Foldable trolley frame

Abstract

The utility model discloses a foldable trolley frame which comprises a first supporting plate, a sliding groove is formed in the first supporting plate, a connecting plate is connected to the interior of the sliding groove in a sliding mode, clamping columns are fixedly connected to the two ends of the connecting plate, a threaded rod is rotationally connected to the interior of the first supporting plate, and the threaded rod is connected to the interior of the first supporting plate in a sliding mode. The first baffles and the second baffles are rotated towards the middle positions, and the first flexible cloth and the second flexible cloth are placed below the two first baffles and the two second baffles respectively, so that the first supporting plate and the second supporting plate rotate around the hinged position, and the first supporting plate and the second supporting plate rotate around the hinged position. And the first universal wheel is arranged in the first groove, and the second universal wheel is arranged in the second groove, so that the first supporting plate is attached to the second supporting plate, the requirement for the placement space of the device is greatly reduced, and the space occupancy of the device is reduced.

Description

Technical Field

[0001] This utility model relates to a handcart frame, specifically a foldable handcart frame. Background Technology

[0002] As people's living standards continue to improve, handcarts are increasingly becoming a part of people's lives, providing convenience not only for transporting and transferring goods, but also for shopping and camping.

[0003] However, existing handcarts are generally not foldable, and those that can be folded only allow the handle and tray to be folded. This still takes up a lot of space when carrying or transferring multiple handcarts for storage. Therefore, a foldable handcart frame is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, where handcarts are generally not foldable and foldable handcarts only allow for the folding of the handle and tray, resulting in significant space consumption when carrying or transferring multiple handcarts, this invention provides a foldable handcart frame.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a foldable handcart frame, including a first support plate. The first support plate has a sliding groove inside, and a connecting plate is slidably connected inside the sliding groove. The two ends of the connecting plate are fixedly connected to locking posts. A threaded rod is rotatably connected inside the first support plate. The middle position of the connecting plate is threadedly connected to the outer surface of the threaded rod, and the thread inside the connecting plate is adapted to the thread on the surface of the threaded rod. A rotating disk is fixedly connected to one end of the threaded rod. A second support plate is hinged to the right side of the first support plate. The second support plate has a locking groove inside, and the size of the locking groove is adapted to the shape of the locking post.

[0007] As a preferred embodiment of this utility model, a limiting block is fixedly connected to the upper surface of the first support plate, and a pull rod is rotatably connected inside the limiting block.

[0008] As a preferred technical solution of this utility model, two first limiting grooves are formed on the upper surface of the first support plate, and a first baffle is rotatably connected inside each of the two first limiting grooves, and a first flexible cloth is provided between the two first baffles.

[0009] As a preferred embodiment of the present invention, the two ends of the first flexible fabric are respectively fixedly connected with a plurality of first fixing buckles arranged in a linear manner, and the outer surfaces of the plurality of first fixing buckles are respectively fixedly connected to the interior of the two first baffles.

[0010] As a preferred embodiment of this utility model, the lower surface of the first support plate is provided with two first universal wheels, and the lower surface of the first support plate is provided with two second grooves.

[0011] As a preferred embodiment of this utility model, the lower surface of the second support plate is provided with two second universal wheels, and the lower surface of the second support plate is provided with a first groove.

[0012] As a preferred technical solution of this utility model, two second limiting grooves are formed on the upper surface of the second support plate, and a second baffle is rotatably connected inside the two second limiting grooves, and a second flexible cloth is provided between the two second baffles.

[0013] As a preferred embodiment of the present invention, the two ends of the second flexible fabric are fixedly connected with a plurality of second fixing buckles arranged in a linear manner, and the outer surfaces of the plurality of second fixing buckles are fixedly connected to the interior of the two second baffles.

[0014] The beneficial effects of this utility model are as follows: This foldable handcart frame, by rotating the first and second baffles to the middle position and placing the first and second flexible fabrics respectively below the two first and two second baffles, makes the first and second baffles fit against the upper surfaces of the first and second support plates. Then, by rotating the rotating disc and using the threaded transmission action of the threaded rod and the connecting plate, the locking pin is pulled out from the slot. Then, the first and second support plates are rotated around the hinge position of the first and second support plates, and the first universal wheel is placed in the first groove and the second universal wheel is placed in the second groove, so that the first and second support plates fit together. This greatly reduces the space required for the placement of the device and reduces the space occupancy rate of the device. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a structural schematic diagram of a foldable handcart frame according to the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the first support plate of a foldable handcart frame according to the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the first support plate of a foldable handcart frame according to the present invention;

[0019] Figure 4 This is a structural schematic diagram of a foldable handcart frame connecting plate according to the present invention;

[0020] Figure 5 This utility model relates to a foldable handcart frame. Figure 1 A schematic diagram of the structure at point A in the middle.

[0021] In the diagram: 1. First support plate; 2. Second support plate; 3. Limiting block; 4. Pull rod; 5. First baffle; 6. First limiting groove; 7. First flexible fabric; 8. First fixing buckle; 9. Rotating disc;

[0022] 10. Second baffle; 11. Second flexible fabric; 12. Second limiting groove; 13. Second fixing buckle; 14. First caster wheel; 15. First groove; 16. Second caster wheel; 17. Second groove; 18. Slot;

[0023] 19. Slide groove; 20. Locking post; 21. Connecting plate; 22. Threaded rod. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, this utility model discloses a foldable handcart frame, including a first support plate 1. A groove 19 is formed inside the first support plate 1, and a connecting plate 21 is slidably connected inside the groove 19. Locking posts 20 are fixedly connected to both ends of the connecting plate 21. A threaded rod 22 is rotatably connected inside the first support plate 1. The middle position of the connecting plate 21 is threadedly connected to the outer surface of the threaded rod 22, and the threads inside the connecting plate 21 are compatible with the threads on the surface of the threaded rod 22. A rotating disk 9 is fixedly connected to one end of the threaded rod 22. A second support plate 2 is hinged to the right side of the first support plate 1. A locking groove 18 is formed inside the second support plate 2, the size of which is compatible with the shape of the locking post 20. First, the first support plate 1 and the second support plate 2 are rotated around the hinge to make them both horizontal. Then, the rotating disk 9 is rotated, causing the threaded rod 22 to rotate. Using the threaded transmission between the threaded rod 22 and the connecting plate 21, the threaded rod 22 moves to the right. Under the push of the threaded rod 22, the two locking pins 20 move to the right and enter the slot 18 in the second support plate 2, connecting and supporting the first support plate 1 and the second support plate 2. This allows for quick assembly of the first support plate 1 and the second support plate 2, provides greater support for the device, and greatly improves the space utilization of the device during storage.

[0026] Among them, the upper surface of the first support plate 1 is fixedly connected to the limiting block 3, and the inside of the limiting block 3 is rotatably connected to the pull rod 4, which facilitates the movement of the device.

[0027] The upper surface of the first support plate 1 has two first limiting grooves 6, and the interior of each of the two first limiting grooves 6 is rotatably connected to a first baffle 5. A first flexible cloth 7 is provided between the two first baffles 5. The first limiting grooves 6 are used to limit the position of the first baffles 5.

[0028] The first flexible fabric 7 has multiple first fixing buckles 8 arranged in a linear pattern fixedly connected to both ends. The outer surfaces of the multiple first fixing buckles 8 are fixedly connected to the interior of the two first baffles 5. The first fixing buckles 8 serve to connect the first flexible fabric 7 and the first baffles 5.

[0029] The lower surface of the first support plate 1 is provided with two first universal wheels 14, and the lower surface of the first support plate 1 is provided with two second grooves 17, which serve to facilitate the placement of the second universal wheels 16.

[0030] The lower surface of the second support plate 2 is provided with two second universal wheels 16, and the lower surface of the second support plate 2 is provided with a first groove 15. The second universal wheels 16 are used to facilitate the movement of the device.

[0031] The upper surface of the second support plate 2 has two second limiting grooves 12, and the interior of the two second limiting grooves 12 is rotatably connected to a second baffle 10. A second flexible cloth 11 is provided between the two second baffles 10. The second limiting grooves 12 are used to limit the position of the second baffles 10.

[0032] The two ends of the second flexible fabric 11 are fixedly connected with a plurality of second fixing buckles 13 arranged in a linear manner. The outer surfaces of the plurality of second fixing buckles 13 are fixedly connected to the interior of the two second baffles 10. The second fixing buckles 13 serve to connect the second flexible fabric 11 and the second baffles 10.

[0033] During operation, the first support plate 1 and the second support plate 2 are first unfolded around the hinge point and placed on the same horizontal plane. Then, the rotating disk 9 is rotated, which drives the threaded rod 22 to rotate, causing the threaded rod 22 to drive the connecting plate 21 to move to the right through the threaded transmission. Under the push of the threaded rod 22, the two locking pins 20 move to the right and insert into the slot 18, supporting and fixing the first support plate 1 and the second support plate 2. Then, the first baffle 5 and the second baffle 10 are unfolded and placed in a vertical position. At this time, the first flexible cloth 7 and the second flexible cloth 11 are unfolded under the fixing action of the first fixing buckle 8 and the second fixing buckle 13, respectively. Items can be placed between the two first baffles 5 and fixed by the support of the locking pins 20. The device has a fixed function to support a large number of items. When not in use, the first baffle 5 and the second baffle 10 are rotated to the middle position, and the first flexible cloth 7 and the second flexible cloth 11 are placed below the two first baffles 5 and the two second baffles 10 respectively, so that the first baffles 5 and the second baffles 10 are in contact with the upper surfaces of the first support plate 1 and the second support plate 2. Then, the rotating disk 9 is rotated to pull the locking pin 20 out of the slot 18 by the threaded transmission action of the threaded rod 22 and the connecting plate 21. Then, the first support plate 1 and the second support plate 2 are rotated around the hinge position of the first support plate 1 and the second support plate 2, and the first universal wheel 14 is placed in the first groove 15 and the second universal wheel 16 is placed in the second groove 17, so that the first support plate 1 and the second support plate 2 are in contact, reducing the placement space of the device.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A foldable handcart frame, comprising a first support plate (1), characterized in that, The first support plate (1) has a sliding groove (19) inside, and a connecting plate (21) is slidably connected inside the sliding groove (19). The two ends of the connecting plate (21) are fixedly connected to the locking pins (20). The first support plate (1) is rotatably connected to a threaded rod (22). The middle position of the connecting plate (21) is threadedly connected to the outer surface of the threaded rod (22), and the thread inside the connecting plate (21) is compatible with the thread on the surface of the threaded rod (22). One end of the threaded rod (22) is fixedly connected to a rotating disk (9). The right side of the first support plate (1) is hinged to a second support plate (2). The second support plate (2) has a locking groove (18) inside, and the size of the locking groove (18) is compatible with the shape of the locking pin (20).

2. The foldable handcart frame according to claim 1, characterized in that, A limiting block (3) is fixedly connected to the upper surface of the first support plate (1), and a pull rod (4) is rotatably connected inside the limiting block (3).

3. The foldable handcart frame according to claim 1, characterized in that, The upper surface of the first support plate (1) has two first limiting grooves (6), and the interior of each of the two first limiting grooves (6) is rotatably connected to a first baffle (5), and a first flexible cloth (7) is provided between the two first baffles (5).

4. A foldable handcart frame according to claim 3, characterized in that, The first flexible fabric (7) has multiple first fixing buckles (8) arranged in a linear pattern fixedly connected to both ends. The outer surfaces of the multiple first fixing buckles (8) are fixedly connected to the interior of the two first baffles (5).

5. A foldable handcart frame according to claim 1, characterized in that, The lower surface of the first support plate (1) is provided with two first universal wheels (14), and the lower surface of the first support plate (1) is provided with two second grooves (17).

6. A foldable handcart frame according to claim 1, characterized in that, The lower surface of the second support plate (2) is provided with two second universal wheels (16), and the lower surface of the second support plate (2) is provided with a first groove (15).

7. A foldable handcart frame according to claim 1, characterized in that, The upper surface of the second support plate (2) has two second limiting grooves (12), and the interior of the two second limiting grooves (12) is rotatably connected to a second baffle (10), and a second flexible cloth (11) is provided between the two second baffles (10).

8. A foldable handcart frame according to claim 7, characterized in that, The two ends of the second flexible fabric (11) are fixedly connected with a plurality of second fixing buckles (13) arranged in a linear manner, and the outer surfaces of the plurality of second fixing buckles (13) are fixedly connected to the interior of the two second baffles (10).

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