Wire harness fixing support adaptive to wire harnesses of different specifications

Abstract

The utility model provides a kind of harness fixing support that can adapt to multiple specifications harness, including with the fixed mounting plate of car, hold tightly board, arc adjusting piece and adjusting screw rod, through hole is provided on mounting plate, installation column is provided in through hole, first locking nut is provided on the installation column in mounting plate side, hold tightly board is fixedly connected with the end of installation column away from first locking nut, arc adjusting piece is several and evenly distributed along the circumferential direction of hold tightly board, one end of each arc adjusting piece is hinged with the inner wall of hold tightly board by hinge shaft, other end is free end, free end is connected with mounting plate by adjusting screw rod, cylindrical locating projection is equipped on the side of arc adjusting piece towards the inner wall of hold tightly board, the inner wall of hold tightly board is provided with U-shaped arc slot corresponding and adapting with locating projection, locating projection is slidably connected in U-shaped arc slot.The utility model passes through the rotatable design of arc adjusting piece and the guidance constraint of U-shaped arc slot, the inner diameter of accommodating cavity can be flexibly adjusted within a certain range, can adapt to multiple specifications harness commonly used by car, and the cooperation between locating projection and U-shaped arc slot can accurately adjust piece movement track, avoid harness stress deviation due to uneven adjustment.

Description

Technical Field

[0001] This utility model relates to an automotive wiring harness fixing bracket, and more particularly to a wiring harness fixing bracket that can be adapted to multiple specifications of wiring harnesses. Background Technology

[0002] Automotive wiring harnesses are a core component of automotive circuitry and require mounting brackets for orderly arrangement to prevent insulation damage, short circuits, or functional failures caused by vibration and friction during vehicle operation. Currently, existing automotive wiring harness mounting brackets primarily employ a design using a fixed aperture clamping structure supplemented by straps, which has the following technical shortcomings: Firstly, the inner diameter of the clamping cavity of existing brackets is mostly a fixed size, which can only accommodate a single specification of wire harness. When different areas of the car need to fix wire harnesses of different diameters or types, multiple specifications of brackets need to be purchased, which not only increases the cost of car manufacturers, but also leads to frequent bracket replacements during the assembly process, reducing production efficiency.

[0003] Secondly, some brackets are fixed by bolts, and the contact between the clamping structure and the wiring harness is mostly line contact and point contact. During long-term vehicle operation, the wiring harness is prone to slight displacement due to high-frequency vibration, which can cause the bolts to loosen and the gap between the bracket and the wiring harness to increase. This may cause abnormal noise due to friction of the wiring harness or wear of the insulation layer, posing a safety hazard. Utility Model Content

[0004] To address the deficiencies or shortcomings of existing technologies, this utility model utilizes the rotatable design of the arc-shaped adjustment plate and the guiding constraint of the U-shaped arc groove. The inner diameter of the receiving cavity can be flexibly adjusted within a certain range, making it compatible with various specifications of wiring harnesses commonly used in automobiles. Furthermore, the cooperation between the positioning protrusion and the U-shaped arc groove can precisely adjust the movement trajectory of the plate, preventing the wiring harness from shifting due to uneven adjustment.

[0005] To achieve the above objectives, one or more embodiments of this utility model provide the following technical solutions: A wire harness fixing bracket adaptable to multiple specifications of wire harnesses includes a mounting plate for fixing to a vehicle, a clamping plate, an arc-shaped adjusting plate, and an adjusting screw. The mounting plate is provided with a through hole, and a mounting post is provided in the through hole. A first locking nut is provided on the mounting post located on one side of the mounting plate. The clamping plate is fixedly connected to the end of the mounting post away from the first locking nut, and a receiving cavity for accommodating the wire harness is formed between the clamping plate and the mounting plate.

[0006] The number of arc-shaped adjustment pieces is evenly distributed along the circumference of the clamping plate. One end of each arc-shaped adjustment piece is hinged to the inner wall of the clamping plate via a hinge shaft, and the other end is a free end. The free end is connected to the mounting plate via an adjustment screw. The side of the arc-shaped adjustment piece facing the inner wall of the clamping plate is provided with a positioning protrusion. The inner wall of the clamping plate is provided with a U-shaped arc-shaped slot that corresponds to and fits the positioning protrusion. The positioning protrusion slides and engages in the U-shaped arc-shaped slot.

[0007] Furthermore, the free end of the arc-shaped adjusting plate is provided with a clearance hole for the adjusting screw to pass through, and the clamping plate is provided with an internal thread hole adapted to the adjusting screw.

[0008] Furthermore, one end of the adjusting screw passes through the clearance hole and is threaded into the internal threaded hole, while the other end is fixedly connected to the locking knob.

[0009] Furthermore, the outer surface of the mounting column is provided with external threads, and a second locking nut is provided on the mounting column between the clamping plate and the mounting plate. The first locking nut and the second locking nut respectively abut against both sides of the mounting plate.

[0010] Furthermore, the clamping plate is selected to be arc-shaped.

[0011] Furthermore, the adjusting screw is provided with a limiting member, which abuts against the side of the arc-shaped adjusting plate away from the clamping plate.

[0012] Furthermore, the limiting component is a limiting nut, which is threadedly connected to the adjusting screw.

[0013] Furthermore, an elastic washer is provided between the limiting member and the arc-shaped adjusting piece.

[0014] Furthermore, mounting holes are respectively provided at the upper and lower ends of the mounting plate.

[0015] Furthermore, the mounting hole is an oblong hole, and an adjusting bolt for fixing the mounting plate to the vehicle is inserted inside the oblong hole.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, through the rotatable design of the arc-shaped adjustment piece and the guiding constraint of the U-shaped arc groove, allows the inner diameter of the receiving cavity to be flexibly adjusted within a certain range, which can be adapted to various specifications of wiring harnesses commonly used in automobiles. Furthermore, the cooperation between the positioning protrusion and the U-shaped arc groove can accurately determine the movement trajectory of the arc-shaped adjustment piece, avoiding the wire harness force deviation caused by uneven adjustment.

[0017] 2. The arc-shaped adjusting plate of this utility model makes surface contact with the wire harness and, together with the pre-tightening force of the elastic washer, forms a continuous clamping force to counteract the wire harness displacement caused by vehicle vibration.

[0018] 3. This utility model uses the U-shaped arc groove to constrain the positioning protrusion, which can prevent the adjustment piece from shifting laterally due to vibration, ensuring the stability of the clamping structure. In addition, during the adjustment process, the sliding trajectory of the positioning protrusion along the U-shaped arc groove can be observed intuitively. Combined with the deformation feedback of the elastic washer, it can quickly determine whether the adjustment piece is in contact with the wire harness, avoiding over-adjustment that may cause damage to the wire harness or under-adjustment that may cause loosening. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the wire harness fixing bracket of this utility model; Figure 2 This is a cross-sectional view of the connection between the arc-shaped adjusting plate and the clamping plate of this utility model; Figure 3 This is a front view of the wire harness fixing bracket of this utility model; Figure 4 This is a cross-sectional view of the arc-shaped adjusting plate of this utility model; Figure 5 This is a cross-sectional view of the position of the adjusting screw in this utility model; The components include: 1. Mounting plate; 2. Clamping plate; 3. Arc-shaped adjusting plate; 4. Adjusting screw; 5. Through hole; 6. Mounting post; 7. First locking nut; 8. Hinge shaft; 9. Positioning protrusion; 10. U-shaped arc groove; 11. Clearance hole; 12. Internal threaded hole; 13. Limit nut; 14. Elastic washer; 15. Second locking nut; 16. Mounting hole; 17. Adjusting bolt; 18. Hexagonal thin nut. Detailed Implementation

[0020] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention.

[0021] Where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0022] Example 1: like Figures 1 to 5 As shown, this embodiment provides a wire harness fixing bracket that can be adapted to multiple specifications of wire harnesses, including a mounting plate 1, a clamping plate 2, an arc-shaped adjusting piece 3, and an adjusting screw 4 for fixing to a vehicle. The mounting plate 1 is provided with a through hole 5, and a mounting post 6 is provided in the through hole. A first locking nut 7 is provided on the mounting post 6 located on one side of the mounting plate. The clamping plate is fixedly connected to the end of the mounting post away from the first locking nut 7, and a receiving cavity for accommodating the wire harness is formed between the clamping plate and the mounting plate.

[0023] Several arc-shaped adjustment plates 3 are evenly distributed along the circumference of the clamping plate. One end of each arc-shaped adjustment plate is hinged to the inner wall of the clamping plate through a hinge shaft 8, and the other end is a free end. The free end is connected to the mounting plate through an adjustment screw. The side of the arc-shaped adjustment plate facing the inner wall of the clamping plate is provided with a positioning protrusion 9. The inner wall of the clamping plate is provided with a U-shaped arc-shaped slot 10 that corresponds to and fits the positioning protrusion. The positioning protrusion slides and engages in the U-shaped arc-shaped slot.

[0024] In this embodiment, there are three arc-shaped adjustment plates, which are evenly distributed at 120° along the circumference of the clamping plate. The arc-shaped adjustment plates are made of spring steel and have good elastic deformation capability. Each arc-shaped adjustment plate has a hinge shaft mounting hole at one end, and a hinge shaft integrally formed with the clamping plate passes through the hole. The adjustment plate can rotate flexibly around the hinge shaft. The free end of the adjustment plate has a clearance hole 11 for the adjustment screw to pass through. The adjustment screw 4 passes through the clearance hole 11. The adjustment screw is made of steel and chrome-plated. The clamping plate has an internal thread hole 12 that matches the adjustment screw.

[0025] One end of the adjusting screw passes through the clearance hole of the arc-shaped adjusting plate and is threaded into the internal thread hole of the clamping plate. The other end of the adjusting screw is fixedly connected to a locking knob. The locking knob is made of nylon PA66 reinforced with glass fiber, and the outer surface is machined with annular anti-slip embossing to increase the grip friction and facilitate manual rotation operation.

[0026] To ensure the stability of the connection between the clamping plate and the adjusting screw, a limiting nut 13 is screwed onto the adjusting screw as a limiting component. The limiting component abuts against the side of the arc-shaped adjusting plate away from the clamping plate. The limiting nut 13 is threadedly connected to the adjusting screw 4, and an elastic washer 14 is provided between the limiting component and the arc-shaped adjusting plate. By tightening the limiting nut, the elastic washer can be in a slightly compressed state, which can both limit the arc-shaped adjusting plate and compensate for the vibration displacement of the adjusting plate through the elastic deformation of the washer, thereby enhancing the anti-loosening effect.

[0027] To ensure precise movement of the arc-shaped adjustment plate and prevent wire harness deviation due to uneven adjustment, this embodiment features an integrally formed cylindrical positioning protrusion on the side of the arc-shaped adjustment plate facing the inner wall of the clamping plate. Correspondingly, the inner wall of the clamping plate has a U-shaped arc-shaped groove 10 that corresponds one-to-one with the positioning protrusion. The positioning protrusion must be perpendicular to the side of the arc-shaped adjustment plate facing the clamping plate and protrude outward along the radial direction of the clamping plate, i.e., the protrusion points towards the center of the inner wall of the clamping plate. The U-shaped arc-shaped groove is adapted to the positioning protrusion, and the positioning protrusion slides into the U-shaped arc-shaped groove. When the adjustment plate rotates around the hinge axis, the positioning protrusion can slide smoothly along the groove, preventing lateral deviation of the adjustment plate and ensuring precise adjustment trajectory.

[0028] When in use, if it is necessary to fix a small-diameter wire harness, the locking knob can be rotated counterclockwise first, which will drive the adjusting screw to move outward along the internal thread hole of the clamping plate. The arc-shaped adjusting plate will rotate around the hinge axis of the cavity center under its own elasticity, and the positioning protrusion will slide towards the cavity center along the U-shaped arc groove until the inner diameter of the cavity is reduced to a suitable range.

[0029] Then, place the wire harness into the receiving cavity, rotate the locking knob clockwise, push the adjusting screw inward, so that the inner side of the adjusting plate is in contact with the surface of the wire harness, and continue to tighten the knob until the compression of the elastic washer reaches the compression requirement. At this time, the limit nut and the adjusting plate cooperate to lock the position, and the wire harness is stably clamped.

[0030] If a large-diameter wire harness needs to be secured, rotate the locking knob counterclockwise to fully retract the adjusting screw to its maximum stroke. The arc-shaped adjusting plate rotates around the hinge axis to the outside of the receiving cavity, and the positioning protrusion slides along the slot towards the cavity wall, expanding the inner diameter of the receiving cavity to a suitable range. After placing the bundled large-diameter wire harness into the receiving cavity, rotate the locking knob clockwise to push the adjusting plate to tighten until the adjusting plate is fully in contact with the surface of the wire harness. The preload of the elastic washer maintains a tight grip, meeting the fixing requirements in a vehicle vibration environment.

[0031] When it is necessary to disassemble the wire harness, simply rotate the locking knob counterclockwise to disengage the adjusting screw, and the adjusting plate will open naturally, allowing you to directly remove the wire harness without the need for any tools.

[0032] The arc-shaped adjustment piece makes contact with the surface of the wiring harness, and together with the pre-tightening force of the elastic washer, it forms a continuous clamping force, which can counteract the displacement of the wiring harness caused by vehicle vibration. During the adjustment process, the sliding trajectory of the positioning protrusion along the U-shaped arc groove can be observed intuitively. Combined with the deformation feedback of the elastic washer, it can quickly determine whether the adjustment piece is in contact with the wiring harness, avoiding over-adjustment that may cause damage to the wiring harness or under-adjustment that may cause loosening.

[0033] In this embodiment, the mounting plate 1 serves as a support mechanism for all other components. The plate body can be made of Q235 cold-rolled steel plate in an arc shape. The mounting column 6, which passes through the through hole, has external threads on its outer surface. A second locking nut 15 is provided on the mounting column between the clamping plate and the mounting plate. The first locking nut 7 and the second locking nut 15 abut against the two sides of the mounting plate respectively. By tightening the two locking nuts, the mounting column 6 and the mounting plate 1 can be rigidly fixed to prevent relative rotation or axial displacement between the two.

[0034] To facilitate the fixing of the mounting plate to the vehicle body, this embodiment has mounting holes 16 at the upper and lower ends of the mounting plate. The mounting holes in this embodiment are oblong holes, and adjusting bolts 17 for fixing the mounting plate to the vehicle are inserted into the oblong holes. A hexagonal thin nut 18 is also provided. The mounting plate can be fixed in the preset installation position of the vehicle by adjusting the bolts. After the bolts are loosened, the mounting plate can slide along the length of the oblong mounting hole to achieve fine adjustment of the lateral position of the bracket. The shape of the mounting hole can be freely adjusted according to the actual installation requirements. There is no limitation on the shape of the mounting hole, as long as it can ensure a stable connection between the mounting plate and the vehicle body.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wire harness fixing bracket adaptable to multiple specifications of wire harnesses, characterized in that, The device includes a mounting plate, a clamping plate, an arc-shaped adjusting plate, and an adjusting screw that are fixed to the vehicle. The mounting plate has a through hole and a mounting post is provided in the through hole. A first locking nut is provided on the mounting post located on one side of the mounting plate. The clamping plate is fixedly connected to the end of the mounting post away from the first locking nut, and a receiving cavity for accommodating the wire harness is formed between the clamping plate and the mounting plate. The number of arc-shaped adjustment plates is evenly distributed along the circumference of the clamping plate. One end of each arc-shaped adjustment plate is hinged to the inner wall of the clamping plate via a hinge shaft, and the other end is a free end. The free end is connected to the mounting plate via an adjustment screw. The side of the arc-shaped adjustment plate facing the inner wall of the clamping plate is provided with a cylindrical positioning protrusion. The inner wall of the clamping plate is provided with a U-shaped arc-shaped slot that corresponds to and fits the positioning protrusion. The positioning protrusion slides and engages in the U-shaped arc-shaped slot.

2. The wire harness fixing bracket adaptable to multiple specifications of wire harnesses as described in claim 1, characterized in that, The free end of the arc-shaped adjusting plate has a clearance hole for the adjusting screw to pass through, and the clamping plate has an internal thread hole that matches the adjusting screw.

3. A wire harness fixing bracket adaptable to multiple specifications of wire harnesses as described in claim 1, characterized in that, One end of the adjusting screw passes through the clearance hole and is threaded into the internal threaded hole, while the other end is fixedly connected to the locking knob.

4. A wire harness fixing bracket adaptable to multiple specifications of wire harnesses as described in claim 1, characterized in that, The outer surface of the mounting post is provided with external threads, and a second locking nut is provided on the mounting post between the clamping plate and the mounting plate. The first locking nut and the second locking nut respectively abut against the two sides of the mounting plate.

5. A wire harness fixing bracket adaptable to multiple specifications of wire harnesses as described in claim 1, characterized in that, The clamping plate is made of arc shape.

6. A wire harness fixing bracket adaptable to multiple specifications of wire harnesses as described in claim 1, characterized in that, The adjusting screw is provided with a limiting member, which abuts against the side of the arc-shaped adjusting plate away from the clamping plate.

7. A wire harness fixing bracket adaptable to multiple specifications of wire harnesses as described in claim 6, characterized in that, The limiting component is a limiting nut, which is threadedly connected to the adjusting screw.

8. A wire harness fixing bracket adaptable to multiple specifications of wire harnesses as described in claim 7, characterized in that, An elastic washer is provided between the limiting component and the arc-shaped adjusting piece.

9. A wire harness fixing bracket adaptable to multiple specifications of wire harnesses as described in claim 1, characterized in that, The mounting plate has mounting holes at its upper and lower ends.

10. A wire harness fixing bracket adaptable to multiple specifications of wire harnesses as described in claim 9, characterized in that, The mounting hole is an oblong hole, and an adjusting bolt for fixing the mounting plate to the vehicle is inserted inside the oblong hole.

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