A combined fastener for automotive use

Abstract

The utility model provides a kind of automobile with iron hitch rivet combined fastener, including blind hole rivet nut and bolt, the blind hole rivet nut is divided into head, middle and tail, when being in initial structure state before installation, head outer surface is hexagonal shape structure, inside is circular groove and without thread, middle outer surface is the hexagonal cylinder section smaller than head diameter, tail outer surface structure is gradually changed from the hexagonal cylinder structure of middle to cylindrical, until tail end face is circular, the end face of this tail is blind hole structure of plugging, and the inner communicating groove diameter of middle and tail is smaller than the circular groove diameter in head inner, the utility model is directly fastened by using rivet tool blind hole rivet nut on the metal plate body of automobile iron hitch part, after fixing, iron hitch wire can be installed from the side of plate body, without upper and lower sides operation simultaneously, complete fast and easy installation, simultaneously, blind hole rivet nut is hexagonal cylinder structure in rivet, with anti-skid effect when tightening operation.

Description

Technical Field

[0001] This utility model mainly relates to the field of automotive electronic components technology, specifically a grounding rivet assembly fastener for automobiles. Background Technology

[0002] Grounding rivet fasteners are a type of fastener used to secure automotive grounding wires.

[0003] Traditional grounding fasteners often require simultaneous operation on both the top and bottom sides of the automotive metal panel. For example, installing a nut on the top side while simultaneously tightening or performing other fixing operations on the bottom side is not only cumbersome but also difficult to complete efficiently in space-constrained situations (such as the narrow installation space inside a car). This results in a lengthy and inefficient installation process, failing to meet the demand for quick and easy installation. During the tightening process, traditional nut structures may slip under force due to smooth surfaces or unreasonable designs, leading to unstable tightening and affecting the reliability of the grounding connection. Secondly, the bottom structure of traditional grounding fasteners may not be a sealed blind hole design. During the electrophoresis process, it is impossible to prevent electrophoresis from entering the inner hole, which can affect conductivity after grounding. Utility Model Content

[0004] This utility model mainly provides a grounding riveting fastener for automobiles to solve the technical problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A grounding rivet assembly fastener for automobiles includes a blind hole rivet nut and a bolt, characterized in that: the blind hole rivet nut is divided into a head, a middle part and a tail part. When in the initial structural state before installation, the head has a hexagonal outer surface and a circular groove inside without threads. The middle part has a hexagonal prism segment with a diameter smaller than that of the head. The tail part gradually deforms from the hexagonal prism structure of the middle part to a cylindrical shape until the end face of the tail part is circular. The end face of the tail part is a blind hole sealing structure. The diameter of the inner connecting groove of the middle part and the tail part is smaller than the diameter of the circular groove inside the head part. Threads are provided along the inner wall of the groove connecting the middle part and the tail part. The bolt consists of a hexagonal flange head and a screw structure. The top of the head is a hexagonal column section, which is integrally connected to the flange structure. The screw and the hexagonal flange structure are integrally formed, and the screw has full threads, corresponding to the connecting grooves at the head, middle and tail of the blind hole rivet nut.

[0006] Preferably, when the blind hole rivet nut is connected to the bolt, the thread on the screw structure is threadedly connected to the connecting groove of the head, middle and tail of the blind hole rivet nut, and the blind hole rivet nut and the bolt will remain tightly connected during the electrophoresis process.

[0007] Preferably, the blind hole rivet nut is riveted to the ground plate of the car. The hexagonal column structure in the middle of the blind hole rivet nut is deformed by the tension of the riveting operation. The deformed structure has an I-shaped cross section and is fastened to the ground plate of the car. The bolt and the blind hole rivet nut are fastened together. At the same time, a grounding terminal is installed between the flange structure of the blind hole rivet nut and the bolt.

[0008] Preferably, the hexagonal column structure in the middle of the blind hole rivet nut is shortened after being riveted, ensuring a tight and secure connection with the vehicle's ground plate and maintaining a tight connection after being assembled and tightened with bolts.

[0009] Preferably, the blind hole rivet nut and bolt are made of aluminum or aluminum alloy.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Use a rivet tool to directly fasten the blind hole rivet nut to the metal plate of the car's grounding part. After fixing, the grounding wire can be installed from one side of the plate without having to work on both sides at the same time, completing the installation quickly and easily. At the same time, the rivet part of the blind hole rivet nut has a hexagonal prism structure, which has an anti-slip function during tightening.

[0011] 2. The bottom of the blind hole rivet nut has a sealed blind hole structure, which can prevent electrophoresis from entering the inner hole during electrophoresis and prevent grounding from affecting the conductivity.

[0012] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0013] Figure 1 This is a front view of the overall structure of this utility model; Figure 2 This is a front sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the structure of the blind hole rivet nut before the riveting operation of this utility model; Figure 4 This is a schematic diagram of the grounding terminal structure of this utility model.

[0014] The attached diagram is labeled as follows: 1. Blind hole rivet nut; 2. Bolt; 5. Grounding terminal. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive. Example

[0016] Please refer to the appendix carefully. Figure 1-4 A type of automotive grounding rivet fastener, comprising a blind hole rivet nut 1 and a bolt 2, wherein both the blind hole rivet nut 1 and the bolt 2 are made of aluminum or aluminum alloy. The blind hole rivet nut 1 can be structurally divided into a head, a middle section, and a tail section. In its initial uninstalled state, the head of the blind hole rivet nut 1 has a hexagonal shape with a circular groove inside, which is initially unthreaded. The middle section of the blind hole rivet nut 1 has a hexagonal prism with a diameter smaller than that of the head. The tail section of the blind hole rivet nut 1 gradually transforms from the hexagonal prism structure in the middle section to a cylindrical shape until the tail end face is circular, and this tail end face is a blind hole sealing structure. The diameter of the inner connecting groove between the middle and tail sections of the blind hole rivet nut 1 is smaller than the diameter of the circular groove inside the head, and threads are provided along the inner wall of the connecting groove between the middle and tail sections. The bolt 2 consists of a hexagonal flange head and a bolt structure. The top is a hexagonal column section with an integrated flange structure. The screw and the hexagonal flange are integrally formed. The screw has full threads, which correspond to the connecting grooves at the head, middle, and tail of the blind hole rivet nut 1. When the blind hole rivet nut 1 is connected to the bolt 2, the threads on the screw structure will connect with the connecting grooves at the head, middle, and tail of the blind hole rivet nut 1. The blind hole rivet nut 1 is riveted to the ground plate of the car. During the riveting installation process, the blind hole rivet nut 1... The central hexagonal column structure will deform under the tension of the riveting operation. The deformed structure has an I-shaped cross section, which can be fastened to the vehicle's ground plate. The bolt 2 and the blind hole rivet nut 1 are fastened together. At the same time, a grounding terminal 5 is installed between the flange structure of the blind hole rivet nut 1 and the bolt 2. After the central hexagonal column structure of the blind hole rivet nut 1 is riveted, its length will be reduced, ensuring a tight and firm connection with the vehicle's ground plate and a tight connection after assembly and fastening with the bolt 2.

[0017] The specific operation method of this utility model is as follows: In the initial state, the hexagonal head structure and the unthreaded circular groove of the blind hole rivet nut 1, as well as the structural features of the middle and tail sections, are riveted to the position of the vehicle grounding plate. The hexagonal column structure in the middle of the blind hole rivet nut 1 is deformed into an I-shape under the riveting force, and is firmly fastened to the grounding plate. The hexagonal flange structure and the fully threaded bolt 2 are inserted into the blind hole rivet nut 1 and cooperate with each other. The thread of the bolt 2 is tightly engaged with the threaded grooves of the head, middle and tail of the blind hole rivet nut 1, achieving a preliminary connection. During the electrophoresis process, the two remain tightly connected to prevent electrophoresis from seeping into the interior of the blind hole rivet nut 1. After electrophoresis, the grounding terminal 5 is installed between the blind hole rivet nut 1 and the flange structure of the bolt 2. A tightening force is applied to ensure that the bolt 2 remains tightly connected to the blind hole rivet nut 1 and the grounding terminal 5 after tightening, thereby achieving reliable fixing and grounding connection of the vehicle grounding.

[0018] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A combined fastener for automotive use, comprising a blind rivet nut (1) and a bolt (2), characterized in that: The blind hole rivet nut (1) is divided into a head, a middle part and a tail. When it is in the initial structural state before installation, the head has a hexagonal shape and a circular groove inside without threads. The middle part has a hexagonal column section with a diameter smaller than that of the head. The tail part gradually changes from the hexagonal column structure of the middle part to a cylindrical shape until the end face of the tail part is circular. The end face of the tail part is a blind hole sealing structure. The diameter of the inner connecting groove of the middle part and the tail part is smaller than the diameter of the circular groove inside the head part. Threads are provided along the inner wall of the groove connecting the middle part and the tail part. The bolt (2) is divided into a screw head and a screw rod structure. The top of the screw head is a hexagonal column section, which is integrally connected with a circular cap structure. The screw rod and the circular cap structure are also integrally formed. The screw rod has a threadless section at one end near the circular cap structure, which corresponds to the circular groove at the head of the blind hole rivet nut (1). The screw rod has a threaded section at one end away from the circular cap structure, which corresponds to the connecting groove between the middle and the tail of the blind hole rivet nut (1).

2. The combined fastener for use in a vehicle according to claim 1, wherein When the blind hole rivet nut (1) is connected to the bolt (2), the threaded section on the screw structure is threadedly connected to the connecting groove of the middle and tail of the blind hole rivet nut (1), and the blind hole rivet nut (1) and the bolt (2) will remain tightly connected during the electrophoresis process.

3. The automotive grounding rivet assembly fastener according to claim 1, characterized in that, The blind hole rivet nut (1) and bolt (2) are riveted and installed at the ground plate of the car. The hexagonal column structure in the middle of the blind hole rivet nut (1) is deformed by the tension of the riveting operation. The deformed structure is I-shaped and fastened to the ground plate of the car. The bolt (2) is fastened to the blind hole rivet nut (1). At the same time, a grounding terminal (5) will be installed between the circular cap structure of the blind hole rivet nut (1) and the bolt (2).

4. The automotive grounding rivet assembly fastener according to claim 1, characterized in that, The central hexagonal column structure of the blind hole rivet nut (1) is reduced in length after being riveted, ensuring a tight and secure connection with the car's ground plate and maintaining a tight connection after being assembled and tightened with the bolt (2).

5. The automotive grounding rivet assembly fastener according to claim 1, characterized in that, The blind hole rivet nut (1) and bolt (2) are made of aluminum material or aluminum alloy material.

Images