Unmanned aerial vehicle fuselage with crash protection structure

Abstract

The utility model discloses a unmanned aerial vehicle fuselage with anti -collision protection structure, including frame (1), be equipped with a plurality of side branch (2) around frame (1), and the end upper surface of side branch (2) is equipped with propeller (3), the end lower surface of side branch (2) is equipped with the anti -collision protection frame (4) for protecting propeller (3), and the anti -collision protection frame (4) has locating groove (5) on, and the both sides of locating groove (5) inner wall are connected with the outside of side branch (2) through the orientation limiting structure, the bottom of side branch (2) has the support (6), and the end of anti -collision protection frame (4) is equipped with the connecting piece (7) corresponding with support (6), the utility model discloses can realize the quick disassembly of anti -collision protection frame, and the operation is convenient and fast, satisfies the protection demand of different scenes.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicles (UAVs), and in particular to UAV fuselages with anti-collision protection structures. Background Technology

[0002] Drones play a significant role in various fields. During flight, especially in complex environments, drones are highly susceptible to collisions with external objects. As a critical power component of drones, the propeller can not only be damaged upon collision but may also cause the drone to crash. Therefore, installing a collision protection structure at the propeller is crucial for ensuring the safe operation of drones. For example, Chinese utility model patent CN221316685U discloses a drone collision protection buffer device, including a collision protection buffer structure and a body. The collision protection buffer structure includes a protective frame, several support legs connected to the protective frame, and a collision protection buffer frame hinged to the support legs. The collision protection buffer frame includes an elastic telescopic rod and a support claw hinged to the telescopic end of the elastic telescopic rod. The upper and lower surfaces of the elastic telescopic rod near the protective frame are provided with first springs connected to the support legs. The upper and lower surfaces of the telescopic end of the elastic telescopic rod are rotatably connected to second springs. The end of the second spring away from the elastic telescopic rod is rotatably connected to the support claw. A wing protection frame is also provided on the protective frame.

[0003] However, drones are used in a wide variety of scenarios, and their collision protection needs vary considerably. In confined spaces such as indoors or in forests, or in areas with numerous obstacles, wing protection frames provide sufficient protection to avoid collisions. However, in open areas such as high altitudes or open fields, wing protection frames may actually increase drag and affect flight endurance, necessitating the removal of the protective structure to optimize flight performance. Current wing protection frames are mostly fixed using screws, requiring tools for installation and removal, making the process cumbersome and time-consuming. This makes it difficult to quickly adapt to the protection needs of different scenarios, causing inconvenience for users. Utility Model Content

[0004] The purpose of this invention is to provide a drone fuselage with a collision protection structure. This invention allows for quick assembly and disassembly of the collision protection frame, making operation convenient and efficient, and meeting the protection needs of different scenarios.

[0005] The technical solution of this utility model is as follows: A drone fuselage with a collision protection structure includes a frame, multiple side supports around the frame, and a propeller on the upper surface of the end of each side support; a collision protection frame for protecting the propeller is provided on the lower surface of the end of each side support, the collision protection frame having a positioning groove, and the inner walls of the positioning groove being connected to the outer side of the side support via guide and limiting structures; a support is provided at the bottom of each side support, and a connecting piece corresponding to the support is provided at the end of the collision protection frame; a shaft passes through the support and the connecting piece, one end of the shaft having a threaded fixing cap, and the other end of the shaft having a hinged clamping handle; a clamping cap is fitted on the shaft, one end of the clamping cap engaging with the clamping handle, and one end of the fixing cap and one end of the clamping cap respectively tightly abutting against the side of the support.

[0006] In the aforementioned drone fuselage with anti-collision protection structure, the guide and limiting structure includes a triangular groove set in the inner wall of the positioning groove, and a triangular strip that fits into the triangular groove is provided on the outer side of the side support.

[0007] In the aforementioned drone fuselage with anti-collision protection structure, the support includes a pair of ribs disposed at the bottom of the side support, the ribs having round holes through which the shaft passes.

[0008] In the aforementioned drone fuselage with anti-collision protection structure, springs are provided at both ends of the shaft, and the fixing cap and the clamping cap are respectively attached to the springs; a ring for spring limiting is provided on one side of the rib plate and at the circumference of the circular hole, and the fixing cap and the clamping cap are respectively attached to the end face of the ring.

[0009] In the aforementioned drone fuselage with anti-collision protection structure, the outer side of the fixing cap has multiple concave arc surfaces.

[0010] In the aforementioned drone fuselage with anti-collision protection structure, the side support is provided with multiple hollowed-out grooves evenly distributed along the length direction.

[0011] In the aforementioned drone fuselage with anti-collision protection structure, the inner ends of both the fixing cap and the clamping cap are fitted with rubber rings, and the rubber rings are in contact with the end face of the ring body.

[0012] In the aforementioned drone fuselage with anti-collision protection structure, both the inner end of the fixing cap and the inner end of the clamping cap are provided with inner grooves for spring limiting.

[0013] In the aforementioned drone fuselage with anti-collision protection structure, the outer end of the clamping handle has an arc-shaped structure.

[0014] Compared with the prior art, the present invention has the following advantages: 1. In this utility model, the positioning groove of the anti-collision protection frame matches the end of the side support. The inner walls of the positioning groove are connected to the outer side of the side support via guide and limiting structures. At the same time, the connecting piece is embedded in the support. The shaft passes through the connecting piece and the support. The fixing cap is screwed onto one end of the shaft. The inner end of the fixing cap is in close contact with one side of the support. Rotating the clamping handle drives the shaft to rotate, and the clamping cap will gradually press against the support. Rotating the clamping handle makes the end of the clamping handle press tightly against the clamping cap, and the support and the connecting piece are stably connected. When disassembling, unscrew the fixing cap, rotate the clamping handle, and pull out the shaft to separate the side support from the anti-collision protection frame. According to the actual use scenario, the anti-collision protection frame can be quickly disassembled and assembled without the need for tools, and the overall operation is convenient.

[0015] 2. By setting springs at both ends of the shaft, the preload of the connection is increased when the fixing cap and the clamping cap are in contact with the support. During the flight of the drone, it will inevitably be subjected to various vibrations and impacts. The presence of springs can effectively buffer these external forces, prevent the shaft from loosening due to vibration, and ensure that the anti-collision protection frame always remains firmly installed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the triangular bar structure; Figure 3 A schematic diagram of the support; Figure 4 This is a schematic diagram of a compression cap; Figure 5 This is a schematic diagram of the clamping handle.

[0017] The markings in the attached diagram are as follows: 1-Frame, 2-Side support, 3-Propeller, 4-Anti-collision protection frame, 5-Positioning groove, 6-Support, 7-Connecting piece, 8-Shaft, 9-Fixing cap, 10-Pressure handle, 11-Pressure cap, 12-Triangular groove, 13-Triangular strip, 14-Rib plate, 15-Round hole, 16-Spring, 17-Ring body, 18-Concave arc surface, 19-Hollow groove, 20-Rubber ring, 21-Inner groove. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] Example: A drone fuselage with a collision protection structure, including a frame 1, as shown in the attached diagram. Figure 1As shown, the frame 1 has multiple side supports 2 around it. Each side support 2 has multiple evenly spaced slots 19 along its length. The flight energy consumption of a drone is closely related to its weight; reducing weight directly means reducing energy consumption, which is crucial for improving the drone's endurance. Simultaneously, the layout of the slots also positively optimizes the airflow field. When the drone is flying, air flows through the side supports, and the slots guide the airflow more smoothly, reducing interference from the side supports to the propeller airflow. A propeller 3 is mounted on the upper surface of the end of each side support 2; a collision protection frame 4 is mounted on the lower surface of the end of each side support 2 to protect the propeller 3. The collision protection frame 4 has positioning slots 5, and the inner walls of the positioning slots 5 are connected to the outer sides of the side supports 2 via guide and limiting structures. The guide and limiting structures include triangular grooves 12 set in the inner wall of the positioning slots 5, and triangular strips 13 on the outer side of the side supports 2 that fit into the triangular grooves 12, as shown in the attached diagram. Figure 2 As shown, the anti-collision protection frame cooperates with the side support. The groove of the positioning groove of the anti-collision protection frame corresponds to the end of the side support, and the triangular grooves on both sides correspond to the triangular strips on the side of the side support. When the anti-collision protection frame is pushed, the end of the side support is inserted into the positioning groove. The bottom of the side support 2 has a support 6, and the end of the anti-collision protection frame 4 has a connecting piece 7 corresponding to the support 6. A shaft 8 is installed through the support 6 and the connecting piece 7. A fixing cap 9 is threaded onto one end of the shaft 8. The outer surface of the fixing cap 9 has multiple concave arc surfaces 18. Through the concave arc surfaces, the hand can hold and fix it relatively stably. The other end of the shaft 8 is hinged to a clamping handle 10. The outer end of the clamping handle 10 has a rounded structure. The rounded surface can distribute the local pressure when turning, reduce hand fatigue, make the force application smoother, and improve the operating efficiency when fixing or disassembling. Figure 5 As shown, a clamping cap 11 is fitted onto the shaft 8, as per the attached diagram. Figure 4 As shown, one end of the clamping cap 11 engages with the clamping handle 10, and one end of the fixing cap 9 and one end of the clamping cap 11 are respectively tightly attached to the side of the support 6. During installation, the shaft first passes through the connecting piece and the support, the inner end of the clamping cap is tightly attached to the support, then the fixing cap is screwed onto the end of the shaft and tightened, and finally the clamping handle is rotated, the clamping handle abuts against and presses the clamping cap, so that the connecting piece and the support are firmly connected. In confined spaces such as indoors and forests or spaces with dense obstacles, the wing protection frame needs to provide sufficient protection to avoid collisions, and the anti-collision protection frame is installed. However, in open areas such as high altitudes and open spaces, the wing protection frame may actually increase flight drag and affect flight range, in which case it is necessary to remove the anti-collision protection frame. The inner ends of the fixing cap 9 and the clamping cap 11 are both provided with inner grooves 21 for limiting the spring 16. In order to prevent the spring from shifting radially on the shaft, the inner grooves are provided so that the spring can be well accommodated in them, ensuring the stability of the spring when compressed.

[0020] The support 6 includes a pair of ribs 14 disposed at the bottom of the side support 2, as shown in the attached figure. Figure 3 As shown, the rib plate 14 has a circular hole 15 through which the shaft 8 passes. The rib plate and the side support are integrally formed. A connecting piece is disposed between the two rib plates, with the hole on the connecting piece aligned with the circular hole. Both ends of the shaft 8 have springs 16, with a fixing cap 9 and a clamping cap 11 respectively fitting against the springs 16. One side of the rib plate 14, located around the circumference of the circular hole 15, has a ring 17 for limiting the springs 16. The ring 17 is integrally formed with the rib plate, and the fixing cap 9 and the clamping cap 11 are tightly fitted against the end face of the ring 17. The spring is fitted onto the end of the shaft. After the shaft passes through the circular hole and the connecting piece, the spring will be inside the ring, with one end of the spring abutting against the surface of the rib plate. As installation progresses, the clamping cap and the fixing cap will gradually compress the spring until it fits against the end face of the ring. Increasing the preload of the connection installation is crucial because drones inevitably experience various vibrations and impacts during flight. The presence of springs effectively buffers these external forces, preventing the shaft from loosening due to vibration and ensuring the anti-collision protection frame remains firmly installed. Both the fixing cap 9 and the clamping cap 11 have rubber rings 20 fitted to their inner ends. The rubber rings 20 are in contact with the end face of the ring body 17. Due to the elasticity and friction of the rubber rings, they can prevent the shaft from rotating due to vibration through their own deformation and frictional damping, thus enhancing the stability of the locked state.

[0021] The working principle of this utility model is as follows: During installation, first align the positioning groove 5 of the anti-collision protection frame 4 with the lower surface of the end of the side support 2, so that the triangular groove 12 on the inner wall of the positioning groove 5 fits with the triangular strip 13 on the outer side of the side support 2; as the anti-collision protection frame 4 is pushed along the triangular strip 13, the connecting piece 7 at its end will gradually be embedded between a pair of ribs 14 of the bottom support 6 of the side support 2 until the through hole on the connecting piece 7 is completely aligned with the round hole 15 on the rib 14. After the hole is aligned, insert the shaft 8 through the round hole 15 of one side rib 14, and pass through the through hole of the connecting piece 7 and the round hole 15 of the other side rib 14 in sequence until one end of the shaft 8 extends out of the outside of the rib 14. At this time, the fixing cap 9 is screwed into the protruding end of the shaft 8. During the rotation of the fixing cap 9, the inner end of the fixing cap 9 will gradually compress the spring 16 on the shaft 8 until the rubber ring 20 at the inner end of the fixing cap 9 is tightly fitted with the end face of the ring 17, completing the pre-fixation on one side. The other end of the shaft 8 is hinged to a clamping handle 10 and fitted with a clamping cap 11. When the clamping handle 10 is turned, since the clamping handle 10 is hinged to the shaft 8, the rotation of the handle will cause the shaft 8 to move slightly axially, so that the clamping cap 11 gradually compresses the spring 16 on the other side until the rubber ring 20 at the inner end of the clamping cap 11 is also tightly fitted with the end face of the ring 17 of the corresponding rib 14.

Claims

1. A drone fuselage with a collision protection structure, comprising a frame (1), with multiple side supports (2) arranged around the frame (1), and a propeller (3) provided on the upper surface of the end of each side support (2); characterized in that: The lower surface of the side support (2) is provided with a collision protection frame (4) for protecting the propeller (3). The collision protection frame (4) has a positioning groove (5). The inner walls of the positioning groove (5) are connected to the outer side of the side support (2) through a guide limiting structure. The bottom of the side support (2) has a support (6). The end of the collision protection frame (4) is provided with a connecting piece (7) corresponding to the support (6). A shaft (8) is passed through the support (6) and the connecting piece (7). One end of the shaft (8) is provided with a fixing cap (9) by thread. The other end of the shaft (8) is hinged with a clamping handle (10). A clamping cap (11) is fitted on the shaft (8). One end of the clamping cap (11) cooperates with the clamping handle (10). One end of the fixing cap (9) and one end of the clamping cap (11) are respectively in close contact with the side of the support (6).

2. The UAV fuselage with anti-collision protection structure according to claim 1, characterized in that: The guide limiting structure includes a triangular groove (12) set in the inner wall of the positioning groove (5), and a triangular strip (13) that fits into the triangular groove (12) is provided on the outer side of the side support (2).

3. The UAV fuselage with anti-collision protection structure according to claim 1, characterized in that: The support (6) includes a pair of ribs (14) disposed at the bottom of the side support (2), the ribs (14) having a round hole (15), through which the shaft (8) passes.

4. The UAV fuselage with anti-collision protection structure according to claim 3, characterized in that: Both ends of the shaft (8) are provided with springs (16), and the fixing cap (9) and the clamping cap (11) are respectively attached to the springs (16); one side of the rib plate (14) and located at the circumference of the circular hole (15) are provided with a ring (17) for limiting the spring (16), and the fixing cap (9) and the clamping cap (11) are respectively attached to the end face of the ring (17).

5. The UAV fuselage with anti-collision protection structure according to claim 1, characterized in that: The outer surface of the fixing cap (9) has multiple concave arc surfaces (18).

6. The UAV fuselage with anti-collision protection structure according to claim 1, characterized in that: The side support (2) is provided with multiple hollowed-out grooves (19) evenly along its length.

7. The UAV fuselage with anti-collision protection structure according to claim 4, characterized in that: Both the fixing cap (9) and the pressing cap (11) are fitted with rubber rings (20) at their inner ends, and the rubber rings (20) are in contact with the end face of the ring body (17).

8. The unmanned aerial vehicle fuselage with anti-collision protection structure according to claim 1, characterized in that: The inner end of the fixing cap (9) and the inner end of the pressing cap (11) are both provided with an inner groove (21) for limiting the spring (16).

9. The unmanned aerial vehicle fuselage with an anti-collision protection structure according to claim 1, characterized in that: The outer end of the clamping handle (10) has a circular arc structure.

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