Fastening connecting component of vehicle plastic part

Abstract

The invention discloses a fastening connecting component of a vehicle plastic part. The fastening connecting component comprises a quick insertion nail and a quick insertion sleeve, wherein the quick insertion nail comprises a first back taper and a second back taper which are coaxially arranged, the second back taper is provided with a first annular boss and a second annular boss, an end is arranged at the upper end of the quick insertion sleeve, the lower part of the quick insertion sleeve is divided into petals, the lower end of each petal is bended towards the axial line of the quick insertion sleeve to form a locking claw, and the quick insertion nail is inserted into the quick insertion sleeve. According to the fastening connecting component disclosed by the invention, the upper end of the quick insertion nail is pressed, so that each locking claw of the quick insertion sleeve drops into the space between the first annular boss and the second annular boss on the second back taper, the quick insertion sleeve is expanded, and fastening connection can be finished; and the quick insertion nail is continuously pressed, each locking claw drops into the lower part of the first back taper by passing by the second back taper, the quick insertion sleeve is tucked, and the fastening connecting component can be conveniently taken off. With the adoption of the fastening connecting component of the vehicle plastic part, installation is convenient and rapid, connection is firm and reliable, assembly and disassembly for the second time are not influenced, and die complexity of the plastic part is lowered.

Description

technical field [0001] The invention belongs to the technical field of fastening connection structures, and in particular relates to a fastening connection assembly of plastic parts for vehicles. Background technique [0002] There are a large number of covering parts on the outer surface of motorcycles and automobiles. These covering parts are all plastic parts. In order to ensure the appearance quality, the gap between the covering parts should be as small as possible and the connection should be reliable. At present, the connection between a large number of vehicle panels in my country adopts a combination of self-tapping screws and card slots, such as figure 1 - as shown in 3. [0003] The self-tapping screw connection method requires screw holes on the plastic part I, and corresponding screw connection columns on the plastic part II. The self-tapping screw connection method has higher requirements on the mold of the plastic part I. When self-tapping When the diameter ...

AI Technical Summary

Problems solved by technology

Compared with the connection method of self-tapping screws, this connection method is easier to assemble and has stronger production consistency. However, due to the long-term stress of the hook 4, the plastic parts are prone to fatigue fracture, the reliability is not guaranteed, and the form of the barb increases. The difficulty of molds for plastic parts; the connection method of the clamping slot is assembled in one direction during installation, so it cannot limit the position in all directions at the same time, so the fastening connection of plastic parts for vehicles is generally clamping with the slot Mixed use of self-tapping screws meets the requirements of the fit gap for one-time assembly, but it cannot be guaranteed in terms of installation convenience, reliability, and secondary disassembly functionality.

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