A UAV low-altitude rescue throwing structure

Abstract

This utility model discloses a low-altitude rescue throwing structure for unmanned aerial vehicles (UAVs), including a UAV body, a fixed box at the bottom of the UAV body, a fixed plate at the bottom of the fixed box, through slots at both ends of the fixed box, a movable plate slidingly arranged in the through slots, a limiting component between the movable plate and the fixed box, a mounting frame inside the fixed box, a cross plate inside the mounting frame dividing the mounting frame into four spaces, each space equipped with a clamping mechanism, a driving mechanism inside the cross plate, a rotating door at one end of the fixed box, and a fixing component on the outside of the rotating door. This utility model significantly enhances the stability and accuracy during the throwing process through the fixed box, cross plate, and clamping mechanism. The closed design of the fixed box effectively reduces the impact of wind resistance on flight stability. The innovative design of the driving mechanism and sliding component enables the batch loading and rapid continuous deployment of fire extinguishing bombs, greatly improving rescue efficiency.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically a throwing structure for low-altitude rescue using UAVs. Background Technology

[0002] In utility model patent application CN209634732U, published on November 15, 2019, entitled "UAV Throwing Device," this utility model discloses a UAV throwing device, belonging to the field of high-altitude object throwing technology. The key technical feature is that the UAV throwing device includes a throwing assembly with a switch arm and a guide line connecting the switch arm and the thrown object. The switch arm is tilted. By utilizing the guide line in conjunction with the tilted switch arm, precise and rapid release of the thrown object is achieved.

[0003] In the aforementioned patents or prior art, in forest fires or fires in complex terrain, the fire spreads over a large area, and traditional firefighting methods are difficult to control quickly. Furthermore, firefighters face significant safety risks when entering the scene to extinguish the fire. While drones can quickly deliver fire extinguishing agents to the fire source area and extinguish the flames in time, the drone's delivery device is prone to shaking due to wind during flight, resulting in unstable flight attitude and deviations in the position and direction of the released items. Utility Model Content

[0004] The purpose of this invention is to provide a throwing structure for low-altitude rescue using unmanned aerial vehicles (UAVs) to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a throwing structure for low-altitude rescue using a drone, comprising a drone body, a fixed box fixedly mounted at the bottom of the drone body, a fixed plate fixedly mounted at the bottom of the fixed box, through slots at both ends of the fixed box, movable plates slidably mounted within the through slots, a matching limiting component between the movable plates and the fixed box, an installation frame fixedly mounted inside the fixed box, a cross plate fixedly mounted inside the installation frame, the cross plate being composed of horizontal and vertical plates, the cross plate dividing the installation frame into four spaces, each space being equipped with a clamping mechanism, a driving mechanism within the cross plate for driving two sets of movable plates to move in opposite directions, a rotating door rotatably mounted at one end of the fixed box, and a fixing component mounted on the outside of the rotating door.

[0006] Furthermore, the limiting component includes limiting blocks fixedly disposed at both ends of the movable plate, and the inner wall of the fixed box is provided with limiting grooves that cooperate with the limiting blocks.

[0007] Furthermore, the clamping mechanism includes four sets of grooves formed on the cross plate. The four grooves are symmetrically distributed at both ends of the vertical plate where the cross plate is located. One end of the first spring is fixedly connected to the inner wall of the groove, and the other end of the first spring is connected to the first clamp. A second clamp is provided on the opposite side of the first clamp. The second clamp is slidably connected to the movable plate through a sliding component.

[0008] Furthermore, the sliding assembly includes a fixed rod fixedly disposed at the bottom end of the second clamp, a slider at the bottom end of the fixed rod, a groove at the top end of the movable plate that cooperates with the slider, and a reset assembly disposed in the groove.

[0009] Furthermore, the reset assembly includes a second spring installed in the slide groove, one end of which is connected to the inner wall of the slide groove, and the other end of which is connected to the slider.

[0010] Furthermore, the drive mechanism includes a mounting groove at the bottom of the cross plate, a threaded rod is rotatably provided in the mounting groove, and the threads on the surface of the threaded rod are opposite. One end of the threaded rod is connected to the motor output end, and two sets of drive blocks are threadedly fitted on the outer surface of the threaded rod, and the two sets of drive blocks are symmetrically arranged.

[0011] Furthermore, the fixing component includes long slots symmetrically opened at both ends of the fixing box, L-shaped blocks are slidably arranged in the long slots, a connecting rod is fixed between the two sets of L-shaped blocks, and a magnetic block that attracts the connecting rod is provided on the fixing box, and the magnetic block is located below the rotating door.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the throwing structure for low-altitude rescue using a drone is reasonable and has the following advantages:

[0013] (1) The UAV throwing structure significantly enhances the stability and accuracy of the throwing process through the coordinated design of the fixed box, cross plate and clamping mechanism. The closed design of the fixed box effectively reduces the impact of wind resistance on flight stability. As an external protective structure, the fixed box can block lateral wind force and reduce the interference of airflow disturbance on the attitude of the UAV, thereby maintaining flight stability. Traditional throwing devices are prone to shaking in strong winds, causing the fire extinguishing bomb to deviate from the target area. The closed design of the fixed box physically isolates airflow disturbance, allowing the UAV to maintain horizontal balance during flight, thereby ensuring the throwing accuracy. The vertical falling trajectory of the fire extinguishing bomb is shown. In addition, the cross plate divides the mounting frame into four independent spaces. With the arc-shaped clamping surfaces of the first and second clamps, four fire extinguishing bombs can be fixed at the same time and the force is distributed. The first spring set in the groove not only provides elastic cushioning, but also absorbs the reaction force generated by the fire extinguishing bomb due to inertia or external impact, and avoids the clamp structure from being deformed or damaged due to rigid collision. This dual cushioning mechanism ensures that the fire extinguishing bomb is always in a stable state during transportation and release, and ensures that the fire extinguishing bomb can still be accurately deployed to the target location in strong wind environment. It is especially suitable for scenarios that require fixed-point deployment, such as forest fires.

[0014] (2) Through the innovative design of the drive mechanism and sliding components, this structure realizes the batch loading and rapid continuous deployment of fire extinguishing bombs, greatly improving rescue efficiency. The drive mechanism adopts a two-way threaded rod in conjunction with a motor, which can synchronously control two sets of movable plates to make opposing movements. Only one motor start and stop is needed to release four fire extinguishing bombs at the same time. When the threaded rod rotates, the drive block drives the movable plate to move outward, so that the second clamp is disengaged from the fire extinguishing bomb. The second spring in the slide provides additional rebound force after the fixed rod touches the inner wall of the mounting frame, ensuring that the movable plate continues to move until it is completely disengaged from the fire extinguishing bomb support surface. This mechanical linkage design improves the efficiency of traditional single-bomb throwing to single-bomb throwing. In addition, the automatic return function of the reset component and the magnetic fixed door simplify the reloading process. The operator only needs to replenish the fire extinguishing bombs and close the rotating door to prepare for the next task. Compared with the traditional single throwing device, this structure saves time and increases the number of throws, especially suitable for emergency scenarios where the fire spreads rapidly, and buys a critical time window for the initial fire fighting. Attached Figure Description

[0015] Figure 1 This is a top view of the structure of this utility model;

[0016] Figure 2 This is a structural schematic diagram of the present invention viewed from below;

[0017] Figure 3 This is a schematic diagram of the internal structure of the fixing box of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the bottom of the fixed box of this utility model;

[0019] Figure 5 This is a structural schematic diagram of the cross-section of the fixing box of this utility model;

[0020] Figure 6 This is a schematic diagram of the clamping mechanism of this utility model;

[0021] Figure 7 This is a schematic diagram of the drive mechanism of this utility model;

[0022] Figure 8 This is a structural schematic diagram of the cross-section of the mounting frame of this utility model.

[0023] In the diagram: 100, UAV body; 200, fixed box; 201, rotating door; 202, long slot; 203, L-shaped block; 204, connecting rod; 205, magnet block; 300, fixed plate; 301, through slot; 302, movable plate; 303, limiting block; 304, limiting slot; 400, mounting frame; 401, cross plate; 402, groove; 403, first spring; 404, first clamp; 405, second clamp; 406, fixed rod; 407, slider; 408, sliding groove; 409, second spring; 500, mounting slot; 501, threaded rod; 502, motor; 503, drive block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-8 The present invention provides a technical solution as follows:

[0026] Example 1:

[0027] A low-altitude rescue throwing structure for unmanned aerial vehicles (UAVs) includes a UAV body 100. A fixed box 200 is fixedly mounted at the bottom of the UAV body 100. A fixed plate 300 is fixedly mounted at the bottom of the fixed box 200. Through slots 301 are opened at both ends of the fixed box 200. Movable plates 302 are slidably mounted in the through slots 301. A limiting component is provided between the movable plates 302 and the fixed box 200. An installation frame 400 is fixedly mounted inside the fixed box 200. A cross plate 401 is fixedly mounted inside the installation frame 400. The cross plate 401 is composed of horizontal and vertical plates. The cross plate 401 divides the installation frame 400 into four spaces. Each space is provided with a clamping mechanism. A driving mechanism is provided inside the cross plate 401 to drive two sets of movable plates 302 to move in opposite directions. A rotating door 201 is rotatably mounted at one end of the fixed box 200. A fixing component is provided on the outside of the rotating door 201.

[0028] The limiting component includes limiting blocks 303 fixedly disposed at both ends of the movable plate 302, and the inner wall of the fixed box 200 is provided with limiting grooves 304 that cooperate with the limiting blocks 303.

[0029] The clamping mechanism includes four sets of grooves 402 formed on the cross plate 401. The four grooves 402 are symmetrically distributed at both ends of the vertical plate where the cross plate 401 is located. One end of the first spring 403 is fixedly connected to the inner wall of the groove 402. The other end of the first spring 403 is connected to the first clamp 404. A second clamp 405 is provided on the opposite side of the first clamp 404. The second clamp 405 is slidably connected to the movable plate 302 through a sliding component.

[0030] The sliding assembly includes a fixed rod 406 fixedly disposed at the bottom end of the second clamp 405, a slider 407 disposed at the bottom end of the fixed rod 406, and a groove 408 that cooperates with the slider 407 is provided at the top end of the movable plate 302, and a reset assembly is disposed in the groove 408.

[0031] The reset assembly includes a second spring 409 installed in a slide 408, one end of which is connected to the inner wall of the slide 408, and the other end of which is connected to a slider 407.

[0032] The drive mechanism includes a mounting groove 500 at the bottom of the cross plate 401. A threaded rod 501 is rotatably provided in the mounting groove 500, and the threads on the surface of the threaded rod 501 are opposite. One end of the threaded rod 501 is connected to the output end of the motor 502. Two sets of drive blocks 503 are threaded on the outer surface of the threaded rod 501, and the two sets of drive blocks 503 are symmetrically arranged.

[0033] The fixing component includes long slots 202 symmetrically opened at both ends of the fixing box 200. L-shaped blocks 203 are slidably arranged in the long slots 202. A connecting rod 204 is fixed between two sets of L-shaped blocks 203. A magnet 205 is provided on the fixing box 200 that attracts the connecting rod 204, and the magnet 205 is located below the rotating door 201.

[0034] Working Principle: Fire extinguishing bombs release extinguishing agents, enabling them to cover a large fire area in a short time, rapidly reducing the fire's intensity and effectively curbing its spread. In forest fires or fires in complex terrain, where the fire spreads over a large area, traditional firefighting methods are difficult to control quickly, and firefighters face significant safety risks when entering the scene. Drone-launched fire extinguishing bombs can quickly deliver the extinguishing agent to the fire area, extinguishing the flames promptly. During use, rotating the rotating door 201 facilitates placing the fire extinguishing bomb into the fixed box 200. Because the drone's launching device is prone to swaying due to wind during flight, causing instability in the drone's flight attitude and resulting in deviations in the position and direction of the released item, the fixed box 200 blocks some wind force, reducing the direct impact of wind on the launching device and thus reducing wind resistance. This helps maintain the drone's stable flight attitude.Meanwhile, it reduces swaying caused by wind, allowing the throwing device to maintain a stable position when releasing fire extinguishing bombs, thereby improving throwing accuracy. The cross plate 401 divides the mounting frame 400 into four spaces, and four fire extinguishing bombs are placed through the clamping mechanism. Under normal circumstances, the two sets of movable plates 302 are in contact with the fixed plate 300. At this time, the fire extinguishing bombs are fixed by four sets of second clamps 405 connected to the movable plates 302 through the sliding component. Each clamping mechanism fixes the fire extinguishing bomb through two sets of arc-shaped first clamps 404 and second clamps 405. The spring 403 provides a certain degree of stability for the throwing of the fire extinguishing bombs. The spring 403 provides a buffering effect, applicable to both the first clamp 404 and the second clamp 405. During the throwing process, the first clamp 404 and the second clamp 405 may experience a reaction force from the fire extinguishing projectile. The spring 403 absorbs these reaction forces, protecting the structure of the first clamp 404 and the second clamp 405, extending their service life. Furthermore, the elasticity of the spring 403 ensures that the first clamp 404 and the second clamp 405 can stably hold the fire extinguishing projectile, preventing it from loosening during throwing. Once the drone body 100 reaches the desired position, the motor is activated. 502 drives the rotating door 201 to rotate. Since the threads on the surface of the threaded rod 501 are opposite, the rotation of the threaded rod 501 can drive the two sets of driving blocks 503 to move in opposite directions, thereby driving the two sets of movable plates 302 away from the fixed plate 300. When the movable plates 302 move towards or away from each other, they drive the second clamp 405 to move, releasing the clamp on the fire extinguishing bomb. The fire extinguishing bomb then detaches from the clamped state and falls onto the support surface of the movable plate 302. When the fixed rod 406 touches the inner wall of the mounting frame 400, under the action of the second spring 409, it pushes the movable plate 302 to continue moving. When the movable plate 302 moves to a certain position, there is no support under the fire extinguishing bomb, so it falls to the required position to extinguish the flames. After the fire extinguishing bomb is deployed, the operator operates it to return to the starting point. The motor 502 drives the threaded rod 501 to rotate, so that the two sets of drive blocks 503 drive the movable plate 302 to move relative to each other. At this time, the staff can fill the fire extinguishing bomb by rotating the rotating door 201. After filling, slide the L-shaped block 203 to move it down and get close to the magnetic block 205. The L-shaped block 203 is equipped with a magnet. When the L-shaped block 203 is close to the magnetic block 205, it can be fixed.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A UAV low altitude rescue throwing structure, comprising a UAV body (100), characterized in that: The bottom of the UAV body (100) is fixedly provided with a fixed box (200), and the bottom of the fixed box (200) is fixedly provided with a fixed plate (300). Both ends of the fixed box (200) are provided with through slots (301). Movable plates (302) are slidably provided in the through slots (301). There are corresponding limiting components between the movable plates (302) and the fixed box (200). The fixed box (200) is fixedly provided with an installation frame (400). The installation frame (400) is fixedly provided with a cross plate (401). The cross plate (401) is composed of a horizontal plate and a vertical plate. The cross plate (401) divides the installation frame (400) into four spaces. Each space is provided with a clamping mechanism. The cross plate (401) is provided with a driving mechanism that drives the two sets of movable plates (302) to move in opposite directions. One end of the fixed box (200) is provided with a rotating door (201). The outside of the rotating door (201) is provided with a fixing component.

2. The unmanned aerial vehicle low-altitude rescue throwing structure according to claim 1, characterized in that: The limiting component includes limiting blocks (303) fixedly installed at both ends of the movable plate (302), and the inner wall of the fixed box (200) is provided with limiting grooves (304) that cooperate with the limiting blocks (303).

3. The unmanned aerial vehicle low-altitude rescue throwing structure according to claim 1, characterized in that: The clamping mechanism includes four sets of grooves (402) formed on the cross plate (401). The four grooves (402) are symmetrically distributed at both ends of the vertical plate where the cross plate (401) is located. The inner wall of the groove (402) is fixedly connected to one end of the first spring (403). The other end of the first spring (403) is connected to the first clamp (404). A second clamp (405) is provided on the opposite side of the first clamp (404). The second clamp (405) is slidably connected to the movable plate (302) through a sliding component.

4. The unmanned aerial vehicle low-altitude rescue throwing structure according to claim 3, characterized in that: The sliding assembly includes a fixed rod (406) fixedly disposed at the bottom end of the second clamp (405), a slider (407) is provided at the bottom end of the fixed rod (406), and a groove (408) that cooperates with the slider (407) is provided at the top end of the movable plate (302), and a reset assembly is provided in the groove (408).

5. The unmanned aerial vehicle low-altitude rescue throwing structure according to claim 4, characterized in that: The reset assembly includes a second spring (409) installed in a slide (408), one end of which is connected to the inner wall of the slide (408), and the other end of which is connected to a slider (407).

6. The unmanned aerial vehicle low altitude rescue throwing structure according to claim 1, characterized in that: The drive mechanism includes a mounting groove (500) at the bottom of the cross plate (401). A threaded rod (501) is rotatably provided in the mounting groove (500), and the threads on the surface of the threaded rod (501) are opposite. One end of the threaded rod (501) is connected to the output end of the motor (502). Two sets of drive blocks (503) are threaded on the outer surface of the threaded rod (501), and the two sets of drive blocks (503) are symmetrically arranged.

7. The unmanned aerial vehicle low-altitude rescue throwing structure according to claim 1, characterized in that: The fixing component includes long slots (202) symmetrically opened at both ends of the fixing box (200), L-shaped blocks (203) are slidably arranged in the long slots (202), and a connecting rod (204) is fixedly arranged between the two sets of L-shaped blocks (203). The fixing box (200) is provided with a magnet (205) that attracts the connecting rod (204), and the magnet (205) is located below the rotating door (201).

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