Foldable shopping cart

Abstract

The invention discloses a foldable shopping cart, which can move from an unfolding position to a folding position after a locking device is unlocked, and comprises a support frame and an enclosure frame which is connected to the support frame and forms an accommodating space with the support frame, the enclosure frame comprises an upper connecting rod rotationally connected to the upper end of the supporting frame around a first axis A and a lower connecting rod rotationally connected to the lower end of the supporting frame around a second axis B. A movable frame capable of sliding relative to the upper connecting rod to change the size of the containing space is connected to the upper connecting rod and comprises a movable rod slidably connected to the upper connecting rod. The movable rod is rotationally connected with a connecting piece around a third axis C, the lower connecting rod is rotationally connected with a plurality of front wheel assemblies around a fourth axis D, linkage assemblies are arranged among the front wheel assemblies, the connecting piece and the supporting frame, and the supporting frame is further connected with a pulley assembly. The invention aims to overcome the defects in the prior art, and provides the foldable shopping cart which is convenient to fold and small in size after being folded.

Description

【Technical field】 [0001] The present invention relates to the technical field of luggage shopping tools, in particular to a foldable shopping cart. 【Background technique】 [0002] Shopping cart is a tool that people often use when they go out shopping, especially when carrying some heavier items, shopping cart brings great convenience to people. The existing foldable shopping cart (publication number CN213619842U, published on 2021-07-06) includes a shopping cart main body, which is provided with a placing rack, and the shopping cart main body is provided with an engaging mechanism , the main body of the shopping cart is provided with a connecting frame, the connecting frame is provided with a handrail, the interior of the connecting frame is provided with a rotating mechanism, and the main body of the shopping cart is provided with a cover plate; and two sets of triangular wheels, so The triangular wheel is provided with a rotating mechanism, the rotating mechanism include...

AI Technical Summary

Problems solved by technology

The existing foldable shopping cart (the publication number is CN213619842U, and the publication date is 2021-07-06) includes a shopping cart body, the shopping cart body is provided with a shelf, and the shopping cart body is provided with a locking mechanism , the main body of the shopping cart is provided with a connecting frame, the connecting frame is provided with handrails, the interior of the connecting frame is provided with a rotating mechanism, the main body of the shopping cart is provided with a cover plate; and two sets of triangular wheels, the The triangular wheel is provided with a rotating mechanism, and the rotating mechanism includes a No. 1 rotating rod and a No. 1 rotating seat. One end of the No. 1 rotating rod is installed on the triangular wheel, and the other end of the No. 1 rotating rod is installed on the No. 1 rotating rod. On the seat, the No. 1 rotating seat is installed on the main body of the shopping cart. When this foldable shopping cart is folded, it only turns the folding connecting frame upwards without changing the overall height of the foldable shopping cart after folding. The volume is still large, not convenient to carry

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