Oblique insertion type automobile brake

Abstract

The invention discloses an oblique insertion type automotive brake which comprises a friction plate and an air cylinder, the air cylinder is an annular air cylinder and comprises an annular cylinder body, a piston and a piston rod which are connected with each other are installed in the annular cylinder body, the piston is of a slope type structure, and the slope type structure is connected with the friction plate through an ejector block. Springs are arranged in the annular cylinder body and between the annular cover plate and the piston or on the piston rod. According to the invention, the air cylinder is inflated, and the spring force of the spring acts on the top block through the slope type structure of the piston in an oblique insertion manner, so that the stress of each part is more balanced and more stable, and the condition that the part is damaged due to overlarge stress of a certain part under an extreme condition is avoided. And the brake adaptability is better, and the application is wider. By adjusting the gradient range of the slope type structure of the piston, brakes with different sizes and various specifications are easy to manufacture, and particularly the requirements of trucks with various tonnages for the brakes can be met.

Description

Technical Field

[0001] This invention relates to a braking system, specifically to an automotive brake. Background Technology

[0002] Currently, automotive brakes refer to components that generate braking force to resist the movement or tendency of a vehicle to move. They can be divided into drum brakes, disc brakes, and disc brakes, and can employ various braking methods such as predictive braking, emergency braking, and parking braking. Drum brakes have a large instantaneous braking force, but the braking force decreases rapidly after heating up; disc brakes have better stability, but their braking efficiency is not high; disc brakes are technically advanced, and while their instantaneous braking force is insufficient, they can still maintain a good braking effect after heating up. Each type has its own characteristics. However, the braking force can be uneven and unstable, which adversely affects the braking effect. Multiple molds need to be made for various specifications, increasing production costs, and braking safety and product quality cannot be effectively guaranteed. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a slanted-insert automotive brake that is easy to process and install, has balanced braking force, and is stable in operation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a slanted-insertion automobile brake, comprising a friction pad and a cylinder, wherein the cylinder is an annular cylinder and includes an annular cylinder body, wherein an interconnected piston and piston rod are mounted in the annular cylinder body, the piston has a ramp structure and the ramp structure is connected to the friction pad through a top block, the top block passing through the annular cylinder body and connecting to the friction pad.

[0005] The ramp-type structure consists of several protrusions, each protrusion having a ramp surface on one side that connects to the top block. The ramp surface of the protrusion is arc-shaped or polygonal. The piston, protrusions, and piston rod are all provided with interconnected air intake channels, the inner end of which communicates with the internal cavity of the annular cylinder. The annular cylinder is provided with a second air intake channel, the inner end of which communicates with the internal cavity of the annular cylinder.

[0006] The bottom of the annular cylinder is equipped with an annular cover plate. The outer end of the piston rod extends from the annular cover plate and is fitted with a nut for limiting, facilitating braking and ensuring a secure and reliable stop. A spring is mounted on the piston rod. A spring is also mounted inside the annular cylinder, between the annular cover plate and the piston. A limiting groove is provided on the annular cover plate, and a limiting protrusion is provided on the piston where it mates with the end of the spring. One end of the spring mates with the limiting groove, and the other end mates with the limiting protrusion.

[0007] A sealing ring is installed between the piston and the inner wall of the annular cylinder to form a sealed space and a tight fit. The piston is a single ring-shaped component, while the piston rod and spring are multiple components. The piston rod with an air intake channel is a single component, and the top block is multiple components.

[0008] Compared with existing technologies, this inclined-insertion automotive brake, employing the structure of this invention, has the following advantages: The structure has a more rational stress distribution and more stable performance. The force of the air filling the cylinder and the spring force, acting through the inclined piston structure, is applied to the top block in an inclined insertion manner, allowing the top block to contact the friction pads and achieve braking. This results in more balanced and stable stress distribution on each component, preventing damage to any component due to excessive stress under extreme conditions. It also offers better braking adaptability and wider application. By adjusting the slope range of the piston's inclined structure, brakes of various sizes and specifications can be easily manufactured, particularly meeting the braking needs of trucks of various tonnages. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the oblique insertion type automotive brake of the present invention.

[0010] Figure 2 This is a schematic diagram of another embodiment of the present invention (a second air intake channel is provided on the annular cylinder).

[0011] Figure 3 for Figure 1 A top-down structural diagram showing the piston (and protrusions, piston rod) connected to the sealing ring and spring respectively (the spring shown is only a partial number of parts).

[0012] Figure 4 for Figure 1 A schematic diagram of the upward structure in which the piston (and protrusion, piston rod) is connected to the sealing ring and spring respectively (the number of springs shown is only a partial number). Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Reference Figure 1 , Figure 3 , Figure 4As can be seen, the present invention provides a slanted-insertion automotive brake, comprising a friction pad 7 and a cylinder. The cylinder is an annular cylinder comprising an annular cylinder body 1. An interconnected piston 2 and piston rod 6 are mounted within the annular cylinder body 1. The piston 2 has a ramp structure, which connects to the friction pad 7 via a top block 3. The top block 3 passes through the annular cylinder body 1 and connects to the friction pad 7. The ramp structure is composed of several protrusions 11 (the protrusions 11 are evenly distributed around the periphery of the piston 2, consisting of three or more pieces, and the protrusions 11 and piston 2 are integral). One side of each protrusion 11 has a ramp surface 12 that connects to the top block 3 (the top block 3 also consists of three or more corresponding pieces). The piston 2, one of the protrusions 11, and the piston rod 6 are all provided with a communicating air intake channel 9. The inner end of the air intake channel 9 communicates with the internal cavity of the annular cylinder body 1, and its outer end connects to an air source. Alternatively, another embodiment can be provided, such as... Figure 2 As shown, the annular cylinder 1 is provided with a second air intake channel 19, the inner end of which communicates with the internal cavity of the annular cylinder 1, and its outer end is connected to the air source. The ramp surface 12 of the protrusion 11 is arc-shaped or polygonal (quadrilateral or more polygonal).

[0015] A sealing ring 8 (forming a double seal) is installed between the piston 2 and the inner wall of the annular cylinder 1, creating a sealed space and a tight fit. An annular cover plate 5 is installed at the bottom of the annular cylinder 1. The outer end of the piston rod 6 extends from the annular cover plate 5 and is fitted with a nut 10 for limiting, facilitating braking and ensuring a secure and reliable stop. A spring 4 is installed on the piston rod 6, inside the annular cylinder 1, between the annular cover plate 5 and the piston 2. A limiting groove 14 (or limiting protrusion) is provided on the annular cover plate 5. A limiting protrusion 13 (or limiting groove) is provided on the piston 2 at the point where it connects with the end of the spring 4. One end of the spring 4 connects to the limiting groove 14, and the other end connects to the limiting protrusion 13, achieving spring energy storage and spring working stability.

[0016] The piston 2 is a single ring-shaped component, while the piston rod 6 and spring 4 are multiple components. The piston rod 6 with the air intake channel 9 is a single component, and the top block 3 is multiple components. The annular cylinder body 1, piston 2 (and protrusion 11), spring 4, piston rod 6, annular cover plate 5, etc., constitute an annular cylinder.

[0017] As shown in the attached figure, the present invention achieves left and right movement of the piston rod 6, the spring, and the piston by inflating or deflating the piston rod 6, the piston 2, and the protrusion 11 in the air intake channel 9 (or the second air intake channel 19), and utilizing the interaction between the elastic force of the spring 4 and the air pressure in the annular cylinder 1. The piston rod 6, the spring, and the piston move left and right by moving and changing the slope structure of the piston (protrusion 11 and its slope surface 12), thereby achieving the extension and retraction of the top block 3, so that the top block 3 abuts or disengages from the friction plate 7 to achieve braking or release of braking.

Claims

1. An oblique-insertion type automotive brake, comprising friction pads and a cylinder, characterized in that: The cylinder is an annular cylinder and includes an annular cylinder body. An interconnected piston and piston rod are installed in the annular cylinder body. The piston has a ramp structure and the ramp structure is connected to a friction plate through a top block. The top block passes through the annular cylinder body and is connected to the friction plate.

2. The oblique-insertion type automotive brake as described in claim 1, characterized in that: The slope structure is composed of several protrusions, and one side of each protrusion has a slope surface that connects with the top block.

3. The oblique-insertion type automotive brake as described in claim 2, characterized in that: The ramp surface of the protrusion is arc-shaped or polygonal.

4. The oblique-insertion type automotive brake as described in claim 2, characterized in that: The piston, the protrusion, and the piston rod are all provided with a connected air intake channel, the inner end of which is connected to the internal cavity of the annular cylinder.

5. The oblique-insertion type automotive brake as described in claim 2, characterized in that: The annular cylinder is provided with a second air intake channel, the inner end of which communicates with the internal cavity of the annular cylinder.

6. The oblique-insertion type automotive brake as described in claim 1 or 4, characterized in that: The bottom of the annular cylinder is equipped with an annular cover plate, and the outer end of the piston rod extends from the annular cover plate and is fitted with a nut for limiting its position.

7. The oblique-insertion type automotive brake as described in claim 6, characterized in that: A spring is installed on the piston rod. A spring is installed in the annular cylinder and between the annular cover plate and the piston. A limiting groove is provided on the annular cover plate. A limiting protrusion is provided on the piston and at the end of the spring. One end of the spring is connected to the limiting groove and the other end is connected to the limiting protrusion.

8. The oblique-insertion type automotive brake as described in claim 1 or 2, characterized in that: A sealing ring is installed between the piston and the inner wall of the annular cylinder.

9. The oblique-insertion type automotive brake as described in claim 7, characterized in that: The piston is a ring-shaped piece, the piston rod and spring are several pieces, the piston rod with an air intake channel is a piece, and the top block is several pieces.

Images