Cart brakes

Abstract

Provided is a brake device of a cart. A rolling element (7) capable of rotating is arranged in the middle of a through cavity (11), the rolling element (7) is linked together with a wheel (3), radial protruding portions (71) are distributed on the circumference of the rolling element (7), a notch (72) is formed between every two adjacent protruding portions (71), an inserting column (4) capable of moving upwards and downwards is arranged in the through cavity (11) in a supporting column (1) located above the rolling element (7), and the top of the inserting column (4) is connected with a pulling rope (2). When the rolling element (7) rotates to a position, below the inserting column (4), of the notches (72), the structure including that the lower end of the inserting column (4) can be inserted into one of the notches (72) and the inserting column (4) can be pulled out of the one of the notches (72) through the pulling rope (2) is arranged in the through cavity (11). The brake device of the cart has the advantages that whether the cart operates on a planar road surface or a slope road surface, as long as no external force acts, the inserting column in the supporting column can be automatically inserted into one of the notches, and the cart can be automatically stopped; accordingly, the purpose of safe using is realized.

Description

Technical field [0001] The invention relates to a cart, in particular to a brake device on the cart. Background technique [0002] An existing Chinese utility model patent named "baby stroller" with the patent number 200720060910.4 discloses a structure, which includes a frame, a railing frame installed on the upper part of the frame, and a railing frame installed on the upper part of the frame Between the push rod and the front and rear wheel sets installed at the bottom of the frame, brake mechanisms are respectively provided on the front and rear wheel sets. The brake mechanism includes a brake lever, a brake frame installed at both ends of the brake lever, and a brake frame installed at both ends. The brake seat and the brake combination installed on the brake frame. When the stroller turns to the downhill road, the user can step on the brake seat installed on the rear wheel set with their feet, drive the entire brake mechanism to move backwards, and drive the front wheel se...

AI Technical Summary

Problems solved by technology

But its shortcoming is, this pushcart braking device needs manual control, just can reach the effect of stopping or slowing down of pushcart, when this baby stroller is in the state of slope road surface, and the adult does not pay attention and does not protect pushcart. Under the circumstances, that is, the stroller will automatically slide down the slope without the action of external force, resulting in accidents. In light cases, the baby sitting on the baby's hand will be injured, and in severe cases, the baby's life will be endangered. Safety, so how to realize that the automatic braking of the cart on the slope has become a problem that parents are very concerned about. For this reason, the applicant has finally developed a braking device on the cart through unremitting efforts.

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