is provided inside the fixing groove 2, and the positioning screw 25 is fixedly connected to the inside of the fixing through hole 24. The skeleton plate 22 is connected inside the brake pad 21, which can improve the structural strength and ensure the braking effect. After the brake pad 21 wears continuously, the skeleton plate 22 inside protrudes, and the long strip protrusion 23 on the surface can release the inner surface of the brake drum 11, so that it can be snapped into the long strip groove 12, which can directly brake, thereby ensuring the stability of use, facilitating subsequent maintenance and replacement, and making installation and use convenient.

[0027] Please see Figure 2 and Figure 5One end of the positioning screw 25 is fixedly fitted with a washer 26, and a fixing nut 27 is pressed and connected to one side of the washer 26. The fixing nut 27 is threaded onto one end of the positioning screw 25 and is located on the inner side of the arc plate 17. One side surface of the washer 26 is provided with an arc surface 28, which is pressed and connected to the inner surface of the arc plate 17. The washer and the positioning nut are connected by the positioning screw, and the arc surface is used for support and positioning. The arc surface can be fitted to the arc surface for installation and fixation, ensuring the stability of the split connection and improving the safety of use.

[0028] Please see Figure 1 and Figure 2 The end of the arc plate 16 is provided with a ball groove 3, which is located at the upper end of the tension spring 19. A brake cylinder 31 is fixedly installed on one side of the base plate 1. The brake cylinder 31 is located at the end of the arc plate 16. Both ends of the rod of the brake cylinder 31 are provided with ball heads 32, which are inserted into the inside of the ball groove 3. By installing the ball heads through the brake cylinder and connecting them to the end of the arc plate through the ball groove, they can be combined and positioned, making it convenient to push open for braking, avoiding separation and falling off, ensuring safety and stability, and facilitating control and use.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A stability-enhanced automotive drum brake pad, comprising a base plate (1), wherein a brake drum (11) is rotatably mounted on the outer circular surface of the base plate (1), and the inner surface of the brake drum (11) is provided with an elongated groove (12), and a fixing block (13) is fixedly connected to the middle position of one side of the base plate (1), characterized in that: A connecting rod (14) is fixedly connected to one side of the fixing block (13). A support rod (15) is fixedly connected to one end of the connecting rod (14). An arc plate (17) is hinged to both ends of the support rod (15) through a hinge seat (16). A fixing ring (18) is fixedly connected to one side of the arc plate (17). A tension spring (19) is fixedly connected to one side of the fixing ring (18). A fixing groove (2) is provided on the other side of the arc plate (17). A brake pad (21) is fixedly installed inside the fixing groove (2). A skeleton plate (22) is fixedly embedded inside the brake pad (21). A long strip protrusion (23) is fixedly connected to one side of the skeleton plate (22). A positioning screw (25) is fixedly connected to the other side of the skeleton plate (22). A fixing through hole (24) is provided inside the fixing groove (2). The positioning screw (25) is fixedly connected inside the fixing through hole (24).

2. The automotive drum brake pad with improved stability according to claim 1, characterized in that: One end of the positioning screw (25) is fixedly sleeved with a washer (26), and a fixing nut (27) is pressed and connected to one side of the washer (26).

3. The automotive drum brake pad with improved stability according to claim 2, characterized in that: The fixing nut (27) is threaded onto one end of the positioning screw (25) and located on the inner side of the arc plate (17).

4. The automotive drum brake pad with improved stability according to claim 2, characterized in that: The gasket (26) has an arc-shaped surface (28) on one side surface, and the arc-shaped surface (28) is tightly connected to the inner surface of the arc plate (17).

5. The automotive drum brake pad with improved stability according to claim 1, characterized in that: The end of the arc plate (17) is provided with a ball groove (3), which is located at the upper end of the tension spring (19).

6. The automotive drum brake pad with improved stability according to claim 1, characterized in that: A brake cylinder (31) is fixedly installed on one side of the base plate (1), and the brake cylinder (31) is located at the end of the arc plate (17).

7. The automotive drum brake pad with improved stability according to claim 6, characterized in that: Both ends of the rod head of the brake cylinder (31) are provided with ball heads (32), and the ball heads (32) are inserted into the inside of the ball groove (3).

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