Self-locking cart

Abstract

The invention belongs to the technical field of self-locking carts, in particular to a self-locking cart. The self-locking cart comprises universal wheels, a bearing box, handrails and a brake wheel mechanism. When people use the self-locking cart, when the self-locking cart stops, a first mounting block installed on the cart rotates under the action of a corresponding tension spring. The first mounting block rotates and causes rolling friction between brake wheels and ground, namely, the friction loss of the brake wheels is reduced, at the same time, the movement of the first mounting block can make the brake wheels and a second traveling wheel perpendicular to each other, and the inclined surface on a limiting rod is in contact with teeth on a limiting gear. The limiting rod plays a rolein limiting the limiting teeth, at the same time, the cart is braked by friction between the brake wheels and the ground, namely, the cart is self-locked, and the cart is prevented from starting again to affect other things after stopping.

Description

Technical field [0001] The invention belongs to the technical field of self-locking carts, in particular to a self-locking cart. Background technique [0002] A cart is a device used by an operator to transport loads. During use, the operator needs to push the cart to move; however, if there is something that needs to be parked during the pushing process, the cart needs to be temporarily parked, and the cart needs to be in a stationary state at this time; When the cart is loaded with heavier cargo, it is difficult to park; even if it is parked, it is likely that the cart will roll automatically when it is subjected to a small external force; this will cause damage to the surrounding things or people, and it will be harmful to the cart. The items inside can also cause damage; so it is necessary to design a cart that can self-lock after the cart is stopped. [0003] The present invention designs a self-locking cart to solve the above problems. SUMMARY OF THE INVENTION [...

AI Technical Summary

Problems solved by technology

The operator needs to push the cart to move during use; however, if something needs to be stopped during the pushing process, the cart needs to be temporarily parked, and the cart needs to be in a static state; but when the push cart When the cart is loaded with heavy goods, it is difficult to park the cart; even if it is parked, it is very likely that the cart will slide automatically when it is subjected to a small external force; The items inside may also cause damage; so it is necessary to design a cart that can lock itself after the cart stops

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