An adjustable automobile wire harness fixing buckle device

Abstract

The utility model discloses an adjustable automobile wiring harness fixed buckle device, including harness buckle sleeve, the inside fixed sleeve of harness buckle sleeve is equipped with automobile wiring harness main part, the outside of harness buckle sleeve is equipped with three fixed buckle hoop, the side wall opening of fixed buckle hoop both ends all installs the adjusting plate, the side wall of adjusting plate is opened and is equipped with the adjusting hole in adjusting hole, and the adjusting piece is inserted in, this adjustable automobile wiring harness fixed buckle device is equipped with the adjusting hole on the adjusting plate of fixed buckle hoop, and cooperates the adjusting piece that is composed of fastening screw rod and anti -drop screw rod, can the tightness degree of flexible regulation fixed buckle hoop.

Description

Technical Field

[0001] This utility model relates to the field of wire harness clip technology, specifically an adjustable automotive wire harness fixing clip device. Background Technology

[0002] In the automobile manufacturing process, the secure fixing of automotive wiring harnesses is a crucial step in ensuring the stable operation of the vehicle's electrical system. As an important carrier of electrical and signal transmission within the vehicle, the rationality of the wiring harness layout and the reliability of its fixing directly affect the vehicle's safety and service life.

[0003] Currently, traditional automotive wiring harness fixing methods mostly use fixed clips. The size and tightness of these clips are fixed, making it difficult to adapt to wiring harnesses of different diameters. When facing the wiring harness fixing needs of different car models or different locations, multiple models of clips need to be equipped, which not only increases production and procurement costs but also reduces installation efficiency.

[0004] Meanwhile, traditional clips are prone to loosening during long-term use due to factors such as vehicle vibration and temperature changes, leading to wiring harness swaying, friction, and even safety hazards such as wiring harness wear and short circuits, seriously affecting the normal operation of the vehicle. In addition, in existing clip fixing structures, fastening components may fall off after long-term use, further reducing the stability and reliability of the wiring harness fixing. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable automotive wiring harness fixing buckle device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable automotive wiring harness fixing clip device, comprising a wiring harness clip sleeve, wherein an automotive wiring harness body is fixedly fitted inside the wiring harness clip sleeve, and three fixing clip clamps are fitted outside the wiring harness clip sleeve; adjusting plates are installed at both ends of the side wall openings of the fixing clip clamps, and adjusting holes are provided on the side walls of the adjusting plates, into which adjusting components are inserted; the adjusting components include a fastening screw and an anti-detachment screw, and a fastening nut is screwed onto the outside of the fastening screw; an anti-detachment screw groove is provided at the bottom end of the fastening screw, and the anti-detachment screw is screwed into the anti-detachment screw groove.

[0007] As a preferred embodiment of the adjustable automotive wiring harness fixing buckle device of this utility model, an anti-detachment cylinder is sleeved on the outside of the anti-detachment screw, and three limiting posts are installed on the outer wall of the anti-detachment cylinder. The three limiting posts are distributed in a triangle, and the inner wall of each limiting post is provided with a spiral groove that cooperates with the fastening screw.

[0008] As a preferred embodiment of the adjustable automotive wiring harness fixing buckle device of this utility model, the outer wall of the fastening nut is provided with a stepped annular groove, and the end of the limiting post is disposed in the stepped annular groove.

[0009] As a preferred embodiment of the adjustable automotive wiring harness fixing buckle device of this utility model, a fixing ring is fixedly installed on the upper outer end of the fastening screw, and an annular pressure plate, a spring and an annular rubber sheet are fitted on the circumferential surface of the fastening screw.

[0010] In a preferred embodiment of the adjustable automotive wiring harness fixing buckle device of this utility model, the annular pressure plate is located on the upper side of the fixing ring, the spring is located on the upper side of the annular pressure plate, the annular rubber sheet is located on the lower side of the fixing ring, and a compression block is fixedly installed at the lower edge of the annular pressure plate.

[0011] As a preferred embodiment of the adjustable automotive wiring harness fixing buckle device of this utility model, the inner wall of the wiring harness buckle sleeve is provided with a heat dissipation layer, and the heat dissipation layer is fitted to the outer wall of the automotive wiring harness body.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the adjustable automotive wiring harness fixing buckle device has a reasonable structural design;

[0013] This adjustable automotive wiring harness fixing clip device allows for flexible adjustment of the tightness of the fixing clip by opening adjustment holes in the adjustment plate of the fixing clip clamp and using an adjustment component consisting of a fastening screw and an anti-loosening screw. This design enables the device to be adapted to automotive wiring harness bodies of different diameter specifications, eliminating the need to equip different wiring harnesses with separate clips, greatly improving the device's versatility and ease of use, and reducing production costs.

[0014] A fastening nut is screwed onto the outside of the fastening screw, which can tightly fix the adjusting plate and ensure that the fixing clip firmly clamps the main body of the automotive wiring harness. Simultaneously, an anti-loosening screw is screwed into the anti-loosening groove at the bottom of the fastening screw. The outer wall of the anti-loosening sleeve, which is fitted with the anti-loosening screw, has triangularly distributed limiting posts. The spiral grooves on the inner walls of the limiting posts mate with the fastening screw, and the ends of the limiting posts are positioned within the stepped annular grooves on the outer wall of the fastening nut. This multi-layered anti-loosening structure effectively prevents the fastening components from loosening under conditions such as automotive vibration, significantly improving the stability of the wiring harness fixation and reducing safety hazards caused by wiring harness loosening. Attached Figure Description

[0015] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3This is a schematic diagram of the adjusting component of this utility model;

[0018] Figure 4 This is a schematic diagram of the fastening cylinder of this utility model.

[0019] In the diagram: 1. Wiring harness clip sleeve; 2. Automotive wiring harness body; 3. Fixing clip sleeve; 4. Adjusting plate; 5. Adjusting hole; 6. Adjusting component; 7. Fastening nut; 8. Anti-detachment screw groove; 9. Anti-detachment cylinder; 10. Anti-detachment screw; 11. Stepped annular groove; 12. Fixing ring; 13. Extrusion block; 14. Annular pressure plate; 15. Annular rubber sheet; 16. Spring; 17. Fastening screw; 18. Spiral groove; 19. Limiting post. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 This utility model provides a technical solution:

[0022] In this technical solution, an adjustable automotive wiring harness fixing clip device includes a wiring harness clip sleeve 1. The wiring harness clip sleeve 1 is internally fixedly fitted with an automotive wiring harness body 2, and the wiring harness clip sleeve 1 is externally fitted with three fixing clip clamps 3. Adjusting plates 4 are installed at both ends of the side wall openings of the fixing clip clamps 3. Adjusting holes 5 are opened on the side walls of the adjusting plates 4, and adjusting components 6 are inserted into the adjusting holes 5. The adjusting component 6 includes a fastening screw 17 and an anti-detachment screw 10. A fastening nut 7 is screwed to the outside of the fastening screw 17. An anti-detachment groove 8 is opened at the bottom end of the fastening screw 17, and the anti-detachment screw 10 is screwed into the anti-detachment groove 8.

[0023] The wiring harness clip sleeve 1, serving as a support and initial protection component for the main body 2 of the automotive wiring harness, is typically made of engineering plastics with a certain degree of flexibility and wear resistance, such as PA66 (polyamide 66). PA66 not only effectively resists mechanical friction during vehicle operation but also possesses excellent insulation properties, preventing short circuits in the main body 2 caused by external factors. The main body 2 of the automotive wiring harness consists of multiple wires or cables. Depending on the power requirements and signal transmission needs of different functional areas of the vehicle, the specifications, quantity, and insulation characteristics of the internal wires vary. For example, wires used to transmit high-power current typically use thicker copper cores to reduce resistance and power loss; while wires used to transmit low-voltage signals require higher purity of the core and better shielding performance of the insulation layer to ensure the accuracy and stability of signal transmission.

[0024] The inner diameter of the wire harness clip sleeve 1 is generally designed based on the outer diameter range of common automotive wire harness bodies 2, with common sizes ranging from 10-50mm, which can accommodate wire harnesses of different thicknesses. The diameter of a single wire inside the automotive wire harness body 2 is typically between 0.5-10mm², depending on the current it carries and the signal type.

[0025] To further improve the securing effect of the wire harness clip sleeve 1 on the wire harness body 2, some anti-slip textures or raised structures can be provided on its inner wall. These textures or raised structures can increase the friction between the wire harness clip sleeve 1 and the wire harness body 2, preventing the wire harness from sliding inside the clip sleeve. For example, longitudinal or spiral fine stripes can be provided on the inner wall, with a stripe height of 0.2-0.5mm, a width of 0.3-0.8mm, and a spacing of 1-2mm.

[0026] In some technical solutions, an anti-detachment sleeve 9 is sleeved on the outside of the anti-detachment screw 10. Three limiting posts 19 are installed on the outer wall of the anti-detachment sleeve 9. The three limiting posts 19 are distributed in a triangle. The inner wall of each limiting post 19 is provided with a spiral groove 18 that cooperates with the fastening screw 17.

[0027] The fixing clips 3 are fitted onto the outside of the wire harness clip sleeve 1, serving to further secure and position the wire harness. They are typically made of metal, such as stainless steel or galvanized steel, to ensure sufficient strength and corrosion resistance to withstand vibrations during vehicle operation and various environmental factors. The three fixing clips 3 are evenly distributed on the wire harness clip sleeve 1. This distribution ensures that the wire harness receives uniform tightening force in all directions, preventing damage or unstable fixation due to uneven localized stress.

[0028] The width of the fixing clip 3 is generally between 10-20mm, and the thickness is 1-2mm. Its inner diameter is slightly larger than the outer diameter of the wire harness clip sleeve 1, and the gap between the two is usually controlled at 0.5-1mm to ensure that the fixing clip 3 can fit tightly on the wire harness clip sleeve 1, while not damaging the wire harness clip sleeve 1 due to excessive tightness;

[0029] A layer of rubber or silicone cushioning pad can be added to the inner surface of the fixing clip 3. This cushioning pad can further enhance the friction between the fixing clip 3 and the wire harness clip sleeve 1, while also playing a role in shock absorption and protection, reducing the impact on the wire harness clip sleeve 1 and the wire harness body 2 caused by vehicle vibration. The thickness of the cushioning pad is generally 2-3mm, and the material can be nitrile rubber or silicone rubber, both of which have good elasticity and wear resistance.

[0030] The adjusting plates 4 installed at both ends of the side wall opening of the fixing clamp 3 provide the basic structure for adjusting the tightness of the fixing clamp 3. The adjusting plates 4 are generally integrated with the fixing clamp 3 and made of the same material to ensure the strength and stability of the overall structure. Adjusting holes 5 are formed on the side wall of the adjusting plates 4, and their shape is usually circular or oblong. Circular adjusting holes are suitable for applications where high adjustment precision is not required, while oblong adjusting holes provide a more flexible adjustment range, allowing users to fine-tune according to actual needs. The number and spacing of the adjusting holes 5 depend on the size of the fixing clamp 3 and the required adjustment precision; generally, one adjusting hole is formed every 10-20 mm.

[0031] The length of the adjusting plate 4 is generally 30-50mm, and the width is 15-25mm. The diameter of the adjusting hole 5 (or the minor axis diameter of the oblong hole) is usually between 5-8mm, and the major axis length of the oblong hole is generally 10-15mm.

[0032] The edges of the adjusting hole 5 can be chamfered to prevent damage to the adjusting component 6 due to sharp edges during insertion and removal. The chamfer angle is generally 30°-45°, and the chamfer depth is 0.5-1mm. Furthermore, to facilitate the insertion and positioning of the adjusting component 6, guide grooves or threaded structures can be provided on the inner wall of the adjusting hole 5. The guide grooves guide the adjusting component 6 smoothly into the adjusting hole 5, while the threaded structure ensures that the adjusting component 6 is more securely fixed within the adjusting hole 5 after adjustment, preventing loosening.

[0033] Adjusting component 6, a key part for adjusting the tightness of the fixing clip 3, consists of a fastening screw 17 and an anti-loosening screw 10. A fastening nut 7 is screwed onto the outside of the fastening screw 17. By rotating the fastening nut 7, the extension length of the fastening screw 17 within the adjusting hole 5 can be adjusted, thereby changing the tightness of the fixing clip 3. The fastening screw 17 and the anti-loosening screw 10 are generally made of high-strength alloy steel, with a galvanized or chrome-plated surface to improve their corrosion resistance and rust prevention.

[0034] The diameter of the fastening screw 17 is generally between 6-10mm, and the length depends on the actual application requirements, usually between 50-100mm. The diameter of the anti-loosening screw 10 is slightly smaller than that of the fastening screw 17, generally 4-6mm, and the length is 20-30mm. The specifications of the fastening nut 7 are matched with those of the fastening screw 17, commonly M6-M10 models;

[0035] To facilitate user operation, anti-slip textures or knurling can be applied to the surface of the fastening nut 7 to increase friction when rotating it, making operation more convenient and effortless. The depth of the anti-slip textures is generally 0.3-0.5mm, the width is 0.5-1mm, and the spacing is 1-2mm. Furthermore, the head of the fastening screw 17 can be designed with a structure that facilitates operation with a wrench or screwdriver, such as a hexagonal head or a Phillips head, to meet the needs of different tools.

[0036] The anti-detachment screw 10 is screwed into the anti-detachment groove 8 at the bottom of the fastening screw 17, providing the first layer of anti-detachment protection for the adjusting component 6. An anti-detachment sleeve 9 is sleeved on the outside of the anti-detachment screw 10, further restricting the axial movement of the anti-detachment screw 10 and enhancing the anti-detachment effect. Three triangularly distributed limiting posts 19 are installed on the outer wall of the anti-detachment sleeve 9. This triangular distribution makes the structure more stable and can limit the movement of the anti-detachment sleeve 9 and the fastening screw 17 in different directions. Each limiting post 19 has a spiral groove 18 on its inner wall that mates with the fastening screw 17. When the fastening screw 17 rotates, the limiting post 19, through the engagement of the spiral groove 18 with the fastening screw 17, can rotate with the fastening screw 17, while simultaneously restricting the axial movement of the fastening screw 17.

[0037] The depth of the anti-loosening groove 8 is generally 10-15mm, and the pitch matches that of the anti-loosening screw 10. The outer diameter of the anti-loosening cylinder 9 is generally 20-30mm, and the inner diameter is slightly larger than that of the anti-loosening screw 10, with a gap of 0.5-1mm between them. The length of the limiting post 19 is 15-25mm, the diameter is 5-8mm, and the pitch of the spiral groove 18 is the same as that of the fastening screw 17, generally 1-1.5mm.

[0038] At the connection between the anti-loosening screw 10 and the anti-loosening groove 8, some thread-locking adhesive can be applied to further enhance the connection strength between the two and prevent loosening due to vibration. The curing time of the thread-locking adhesive generally varies from a few minutes to tens of minutes, depending on the product characteristics. In addition, in order to ensure smooth fit between the limiting post 19 and the spiral groove 18 of the fastening screw 17, the machining accuracy of the spiral groove 18 needs to be strictly controlled during the production process. Its pitch error should be controlled within ±0.05mm, and the surface roughness should reach Ra0.8-Ra1.6μm.

[0039] In some technical solutions, the outer wall of the fastening nut 7 is provided with a stepped annular groove 11, and the end of the limiting post 19 is set in the stepped annular groove 11.

[0040] The outer wall of the fastening nut 7 has a stepped annular groove 11, and the end of the limiting post 19 is set in the stepped annular groove 11, forming a mechanical limiting structure. When the fastening nut 7 rotates, the limiting post 19 rotates with it in the stepped annular groove 11, thereby limiting the axial movement of the fastening nut 7 and preventing it from falling off the fastening screw 17. This structural design further improves the stability and reliability of the adjusting component 6, ensuring that the adjusting structure of the fixing clip 3 will not loosen or fall off in the complex vibration environment of the automobile.

[0041] The depth of the stepped annular groove 11 is generally 3-5mm, and the width is determined according to the diameter of the limiting post 19, generally 1-2mm larger than the diameter of the limiting post 19. The fitting clearance between the end of the limiting post 19 and the stepped annular groove 11 should be controlled between 0.1-0.3mm to ensure both flexible rotation and effective limiting.

[0042] The surface of the stepped annular groove 11 can be hardened, such as by carburizing and quenching or nitriding, to improve its wear resistance and fatigue resistance. The carburized layer depth after carburizing and quenching is generally 0.5-1 mm, with a quenching hardness reaching HRC58-HRC62; the nitrided layer depth after nitriding is 0.1-0.3 mm, with a surface hardness reaching HV900-HV1200. Furthermore, some grease can be added to the contact surface between the end of the limiting post 19 and the stepped annular groove 11 to reduce friction and wear, and extend service life. The choice of grease should be based on the vehicle's operating environment and temperature range; generally, lithium-based or silicone-based greases with good high-temperature and low-temperature resistance are selected.

[0043] In some technical solutions, a retaining ring 12 is fixedly installed on the upper outer end of the fastening screw 17, and an annular pressure plate 14, a spring 16 and an annular rubber sheet 15 are fitted on the circumferential surface of the fastening screw 17.

[0044] A retaining ring 12 is fixedly mounted on the upper outer end of the fastening screw 17, used for positioning and supporting the annular pressure plate 14, spring 16, and annular rubber sheet 15. The annular pressure plate 14 is located above the retaining ring 12, the spring 16 is located above the annular pressure plate 14, and the annular rubber sheet 15 is located below the retaining ring 12. When the fastening nut 7 is tightened, the spring 16 is compressed, and pressure is applied downward through the annular pressure plate 14, causing the annular rubber sheet 15 to fit tightly against the surface of the adjusting plate 4. The spring 16 acts as a buffer and shock absorber, absorbing vibration energy during vehicle operation and reducing the impact of vibration on the adjusting structure and wiring harness. The annular rubber sheet 15 reduces rigid contact and friction between the fastening components and the adjusting plate 4, protecting the adjusting plate 4 from damage, and also enhancing the sealing of the adjusting structure to prevent dust and moisture from entering.

[0045] The outer diameter of the retaining ring 12 is generally 15-25mm, and its inner diameter is slightly larger than that of the fastening screw 17, with a gap of 0.5-1mm between them. The outer diameter of the annular pressure plate 14 is 20-30mm, its inner diameter is the same as that of the retaining ring 12, and its thickness is 2-3mm. The free length of the spring 16 is generally 30-50mm, and the compression amount depends on actual needs, generally between 10-20mm. The spring constant should be selected according to the pressure and cushioning requirements, usually between 5-15N / mm. The outer diameter of the annular rubber sheet 15 is 25-35mm, its inner diameter is the same as that of the retaining ring 12, and its thickness is 3-5mm.

[0046] To ensure that the spring 16 does not tilt or deform during operation, guide structures, such as guide grooves or guide posts, can be provided on the fixing ring 12 and the annular pressure plate 14. The width and depth of the guide groove should match the outer diameter of the spring 16, generally with a width of 1.1-1.2 times the outer diameter of the spring and a depth of 5-8 mm. The diameter of the guide post is 0.8-0.9 times the inner diameter of the spring, and its length is 1 / 3-1 / 2 of the free length of the spring. Furthermore, the material of the annular rubber sheet 15 can be nitrile rubber or EPDM rubber, which have good aging resistance and oil resistance, to adapt to harsh environments such as automotive engine compartments.

[0047] In some technical solutions, the annular pressure plate 14 is located above the fixed ring 12, the spring 16 is located above the annular pressure plate 14, the annular rubber sheet 15 is located below the fixed ring 12, and the extrusion block 13 is fixedly installed at the lower edge of the annular pressure plate 14.

[0048] The compression block 13, fixedly installed at the lower edge of the annular pressure plate 14, enhances the pressure stability of the adjusting plate 4. The compression block 13 is generally made of the same metal material as the annular pressure plate 14, and its shape and size are designed according to the shape and stress conditions of the adjusting plate 4. The function of the compression block 13 is to concentrate the pressure of the spring 16 onto a specific part of the adjusting plate 4, improving pressure transmission efficiency and allowing the adjusting plate 4 to deform more evenly under pressure, thereby ensuring a more stable fastening effect of the fixing clip 3.

[0049] The length of the extrusion block 13 is generally 10-20mm, the width is 5-10mm, and the thickness is the same as that of the annular pressure plate 14. The number and spacing of the extrusion blocks 13 on the lower edge of the annular pressure plate 14 are determined according to the size of the adjusting plate 4 and the required uniformity of pressure distribution. Generally, one extrusion block 13 is installed every 15-25mm.

[0050] Surface treatments, such as nickel plating or chromium plating, can be applied to the contact surface between the extrusion block 13 and the adjusting plate 4 to improve their wear resistance and corrosion resistance. The thickness of the nickel plating layer is generally 0.01-0.03 mm, and the thickness of the chromium plating layer is 0.005-0.015 mm. Furthermore, to further enhance the friction between the extrusion block 13 and the adjusting plate 4, some small protrusions or textures can be provided on the contact surface. The protrusion height is 0.1-0.3 mm, and the width and spacing of the textures are 0.5-1 mm.

[0051] In some technical solutions, the inner wall of the wiring harness clip sleeve 1 is provided with a heat dissipation layer, and the heat dissipation layer is fitted to the outer wall of the automotive wiring harness body 2.

[0052] The heat dissipation layer on the inner wall of the wiring harness clip sleeve 1 is fitted to the outer wall of the automotive wiring harness body 2, effectively dissipating the heat generated during the operation of the automotive wiring harness. The heat dissipation layer is typically made of materials with good thermal conductivity, such as aluminum foil, graphite sheets, or thermally conductive silicone. Aluminum foil has high thermal conductivity and good flexibility, allowing it to fit tightly against the inner wall of the wiring harness clip sleeve 1; graphite sheets have excellent planar thermal conductivity, quickly conducting heat away along the planar direction; thermally conductive silicone not only has good thermal conductivity but also provides cushioning and sealing, preventing dust and moisture from entering the wiring harness clip sleeve 1.

[0053] The thickness of the heat dissipation layer depends on the selected material and heat dissipation requirements. The thickness of aluminum foil is generally 0.05-0.1 mm, graphite sheets are 0.1-0.3 mm, and thermally conductive silicone is 1-2 mm. The heat dissipation layer requires high thermal conductivity. The thermal conductivity of aluminum foil is generally between 200-237 W / (m·K), the planar thermal conductivity of graphite sheets can reach 1500-2000 W / (m·K), and the thermal conductivity of thermally conductive silicone is 1-3 W / (m·K).

[0054] To further improve heat dissipation, heat dissipation fins or microporous structures can be incorporated into the surface of the heat dissipation layer. Heat dissipation fins increase the heat dissipation area and improve efficiency; their height is typically 5-10 mm, thickness 0.5-1 mm, and spacing 2-3 mm. Microporous structures accelerate heat dissipation by increasing airflow; the diameter of the micropores is typically 0.1-0.3 mm, and the density depends on the actual heat dissipation requirements, generally 50-100 micropores per square centimeter. Furthermore, the bonding method between the heat dissipation layer and the inner wall of the wire harness clip sleeve 1 is also crucial. Adhesion or hot pressing can be used to ensure good thermal conductivity between the two. The adhesive should be a product with good thermal conductivity, with a thermal conductivity not less than 1 W / (m·K).

[0055] I. Overall Work Process

[0056] The adjustable automotive wiring harness fixing clip device mainly focuses on the functions of fixing, adjusting, preventing detachment, buffering and shock absorption, and heat dissipation of the automotive wiring harness. The various components work together to ensure the stable and safe operation of the wiring harness in complex automotive environments. The specific process is as follows: First, the main body of the automotive wiring harness is installed into the wiring harness clip sleeve, and then initially fixed using the fixing clip clamps. Next, the tightness of the fixing clip clamps is adjusted using the adjusting components. During the adjustment process, the anti-detachment structure plays a role in preventing components from falling off, while the buffering and protective structure reduces the impact of vibration. Finally, the heat dissipation layer dissipates the heat generated by the automotive wiring harness during operation.

[0057] II. Working Principles of Each Structure

[0058] Basic structure working principle

[0059] Wire harness clip sleeve and automotive wire harness body: The wire harness clip sleeve is made of PA66 engineering plastic, which has good flexibility and wear resistance. When the automotive wire harness body is installed into the wire harness clip sleeve, the clip sleeve can tightly wrap the wire harness body, using its own structural strength to provide support and protection for the wire harness, preventing damage to the wire harness due to shaking and friction during vehicle operation. At the same time, the insulation properties of PA66 can prevent safety issues such as short circuits between the wire harness body and external metal parts. If the inner wall is equipped with anti-slip textures or raised structures, the textures or raised structures will embed into the outer surface of the wire harness body, increasing the friction between the two and further preventing the wire harness from sliding inside the clip sleeve.

[0060] Fixed clamps: The fixed clamps are made of stainless steel or galvanized steel, possessing high strength and corrosion resistance. Three fixed clamps are evenly distributed on the outside of the wiring harness clip sleeve. By tightening the adjusting plate, the wiring harness clip sleeve is firmly held, thus fixing the automotive wiring harness body in the designated position. The inner rubber or silicone buffer pads increase the friction between the fixed clamps and the wiring harness clip sleeve, preventing the fixed clamps from loosening. Furthermore, when the vehicle vibrates, the buffer pads absorb some of the vibration energy, reducing the impact of vibration on the wiring harness clip sleeve and the wiring harness body, thus providing shock absorption and protection.

[0061] Adjustment structure working principle

[0062] Adjusting Plate and Adjusting Holes: The integrated design of the adjusting plate and the fixing clamp ensures the strength and stability of the structure. The adjusting holes provide a positional basis for the installation and adjustment of the adjusting components. When it is necessary to adjust the tightness of the fixing clamp, the size of the opening of the fixing clamp is adjusted by changing the position of the adjusting component in different adjusting holes, or by moving the position of the adjusting component in the oblong adjusting hole. Circular adjusting holes are suitable for situations where high adjustment precision is not required; the tightness of the fixing clamp can be adjusted in stages by selecting different positions of the circular adjusting holes. Oblong adjusting holes allow the adjusting component to move continuously within the hole, achieving more precise tightness adjustment. The chamfered edges of the adjusting holes prevent damage to the adjusting components from sharp edges during insertion and removal. The guide groove on the inner wall guides the adjusting component to be inserted smoothly, and the threaded structure ensures a tighter fit between the adjusting component and the adjusting hole, preventing loosening after adjustment.

[0063] Adjustment Component: The adjustment component consists of a fastening screw and a locking screw, with a fastening nut screwed onto the outside of the fastening screw. When the fastening nut is rotated, it moves axially along the fastening screw due to the thread. Since the adjusting plate is clamped between the head of the fastening nut and the fastening screw, the movement of the fastening nut changes the pressure on the adjusting plate, thereby adjusting the tightness of the retaining clip. When the fastening nut moves towards the adjusting plate, the pressure increases, the retaining clip tightens, and the wiring harness is more securely secured; when the fastening nut moves in the opposite direction, the pressure decreases, the retaining clip loosens, facilitating adjustment or disassembly of the wiring harness. The fastening screw and locking screw are made of high-strength alloy steel and have undergone surface treatment to ensure they are not easily deformed or corroded during pressure and long-term use. The anti-slip texture or knurling on the surface of the fastening nut increases friction, making it easier for operators to rotate the nut; the hexagonal or Phillips head of the fastening screw is compatible with tools such as wrenches or screwdrivers, facilitating torque application for adjustment.

[0064] Working principle of anti-detachment structure

[0065] Anti-loosening screw and anti-loosening sleeve: The anti-loosening screw is screwed into the anti-loosening groove at the bottom of the fastening screw, forming the first line of defense against loosening, preventing relative axial movement between the fastening screw and the anti-loosening screw. The anti-loosening sleeve, which is fitted externally to the anti-loosening screw, has three triangularly distributed limiting posts on its outer wall that engage with the helical groove on the fastening screw. When the fastening screw rotates, the limiting posts rotate with the fastening screw through the guiding action of the helical groove. Simultaneously, due to the stability of the triangular distribution, the limiting posts restrict the radial movement of the fastening screw, preventing tilting or shaking during operation. The thread-locking adhesive applied at the connection between the anti-loosening screw and the anti-loosening groove, after curing, fills the thread gap, enhancing the connection strength and effectively preventing loosening due to vibration. The high-precision machining of the helical groove ensures smooth engagement between the limiting posts and the fastening screw, reducing friction and wear.

[0066] The limiting post and stepped annular groove: The stepped annular groove on the outer wall of the fastening nut provides a space for the end of the limiting post. When the fastening nut rotates, the end of the limiting post rotates within the stepped annular groove. Simultaneously, the stepped structure of the groove restricts the axial movement of the limiting post, thus limiting the axial movement of the fastening nut and preventing it from falling off the fastening screw. The hardening treatment on the surface of the stepped annular groove improves its wear resistance and fatigue resistance, extending its service life. The grease added to the contact surface reduces friction between the end of the limiting post and the stepped annular groove, making rotation smoother and also providing rust prevention.

[0067] Working principle of buffer and protection structure

[0068] The components include a retaining ring, annular pressure plate, spring, and annular rubber sheet. The retaining ring, fixed to the fastening screw, provides positioning and support for the annular pressure plate, spring, and annular rubber sheet. When the fastening nut is tightened, the spring is compressed by the annular pressure plate, storing elastic potential energy. During vehicle operation, vibrations occur, and the spring releases this elastic potential energy through its extension and contraction, absorbing vibration energy and acting as a buffer to reduce the impact of vibration on the adjusting plate and the retaining clip. Under the pressure of the spring, the annular pressure plate presses downwards against the annular rubber sheet, ensuring a tight fit between the rubber sheet and the adjusting plate surface. The annular rubber sheet has good elasticity, reducing rigid contact between the fastening components and the adjusting plate, preventing damage from prolonged pressure, and also preventing dust and moisture from entering the adjusting structure. The guide structure on the retaining ring and annular pressure plate ensures that the spring moves in a fixed direction during compression and extension, preventing tilting or deformation and ensuring the stability of the buffering effect. The annular rubber sheet is made of aging-resistant and oil-resistant materials, adapting to harsh environments such as the automotive engine compartment and extending its service life.

[0069] The extrusion block is fixed to the lower edge of the annular pressure plate. When the annular pressure plate moves downward under the pressure of the spring, the extrusion block concentrates the pressure on a specific part of the adjusting plate. This concentrated pressure improves pressure transmission efficiency, allowing the adjusting plate to deform more evenly under pressure, ensuring that the fixing clips tighten or loosen uniformly, thus guaranteeing a more stable and reliable fixation of the wire harness. Surface treatments on the contact surfaces of the extrusion block and the adjusting plate, such as nickel or chrome plating, improve wear and corrosion resistance, reducing damage from long-term friction. The tiny protrusions or textures on the contact surfaces increase friction, preventing the extrusion block from sliding on the adjusting plate and further ensuring the stability of pressure transmission.

[0070] Working principle of heat dissipation structure

[0071] The heat dissipation layer on the inner wall of the wiring harness clip sleeve is bonded to the outer wall of the automotive wiring harness body. When the automotive wiring harness is working, it generates heat, which is transferred to the heat dissipation layer through thermal conduction. The heat dissipation layer uses materials with good thermal conductivity, such as aluminum foil, graphite sheets, or thermally conductive silicone, which can quickly transfer heat from the wiring harness body to all parts of the heat dissipation layer. Aluminum foil, with its high thermal conductivity, evenly diffuses heat; graphite sheets, with their excellent planar thermal conductivity, allow heat to be conducted rapidly along the planar direction; thermally conductive silicone acts as a buffer and seal while transferring heat. The heat dissipation fins on the surface of the heat dissipation layer increase the heat dissipation area, allowing for more effective heat exchange with the surrounding air and accelerating heat dissipation; the microporous structure increases airflow, promoting convective heat transfer and further improving heat dissipation efficiency. The heat dissipation layer is tightly bonded to the inner wall of the wiring harness clip sleeve using bonding or hot pressing methods, ensuring that heat can be smoothly transferred from the heat dissipation layer to the wiring harness clip sleeve, and then dissipated into the surrounding environment through the clip sleeve. This prevents the wiring harness from aging rapidly due to prolonged exposure to high temperatures, ensuring the operational stability and service life of the wiring harness.

[0072] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0073] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An adjustable automotive wiring harness fixing clip device, comprising a wiring harness clip sleeve (1), characterized in that, The wiring harness clip sleeve (1) has an internal fixed assembly of the automotive wiring harness body (2) and an external fixed assembly of three clips (3). Adjustment plates (4) are installed at both ends of the side wall opening of the fixed buckle (3). Adjustment holes (5) are opened on the side wall of the adjustment plate (4), and adjustment parts (6) are inserted into the adjustment holes (5). The adjusting component (6) includes a fastening screw (17) and an anti-loosening screw (10), and a fastening nut (7) is screwed onto the outside of the fastening screw (17). The bottom end of the fastening screw (17) is provided with an anti-loosening screw groove (8), and the anti-loosening screw (10) is screwed into the anti-loosening screw groove (8).

2. The adjustable automotive wiring harness fixing buckle device according to claim 1, characterized in that, The anti-detachment screw (10) is sleeved with an anti-detachment cylinder (9). The outer wall of the anti-detachment cylinder (9) is equipped with three limiting posts (19). The three limiting posts (19) are arranged in a triangle. The inner wall of each limiting post (19) is provided with a spiral groove (18) that cooperates with the fastening screw (17).

3. The adjustable automotive wiring harness fixing buckle device according to claim 2, characterized in that, The outer wall of the fastening nut (7) is provided with a stepped annular groove (11), and the end of the limiting post (19) is located in the stepped annular groove (11).

4. The adjustable automotive wiring harness fixing buckle device according to claim 1, characterized in that, A retaining ring (12) is fixedly installed on the upper outer end of the fastening screw (17), and an annular pressure plate (14), a spring (16) and an annular rubber sheet (15) are fitted on the circumferential surface of the fastening screw (17).

5. An adjustable automotive wiring harness fixing clip device according to claim 4, characterized in that, The annular pressure plate (14) is located on the upper side of the fixed ring (12), the spring (16) is located on the upper side of the annular pressure plate (14), the annular rubber sheet (15) is located on the lower side of the fixed ring (12), and a compression block (13) is fixedly installed at the lower edge of the annular pressure plate (14).

6. An adjustable automotive wiring harness fixing clip device according to claim 1, characterized in that, The inner wall of the wiring harness clip sleeve (1) is provided with a heat dissipation layer, and the heat dissipation layer is fitted to the outer wall of the automotive wiring harness body (2).

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