Anti-distortion wire harness group

By combining a protective sheath, a connecting rod, and a flexible sleeve, the problem of loosening of the wire harness under torsional force is solved, the torsion resistance is improved, and damage to the wires is avoided.

CN223624759UActive Publication Date: 2025-12-02CHANGZHOU HAOQUAN ELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202520271877.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2025-12-02
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

The existing wire harness assembly cannot effectively disperse when subjected to torsional force, resulting in loosening or detachment of the connection, which in turn leads to the scrapping of the wire harness assembly.

Method used

The combination structure of protective shell, docking rod, flexible sleeve and rigid support ring is adopted. The twist resistance of the wire harness is enhanced by the snap-fit ​​between the docking rod and the docking seat and the buffer of the rubber sleeve.

Benefits of technology

It effectively resists torsional forces, prevents wire damage, and improves the overall strength and torsion resistance of the wire harness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of wire harness groups, in particular to an anti-distortion wire harness group, a connector is connected with a wire to form the wire harness group, one side of the connector is connected with a protective sleeve shell in an inserted manner through a pair of butt joint rods, and the protective sleeve shell is sleeved outside the wire. According to the utility model, the protective sleeve shell is assembled on the wire harness group through mutual clamping of the butt joint seat and the butt joint rod, the hard support ring, the flexible sleeve and other components are arranged in the protective sleeve shell to improve the stress buffer effect, and when the wire harness group is subjected to twisting force, the generated stress is effectively resisted and supported through the butt joint rod and the hard support ring, so that the wire harness group is prevented from being twisted. And components such as the rubber sleeve and the flexible sleeve are used for diverging and buffering, so that the distortion resistance of the wire harness group is effectively improved, and the wire is prevented from being damaged.
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Description

Technical Field

[0001] This utility model relates to the field of wire harness technology, and in particular to a twist-resistant wire harness. Background Technology

[0002] A wire harness is an electrical connection assembly formed by bundling multiple wires or cables together according to certain rules.

[0003] In existing technologies, some wire harnesses are constrained and protected by braided sleeves, tapes, etc. In practical applications, traditional wire harnesses cannot effectively disperse or resist torsional forces. When twisted for a long time or under excessive torsional force, the connection between the wire harness and the connector may loosen or fall off, resulting in the scrapping of the entire wire harness. Therefore, there is an urgent need for a torsion-resistant wire harness. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a twist-resistant wire harness assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A twist-resistant wire harness assembly includes a connector and a wire. The connector and the wire are connected to form a wire harness assembly. One side of the connector is connected to a protective housing through a pair of mating rods. The protective housing is fitted over the outside of the wire.

[0007] The protective sleeve has docking seats installed symmetrically on both sides of the docking rod. The inner wall of the docking seat has a docking groove to engage the docking rod, and a protruding ring is provided on one side of the docking groove to limit and engage the docking rod.

[0008] The protective casing is internally fitted with a flexible sleeve that fits snugly against the outside of the wire. A pair of rigid support rings are installed between the flexible sleeve and the protective casing.

[0009] In addition, a preferred structure is that one end of the connecting rod is provided with a ball head, and the side away from the ball head is provided with an annular groove, which engages with the convex ring.

[0010] In addition, a preferred structure is that the inner wall of the docking groove is provided with a rubber sleeve, and the rubber sleeve is in extrusive contact with the outer wall of the docking rod.

[0011] In addition, a preferred structure is that the inner wall of the protective shell is symmetrically provided with slots on both sides, and the slots are engaged with the rigid support ring by locking blocks.

[0012] In addition, a preferred structure is that the outer walls of the rigid support ring are provided with locking blocks on both sides to engage with the locking grooves, and the top and bottom walls of the rigid support ring are recessed inward to clamp the flexible sleeve.

[0013] Furthermore, in a preferred configuration, the rigid support rings are respectively disposed at the two ends of the protective casing.

[0014] The beneficial effects of this utility model are as follows:

[0015] In this invention, the protective sleeve is assembled onto the wire harness assembly by interlocking with the docking seat and docking rod. The interior of the protective sleeve is equipped with components such as a rigid support ring and a flexible sleeve to improve the stress buffering effect. When the wire harness assembly is subjected to torsional force, the stress generated is effectively resisted and supported by the docking rod and the rigid support ring, and dispersed and buffered by components such as the rubber sleeve and the flexible sleeve, effectively improving the torsion resistance of the wire harness assembly and preventing damage to the wires. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of an anti-torsion wire harness according to the present invention.

[0017] Figure 2 This is a schematic diagram of the structure at point A proposed in this utility model;

[0018] Figure 3 This is an exploded view of the internal structure of the protective casing proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the connecting rod connection structure proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the protective casing proposed in this utility model.

[0021] In the diagram: 1. Connector; 2. Wire; 3. Protective housing; 31. Slot; 4. Connecting rod; 41. Ball head; 42. Annular groove; 5. Connecting seat; 51. Connecting groove; 52. Protruding ring; 6. Flexible sleeve; 7. Rigid support ring; 71. Locking block; 8. Rubber sleeve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-5 A twist-resistant wire harness assembly includes a connector 1 and a wire 2. The connector 1 and the wire 2 are connected to form a wire harness assembly. One side of the connector 1 is connected to a protective sleeve 3 through a pair of mating rods 4. The protective sleeve 3 is fitted over the outside of the wire 2.

[0024] Furthermore, the protective casing 3 is symmetrically equipped with docking seats 5 on both sides of the docking rod 4. The inner wall of the docking seat 5 is provided with a docking groove 51 to engage the docking rod 4, and a protruding ring 52 is provided on one side of the inner wall of the docking groove 51 to limit and engage the docking rod 4.

[0025] Furthermore, a flexible sleeve 6 is installed inside the protective housing 3 for limiting the movement of the wire 2. The flexible sleeve 6 is fitted and sleeved on the outside of the wire 2, and a pair of rigid support rings 7 are installed between the flexible sleeve 6 and the protective housing 3.

[0026] One end of the connecting rod 4 is provided with a ball head 41, and the side away from the ball head 41 is provided with an annular groove 42. The annular groove 42 is engaged with the convex ring 52, and the convex ring 52 restricts the displacement of the connecting rod 4.

[0027] The inner wall of the docking groove 51 is provided with a rubber sleeve 8. The rubber sleeve 8 is in pressure contact with the outer wall of the docking rod 4, thereby improving the connection tightness of the docking rod 4. The rubber sleeve 8 can also provide a certain stress buffering effect.

[0028] The inner wall of the protective sleeve 3 is symmetrically provided with slots 31 on both sides. The slots 31 are clamped to the rigid support ring 7 by the locking blocks 71. The outer wall of the rigid support ring 7 is provided with locking blocks 71 on both sides to engage with the slots 31. The top and bottom walls of the rigid support ring 7 are recessed inward to hold the flexible sleeve 6, thereby improving the tightness of the connection with the flexible sleeve 6 and the wire 2.

[0029] In this embodiment, the protective sleeve 3 is connected by the connecting rod 4 and the connecting seat 5. The strength and support of the connecting rod 4 on both sides can effectively support and resist the stress generated by torsion. At the same time, a rubber sleeve 8 is provided at the connection between the connecting rod 4 and the connecting seat 5 to provide a certain buffering effect, thereby improving the overall strength and anti-torsion performance of the connection between the wire 2 and the connector 1.

[0030] A flexible sleeve 6 is fitted on the outer wall of the wire 2, and the outer wall of the flexible sleeve 6 is constrained and supported by a pair of rigid support rings 7. When subjected to torsional force, the flexible sleeve 6 provides a certain buffering effect through its flexibility. Under the support of the rigid support rings 7, it works with the connecting rod 4 to resist torsional stress and avoid excessive twisting.

[0031] In practical application, when the ball head 41 is inserted into the docking groove 51, it presses against and passes through the convex ring 52, so that the convex ring 52 fits into the annular groove 42. The ball head 41 is then limited to the cavity on the side away from the convex ring 52. The interlocking structure prevents the docking rod 4 from falling off, i.e., the protective sleeve 3 from falling off.

[0032] The rigid support ring 7 is securely fastened to the inner wall of the protective casing 3 via the slot 31.

[0033] It is worth noting that the flexible sleeve 6 can be made of flexible materials commonly used in the field, such as polyethylene, polyvinyl chloride, and rubber. Those skilled in the art can configure it according to actual applications, which will not be explained further.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A twist-resistant wire harness assembly, comprising a connector (1) and wires (2), characterized in that, The connector (1) is connected to the wire (2) to form a wire harness group. One side of the connector (1) is connected to the protective shell (3) by a pair of mating rods (4). The protective shell (3) is fitted over the outside of the wire (2). The protective sleeve (3) is symmetrically installed with docking seats (5) on both sides and docking rod (4). The inner wall of the docking seat (5) is provided with docking groove (51) to engage the docking rod (4), and a protruding ring (52) is provided on one side of the inner wall of the docking groove (51) to limit and engage the docking rod (4). The protective housing (3) is internally limited by a flexible sleeve (6), which fits snugly against the outside of the wire (2), and a pair of rigid support rings (7) are installed between the flexible sleeve (6) and the protective housing (3).

2. The anti-torsion wire harness assembly according to claim 1, characterized in that, One end of the connecting rod (4) is provided with a ball head (41), and the side away from the ball head (41) is provided with an annular groove (42), which engages with the convex ring (52).

3. The anti-torsion wire harness assembly according to claim 1, characterized in that, The inner wall of the docking groove (51) is provided with a rubber sleeve (8), and the rubber sleeve (8) is in contact with the outer wall of the docking rod (4).

4. The anti-torsion wire harness assembly according to claim 2, characterized in that, The inner wall of the protective sleeve (3) is symmetrically provided with slots (31), and the slots (31) are clamped to the rigid support ring (7) by the locking block (71).

5. A twist-resistant wire harness assembly according to claim 4, characterized in that, The rigid support ring (7) has locking blocks (71) on both sides of its outer wall to engage with the locking groove (31), and the top and bottom walls of the rigid support ring (7) are recessed inward to hold the flexible sleeve (6).

6. The anti-torsion wire harness assembly according to claim 1, characterized in that, The rigid support rings (7) are respectively installed at the two ends of the protective sleeve (3).