Fire-fighting unmanned aerial vehicle is used many bomb store rotary type fire extinguishing bomb throwing device

Abstract

The application discloses a multi-magazine rotary fire-extinguishing bomb throwing device for a fire-fighting unmanned plane, relates to the technical field of fire-extinguishing bomb throwing, and comprises a heavy-load unmanned plane body, a throwing mechanism is fixedly connected to the bottom of the heavy-load unmanned plane body, the throwing mechanism comprises a mounting frame fixedly connected with the heavy-load unmanned plane body, and the mounting frame is provided with a mounting shaft, a transmission mechanism, a transmission plate, a first telescopic driving piece, a second telescopic driving piece, a first rotating driving piece, a transmission column and a transmission groove. The mounting shaft is driven to rotate by a driving mechanism, the transmission plate moves the transmission mechanism to above a specified fire-extinguishing bomb, and then the second telescopic driving piece, the first rotating driving piece and the transmission column are matched with the transmission groove, so that the accurate rotary release of a single fire-extinguishing bomb is realized. After the high-speed rotation of the fire-extinguishing bomb, the angular momentum keeps the rotation axis direction of the fire-extinguishing bomb stable, even if the fire-extinguishing bomb is affected by side wind or air disturbance during the falling process, the bomb body is not easy to overturn and swing, the bullet head can be ensured to be roughly directed to a target area, and the bomb throwing precision is remarkably improved.

Description

Technical Field

[0001] This invention relates to fire extinguishing grenade throwing technology, specifically to a multi-ammunition-chamber rotating fire extinguishing grenade throwing device for firefighting drones. Background Technology

[0002] Firefighting drones, as a highly efficient and flexible aerial firefighting equipment, are increasingly widely used in scenarios such as forest fires, high-rise building fires, and chemical industrial park fires. Existing firefighting drones typically have a throwing mechanism installed on the bottom of the fuselage, which carries multiple fire extinguishing bombs to achieve continuous firefighting operations, thereby improving the firefighting efficiency of a single sortie.

[0003] However, most existing fire extinguishing bomb throwing devices for firefighting drones adopt a simple gravity-based throwing method, where the fire extinguishing bomb is released from the magazine and falls freely under gravity. This method has some shortcomings. The fire extinguishing bomb does not have spin stabilization during its descent. When encountering complex weather conditions such as crosswinds or air turbulence, the bomb is prone to irregular movements such as flipping and swaying, causing the warhead to deviate from the target area, resulting in low throwing accuracy and difficulty in accurately hitting the core area of ​​the fire source. Therefore, how to design a throwing device that can maintain a stable attitude and improve throwing accuracy during the throwing process is an urgent problem to be solved in the current field of firefighting drone technology. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-ammunition-chamber rotating fire extinguishing bomb throwing device for firefighting drones, in order to solve the problems of existing technologies that lack spin stabilization capabilities, are easily affected by crosswinds and airflow disturbances, causing them to flip and sway, resulting in low bomb throwing accuracy and difficulty in accurately hitting the core area of ​​the fire source.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-ammunition magazine rotary fire extinguishing grenade throwing device for firefighting drones, comprising a heavy-duty drone body, a throwing mechanism fixedly connected to the bottom of the heavy-duty drone body, the throwing mechanism comprising a mounting frame fixedly connected to the heavy-duty drone body, a plurality of mounting blocks disposed within the mounting frame, mounting slots provided on the mounting blocks, a transmission ring rotatably connected within the mounting slots, a first telescopic drive member fixedly connected within the transmission ring, a clamping plate fixedly connected to the output end of the first telescopic drive member, a transmission frame fixedly connected to the top of the transmission ring, a mounting shaft rotatably connected to the mounting frame, a transmission plate fixedly connected to the outer surface of the mounting shaft, and a transmission mechanism connected to the transmission frame disposed at the bottom of the transmission plate, the transmission mechanism being used to drive the transmission frame to rotate;

[0006] The outer surface of the mounting shaft is connected to a drive mechanism that is connected to the mounting frame. The drive mechanism is used to drive the mounting shaft to rotate.

[0007] Furthermore, the transmission mechanism includes a second telescopic drive member fixedly connected to a transmission plate, a connecting plate fixedly connected to the output end of the second telescopic drive member, a first rotation drive member fixedly connected to the connecting plate, a first transmission shaft fixedly connected to the output end of the first rotation drive member, the first transmission shaft being rotatably connected to the connecting plate, a first connecting disc fixedly connected to the bottom end of the first transmission shaft, a telescopic rod fixedly connected to the bottom of the first connecting disc, a first transmission disk fixedly connected to the output end of the telescopic rod, a first spring sleeved on the outer surface of the telescopic rod, the two ends of the first spring being fixedly connected to the first connecting disc and the first transmission disk respectively, a transmission column fixedly connected to the bottom end of the first transmission disk, a second transmission disk fixedly connected to the top of the transmission frame, and a transmission groove slidably connected to the transmission column on the top of the second transmission disk;

[0008] The bottom of the connecting plate is provided with a snap-fit ​​mechanism, which is used to limit and fix the mounting block on the mounting frame.

[0009] Furthermore, the bottom end of the transmission column is rotatably connected to a ball bearing.

[0010] Furthermore, the driving mechanism includes a second rotational driving member fixedly connected to the mounting frame, the output end of the second rotational driving member is fixedly connected to a driving shaft, the outer surface of the driving shaft is fixedly sleeved with a first gear, and the outer surface of the first gear is meshed with a second gear fixedly sleeved with the mounting shaft.

[0011] Furthermore, the snap-fit ​​mechanism includes a rotating groove on the mounting frame, the mounting block is slidably connected to the rotating groove, a first transmission inclined block is slidably connected to the top of the mounting block, a pushing column fixedly connected to the connecting plate is provided above the first transmission inclined block, a functional cavity is provided on the top of the mounting block, a second transmission inclined block is slidably connected to the functional cavity on one side of the first transmission inclined block, a fixing column is fixedly connected to the functional cavity on one side of the second transmission inclined block, a second spring fixedly sleeved on the outer surface of the fixing column and fixedly connected to the second transmission inclined block, and a plurality of fixing holes slidably connected to the fixing column are provided in the rotating groove.

[0012] Furthermore, a rubber friction pad is fixedly connected to one side of the clamping plate.

[0013] Furthermore, a hanging ring is fixedly connected inside the transmission frame, and the hanging ring is used to fix the safety rope of the fire extinguishing bomb.

[0014] Furthermore, a rolling bearing is provided between the mounting groove and the transmission ring.

[0015] Compared with the prior art, the multi-ammunition magazine rotating fire extinguishing grenade throwing device for firefighting drones provided by the present invention has the following beneficial effects:

[0016] The drive mechanism rotates the mounting shaft, causing the transmission plate to move the transmission mechanism above the designated fire extinguishing bomb. Then, through the cooperation of the second telescopic drive component, the first rotating drive component, and the transmission column and transmission groove, precise rotation and release of a single fire extinguishing bomb are achieved. After high-speed rotation, the angular momentum of the fire extinguishing bomb keeps its axis of rotation stable. Even if it is affected by crosswinds or air disturbances during descent, the bomb body is not prone to overturning or swaying, ensuring that the warhead roughly points towards the target area, significantly improving the throwing accuracy. Simultaneously, the fire extinguishing bomb's rotation after explosion disperses the extinguishing material evenly over a large area, effectively expanding the fire extinguishing coverage and improving the fire extinguishing effect. Furthermore, a rubber friction pad on one side of the clamping plate enhances the clamping force on the fire extinguishing bomb; a hanging ring inside the transmission frame facilitates the fixing of the fire extinguishing bomb's safety rope. The overall structure is reliable in operation and precise in deployment, greatly improving the firefighting combat effectiveness of fire-fighting drones.

[0017] The fire extinguishing bomb position is automatically adjusted during bomb dropping via a snap-fit ​​mechanism to achieve center of gravity balance. When a fire extinguishing bomb is dropped on one side, the center of gravity of the mounting frame shifts, and the drive mechanism moves the transmission plate above the fire extinguishing bomb on the other side. After the transmission column inserts into the transmission groove, the second telescopic drive component continues to move downward, pushing the first transmission inclined block downward. The first transmission inclined block presses against the second transmission inclined block, causing the fixing column to overcome the tension of the second spring and exit from the fixing hole. Subsequently, the mounting block is rotated to the designated angle in front, and the fixing column re-inserts into the fixing hole under the action of the second spring to complete the limit fixation. By alternately adjusting the position of the fire extinguishing bombs on the left and right sides, the center of gravity of the mounting frame is always close to the center and located directly below the main body of the heavy-load UAV, effectively eliminating the flight instability caused by uneven load and significantly improving the flight stability and mission reliability of the heavy-load UAV during continuous multi-bomb dropping. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a first perspective view of the external structure of the present invention;

[0020] Figure 2 This is a second perspective view of the external structure of the present invention;

[0021] Figure 3 This is a first perspective view of the external structure of the throwing mechanism of the present invention;

[0022] Figure 4 This is a second perspective view of the external structure of the throwing mechanism of the present invention;

[0023] Figure 5 This is a perspective view of the internal structure of the throwing mechanism of the present invention;

[0024] Figure 6 For the present invention Figure 3 Enlarged view of A in the middle;

[0025] Figure 7 For the present invention Figure 5 A magnified view of B in the middle.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Heavy-duty UAV body; 2. Mounting frame; 3. Mounting block; 4. Mounting groove; 5. Transmission ring; 6. First telescopic drive component; 7. Clamping plate; 8. Transmission frame; 9. Mounting shaft; 10. Transmission plate; 21. Second telescopic drive component; 22. Connecting plate; 23. First rotation drive component; 24. First transmission shaft; 25. First connecting disc; 26. Telescopic rod; 27. First transmission disc; 28. First spring; 29. ​​Transmission column; 290. Second transmission disc; 291. Transmission groove; 292. Ball bearing; 31. Second rotation drive component; 32. Drive shaft; 33. First gear; 34. Second gear; 41. Rotation groove; 42. First transmission wedge; 43. Push column; 44. Functional cavity; 45. Second transmission wedge; 46. Fixing column; 47. Second spring; 48. Fixing hole. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] Please see Figures 1 to 7As shown, this invention provides a multi-ammunition-chamber rotating fire extinguishing grenade throwing device for firefighting drones, including a heavy-duty drone body 1. A throwing mechanism is fixedly connected to the bottom of the heavy-duty drone body 1. The throwing mechanism includes a mounting frame 2 fixedly connected to the heavy-duty drone body 1. Multiple mounting blocks 3 are provided in the mounting frame 2. Mounting grooves 4 are provided on the mounting blocks 3. A transmission ring 5 is rotatably connected in the mounting grooves 4. A rolling bearing is provided between the mounting grooves 4 and the transmission ring 5. A first telescopic drive member 6 is fixedly connected in the transmission ring 5. The first telescopic drive member 6 is an electric telescopic rod or an electric hydraulic rod. The first telescopic drive member 6 is controlled by a PLC programming program, which can control the movement of the first telescopic drive member 6. A clamping plate 7 is fixedly connected to the output end of the first telescopic drive member 6. A transmission frame 8 is fixedly connected to the top of the transmission ring 5. A mounting shaft 9 is rotatably connected to the mounting frame 2. A transmission plate 10 is fixedly connected to the outer surface of the mounting shaft 9. A transmission mechanism connected to the transmission frame 8 is provided at the bottom of the transmission plate 10. The transmission mechanism is used to drive the transmission frame 8 to rotate.

[0031] The outer surface of the mounting shaft 9 is connected to a drive mechanism that is connected to the mounting frame 2. The drive mechanism is used to drive the mounting shaft 9 to rotate. A rubber friction pad is fixedly connected to one side of the clamping plate 7. The rubber friction pad increases the clamping force on the fire extinguishing bomb. A hanging ring is fixedly connected inside the transmission frame 8. The hanging ring is used to fix the safety rope of the fire extinguishing bomb. The hanging ring facilitates the fixing of the safety rope of the fire extinguishing bomb.

[0032] The transmission mechanism includes a second telescopic drive member 21 fixedly connected to the transmission plate 10. The second telescopic drive member 21 is an electric telescopic rod or an electro-hydraulic rod. The second telescopic drive member 21 is controlled by a PLC programming program, which can control the movement of the second telescopic drive member 21. A connecting plate 22 is fixedly connected to the output end of the second telescopic drive member 21. A first rotation drive member 23 is fixedly connected to the connecting plate 22. The first rotation drive member 23 is a servo motor. The servo motor is controlled by a PLC programming program, which can control the forward and reverse rotation and the rotation angle of the servo motor. A first transmission shaft 24 is fixedly connected to the output end of the first rotation drive member 23. A drive shaft 24 is rotatably connected to a connecting plate 22. A first connecting plate 25 is fixedly connected to the bottom end of the first drive shaft 24. A telescopic rod 26 is fixedly connected to the bottom of the first connecting plate 25. A first drive plate 27 is fixedly connected to the output end of the telescopic rod 26. A first spring 28 is sleeved on the outer surface of the telescopic rod 26. The two ends of the first spring 28 are fixedly connected to the first connecting plate 25 and the first drive plate 27 respectively. A drive column 29 is fixedly connected to the bottom end of the first drive plate 27. A second drive plate 290 is fixedly connected to the top of the drive frame 8. A drive groove 291 that is slidably connected to the drive column 29 is opened on the top of the second drive plate 290.

[0033] The bottom of the connecting plate 22 is provided with a snap-fit ​​mechanism, which is used to limit and fix the mounting block 3 on the mounting frame 2.

[0034] The bottom end of the transmission column 29 is rotatably connected to a ball bearing 292, which facilitates the rotation of the transmission column 29 on the second transmission disc 290.

[0035] The drive mechanism includes a second rotation drive component 31 fixedly connected to the mounting frame 2. The second rotation drive component 31 is a servo motor, which is controlled by a PLC programming program. The servo motor can be controlled to rotate forward and backward and rotate at different angles. The output end of the second rotation drive component 31 is fixedly connected to a drive shaft 32. A first gear 33 is fixedly sleeved on the outer surface of the drive shaft 32. A second gear 34 fixedly sleeved on the outer surface of the first gear 33 is meshed with the mounting shaft 9. The second rotation drive component 31 drives the drive shaft 32 to rotate, and the drive shaft 32 drives the mounting shaft 9 to rotate through the first gear 33 and the second gear 34.

[0036] When extinguishing fires with fire extinguishing bombs, multiple fire extinguishing bombs are inserted into the mounting slots 4 on each mounting block 3. Then, the first telescopic drive member 6 within the transmission ring 5 moves the clamping plate 7, clamping it into the fixing slot on the surface of the fire extinguishing bomb. The safety rope of the fire extinguishing bomb is then fixed to the hanging ring on the transmission frame 8. The heavy-duty drone body 1 then takes off, transporting the fire extinguishing bomb to the designated deployment location. The drive mechanism then rotates the mounting shaft 9, which in turn rotates the transmission plate 10. The transmission plate 10 moves the transmission mechanism above the corresponding fire extinguishing bomb. The second telescopic drive member 21 then moves the connecting plate 22 downwards. The connecting plate 22 moves the first rotating drive member 23 and the first transmission shaft 24 downwards. The first transmission shaft 24 moves the first connecting plate 25, the telescopic rod 26, the first spring 28, the first transmission disc 27, and the transmission column 29 downwards, causing the transmission column 29 on the first transmission disc 27 to abut against the second transmission disc 290. At this point, the telescopic rod 26 and the first spring 28... When compressed by force, the first drive shaft 24 rotates via the first rotation drive 23. The first drive shaft 24 then rotates via the telescopic rod 26, driving the first drive disc 27 and drive column 29 to rotate. When the drive column 29 aligns with the drive groove 291 on the second drive disc 290, the first drive disc 27, under the elastic force of the first spring 28, moves downwards along with the drive column 29, causing the drive column 29 to enter the drive groove 291 on the second drive disc 290, thereby driving the second drive... The disc 290 and transmission frame 8 rotate, which in turn drives the transmission ring 5 to rotate. The transmission ring 5 then drives the fire extinguishing bomb held inside to rotate, causing the fire extinguishing bomb to spin. Subsequently, the first telescopic drive component 6 is controlled to move the clamping plate 7, causing the clamping plate 7 to release the fire extinguishing bomb. At this point, the rotating fire extinguishing bomb is released downwards under the influence of gravity, thus achieving a rotating release of the fire extinguishing bomb. During the release process, the angular momentum of the fire extinguishing bomb after high-speed rotation keeps its axis of rotation stable. During the descent, even if there is crosswind or air disturbance, the bomb body is not easy to overturn or sway, ensuring that the warhead is roughly aimed at the target area, further improving the accuracy of the release. At the same time, after the fire extinguishing bomb explodes, due to the rotation of the fire extinguishing bomb, the extinguishing material after the explosion can be dispersed over a large area, further improving the fire extinguishing range and effect.

[0037] Example 2

[0038] Based on Example 1, please refer to 2 to Figure 7As shown, the snap-fit ​​mechanism includes a rotating groove 41 on the mounting frame 2, a mounting block 3 slidably connected to the rotating groove 41, a first transmission inclined block 42 slidably connected to the top of the mounting block 3, a pushing column 43 fixedly connected to the connecting plate 22 above the first transmission inclined block 42, a functional cavity 44 on the top of the mounting block 3, a second transmission inclined block 45 slidably connected to the functional cavity 44 on one side of the first transmission inclined block 42, a fixing column 46 slidably connected to the functional cavity 44 on one side of the second transmission inclined block 45, a fixing column 46 slidably connected to the functional cavity 44 on one side of the second transmission inclined block 45, a second spring 47 fixedly sleeved on the outer surface of the fixing column 46 and fixedly connected to the second transmission inclined block 45, and a plurality of fixing holes 48 slidably connected to the fixing column 46 in the rotating groove 41.

[0039] When one of the fire extinguishing bombs is deployed, the center of gravity of the mounting frame 2 below the main body 1 of the heavy-load drone shifts, causing instability in the center of gravity of the bomb-loading mechanism and affecting the stability of the subsequent flight of the main body 1 of the heavy-load drone (for example, refer to...). Figure 3 As the fire extinguishing bomb at the front center is deployed, the center of gravity of mounting frame 2 shifts rearward. At this point, the drive mechanism rotates mounting shaft 9, which in turn moves the transmission mechanism on transmission plate 10 to the left side of mounting frame 2 (see reference). Figure 3Above the fire extinguishing bomb, the transmission column 29 is inserted into the transmission groove 291. At this time, the second telescopic drive member 21 continues to drive the connecting plate 22 to move downward. The connecting plate 22 drives the push column 43 to move downward. At this time, the push column 43 begins to push the first transmission inclined block 42 downward. The first transmission inclined block 42 pushes the second transmission inclined block 45. The second transmission inclined block 45 drives the fixed column 46 to move. At this time, the second spring 47 is stretched. Then the fixed column 46 moves out of the fixed hole 48. Then the drive mechanism drives the mounting shaft 9 to rotate. The mounting shaft 9 drives the transmission plate 10 to rotate, thereby driving the mounting block 3 to rotate. This causes the mounting block 3 and the fire extinguishing bomb on the mounting block 3 to rotate forward. When it rotates to the specified angle, the second telescopic drive member 21 drives the connecting plate 22 to move downward, so that the first transmission inclined block 42 no longer squeezes the second transmission inclined block 45. Then the fixed column 46 moves under the elastic force of the second spring 47. Insert the mounting block 3 into the fixing hole 48 to limit and fix it. Then repeat the above action to rotate the right mounting block 3 forward, so that the fire extinguishing bombs on the mounting frame 2 are evenly distributed, and the center of gravity of the mounting frame 2 tends to be in the center position of the mounting frame 2. At the same time, the center of gravity is located directly below the heavy-load drone body 1. Then the heavy-load drone body 1 carries the fire extinguishing bomb to the next fire extinguishing position, making the heavy-load drone body 1 more stable when running the fire extinguishing bomb, and improving the stability of fire extinguishing. Then the fire extinguishing bomb is dropped. After the dropping, the fire extinguishing bombs on the left and right sides are balanced. Then another fire extinguishing bomb is dropped. When there is only one fire extinguishing bomb left, the load of the heavy-load drone body 1 is reduced. The unbalanced factors have less impact on the flight of the heavy-load drone body 1. Thus, the position of multiple fire extinguishing bombs is automatically adjusted during the bomb dropping process, so that the load center of gravity of the heavy-load drone body 1 tends to be balanced, and the stability of the heavy-load drone body 1 in dropping fire extinguishing bombs is improved.

[0040] Working principle:

[0041] Multiple fire extinguishing bombs are inserted into the mounting slots 4 on each mounting block 3. The first telescopic drive member 6 in the transmission ring 5 drives the clamping plate 7 to move, clamping the fire extinguishing bomb in the fixing groove on its surface (the rubber friction pad on the clamping plate 7 increases friction). Then, the safety pull rope of the fire extinguishing bomb is fixed to the hanging ring in the transmission frame 8. The heavy-duty drone body 1 takes off, transporting the fire extinguishing bomb to the designated deployment position. The drive mechanism drives the mounting shaft 9 to rotate, and the mounting shaft 9 drives the transmission plate 10 to rotate, causing the transmission mechanism to move above the corresponding fire extinguishing bomb. Then, the transmission mechanism works: the second telescopic drive member 21 drives the connecting plate 22 to move downward, and the connecting plate 22 drives the first rotating drive member 23, the first transmission shaft 24, the first connecting plate 25, the telescopic rod 26, the first spring 28, the first transmission plate 27, and the transmission column 29 to move downward. The bottom end of the transmission column 29... The ball bearing 292 abuts against the second transmission disc 290, and the telescopic rod 26 and the first spring 28 are compressed by force. The first rotation drive component 23 drives the first transmission shaft 24 to rotate. The first transmission shaft 24 drives the first transmission disc 27 and the transmission column 29 to rotate through the telescopic rod 26. When the transmission column 29 coincides with the transmission groove 291 on the second transmission disc 290, the elastic force of the first spring 28 drives the transmission column 29 to move down and insert into the transmission groove 291, thereby driving the second transmission disc 290, the transmission frame 8, the transmission ring 5 and the fire extinguishing bomb to rotate as a whole. Then the first telescopic drive component 6 drives the clamping plate 7 to retract and release the fire extinguishing bomb. The rotating fire extinguishing bomb is released downward under the action of gravity. After the fire extinguishing bomb rotates at high speed, the angular momentum keeps the direction of the rotation axis stable, and it is not easy to overturn or sway during the fall, thus improving the accuracy of the bomb. After the explosion, the rotation causes the fire extinguishing material to spread over a large area, increasing the fire extinguishing range.

[0042] During the automatic center-of-gravity balancing phase, after one of the fire extinguishing bombs is deployed, the center of gravity of the mounting frame 2 shifts, causing the drive mechanism to rotate the mounting shaft 9, which in turn moves the transmission mechanism to the remaining fire extinguishing bombs (see left side). Figure 3Above, after the transmission column 29 is inserted into the transmission groove 291, the second telescopic drive member 21 continues to drive the connecting plate 22 to move down, the connecting plate 22 drives the push column 43 to move down, the push column 43 pushes the first transmission inclined block 42 to move down, the first transmission inclined block 42 pushes the second transmission inclined block 45, the second transmission inclined block 45 drives the fixed column 46 to move in the functional cavity 44, the second spring 47 is stretched, the fixed column 46 moves out of the fixed hole 48 in the rotating groove 41, the mounting block 3 is released from the limit, the drive mechanism drives the mounting shaft 9 to rotate, the mounting shaft 9 drives the mounting block 3 to slide and rotate in the rotating groove 41 through the transmission plate 10, so that the mounting block 3 and the fire extinguishing bomb rotate forward to At a specified angle; the second telescopic drive component 21 drives the connecting plate 22 to move upward, the first transmission inclined block 42 no longer squeezes the second transmission inclined block 45, and the fixing column 46 re-inserts into the fixing hole 48 under the elastic force of the second spring 47, limiting and fixing the mounting block 3; repeat the above actions to rotate the mounting block 3 on the other side (right side) forward, so that the fire extinguishing bombs on the mounting frame 2 are evenly distributed, the center of gravity tends to be in the center of the mounting frame 2 and is located directly below the heavy-load UAV body 1; subsequently, fire extinguishing bombs are dropped in sequence and balanced in real time. When only one bomb remains, the load decreases and the impact of imbalance factors is small, thereby realizing that the center of gravity of the load automatically tends to be balanced during the bomb dropping process, improving the stability of the heavy-load UAV body 1 during dropping.

[0043] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-ammunition magazine rotating fire extinguishing grenade throwing device for firefighting drones, comprising a heavy-duty drone body (1), characterized in that, The bottom of the heavy-duty drone body (1) is fixedly connected to a throwing mechanism. The throwing mechanism includes a mounting frame (2) fixedly connected to the heavy-duty drone body (1). Multiple mounting blocks (3) are provided in the mounting frame (2). Mounting slots (4) are provided on the mounting blocks (3). A transmission ring (5) is rotatably connected in the mounting slots (4). A first telescopic drive member (6) is fixedly connected in the transmission ring (5). A clamping plate (7) is fixedly connected to the output end of the first telescopic drive member (6). A transmission frame (8) is fixedly connected to the top of the transmission ring (5). A mounting shaft (9) is rotatably connected to the mounting frame (2). A transmission plate (10) is fixedly connected to the outer surface of the mounting shaft (9). A transmission mechanism connected to the transmission frame (8) is provided at the bottom of the transmission plate (10). The transmission mechanism is used to drive the transmission frame (8) to rotate. The outer surface of the mounting shaft (9) is connected to a drive mechanism that is connected to the mounting frame (2). The drive mechanism is used to drive the mounting shaft (9) to rotate.

2. The multi-ammunition magazine rotary fire extinguishing grenade throwing device for firefighting drones according to claim 1, characterized in that, The transmission mechanism includes a second telescopic drive member (21) fixedly connected to the transmission plate (10). A connecting plate (22) is fixedly connected to the output end of the second telescopic drive member (21). A first rotation drive member (23) is fixedly connected to the connecting plate (22). A first transmission shaft (24) is fixedly connected to the output end of the first rotation drive member (23). The first transmission shaft (24) is rotatably connected to the connecting plate (22). A first connecting disc (25) is fixedly connected to the bottom end of the first transmission shaft (24). A first connecting disc (25) is fixedly connected to the bottom of the first connecting disc (25). Telescopic rod (26), the output end of which is fixedly connected to a first transmission disc (27), the outer surface of which is fitted with a first spring (28), the two ends of which are fixedly connected to a first connecting disc (25) and a first transmission disc (27) respectively, the bottom end of which is fixedly connected to a transmission column (29), the top of which is fixedly connected to a second transmission disc (290), the top of which is provided with a transmission groove (291) that is slidably connected to the transmission column (29); The bottom of the connecting plate (22) is provided with a snap-fit ​​mechanism, which is used to limit and fix the mounting block (3) on the mounting frame (2).

3. The multi-ammunition magazine rotary fire extinguishing grenade throwing device for firefighting drones according to claim 2, characterized in that, The bottom end of the transmission column (29) is rotatably connected to a ball bearing (292).

4. The multi-ammunition magazine rotary fire extinguishing grenade throwing device for firefighting drones according to claim 1, characterized in that, The drive mechanism includes a second rotation drive member (31) fixedly connected to the mounting frame (2). The output end of the second rotation drive member (31) is fixedly connected to a drive shaft (32). A first gear (33) is fixedly sleeved on the outer surface of the drive shaft (32). A second gear (34) fixedly sleeved on the outer surface of the first gear (33) is meshed with the mounting shaft (9).

5. A multi-ammunition magazine rotary fire extinguishing grenade throwing device for firefighting drones according to claim 2, characterized in that, The snap-fit ​​mechanism includes a rotating groove (41) on the mounting frame (2), the mounting block (3) is slidably connected to the rotating groove (41), the top of the mounting block (3) is slidably connected to a first transmission inclined block (42), a push column (43) fixedly connected to the connecting plate (22) is provided above the first transmission inclined block (42), a functional cavity (44) is provided on the top of the mounting block (3), a second transmission inclined block (45) slidably connected to the functional cavity (44) is slidably connected to one side of the first transmission inclined block (42), a fixed column (46) slidably connected to the functional cavity (44) is fixedly connected to one side of the second transmission inclined block (45), a second spring (47) fixedly connected to the second transmission inclined block (45) is fixedly sleeved on the outer surface of the fixed column (46), and a plurality of fixed holes (48) slidably connected to the fixed column (46) are provided in the rotating groove (41).

6. A multi-ammunition magazine rotary fire extinguishing grenade throwing device for firefighting drones according to claim 1, characterized in that, A rubber friction pad is fixedly connected to one side of the clamping plate (7).

7. A multi-ammunition magazine rotary fire extinguishing grenade throwing device for firefighting drones according to claim 1, characterized in that, A hanging ring is fixedly connected inside the transmission frame (8), and the hanging ring is used to fix the safety rope of the fire extinguishing bomb.

8. A multi-ammunition magazine rotating fire extinguishing grenade throwing device for firefighting drones according to claim 1, characterized in that, A rolling bearing is provided between the mounting groove (4) and the transmission ring (5).

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