Take-off and landing mechanism of compressed air type landing unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, and discloses a compressed air type landing unmanned aerial vehicle landing mechanism which comprises an unmanned aerial vehicle body, two supporting foot stools are arranged on the unmanned aerial vehicle body, mounting rings are fixedly mounted on the supporting foot stools, and fixing cylinders are fixedly mounted on the inner walls of the mounting rings. An elastic helium bag is fixedly adhered to the inner wall of the fixed cylinder in a sealing manner, a sealing cylinder is fixedly mounted on the bottom side of the fixed cylinder, the sealing cylinder is communicated with the elastic helium bag, a cylinder chamber is formed in the sealing cylinder, and a piston is movably mounted in the cylinder chamber. The helium in the two elastic helium bags is squeezed into the corresponding sealing cylinders correspondingly, then the two pistons and the connecting rods are synchronously pushed to move downwards, parts of the bottoms of the two supporting foot plates extend out of the two supporting foot stands, and when the two supporting foot stands land to make contact with the ground, the two supporting foot plates have the buffering function, so that the supporting foot plates are prevented from falling off. And the unmanned aerial vehicle body can stably land on the ground.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a compressed air landing unmanned aerial vehicle take-off and landing mechanism. Background Art

[0002] A drone, also known as an unmanned aircraft, is an aircraft that flies in the air through a remote control or autonomous control system. With the development of drone technology, its application range is becoming more and more extensive. For example, photography, which is commonly used by ordinary people, is to equip a rotary-wing drone with a camera, remotely control the drone through a mobile phone, and cruise while taking pictures.

[0003] General UAVs use fixed tripods, which have a relatively simple structure and no buffer mechanism, making it inconvenient for the UAV to take off and land. Therefore, we propose a compressed air landing UAV landing mechanism to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a compressed air landing UAV take-off and landing mechanism to solve the above problems.

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

[0006] A compressed air landing drone landing mechanism comprises a drone body, wherein two supporting tripods are arranged on the drone body, a mounting ring is fixedly mounted on the supporting tripod, a fixing cylinder is fixedly mounted on the inner wall of the mounting ring, an elastic helium bag is fixedly and sealedly bonded to the inner wall of the fixing cylinder, a sealing cylinder is fixedly mounted on the bottom side of the fixing cylinder, the sealing cylinder is communicated with the elastic helium bag, a cylinder chamber is defined in the sealing cylinder, a piston is movably mounted in the cylinder chamber, a bottom cylinder is fixedly mounted on the bottom of the supporting tripod, a bottom groove is defined on the bottom side of the bottom cylinder, a supporting foot plate is movably mounted in the bottom groove, and the supporting foot plate is connected to the piston via an elastic connection mechanism.

[0007] Preferably, a top air inlet is provided at the top of the fixed tube, and a bottom air inlet is provided at the bottom of the fixed tube. When the drone body takes off upward, the outside air presses the two elastic helium bags downward through the two top air inlets, so that the air in the two elastic helium bags is squeezed into the corresponding sealing tubes respectively; when the drone body lands downward, the outside air presses the two elastic helium bags upward through the two bottom air inlets, so that the helium in the two elastic helium bags is squeezed into the corresponding sealing tubes respectively.

[0008] Preferably, the elastic helium bag is overlapped on the top of the sealing tube, and the interior of the elastic helium bag is connected to the cylinder chamber of the sealing tube, so as to facilitate the flow of helium between the helium filled in the elastic helium bag and the cylinder chamber of the sealing tube.

[0009] Preferably, four supporting feet are respectively arranged on the outer surface of the supporting foot plate, and the four supporting feet on the supporting foot plate are distributed in a circular array, and the four supporting feet on the two supporting foot plates are convenient for supporting the drone body.

[0010] Preferably, the elastic connection mechanism includes a connecting rod and a spring, one end of the connecting rod is fixedly installed on the bottom side of the piston, and the other end of the connecting rod is movably extended into the bottom tube and fixedly installed on the top side of the supporting foot plate. When the drone body is placed on the ground, the two supporting foot plates and the two supporting tripods are all against the ground, and at this time, the two groups of springs are subjected to force to produce deformation and compression.

[0011] Preferably, the spring is located in the bottom groove, and the spring is sleeved on one end of the connecting rod to facilitate the spring to be compressed in the bottom groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The compressed air landing UAV landing mechanism is provided with two elastically retractable supporting foot plates on two supporting foot frames of the UAV body. When the UAV body takes off, the outside air presses the two elastic helium bags downward through the two top air inlets, so that the helium in the two elastic helium bags is squeezed into the corresponding sealing tubes respectively, and then the two groups of pistons and connecting rods are synchronously pushed downward, so that the two groups of supporting foot plates generate downward force, and then the UAV body is generated with an upward boost force, which is convenient for the UAV body to take off; when the UAV body starts to land, the outside air presses the two elastic helium bags upward through the two bottom air inlets, so that the helium in the two elastic helium bags is squeezed into the corresponding sealing tubes respectively, and then the two groups of pistons and connecting rods are synchronously pushed downward, so that a part of the bottom of the two supporting foot plates extends out of the two supporting foot frames, and when the two supporting foot frames land and touch the ground, the two supporting foot plates have a buffering function, which is convenient for the UAV body to land stably on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model in a three-dimensional partial cross-section;

[0015] Figure 2 For this utility model Figure 1 The structural diagram of part A in the figure;

[0016] Figure 3 This is a schematic diagram of the structure of a partial cross-section of the UAV body of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of a partial cross-section of the elastic helium bag of the utility model;

[0018] Figure 5It is a structural schematic diagram of a local plane section of the utility model.

[0019] In the figure: 1. UAV body; 2. Support tripod; 3. Mounting ring; 4. Fixing tube; 5. Top air inlet; 6. Bottom air inlet; 7. Elastic helium bag; 8. Sealing tube; 9. Cylinder chamber; 10. Piston; 11. Bottom tube; 12. Bottom groove; 13. Support foot plate; 14. Connecting rod; 15. Spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1-5 A compressed air landing drone landing mechanism includes a drone body 1, two supporting tripods 2 are arranged on the drone body 1, a mounting ring 3 is fixedly installed on the supporting tripod 2, a fixing cylinder 4 is fixedly installed on the inner wall of the mounting ring 3, an elastic helium bag 7 is fixedly sealed and bonded to the inner wall of the fixing cylinder 4, a sealing cylinder 8 is fixedly installed on the bottom side of the fixing cylinder 4, the sealing cylinder 8 is connected to the elastic helium bag 7, a cylinder chamber 9 is opened in the sealing cylinder 8, a piston 10 is movably installed in the cylinder chamber 9, a bottom cylinder 11 is fixedly installed on the bottom of the supporting tripod 2, and the bottom side of the bottom cylinder 11 A bottom groove 12 is provided, in which a supporting foot plate 13 is movably installed. The supporting foot plate 13 is connected to the piston 10 through an elastic connection mechanism. The elastic connection mechanism includes a connecting rod 14 and a spring 15. One end of the connecting rod 14 is fixedly installed on the bottom side of the piston 10, and the other end of the connecting rod 14 is movably extended into the bottom tube 11 and fixedly installed on the top side of the supporting foot plate 13. When the drone body 1 is placed on the ground, the two supporting foot plates 13 and the two supporting tripods 2 are all against the ground. At this time, the two groups of springs 15 are subjected to force to produce deformation and compression.

[0022] Furthermore, a top air inlet 5 is provided at the top of the fixed tube 4, and a bottom air inlet 6 is provided at the bottom of the fixed tube 4. When the drone body 1 takes off upward, the outside air presses the two elastic helium bags 7 downward through the two top air inlets 5, so that the air in the two elastic helium bags 7 is squeezed into the corresponding sealing tubes 8 respectively; when the drone body 1 lands downward, the outside air presses the two elastic helium bags 7 upward through the two bottom air inlets 6, so that the helium in the two elastic helium bags 7 is squeezed into the corresponding sealing tubes 8 respectively.

[0023] Furthermore, the elastic helium bag 7 is overlapped on the top of the sealing tube 8, and the interior of the elastic helium bag 7 is connected to the cylinder chamber 9 of the sealing tube 8, so as to facilitate the flow of helium between the helium filled in the elastic helium bag 7 and the cylinder chamber 9 of the sealing tube 8.

[0024] Furthermore, four supporting feet are respectively arranged on the outer surface of the supporting foot plate 13 , and the four supporting feet on the supporting foot plate 13 are distributed in a circular array. The four supporting feet on the two supporting foot plates 13 are convenient for supporting the drone body 1 .

[0025] Furthermore, the spring 15 is located in the bottom groove 12 , and the spring 15 is sleeved on one end of the connecting rod 14 , so that the spring 15 is compressed in the bottom groove 12 .

[0026] During use: before the drone body 1 takes off, the two supporting tripods 2 on the drone body 1 are attached to the ground. At this time, the two supporting foot plates 13 are also attached to the ground. At this time, the two groups of springs 15 are subjected to force to produce deformation and compression; the drone body 1 is controlled to take off upward by an external remote controller. During the upward take-off process of the drone body 1, the outside air presses the two elastic helium bags 7 downward through the two top air inlets 5, so that the helium in the two elastic helium bags 7 is squeezed into the corresponding sealing tubes 8 respectively, and then the two groups of pistons 10 and the connecting rod 14 are synchronously pushed downward, so that the two groups of supporting foot plates 13 generate a downward force. As the drone body 1 takes off and gradually leaves the ground, the two compressed springs 15 gradually return to their original positions, and the force of the two groups of springs 15 synchronously pushes the two supporting foot plates 13 to move downward, and the two groups of springs 15 are used to push the two supporting foot plates 13 downward. And realize to generate upward thrust to the drone body 1, and facilitate the take-off of the drone body 1; when the drone body 1 starts to land, the drone body 1 starts to descend, and the outside air presses the two elastic helium bags 7 upward through the two bottom air inlets 6, so that the helium in the two elastic helium bags 7 is squeezed into the corresponding sealing tubes 8 respectively, and then the two groups of pistons 10 and connecting rods 14 are synchronously pushed downward, so that a part of the bottom of the two supporting foot plates 13 extends out of the two supporting tripods 2. When the drone body 1 lands and starts to touch the ground, the two extended supporting foot plates 13 first touch the ground. At this time, the two springs 15 are deformed and compressed by the force, so that the two supporting foot plates 13 have a buffering function, until the two supporting foot plates 13 and the two supporting tripods 2 are all against the ground, and then the stable landing of the drone body 1 is completed.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used 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. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compressed air landing UAV take-off and landing mechanism, comprising a UAV body (1), characterized in that: The drone body (1) is provided with two supporting tripods (2), the supporting tripods (2) are fixedly provided with mounting rings (3), the inner wall of the mounting ring (3) is fixedly provided with a fixing cylinder (4), the inner wall of the fixing cylinder (4) is fixedly provided with an elastic helium bag (7) sealed and bonded, the bottom side of the fixing cylinder (4) is fixedly provided with a sealing cylinder (8), the sealing cylinder (8) is communicated with the elastic helium bag (7), a cylinder chamber (9) is provided in the sealing cylinder (8), a piston (10) is movably provided in the cylinder chamber (9), a bottom cylinder (11) is fixedly provided at the bottom of the supporting tripod (2), a bottom groove (12) is provided on the bottom side of the bottom cylinder (11), a supporting foot plate (13) is movably provided in the bottom groove (12), and the supporting foot plate (13) is connected to the piston (10) via an elastic connection mechanism.

2. The air-pressure type landing UAV landing mechanism according to claim 1, characterized in that: A top air inlet (5) is provided at the top end of the fixed tube (4), and a bottom air inlet (6) is provided at the bottom end of the fixed tube (4).

3. The air-pressure type landing UAV landing mechanism according to claim 1, characterized in that: The elastic helium bag (7) is overlapped on the top end of the sealing tube (8), and the interior of the elastic helium bag (7) is connected to the cylinder chamber (9) of the sealing tube (8).

4. The air-pressure type landing UAV landing mechanism according to claim 1, characterized in that: Four supporting feet are respectively arranged on the outer surface of the supporting foot plate (13), and the four supporting feet on the supporting foot plate (13) are distributed in a circular array.

5. The air-pressure type landing UAV landing mechanism according to claim 4, characterized in that: The elastic connection mechanism comprises a connecting rod (14) and a spring (15); one end of the connecting rod (14) is fixedly mounted on the bottom side of the piston (10); the other end of the connecting rod (14) movably extends into the bottom tube (11) and is fixedly mounted on the top side of the supporting foot plate (13).

6. The air-pressure type landing UAV landing mechanism according to claim 5, characterized in that: The spring (15) is located in the bottom groove (12), and the spring (15) is sleeved on one end of the connecting rod (14).

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