Unmanned aerial vehicle for fire fighting

Abstract

The utility model discloses a fire extinguishing unmanned aerial vehicle, which comprises an unmanned aerial vehicle main body, the bottom of the unmanned aerial vehicle main body is provided with a bomb hanging cylinder and a driving mechanism, the side surface of the bomb hanging cylinder is provided with a bomb shifting mechanism, the driving mechanism comprises a heat shield, a motor, a cam and a lithium battery, and the driving mechanism is fixedly arranged in the heat shield. The bomb hanging barrel is detachably installed at the bottom of the heat shield, the bomb poking mechanism comprises a shell, a transmission rod, a poking rod and a first spring, a sliding hole is formed in the top of the shell, the transmission rod is installed in the sliding hole and elastically connected with the shell through the first spring, and the poking rod is installed on the side face of the transmission rod. The bomb dropping device has the advantage of being capable of continuously dropping bombs in different areas, and solves the problems that in the prior art, when an unmanned aerial vehicle throws fire extinguishing bombs, bombs cannot be accurately dropped in batches, fire extinguishing bomb resources are wasted, and meanwhile the fire extinguishing efficiency is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a unmanned aerial vehicle for fire fighting. Background Art

[0002] With the acceleration of modern urbanization, disasters such as high-rise building fires and forest fires have occurred frequently, which has put forward higher requirements for fire safety. Traditional firefighting methods, such as ground fire trucks and manual firefighting teams, often face problems such as slow response speed, difficult operation, and high risk when facing complex terrain, long-distance fire sources, or fires under extreme conditions. In recent years, the rapid development of drone technology has provided new solutions for firefighting and rescue, especially in early fire detection, on-site monitoring, and auxiliary firefighting.

[0003] However, existing firefighting drones are mainly focused on aerial reconnaissance, fire monitoring and auxiliary guidance. The technology for directly participating in firefighting operations, especially carrying and accurately dropping fire-extinguishing bombs, is still immature. In the existing technology, when a drone carries multiple fire-extinguishing bombs, they can only drop them at the same time, resulting in a large overlap of the fire-extinguishing range of the fire-extinguishing bombs, which wastes resources and affects the efficiency of fire-fighting. Therefore, a fire-fighting drone is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a fire-fighting drone, which has the advantage of being able to drop bombs continuously in different areas, and solves the problem in the prior art that drones cannot drop fire-fighting bombs accurately in batches, resulting in a waste of fire-fighting bomb resources and affecting the fire-fighting efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire-fighting drone, comprising a drone body, a bomb hanging cylinder and a driving mechanism are arranged at the bottom of the drone body, and a bomb ejection mechanism is arranged on the side of the bomb hanging cylinder;

[0006] A heat shield is provided at the bottom of the UAV body, the driving mechanism is fixedly installed in the heat shield, the bomb hanging tube is detachably installed at the bottom of the heat shield, the bomb ejection mechanism includes a shell, a transmission rod, a ejection rod, and a first spring, a sliding hole is provided at the top of the shell, the transmission rod is installed in the sliding hole and is elastically connected to the shell through the first spring, and the ejection rod is installed on the side of the transmission rod.

[0007] As a preferred fire-fighting drone of the utility model, a discharge port is provided at the bottom of the bomb hanging barrel, the inner diameter of the discharge port is first reduced and then expanded from top to bottom to form a limit ring protruding inward, and the side wall of the discharge port is provided with an expansion joint.

[0008] As a preferred fire-fighting drone of the utility model, a threaded column is provided on the top of the bomb hanging barrel, a threaded cap for rotational connection is provided on the bottom of the heat insulation cover, a positioning groove is provided on the threaded column, and the bomb hanging barrel and the heat insulation cover are threadedly connected through the threaded column and the threaded cap.

[0009] As a preferred fire-fighting drone of the utility model, a slide groove is provided on the side of the bomb hanging barrel, and the lever is inserted into the slide groove and slidably connected thereto.

[0010] As a preferred fire-fighting drone of the utility model, a rotating shaft is provided on the side of the lever, a torsion spring is provided on the rotating shaft, the lever and the transmission rod are elastically rotatably connected through the rotating shaft and the torsion spring, and a limiting block is provided on the side of the transmission rod.

[0011] As a preferred fire-fighting drone of the utility model, the driving mechanism includes a motor, a cam, a lithium battery and a WIFI module. The cam is installed on the output shaft of the motor, and the bottom of the cam is connected to the top of the transmission rod in sliding contact.

[0012] As a preferred embodiment of the fire-fighting drone of the utility model, a finger groove is provided on the side of the shell, and the finger groove is an arc-shaped groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model increases the loading capacity of fire extinguishing bombs and realizes the automatic throwing function of fire extinguishing bombs through the design of the bomb hanging tube, driving mechanism and bomb ejecting mechanism. The structure of the limit ring and the expansion joint is used to ensure that the fire extinguishing bombs are stably stored during the flight. Through the finely designed bomb ejecting mechanism and driving system, the UAV can release the fire extinguishing bombs one by one as needed, avoiding the simultaneous delivery of fire extinguishing bombs in the target area, resulting in overlapping fire extinguishing ranges, and ensuring that each fire extinguishing bomb can play the maximum role, which not only improves the use efficiency of the fire extinguishing agent, but also reduces the waste of resources.

[0015] 2. The utility model can accurately control the release time of the fire extinguishing bomb through the linkage of the motor, cam and transmission mechanism. In addition, the downward pressure exerted by the driving mechanism on the fire extinguishing bomb increases the initial falling speed of the fire extinguishing bomb, which helps to overcome the interference of external factors such as wind resistance, so that the fire extinguishing bomb can hit the predetermined target area more accurately. The high-precision projection not only improves the fire extinguishing efficiency, but also helps to implement accurate fire extinguishing in complex environments.

[0016] 3. The utility model provides a detachable connection between the bomb hanging barrel and the heat shield through a threaded column and a threaded cap, which is not only convenient for quick loading and maintenance, but also the combined design of the lever, the slide groove, the rotating shaft and the torsion spring simplifies the loading process of the fire extinguishing bomb. The operator can complete quick loading through simple manual operation. At the same time, the design of the finger groove increases the gripping space, making it more convenient to manually press down the lever to release the limit, thereby improving the convenience and efficiency of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the coordinated state of the driving mechanism and the bullet ejecting mechanism of the utility model;

[0019] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 For the utility model Figure 2 Enlarged view of point B in the middle;

[0021] Figure 5 It is a schematic diagram of the bullet hanging barrel structure of the utility model.

[0022] In the figure: 1. UAV body; 2. bomb hanging tube; 201. threaded column; 2011. positioning groove; 202. discharge port; 203. limit ring; 204. expansion joint; 205. slide groove; 3. bullet ejection mechanism; 301. shell; 3011. slide hole; 302. transmission rod; 303. first spring; 304. ejector rod; 3041. rotating shaft; 305. torsion spring; 306. limit block; 307. finger groove; 4. driving mechanism; 401. heat shield; 402. motor; 403. cam; 404. lithium battery; 405. threaded cap. DETAILED DESCRIPTION

[0023] See also Figure 1-Figure 5 A fire-fighting drone comprises a drone body 1, a bomb hanging cylinder 2 and a driving mechanism 4 are arranged at the bottom of the drone body 1, and a bomb ejecting mechanism 3 is arranged on the side of the bomb hanging cylinder 2;

[0024] The driving mechanism 4 includes a heat insulation cover 401, a motor 402, a cam 403 and a lithium battery 404. The driving mechanism 4 is fixedly installed in the heat insulation cover 401. The bullet hanging tube 2 is detachably installed at the bottom of the heat insulation cover 401. The bullet removal mechanism 3 includes a shell 301, a transmission rod 302, a lever 304, and a first spring 303. A sliding hole 3011 is provided on the top of the shell 301. The transmission rod 302 is installed in the sliding hole 3011 and is elastically connected to the shell 301 through the first spring 303. The lever 304 is installed on the side of the transmission rod 302.

[0025] Furthermore, a discharge port 202 is provided at the bottom of the bullet hanging barrel 2 , and the inner diameter of the discharge port 202 is first reduced and then expanded from top to bottom to form a limit ring 203 protruding inwardly, and a side wall of the discharge port 202 is provided with an expansion joint 204 .

[0026] Through the expansion joint 204, the fire extinguishing bomb can be loaded into the bomb hanging tube 2 from the bottom of the bomb hanging tube 2 under the action of external force. Under the action of the limit ring 203, the fire extinguishing bomb cannot be discharged from the bomb hanging tube 2 by its own gravity, thereby achieving the purpose of drone bomb hanging.

[0027] Furthermore, a threaded column 201 is provided on the top of the bullet hanging barrel 2, and a rotatably connected threaded cap 405 is provided on the bottom of the heat insulation cover 401. A positioning groove 2011 is provided on the threaded column 201 to position the installation angle of the bullet hanging barrel 2 to ensure that the transmission rod 302 and the cam 403 can be accurately matched. The bullet hanging barrel 2 and the heat insulation cover 401 are threadedly connected through the threaded column 201 and the threaded cap 405.

[0028] The threaded connection structure allows the bomb hanging barrel 2 to be disassembled, so that it can be used as an ordinary drone when fire-fighting operations are not required, and the bomb hanging barrel 2 is convenient to replace. Fire-fighting bombs can be loaded on the ground. After the fire-fighting operation is completed, the bomb hanging barrel 2 can be replaced, thereby improving the loading efficiency.

[0029] Furthermore, a slide groove 205 is provided on the side of the bullet hanging tube 2, and the lever 304 is inserted into the slide groove 205 and slidably connected thereto.

[0030] The lever 304 can be moved up and down along the slide slot 205, so that the fire extinguishing bomb can be pushed downward from the bomb hanging tube 2, so that the fire extinguishing bomb can be thrown and launched to extinguish the fire.

[0031] Furthermore, a rotating shaft 3041 is provided on the side of the lever 304 , a torsion spring 305 is provided on the rotating shaft 3041 , the lever 304 and the transmission rod 302 are elastically rotatably connected through the rotating shaft 3041 and the torsion spring 305 , and a limiting block 306 is provided on the side of the transmission rod 302 .

[0032] Furthermore, the driving mechanism 4 includes a cam 403 installed on the output shaft of the motor 402 , the bottom of the cam 403 is connected to the top of the transmission rod 302 in sliding contact, and a WIFI module is arranged in the heat insulation cover 401 .

[0033] The motor 402 drives the cam 403 to rotate, thereby driving the transmission rod 302 to move up and down, and driving the lever 304 to move up and down. When the lever 304 moves downward, it cannot flip upward due to the action of the limit block 306, thereby pressing the fire extinguishing bomb at the bottom out. When the lever 304 moves upward, the fire extinguishing bomb squeezes the lever 304 and flips it downward, so that it can slide to the upper end of the fire extinguishing bomb, which is convenient for the next bombing.

[0034] Furthermore, a finger groove 307 is provided on the side of the housing 301, and the finger groove 307 is an arc-shaped groove.

[0035] The thumb presses the lever 304 from top to bottom and presses it into the arc-shaped finger groove 307, so that the lever 304 releases the limit of the fire extinguishing bomb, thereby facilitating the loading of the hanging bomb tube 2 and avoiding pinching of fingers during loading.

[0036] When the device is in use, first, press the lever 304 downward to the finger groove 307, load the AFO dry powder fire extinguishing bomb through the discharge port 202, confirm that the fire extinguishing bomb is firmly placed and will not fall off by itself, release the lever 304, it rebounds to the upper end of the end fire extinguishing end, align the transmission rod 302 with the cam 403, and the top of the bomb hanging cylinder 2 is connected with the threaded cap 405 at the bottom of the heat insulation cover 401 through the threaded column 201, and rotate until it is firmly locked to ensure that the bomb hanging cylinder 2 is firmly Installation, after installation, the drone flies to the upper end of the fire point, and through the WIFI module, remotely controls the motor 402 to rotate one circle, so that the motor 402 drives the cam 403 to rotate, so that the telescopic rod completes an up and down reciprocating motion. During the descent process, the lever 304 presses out the fire extinguishing bomb at the bottom under the action of the limit block 306. During the ascent process, the lever 304 flips downward, and then rebounds to the top of the bottom fire extinguishing bomb under the action of the torsion spring 305, which is convenient for throwing the fire extinguishing bomb next time.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fire-fighting drone, comprising a drone body (1), characterized in that: A bomb hanging cylinder (2) and a driving mechanism (4) are arranged at the bottom of the drone body (1), and a bomb ejecting mechanism (3) is arranged on the side of the bomb hanging cylinder (2); The driving mechanism (4) comprises a heat insulation cover (401), a motor (402), a cam (403) and a lithium battery (404); the driving mechanism (4) is fixedly mounted in the heat insulation cover (401); the bullet hanging cylinder (2) is detachably mounted on the bottom of the heat insulation cover (401); the bullet removing mechanism (3) comprises a shell (301), a transmission rod (302), a lever (304) and a first spring (303); a sliding hole (3011) is provided on the top of the shell (301); the transmission rod (302) is mounted in the sliding hole (3011) and is elastically connected to the shell (301) via the first spring (303); and the lever (304) is mounted on the side of the transmission rod (302).

2. A fire-fighting drone as claimed in claim 1, characterized in that: The bottom of the bullet hanging cylinder (2) is provided with a discharge port (202), the inner diameter of which is reduced from top to bottom and then expanded to form a limit ring (203) protruding inwardly, and the side wall of the discharge port (202) is provided with an expansion joint (204).

3. A fire-fighting drone as claimed in claim 1, characterized in that: The top of the bomb hanging barrel (2) is provided with a threaded column (201), the bottom of the heat insulation cover (401) is provided with a rotatably connected threaded cap (405), the threaded column (201) is provided with a positioning groove (2011), and the bomb hanging barrel (2) and the heat insulation cover (401) are threadedly connected through the threaded column (201) and the threaded cap (405).

4. A fire-fighting drone as claimed in claim 1, characterized in that: A sliding groove (205) is provided on the side of the bullet hanging cylinder (2), and the shifting rod (304) is inserted into the sliding groove (205) and slidably connected thereto.

5. The fire-fighting drone according to claim 1, characterized in that: A rotating shaft (3041) is arranged on the side of the lever (304), and a torsion spring (305) is arranged on the rotating shaft (3041). The lever (304) and the transmission rod (302) are elastically rotatably connected through the rotating shaft (3041) and the torsion spring (305), and a limiting block (306) is arranged on the side of the transmission rod (302).

6. The fire-fighting drone according to claim 1, characterized in that: The driving mechanism (4) comprises a cam (403) mounted on the output shaft of the motor (402), and the bottom of the cam (403) is connected to the top of the transmission rod (302) in a sliding contact manner.

7. The fire-fighting drone according to claim 1, characterized in that: A finger groove (307) is provided on the side surface of the housing (301), and the finger groove (307) is an arc-shaped groove.

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