Fast-assembly connecting structure and nut-free hammering fixing method

Abstract

The invention provides a fast-assembly connecting structure and a nut-free hammering fixing method, relates to the technical field of connecting structures, and solves the technical problems that in the prior art, an existing connecting mode is complex in installation process and infirm in installation. The fast-assembly connecting structure comprises a connecting piece and a metal sheet, whereinthe connecting piece comprises a limiting part and a column part, annular protrusions are arranged on the column part, an inserting groove is formed between every two adjacent annular protrusions, andthe side, away from the limiting part, of each inserting groove is obliquely arranged to form an abutting face; and a mounting hole is formed in the metal sheet, the column part is inserted into themounting hole, then the inner edge of the mounting hole is bent and inserted into the inserting grooves, and the inner edge of the mounting hole abuts against the abutting faces. The relative positions of the connecting piece and the metal sheet can be effectively limited through the toughness of the metal sheet and in cooperation with the limiting part and the abutting faces, the installation isfirm, the installation can be realized only through the inserting action of the connecting piece in the whole operation process, and thus the operation is convenient and fast.

Description

technical field [0001] The invention relates to the technical field of connection structures, in particular to a quick-fit connection structure and a nutless hammering fixing method. Background technique [0002] Existing connection methods include bolt and nut fixing method, self-tapping fixing method, self-drilling wire fixing method, rivet fixing method, rivet nut fixing method, hot drilling stretching and tapping method, etc. [0003] When the existing bolt and nut fixing method is operated, it is usually necessary to operate the nut and the bolt at the same time to realize the connection and fixation, and the operation process is cumbersome; [0004] When the existing self-tapping fixing method or self-drilling wire fixing method is operated, if the tapping or drilling force is too large, it is easy to cause the phenomenon of slipping and the fixing is not firm enough; [0005] When the existing blind rivet fixing method is operated, the installation process is complic...

AI Technical Summary

Problems solved by technology

[0008] One of the purposes of the present invention is to provide a quick-fit connection structure to solve the technical problems of the existing connector installation process in the prior art that are relatively cumbersome and the installation is not firm; the preferred technology among the many technical solutions provided by the present invention Many technical effects that can be produced by the scheme (the diameter of the installation hole is smaller than the outer diameter of the annular protrusion, it is convenient to push the inner edge of the installation hole to bend during installation, so as to realize the installation of the connector and the metal sheet; the column is inserted into the Inside the installation hole, the inner edge of the installation hole can be bent to form a bending section. The bending section is perpendicular to the insertion surface, and cooperates with the limit part, and the limit effect is remarkable, so that the installation is more firm; the insertion slot is close to the limit part. One side is set as an arc-shaped surface, which reduces the resistance of the ring-shaped protrusion to the inner edge of the metal sheet installation hole during connection, and the installation is more labor-saving; the ring-shaped protrusion is set as a spiral protrusion, which is convenient for production and has a more diverse structure; installation The hole is connected with a straight seam, on the one hand, through the toughness of the metal sheet itself, it is convenient for the fast entry of the column of the connector, and on the other hand, it is convenient to bend the inner edge of the metal sheet; the end of the straight seam away from the installation hole is provided with an anti-crack hole , to effectively prevent the metal sheet from being cracked by the impact of the connecting piece during installation; the end of the column part away from the limit part is provided with a chamfer, which is further convenient for installation, etc.); see below for details

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