A drone with protective equipment

Abstract

The present application relates to a drone with protective equipment, which relates to the field of drone fall protection. The drone comprises a drone body and two tripods. The bottom of each tripod is provided with an airbag box, and the airbag box is provided with a chamber for placing the airbag. The airbag has a folded state and an inflated state. High-pressure gas cylinders storing high-pressure gas are provided at both ends of the airbag box. The high-pressure gas cylinders have openable and closable outlets connected to the airbags. A winch is provided on the top of the drone body. The steel cable of the winch passes through the arm and connects to the top wall of the airbag. A third magnet is provided at the end of the airbag near the arm, and a fourth magnet is provided on the arm that is magnetically attracted to the third magnet. The present application has the effect of using the airbag to wrap the drone body, wings, and arms, providing cushioning when falling to the ground, thereby reducing the probability of damage.

Description

Technical Field

[0001] The present application relates to the field of drone fall protection, and in particular to a drone with protective equipment. Background Art

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control and self-contained programmable devices. Drone technology is rapidly developing, and UAV systems are diverse, versatile, and distinctive. However, since drones are remotely controlled during flight, they often have significant blind spots and operational difficulties. Consequently, in actual operation, drones often lose balance due to collisions with small branches, power lines, or obstacles. These collisions can also damage propellers, preventing them from regaining balance and causing them to crash. These crashes often result in the entire drone being shattered beyond repair, resulting in significant financial losses for the user.

[0003] Therefore, it is necessary to propose a drone with protective equipment to avoid the drone from falling and directly contacting the ground, thereby causing damage to the drone. Summary of the Invention

[0004] In order to solve the above problems, the present application provides a drone with protective equipment.

[0005] The present application provides a drone with protective equipment that adopts the following technical solutions:

[0006] A drone with protective equipment comprises a drone body and two tripods symmetrically arranged at the bottom of the drone body, an airbag box being provided at the bottom of each of the tripods, a chamber for accommodating an airbag being provided within the airbag box, openings being provided on the side walls and bottom wall of the airbag box, and a blocking door being hingedly connected to the airbag box, the blocking door being magnetically connected to the opening by a first magnet and a second magnet on the airbag box;

[0007] The airbag has a folded state and an inflated state. When the airbag is in the folded state, the airbag is at least partially folded and placed in the accommodating cavity. High-pressure gas cylinders storing high-pressure gas are provided at both ends of the airbag box. The high-pressure gas cylinders have gas outlets communicating with the airbag. The high-pressure gas cylinders are provided with a controller for controlling the opening and closing of the gas outlets.

[0008] A winch is provided on the top of the drone body, and a steel cable of the winch passes through an arm and is connected to the top wall of the airbag. A through hole for the steel cable to pass through is provided on the top wall of the airbag box, and the through hole is connected to the opening;

[0009] The airbag is provided with a third magnet at the end close to the arm, and the arm is provided with a fourth magnet magnetically attracted to the third magnet;

[0010] The drone body is provided with a dual-mode sensor array, which triggers the controller to control the high-pressure gas cylinder to deflate when it detects that the free-fall acceleration of the drone body is greater than a preset value and the height from the ground is less than a preset value.

[0011] Furthermore, the airbag includes a main air chamber and a secondary air chamber, the main air chamber and the secondary air chamber are connected by a connecting passage, the main air chamber is provided with an air inlet, the air inlet of the main air chamber is connected to the air outlet of the high-pressure gas cylinder, the main air chamber and the cavity wall of the accommodating cavity are fixedly connected, when the main air chamber and the secondary air chamber are both in a folded state, the air outlet of the high-pressure gas cylinder is in a closed state, and when the main air chamber and the secondary air chamber are both in an inflated state, the air outlet of the high-pressure gas cylinder is in an open state, the high-pressure gas enters the main air chamber from the air outlet of the high-pressure gas cylinder through the air inlet of the main air chamber, and then enters the secondary air chamber from the main air chamber through the connecting passage, the inflated main air chamber and the secondary air chamber break through the blocking door and extend out of the airbag box.

[0012] Furthermore, the length L1 of the side wall of the connecting channel close to the blade of the drone body is shorter than the length L2 of the side wall away from the blade. When the main air chamber and the auxiliary air chamber are inflated, due to the unequal lengths of L1 and L2, a "C"-shaped protective tube is formed between the auxiliary air chamber and the main air chamber to wrap the blade and the arm.

[0013] Furthermore, the steel cable of the winch is fixedly connected to the top wall of the main air chamber, and a guide roller is provided on the machine arm. The guide roller is rotatably connected to the machine arm through a rotating seat, and the guide roller is provided with an annular groove for accommodating the steel cable.

[0014] Furthermore, a one-way air valve from the main air chamber to the auxiliary air chamber is provided in the communication channel.

[0015] Furthermore, it also includes a mooring box set on the ground for powering the drone body, and the side wall of the mooring box is provided with an outlet for the mooring cable, and the end of the mooring cable is provided with a high-voltage output connector, and the high-voltage output connector is used to connect to the socket on the bottom wall of the drone body.

[0016] Furthermore, a slip ring is provided between the high-voltage output connector and the tethered cable, the stator of the slip ring and the bottom wall of the drone body are relatively stationary, and the rotor of the slip ring and the tethered cable are relatively stationary.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] The dual-mode sensor array monitors the drone's attitude in real time. When it detects that the free-fall acceleration is greater than a preset value and the height above the ground is less than a preset value, the controller triggers the airbag to inflate. This rapid response reduces the probability of false triggering, effectively reduces the impact of a crash, and protects the core components of the drone.

[0019] The main and auxiliary air chambers form a "C"-shaped protective tube. The main chamber absorbs vertical impacts, while the auxiliary chamber wraps the blades and arms to minimize secondary damage caused by blade breakage.

[0020] The blocking door uses a magnetic closure design with the first and second magnets. It can be opened instantly when the high-pressure gas is inflated, minimizing mechanical jamming. The third and fourth magnets facilitate the close fit of the auxiliary air chamber with the machine arm after deployment to prevent displacement.

[0021] Tethered cables connected via slip rings provide uninterrupted power supply without affecting the airbag deployment path, resolving the compatibility issues between traditional battery life and emergency protection systems.

[0022] The winch cable is connected to the top of the airbag. After inflation, the cable is automatically tightened to prevent the airbag from over-expanding and detaching from the drone body, allowing the airbag to successfully wrap around the blades and arms. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a drone with protective equipment in an embodiment of the present application.

[0024] Figure 2 This is a schematic diagram of the overall structure used to illustrate the connection of the high-voltage output connector in an embodiment of the present application.

[0025] Figure 3 This is a schematic diagram of the overall structure of the airbag during inflation in the embodiment of the present application.

[0026] Explanation of the accompanying symbols: 1. UAV body; 2. Tripod; 3. Airbag; 31. Main air chamber; 32. Auxiliary air chamber; 4. Accommodation chamber; 5. Opening; 6. Blocking door; 7. First magnet; 8. Second magnet; 9. High-pressure gas cylinder; 11. Winch; 12. Steel cable; 13. Arm; 14. Blade; 15. Perforation; 16. Waist-shaped hole; 17. Annular groove; 18. Guide roller; 19. Mooring box; 20. Mooring cable; 21. Outlet; 22. High-voltage output connector; 23. Slip ring. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3 This application is described in further detail.

[0028] An embodiment of the present application discloses a drone with protective equipment.

[0029] Reference Figure 1 and Figure 3 A drone with protective equipment includes a drone body 1 and two tripods 2 symmetrically arranged at the bottom of the drone body 1, an airbag box is provided at the bottom of the two tripods 2, a receiving cavity 4 for placing an airbag 3 is provided in the airbag box, the side wall and the bottom wall of the airbag box are provided with openings 5, and a blocking door 6 is hinged on the airbag box. In this embodiment, the blocking door 6 is arranged in an "L" shape, one end of the blocking door 6 is hinged to the airbag box through a hinge seat, and the other end of the blocking door 6 away from the hinge seat is provided with a first magnet 7, and a second magnet 8 is provided on the side wall of the airbag box. The first magnet 7 and the second magnet 8 are magnetically connected to block the opening 5, and the extension direction of the first magnet 7 and the second magnet 8 is parallel to the hinge axis of the blocking door 6.

[0030] Reference Figure 2 and Figure 3 The airbag 3 has a folded state and an inflated state. When the airbag 3 is in the folded state, the airbag 3 is at least partially folded and placed in the accommodating cavity 4. High-pressure gas cylinders 9 storing high-pressure gas are provided at both ends of the airbag box. The high-pressure gas cylinder 9 has an outlet connected to the airbag 3. A controller for controlling the opening and closing of the outlet is provided on the high-pressure gas cylinder 9. A protective cover is provided outside the high-pressure gas cylinder 9.

[0031] The airbag 3 includes a main air chamber 31 and a secondary air chamber 32, which are connected by a connecting passage. A one-way air valve from the main air chamber 31 to the secondary air chamber 32 is provided in the connecting passage. An air inlet is provided on the main air chamber 31, and the air inlet of the main air chamber 31 is connected to the air outlet of the high-pressure gas cylinder 9. The main air chamber 31 is fixedly connected to the cavity wall of the accommodating cavity 4. When the main air chamber 31 and the secondary air chamber 32 are both in a folded state, the air outlet of the high-pressure gas cylinder 9 is in a closed state. When the main air chamber 31 and the secondary air chamber 32 are both in an inflated state, the air outlet of the high-pressure gas cylinder 9 is in an open state. The high-pressure gas enters the main air chamber 31 from the air outlet of the high-pressure gas cylinder 9 through the air inlet of the main air chamber 31, and then enters the secondary air chamber 32 from the main air chamber 31 through the one-way air valve. The inflated main air chamber 31 and secondary air chamber 32 break through the blocking door 6 and extend out of the airbag box.

[0032] The length L1 of the side wall of the connecting channel close to the blade 14 of the drone body 1 is smaller than the length L2 of the side wall away from the blade 14. When the main air chamber 31 and the auxiliary air chamber 32 are inflated, due to the inequality between the length of L1 and the length of L2, a "C"-shaped protective cylinder for wrapping the blade 14 and the arm 13 is formed between the auxiliary air chamber 32 and the main air chamber 31. A third magnet is provided at the end of the auxiliary air chamber 32 away from the main air chamber 31, and a fourth magnet is provided on the arm 13 that is magnetically attracted to the third magnet.

[0033] The blocking door 6 adopts a magnetic closing design of the first magnet 7 and the second magnet 8, which can be opened instantly when the high-pressure gas is inflated to avoid mechanical jamming as much as possible; the adsorption of the third and fourth magnets is conducive to the auxiliary air chamber 32 to fit closely with the machine arm 13 after expansion to prevent displacement.

[0034] Reference Figure 2 A winch 11 is provided on the top of the drone body 1. In this embodiment, two groups of winches 11 are provided, and each group of winches 11 corresponds to two groups of arms 13 and two groups of blades 14. Two steel cables 12 extend from the winch 11. The two steel cables 12 correspond to the two groups of arms 13 one by one. A waist-shaped hole 16 for the steel cables 12 to pass through is provided on the arm 13. After passing through the waist-shaped hole 16, the steel cable 12 of the winch 11 is connected to the top wall of the main air chamber 31 of the airbag 3. A through hole 15 for the steel cable 12 to pass through is provided on the top wall of the airbag box. The through hole 15 is connected to the opening 5. A guide roller 18 is provided on the arm 13. The guide roller 18 is rotatably connected to the arm 13 through a rotating seat. The guide roller 18 is provided with an annular groove 17 for accommodating the steel cable 12.

[0035] Reference Figure 1 A mooring box 19 for supplying power to the drone body 1 is provided on the ground. An outlet 21 for a mooring cable 20 is provided on the side wall of the mooring box 19. A high-voltage output connector 22 is provided at the end of the mooring cable 20. The high-voltage output connector 22 is used to connect to the socket on the bottom wall of the drone body 1. A slip ring 23 is provided between the high-voltage output connector 22 and the mooring cable 20. The stator of the slip ring 23 and the bottom wall of the drone body 1 are relatively stationary, and the rotor of the slip ring 23 and the mooring cable 20 are relatively stationary.

[0036] The tethered cable 20 connected by the slip ring 23 realizes uninterrupted power supply without affecting the airbag deployment path, solving the compatibility problem between traditional battery life and emergency protection system.

[0037] The drone body 1 is provided with a dual-modal sensor array, which includes an acceleration sensor and a laser ranging sensor for measuring the distance between the drone body 1 and the ground. When it is detected that the free fall acceleration of the drone body 1 is greater than 3G and the height from the ground is less than m, the high-pressure gas cylinder 9 is triggered to deflate.

[0038] The implementation principle of a drone with protective equipment in an embodiment of the present application is as follows: when a free fall acceleration greater than 3g and a height from the ground less than m is detected, the high-pressure gas cylinder 9 is triggered to deflate. When the compressed air flows from the high-pressure gas cylinder 9 to the main air chamber 31 and then from the main air chamber 31 to the auxiliary air chamber 32 through the connecting channel, the winch 11 drives the steel cable 12 to contract, and the steel cable 12 drives the main air chamber 31 to move toward the arm 13. Since the side wall length L1 of the connecting channel close to the blade 14 of the drone body 1 is shorter than the side wall length L2 away from the blade 14, a "C"-shaped protective cylinder for wrapping the blade 14 and the arm 13 is formed between the auxiliary air chamber 32 and the main air chamber 31. The auxiliary air chamber 32 protects the arm 13 and the folded blade 14 by magnetic attraction using the third magnet and the fourth magnet. The main air chamber 31 absorbs vertical impact, and the auxiliary air chamber 32 wraps the blade 14 and the arm 13 to avoid secondary damage caused by the blade 14 breaking as much as possible.

[0039] The steel cable 12 of the winch 11 is connected to the top of the airbag 3. After inflation, the steel cable 12 is automatically tightened to prevent the airbag 3 from over-expanding and detaching from the drone body 1, so that the airbag 3 can successfully wrap the blades 14 and the arm 13.

[0040] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A drone with protective equipment, comprising a drone body (1) and two tripods (2) symmetrically arranged at the bottom of the drone body (1), characterized in that: An airbag box is provided at the bottom of each of the two tripods (2), a receiving cavity (4) for accommodating an airbag (3) is provided in the airbag box, an opening (5) is provided on the side wall and the bottom wall of the airbag box, a blocking door (6) is hingedly connected to the airbag box, and the blocking door (6) is magnetically connected to the second magnet (8) on the airbag box via a first magnet (7) to block the opening (5); The airbag (3) has a folded state and an inflated state. When the airbag (3) is in the folded state, the airbag (3) is at least partially folded and placed in the accommodating cavity (4). High-pressure gas cylinders (9) storing high-pressure gas are provided at both ends of the airbag box. The high-pressure gas cylinders (9) have a gas outlet connected to the airbag (3). A controller for controlling the opening and closing of the gas outlet is provided on the high-pressure gas cylinder (9). A winch (11) is provided on the top of the drone body (1), a steel cable (12) of the winch (11) passes through an arm (13) and is connected to the top wall of the airbag (3), a through hole (15) for the steel cable (12) to pass through is provided on the top wall of the airbag box, and the through hole (15) is communicated with the opening (5); The airbag (3) is provided with a third magnet at an end close to the arm (13), and the arm (13) is provided with a fourth magnet magnetically attracted to the third magnet; The drone body (1) is provided with a dual-mode sensor array, which triggers the controller to control the high-pressure gas cylinder (9) to deflate when detecting that the free-fall acceleration of the drone body (1) is greater than a preset value and the height above the ground is less than a preset value; The airbag (3) comprises a main air chamber (31) and a secondary air chamber (32), wherein the main air chamber (31) and the secondary air chamber (32) are connected via a communication channel, an air inlet is provided on the main air chamber (31), the air inlet of the main air chamber (31) is connected to the air outlet of the high-pressure gas cylinder (9), the main air chamber (31) is fixedly connected to the cavity wall of the accommodating cavity (4), and when the main air chamber (31) and the secondary air chamber (32) are both in a folded state, the air outlet of the high-pressure gas cylinder (9) is in a closed state. In the closed state, when the main air chamber (31) and the auxiliary air chamber (32) are both in an inflated state, the gas outlet of the high-pressure gas cylinder (9) is in an open state, and the high-pressure gas enters the main air chamber (31) from the gas outlet of the high-pressure gas cylinder (9) through the gas inlet of the main air chamber (31), and then enters the auxiliary air chamber (32) from the main air chamber (31) through the connecting channel. The inflated main air chamber (31) and the auxiliary air chamber (32) break open the blocking door (6) and extend out of the airbag box; The length L1 of the side wall of the communication channel close to the blade (14) of the drone body (1) is shorter than the length L2 of the side wall away from the blade (14). When the main air chamber (31) and the auxiliary air chamber (32) are inflated, due to the difference in length between L1 and L2, a "C"-shaped protective cylinder for wrapping the blade (14) and the machine arm (13) is formed between the auxiliary air chamber (32) and the main air chamber (31).

2. The drone with protective equipment according to claim 1, characterized in that: The extension direction of the first magnet (7) and the second magnet (8) is parallel to the hinge axis of the blocking door (6).

3. The drone with protective equipment according to claim 1, characterized in that: The steel cable (12) of the hoist (11) is fixedly connected to the top wall of the main air chamber (31); a guide roller (18) is provided on the machine arm (13); the guide roller (18) is rotatably connected to the machine arm (13) through a rotating seat; and an annular groove (17) is provided on the guide roller (18) for accommodating the steel cable (12).

4. The drone with protective equipment according to claim 1, characterized in that: A one-way air valve from the main air chamber (31) to the auxiliary air chamber (32) is provided in the communication channel.

5. The drone with protective equipment according to claim 1, characterized in that: The invention also includes a mooring box (19) arranged on the ground for supplying power to the drone body (1), wherein a mooring cable (20) outlet (21) is provided on the side wall of the mooring box (19), and a high-voltage output connector (22) is provided at the end of the mooring cable (20), and the high-voltage output connector (22) is used to connect to the socket on the bottom wall of the drone body (1).

6. The drone with protective equipment according to claim 5, characterized in that: A slip ring (23) is provided between the high-voltage output connector (22) and the mooring cable (20); the stator of the slip ring (23) and the bottom wall of the drone body (1) are relatively stationary; and the rotor of the slip ring (23) and the mooring cable (20) are relatively stationary.

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