CN217170735U

CN217170735U - Folding handcart

Info

Publication number: CN217170735U
Application number: CN202220975897.XU
Authority: CN
Inventors: 朱晓辉; 郑雪峰
Original assignee: Zhejiang Sunshine Leisure Products Co ltd
Current assignee: Zhejiang Sunshine Leisure Products Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-08-12
Anticipated expiration: 2032-04-24

Abstract

The utility model discloses a folding handcart, which comprises a vehicle frame, the frame includes chassis assembly, locates the flexible nest of tubes of four angles of chassis assembly and the front truck assembly, after-frame assembly and two sets of side bearer assemblies that connect between the flexible nest of tubes, flexible nest of tubes lower extreme all connects the wheel, the side bearer assembly includes the preceding upper ledge pipe that connects between the flexible nest of tubes of homonymy, back upper ledge pipe, connects the upper joint seat and the side stand pipe of preceding upper ledge pipe and back upper ledge pipe, a sliding seat has all been cup jointed on preceding upper ledge pipe and the back upper ledge pipe, and the side stand pipe upper end is articulated with the sliding seat, and the lower extreme is connected with the flexible nest of tubes of homonymy, and preceding upper ledge pipe and back upper ledge pipe of both sides all lie in same horizontal position and form the upper support when the frame expandes; the utility model discloses it is better to go up car frame support intensity, and folds up the back small, is convenient for accomodate.

Description

Folding handcart

Technical Field

The utility model belongs to the technical field of the handcart and specifically relates to a folding handcart.

Background

The handcart is a tool convenient for transporting a small amount of articles in a short distance, is widely applied to various places in life by people, is increasingly promoted along with the demand of people, and then derives a folding handcart, and the folded handcart is small in occupied area and convenient to store. A folding trolley as disclosed in patent CN210822360U, comprising a frame body and a handle mechanism, the frame body comprising an underframe, four lower hinge seats at four corners of the underframe, a front folding mechanism at the front of the underframe, a rear folding mechanism at the rear of the underframe and two side folding mechanisms at the sides of the underframe, said side folding mechanisms comprising at least one X-shaped cross hinge bar set; this technical scheme can be followed vertical and horizontal direction and folded simultaneously, but the hopper cloth cover can only rely on six angular points to support after expanding, and the intermediate position that lies in frame both sides on addition only has two angular points as supporting, and stability is relatively poor.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a folding handcart, which has better supporting strength of the upper frame, small volume after being folded and convenient storage.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a folding handcart, includes the frame, the frame includes chassis assembly, locates the flexible nest of tubes at four angles of chassis assembly and the front truck assembly, after-frame assembly and two sets of side bearer assemblies that connect between the flexible nest of tubes, wheel are all connected to flexible nest of tubes lower extreme, the side bearer assembly is including connecting preceding upper ledge pipe between the flexible nest of tubes of homonymy, back upper ledge pipe, connecting the upper joint seat and the side riser of preceding upper ledge pipe and back upper ledge pipe, all cup jointed a sliding seat on preceding upper ledge pipe and the back upper ledge pipe, the side riser upper end is articulated with the sliding seat, and the lower extreme is connected with the flexible nest of tubes of homonymy, and preceding upper ledge pipe and the back upper ledge pipe of both sides all lie in same horizontal position and form when the frame expandes and support.

The telescopic pipe group comprises an outer pipe and an inner pipe sleeved in the outer pipe, an upper pipe seat is sleeved at the upper end of the inner pipe, and one end of each of the front upper frame pipe and the rear upper frame pipe is connected with the two upper pipe seats respectively.

The improved structure is characterized in that the upper end of the upper pipe seat is provided with an upper pipe hole, and the upper pipe hole is matched with a pipe seat cap.

The improvement is further that the lower end of the outer pipe is sleeved with a lower pipe seat, and the lower end of the side stand pipe is hinged with the lower pipe seat.

And furthermore, the front frame assembly and the rear frame assembly are both a group of hinged cross pipes, the upper ends of the cross pipes are hinged with the upper pipe seats on two sides, and the lower ends of the cross pipes are hinged with the lower pipe seats on two sides.

And furthermore, the underframe assembly comprises a central joint and four bottom supporting tubes, one ends of the four bottom supporting tubes are hinged on the central joint, and the other ends of the four bottom supporting tubes are respectively hinged with the lower pipe seats at four corners.

The improved structure is characterized in that the lower end of the upper joint seat is connected with a vertical middle vertical pipe, the lower end of the middle vertical pipe is connected with a lower joint seat, and a lower short connecting pipe is connected between the lower joint seat and the side vertical pipes on the two sides.

The improved bicycle frame is further improved by comprising a pull rod assembly connected to the front side of the bicycle frame, wherein the pull rod assembly comprises a telescopic rod, two pull rod supporting tubes, pull rod lower iron and a handle, the telescopic rod is divided into an outer rod and an inner rod sleeved in the outer rod, the handle is connected to the upper end of the inner rod, the lower end of the outer rod is sleeved with the pull rod lower iron, two lower tube seats on the front side of the bicycle frame are fixedly connected with a guide piece, a moving piece is hinged in the guide piece, the upper end of each pull rod supporting tube is hinged to the pull rod lower iron, and the lower end of each pull rod supporting tube is hinged to the moving piece.

Still further, the outer pole is equipped with the hasp with interior pole junction, the hasp includes hasp seat, buckle, tenon post and spring, the hasp seat is equipped with the spout and the locating hole of intercommunication including continuous head and main part in the main part, be equipped with the side direction opening in the head, the buckle is hollow structure, and the buckle lateral wall is equipped with the through-hole that is used for cooperating the tenon post, packs into spring, tenon post and buckle in proper order in the side direction opening, and the locating hole cup joints in the outer pole upper end, and interior pole can pass buckle and spout and upwards pull out, and interior pole lower extreme is equipped with the mating holes, and the tenon post blocks into the mating holes under the spring action of spring when interior pole pulls out and reach the maximum value, makes interior pole fixed.

Furthermore, the hinged position of the two cross pipes of the front frame assembly is connected with a pull rod clamping sleeve, and the opening of the clamping sleeve faces forwards and is used for fixing the telescopic rod.

Through the utility model provides a technical scheme has following beneficial effect:

1. the front upper frame pipe and the rear upper frame pipe which are connected are arranged between the telescopic pipe groups on the same side, and the front upper frame pipe and the rear upper frame pipe on the two sides are located on the same horizontal position to form an upper support when the telescopic pipe group is unfolded, so that the support strength of the upper portion of the frame is improved.

2. The upper ends of the side stand pipes are hinged with sliding seats sleeved with the front upper frame pipe and the rear upper frame pipe, so that the side stand pipes can slide along the front upper frame pipe and the rear upper frame pipe when folded, the overall height of the folded frame is reduced, and the occupied space is reduced.

3. The upper end of the upper tube seat is matched with a tube seat cap, so that the four corners of the bucket cloth cover can be fixed, the bucket cloth cover can be conveniently replaced, in addition, peripheral equipment such as a table plate can be additionally arranged on the upper tube seat, and the bucket cloth cover is fixed through the tube seat cap.

Drawings

FIG. 1 is an expanded perspective view of an embodiment of the present invention;

FIG. 2 is a perspective view of the embodiment of the present invention in a semi-folded state;

fig. 3 is a fully folded perspective view of an embodiment of the present invention;

FIG. 4 is a schematic view of an upper tube seat and a tube seat cap according to an embodiment of the present invention;

FIG. 5 is an enlarged view at A of FIG. 1;

fig. 6 is a perspective view of the latch according to the embodiment of the present invention;

fig. 7 is an exploded view of the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 shows a foldable trolley, which comprises a trolley frame, wherein the trolley frame comprises an underframe assembly, telescopic pipe groups 10 arranged at four corners of the underframe assembly, a front frame assembly, a rear frame assembly and two groups of side frame assemblies, wherein the front frame assembly, the rear frame assembly and the two groups of side frame assemblies are connected between the telescopic pipe groups 10. The lower ends of the telescopic pipe groups 10 are all welded with wheel fork iron pieces, and the wheel forks are turned into wheels 20 and fixed by screws. The side frame assembly comprises a front upper frame pipe 31, a rear upper frame pipe 32, an upper joint seat 33 and a side vertical pipe 34, wherein the front upper frame pipe 31 and the rear upper frame pipe 32 are connected between the telescopic pipe groups 10 on the same side, the upper joint seat 33 and the side vertical pipe 34 are connected with the front upper frame pipe 31 and the rear upper frame pipe 32 respectively, the upper ends of the side vertical pipes 34 are hinged with the slide seat 35, the lower ends of the side vertical pipes are connected with the telescopic pipe groups 10 on the same side, and the front upper frame pipe 31 and the rear upper frame pipe 32 on the two sides are located on the same horizontal position to form an upper support when the frame is unfolded. The side stand pipe 34 further improves the supporting strength of the front upper frame pipe 31 and the rear upper frame pipe 32, and the upper end of the side stand pipe 34 is hinged with the sliding seat 35 sleeved with the front upper frame pipe 31 and the rear upper frame pipe 32, so that the side stand pipe 34 can slide along the front upper frame pipe 31 and the rear upper frame pipe 32 when folded, thereby reducing the overall height of the folded frame and reducing the occupied space.

As shown in fig. 2 and 3, the telescopic pipe assembly 10 includes an outer pipe 11 and an inner pipe 12 sleeved in the outer pipe 11, an upper pipe base 13 is sleeved on the upper end of the inner pipe 12, and one end of each of a front upper pipe 31 and a rear upper pipe 32 is connected to the two upper pipe bases 13.

As shown in fig. 4, the upper end of the upper tube base 13 is provided with an upper tube hole 131, the upper tube hole 131 is matched with the tube base cap 14, which can play a role of fixing four corners of the car hopper cloth cover, so as to facilitate replacing the car hopper cloth cover, in addition, the upper tube base 13 can be additionally provided with peripheral devices, such as a table board, and the peripheral devices can be fixed through the tube base cap 14.

The lower end of the outer pipe 11 is sleeved with a lower pipe seat 15, and the lower end of the side stand pipe 34 is hinged with the lower pipe seat 15.

The front frame assembly and the rear frame assembly are a group of hinged cross pipes 40, the upper ends of the cross pipes 40 are hinged with the upper pipe seats 13 on two sides, and the lower ends of the cross pipes 40 are hinged with the lower pipe seats 15 on two sides.

The underframe assembly comprises a central joint 51 and four bottom support pipes 52, wherein one ends of the four bottom support pipes 52 are hinged on the central joint 51, and the other ends are respectively hinged with the lower pipe seats 15 at four corners.

The lower end of the upper joint seat 33 is connected with a vertical middle riser 35, the lower end of the middle riser 36 is connected with a lower joint seat 37, and a lower short connecting pipe 38 is connected between the lower joint seat 37 and the side riser 34 on the two sides, so that the support strength of the side face of the frame is increased.

When the frame is folded, the folding front frame assembly and the folding rear frame assembly drive the telescopic pipe groups 10 at four corners to translate towards the center, the central joint 51 of the underframe assembly moves upwards to drive the bottom supporting pipe 52 to fold, and the upper joint seat 33, the middle vertical pipe 36 and the lower joint seat 37 of the side frame assembly move downwards to enable the whole frame to be folded and contracted in the horizontal direction; in the vertical direction, the inner tube 12 of the telescopic tube group 10 moves upwards to drive the upper tube seat 13 to move upwards, the sliding seat 35 slides towards the upper tube seats 13 at the two sides on the front upper frame tube and the rear upper frame tube, and the whole frame is contracted into a bundle assembly.

When the frame is unfolded, the front frame assembly and the rear frame assembly are unfolded to drive the four telescopic pipe groups 10 to translate towards four corners far away from the center, the central joint 51 moves downwards to drive the bottom supporting pipe 52 to be unfolded, and the upper joint seat 33, the middle vertical pipe 36 and the lower joint seat 37 of the side frame assembly move upwards to enable the whole frame to be unfolded in the horizontal direction; in the vertical direction, the inner tube 12 of the telescopic tube group 10 moves downwards to drive the upper tube seat 13 to move downwards, the sliding seat 35 slides towards the middle upper joint seat 33 on the front upper frame tube and the rear upper frame tube, the whole frame is unfolded, and the frame can be used after being sleeved with a bucket cloth cover.

With continued reference to fig. 1, the front side of the frame is further provided with a pull rod assembly, the pull rod assembly comprises a telescopic rod, two pull rod support tubes 62, a pull rod lower iron 63 and a handle 64, the telescopic rod is divided into an outer rod 611 and an inner rod 612 sleeved in the outer rod 611, the upper end of the inner rod 612 is connected with the handle 64, and the lower end of the outer rod 611 is sleeved with the pull rod lower iron 63. Referring to fig. 5, two lower tube seats 15 on the front side of the frame are fixedly connected with a guide member 65, a movable member 66 is hinged in the guide member 65, the upper end of a pull rod support tube 62 is hinged with a pull rod lower iron 63, and the lower end of the pull rod support tube is hinged with the movable member 66. The lower end of the pull rod assembly is hinged on the guide member 65 through a movable member 66, so that the pull rod assembly can rotate up and down around the guide member 65, and the trolley can be pulled conveniently.

As shown in fig. 6 and 7, in this embodiment, a lock catch is disposed at a connection position of the outer rod 611 and the inner rod 612, the lock catch includes a lock catch seat 71, a buckle 72, a tenon column 73 and a spring 74, the lock catch seat 71 includes a head 711 and a main body 712 that are connected, the main body 712 is provided with a chute 712a and a positioning hole that are communicated, the head 711 is provided with a lateral opening 711a, the buckle 72 is a hollow structure, a through hole for matching the tenon column 73 is disposed on a side wall of the buckle 72, the spring 74, the tenon column 73 and the buckle 72 are sequentially installed in the lateral opening 711a, the positioning hole is sleeved at the upper end of the outer rod 611, the inner rod 612 can be pulled out upwards through the buckle 72 and the chute 712a, the lower end of the inner rod 612 is provided with a matching hole, and when the inner rod 612 is pulled out to a maximum value, the tenon column 73 is clamped into the matching hole under the elastic force of the spring 74, so that the inner rod 612 is fixed.

And the hinged part of the two cross pipes 40 of the front frame assembly is connected with a pull rod clamping sleeve, and the opening of the clamping sleeve faces forwards and is used for fixing the telescopic rod 61 and preventing the pull rod assembly from falling outwards.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A folding cart, comprising: the frame comprises a frame, the frame includes chassis assembly, locates the flexible nest of tubes at four angles of chassis assembly and the preceding frame assembly, after-frame assembly and two sets of side bearer assemblies that connect between the flexible nest of tubes, wheel are all connected to flexible nest of tubes lower extreme, the side bearer assembly including connect preceding upper ledge pipe between the flexible nest of tubes of homonymy, back upper ledge pipe, connect preceding upper ledge pipe and back upper ledge pipe's upper connector seat and side riser, all cup jointed a sliding seat on preceding upper ledge pipe and the back upper ledge pipe, side riser upper end is articulated with the sliding seat, and the flexible nest of tubes connection of lower extreme and homonymy, preceding upper ledge pipe and the back upper ledge pipe of both sides all are located same horizontal position and form the upper support when the frame expandes.

2. A folding trolley according to claim 1, characterized in that: the telescopic pipe group comprises an outer pipe and an inner pipe sleeved in the outer pipe, an upper pipe seat is sleeved at the upper end of the inner pipe, and one end of each of the front upper frame pipe and the rear upper frame pipe is connected with the two upper pipe seats respectively.

3. A folding trolley according to claim 2, characterized in that: the upper tube seat upper end is equipped with the tube hole, and the tube hole cooperation has the tube seat cap.

4. A folding trolley according to claim 2, characterized in that: the lower end of the outer pipe is sleeved with a lower pipe seat, and the lower end of the side stand pipe is hinged with the lower pipe seat.

5. A folding trolley according to claim 4, characterized in that: the front frame assembly and the rear frame assembly are a group of hinged cross pipes, the upper ends of the cross pipes are hinged with the upper pipe seats on two sides, and the lower ends of the cross pipes are hinged with the lower pipe seats on two sides.

6. A folding trolley according to claim 4, characterized in that: the underframe assembly comprises a center joint and four bottom supporting tubes, wherein one ends of the four bottom supporting tubes are hinged to the center joint, and the other ends of the four bottom supporting tubes are respectively hinged to the lower tube seats at four corners.

7. A folding trolley according to claim 1, characterized in that: the lower end of the upper joint seat is connected with a vertical middle vertical pipe, the lower end of the middle vertical pipe is connected with a lower joint seat, and a lower short connecting pipe is connected between the lower joint seat and the side vertical pipes on the two sides.

8. A folding trolley according to claim 1, characterized in that: still including connecting the pull rod assembly at the frame front side, the pull rod assembly includes iron and handle under telescopic link, two pull rod stay tubes, the pull rod, and the telescopic link divide into the outer pole and cup joints the interior pole in the outer pole, and interior pole upper end connection handle, the pull rod iron down is cup jointed to the outer pole lower extreme, and two lower tube seats of frame front side all link firmly a guide, articulated moving part in the guide, and iron is articulated under pull rod stay tube upper end and the pull rod, and the lower extreme is articulated with the moving part.

9. A folding cart according to claim 8, wherein: the utility model discloses a pole, including the buckle, the buckle is equipped with the side direction opening, and the buckle lateral wall is equipped with the through-hole that is used for cooperating tenon post, spring, tenon post and buckle of packing into in proper order in the side direction opening, and the locating hole cup joints in the outer pole upper end, and interior pole can pass buckle and spout and upwards pull out, and interior pole lower extreme is equipped with the mating holes, and the tenon post blocks into the mating holes under the spring action of spring when interior pole pulls out and reaches the maximum value, and it is fixed to make interior pole.

10. A folding cart according to claim 8, wherein: the hinged part of the two crossed pipes of the front frame assembly is connected with a pull rod clamping sleeve, and the opening of the clamping sleeve faces forwards and is used for fixing a telescopic rod.