Expandable trolley
By designing an adjustable telescopic cargo bed structure, the problem of insufficient storage space for logistics trolleys when there are many goods has been solved, achieving the effects of flexible expansion and space saving.
Patent Information
- Application Number
- CN202520082806.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing logistics carts have insufficient storage space when there are many goods, and cannot be flexibly expanded, which leads to inconvenience in logistics operations.
A handcart was designed that includes a handlebar, a cart frame, a telescopic cart, support legs, wheels, and an adjustment module. The telescopic cart can be opened or retracted through the adjustment module to expand or save space.
It enables the expansion of storage space when needed, facilitating the transfer of goods, and saving space after the transfer is completed, making it convenient for the transfer of goods that do not require expansion.
Smart Images
Figure CN223618757U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of handcart technology, and in particular to an expandable handcart. Background Technology
[0002] Logistics trolleys are important tools frequently used by logistics companies for transferring goods. Existing logistics trolleys include a base, a push rod, and wheels located under the base. Goods to be transferred are placed on the base, and operators move the goods by pushing and pulling the push rod.
[0003] The existing logistics trolleys have a major drawback: when there are too many goods and the storage space is insufficient, the trolleys cannot be flexibly expanded to accommodate the goods, which brings great inconvenience to logistics work.
[0004] Therefore, it is necessary to provide an expandable handcart to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an expandable handcart.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An expandable handcart includes a handle, a cart frame, a telescopic cart, support legs, casters, and an adjustment module;
[0008] The adjustment module includes a bidirectional lead screw with two threads in opposite directions. The two ends of the bidirectional lead screw are movably connected to both sides of the truck bed frame. The truck bed frame is a hollow structure with openings on both sides. One end of the bidirectional lead screw passes through one side of the truck bed frame. One end of the bidirectional lead screw is fixedly connected to the center of the turntable. The bidirectional lead screw is threadedly connected to a pair of sliders.
[0009] The two sliders are connected to corresponding connecting rods by pin hinges on both sides. One end of the two connecting rods on the same side is connected to the corresponding telescopic truck bed by pin hinges. The two telescopic truck beds are respectively set in the truck bed frame. A pair of symmetrical circular guide rods are fixedly connected to the lower side of the two telescopic truck beds. The corresponding pair of circular guide rods are respectively set in the corresponding circular sleeves. The two circular sleeves are respectively fixedly connected to the lower side of the truck bed frame.
[0010] Preferably, the handlebars are fixedly connected to one side of the truck bed frame.
[0011] Preferably, the lower sides of the two telescopic truck beds are respectively fixedly connected to the corresponding support legs.
[0012] Preferably, the lower side of a group of the support legs is fixedly connected to the corresponding movable wheel.
[0013] Compared with related technologies, the beneficial effects of this utility model are:
[0014] 1. When it is necessary to expand the storage space of the handcart, the two telescopic carts can be opened by adjusting the module. Items can be placed in the handcart consisting of the cart frame and telescopic carts for transfer. After the items have been transferred, the turntable is rotated in the opposite direction to retract the two telescopic carts into the cart frame, saving space and making it easier to transfer items that do not need to be expanded.
[0015] 2. When there is a large amount of goods and insufficient storage space, this device can open the telescopic cart by adjusting the module to expand the storage space of the handcart, saving time and effort. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention.
[0017] Figure 2 This is a three-dimensional schematic diagram of the present invention.
[0018] Figure 3 This is a three-dimensional schematic diagram of the present invention.
[0019] Figure 4 This is a schematic diagram of the connection structure after some parts of this utility model have been cut apart.
[0020] Figure 5 This is a schematic diagram of the connection structure after some parts of this utility model have been cut apart.
[0021] In the picture:
[0022] 1. Handlebars;
[0023] 2. Truck bed frame;
[0024] 3. Telescopic cargo bed;
[0025] 4. Supporting leg;
[0026] 5. Casters;
[0027] 6: Adjustment module; 61: Turntable; 62: Two-way lead screw; 63: Connecting rod; 64: Slider; 65: Circular sleeve; 66: Circular guide rod. Detailed Implementation
[0028] 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.
[0029] An expandable handcart includes a handle 1, a cart frame 2, a telescopic cart 3, support legs 4, casters 5, and an adjustment module 6;
[0030] The adjustment module 6 includes a bidirectional lead screw 62, which has two threads with opposite directions. The two ends of the bidirectional lead screw 62 are movably connected to the two sides of the truck bed frame 2. The truck bed frame 2 is a hollow structure with openings on both sides. One end of the bidirectional lead screw 62 passes through one side of the truck bed frame 2, and the end of the bidirectional lead screw 62 is fixedly connected to the center of the turntable 61. The bidirectional lead screw 62 is threadedly connected to a pair of sliders 64.
[0031] The two sliders 64 are respectively connected to the corresponding connecting rods 63 by pin hinges on both sides. One end of the two connecting rods 63 on the same side is respectively connected to the corresponding telescopic truck bed 3 by pin hinges. The two telescopic truck beds 3 are respectively set in the truck bed frame 2. A pair of symmetrical circular guide rods 66 are respectively fixedly connected to the lower side of the two telescopic truck beds 3. The corresponding pair of circular guide rods 66 are respectively set in the corresponding circular sleeves 65. The two circular sleeves 65 are respectively fixedly connected to the lower side of the truck bed frame 2.
[0032] The handlebars 1 are fixedly connected to one side of the truck bed frame 2.
[0033] The lower sides of the two telescopic truck beds 3 are respectively fixedly connected to the corresponding support legs 4.
[0034] The lower side of each set of support legs 4 is fixedly connected to the corresponding movable wheel 5.
[0035] Working principle: Pushing this device causes a set of moving wheels 5 to rotate, moving the device to the usage position. When it is necessary to expand the storage space of the handcart, rotate the turntable 61. The turntable 61 drives the bidirectional lead screw 62 to rotate. The bidirectional lead screw 62 drives the corresponding slider 64 to slide. The two sliders 64 drive the corresponding connecting rods 63 to swing, causing the connecting rods 63 to drive the corresponding telescopic cart 3 to extend along the cart frame 2. At the same time, the telescopic cart 3 drives the corresponding circular guide rods 66 to extend along the circular sleeves 65, so that the two telescopic cart 3 are in the open state. At this time, stop rotating the turntable 61 and place the items in the handcart composed of the cart frame 2 and the telescopic cart 3 for item transfer.
[0036] Once the goods have been transferred, turntable 61 is rotated in the opposite direction. The movement of some parts of this device is then opposite to the previously described direction, so it will not be elaborated further. This causes the two telescopic buckets 3 to retract into the bucket frame 2. Figure 1 As shown, this design saves space and facilitates the transfer of items that do not require expansion.
[0037] Beneficial effects: When it is necessary to expand the storage space of the handcart, the two telescopic carts 3 can be opened by adjusting the module 6. Items can be placed in the handcart consisting of the cart frame 2 and the telescopic carts 3 for transfer. After the items have been transferred, the turntable 61 is rotated in the opposite direction to retract the two telescopic carts 3 into the cart frame 2. This saves space and also makes it easier to transfer items that do not need to be expanded.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An expandable handcart, characterized in that, This expandable trolley includes: Handlebars (1), truck bed frame (2), telescopic truck bed (3), support legs (4), casters (5), adjustment module (6); The adjustment module (6) includes a bidirectional lead screw (62), which has two threads with opposite directions. The two ends of the bidirectional lead screw (62) are movably connected to the two sides of the truck bed frame (2). The truck bed frame (2) is a hollow structure with openings on both sides. One end of the bidirectional lead screw (62) passes through one side of the truck bed frame (2). One end of the bidirectional lead screw (62) is fixedly connected to the center of the turntable (61). The bidirectional lead screw (62) is threadedly connected to a pair of sliders (64). The two sliders (64) are connected to the corresponding connecting rods (63) by pins on both sides. One end of the two connecting rods (63) on the same side is connected to the corresponding telescopic bucket (3) by pins. The two telescopic buckets (3) are respectively set in the bucket frame (2). A pair of symmetrical circular guide rods (66) are fixedly connected to the lower side of the two telescopic buckets (3). The corresponding pair of circular guide rods (66) are respectively set in the corresponding circular sleeves (65). The two circular sleeves (65) are respectively fixedly connected to the lower side of the bucket frame (2).
2. The expandable handcart according to claim 1, characterized in that, The handlebars (1) are fixedly connected to one side of the truck bed frame (2).
3. The expandable handcart according to claim 1, characterized in that, The lower sides of the two telescopic truck beds (3) are respectively fixedly connected to the corresponding support legs (4).
4. The expandable handcart according to claim 1, characterized in that, The lower side of each of the support legs (4) is fixedly connected to the corresponding movable wheel (5).