A trolley support frame structure and trolley

Abstract

The utility model discloses a trolley support frame structure and a trolley, including a load-bearing plate, a frame structure, a pull rod and a moving wheel; the load-bearing plate is provided with an installation groove, and the frame structure is embedded in the installation groove; the pull rod is assembled on the outer frame; and the moving wheel is assembled on the load-bearing plate and the bottom of the frame structure. The trolley of the utility model improves its overall structural strength by embedding the assembly frame structure in the load-bearing plate; the pull rod of the trolley is assembled on the frame structure, thereby reducing the workload of the load-bearing plate when the pull rod is pulled, and improving the stability of the pull rod and the trolley assembly structure and the pull rod pulling operation; the moving wheel assembly is assembled on the frame structure and the load-bearing plate at the same time, improving the overall structural strength of the trolley. The trolley can realize independent assembly or associated assembly of the pull rod and the moving wheel to adapt to different usage requirements; the frame structure and the load-bearing plate, the above structure and the moving wheel, and the pull rod share assembly holes and bolts to reduce material costs and assembly complexity.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics trolleys, in particular to a support frame structure of a handcart and a handcart. Background Art

[0002] As a carrier for short-distance transfer of materials, logistics trolleys are widely used and in large demand. Common trolleys include a load-bearing plate for placing materials, moving wheels with a braking component, and a pull rod. The pull rod and moving wheels are mostly directly assembled on the load-bearing plate, which results in a relatively large local working load on the load-bearing plate when pulling the pull rod, and a relatively large wear on the connection structure, affecting the long-term use and the stability of the pull rod pulling operation and the moving wheel operation. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a support frame structure of a handcart and a handcart to solve the problem that in common trolleys, the pull rod and moving wheels are mostly directly assembled on the load-bearing plate, which results in a relatively large local working load on the load-bearing plate when pulling the pull rod, and a relatively large wear on the connection structure, affecting the long-term use and the stability of the pull rod pulling operation and the moving wheel operation.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: A support frame structure of a handcart includes a frame structure composed of an outer frame and inner ribs arranged inside the outer frame. Connection ends extend from the inner ribs on both sides of the outer frame, and a plurality of first mounting holes are arranged on the upper and lower surfaces of the connection ends. At least two second mounting holes are correspondingly arranged on the upper and lower surfaces of the outer frame, inner ribs, and their connection parts.

[0005] As a further description of the above technical scheme:

[0006] Both the outer frame and inner ribs include a plurality of square tubes. The frame structure is symmetrically arranged, and the overall frame structure is in the shape of a Chinese character 'Ri' or 'Mu'.

[0007] As a further description of the above technical scheme:

[0008] The centers of the first mounting holes and the second mounting holes on the outer frame are collinear.

[0009] A handcart includes a load-bearing plate, a frame structure, a pull rod, and moving wheels;

[0010] For the load-bearing plate, an installation groove is arranged thereon, the frame structure is embedded in the installation groove, and a third connection column is further arranged at the bottom of the load-bearing plate;

[0011] For the pull rod, it is assembled on the connection end of the outer frame through a first mounting seat;

[0012] For the moving wheels, they are assembled on the bottom of the load-bearing plate and the frame structure through second mounting seats.

[0013] As a further description of the above technical solution:

[0014] The sizes of the first mounting hole and the second mounting hole on the top surface of the frame structure are larger than the sizes of the corresponding first mounting hole and the second mounting hole on the bottom surface thereof.

[0015] As a further description of the above technical solution:

[0016] A first connecting column and a second connecting column are arranged in the installation groove, and the first connecting column and the second connecting column are correspondingly inserted into the first installing hole and the second installing hole on the top surface of the frame structure and abut against the outer frame or the inner rib.

[0017] As a further description of the above technical solution:

[0018] The moving wheel is arranged on the inner side or outer side of the outermost inner rib of the frame structure, and the second mounting seat is assembled on the load-bearing plate and the bottom of the frame structure in cooperation with the second mounting hole, the third connecting column and / or the first mounting hole.

[0019] As a further description of the above technical solution:

[0020] The moving wheel and the pull rod share the first mounting hole for assembly with the load-bearing plate and the frame structure.

[0021] In summary, due to the adoption of the above technical solution, the utility model has the following advantages compared with the prior art:

[0022] Beneficial effects:

[0023] The trolley of the utility model improves its overall structural strength by embedding an assembly frame structure in the load-bearing plate; compared with the common design of assembling the pull rod on the load-bearing plate, the pull rod is assembled on the frame structure, thereby reducing the workload of the load-bearing plate when pulling the pull rod, and improving the stability of the assembly structure of the pull rod and the trolley and the pulling operation of the pull rod; the moving wheel assembly is assembled on the frame structure and the load-bearing plate at the same time, which can reduce the extrusion load of the moving wheel on the load-bearing plate structure and improve the overall structural strength of the trolley. The trolley can realize independent or associated assembly of the pull rod, moving wheel, frame structure, and load-bearing plate to adapt to different usage requirements; the frame structure and the load-bearing plate, the above structure and the moving wheel, and the pull rod share assembly holes and bolts to reduce material costs and assembly complexity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 The present invention is a schematic diagram of the disassembled structure of a trolley support frame structure and a load-bearing plate according to an embodiment.

[0026] Figure 2 The present invention is a schematic diagram of the assembly structure of a trolley support frame structure and a load-bearing plate according to an embodiment.

[0027] Figure 3 The figure is a schematic diagram of the assembly structure of a trolley according to an embodiment.

[0028] Figure 4 The figure is a schematic diagram of the assembly structure of a trolley according to another embodiment.

[0029] Figure 5 The figure is a schematic diagram of the assembly structure of a trolley according to another embodiment.

[0030] Figure 6 The figure is a schematic diagram of the assembly structure of a trolley according to another embodiment.

[0031] Figure 7 The figure is a schematic diagram of the assembly structure of a trolley according to another embodiment.

[0032] Figure 8 The figure is a schematic diagram of the assembly structure of a trolley according to another embodiment.

[0033] Fig. 9 The figure is a schematic diagram of the assembly structure of a trolley according to another embodiment.

[0034] Fig.10 The present invention is a cross-sectional view of an assembly structure of a trolley support frame structure and a load-bearing plate according to an embodiment.

[0035] Legend:

[0036] 1. Frame structure; 11. Outer frame; 12. Inner ribs; 13. First mounting hole; 14. Second mounting hole; 2. Load-bearing plate; 21. Mounting groove; 22. First connecting column; 23. Second connecting column; 24. Third connecting column; 3. Pull rod; 31. First mounting seat; 4. Buffer assembly; 41. Second mounting seat. DETAILED DESCRIPTION

[0037] 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 of 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.

[0038] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0039] See also Figure 1-10 The utility model provides a technical solution: a trolley support frame structure and a trolley, comprising a frame structure 1 consisting of an outer frame 11 and inner ribs 12 arranged in the outer frame 11, connecting ends extending from the inner ribs 12 on both sides of the outer frame 11, a plurality of first mounting holes 13 are arranged on the upper and lower surfaces of the connecting ends, and at least two second mounting holes 14 are correspondingly arranged on the upper and lower surfaces of the outer frame 11, the inner ribs 12 and the connection between the two.

[0040] The outer frame 11 and the inner ribs 12 are both composed of a plurality of steel square tubes, and the frame structure 1 is symmetrically arranged. The frame structure 1 is a Japanese-shaped or Japanese-shaped structure as a whole, and the centers of the first mounting hole 13 and the second mounting hole 14 on the outer frame 11 are collinear, thereby ensuring uniform support and shaping of the load-bearing plate 2 and ensuring a stable connection structure therewith.

[0041] A trolley comprises a load-bearing plate 2, a frame structure 1, a pull rod 3 and moving wheels 4;

[0042] The load-bearing plate 2 is provided with a mounting groove 21, the frame structure 1 is embedded in the mounting groove 21, and a third connecting column 24 is also provided at the bottom of the load-bearing plate 2;

[0043] The pull rod 3 is mounted on the connecting end of the outer frame 11 through a first mounting seat 31;

[0044] The moving wheel 4 is assembled on the bottom of the load-bearing plate 2 and the frame structure 1 through a second mounting seat 41 .

[0045] The hand trolley of the utility model improves its overall structural strength by embedding an assembly frame structure in the load-bearing plate; compared with the common design in which the pull rod is assembled on the load-bearing plate, the pull rod of the utility model is assembled on the frame structure, thereby reducing the working load of the load-bearing plate when the pull rod is pulled, and improving the stability of the assembly structure of the pull rod and the hand trolley and the pulling operation of the pull rod; the moving wheel assembly is assembled on the frame structure and the load-bearing plate at the same time, which can reduce the extrusion load of the moving wheel on the load-bearing plate structure and improve the overall structural strength of the hand trolley.

[0046] In order to further improve the connection strength between the frame structure 1 and the load-bearing plate 2, and to further improve the structural strength and load-bearing capacity of the load-bearing plate 2, the size of the first mounting hole 13 and the second mounting hole 14 on the top surface of the frame structure 1 is larger than the size of the corresponding first mounting hole 13 and the second mounting hole 14 on the bottom surface thereof, and the first connecting column 22 and the second connecting column 23 are arranged in the mounting groove 21, and the first connecting column 22 and the second connecting column 23 are correspondingly inserted into the first mounting hole 13 and the second mounting hole 14 on the top surface of the frame structure 1 and abut against the outer frame 11 or the inner rib 12. With this design, the assembly structural strength of the moving wheel and the trolley is further improved.

[0047] The moving wheel 4 is arranged on the inner side or outer side of the outermost inner rib 12 of the frame structure 1, and the second mounting seat 41 cooperates with the second mounting hole 14, the third connecting column 24 and / or the first mounting hole 13 to be assembled at the bottom of the load-bearing plate 2 and the frame structure 1.

[0048] The moving wheel 4 and the pull rod 3 share the first mounting hole 13 for assembly with the load-bearing plate 2 and the frame structure 1. The above design can realize the independent assembly or associated assembly of the pull rod, the moving wheel, the frame structure, and the load-bearing plate to adapt to different usage requirements; the frame structure and the load-bearing plate, the above structure and the moving wheel, and the pull rod share the assembly holes and bolts to reduce material costs and assembly complexity. The specific independent assembly structure of the two is as follows: Figure 4 , 6 , 8, the specific associative assembly of the two is as follows Figure 3 , 5 , 7, and 9, where Fig. 9 The moving wheel 4 is assembled on the inner side of the inner rib 12.

[0049] The assembly process of the trolley in the above embodiment includes: embedding the frame structure 1 into the mounting groove 21, and the first connecting column 22 and the second connecting column 23 are correspondingly inserted into the first mounting hole 13 and the second mounting hole 14 and abut against the corresponding square tube; based on the use requirements, the first mounting seat 31 of the pull rod 3 is correspondingly positioned on the first mounting hole 13, and the second mounting seat 41 of the moving wheel 4 is correspondingly positioned on the second mounting hole 14 and the third connecting column 24, and is positioned on the first mounting hole 13 as required, and fixed with bolts to realize independent or associated assembly of the pull rod 3 and the moving wheel 4, and various positioning methods of positioning the moving wheel 4 on the inner side or outer side of the inner rib, thereby completing the overall assembly of the trolley. The above operation is convenient and suitable for mass production and assembly.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A trolley support frame structure, characterized in that: It includes a frame structure composed of an outer frame and internal ribs arranged within the outer frame. On both sides of the outer frame, connection ends extend from the internal ribs. A number of first mounting holes are provided on the upper and lower surfaces of the connection ends. At least two second mounting holes are correspondingly provided on the upper and lower surfaces of the outer frame, the internal ribs, and the connection part between the two.

2. A trolley support frame structure according to claim 1, characterized in that: Both the outer frame and the internal ribs include a number of square tubes. The frame structure is symmetrically arranged, and the overall frame structure is in the shape of a Chinese character 'Ri' or 'Mu'.

3. A trolley support frame structure according to claim 1, characterized in that: The centers of the first mounting holes and the second mounting holes on the outer frame are collinear.

4. A trolley, characterized in that: It includes a load-bearing plate, the frame structure according to any one of claims 1 - 3, a pull rod, and moving wheels; For the load-bearing plate, a mounting groove is provided thereon, and the frame structure is embedded in the mounting groove. A third connection column is also provided at the bottom of the load-bearing plate; For the pull rod, it is assembled on the connection end of the outer frame through a first mounting seat; For the moving wheels, they are assembled on the bottom of the load-bearing plate and the frame structure through second mounting seats.

5. A trolley according to claim 4, characterized in that: The sizes of the first mounting holes and the second mounting holes on the top surface of the frame structure are larger than the sizes of the corresponding first mounting holes and second mounting holes on its bottom surface.

6. A trolley according to claim 4, characterized in that: First connection columns and second connection columns are provided in the mounting groove. The first connection columns and the second connection columns are correspondingly inserted into the first mounting holes and the second mounting holes on the top surface of the frame structure and abut against the inside of the outer frame or the internal ribs.

7. A trolley according to claim 4, characterized in that: The moving wheels are arranged inside or outside the internal ribs on the outermost side of the frame structure. The second mounting seats are assembled on the bottom of the load-bearing plate and the frame structure in cooperation with the second mounting holes, the third connection columns, and / or the first mounting holes.

8. A trolley according to claim 4, characterized in that: The moving wheels and the pull rod share one of the first mounting holes for assembly with the load-bearing plate and the frame structure.

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