A light handcart for urban and rural logistics distribution

Abstract

The utility model relates to the technical field of logistics distribution equipment discloses a portable trolley for urban and rural logistics distribution, including frame main part and the handrail of setting in the upper side of frame main part rear portion, frame main part includes rear section support plate and front support plate, and the rear section support plate is hinged with deformable connecting plate between front support plate, and deformable connecting plate contains two groups of articulated support plate, and the rear section support plate is installed with support assembly between bottom between front support plate, and rear wheel group is installed to the rear section support plate rear portion lower side, and front wheel group is installed to front support plate lower side, and the storage structure that drives front wheel group removal is installed to front support plate lower side, the utility model has the advantages compared with prior art: have excellent terrain self -adaptation ability, realize flexible variable loading space and convenient storage, and the operation intelligence is labor -saving, safe and convenient.

Description

Technical Field

[0001] This utility model relates to the field of logistics and distribution equipment technology, specifically to a lightweight handcart for urban and rural logistics and distribution. Background Technology

[0002] As a crucial link connecting the end of the supply chain with consumers, the efficiency and cost of "last-mile" transportation in urban and rural logistics and distribution directly impact service quality. Handcarts are an indispensable tool in this process. However, existing handcart technologies generally suffer from the following technical shortcomings when dealing with complex urban and rural scenarios:

[0003] Poor terrain adaptability: Traditional two-wheeled handcarts are maneuverable on flat urban roads, but they are prone to tipping over on rugged rural roads or when encountering shoulders or steps, resulting in poor passability; while small four-wheeled flatbed trucks are stable on flat ground, but are completely unable to cope with vertical obstacles such as steps.

[0004] Limited functionality: Most handcarts on the market have a fixed structure and the platform area cannot be adjusted. When delivering small batches of goods, an overly large cart is redundant and cumbersome; when it needs to be stored or transported to other means of transportation, it takes up a lot of space and has poor portability.

[0005] Lack of integrated design: Existing handcarts have limited expansion functions. They often require additional operations or accessories for things like securing goods and parking on ramps, making the process cumbersome and affecting delivery efficiency.

[0006] Therefore, this application proposes a logistics handcart that can adapt to different road conditions in urban and rural areas, balances lightweight and high strength, and has flexible storage function. Utility Model Content

[0007] I. Technical problems to be solved

[0008] The technical problem this utility model aims to solve is that it cannot adapt to different road conditions in urban and rural areas, its oversized body is redundant and bulky, it occupies a lot of space, has poor portability, and lacks flexible storage functions.

[0009] II. Technical Solution

[0010] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a lightweight handcart for urban and rural logistics distribution, including a frame body and a handle provided on the upper rear side of the frame body. The frame body includes a rear support plate and a front support plate. A deformable connecting plate is hinged between the rear support plate and the front support plate. The deformable connecting plate includes two sets of hinged support plates.

[0011] A support assembly is installed between the bottom of the rear support plate and the front support plate;

[0012] A rear wheel assembly is installed on the lower rear side of the rear support plate, a front wheel assembly is installed on the lower side of the front support plate, and a storage structure for moving the front wheel assembly is installed on the lower side of the front support plate.

[0013] As an improvement, the support assembly includes at least two sets of support rods fixedly installed on the lower side of the rear support plate. The bottom of the front support plate is provided with a limiting sleeve for inserting the support rods. A hand-tightening bolt passes through the bottom of the limiting sleeve and is connected by threads. The support rod is provided with multiple sets of limiting holes for inserting the top of the hand-tightening bolts.

[0014] As an improvement, the two sets of support plates of the deformable connecting plate are equipped with support crossbars on their lower sides. When the two sets of support plates of the deformable connecting plate are vertically stored, the two sets of support crossbars are in contact with each other. When the two sets of support plates of the deformable connecting plate are horizontally unfolded, the lower sides of the two sets of support crossbars are supported on the upper side of the support rod.

[0015] As an improvement, the storage structure includes a positioning block and a rotating plate. The positioning block is fixedly installed on the lower side of the front support plate, and its lower side is rotatably connected to the upper side of the rotating plate. An electric telescopic rod is embedded in the lower side of the front support plate. Two sets of traction rods are rotatably installed on the electric telescopic rod, and the lower end of the traction rod is rotatably connected to the lower part of the rotating plate.

[0016] As an improvement, a power supply box is fixedly installed on the lower side of the front support plate, and a switch button connected to the power supply box and controlling the traction rod is installed on the side wall.

[0017] As an improvement, the rear wheel assembly consists of two large-diameter pneumatic tires, and the two rear wheels are equipped with a linkage braking device, the operating handle of which is located on the armrest.

[0018] As an improvement, the main body of the frame is made of lightweight materials, and can be assembled by welding or bolting high-strength aluminum alloy tubing.

[0019] III. Beneficial Effects

[0020] The advantages of this utility model compared with the prior art are as follows:

[0021] 1. Through an innovative electric folding structure, the front wheel assembly can be quickly folded up and raised, transforming the vehicle from a stable four-wheel support mode to an obstacle-crossing mode where only the rear two wheels are on the ground and the front end can be raised. This design perfectly accommodates the dual needs of flat urban roads and rural steps and ditches, solving the all-terrain delivery problem in both urban and rural areas with a single vehicle.

[0022] 2. The main frame adopts a hinged design with a rear support plate, a front support plate, and a deformable connecting plate. Combined with adjustable support rods and limiting sleeves, this allows the cargo platform to freely switch between a fully extended "large-capacity mode" and a folded-down "compact mode." This not only adapts to the delivery needs of different cargo volumes but also greatly reduces the space occupied when not in use, making it easy to stack and store in delivery vehicles or place in narrow corners.

[0023] 3. The front wheel assembly retraction and extension are driven by an electric telescopic rod; mode switching is easily completed by simply pressing a switch button, eliminating the laborious process of traditional manual operation. A rear wheel linkage braking system ensures safe parking on slopes. The overall design is user-friendly, significantly reducing the workload of delivery personnel and improving operational safety and efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the upper structure of the unfolded structure of a lightweight handcart for urban and rural logistics distribution according to this utility model.

[0025] Figure 2 This is a schematic diagram of the lower side of the unfolded structure of a lightweight handcart for urban and rural logistics distribution according to this utility model.

[0026] Figure 3 This is a schematic diagram of the upper structure of the storage structure of a lightweight handcart for urban and rural logistics distribution according to this utility model.

[0027] Figure 4 This is a schematic diagram of the lower structure of the storage structure of a lightweight handcart for urban and rural logistics distribution according to this utility model.

[0028] Figure 5 This is a schematic diagram of the storage structure of a lightweight handcart for urban and rural logistics distribution according to this utility model.

[0029] As shown in the figure: 1. Rear support plate; 2. Front support plate; 3. Deformable connecting plate; 4. Support rod; 5. Limiting sleeve; 6. Hand-tightening bolt; 7. Limiting hole; 8. Rear wheel assembly; 9. Handrail; 10. Front wheel assembly; 11. Positioning block; 12. Rotating plate; 13. Traction rod; 14. Electric telescopic rod; 15. Power supply box; 16. Switch button; 17. Support crossbar. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0031] As attached Figure 1 As shown, a lightweight handcart for urban and rural logistics distribution includes a frame body and a handle 9 located on the upper rear side of the frame body. The frame body is made of lightweight materials and can be constructed by welding or bolting high-strength aluminum alloy tubing to achieve overall lightweighting while ensuring structural strength, making it easy to handle and operate.

[0032] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4 As shown, the main body of the frame includes a rear support plate 1 and a front support plate 2. A deformable connecting plate 3 is hinged between the rear support plate 1 and the front support plate 2. The deformable connecting plate 3 includes two sets of hinged support plates, so that the main body of the frame can flexibly switch between an unfolded state and a folded storage state to adapt to different loading needs and storage space.

[0033] A support assembly is installed between the bottom of the rear support plate 1 and the front support plate 2. The support assembly includes at least two sets of support rods 4 fixedly installed on the lower side of the rear support plate 1. The bottom of the front support plate 2 is provided with a limiting sleeve 5 that is inserted to cooperate with the support rods 4. A hand-tightening bolt 6 passes through the bottom of the limiting sleeve 5 and is connected by threads. The support rod 4 is provided with multiple sets of limiting holes 7 that are inserted to cooperate with the top of the hand-tightening bolt 6. By selecting different limiting holes 7 and tightening the hand-tightening bolt 6, the relative height and angle between the front support plate 2 and the rear support plate 1 can be adjusted and fixed, thereby adapting to different road conditions and slopes or forming a stable flat loading platform.

[0034] Supporting crossbars 17 are installed on the lower side of the two sets of support plates of the deformable connecting plate 3. When the two sets of support plates of the deformable connecting plate 3 are vertically folded, the two sets of supporting crossbars 17 are in contact to limit excessive folding and enhance the structural compactness in the folded state. When the two sets of support plates of the deformable connecting plate 3 are horizontally unfolded, the lower side of the two sets of supporting crossbars 17 is supported on the upper side of the support rod 4, thereby forming auxiliary support under the loading platform, significantly improving the load-bearing capacity and bending stiffness of the middle of the platform, and preventing the platform from sinking due to excessive weight of goods.

[0035] As attached Figure 1 and attached Figure 2 As shown, a rear wheel assembly 8 is installed on the lower rear side of the rear support plate 1. The rear wheel assembly 8 consists of two large-diameter pneumatic tires, and a linkage braking device is provided on the two rear wheels. The operating handle of the linkage braking device is located on the handrail 9, which makes it convenient for the pusher to operate with one hand while holding the handrail, so as to achieve synchronous braking of the two rear wheels and ensure parking safety on slopes or slippery surfaces.

[0036] As attached Figure 2 and attached Figure 5As shown, a front wheel assembly 10 is installed on the lower side of the front support plate 2. A storage structure for moving the front wheel assembly 10 is installed on the lower side of the front support plate 2. The storage structure includes a positioning block 11 and a rotating plate 12. The positioning block 11 is fixedly installed on the lower side of the front support plate 2, and its lower side is rotatably connected to the upper side of the rotating plate 12. An electric telescopic rod 14 is embedded in the lower side of the front support plate 2. Two sets of traction rods 13 are rotatably installed on the electric telescopic rod 14. The lower end of the traction rod 13 is rotatably connected to the lower part of the rotating plate 12. By extending and retracting the electric telescopic rod 14, the traction rods 13 are driven to pull or push the rotating plate 12 to rotate around the positioning block 11, thereby realizing the lowering and landing or raising and retracting of the front wheel assembly 10, and quickly switching between the "four-wheel flat ground stable pushing mode" and the "two-wheel front wheel lifting obstacle crossing mode".

[0037] A power supply box 15 is fixedly installed on the lower side of the front support plate 2, and a switch button 16 connected to the power supply box 15 and controlling the traction rod 13 is installed on the side wall, making the mode switching operation effortless and convenient.

[0038] The specific usage method is as follows:

[0039] When large-area support is required for cargo, the vehicle body, which is in its stowed state, needs to be unfolded, and the front support plate 2 is pushed forward, so that the support rod 4 at the bottom of the rear support plate 1 moves laterally in the limiting sleeve 5 at the bottom of the front support plate 2. Tighten the hand-tightening bolt 6 so that its end is inserted into the limiting hole 7, thereby locking the relative position of the support rod 4 and the limiting sleeve 5, so that the front support plate 2 and the rear support plate 1 are in a horizontal state for large-area support of cargo. The two sets of support plates of the deformable connecting plate 3 are stretched to a horizontal or near-horizontal state, and the support crossbar 17 on its lower side abuts against the upper side of the support rod 4, so that the deformable connecting plate 3 plays a role in stable support.

[0040] When storing in a confined space or after use, unscrew the hand-tightening bolt 6 from the limiting hole 7, rotate the two sets of support plates of the deformable connecting plate 3 upwards, and make the two sets of support crossbars 17 contact each other to ensure that the two sets of support plates remain stable. Tighten the hand-tightening bolt 6 so that its end is inserted into the limiting hole 7. The two sets of support plates of the deformable connecting plate 3 can allow the goods to lean against each other and be separated to prevent squeezing and bumping.

[0041] With all four wheels on the ground, pressing switch button 16 extends the electric telescopic rod 14, which in turn pushes the rotating plate 12 downwards via the traction rod 13, lowering the front wheel assembly 10 to the ground position. The vehicle is then in a four-wheel-on-the-ground state, suitable for pushing on flat ground.

[0042] When encountering obstacles such as steps, curbs, or potholes, the delivery person presses the switch button 16 to retract the electric telescopic pole 14. This, in turn, pulls the rotating plate 12 upwards via the traction rod 13, folding and lifting the front wheel assembly 10 off the ground. At this point, the weight of the front of the vehicle is supported by the structure under the front support plate 2. The delivery person then presses down on the handle 9, using leverage to easily lift the front of the vehicle, allowing the rear wheel assembly 8 to roll onto the obstacle and overcome it.

[0043] Through the above steps, this handcart can flexibly adapt to various working conditions in the entire delivery process, realizing efficient, labor-saving, and intelligent urban and rural logistics delivery operations.

[0044] 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.

[0045] 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.

[0046] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A lightweight handcart for urban and rural logistics distribution, comprising a frame body and a handle (9) disposed on the upper rear side of the frame body, characterized in that: The frame body includes a rear support plate (1) and a front support plate (2). A deformable connecting plate (3) is hinged between the rear support plate (1) and the front support plate (2). The deformable connecting plate (3) includes two sets of hinged support plates. A support assembly is installed between the bottom of the rear support plate (1) and the front support plate (2); The rear support plate (1) has a rear wheel assembly (8) installed on its lower rear side, the front support plate (2) has a front wheel assembly (10) installed on its lower side, and the front support plate (2) has a storage structure installed on its lower side to drive the front wheel assembly (10) to move.

2. The lightweight handcart for urban and rural logistics distribution according to claim 1, characterized in that: The support assembly includes at least two sets of support rods (4) fixedly installed on the lower side of the rear support plate (1). The bottom of the front support plate (2) is provided with a limiting sleeve (5) that is inserted to cooperate with the support rod (4). A hand-tightening bolt (6) passes through the bottom of the limiting sleeve (5) and is connected by a thread. The support rod (4) is provided with multiple sets of limiting holes (7) that are inserted to cooperate with the top of the hand-tightening bolt (6).

3. A lightweight handcart for urban and rural logistics distribution according to claim 2, characterized in that: The deformable connecting plate (3) has two sets of support plates with support crossbars (17) installed on the lower side. When the two sets of support plates of the deformable connecting plate (3) are vertically stored, the two sets of support crossbars (17) are in contact with each other. When the two sets of support plates of the deformable connecting plate (3) are horizontally unfolded, the lower side of the two sets of support crossbars (17) is supported on the upper side of the support rod (4).

4. A lightweight handcart for urban and rural logistics distribution according to claim 1, characterized in that: The storage structure includes a positioning block (11) and a rotating plate (12). The positioning block (11) is fixedly installed on the lower side of the front support plate (2) and its lower side is rotatably connected to the upper side of the rotating plate (12). An electric telescopic rod (14) is embedded in the lower side of the front support plate (2). Two sets of traction rods (13) are rotatably installed on the electric telescopic rod (14). The lower end of the traction rod (13) is rotatably connected to the lower part of the rotating plate (12).

5. A lightweight handcart for urban and rural logistics distribution according to claim 4, characterized in that: A power supply box (15) is fixedly installed on the lower side of the front support plate (2), and a switch button (16) connected to the power supply box (15) and controlling the traction rod (13) is installed on the side wall.

6. A lightweight handcart for urban and rural logistics distribution according to claim 1, characterized in that: The rear wheel assembly (8) consists of two large-diameter pneumatic tires, and the two rear wheels are equipped with a linkage brake device. The operating handle of the linkage brake device is located on the handrail (9).

7. A lightweight handcart for urban and rural logistics distribution according to claim 1, characterized in that: The main body of the frame is made of lightweight materials, which can be welded or bolted together using high-strength aluminum alloy tubing.

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