Unmanned aerial vehicle with protection structure

Abstract

The unmanned aerial vehicle with the protection structure comprises an unmanned aerial vehicle body, fan arms are fixedly connected to the four corners of the unmanned aerial vehicle body, and paddle bodies are installed at the ends of the fan arms; protection assemblies are arranged at the four corners of the unmanned aerial vehicle body correspondingly, each protection assembly comprises a moving plate, and the top face of each moving plate is rotationally connected with a rotating plate; a mounting ring is mounted at one end of the rotating plate, spring steel sheets are symmetrically arranged on the two sides of the rotating plate, a plurality of reinforcing ribs are fixedly connected to the outer sides of the spring steel sheets, and damping rods are symmetrically arranged on the two sides of the rotating plate; the outer side of the mounting ring is fixedly connected with a buffer pad, and the inner side of the mounting ring is provided with a noise reduction assembly; the mounting ring wraps the head of the blade body and the head of the fan arm at the same time, the fan arm and the blade body are protected, and the spring steel sheet and the first spring cooperate with the damping rod to improve the stability of the mounting ring during normal work.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a UAV with a protective structure. Background Technology

[0002] The propellers of existing drones are usually directly exposed to the external environment. If the drone needs to work close to a wall, the drone propellers will collide with the wall. The rotating propellers will first come into contact with the wall, directly causing damage to the drone propellers and further leading to the drone crashing.

[0003] Publication number CN222137067U discloses a drone with a propeller protection structure, including a drone body. A protective vibration damping component is arranged around the propeller blades of the drone body. The protective vibration damping component includes a chassis, a fixed rod connected to the upper center of the chassis, a torsion spring arranged around the fixed rod, a rotating rod connected below the torsion spring, and a bottom ring on the upper surface of the chassis. This device, through the setting of the protective vibration damping component, with a limiting block placed around the propeller blades of the drone body, plays a protective role and facilitates subsequent maintenance or replacement of the drone body's propeller blades. The sponge pad plays a buffering role; the force on the sponge pad is transmitted to the vibration damper through the side plate. The vibration damper plays an energy dissipation and shock absorption role, preventing excessive impact force after collision from affecting the balance of the drone body. The guide rod plays a guiding role. However, this patent still has the following problems in actual use:

[0004] The wings of existing drones are also relatively fragile. Under normal circumstances, when a collision causes damage to the blades, the wings will often break as well. The device mentioned above installs the protective structure directly on the wing, which may result in a situation where the blades are intact but the wing is damaged after a collision.

[0005] A drone with a protective structure is proposed to address the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a drone with a protective structure to solve the problem mentioned in the background art that the wings of existing drones are also relatively fragile. Under normal circumstances, when a collision occurs, the blades will be damaged, and the wings will often break due to the collision. The above-mentioned device directly installs the protective structure on the wing, which may result in the blades being intact but the wing being damaged after a collision.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a drone with a protective structure, comprising a drone body, fan arms fixedly connected to the four corners of the drone body, and propeller bodies installed at the ends of the fan arms;

[0008] The four corners of the drone body are provided with protective components. The protective components include movable grooves formed on the surface of the drone body. A first spring is fixedly connected inside the movable groove. A movable plate is installed on the top surface of the first spring. A rotating plate is rotatably connected to the top surface of the movable plate.

[0009] The rotating plate has an installation ring installed at the end away from the moving plate, spring steel sheets are symmetrically arranged on both sides of the rotating plate, several reinforcing ribs are fixedly connected to the outer side of the spring steel sheets, a first fixing pad is fixedly connected to one end of the spring steel sheet, a second fixing pad is fixedly connected to the other end of the spring steel sheet, and damping rods are symmetrically arranged on both sides of the rotating plate.

[0010] The bottom of the movable plate is fixedly connected to a stepped block, and a noise reduction component is provided on the inner side of the mounting ring.

[0011] Preferably, one end of the first spring is fixedly connected to the moving groove, the other end of the first spring is fixedly connected to the step block, one end of the damping rod is rotatably connected to the surface of the moving plate, the other end of the damping rod is rotatably connected to the rotating plate, and the step block is slidably connected to the moving groove.

[0012] Preferably, a wide plate is fixedly connected to the end of the rotating plate away from the moving plate, and a pair of first screw holes and a pair of second screw holes are provided on one side of the mounting ring. The wide plate is fixed to the first screw holes by bolts, and the first fixing pad is fixed to the second screw holes by bolts.

[0013] Preferably, the second fixing pad is fixedly connected to the outer side of the drone body.

[0014] Preferably, a buffer pad is fixedly connected to the outer side of the mounting ring.

[0015] Preferably, the noise reduction component includes a noise reduction ring disposed inside the mounting ring, and a plurality of connecting ribs are fixedly connected between the noise reduction ring and the mounting ring, and the noise reduction ring is sleeved on the outside of the blade body.

[0016] Preferably, the noise reduction ring has a plurality of noise reduction holes.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This UAV with a protective structure has a mounting ring that simultaneously wraps around the blade body and the head of the fan arm, thus protecting the fan arm and blade body. The spring steel sheet and the first spring, in conjunction with the damping rod, increase the stability of the mounting ring during normal operation. The specific details are as follows:

[0018] 1. The impact causes the buffer pad and mounting ring to shift, resulting in the bending deformation of the spring steel sheet, which counteracts the impact force and prevents the blade body or fan arm from being directly hit. The mounting ring also wraps around the head of the blade body and fan arm, protecting them. Furthermore, the reinforcing ribs increase the strength of the spring steel sheet, preventing excessive deformation or even breakage due to strong impacts. When the mounting ring shifts, the rotating plate rotates, causing the damping rod to extend and retract accordingly. The damping rod reduces the wobbling of the mounting ring during the elastic deformation of the spring steel sheet. When the entire rotating plate slides inside the moving groove due to the impact, the thrust provided by the first spring slows down the deformation of the spring steel sheet caused by the impact, increasing its service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the top surface structure of this utility model;

[0020] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 3 This is a schematic diagram of the installation structure of the stepped blocks and the movable plate;

[0022] Figure 4 This is a schematic diagram of the installation structure of the spring steel sheet and the reinforcing rib;

[0023] Figure 5 This is a schematic diagram of the mounting structure of the mounting ring and the noise reduction ring.

[0024] In the diagram: 1. UAV body; 101. Fan arm; 102. Propeller body; 2. Protective components; 201. Moving slot; 202. First spring; 203. Moving plate; 204. Rotating plate; 205. Damping rod; 206. Mounting ring; 207. First fixing pad; 208. Spring steel sheet; 209. Second fixing pad; 210. Step block; 211. First screw hole; 212. Second screw hole; 213. Buffer pad; 214. Reinforcing rib; 3. Noise reduction components; 301. Connecting rib; 302. Noise reduction ring; 303. Noise reduction hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1- Figure 5 The present invention provides a technical solution: a drone with a protective structure, including a drone body 1, fan arms 101 fixedly connected to the four corners of the drone body 1, and propeller bodies 102 installed at the ends of the fan arms 101; protective components 2 are provided at the four corners of the drone body 1, and the protective components 2 include a movable groove 201 opened on the surface of the drone body 1, a first spring 202 fixedly connected inside the movable groove 201, a movable plate 203 installed on the top surface of the first spring 202, and a rotating plate 204 rotatably connected to the top surface of the movable plate 203;

[0027] The rotating plate 204 has an installation ring 206 installed at the end away from the moving plate 203. Spring steel sheets 208 are symmetrically arranged on both sides of the rotating plate 204. Several reinforcing ribs 214 are fixedly connected to the outer side of the spring steel sheets 208. A first fixing pad 207 is fixedly connected to one end of the spring steel sheet 208, and a second fixing pad 209 is fixedly connected to the other end of the spring steel sheet 208. Damping rods 205 are symmetrically arranged on both sides of the rotating plate 204. The installation ring 206 simultaneously wraps around the head of the blade body 102 and the fan arm 101, thereby protecting the fan arm 101 and the blade body 102. The rotating plate 204 rotates and causes the damping rods 205 to extend and retract accordingly. The damping rods 205 can reduce the shaking of the installation ring 206 during the elastic deformation of the spring steel sheets 208, thereby increasing the stability of the installation ring 206 during use.

[0028] Among them, the bottom of the movable plate 203 is fixedly connected to the step block 210, and the inner side of the mounting ring 206 is provided with a noise reduction component 3.

[0029] One end of the first spring 202 is fixedly connected to the moving groove 201, and the other end of the first spring 202 is fixedly connected to the step block 210. One end of the damping rod 205 is rotatably connected to the surface of the moving plate 203, and the other end of the damping rod 205 is rotatably connected to the rotating plate 204. The step block 210 is slidably connected to the moving groove 201.

[0030] A wide plate is fixedly connected to the end of the rotating plate 204 away from the moving plate 203. A pair of first screw holes 211 and a pair of second screw holes 212 are provided on one side of the mounting ring 206. The wide plate is fixed to the first screw holes 211 by bolts, and the first fixing pad 207 is fixed to the second screw holes 212 by bolts. The bolts can be used to disassemble the first fixing pad 207 and the wide plate, thereby facilitating the replacement and maintenance of the mounting ring 206.

[0031] The second fixing pad 209 is fixedly connected to the outside of the drone body 1; the second fixing pad 209 is also fixedly connected to the outside of the drone body 1 by bolts.

[0032] A buffer pad 213 is fixedly connected to the outside of the mounting ring 206; the buffer pad 213 is made of sponge and also has sound absorption function.

[0033] The noise reduction component 3 includes a noise reduction ring 302 located inside the mounting ring 206. Several connecting ribs 301 are fixedly connected between the noise reduction ring 302 and the mounting ring 206. The noise reduction ring 302 is sleeved on the outside of the blade body 102.

[0034] The noise reduction ring 302 has several noise reduction holes 303;

[0035] Working principle: Before using this type of drone with a protective structure, it is necessary to check the overall condition of the device to ensure it can function normally. Figure 1 - Figure 5 As shown, when a collision occurs, the positions of the buffer pad 213 and the mounting ring 206 will shift, causing the spring steel sheet 208 to bend and deform, thus offsetting the impact force and preventing the blade body 102 or the fan arm 101 from being directly impacted; the mounting ring 206 also wraps around the head of the blade body 102 and the fan arm 101, thus protecting the fan arm 101 and the blade body 102.

[0036] Furthermore, the reinforcing rib 214 can increase the strength of the spring steel sheet 208, preventing it from undergoing excessive deformation or even breaking due to strong impact;

[0037] When the mounting ring 206 is offset, the rotating plate 204 rotates and causes the damping rod 205 to extend and retract accordingly. The damping rod 205 can reduce the shaking of the mounting ring 206 during the elastic deformation of the spring steel sheet 208. When the entire rotating plate 204 slides inside the moving groove 201 due to the collision, the thrust provided by the first spring 202 can slow down the deformation of the spring steel sheet 208 due to the collision and increase the service life of the spring steel sheet 208.

[0038] The noise generated by the blade body 102 is diluted by the noise reduction ring 302 and the noise reduction hole 303, thereby reducing the operating noise of the drone.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drone with a protective structure, comprising a drone body (1), wherein fan arms (101) are fixedly connected to the four corners of the drone body (1), and a propeller body (102) is installed at the end of the fan arms (101); characterized in that Also includes: The four corners of the drone body (1) are provided with protective components (2). The protective components (2) include a moving groove (201) opened on the surface of the drone body (1). A first spring (202) is fixedly connected inside the moving groove (201). A moving plate (203) is installed on the top surface of the first spring (202). A rotating plate (204) is rotatably connected to the top surface of the moving plate (203). The rotating plate (204) has an installation ring (206) installed at one end away from the moving plate (203). Spring steel sheets (208) are symmetrically arranged on both sides of the rotating plate (204). Several reinforcing ribs (214) are fixedly connected to the outer side of the spring steel sheets (208). A first fixing pad (207) is fixedly connected to one end of the spring steel sheet (208), and a second fixing pad (209) is fixedly connected to the other end of the spring steel sheet (208). Damping rods (205) are symmetrically arranged on both sides of the rotating plate (204). The bottom of the movable plate (203) is fixedly connected to a step block (210), and a noise reduction component (3) is provided on the inner side of the mounting ring (206).

2. The unmanned aerial vehicle with a protective structure according to claim 1, wherein: One end of the first spring (202) is fixedly connected to the moving groove (201), and the other end of the first spring (202) is fixedly connected to the step block (210). One end of the damping rod (205) is rotatably connected to the surface of the moving plate (203), and the other end of the damping rod (205) is rotatably connected to the rotating plate (204). The step block (210) is slidably connected to the moving groove (201).

3. The unmanned aerial vehicle with a protective structure of claim 1, wherein: A wide plate is fixedly connected to one end of the rotating plate (204) away from the moving plate (203). A pair of first screw holes (211) and a pair of second screw holes (212) are provided on one side of the mounting ring (206). The wide plate is fixed to the first screw hole (211) by bolts, and the first fixing pad (207) is fixed to the second screw hole (212) by bolts.

4. The unmanned aerial vehicle with a protective structure of claim 1, wherein: The second fixing pad (209) is fixedly connected to the outside of the UAV body (1).

5. The unmanned aerial vehicle with a protective structure of claim 1, wherein: A buffer pad (213) is fixedly connected to the outer side of the mounting ring (206).

6. The unmanned aerial vehicle with a protective structure of claim 1, wherein: The noise reduction component (3) includes a noise reduction ring (302) disposed inside the mounting ring (206), and a plurality of connecting ribs (301) are fixedly connected between the noise reduction ring (302) and the mounting ring (206). The noise reduction ring (302) is sleeved on the outside of the blade body (102).

7. The unmanned aerial vehicle with a protective structure of claim 6, wherein: The noise reduction ring (302) has several noise reduction holes (303).

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