Protective sleeve for automobile wire harness connector
By incorporating elastic elements on both sides of the protective sleeve of the automotive wiring harness connector and utilizing a push plate for compression, the sleeve slippage problem is solved, resulting in better protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG STEED AUTOMOBILE COMPONENTS CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional circular automotive wiring harness connector protective sleeves tend to slip when fitted onto the outside of the automotive wiring harness connector, failing to effectively protect the internal connector.
First elastic elements are set on both sides of the cylinder, and the push plate is squeezed by tightening the outer ring plate to increase friction and make it fit tightly to prevent slippage.
It increases the friction between the automotive wiring harness connector and the protective sleeve, preventing slippage and protecting the stability of the internal connector.
Smart Images

Figure CN224233025U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a protective sleeve for automotive wiring harness connectors. Background Technology
[0002] Automotive wiring harness connector protective sleeves are important components used to protect automotive wiring harness connectors, ensuring their use in various harsh environments and driving conditions. This allows the wiring harness inserted inside the connector to function normally, ensuring smooth signal transmission during vehicle use. Currently, automotive wiring harness connector protective sleeves are mainly used in the engine compartment, chassis, door interiors, or trunk area along with the automotive wiring harness connectors. Their appearance is relatively diverse, including round, rectangular, square, and irregular shapes. The different shapes are mainly developed to adapt to the usage scenarios of automotive wiring harness connectors, making them an indispensable component.
[0003] Currently, when traditional round automotive wiring harness connector protective sleeves are fitted onto the outside of the automotive wiring harness connector, the sleeves, being hollow cylinders, are prone to slipping on the outside of the connector, failing to adequately protect the internal wiring harness connector. This issue needs improvement.
[0004] Therefore, it is necessary to invent a protective sleeve for automotive wiring harness connectors to solve the above problems. Utility Model Content
[0005] (a) Purpose of the utility model
[0006] To address the technical problems existing in the background art, this utility model proposes a protective sleeve for automotive wiring harness connectors. By setting a first elastic element on each side of the sleeve, and when the outer ring plate is tightened, the push plate can squeeze the first elastic element, making the automotive wiring harness connector fit more tightly, thereby increasing the friction between the first elastic element and the automotive wiring harness connector. This makes it less likely for the sleeve to slide on the outside of the automotive wiring harness connector, and can effectively protect the internal automotive wiring harness connector.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a protective sleeve for an automotive wiring harness connector, comprising a cylindrical body sleeved on the outside of the automotive wiring harness connector, with rings connected to both the left and right ends of the cylindrical body, an inner liner connected to the outer wall of the rings, and a first elastic element connected to the outer wall of the inner liner.
[0009] Two outer ring plates are respectively fitted on the outside of two inner lining plates. Each outer ring plate has a push plate connected to its inner wall that can compress the first elastic element to prevent the cylinder from sliding on the outside of the automotive wiring harness connector.
[0010] Preferably, the cylinder includes an inner layer, a middle layer sleeved outside the inner layer, and an outer layer sleeved outside the middle layer.
[0011] Preferably, the inner layer is an aluminum foil fiberglass layer, the middle layer is an aluminum-plated film layer, and the outer layer is a polyurethane layer.
[0012] Preferably, the first elastic element is a silicone ring, and the length of the inner liner is greater than the width of the first elastic element.
[0013] Preferably, the outer ring plate and the inner liner plate are threaded together, and the push plate is annular and adapted to the outer ring plate.
[0014] Preferably, the inner wall of the outer ring plate located at any end of the cylinder is further connected to a baffle, the baffle being annular and the inner wall of the baffle being connected to a second elastic element.
[0015] Preferably, the second elastic element is also configured as a silicone ring, and the inner ring of the second elastic element is configured as a funnel shape.
[0016] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are:
[0017] This invention provides a first elastic element on each side of the cylinder. When the outer ring plate is tightened, the push plate applies a lateral pressure to the first elastic element, which, together with the inner liner plate, clamps the first elastic element, causing it to deform and fit more tightly with the automotive wiring harness connector. This increases the friction between the first elastic element and the automotive wiring harness connector, making it less likely for the cylinder to slide outside the automotive wiring harness connector and effectively protecting the internal automotive wiring harness connector. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a half-sectional view of the present invention;
[0021] Figure 3 This is an exploded view of the sleeve and cylinder of this utility model;
[0022] Figure 4This is an exploded view of the ring body, push plate, and outer ring plate of this utility model.
[0023] Figure 5 This is a schematic diagram of the connection structure between this utility model and an automotive wiring harness connector.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Cylinder body; 11. Inner layer; 12. Middle layer; 13. Outer layer;
[0026] 2. Ring body, 3. Inner liner plate, 4. First elastic element, 5. Outer ring plate, 6. Push plate, 7. Baffle plate, 8. Second elastic element. Detailed Implementation
[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0028] This utility model provides, for example Figure 1-5 The protective sleeve for an automotive wiring harness connector shown includes a cylindrical body 1, which is sleeved on the outside of the automotive wiring harness connector. Both ends of the cylindrical body 1 are connected to ring bodies 2. An inner liner 3 is connected to the outer wall of the ring body 2, and a first elastic element 4 is connected to the outer wall of the inner liner 3.
[0029] Two outer ring plates 5 are respectively fitted on the outside of the two inner lining plates 3. Each outer ring plate 5 has a push plate 6 connected to its inner wall, which can compress the first elastic element 4 to prevent the cylinder 1 from sliding on the outside of the automotive wiring harness connector.
[0030] In one embodiment, the cylindrical body 1 includes an inner layer 11, a middle layer 12 sleeved on the outside of the inner layer 11, and an outer layer 13 sleeved on the outside of the middle layer 12. The inner layer 11 is an aluminum foil fiberglass layer, which combines the reflective properties of aluminum foil and the heat insulation properties of fiberglass to form a dual heat insulation mechanism, giving the inner layer 11 better heat insulation performance and better protecting the automotive wiring harness connector. The middle layer 12 is an aluminized film layer, which can assist the aluminum foil fiberglass layer in reflecting the heat from the automotive wiring harness connector outward, allowing the heat to dissipate quickly, thereby protecting the wiring harness inserted inside the automotive wiring harness connector and achieving heat insulation. The outer layer 13 is a polyurethane layer, which not only establishes good adhesion strength with the middle layer 12, but also has excellent wear resistance, oil resistance, flexibility, and low-temperature performance, making it well-suited for the automotive environment.
[0031] In one embodiment, the first elastic element 4 is a silicone ring, and the second elastic element 8 is also a silicone ring. The silicone ring can be used for a long time without hardening or cracking, and can withstand high temperatures of 300 degrees Celsius. It can withstand even higher temperatures in the short term and can be adapted to be used in various parts of the car wiring harness connector protective sleeve. The silicone ring has good flexibility and can quickly recover its deformation as the push plate 6 moves away after being squeezed, thus facilitating subsequent use. The length of the inner liner 3 is greater than the width of the first elastic element 4, ensuring that the push plate 6 can squeeze the first elastic element 4 when the outer ring plate 5 is screwed in.
[0032] In one embodiment, the outer ring plate 5 and the inner liner plate 3 are connected by threads, and the push plate 6 is annular and adapted to the outer ring plate 5, so that the outer ring plate 5 can be freely disassembled and assembled with the cylinder 1, and the disassembly and assembly method is simple and convenient, which is conducive to the operation of the staff.
[0033] In one embodiment, the inner wall of the outer ring plate 5 located at any end of the cylinder 1 is also connected to a baffle 7, which can fit tightly with the end of the automotive wiring harness connector to improve the connection quality with the automotive wiring harness connector. The baffle 7 is set as an annular shape, and the inner wall of the baffle 7 is connected to a second elastic member 8, and the inner ring of the second elastic member 8 is set as a funnel shape to facilitate the wiring harness to pass through the inside of the automotive wiring harness connector.
[0034] The specific implementation method is as follows: as shown in the appendix. Figure 5 As shown in the attached figure, reference numeral 9 represents the automotive wiring harness connector, and the inner liner plate 3 is also annular, with matching threads on its outer side and the inner side of the outer ring plate 5. In use, the operator places the cylinder 1 and the two outer ring plates 5 onto the outside of the automotive wiring harness connector, ensuring that the outer ring plate 5, which houses the push plate 6, corresponds to the outlet end of the automotive wiring harness connector, thus ensuring that the wiring harness passes through the second elastic element 8. Specifically:
[0035] The operator first screws the outer ring plate 5 onto the outside of the inner liner plate 3. During this process, as the outer ring plate 5 is screwed in, the push plate 6 will gradually move towards the cylinder 1 along with the outer ring plate 5. When the outer ring plate 5 contacts the ring 2, the push plate 6 will apply a lateral pressure to the first elastic member 4, thereby clamping the first elastic member 4 together with the inner liner plate 3. At this time, the first elastic member 4 will deform due to compression. The outer side, inner side, and left and right sides of the first elastic member 4 are blocked by the baffle 7, the automotive wiring harness connector, the inner liner plate 3, and the push plate 6, respectively. Therefore, when the first elastic member 4 deforms, it will fit tightly with the baffle 7, the automotive wiring harness connector, the inner liner plate 3, and the push plate 6. That is, the friction between the first elastic member 4 and the automotive wiring harness connector is greatly increased. The first elastic member 4 will not easily slide on the outside of the automotive wiring harness connector, thereby preventing the cylinder 1 from easily sliding on the outside of the automotive wiring harness connector, which can effectively protect the automotive wiring harness connector inside.
[0036] Furthermore, when the wire harness is passed through, the elastic force of the second elastic element 8 itself can squeeze the wire harness inside, which acts as a clamping effect, so that the wire harness can be firmly inserted into the automotive wire harness connector, effectively reducing the loosening of the wire harness, preventing the wire harness from swinging randomly inside the automotive wire harness connector, and improving the stability of the wire harness insertion.
[0037] This embodiment specifically addresses the problem that in the prior art, when a traditional circular protective sleeve for automotive wiring harness connectors is fitted onto the outside of the connector, both of which are hollow cylinders, the protective sleeve is prone to sliding on the outside of the connector, thus failing to adequately protect the internal automotive wiring harness connector. This is a problem that needs to be improved.
[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A protective sleeve for an automotive wiring harness connector, characterized in that: Includes a cylindrical body (1), which is sleeved on the outside of the automotive wiring harness connector. Both ends of the cylindrical body (1) are connected to ring bodies (2). The outer wall of the ring body (2) is connected to an inner liner plate (3). The outer wall of the inner liner plate (3) is connected to a first elastic element (4). Two outer ring plates (5) are respectively fitted on the outside of two inner lining plates (3). Each outer ring plate (5) has a push plate (6) connected to its inner wall, which can compress the first elastic element (4) to prevent the cylinder (1) from sliding on the outside of the automotive wiring harness connector.
2. The protective sleeve for an automotive wiring harness connector according to claim 1, characterized in that: The cylinder (1) includes an inner layer (11), a middle layer (12) sleeved on the outside of the inner layer (11), and an outer layer (13) sleeved on the outside of the middle layer (12).
3. The protective sleeve for an automotive wiring harness connector according to claim 2, characterized in that: The inner layer (11) is an aluminum foil fiberglass layer, the middle layer (12) is an aluminum-plated film layer, and the outer layer (13) is a polyurethane layer.
4. The protective sleeve for an automotive wiring harness connector according to claim 1, characterized in that: The first elastic element (4) is configured as a silicone ring, and the length of the inner liner (3) is greater than the width of the first elastic element (4).
5. The protective sleeve for an automotive wiring harness connector according to claim 1, characterized in that: The outer ring plate (5) and the inner liner plate (3) are connected by threads, and the push plate (6) is annular and adapted to the outer ring plate (5).
6. The protective sleeve for an automotive wiring harness connector according to claim 1, characterized in that: in, A baffle (7) is also connected to the inner wall of the outer ring plate (5) located at any end of the cylinder (1). The baffle (7) is set as an annular shape, and a second elastic element (8) is connected to the inner wall of the baffle (7).
7. A protective sleeve for an automotive wiring harness connector according to claim 6, characterized in that: The second elastic element (8) is also configured as a silicone ring, and the inner ring of the second elastic element (8) is configured as a funnel shape.