Double-hardness spline protective sleeve for automobile wire harness
By designing a dual-hardness spline protective sleeve, combined with the design of a ring spline and a connector, the problems of high cost and wear-induced short circuit risk of traditional wire harness fixing are solved, achieving low-cost, high-efficiency wire harness fixing and anti-slip effect.
Patent Information
- Application Number
- CN202423141180.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Traditional automotive wiring harness fixing methods are costly and pose a risk of wear and short circuits, and existing products are prone to wear under vibration.
The dual-hardness spline protective sleeve adopts a design of annular spline and butt joint, combined with track-type concave-convex structure and wear-resistant coating to achieve tight clamping and locking of wire harness. It utilizes low-hardness annular spline deformation clamping, high-hardness butt joint and mating groove locking, combined with rubber integral molding.
It achieves low-cost and efficient wire harness fixing, prevents rotation and slippage, adapts to various working environments, reduces wear risk, and improves assembly convenience.
Smart Images

Figure CN223567248U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile wire harness fixing, in particular to a double-hardness spline protective sleeve for automobile wire harness. BACKGROUND
[0002] The double-hardness spline protective sleeve for automobile wire harness refers to a protective sleeve used at the wiring position of wire harness and vehicle body during the wiring of automobile wire harness through the sheet metal of vehicle body, so as to ensure the performance requirements such as good wire harness layout and no interference with the surrounding. The space requirement of automobile wire harness for the vehicle body is relatively complex due to the shuttling of automobile wire harness between the joints of vehicle body. In the traditional design, a plastic wire protection box or a combination product such as a plastic clamp plus a rubber hoop is generally used. This structure requires the use of high-quality accessories such as adhesive tape and cable ties for wire harness assembly, and has a high cost. In the later period, vibration may cause wear and short circuit risk. SUMMARY
[0003] In view of the above problems, the utility model provides a double-hardness spline protective sleeve for automobile wire harness, which can limit the wire harness layout to a certain extent, achieve ideal protection of automobile wire harness and vehicle body, and has a low-cost rubber body.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a double-hardness spline protective sleeve for automobile wire harness, comprising an annular spline, one end of the annular spline is provided with a butt joint, the other end of the annular spline is provided with a butt joint groove, a plurality of track type concave-convex structures are arranged on the annular spline, the concave-convex structures are located between the butt joint and the butt joint groove, a clamping buckle is fixed on the butt joint, a through hole is formed in the center of the clamping buckle, a clamping groove is formed in the butt joint groove, a chamfer is arranged at the upper end of the clamping groove, the concave-convex structures comprise convex blocks and concave grooves, the convex blocks and the concave grooves are arranged alternately, the convex blocks and the concave grooves form a track type, and the clamping buckle and the clamping groove are in the shape of an arrow.
[0005] Preferably, a gap capacity is designed between the butt joint and the butt joint groove.
[0006] Preferably, the surfaces of the annular spline, the butt joint, the butt joint groove and the concave-convex structures are coated with a wear-resistant, slip-resistant, high-temperature-resistant and corrosion-resistant coating.
[0007] Preferably, the annular spline, the butt joint, the butt joint groove and the concave-convex structures are integrally formed of rubber.
[0008] Compared with the prior art, the utility model has the following advantages:
[0009] 1. The utility model discloses a ring spline can be bent into a ring part to tighten the wire harness, and the joint is matched with the butt joint groove to be locked, and the structure is compact, reasonable and convenient to operate, the two different hardness materials are fused on the same product by adopting integrated molding, the ring spline of low hardness is used for deforming and tightening the wire harness, the joint of high hardness is locked with the butt joint groove, the convenient effectiveness of product assembly is improved, the cost is low, and it has very strong practicality, the ring spline on the rubber body is matched with the wire harness of the automobile to go to the tight restriction, and the protection and fixing effect are formed, the joint and the butt joint groove on the rubber body are assembled and locked as a whole.
[0010] 2. The ring spline is provided with a plurality of track type concave-convex structures and can be deformed to prevent the wire harness from slipping, rotating and sliding, the joint is designed with a clamping buckle to facilitate insertion into the butt joint groove, the joint and the butt joint groove are designed with a gap capacity, which is beneficial to product assembly and feedback, the insertion head part of the joint can be provided with a hollow structure or a solid structure according to the customer, so as to facilitate the assembly of the clamping force, the surface of the whole rubber body is provided with a wear-resistant, anti-skid, high-temperature-resistant and corrosion-resistant plating layer, so that the product can be normally and stably used in a wider high-low temperature environment, different liquid working conditions and the like. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is the whole structure schematic view of the utility model;
[0012] Figure 2 It is the front view schematic view of the utility model.
[0013] The figure mark explanation: 1, ring spline; 2, joint; 3, butt joint groove; 4, concave-convex structure; 5, clamping buckle; 6, through hole; 7, clamping groove; 8, chamfer; 41, lug; 42, recess. DETAILED DESCRIPTION
[0014] The embodiment of the utility model will be further described in detail in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0015] Please refer to Figure 1 and Figure 2A kind of double-hardness spline protective sleeve for automobile wire harness, including annular spline 1, the one end of the annular spline 1 is equipped with butt joint 2, the other end of the annular spline 1 is equipped with butt joint groove 3, by annular spline 1 can be bent into annular component and wire harness is carried out tight hoop, and butt joint 2 and butt joint groove 3 cooperate and carry out buckling locking, and the structure is compact, reasonable, convenient to operate, the annular spline 1 is equipped with multiple track type concave-convex structure 4, the concave-convex structure 4 is located between butt joint 2, butt joint groove 3, the concave-convex structure 4 includes protruding block 41 and recess 42, the protruding block 41 and recess 42 are alternately arranged, the protruding block 41 and recess 42 form track type, the annular spline 1 on the rubber body and automobile wire harness carry out the tight hoop restriction of going, play a protective and fixed role, the butt joint 2 and butt joint groove 3 on the rubber body are assembled and are locked as a whole, the annular spline 1 is equipped with multiple track type concave-convex structure 4 and can be deformed to prevent wire harness from slipping and prevent rotation and sliding, the butt joint 2 is fixed with clamping buckle 5, the central of the clamping buckle 5 is provided with through-hole 6, the butt joint 2 and butt joint groove 3 are designed with gap capacity, by the clamping buckle 5 designed in the butt joint 2 is beneficial to be inserted into butt joint groove 3, the butt joint 2 and butt joint groove 3 are designed with gap capacity, can be beneficial to product loading, have assembled in place feedback, the insertion head part inside the butt joint 2 can be hollow structure or solid structure according to customer setting, facilitate the assembly of the fitting buckling force, the butt joint groove 3 is provided with clamping groove 7, the upper end of the clamping groove 7 is provided with chamfer 8, the clamping buckle 5 and clamping groove 7 are arrow-shaped, the clamping buckle 5 is set as arrow-shaped, when the clamping buckle 5 is clamped in clamping groove 7, the clamping buckle 5 of arrow plays a guiding role, the clamping buckle 5 is clamped in clamping groove 7, while there is chamfer 8 on the upper end of clamping groove 7, when the clamping buckle 5 is clamped in clamping groove 7, it is convenient to guide and position the clamping buckle 5, so that the clamping buckle 5 is clamped in clamping groove 7, and the clamping of the butt joint 2 and butt joint groove 3 is fixed.
[0016] Please refer to Figure 1 And Figure 2 The surface of the annular spline 1, butt joint 2, butt joint groove 3 and concave-convex structure 4 adopts wear-resistant, anti-skid, high-temperature-resistant and corrosion-resistant plating layer, and the surface of the entire rubber body adopts wear-resistant, anti-skid, high-temperature-resistant and corrosion-resistant plating layer, so that the product can be normally and stably used in a wider high-low temperature environment, different liquid and other working conditions, the annular spline 1, butt joint 2, butt joint groove 3 and concave-convex structure 4 are integrally formed by rubber, the two materials with different hardness are fused on the same product by integrally forming, the annular spline 1 with low hardness is used for deforming and tightly hooping wire harness, the butt joint 2 and butt joint groove 3 with high hardness are clamped and locked, which improves the convenience and effectiveness of product assembly, has low cost and strong practicability.
[0017] The utility model uses when:
[0018] The low-hardness annular spline 1 on the rubber body is bent into an annular part, and the wire harness is tightly fitted and contained therein, the high-hardness butt joint 2 is buckled and locked with the high-hardness butt joint groove 3, the clamping buckle 5 is clamped in the clamping groove 7, the chamfer 8 guides and positions the clamping buckle 5, the clamping buckle 5 is smoothly clamped in the clamping groove 7, the clamping and fixing of the butt joint 2 and the butt joint groove 3 are completed, and then the fixing of the wire harness is realized, and the plurality of track type concave-convex structures 4 can be deformed to prevent the wire harness from slipping and tightly fitting, and prevent the wire harness from rotating and sliding.
[0019] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A dual durometer spline boot for an automotive wire harness, characterized by: The utility model relates to a ring spline (1) is provided with the butt joint (2) one end of ring spline (1), the other end of ring spline (1) is provided with butt joint groove (3), be equipped with a plurality of track type concave-convex structure (4) on ring spline (1), concave-convex structure (4) is located between butt joint (2), butt joint groove (3), the butt joint (2) is fixed with the clamping buckle (5), the central opening of clamping buckle (5) is provided with through -hole (6), the butt joint groove (3) is provided with clamping groove (7), the upper end of clamping groove (7) is provided with chamfer (8), concave-convex structure (4) includes protruding block (41) and recess (42), protruding block (41) and recess (42) are alternately arranged, protruding block (41) and recess (42) form track type, clamping buckle (5) and clamping groove (7) are arrowhead shape.
2. The dual durometer spline boot for an automotive wire harness of claim 1, wherein: The gap capacity is designed between the butt joint (2) and the butt joint groove (3).
3. The dual durometer spline boot for an automotive wire harness of claim 1, wherein: The surfaces of the ring spline (1), the butt joint (2), the butt joint groove (3) and the concave-convex structure (4) are plated with wear-resistant, anti-skid, high-temperature-resistant and corrosion-resistant coating.
4. The dual durometer spline boot for an automotive wire harness of claim 1, wherein: The ring spline (1), the butt joint (2), the butt joint groove (3) and the concave-convex structure (4) are integrally formed with rubber.