Trolley

Abstract

The utility model relates to a kind of trolley, including first frame, second frame, trundle assembly, article placing table and article placing box, the first frame and second frame are connected to form support frame;The support frame is provided with top mounting area, middle mounting area and bottom mounting area;The article placing table is set in top mounting area, and the article placing box is set in middle mounting area and / or bottom mounting area;The trundle assembly is set in the bottom of support frame.When factory, first frame, second frame, trundle assembly, article placing table and article placing box are separated packaging, overall volume is greatly reduced, effectively reduce logistics transportation cost and warehousing space requirement;User only needs to splice first frame, second frame into support frame according to instruction book, install trundle and article placing table and article placing box, can quickly complete trolley assembly, easy to operate.

Description

Technical Field

[0001] This utility model relates to a trolley. Background Technology

[0002] Trolleys are a common mobile loading tool, widely used in supermarket shopping, home kitchen food transport, hotel room food delivery services, and other scenarios.

[0003] Existing trolleys typically use metal as their main structure, with the entire frame molded as a single piece. While this provides good load-bearing capacity and stability, it also has many shortcomings.

[0004] First, traditional trolleys, due to their integrated structure, are relatively large in size, making them inconvenient for transportation and storage. Especially during the product shipping process, their bulky packaging occupies logistical resources and increases transportation costs. Furthermore, when not in use by home or commercial users, they take up considerable space and lack flexibility. Utility Model Content

[0005] The purpose of this utility model is to provide a trolley that effectively saves packaging volume and facilitates quick assembly or disassembly by users in actual use scenarios.

[0006] The purpose of this utility model is achieved as follows:

[0007] A trolley includes a first frame, a second frame, a caster assembly, a shelf, and a storage box, wherein the first frame and the second frame are connected to form a support frame;

[0008] The support frame is provided with a top mounting area, a middle mounting area and a bottom mounting area;

[0009] The shelf is located in the top mounting area, and the storage box is located in the middle mounting area and / or the bottom mounting area.

[0010] The caster assembly is located at the bottom of the support frame.

[0011] The first frame, second frame, caster assembly, shelf, and storage box are packaged separately at the factory, significantly reducing the overall volume and effectively lowering logistics and transportation costs and storage space requirements. Users only need to assemble the first and second frames into a support frame, install the casters, shelf, and storage box according to the instructions to quickly complete the trolley assembly. The operation is simple and easy.

[0012] With the rational layout of the top, middle and bottom installation areas, users can flexibly configure the position and number of storage boxes according to actual usage scenarios, thereby meeting the needs of different items in terms of load capacity, height or number of layers; at the same time, the storage boxes are modular components that can be replaced individually, improving the convenience of maintenance and extending the product's service life.

[0013] The objective of this utility model can also be achieved by the following technical measures:

[0014] Furthermore, the first frame is provided with a first connector, and the second frame is provided with a second connector. The first connector and the second connector are connected to realize the connection between the first frame and the second frame.

[0015] Furthermore, the first frame includes a first upper U-shaped tube, a first connector, and a first lower U-shaped tube. The upper end of the first connector is provided with a first upper insertion port, and the lower end of the first connector is provided with a first lower insertion port. The end of the first upper U-shaped tube is inserted into the first upper insertion port of the first connector, and the end of the first lower U-shaped tube is inserted into the first lower insertion port of the first connector, thereby connecting the first upper U-shaped tube, the first connector, and the first lower U-shaped tube.

[0016] The second frame includes a second upper U-shaped tube, a second connector, and a second lower U-shaped tube. The upper end of the second connector is provided with a second upper insertion port, and the lower end of the second connector is provided with a second lower insertion port. The end of the second upper U-shaped tube is inserted into the second upper insertion port of the second connector, and the end of the second lower U-shaped tube is inserted into the second lower insertion port of the second connector, thereby realizing the connection between the second upper U-shaped tube, the second connector, and the second lower U-shaped tube.

[0017] The first connector and the second connector are connected to achieve the connection between the first frame and the second frame.

[0018] The first frame is divided into three modules: "first upper U-shaped tube, first connector, and first lower U-shaped tube". The second frame is divided into three modules: "second upper U-shaped tube, second connector, and second lower U-shaped tube". This allows the first upper U-shaped tube, first lower U-shaped tube, second upper U-shaped tube, and second lower U-shaped tube to be stacked, maximizing the use of the gap space, significantly reducing the overall packaging volume, and reducing transportation and storage costs.

[0019] Furthermore, the operation of assembling the first upper U-shaped tube, the first connector, and the first lower U-shaped tube into the first frame is simple, the operation of assembling the second upper U-shaped tube, the second connector, and the second lower U-shaped tube into the second frame is simple, and the connection operation between the first frame and the second frame is simple, allowing users to easily assemble the support frame.

[0020] Furthermore, a first connecting rod for connecting the caster assembly is provided at the bottom of the first frame near its front end, and a second connecting rod for connecting the caster assembly is provided at the bottom of the first frame near its rear end.

[0021] The bottom of the second frame is provided near its front end with a first connecting rod for connecting the caster assembly, and the bottom of the second frame is provided near its rear end with a second connecting rod for connecting the caster assembly.

[0022] Furthermore, the caster assembly includes a swivel wheel and a tire, the swivel wheel being connected to a first connecting rod and the tire being connected to a second connecting rod.

[0023] The caster assembly uses a combination of swivel wheels and tires, balancing flexible steering with stable load-bearing performance. The swivel wheels allow for 360° free steering, adapting to complex path changes; the tires use elastic materials for shock absorption, ensuring smooth movement on various surfaces (such as tiles, carpets, and wooden floors), improving user comfort and safety.

[0024] Furthermore, the support frame is an X-shaped support frame.

[0025] The X-shaped support frame structure forms a cross support in the center of the frame, which greatly improves the torsional rigidity in both the lateral and longitudinal directions, making the trolley less prone to deformation or wobbling when carrying heavy loads.

[0026] Furthermore, the shelf includes a tabletop, a support frame, and a railing. The support frame is bolted to the top of the support frame, thus fixing the support frame to the top installation area of ​​the support frame.

[0027] The tabletop is bolted to the support frame, thus fixing the tabletop to the support frame;

[0028] The railing is bolted to the tabletop, and the railing and the tabletop together form a top storage area.

[0029] First, the support frame is bolted to the top of the support frame. Then, the railing is bolted to the platform. Finally, the platform is bolted to the support frame, making the connection between the top shelf and the support frame more secure. The overall rigidity and load-bearing capacity are significantly improved, and it is not easy to loosen or deform due to load or external force.

[0030] All connection points are secured with bolts, and with standardized bolts and pre-drilled holes, users only need to tighten them in the order specified in the instructions to complete the installation. The operation is simple.

[0031] Furthermore, it also includes a front handrail and a rear handrail, the front handrail being bolted to the tabletop, and the rear handrail being bolted to the tabletop, the front handrail, the railing, the rear handrail, and the tabletop forming the top storage area.

[0032] The addition of front and rear handrails not only provides better ergonomic support for users when pushing and pulling the trolley, but also, together with the railing, forms a top storage area, further reinforcing the restraint of items, preventing them from rolling forward or backward or tipping over, and improving the comfort and safety of operation.

[0033] Furthermore, the storage box is placed in the middle installation area of ​​the support frame, and the storage box is fixed in the middle installation area of ​​the support frame by bolting the corresponding first connecting piece.

[0034] The storage box is secured with bolts, ensuring a tight fit between the box and the support frame and preventing wobbling. The bolt-locking mechanism also allows for quick assembly and disassembly, and the box can be easily removed when not in use, saving space.

[0035] Furthermore, the bottom of the storage box is provided with a blocking rib, the storage box sits on the transverse section of the first lower U-shaped tube and the transverse section of the second lower U-shaped tube, and the blocking rib abuts against the corresponding transverse section of the first lower U-shaped tube and the transverse section of the second lower U-shaped tube respectively.

[0036] The front end of the storage box abuts against the vertical sections of the first and second lower U-shaped tubes, so that the support frame can be detachably mounted on the bottom installation area of ​​the support frame.

[0037] The blocking ribs at the bottom of the storage box fit snugly against the horizontal section of the lower U-shaped tube, and the front face is close to the vertical section of the lower U-shaped tube. This "four-sided surrounding" limiting design does not require additional fasteners and can ensure that the storage box is firmly locked in both the horizontal and vertical directions. Even when loading heavy items and making sharp turns in the cart, it can effectively prevent the box from coming loose.

[0038] By tightly fitting the blocking ribs with the transverse section of the lower U-shaped tube, the storage box remains stable and does not shake during the pushing and pulling process, preventing items from shifting or falling due to vibration or tilting, which significantly improves safety during transportation and user confidence.

[0039] This detachable locking structure relies solely on gravity and limiters for positioning, allowing for quick disassembly and installation without tools. When cleaning, repairing, or replacing the storage box, users can easily remove it by simply lifting the box, making maintenance intuitive and convenient.

[0040] The beneficial effects of this utility model are as follows:

[0041] This utility model separates and packages the first frame, second frame, caster assembly, storage platform, and storage box at the factory, significantly reducing the overall volume and effectively lowering logistics and transportation costs and storage space requirements. Users only need to assemble the first frame and second frame into a support frame, install the casters, storage platform, and storage box according to the instructions to quickly complete the trolley assembly, which is simple and easy to operate.

[0042] This utility model, with its reasonable layout of three installation areas—top, middle, and bottom—allows users to flexibly configure the position and quantity of storage boxes according to actual usage scenarios, thereby meeting the needs of different items in terms of load capacity, height, or number of layers. At the same time, the storage boxes, as modular components, can be replaced individually, improving the convenience of maintenance and extending the product's service life.

[0043] This invention divides the first frame into three modules: a first upper U-shaped tube, a first connector, and a first lower U-shaped tube, and the second frame into three modules: a second upper U-shaped tube, a second connector, and a second lower U-shaped tube. This allows the first upper U-shaped tube, the first lower U-shaped tube, the second upper U-shaped tube, and the second lower U-shaped tube to be stacked, maximizing the use of the gap space, significantly reducing the overall packaging volume, and reducing transportation and storage costs.

[0044] In this invention, the supporting frame is first locked to the top of the support frame with bolts, then the railing is locked to the tabletop with bolts, and finally the tabletop is locked to the supporting frame, making the combination of the shelf and the support frame more secure, significantly improving the overall rigidity and load-bearing capacity, and making it less prone to loosening or deformation due to load or external force.

[0045] In this invention, the storage box is locked with bolts, and the storage box and the support frame are tightly connected to prevent shaking. Moreover, the bolt locking makes disassembly and assembly quick, and the storage box can be quickly removed when not needed, saving space.

[0046] In this invention, the blocking ribs at the bottom of the storage box fit snugly against the horizontal section of the lower U-shaped tube, and the front end face is close to the vertical section of the lower U-shaped tube. This "four-sided encirclement" limiting design does not require additional fasteners and can ensure that the storage box is firmly locked in both the horizontal and vertical directions. Even when loading heavy items and making sharp turns in the cart, it can effectively prevent the box from loosening.

[0047] In this invention, the bottom storage box is positioned solely by gravity and a limiting mechanism, allowing for quick disassembly and installation without tools. When cleaning, repairing, or replacing the storage box, users can easily remove it by simply lifting the box, making maintenance intuitive and convenient. Attached Figure Description

[0048] Figure 1 This is a diagram showing the disassembly of the trolley (during packaging and transportation).

[0049] Figure 2 This is an exploded view of the support frame for the trolley.

[0050] Figure 3 This is an assembly drawing of the first and second frames of the trolley.

[0051] Figure 4 This is a schematic diagram of the support frame for the trolley.

[0052] Figure 5 This is an exploded image of the cart.

[0053] Figure 6 A schematic diagram of installing caster components on the support frame of a trolley.

[0054] Figure 7 This is a schematic diagram of the support frame of the trolley.

[0055] Figure 8 A schematic diagram of the mounting platform for the support frame of the trolley.

[0056] Figure 9 A schematic diagram showing the installation of a storage box in the middle mounting area of ​​the support frame of the trolley.

[0057] Figure 10 This is a diagram of a small cart.

[0058] Figure 11 This is a schematic diagram of the stroller from another angle.

[0059] Figure 12 This is a cross-sectional view of the trolley.

[0060] Figure 13 This is a schematic diagram of the storage box from another angle. Detailed Implementation

[0061] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0062] Implementation examples, in conjunction with Figures 1 to 13 As shown, a trolley includes a first frame 1, a second frame 2, a caster assembly, a shelf 3, and a storage box 4. The first frame 1 and the second frame 2 are connected to form a support frame 5.

[0063] The support frame 5 is provided with a top mounting area 51, a middle mounting area 52 and a bottom mounting area 53;

[0064] The shelf 3 is located in the top mounting area 51, and the storage box 4 is located in the middle mounting area 52 and / or the bottom mounting area 53.

[0065] The caster assembly is located at the bottom of the support frame 5.

[0066] Furthermore, the first frame 1 is provided with a first connector 11, and the second frame 2 is provided with a second connector 21. The first connector 11 and the second connector 21 are connected to realize the connection between the first frame 1 and the second frame 2.

[0067] Furthermore, the first frame 1 includes a first upper U-shaped tube 12, a first connector 11, and a first lower U-shaped tube 13. The upper end of the first connector 11 is provided with a first upper insertion port 111, and the lower end of the first connector 11 is provided with a first lower insertion port 112. The end of the first upper U-shaped tube 12 is inserted into the first upper insertion port 111 of the first connector 11, and the end of the first lower U-shaped tube 13 is inserted into the first lower insertion port 112 of the first connector 11, thereby connecting the first upper U-shaped tube 12, the first connector 11, and the first lower U-shaped tube 13.

[0068] The second frame 2 includes a second upper U-shaped tube 22, a second connector 21, and a second lower U-shaped tube 23. The upper end of the second connector 21 is provided with a second upper insertion port 211, and the lower end of the second connector 21 is provided with a second lower insertion port 212. The end of the second upper U-shaped tube 22 is inserted into the second upper insertion port 211 of the second connector 21, and the end of the second lower U-shaped tube 23 is inserted into the second lower insertion port 212 of the second connector 21, thereby connecting the second upper U-shaped tube 22, the second connector 21, and the second lower U-shaped tube 23.

[0069] The first connector 11 and the second connector 21 are connected to realize the connection between the first frame 1 and the second frame 2.

[0070] Furthermore, a first connecting rod 14 for connecting the caster assembly is provided at the bottom of the first frame 1 near its front end, and a second connecting rod 15 for connecting the caster assembly is provided at the bottom of the first frame near its rear end.

[0071] The bottom of the second frame 2 near its front end is provided with a first connecting rod 14 for connecting the caster assembly, and the bottom of the second frame near its rear end is provided with a second connecting rod 15 for connecting the caster assembly.

[0072] Furthermore, the caster assembly includes a swivel wheel 6 and a tire 7, the swivel wheel 6 being connected to a first connecting rod 14, and the tire 7 being connected to a second connecting rod 15.

[0073] Furthermore, the support frame 5 has an X-shaped support frame.

[0074] Furthermore, the shelf 3 includes a tabletop 31, a support frame 32, and a railing 33. The support frame 32 is locked to the top of the support frame 5 by bolts 8, so that the support frame 32 is fixed to the top installation area 51 of the support frame 5.

[0075] The tabletop 31 is locked to the support frame 32 by bolts 8, thereby fixing the tabletop 31 to the support frame 32;

[0076] The railing 33 is locked to the tabletop 31 by bolts 8, and the railing 33 and the tabletop 31 form a top storage area 34.

[0077] Furthermore, it also includes a front handrail 35 and a rear handrail 36. The front handrail 35 is locked to the tabletop 31 by bolts 8, and the rear handrail 36 is locked to the tabletop 31 by bolts 8. The front handrail 35, the railing 33, the rear handrail 36 and the tabletop 31 form the top storage area 34.

[0078] Furthermore, the storage box 4 is placed in the middle installation area 52 of the support frame 5, and the storage box 4 is locked with the corresponding first connecting piece 11 by bolts 8, so that the storage box 4 is fixed in the middle installation area 52 of the support frame 5.

[0079] Furthermore, the bottom of the storage box 4 is provided with a blocking rib 41, the storage box 4 sits on the transverse section of the first lower U-shaped tube 13 and the transverse section of the second lower U-shaped tube 23, and the blocking rib 41 abuts against the corresponding transverse section of the first lower U-shaped tube 13 and the transverse section of the second lower U-shaped tube 23 respectively.

[0080] The front end of the storage box 4 abuts against the vertical section of the first lower U-shaped tube 13 and the vertical section of the second lower U-shaped tube 23, so that the support frame 5 can be detachably mounted on the bottom installation area 53 of the support frame 5.

[0081] The assembly method for the trolley is as follows:

[0082] 5-piece support frame assembly

[0083] First, the user inserts the end of the first upper U-shaped tube 12 into the first upper socket 111 of the first connector 11, and then inserts the end of the first lower U-shaped tube 13 into the first lower socket 112 of the first connector 11, thereby assembling the first frame 1.

[0084] Next, insert the end of the second upper U-shaped tube 22 into the second upper socket 211 of the second connector 21, and then insert the end of the second lower U-shaped tube 23 into the second lower socket 212 of the second connector 21, thereby assembling the second frame 2;

[0085] Finally, the first connector 11 and the second connector 21 are connected to form an X-shaped support frame 5.

[0086] Tire component installation

[0087] By fitting the caster wheel 6 onto the first connecting rod 14 and locking it in place, and fitting the tire 7 onto the second connecting rod 15 and locking it in place, the support frame 5 can achieve smooth movement and steering.

[0088] Top shelf 3 installation

[0089] First, use bolts 8 to fix the front handrail 35, the rear handrail 36 and the railing 33 to the pre-drilled holes on the tabletop 31 to form the top storage area 34.

[0090] Next, the support frame 32 is placed in the top mounting area 51 of the support frame 5, and the top of the support frame 5 is locked and fixed by the bolts 8;

[0091] Finally, place the platform 31 with the railing installed on the support frame 32, and then use bolts 8 to firmly lock the platform 31 and the support frame 32 to complete the installation of the shelf 3.

[0092] The central storage box 4 is fixed.

[0093] Place the storage box 4 into the middle installation area 52 of the support frame 5, align it with the screw holes on the first connector 11, and then tighten it with bolts 8 to secure the storage box 4 firmly in the middle position.

[0094] Install the bottom storage box 4

[0095] Users can choose whether to install the bottom storage box 4. If users need to place the storage box 4 in the installation area 53 at the bottom of the support frame 5, the user will press the front end of the storage box 4 against the vertical section of the first lower U-shaped tube 13 and the vertical section of the second lower U-shaped tube 23, and press the rear end of the storage box 4 against the vertical section of the first lower U-shaped tube 13 and the vertical section of the second lower U-shaped tube 23. The user will also press the bottom blocking ribs 41 of the storage box 4 against the horizontal section of the first lower U-shaped tube 13 and the horizontal section of the second lower U-shaped tube 23 to form a detachable locking structure. This ensures that the storage box 4 is firmly locked in both the horizontal and vertical directions, and can effectively prevent the box from loosening even when loading heavy items and making sharp turns in the cart.

[0096] The detachable locking structure relies solely on gravity and limiters for positioning, allowing for quick disassembly and installation without tools. When cleaning, repairing, or replacing the storage box 4, users can easily remove it by simply lifting the storage box 4, making maintenance intuitive and convenient.

Claims

1. A trolley, comprising a first frame, a second frame, a caster assembly, a shelf, and a storage box, characterized in that: The first frame and the second frame are connected to form a support frame; The support frame is provided with a top mounting area, a middle mounting area and a bottom mounting area; The shelf is located in the top mounting area, and the storage box is located in the middle mounting area and / or the bottom mounting area. The caster assembly is located at the bottom of the support frame.

2. The cart of claim 1, wherein: The first frame is provided with a first connector, and the second frame is provided with a second connector. The first connector and the second connector are connected to achieve the connection between the first frame and the second frame.

3. The cart of claim 1, wherein: The first frame includes a first upper U-shaped tube, a first connector, and a first lower U-shaped tube. The upper end of the first connector is provided with a first upper insertion port, and the lower end of the first connector is provided with a first lower insertion port. The end of the first upper U-shaped tube is inserted into the first upper insertion port of the first connector, and the end of the first lower U-shaped tube is inserted into the first lower insertion port of the first connector, thereby connecting the first upper U-shaped tube, the first connector, and the first lower U-shaped tube. The second frame includes a second upper U-shaped tube, a second connector, and a second lower U-shaped tube. The upper end of the second connector is provided with a second upper insertion port, and the lower end of the second connector is provided with a second lower insertion port. The end of the second upper U-shaped tube is inserted into the second upper insertion port of the second connector, and the end of the second lower U-shaped tube is inserted into the second lower insertion port of the second connector, thereby realizing the connection between the second upper U-shaped tube, the second connector, and the second lower U-shaped tube. The first connector and the second connector are connected to achieve the connection between the first frame and the second frame.

4. The cart of any of claims 1-3, wherein: The bottom of the first frame is provided near its front end with a first connecting rod for connecting the caster assembly, and the bottom of the first frame is provided near its rear end with a second connecting rod for connecting the caster assembly. The bottom of the second frame is provided near its front end with a first connecting rod for connecting the caster assembly, and the bottom of the second frame is provided near its rear end with a second connecting rod for connecting the caster assembly.

5. The cart of claim 4, wherein: The caster assembly includes a swivel wheel and a tire, the swivel wheel being connected to a first connecting rod and the tire being connected to a second connecting rod.

6. The cart of any of claims 1-3, wherein: The support frame is an X-shaped support frame.

7. The cart of claim 1, wherein: The storage platform includes a tabletop, a support frame, and a railing. The support frame is bolted to the top of the support frame, thus fixing the support frame to the top installation area of ​​the support frame; The tabletop is bolted to the support frame, thus fixing the tabletop to the support frame; The railing is bolted to the tabletop, and the railing and the tabletop together form a top storage area.

8. The cart of claim 7, wherein: It also includes a front handrail and a rear handrail. The front handrail is bolted to the tabletop, and the rear handrail is bolted to the tabletop. The front handrail, the railing, the rear handrail, and the tabletop form the top storage area.

9. The cart of claim 2 or 3, wherein: The storage box is placed in the middle installation area of ​​the support frame, and the storage box is fixed in the middle installation area of ​​the support frame by bolts locking the corresponding first connecting piece.

10. The cart of claim 3, wherein: The bottom of the storage box is provided with a blocking rib. The storage box sits on the transverse section of the first lower U-shaped tube and the transverse section of the second lower U-shaped tube. The blocking ribs abut against the corresponding transverse sections of the first lower U-shaped tube and the second lower U-shaped tube, respectively. The front end of the storage box abuts against the vertical sections of the first and second lower U-shaped tubes, so that the support frame can be detachably mounted on the bottom installation area of ​​the support frame.

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