Shaft hole locking device

Abstract

The invention relates to the technical field of outdoor leisure equipment, in particular to a shaft hole locking device. The device comprises a first rotary matching part, a rotating shaft and a second rotary matching part, wherein the rotating shaft comprises a rotating shaft main body, a limiting part and an elastic part; one end of the rotating shaft main body is fixedly connected to the first rotary matching part; a shaft hole is formed in the second rotary matching part; the rotating shaft main body is arranged in the shaft hole; the elastic part is arranged between the second rotary matching part and the rotating shaft main body; the limiting part runs through the shaft hole and is fixedly connected to the rotating shaft main body; an annular convex ring is arranged in the middle of an inner ring of the shaft hole; a plurality of clamping grooves are formed in the bottom of the inner ring of the shaft hole in the outer side of the annular convex ring in a circumferential direction; a limiting convex ring is arranged on the outer side of the limiting part; the limiting convex ring abuts against the annular convex ring; and a plurality of clamping teeth, which are clamped with the clamping grooves, are formed in an outer ring of the limiting part on the outer side of the limiting convex ring in a circumferential direction.

Description

technical field [0001] The invention relates to the technical field of outdoor leisure equipment, in particular to a shaft hole locking device. Background technique [0002] In outdoor leisure, people like to lie on the leisure chair to read books and chat; at the same time, they often carry items such as mobile phones and drinks during leisure. These articles are mostly placed on the tray beside the seat, but the existing trays are all fixedly installed on the seat, have very single functions, and cannot be fully utilized. In addition, most of the seats installed on the tray are folding seats, and the problem of folding after folding is also considered during use, which often results in a large thickness of the folding chair and takes up a lot of space. [0003] The applicant has applied for a seat tray, which includes a tray body; the seat tray also includes an upper fixed base and a lower fixed base; the upper fixed base includes a universal connection seat and a fixed b...

AI Technical Summary

Problems solved by technology

Most of these items are placed on the tray next to the seat, but the existing trays are fixedly installed on the seat, have very single functions, and cannot be fully utilized

In addition, most of the seats installed on the tray are folding seats, and the problem of folding after folding is also considered when using, which often results in a large thickness of the folding chair and takes up more space

Images