Wiring fixing structure for automobile transformation

By designing a wiring fixing structure that includes a fixing base, a lower bracket, an upper bracket, a snap-fit ​​end, and a locking component, the problems of insecure wiring harness fixing and cumbersome installation and disassembly are solved. This achieves stable fixing of the wiring harness and easy operation, improving the efficiency of automotive modification and the stability of the electrical system.

CN224159248UActive Publication Date: 2026-04-24FUJIAN DILUN AUTOMOBILE MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN DILUN AUTOMOBILE MANUFACTURING CO LTD
Filing Date
2025-06-19
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing wiring harness fixing structures used in automotive retrofitting suffer from problems such as insecure fixing, cumbersome installation and disassembly operations, leading to wiring harnesses easily loosening and falling off, affecting the stable operation of the electrical system, and resulting in low retrofitting efficiency.

Method used

The wiring harness is fixed by a structure consisting of a fixed base, a lower clamping base, an upper clamping base, a clamping end, and a locking component. The tight fit between the lower and upper clamping semicircles, combined with the reliable engagement of the clamping end and the locking component, ensures the secure fixing of the wiring harness. The hinge shaft enables easy installation and disassembly.

Benefits of technology

This ensures that the wiring harness does not loosen or fall off while the vehicle is in motion, simplifies the installation process, improves work efficiency, reduces manufacturing costs, and extends the service life of the wiring harness and electrical system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a wiring fixing structure for automobile transformation, which relates to the technical field of automobile interior and exterior decoration and comprises a fixing seat, a wiring fixing part and a wiring fixing part. The lower clamping seat is installed on the fixing seat, a lower clamping semicircle is arranged at the upper end of the middle of the lower clamping seat, a convex lug is arranged at the left end of the lower clamping seat, and a locking piece is arranged at the right end of the lower clamping seat; a hinge part is arranged at the left end of the upper clamping seat, a clamping end is arranged at the right end of the upper clamping seat, an upper clamping semicircle is arranged at the lower end of the middle of the upper clamping seat, and the hinge part is hinged to the lug; and when the clamping end is clamped with the locking piece, the wire harness is clamped between the upper clamping semicircle and the lower clamping semicircle. The fixing structure is firm in fixation and convenient to mount and dismount.
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Description

Technical Field

[0001] This utility model relates to the field of automotive interior and exterior design technology, specifically to a wiring fixing structure for automotive modification. Background Technology

[0002] In the field of automotive modification, the proper layout and securing of wiring harnesses is crucial. A large number of electrical wires exist inside a car, and these harnesses need to be arranged according to specific routes to avoid interference with other car components, while ensuring the stability and safety of electrical connections.

[0003] Traditional automotive wiring harness fixing methods often have many drawbacks. For example, some fixing structures use simple binding or clips, which are not only not secure enough, but also prone to loosening or even falling off during vehicle operation due to vibrations and bumps, thus affecting the normal operation of the electrical system and potentially causing safety accidents in severe cases.

[0004] Furthermore, some mounting structures are cumbersome to install and remove, requiring specialized tools and consuming significant time and manpower, thus reducing the efficiency of automotive modification. Moreover, these traditional mounting structures have poor adaptability to different wire harness specifications, making it difficult to meet the diverse wire harness mounting needs in automotive modifications.

[0005] Therefore, developing a wiring fixing structure for automotive modification that is structurally sound, securely fixed, and easy to install and disassemble is of great practical significance. Utility Model Content

[0006] In view of this, the present invention provides a wiring fixing structure for automotive modification to solve the following technical problems:

[0007] Existing wiring harness fixing structures used in automotive retrofitting suffer from problems such as insecure fixing, cumbersome installation and disassembly operations, leading to wiring harnesses easily loosening and falling off, affecting the stable operation of the electrical system, and low retrofitting efficiency.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A wiring and fixing structure for automotive modification includes:

[0010] A mounting bracket, which is fixedly connected to the vehicle body;

[0011] The lower card holder is mounted on the fixed base. The upper part of the middle of the lower card holder is provided with a lower locking semicircle. The left end of the lower card holder is provided with a lug and the right end is provided with a locking element.

[0012] The upper card holder has a hinge part at the left end, a carding end at the right end, and an upper carding semicircle at the lower middle part. The hinge part is hinged to the lug.

[0013] When the snap-fit ​​end snaps into the locking member, the wire harness is held between the upper snap-fit ​​semicircle and the lower snap-fit ​​semicircle.

[0014] Furthermore, the hinged part is hinged to the lug via a hinge shaft.

[0015] Furthermore, the snap-fit ​​terminal includes:

[0016] A connecting seat, which is fixedly connected to the right end of the upper card seat;

[0017] A first conical shaft is connected to the lower end of the connecting seat;

[0018] The second conical shaft is connected to the lower end of the first conical shaft;

[0019] A guide cone, which is connected to the lower end of the second cone shaft.

[0020] Furthermore, the locking element includes:

[0021] Mounting plate, which is fixed to the bottom wall of the countersunk hole at the right end of the lower bracket by screws;

[0022] A pair of clamping springs are connected to the end of the mounting plate and abut against the first tapered shaft and the second tapered shaft.

[0023] Furthermore, a pair of clamping springs are symmetrically arranged on the mounting plate.

[0024] Furthermore, the clamping spring includes:

[0025] A first spring is connected to the end of the mounting plate;

[0026] The second spring is connected to the first spring and is inclined toward the second conical shaft, and abuts against the second conical shaft;

[0027] The third reed is connected to the second reed and is inclined toward the first conical axis and abuts against the first conical axis.

[0028] Furthermore, the opening of the hinge portion transitions into the lug.

[0029] Furthermore, studs are welded onto the mounting base.

[0030] As can be seen from the above technical solution, the advantages of this utility model are:

[0031] 1. Securely Secure Wiring Harness: The tight fit between the lower and upper semi-circular clamping ends creates a stable clamping space for the wiring harness. Simultaneously, the reliable engagement of the clamping ends with the locking mechanism further enhances the securing effect. This dual-fixing mechanism ensures that the wiring harness maintains a stable position during vehicle operation, even in complex vibration and bumpy environments, effectively preventing problems such as loosening or detachment, and providing a solid guarantee for the stable operation of the vehicle's electrical system. For example, when driving on rugged mountain roads, the vehicle will be continuously subjected to strong bumps and impacts, but this wiring fixing structure can still firmly secure the wiring harness, preventing electrical connection interruptions or short circuits caused by harness movement, and ensuring the normal operation of critical electrical functions such as the vehicle's power system, lighting system, and signal system.

[0032] 2. Simplified Installation Process: The upper and lower clamps are flexibly connected via a hinge shaft, making wire harness installation extremely simple. Operators only need to open the upper clamp, place the wire harness into the lower clamp semicircle, and then close the upper clamp; the clamping end will automatically engage with the locking mechanism, eliminating the need for complex tools or cumbersome procedures. Compared to traditional wire harness fixing methods, this significantly reduces installation time and improves work efficiency. For example, in rapid modification phases on automotive production lines or when upgrading the electrical systems of vehicles in auto repair shops, this simplified installation method can significantly save labor and time costs.

[0033] 3. Convenient Disassembly and Maintenance: When it is necessary to inspect, repair, or replace the wiring harness, simply pull the upper bracket outwards by hand to disengage the locking end from the locking mechanism, and the upper bracket can be easily opened to remove the wiring harness. This convenient disassembly method avoids the difficulty of disassembling traditional fixed structures, reduces maintenance difficulty and cost, and improves maintenance efficiency. For example, when troubleshooting wiring harness faults, maintenance personnel can quickly open the wiring harness fixing structure to conduct a detailed inspection, promptly identify and repair problems, and reduce vehicle downtime due to faults.

[0034] 4. Reduced Manufacturing Costs: This wiring harness fixing structure employs a simple and rational structural design, using common and low-cost materials such as steel and plastics. The manufacturing process is also relatively simple, requiring no complex processing equipment or procedures. This results in lower manufacturing costs, which helps automakers and aftermarket modifiers control costs and improve the product's market competitiveness.

[0035] 5. Extended Service Life: Due to its secure and stable structure, this design effectively reduces damage to the wiring harness caused by loosening or wear, thereby extending the service life of the wiring harness and the entire electrical system. This not only reduces vehicle operating costs but also minimizes downtime and economic losses caused by frequent wiring harness replacements and electrical system repairs, improving the overall economic efficiency of the vehicle. Attached Figure Description

[0036] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0037] Figure 1 This is the front view of the present invention.

[0038] Figure 2 For the present utility model Figure 1 A partially enlarged sectional view.

[0039] Figure 3 This is a schematic diagram showing the connection relationship between the lower card holder and the lug of this utility model.

[0040] Figure 4 For the present utility model Figure 3 The left view.

[0041] Figure 5 This is a partial structural diagram of the hinge part of this utility model.

[0042] Figure 6 For the present utility model Figure 5 The left view.

[0043] Figure 7 This is a schematic diagram showing the connection relationship between the upper card holder, lower card holder, card connector, and locking component of this utility model.

[0044] Figure 8 For the present utility model Figure 7 A partial structural diagram.

[0045] Explanation of reference numerals in the attached drawings: 1-Fixed seat; 11-Stud; 111-Optical axis; 112-Screw head; 12-Lower retainer; 13-Lower retaining semicircle; 14-Lug; 15-Through hole; 16-Counterhole; 2-Upper retainer; 21-Hinge; 211-Opening; 22-Upper retaining semicircle; 3-Retaining end; 31-Connecting seat; 32-First conical shaft; 33-Second conical shaft; 34-Guide cone; 4-Locking element; 41-Mounting plate; 42-Clamping spring; 421-First spring; 422-Second spring; 423-Third spring; 5-Hinge shaft. Detailed Implementation

[0046] To further understand the features, technical means, and specific objectives and functions of this utility model, and to analyze its advantages and spirit, the following detailed description of this utility model, in conjunction with the accompanying drawings and specific embodiments, will provide a further understanding of this utility model.

[0047] refer to Figures 1 to 8 ,like Figure 1 As shown in the figure, this embodiment provides a wiring fixing structure for automobile modification.

[0048] like Figure 1 As shown, the wiring harness fixing structure used in this automotive modification mainly consists of key components such as a fixing base 1, a lower clamping base 12, an upper clamping base 2, a clamping end 3, a locking component 4, and a hinge shaft 5. These components work together to construct a stable and flexible wiring harness fixing system to meet the wiring harness fixing requirements during automotive modification.

[0049] Mounting bracket 1 is the fundamental component connecting the entire wiring harness fixing structure to the vehicle body. For example... Figure 1 and Figure 2 As shown, the mounting base 1 is made of 5mm thick high-strength steel plate, stamped and formed, with dimensions of 80mm in length and 60mm in width, providing sufficient strength and stability. A stud 11 is welded onto the mounting base 1. The stud 11 is made of 8mm diameter stainless steel and is 30mm long to ensure sufficient load-bearing capacity and corrosion resistance. An optical shaft 111 is designed at the upper end of the stud 11. The optical shaft 111 is 4mm long and 8.2mm in diameter, and is tightly connected to the 8.2mm diameter through hole 15 on the mounting base 1 using an interference fit. The interference amount is 0.1-0.2mm. This fit ensures a tight connection between the optical shaft 111 and the mounting base 1, preventing loosening. A screw head 112 is installed at the upper end of the optical shaft 111, and is fixed to the upper surface of the mounting base 1 by spot welding. The weld points are evenly distributed to ensure a firm and reliable connection.

[0050] In practical applications, the stud 11 is first securely fixed to the vehicle body via a threaded connection. For example, at a specific location inside the vehicle's engine compartment, an M8 threaded hole matching the stud 11 is pre-drilled. The stud 11 is then screwed into the threaded hole, and a torque of 20-25 N·m is applied using a torque wrench to ensure a reliable connection between the mounting bracket 1 and the vehicle body, providing a solid installation foundation for the entire wiring fixing structure.

[0051] The lower bracket 12, mounted on the fixing base 1, is one of the key components for securing the wire harness. For example... Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the lower bracket 12 is injection molded from plastic, possessing good insulation properties and a certain degree of elasticity. A lower latching semicircle 13 with a radius of 8mm is located at the upper center of the lower bracket 12, perfectly matching the shape of common automotive wiring harnesses and effectively accommodating them. A lug 14 with a thickness of 3mm is located at the left end of the lower bracket 12, and a 6mm diameter through hole is formed thereon. This through hole is used for hinge connection with the hinge part 21 of the upper bracket 2, enabling a flexible connection between the upper bracket 2 and the lower bracket 12. A locking element 4 is installed at the right end of the lower bracket 12, which is tightly connected to the locking element 4 via a slot and a buckle, ensuring a secure installation of the locking element 4.

[0052] The upper clamping seat 2 is an important component that works with the lower clamping seat 12 to hold the wire harness. For example... Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the upper bracket 2 is also injection molded from plastic. Its left end has a hinge part 21 with an opening 211, 3.2mm wide, which transitions with the lug 14 with a clearance of 0.1-0.2mm. This fit ensures smooth and unobstructed rotation between the upper bracket 2 and the lower bracket 12, while also maintaining stability to prevent loosening during vehicle operation. The right end of the upper bracket 2 has a locking end 3, and the lower middle part has an upper locking semicircle 22 with a radius of 8mm, corresponding to the lower locking semicircle 13, together forming the clamping space for the wire harness. When the upper bracket 2 and the lower bracket 12 are closed, the upper locking semicircle 22 and the lower locking semicircle 13 fit tightly together, firmly clamping the wire harness in the middle.

[0053] The hinge portion 21 of the upper card holder 2 is hinged to the lug 14 of the lower card holder 12 via the hinge shaft 5. For example... Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the hinge shaft 5 is a 6mm diameter stainless steel round shaft with a polished surface to reduce friction during rotation. The hinge shaft 5 passes through the opening 211 of the hinge part 21 and the through hole on the lug 14, and is secured at both ends with retaining springs to prevent it from falling off. This design allows the upper retaining seat 2 to rotate freely relative to the lower retaining seat 12 around the hinge shaft 5, with a rotation angle range of 0-180°, facilitating the installation and removal of the wire harness. In actual operation, workers can easily open the upper retaining seat 2, place the wire harness into the lower retaining semicircle 13, and then close the upper retaining seat 2, making the operation simple and convenient.

[0054] The snap-fit ​​end 3 is a key component used to snap into the locking element 4, and its specific structure is as follows: Figure 7 and Figure 8 As shown. The snap-fit ​​end 3 includes a connecting seat 31, a first conical shaft 32, a second conical shaft 33, and a guide cone 34. The connecting seat 31 is firmly fixed to the right end of the upper snap-fit ​​seat 2 by welding. The welding strength has been strictly tested to ensure a firm connection. The first conical shaft 32 is connected to the lower end of the connecting seat 31, the second conical shaft 33 is connected to the lower end of the first conical shaft 32, and the guide cone 34 is connected to the lower end of the second conical shaft 33. The outer diameter of the first conical shaft 32 decreases from top to bottom, the outer diameter of the second conical shaft 33 increases from top to bottom, and the outer diameter of the guide cone 34 decreases from top to bottom, forming a stepped conical structure. This structure not only facilitates the smooth insertion of the snap-fit ​​end 3 into the locking member 4, but also enables a reliable snap-fit ​​with the locking member 4, ensuring the stability of the wire harness fixation. In practical applications, the guide cone 34 can play a guiding role, making it easier for the snap-fit ​​end 3 to be inserted into the locking member 4, while the first cone shaft 32 and the second cone shaft 33 can closely cooperate with the spring of the locking member 4 to provide a stable clamping force.

[0055] The locking component 4 is an important part used to engage with the snap-fit ​​end 3, thereby locking the upper snap-fit ​​seat 2 and the lower snap-fit ​​seat 12. The locking component 4 includes a mounting plate 41 and a pair of clamping springs 42. The mounting plate 41 is made of spring steel with a thickness of 0.5mm and is firmly fixed to the bottom wall of the countersunk hole 16 at the right end of the lower snap-fit ​​seat 12 by M4 screws. The screw tightening torque is 5-6 N·m to ensure that the mounting plate 41 is installed securely. A pair of clamping springs 42 are symmetrically arranged on the mounting plate 41. The clamping springs 42 are made of spring steel with good elasticity and a thickness of 0.5mm. The clamping springs 42 include a first spring 421, a second spring 422, and a third spring 423. The first spring 421 is connected to the end of the mounting plate 41. The second spring 422 is connected to the first spring 421 and is inclined toward the second conical shaft 33, and tightly abuts against the second conical shaft 33. The third spring 423 is connected to the second spring 422 and is inclined toward the first conical shaft 32, and tightly abuts against the first conical shaft 32. This multi-stage spring structure design can provide a stable and reliable clamping force, ensuring that the snap-fit ​​end 3 and the locking member 4 can reliably engage, thereby ensuring the secure fixation of the wire harness.

[0056] Working principle:

[0057] In actual use, the stud 11 is first securely fixed to the vehicle body. For example, an M8 threaded hole matching the stud 11 is pre-drilled at a specific location in the engine compartment of the vehicle. The stud 11 is then screwed into the threaded hole, forming a reliable connection between the mounting base 1 and the vehicle body. Next, the wiring harness is passed through the lower snap-fit ​​semicircle 13, and the upper snap-fit ​​base 2 is gently operated by hand to allow the hinge portion 21 of the upper snap-fit ​​base 2 to rotate smoothly around the hinge axis 5 on the lug 14.

[0058] Subsequently, the snap-fit ​​end 3 is slowly inserted into the locking member 4. The specific process of inserting the snap-fit ​​end 3 into the locking member 4 is as follows: the guide cone 34 passes through a pair of third springs 423 and a pair of second springs 422 from top to bottom, and the lower end of the guide cone 34 smoothly enters the upper part between a pair of first springs 421. During this process, the third springs 423 tightly abut against the outer circumference of the first cone shaft 32, and the second springs 422 tightly abut against the outer circumference of the second cone shaft 33, thereby achieving a reliable engagement between the snap-fit ​​end 3 and the locking member 4. At this time, the upper snap-fit ​​semicircle 22 tightly presses against the wire harness, cooperating with the lower snap-fit ​​semicircle 13 to firmly clamp the wire harness, ensuring that the wire harness will not loosen or fall off during vehicle operation, and ensuring the stable operation of the electrical system.

[0059] When it is necessary to disassemble the wire harness, the operation is equally simple. Just gently pull the upper retainer 2 outward by hand to allow the retaining end 3 to disengage smoothly from the locking member 4, and then open the upper retainer 2 to easily remove the wire harness. No special tools are required, which greatly improves work efficiency.

[0060] Structural advantages:

[0061] Secure and reliable: This wiring harness fixing structure, through the tight fit of the lower snap-fit ​​semicircle 13 and the upper snap-fit ​​semicircle 22, and the reliable engagement of the snap-fit ​​end 3 and the locking member 4, can firmly fix the wiring harness to the vehicle body. Even when the vehicle encounters vibrations or bumps during driving, it can effectively prevent the wiring harness from loosening or falling off, ensuring the stable operation of the electrical system and providing strong protection for driving safety.

[0062] Installation and disassembly are convenient and efficient: The upper bracket 2 and the lower bracket 12 are flexibly hinged by the hinge shaft 5, and the upper bracket 2 can be opened and closed with simple operation. The engagement and disengagement of the locking end 3 and the locking part 4 also do not require special tools. The operation is simple and easy to understand, which greatly improves the efficiency of installation and disassembly, saves time and labor costs, and is especially suitable for scenarios with high efficiency requirements, such as automobile modification.

[0063] In summary, this wiring harness fixing structure for automotive modification, with its advantages of reasonable structure, firm fixing, convenient installation and disassembly, and strong adaptability, can effectively solve the problems existing in the wiring harness fixing structure in automotive modification, and provide an efficient and reliable solution for the automotive modification industry.

[0064] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

[0065] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made without departing from the principle and spirit of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wiring fixing structure for automotive modification, characterized in that, include: A mounting base (1) is fixedly connected to the vehicle body; The lower card holder (12) is installed on the fixed base (1). The upper part of the middle of the lower card holder (12) is provided with a lower locking semicircle (13). The left end of the lower card holder (12) is provided with a lug (14), and the right end is provided with a locking member (4). The upper card holder (2) has a hinge part (21) at the left end, a card end (3) at the right end, and an upper card semicircle (22) at the lower middle part. The hinge part (21) is hinged to the lug (14). When the snap-fit ​​end (3) snaps into the locking member (4), the wire harness is held between the upper snap-fit ​​semicircle (22) and the lower snap-fit ​​semicircle (13).

2. The wiring fixing structure for automobile modification according to claim 1, characterized in that, The hinge (21) is hinged to the lug (14) via the hinge shaft (5).

3. The wiring fixing structure for automobile modification according to claim 1, characterized in that, The snap-fit ​​end (3) includes: Connecting seat (31), the connecting seat (31) is fixedly connected to the right end of the upper card seat (2); The first conical shaft (32) is connected to the lower end of the connecting seat (31); The second conical shaft (33) is connected to the lower end of the first conical shaft (32); A guide cone (34) is connected to the lower end of the second cone shaft (33).

4. The wiring fixing structure for automobile modification according to claim 3, characterized in that, The locking element (4) includes: Mounting plate (41), which is fixed to the bottom wall of the countersunk hole (16) at the right end of the lower bracket (12) by screws; A pair of clamping springs (42) are connected to the end of the mounting plate (41) and abut against the first tapered shaft (32) and the second tapered shaft (33).

5. The wiring fixing structure for automobile modification according to claim 4, characterized in that, A pair of clamping springs (42) are symmetrically arranged on the mounting plate (41).

6. The wiring fixing structure for automobile modification according to claim 4, characterized in that, The clamping spring (42) includes: The first spring (421) is connected to the end of the mounting plate (41); The second reed (422) is connected to the first reed (421) and is inclined toward the second conical shaft (33) and abuts against the second conical shaft (33). The third reed (423) is connected to the second reed (422) and is inclined toward the first conical shaft (32) and abuts against the first conical shaft (32).

7. The wiring fixing structure for automobile modification according to claim 6, characterized in that, The opening (211) of the hinge (21) transitions into the lug (14).

8. The wiring fixing structure for automobile modification according to claim 7, characterized in that, A stud (11) is welded onto the fixing seat (1).