Automatic cargo carrying device of unmanned aerial vehicle

Abstract

The utility model discloses an automatic cargo carrying device of an unmanned aerial vehicle. Relates to the technical field of unmanned aerial vehicles. Bolts at the joint of the automatic cargo carrying device and the unmanned aerial vehicle are loosened under the influence of shaking in the conveying process, so that the automatic cargo carrying device and the unmanned aerial vehicle are separated and fall onto the ground. The unmanned aerial vehicle comprises an unmanned aerial vehicle body, a cargo carrying part and a fixing part, the cargo carrying part is arranged at the bottom of the unmanned aerial vehicle body, the cargo carrying part is provided with a connecting plate fixedly arranged at the bottom of the unmanned aerial vehicle body, a bolt is arranged in the connecting plate, the bottom of the connecting plate is fixedly connected with a cargo carrying frame, and the fixing part is arranged in the connecting plate. The fixing block is tightly attached to the bolt at the joint of the connecting plate and the unmanned aerial vehicle body through the elastic force of the first spring, the fixing block moves to drive the supporting plate to rotate and be attached to the bolt, the bolt is reinforced through the fixing block and the supporting plate, and the situation that the bolt is loosened due to shaking in the conveying process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to an automatic cargo loading device for unmanned aerial vehicles. Background Technique

[0002] An unmanned aerial vehicle is an unpiloted aircraft controlled by a radio remote control device and a self - contained program control device, or is operated completely or intermittently autonomously by an on - vehicle computer. In fact, an unmanned aerial vehicle is a general term for unmanned aircraft vehicles. It has the advantages of small size, low cost, convenient use, low requirements for the combat environment, and strong battlefield survivability. Some models of unmanned aerial vehicles are equipped with a cargo box to achieve the delivery of materials.

[0003] The existing automatic cargo loading devices for unmanned aerial vehicles are usually fixedly installed at the bottom of the unmanned aerial vehicle by bolts. During the transportation process of the unmanned aerial vehicle, there will be shaking, and the bolts at the connection between the automatic cargo loading device and the unmanned aerial vehicle will become loose under the influence of the shaking, resulting in the situation that the automatic cargo loading device is separated from the unmanned aerial vehicle and falls to the ground. Content of the Utility Model

[0004] The purpose of the utility model is to provide an automatic cargo loading device for unmanned aerial vehicles, so as to solve the problem that the bolts at the connection between the automatic cargo loading device and the unmanned aerial vehicle become loose under the influence of shaking during the transportation process, resulting in the separation of the automatic cargo loading device from the unmanned aerial vehicle and falling to the ground as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an automatic cargo loading device for unmanned aerial vehicles, including a unmanned aerial vehicle main body, a cargo loading part and a fixing part. The cargo loading part is arranged at the bottom of the unmanned aerial vehicle main body. The cargo loading part has a connecting plate fixedly arranged at the bottom of the unmanned aerial vehicle main body. A bolt is arranged inside the connecting plate. The bottom of the connecting plate is fixedly connected with a cargo box. The fixing part is arranged inside the connecting plate. The fixing part has a fixing block slidably connected inside the connecting plate. A first spring is arranged inside the connecting plate. One end of the first spring is in contact with the inner side wall of the connecting plate, and the other end of the first spring is in contact with the fixing block. The bottom of the fixing block is hinged with a connecting rod. The bottom end of the connecting rod is hinged with a support plate. An installation plate is fixedly arranged below the connecting plate, and the installation plate is fixed below the connecting plate by welding. The installation plate is rotatably connected with the support plate.

[0006] By adopting the above technical solution, the elastic force of the first spring makes the fixing block closely fit the bolt at the connection between the connecting plate and the unmanned aerial vehicle main body. The movement of the fixing block will drive the support plate to rotate and fit to the bolt, and the bolt is reinforced by the fixing block and the support plate, reducing the loosening of the bolt under the influence of shaking during the transportation process.

[0007] Preferably, the limiting part is arranged at the bottom of the connecting plate. The limiting part has a limiting block slidably connected to the bottom of the connecting plate. A second spring is arranged at the connection between the connecting plate and the limiting block. One end of the second spring is in contact with the limiting block, and the other end of the second spring is in contact with the inner side wall of the connecting plate.

[0008] By adopting the above technical solution, the fixing block can be limited by the limiting block, avoiding the influence of the fixing block on the installation and disassembly of the bolts inside the connecting plate.

[0009] Preferably, a sliding rod is fixedly arranged in the sliding groove where the connecting plate is slidably connected to the fixing block. The sliding rod is slidably connected to the fixing block, and the sliding rod passes through the hole formed at the center of the first spring.

[0010] By adopting the above technical solution, the fixing block can be limited by the sliding rod, ensuring the stability of the fixing block during movement. Moreover, the sliding rod can limit the first spring, avoiding the situation of deformation and dislocation of the first spring.

[0011] Preferably, a threaded ring is fixedly arranged at the bottom of the connecting plate, and the threaded ring is bolted to the bolt inside the connecting plate.

[0012] By adopting the above technical solution, the bolt can be assisted by the threaded ring, facilitating the staff to install or disassemble the bolt.

[0013] Preferably, four groups of fixing blocks are provided, and pulling protrusions are arranged at the bottoms of the four groups of fixing blocks.

[0014] By adopting the above technical solution, the staff can quickly pull the fixing block through the pulling protrusion, which is convenient and fast.

[0015] Preferably, a guiding rod is fixedly arranged in the sliding groove where the limiting block is slidably connected to the connecting plate. The guiding rod is slidably connected to the limiting block, and the guiding rod passes through the hole at the center of the second spring.

[0016] By adopting the above technical solution, the limiting block is limited by the guiding rod, avoiding the situation that the limiting block is separated from the connecting plate. Moreover, the guiding rod can limit the second spring, avoiding the situation of deformation and dislocation of the second spring.

[0017] Preferably, the limiting block is made of stainless steel, and two groups of limiting protrusions are arranged on one side of the limiting block where the fixing block is located.

[0018] By adopting the above technical solution, the fixing blocks at different positions can be fixed by the two groups of limiting protrusions, facilitating the staff to limit the fixing block according to actual needs.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] (1) By the elastic force of the first spring, the fixing block is closely attached to the bolt at the connection between the connecting plate and the UAV body. The movement of the fixing block will drive the support plate to rotate and fit to the bolt, and the bolt is reinforced by the fixing block and the support plate, reducing the loosening of the bolt affected by shaking during transportation.

[0021] (2) By setting the limiting block and the second spring to form a limiting part, the limiting block can fix the fixing blocks at different positions, avoiding the influence of the fixing blocks on the installation or disassembly of the bolt. Description of the Drawings

[0022] Figure 1 is a schematic side view of the present utility model;

[0023] Figure 2 is the present utility model Figure 1 an enlarged schematic view of part A;

[0024] Figure 3 is a schematic bottom view of the present utility model;

[0025] Figure 4 is the present utility model Figure 3 an enlarged schematic view of part B.

[0026] In the figure: 1, UAV body; 2, cargo part; 201, cargo frame; 202, connecting plate; 3, fixing part; 301, fixing block; 302, first spring; 303, sliding rod; 304, mounting plate; 305, support plate; 306, connecting rod; 307, threaded ring; 4, limiting part; 401, limiting block; 402, second spring; 403, guide rod. Detailed Embodiment

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] The following is a further detailed description of the present utility model in conjunction with the attached Figures 1-4 drawings.

[0029] Embodiment 1

[0030] Please refer to Figures 1-4, this embodiment provides a technical solution: an automatic cargo-carrying device for a drone, including a drone main body 1, a cargo-carrying part 2, and a fixing part 3. Support legs are fixedly connected to both sides of the bottom of the drone main body 1, and the drone main body 1 can be supported by the support legs. The cargo-carrying part 2 is arranged at the bottom of the drone main body 1. The cargo-carrying part 2 has a connecting plate 202 fixedly arranged at the bottom of the drone main body 1. Bolts are arranged inside the connecting plate 202. The connecting plate 202 is fixedly installed at the bottom of the shell of the drone main body 1 by bolts, which is convenient for the staff to disassemble and install. The bottom of the connecting plate 202 is fixedly connected to a cargo box 201. The connecting plate 202 is connected to the cargo box 201 by welding. The inside of the cargo box 201 is a hollow structure, and materials can be stored through the cargo box 201. The fixing part 3 is arranged inside the connecting plate 202. The fixing part 3 has a fixing block 301 slidably connected inside the connecting plate 202. One end of the fixing block 301 is a curved surface shape, and the curved surface side of the fixing block 301 is attached to the bolt inside the connecting plate 202. A first spring 302 is arranged inside the connecting plate 202. The first spring 302 is in a slightly compressed deformation state. One end of the first spring 302 is attached to the inner side wall of the connecting plate 202, and the other end of the first spring 302 is attached to the fixing block 301. The elastic force of the first spring 302 makes the fixing block 301 closely attached to the bolt inside the connecting plate 202, ensuring the fixing effect of the fixing block 301 on the bolt inside the connecting plate 202 and preventing the bolt from rotating due to external shaking. A connecting rod 306 is hinged to the bottom of the fixing block 301. The movement of the fixing block 301 will drive the connecting rod 306 to rotate. The bottom end of the connecting rod 306 is hinged to a support plate 305. The rotation of the connecting rod 306 can drive the support plate 305 to rotate. An installation plate 304 is fixedly arranged below the connecting plate 202. The installation plate 304 is fixed below the connecting plate 202 by welding to prevent the installation plate 304 from separating from the connecting plate 202. The installation plate 304 is rotatably connected to the support plate 305. The support plate 305 is limited by the installation plate 304 to ensure the stability during the rotation of the support plate 305. And the bottom of the bolt inside the connecting plate 202 is supported by the support plate 305 to further limit and fix the thread. A sliding rod 303 is fixedly arranged in the sliding groove where the connecting plate 202 is slidably connected to the fixing block 301. The sliding rod 303 is slidably connected to the fixing block 301 and passes through the hole formed in the center of the first spring 302. The fixing block 301 can be limited by the sliding rod 303 to ensure the stability during the movement of the fixing block 301. And the first spring 302 can be limited by the sliding rod 303 to prevent the deformation and dislocation of the first spring 302. A threaded ring 307 is fixedly arranged at the bottom of the connecting plate 202. The threaded ring 307 is bolt-connected to the bolt inside the connecting plate 202. The bolt is assisted by the threaded ring 307, which is convenient for the staff to install or disassemble the bolt.There are four sets of fixed blocks 301 in total, and pulling protrusions are provided at the bottoms of the four sets of fixed blocks 301. Workers can quickly pull the fixed blocks 301 through the pulling protrusions, which is convenient and fast.

[0031] Embodiment 2

[0032] Please refer to Figures 1-4 , a limiting part 4, which is arranged at the bottom of the connecting plate 202. The limiting part 4 has a limiting block 401 slidably connected to the bottom of the connecting plate 202. A limiting protrusion is arranged on one side of the limiting block 401 where it is located at the fixed block 301. The fixed block 301 can be limited through the limiting protrusion, so as to avoid the influence of the fixed block 301 on the installation and disassembly of the bolts inside the connecting plate 202. A second spring 402 is arranged at the connection between the connecting plate 202 and the limiting block 401. The second spring 402 is in a slightly compressed new deformation state. One end of the second spring 402 is in contact with the limiting block 401, and the other end of the second spring 402 is in contact with the inner side wall of the connecting plate 202. By arranging the second spring 402 to push the limiting protrusion of the limiting block 401, it can be attached to the fixed block 301 to ensure the limiting effect of the limiting block 401. A guide rod 403 is fixed in the sliding groove where the limiting block 401 is slidably connected to the connecting plate 202, and the guide rod 403 is slidably connected to the limiting block 401, and the guide rod 403 passes through the hole in the center of the second spring 402. The limiting block 401 is limited through the guide rod 403 to avoid the situation where the limiting block 401 is separated from the connecting plate 202, and the guide rod 403 can limit the second spring 402 to avoid the situation of deformation and dislocation of the second spring 402. The limiting block 401 is made of stainless steel material, and two sets of limiting protrusions are arranged on one side of the limiting block 401 where it is located at the fixed block 301. Different positions of the fixed block 301 can be fixed through the two sets of limiting protrusions, which is convenient for workers to limit the fixed block 301 according to actual needs.

[0033] Working principle: First, when the bolts inside the connecting plate 202 need to be disassembled, manually operate the limiting block 401, and the limiting block 401 moves and separates from the fixed block 301. The limiting block 401 causes the second spring 402 to deform. While keeping pulling the limiting block 401, pull the fixed block 301. The movement of the fixed block 301 causes the first spring 302 to deform. The fixed block 301 moves and separates from the bolts, thus releasing the fixation of the bolts. Since the fixed block 301 is hinged to the connecting rod 306, and the connecting rod 306 is hinged to the support plate 305, the movement of the fixed block 301 will drive the support plate 305 to rotate. The movement of the support plate 305 separates from the bolts. When the pulling protrusion of the fixed block 301 moves to one side of the limiting block 401, release the limiting block 401, and the second spring 402 will restore deformation and push the limiting block 401 back to its initial position;

[0034] Secondly, loosen the fixing block 301. The first spring 302 will recover its deformation and push the fixing block 301 to move. The movement of the fixing block 301 will fit to the limiting block 401. The limiting block 401 limits the fixing block 301 to prevent the fixing block 301 from fitting to the bolt. Then the bolt can be disassembled. When the bolt needs to be installed, rotate the bolt into the connecting plate 202 through the threaded ring 307. Pull the limiting block 401 again to release the fixation of the fixing block 301. The first spring 302 will push the fixing block 301 to fit to the bolt. And the movement of the fixing block 301 will drive the support plate 305 to rotate and fit to the bolt under the action of the connecting rod 306. The bolt is reinforced by the fixing block 301 and the support plate 305, reducing the occurrence of loosening of the bolt affected by vibration.

[0035] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An automatic cargo loading device for unmanned aerial vehicles, characterized in that ,include: UAV body (1); A cargo carrying part (2), the cargo carrying part (2) being arranged at the bottom of the drone body (1), the cargo carrying part (2) having a connecting plate (202) fixedly arranged at the bottom of the drone body (1), the connecting plate (202) having bolts arranged inside, and the bottom of the connecting plate (202) being fixedly connected to a cargo frame (201); A fixing part (3), the fixing part (3) is arranged inside the connecting plate (202), the fixing part (3) has a fixing block (301) slidably connected to the inside of the connecting plate (202), a first spring (302) is arranged inside the connecting plate (202), one end of the first spring (302) is in contact with the inner wall of the connecting plate (202), and the other end of the first spring (302) is in contact with the fixing block (301), a connecting rod (306) is hinged at the bottom of the fixing block (301), a supporting plate (305) is hinged at the bottom of the connecting rod (306), a mounting plate (304) is fixed below the connecting plate (202), the mounting plate (304) is fixed below the connecting plate (202) by welding, and the mounting plate (304) is rotatably connected to the supporting plate (305).

2. The automatic cargo loading device for unmanned aerial vehicles according to claim 1, characterized in that: The automatic cargo loading device of the unmanned aerial vehicle further comprises: A limiting portion (4) is arranged at the bottom of the connecting plate (202), the limiting portion (4) has a limiting block (401) slidably connected to the bottom of the connecting plate (202), a second spring (402) is arranged at the connection between the connecting plate (202) and the limiting block (401), one end of the second spring (402) is in contact with the limiting block (401), and the other end of the second spring (402) is in contact with the inner wall of the connecting plate (202).

3. The automatic cargo loading device for unmanned aerial vehicles according to claim 1, characterized in that: A sliding rod (303) is fixedly arranged in the sliding groove in which the connecting plate (202) and the fixed block (301) are slidably connected, and the sliding rod (303) is slidably connected to the fixed block (301), and the sliding rod (303) passes through a hole formed in the center of the first spring (302).

4. The automatic cargo loading device for unmanned aerial vehicles according to claim 1, characterized in that: A threaded ring (307) is fixedly provided at the bottom of the connecting plate (202), and the threaded ring (307) is bolted to bolts inside the connecting plate (202).

5. The automatic cargo loading device for unmanned aerial vehicle according to claim 1, characterized in that: There are four groups of fixing blocks (301) in total, and the bottoms of the four groups of fixing blocks (301) are all provided with pulling protrusions.

6. The automatic cargo loading device for unmanned aerial vehicles according to claim 2, characterized in that: A guide rod (403) is fixedly arranged in a sliding groove in which the limit block (401) and the connecting plate (202) are slidably connected, and the guide rod (403) is slidably connected to the limit block (401), and the guide rod (403) passes through a hole in the center of the second spring (402).

7. The automatic cargo loading device for unmanned aerial vehicles according to claim 2, characterized in that: The limiting block (401) is made of stainless steel, and the limiting block (401) is located on one side of the fixing block (301) and is provided with two groups of limiting protrusions.

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