Compact structure of wheel-side parking brake cable

Abstract

The utility model relates to the field of automobile manufacturing, concretely relates to a wheel -rim parking cable compact structure. Structure is aimed at automobile rear axle, parking pull arm, brake bottom plate, cable joint, metal conduit, cable and leaf spring, automobile rear axle and leaf spring fixed connection, brake bottom plate installs in the wheel rim, parking pull arm installs on brake bottom plate, and brake bottom plate is connected through cable joint between cable, the included angle between cable joint and parking pull arm is set as acute angle, and the outgoing line position of cable points to the wheel rim center. The utility model discloses through cable joint on brake bottom plate and parking pull arm present acute angle, and the setting cable support and metal conduit on parking cable joint can increase the clearance between cable joint and wheel rim, so that the clearance between cable and wheel rim, leaf spring is available, and further makes the rear brake can more outside arrangement, and the length of brake drum reduces, and effectively reduces cost and weight.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing, specifically to a compact structure for wheel-side parking cables. Background Technology

[0002] In the wheel-side cable arrangement of drum brakes, the traditional approach avoids interference between the cable and the wheel rim by moving the brake inward, sacrificing the cost and weight of the brake drum. Furthermore, there is no good solution for preventing interference between the cable and the leaf spring. The main problems with the traditional wheel-side cable arrangement design include: ① Insufficient clearance between the wheel-side parking cable and the wheel rim, making clearance difficult to control and causing the cable to be easily worn by the wheel rim; ② Insufficient clearance between the wheel-side parking cable and the suspension leaf spring, leading to dynamic wear of the cable; ③ Limited clearance between the wheel-side parking cable and the wheel rim forces the rear brake to be moved inward, resulting in a longer brake drum and sacrificing wheel-side cost and weight; ④ Sacrificing cable curvature to meet space requirements leads to low cable load efficiency and difficulty in cable return.

[0003] Disadvantages of existing technology: 1. The cable connector is arranged vertically to the parking arm on the brake base plate → the space between the cable connector and the wheel rim is small → the rear brake needs to be moved inward → the rear brake drum needs to be lengthened → the weight of the rear brake drum increases and the cost increases, such as Figure 1 As shown; 2. The cable is riveted inside the end joint, and the cable can jump at the joint position → the gap between the cable and the rim is required to be ≥25mm → the space between the cable and the rim is small → the rear brake is moved inward to avoid interference → the rear brake drum is lengthened → the weight of the rear brake drum is increased and the cost is high; 3. The cable joint section can jump → both the cable and the leaf spring are moving parts, and the gap is difficult to control. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a compact structure for wheel-side parking cables by adjusting the composition and angles of relevant components. The specific technical solution is as follows: A compact structure for a wheel-side parking cable is disclosed, comprising a rear axle of a vehicle, a parking arm, a brake backplate, a cable connector, a wheel rim, a cable, and a leaf spring. The rear axle and leaf spring are fixedly connected, the brake backplate is installed inside the wheel rim, the parking arm is installed on the brake backplate, and the brake backplate is connected to the cable via a cable connector. The included angle between the cable connector and the parking arm is set to an acute angle, and the cable outlet point towards the center of the wheel rim.

[0005] Furthermore, the included angle between the cable connector and the parking arm is set to 60-75°.

[0006] Furthermore, a metal conduit is provided at the outlet of the cable connector to fix the cable's direction at the rim and leaf spring positions.

[0007] Furthermore, a cable bracket is provided between the cable joint and the brake base plate, and the cable bracket and metal conduit fix the cable to form a minimum gap of 12mm between the cable and the wheel rim.

[0008] Furthermore, a cable sheath is provided between the metal conduit and the cable.

[0009] This invention optimizes the installation position and orientation of the cable connector on the brake base plate, increasing the space between the cable connector and the rim, thus freeing up space for cable arrangement. By adding a cable bracket and metal conduit to the cable connector, the gap between the cable and the rim, previously an envelope between the cable and the rim, is now a fixed gap between the metal conduit and the rim, reducing the required gap from 25mm to 12mm, thereby increasing the space for cable design and arrangement. Furthermore, the fixed metal conduit design on the cable connector secures the cable to the rim and leaf spring, reducing the uncontrollable gap during cable movement. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the utility model.

[0011] Figure label: 1-Rear axle of automobile, 2-Parking arm, 3-Brake base plate, 4-Joint bracket, 5-Cable connector, 6-Metal conduit, 7-Rim, 8-Cable sheath, 9-Cable, 10-Leaf spring. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] like Figure 1 As shown, a compact wheel-side parking cable structure is provided, comprising a rear axle 1, a parking arm 2, a brake base plate 3, a cable connector 5, a wheel rim 7, a cable 9, and a leaf spring 10. The rear axle 1 and the leaf spring 10 are fixedly connected. The brake base plate 3 is installed inside the wheel rim 7, and the parking arm 2 is installed on the brake base plate 3. The brake base plate 3 and the cable 9 are connected by the cable connector 5. The included angle between the cable connector 5 and the parking arm 2 is set to an acute angle, and the outlet position of the cable 9 points to the center of the wheel rim 7.

[0014] The included angle between the cable connector 5 and the parking arm 2 is set to 60-75°. A metal conduit 6 is provided at the cable outlet of the cable connector 5, fixing the cable 9 to run along the wheel rim 7 and leaf spring 10. A cable bracket 4 is provided between the cable connector 5 and the brake base plate, and the cable bracket 4 and the metal conduit 6 fix the cable to form a minimum gap of 12mm between the cable and the wheel rim. A cable sheath 8 is also provided between the metal conduit 6 and the cable 9.

[0015] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A compact structure for wheel-side parking cables, characterized in that: The structure is designed for a vehicle rear axle, parking arm, brake backing plate, cable connector, wheel rim, cable, and leaf spring. The rear axle and leaf spring are fixedly connected. The brake backing plate is installed inside the wheel rim, and the parking arm is installed on the brake backing plate. The brake backing plate and the cable are connected via a cable connector. The included angle between the cable connector and the parking arm is set to an acute angle, and the cable outlet point towards the center of the wheel rim.

2. The compact structure of the wheel-side parking cable according to claim 1, characterized in that: The included angle between the cable connector and the parking arm is set to 60-75°.

3. The compact structure of the wheel-side parking cable according to claim 1, characterized in that: A metal conduit is provided at the outlet of the cable connector to fix the cable's direction at the rim and leaf spring positions.

4. The compact structure of the wheel-side parking cable according to claim 3, characterized in that: A cable bracket is provided between the cable joint and the brake base plate. The cable bracket and the metal conduit fix the cable to form a minimum gap of 12mm between the cable and the wheel rim.

5. The compact structure of the wheel-side parking cable according to claim 1, characterized in that: A cable sheath is also provided between the metal conduit and the cable.

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