Unmanned aerial vehicle suitable for routing inspection in indoor narrow space

Abstract

The utility model discloses an unmanned aerial vehicle suitable for routing inspection in an indoor narrow space, which comprises an unmanned aerial vehicle host and four unmanned aerial vehicle arms arranged on the outer wall of the unmanned aerial vehicle host at equal intervals, the top ends of the four unmanned aerial vehicle arms are all provided with flying brushless motors, and the flying brushless motors are close to the outermost ends of the unmanned aerial vehicle arms. A propeller is arranged at the top end of a motor shaft of the flying brushless motor, the flying brushless motor can drive the propeller to rotate through the motor shaft, and a connecting type machine arm reinforcing and protecting device is additionally arranged on the four unmanned aerial vehicle machine arms of the unmanned aerial vehicle suitable for routing inspection in the indoor narrow space; the four unmanned aerial vehicle arms can be mutually connected through the vehicle arm reinforcing and protecting device, so that the four unmanned aerial vehicle arms are connected into a firmer whole through the vehicle arm reinforcing and protecting device, and the situation that the single unmanned aerial vehicle arm is loosened and cannot fly due to the influence of expansion or other factors in the flying process is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field related to unmanned aerial vehicles, and in particular relates to an unmanned aerial vehicle suitable for inspection in a narrow indoor space. Background Art

[0002] A drone is an aircraft that can fly autonomously. In response to the needs of inspections in small indoor spaces, a special drone has been designed that can inspect and obtain information in a limited space in a light and flexible manner. This drone suitable for inspections in small indoor spaces is small and light, and can flexibly shuttle through narrow spaces to achieve fast and efficient inspections of pipelines, equipment, building structures, etc. Drones can be equipped with high-definition cameras, sensors and other equipment, and through real-time transmission of data and images, help operators quickly understand the situation of the inspection object and achieve timely monitoring and early warning.

[0003] However, drones suitable for inspections in small indoor spaces need to avoid various obstacles during inspections because they need to fly in small indoor spaces. However, when users directly control the drone for flight inspections through the terminal, control errors are prone to occur, which can easily cause the drone to collide with obstacles. Because the drone's propeller is equipped with an anti-collision frame on the outside, the propeller will not be damaged during a collision. However, the impact force generated during the collision will act on the drone's arm, which can easily cause the connection between the drone's arm and the drone's mainframe to loosen and break, affecting the drone's normal and stable flight. Utility Model Content

[0004] The purpose of the utility model is to provide a drone suitable for inspections in small indoor spaces, so as to solve the problem proposed in the above-mentioned background technology that when the user directly controls the drone to fly for inspection through a terminal, control errors are likely to occur, which may easily cause the drone to collide with obstacles. Because the propeller of the drone is equipped with an anti-collision frame on the outside, the propeller will not be damaged during collision. However, the impact force generated during collision will act on the drone arm, which may easily cause the connection between the drone arm and the drone host to loosen and break.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drone suitable for inspection in a small indoor space, comprising a drone host and four drone arms equidistantly arranged on the outer wall of the drone host, the tops of the four drone arms are all provided with a brushless flight motor, and the brushless flight motor is close to the outermost end of the drone arm, the top of the motor shaft of the brushless flight motor is provided with a propeller, and the brushless flight motor can drive the propeller to rotate through the motor shaft, and an arm reinforcement and protection device is connected between the four drone arms;

[0006] The arm reinforcement and protection device includes a fixing sleeve, a reinforcement connecting rod and a connecting head. Four fixing sleeves are provided. The four fixing sleeves are respectively sleeved on the outside of four drone arms. The bottom end of the fixing sleeve is fixedly connected to the drone arm by an embedded screw. A connecting head is provided at the center of the top end of the four fixing sleeves. Reinforcement connecting rods are connected between the four connecting heads. The reinforcement connecting rods are fixedly connected to the connecting heads by embedded screws.

[0007] Preferably, the arm reinforcement and protection device also includes a top anti-collision plate and a buffer airbag. Four buffer airbags are provided, and the four buffer airbags are respectively fixed to the top outer walls of four reinforcing connecting rods by adhesive. The top outer wall of the buffer airbag is fixed with a top anti-collision plate by adhesive.

[0008] Preferably, the fixing sleeve and the reinforcing connecting rod are both made of aluminum alloy material, the reinforcing connecting rod is hollow inside, and the length of the buffer airbag is shorter than the length of the reinforcing connecting rod.

[0009] Preferably, an arc-shaped anti-collision frame is arranged on the outer side of the propeller, a plurality of anti-collision frame fixing frames are arranged on the lower side of the brushless flight motor, and the anti-collision frame fixing frame is fixed to the bottom of the drone arm, and the other end of the anti-collision frame fixing frame is fixedly connected to the arc-shaped anti-collision frame.

[0010] Preferably, a group of anti-seismic brackets are provided at the bottom of both left and right ends of the UAV host, and the bottom ends of the two groups of anti-seismic brackets are connected to landing gears, and the outside of the landing gears is also sleeved with cushioning cotton.

[0011] Preferably, a power switch is arranged at the center of the top of the drone host, a wireless receiver is arranged on the left side of the power switch, and a wireless transmitter is arranged on the right side of the power switch.

[0012] Preferably, electric angle adjusters are provided at both the front and rear ends of the drone host, and inspection cameras are provided on both of the electric angle adjusters, and the electric angle adjusters can drive the inspection cameras to adjust the angles up and down.

[0013] Compared with the prior art, the utility model provides a drone suitable for inspection in a small indoor space, which has the following beneficial effects:

[0014] The utility model adds a connected arm reinforcement and protection device to the four drone arms of the drone suitable for patrolling in a small indoor space. The arm reinforcement and protection device can connect the four drone arms to each other, so that the four drone arms are connected into a more solid whole through the device, so as to avoid the situation that a single drone arm becomes loose and cannot fly due to expansion or other factors during flight. In addition, the top of the arm reinforcement and protection device is also connected to a top anti-collision plate through a buffer airbag. When the drone flies in a small indoor space, the drone is prone to fly too high and hit the indoor ceiling wall. The top anti-collision plate and the buffer airbag can play an anti-collision and buffering role, so as to avoid the situation that the drone directly hits the ceiling wall and causes damage to the propeller and the main engine, thereby ensuring that the drone can fly normally indoors for patrolling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of a top-down plan structure of an unmanned aerial vehicle suitable for inspection in a small indoor space.

[0016] Figure 2 The figure is a schematic diagram of the planar structure of the main engine of the UAV of the present invention when viewed from above.

[0017] Figure 3 The utility model is a schematic diagram of the top plan structure of the machine arm reinforcement and protection device.

[0018] Figure 4 It is a schematic diagram of the side plan structure of the machine arm reinforcement and protection device of the utility model.

[0019] In the figure: 1. Arc-shaped anti-collision frame; 2. Brushless flight motor; 3. UAV arm; 4. UAV host; 5. Propeller; 6. Arm reinforcement and protection device; 7. Anti-seismic bracket; 8. Landing gear; 9. Wireless receiver; 10. Electric angle adjuster; 11. Inspection camera; 12. Power switch; 13. Wireless transmitter; 14. Fixing sleeve; 15. Reinforced connecting rod; 16. Top anti-collision plate; 17. Connector; 18. Buffer airbag. 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] The utility model provides Figure 1-4The drone shown is suitable for inspection in a narrow indoor space, comprising a drone host 4 and four drone arms 3 equidistantly arranged on the outer wall of the drone host 4, the tops of the four drone arms 3 are each provided with a flight brushless motor 2, and the flight brushless motor 2 is close to the outermost end of the drone arm 3, the top of the motor shaft of the flight brushless motor 2 is provided with a propeller 5, and the flight brushless motor 2 can drive the propeller 5 to rotate through the motor shaft, an arc-shaped anti-collision frame 1 is provided on the outside of the propeller 5, a plurality of anti-collision frame fixing frames are provided on the lower side of the flight brushless motor 2, and the anti-collision frame fixing frames are fixed to the bottom of the drone arm 3, and the other end of the anti-collision frame fixing frames is fixedly connected to the arc-shaped anti-collision frame 1, a group of anti-vibration brackets 7 are provided at the bottom of the left and right ends of the drone host 4, and the bottom ends of the two groups of anti-vibration brackets 7 are connected to landing gears 8, and the outside of the landing gear 8 is also sleeved with buffer cotton. A power switch 12 is provided at the center of the top of the machine 4, a wireless receiver 9 is provided on the left side of the power switch 12, and a wireless transmitter 13 is provided on the right side of the power switch 12. Electric angle adjusters 10 are provided at both ends of the UAV host 4, and inspection cameras 11 are provided on the two electric angle adjusters 10. The electric angle adjusters 10 can drive the inspection cameras 11 to adjust the angles up and down. When using the UAV suitable for inspection in a small indoor space, first, the entire UAV needs to be placed on the ground or on a desktop through the anti-seismic bracket 7 and the landing gear 8 at the bottom, and then the power switch 12 needs to be pressed to turn on the UAV host 4. At this time, it is necessary to connect wirelessly with the terminal through the wireless transmitter 13 on the UAV host 4, so that the terminal can control the flight status of the UAV in real time, and the terminal can also make the UAV perform flight inspection along the specified route according to the established setting program.

[0022] like Figure 1 and Figure 2 As shown, when the drone is flying for inspection, it is necessary to start the drone host 4 through the terminal. The drone host 4 will directly power the flight brushless motor 2 on the four drone arms 3, and can control the output power of the flight brushless motor 2 in real time. At this time, the flight brushless motor 2 will drive the propeller 5 to rotate at high speed through the motor shaft, and the lift generated by the propeller 5 can make the entire drone fly into the air indoors, and then control the drone to fly in a small indoor space through the terminal. During the flight, the drone host 4 will control the electric angle adjuster 10 to adjust the inspection cameras 11 at the front and rear ends, so that the inspection camera 11 can accurately perform video inspections on the areas that need to be monitored and inspected when the drone is flying normally, and when the drone flies in a small indoor space, the propeller 5 is easy to hit obstacles, but because the arc-shaped anti-collision frame 1 is fixed to the outside of the propeller 5 through the anti-collision frame fixing frame, the arc-shaped anti-collision frame 1 can replace the propeller 5 to collide with the obstacle, so it can protect the propeller 5 and prevent the propeller 5 from hitting the obstacle when rotating at high speed and causing rupture and damage.

[0023] like Figure 1 , Figure 3 and Figure 4 As shown, an arm reinforcement and protection device 6 is connected between the four UAV arms 3, and the arm reinforcement and protection device 6 includes a fixing sleeve 14, a reinforcement connecting rod 15 and a connecting head 17. Four fixing sleeves 14 are provided, and the four fixing sleeves 14 are respectively sleeved on the outside of the four UAV arms 3. The bottom end of the fixing sleeve 14 is fixedly connected to the UAV arm 3 by an embedded screw. A connecting head 17 is provided at the center of the top of the four fixing sleeves 14. A reinforcement connecting rod 15 is connected between the four connecting heads 17, and the reinforcement connecting rod 15 is fixedly connected to the connecting head 17 by an embedded screw. The arm reinforcement and protection device 6 also includes a top anti-collision sheet 16 and a buffer airbag 18. Four buffer airbags 18 are provided, and the four buffer airbags 18 are respectively glued and fixed to the top outer wall of the four reinforcement connecting rods 15 by adhesive. The top outer wall of the buffer airbag 18 is glued and fixed with a top anti-collision sheet 16 by adhesive. The fixing sleeve 14 and the reinforcement connecting rod 15 are made of aluminum alloy.

[0024] like Figure 1 , Figure 3 and Figure 4 As shown, the reinforcing connecting rod 15 is hollow inside, the length of the buffer airbag 18 is less than that of the reinforcing connecting rod 15, the four fixing sleeves 14 are respectively fixed on the outside of the four drone arms 3, and the four fixing sleeves 14 are fixed at the same position on the drone arms 3, so that the drone counterweight can be in a balanced state during flight, and the connecting heads 17 at the top of the four fixing sleeves 14 are connected to each other with a reinforcing connecting frame, which can connect the four drone arms 3 into a solid whole through the connecting heads 17 and the fixing sleeves 14, so that the drone arms 3 are fixed more securely, even if the drone arms hit an obstacle during flight, the reinforced connecting rods 15 connected to each other on the four drone arms 3 can help the drone arms 3 resist the impact force generated during the collision. This makes it possible for the drone arm 3 to not become loose or broken at the connection with the drone host 4 due to collision. When the drone flies in a small indoor space, if the drone flies at a high altitude, it will easily collide with the indoor ceiling wall. Because the top of the reinforced connecting rod 15 is fixed with a buffer airbag 18 and a top anti-collision plate 16, when the drone hits the indoor ceiling wall, the top anti-collision plate 16 will directly hit the top wall, and the impact force generated during the collision will act on the buffer airbag 18, and the buffer airbag 18 will buffer the impact force through the internal hollow structure, so that the impact force transmitted to the reinforced connecting rod 15 and the drone host 4 is extremely small, thereby being able to produce a buffering and anti-collision effect on the top of the drone, making the entire drone safer and more efficient during flight.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An unmanned aerial vehicle suitable for inspection in a narrow indoor space, comprising an unmanned aerial vehicle host (4) and four unmanned aerial vehicle arms (3) equidistantly arranged on the outer wall of the unmanned aerial vehicle host (4), the tops of the four unmanned aerial vehicle arms (3) are all provided with a flying brushless motor (2), and the flying brushless motor (2) is close to the outermost end of the unmanned aerial vehicle arm (3), the top of the motor shaft of the flying brushless motor (2) is provided with a propeller (5), and the flying brushless motor (2) can drive the propeller (5) to rotate through the motor shaft, characterized in that: An arm reinforcement and protection device (6) is connected between the four drone arms (3); The arm reinforcement and protection device (6) comprises a fixing sleeve (14), a reinforcement connecting rod (15) and a connecting head (17). Four fixing sleeves (14) are provided. The four fixing sleeves (14) are respectively sleeved on the outside of four unmanned aerial vehicle arms (3). The bottom end of the fixing sleeve (14) is fixedly connected to the unmanned aerial vehicle arm (3) by means of embedded screws. A connecting head (17) is provided at the center of the top end of the four fixing sleeves (14). The four connecting heads (17) are connected with reinforcement connecting rods (15). The reinforcement connecting rods (15) are fixedly connected to the connecting heads (17) by means of embedded screws.

2. The drone suitable for inspection in a narrow indoor space according to claim 1, characterized in that: The machine arm reinforcement and protection device (6) also includes a top anti-collision plate (16) and a buffer airbag (18). Four buffer airbags (18) are provided. The four buffer airbags (18) are respectively glued and fixed to the top outer walls of the four reinforcement connecting rods (15) by adhesive. The top outer wall of the buffer airbag (18) is glued and fixed with the top anti-collision plate (16) by adhesive.

3. The drone suitable for inspection in a narrow indoor space according to claim 2, characterized in that: The fixing sleeve (14) and the reinforcing connecting rod (15) are both made of aluminum alloy material; the reinforcing connecting rod (15) is hollow inside; and the length of the buffer airbag (18) is shorter than the length of the reinforcing connecting rod (15).

4. The drone suitable for inspection in a narrow indoor space according to claim 1, characterized in that: An arc-shaped anti-collision frame (1) is arranged on the outer side of the propeller (5), a plurality of anti-collision frame fixing frames are arranged on the lower side of the brushless flight motor (2), and the anti-collision frame fixing frames are fixed to the bottom of the drone arm (3), and the other end of the anti-collision frame fixing frames is fixedly connected to the arc-shaped anti-collision frame (1).

5. The drone suitable for inspection in a narrow indoor space according to claim 1, characterized in that: A group of anti-vibration brackets (7) are provided at the bottom of both left and right ends of the drone mainframe (4), and the bottom ends of the two groups of anti-vibration brackets (7) are connected to landing gears (8), and the outside of the landing gears (8) is also sleeved with cushioning cotton.

6. The drone suitable for inspection in a narrow indoor space according to claim 1, characterized in that: A power switch (12) is arranged at the center of the top of the drone host (4), a wireless receiver (9) is arranged on the left side of the power switch (12), and a wireless transmitter (13) is arranged on the right side of the power switch (12).

7. The drone suitable for inspection in a narrow indoor space according to claim 1, characterized in that: The front and rear ends of the drone host (4) are both provided with electric angle adjusters (10), and inspection cameras (11) are both provided on the two electric angle adjusters (10).

8. The drone suitable for inspection in a narrow indoor space according to claim 7, characterized in that: The electric angle adjuster (10) can drive the inspection camera (11) to adjust the angle up and down.

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