Automatic control device for trolley

Abstract

The invention provides an automatic control device of a handcart. The automatic control device comprises a supporting column (1), wherein the supporting column (1) is internally provide with a vertical through cavity (11); the through cavity (11) is internally provided with a rotary drum (7) capable of rotating; the rotary drum (7) and wheels (92) are mutually linked; the rotary drum (7) and central holes of the wheels are rotatably sleeved into wheel shafts (6); the circumference of the rotary drum (7) is provided with a radial inserting hole (74); the through cavity (11) is internally provided with an inserting rod (4) which can move up and down; the inserting rod (4) is connected with a pull rope (2); when the rotary drum (7) is rotated to the inserting hole (74) and is located below the inserting rod (4), the lower end of the inserting rod (4) can be inserted into the inserting hole (74); and a structure that the inserting rod (4) is pulled out from the inserting hole (74) can be arranged in the through cavity (11) through a pull rope (2). The automatic control device of the handcart disclosed by the invention has the advantages that whether the handcart is on a plane road surface or on an inclined slope road surface, the inserting rod in the supporting column can be automatically inserted into the inserting hole under the effect of no external force and the handcart can be automatically stopped; and therefore, the aim of safe utilization is realized.

Description

technical field [0001] The invention relates to a trolley, in particular to an automatic control device on the trolley. Background technique [0002] An existing Chinese utility model patent No. 200720060910.4 titled "Baby Stroller" discloses a structure, which comprises a vehicle frame, a handle frame installed on the upper part of the frame, and a handle frame installed between the upper part of the frame and the handle frame. The push rod between them and the front and rear wheel sets installed at the bottom of the frame are respectively provided with a brake mechanism, which includes a brake lever, a brake frame installed at both ends of the brake lever, and a brake frame installed between the two ends. The brake seat and the brake combination installed on the brake frame. When the baby trolley turns to the downhill road, the user can step on the brake seat installed on the rear wheel set to drive the whole brake mechanism to move backward, and drive the front wheel set...

AI Technical Summary

Problems solved by technology

But its disadvantage is that the trolley braking device needs to be manually controlled to achieve the effect of stopping or slowing down the trolley. Under the action of no external force, the trolley will automatically slide down the slope, which will lead to accidents. In the light case, the baby sitting on the baby's trolley is injured, and in severe cases, it will endanger the life of the baby. Realizing that the trolley can automatically brake on sloped roads has become a problem that parents are very concerned about. For this reason, the applicant has finally developed an automatic control device for the trolley through unremitting efforts.

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