Waterproof structure of automobile brake cable connector

Abstract

The utility model discloses a waterproof structure of an automobile brake cable connector, which comprises a guide post, a threaded section arranged on the outer side of the guide post, a knurled connector sleeved on the outer side of the guide post, a matching groove formed in the knurled connector, a threaded groove formed in the knurled connector, a first sealing ring arranged on the outer side of the guide post, and a second sealing ring arranged on the outer side of the guide post. A connecting piece is arranged in the guide column, a nylon connector is arranged at one end of the connecting piece, and an inhaul cable body is sleeved with the nylon connector. Space extrusion is formed through the knurled connector, the guide column and the nylon connector, meanwhile, the closed space is filled with the three sealing rings, multi-layer sealing is achieved, through the matching mode of existing components, the difficulty of mounting and dismounting by workers is effectively lowered, and the inhaul cable connector is convenient to assemble, simple in structure and convenient to adapt.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile braking, in particular to a waterproof structure for an automobile braking cable joint. Background Technique

[0002] At present, with the development of automobile intelligent technology, the braking cable, as an important component in the automobile parking system, transmits force during the parking process. If water enters between the electronic parking actuator and the seal of the cable, it will first corrode the internal components, and below 0°C, this water may freeze, causing the cable to be unable to be pulled. Therefore, the sealing of the cable is particularly important. Poor sealing at the cable will also cause the internal grease to volatilize, not only making parking laborious but also causing internal wear and reducing the service life.

[0003] Most of the joints of the braking cable are movably connected. The existing protection for the cable is at the core part of the cable, and the protection measures for the cable sheath joint are poor. Although the integral molding of some cable structures improves the sealing effect, it reduces the practicality of the subsequent braking cable and increases the difficulty of installation and use. Content of the Utility Model

[0004] The purpose of the utility model is to provide a waterproof structure for an automobile braking cable joint to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A waterproof structure for an automobile braking cable joint, including a guide post, a threaded section is arranged on the outer side of the guide post, a knurled joint is sleeved on the outer side of the guide post, a mating groove is opened inside the knurled joint, a threaded groove is opened inside the knurled joint, a first sealing ring is arranged on the outer side of the guide post, a second sealing ring is arranged on the outer side of the guide post, a connecting piece is arranged inside the guide post, a nylon joint is arranged at one end of the connecting piece, a cable body is sleeved inside the nylon joint, a sealing layer is arranged on the outer side of the cable body, and a third sealing ring is arranged on the outer side of the nylon joint.

[0006] Preferably, the outer side of the guide post is adapted to the mating groove, the guide post and the mating groove are movably inserted, and the guide post is threadedly connected to the knurled joint through the threaded section and the threaded groove.

[0007] Preferably, a groove for placing the first sealing ring and the second sealing ring is opened inside the knurled joint.

[0008] Preferably, the first sealing ring is a rectangular sealing ring, and the first sealing ring is located between the guide post and the knurled joint.

[0009] Preferably, both the second sealing ring and the third sealing ring are O-shaped sealing rings, and the second sealing ring and the third sealing ring are located on both sides of the knurled joint.

[0010] Preferably, the nylon joint is movably inserted into the cable body through a circular through-hole. One side of the nylon joint is movably inserted into one end of the connecting piece. A sealing layer is sleeved outside the cable body, and the sealing layer is located between the guide post and the cable body.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By providing a guide post, a knurled joint, and a nylon joint, the O-ring seal II is sleeved in the groove of the guide post, the rectangular seal I is tightly sleeved on the optical axis of the guide post, and the O-ring seal III is placed outside the nylon joint. Through the knurled joint, spatial extrusion is formed with the guide post and the nylon joint. At the same time, the sealed space is filled with three seals to achieve multi-layer sealing, effectively improving the sealing effect at the brake cable joint and avoiding the problem that water enters the joint interior and affects the use of the cable.

[0013] 2. The present utility model also sleeved the knurled joint outside the nylon joint, and then fixed the nylon joint through the guide post. The guide post and the knurled joint are threadedly connected through the threaded section. Through the cooperation method between existing components, the installation and disassembly difficulty for the staff is effectively reduced, making the cable joint assembly convenient. At the same time, the complex mechanical connection structure is omitted, the structure is simple, and the adaptation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall structural schematic diagram of the present utility model;

[0015] Figure 2 is the overall structural sectional view of the present utility model;

[0016] Figure 3 is the structural schematic diagram of the guide post of the present utility model;

[0017] Figure 4 is the structural schematic diagram of the nylon joint of the present utility model;

[0018] Figure 5 is the structural schematic diagram of the knurled joint of the present utility model.

[0019] In the figure: 1. Guide post; 2. Threaded section; 3. Knurled joint; 4. Fitting groove; 5. Threaded groove; 6. Seal I; 7. Seal II; 8. Connecting piece; 9. Nylon joint; 10. Cable body; 11. Sealing layer; 12. Seal III. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-5 , the present invention provides a technical solution: a waterproof structure for an automobile brake cable joint, including a guide post 1, a threaded section 2 is arranged on the outer side of the guide post 1, a knurled joint 3 is sleeved on the outer side of the guide post 1, a circular fitting hole is opened inside the knurled joint 3, the knurled joint 3 is movably inserted into the outer side of the nylon joint 9 through the circular fitting hole, a fitting groove 4 is opened inside the knurled joint 3, the knurled joint 3 is adapted to the outer side of the guide post 1 through the notch, a threaded groove 5 is opened inside the knurled joint 3, a first sealing ring 6 is arranged on the outer side of the guide post 1, the first sealing ring 6 is located between the guide post 1 and the knurled joint 3, a second sealing ring 7 is arranged on the outer side of the guide post 1, a connecting piece 8 is arranged inside the guide post 1, a nylon joint 9 is arranged at one end of the connecting piece 8, a cable body 10 is sleeved inside the nylon joint 9, a sealing layer 11 is arranged on the outer side of the cable body 10, the sealing layer 11 is made of rubber material, and a third sealing ring 12 is arranged on the outer side of the nylon joint 9.

[0022] To ensure the convenient connection between the guide post 1 and the knurled joint 3, the outer side of the guide post 1 is adapted to the fitting groove 4, and the guide post 1 and the fitting groove 4 are movably inserted. By inserting the guide post 1 into one side of the fitting groove 4, while the guide post 1 and the nylon joint 9 are located on both sides of the fitting groove 4, the nylon joint 9 is movably inserted into the cable body 10 through a circular through hole inside the nylon joint 9, and one side of the nylon joint 9 is movably inserted into one end of the connecting piece 8. The nylon joint 9 is fixed inside the knurled joint 3 by the insertion of the connecting piece 8 and the nylon joint 9.

[0023] To reduce the connection effect between the guide post 1 and the knurled joint 3, the guide post 1 is threadedly connected to the knurled joint 3 through the threaded section 2 and the threaded groove 5. A groove body for placing the first sealing ring 6 and the second sealing ring 7 is opened inside the knurled joint 3, reducing the connection difficulty between the guide post 1 and the knurled joint 3 and effectively enhancing the sealing effect at the connection between the guide post 1 and the knurled joint 3.

[0024] To further enhance the connection effect, the first sealing ring 6 is a rectangular sealing ring, the first sealing ring 6 is located between the guide post 1 and the knurled joint 3, the second sealing ring 7 and the third sealing ring 12 are both O-shaped sealing rings, the second sealing ring 7 and the third sealing ring 12 are located on both sides of the knurled joint 3, a sealing layer 11 is sleeved on the outer side of the cable body 10, and the sealing layer 11 is located between the guide post 1 and the cable body 10.

[0025] Working principle: During use, the vehicle braking assembly and cable assembly are arranged on the vehicle chassis. The electronic parking brake assembly and cable assembly operate or are stationary in a harsh environment. The guide post 1 is sleeved outside the nylon joint 9, and then the connecting piece 8 is inserted into the matching groove on one side of the nylon joint 9, thereby fixing the nylon joint 9 inside the knurled joint 3. Rotate the knurled joint 3, and under the cooperation of the threaded section 2 and the threaded groove 5, the guide post 1 and the knurled joint 3 are connected and fixed, achieving overall installation and fixation, thus generating multiple installation and sealing points, enhancing the overall sealing effect. When water enters through the gap between the knurled joint 3 and the nylon joint 9, the sealing ring three 12 is radially compressed between the inner wall of the knurled joint 3 and the groove of the nylon joint 9, isolating the water from entering here. When water enters through the threaded connection between the knurled joint 3 and the guide post 1, the sealing ring one 6 is axially compressed in the first space formed between the knurled joint 3 and the guide post 1 to form the first layer of protection. After the first layer of protection fails, the sealing ring two 7 is radially compressed in the second space formed between the knurled joint 3 and the guide post 1 to form the second layer of protection, isolating the water from entering here, and achieving the sealing of the brake cable joint.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof structure for an automobile brake cable joint, including a guide post (1), characterized in that: A threaded section (2) is provided on the outer side of the guide post (1). A knurled joint (3) is sleeved on the outer side of the guide post (1). A mating groove (4) is formed inside the knurled joint (3). A threaded groove (5) is formed inside the knurled joint (3). A first sealing ring (6) is provided on the outer side of the guide post (1). A second sealing ring (7) is provided on the outer side of the guide post (1). A connecting member (8) is provided inside the guide post (1). A nylon joint (9) is provided at one end of the connecting member (8). A cable body (10) is sleeved inside the nylon joint (9). A sealing layer (11) is provided on the outer side of the cable body (10). A third sealing ring (12) is provided on the outer side of the nylon joint (9).

2. The waterproof structure of an automobile brake cable joint according to claim 1, characterized in that: The outer side of the guide post (1) is adapted to the mating groove (4), and the guide post (1) and the mating groove (4) are movably inserted into each other. The guide post (1) is threadedly connected to the knurled joint (3) through the threaded section (2) and the threaded groove (5).

3. The waterproof structure of an automotive brake cable joint according to claim 1, characterized in that: A groove for placing the first sealing ring (6) and the second sealing ring (7) is formed inside the knurled joint (3).

4. The waterproof structure of an automobile brake cable joint according to claim 1, characterized in that: The first sealing ring (6) is a rectangular sealing ring, and the first sealing ring (6) is located between the guide post (1) and the knurled joint (3).

5. The waterproof structure of an automobile brake cable joint according to claim 1, characterized in that: Both the second sealing ring (7) and the third sealing ring (12) are O-ring seals, and the second sealing ring (7) and the third sealing ring (12) are located on both sides of the knurled joint (3).

6. The waterproof structure of an automobile brake cable joint according to claim 1, characterized in that: The cable body (10) is movably inserted into the nylon joint (9) through a circular through hole inside the nylon joint (9). One side of the nylon joint (9) is movably inserted into one end of the connecting member (8). The sealing layer (11) is sleeved on the outer side of the cable body (10), and the sealing layer (11) is located between the guide post (1) and the cable body (10).

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