US-12617442-B2 - Collapsible wagon with foldable handle and basket extension

US12617442B2US 12617442 B2US12617442 B2US 12617442B2US-12617442-B2

Abstract

A collapsible utility wagon includes a push-back function device assembly, and a collapsible utility wagon body assembly, wherein the push-back function device assembly is provided behind the collapsible utility wagon body assembly. The push-back function device assembly includes a rear wheel frame assembly, a front handlebar strut assembly, two rear handlebar strut assemblies, a lock device assembly, a handlebar assembly, a lock hook, a lock column, a mesh bag and rear wheels. The push-back function device assembly is provided behind the collapsible utility wagon body assembly, so that a sheet-like collapsible wagon is enabled to implement a push-back function instead of being able to be pulled only forward as that of the prior art. The collapsible utility wagon has a good link ability, and can be unfolded or collapsed with a simple process and a minimal effort with ease of use.

Inventors

Shou Qiang Zhu

Assignees

MAXTON ENGINEERING LTD.

Dates

Publication Date: 20260505
Application Date: 20230619

Claims (15)

1 . A collapsible utility wagon with a push-back function device, comprising: a push-back function device assembly, and a collapsible utility wagon body assembly, wherein the push-back function device assembly is provided behind the collapsible utility wagon body assembly, wherein the push-back function device assembly comprises a rear wheel frame assembly, a front handlebar strut assembly, two rear handlebar strut assemblies, a lock device assembly, a handlebar assembly, a lock hook, a lock column, a mesh bag and rear wheels; the lock device assembly is disposed on a top portion of the rear wheel frame assembly; the front handlebar strut assembly has a lower end rotatably connected to the rear wheel frame assembly, and an upper end rotatably connected to a front end of the handlebar assembly; the two rear handlebar strut assemblies are left-right symmetrically arranged on two sides of the rear wheel frame assembly, and each of the rear handlebar strut assemblies has one end rotatably connected to a middle portion of the rear wheel frame assembly and the other end rotatably connected to a rear end of the handlebar assembly; the lock hook is disposed at a connection point of the right rear handlebar strut assembly and the handlebar assembly; the mesh bag has four corners fixed on an inner side of the handlebar assembly; the rear wheels are left-right symmetrically arranged on a bottom portion of the rear wheel frame assembly; and the lock column is disposed on a right lower end of the rear wheel frame assembly, and wherein the lock device assembly comprises an unlock rod assembly and two lock assemblies symmetrically arranged on two ends of the unlock rod assembly; the unlock rod assembly comprises an unlock rod, blind rivet nuts, and an unlock rod rubber cover; the blind rivet nuts are left-right symmetrically arranged on two ends of the unlock rod, and the unlock rod rubber cover is disposed on a middle portion of the unlock rod; the lock assembly comprises a lock seat, a locking member, a lock slide block, a lock seat top cover, a lock seat rear cover, a locking member spring and a slide block spring.
2 . The collapsible utility wagon with a push-back function device according to claim 1 , wherein the collapsible utility wagon body assembly comprises a fabric wagon body; the fabric wagon body has a front side provided with front wheels, and has left and right sides symmetrically arranged with cross-bar assemblies; each of the cross-bar assemblies is formed by connecting a plurality of cross-bars; the rearmost upper cross-bar is provided with a pull plate; and the collapsible utility wagon body assembly is rotatably connected to a middle portion and a lower end of the two sides of the rear wheel frame assembly through the rearmost lower cross-bar and the pull plate.
3 . The collapsible utility wagon with a push-back function device according to claim 1 , wherein the rear wheel frame assembly comprises a rear wheel frame, a rear wheel frame support, lock seat securing rods, rear axle supports, and handlebar strut connecting members; the rear wheel frame support is disposed at a bottom portion of the rear wheel frame; the rear axle supports are left-right symmetrically arranged at a bottom of the rear wheel support; the two lock seat securing rods are left-right symmetrically arranged on an upper inner side of the rear wheel frame; and the handlebar strut connecting members are left-right symmetrically arranged on a top portion of the rear wheel frame.
4 . The collapsible utility wagon with a push-back function device according to claim 1 , wherein the front handlebar strut assembly comprises front handlebar struts and a handlebar locking rod; the front handlebar struts are left-right symmetrically arranged on two ends of the handlebar locking rod, and have both upper and lower ends provided with sleeves.
5 . The collapsible utility wagon with a push-back function device according to claim 1 , wherein the rear handlebar strut assembly comprises rear handlebar struts and sleeves; and the rear handlebar struts have both upper and lower ends provided with sleeves.
6 . The collapsible utility wagon with a push-back function device according to claim 1 , wherein the handlebar assembly comprises a handlebar, a handlebar rubber cover and top covers; the handlebar cover sleeves a middle portion of the handlebar, and the handlebar has both ends provided with the top covers.
7 . The collapsible utility wagon with a push-back function device according to claim 1 , wherein the mesh bag has four corners thereof provided with assembly holes, and the four corners of the mesh bag are fixed to an inner side of the handlebar assembly through the assembly holes.
8 . The collapsible utility wagon with a push-back function device according to claim 1 , wherein the front handlebar strut assembly has a lower end rotatably connected to the rear wheel frame assembly, and an upper end rotatably connected to a front end of the handlebar assembly; the two rear handlebar strut assemblies are left-right symmetrically arranged on two sides of the rear wheel frame assembly, and each of the rear handlebar strut assemblies has one end rotatably connected to a middle portion of the rear wheel frame assembly and the other end rotatably connected to a rear end of the handlebar assembly; the lock hook is disposed at a connection point of the right rear handlebar strut assembly and the handlebar assembly; the mesh bag has four corners fixed on an inner side of the handlebar assembly; the rear wheels are left-right symmetrically arranged on a bottom portion of the rear wheel frame assembly; and the lock column is disposed on a right lower end of the rear wheel frame assembly.
9 . The collapsible utility wagon with a push-back function device according to claim 1 , wherein the handlebar assembly comprises a handlebar, a handlebar rubber cover and top covers; the handlebar cover sleeves a middle portion of the handlebar, and the handlebar has both ends provided with the top covers.
10 . The collapsible utility wagon with a push-back function device according to claim 1 , wherein the mesh bag has four corners thereof provided with assembly holes, and the four corners of the mesh bag are fixed to an inner side of the handlebar assembly through the assembly holes.
11 . A collapsible utility wagon with a push-back function device, comprising: a push-back function device assembly, and a collapsible utility wagon body assembly, wherein the push-back function device assembly is provided behind the collapsible utility wagon body assembly, wherein the push-back function device assembly comprises a rear wheel frame assembly, a front handlebar strut assembly, two rear handlebar strut assemblies, a lock device assembly, a handlebar assembly, a lock hook, a lock column, a mesh bag and rear wheels, wherein the lock device assembly is disposed on a top portion of the rear wheel frame assembly, and wherein the lock device assembly comprises an unlock rod assembly and two lock assemblies symmetrically arranged on two ends of the unlock rod assembly; the unlock rod assembly comprises an unlock rod, blind rivet nuts, and an unlock rod rubber cover; the blind rivet nuts are left-right symmetrically arranged on two ends of the unlock rod, and the unlock rod rubber cover is disposed on a middle portion of the unlock rod; the lock assembly comprises a lock seat, a locking member, a lock slide block, a lock seat top cover, a lock seat rear cover, a locking member spring and a slide block spring.
12 . The collapsible utility wagon with a push-back function device according to claim 11 , wherein the collapsible utility wagon body assembly comprises a fabric wagon body; the fabric wagon body has a front side provided with front wheels, and has left and right sides symmetrically arranged with cross-bar assemblies; each of the cross-bar assemblies is formed by connecting a plurality of cross-bars; the rearmost upper cross-bar is provided with a pull plate; and the collapsible utility wagon body assembly is rotatably connected to a middle portion and a lower end of the two sides of the rear wheel frame assembly through the rearmost lower cross-bar and the pull plate.
13 . The collapsible utility wagon with a push-back function device according to claim 11 , wherein the rear wheel frame assembly comprises a rear wheel frame, a rear wheel frame support, lock seat securing rods, rear axle supports, and handlebar strut connecting members; the rear wheel frame support is disposed at a bottom portion of the rear wheel frame; the rear axle supports are left-right symmetrically arranged at a bottom of the rear wheel support; the two lock seat securing rods are left-right symmetrically arranged on an upper inner side of the rear wheel frame; and the handlebar strut connecting members are left-right symmetrically arranged on a top portion of the rear wheel frame.
14 . The collapsible utility wagon with a push-back function device according to claim 11 , wherein the front handlebar strut assembly comprises front handlebar struts and a handlebar locking rod; the front handlebar struts are left-right symmetrically arranged on two ends of the handlebar locking rod, and have both upper and lower ends provided with sleeves.
15 . The collapsible utility wagon with a push-back function device according to claim 11 , wherein the rear handlebar strut assembly comprises rear handlebar struts and sleeves; and the rear handlebar struts have both upper and lower ends provided with sleeves.

Description

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to the field of outdoor leisure furniture, and more particularly to a collapsible utility wagon with push-back function device. Description of the Prior Art Collapsible wagons are frequently used in when passing time outdoors or at the beach. There are two types of collapsible wagons in the prior art. One is a collapsible wagon that can be pulled only forward, and the other is a collapsible wagon that has a simple push-back function. The operations of the above are complicated, and both hands are needed to in order to unfold or collapse such collapsible wagons. Moreover, a gap between a handle and a wagon body is rather large, rendering poor stability. SUMMARY OF THE INVENTION It is an object of the present invention to provide a collapsible utility wagon with a push-back function device having a simple structure, a reasonable design and ease of use to improve the drawbacks and issue of the prior art. The collapsible utility wagon of the present invention can be operated single-handedly and be collapsed with a simple operation and a minimal effort. Moreover, the collapsible utility wagon of the present invention occupies a small space when collapsed and thus can be readily placed in a back trunk of a vehicle when located outdoors or be easily erected within a small space when located indoors, and has a light weight and a good stability. To achieve the above object, a collapsible utility wagon with a back-push function device provided by a technical solution of the present invention includes a push-back function device assembly, and a collapsible utility wagon body assembly, wherein the push-back function device assembly is provided behind the collapsible utility wagon body assembly. The push-back function device assembly includes a rear wheel frame assembly, a front handlebar strut assembly, two rear handlebar strut assemblies, a lock device assembly, a handlebar assembly, a lock hook, a lock column, a mesh bag and rear wheels. The lock device assembly is disposed on a top portion of the rear wheel frame assembly. The front handlebar strut assembly has a lower end rotatably connected to the rear wheel frame assembly, and an upper end rotatably connected to a front end of the handlebar assembly. The two rear handlebar strut assemblies are left-right symmetrically arranged on two sides of the rear wheel frame assembly. Each of the rear handlebar strut assemblies has one end rotatably connected to a middle portion of the rear wheel frame assembly and the other end rotatably connected to a rear end of the handlebar assembly. The lock hook is disposed at a connection point of the right rear handlebar strut assembly and the handlebar assembly. The mesh bag has four corners fixed on an inner side of the handlebar assembly. The two rear wheels are left-right symmetrically arranged on a bottom portion of the rear wheel frame assembly. The lock column is disposed on a right lower end of the rear wheel frame assembly. Further, the collapsible utility wagon body assembly includes a fabric wagon body. The fabric wagon body has a front side provided with front wheels, and has left and right sides symmetrically arranged with cross-bar assemblies. Each of the cross-bar assemblies is formed by connecting multiple cross-bars. The rearmost upper cross-bar is provided with a pull plate. The collapsible utility wagon body assembly is rotatably connected to the middle portion and the lower end of the two sides of the rear wheel frame assembly through the rearmost lower cross-bar and the pull plate. Further, the rear wheel frame assembly includes a wheel frame, a rear wheel frame support, lock seat securing rods, rear axle supports, and handlebar strut connecting members. The rear wheel frame support is disposed at a bottom portion of the rear wheel frame. The two rear axle supports are left-right symmetrically arranged at a bottom portion of the rear wheel support. The two lock seat securing rods are left-right symmetrically arranged on an upper inner side of the rear wheel frame. The two handlebar strut connecting members are left-right symmetrically arranged on a top portion of the rear wheel frame. Further, the front handlebar strut assembly includes front handlebar struts and a handlebar locking rod. The two front handlebar struts are left-right symmetrically arranged on two ends of the handle lock rod, and have both upper and lower ends provided with sleeves. Further, the rear handlebar strut assembly includes rear handlebar struts and sleeves. The rear handlebar struts have both upper and lower ends provided with the sleeves. Further, the handlebar assembly includes a handlebar, a handlebar rubber cover and top covers. The handlebar cover sleeves a middle portion of the handlebar, and the handlebar has both ends provided with the top covers. Further, the mesh bag has four corners provided with assembly holes, and the four corners of the mesh b