Waist twisting device having protecting function

Abstract

The invention relates to a waist twisting device having a protecting function. The device comprises a hand rack, wherein a waist twisting mechanism is arranged on the periphery of the hand rack; the waist twisting mechanism comprises a vertical drum which is vertically buried in the ground; a horizontal bearing is arranged in the vertical drum; a round rod is inserted on an inner ring of the bearing; a rotary disc is arranged at the free end of the round rod; a round ring, which is coaxial with the rotary disc, is arranged on the periphery of the rotary disc; a plurality of opening limiting grooves are formed in the upper end face of the round ring at intervals; the widths of the various opening limiting grooves are sequentially increased; a compression spring is additionally arranged on the side face of the vertical drum; one end of the compression spring abuts against a convex shoulder at the lower side of the vertical drum and the other end abuts against the round ring; a horizontallimiting pillar, which protrudes outwards, is arranged on the outer circumference of the rotary disc; and the horizontal limiting pillar is arranged in any one of the opening limiting grooves. Basedupon cooperation between the horizontal limiting pillar and the opening limiting grooves, motions of the horizontal limiting pillar can be limited by the opening limiting grooves, so that a rotating angle of the rotary disc is subsequently limited; and by forming the opening limiting grooves which are different in width in the round ring at intervals, the rotating angle of the rotary disc is regulated and controlled.

Description

Technical field [0001] The invention relates to the technical field of fitness equipment, in particular to a waist twister with a protective function. Background technique [0002] The existing Chinese patent database discloses a patent named a lockable waist twister. Its application number is 201721282872.7, the application date is 20171001, the authorization announcement number is CN207237165U, and the authorization announcement date is 20180417. The device includes a main support frame. , Bracket, turntable, and deadlocker, the top of the main support frame has a bracket, the turntable has a connecting tube connected to it, and the outer wall of the connecting tube has straight teeth; the deadlocker includes an arc-shaped rack and an L-shaped brake lever , Three components of the transmission line; the fixed end of the arc-shaped rack is fixed on the bracket by a shaft, and the other end has a circular hole; the L-shaped brake lever is fixed on the bracket of the main support ...

AI Technical Summary

Problems solved by technology

Its shortcoming is that this device can only control the locking of the turntable, but cannot adjust the rotation angle of the turntable. Therefore, when you can’t control your strength when exercising, the rotation angle is too large and it is easy to sprain your waist.

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