Limiting connection structure of service brake

Abstract

The utility model relates to a limiting connection structure of a service brake, and belongs to a brake assembly in the technical field of automobile braking. The plate spring is installed in the brake caliper bodies, the pin is inserted into the positioning holes of the two brake caliper bodies and located above the plate spring, the cotter pin is inserted into the pin hole, and the tail of the cotter pin is pulled open. The brake caliper has the advantages that the structure is novel, the limiting structure of the plate spring on the brake caliper body is optimized from an original single limiting clip to a structure in which the pin and the cotter pin are matched for use, the novel structure matching can realize more reliable limiting of the plate spring, the connection stability is ensured, looseness caused by vibration or external force impact is avoided, looseness or falling is not easy to generate, and the service life of the plate spring is prolonged. Therefore, stable operation of the brake is ensured, and reliability of service brake product performance is improved.

Description

Technical Field

[0001] The utility model relates to a brake assembly in the technical field of automobile brakes, in particular to a limiting connection structure of a service brake. Background Art

[0002] The automobile braking system is an important part of the automobile safety performance, which directly affects the driving safety and stability of the automobile. With the continuous development of automobile technology, the braking system technology is also constantly upgraded and improved. The brake is the most core component in the braking system. It can generate braking torque through friction with the wheels to slow down or stop the car. The service brake is used to slow down the car or stop it in the shortest distance as needed during the driving process of the vehicle, and keep the speed stable when driving downhill. Its working principle is that when the driver steps on the brake pedal to apply the brake, the brake fluid enters the working chamber to push the piston, and at the same time pushes the brake block component to eliminate the gap, and then relies on pressure balance to clamp the friction brake disc to achieve deceleration or stop.

[0003] At present, the limit connection structure of the service brake is as follows Figure 3 As shown, after the piston, dust cover and other parts are installed into the inner and outer brake caliper bodies 3, the two inner and outer brake caliper bodies are fixedly connected by bolts, the brake pad component is installed in the middle of the two caliper bodies, the leaf spring 4 is installed on the brake pad component, and the limit clip 2 is inserted into the positioning holes of the two caliper bodies. The original limit clip structure is as shown Figure 4 As shown, the clip is formed by bending a single spring wire and has a concave limit. Its disadvantage is that under the influence of large impact force and vibration, its elasticity is easily weakened or fails, which causes the leaf spring to loosen or fall off, and ultimately affects the normal operation of the brake. Summary of the invention

[0004] The utility model provides a limit connection structure for a vehicle brake, so as to solve the problem that the original limit clip is easily weakened or invalidated in elasticity under the influence of large impact force and vibration, thereby causing the leaf spring to loosen or fall off, and finally affecting the normal operation of the brake.

[0005] The technical scheme adopted by the utility model is: comprising a cotter pin, a pin, a brake caliper body and a leaf spring, wherein the leaf spring is installed in the brake caliper body, the pin is inserted into the positioning holes of the two brake caliper bodies and is located above the leaf spring, the cotter pin is inserted into the pin hole, and the tail of the cotter pin is opened.

[0006] The pin is pressed onto the leaf spring to limit the leaf spring.

[0007] The advantages of the present utility model are as follows: the structure is novel. The limiting structure of the leaf spring on the brake caliper body is optimized from the original single limiting clip to the structure of a pin and a split pin used in combination. The new structural combination can achieve more reliable limiting of the leaf spring, ensuring the stability of the connection, avoiding loosening caused by vibration or external force impact, and being not prone to loosening or falling off, thereby ensuring the stable operation of the brake and improving the reliability of the performance of the service brake product. Brief Description of the Drawings

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings to be used in the description of the embodiments of the present utility model. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present utility model and these drawings.

[0009] Figure 1 is the structural schematic diagram of the present utility model;

[0010] Figure 2 is the structural schematic diagram of the split pin and the pin of the present utility model;

[0011] Figure 3 is the schematic diagram of the limiting connection structure of the current service brake;

[0012] Figure 4 is the structural schematic diagram of the limiting clip used in the limiting connection structure of the current service brake. Detailed Description of the Preferred Embodiment

[0013] The following will further elaborate on the present utility model in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of convenience in description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0014] As Figure 1 、 2 shown, it includes a split pin 1, a pin 2, a brake caliper body 3, and a leaf spring 4. Among them, the leaf spring 4 is installed in the brake caliper body 3, the pin 2 is inserted into the positioning holes of the two brake caliper bodies and is located above the leaf spring 4, and the split pin 1 is inserted into the pin hole and the tail of the split pin is bent open.

[0015] The pin 2 is press-fitted above the leaf spring 4 to limit the leaf spring.

[0016] Working Principle

[0017] As Figure 1As shown, after installing various parts such as the piston and dust cover into the inner and outer brake calipers 3, the two inner and outer brake calipers are fixedly connected by bolts. The brake pad assembly is installed between the two calipers, a leaf spring 4 is installed on top of the brake pad assembly, a pin 2 is inserted into the positioning holes of the two calipers, and a split pin 1 is inserted into the pin hole. The tail of the split pin is opened, and this pin 2 plays a role in limiting the leaf spring, avoiding loosening or falling off of the leaf spring caused by vibration or external force impact, and improving the braking performance and reliability of the service brake product.

[0018] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the protection scope of the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, any person skilled in the art within the technical scope disclosed by the present invention can make equivalent substitutions or changes according to the technical solution and the technical concept of the present invention, and these simple modifications all belong to the protection scope of the present invention.

Claims

1. A limit connection structure for a vehicle brake, comprising a brake caliper body and a leaf spring, wherein the leaf spring is installed in the brake caliper body, and is characterized in that: It further includes a split pin and a pin. The pin is inserted into the positioning holes of two brake caliper bodies and is located above the leaf spring. The split pin is inserted into the pin hole, and the tail of the split pin is bent open.

2. The limit connection structure of a vehicle brake according to claim 1, characterized in that: The pin is crimped above the leaf spring to limit the leaf spring.

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