Unmanned aerial vehicle anti-falling structure for photogrammetry

Abstract

The utility model discloses an unmanned aerial vehicle anti-falling structure for photogrammetry, which comprises an unmanned aerial vehicle body, supporting legs, a connecting rod and a buffer device, each supporting leg comprises a fixed section and a rotating rod, the rotating rods are rotationally connected with the fixed sections, and the rotating rods are sequentially installed on the wings of the unmanned aerial vehicle body through the fixed sections; the buffering device comprises an abutting disc and a base, the abutting disc and the base are elastically and telescopically connected, the upper end of the abutting disc abuts against the lower end face of the unmanned aerial vehicle body, a plurality of connecting rods are rotationally arranged on the base in the circumferential direction in a one-to-one correspondence mode, and the ends, away from the base, of the connecting rods are rotationally connected with rotating rods. According to the unmanned aerial vehicle, the supporting legs and the buffering devices are arranged, the buffering devices are used for buffering the falling impact force of the unmanned aerial vehicle body, meanwhile, the supporting legs are unfolded, the landing area of the unmanned aerial vehicle body is increased, and rollover of the unmanned aerial vehicle caused by bouncing force generated by up-down contraction movement in the landing process is prevented; and the landing of the unmanned aerial vehicle body is more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field, concretely is a photography survey unmanned plane anti -fall structure. BACKGROUND

[0002] Unmanned plane is a kind of not carrying the plane of using radio remote control equipment and self-provided program control device manipulation, with the development of unmanned plane technology, the application field of unmanned plane also gradually increases, the current unmanned plane is mainly used in aerial photography, agriculture, surveying and mapping, video shooting etc.

[0003] In prior art, the utility model discloses a kind of aviation photography survey unmanned plane anti -fall structures of patent No.

[0004] The above-mentioned patent is a kind of protection structure for unmanned plane anti -fall, mainly by setting up buffer leg and high pressure gas storage to protect the bottom of unmanned plane;But the bottom structure of the device is complex, high pressure gas storage needs to be inflated, leading to troublesome operation, and the buffer leg set only buffer by up and down contraction, possibly cause bounce when landing, cause unmanned plane to roll over;It needs to be further improved. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of photography survey unmanned plane anti -fall structure, to improve the buffer structure complex of existing unmanned plane anti -fall structure, troublesome operation, and possibly cause the whole unmanned plane to bounce up and down by the up and down contraction of buffer leg, cause unmanned plane to roll over.

[0006] The utility model discloses an unmanned aerial vehicle anti-falling structure for photogrammetry, which comprises an unmanned aerial vehicle body, supporting legs, connecting rods and a buffer device.

[0007] Preferably, the fixing section comprises a mounting sleeve and a fixing rod, the mounting sleeve is detachably sleeved on the wing of the unmanned aerial vehicle body, the fixing rod is fixedly arranged at the lower end face of the mounting sleeve, and the lower end of the fixing rod is rotationally connected with the upper end of the rotating rod.

[0008] Preferably, a fixing bolt is further arranged on the fixing section, the fixing bolt is rotationally arranged at the upper end face of the fixing section, and the lower end of the fixing bolt extends and abuts against the wing of the unmanned aerial vehicle body.

[0009] Preferably, the rotating rod comprises a rotating head and a moving wheel, the upper end of the rotating rod is provided with the rotating head, the lower end of the fixing section is provided with a first rotating shaft, and the rotating head is rotationally arranged on the first rotating shaft; the lower end of the rotating rod is rotationally provided with the moving wheel.

[0010] Preferably, the connecting rod comprises a first rotating hole and a second rotating hole; a connecting groove is formed in the middle part of the rotating rod, a second rotating shaft is rotationally arranged in the connecting groove; the base is provided with a third rotating shaft corresponding to the position of each rotating rod; the first rotating hole is rotationally arranged on the corresponding second rotating shaft, and the second rotating hole is rotationally arranged on the corresponding third rotating shaft.

[0011] Preferably, the buffer device further comprises an extension rod, and the abutting disc and the base are telescopically connected through the extension rod.

[0012] Preferably, the buffer device further comprises a spring, the spring is sleeved on the extension rod, the upper end of the spring is fixedly connected with the bottom of the abutting disc, and the lower end of the spring is fixedly connected with the upper end face of the base.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、The utility model discloses a supporting leg and a buffer device are arranged, the buffer device buffers the impact force of the unmanned aerial vehicle body descending, meanwhile, the supporting leg is spread, the ground contact area of the unmanned aerial vehicle body landing is increased, the unmanned aerial vehicle is prevented from rolling over because of the rebound force caused by the contraction movement between upper and lower parts during landing, and the landing of the unmanned aerial vehicle body is more stable.

[0015] 2. The utility model provides support legs, which are divided into fixed sections and rotating rods, so that the support legs can be gradually expanded as the drone body lands, thereby increasing the ground contact area of ​​the drone body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0017] Figure 2 It is a structural diagram of the fixed section of the utility model;

[0018] Figure 3 It is a structural diagram of the rotating rod of the utility model;

[0019] Figure 4 It is a structural diagram of the connecting rod of the utility model;

[0020] Figure 5 It is a structural diagram of the buffer device of the utility model.

[0021] In the figure: 1. UAV body; 2. Support leg; 201. Fixed section; 202. Rotating rod; 203. Fixing bolt; 204. Mounting sleeve; 205. Fixed rod; 206. First rotating axis; 207. Rotating head; 208. Connecting groove; 209. Second rotating axis; 210. Moving wheel; 3. Connecting rod; 301. First rotating hole; 302. Second rotating hole; 4. Buffer device; 401. Abutment plate; 402. Telescopic rod; 403. Base; 404. Spring; 405. Third rotating axis. DETAILED DESCRIPTION

[0022] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0024] Example 1

[0025] like Figure 1 、 Figure 2 and Figure 3As shown, a photogrammetry unmanned aerial vehicle anti-falling structure, including unmanned aerial vehicle body 1, further including support leg 2, connecting rod 3 and buffer device 4; support leg 2 includes fixed section 201 and rotating rod 202, rotating rod 202 and fixed section 201 rotating connection, rotating rod 202 through fixed section 201 is installed on each wing of unmanned aerial vehicle body 1 in turn, by dividing support leg 2 into fixed section 201 and rotating rod 202 can make support leg 2 gradually expand during grounding, increase its ground area, fixed section 201 includes mounting sleeve 204 and fixed rod 205, mounting sleeve 204 can be detachably sleeved on the wing of unmanned aerial vehicle body 1, fixed section 201 is further provided with fixed bolt 203, fixed bolt 203 is rotatably installed on the upper end surface of fixed section 201, and the lower end extends and abuts on the wing of unmanned aerial vehicle body 1, through mounting sleeve 204 can install support leg 2 on unmanned aerial vehicle body 1 without damage, then through fixed bolt 203 make support leg 2 can be tightly installed on unmanned aerial vehicle body 1; fixed rod 205 is fixedly arranged on the lower end surface of mounting sleeve 204, the lower end of fixed rod 205 and the upper end of rotating rod 202 are rotatably connected, rotating rod 202 includes rotating head 207 and moving wheel 210, the upper end of rotating rod 202 is provided with rotating head 207, the lower end of fixed section 201 is provided with first rotating shaft 206, rotating head 207 is rotatably installed on first rotating shaft 206; the lower end of rotating rod 202 is rotatably provided with moving wheel 210, by setting moving wheel 210 can reduce the friction force when support leg 2 and ground abutment expansion, make support leg 2 more smoothly expand.

[0026] As Figure 3 , Figure 4 and Figure 5As shown, the buffer device 4 includes an abutment disc 401 and a base 403, and the abutment disc 401 and the base 403 are elastically and telescopically connected. The buffer device 4 further includes a telescopic rod 402, and the abutment disc 401 and the base 403 are telescopically connected through the telescopic rod 402. The buffer device 4 further includes a spring 404, which is sleeved on the telescopic rod 402, and the upper end is fixedly connected with the bottom of the abutment disc 401, and the lower end is fixedly connected with the upper end surface of the base 403. By arranging the telescopic rod 402 and the spring 404, the impact force when the unmanned aerial vehicle body 1 lands can be offset by the contraction of the telescopic rod 402 and the spring 404. The upper end of the abutment disc 401 abuts against the lower end surface of the unmanned aerial vehicle body 1. The base 403 is provided with a plurality of connecting rods 3 in the circumferential direction one by one, and the connecting rod 3 is rotatably connected with the rotating rod 202 at the end away from the base 403. The connecting rod 3 includes a first rotating hole 301 and a second rotating hole 302. The middle part of the rotating rod 202 is provided with a connecting groove 208, and the second rotating shaft 209 is rotatably arranged in the connecting groove 208. The base 403 is provided with a third rotating shaft 405 at a position corresponding to each rotating rod 202. The first rotating hole 301 is rotatably installed on the corresponding second rotating shaft 209, and the second rotating hole 302 is rotatably installed on the corresponding third rotating shaft 405.

[0027] Embodiment 2

[0028] As shown in Figure 1 , Figure 2 and Figure 3 , a photogrammetry unmanned aerial vehicle anti-falling structure includes an unmanned aerial vehicle body 1, further including a support leg 2, a connecting rod 3 and a buffer device 4. The support leg 2 includes a fixed section 201 and a rotating rod 202, and the rotating rod 202 is rotatably connected with the fixed section 201. The rotating rod 202 is sequentially installed on each wing of the unmanned aerial vehicle body 1 through the fixed section 201. The fixed section 201 includes a mounting sleeve 204 and a fixed rod 205. The mounting sleeve 204 is detachably sleeved on the wing of the unmanned aerial vehicle body 1. The fixed section 201 is further provided with a fixed bolt 203, which is rotatably installed on the upper end surface of the fixed section 201, and the lower end extends to abut against the wing of the unmanned aerial vehicle body 1. The fixed rod 205 is fixedly arranged on the lower end surface of the mounting sleeve 204, and the lower end of the fixed rod 205 is rotatably connected with the upper end of the rotating rod 202. The rotating rod 202 includes a rotating head 207 and a moving wheel 210. The upper end of the rotating rod 202 is provided with the rotating head 207, and the lower end of the fixed section 201 is provided with a first rotating shaft 206. The rotating head 207 is rotatably installed on the first rotating shaft 206. The lower end of the rotating rod 202 is rotatably provided with the moving wheel 210.

[0029] As shown in Figure 3 , Figure 4 and Figure 5As shown, the buffer device 4 includes an abutment plate 401 and a base 403, the abutment plate 401 and the base 403 are elastically and telescopically connected, the buffer device 4 also includes a telescopic rod 402, the abutment plate 401 and the base 403 are telescopically connected through the telescopic rod 402, and the buffer device 4 also includes a spring 404, the spring 404 is sleeved on the telescopic rod 402, the upper end of the spring is fixedly connected to the bottom of the abutment plate 401, and the lower end is fixedly connected to the upper end surface of the base 403; the upper end of the abutment plate 401 abuts against the lower end surface of the drone body 1, and the base 403 supports the abutment plate 401 in a one-to-one manner along the circumferential direction. The leg 2 is rotatably provided with a plurality of connecting rods 3, and the end of the connecting rod 3 away from the base 403 is rotatably connected to the rotating rod 202; the connecting rod 3 includes a first rotating hole 301 and a second rotating hole 302; a connecting groove 208 is opened in the middle of the rotating rod 202, and a second rotating shaft 209 is rotatably provided in the connecting groove 208; a third rotating shaft 405 is provided at a position corresponding to each rotating rod 202 on the base 403; the first rotating hole 301 is rotatably installed on the corresponding second rotating shaft 209, and the second rotating hole 302 is rotatably installed on the corresponding third rotating shaft 405.

[0030] The working principle of the present invention is as follows: when the drone body 1 completes photogrammetry and needs to land, it is first grounded through the base 403 in the buffer device 4, and then the downward pressure of the drone body 1 compresses the telescopic rod 402 and the spring 404. At the same time, when the distance between the base 403 and the drone body 1 is shortened, the supporting legs 2 are driven by the connecting rod 3 to contact the ground and expand to increase the ground contact area, further cushioning the landing.

[0031] In summary, the present invention provides support legs 2 and buffer devices 4, and the buffer devices 4 buffer the impact force of the drone body 1 when it descends. At the same time, the support legs 2 are opened to increase the ground contact area of ​​the drone body 1 when it lands, thereby preventing the drone from tipping over due to the bouncing force generated by the contraction movement between the upper and lower parts during the landing process; making the landing of the drone body 1 more stable; by providing support legs 2, the support legs 2 are divided into a fixed section 201 and a rotating rod 202, so that the support legs 2 can gradually expand as the drone body 1 descends, thereby increasing the ground contact area of ​​the drone body 1 when it lands.

[0032] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A photogrammetry drone anti-fall structure, comprising a drone body (1), characterized in that: The invention also includes a support leg (2), a connecting rod (3) and a buffer device (4); the support leg (2) includes a fixed section (201) and a rotating rod (202), the rotating rod (202) and the fixed section (201) are rotatably connected, and the rotating rod (202) is sequentially installed on each wing of the drone body (1) through the fixed section (201); the buffer device (4) includes an abutment disk (401) and a base (403), the abutment disk (401) and the base (403) are elastically and telescopically connected, the upper end of the abutment disk (401) abuts against the lower end surface of the drone body (1), and the base (403) is provided with a plurality of connecting rods (3) rotatably corresponding to the support legs (2) along the circumferential direction, and the end of the connecting rod (3) away from the base (403) is rotatably connected to the rotating rod (202).

2. The anti-fall structure of a drone for photogrammetry according to claim 1, characterized in that: The fixed section (201) comprises a mounting sleeve (204) and a fixing rod (205); the mounting sleeve (204) is detachably mounted on the wing of the drone body (1); the fixing rod (205) is fixedly arranged on the lower end surface of the mounting sleeve (204); and the lower end of the fixing rod (205) is rotatably connected to the upper end of the rotating rod (202).

3. The anti-fall structure of a drone for photogrammetry according to claim 2, characterized in that: The fixing section (201) is also provided with a fixing bolt (203), which is rotatably mounted on the upper end surface of the fixing section (201), and has a lower end extending to abut against the wing of the drone body (1).

4. The anti-fall structure of a drone for photogrammetry according to claim 2, characterized in that: The rotating rod (202) comprises a rotating head (207) and a moving wheel (210); the rotating head (207) is provided at the upper end of the rotating rod (202); the first rotating shaft (206) is provided at the lower end of the fixed section (201); the rotating head (207) is rotatably mounted on the first rotating shaft (206); and the moving wheel (210) is rotatably provided at the lower end of the rotating rod (202).

5. The anti-fall structure of a drone for photogrammetry according to claim 1, characterized in that: The connecting rod (3) includes a first rotating hole (301) and a second rotating hole (302); a connecting groove (208) is provided in the middle of the rotating rod (202), and a second rotating shaft (209) is rotatably provided in the connecting groove (208); a third rotating shaft (405) is provided at a position of the base (403) corresponding to each rotating rod (202); the first rotating hole (301) is rotatably mounted on the corresponding second rotating shaft (209), and the second rotating hole (302) is rotatably mounted on the corresponding third rotating shaft (405).

6. The anti-fall structure of a drone for photogrammetry according to claim 1, characterized in that: The buffer device (4) further comprises a telescopic rod (402), and the abutment plate (401) and the base (403) are telescopically connected via the telescopic rod (402).

7. The anti-fall structure of a drone for photogrammetry according to claim 6, characterized in that: The buffer device (4) further comprises a spring (404), which is sleeved on the telescopic rod (402), with an upper end fixedly connected to the bottom of the abutment plate (401), and a lower end fixedly connected to the upper end surface of the base (403).

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