Hand trolley

Abstract

The invention relates to a hand trolley which comprises a trolley frame and a moving device. The frame comprises a bottom plate, two pushing parts, two guiding parts, a partition plate and a positioning plate, the two pushing parts are symmetrical with the defined axis as the symmetry axis, the two guiding parts are arranged on the two pushing parts in a one-to-one correspondence mode, the partition plate is provided with rotating shafts corresponding to the guiding parts, the two rotating shafts are connected to the two guiding parts in a one-to-one correspondence mode, and the positioning plate is arranged on the partition plate. The rotating shaft has an initial position and a working position, the positioning plate is arranged on one of the two pushing pieces, and the positioning plate corresponds to the working position; the moving device is connected to the side, away from the pushing piece, of the bottom plate. By arranging the rotatable partition plate and the guide piece matched with the partition plate, switching of the partition plate between the vertical state and the horizontal state is achieved. In this way, the partition plates can be flexibly unfolded or folded according to needs, the single-layer available space is effectively enlarged, objects of different sizes can be placed, meanwhile, manual cantilever operation is avoided, and the labor intensity can be lowered.

Description

Technical Field

[0001] This invention relates to the field of material handling equipment technology, and more specifically to a hand-operated trolley. Background Technology

[0002] Hand-operated trolleys are a common material handling tool widely used in warehouses, workshops, supermarkets, and other places. Traditional hand-operated trolleys typically employ a multi-layered fixed partition structure to achieve layered placement of items. However, this fixed partition structure has the following significant drawbacks in practical use: 1. Loading and unloading items can easily lead to personnel fatigue: Because the partitions are fixed, when placing or taking out items, operators often need to extend their arms into the narrow space between the partitions. Repeating such actions for a long time can easily lead to shoulder and arm muscle fatigue, affecting work efficiency and is not in line with ergonomic design.

[0003] 2. Low space utilization and poor adaptability: The height between each shelf is fixed, making it impossible to flexibly adjust according to the actual volume of the items being transported. When items are tall, they cannot be placed inside, while when items are small, the upper space is wasted, resulting in poor practicality and versatility of the trolley. Summary of the Invention

[0004] Based on the above description, the present invention provides a hand-pushed trolley, which aims to solve the problem that the partitions of existing hand-pushed trolleys cannot be flexibly adjusted.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A hand-operated trolley, comprising: A frame includes a base plate, pushers, guides, partitions, and positioning plates. There are two pushers and two guides, symmetrical about a defined axis. Two guides are correspondingly mounted on the two pushers. A partition is provided with a pivot for each guide, and two pivots are correspondingly connected to the two guides. Each pivot has an initial position and a working position. A positioning plate is located on one of the two pushers and corresponds to the working position. When the pivot is in the initial position, the partition is perpendicular to the base plate. When the pivot is in the working position, the partition is parallel to the base plate, and the positioning plate supports the partition. A moving device is connected to the side of the base plate opposite to the pusher, and the moving device is used to move the frame.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the guide component is a guide plate, and the guide plate has a guide hole formed in the shape of a "7". The end of the rotating shaft opposite to the partition is inserted into the guide hole.

[0008] Furthermore, there are multiple partitions, and the number of guide holes in each guide plate is equal to the number of partitions. The multiple guide holes in each guide plate are distributed at intervals from the side of the guide plate near the pusher to the side of the guide plate away from the pusher. The height of the multiple guide holes in each guide plate increases sequentially from the side of the guide plate near the pusher to the side of the guide plate away from the pusher, so as to correspond to the working positions of the partitions at different heights.

[0009] Furthermore, the frame includes linear drive members, the number of which is the same as the number of partitions. The fixed end of each linear drive member is rotatably connected to one of the push members, and the free end of each linear drive member is rotatably connected to a shaft on the same side of one of the push members.

[0010] Furthermore, the mobile device includes a load-bearing plate, a support frame, a steering mechanism, and a traveling mechanism. The base plate is disposed on the load-bearing plate, the support frame is connected to the load-bearing plate, the steering mechanism is connected to the load-bearing plate, the steering mechanism is used to drive the frame to turn, and the traveling mechanism is connected to the support frame, the traveling mechanism is used to drive the frame to move.

[0011] Furthermore, the steering mechanism includes a steering assembly and a first drive component. The steering assembly includes a steering shaft and a steering wheel. One end of the steering shaft is rotatably connected to the support plate, and the steering wheel is mounted on the other end of the steering shaft. The first drive component is disposed on the support plate, and the output end of the first drive component is connected to the steering shaft. The first drive component is used to drive the steering shaft to rotate.

[0012] Furthermore, the first driving component includes a first driving motor and a first transmission assembly. The first driving motor is mounted on the support plate, and the output end of the first driving motor is connected to the transmission shaft through the first transmission assembly.

[0013] Furthermore, the walking mechanism includes a walking component and a second driving component. The walking component includes a synchronous shaft and walking wheels. The synchronous shaft is rotatably mounted on the support frame. There are two walking wheels, which are installed one-to-one at each end of the synchronous shaft. The second driving component is mounted on the support frame, and its output end is connected to the synchronous shaft. The second driving component is used to drive the synchronous shaft to rotate.

[0014] Furthermore, the second driving component includes a second driving motor and a second transmission assembly. The second driving motor is mounted on the support frame, and the output end of the second driving motor is connected to the synchronous shaft via the second transmission assembly.

[0015] Furthermore, the moving device includes multiple buffers, and the support frame is connected to the carrier plate through the multiple buffers.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: (1) By setting a rotatable partition and a corresponding guide, the present invention realizes the conversion between the vertical and horizontal states of the partition. This allows the partition to be flexibly unfolded or retracted as needed, effectively expanding the usable space of a single layer, adapting to the placement of items of different volumes, while avoiding manual cantilever operation and reducing labor intensity.

[0017] (2) By setting up multiple partitions and guide holes of corresponding heights, the present invention can realize the independent operation of each partition. The guide hole design with increasing height makes each partition distributed in a stepped manner when in the working position, which not only ensures sufficient operating space between each layer, but also facilitates users to store and retrieve items, further improving space utilization and operational convenience.

[0018] (3) The present invention forms a stable chassis by means of a bearing plate and a support frame, and the steering mechanism and the walking mechanism work together to enable the frame to have autonomous walking and steering capabilities, which is suitable for medium and long distance transportation or narrow passage operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an assembly drawing of a hand-operated trolley provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the vehicle frame structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the guide plate structure in an embodiment of the present invention; Figure 4 This is a schematic diagram of the partition structure in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the mobile device in an embodiment of the present invention; Figure 6This is a schematic diagram of the steering mechanism in an embodiment of the present invention; Figure 7 This is a cross-sectional view of the buffer in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures: 10. Frame; 11. Base plate; 12. Pushing component; 13. Guide component; 131. Guide plate; 1311. Guide hole; 14. Partition plate; 141. Rotating shaft; 15. Positioning plate; 20. Moving device; 21. Bearing plate; 22. Support frame; 23. Steering mechanism; 231. Steering assembly; 2311. Steering shaft; 2312. Steering wheel; 232. First driving component; 2321. First drive motor; 2322. First transmission assembly; 24. Traveling mechanism; 241. Traveling assembly; 2411. Synchronous shaft; 2412. Traveling wheel; 242. Second driving component; 2421. Second drive motor; 2422. Second transmission assembly; 25. Buffer. Detailed Implementation

[0022] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be more thorough and complete.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0024] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0025] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0026] Reference Figures 1 to 4 As shown, the present invention provides a technical solution: a hand-pushed trolley, including a frame 10 and a moving device 20; the frame 10 includes a base plate 11, a pushing member 12, a guide member 13, a partition plate 14, and a positioning plate 15. There are two pushing members 12 and two guide members 13, the two pushing members 12 being axially symmetrical about a defined axis L. Two guide members 13 are correspondingly disposed on the two pushing members 12. The partition plate 14 is provided with a rotating shaft 141 corresponding to each guide member 13, and the two rotating shafts 141 are correspondingly disposed on the two pushing members 12. Connected to two guide members 13, the rotating shaft 141 has an initial position and a working position. The positioning plate 15 is located on one of the two push members 12, and the positioning plate 15 corresponds to the working position. When the rotating shaft 141 is in the initial position, the partition 14 is perpendicular to the base plate 11. When the rotating shaft 141 is in the working position, the partition 14 is parallel to the base plate 11, and the positioning plate 15 supports the partition 14. The moving device 20 is connected to the side of the base plate 11 away from the push member 12, and the moving device 20 is used to drive the frame 10 to move.

[0027] For example, the pusher 12 can be a plate-like structure or a U-shaped frame, etc.

[0028] In this embodiment, by setting a rotatable partition 14 and a cooperating guide 13, the partition 14 can be switched between a vertical state (initial position) and a horizontal state (working position). When the rotating shaft 141 is in the initial position, the partition 14 is perpendicular to the base plate 11, and the partition 14 does not carry any items, making it easy to transport or store as a whole. When the rotating shaft 141 moves to the working position along the guide 13, the partition 14 rotates to be parallel to the base plate 11 and is supported by the positioning plate 15, forming a stable bearing platform. This allows the partition 14 to be flexibly unfolded or retracted as needed, effectively expanding the usable space of a single layer, accommodating the placement of items of different volumes, while avoiding manual cantilever operation and reducing labor intensity.

[0029] Reference Figures 1 to 3 As shown, in some embodiments, the guide member 13 is a guide plate 131, and the guide plate 131 has a guide hole 1311. The guide hole 1311 is formed into a 7 shape, and the end of the rotating shaft 141 facing away from the partition plate 14 is inserted into the guide hole 1311.

[0030] In this embodiment, the 7-shaped guide hole 1311 consists of a vertical section and a horizontal section. When the partition 14 needs to be kept horizontal, the rotating shaft 141 can lift the partition 14 when it moves upward along the vertical section, and drive the partition 14 to rotate when it moves horizontally along the horizontal section, ultimately achieving a change in posture from vertical to horizontal. This guiding method operates smoothly and does not require a complex control mechanism, thereby reducing manufacturing costs.

[0031] In other embodiments, the guide 13 may include a guide rail and a slider, with the pivot 141 rotatably connected to the slider.

[0032] In this embodiment, when the rotating shaft 141 moves from the initial position to the working position, the partition 14 rotates around the axis of the rotating shaft 141, which can realize the attitude change from vertical to horizontal.

[0033] Reference Figure 3 As shown, in some embodiments, there are multiple partitions 14, and the number of guide holes 1311 in each guide plate 131 is equal to the number of partitions 14. The multiple guide holes 1311 in each guide plate 131 are distributed at intervals from the side of the guide plate 131 close to the pusher 12 to the side of the guide plate 131 away from the pusher 12. The height of the multiple guide holes 1311 in each guide plate 131 increases sequentially from the side of the guide plate 131 close to the pusher 12 to the side of the guide plate 131 away from the pusher 12, so as to correspond to the working positions of partitions 14 at different heights.

[0034] In this embodiment, by setting up multiple layers of partitions 14 and guide holes 1311 of corresponding heights, independent operation of each layer of partitions 14 can be achieved. The design of the guide holes 1311 with increasing heights makes each layer of partitions 14 distributed in a stepped manner when in the working position, which not only ensures sufficient operating space between each layer, but also facilitates users to store and retrieve items, further improving space utilization and operational convenience.

[0035] Reference Figure 3 As shown, in some embodiments, the frame 10 includes linear drive members, the number of which is the same as the number of partitions 14. The fixed end of the linear drive member is rotatably connected to a pusher 12, and the free end of the linear drive member is rotatably connected to a shaft 141 on the same side of the pusher 12.

[0036] For example, the linear drive can be a hydraulic cylinder or an electric actuator, etc.

[0037] In this embodiment, the linear drive provides power assistance for the flipping of the partition 14. When the partition 14 needs to be flipped, the linear drive extends or retracts, driving the partition 14 to move along the guide hole 1311 via the rotating shaft 141, which can reduce the manual lifting force.

[0038] Reference Figure 1 and Figure 5 As shown, in some embodiments, the mobile device 20 includes a support plate 21, a support frame 22, a steering mechanism 23, and a walking mechanism 24. The base plate 11 is disposed on the support plate 21, the support frame 22 is connected to the support plate 21, the steering mechanism 23 is connected to the support plate 21, the steering mechanism 23 is used to drive the frame 10 to turn, and the walking mechanism 24 is connected to the support frame 22, the walking mechanism 24 is used to drive the frame 10 to move.

[0039] In this embodiment, the bearing plate 21 and the support frame 22 together form a stable chassis, and the steering mechanism 23 and the walking mechanism 24 cooperate to enable the frame 10 to have autonomous walking and steering capabilities, which is suitable for medium and long distance transportation or narrow passage operations.

[0040] Reference Figures 5 to 6 As shown, in some embodiments, the steering mechanism 23 includes a steering assembly 231 and a first drive component 232. The steering assembly 231 includes a steering shaft 2311 and a steering wheel 2312. One end of the steering shaft 2311 is rotatably connected to the support plate 21, and the steering wheel 2312 is mounted on the other end of the steering shaft 2311. The first drive component 232 is disposed on the support plate 21, and the output end of the first drive component 232 is connected to the steering shaft 2311. The first drive component 232 is used to drive the steering shaft 2311 to rotate.

[0041] For example, the steering wheel 2312 can be a caster wheel or a wheel assembly consisting of a bearing housing, a connecting shaft, and two rotating wheels. The first drive component 232 can be a drive motor, etc.

[0042] In this embodiment, the first drive component 232 drives the steering wheel 2312 to deflect via the drive steering shaft 2311, thereby achieving steering control of the frame 10.

[0043] Reference Figures 5 to 6 As shown, in some embodiments, the first driving component 232 includes a first driving motor 2321 and a first transmission assembly 2322. The first driving motor 2321 is mounted on the support plate 21, and the output end of the first driving motor 2321 is connected to the transmission shaft through the first transmission assembly 2322.

[0044] For example, the first transmission component 2322 can be a gear set, a worm gear mechanism, or a synchronous gear transmission mechanism, etc.

[0045] In this embodiment, the first drive motor 2321 is used to drive the first transmission component 2322, which can provide stable steering torque to achieve directional control.

[0046] Reference Figures 5 to 6As shown, in some embodiments, the walking mechanism 24 includes a walking component 241 and a second driving component 242. The walking component 241 includes a synchronous shaft 2411 and walking wheels 2412. The synchronous shaft 2411 is rotatably mounted on the support frame 22. There are two walking wheels 2412, which are installed one-to-one at the two ends of the synchronous shaft 2411. The second driving component 242 is mounted on the support frame 22. The output end of the second driving component 242 is connected to the synchronous shaft 2411. The second driving component 242 is used to drive the synchronous shaft 2411 to rotate.

[0047] In this embodiment, the two side wheels 2412 are connected by a synchronous shaft 2411 to ensure that the two wheels rotate synchronously and avoid deviation. The second drive component 242 provides forward power, enabling the frame 10 to carry heavy objects and move smoothly.

[0048] Reference Figures 5 to 6 As shown, in some embodiments, the second drive component 242 includes a second drive motor 2421 and a second transmission component 2422. The second drive motor 2421 is mounted on the support frame 22, and the output end of the second drive motor 2421 is connected to the synchronous shaft 2411 through the second transmission component 2422.

[0049] For example, the structure of the second transmission component 2422 may be the same as that of the first transmission component 2322.

[0050] In this embodiment, the second drive motor 2421 drives the second transmission component 2422 to drive the synchronous shaft 2411 to rotate.

[0051] Reference Figure 5 and Figure 7 As shown, in some embodiments, the mobile device 20 includes a plurality of buffers 25, and the support frame 22 is connected to the carrier plate 21 through the plurality of buffers 25.

[0052] For example, the buffer 25 can be a spring buffer 25 or a pneumatic buffer 25, etc.

[0053] In this embodiment, the buffer 25 can effectively absorb the vibration and impact of the frame 10 during travel, protect the items on the vehicle from damage caused by bumps, and improve the stability of the trolley.

[0054] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hand-operated trolley, characterized in that, include: The frame (10) includes a base plate (11), a pusher (12), a guide (13), a partition (14), and a positioning plate (15). There are two pushers (12) and two guides (13). The two pushers (12) are axially symmetrical about a defined axis (L). The two guides (13) are correspondingly mounted on the two pushers (12). The partition (14) is provided with a pivot (141) for each guide (13). The two pivots (141) are connected in a corresponding manner. The rotating shaft (141) has an initial position and a working position on the two guide members (13). The positioning plate (15) is disposed on one of the two push members (12). The positioning plate (15) corresponds to the working position. When the rotating shaft (141) is in the initial position, the partition (14) is perpendicular to the bottom plate (11). When the rotating shaft (141) is in the working position, the partition (14) is parallel to the bottom plate (11), and the positioning plate (15) supports the partition (14). A moving device (20) is connected to the side of the base plate (11) away from the pusher (12), and the moving device (20) is used to drive the frame (10) to move.

2. The handcart according to claim 1, characterized in that, The guide member (13) is a guide plate (131), and a guide hole (1311) is provided on the guide plate (131). The guide hole (1311) is formed into a 7 shape, and the end of the rotating shaft (141) facing away from the partition plate (14) is inserted into the guide hole (1311).

3. The handcart according to claim 1, characterized in that, There are multiple partitions (14), and the number of guide holes (1311) in each guide plate (131) is equal to the number of partitions (14). The multiple guide holes (1311) in each guide plate (131) are distributed at intervals from the side of the guide plate (131) close to the pusher (12) to the side of the guide plate (131) away from the pusher (12). The height of the multiple guide holes (1311) in each guide plate (131) increases sequentially from the side of the guide plate (131) close to the pusher (12) to the side of the guide plate (131) away from the pusher (12), so as to correspond to the working positions of the partitions (14) at different heights.

4. The handcart according to claim 1, characterized in that, The frame (10) includes linear drive members, the number of which is the same as the number of partitions (14). The fixed end of the linear drive member is rotatably connected to one of the push members (12), and the free end of the linear drive member is rotatably connected to the shaft (141) on the same side of one of the push members (12).

5. The handcart according to claim 1, characterized in that, The mobile device (20) includes a support plate (21), a support frame (22), a steering mechanism (23), and a walking mechanism (24). The base plate (11) is disposed on the support plate (21), the support frame (22) is connected to the support plate (21), the steering mechanism (23) is connected to the support plate (21), the steering mechanism (23) is used to drive the frame (10) to turn, and the walking mechanism (24) is connected to the support frame (22) and is used to drive the frame (10) to move.

6. The handcart according to claim 5, characterized in that, The steering mechanism (23) includes a steering assembly (231) and a first drive component (232). The steering assembly (231) includes a steering shaft (2311) and a steering wheel (2312). One end of the steering shaft (2311) is rotatably connected to the support plate (21), and the steering wheel (2312) is mounted on the other end of the steering shaft (2311). The first drive component (232) is disposed on the support plate (21), and the output end of the first drive component (232) is connected to the steering shaft (2311). The first drive component (232) is used to drive the steering shaft (2311) to rotate.

7. The handcart according to claim 6, characterized in that, The first driving component (232) includes a first driving motor (2321) and a first transmission assembly (2322). The first driving motor (2321) is mounted on the support plate (21), and the output end of the first driving motor (2321) is connected to the transmission shaft through the first transmission assembly (2322).

8. The handcart according to claim 7, characterized in that, The walking mechanism (24) includes a walking component (241) and a second driving component (242). The walking component (241) includes a synchronous shaft (2411) and walking wheels (2412). The synchronous shaft (2411) is rotatably mounted on the support frame (22). There are two walking wheels (2412), which are installed one-to-one at both ends of the synchronous shaft (2411). The second driving component (242) is mounted on the support frame (22). The output end of the second driving component (242) is connected to the synchronous shaft (2411). The second driving component (242) is used to drive the synchronous shaft (2411) to rotate.

9. The handcart according to claim 8, characterized in that, The second drive component (242) includes a second drive motor (2421) and a second transmission assembly (2422). The second drive motor (2421) is mounted on the support frame (22), and the output end of the second drive motor (2421) is connected to the synchronous shaft (2411) through the second transmission assembly (2422).

10. The handcart according to any one of claims 5 to 9, characterized in that, The moving device (20) includes multiple buffers (25), and the support frame (22) is connected to the carrier plate (21) through multiple buffers (25).

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