Rivet part with double expansion function

Abstract

The invention discloses a rivet part with a double expansion function. The rivet part comprises a rivet and an expansion unit, the rivet comprises a rivet body and a rivet cap, the rivet body is provided with an expansion slot, the expansion slot is arranged in an inverted T shape and comprises a horizontal portion and a vertical portion, the expansion unit comprises an expansion component arranged at the horizontal portion of the expansion slot in an inlaid manner and an abutting pressing column arranged at the vertical portion of the expansion slot, the expansion component comprises two expansion bodies symmetrically arranged on two sides of the abutting pressing column and having sections being in right trapezoids, slopes of the expansion bodies are arranged to face the abutting pressing column, the side wall of the abutting pressing column is provided with position-limiting blocks, the position-limiting blocks are used for limiting the movement position of the abutting pressing column in the axial direction of the abutting pressing column, the bottom shape of the abutting pressing column is matched with the two expansion bodies, and the abutting pressing column moves in the vertical direction to abut and press the expansion bodies to move in the left and right direction. The rivet part with the double expansion function at least has the following advantages that double expansion can be realized well, and the expansion strength of riveting joints is guaranteed.

Description

technical field [0001] The invention relates to the technical field of connectors, in particular to a rivet with double expansion functions. Background technique [0002] A rivet is a nail-shaped object used to connect two parts or components with a through hole and a cap at one end. In the riveting process, the riveted parts are connected by their own deformation or interference. There are many types of rivets, and they are not limited to the form. Commonly used are semi-round head, flat head, countersunk rivet, blind rivet, and semi-tubular rivet, but they all include a rivet body with a rivet cap at one end. At present, in the process of riveting, the riveting is achieved by knocking the rivets into the through holes of the parts to be connected by interference fit, which only realizes one expansion and fixation. Due to the vibration in the work process, it is easy to shake, and the expansion force cannot meet the requirements. . Contents of the invention [0003] Th...

AI Technical Summary

Problems solved by technology

At present, in the process of riveting, the riveting is achieved by knocking the rivets into the through holes of the parts to be connected by interference fit, which only realizes one expansion and fixation. Due to the vibration in the work process, it is easy to shake, and the expansion force cannot meet the requirements.

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