Heavy duty trolley

Abstract

The utility model discloses heavy load trolley, including lower bearing box and upper bearing box, the quantity of lower bearing box is several, and the periphery of the bottom of lower bearing box in the lowermost part is evenly provided with universal wheel. The utility model discloses set up several lower bearing box of assemblable, can according to actual demand flexible adjustment layer number, effectively solved the problem of traditional trolley layer number fixed. The support column realizes quick assembly through the cooperation of first insertion part and mounting groove, second insertion part and insertion slot, and is fixed with bolt and gasket again, guarantees the stability of connection, improves the convenience of assembly, makes trolley can adapt to different goods quantity and carrying demand, enhances the versatility and use efficiency, reduces enterprise purchase cost, and the device has the advantages of convenient assembly and convenient use.

Description

Technical Field

[0001] This utility model relates to the field of trolley technology, specifically a heavy-duty trolley. Background Technology

[0002] Heavy-duty trolleys are widely used in industrial production, logistics and transportation, and other scenarios to move heavy goods.

[0003] Traditional heavy-duty trolleys typically have a fixed number of layers, making it impossible to flexibly adjust the number of layers according to the actual quantity of goods and handling needs. When handling goods of different sizes, either the number of layers is insufficient to properly classify and place the goods, or the number of layers is too large, resulting in wasted space. This reduces the versatility and efficiency of the trolley, increases the cost for companies to purchase trolleys of different sizes, and ultimately makes them inconvenient to use.

[0004] Therefore, it is necessary to redesign and modify the heavy-duty trolley to effectively prevent it from becoming inconvenient to use. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a heavy-duty trolley that is easy to assemble and use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty trolley, comprising a lower support box and an upper support box, wherein there are several lower support boxes, and universal wheels are provided around the bottom of the lowest lower support box. Mounting grooves are provided at the four corners of the bottom of the inner wall of each lower support box. Support columns are provided between the lower support boxes and between the lower support box and the upper support box. Slots are provided at the four corners of the bottom of the lower support box and the four corners of the bottom of the upper support box. A first insertion part is provided at the bottom of each support column, and a second insertion part is provided at the top of each support column. The first insertion part is inserted into the mounting groove, and the second insertion part is inserted into the slot. The first insertion part and the mounting groove, and the second insertion part and the slot are both fixedly connected by bolts and washers.

[0007] As a preferred embodiment of this utility model, the slot is internally fixedly connected with four mounting posts, and the surface of the caster has four mounting openings. The mounting openings are used in conjunction with the mounting posts, and the caster is fixedly connected to the lower support box located at the bottom by bolts and washers.

[0008] As a preferred embodiment of this utility model, an installation part is provided on the left side of the upper support box. A handrail frame is fixedly connected to the surface of the installation part by bolts and washers. Three evenly distributed guide holes are provided on the top of the installation part. Three guide posts that cooperate with the guide holes are provided on the surface of the handrail frame. The guide posts are inserted into the guide holes.

[0009] As a preferred embodiment of this utility model, the bottom of both the lower and upper load-bearing boxes are fixedly connected with a mesh-like reinforcing grille.

[0010] As a preferred embodiment of this invention, a reinforcing plate is fixedly connected to the center of the support column, and the number of the reinforcing plates is two.

[0011] As a preferred embodiment of this utility model, the front and back of both the lower and upper support boxes are provided with transport grooves, and the top of the handrail is provided with a small storage groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model employs several assemblable lower support boxes, allowing for flexible adjustment of the number of layers according to actual needs, effectively solving the problem of fixed layers in traditional trolleys. The support columns achieve rapid assembly through the cooperation of the first insertion part with the mounting groove and the second insertion part with the slot, further secured with bolts and washers. This ensures both connection stability and ease of assembly, enabling the trolley to adapt to different quantities of goods and handling needs, enhancing versatility and efficiency, and reducing enterprise procurement costs. This device boasts the advantages of easy assembly and convenient use.

[0014] 2. This utility model uses casters and the bottom load-bearing box for installation via mounting holes and mounting columns, secured with bolts and washers. This connection method not only ensures the accuracy of the caster installation but also greatly improves the strength of the connection. Under heavy loads, it effectively prevents the casters from loosening or falling off, ensuring the stability and safety of the trolley during movement. It also facilitates the disassembly and replacement of the casters, extending the trolley's service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-layer load-bearing box structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the two-layer load-bearing box structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the support column structure of this utility model;

[0018] Figure 4This is a bottom view of the universal wheels and lower load-bearing box structure of this utility model:

[0019] Figure 5 This is a schematic diagram of the installation of the upper load-bearing box and the handrail frame structure of this utility model;

[0020] Figure 6 This is a bottom view of the structure of this utility model;

[0021] Figure 7 This is a front sectional view of the assembled upper and lower load-bearing boxes of this utility model;

[0022] Figure 8 This is an exploded view of the lower load-bearing box and support column structure of this utility model.

[0023] In the diagram: 1. Lower load-bearing box; 2. Upper load-bearing box; 3. Casters; 4. Mounting groove; 5. Support column; 6. Slot; 7. First insertion part; 8. Second insertion part; 9. Mounting column; 10. Mounting port; 11. Mounting part; 12. Handrail frame; 13. Guide hole; 14. Guide column; 15. Reinforcing grille; 16. Reinforcing plate; 17. Transport groove; 18. Small storage groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 8 As shown, the heavy-duty trolley includes a lower support box 1 and an upper support box 2. There are several lower support boxes 1. Universal wheels 3 are provided around the bottom of each lower support box 1. Mounting grooves 4 are provided at the four corners of the bottom inner wall of each lower support box 1. Support columns 5 are provided between lower support boxes 1 and between lower support boxes 1 and upper support boxes 2. Slots 6 are provided at the four corners of the bottom of lower support boxes 1 and upper support boxes 2. A first insertion part 7 is provided at the bottom of the support column 5, and a second insertion part 8 is provided at the top of the support column 5. The first insertion part 7 is inserted into the mounting groove 4, and the second insertion part 8 is inserted into the slot 6. The first insertion part 7 and the mounting groove 4, and the second insertion part 8 and the slot 6 are both fixedly connected by bolts and washers. The operator can assemble different numbers of lower support boxes 1 as needed, thus allowing the heavy-duty trolley to have different layers of storage space, as shown in the attached diagram. Figure 1 As shown, attached Figure 1 A schematic diagram of a three-layer load-bearing trolley is attached. Figure 1 It is assembled from two lower support boxes 1 and one upper support box 2. The support boxes are connected by four support columns 5. The first insertion part 7 and the second insertion part 8 on the surface of the support column 5 are inserted into the mounting groove 4 and the slot 6 respectively. The insertion process is a top and bottom insertion and removal type. After the support column 5 is installed in the accurate position, the support column 5 is fixed to the support box with bolts and washers to prevent the support column 5 from loosening and falling out. The mounting port 10 on the surface of the universal wheel 3 is aligned with the mounting column 9 on the surface of the bottom lower support box 1. Then, the universal wheel 3 is fixed to the lower support box 1 with bolts and washers. The bolt passes through the mounting port 10 and is threaded to the mounting column 9. When it is necessary to assemble the handrail frame 12, the guide column 14 is aligned with the guide hole 13. Then, the guide column 14 is inserted into the guide hole 13. Then, the handrail frame 12 is fixed to the mounting part 11 with bolts and washers.

[0026] refer to Figure 4 The slot 6 has four mounting posts 9 fixedly connected inside. The surface of the caster 3 has four mounting holes 10. The mounting holes 10 are used in conjunction with the mounting posts 9. The caster 3 is fixedly connected to the lower support box 1 located at the bottom by bolts and washers.

[0027] As a technical optimization of this utility model, the casters 3 are installed with the lower load-bearing box 1 through the mounting port 10 and the mounting column 9, and are fixed with bolts and washers. This connection method not only ensures the accuracy of the installation of the casters 3, but also greatly improves the firmness of the connection. Under heavy load, it can effectively prevent the casters 3 from loosening or falling off, ensuring the stability and safety of the trolley when moving. It also facilitates the disassembly and replacement of the casters 3, extending the service life of the trolley.

[0028] refer to Figure 5 An installation part 11 is provided on the left side of the upper support box 2. A handrail frame 12 is fixedly connected to the surface of the installation part 11 by bolts and washers. Three evenly distributed guide holes 13 are provided on the top of the installation part 11. Three guide posts 14 are provided on the surface of the handrail frame 12 to cooperate with the guide holes 13. The guide posts 14 are inserted into the guide holes 13.

[0029] As a technical optimization of this utility model, the handrail 12 on the left side of the upper support box 2 is fixed by the mounting part 11. The insertion and cooperation of the guide column 14 and the guide hole 13 provides precise positioning for the installation of the handrail 12. In addition, the fixing of bolts and washers makes the installation of the handrail 12 more stable and reliable. This structural design not only facilitates the quick installation and disassembly of the handrail 12, but also prevents the handrail 12 from shaking or shifting during use, ensuring that the operator pushes the trolley more effortlessly and safely, and improving the convenience of operation.

[0030] refer to Figure 4 Both the bottom of the lower load-bearing box 1 and the upper load-bearing box 2 are fixedly connected with a mesh-like reinforcing grille 15.

[0031] As a technical optimization of this utility model, the mesh-like reinforcing grille 15 fixed to the bottom of the lower load-bearing box 1 and the upper load-bearing box 2 effectively enhances the structural strength and load-bearing capacity of the box bottom. When bearing heavy objects, the reinforcing grille 15 can distribute the weight of the goods, reduce stress concentration at the bottom of the box, and prevent the box from deforming or being damaged due to heavy loads, thereby extending the service life of the load-bearing box and ensuring the stability and reliability of the trolley during long-term heavy-load use.

[0032] refer to Figure 8 The support column 5 has two reinforcing plates 16 fixedly connected to its center.

[0033] As a technical optimization of this utility model, the two reinforcing plates 16 fixed in the middle of the support column 5 can significantly improve the overall structural strength and deformation resistance of the support column 5. When the trolley is carrying heavy objects, the support column 5 needs to withstand the pressure transmitted from the upper and lower boxes. The reinforcing plates 16 can effectively disperse these pressures, prevent the support column 5 from bending or breaking, ensure the stable support of the support column 5 for each load-bearing box, and improve the load-bearing performance and safety performance of the entire trolley.

[0034] refer to Figure 1 The lower support box 1 and the upper support box 2 are provided with transport grooves 17 on the front and back, and the top of the handrail 12 is provided with a small storage groove 18.

[0035] As a technical optimization of this utility model, the transport grooves 17 provided on the front and back of the lower support box 1 and the upper support box 2 facilitate the handling and assembly of the box. Operators can easily move the box through the transport grooves 17, reducing the labor intensity during the assembly process. The small storage groove 18 on the top of the handrail 12 can conveniently place some small tools or items, making them easy for operators to access at any time, improving work efficiency and making the use of the trolley more user-friendly.

[0036] The working principle and usage process of this utility model are as follows: When using a heavy-duty trolley, firstly, determine the required number of load-bearing box layers based on the quantity and specifications of the goods to be transported. Prepare the corresponding number of lower load-bearing boxes 1 and one upper load-bearing box 2, and check that all components are intact, including casters 3, support columns 5, handrails 12, and bolts and washers for fixing. Next, assemble the load-bearing boxes. First, place the bottom lower load-bearing box 1 on a flat surface, and install the support columns 5 in the mounting slots 4 at the four corners of its inner bottom wall, ensuring that the first insertion part 7 at the bottom of the support column 5 is accurately inserted into the mounting slot 4, and that each support column 5 is installed in place. Then, according to the required number of layers, align the slots 6 at the four corners of the bottom of the next lower load-bearing box 1 with the second insertion part 8 at the top of the lower support column 5, and slowly lower it so that the second insertion part 8 is inserted into the slot 6. Finally, use bolts and washers to fix the support column 5 to the upper and lower lower load-bearing boxes 1, ensuring a firm connection. If more layers are needed, repeat the steps of installing the support column 5 and the lower load-bearing box 1, and finally install the upper load-bearing box 2 at the top, which is also connected and fixed by the support column 5.

[0037] After assembling the load-bearing boxes, install the casters 3. Align the mounting openings 10 on the surface of the casters 3 with the mounting posts 9 at the bottom of the lower load-bearing box 1. Then, use bolts and washers to fix the casters 3 to the lower load-bearing box 1, ensuring that the casters 3 are securely installed and can rotate freely. Next, install the handrail frame 12. Align the guide posts 14 on the surface of the handrail frame 12 with the guide holes 13 on the left side of the mounting part 11 of the upper load-bearing box 2. Insert the guide posts 14 to initially position the handrail frame 12. Then, use bolts and washers to fix the handrail frame 12 to the mounting part 11, ensuring that the handrail frame 12 does not wobble. After assembly, goods can be placed into each load-bearing box. The goods can be reasonably distributed in different layers of load-bearing boxes according to their type and size. The mesh-like reinforcing grille 15 can enhance the load-bearing capacity. When placing the goods, pay attention to evenly distributing them to avoid shifting the center of gravity and affecting the stability of movement. When pushing the trolley, the operator holds the handle frame 12 and uses the flexibility of the casters 3 to adjust the direction. If small tools or items need to be temporarily placed, they can be placed in the small storage groove 18 at the top of the handle frame 12.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty trolley, comprising a lower load-bearing box (1) and an upper load-bearing box (2), characterized in that: The number of the lower support box (1) is several. The bottom of the lowest lower support box (1) is provided with casters (3) around its four sides. The four corners of the bottom of the inner wall of the lower support box (1) are provided with mounting grooves (4). Support columns (5) are provided between the lower support box (1) and between the lower support box (1) and the upper support box (2). Slots (6) are provided at the four corners of the bottom of the lower support box (1) and the four corners of the bottom of the upper support box (2). The bottom of the support column (5) is provided with a first insertion part (7) and the top of the support column (5) is provided with a second insertion part (8). The first insertion part (7) is inserted into the mounting groove (4) and the second insertion part (8) is inserted into the slot (6). The first insertion part (7) and the mounting groove (4) and the second insertion part (8) and the slot (6) are fixedly connected by bolts and washers.

2. The heavy-duty trolley according to claim 1, characterized in that: The slot (6) is fixedly connected to the interior of the mounting post (9), and there are four mounting posts (9). The surface of the caster (3) is provided with mounting openings (10), and there are four mounting openings (10). The mounting openings (10) are used in conjunction with the mounting posts (9). The caster (3) is fixedly connected to the lower support box (1) located at the bottom by bolts and washers.

3. The heavy-duty trolley according to claim 2, characterized in that: An installation part (11) is provided on the left side of the upper support box (2). A handrail frame (12) is fixedly connected to the surface of the installation part (11) by bolts and washers. Three evenly distributed guide holes (13) are provided on the top of the installation part (11). Three guide posts (14) that cooperate with the guide holes (13) are provided on the surface of the handrail frame (12). The guide posts (14) are inserted into the guide holes (13).

4. The heavy-duty trolley according to claim 3, characterized in that: The bottom of both the lower support box (1) and the upper support box (2) are fixedly connected with a mesh-like reinforcing grid (15).

5. The heavy-duty trolley according to claim 4, characterized in that: The support column (5) has a reinforcing plate (16) fixedly connected to its center, and there are two reinforcing plates (16).

6. The heavy-duty trolley according to claim 5, characterized in that: The lower support box (1) and the upper support box (2) are provided with transport grooves (17) on the front and back, and the top of the handrail (12) is provided with a small storage groove (18).

Images