CN216241766U

CN216241766U - Mounting fastener for automobile plastic parts

Info

Publication number: CN216241766U
Application number: CN202122357044.8U
Authority: CN
Inventors: 张越; 陈子昂; 宋佳玲
Original assignee: Changshu Institute of Technology
Current assignee: Changshu Institute of Technology
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-04-08
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a mounting fastener for automobile plastic parts, which comprises a U-shaped card body and a threaded hole arrangement part, wherein the U-shaped card body comprises a first side wall, a second side wall and a U-shaped connecting part, the U-shaped connecting part is respectively connected with the first side wall, the topside of second lateral wall is connected, screw hole setting part is the boss that extends to the direction that deviates from the second lateral wall by first lateral wall, screw hole setting part sets up the screw hole along self axial, first lateral wall, the second lateral wall is equipped with the first through-hole corresponding with the screw hole position respectively, first lateral wall or second lateral wall are equipped with the elasticity reed, the elasticity reed is inclined to first lateral wall and second lateral wall, the opening side that the link of elasticity reed and first lateral wall or second lateral wall is close to U type card body, the expansion end of elasticity reed is close to U type connecting portion, the elasticity reed is equipped with the second through-hole corresponding with first through-hole position. The utility model can prevent the installation fastener from sliding off in the installation process and improve the installation efficiency.

Description

Mounting fastener for automobile plastic parts

Technical Field

The utility model relates to a fastener, in particular to a mounting fastener for an automobile plastic part.

Background

Various plastic parts are fixedly mounted on a vehicle, usually nuts or buckles are selected, a plurality of buckles are generally matched in the buckle mounting process, and the nuts can fix parts in a relatively small number. In the prior art, the nut is a metal part, and the problems of heavy weight and high cost exist. Chinese patent publication No. CN212615745U discloses a mounting nut for plastic parts of an automobile, in which a screw hole is formed; including upper portion guard portion and major structure, upper portion guard portion is the U type of horizontal setting. The manufacturing of this scheme main solution mounting nut and the installation degree of difficulty are great, and when needs were with spare part fixed mounting in the border position of car, the problem of spare part's installation, make car border position change damage. However, when the structure is installed, the U-shaped upper protection part may not well clamp the part, and in the process of assembling the part at the lower edge in an inclined state, especially in a vertical state, the mounting nut for the plastic part of the automobile often slides out of the plastic part of the automobile, so that the mounting efficiency is affected.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a mounting fastener for an automobile plastic part, which solves the technical problem that the automobile plastic part is easy to slide out during assembly.

The technical scheme of the utility model is as follows: a mounting fastener for automobile plastic parts comprises a U-shaped clamp body and a threaded hole setting part, wherein the U-shaped clamp body comprises a first side wall, a second side wall and a U-shaped connecting part, the U-shaped connecting part is respectively connected with the top edges of the first side wall and the second side wall, the threaded hole setting part is a boss extending from the first side wall to the direction deviating from the second side wall, the threaded hole setting part is provided with a threaded hole along the self axial direction, the first side wall and the second side wall are respectively provided with a first through hole corresponding to the position of the threaded hole, the first side wall or the second side wall is provided with an elastic reed, the elastic reed is inclined to the first side wall and the second side wall, the connecting end of the elastic reed and the first side wall or the second side wall is close to the opening side of the U-shaped clamp body, and the movable end of the elastic reed is close to the U-shaped connecting part, the elastic spring leaf is provided with a second through hole corresponding to the first through hole.

Further, the aperture of the first through hole and the aperture of the second through hole are larger than the aperture of the threaded hole.

Furthermore, in order to facilitate the clamping of the automobile plastic parts into the U-shaped card body, a flared opening gradually expanding from inside to outside is formed on the opening side of the U-shaped card body.

Furthermore, the edge of the first side wall close to the opening side of the U-shaped card body is bent in the direction away from the second side wall to form a bent part, and the flaring is formed between the bent part and the second side wall.

Further, the spring reed is connected to the second side wall.

Further, in order to improve the strength of the threaded hole arrangement part and ensure the connection reliability, the boss comprises a conical table section and a cylindrical section, the conical table section is located between the cylindrical section and the first side wall or the second side wall, and the section of the connecting end of the conical table section and the cylindrical section is smaller than that of the other end of the conical table section.

Further, the conical frustum section is a conical frustum, and the cylindrical section is cylindrical.

The technical scheme provided by the utility model has the advantages that:

according to the utility model, by utilizing the elasticity of the material, after the automobile plastic part is inserted into the U-shaped card body, the movable end of the elastic reed is clamped into the automobile plastic part mounting hole, so that the elastic reed can be abutted against the inner wall of the automobile plastic part mounting hole when the mounting fastener slides, the mounting nut is prevented from sliding out of the automobile plastic part during assembly, and the mounting efficiency is improved. When the mounting fastener is dismounted, the elastic spring leaf can be hooked out from the mounting hole of the automobile plastic part to mount the fastener in a sliding manner, and the automobile plastic part cannot be damaged. The U-shaped connecting part of the U-shaped card body can wrap the corner positions of the automobile plastic parts, and the possibility of damage to parts is reduced. The structure of the utility model can be manufactured by plastic injection molding, so the manufacturing difficulty is lower.

Drawings

Fig. 1 is a perspective view showing a mounting fastener for an automotive plastic part according to the present invention.

Fig. 2 is a bottom perspective view of the mounting fastener for an automotive plastic part of the present invention.

Fig. 3 is a plan view of the mounting fastener for an automotive plastic part of the utility model.

Fig. 4 is a sectional view B-B of fig. 3.

Fig. 5 is a perspective view of the plastic part of the automobile without the mounting fastener.

Fig. 6 is a perspective view of the plastic part of the automobile after the fastener is mounted.

Fig. 7 is a top view of the plastic part of the automobile after installation of the mounting fastener.

Fig. 8 is a cross-sectional view C-C of fig. 7.

Detailed Description

The present invention is further described in the following examples, which are intended to be illustrative only and not to be limiting as to the scope of the utility model, which is to be given the full breadth of the appended claims and any and all equivalent modifications within the scope of the following claims.

Referring to fig. 1 to 4, the mounting fastener a for plastic parts of an automobile of the present embodiment is made of resin or plastic material by injection molding process, and includes a U-shaped card body 1 and a threaded hole installation portion 2, where the U-shaped card body includes a first side wall 101, a second side wall 102 and a U-shaped connection portion 103, and the U-shaped connection portion 103 is connected with top edges of the first side wall 101 and the second side wall 102 respectively to form a U shape with a downward opening. The screw hole setting part 2 is a boss extending from the first side wall 101 in a direction away from the second side wall 102, that is, the screw hole setting part 2 extends leftward from the first side wall 101. The threaded hole setting portion 2 includes two portions, a tapered step section 201 and a cylindrical section 202 which are tapered leftward in this order from the first side wall 101. Generally, the conical frustum section 201 is configured as a conical frustum, and the cylindrical section 202 is configured as a cylinder. The diameter of the end face of the truncated cone that connects to the cylinder is smaller than the diameter of the end face of the truncated cone that connects to the first side wall 101. In order to facilitate the screw disassembly and reduce the follow-up rotation problem of the mounting fastener A, the cylindrical section 202 can be set to be a hexagonal prism. The threaded hole setting portion 2 sets the threaded hole 4 along its own axial direction, that is, the threaded hole 4 is horizontal, and in this embodiment, the threaded hole 4 is set in a cylindrical shape, and in a truncated cone portion, the threaded hole 4 gradually expands until the first through hole 3 is formed in the first side wall 101, and the first through hole 3 is also formed in the second side wall 102 at a position corresponding to the first side wall 101.

The edge of the first side wall 101 close to the opening side of the U-shaped card body 1 is bent in a direction away from the second side wall 102 to form a bent part 101a, and a flaring gradually expanding from the inside to the outside of the U-shaped card body 1 is formed between the bent part 101a and the second side wall 102. The distance between the first side wall 101 and the second side wall 102 at the inlet of the U-shaped card body 1 is larger than the distance between the first side wall 101 and the second side wall 102 close to the U-shaped connecting part 103, so that the mounting fastener A can be conveniently clamped on the automobile plastic part D. In order to prevent the mounting fastener a from sliding off the plastic part D of the automobile, the second side wall 102 is provided with a spring reed 102a, the spring reed 102a is inclined to the first side wall 101 and the second side wall 102, and the connecting end of the spring reed 102a and the second side wall 102 is close to the opening side of the U-shaped card body 1. The other end of the elastic spring piece 102a is a movable end, which is close to the U-shaped connecting portion 103, and the movable end is generally made into a semicircular shape to facilitate the movable end to be clamped into the mounting hole 5 of the plastic part D of the automobile. The middle part of the elastic spring piece 102a is provided with a second through hole 6 corresponding to the position of the first through hole 3, and the aperture of the second through hole 6 is larger than that of the threaded hole 4.

When the fastener A is installed by using the utility model, the U-shaped card body 1 of the installation fastener A is firstly pushed towards the edge of the automobile plastic part D, so that the edge of the automobile plastic part D is clamped between the first side wall 101 and the second side wall 102 of the U-shaped card body 1, and at the moment, the elastic spring piece 102a is pressed by the automobile plastic part D and is attached to the second side wall 102. When the mounting hole 5 of the automobile plastic part D reaches the position opposite to the first through hole 3, the elastic reed 102a tilts under the action of the elastic force generated by the deformation of the elastic reed 102a, the movable end of the elastic reed 102a enters the mounting hole 5 of the automobile plastic part D (the aperture of the mounting hole 5 of the automobile plastic part D adopting the mounting fastener A is larger than that of the movable end of the spring reed 102 a), the movable end of the elastic reed 102a is abutted against the inner wall of the mounting hole 5 of the automobile plastic part D, so that the mounting fastener A can be prevented from reversely separating towards the pushing direction, and at the moment, the automobile plastic part D does not need to worry about the falling of the mounting fastener A even if the automobile plastic part D is moved at various angles or positions. When the plastic part D of the automobile is mounted at a predetermined position, the screw passes through the hole at the predetermined position, then sequentially passes through the first through hole 3 of the second sidewall 102, the second through hole 6 of the spring reed 102a, and the first through hole 3 of the first sidewall 101, and then is screwed into the screw hole of the screw hole mounting portion 2 to complete the mounting. When the automobile plastic part D is disassembled, the screw is firstly screwed out to separate the automobile plastic part D from the specified position of the installation, then the movable end of the elastic spring piece 102a is pulled by a hooking tool from the first through hole 3 of the second side wall 102, so that the elastic spring piece 102a is moved out of the installation hole 5 of the automobile plastic part D and attached to the second side wall 102, and then the installation fastener A can be removed.

Claims

1. A mounting fastener for automobile plastic parts comprises a U-shaped clamp body and a threaded hole arrangement part, wherein the U-shaped clamp body comprises a first side wall, a second side wall and a U-shaped connection part, the U-shaped connection part is respectively connected with the top edges of the first side wall and the second side wall, the threaded hole arrangement part is a boss extending from the first side wall to the direction deviating from the second side wall, the threaded hole arrangement part is axially provided with a threaded hole along the self-body, the first side wall and the second side wall are respectively provided with a first through hole corresponding to the position of the threaded hole, the mounting fastener is characterized in that the first side wall or the second side wall is provided with an elastic reed, the elastic reed is inclined to the first side wall and the second side wall, the connecting end of the elastic reed and the first side wall or the second side wall is close to the opening side of the U-shaped clamp body, and the movable end of the elastic reed is close to the U-shaped connection part, the elastic spring leaf is provided with a second through hole corresponding to the first through hole.

2. The mounting fastener for plastic parts for automobiles of claim 1, wherein the first through hole and the second through hole have a larger diameter than the threaded hole.

3. The mounting fastener for plastic parts of automobiles as claimed in claim 1, wherein the open side of said U-shaped card body is formed with a flaring gradually expanding from inside to outside.

4. The mounting fastener for plastic parts of automobiles of claim 3, wherein the edge of the first sidewall close to the opening side of the U-shaped card body is bent to the direction departing from the second sidewall to form a bent portion, and the flare is formed between the bent portion and the second sidewall.

5. The mounting fastener for plastic parts for automobiles of claim 4, wherein said spring reed is attached to said second side wall.

6. The mounting fastener for plastic parts for automobiles of claim 1, wherein said boss comprises a tapered step section and a cylindrical section, said tapered step section is located between said cylindrical section and said first side wall, and the section of the connecting end of said tapered step section and said cylindrical section is smaller than the section of the other end of said tapered step section.

7. The mounting fastener for plastic parts for automobiles of claim 6, wherein said conical frustum section is a conical frustum and said cylindrical section is a cylindrical.