Diameter-changing swimming ring

Abstract

The invention relates to a diameter-changing swimming ring. The diameter-changing swimming ring comprises a ring body, wherein the ring body comprises a supporting ring and an air sac ring sleeving the outer side of supporting ring; a diameter changing mechanism is arranged in the supporting ring, and comprises an upper annular plate, a rotating annular plate and a lower annular plate which are sequentially arranged in parallel, and the upper annular plate, the lower annular plate and the supporting ring are fixedly connected; the rotating annular plate is rotationally connected to the lower annular plate; a deflector rod is arranged on the rotating annular plate; a deflecting groove matched with the deflector rod is arranged on the upper annular plate; a plurality of rotating columns are arranged on the rotating annular plate around the circle center; a rotatable adjusting blade is arranged on each of the rotating columns; the adjusting blades are sequentially overlapped around the circle center of the rotating annular plate, so that a human body accommodating space of which the area can be changed through rotating the adjusting blades is formed by surrounding of the inner side edges of the adjusting blades; a limiting column is arranged on each adjusting blade; a plurality of arc-shaped limiting grooves are formed in the upper annular plate; and each limiting column is arranged in the corresponding limiting groove in a penetrating manner for sliding connection. According to the structure of the diameter-changing swimming ring disclosed by the invention, the diameter size can be changed according to the somatotype requirements.

Description

technical field [0001] The invention relates to a swimming ring, in particular to a variable-diameter swimming ring. Background technique [0002] Swimming rings are the most commonly used life-saving equipment when people swim. The size of existing swimming rings is mostly fixed. People of different sizes need to purchase models of different sizes. However, the sizes of swimming rings produced by businesses are limited, and most of them are based on It is designed according to the average waist circumference of a person, so it is difficult for people with different heights, shorts, fats and thins to find the right size for them. [0003] Chinese Patent No. ZL 201120333459.5 discloses an invention patent titled "a retractable swimming ring". The swimming ring described in this patent is composed of several independent ring body units, and the two ring body units are connected with Each of the airbags has an inflation valve, and the edge of the end face connected to the airb...

AI Technical Summary

Problems solved by technology

The disadvantages of this structure are: 1. When adjusting, it is necessary to inflate each ring body unit one by one, which is time-consuming and laborious; 2. The inner diameter of the swimming ring is divided into several sizes according to the number of inflated airbags, which still cannot satisfy the freedom according to the size of the human body. Adapt to everyone's needs

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