High-altitude fire-fighting forcible entry system and method

Abstract

The invention relates to a high-altitude fire-fighting forcible entry system and method.The high-altitude fire-fighting forcible entry system comprises a water tower fire truck which comprises an arm support provided with a fire water monitor; the forcible entry module comprises a modular shell, a compressed air bottle and a pneumatic crushing mechanism, the compressed air bottle and the pneumatic crushing mechanism are arranged in the modular shell, the modular shell is connected with the arm frame through a mechanical locking assembly, and the pneumatic crushing mechanism comprises a pneumatic power system communicated with the compressed air bottle; and the impact output assembly is driven by the pneumatic power system to do reciprocating impact motion. The device has the beneficial effects of integration, modularization, safety and high efficiency, can realize fire extinguishing and forcible entry integrated operation, and is particularly suitable for quick forcible entry of glass curtain walls or windows of high-rise buildings.

Description

Technical Field

[0001] This invention relates to the field of fire fighting technology, specifically to a high-altitude fire-fighting demolition system and method. Background Technology

[0002] In the process of fighting fires in high-rise buildings, the effectiveness of aerial ladder fire trucks, as key equipment for fire control and extinguishing on the exterior of buildings, is often severely limited by the building's exterior wall structure. When the fire truck's boom is raised to the floor where the fire is burning, the sprayed extinguishing agent is often blocked by obstacles such as intact glass windows and glass curtain walls, resulting in low efficiency of external firefighting and the inability to suppress the fire in a timely manner.

[0003] Currently, demolition of high-rise buildings mainly relies on firefighters carrying hydraulic or electric demolition tools to approach the site, or on ladder trucks carrying demolition personnel. The former is high-risk and slow to respond, while the latter requires multi-vehicle coordination and a long preparation time. There have been attempts to integrate demolition devices onto fire trucks, but these mostly rely on hydraulic or electric drives, resulting in complex systems, high costs, and significant modifications to the original fire truck structure. Therefore, there is an urgent need for a demolition system that is simple in structure, quick to install, highly safe, and suitable for high-altitude operations. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated, modular, safe, and efficient high-altitude fire-fighting and demolition system and method that can achieve integrated fire extinguishing and demolition.

[0005] A high-altitude fire-fighting and demolition system, comprising: Aerial fire truck, which includes a boom equipped with a fire monitor; The demolition module includes a modular housing, a compressed air cylinder disposed within the modular housing, and a pneumatic crushing mechanism. The modular housing is connected to the boom via a mechanical locking assembly. The pneumatic crushing mechanism includes a pneumatic power system connected to the compressed air cylinder, and an impact output assembly driven by the pneumatic power system to perform reciprocating impact motion.

[0006] In the above solution, the demolition module is directly integrated into the boom of the aerial fire truck. This allows the fire truck to perform precise and powerful mechanical demolition of glass curtain walls and windows while simultaneously extinguishing fires from above. This creates crucial conditions for firefighting, smoke extraction, and opening rescue channels, eliminating the need to wait for other specialized demolition equipment to arrive on site. This significantly shortens the response time for critical rescue operations and ensures the safety of firefighters. Through mechanical locking components, the demolition module can be quickly and securely installed or removed from the fire truck boom. This design avoids complex modifications to the original structure, hydraulic, and electrical systems of the fire truck, reducing integration difficulty and cost. At the same time, it ensures high reliability and safety of the module connection during high-altitude operations. The demolition module uses a pneumatic power system powered by compressed air cylinders to drive the breaking mechanism, ensuring good safety. The impact output component driven by the pneumatic power system performs reciprocating impact motion, resulting in a simple structure. With relatively low equipment investment, this solution addresses a major tactical shortcoming in high-rise firefighting, offering extremely high cost-effectiveness and facilitating large-scale deployment within fire brigades.

[0007] Furthermore, the pneumatic power system includes a pressure reducing valve, a reversing valve, a main accumulator, and a cylinder unit that are sequentially connected and form a circuit through an air passage. The cylinder unit includes a cylinder body, a pneumatic piston, and a piston rod. The pneumatic piston is movably disposed within the cylinder body, and the piston rod is connected to the pneumatic piston.

[0008] In the above scheme, the pressure reducing valve can adjust the high-pressure gas output from the compressed air bottle to a stable pressure suitable for the operation of the pneumatic power system. The gas can drive the piston to generate instantaneous explosive force, thereby ensuring that the impact output component obtains strong and continuous impact energy. The main accumulator can store the high-pressure gas energy from the compressed air bottle. During operation, the main accumulator can quickly supply a large amount of compressed air to the cylinder unit. The reversing valve can accurately and quickly switch the intake and exhaust directions of the cylinder unit, thereby enabling the pneumatic piston and piston rod to perform high-speed and stable reciprocating motion. The pneumatic power system has simple pipeline connections, a compact overall size, and low power consumption, making it very suitable for integration into the limited space of a modular housing.

[0009] Furthermore, the cavity inside the cylinder is divided into a front cylinder cavity and a rear cylinder cavity by the pneumatic piston, and the main accumulator is connected to the front cylinder cavity.

[0010] In the above scheme, during energy storage, gas enters the main accumulator and the front chamber of the cylinder through the reversing valve. The pneumatic piston is pushed by the gas, and the gas in the rear chamber of the cylinder is discharged through the reversing valve. The piston rod is in a retracted state. Then, the reversing valve quickly switches the intake and exhaust directions of the cylinder unit. High-pressure gas enters the rear chamber of the cylinder and pushes the piston out. At the same time, the gas stored in the main accumulator is violently released through the connected front chamber of the cylinder, which quickly reduces the back pressure of the pneumatic piston and greatly increases the impact speed and force. After the impact is completed, the main accumulator is refilled with gas along with the front chamber of the cylinder when the pneumatic piston retracts for the next time, restoring it to the set pressure and preparing for the next impact.

[0011] Furthermore, the cylinder unit also includes a back pressure accumulator chamber pre-filled with inert gas, and a buffer piston connected to the other end of the pneumatic piston away from the piston rod. The buffer piston is sealed and reciprocally extends into the back pressure accumulator chamber.

[0012] In the above scheme, during the return stroke of the pneumatic piston, i.e. the piston rod retraction stage, the buffer piston compresses the inert gas, converting part of the return kinetic energy into the gas's compressive potential energy and storing it in the back pressure energy storage chamber. During the working stroke of the pneumatic piston, i.e. the piston rod impact extension stage, the compressed gas expands and releases energy, applying an additional thrust in the same direction to the main piston through the buffer piston. This process realizes the recovery of internal energy and auxiliary drive of the system, directly increasing the total output power of a single impact and improving energy utilization efficiency.

[0013] Furthermore, the impact output assembly includes a connecting sleeve and a pick, the pick being connected to the piston rod, the connecting sleeve being connected to the outer shell and sleeved around the pick, and a spring steel being sleeved between the connecting sleeve and the pick.

[0014] In the above scheme, the connecting sleeve is fixed to the outer shell, providing a stable and precise axial movement guide for the pick, ensuring that the pick moves along the predetermined axis with each impact, preventing energy loss or component wear caused by skew. The spring steel sleeved between the connecting sleeve and the pick effectively buffers and isolates the peak reaction force and high-frequency vibration during the impact process.

[0015] Furthermore, the piston rod is fixedly connected to a connector, the tail of the connector is provided with a slot, the slot is provided with a first transverse through hole, the head of the pick is provided with a second transverse through hole that mates with the first transverse through hole, and the first transverse through hole and the second transverse through hole are connected by a knob plunger.

[0016] In the above scheme, the pick head is inserted into the slot of the connector to form a tight axial sleeve fit, which can effectively withstand and transmit huge axial impact force and prevent the pick from loosening or moving during impact. After aligning the first transverse through hole and the second transverse through hole, the pick can be assembled by connecting with a rotating plunger. The operation is simple and reliable.

[0017] Furthermore, the modular housing includes a first housing and a second housing, with the compressed air cylinder installed in the first housing and the pneumatic crushing mechanism installed in the second housing.

[0018] In the above scheme, the two core but different subsystems, compressed air cylinder and pneumatic crushing mechanism, are housed in independent first and second shells, respectively, achieving physical isolation of functions. This allows for the optimal design of the modular shell. The first shell focuses on sealing, explosion protection, and structural support to safely house the high-pressure gas cylinder, while the second shell focuses more on rigidity, heat dissipation, and vibration suppression to adapt to the high-frequency impact mechanism.

[0019] Furthermore, the mechanical locking assembly includes a plurality of metal clamps, which are arranged along the length of the first housing and fixedly connected to the first housing. Each metal clamp includes a clamping band and a worm gear type tensioner for driving the clamping band to contract.

[0020] In the above scheme, the metal clamp is fixed to the first housing by welding or other means. When it needs to be installed on the boom of the fire truck, the clamping strap of the metal clamp is looped around the boom. Then, the free end of the clamping strap is passed through the worm gear tensioner installed at the other end. The metal clamp can be tightened on the boom by adjusting the worm gear tensioner with a wrench or the like, which is convenient for assembly and disassembly. Several metal clamps are set along the length of the first housing and held tightly on the boom to ensure a stable connection between the demolition module and the fire truck boom.

[0021] Furthermore, the demolition module also includes a proximity sensor and a control unit. The proximity sensor is mounted on the modular housing and is positioned toward the tip of the pick. The control unit is connected to the proximity sensor and a human-machine interface for signal transmission. The proximity sensor is configured to monitor the distance between the pick tip and the surface of the target obstacle in real time; The control unit is configured to receive the distance signal from the proximity sensor, and when the distance reaches a preset optimal breaking distance threshold, output a visual and / or audible prompt signal to the operator through the human-machine interface to indicate that the pneumatic crushing mechanism can be activated for impact.

[0022] In the above solution, the proximity sensor can continuously monitor the distance between the tip of the pick and the surface of the target obstacle such as glass, and when the preset optimal breaking distance is reached, it clearly prompts the operator with the signal that the pneumatic breaking mechanism can impact. This provides firefighters operating fire trucks to carry out high-altitude operations with an objective and accurate distance reference, and solves the problem of distance misjudgment caused by poor visibility and angle deviation.

[0023] A demolition method, implemented using any one of the above-mentioned high-altitude fire-fighting demolition systems, includes the following steps: S1. Install the demolition module onto the end of the boom of the aerial ladder fire truck using the mechanical locking assembly; S2. Operate the boom to align the pneumatic crushing mechanism with the high-altitude target work area; S3. Activate the pneumatic power system to drive the impact output component to shatter the glass or obstacles in the work area and create a water jet breach; S4. Activate the fire monitor and let its jet flow through the water jet vent to carry out fire extinguishing operations.

[0024] In the above scheme, after arriving at the scene, firefighters can break the glass or obstacles in the work area through the demolition module to create a water jet breach, and then quickly carry out fire extinguishing operations through fire monitors. This method integrates the two high-risk and time-consuming steps of "high-altitude demolition" and "high-altitude water jetting" into a process that is continuously completed by the same high-altitude fire truck at the same work point. This fundamentally changes the tactical mode of fire extinguishing outside high-rise buildings, changing it from relying on personnel risking their lives and the coordination of multiple equipment to improving fire extinguishing efficiency while ensuring the personal safety of firefighters.

[0025] The high-altitude fire-fighting demolition system and method of the present invention have the advantages of integration, modularity, safety and efficiency, and the ability to achieve integrated fire extinguishing and demolition. Integrating the breaching module directly onto the boom of an aerial fire truck allows the truck to perform precise and powerful mechanical breaching of glass curtain walls and windows while simultaneously engaging in aerial firefighting. This creates crucial conditions for firefighting, smoke extraction, and opening rescue routes, eliminating the need to wait for other specialized breaching equipment to arrive on site. This significantly shortens the response time for critical rescue operations and ensures the safety of firefighters. Through a mechanical locking assembly, the breaching module can be quickly and securely installed or removed from the fire truck boom. This design avoids complex modifications to the fire truck's original structure, hydraulic, and electrical systems, reducing integration difficulty and cost. It also ensures high reliability and safety of the module connection during high-altitude operations. The breaching module uses a pneumatic power system powered by compressed air cylinders to drive the breaking mechanism, ensuring good safety. The impact output component, driven by the pneumatic power system, performs reciprocating impact motion, resulting in a simple structure. With relatively low equipment investment, this solution addresses a major tactical shortcoming in high-rise firefighting, offering extremely high cost-effectiveness and facilitating large-scale deployment within fire brigades. Attached Figure Description

[0026] Figure 1 This is a perspective view of a high-altitude fire-fighting demolition system according to one embodiment.

[0027] Figure 2 This is a plan view of a pneumatic crushing mechanism according to one embodiment.

[0028] Figure 3 for Figure 1 A magnified view of a portion of the image.

[0029] Figure 4 This is a flowchart of a demolition method according to one embodiment.

[0030] Reference numerals: 1. Boom; 2. Fire monitor; 3. Modular housing; 31. First housing; 32. Second housing; 4. Compressed air cylinder; 5. Pneumatic crushing mechanism; 51. Pneumatic power system; 511. Pressure reducing valve; 512. Reversing valve; 513. Main accumulator; 514. Cylinder body; 5141. Cylinder front chamber; 5142. Cylinder rear chamber; 515. Pneumatic piston; 516. Piston rod; 517. Back pressure accumulator chamber; 518. Buffer piston; 52. Impact output assembly; 521. Connecting sleeve; 522. Pick; 523. Spring steel; 524. Connector; 5241. First transverse through hole; 6. Metal clamp; 7. Proximity sensor. Detailed Implementation

[0031] The high-altitude fire-fighting demolition system and method of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0032] like Figure 1 and Figure 2 As shown in a preferred embodiment, a high-altitude fire-fighting breaching system of the present invention includes: a high-rise fire truck, which includes a boom 1 equipped with a fire monitor 2; and a breaching module, which includes a modular housing 3, a compressed air cylinder 4 disposed within the modular housing 3, and a pneumatic breaking mechanism 5. The modular housing 3 is connected to the boom 1 via a mechanical locking assembly. The pneumatic breaking mechanism 5 includes a pneumatic power system 51 connected to the compressed air cylinder 4, and an impact output component 52 driven by the pneumatic power system 51 to perform reciprocating impact motion. By directly integrating the breaching module onto the boom 1 of the high-rise fire truck, the fire truck can simultaneously perform precise and powerful mechanical breaching of glass curtain walls and windows while simultaneously extinguishing fires from above. This creates crucial conditions for fire extinguishing, smoke extraction, and opening rescue channels, eliminating the need to wait for other specialized breaching equipment to arrive on site, significantly shortening the response time for critical rescue operations, and ensuring the safety of firefighters.

[0033] With the mechanical locking assembly, the demolition module can be quickly and securely installed or removed from the fire truck boom 1. This design avoids complex modifications to the original structure, hydraulic and electrical systems of the fire truck, reducing integration difficulty and cost. At the same time, it ensures high reliability and safety of module connection during high-altitude operations. The demolition module uses a pneumatic power system 51 powered by compressed air cylinder 4 to drive the breaking mechanism, which has good safety. The impact output component 52 driven by the pneumatic power system 51 performs reciprocating impact motion. The structure is simple. With relatively low equipment investment, it solves a major tactical shortcoming in high-rise fire fighting, with a very high cost-effectiveness ratio, and is easy to promote and equip on a large scale in fire brigades.

[0034] like Figure 2 As shown, in some embodiments, the pneumatic power system 51 includes a pressure reducing valve 511, a reversing valve 512, a main accumulator 513, and a cylinder unit that are sequentially connected and form a circuit through an air passage. The cylinder unit includes a cylinder body 514, a pneumatic piston 515, and a piston rod 516. The pneumatic piston 515 is movably disposed within the cylinder body 514, and the piston rod 516 is connected to the pneumatic piston 515. The pressure reducing valve 511 can regulate the high-pressure gas output from the compressed air bottle 4 to a stable pressure suitable for the operation of the pneumatic power system 51. The gas can drive the piston to generate instantaneous explosive force, thereby ensuring that the impact output component 52 obtains strong and continuous impact energy. The main accumulator 513 can store the high-pressure gas energy from the compressed air bottle 4. During operation, the main accumulator 513 can quickly supply a large amount of compressed air to the cylinder unit. The reversing valve 512 can accurately and quickly switch the intake and exhaust directions of the cylinder unit, thereby enabling the pneumatic piston 515 and piston rod 516 to perform high-speed and stable reciprocating motion. The pneumatic power system 51 has simple pipeline connections, a compact overall size, and low power consumption, making it very suitable for integration into the limited space of the modular housing 3.

[0035] like Figure 2As shown, in some embodiments, the cavity inside the cylinder 514 is divided into a front cylinder cavity 5141 and a rear cylinder cavity 5142 by the pneumatic piston 515, and the main accumulator 513 is connected to the front cylinder cavity 5141. During energy storage, gas enters the main accumulator 513 and the cylinder front chamber 5141 through the reversing valve 512. The pneumatic piston 515 is pushed by the gas, and the gas in the cylinder rear chamber 5142 is discharged through the reversing valve 512. The piston rod 516 is in a retracted state. Then, the reversing valve 512 quickly switches the intake and exhaust directions of the cylinder unit. High-pressure gas enters the cylinder rear chamber 5142 and pushes the piston out. At the same time, the gas stored in the main accumulator 513 is violently released through the connected cylinder front chamber 5141, which quickly reduces the back pressure of the pneumatic piston 515 and greatly increases the impact speed and force. After the impact is completed, the main accumulator 513 is refilled with gas together with the cylinder front chamber 5141 when the pneumatic piston 515 retracts for the next time, restoring the set pressure and preparing for the next impact.

[0036] like Figure 2 As shown, in some embodiments, the cylinder unit further includes a back pressure accumulator chamber 517, which is pre-filled with inert gas. A buffer piston 518 is connected to the other end of the pneumatic piston 515 away from the piston rod 516. The buffer piston 518 is sealed and reciprocally extends into the back pressure accumulator chamber 517. During the return stroke of the pneumatic piston 515, i.e., the retraction phase of the piston rod 516, the buffer piston 518 compresses the inert gas, converting part of the return kinetic energy into the gas's compressive potential energy and storing it in the back pressure accumulator chamber 517. During the working stroke of the pneumatic piston 515, i.e., the impact extension phase of the piston rod 516, the compressed gas expands and releases energy, applying an additional thrust in the same direction to the main piston through the buffer piston 518. This process realizes the recovery of internal energy and auxiliary drive, directly increasing the total output power of a single impact and improving energy utilization efficiency.

[0037] like Figure 2 and Figure 3 As shown, in some embodiments, the impact output assembly 52 includes a connecting sleeve 521 and a pick 522. The pick 522 is connected to the piston rod 516. The connecting sleeve 521 is connected to the housing and sleeved around the outer periphery of the pick 522. A spring steel 523 is sleeved between the connecting sleeve 521 and the pick 522. The connecting sleeve 521 is fixed to the housing, providing a stable and precise axial movement guide for the pick 522, ensuring that the pick 522 moves along a predetermined axis with each impact, preventing energy loss or component wear caused by skew. The spring steel 523 sleeved between the connecting sleeve 521 and the pick 522 effectively buffers and isolates the peak reaction force and high-frequency vibration during the impact process.

[0038] As shown in the figure, in some embodiments, the piston rod 516 is fixedly connected to a connector 524. The tail of the connector 524 is provided with a slot, and the slot is provided with a first transverse through hole 5241. The head of the pick 522 is provided with a second transverse through hole that mates with the first transverse through hole 5241. The first transverse through hole 5241 and the second transverse through hole are connected by a rotary plunger. The head of the pick 522 is inserted into the slot of the connector 524, forming a tight axial fitting, which can effectively withstand and transmit huge axial impact forces and prevent the pick 522 from loosening or shifting during impact. After aligning the first transverse through hole 5241 and the second transverse through hole, the pick is connected by rotating the plunger, thus completing the assembly of the pick. The operation is simple and reliable.

[0039] like Figure 1 As shown, in some embodiments, the modular housing 3 includes a first housing 31 and a second housing 32. The compressed air cylinder 4 is installed in the first housing 31, and the pneumatic crushing mechanism 5 is installed in the second housing 32. By housing these two core but different subsystems, the compressed air cylinder 4 and the pneumatic crushing mechanism 5, in separate first and second housings 31 and 32 respectively, physical isolation of functions is achieved. This allows for optimized design of the modular housing 3. The first housing 31 focuses on sealing, explosion protection, and structural support to safely accommodate the high-pressure gas cylinder, while the second housing 32 focuses more on rigidity, heat dissipation, and vibration suppression to accommodate high-frequency impact mechanisms.

[0040] like Figure 1 As shown, in some embodiments, the mechanical locking assembly includes several metal clamps 6. These metal clamps 6 are arranged along the length of the first housing 31 and fixedly connected to it. Each metal clamp 6 includes a clamping band and a worm gear type tensioner for driving the clamping band to contract. The clamping band of the metal clamp 6 is fixedly connected to the first housing 31 by welding or other methods. When it needs to be installed on the boom 1 of a fire truck, the clamping band of the metal clamp 6 is looped around the boom 1, and then the free end of the clamping band is passed through the worm gear type tensioner installed at its other end. By adjusting the worm gear type tensioner with a wrench, the metal clamp 6 can be tightened onto the boom 1, facilitating assembly and disassembly. The arrangement of several metal clamps 6 along the length of the first housing 31 and their tight connection to the boom 1 ensures a stable connection between the demolition module and the fire truck boom 1. The metal clamp 6 is a common type of clamp; its structure is shown in more detail here.

[0041] like Figure 1As shown, in some embodiments, the demolition module further includes a proximity sensor 7 and a control unit. The proximity sensor 7 is mounted on the modular housing 3 and oriented towards the tip of the pick 522. The control unit is connected to both the proximity sensor 7 and a human-machine interface. The proximity sensor 7 is configured to monitor the distance between the tip of the pick 522 and the surface of the target obstacle in real time. The control unit is configured to receive the distance signal from the proximity sensor 7, and when the distance reaches a preset optimal demolition distance threshold, output a visual and / or audible prompt signal to the operator through the human-machine interface to indicate that the pneumatic breaking mechanism 5 can be activated for impact. The proximity sensor 7 can continuously monitor the distance between the tip of the pick 522 and the surface of the target obstacle such as glass, and clearly prompt the operator that the pneumatic breaking mechanism 5 can be impacted when the preset optimal demolition distance is reached. This provides firefighters operating fire trucks for high-altitude operations with an objective and accurate distance reference, solving the problem of distance misjudgment caused by poor visibility and angle deviation.

[0042] In the above embodiments, the proximity sensor 7 can be a laser rangefinder or an ultrasonic sensor. The detection axis of the proximity sensor 7 is parallel or coincident with the impact axis of the pick 522 to accurately measure the real-time distance between the tip of the pick 522 and the surface of the target glass or other obstacles. The control unit can be integrated into the module or the main control system of the fire truck to continuously receive distance data from the proximity sensor 7. The control unit has a pre-stored optimal breaking distance threshold, which can be set to 50-200 mm. The specific value can be set according to the stroke of the pick 522 and the characteristics of the glass. When the real-time distance is equal to or enters the threshold range, the control unit determines that the breaking module is in the optimal working position. The control unit does not directly trigger the pneumatic breaking mechanism 5 to act, but sends a command to the human-machine interface located in the fire truck cab or on the remote control. The human-machine interface then outputs a clear "impactable" prompt signal to the operator working at height in the form of a green indicator light that is constantly lit, a "ready" icon popping up on the display screen, and / or a continuous beeping sound. After receiving the prompt, the operator manually triggers the start switch according to the situation on site, thereby controlling the pneumatic power system 51 to work. For those skilled in the art, how to control the pneumatic power system 51 can be achieved by combining common knowledge in the field, and will not be described in detail here.

[0043] like Figure 4 As shown, in a preferred embodiment, a demolition method, implemented based on the high-altitude fire-fighting demolition system described in any of the above embodiments, includes the following steps: S1. Install the demolition module onto the end of the boom 1 of the aerial spray fire truck using the mechanical locking assembly; S2. Operate boom 1 to align pneumatic crushing mechanism 5 with the high-altitude target work area; S3. Activate the pneumatic power system 51 to drive the impact output component 52 to shatter the glass or obstacles in the work area and form a water jet breach. S4. Activate fire monitor 2 to allow its jet to pass through the water jet vent for fire extinguishing operations.

[0044] Specifically, after arriving at the scene, firefighters can break through the glass or obstacles in the work area using the demolition module to create a water jet breach, and then quickly carry out fire extinguishing operations using the fire monitor 2. This method integrates the originally separate high-risk and time-consuming processes of "high-altitude demolition" and "high-altitude water jetting" into a process that is continuously completed by the same high-altitude fire truck at the same work point. This fundamentally changes the tactical mode of fire extinguishing outside high-rise buildings, transforming it from relying on personnel risking their lives and coordinating multiple equipment to improving fire extinguishing efficiency while ensuring the personal safety of firefighters.

[0045] In the description of this invention, it should be understood that terms such as "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] Although the description of the invention has been given in conjunction with the specific embodiments described above, it will be apparent to those skilled in the art that many substitutions, modifications, and variations can be made based on the foregoing. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A high-altitude fire-fighting demolition system, characterized in that, include: Aerial fire truck, which includes a boom equipped with a fire monitor; The demolition module includes a modular housing, a compressed air cylinder disposed within the modular housing, and a pneumatic crushing mechanism. The modular housing is connected to the boom via a mechanical locking assembly. The pneumatic crushing mechanism includes a pneumatic power system connected to the compressed air cylinder, and an impact output assembly driven by the pneumatic power system to perform reciprocating impact motion.

2. The high-altitude fire-fighting demolition system according to claim 1, characterized in that, The pneumatic power system includes a pressure reducing valve, a reversing valve, a main accumulator, and a cylinder unit that are connected in sequence through an air passage to form a circuit. The cylinder unit includes a cylinder body, a pneumatic piston, and a piston rod. The pneumatic piston is movably disposed in the cylinder body, and the piston rod is connected to the pneumatic piston.

3. The high-altitude fire-fighting and demolition system according to claim 2, characterized in that, The cylinder body is divided into a front cylinder chamber and a rear cylinder chamber by the pneumatic piston, and the main accumulator is connected to the front cylinder chamber.

4. The high-altitude fire-fighting and demolition system according to claim 3, characterized in that, The cylinder unit also includes a back pressure accumulator chamber, which is pre-filled with inert gas. A buffer piston is connected to the other end of the pneumatic piston away from the piston rod. The buffer piston is sealed and reciprocates into the back pressure accumulator chamber.

5. The high-altitude fire-fighting and demolition system according to claim 2, characterized in that, The impact output assembly includes a connecting sleeve and a pick. The pick is connected to the piston rod. The connecting sleeve is connected to the outer shell and sleeved on the outer periphery of the pick. A spring steel is sleeved between the connecting sleeve and the pick.

6. The high-altitude fire-fighting demolition system according to claim 5, characterized in that, The piston rod is fixedly connected to a connector, the tail of which is provided with a slot, and the slot is provided with a first transverse through hole. The head of the pick is provided with a second transverse through hole that mates with the first transverse through hole. The first transverse through hole and the second transverse through hole are connected by a knob plunger.

7. The high-altitude fire-fighting demolition system according to claim 1, characterized in that, The modular housing includes a first housing and a second housing, with the compressed air cylinder installed in the first housing and the pneumatic crushing mechanism installed in the second housing.

8. The high-altitude fire-fighting and demolition system according to claim 7, characterized in that, The mechanical locking assembly includes a plurality of metal clamps, which are arranged along the length of the first housing and fixedly connected to the first housing. Each metal clamp includes a clamping band and a worm gear type tensioner for driving the clamping band to contract.

9. The high-altitude fire-fighting demolition system according to claim 5, characterized in that, The demolition module also includes a proximity sensor and a control unit. The proximity sensor is mounted on the modular housing and is positioned toward the tip of the pick. The control unit is connected to the proximity sensor and a human-machine interface. The proximity sensor is configured to monitor the distance between the pick tip and the surface of the target obstacle in real time; The control unit is configured to receive the distance signal from the proximity sensor, and when the distance reaches a preset optimal breaking distance threshold, output a visual and / or audible prompt signal to the operator through the human-machine interface to indicate that the pneumatic crushing mechanism can be activated for impact.

10. A method for breaking down structures, characterized in that, The high-altitude fire-fighting and demolition system based on any one of claims 1 to 9 comprises the following steps: S1. Install the demolition module onto the end of the boom of the aerial ladder fire truck using the mechanical locking assembly; S2. Operate the boom to align the pneumatic crushing mechanism with the high-altitude target work area; S3. Activate the pneumatic power system to drive the impact output component to shatter the glass or obstacles in the work area and create a water jet breach; S4. Activate the fire monitor and let its jet flow through the water jet vent to carry out fire extinguishing operations.

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