Expansion bolt kit and using method thereof

Abstract

The invention discloses an expansion bolt kit. The expansion bolt kit comprises a bolt and an expansion casing, and the bolt is connected with the expansion casing in a sleeved mode; an expansion partis arranged at one end of the expansion casing, the expansion part is provided with longitudinal notches which are evenly distributed along the circumference of the expansion part, so that the expansion part is divided into expansion blocks which can expand outward; the bolt comprises a screw rod and a bolt head, and the screw rod comprises an unthreaded rod part which is close to one end of thebolt head and a threaded part which is arranged at the other end of the unthreaded rod part; the outer wall of the unthreaded part is smooth, and an external thread is arranged on the outer wall of the threaded part; and the expansion casing comprises two oppositely-closing half casings, each half casing comprises an upper part and a lower part, and the half casings are connected into one throughan lock catch structure. The structure is simple, installing and disassembling are convenient, the utilization rate of the expansion bolt kit is improved, stability performance of connecting pieces isgreatly improved, so that connection is more firm and reliable. The invention further discloses a using method of the expansion bolt kit.

Description

technical field [0001] The invention belongs to the technical field of bolt sets, and in particular relates to an expansion bolt set and a using method thereof. Background technique [0002] Three-in-one connectors, also known as fasteners or combiners, are generally composed of eccentric wheels, connecting rods and embedded nuts. They are mainly used for the connectors of panel furniture, especially the vertical connection between panels of panel furniture or three panels. Interactive connection can realize the horizontal connection of two boards, generally used for medium density board, high density board and particle board. Specifically, using the radian of the torsion bending angle at the bottom of the eccentric wheel that deviates from the center of the circle, when the cross screw groove of the eccentric wheel is turned by the corkscrew, the connecting rod stuck in the radian will be pulled toward the center of the eccentric wheel along the radian, so that the connecti...

AI Technical Summary

Problems solved by technology

The application number is 2016104925744, which is a top-tightening expansion bolt, which discloses the top-tightening expansion bolt. This kind of expansion bolt has the following defects: 1. There are many consumables, and the installation steps are not simple. 2. The hemispherical head pushes the expansion block 3. When installing the expansion bolt, it is necessary to knock in the sleeve first, and then screw in the bolt, and it is difficult to take out the sleeve for replacement, especially the embedded parts or the knocked-in sleeve are difficult to take out or need to be drilled again Hole embedded parts, cannot be reused

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