CN216833753U

CN216833753U - Novel handcart

Info

Publication number: CN216833753U
Application number: CN202220117932.4U
Authority: CN
Inventors: 孙本龙
Original assignee: Zhejiang Pride Leisure Products Co Ltd
Current assignee: Zhejiang Pride Leisure Products Co Ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-06-28
Anticipated expiration: 2032-01-17

Abstract

A novel handcart comprises a foldable frame, a push handle and four roller assemblies, wherein the push handle is arranged at the rear part of the frame, the four roller assemblies are arranged at four corners of the frame, the frame comprises a frame body consisting of a front wall assembly, a rear wall assembly and two side wall assemblies and an underframe assembly positioned at the bottom of the frame body, each side wall assembly comprises two groups of connecting rods, each group of connecting rods comprises a long rod, a middle rod and a short rod, the lower end parts of the two long rods are rotatably connected to form a V-shaped structure with an upward opening, the upper end parts of the two long rods are rotatably connected with the upper end parts of the front wall assembly and the rear wall assembly respectively, the upper end part of one middle rod is rotatably connected with the upper end part of one short rod to form a V-shaped structure with a downward opening, the lower end parts of the two middle rods are rotatably connected with the lower end parts of the front wall assembly and the rear wall assembly respectively, the upper sections of the two middle rods are riveted with the upper sections of the two long rods respectively, and the lower end parts of the two short rods are riveted with the lower sections of the two long rods respectively. Collapsible accomodating, novel structure, shallow sack and frame easy dismounting are quick, and convenient to use is swift.

Description

Novel handcart

Technical Field

The utility model belongs to the technical field of the handcart, concretely relates to novel handcart.

Background

The handcart is simple to operate and convenient to use, has strong trafficability characteristic, can be used in various complex environments, and is popularized in life and production. The frame often decides the performance of handcart as the important component part of handcart, but traditional handcart frame structure is complicated, and the volume is great, and the convenience is not strong, often still can not dismantle and fold, neither does not do benefit to and transports the goods and materials in various environment, still is unfavorable for folding around using and accomodates, has also increased the degree of difficulty of carrying the use. The conventional storage platform of the hand-push frame cannot be detached or is not firm enough in installation, and is easy to drop or damage articles during use. There is therefore a need for improvements to hand carts.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned defect, provide a novel handcart, collapsible accomodating around the use, convenient to carry and simple structure, convenient operation.

In order to realize the above purpose, the utility model adopts the following technical scheme: a novel handcart comprises a foldable frame, a push handle and four roller assemblies, wherein the push handle is arranged at the rear part of the frame, the four roller assemblies are arranged at the four corners of the frame, the frame comprises a frame body formed by four side surfaces of a front wall assembly, a rear wall assembly and two side wall assemblies and an underframe assembly positioned at the bottom of the frame body, each side wall assembly comprises two groups of connecting rods, each group of connecting rods comprises a long rod, a middle rod and a short rod, wherein the lower tip of two long poles rotates to be connected and is the ascending V-arrangement of opening, two long pole upper ends rotate with antetheca assembly, back wall assembly upper end respectively to be connected, a king-rod upper end rotates with a quarter butt upper end to be connected and is the decurrent V-arrangement of opening, two king-rod lower tips rotate with the lower tip of antetheca assembly, back wall assembly respectively to be connected, the upper segment of two king-rods is riveted with the upper segment of two long poles respectively, the lower tip of two quarter butt is riveted with the hypomere of two long poles respectively.

Furthermore, the rotary connection between the two long rods or the rotary connection between the middle rod and the short rod is realized through a connecting piece.

Furthermore, the connecting piece comprises a left connecting piece and a right connecting piece which are symmetrical in structure, one end of the left connecting piece is rotatably connected with one end of the right connecting piece, and the other end of the left connecting piece or the other end of the right connecting piece is fixed with a long rod or a middle rod or a short rod.

Further, the front wall assembly and the rear wall assembly have the same structure, the front wall assembly comprises two telescopic rods, two long pipes, two short pipes and two connecting pipes, the upper end and the lower end of each telescopic rod are respectively provided with an upper connecting seat and a lower connecting seat, the upper ends of the two long pipes are rotatably connected to form a V shape with a downward opening, the lower ends of the two long pipes are rotatably connected to the two lower connecting seats, the lower ends of the two symmetrically arranged short pipes are riveted to the upper sections of the two long pipes, the upper ends of the two symmetrically arranged short pipes are rotatably connected to the two upper connecting seats, one ends of the two connecting pipes are rotatably connected, and the other ends of the two connecting pipes are riveted to the middle parts of the two long pipes; the upper connecting seat and the lower connecting seat are respectively and rotatably connected with the upper end part of a long rod of any side wall assembly and the lower end part of a middle rod, and the lower connecting seat is also rotatably connected with one corner of the underframe assembly. The four sides of the whole frame body are of foldable structures, so that the folding and storage are facilitated, the occupied space when the frame body is not used is reduced, the assembly process is simpler, and the trolley cloth bags can be installed in the frame body after the four sides are assembled.

Furthermore, the top of the upper connecting seat is provided with a fixing buckle for installing and fixing a cloth bag of the cart. The four corners of the fixed trolley cloth bag are disassembled through the fixing buckles, so that the fixing is firmer, the assembly is convenient, and the cleaning and the installation of the frame and the trolley cloth bag are convenient.

Furthermore, the fixing buckle comprises a clamping piece and a U-shaped elastic piece embedded in the clamping piece, and a bulge on the U-shaped elastic piece extends out of a transverse hole of the clamping piece; the upper connecting seat is provided with a longitudinal mounting hole and a transverse clamping hole, and the fixing buckle is arranged in the longitudinal mounting hole and protrudes out of the transverse clamping hole.

Furthermore, the trolley is characterized by further comprising a trolley cloth bag arranged on the frame, mounting holes corresponding to the fixing buckles are formed in four corners of the trolley cloth bag, and sleeving parts used for sleeving the joints of the middle rods and the short rods are arranged on the four sides of the trolley cloth bag. The four corners of the cart cloth are fixed behind the four corners of the frame, and the sleeving parts on the two side surfaces are sleeved on the connecting pieces on the side surfaces of the frame, so that the stress area is increased, the supporting degree of the frame to the cart cloth bag is improved, and more articles can be transported.

Furthermore, the bottom frame comprises a bottom tube seat and four bottom tubes, one ends of the bottom tubes are rotatably connected with the bottom tube seat, and the other ends of the bottom tubes are rotatably connected with the four corners below the frame body. When folding, only need to go up to draw the bottom tube seat and can realize folding the accomodating.

Furthermore, grooves are arranged below four corners of the bottom tube seat, and one end of the bottom tube is embedded into the grooves to be rotatably connected. The bottom tube can only rotate within the range of about ninety degrees from horizontal to downward, and is gathered and stored below the center of the bottom tube seat.

Further, the roller assembly comprises rollers, roller supports and roller supports, and the rollers are detachably mounted at the bottoms of the four corners of the frame through the roller supports. And the detachable design is convenient for quick assembly and later maintenance and replacement.

Furthermore, the roller support comprises a wheel frame, a wheel shaft and a wheel shaft clamping piece, the wheel shaft, the wheel frame and the roller are sequentially assembled, the wheel shaft clamping piece comprises a wheel shaft sleeve, a gasket and a pressure bearing, the wheel shaft sleeve, the gasket and the pressure bearing are sequentially sleeved on the wheel shaft from top to bottom, and a bayonet at the top of the wheel shaft sleeve is embedded into a groove at the top of the wheel shaft.

Adopt the technical scheme of the utility model, the beneficial effects of the utility model are that: the handcart adopts the design that the two symmetrical side surfaces have the same structure, so that the production and assembly process is simpler; whole collapsible accomodating, novel structure, shallow sack is fixed through a plurality of installation positions with the frame and is realized, dismantles convenient quick, and the transport capacity is strong, and convenient to use is swift.

Drawings

FIG. 1 is a perspective view of a novel cart;

FIG. 2 is a deployed state view of the frame;

FIG. 3 is a folded view of the frame;

FIG. 4 is a schematic view of the assembly of the fixing buckle and the upper connecting seat;

fig. 5 is a perspective view of a cart cloth bag;

fig. 6 is an assembly view of the roller bracket.

In the figure: the device comprises a roller 1, a lower connecting seat 2, a pushing handle 3, an expansion rod 4, a fixing buckle 5, a clamping piece 51, a U-shaped elastic sheet 52, a protrusion 53, a transverse hole 54, an upper connecting seat 6, a longitudinal mounting hole 61, a transverse clamping hole 62, a connecting piece 7, a left connecting piece 71, a right connecting piece 72, a long rod 8, a chassis assembly 9, a bottom pipe 91, a bottom pipe seat 92, a groove 93, a cart cloth bag 10, a mounting hole 101, a sleeving part 102, a roller support 11, a wheel frame 111, a wheel axle 112, a groove 1120, a wheel axle sleeve 113, a clamping opening 1130, a gasket 114, a pressure bearing 115, a long pipe 12, a short pipe 13, a connecting pipe 14, a middle rod 15 and a short rod 16.

Detailed Description

The specific embodiments of the present invention will be further explained with reference to the drawings, so that the technical solutions will be more clear and understood.

A novel trolley comprises a foldable frame, a push handle 3 and roller assemblies 1, wherein the push handle 3 is installed behind the frame, the four roller assemblies 1 are installed at four corners of the frame, and the frame comprises a frame body formed by four side faces of a front wall assembly, a rear wall assembly, two side wall assemblies and an underframe assembly 9 located at the bottom of the frame body. The two side wall assemblies have the same structure, each side wall assembly comprises two long rods 8, two middle rods 15 and two short rods 16, the lower end parts of the two long rods 8 are rotatably connected to form a V shape with an upward opening, and the upper end parts of the two long rods 8 are respectively rotatably connected with the upper end parts of the front wall assembly and the rear wall assembly; the upper end of one middle rod 15 is rotatably connected with the upper end of one short rod 16 to form a V-shaped structure with a downward opening, the lower ends of the two middle rods 15 are rotatably connected with the lower ends of the front wall assembly and the rear wall assembly respectively, the upper sections of the two middle rods 15 are riveted with the upper sections of the two long rods 8 respectively, and the lower ends of the two short rods 16 are riveted with the lower sections of the two long rods 8 respectively. The long rod 8, the middle rod 15 and the short rod 16 are preferably hollow tubes, and are connected in pairs to form three V-shaped structures, so that the folding function of the side wall assembly is realized in a matching manner. The joint above the middle rod 15 and the short rod 16 can be used for installing the cart cloth bag 10.

The front wall assembly and the rear wall assembly shown in this embodiment are identical in structure. The front wall assembly comprises two telescopic rods 4, a long pipe 12, a short pipe 13 and a connecting pipe 14. The upper end and the lower end of the telescopic rod 4 are respectively provided with an upper connecting seat 6 and a lower connecting seat 2, the upper end parts of two long pipes 12 are rotationally connected through a connecting piece 7, the lower ends of the two long pipes 12 are rotationally connected with the lower connecting seat 2, the lower ends of two symmetrically arranged short pipes 13 are riveted on the upper sections of the two long pipes, the upper ends of the two short pipes 13 are rotationally connected with the upper connecting seat 6, and the other ends of two connecting pipes 14 with one ends rotationally connected are respectively riveted with the middle parts of the two long pipes 12; the upper connecting seat 6 and the lower connecting seat 2 are respectively and rotatably connected with the upper end part and the lower end part of any side wall assembly, the lower connecting seat 2 is also rotatably connected with one corner of the bottom frame assembly 9, and the front wall assembly or the rear wall assembly is rotatably connected with the side wall assembly.

In a preferred embodiment, the rotary connection between two long rods 8 or the rotary connection between the middle rod 15 and the short rod 16 or the rotary connection between two long tubes 12 shown in this embodiment is realized by one connecting piece 7.

In a preferred embodiment, the connecting member 72 comprises a left connecting member 71 and a right connecting member 72 which are symmetrical in structure, one end of the left connecting member 71 is rotatably connected with one end of the right connecting member 72, and the other end of the left connecting member 71 or the other end of the right connecting member 72 is fixed with the end of one long rod 8 or short rod 16 or middle rod 15, respectively. The side wall assembly or the front wall assembly or the rear wall assembly can form rotary connection through the connecting piece 72 consisting of the left connecting piece 71 and the right connecting piece 72, and the unfolding or folding of each side surface of the frame is completed.

In a preferred embodiment, the bottom frame assembly comprises a bottom tube seat 92 and four bottom tubes 91 with one ends rotatably connected with the bottom tube seat 92, and one ends of the bottom tubes 91 are rotatably connected with four corners below the frame body. When folding, only the bottom tube seat 92 needs to be pulled upwards, so that the bottom tube 91 drives the four corners of the frame body to be close to the middle to realize folding.

In a preferred embodiment, grooves 93 are formed below four corners of the bottom tube seat 92, the grooves 93 do not extend to the upper surface, and one end of the bottom tube 91 is embedded in the grooves 93 and rotatably connected, so that the bottom tube 91 can only rotate within a range from horizontal to ninety degrees downwards.

In a preferred embodiment, the roller assembly 1 comprises a roller 1 and a roller bracket 11, and the roller 41 is mounted at the lower end of the roller bracket 11, and the upper end of the telescopic rod roller bracket 11 is detachably mounted below the lower connecting seat 2 of the frame.

The specific roller bracket provided in this embodiment, as shown in fig. 6, includes a wheel frame 111, a wheel axle 112, and a wheel axle clip, wherein the wheel axle 112, the wheel frame 111, and the roller 1 are sequentially assembled, the wheel axle clip includes a wheel axle sleeve 113, a gasket 114, and a pressure bearing 115, the wheel axle sleeve 113, the gasket 114, and the pressure bearing 115 are sequentially sleeved on the wheel axle 112 from top to bottom, and a bayonet 1130 at the top of the wheel axle sleeve 113 is embedded in a groove 1120 at the top of the wheel axle 112. The wheel axle sleeve 113 at the upper end of the whole roller bracket and the wheel axle 112 inside are inserted from the bottom of the telescopic rod 4, and the assembly of the roller 1 and the whole vehicle frame is completed.

In order to install the cart cloth bag on the frame, a fixing buckle 5 for installing and fixing the cart cloth bag is arranged at the top of an upper connecting seat 6 at the upper end of the telescopic rod 4. So that the four corners of the cart cloth bag 10 can be firmly arranged at the four corners of the frame.

The fixing buckle 5 of the embodiment comprises a clamping piece 51 and a U-shaped spring piece 52 embedded in the clamping piece, wherein a projection 53 on the U-shaped spring piece 52 extends out of a transverse hole 54 of the clamping piece 51; the upper connecting seat 6 is provided with a longitudinal mounting hole 61 and a transverse clamping hole 62, the fixing buckle is arranged in the longitudinal mounting hole 61, the bulge 53 extends out of the transverse clamping hole 62, during disassembly and assembly, the bulge 53 on the side surface of the upper connecting seat 6 is pressed inwards, so that the fixing buckle 5 is separated from the upper connecting seat 6, and the fixing buckle 5 is clamped in the longitudinal mounting hole 61 again after the upper cart cloth bag 10 is installed.

In a preferred embodiment, the trolley cloth bag 10 is further installed on the frame, four corners of the trolley cloth bag 10 are provided with installation holes 101 corresponding to the fixing buckles 5, the trolley cloth bag 10 is placed in the frame, and then the fixing buckles 5 penetrate through the installation holes 101 and are fixed in the longitudinal installation holes 61 of the upper connecting seats 6. The two sides of the cart cloth bag 10 corresponding to the side wall assembly are provided with a sleeving part 102 for sleeving the side surface of the frame. The four corners of the cart cloth 10 are arranged at the four corners of the frame, the fixing buckles 5 penetrate through the mounting holes 101 to be fixed on the frame, and the sleeving parts 102 are sleeved on the connecting pieces 72 of the frame side wall assembly, so that the stress area is increased, and more articles can be transported.

In a preferred embodiment, the pushing handle 3 is preferably a foldable pushing handle as shown in the figure, the pulling rod is connected with two connecting rods arranged at the lower end of the pulling rod, the upper ends of the two connecting rods are rotatably connected with the pulling rod, and the lower ends of the two connecting rods are respectively rotatably connected with the two lower connecting seats 2 of the rear wall assembly. The rotating directions are both left and right directions, and the two connecting rods can be folded when the folding device is folded.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A novel handcart comprises a foldable frame, a push handle and four roller assemblies, wherein the push handle is arranged at the rear of the frame, the four roller assemblies are arranged at the four corners of the frame, the frame comprises a frame body consisting of four side surfaces of a front wall assembly, a rear wall assembly, two side wall assemblies and an underframe assembly positioned at the bottom of the frame body, and the handcart is characterized in that each side wall assembly comprises two groups of connecting rods, each group of connecting rods comprises long rods, a middle rod and a short rod, the lower ends of the two long rods are rotatably connected to form a V-shaped structure with an upward opening, the upper ends of the two long rods are respectively rotatably connected with the upper ends of the front wall assembly and the rear wall assembly, the upper end of one middle rod is rotatably connected with the upper end of one short rod to form a V-shaped structure with a downward opening, the lower ends of the two middle rods are respectively rotatably connected with the lower ends of the front wall assembly and the rear wall assembly, the upper sections of the two middle rods are respectively riveted with the upper sections of the two long rods, the lower ends of the two short rods are riveted with the lower sections of the two long rods respectively.

2. A trolley as claimed in claim 1, wherein the pivotal connection between the long poles or the middle and short poles is provided by a connector.

3. A novel handcart as claimed in claim 2, wherein said connecting parts include left and right connecting parts with symmetrical structure, one end of said left connecting part is rotatably connected to one end of said right connecting part, and the other end of said left or right connecting part is fixed to a long or middle or short rod.

4. The novel handcart of claim 1, wherein the front wall assembly and the rear wall assembly are identical in structure, the front wall assembly comprises two telescopic rods, two long pipes, two short pipes and two connecting pipes, the upper end and the lower end of each telescopic rod are respectively provided with an upper connecting seat and a lower connecting seat, the upper ends of the two long pipes are rotatably connected in a V shape with a downward opening, the lower ends of the two long pipes are rotatably connected with the two lower connecting seats, the lower ends of the two symmetrically arranged short pipes are riveted at the upper sections of the two long pipes, the upper ends of the two symmetrically arranged short pipes are rotatably connected with the two upper connecting seats, one end of each connecting pipe is rotatably connected, and the other ends of the two connecting pipes are riveted with the middle parts of the two long pipes;

the upper connecting seat and the lower connecting seat are respectively and rotatably connected with the upper end part of a long rod of any side wall assembly and the lower end part of a middle rod, and the lower connecting seat is also rotatably connected with one corner of the underframe assembly.

5. A novel handcart as claimed in claim 4, wherein the top of the upper connecting seat is provided with a fastener for fixing the cloth bag of the handcart.

6. The novel handcart of claim 5, wherein the fixing buckle comprises a clamping piece and a U-shaped spring piece embedded in the clamping piece, and a protrusion on the U-shaped spring piece extends out of a transverse hole of the clamping piece; the upper connecting seat is provided with a longitudinal mounting hole and a transverse clamping hole, and the fixing buckle is arranged in the longitudinal mounting hole and the bulge extends out of the transverse clamping hole.

7. A novel handcart as claimed in claim 5 or 6, further including a cloth bag mounted on the frame, said cloth bag having mounting holes at its four corners for corresponding to the fasteners, any two symmetrical sides of the cloth bag having sleeving portions for sleeving the joints of the middle and short rods.

8. A cart as claimed in claim 1, wherein said base frame includes a base frame and four base tubes pivotally connected at one end to said base frame, the other end of said base tubes pivotally connected at four corners of said frame.

9. A novel trolley according to any one of claims 1 to 6 wherein the roller assemblies include rollers and roller supports, the rollers being removably mounted to the four corner bottoms of the frame by the roller supports.

10. The novel trolley according to claim 9, wherein the roller support comprises a wheel frame, a wheel shaft and a wheel shaft clamping piece, the wheel shaft, the wheel frame and the roller are sequentially assembled, the wheel shaft clamping piece comprises a wheel shaft sleeve, a gasket and a pressure bearing, the wheel shaft sleeve, the gasket and the pressure bearing are sequentially sleeved on the wheel shaft from top to bottom, and a bayonet at the top of the wheel shaft sleeve is embedded in a groove at the top of the wheel shaft.