Multi-functional folding cart

Abstract

A multi-functional folding cart including a folding cart body with a cloth pocket for containing articles. One end of the folding cart body is movably connected with a handle. A transverse rod and a fixing rod are arranged on the front and rear ends of a bottom of the folding cart body. Two wheels are located on the front end and two wheels are located on the rear end of the bottom of the folding cart body. Each of the wheels is provided with a trundle fixing frame. A stopping part and a rotating shaft are arranged on the top of the trundle fixing frame on the rear end of the bottom of the folding cart body. The rotating shaft connects the trundle fixing frame with the fixing rod. The trundle fixing frame can rotate around the rotating shaft to perform folding.

Claims

1. A multi-functional folding cart, comprising: a folding cart body comprising a cloth pocket for containing articles, the folding cart body possessing a front end, a rear end, and a bottom; a handle movably connected to one of the front end and the rear end of the folding cart body; a transverse rod arranged on the front end of the bottom of the folding cart body; a fixing rod arranged on the rear end of the bottom of the folding cart body; a wheel device arranged on the fixing rod, the wheel device comprising two wheels located on the front end of the bottom of the folding cart body and two wheels located on the rear end of the bottom of the folding cart body; each of the wheels of the wheel device being provided with a trundle fixing frame; a stopping part and a rotating shaft arranged on a top of the trundle fixing frame on the rear end of the bottom of the folding cart body, the rotating shaft connecting the trundle fixing frame with the fixing rod; and the trundle fixing frame being rotatable around the rotating shaft to effectuate folding of the folding cart.

2. The multi-functional folding cart according to claim 1, wherein the two wheels on the front end of the bottom of the folding cart body are steering wheels, and the two wheels on the rear end of the bottom of the folding cart body are fixing wheels.

3. The multi-functional folding cart according to claim 2, wherein the steering wheels are universal wheels.

4. The multi-functional folding cart according to claim 1, wherein the trundle fixing frame possesses an outer side and an inner side, and the rotating shaft is located on the inner side of the trundle fixing frame.

5. The multi-functional folding cart according to claim 4, wherein the stopping part is located on the outer side of the trundle fixing frame.

6. The multi-functional folding cart according to claim 5, wherein the stopping part comprises a base; at least one clamping jaw is arranged on the base; a groove is arranged at one side of the base; the folding cart is collapsible from a normal state to a folding state; in the normal use state of the folding cart, an upper end of the clamping jaw is abutted against the transverse rod on the bottom of the folding cart body; and in the folding state of the folding cart, the fixing rod on the bottom of the folding cart body is clamped into the groove of the base.

7. The multi-functional folding cart according to claim 6, wherein the base of the stopping part is fixedly connected with the trundle fixing frame through a rivet.

8. The multi-functional folding cart according to claim 6, wherein the stopping part integrally adopts a plastic piece.

Description

DESCRIPTION OF DRAWINGS

(1) The disclosure of this application will be further described below in combination with drawings and embodiments. In the figures:

(2) FIG. 1 is a side view of a multi-functional folding cart (use state);

(3) FIG. 2 is a back view of a multi-functional folding cart (use state);

(4) FIG. 3 is a back view of a multi-functional folding cart (final folding state);

(5) FIG. 4 is a main view of a stopping part;

(6) FIG. 5 is a side view of a stopping part; and

(7) FIG. 6 is a top view of a stopping part.

DETAILED DESCRIPTION

(8) To make the purpose, the technical solution and the advantages of the present application more clear, the detailed description below is to be understood in combination with the drawings and the embodiments. It should be understood that embodiments described herein are only used for explaining the disclosed folding cart, not used for limiting the present invention.

(9) In the following description, many specific details are given to provide more thorough understanding. However, for those skilled in the art, apparently, the inventive folding cart can be implemented without one or more of the details. In other examples, to avoid confusion with the disclosed folding cart, some technical features known in the field are not described.

(10) A detailed structure will be proposed in the following description. Implementation of the inventive folding cart is not limited to special details known to those skilled in the art. Preferred embodiments are described below in detail. However, besides the detailed description, the disclosed folding cart can also have other embodiments.

(11) The embodiments of the present application will be described below in detail in combination with the drawings.

(12) FIG. 1 to FIG. 3 show structural schematic diagrams of one specific embodiment of a multi-functional folding cart. The multi-functional folding cart comprises a folding cart body 10, wherein a cloth pocket 20 for containing articles is arranged in the folding cart body 10; one end of the folding cart body 10 is movably connected with a handle 30; a transverse rod 11 and a fixing rod 12 are arranged on a front end and a rear end of a bottom of the folding cart body 10; a wheel device is arranged on the fixing rod 12; the wheel device comprises two universal wheels 40 located on the front end of the bottom of the folding cart body 10 and two fixing wheels 50 located on the rear end of the bottom of the folding cart body 10; and each of the fixing wheels 50 is provided with a trundle fixing frame 51.

(13) As shown in FIG. 2 and FIG. 3, a stopping part 52 and a rotating shaft 53 are arranged on the top of the trundle fixing frame 51; and the trundle fixing frame 51 can rotate around the rotating shaft 53 to realize folding of the folding cart. In a normal use state, the rotating shaft 53 is located on an inner side of the trundle fixing frame 51, and the stopping part 52 is located on an outer side of the trundle fixing frame 51. In this way, after the two fixing wheels 50 rotate around the rotating shaft by 180 degrees, the folding cart is fully folded and is in a final state that the two fixing wheels 50 are located between the two steering wheels 40 side by side.

(14) As shown in a three-view diagram of the stopping part in FIG. 4 to FIG. 6, the stopping part 52 integrally adopts a plastic piece and is formed by integral injection molding. Through adoption of the plastic piece, elasticity is good and structural strength is also satisfied. The stopping part 52 comprises a base 521. Three clamping jaws 522 are arranged on the base 521. One side of the clamping jaws 522 is a bevel. A groove 523 is formed at one side of the base 521. An opening direction of the groove 523 backs to one side at which the clamping jaws are arranged. The base 521 of the stopping part 52 is fixedly connected with the top surface of the trundle fixing frame 51 through a rivet. The transverse rod 11 is arranged on the front end and the rear end of the bottom of the folding cart body 10. In the normal use state of the trolley, the upper ends of the clamping jaws 522 are abutted against the transverse rod 11 on the bottom of the folding cart body 10. In a folding state of the trolley, the fixing rod 12 on the bottom of the folding cart body is clamped into the groove 523 of the base 521. The stopping part 52 ensures that the trundle fixing frame 51 can only rotate by 180 degrees at most. In the use state, the stopping part 52 is located on the outer side of the rotating shaft 53 (as shown in FIG. 2). In the folding state, the stopping part 52 is located on the inner side of the rotating shaft 53 (as shown in FIG. 3). The stopping part performs a fixation effect in two states. Concrete operation and use are as follows:

(15) As shown in FIG. 2, when the trolley is used, the trundle fixing frame 51 rotates to the largest degrees so that the upper ends of the clamping claws 522 of the stopping part 52 are clamped on the transverse rod 11 at the bottom of the trolley, thereby ensuring that the fixing wheels 50 is firm in use.

(16) As shown in FIG. 3, after use, when the trolley is folded, the trundle fixing frame 51 is seized by a hand; the trundle fixing frame 51 is rotated inwards by 180 degrees; and the fixing rod 12 on the bottom of the folding cart body is clamped into the groove 523 of the base 521. In this way, full folding of the trolley is ensured and the space is saved during storage. At this moment, four wheels are almost on the same row.

(17) On the basis of the existing folding cart structure, by changing the trundle fixing frame of the fixing wheels to rotate the trundle fixing frame and adding the stopping part on the trundle fixing frame, the disclosed folding cart helps address a series of problems caused by realizing trolley folding through slide of the trundle fixing frame in the prior art. The fixing frame of the fixing wheels of the folding cart can rotate, thereby avoiding an interference problem of the fixing wheels and the steering wheels after trolley folding and also realizing the maximum folding of the trolley. The final folding state is almost that four wheels are on the same row side by side, thereby minimizing an occupied space and facilitating the folding. Because the trundle fixing frame does not need to slide and the trundle fixing frame is blocked under the effect of the stopping part, firmness of the fixing wheels in a travel process is ensured.

(18) The disclosed folding cart helps ensure reliable folding performance of the trolley, realize firm fixation of the trundle frame, increase stability of the trolley, prolong service life of the trolley and protect safety of the user.

(19) The above description involves preferred embodiments of the present invention, not intended to limit the present invention in other forms. Any of those skilled in the art familiar with field may change or vary the embodiments through the technical contents disclosed above into equivalent embodiments with equivalent modification. However, any simple amendment, equivalent change and variation made to the above embodiments according to the technical essence of the present invention without departing from contents of technical solutions of the present invention shall still belong to the protection scope of the technical solutions of the present invention.