Lift truck for load reloading of unmanned aerial vehicle

Abstract

A lift truck for load reloading of an unmanned aerial vehicle comprises a seat, at least one lifting support and a control system, the lifting supports are arranged on the seat, and the control system is connected with the lifting supports and controls the lifting supports to ascend and descend. At least one of the lifting supports can move horizontally relative to the saddle. Compared with the prior art, the technical scheme provided by the utility model has the advantages of simple structure, convenience in control and operation, capability of flexibly adjusting the angle and widely adapting to loads with different sizes, high working efficiency and low material cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lift truck, especially a lift truck for unmanned aerial vehicle load reloading. BACKGROUND

[0002] With the development of unmanned aerial vehicle technology and the continuous expansion of unmanned aerial vehicle application field, the unmanned aerial vehicle load reloading demand following it also increasingly develops towards low cost and high efficiency, and the lift truck as the key equipment in the unmanned aerial vehicle load reloading process plays an important role in the connection, transportation, hanging of unmanned aerial vehicle load and the like. However, the existing lift truck either cannot flexibly adjust the installation or receiving angle of load or cannot adapt to different sizes of different loads, so it cannot efficiently complete the task.

[0003] For example, the authorized announcement number for CN218344705U, entitled a kind of medicine residue loading truck telescopic transport frame of Chinese utility model patent, discloses that the bottom plate (4) is provided with mobile wheel (5) in four corners below, the control panel (1) is installed in one side above the bottom plate (4), the telescopic frame (3) is vertically arranged in four corners above the bottom plate (4), the telescopic frame (3) contains support head (6), telescopic rod (7) and air cylinder (8), the support head (6) is arranged at the top of telescopic rod (7), is driven by air cylinder (8) to carry out synchronous lifting, the control panel (1) is communicated with four telescopic frames (3) with pneumatic circuit (2), the pneumatic circuit (2) is connected with air compressor (11). The technical scheme of the utility model, the distance between the telescopic frame (3) cannot be adjusted to adapt to different sizes of load. For example, the authorized announcement number for CN207827811U, entitled a kind of self-propelled elevator car of Chinese utility model patent, discloses that the bottom plate (9) is provided with the chassis (9) of wheel (1), the upper portion of the chassis (9) is connected with the operation platform (15) through the lift device (14) of hydraulic cylinder that can be lifted;The chassis (9) is provided with a drive system for providing power for the wheel (1) and the lift device (14) of hydraulic cylinder;The operation platform (15) is provided with a control panel (13) and a brake pedal (20);The control panel (3) is used to control the forward and backward movement of the elevator car and the lifting of the lift device (14) of hydraulic cylinder;The brake pedal (20) is used to realize the brake operation of the elevator car. The technical scheme of the utility model, the distance of the lift device (14) of hydraulic cylinder still cannot be adjusted to adapt to different sizes of load, and the setting of the operation platform (15) also hinders the adjustment of angle. For example, the authorized announcement number for CN205419659U, entitled a kind of automobile lifting machine of Chinese utility model patent, discloses that the base, control panel, guide rail, lifting support, sliding block, hydraulic cylinder lifting platform and air cylinder are included, the control panel is installed on the base;The base is provided with guide rail;The guide rail is provided with lifting support;One end of the lifting support is fixed with the guide rail;The other end of the lifting support is provided with sliding block, and the sliding block is in the guide rail;One end of the sliding block is provided with hydraulic cylinder;One end of the hydraulic cylinder is provided with hydraulic valve;One end of the hydraulic valve is provided with hydraulic pump;The lifting platform is installed on the lifting support;The lifting platform is provided with tire clamping groove;One side of the lifting platform is provided with slope;The base is provided with air cylinder at four corners;One end of the air cylinder is provided with air pump. The technical scheme of the utility model, the lifting platform 9 is lifted or pulled back by the cooperation of air cylinder 12 and lifting support 4, and in the use process, the installation or receiving angle of load cannot be adjusted flexibly, and different sizes of load cannot be adapted, the function of air cylinder 12 and lifting support 4 is similar to the structure, and the lifting support 4 acts through hydraulic cylinder 6, which is not used to adjust the distance between air cylinder 12, therefore, the simple structure and high efficiency requirements cannot be met.

[0004] While some lifting vehicle products can barely meet the needs of adjusting angles and adapting to different sizes, their structures are complex, their operations are cumbersome, and their work efficiency is significantly low. For example, Chinese utility model patent with authorization announcement number CN219705060U, entitled "Tooling for Assembling the Tail Structure of an Aircraft", discloses: a vehicle body (1), with a traveling wheel (2) installed at the bottom of the vehicle body (1), a control panel (3) installed on the surface of the vehicle body (1), a lifting mechanism (4) fixedly installed on the top of the vehicle body (1), an adjustment mechanism (5) installed on the top of the lifting mechanism (4), a fixing mechanism (6) installed on the surface of the adjustment mechanism (5), and an assembly (7) fixed on the top of the fixing mechanism (6); the lifting mechanism (4) includes a fixed seat (41), a first lifting rod (42), a second lifting rod (43), an electric hydraulic cylinder (44), and a support frame (45), and the fixed seat (41) is fixedly installed on the top of the vehicle body (1). The adjustment mechanism (5) includes a sliding seat (51) fixedly installed on the top of the support frame (45). A bidirectional lead screw (52) is rotatably installed inside the sliding seat (51). A drive motor (53) is fixedly installed on one side of the sliding seat (51). The output end of the drive motor (53) is fixedly connected to one end of the bidirectional lead screw (52). Two sliders (54) are threadedly connected to the surface of the bidirectional lead screw (52). The technical solution of this utility model adapts to different load sizes by using the sliding seat (51) of the adjustment mechanism (5) located on the top of the lifting mechanism (4), and adjusts the angle by using the fixing frame (61) of the fixing mechanism (6) installed on the surface of the adjustment mechanism (5). However, the overall structure is complex, with a large number of parts and multiple mechanical transmission levels, resulting in low working efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a lifting vehicle for UAV payload changing that is simple in structure, easy to control and operate, can flexibly adjust the angle and widely adapt to loads of different sizes, has high working efficiency and low material cost.

[0006] The main technical solution adopted by this utility model is as follows:

[0007] A lifting vehicle for changing payloads of unmanned aerial vehicles includes a seat, at least one lifting bracket, and a control system. The lifting bracket is mounted on the seat, and the control system is connected to the lifting bracket and controls the lifting bracket to perform lifting and lowering actions. At least one of the lifting brackets is capable of translational movement relative to the seat.

[0008] The seat is provided with a slide rail, and at least one of the lifting brackets moves relative to the seat via the slide rail.

[0009] The lifting support is arranged close to the outer edge of the seat and extends upward.

[0010] The lifting support comprises a power cylinder and a gasket arranged at the bottom end of the power cylinder.

[0011] The power cylinder comprises a cylinder barrel and a piston rod extending into the cylinder barrel, and the top end of the piston rod is provided with a fine adjustment pin, and a plurality of blind holes are arranged on the fine adjustment pin.

[0012] A nylon joint is arranged on the fine adjustment pin.

[0013] A length-replaceable adapter rod is further arranged between the top end of the piston rod and the fine adjustment pin.

[0014] The seat comprises a seat plate and a wheel arranged at the bottom surface of the seat plate, and the wheel is a height-adjustable Foma wheel.

[0015] The control system comprises a control box arranged on the seat, and the control box is provided with an operation panel.

[0016] The control system can individually control one lifting support to perform lifting action, or the control system can simultaneously control at least two lifting supports to perform lifting action.

[0017] According to the technical scheme, at least one of the lifting supports can perform a translational motion relative to the seat, so as to adjust the distance between the lifting supports to adapt to loads of different sizes, and the applicability is more extensive; the lifting supports perform translational motion through the slide rails arranged on the seat, the structure is simple, a multi-level mechanical transmission structure does not need to be arranged, and the material cost is obviously reduced; the lifting supports are arranged at the outer edge of the seat, so that the stress points are dispersed on the outer side of the seat, and the stability during load connection is improved; the fine adjustment pin is arranged to play a fine adjustment role, and the screw hole interface of the unmanned aerial vehicle can be quickly aligned; the nylon joint is arranged to prevent damage to the unmanned aerial vehicle or the load; the adapter rod is replaceable, so that the load of different heights can be replaced, and the applicability of the lifting vehicle is further improved; the control system can individually or simultaneously control the lifting action of the lifting supports, and plays an important role in adjusting the angle during installation or load connection. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a top side view of the lifting vehicle of the application.

[0019] Figure 2 It is a bottom side view of the lifting vehicle of the application.

[0020] Figure 3 It is a top view of the lifting vehicle of the application.

[0021] Figure 4 It is a schematic view of the lift truck from the bottom.

[0022] Figure 5 It is a schematic view of the assembly structure of the power cylinder, gasket, fine adjustment needle and nylon joint.

[0023] Figure 6 It is Figure 5 It is a schematic view of the exploded structure.

[0024] Figure 7 It is Figure 5 It is a schematic view of the exploded structure after adding the adapter rod.

[0025] 1 seat, 10 slide rail, 11 board, 12 wheels, 2 lift bracket, 21 power cylinder, 211 cylinder, 212 piston rod, 22 gasket, 220 let go of the hole, 31 control box, 4 fine adjustment needle, 40 blind hole, 41 nylon joint, 5 adapter rod. DETAILED DESCRIPTION

[0026] The utility model will be further described below in combination with the drawings:

[0027] Referring to Figures 1-4 As shown in the figure, a lift truck for unmanned aerial vehicle load replacement, comprising a seat 1, at least one lift bracket 2 and a control system, the lift bracket 2 is installed on the seat 1, the control system is connected with the lift bracket 2 and controls the lift bracket 2 to carry out the lifting action, at least one of the lift bracket 2 can make translational motion relative to the seat 1. In this application, at least one of the lift bracket can make translational motion relative to the seat, so as to adjust the distance between the lift brackets to adapt to different sizes of load, and the applicability of the product is more extensive. Preferably, the number of lift brackets 2 is four, wherein two of the lift brackets 2 are fixedly arranged on the seat 1, and the other two of the lift brackets 2 can make translational motion relative to the seat 1.

[0028] Referring to Figures 1-4 As shown in the figure, the seat 1 is provided with a slide rail 10, and at least one of the lift brackets 2 makes translational motion relative to the seat 1 through the slide rail 10. In this application, the lift bracket makes translational motion through the slide rail arranged on the seat, which is simple in structure, and can complete the distance adjustment between the lift brackets to adapt to different sizes of load without setting a multi-level mechanical transmission structure, so the operation is convenient, and the material cost is also obviously reduced. Preferably, the extension direction of the slide rail 10 on the seat 1 includes but is not limited to extending in a straight line or a curve in one direction or at least two different directions.

[0029] Referring to Figures 1-4As shown, the lifting bracket 2 is positioned near the outer edge of the seat 1 and extends upwards. In this application, the lifting bracket is located at the outer edge of the seat, which distributes the stress points on the outside of the seat, making it less likely for the center of gravity to shift and cause the risk of overturning. This improves the stability when connecting loads and makes it suitable for connecting loads with high stability requirements.

[0030] See Figure 1 , 5 As shown in Figure 7, the lifting support 2 includes a power cylinder 21 and a gasket 22, with the gasket 22 located at the bottom end of the power cylinder 21. Preferably, the gasket 22 has a clearance hole 220 to accommodate the protrusion at the bottom end of the power cylinder 21. This design further simplifies the problems of low standardization and poor adaptability caused by the irregular shape of the bottom end of the lifting support. Moreover, the use of the gasket provides wear protection for the lifting support, especially during translational movements. Preferably, the power cylinder 21 is an electric cylinder, and the control system is connected to the motor of the electric cylinder. Preferably, the gasket 22 also has a positioning post extending downward into the slide rail 10 to guide and limit movement.

[0031] See Figures 5-7 As shown, the power cylinder 21 includes a cylinder barrel 211 and a piston rod 212 extending into the cylinder barrel 211. A fine-tuning pin 4 is provided at the top of the piston rod 212, and multiple blind holes 40 are formed on the fine-tuning pin 4. In this application, multiple insertion positions are formed by the multiple blind holes on the fine-tuning pin. When the position of the top of the lifting bracket approaches the screw hole interface of the payload installed on the UAV, the position can be finely adjusted by the fine-tuning pin, facilitating quick alignment with the screw hole interface.

[0032] See Figures 5-7 As shown, the fine-tuning pin 4 is equipped with a nylon connector 41. In this application, the use of a nylon connector not only allows it to withstand high pressure, but also prevents damage to the drone or payload.

[0033] See Figure 7 As shown, a length-replaceable adapter rod 5 is also provided between the top of the piston rod 212 and the fine-tuning pin 4. In this application, the use of a replaceable adapter rod allows for the adaptation to loads at different heights by changing the adapter rod of different lengths, such as loads at different heights in the front and rear compartments of a drone, to perform load changing operations, further improving the adaptability of the product.

[0034] See Figures 1-4As shown, the vehicle seat 1 comprises a vehicle plate 11 and wheels 12 arranged at the bottom surface of the vehicle plate 11, and the wheels 12 are height-adjustable Foma wheels. In the present application, the Foma wheels are used to further improve the stability of the vehicle seat, and can be connected to loads with high stability requirements. In the present application, preferably, the slide rail is arranged through the vehicle plate and extends along at least part of the edge of the vehicle plate. Preferably, the slide rail 10 is arranged to give way to the arrangement position of the Foma wheels.

[0035] As shown, Figures 1-3 As shown, the control system comprises a control box 31 arranged on the vehicle seat 1, and the control box 31 is provided with an operation panel. In the present application, the operation panel comprises a display and buttons.

[0036] As shown, Figures 1-3 As shown, the control system can control one lifting support 2 to perform lifting action individually, or the control system can control at least two lifting supports 2 to perform lifting action simultaneously. In the present application, the control system controls the lifting supports to perform lifting action individually, which can adjust the angle of the load during installation or receiving through the lifting action of a single lifting support, and has higher flexibility; the control system controls at least two lifting supports to perform lifting action simultaneously, which is convenient for stably jacking up or lowering the load through synchronous action during connection. Preferably, the synchronous lifting error rate of the control system when controlling at least two lifting supports 2 to perform lifting action simultaneously is within ±2mm.

[0037] Although the specific embodiments of the present application have been described above, those skilled in the art can make changes to it without departing from the spirit and principles of the present application, and the protection scope of the present application is defined by the claims and their equivalents.

Claims

1. An unmanned aerial vehicle payload changing lift vehicle, comprising a vehicle seat, at least one lifting support installed on the vehicle seat, and a control system connected with the lifting support and controlling the lifting support to perform lifting action, characterized in that: At least one of the lifting supports is capable of moving horizontally relative to the seat.

2. The unmanned aerial vehicle payload changeout lift vehicle of claim 1, wherein: The seat is provided with a sliding rail, and at least one of the lifting supports moves horizontally relative to the seat through the sliding rail.

3. The unmanned aerial vehicle payload changeout lift vehicle of claim 1, wherein: The lifting supports are arranged close to the outer edge of the seat and extend upward.

4. The unmanned aerial vehicle payload changeout lift vehicle of claim 1, wherein: The lifting supports comprise power cylinders and spacers, and the spacers are arranged at the bottom end of the power cylinders.

5. The UAV payload swap lift of claim 4, wherein: The power cylinders comprise a cylinder barrel and a piston rod extending into the cylinder barrel, and the top end of the piston rod is provided with a fine adjustment needle, and a plurality of blind holes are arranged on the fine adjustment needle.

6. The UAV payload swap lift of claim 5, wherein: A nylon joint is arranged on the fine adjustment needle.

7. The unmanned aerial vehicle payload changeout lift vehicle of claim 5, wherein: A length-replaceable adapter rod is further arranged between the top end of the piston rod and the fine adjustment needle.

8. The unmanned aerial vehicle payload changeout lift vehicle of claim 1, wherein: The seat comprises a seat plate and wheels arranged on the bottom surface of the seat plate, and the wheels are adjustable height Fomawheels.

9. The unmanned aerial vehicle payload changeout lift vehicle of claim 1, wherein: The control system comprises a control box arranged on the seat, and the control box is provided with an operation panel.

10. The unmanned aerial vehicle payload changeout lift vehicle of any of claims 1-9, wherein: The control system can control one of the lifting supports to perform lifting action, or the control system can simultaneously control at least two of the lifting supports to perform lifting action.

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