Electronic wire harness with protective sleeve and long service life
By using an insulating rigid protective sleeve, waist groove, and roller structure in the electronic wire harness, combined with tension springs and positioning screws, the wire harness length can be adaptively adjusted and stably connected, solving the problems of wire harness scrambling and terminal detachment, and improving service life and neatness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUHUIDA (HUAIAN) TECHNOLOGY CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-19
AI Technical Summary
Existing electronic wire harnesses have shortcomings in length adjustment and connection stability, leading to problems such as wire harness tangling or terminal detachment.
It adopts an insulated rigid protective sleeve with an internal waist groove and roller structure. Combined with tension springs and positioning screws, it can realize adaptive adjustment of the wire harness length and protect the connection between the wire and the terminal through the bellows tube to ensure stable connection.
It improves the lifespan and connection stability of the wiring harness, prevents the harness from becoming tangled, and enhances the neat arrangement of electrical equipment.
Smart Images

Figure CN224264426U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic wire harness technology, specifically to an electronic wire harness with a protective sleeve and a long service life. Background Technology
[0002] Electronic wire harnesses are wiring components used in various circuits to connect electrical devices. They consist of insulating sheaths, terminals, wires, and insulating wrapping materials. Currently, each type of electronic wire harness has a rated length. When put into use, the length of the rated length will affect the wiring. For example, if the wire harness length is too much greater than the distance between two electrical devices, the wire harness will become tangled. Conversely, if the wire harness length is matched to the distance between the two electrical devices, a section of the terminal may become detached due to pulling or shaking during the wiring process, or the wire may become detached from the end. In summary, the wire harness has poor adaptability in application scenarios.
[0003] Therefore, in order to correct the above-mentioned defects, we propose an electronic wire harness with a protective sleeve and a long service life. Utility Model Content
[0004] The technical problem solved by this utility model is to provide an electronic wire harness with a protective sleeve and a long service life.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a long-life electronic wire harness with a protective sleeve, comprising two terminals and several wires connected between the two terminals, and a long rectangular rigid protective sleeve. Both ends of the rigid protective sleeve are provided with wire openings. The two ends of several wires extend from the wire openings on both sides of the rigid protective sleeve and connect to the two terminals. The front and back of the rigid protective sleeve are provided with two waist grooves. The waist grooves on the same surface are distributed in a stepped manner. A roller slides between the two waist grooves on the same level. After being redirected by the two rollers, the several wires are distributed in an "S" shape inside the rigid protective sleeve. The two rollers are respectively connected to the inner end of the rigid protective sleeve by tension springs.
[0006] Furthermore, a positioning screw is slidably connected within the waist groove, and a nut is connected to the end of the positioning screw extending from the waist groove.
[0007] Furthermore, the end of the tension spring is connected to the roller body via a collar, which is loosely fitted onto the roller body.
[0008] Furthermore, an organ tube is installed around the wire openings at both ends of the rigid protective sleeve. Several wires pass through the organ tube. An end ring is fixed at the end of the organ tube facing the terminal. A insert is provided at the end of the end ring facing the terminal. A slot for inserting the insert is provided on the side of the terminal facing the end ring.
[0009] Furthermore, each end of the roller body extending through the waist groove is connected to a limiting collar.
[0010] Furthermore, the rigid protective sleeve is composed of two modules, left and right.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the insulating rigid protective sleeve used in the electronic wire harness of this utility model allows the length of the wire harness to be adaptively adjusted, preventing the wires and terminals from falling off due to external forces, thus improving the service life of the wire harness. Moreover, when multiple wire harnesses are used between electrical devices, the rigid protective sleeve on each wire harness allows the multiple wire harnesses to be arranged in an orderly manner and will not be scattered in the space. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the wire harness structure in this utility model;
[0013] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the main sectional view of this utility model;
[0015] Figure 4 This is a top-view cross-sectional view of the rigid protective sleeve in this utility model;
[0016] Figure 5 This is a top view of the rigid protective sleeve in this utility model.
[0017] Numbering on the map:
[0018] 1. Terminal; 2. Wire; 3. Rigid protective sleeve; 4. Groove; 5. Roller; 6. Positioning screw; 7. Tension spring; 8. Collar; 9. Organ tube; 10. Fixed end ring; 11. Insert. Detailed Implementation
[0019] 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.
[0020] This utility model provides a technical solution:
[0021] Please see Figure 1-5An electronic wire harness with a long service life and a protective sleeve includes two terminals 1 and several wires 2 connected between the two terminals 1. It also includes a long rectangular rigid protective sleeve 3. The rigid protective sleeve 3 is made of insulating material. Both ends of the rigid protective sleeve 3 are provided with wire openings. The two ends of the several wires 2 extend from the wire openings on both sides of the rigid protective sleeve 3 and are connected to the two terminals 1. The front and back of the rigid protective sleeve 3 are provided with two waist grooves 4. The waist grooves on the same surface are distributed in a stepped manner. A roller 5 slides between the two waist grooves 4 on the same level. The several wires 2 are redirected by the two rollers 5 and are distributed in an "S" shape inside the rigid protective sleeve 3. The two rollers 5 are respectively connected to the inner end of the rigid protective sleeve 3 by tension springs 7.
[0022] In the above, when the two rollers 5 are closest to each other, the length of the wire harness can be stretched to its maximum. When the two rollers 5 are farthest apart, the length of the wire harness can be shortened to its minimum. During operation, when the two ends of the wire harness are pulled, the two rollers 5 are pulled closer to each other by the tension brought by the wire harness, and the length of the wire harness will be extended. When the two ends of the wire harness stop being pulled, the two rollers 5 are separated from each other by the reaction force of the tension spring 7, and the length of the wire harness will be shortened.
[0023] To control the extent of length reduction, a positioning structure needs to be added. Specifically, a positioning screw 6 is slidably connected inside the waist groove 4. A nut is connected to the end of the positioning screw 6 extending from inside the waist groove 4. That is, the positioning screw 6 can slide inside the waist groove 4. After adjusting to a suitable distance, the nut is tightened, and the positioning screw 6 is fixed in one position, thus forming a positioning.
[0024] In the above, the end of the tension spring 7 is connected to the roller body 5 through the collar 8. The collar 8 is loosely fitted on the roller body 5, and the ends of the roller body 5 that pass through the waist groove 4 are all connected to limit collars. The rigid protective sleeve 3 is composed of two modules, left and right, in order to allow the protective sleeve and internal structure to be disassembled and assembled. The connection between the left and right modules of the rigid protective sleeve 3 can be made by inserting blocks or holes.
[0025] When multiple wires are used in a wiring harness, the connection points between the wires and the terminals are exposed, making them prone to detachment and damage. To address this, a protective cover is installed at this point. Specifically, a bellows tube 9 is installed around the wire openings at both ends of the rigid protective sleeve 3. Several wires 2 pass through the bellows tube 9. An end ring 10 is fixed to the end of the bellows tube 9 facing the terminal 1. An insert 11 is provided at the end of the end ring 10 facing the terminal 1. The side of the terminal 1 facing the end ring 10 has a slot for inserting the insert 11. The length of the bellows tube 9 can be varied. After the wires are connected, the end ring 10 can be pulled to insert the insert 11 into the terminal. In this way, the connection point between the wires and the terminal will be covered by the bellows tube 9.
[0026] The length of the rigid protective sleeve 3 can be set according to requirements, its width can be slightly larger than the length of multiple wires in parallel, and its height can be 4-5 times the diameter of the wire.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A long-life electronic wire harness with a protective sheath, comprising two terminals (1) and a plurality of wires (2) connected between the two terminals (1), characterized in that: It also includes a long rectangular rigid protective sleeve (3), both ends of which are provided with wire openings. The two ends of several wires (2) extend from the wire openings on both sides of the rigid protective sleeve (3) and are connected to two terminals (1). The front and back of the rigid protective sleeve (3) are provided with two waist grooves (4). The waist grooves on the same surface are distributed in a stepped manner. A roller (5) slides between the two waist grooves (4) on the same level. Several wires (2) are redirected by the two rollers (5) and are distributed in an "S" shape inside the rigid protective sleeve (3). The two rollers (5) are connected to the inner end of the rigid protective sleeve (3) by tension springs (7).
2. The long-service-life electronic wire harness with a protective sleeve according to claim 1, characterized in that: A positioning screw (6) is slidably connected inside the waist groove (4), and a nut is connected to the end of the positioning screw (6) extending out from inside the waist groove (4).
3. The long-service-life electronic wire harness with a protective sleeve according to claim 1, characterized in that: The end of the tension spring (7) is connected to the roller body (5) through a collar (8), and the collar (8) is loosely fitted on the roller body (5).
4. The long-service-life electronic wire harness with a protective sleeve according to claim 1, characterized in that: A bellows tube (9) is installed around the wire openings at both ends of the rigid protective sleeve (3). Several wires (2) pass through the bellows tube (9). An end ring (10) is fixed at the end of the bellows tube (9) facing the terminal (1). A insert (11) is provided at the end of the end ring (10) facing the terminal (1). A slot for inserting the insert (11) is provided on the side of the terminal (1) facing the end ring (10).
5. The long-service-life electronic wire harness with a protective sleeve according to claim 1, characterized in that: Each end of the roller body (5) that extends through the waist groove (4) is connected to a limiting collar.
6. The long-service-life electronic wire harness with a protective sleeve according to claim 1, characterized in that: The rigid protective sleeve (3) is composed of two modules, left and right.