Adjustable trolley

Abstract

The utility model discloses an adjustable trolley which comprises a bearing square tube base and a telescopic pull rod, the bearing square tube base is composed of a long U-shaped square tube, a short U-shaped square tube, two short connecting rods, two long connecting rods and four telescopic connecting rods, and three connecting transverse plates are welded to the bottom end of the bearing square tube base. One ends of the two short connecting rods are symmetrically welded to the inner wall of the short U-shaped square tube, and one ends of the two long connecting rods are symmetrically welded to the inner wall of the long U-shaped square tube; a long U-shaped square tube, a short U-shaped square tube, two short connecting rods, two long connecting rods and four telescopic connecting rods jointly form a bearing square tube base, so that personnel can adjust the size of the bearing square tube base according to the size of carried goods, and the whole bearing square tube base adopts full-length welding, so that the weighing capacity is higher; meanwhile, the connecting transverse plate is welded to the bottom end of the bearing square pipe base, and the service life of the trolley is longer; meanwhile, the telescopic pull rod can be folded and stored, the trolley storage space is saved, and the trolley is relatively light and convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of trolleys, in particular to an adjustable trolley. Background Art

[0002] A handcart is a transport vehicle that is pushed and pulled by manpower. Although the technology of handcart material handling continues to develop, handcarts are still used as an indispensable transport tool. Handcarts are widely used in production and life because they are low-cost, simple to maintain, easy to operate, and light in weight. They can work in places where motor vehicles are inconvenient to use, and are very convenient for transporting light items over short distances.

[0003] For example, a trolley with an adjustable guardrail is disclosed in the utility model with authorization announcement number CN218616758U, in which the length and height of the guardrail can be adjusted as needed.

[0004] This prior art also has the following problems when in use: the weighing plate of the trolley is not adjustable in length, the loading capacity is limited when transporting wider items, and the trolley is overall heavy and large in size, making it inconvenient to store and carry, and has low applicability. Utility Model Content

[0005] In order to overcome the deficiencies in the prior art, the utility model provides an adjustable trolley, which is composed of a load-bearing square tube base composed of a long U-shaped square tube, a short U-shaped square tube, two short connecting rods, two long connecting rods and four telescopic connecting rods, so that personnel can adjust the size of the load-bearing square tube base according to the size of the goods to be transported. The load-bearing square tube base is fully welded as a whole, so the weighing capacity is stronger. At the same time, a connecting cross plate is welded at the bottom end of the load-bearing square tube base, so that the service life of the trolley is longer. At the same time, the telescopic pull rod can be folded and stored to save the storage space of the trolley. The weight of the trolley is relatively light and it is easy to carry.

[0006] To solve the above technical problems, the present utility model provides the following technical solutions: An adjustable trolley, comprising a load-bearing square pipe base and a telescopic pull rod. The load-bearing square pipe base is composed of a long U-shaped square pipe, a short U-shaped square pipe, two short connecting rods, two long connecting rods and four telescopic connecting rods. Three connecting cross plates are welded to the bottom end of the load-bearing square pipe base. One end of each of the two short connecting rods is symmetrically welded to the inner wall of the short U-shaped square pipe, and one end of each of the two long connecting rods is symmetrically welded to the inner wall of the long U-shaped square pipe. Limiting rods are symmetrically welded to the inner wall of the long U-shaped square pipe. The bottom surfaces of the limiting rods and one end of the long connecting rods are welded to the top surface of the connecting cross plate. A telescopic pull rod is rotatably connected between the limiting rods and one end of the long connecting rods. Two ends of two of the telescopic connecting rods are respectively installed on the inner sides of the two ends of the long U-shaped square pipe and the short U-shaped square pipe, and two ends of the other two telescopic connecting rods are respectively installed on the inner sides of one end of the two long connecting rods and the two short connecting rods. A limiting hole is provided on the surface of one end of the short connecting rod, and a plurality of spring buckles are evenly arranged on the surface of one end of the telescopic connecting rod. A safety rope is wound around the surface of the load-bearing square pipe base.

[0007] As a preferred technical solution of the present utility model, mounting blocks are bolted to the two side surfaces of the top end of the connecting cross plate. A square column is provided at the center of the mounting block. T-shaped holes are provided at the centers of two of the connecting cross plates. A square groove sleeve is sleeved on the surface of the square column. An anti-slip plate is provided at the top end of the square groove sleeve. An internal thread sleeve is fixedly provided on the bottom surface of the anti-slip plate. A bolt is provided inside the internal thread sleeve.

[0008] As a preferred technical solution of the present utility model, two directional wheels are installed on both sides of the bottom end of one of the connecting cross plates, and two universal wheels are respectively installed on both sides of the bottom ends of the other two directional wheels. Square mounting bottom plates are provided at the top ends of the universal wheels and the directional wheels.

[0009] As a preferred technical solution of the present utility model, fixed baffles are provided on both end surfaces of the anti-slip plate. Side guardrails are hinged to both sides of the anti-slip plate. A limiting stop block is fixedly provided on the outer side of the anti-slip plate close to the side guardrail. The anti-slip plate is located on the top surface of the load-bearing square pipe base.

[0010] As a preferred technical solution of the present utility model, a limiting sleeve rod is sleeved on the surface of the telescopic pull rod. An anti-slip handle is provided at one end of the telescopic pull rod. A buckle is provided at the bottom end of the anti-slip handle.

[0011] As a preferred technical solution of the present utility model, anti-slip hooks are fixedly provided at both ends of the safety rope wound around the surface of the load-bearing square pipe base.

[0012] As a preferred technical solution of the present utility model, the load-bearing square pipe base is made of thickened cold-rolled steel square pipes.

[0013] Compared with the prior art, the beneficial effects that the utility model can achieve are as follows:

[0014] 1. A load-bearing square pipe base is jointly composed of a long U-shaped square pipe, a short U-shaped square pipe, two short connecting rods, two long connecting rods, and four telescopic connecting rods, enabling personnel to adjust the size of the load-bearing square pipe base according to the size of the goods to be carried. The overall load-bearing square pipe base is fully welded, with stronger weighing capacity. At the same time, a connecting cross plate is welded at the bottom end of the load-bearing square pipe base, making the service life of the trolley longer; at the same time, the telescopic pull rod can be folded and stored, saving the storage space of the trolley, and the weight of the trolley is relatively light and easy to carry.

[0015] 2. Through the matching setting of the square column and the square groove sleeve, it is convenient for personnel to quickly limit and place the anti-slip plate on the top end of the load-bearing square pipe base. Through the matching setting of the T-shaped hole, the internal thread sleeve, and the bolt, it is convenient to fixedly install the anti-slip plate on the top end of the load-bearing square pipe base. The anti-slip plate is convenient for personnel to place more items for transportation, reducing the items from slipping through the gaps of the load-bearing square pipe base; through the matching setting of the fixed baffle and the side guardrail, it effectively reduces the items placed on the surface of the anti-slip plate from slipping during transportation; through the matching setting of the universal wheel and the directional wheel, the flexibility and applicability of the trolley wheels are higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall top-down folding structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the bottom view structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the side view unfolded sectional structure of the utility model.

[0019] Figure 4 It is a schematic diagram of the bottom view structure of the anti-slip plate of the utility model.

[0020] Wherein: 1. Load-bearing square pipe base; 2. Telescopic pull rod; 3. Limit rod; 4. Long connecting rod; 5. Connecting cross plate; 6. Installation block; 7. Telescopic connecting rod; 8. Short connecting rod; 9. Anti-slip handle; 10. Limit sleeve rod; 11. Square column; 12. T-shaped hole; 13. Spring buckle; 14. Universal wheel; 15. Directional wheel; 16. Square installation bottom plate; 17. Internal thread sleeve; 18. Anti-slip plate; 19. Side guardrail; 20. Fixed baffle; 21. Square groove sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the following further elaborates the present utility model in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.

[0022] For the embodiments, please refer to Figure 1 , Figure 2 , Figure 3 As shown, the present utility model provides an adjustable trolley, which includes a load-bearing square tube base 1 and a telescopic pull rod 2. The load-bearing square tube base 1 is composed of a long U-shaped square tube, a short U-shaped square tube, two short connecting rods 8, two long connecting rods 4 and four telescopic connecting rods 7. Three connecting cross plates 5 are welded at the bottom end of the load-bearing square tube base 1. One end of each of the two short connecting rods 8 is symmetrically welded to the inner wall of the short U-shaped square tube. One end of each of the two long connecting rods 4 is symmetrically welded to the inner wall of the long U-shaped square tube. Limiting rods 3 are symmetrically welded to the inner wall of the long U-shaped square tube. The bottom surfaces of the limiting rods 3 and one ends of the long connecting rods 4 are both welded to the top surface of the connecting cross plate 5. A telescopic pull rod 2 is rotatably connected between the limiting rods 3 and the long connecting rods 4. Two of the telescopic connecting rods 7 are respectively installed at the inner sides of the two ends of the long U-shaped square tube and the short U-shaped square tube. The other two telescopic connecting rods 7 are respectively installed at the inner sides of one ends of the two long connecting rods 4 and the two short connecting rods 8. A limiting hole is provided on the surface of one end of the short connecting rod 8. A plurality of spring buckles 13 are evenly arranged on the surface of one end of the telescopic connecting rod 7. A safety rope is wound around the surface of the load-bearing square tube base 1. The load-bearing square tube base 1 is jointly composed of the long U-shaped square tube, the short U-shaped square tube, the two short connecting rods 8, the two long connecting rods 4 and the four telescopic connecting rods 7, so that the size of the load-bearing square tube base 1 can be adjusted by personnel according to the size of the goods to be carried. The whole load-bearing square tube base 1 is fully welded, and the weighing capacity is stronger. At the same time, connecting cross plates 5 are welded at the bottom end of the load-bearing square tube base 1, and the service life of the trolley is longer. At the same time, the telescopic pull rod 2 can be folded and stored, saving the storage space of the trolley. The weight of the trolley is relatively light and it is convenient to carry.

[0023] As Figure 3 , Figure 4As shown in the figure, mounting blocks 6 are bolted to both sides of the top surface of the connecting cross plate 5. A square column 11 is provided at the center of the mounting block 6. T-shaped holes 12 are formed at the centers of two of the connecting cross plates 5. A square groove sleeve 21 is sleeved on the surface of the square column 11. An anti-slip plate 18 is provided at the top of the square groove sleeve 21. An internally threaded sleeve 17 is fixedly provided on the bottom surface of the anti-slip plate 18. A bolt is provided inside the internally threaded sleeve 17. Through the matching setting of the square column 11 and the square groove sleeve 21, it is convenient for personnel to quickly position and place the anti-slip plate 18 on the top of the load-bearing square pipe base 1. Through the matching setting of the T-shaped hole 12, the internally threaded sleeve 17 and the bolt, it is convenient to fixedly install the anti-slip plate 18 on the top of the load-bearing square pipe base 1. The anti-slip plate 18 is convenient for personnel to place more items for transportation and reduces the items from slipping through the gaps of the load-bearing square pipe base 1.

[0024] As Figure 2 shown, two directional wheels 15 are installed on both sides of the bottom end of one connecting cross plate 5, and two universal wheels 14 are respectively installed on both sides of the bottom ends of the other two directional wheels 15. Square mounting bottom plates 16 are provided at the tops of the universal wheels 14 and the directional wheels 15. Through the matching setting of the universal wheels 14 and the directional wheels 15, the rolling wheels of the trolley have higher flexibility and applicability.

[0025] As Figure 3 shown, fixed baffles 20 are provided on both ends of the surface of the anti-slip plate 18. Side guardrails 19 are hinged to both sides of the anti-slip plate 18. A limit stop block is fixedly provided on the outer side of the anti-slip plate 18 close to the side guardrail 19. The anti-slip plate 18 is located on the top surface of the load-bearing square pipe base 1. Through the matching setting of the fixed baffle 20 and the side guardrail 19, the items placed on the surface of the anti-slip plate 18 are effectively prevented from slipping during transportation.

[0026] As Figure 1 shown, a limit sleeve rod 10 is sleeved on the surface of the telescopic pull rod 2. An anti-slip handle 9 is provided at one end of the telescopic pull rod 2. A buckle is provided at the bottom end of the anti-slip handle 9. Through the matching setting of the limit sleeve rod 10 and the anti-slip handle 9, the supporting anti-slip force of the pull rod is increased.

[0027] As Figure 2 shown, anti-slip hooks are fixedly provided at both ends of the safety rope wound on the surface of the load-bearing square pipe base 1. Through the matching setting of the safety rope and the anti-slip hooks, it is convenient for personnel to use the safety rope to limit and fix the items and reduce the items from slipping during transportation.

[0028] As Figure 1 shown, the load-bearing square pipe base 1 is made of thickened cold-rolled steel square pipe. By using the thickened cold-rolled steel square pipe for the load-bearing square pipe base 1, the overall weight of the trolley is reduced.

[0029] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present utility model, and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable trolley, comprising a load-bearing square tube base (1) and a telescopic pull rod (2), characterized in that: The load-bearing square pipe base (1) is composed of a long U-shaped square pipe, a short U-shaped square pipe, two short connecting rods (8), two long connecting rods (4), and four telescopic connecting rods (7). Three connecting cross plates (5) are welded to the bottom end of the load-bearing square pipe base (1). One end of each of the two short connecting rods (8) is symmetrically welded to the inner wall of the short U-shaped square pipe, and one end of each of the two long connecting rods (4) is symmetrically welded to the inner wall of the long U-shaped square pipe. Limiting rods (3) are symmetrically welded to the inner wall of the long U-shaped square pipe. The limiting rods (3) and the bottom surfaces of one ends of the long connecting rods (4) are welded to the top surface of the connecting cross plate (5). A telescopic pull rod (2) is rotatably connected between the limiting rods (3) and the long connecting rods (4). Two of the telescopic connecting rods (7) are respectively installed at the inner sides of the two ends of the long U-shaped square pipe and the short U-shaped square pipe, and the other two telescopic connecting rods (7) are respectively installed at the inner sides of one ends of the two long connecting rods (4) and the two short connecting rods (8). A limiting hole is formed in the surface of one end of the short connecting rod (8), and a plurality of spring buckles (13) are evenly arranged on the surface of one end of the telescopic connecting rod (7). A safety rope is wound around the surface of the load-bearing square pipe base (1).

2. The adjustable trolley according to claim 1, wherein: Installation blocks (6) are bolted to the top surfaces on both sides of the connecting cross plate (5). A square column (11) is arranged at the center of the installation block (6). T-shaped holes (12) are formed at the centers of two of the connecting cross plates (5). A square groove sleeve (21) is sleeved on the surface of the square column (11). An anti-slip plate (18) is arranged at the top of the square groove sleeve (21). An internal thread sleeve (17) is fixedly arranged on the bottom surface of the anti-slip plate (18), and a bolt is arranged inside the internal thread sleeve (17).

3. The adjustable trolley according to claim 1, wherein: Two directional wheels (15) are installed on both sides of the bottom end of one of the connecting cross plates (5), and two universal wheels (14) are respectively installed on both sides of the bottom ends of the other two directional wheels (15). Square installation bottom plates (16) are arranged at the tops of the universal wheels (14) and the directional wheels (15).

4. The adjustable trolley according to claim 2, wherein: Fixed baffles (20) are arranged on the surface at both ends of the anti-slip plate (18). Side guardrails (19) are hinged to both sides of the anti-slip plate (18). A limiting block is fixedly arranged on the outer side of the anti-slip plate (18) close to the side guardrail (19). The anti-slip plate (18) is located on the top surface of the load-bearing square pipe base (1).

5. The adjustable trolley according to claim 1, characterized in that: A limiting sleeve rod (10) is sleeved on the surface of the telescopic pull rod (2). An anti-slip handle (9) is arranged at one end of the telescopic pull rod (2), and a buckle is arranged at the bottom end of the anti-slip handle (9).

6. The adjustable trolley according to claim 1, characterized in that: Anti-slip hooks are fixedly arranged at both ends of the safety rope wound around the surface of the load-bearing square pipe base (1).

7. An adjustable trolley according to claim 1, wherein: The load-bearing square pipe base (1) is made of thickened cold-rolled steel square pipes.

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