Rack of multi-rotor unmanned aerial vehicle

Abstract

The utility model relates to the technical field of multi-rotor unmanned aerial vehicles, and discloses a multi-rotor unmanned aerial vehicle frame, which comprises an unmanned aerial vehicle main body, a landing buffer mechanism is arranged at the bottom of the unmanned aerial vehicle main body, the landing buffer mechanism comprises a positioning cylinder, a first spring is fixedly mounted at the top of an inner cavity of the positioning cylinder, and a second spring is fixedly mounted at the bottom of the inner cavity of the positioning cylinder. A positioning plate is fixedly mounted at the bottom of the first spring, damping rods are fixedly mounted on the left side and the right side of the top of the positioning plate, and the damping rods are fixedly connected with the positioning cylinder. The landing buffering mechanism is arranged, when the supporting base makes contact with the ground, the first spring can buffer impact force, the damping rod can prevent the first spring from rebounding repeatedly, the propeller mechanism is arranged, an inserting rod can be separated from an inserting block by pulling a pull ring, and therefore a propeller body can be conveniently detached, the pull ring is loosened, and the propeller body can be conveniently detached. And the second spring rebounds to drive the insertion rod to be inserted into the insertion block, so that the propeller main body is mounted.

Description

Technical Field

[0001] This utility model relates to the field of multi-rotor unmanned aerial vehicle (UAV) technology, and in particular to a frame for a multi-rotor UAV. Background Technology

[0002] Drones are short for unmanned aerial vehicles, which are vehicles that do not carry operators, use aerodynamics to generate lift, and can fly autonomously or remotely. Generally speaking, they are divided into three categories: fixed-wing drones, unmanned helicopters, and multi-rotor drones. Multi-rotor drones are a special type of unmanned helicopter with three or more rotor shafts. Traditional multi-rotor drones are inconvenient to disassemble and repair the propellers, and are not easy to cushion the impact when landing, making them easily damaged.

[0003] Therefore, those skilled in the art have provided a frame for a multi-rotor unmanned aerial vehicle to address the problems mentioned in the background section. Utility Model Content

[0004] To address the problems of traditional multi-rotor drones, such as the inconvenience of disassembling and repairing the propellers and the lack of cushioning during landing, which makes them prone to damage, this invention provides a frame for a multi-rotor drone.

[0005] This utility model provides a frame for a multi-rotor unmanned aerial vehicle (UAV), employing the following technical solution:

[0006] A frame for a multi-rotor drone includes a drone body. A landing buffer mechanism is provided at the bottom of the drone body. The landing buffer mechanism includes a positioning cylinder. A first spring is fixedly installed at the top of the inner cavity of the positioning cylinder. A positioning plate is fixedly installed at the bottom of the first spring. Damping rods are fixedly installed on both the left and right sides of the top of the positioning plate and are fixedly connected to the positioning cylinder. A support leg is fixedly installed at the bottom of the positioning plate, and a support base is fixedly installed at the bottom of the support leg.

[0007] The surface of the drone body is provided with a propeller mechanism, which includes a fixing box and a propeller body. A connecting rod is fixedly installed on one side of the propeller body, a connecting block is fixedly installed at one end of the connecting rod, and an insert block is fixedly installed on one side of the connecting block. The inner cavity of the fixing box has a slot for cooperating with the insert block. A reset cylinder is fixedly installed on the top of the fixing box. A second spring is fixedly installed on the top of the inner cavity of the reset cylinder. A reset plate is fixedly installed on the bottom of the second spring. An insert rod is fixedly installed in the inner cavity of the reset plate. The top of the insert block has a circular groove for cooperating with the insert rod. A pull ring is fixedly installed on the top of the insert rod.

[0008] By adopting the above technical solution and setting a landing buffer mechanism, the first spring can buffer the impact force when the support base contacts the ground, and the damping rod can prevent the first spring from repeatedly rebounding. By setting a propeller mechanism, the insertion rod can be disengaged from the insertion block by pulling the pull ring, thereby facilitating the disassembly of the propeller body. By releasing the pull ring, the second spring can be used to drive the insertion rod to insert into the insertion block, thereby installing the propeller body.

[0009] Optionally, the landing buffer mechanism consists of three sets, and the three sets of landing buffer mechanisms are distributed at the bottom of the drone body.

[0010] By adopting the above technical solutions, the three sets of landing buffer mechanisms can make the drone more stable when landing.

[0011] Optionally, a connecting stud is fixedly installed on the top of the positioning cylinder, and a connecting screw groove is opened on the bottom of the drone body to cooperate with the connecting stud.

[0012] By adopting the above technical solution, the connecting stud is screwed into the connecting screw groove, which can stabilize the positioning cylinder and facilitate disassembly and maintenance.

[0013] Optionally, guide sliders are fixedly installed on both the left and right sides of the positioning plate, and guide grooves are provided in the inner cavity of the positioning cylinder.

[0014] By adopting the above technical solution, the guide slider and the guide groove are used together to guide the positioning plate and make the positioning plate move stably.

[0015] Optionally, the bottom of the support base is provided with a rubber pad, and the bottom of the rubber pad is provided with anti-slip texture.

[0016] By adopting the above technical solution, the rubber pad plays a buffering role, and the anti-slip texture can prevent side slipping.

[0017] Optionally, the propeller mechanism consists of four sets, and the four sets of propeller mechanisms are distributed around the main body of the UAV.

[0018] By adopting the above technical solution, four sets of propeller mechanisms constitute a multi-rotor drone, which can make the drone more stable during flight.

[0019] Optionally, sliding blocks are fixedly installed on both the left and right sides of the reset plate, and a sliding groove is provided in the inner cavity of the reset cylinder.

[0020] By adopting the above technical solution, the sliding block and the sliding groove are used together to guide the reset plate, making the reset plate stable when it moves.

[0021] In summary, this utility model has the following beneficial effects:

[0022] 1. This utility model incorporates a landing buffer mechanism, in which a first spring buffers the impact force when the support base contacts the ground, and a damping rod prevents the first spring from repeatedly rebounding. A propeller mechanism is also incorporated, where pulling the pull ring allows the insertion rod to disengage from the insertion block, facilitating the disassembly of the propeller body. Releasing the pull ring allows the second spring to rebound, driving the insertion rod to insert into the insertion block, thereby installing the propeller body.

[0023] 2. The three-stage landing buffer mechanism of this utility model makes the drone more stable when landing. The connecting stud is screwed into the connecting screw groove to stabilize the positioning cylinder and facilitate disassembly and maintenance. The guide slider and guide groove work together to guide the positioning plate and make the positioning plate stable when moving. The rubber pad plays a buffering role, and the anti-slip texture can prevent sideslip. The four propeller mechanisms constitute a multi-rotor drone, which makes the drone more stable when flying. The sliding block and sliding groove work together to guide the reset plate and make the reset plate stable when moving. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the bottom structure of this utility model.

[0026] Figure 3 This is a schematic diagram of the landing buffer mechanism of this utility model.

[0027] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0028] Figure 5 This is a schematic diagram of the propeller mechanism of this utility model.

[0029] Figure 6 This is a utility model Figure 5 Enlarged structural diagram at point B.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. UAV main body; 2. Landing buffer mechanism; 201. Positioning cylinder; 202. Connecting stud; 203. Connecting screw groove; 204. First spring; 205. Positioning plate; 206. Damping rod; 207. Support leg; 208. Support base; 3. Propeller mechanism; 301. Fixing box; 302. Propeller main body; 303. Connecting rod; 304. Connecting block; 305. Insert block; 306. Reset cylinder; 307. Second spring; 308. Reset plate; 309. Insert rod; 310. Pull ring. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-6This application will be described in further detail.

[0033] Example 1:

[0034] Please refer to Figure 1-4 A frame for a multi-rotor unmanned aerial vehicle (UAV) includes a UAV body 1. A landing buffer mechanism 2 is located at the bottom of the UAV body 1. The landing buffer mechanism 2 includes a positioning cylinder 201. A first spring 204 is fixedly installed at the top of the inner cavity of the positioning cylinder 201. A positioning plate 205 is fixedly installed at the bottom of the first spring 204. Damping rods 206 are fixedly installed on both the left and right sides of the top of the positioning plate 205, and the damping rods 206 are fixedly connected to the positioning cylinder 201. Support legs 207 are fixedly installed at the bottom of the positioning plate 205. A support base 208 is fixedly installed at the bottom of the 07. There are three sets of landing buffer mechanisms 2, and the three sets of landing buffer mechanisms 2 are distributed at the bottom of the drone body 1. A connecting stud 202 is fixedly installed at the top of the positioning cylinder 201. A connecting screw groove 203 that works with the connecting stud 202 is opened at the bottom of the drone body 1. Guide sliders are fixedly installed on both the left and right sides of the positioning plate 205. A guide groove is opened in the inner cavity of the positioning cylinder 201. A rubber pad is provided at the bottom of the support base 208, and the bottom of the rubber pad is provided with anti-slip texture.

[0035] In this embodiment: by setting a landing buffer mechanism 2, when the support seat 208 contacts the ground, the first spring 204 can buffer the impact force, the damping rod 206 can prevent the first spring 204 from repeatedly rebounding, the three sets of landing buffer mechanisms 2 can make the drone more stable when landing, the connecting stud 202 is screwed into the connecting screw groove 203, which can stabilize the positioning cylinder 201 and facilitate disassembly and maintenance, the guide slider and the guide groove are used together to guide the positioning plate 205, so that the positioning plate 205 is stable when moving, the rubber pad plays a buffering role, and the anti-slip texture can prevent side slipping.

[0036] Example 2:

[0037] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6The surface of the drone body 1 is provided with a propeller mechanism 3, which includes a fixing box 301 and a propeller body 302. A connecting rod 303 is fixedly installed on one side of the propeller body 302, and a connecting block 304 is fixedly installed on one end of the connecting rod 303. An insert block 305 is fixedly installed on one side of the connecting block 304. The inner cavity of the fixing box 301 has a slot for cooperating with the insert block 305. A reset cylinder 306 is fixedly installed on the top of the fixing box 301. The top of the inner cavity of the reset cylinder 306... A second spring 307 is fixedly installed, and a reset plate 308 is fixedly installed at the bottom of the second spring 307. A plug rod 309 is fixedly installed in the inner cavity of the reset plate 308, and a circular groove for cooperating with the plug rod 309 is opened on the top of the plug block 305. A pull ring 310 is fixedly installed on the top of the plug rod 309. There are four sets of propeller mechanisms 3, and the four sets of propeller mechanisms 3 are distributed around the main body of the UAV 1. Sliding blocks are fixedly installed on both the left and right sides of the reset plate 308, and a sliding groove is opened in the inner cavity of the reset cylinder 306.

[0038] In this embodiment: By setting up a propeller mechanism 3, the insertion rod 309 can be disengaged from the insertion block 305 by pulling the pull ring 310, thereby facilitating the disassembly of the propeller body 302. By releasing the pull ring 310, the second spring 307 can be used to push the insertion rod 309 into the insertion block 305, thereby installing the propeller body 302. The four sets of propeller mechanisms 3 constitute a multi-rotor UAV, which can make the UAV more stable during flight. The sliding block and the sliding groove are used in conjunction to guide the reset plate 308, making the reset plate 308 stable when moving.

[0039] The implementation principle of this utility model is as follows: When in use, the connecting stud 202 is screwed into the connecting screw groove 203 to fix the positioning cylinder 201. When landing, the support seat 208 contacts the ground. The first spring 204 can buffer the impact force, and the damping rod 206 can prevent the first spring 204 from repeatedly rebounding. Pulling the pull ring 310 drives the insertion rod 309 to move upward, so that the insertion rod 309 is separated from the insertion block 305, which facilitates the disassembly of the propeller body 302. When the pull ring 310 is released, the second spring 307 rebounds and drives the reset plate 308 back to its original position. The reset plate 308 drives the insertion rod 309 to insert into the insertion block 305, which can stabilize the propeller body 302.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0041] The above description is only a specific embodiment of the present utility model. Various examples and illustrations do not constitute a limitation on the substantive content of the present utility model. Those skilled in the art can make modifications or variations to the specific embodiments described above after reading the description without departing from the essence and scope of the utility model.

Claims

1. A frame of a multi-copter drone comprising a drone body (1), characterized in that: The bottom of the unmanned aerial vehicle body (1) is provided with a landing buffer mechanism (2), the landing buffer mechanism (2) comprises a positioning cylinder (201), a first spring (204) is fixedly installed at the top of the inner cavity of the positioning cylinder (201), a positioning plate (205) is fixedly installed at the bottom of the first spring (204), damping rods (206) are fixedly installed at the top of the left and right sides of the positioning plate (205), and the damping rods (206) are fixedly connected with the positioning cylinder (201), a supporting leg (207) is fixedly installed at the bottom of the positioning plate (205), and a supporting seat (208) is fixedly installed at the bottom of the supporting leg (207). The surface of the unmanned aerial vehicle body (1) is provided with a propeller mechanism (3), the propeller mechanism (3) comprises a fixed box (301) and a propeller body (302), a connecting rod (303) is fixedly installed on one side of the propeller body (302), a connecting block (304) is fixedly installed at one end of the connecting rod (303), an insertion block (305) is fixedly installed on one side of the connecting block (304), an insertion slot is formed in the inner cavity of the fixed box (301) and matched with the insertion block (305), a reset cylinder (306) is fixedly installed at the top of the fixed box (301), a second spring (307) is fixedly installed at the top of the inner cavity of the reset cylinder (306), a reset plate (308) is fixedly installed at the bottom of the second spring (307), an insertion rod (309) is fixedly installed in the inner cavity of the reset plate (308), and a circular groove is formed at the top of the insertion block (305) and matched with the insertion rod (309), and a pull ring (310) is fixedly installed at the top of the insertion rod (309).

2. The frame of claim 1, wherein: The landing buffer mechanism (2) is three groups, and the three groups of landing buffer mechanisms (2) are distributed at the bottom of the unmanned aerial vehicle body (1).

3. The frame of claim 1, wherein: The top of the positioning cylinder (201) is fixedly installed with a connecting stud (202), and the bottom of the unmanned aerial vehicle body (1) is provided with a connecting screw groove (203) matched with the connecting stud (202).

4. The frame of claim 1, wherein: The left and right sides of the positioning plate (205) are fixedly installed with guide sliding blocks, and the inner cavity of the positioning cylinder (201) is provided with guide sliding grooves.

5. The frame of claim 1, wherein: The bottom of the supporting seat (208) is provided with a rubber pad, and the bottom of the rubber pad is provided with anti-skid lines.

6. The frame of claim 1, wherein: The propeller mechanism (3) is four groups, and the four groups of propeller mechanisms (3) are distributed around the unmanned aerial vehicle body (1).

7. The frame of claim 1, wherein: The left and right sides of the reset plate (308) are fixedly installed with sliding blocks, and the inner cavity of the reset cylinder (306) is provided with sliding grooves.

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