Manual flat-bed cart

Abstract

The utility model belongs to the technical field of flatbed trolleys, and discloses a manual flatbed trolley which comprises a bearing plate, a connecting plate is connected to one side of the bearing plate, universal wheels are installed at the bottom of the bearing plate and the bottom of the connecting plate, and a pull rod is connected to one side of the top of the bearing plate. The extension assembly comprises an extension plate, the extension assembly structure is arranged, the screw rod is screwed, the screw rod rotates on one side of the connecting plate through the bearing, and due to the fact that the screw rod is in threaded connection with the threaded hole, the extension plate moves in the cavity groove through the threaded hole and the screw rod; the length of the portion, extending out of the connecting plate, of the extending plate is continuously increased, so that the bearing area of the bearing plate and the connecting plate is increased, the bearing area of the flat-plate cart is increased, the limitation of the flat-plate cart is greatly reduced, the size of the flat-plate cart can be conveniently and rapidly adjusted according to the size of an object, and the practicability of the flat-plate cart is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flatbed carts, and in particular relates to a manual flatbed cart. Background Art

[0002] A flatbed cart is a simple means of transport that relies on manpower to pull. It has the advantages of low cost, simple maintenance, easy operation and light weight. It can work in places where motor vehicles are inconvenient to use and is very convenient for transporting lighter items over short distances.

[0003] The sizes of existing flatbed carts are basically fixed, and it is difficult to increase the load-bearing area of ​​the flatbed carts, which increases the limitations of the flatbed carts and makes it inconvenient to quickly adjust the size of the flatbed carts according to the size of the items, reducing the practicality of the flatbed carts. In addition, when some light items are transported by the flatbed carts, the items are easy to fall from the cart, thereby reducing the stability of the flatbed cart when transporting items, and it is inconvenient to limit the items on the flatbed cart, affecting the normal use of the flatbed cart. Utility Model Content

[0004] The utility model aims to provide a manual flatbed trolley to solve the problems that it is difficult to increase the load-bearing area of ​​the existing flatbed trolley and it is inconvenient to limit the position of articles on the flatbed trolley.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a manual flatbed cart, comprising: a load-bearing plate, one side of the load-bearing plate is connected to a connecting plate, the bottom of the load-bearing plate and the connecting plate are both equipped with universal wheels, and the top side of the load-bearing plate is connected to a pull rod; an extension component, the extension component includes an extension plate, the extension plate is connected to one side of the load-bearing plate, a cavity is provided inside the connecting plate, one end of the extension plate passes through one side of the connecting plate, and a threaded hole is provided in the center of one side of the extension plate, a through hole is provided through one side of the connecting plate, a bearing is installed inside the through hole, screws are provided on both sides of the bearing, the screw is rotatably connected to the connecting plate through the bearing, and one end of the screw is threadedly connected to the threaded hole.

[0006] Preferably, a clamping assembly is provided on both sides of the load-bearing plate, and the clamping assembly includes a support plate, two of the support plates are connected to the two sides of the load-bearing plate, and a bracket is connected between the two support plates, a plurality of springs are connected to the top side of the inner wall of the bracket, and one end of the plurality of springs is connected to a pressure plate.

[0007] Preferably, a motor is installed on one side of the connecting plate, and an output end of the motor is connected to one end of the screw rod.

[0008] Preferably, scale lines are symmetrically arranged on both sides of the top of the extension plate.

[0009] Preferably, slide grooves are provided on both sides of the inner wall of the cavity, and sliding blocks matching the slide grooves are connected to both sides of the extension plate.

[0010] Preferably, a plurality of through slots are formed on both sides of the two support plates, and bolts are passed through the support plates through the through slots, one end of the bolt passes through one side of the bracket, and one end of the bolt passes through the bracket and is threadedly connected with a nut.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) The utility model sets an extension component and screws the screw so that the screw can rotate on one side of the connecting plate through the bearing. Due to the threaded connection between the screw and the threaded hole, the extension plate can move inside the cavity through the threaded hole and the screw, so that the length of the extension plate extending out of the connecting plate is continuously increased, thereby increasing the bearing area of ​​the load-bearing plate and the connecting plate, thereby increasing the bearing area of ​​the flatbed trolley, greatly reducing the limitations of the flatbed trolley, facilitating the rapid adjustment of the size of the flatbed trolley according to the size of the items, and improving the practicality of the flatbed trolley.

[0013] (2) The utility model provides a clamping assembly. When it is necessary to clamp items on the top of the load-bearing plate, the pressure plate is pressed upward to compress the spring. The items to be transported are then laid under the bracket. After the laying is completed, the pressure plate is released. Under the elastic force of the spring, the pressure plate presses the top of the items, thereby limiting the position of the items on the flatbed cart, improving the stability of the flatbed cart when transporting items, and facilitating the normal use of the flatbed cart. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view of the structure of the utility model;

[0016] Figure 3 It is a right side view of the load-bearing plate of the utility model;

[0017] Figure 4 This is the appearance diagram of the utility model;

[0018] In the figure: 1. load-bearing plate; 2. connecting plate; 3. pull rod; 4. universal wheel; 5. extension plate; 6. cavity; 7. through hole; 8. bearing; 9. threaded hole; 10. screw; 11. motor; 12. scale line; 13. slide groove; 14. slider; 15. support plate; 16. bracket; 17. spring; 18. pressure plate; 19. through groove; 20. bolt; 21. nut. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Figure 1-Figure 4 As shown, the utility model provides the following technical solutions: a manual flatbed cart, comprising: a load-bearing plate 1, one side of the load-bearing plate 1 is connected to a connecting plate 2, the bottom of the load-bearing plate 1 and the connecting plate 2 are both installed with universal wheels 4, and the top side of the load-bearing plate 1 is connected to a pull rod 3; an extension component, the extension component includes an extension plate 5, the extension plate 5 is connected to one side of the load-bearing plate 1, a cavity 6 is provided inside the connecting plate 2, one end of the extension plate 5 passes through one side of the connecting plate 2, and a threaded hole 9 is centrally provided on one side of the extension plate 5, a through hole 7 is provided through one side of the connecting plate 2, a bearing 8 is installed inside the through hole 7, screws 10 are provided on both sides of the bearing 8, the screw 10 is rotatably connected to the connecting plate 2 through the bearing, and one end of the screw 10 is threadedly connected to the threaded hole 9.

[0021] Through the above technical solution:

[0022] Specifically, when the load-bearing area of ​​the flatbed cart needs to be increased, the screw 10 is screwed so that the screw 10 rotates on one side of the connecting plate 2 through the bearing 8. Due to the threaded connection between the screw 10 and the threaded hole 9, the extension plate 5 moves inside the cavity 6 through the threaded hole 9 and the screw 10, so that the length of the extension plate 5 extending out of the connecting plate continues to increase, thereby increasing the load-bearing area of ​​the load-bearing plate 1 and the connecting plate 2.

[0023] In the present utility model, further implementation modes are provided, referring to Figure 1-Figure 4 A clamping assembly is provided on both sides of the load-bearing plate 1, and the clamping assembly includes a support plate 15. The two support plates 15 are connected to the two sides of the load-bearing plate 1, and a bracket 16 is connected between the two support plates 15. A plurality of springs 17 are connected to the top side of the inner wall of the bracket 16, and a pressure plate 18 is connected to one end of the plurality of springs 17.

[0024] Through the above technical solution:

[0025] Specifically, when it is necessary to press the items on the top of the load-bearing plate 1, the pressure plate 18 is pressed upward so that the pressure plate 18 compresses the spring 17, and then the items to be transported are laid under the bracket 16. After the laying is completed, the pressure plate 18 is released. Under the elastic force of the spring 17, the pressure plate 18 presses the top of the items to limit the position of the items on the load-bearing plate 1.

[0026] Reference Figure 1-Figure 4 A motor 11 is installed on one side of the connecting plate 2, and the output end of the motor 11 is connected to one end of the screw 10. Scale lines 12 are symmetrically arranged on both sides of the top of the extension plate 5. Slide grooves 13 are opened on both sides of the inner wall of the cavity 6. Slide blocks 14 matching the slide grooves 13 are connected to both sides of the extension plate 5. Multiple through grooves 19 are opened on both sides of the two support plates 15, and bolts 20 are passed through the support plates 15 through the through grooves 19. One end of the bolt 20 passes through one side of the bracket 16, and the bolt passes through one end of the bracket 16 and is threadedly connected with a nut 21.

[0027] Through the above technical solution:

[0028] Specifically, by providing the motor 11, the screw rod 10 can be automatically rotated, thereby improving the efficiency of the size adjustment of the flatbed cart. By providing the scale line 12, it is easy to understand the extended length of the flatbed cart. By providing the slide groove 13 and the slider 14, it is easy to improve the stability of the extension plate when moving, and it is convenient to limit the position of the extension plate 5 inside the cavity 6. By providing the through groove 19, the bolt 20 and the nut 21, the height of the bracket 16 can be adjusted, so that objects with different stacking heights can be compacted.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manual flatbed cart, characterized in that: include: A load-bearing plate (1), one side of the load-bearing plate (1) is connected to a connecting plate (2), the bottoms of the load-bearing plate (1) and the connecting plate (2) are both equipped with universal wheels (4), and one side of the top of the load-bearing plate (1) is connected to a pull rod (3); An extension assembly, the extension assembly comprising an extension plate (5), the extension plate (5) being connected to one side of a load-bearing plate (1), a cavity (6) being provided inside the connecting plate (2), one end of the extension plate (5) passing through one side of the connecting plate (2), and a threaded hole (9) being provided in the center of one side of the extension plate (5), a through hole (7) being provided through one side of the connecting plate (2), a bearing (8) being installed inside the through hole (7), screws (10) being provided on both sides of the bearing (8), the screws (10) being rotationally connected to the connecting plate (2) through the bearing, and one end of the screws (10) being threadedly connected to the threaded hole (9).

2. A manual flatbed cart according to claim 1, characterized in that: A clamping assembly is provided on both sides of the load-bearing plate (1), and the clamping assembly includes a support plate (15). Two of the support plates (15) are connected to both sides of the load-bearing plate (1), and a bracket (16) is connected between the two support plates (15). A plurality of springs (17) are connected to the top side of the inner wall of the bracket (16), and one end of the plurality of springs (17) is connected to a pressure plate (18).

3. A manual flatbed cart according to claim 1, characterized in that: A motor (11) is installed on one side of the connecting plate (2), and an output end of the motor (11) is connected to one end of the screw rod (10).

4. A manual flatbed cart according to claim 1, characterized in that: Scale lines (12) are symmetrically arranged on both sides of the top of the extension plate (5).

5. A manual flatbed cart according to claim 1, characterized in that: Slide grooves (13) are provided on both sides of the inner wall of the cavity (6), and sliding blocks (14) matching the slide grooves (13) are connected to both sides of the extension plate (5).

6. A manual flatbed cart according to claim 2, characterized in that: A plurality of through slots (19) are formed through both sides of the two support plates (15), and bolts (20) are passed through the support plates (15) through the through slots (19). One end of the bolt (20) passes through one side of the bracket (16), and one end of the bolt passing through the bracket (16) is threadedly connected to a nut (21).

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