Importance

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Abstract

A reverse-prevent structure for a baby walker includes several slide-preventing strips, a moving wheel and a reverse-preventing wheel. The characteristic of the present invention lies in the reverse-preventing wheel, which is composed by an inner tray and an outer casing. The inner tray is fixed and has an inwardly protrudent annulus. The annulus is provided with a angle-shaped hollow for a movable catch block to be placed in. The movable catch block is provided to interact with the ratchets encircling the inner wall of the outer casing. When the outer casing is rolling forward, the ratchets successively slide over the movable catch block, and the outer casing can advance smoothly. If the outer casing rolls in the reverse direction, one of the ratchets will be stopped by the movable catch block immediately, and the catch portion of the movable catch block will be caught in the notch between two ratchets. Therefore, the outer casing as well as the reverse-preventing wheel will be prevented from rolling in the direction.

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First Claim