A bracket nut structure

By using a riveting method with a bracket nut structure, and employing an electric rivet gun and deformation post for compression fixation, the problem of loosening and falling off of automotive wiring harnesses on the inner panel of the vehicle body is solved, achieving a more stable wiring harness fixation.

CN224409146UActive Publication Date: 2026-06-26MIANYANG FANGZHAO ELECTRONIC TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MIANYANG FANGZHAO ELECTRONIC TECHNOLOGY CO LTD
Filing Date
2025-09-03
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the prior art, when automotive wiring harnesses are fixed to the vertical inner panel of the vehicle body by plastic clips, they are prone to loosening and falling off due to the weight of the wiring harness and vehicle vibration, which affects the normal arrangement of the wiring harness.

Method used

The bracket nut structure is adopted, and the deformation column is stretched and deformed by an electric rivet gun. It is then squeezed from both sides of the inner panel of the vehicle body by fixing bolts and fixing tubes. Combined with the first fixing frame and the second fixing frame, the automotive wiring harness is riveted and fixed to enhance stability.

Benefits of technology

It improves the secure fixation of automotive wiring harnesses to the inner panels of the vehicle body, reduces the risk of detachment due to vibration, and ensures stable installation of the wiring harness during driving.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224409146U_ABST
    Figure CN224409146U_ABST
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Abstract

The utility model discloses a support nut structure relates to the field of automobile wiring harness installation, including first fixed frame, the top of first fixed frame is connected with second fixed frame, the nut subassembly contains fixed peg, deformation column, fixed pipe and nut, the top of fixed peg is fixed with connecting column, the outer wall of connecting column is equipped with connecting pipe. The utility model nut subassembly is through electric radial gun and is deformed to the shrinkage of deformation column, makes the fixed peg and fixed pipe in nut subassembly through the extrusion from the both sides of car body inner panel, thereby makes nut subassembly fixed mounting on car body inner panel, subsequently installs automobile wiring harness between first fixed frame and second fixed frame, and first fixed frame and second fixed frame are fixed to automobile wiring harness together, and the mode of nut subassembly is fixed on car body inner panel through riveting is more firm compared with the mode of plastic piece buckle fixed on car body inner panel through buckle, and is not easy to fall off.
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Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness installation, specifically a bracket nut structure. Background Technology

[0002] Automotive wiring harnesses are the main network of automotive circuits and are important components connecting various electrical and electronic devices in a vehicle. They consist of various components such as wires, terminals, sheaths, tapes, and corrugated tubes. They are responsible for transmitting electrical energy and signals inside the vehicle to ensure its various functions. Automotive wiring harnesses are like the "neural network" of a car, spreading throughout the vehicle body. Their performance and the rationality of their layout directly affect the overall performance and reliability of the vehicle.

[0003] In the current automotive production process, automotive wiring harnesses are often secured using plastic clips. Specifically, the plastic clips are wrapped around the surface of the wiring harness, then aligned with pre-drilled holes on the inner panel of the vehicle body. A certain amount of external force is applied to insert the plastic clips into the holes. At this point, the clip components on the plastic clips engage with the edge of the holes to form a mechanical lock, thereby securing the plastic clips to the inner panel of the vehicle body, thus completing the laying and securing of the automotive wiring harness inside the vehicle body.

[0004] However, this method of fixing the plastic clips to the through holes in the vehicle body panel via clip assemblies has certain limitations. When the plastic clips are fixed to the vertical vehicle body panel, the weight of the wiring harness itself and the frequent vibrations generated during vehicle operation will continuously exert outward pulling and impact forces on the plastic clips. Over a long period of use, the clip assemblies of the plastic clips are prone to loosening, which can easily cause the plastic clips to detach from the through holes in the vehicle body panel, ultimately affecting the normal layout of the vehicle wiring harness. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a bracket nut structure to solve the technical problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a bracket nut structure, comprising a first fixing frame, a second fixing frame connected to the top of the first fixing frame, a nut assembly provided at the bottom of the first fixing frame, the nut assembly comprising a fixing bolt, a deformation column, a fixing tube and a nut, a connecting column fixed to the top of the fixing bolt, a connecting tube sleeved on the outer wall of the connecting column, and the end of the connecting tube fixedly disposed on the top outer wall of the first fixing frame.

[0007] By adopting the above technical solution, the problem of easy detachment when fixing automotive wiring harnesses to the vertical inner panel of the vehicle body using plastic clips is solved. The nut assembly is deformed by stretching the deformation column with an electric rivet gun, so that the fixing bolt and fixing tube in the nut assembly are pressed from both sides of the inner panel of the vehicle body, thereby fixing the nut assembly to the inner panel of the vehicle body. Then, the automotive wiring harness is installed between the first fixing frame and the second fixing frame. The first fixing frame and the second fixing frame together fix the automotive wiring harness. The method of fixing the nut assembly to the inner panel of the vehicle body by riveting is more secure and less prone to detachment than fixing it to the inner panel of the vehicle body by plastic clips.

[0008] The present invention is further configured such that a fixing plate is fixed on one side of both the first fixing frame and the second fixing frame, and a bolt is movably installed on the top of a set of fixing plates.

[0009] Preferably, the first fixing frame and the second fixing frame are fixed together by bolts through fixing plates fixed at their ends.

[0010] The present invention is further configured such that the inner walls of the first fixing frame and the second fixing frame are both arc-shaped, and the first fixing frame and the second fixing frame are both made of nylon material with added glass fiber.

[0011] Preferably, the first and second fixing brackets compress and fix the automotive wiring harness, and the nylon first and second fixing brackets will not scratch the outer wall of the automotive wiring harness.

[0012] The present invention is further provided with a convex ring on the bottom inner wall of the connecting pipe and a groove on the outer wall of the connecting column.

[0013] Preferably, the first fixing frame is fitted into the groove of the connecting column by a convex ring on the connecting tube at its bottom, thereby enabling the first fixing frame to rotate at any angle.

[0014] The present invention is further configured such that the inner wall of the first fixing frame is provided with a through hole, and the diameter of the through hole is equal to the outer wall diameter of the connecting column.

[0015] Preferably, when the nut assembly is fixedly installed on the inner panel of the vehicle body, the electric rivet gun can press the fixing bolt downward through the through hole on the inner wall of the first fixing bracket, thereby reducing the rotation of the fixing bolt during the process of fixing the nut assembly using the electric rivet machine.

[0016] The present invention is further configured such that a washer is provided at the bottom of the fixing bolt, and the outer wall of the nut assembly is connected to the inner panel of the vehicle body.

[0017] Preferably, when the nut assembly is fixedly installed on the inner panel of the vehicle body, the retaining bolt presses against the inner panel of the vehicle body through the washer, thereby reducing the damage caused by the retaining bolt pressing against the inner panel of the vehicle body.

[0018] The present invention is further configured such that four sets of through slits are provided on the outer wall of the deformable column.

[0019] Preferably, the through slot on the deformation column can change the internal structural strength of the deformation column, so that the deformation column deforms when the nut moves towards the fixing bolt.

[0020] In summary, the present invention has the following main advantages:

[0021] 1. This utility model solves the problem of easy detachment when automotive wiring harnesses are fixed to the vertical inner panel of the vehicle body using plastic clips by setting up a first fixing bracket, a second fixing bracket, a nut assembly, a connecting tube, and a convex ring. The nut assembly is deformed by stretching the deformation column with an electric rivet gun, so that the fixing bolt and fixing tube in the nut assembly are pressed from both sides of the inner panel of the vehicle body, thereby fixing the nut assembly to the inner panel of the vehicle body. Then, the automotive wiring harness is installed between the first fixing bracket and the second fixing bracket. The first fixing bracket and the second fixing bracket together fix the automotive wiring harness. The method of fixing the nut assembly to the inner panel of the vehicle body by riveting is more secure and less prone to detachment than fixing it to the inner panel of the vehicle body by plastic clips.

[0022] 2. This utility model solves the problem of different gaps between the first and second fixing frames when different combinations of automotive wiring harnesses are set up by setting up a pressing plate, a lead screw, a knob, and a fixing post. If there is a large gap between the automotive wiring harness and the two frames, the operator can manually rotate the knob. Due to the threaded connection between the lead screw fixed at the bottom of the knob and the fixing post, the rotating knob can drive the pressing plate to move vertically downward, thereby pressing and fixing the automotive wiring harness on the inner wall of the first fixing frame, preventing the automotive wiring harness from shaking inside the first and second fixing frames during vehicle operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall device of this utility model;

[0024] Figure 2 This is a schematic diagram of the unfolded second fixing frame of this utility model;

[0025] Figure 3 This is a schematic diagram of the device installation according to the present invention;

[0026] Figure 4 This is a schematic diagram of the installation components of this utility model;

[0027] Figure 5This is a schematic diagram of the fixing component of this utility model;

[0028] Figure 6 This is a schematic diagram of the adjustment component of this utility model;

[0029] Figure 7 This is a structural diagram of the adjustment component of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. First fixing bracket; 101. Second fixing bracket; 102. Fixing plate; 103. Bolt; 104. Through hole; 105. Connecting pipe; 106. Raised ring; 2. Fixing bolt; 201. Deformation post; 202. Through seam; 203. Fixing pipe; 204. Nut; 205. Connecting post; 206. Groove; 207. Washer; 3. Extrusion plate; 301. Frame plate; 302. Rubber sleeve; 303. Connecting block; 304. Screw rod; 305. Knob; 306. Fixing post; 4. Inner body panel. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] The embodiments of this utility model will be described below based on its overall structure.

[0034] First embodiment:

[0035] Please see Figure 1 — Figure 5 The system includes a first fixing frame 1, with a second fixing frame 101 connected to the top of the first fixing frame 1. A nut assembly is located at the bottom of the first fixing frame 1. The nut assembly includes a fixing bolt 2, a deformation post 201, a fixing tube 203, and a nut 204. A connecting post 205 is fixed to the top of the fixing bolt 2. The connecting tube 105 is sleeved on the outer wall of the connecting post 205, and the end of the connecting tube 105 is fixed to the top outer wall of the first fixing frame 1. This solves the problem that automotive wiring harnesses easily detach when fixed to the vertical inner panel of the vehicle body using plastic clips. The deformation column 201 is stretched and deformed by an electric rivet gun, so that the fixing bolt 2 and fixing tube 203 in the nut assembly are pressed from both sides of the inner panel 4 of the vehicle body, thereby fixing the nut assembly to the inner panel 4 of the vehicle body. Then, the automotive wiring harness is installed between the first fixing bracket 1 and the second fixing bracket 101. The first fixing bracket 1 and the second fixing bracket 101 together fix the automotive wiring harness. The method of fixing the nut assembly to the inner panel 4 of the vehicle body by riveting is more secure and less likely to fall off than fixing the plastic parts to the inner panel 4 of the vehicle body by clipping.

[0036] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 A fixing plate 102 is fixed on one side of the first fixing frame 1 and the second fixing frame 101. A bolt 103 is movably installed on the top of a set of fixing plates 102. The first fixing frame 1 and the second fixing frame 101 are fixed together by the fixing plates 102 fixed at their ends and the bolt 103.

[0037] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 The inner walls of the first fixing frame 1 and the second fixing frame 101 are both set to arc shape, and the first fixing frame 1 and the second fixing frame 101 are both made of nylon material with added glass fiber. The first fixing frame 1 and the second fixing frame 101 squeeze and fix the car wiring harness, and the nylon material of the first fixing frame 1 and the second fixing frame 101 will not scratch the outer wall of the car wiring harness.

[0038] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 and Figure 5 The bottom inner wall of the connecting pipe 105 is provided with a protrusion 106, and the outer wall of the connecting column 205 is provided with a groove 206. The first fixing frame 1 is fitted into the groove 206 of the connecting column 205 through the protrusion 106 on the connecting pipe 105 at its bottom, so that the first fixing frame 1 can rotate at any angle.

[0039] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 The inner wall of the first fixing bracket 1 has a through hole 104, and the diameter of the through hole 104 is equal to the outer wall diameter of the connecting column 205. When the nut assembly is fixedly installed on the inner panel of the vehicle body, the electric rivet gun can press the fixing bolt 2 downward through the through hole 104 on the inner wall of the first fixing bracket 1, thereby reducing the rotation of the fixing bolt 2 during the process of fixing the nut assembly using the electric rivet machine.

[0040] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 and Figure 3 The bottom of the fixing bolt 2 is provided with a washer 207, and the outer wall of the nut assembly is connected to the inner panel 4 of the vehicle body. When the nut assembly is fixedly installed on the inner panel 4 of the vehicle body, the fixing bolt 2 squeezes the inner panel 4 of the vehicle body through the washer 207, thereby reducing the damage caused by the fixing bolt 2 squeezing the inner panel 4 of the vehicle body.

[0041] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 The outer wall of the deformation column 201 is provided with four sets of through slots 202. The through slots 202 provided on the deformation column 201 can change the internal structural strength of the deformation column 201, so that when the nut 204 moves closer to the fixing bolt 2, the deformation column 201 deforms.

[0042] Second embodiment:

[0043] Please see Figure 6 The second fixing frame 101 has an internal pressing plate 3. The top of the pressing plate 3 is connected to a lead screw 304, and a knob 305 is installed on the top of the lead screw 304. A fixing post 306 is fixed to the top outer wall of the second fixing frame 101, and the fixing post 306 is threadedly connected to the lead screw 304. When the automotive wiring harness is installed inside the first fixing frame 1 and the second fixing frame 101, if there is a large gap between the automotive wiring harness and the two, the operator can manually rotate the knob 305. Due to the threaded connection between the lead screw 304 fixed at the bottom of the knob 305 and the fixing post 305, the rotating knob 305 can drive the pressing plate 3 to move vertically downward, thereby pressing and fixing the automotive wiring harness on the inner wall of the first fixing frame 1, preventing the automotive wiring harness from shaking inside the first fixing frame 1 and the second fixing frame 101 during vehicle operation.

[0044] For details regarding the above embodiments, please refer to [link / reference]. Figure 7 The extrusion plate 3 is composed of a skeleton plate 301 and a rubber sleeve 302. A connecting block 303 is movably installed inside the skeleton plate 301. The connecting block 303 is fixedly installed at the bottom of the lead screw 304. When the lead screw 304 rotates, the lead screw 304 can drive the extrusion plate 3 to move downward.

[0045] In practical operation, the nut assembly is first inserted into the reserved hole in the inner panel 4 of the vehicle body. Then, the output end of the electric rivet gun is inserted into the nut assembly through the through hole 104 on the inner wall of the first fixing bracket 1, so that the output end of the electric rivet gun contacts the nut 204 at the bottom of the nut assembly. During the operation of the electric rivet gun, the electric rivet gun is pressed against the top wall of the connecting column 205 at the top of the nut assembly. When the output end of the electric rivet gun is running, the output end drives the nut 204 to press upward, so that the nut 204 and the fixing tube 203 compress and shrink the deformation column 201 to produce shrinkage deformation. The deformed deformation column 201 and the fixing bolt 2 compress each other against the inner panel 4 of the vehicle body, so that the nut assembly is fixedly installed on the inner panel 4 of the vehicle body.

[0046] Then rotate the first fixing bracket 1 so that the port of the first fixing bracket 1 is set along the direction of the vehicle wiring harness laying route. Then flip the second fixing bracket 101 open and place the vehicle wiring harness inside the first fixing bracket 1. Then flip the second fixing bracket 101 over to cover the first fixing bracket 1. Fix the fixing plate 102 at the end of the second fixing bracket 101 to the fixing plate 102 on one side of the first fixing bracket 1 with bolts 103, so that the first fixing bracket 1 and the second fixing bracket 101 fix the vehicle wiring harness on the inner panel 4 of the vehicle body.

[0047] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A bracket nut structure, comprising a first fixing bracket (1), characterized in that: The top of the first fixing frame (1) is connected to the second fixing frame (101). The bottom of the first fixing frame (1) is provided with a nut assembly. The nut assembly includes a fixing bolt (2), a deformation column (201), a fixing tube (203) and a nut (204). The top of the fixing bolt (2) is fixed with a connecting column (205). The outer wall of the connecting column (205) is fitted with a connecting tube (105), and the end of the connecting tube (105) is fixed on the top outer wall of the first fixing frame (1).

2. The bracket nut structure according to claim 1, characterized in that: A fixing plate (102) is fixed on one side of both the first fixing frame (1) and the second fixing frame (101), and a bolt (103) is movably installed on the top of a set of fixing plates (102).

3. The bracket nut structure according to claim 1, characterized in that: The inner walls of the first fixing frame (1) and the second fixing frame (101) are both set to arc shape, and the first fixing frame (1) and the second fixing frame (101) are both made of nylon material with added glass fiber.

4. The bracket nut structure according to claim 1, characterized in that: The bottom inner wall of the connecting pipe (105) is provided with a protrusion (106), and the outer wall of the connecting column (205) is provided with a groove (206).

5. The bracket nut structure according to claim 1, characterized in that: The inner wall of the first fixing frame (1) is provided with a through hole (104), and the diameter of the through hole (104) is equal to the outer wall diameter of the connecting column (205).

6. The bracket nut structure according to claim 1, characterized in that: The bottom of the fixing bolt (2) is provided with a washer (207), and the outer wall of the nut assembly is connected to the vehicle body inner panel (4).

7. The bracket nut structure according to claim 1, characterized in that: The outer wall of the deformable column (201) has four sets of through seams (202).

8. The bracket nut structure according to claim 1, characterized in that: The second fixing frame (101) is provided with an extrusion plate (3) inside. The extrusion plate (3) is composed of a skeleton plate (301) and a rubber sleeve (302). A screw rod (304) is connected to the top of the extrusion plate (3). A knob (305) is installed on the top of the screw rod (304). A fixing post (306) is sleeved on the outer wall of the screw rod (304), and the fixing post (306) is threadedly connected to the screw rod (304).

9. A bracket nut structure according to claim 8, characterized in that: The frame plate (301) has a connecting block (303) movably installed inside, and the top of the connecting block (303) is connected to a lead screw (304).