A near distance non-launching safety window breaking device of a drone

Abstract

The utility model discloses an unmanned plane near distance non -launching safety window breaking device, including the cuboid main part, the inside of main part is equipped with the accommodation cavity for accommodating window breaking hammer, and the one side surface of accommodation cavity is open and is arranged, and the inside surface center of accommodation cavity is provided with the electromagnet. Through the electromagnet adsorption iron block on window breaking hammer in the accommodation cavity, window breaking hammer is fixed, after unmanned plane carries window breaking device and moves to the window breaking position, closes the electromagnet, and iron block no longer receives the magnetic force, and window breaking hammer can move to the window breaking point under the force storage of force storage device and cause the impact to the window to the realization near distance non -launching safety window breaking, has eliminated the security risk that the launching type window breaking device possibly leads to, uses more safe and reliable, and the impact force of near distance window breaking is relatively controllable, can effectively reduce the splashing range and speed of glass fragments, has reduced the threat of fragments to the surrounding environment and personnel.

Description

Technical Field

[0001] This utility model relates to the field of drone firefighting technology, specifically a drone-based short-range non-launch safety window-breaking device. Background Technology

[0002] In certain special scenarios, such as fire rescue and emergency home entry rescue, it is necessary to quickly break windows to create passageways or ventilation openings. Traditional window-breaking methods have certain limitations and safety hazards: firefighters using window-breaking tools to manually break windows may face the risk of flying glass shards due to their proximity to the window, and the process is relatively laborious, inefficient, and not suitable for breaking windows on high-rise buildings; while some remote-launched window-breaking devices often rely on gunpowder or high-pressure gas as a launch power source, posing a certain risk of explosion, especially when used in complex environments, which may cause secondary accidents. Furthermore, the impact velocity of launch-type window-breaking devices is extremely high, easily causing glass shards to fly at high speed in all directions, injuring nearby personnel and equipment. Therefore, we propose a drone-based short-range, non-launched, safe window-breaking device. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a short-range non-launch safety window breaking device for UAVs. This device enables short-range non-launch safety window breaking, eliminates the safety hazards that may be caused by the explosion of launch-type window breaking devices, and is safer and more reliable to use. At the same time, the impact force of short-range window breaking is relatively controllable, reducing the threat of fragments to the surrounding environment and personnel. This can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a short-range non-launch safety window-breaking device for unmanned aerial vehicles, comprising a cuboid body, wherein the body has an internal cavity for accommodating a window-breaking hammer, one side surface of the cavity is open, and an electromagnet is provided at the center of the inner surface of the cavity, a corresponding iron block is provided on the side surface of the window-breaking hammer opposite to the electromagnet, and a power storage device connected to the window-breaking hammer is provided inside the cavity.

[0005] As a preferred technical solution of this utility model, the upper surface of the main body is provided with a connecting frame that connects to the bottom of the drone, and a number of connecting holes are evenly opened on the top plate of the connecting frame.

[0006] As a preferred technical solution of this utility model, the window-breaking hammer includes a sliding seat that is slidably disposed in the receiving cavity and a connecting seat connected to the sliding seat. A plurality of screw holes are evenly opened on the side surfaces of the sliding seat and the connecting seat, and connecting bolts are threaded into the screw holes. A conical hammer head is fixedly disposed on the side surface of the connecting seat.

[0007] As a preferred technical solution of this utility model, at least two sliders are evenly arranged on the outer surface of the sliding seat away from the hammer head, and at least two sets of fixed seats are fixedly arranged on the inner surface of the receiving cavity. Each set of fixed seats has two seats and is respectively arranged at both ends of the receiving cavity. A guide rod is fixedly arranged between the two fixed seats, and the slider slides on the guide rod.

[0008] As a preferred technical solution of this utility model, two fixing blocks are symmetrically arranged on the outer surface of the sliding seat away from the hammer head, and the fixing blocks are fixedly connected to one end of the pull rope; two circular pull rope receiving grooves are opened on the inner surface of the main body, and a drive motor is installed on the side surface of the main body away from the hammer head. The output shaft of the drive motor passes through one of the pull rope receiving grooves and is connected to the rotating drum. The two ends of the rotating drum are respectively rotatably arranged in the two pull rope receiving grooves, and the other ends of the two pull ropes are fixedly arranged on the rotating drum.

[0009] As a preferred embodiment of this utility model, a baffle corresponding to the rope receiving groove is fixedly provided on the outer surface of the rotating drum.

[0010] As a preferred technical solution of this utility model, a deep groove is formed on the inner surface of the receiving cavity, and the pull rope is set inside the deep groove, and the deep groove connects the receiving cavity and the cavity where the rotating cylinder is located.

[0011] As a preferred embodiment of this utility model, a window frame is fixedly provided on the outer surface of the main body, and the window frame is located on the outer side of the open side of the receiving cavity.

[0012] As a preferred embodiment of this utility model, the energy storage device includes an energy storage spring disposed between the connecting seat and the inner surface of the receiving cavity, and the energy storage spring is disposed on the outside of the electromagnet and the iron block.

[0013] As a preferred technical solution of this utility model, the power storage device includes two elastic bands disposed in the receiving cavity. Both ends of the two elastic bands are fixedly disposed on the inner wall of the receiving cavity near its open side by fixing plates. Two C-shaped fixing buckles are fixedly disposed on the side surface of the sliding seat away from the hammer head. The two elastic bands are respectively slidably disposed inside the two fixing buckles.

[0014] Compared with existing technologies, the advantages of this invention are as follows: The electromagnet within the housing attracts the iron block on the window-breaking hammer, fixing it in place. After the drone carries the window-breaking device to the window-breaking position, the electromagnet is deactivated, and the iron block is no longer subject to magnetic force. The window-breaking hammer, under the power of the charging device, then moves rapidly towards the window-breaking point, impacting the window. This achieves close-range, non-launched safe window breaking, eliminating the safety hazards caused by explosions in launched window-breaking devices. It is safer and more reliable to use. Simultaneously, the impact force of close-range window breaking is relatively controllable, effectively reducing the range and speed of glass shards, and lowering the threat of shards to the surrounding environment and personnel. The window-breaking device, carried and controlled by a drone, enables precise window breaking of high-rise outdoor windows, which is beneficial for rescue operations in high-rise buildings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a partial cross-sectional schematic diagram of the present invention;

[0017] Figure 3 This utility model Figure 2 A schematic diagram of the side view structure;

[0018] Figure 4 This is a schematic diagram of the structure of the window-breaking hammer of this utility model;

[0019] Figure 5 This is a schematic diagram of another embodiment of the present invention.

[0020] In the diagram: 1 Main body, 2 Connecting frame, 3 Connecting hole, 4 Window breaker hammer, 41 Connecting seat, 42 Hammer head, 43 Sliding seat, 44 Connecting bolt, 45 Iron block, 5 Receiving cavity, 6 Electromagnet, 7 Storage spring, 8 Slider, 9 Guide rod, 10 Fixed seat, 11 Fixed block, 12 Pull rope, 13 Drive motor, 14 Rotary drum, 15 Baffle, 16 Deep groove, 17 Pull rope receiving groove, 18 Elastic band, 19 Fixed plate, 20 Fixed buckle, 21 Window mounting frame. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4This utility model provides a technical solution: a short-range non-launch safety window-breaking device for unmanned aerial vehicles, including a cuboid main body 1, wherein the main body 1 has an internal cavity 5 for accommodating a window-breaking hammer 4, the length of the cavity 5 being more than 1.5 times the length of the window-breaking hammer 4, which allows it to have sufficient travel to complete the acceleration. One side of the receiving cavity 5 is open, and an electromagnet 6 is installed at the center of the inner surface of the receiving cavity 5. A corresponding iron block 45 is installed on the side of the window breaker hammer 4 opposite to the electromagnet 6. The electromagnet 6 in the receiving cavity 5 attracts the iron block 45 on the window breaker hammer 4, fixing the window breaker hammer 4. A power storage device connected to the window breaker hammer 4 is installed in the receiving cavity 5. After the drone carrying the window breaker device moves to the window breaking position, the electromagnet 6 is turned off, and the iron block 45 is no longer subject to magnetic force. The window breaker hammer 4 can then move quickly towards the window breaking point under the power stored in the power storage device to impact the window, thereby achieving close-range non-launched safe window breaking. This eliminates the safety hazards that may be caused by the explosion of the launched window breaker device, making it safer and more reliable to use. At the same time, the impact force of close-range window breaking is relatively controllable, which can effectively reduce the range and speed of glass fragments, and reduce the threat of fragments to the surrounding environment and personnel.

[0023] In a preferred embodiment, the upper surface of the main body 1 is provided with a connecting frame 2 that connects to the bottom of the drone. The top plate of the connecting frame 2 has several evenly spaced connecting holes 3, which can be used to securely connect the connecting frame 2 to the drone via bolts or similar components. The window-breaking device is carried and controlled by the drone, enabling precise window breaking of high-rise outdoor windows, which is beneficial for rescue operations in high-rise buildings.

[0024] Further preferably, plugs and sockets that can be interconnected can be provided on the main body 1 and the drone, preferably aviation plugs and sockets, so that the drone system can be electrically connected to the electromagnet 6 on the main body 1, so as to supply power to it and control its switching through the drone's host.

[0025] In a preferred embodiment, the window breaker hammer 4 includes a sliding seat 43 slidably disposed within a receiving cavity 5 and a connecting seat 41 connected to the sliding seat 43. The side surfaces of the sliding seat 43 and the connecting seat 41 are evenly provided with a plurality of screw holes, and connecting bolts 44 are threaded into the screw holes. A conical hammer head 42 is fixedly disposed on the side surface of the connecting seat 41. The hammer head 42 and the connecting seat 41 are connected to the sliding seat 43 by the connecting bolts 44. The appropriate hammer head can be flexibly selected according to the window glass to be broken, and it can be easily replaced when the hammer head is damaged or the window breaking effect deteriorates.

[0026] In a preferred embodiment, at least two sliders 8 are evenly arranged on the outer surface of the sliding seat 43 away from the hammer head 42, and at least two sets of fixed seats 10 are fixedly arranged on the inner surface of the receiving cavity 5. Each set of fixed seats 10 has two parts and is respectively arranged at both ends of the receiving cavity 5. A guide rod 9 is fixedly arranged between the two fixed seats 10. The sliders 8 slide on the guide rod 9 to guide and limit the movement direction of the sliding seat 43. The sliding seat 43 moves linearly in the receiving cavity 5 through the guide rod 9, ensuring the impact force and window breaking effect of the window breaking hammer 4.

[0027] The inner surface of the slider 8 is provided with ball bearings or linear motion bearings. By contacting the surface of the guide rod 9 with the ball bearings or linear motion bearings, the friction can be greatly reduced, allowing the window breaker hammer 4 to move outward faster under the acceleration of the power storage device, thereby ensuring the window breaking force.

[0028] In a preferred embodiment, two fixing blocks 11 are symmetrically arranged on the outer surface of the sliding seat 43 away from the hammer head 42. Each fixing block 11 is fixedly connected to one end of a high-strength pull rope 12. Two circular pull rope receiving grooves 17 are formed on the inner surface of the main body 1. A drive motor 13 is mounted on the surface of the main body 1 away from the hammer head 42. The output shaft of the drive motor 13 passes through one of the pull rope receiving grooves 17 and is connected to a rotating drum 14. Both ends of the rotating drum 14 are rotatably positioned within the two pull rope receiving grooves 17, and the two pull ropes... The other end of 12 is fixedly mounted on the rotating drum 14. The drive motor 13 can drive the rotating drum 14 to rotate, thereby winding the pull rope 12 around the rotating drum 14. The sliding seat 43 can be moved into the receiving cavity 5 by pulling the rope 12. With the magnetic adsorption of the electromagnet 6, the window breaker hammer 4 can be quickly retracted and the power storage device can be compressed. When dealing with glass that is difficult to break, such as laminated glass or tempered glass, the window breaker hammer 4 can be retracted and released multiple times by the drive motor 13 and the rotating drum 14, and the power can be stored and released, thereby breaking the glass multiple times and improving the window breaking efficiency.

[0029] Both the drive motor 13 and the electromagnet 6 are electrically connected to the UAV system via aviation plugs and sockets. The UAV's built-in controller controls them using methods commonly found in existing technologies, such as:

[0030] Direct control: The drone's controller sends control signals directly to the drive motors by controlling the motor drivers to adjust the motor speed and direction. Similarly, the window breaker hammer is fixed and released by controlling the on / off state of the electromagnet. This method is simple and direct, suitable for window breaker devices with uncomplicated control requirements.

[0031] Duty cycle control: The output power of the drive motor is adjusted by changing the duty cycle of the control signal. For example, when using a pulse width modulation (PWM) signal to control the motor, the larger the duty cycle, the higher the average voltage received by the motor, and the faster the speed. For electromagnets, the magnitude of their magnetic force can be controlled by adjusting the duty cycle, thereby adjusting the fixing force of the window breaker hammer.

[0032] Status monitoring and feedback control: The drone's built-in controller monitors the operating status of the drive motor and electromagnet in real time, such as the motor's speed and current, and the electromagnet's voltage and current. Based on these parameters, it compares them with preset target values ​​and automatically adjusts the motor and electromagnet through the feedback control system. For example, when the motor speed is detected to be lower than the set value, the controller automatically increases the duty cycle of the motor drive signal to increase the motor speed; when the electromagnet's current fluctuates, it promptly adjusts its input voltage to maintain magnetic stability.

[0033] Joint Control Algorithm: Several control algorithms, such as fuzzy control and PID control, are employed to jointly control the drive motor and electromagnet. Taking PID control as an example, when controlling the motor, the actual position or speed feedback of the motor is collected and compared with the target value to obtain the error. The PID algorithm is then used to calculate the error and obtain the control signal, achieving precise control of the motor. Similarly, for the electromagnet, the output characteristics of the electromagnet can be adjusted using control algorithms based on the actual state and requirements of the fixed window-breaking hammer, optimizing the control effect of the window-breaking device.

[0034] Pre-programmed control based on flight phases: Control programs for the drive motors and electromagnets are pre-programmed according to the UAV's flight phases, such as takeoff, target approach, window breaking, and withdrawal. During each flight phase, the controller automatically executes the corresponding control commands according to the preset program. For example, during target approach, the drive motor is controlled to adjust the attitude and position of the window breaking device, while the electromagnet is controlled to keep the window-breaking hammer fixed; during window breaking, according to the preset window-breaking action, the electromagnet is controlled to release the window-breaking hammer, and the drive motor provides auxiliary power for the hammer's movement.

[0035] Manual real-time operation control: Operators send control commands to the UAV in real time via remote control devices, such as remote control handles or ground control stations, to directly control the operation of the drive motors and electromagnets. This method allows operators to flexibly operate the window-breaking device according to the actual situation on site and adjust the window-breaking strategy in a timely manner. It is suitable for complex and ever-changing window-breaking scenarios, but it requires a high level of skill and experience from the operator.

[0036] Semi-automatic real-time control: Based on manual real-time operation, some automated auxiliary functions are introduced. For example, after the operator issues a window-breaking command through the remote control device, the drone controller automatically and precisely controls the drive motor and electromagnet to complete the window-breaking action according to preset parameters and control algorithms. The operator can intervene manually when necessary, which improves the accuracy and efficiency of window breaking.

[0037] In a further preferred embodiment, a baffle 15 corresponding to the rope receiving groove 17 is fixedly provided on the outer surface of the rotating drum 14. The baffle 15 can limit the winding rope 12 to prevent it from coming out of the rope receiving groove 17, thus preventing the window breaker hammer 4 from being fully released.

[0038] In a further preferred embodiment, a deep groove 16 is formed on the inner surface of the receiving cavity 5, and a pull rope 12 is disposed inside the deep groove 16. The deep groove 16 penetrates the cavity where the receiving cavity 5 and the rotating drum 14 are located. The pull rope 12 moves inside the deep groove 16 to prevent the pull rope 12 from coming out of the receiving cavity 5 when it is too loose and interfering with the power storage device.

[0039] Optionally, a window-attaching frame 21 is fixedly installed on the outer surface of the main body 1. The window-attaching frame 21 is located on the outer side of the open side of the receiving cavity 5. The window-attaching frame 21 is a frame-shaped body that extends a short section of the acceleration stroke of the window-breaking hammer 4. A nano-silicone sticker or other commonly used adhesive device is provided on the outer surface of the window-attaching frame 21. When the drone carrying the window-breaking device moves to the window glass, it can adhere to the glass through the nano-silicone sticker, which improves the stability of the subsequent window-breaking process and further ensures the window-breaking effect.

[0040] Both the end of the window frame 21 and the main body 1 extend about 20cm beyond the rotor or edge of the drone, so that the drone can carry the window breaking device to the window glass and attach the window frame 21 to the window.

[0041] The electromagnet 6 and drive motor 13 used in this application are common electronic components in the prior art. Their specific structures, working principles, control methods and circuit connections are all well-known technologies and will not be described in detail here.

[0042] In a preferred embodiment, the power storage device includes a power storage spring 7 disposed between the sliding seat 43 and the inner surface of the receiving cavity 5. The power storage spring 7 is disposed on the outside of the electromagnet 6 and the iron block 45. When the power storage spring 7 is compressed, it stores power. When the electromagnet 6 is closed, the sliding seat 43 is no longer magnetically attracted and moves rapidly outward under the elastic force of the power storage spring 7, thereby driving the connecting seat 41 and the hammer head 42 to move and impact the window breaking point to break the window.

[0043] When using the spring 7, it can be applied to various types of glass commonly used in high-rise buildings, including tempered glass, laminated glass, ordinary glass, heat-absorbing glass, and heat-reflective glass. The spring 7 can store a significant amount of elastic potential energy. For high-strength glass such as tempered glass and laminated glass, a window-breaking device using a spring 7 with a high spring coefficient can be carried by a large drone.

[0044] Please see Figure 5 This utility model also provides another embodiment, which is largely the same as the aforementioned embodiment, except that: the power storage device includes two elastic bands 18 disposed in the receiving cavity 5. Both ends of the two elastic bands 18 are fixedly disposed on the inner wall of the receiving cavity 5 near its open side by fixing plates 19. Two C-shaped fixing buckles 20 are fixedly disposed on the side surface of the sliding seat 43 away from the hammer head 42. The two elastic bands 18 are respectively slidably disposed inside the two fixing buckles 20. When the window breaker hammer 4 is attracted and fixed in the receiving cavity 5 by the electromagnet 6, the elastic bands 18 are stretched and power stored. When the electromagnet 6 is closed, the sliding seat 43 is no longer attracted by magnetic force. The elastic bands 18 quickly push the window breaker hammer 4 outward to break the glass through elastic force. The breaking point is generally selected at the lower left or lower right corner of the window to avoid affecting the hovering of the drone.

[0045] Elastic band 18 is suitable for breaking low-strength glass such as ordinary glass, heat-absorbing glass, and heat-reflective glass. Elastic band 18 itself is very lightweight, effectively controlling the drone's load and having minimal impact on flight performance, making it suitable for small drones that are sensitive to weight.

[0046] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A short-range, non-launch-safe window-breaking device for unmanned aerial vehicles (UAVs), comprising a rectangular parallelepiped-shaped main body (1), characterized in that: The main body (1) has an internal cavity (5) for accommodating the window breaker hammer (4). One side surface of the cavity (5) is open, and an electromagnet (6) is provided at the center of the inner surface of the cavity (5). A corresponding iron block (45) is provided on the side surface of the window breaker hammer (4) opposite to the electromagnet (6). A power storage device connected to the window breaker hammer (4) is provided inside the cavity (5).

2. The UAV near-range non-launch safety window-breaking device according to claim 1, characterized in that: The upper surface of the main body (1) is provided with a connecting frame (2) that connects to the bottom of the drone, and a number of connecting holes (3) are evenly opened on the top plate of the connecting frame (2).

3. The UAV near-range non-launch safety window-breaking device according to claim 1, characterized in that: The window-breaking hammer (4) includes a sliding seat (43) that is slidably disposed in the receiving cavity (5) and a connecting seat (41) connected to the sliding seat (43). The side surfaces of the sliding seat (43) and the connecting seat (41) are evenly provided with a number of screw holes, and the screw holes are threaded with connecting bolts (44). The side surface of the connecting seat (41) is fixedly provided with a conical hammer head (42).

4. A short-range, non-launch-based safety window-breaking device for unmanned aerial vehicles (UAVs) according to claim 3, characterized in that: At least two sliders (8) are evenly arranged on the outer surface of the sliding seat (43) away from the hammer head (42). At least two sets of fixed seats (10) are fixedly arranged on the inner surface of the receiving cavity (5). Each set of fixed seats (10) has two parts and is respectively arranged at both ends of the receiving cavity (5). A guide rod (9) is fixedly arranged between the two fixed seats (10), and the slider (8) slides on the guide rod (9).

5. A short-range, non-launch-based safety window-breaking device for unmanned aerial vehicles (UAVs) according to claim 4, characterized in that: Two fixing blocks (11) are symmetrically arranged on the outer surface of the sliding seat (43) away from the hammer head (42). The fixing blocks (11) are fixedly connected to one end of the pull rope (12). Two circular pull rope receiving grooves (17) are opened on the inner surface of the main body (1). A drive motor (13) is installed on the side surface of the main body (1) away from the hammer head (42). The output shaft of the drive motor (13) passes into one of the pull rope receiving grooves (17) and is connected to the rotating drum (14). The two ends of the rotating drum (14) are respectively rotated in the two pull rope receiving grooves (17), and the other ends of the two pull ropes (12) are fixedly arranged on the rotating drum (14).

6. A short-range, non-launch-based safety window-breaking device for unmanned aerial vehicles (UAVs) according to claim 5, characterized in that: The outer surface of the rotating drum (14) is fixedly provided with a baffle (15) corresponding to the rope receiving groove (17).

7. A short-range, non-launch-based safety window-breaking device for unmanned aerial vehicles (UAVs) according to claim 5, characterized in that: The inner surface of the receiving cavity (5) is provided with a deep groove (16), and the pull rope (12) is set inside the deep groove (16), and the deep groove (16) connects the receiving cavity (5) and the cavity where the rotating drum (14) is located.

8. A short-range, non-launch-based safety window-breaking device for unmanned aerial vehicles (UAVs) according to claim 1, characterized in that: A window frame (21) is fixedly installed on the outer surface of the main body (1), and the window frame (21) is located on the outer side of the open side of the receiving cavity (5).

9. A short-range, non-launch-based safety window-breaking device for unmanned aerial vehicles (UAVs) according to claim 1, characterized in that: The energy storage device includes an energy storage spring (7) disposed between the sliding seat (43) and the inner surface of the receiving cavity (5), and the energy storage spring (7) is disposed on the outside of the electromagnet (6) and the iron block (45).

10. A short-range, non-launch-based safety window-breaking device for unmanned aerial vehicles (UAVs) according to claim 1, characterized in that: The force storage device comprises two elastic belts (18) arranged in the accommodating cavity (5), both ends of the two elastic belts (18) are fixedly arranged on the inner wall of the accommodating cavity (5) near the open side of the accommodating cavity (5) through the fixing plate (19), and two C-shaped fixing buckles (20) are fixedly arranged on the surface of the sliding seat (43) away from the hammer head (42).

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