Freight cabin loading and unloading trailer with lifting platform

Abstract

The utility model discloses a freight cabin loading and unloading trailer with a lifting platform, and relates to the technical field of unmanned aerial vehicle loading and unloading trailers. The lifting platform is arranged at the top of the frame, and the upper surface of the lifting platform is flush with the upper surface of the frame; the lifting assembly is arranged on the frame and comprises two connecting rods, the middles of the two connecting rods are rotationally connected, and the top of the lifting assembly is connected with the lifting platform; and two ends of the telescopic rod are respectively connected with the two connecting rods. The lifting platform is embedded into the frame through the lifting assembly, so that the upper surface of the trailer is flush, an aircraft can be effectively prevented from being scratched when the trailer enters, the cargo hold is disassembled when the lifting platform ascends to make contact with the bottom face of the cargo hold, the cargo hold stably falls on the lifting platform, and then the lifting platform and the cargo hold slowly descend. After the lifting platform is embedded into the frame, the cargo hold is supported together through the frame and the lifting platform, so that the cargo hold supporting stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle loading and unloading trailers, and in particular to a cargo compartment loading and unloading trailer with a liftable platform. Background Art

[0002] A drone is an unmanned aircraft controlled by a radio remote control device and its own programmable control unit. A cargo drone utilizes drone technology to carry and transport goods. Combining advanced flight technology with intelligent control systems, it enables fast and efficient logistics transportation. These drones typically have a large payload capacity and a long range, adapting to various complex environments and transportation needs.

[0003] At present, the cargo hold of a cargo drone is generally set on the belly of the aircraft and connected to the fuselage through quick-release buckles. When loading and unloading the cargo hold, it is necessary to place a trailer at the bottom of the cargo hold, and then disassemble the cargo hold so that it falls onto the trailer. When the cargo hold is disassembled, since the cargo hold is at a certain height from the ground, it cannot be guaranteed that the cargo hold will fall stably onto the trailer, and the stability of the cargo hold cannot be guaranteed when the trailer is transporting the cargo hold. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art and to propose a trailer with a liftable platform to facilitate the smooth loading, unloading and transportation of the cargo compartment of the UAV.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A cargo compartment loading and unloading trailer with a liftable platform, comprising:

[0007] Frame;

[0008] A lifting platform is provided on the top of the vehicle frame, and the upper surface of the lifting platform is flush with the upper surface of the vehicle frame;

[0009] A lifting assembly is provided on the vehicle frame, the lifting assembly comprises two connecting rods, the middle portions of the two connecting rods are rotatably connected, and the top of the lifting assembly is connected to the lifting platform;

[0010] A telescopic rod, both ends of which are connected to two connecting rods respectively;

[0011] And a manual pump is arranged on the vehicle frame, and the ultra-high pressure manual pump is connected to the telescopic rod to drive the telescopic rod to extend and retract, thereby driving the two connecting rods to rotate.

[0012] Furthermore, the two connecting rods are combined into an X shape, and fixed shafts are provided on the frame and the lifting platform. One end of the two connecting rods is rotatably connected to the two fixed shafts respectively, and the other end of the two connecting rods is fixedly connected to a moving rod. A slide groove is provided on the frame and the lifting platform, and one moving rod is slidably connected to the frame through the slide groove, and the other moving rod is slidably connected to the lifting platform through the slide groove.

[0013] Furthermore, the two connecting rods are fixedly connected to the mounting rods, and the two ends of the telescopic rod are rotatably connected to the two mounting rods respectively.

[0014] Furthermore, the telescopic rod is a hydraulic telescopic rod, the manual pump is an ultra-high pressure manual pump, and the manual pump further includes a pressure rod to pump oil into the telescopic rod.

[0015] Furthermore, a connecting frame is provided in the middle of the vehicle frame, the connecting frame is U-shaped, and the lifting platform can be embedded in the U-shaped groove of the connecting frame.

[0016] Furthermore, placement plates are provided on both sides of the top of the frame, and the placement plates are flush with the lifting platform.

[0017] Furthermore, universal wheels and rollers are respectively provided on both sides of the bottom of the frame.

[0018] Furthermore, a handle is rotatably connected to one side of the frame close to the universal wheel.

[0019] Furthermore, two groups of lifting components are provided, which are respectively arranged on both sides of the bottom of the lifting platform, and a connecting rod is provided between the connecting rods of the two groups of lifting components.

[0020] Furthermore, it also includes a fixing belt, and hooks are provided on both sides of the frame and the lifting platform, and the fixing belt can pass through the hooks.

[0021] The beneficial effects of the utility model are:

[0022] In the present invention, a cargo hold loading and unloading trailer with a liftable platform is lowered to its lowest position by a lifting assembly, so that the liftable platform is embedded in the vehicle frame. The trailer can then be moved to the bottom of the aircraft cargo hold. Since the liftable platform is embedded in the vehicle frame, the upper surface of the trailer is flush, thereby effectively preventing the trailer from scratching the aircraft when loading.

[0023] The lifting platform is driven up by a manual pump. When the lifting platform rises and contacts the bottom surface of the cargo hold, the quick-release buckle connecting the cargo hold and the fuselage is removed, so that the cargo hold falls smoothly onto the lifting platform. Then, the lifting platform and the cargo hold are slowly lowered by a manual pump. When the lifting platform is lowered to the lowest position and embedded in the frame, the cargo hold is supported by the frame and the lifting platform together, thereby improving the stability of the device supporting the cargo hold.

[0024] When transporting the cargo hold, the fixing belt can be passed through the hook, so that the cargo hold can be tied to the loading and unloading trailer through the fixing belt to avoid displacement of the cargo hold during transportation and improve the stability of the cargo hold transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of a cargo compartment loading and unloading trailer with a liftable platform proposed by the present invention;

[0026] Figure 2 This is a structural schematic diagram of a cargo compartment loading and unloading trailer with a liftable platform proposed by the present invention when the lift platform is raised;

[0027] Figure 3 The utility model provides a schematic structural diagram of a connecting rod, a mounting rod and a telescopic rod of a cargo compartment loading and unloading trailer with a liftable platform.

[0028] In the figure: 1 frame, 101 connecting frame, 2 handle, 3 universal wheel, 4 ultra-high pressure manual pump, 5 lifting platform, 6 hook, 7 fixed shaft, 8 roller, 9 lifting assembly, 10 mounting rod, 11 moving rod, 12 telescopic rod. DETAILED DESCRIPTION

[0029] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0030] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0032] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0033] Example 1

[0034] Reference Figure 1-3 A cargo cabin loading and unloading trailer with a liftable platform is used for loading, unloading and transportation of UAV cargo cabins. It is designed to facilitate loading and unloading of the cargo cabin and improve stability during loading, unloading and transportation.

[0035] The cargo compartment loading and unloading trailer with a liftable platform comprises a frame 1, a lift platform 5, a lift assembly 9, a telescopic rod 12 and a manual pump 4;

[0036] A connecting frame 101 is provided in the middle of the frame 1. The connecting frame 101 is U-shaped. The lifting platform 5 is arranged on the top of the frame 1, and the lifting platform 5 can be embedded in the U-shaped groove of the connecting frame 101, so that the upper surface of the lifting platform 5 is flush with the upper surface of the frame 1. The lifting platform 5 can rise, thereby leaving the U-shaped groove of the connecting frame 101, contacting the bottom surface of the cargo hold, and supporting the cargo hold. After the cargo hold is unloaded from the drone, the lifting platform 5 can descend, thereby driving the cargo hold to fall onto the frame 1. At this time, the cargo hold is supported by the frame 1 and the lifting platform 5, thereby improving the stability of the cargo hold support.

[0037] The lifting assembly 9 includes two connecting rods, which are rotatably connected in the middle part so that the two connecting rods are combined into an X shape. A fixed shaft 7 is provided on the frame 1 and the lifting platform 5. One end of the two connecting rods is rotatably connected to the two fixed shafts 7 respectively, and the other end of the two connecting rods is fixedly connected to a moving rod 11. A slide groove is provided on the frame 1 and the lifting platform 5. One moving rod 11 is slidably connected to the frame 1 through the slide groove, and the other moving rod 11 is slidably connected to the lifting platform 5 through the slide groove. When the two connecting rods rotate with each other, one end of the two connecting rods rotates, and the moving rod 11 at the other end will slide inside the slide groove, thereby driving the lifting platform 5 to rise and fall.

[0038] Both connecting rods are fixedly connected to a mounting rod 10, and both ends of the hydraulic telescopic rod 12 are rotatably connected to the two mounting rods 10 respectively. The ultra-high pressure manual pump 4 is arranged on the frame 1 and is located at the bottom of the frame 1. The ultra-high pressure manual pump 4 is connected to the telescopic rod 12. The manual pump 4 also includes a pressure rod and an oil tank. The pressure rod pumps oil into the telescopic rod 12 to make the telescopic rod 12 extend and retract, thereby driving the two connecting rods to rotate. The principle of the ultra-high pressure manual pump 4 is existing technology and will not be repeated here.

[0039] In this embodiment, two groups of lifting components 9 are provided, which are respectively arranged on both sides of the bottom of the lifting platform 5. A connecting rod is provided between the connecting rods of the two groups of lifting components 9. The lifting platform 5 is lifted and supported by the two groups of lifting components 9, thereby improving the stability of the lifting platform 5.

[0040] There are placement plates on both sides of the top of the frame 1, which are flush with the lifting platform 5 to support the cargo hold. Universal wheels 3 and rollers 8 are respectively provided on both sides of the bottom of the frame 1. The universal wheels 3 facilitate the device to turn and move, and the universal wheels 3 drive the locking mechanism to fix the universal wheels 3. This is the existing technology and will not be repeated here. A handle 2 is rotatably connected to one side of the frame 1 close to the universal wheel 3, and the handle 2 facilitates the movement of the push-pull device.

[0041] Example 2

[0042] A cargo hold loading and unloading trailer with a liftable platform. In order to further increase the stability of the device during transportation in the cargo hold, the cargo hold loading and unloading trailer with a liftable platform also includes a fixing belt. Hooks 6 are provided on both sides of the frame 1 and the lifting platform 5. The hooks 6 on both sides correspond to each other. After the cargo hold is placed on the device, the fixing belt can be passed through the hook 6, thereby tying the cargo hold to the device through the fixing belt to avoid displacement during transportation of the cargo hold and improve the stability of transportation of the cargo hold.

[0043] The working principle of the cargo hold loading and unloading trailer with a liftable platform is as follows: First, lower the lifting platform 5 of the loading and unloading trailer to the lowest position, even if the lifting platform 5 is embedded in the U-shaped groove of the frame 1, and confirm that all parts of the loading and unloading trailer do not interfere with the aircraft. Then, start pushing the loading and unloading trailer from the front of the aircraft. Note that before entering, you must first confirm that the cargo hold is located in the middle of the vehicle body to avoid scratching the aircraft when entering the vehicle. After confirming that everything is correct, push the loading and unloading trailer from the front of the aircraft to the rear. When the handle 2 is about to touch the front of the aircraft, stop moving the vehicle and lock the two universal wheels 3.

[0044] Turn the hand wheel on the manual pump 4 clockwise, then unscrew the air bleed tip on the air release valve or the oil tank sealing cap counterclockwise, and use the pressure rod to pressurize the manual pump 4 to pump oil into the telescopic rod 12, so that the telescopic rod 12 extends, thereby driving the two connecting rods to rotate. At this time, one end of the two connecting rods rotates, and the moving rod 11 at the other end slides inside the chute, thereby driving the lifting platform 5 to rise;

[0045] When the lifting platform 5 rises and touches the bottom surface of the cargo hold, stop pressing, remove the quick-release buckle connecting the cargo hold and the fuselage, slowly loosen the handwheel on the manual pump 4 counterclockwise, lower the lifting platform 5 together with the cargo hold, and finally drag the loading and unloading trailer and the cargo hold out from under the aircraft;

[0046] When transporting the cargo hold, the fixing belt can be passed through the hook 6, so that the cargo hold can be tied to the loading and unloading trailer through the fixing belt to avoid displacement of the cargo hold during transportation and improve the stability of the cargo hold during transportation.

[0047] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cargo compartment loading and unloading trailer with a liftable platform, characterized in that: include: Frame (1); A lifting platform (5) is arranged on the top of the vehicle frame (1), and the upper surface of the lifting platform (5) is flush with the upper surface of the vehicle frame (1); A lifting assembly (9) is provided on the vehicle frame (1), the lifting assembly (9) comprises two connecting rods, the middle portions of the two connecting rods are rotatably connected, and the top of the lifting assembly (9) is connected to the lifting platform (5); A telescopic rod (12), both ends of which are connected to two connecting rods respectively; A manual pump (4) is provided on the vehicle frame (1), and the ultra-high pressure manual pump (4) is connected to the telescopic rod (12) to drive the telescopic rod (12) to extend and retract, thereby driving the two connecting rods to rotate; A connecting frame (101) is provided in the middle of the vehicle frame (1), the connecting frame (101) is U-shaped, and the lifting platform (5) can be embedded in the U-shaped groove of the connecting frame (101); Universal wheels (3) and rollers (8) are respectively provided on both sides of the bottom of the vehicle frame (1).

2. The cargo compartment loading and unloading trailer with a liftable platform according to claim 1, characterized in that: The two connecting rods are combined into an X shape, and fixed shafts (7) are provided on the vehicle frame (1) and the lifting platform (5). One end of the two connecting rods is rotatably connected to the two fixed shafts (7) respectively, and the other end of the two connecting rods is fixedly connected to a moving rod (11). Slide grooves are provided on the vehicle frame (1) and the lifting platform (5), and one moving rod (11) is slidably connected to the vehicle frame (1) through the slide groove, and the other moving rod (11) is slidably connected to the lifting platform (5) through the slide groove.

3. The cargo compartment loading and unloading trailer with a liftable platform according to claim 1, characterized in that: The two connecting rods are fixedly connected to a mounting rod (10), and the two ends of the telescopic rod (12) are respectively rotatably connected to the two mounting rods (10).

4. The cargo compartment loading and unloading trailer with a liftable platform according to claim 1, characterized in that: The telescopic rod (12) is a hydraulic telescopic rod, the manual pump (4) is an ultra-high-pressure manual pump, and the manual pump (4) further comprises a pressure rod for pumping oil into the telescopic rod (12).

5. The cargo compartment loading and unloading trailer with a liftable platform according to claim 1, characterized in that: Both sides of the top of the vehicle frame (1) are provided with placement plates, and the placement plates are flush with the lifting platform (5).

6. The cargo compartment loading and unloading trailer with a liftable platform according to claim 1, characterized in that: A handle (2) is rotatably connected to one side of the vehicle frame (1) close to the universal wheel (3).

7. The cargo compartment loading and unloading trailer with a liftable platform according to claim 1, characterized in that: The lifting components (9) are provided in two groups, which are respectively provided on both sides of the bottom of the lifting platform (5), and a connecting rod is provided between the connecting rods of the two groups of lifting components (9).

8. The cargo compartment loading and unloading trailer with a liftable platform according to claim 1, characterized in that: It also includes a fixing belt, and hooks (6) are provided on both sides of the vehicle frame (1) and the lifting platform (5), and the fixing belt can pass through the hooks (6).

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