Telescopic loading platform for the logistics sector

Abstract

The utility model discloses a telescopic loading and unloading platform for logistics field, including first loading and unloading platform, second loading and unloading platform and control system, first loading and unloading platform is telescopic structure, and it includes first steel skeleton, first support steel sheet and first hydraulic cylinder, second loading and unloading platform is movable structure, and it includes power source, walking frame, second hydraulic cylinder and second support steel sheet. The first support steel sheet of first loading and unloading platform has the inclination and horizontal state, and second support steel sheet also has the inclination and horizontal state, and can be combined randomly according to reagent demand in actual loading and unloading, and then satisfies the need of different vehicle type's parking, and the degree of flexibility is high, and the utilization of the loading and unloading port is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of intelligent logistics, and in particular to a telescopic loading and unloading platform for use in the logistics field. Background Technology

[0002] In the logistics and warehousing sector, warehouse platforms are key facilities in logistics centers. They typically have a certain height to facilitate the transfer between goods and trucks, and are standard equipment in modern warehouses. To meet the needs of forklift access, there are often ramps connecting the warehouse platform to the ground outside the warehouse. Existing ramps are mostly fixed ramps made of concrete or steel. Concrete ramps are mostly fixed slopes, and while steel ramps can be adjusted in angle, they still require permanent occupancy of loading and unloading spaces at the edge of the platform. These two types of fixed ramps are suitable for a limited number of vehicle types and cannot meet the parking needs of various vehicle models. They are only useful when forklifts are entering or exiting the platform, remaining idle the rest of the time. This further leads to unusable parking spaces, directly reducing the number of effective loading and unloading positions in the logistics center, a problem particularly prominent in urban logistics parks where land resources are scarce. Summary of the Invention

[0003] In view of this, this utility model proposes a telescopic loading and unloading platform for use in the logistics field.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The telescopic loading and unloading platform for logistics described in this utility model includes a first loading and unloading platform, a second loading and unloading platform, and a control system. The first loading and unloading platform is a telescopic structure, which includes a first steel frame, a first support steel plate welded to the first steel frame, and at least one pair of first hydraulic cylinders disposed below the first support steel plate. One end of the first support steel plate is hinged to the top side edge of the platform, the bottom of the first hydraulic cylinder is hinged to the ground outside the platform, and its top is hinged to the first support steel plate. Two guide rails are arranged in parallel on the ground below the first loading and unloading platform and outside the warehouse, and the two guide rails are located between the first hydraulic cylinders; the second loading and unloading platform is a mobile structure, which includes a power source, a walking frame driven by the power source and moving along the guide rails, at least two pairs of second hydraulic cylinders and a second support steel plate arranged on the walking frame, and the second support steel plate is hinged to the second hydraulic cylinders; The control system includes a controller, a first tilt sensor mounted on the first support steel plate, and a second tilt sensor mounted on the second support steel plate. The signal output terminals of the first tilt sensor and the second tilt sensor are connected to the signal input terminal of the controller.

[0005] The beneficial effects are as follows: The first loading and unloading platform of this utility model is located on one side of the platform, with one end of its first supporting steel plate hinged to the platform and the other end located inside the loading and unloading port of the warehouse; the second loading and unloading platform is located below the first loading and unloading platform when not in use. When no forklifts are passing, the second loading and unloading platform can be moved below the first loading and unloading platform, without occupying the parking area outside the loading and unloading port, which can meet the parking and loading and unloading needs of large transport vehicles; in addition, the first supporting steel plate of the first loading and unloading platform has both inclined and horizontal states, and the second supporting steel plate also has both inclined and horizontal states. In actual loading and unloading, it can be arbitrarily combined according to the reagent requirements, thereby meeting the parking needs of different vehicle types. It has a high degree of flexibility and significantly improves the utilization rate of the loading and unloading port.

[0006] Preferably, the traveling frame includes movable crossbeams corresponding vertically to each of the guide rails and connecting beams fixed between two of the movable crossbeams; the second loading and unloading platform further includes a second steel frame welded to the connecting beam, the second steel frame having a horizontally arranged mounting steel plate, the bottom of the second hydraulic cylinder being hinged to the mounting steel plate, and its top end being hinged to the second supporting steel plate, with at least two pairs of second hydraulic cylinders spaced apart. The beneficial effect is that this utility model has at least two pairs of second hydraulic cylinders, ensuring load-bearing capacity.

[0007] Preferably, the first hydraulic cylinder is located outside the moving crossbeam, the width of the second supporting steel plate is less than the spacing between the moving crossbeams, and the length of the second supporting steel plate is greater than the length of the second steel frame. The advantage is that this design ensures the movement and lifting of the second loading / unloading platform.

[0008] Preferably, the maximum horizontal support height of the first loading and unloading platform is higher than that of the second loading and unloading platform; and the width of the first support steel plate is smaller than the width of the platform.

[0009] Preferably, each of the moving crossbeams is provided with a drive wheel at intervals, and each drive wheel is connected to the power source. The power source is preferably a motor and a reducer, with each drive wheel corresponding to a set of motor and reducer. Multiple motors and reducers are used to drive the second loading / unloading platform to move along the guide rail. Alternatively, a single high-power motor and reducer can be used, connected to the axle of one pair of drive wheels via a chain drive assembly.

[0010] Preferably, the control system further includes an initial positioning switch and an end positioning switch disposed along the guide rail, the signal output terminals of the initial positioning switch and the end positioning switch being connected to the signal input terminal of the controller. The advantage is that this invention utilizes two positioning switches to determine the position of the second loading / unloading platform, facilitating the storage and deployment of the second loading / unloading platform. Of course, in actual operation, the position of the second loading / unloading platform can also be determined by manual observation.

[0011] Compared with the prior art, the advantages of this utility model are: The first loading and unloading platform of this utility model is located on one side of the platform, with one end of its first supporting steel plate hinged to the platform and the other end located inside the loading and unloading port of the warehouse. The second loading and unloading platform is located below the first loading and unloading platform when not in use. When no forklifts are passing, the second loading and unloading platform can be moved below the first loading and unloading platform, without occupying the parking area outside the loading and unloading port, which can meet the parking and loading and unloading needs of large transport vehicles. In addition, the first supporting steel plate of the first loading and unloading platform has both inclined and horizontal states, and the second supporting steel plate also has both inclined and horizontal states. In actual loading and unloading, it can be arbitrarily combined according to reagent requirements, thereby meeting the parking needs of different vehicle types. It has a high degree of flexibility and significantly improves the utilization rate of the loading and unloading port, which has significant promotional value. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model. In the diagram, the second loading and unloading platform is located inside the first loading and unloading platform.

[0013] Figure 2 yes Figure 1 Top view.

[0014] Figure 3 This is a circuit block diagram of this utility model.

[0015] Figure 4 This is the second usage state of this utility model. In the figure, the first loading and unloading platform is in the first state, and the second loading and unloading platform is in the third state, with a height difference of 0.6m-1.1m.

[0016] Figure 5 This is the third usage state of the utility model. In the figure, both the first and second loading / unloading platforms are tilted, and the tilt angles of the first and second loading / unloading platforms are the same.

[0017] Figure 6 This is the fourth usage state of this utility model. In the figure, the first loading and unloading platform is in a horizontal support state, and the second loading and unloading platform is in an inclined state, with a relative height difference of 1.0m-1.2m. Detailed Implementation

[0018] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0019] It should be noted that in the description of this utility model, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1-3 As shown, this utility model proposes a telescopic loading and unloading platform for the logistics field, including a first loading and unloading platform 1, a second loading and unloading platform 2, and a control system. The first loading and unloading platform 1 is located inside the loading and unloading port of the warehouse. When not in use, the second loading and unloading platform 2 is located below the first loading and unloading platform 1. When needed, the second loading and unloading platform 2 can be moved outward to the outside of the loading and unloading port to meet the needs of different vehicles (such as forklifts, tricycles, and urban distribution vehicles), thereby improving utilization. In addition, for existing warehouse platforms, a portion of the platform near the loading and unloading port can be hollowed out, and the first loading and unloading platform 1 can be installed in the hollowed-out area. When not in use, the second loading and unloading platform 2 is located below the first loading and unloading platform 1. For newly built warehouses, a certain amount of space can be reserved in the warehouse to meet the installation requirements of the first loading and unloading platform 1.

[0022] Combination Figure 1 It is known that the first loading and unloading platform 1 includes a first steel frame 1.1, a first support steel plate 1.2 welded to the first steel frame 1.1, and a pair of first hydraulic cylinders 1.3 (or two or more pairs) located below the first support steel plate 1.2. The two first hydraulic cylinders 1.3 are located at the long edge of the first support steel plate 1.2, with their bottoms hinged to the ground outside the platform and their tops hinged to the first support steel plate 1.2. The first hydraulic cylinders 1.3 are installed at an angle. When the piston rod of the first hydraulic cylinder 1.3 is fully extended, the first support steel plate 1.2 is in a horizontal state, and the height of the first support steel plate 1.2 is consistent with the platform (e.g., the support height is 1.4m). In this state, the first support steel plate 1.2 can serve as a temporary platform to meet the loading and unloading needs of large vehicles, tricycles, and urban distribution trucks. In actual use, the piston rod of the first hydraulic cylinder 1.3 can also be retracted, so that the first support steel plate 1.2 is in an inclined state with the left side higher than the right side, such as the left side height being 1.4m and the right side height being 0.7m, with an inclination angle of about 10%, providing a ramp with a certain inclination angle for forklifts to enter and exit the warehouse.

[0023] Combination Figure 1 It is known that two guide rails 3 are set in parallel on the ground below the first loading and unloading platform 1 and outside the warehouse. The guide rails 3 are perpendicular to the outer wall of the warehouse. The two guide rails 3 are located between the two first hydraulic cylinders 1.3. This not only ensures the free adjustment of the first loading and unloading platform 1 in horizontal and tilted states, but also ensures the free movement of the second loading and unloading platform 2, so that the adjustment of the first loading and unloading platform and the second loading and unloading platform does not interfere with each other.

[0024] Combination Figure 1 It is known that the second loading and unloading platform 2 includes a power source 2.1, a traveling frame driven by the power source 2.1 and traveling along the guide rail 3, two pairs of second hydraulic cylinders 2.4 (the two pairs of second hydraulic cylinders 2.4 are spaced apart along the direction of the guide rail 3) and a second support steel plate 2.5. The traveling frame includes a movable crossbeam 2.2a corresponding to each guide rail 3 vertically and a connecting beam 2.2b fixed between the two movable crossbeams 2.2a. A second steel frame 2.3 is welded on the traveling frame. The top of the second steel frame 2.3 has a horizontally set mounting steel plate. The bottom of the second hydraulic cylinder 2.4 is hinged to the mounting steel plate, and its top is hinged to the second support steel plate 2.5. When the extension lengths of the four second hydraulic cylinders 2.4 are consistent, the second support steel plate 2.5 is in a horizontal state. If the second support steel plate 2.5 is located below the first loading and unloading platform 1, the height of the second support steel plate 2.5 can be 0.65m, which facilitates entry and exit. In addition, in actual use, the horizontal support height of the second support steel plate 2.5 can be adjusted by adjusting the extension length of the second hydraulic cylinders 2.4. The height adjustment range is 0.3m-0.8m.

[0025] When the piston rods of the two pairs of second hydraulic cylinders 2.4 extend at different lengths, the second support steel plate 2.5 is tilted. The second support steel plate 2.5 can be adjusted by adjusting the working condition of the second hydraulic cylinders 2.4. For example, if the left side is 0.7m high and the right side is 0m high, the tilt angle is about 10%. At this time, the tilt angle is consistent with the tilt state of the first support steel plate 1.2, which facilitates the entry and exit of forklifts. If the second support steel plate 2.5 is higher on the left and lower on the right, such as the left side being 0.2m-0.4m high and the right side being 0m high, the tilt angle is about 2.5-5%, which facilitates the reversing of tricycles and urban delivery vehicles.

[0026] During actual installation, the width of the second support steel plate 2.5 is less than the spacing between the movable crossbeams 2.2a to ensure the lifting and lowering operation of the second support steel plate 2.5; the length of the second support steel plate 2.5 is greater than the length of the second steel frame 2.3. The maximum horizontal support height of the first loading and unloading platform 1 is higher than the maximum horizontal support height of the second loading and unloading platform 2, ensuring that the second loading and unloading platform 2 can be stored in the space below the first loading and unloading platform 1, thus enabling the storage of the second loading and unloading platform 2. At this time, large transport vehicles can be parked to meet the parking and loading / unloading needs of large transport vehicles at this loading and unloading port.

[0027] In actual installation, two drive wheels are spaced apart on the moving crossbeam 2.2a. Each drive wheel is connected to a power source 2.1. The power source 2.1 is preferably a motor reducer. Each drive wheel corresponds to a set of motor reducers. Multiple motor reducers are used to drive the second loading and unloading platform 2 to move along the guide rail 3.

[0028] Combination Figure 1 It is known that the control system includes a controller, a first tilt sensor installed on the first support steel plate 1.2 and a second tilt sensor installed on the second support steel plate 2.5. The first tilt sensor is used to detect the tilt of the first support steel plate 1.2, and the second tilt sensor is used to detect the tilt of the second support steel plate 2.5. The signal output terminals of the first tilt sensor and the second tilt sensor are connected to the signal input terminal of the controller. The control system also includes an initial position switch and an end position switch installed along the guide rail 3. The signal output terminals of the initial position switch and the end position switch are connected to the signal input terminal of the controller. The position of the second loading and unloading platform 2 can be determined using the two position switches to facilitate the storage and deployment of the second loading and unloading platform 2. Of course, in actual operation, the position of the second loading and unloading platform 2 can also be determined by manual observation.

[0029] It should be noted that the controller in this utility model can be a general-purpose processor, a special-purpose processor, a conventional processor, a digital signal processor (DSP), multiple microprocessors, one or more microprocessors associated with a DSP core, a controller, a microcontroller, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) circuit, any other type of integrated circuit (IC), a state machine, a PLC, etc.

[0030] The following section provides a more detailed explanation of this utility model using a warehouse renovation project as an example: The platform section is hollowed out, with the dimensions of the hollowed-out section being 8m × 4.4m × 1.4m (of course, this can be adjusted according to the actual application during construction) to meet the installation requirements of the first loading and unloading platform 1 and the second loading and unloading platform 2; in addition, for newly built warehouses, a certain amount of installation space can be reserved on one side of the platform. Lay guide rails 3 on the ground. The length of guide rails 3 is more than twice that of the moving crossbeam 2.2a to ensure that the second loading and unloading platform 2 can be completely moved out from under the first loading and unloading platform. Install the first hydraulic cylinder 1.3 in the hollowed-out part and hinge the first hydraulic cylinder 1.3 to the first support steel plate 1.2. After installation, the second loading and unloading platform 2 can be introduced into the guide rails 3 from the outermost end of the guide rails 3. When it needs to be moved, use a power source to drive the second loading and unloading platform to move. The thickness of the first supporting steel plate 1.2 and the second supporting steel plate 2.5 is ≥5mm, and the width of the first supporting steel plate 1.2 is 4.36m, which is slightly smaller than the width of the excavated area, in order to meet the lifting requirements of the first supporting steel plate 1.2. The length of the movable crossbeam 2.2a is approximately 7.5m and less than the length of the excavated portion, ensuring that the second loading and unloading platform 2 is completely housed within the space below the first loading and unloading platform 1; the width of the second support steel plate 2.5 is less than the net spacing between the movable crossbeams 2.2a, ensuring that the second support steel plate 2.5 can freely rise and fall between the two movable crossbeams 2.2a.

[0031] This utility model has multiple states in actual use, as detailed below: For large transport vehicles with high cargo box heights, their rear cargo box needs to be parked directly at the platform. To address this, the first loading / unloading platform 1 can be adjusted to a level position, and the second loading / unloading platform 2 can be moved to the space below the first loading / unloading platform 1 to provide parking space for medium and large vehicles. Both ramps are level; the height of the first loading / unloading platform 1 is approximately 1.4m, and the height of the second loading / unloading platform 2 is 0.65m. See details below. Figure 1 ; For the three-wheeled cart, the second loading / unloading platform 2 can be completely removed from under the first loading / unloading platform 1. Adjust the second support steel plate 2.5 of the second loading / unloading platform 2 so that the left side is higher than the right, with the left side height approximately 0.2-0.4m and the tilt angle approximately 2.5-5%. Then, back the three-wheeled cart onto the second loading / unloading platform 2. Next, adjust the support of the first loading / unloading platform 1 to a horizontal position, with a height of 0.3m-0.8m (adjusted according to the cart height). The height of the descending ramp is approximately 1.4m, with a relative height difference of 0.6m-1.1m. See details... Figure 4 ; When a forklift needs to pass through, first completely remove the second loading / unloading platform 2, then adjust it so that its left side is 0.7m high and its right side is 0m high, so that the second support plate 2.5 is tilted with the left side higher than the right side; adjust the first loading / unloading platform 1 so that its left side is 1.4m high and its right side is 0.7m high, and the tilt angles of the first support plate 1.2 and the second support plate 2.5 are the same, providing a continuous inclined ramp for the forklift. See details. Figure 5 ; For urban delivery vehicles, the height of their cargo compartments is slightly lower than the platform. When an urban delivery vehicle stops, first completely remove the second loading / unloading platform 2, then adjust the tilt angle of the second support steel plate 2.5 so that its left side is approximately 0.2-0.4m high and its tilt angle is approximately 2.5-5%. Then, back the urban delivery vehicle onto the second support steel plate 2.5. The first support steel plate 1.2 is in a horizontal position with a support height of 1.4m, which can serve as a temporary platform for convenient loading and unloading of goods. See details... Figure 6 .

[0032] Finally, it should be emphasized that the above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A telescopic loading and unloading platform for use in the logistics field, characterized in that: It includes a first loading and unloading platform, a second loading and unloading platform, and a control system. The first loading and unloading platform is a telescopic structure, which includes a first steel frame, a first support steel plate welded to the first steel frame, and at least a pair of first hydraulic cylinders disposed below the first support steel plate. One end of the first support steel plate is hinged to the top side edge of the platform, the bottom of the first hydraulic cylinder is hinged to the ground outside the platform, and its top is hinged to the first support steel plate. Two guide rails are arranged in parallel on the ground below the first loading and unloading platform and outside the warehouse, and the two guide rails are located between the first hydraulic cylinders; the second loading and unloading platform is a mobile structure, which includes a power source, a walking frame driven by the power source and moving along the guide rails, at least two pairs of second hydraulic cylinders and a second support steel plate arranged on the walking frame, and the second support steel plate is hinged to the second hydraulic cylinders; The control system includes a controller, a first tilt sensor mounted on the first support steel plate, and a second tilt sensor mounted on the second support steel plate. The signal output terminals of the first tilt sensor and the second tilt sensor are connected to the signal input terminal of the controller.

2. The telescopic loading and unloading platform for the logistics field according to claim 1, characterized in that: The traveling frame includes a movable crossbeam corresponding to each of the guide rails and a connecting beam fixed between the two movable crossbeams; the second loading and unloading platform also includes a second steel frame welded to the connecting beam, the second steel frame having a horizontally arranged mounting steel plate, the bottom of the second hydraulic cylinder being hinged to the mounting steel plate, and its top being hinged to the second support steel plate.

3. The telescopic loading and unloading platform for the logistics field according to claim 2, characterized in that: The first hydraulic cylinder is located on the outside of the moving crossbeam, the width of the second supporting steel plate is less than the spacing between the moving crossbeams, and the length of the second supporting steel plate is greater than the length of the second steel frame.

4. The telescopic loading and unloading platform for the logistics field according to claim 1, characterized in that: The maximum horizontal support height of the first loading and unloading platform is higher than that of the second loading and unloading platform; the width of the first support steel plate is smaller than the width of the platform.

5. The telescopic loading and unloading platform for the logistics field according to claim 1, characterized in that: Each movable crossbeam is provided with a drive wheel at intervals, and each drive wheel is connected to the power source.

6. The telescopic loading and unloading platform for the logistics field according to claim 1, characterized in that: The control system also includes an initial position switch and an end position switch disposed along the guide rail, wherein the signal output terminals of the initial position switch and the end position switch are connected to the signal input terminal of the controller.

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