Unmanned aerial vehicle high-altitude fire breaking and demolishing device

Abstract

The utility model relates to a kind of unmanned aerial vehicle high-altitude fire-fighting breaking and opening device, including unmanned aerial vehicle, detachably installed on the power supply of unmanned aerial vehicle and the breaking and opening mechanism electrically connected with the power supply;The breaking and opening mechanism includes: breaking and opening installation support, detachably installed in the bottom of the unmanned aerial vehicle;Pre-crushing component, fixed with the inside of the breaking and opening installation support, and with the power supply electrically connected, for generating resonance frequency to make tempered glass pre-splitting;And screwing hammering component, movably arranged on the breaking and opening installation support, for applying radial knob to accelerate breaking when applying vertical direction impact to pre-splitting tempered glass.The utility model accurately controls resonance frequency by electrode heteropolarity attraction, realizes rapid pre-splitting for the characteristic of tempered glass, and combines "impact+knob" composite breaking and opening again, and breaking and opening time is shortened by 60% compared with traditional unmanned aerial vehicle impact mode.

Description

Technical Field

[0001] This utility model relates to the field of drone fire-fighting equipment technology, and in particular to a drone high-altitude fire-fighting demolition device. Background Technology

[0002] Fires in high-rise buildings are difficult to extinguish, especially since tempered glass is particularly hard and impact-resistant, making it extremely difficult to dismantle and create a passage. In the past, firefighters would carry demolition tools up the building, which was not only slow but also carried the risk of falling or being burned by the fire. Even with drones, current demolition methods are not feasible—either by ramming, as tempered glass is impact-resistant and takes a long time to break, and if it does break, the fragments scatter everywhere, easily injuring people; or by cutting, which is slow and requires constant contact with the glass, and the tools are easily damaged by the heat of the fire.

[0003] Tempered glass has a unique characteristic: if the external vibration frequency matches its natural frequency, internal stress accumulates, causing it to shatter quickly and evenly with minimal fragmentation. While some have considered using resonance to break glass, no one has yet used the principle of "opposites attract" to adjust the resonant frequency, nor has anyone combined "resonant pre-cracking" with the "impact and twisting" secondary breaking process. This results in glass dismantling being either slow or unsafe. Therefore, a drone device capable of precisely adjusting the resonant frequency of tempered glass and efficiently performing secondary breaking is urgently needed. Summary of the Invention

[0004] The purpose of this invention is to provide a drone-based high-altitude fire-fighting demolition device: using electrodes of opposite polarity to attract and resonate with a frequency that matches the tempered glass, pre-cracking the glass, and then, like a pneumatic hammer, striking and twisting it to safely and efficiently remove the glass, thus solving the aforementioned technical problems.

[0005] To achieve the above technical solution, the technical solution of this utility model is as follows: A drone high-altitude firefighting demolition device, comprising a drone, a power supply detachably mounted on the drone, and a demolition mechanism electrically connected to the power supply: the demolition mechanism includes:

[0006] The disassembly mounting bracket can be detachably installed on the bottom of the drone.

[0007] A pre-crack component, fixed to the inner side of the breakage mounting bracket and electrically connected to the power supply, is used to generate a resonant frequency to pre-crack the tempered glass; and

[0008] The rotating hammer component, movably mounted on the breaking installation bracket, is used to apply a radial knob to accelerate the breaking of pre-cracked tempered glass when applying a vertical impact.

[0009] Furthermore, the pre-crushing component includes a pre-crushing seat with one side in contact with the surface of the rotating hammer component; symmetrical anode electrodes are provided on the inner side of the pre-crushing seat; a cathode electrode is provided between adjacent anode electrodes; an insulating layer is adhered to one side of the anode electrode; a deformable liquid dielectric layer is provided between the insulating layer and the cathode electrode.

[0010] Specifically, by switching the anode circuit on / off in the symmetrically arranged rows of anode electrodes, the cathode electrodes can be attracted to swing back and forth.

[0011] Furthermore, the length of the cathode electrode is much greater than the length of the anode electrode;

[0012] The symmetrical anode electrodes are arranged in a figure-eight shape; the anode electrodes are arc-shaped.

[0013] Furthermore, the turning and hammering component includes a drive motor disposed inside the demolition mounting bracket; the output end of the drive motor is internally connected to a transmission gear assembly; the transmission gear assembly is internally connected to an impact component and a turning component; the impact component and the turning component are arranged in parallel, and one end face of the impact component abuts against the output shaft end face of the turning component.

[0014] Furthermore, the impact assembly includes an eccentric wheel sleeved on the transmission gear assembly; a swing arm is hinged to the eccentric wheel; and a hammer is hinged to one end of the swing arm.

[0015] Furthermore, the screwing assembly includes a second helical gear transmission element that meshes with the transmission gear set assembly; the output end of the second helical gear transmission element is meshed with a rotating shaft.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1) This utility model precisely controls the resonance frequency by attracting opposite electrodes, and achieves rapid pre-cracking based on the characteristics of tempered glass. Combined with the "impact + knob" composite demolition, the demolition time is reduced by 60% compared with the traditional drone impact method.

[0018] 2) This utility model avoids the risk of firefighters climbing heights by remotely operating drones, the resonant breaking makes the glass break more evenly, reduces flying debris by 40%, and the detachable structure makes it easy to replace faulty parts, reducing maintenance risks.

[0019] 3) This utility model can be adapted to tempered glass of different thicknesses of 3-12mm by adjusting the switching frequency of the anode electrode circuit, and the power supply and breaking mechanism are detachable, making it suitable for mainstream multi-rotor fire-fighting drones.

[0020] 4) This utility model, through the transmission design of "single motor dual output" and the application of lightweight materials, keeps the total weight of the demolition mechanism within 1.5kg, without affecting the flight endurance of the drone, and keeps the flight time above 20 minutes. Attached Figure Description

[0021] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0022] Figure 1 This is a front view of a drone-based high-altitude firefighting and demolition device.

[0023] Figure 2 for Figure 1 An enlarged diagram of A in the diagram. 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] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Please see the appendix Figures 1 to 2The image shows a drone-based high-altitude firefighting demolition device, comprising a drone 1, a power supply 2, and a demolition mechanism 3. The specific structure is as follows: The drone 1 is preferably a six-rotor firefighting drone with a maximum load of 3kg to ensure flight stability. The power supply 2 is detachably mounted on a bracket under the drone 1 to provide power to the demolition mechanism 3. The demolition mechanism 3 is detachably connected to the bottom of the drone 1 via a demolition mounting bracket 31, ensuring overall stability of the device and not affecting drone flight control. The demolition mechanism 3 is the core execution component, comprising the demolition mounting bracket 31, a pre-crushing component 32, and a rotating hammer component 33. These three components work together to achieve the function of "resonance pre-crushing - impact knob crushing". This utility model, through its dual detachable structure of "detachable power supply + detachable breaking and installation bracket", not only facilitates quick assembly and disassembly of the device during transportation and maintenance, reducing the difficulty of storage and repair; but also avoids the problem of low efficiency of traditional single impact / cutting breaking through the combination design of "pre-crack tempered glass pre-cracked component + movable twisting hammering component for secondary breaking", thus upgrading the breaking process from "direct hard breaking" to a coherent logic of "pre-cracking - accelerated breaking", significantly improving the efficiency of breaking tempered glass at high altitudes.

[0027] Based on the above embodiments, the demolition mounting bracket 31 is made of lightweight carbon fiber and has a hollow box-like structure. The inner side has a pre-reserved fixing groove for the pre-crack component 32, and the outer side has a mounting groove for the screw-hammering component 33. This ensures structural strength while reducing the load pressure on the drone. The pre-crack component 32 is fixed inside the demolition mounting bracket 31 and electrically connected to the power supply 2. Its core function is to generate a resonant frequency that matches the natural frequency of the tempered glass, thus achieving pre-cracking of the glass. Specifically, the drone control system controls the circuits of the two sets of anode electrodes 322 to alternately turn on and off. When the left anode electrode 322 is energized, it attracts the cathode electrode 323 due to the attraction between opposite poles, pulling the cathode electrode 323 to swing to the left. Subsequently, the left circuit is cut off, and the right anode electrode 322 is energized, causing the cathode electrode 323 to swing to the right under the attraction from the right. By adjusting the circuit switching frequency, the cathode electrode 323 swings back and forth at a set frequency, driving the pre-crack seat 321 to vibrate synchronously. Ultimately, the vibration is transmitted to the tempered glass, generating resonance and causing fine cracks to appear on the glass surface. The structural design of "pre-crushing seat in surface contact with the rotating hammer component" ensures that the resonant vibration energy generated by the pre-crushing component is stably transmitted to the rotating hammer component through the contact surface, and then indirectly acts on the glass, avoiding vibration loss. At the same time, the double-layer insulation buffer structure of "insulation layer + liquid dielectric layer" not only prevents direct contact and short circuit between the anode and cathode, but also buffers the impact of cathode oscillation through the deformable properties of the liquid dielectric, protecting the electrode structure. Combined with the design of "anode circuit switching to control cathode oscillation", the cathode oscillation frequency can be precisely adjusted, providing a structural basis for matching the inherent resonant frequency of tempered glass of different thicknesses and improving the accuracy of pre-cracking.

[0028] Based on the above embodiments, the rotating hammer component 33 can move along the slide rail of the breaking installation bracket 31 to apply vertical impact and radial knob force to the pre-cracked tempered glass, accelerating glass breakage. Specifically, it includes: a pre-breakage seat 321: made of high-temperature resistant insulating engineering plastic, with an "arc-shaped groove" structure, the groove surface is in contact with the tempered glass surface, and electrode mounting grooves are symmetrically opened on the inner side; two sets of anode electrodes 322: made of high-conductivity copper material in an arc shape, symmetrically fixed in the electrode mounting groove of the pre-breakage seat 321 in a "figure-eight" shape, each set of anode electrodes 322 is connected to the positive terminal of the power supply 2 through a wire, and an on / off controller (not shown) is provided in the wire circuit, integrated into the UAV. Control system; Cathode electrode 323: 1 set, made of elastic conductive metal such as phosphor bronze, with a length 1.5-2 times that of anode electrode 322, horizontally mounted in the middle of pre-crushing seat 321, with both ends corresponding to the arc surfaces of the two sets of anode electrodes 322, and connected to the negative terminal of power supply 2 through wires; Insulating layer 324: made of polytetrafluoroethylene film, adhered to the side of anode electrode 322 facing cathode electrode 323 to prevent direct contact and short circuit of electrodes; Liquid dielectric layer 325: filled between insulating layer 324 and cathode electrode 323, made of highly insulating silicone oil, with deformable characteristics, which not only ensures insulation between electrodes, but also buffers the swing impact of cathode electrode 323. The structural design of "cathode length is much greater than anode" allows for sufficient swing margin at both ends of the cathode, ensuring that the cathode can generate a swing amplitude that meets the resonance requirements when the anode is alternately energized, avoiding the problem of insufficient swing and insufficient resonance intensity due to the cathode being too short; the layout of "figure-eight arc anode" allows the attraction direction of the anode to the cathode to be at a certain angle, guiding the cathode to form a stable reciprocating swing trajectory rather than disorderly shaking, further improving the stability of the resonance frequency and ensuring uniform pre-splitting effect.

[0029] Based on the above embodiments, the drive motor 331 is a DC servo motor, fixed to the outside of the demolition mounting bracket 31, with its output shaft connected to the transmission gear assembly 332 and powered by the power supply 2; the transmission gear assembly 332 includes a drive gear, a first helical gear transmission element, and a second helical gear transmission element. The drive gear meshes with the output shaft of the drive motor 331, the first helical gear transmission element drives the impact assembly 333, and the second helical gear transmission element drives the screwing assembly 334, achieving "single motor dual output"; the impact assembly 333 is similar to a pneumatic hammer structure, including an eccentric wheel sleeved on the output shaft of the first helical gear transmission element, one end of the swing arm connected to the edge of the eccentric wheel via a hinge, and a striking hammer connected to the other end of the swing arm. The hammerhead is made of hard alloy and is fixed at one end. The drive motor 331 rotates the eccentric wheel, converting the circular motion into a vertical reciprocating motion of the hammer via a swing arm. The impact frequency is 5-15 times / second. The hammerhead end face abuts against the output shaft end face of the screwing assembly 334. The screwing assembly 334 includes a second helical gear transmission element and a rotating shaft with anti-slip teeth at the shaft end for contacting the glass. The second helical gear transmission element meshes with the transmission gear assembly 332, driving the rotating shaft to rotate at a speed of 30-60 rpm. Because the hammerhead of the impact assembly 334 abuts against the rotating shaft end face, the vertical impact of the hammer and the radial rotation of the rotating shaft act synchronously on the pre-cracked glass surface, achieving a combined breaking force of "impact + knob," accelerating glass shattering.

[0030] This embodiment utilizes a "single drive motor + transmission gear set" structure, allowing a single power source to simultaneously drive both the impact component and the turning component. This avoids structural redundancy and increased weight associated with dual-motor designs, reducing the load on the drone. The "parallel arrangement and end-face contact" design of the impact and turning components ensures that the vertical impact force of the impact component and the radial knob force of the turning component act synchronously at the same contact point on the glass, forming a composite breaking force of "impact + knob." This avoids the decrease in breaking efficiency caused by the deviation in the application positions of the two forces, accelerating the breaking process of the pre-cracked glass. The hinged transmission structure of "eccentric wheel + swing arm + hammer" precisely converts the circular motion of the transmission gear set into the vertical reciprocating motion of the hammer. Compared to traditional rigid transmission, the hinged connection reduces movement. The design features a stop mechanism to ensure a stable hammer impact frequency. Simultaneously, the structure allows for flexible control of the hammer's impact amplitude through adjustment of the eccentric wheel's eccentricity, adapting to the impact requirements of glass with varying degrees of pre-cracking. This avoids issues such as excessive impact force leading to glass splatter or insufficient force preventing breakage. The "second helical gear transmission element" design, compared to spur gear transmission, offers a larger meshing surface and smoother transmission, ensuring stable shaft rotation speed and preventing uneven knob force caused by speed fluctuations. Combined with the "rotating shaft and helical gear meshing" structure, the power of the transmission gear set is efficiently transmitted to the rotating shaft, allowing it to apply a continuous and uniform radial knob force to the pre-cracked glass. This accelerates the propagation of internal cracks while preventing the risk of glass splatter due to excessive localized force caused by unstable knob force.

[0031] In use, this invention involves a drone flying to the target tempered glass, adjusting its attitude to ensure the pre-crushing seat 321 fits against the glass surface, and activating the pre-crushing component 32—two sets of anode electrodes 322 alternately switching on and off at a frequency of 25Hz, while the cathode electrode 323 synchronously reciprocates, causing the pre-crushing seat 321 to vibrate at 25Hz. This vibration is transmitted to the glass, creating resonance, and after approximately 10 seconds, uniform, fine cracks appear on the glass surface. Next, the drive motor 331 of the rotating hammer component 33 is activated, and the transmission gear assembly 332 synchronously drives the impact component 333 and the rotating component 334—the hammer strikes the rotating shaft vertically at a frequency of 10 times per second, while the rotating shaft rotates radially at a speed of 40 revolutions per minute. This combined force acts on the pre-crushed glass, and after approximately 15 seconds, the glass completely shatters, forming a breach with a diameter of approximately 30cm, meeting the requirements for a rescue passage. This invention precisely controls the resonance frequency through the attraction of opposite electrodes, achieving rapid pre-crushing tailored to the characteristics of tempered glass. Combined with the "impact + knob" composite breaking method, the breaking time is reduced by 60% compared to traditional drone impact methods.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art should be able to make equivalent embodiments by making some changes or modifications to the above-disclosed technical content without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A drone-based high-altitude firefighting and demolition device, comprising a drone (1), a power supply (2) detachably mounted on the drone (1), and a demolition mechanism (3) electrically connected to the power supply (2): characterized in that, The demolition mechanism (3) includes: The disassembly mounting bracket (31) is detachably mounted on the bottom of the UAV (1); A pre-crack component (32), fixed inside the break-up mounting bracket (31) and electrically connected to the power supply (2), is used to generate a resonant frequency to pre-crack the tempered glass; and The rotating hammering component (33) is movably mounted on the breaking mounting bracket (31) and is used to apply a radial knob to accelerate the breaking when applying a vertical impact to the pre-cracked tempered glass.

2. The UAV high-altitude firefighting and demolition device as described in claim 1, characterized in that: The pre-crushing component (32) includes a pre-crushing seat (321) with one side in contact with the surface of the twisting hammer component (33); the pre-crushing seat (321) is symmetrically provided with anode electrodes (322); there is a cathode electrode (323) between adjacent anode electrodes (322); an insulating layer (324) is adhered to one side of the anode electrode (322); a deformable liquid dielectric layer (325) is provided between the insulating layer (324) and the cathode electrode (323); In this case, by connecting / disconnecting the anode circuit in the symmetrically arranged rows of anode electrodes (322), the cathode electrode (323) can be attracted to swing back and forth.

3. The UAV high-altitude firefighting and demolition device as described in claim 2, characterized in that: The length of the cathode electrode (323) is much greater than the length of the anode electrode (322); The symmetrical anode electrodes (322) are arranged in a figure-eight shape; the anode electrodes (322) are arc-shaped.

4. The UAV high-altitude firefighting and demolition device as described in claim 2, characterized in that: The rotating hammer component (33) includes a drive motor (331) disposed inside the demolition mounting bracket (31); the output end of the drive motor (331) is connected to a transmission gear assembly (332); the transmission gear assembly (332) is connected to an impact component (333) and a rotating component (334); the impact component (333) and the rotating component (334) are arranged in parallel, and one end face of the impact component (333) abuts against the output shaft end face of the rotating component (334).

5. The UAV high-altitude firefighting and demolition device as described in claim 4, characterized in that: The impact assembly (333) includes an eccentric wheel sleeved on the transmission gear assembly (332); a swing arm is hinged to the eccentric wheel; and a hammer is hinged to one end of the swing arm.

6. The UAV high-altitude firefighting and demolition device as described in claim 4, characterized in that: The screwing assembly (334) includes a second helical gear transmission element that meshes with the transmission gear assembly (332); the output end of the second helical gear transmission element is connected to a rotating shaft.

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