Movable smoke exhaust equipment for automatic building fire engineering

Abstract

The invention relates to the technical field of building fire engineering equipment, in particular to automatic movable smoke exhaust equipment for building fire engineering, which comprises a support frame, a water tank is fixedly mounted in the support frame, a shell is fixedly mounted in the support frame, and the shell is located at the top of the water tank. A smoke suction channel is fixedly connected to the front end of the shell, a storage box is fixedly installed in the supporting frame, located on the top of the shell and communicated with the smoke suction channel, a driving mechanism is installed in the shell, and a control assembly is installed on the tops of the smoke suction channel and the storage box. A fire extinguishing assembly is installed between the water tank and the smoke suction channel, fan blades are fixedly installed at the output end of the driving mechanism, and the fan blades are located in the smoke suction channel. According to the invention, automatic and accurate smoke discharge, smoke discharge and fire extinguishment collaborative operation and efficient smoke purification can be realized, and the intelligence and fire extinguishment rescue efficiency of fire-fighting smoke discharge equipment are improved.

Description

Technical Field

[0001] The invention relates to the technical field of building fire protection engineering equipment, and in particular to a mobile smoke exhaust device for automated building fire protection engineering. Background Art

[0002] Mobile smoke exhaust equipment used in building fire protection engineering is a key equipment for fire emergency response, and its role cannot be underestimated. When a fire occurs, a large amount of thick smoke will quickly be generated in the building. This thick smoke will not only reduce visibility and hinder the evacuation of people, but also contain a large amount of toxic and harmful gases, such as carbon monoxide and hydrogen cyanide, which pose a serious threat to the life and health of trapped people.

[0003] Chinese invention patent CN117588820A discloses a fire smoke exhaust facility for building fire protection engineering, including a smoke exhaust pipe, the smoke exhaust pipe including a main pipe, the main pipe is installed on the indoor top of the building, and both sides of the main pipe are connected to smoke inlet components, the top of the main pipe is connected to a manifold, the manifold is connected to an exhaust component, and the exhaust component is arranged outside the building; the smoke inlet component includes an air collecting hood, the internal rotation of the air collecting hood is connected to a fan blade component, the fan blade component includes a positioning shaft, and the positioning shaft is sleeved with a spring and a sealing cover. This new type of fire smoke exhaust facility for building fire protection engineering can discharge high-temperature smoke more effectively through the design of the air collecting hood and the fan blade component; the fan blade component generates suction when the smoke flows, further accelerating the discharge speed of the smoke; in addition, the device also realizes real-time adjustment of the fire source location and smoke concentration through thermal sensitive elements and spring mechanisms, thereby improving the adaptive ability.

[0004] However, the above patent cannot automatically control the size of smoke exhaust according to the smoke and fog, and needs to be manually adjusted. It is difficult to accurately judge the smoke concentration manually. If the smoke exhaust volume is too small, the smoke cannot be discharged in time and effectively, which will cause smoke accumulation in the building, affecting the smooth progress of rescue and evacuation work; if the smoke exhaust volume is too large, it may change the airflow direction at the fire scene, accelerate the spread of the fire, and even involve flammable materials in the unburned area into the flames, further expanding the scope of the fire. Secondly, there is an obvious lag in manual adjustment. It takes a certain amount of time from discovering the change in smoke concentration to making an adjustment response. During this period, the smoke condition may have changed significantly, and it is impossible to adapt to the needs of dynamic changes at the fire scene in time, which seriously affects the use effect of the smoke exhaust equipment and reduces the efficiency and success rate of fire rescue. Summary of the invention

[0005] In view of this, the present invention provides a mobile smoke exhaust device for automated building fire protection engineering, the main technical problem to be solved is that the existing equipment cannot automatically control the size of the smoke exhaust according to the smoke and fog.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a mobile smoke exhaust device for automated building fire protection engineering, comprising a support frame, a water tank is fixedly installed inside the support frame, a shell is fixedly installed inside the support frame, the shell is located on the top of the water tank, a smoking channel is fixedly connected to the front end of the shell, a storage box is fixedly installed inside the support frame, the storage box is located on the top of the shell and is connected to the smoking channel, a driving mechanism is installed inside the shell, a control component is installed on the smoking channel and the top of the storage box, a fire extinguishing component is installed between the water tank and the smoking channel, and a fan blade is fixedly installed on the output end of the driving mechanism, and the fan blade is located inside the smoking channel; The driving mechanism includes a mounting frame, a driving motor, a driving shaft, an output shaft, a first driving gear, a first speed gear, a second driving gear, a second speed gear, a third driving gear, a third speed gear, a fourth driving gear and a fourth speed gear. The mounting frame is movably mounted inside the shell, the driving motor is fixedly mounted inside the mounting frame, the driving shaft is movably mounted inside the mounting frame and fixedly mounted on the output end of the driving motor, the output shaft is movably mounted inside the shell and is located on one side of the driving shaft, the first driving gear, the second driving gear, the third driving gear and the fourth driving gear are fixedly connected to the driving shaft in sequence, the first speed gear, the second speed gear, the third speed gear and the fourth speed gear are fixedly connected to the outer wall of the output shaft in sequence, the first driving gear and the first speed gear can be meshed with each other, the second driving gear and the second speed gear can be meshed with each other, the third driving gear and the third speed gear can be meshed with each other, and the fourth driving gear and the fourth speed gear can be meshed with each other.

[0007] Further: the driving mechanism also includes a connecting rod, a roller, a limit block, a limit groove and an inclined groove, the connecting rod has four fixed connections at the upper and lower ends of the mounting frame, the roller is movably installed at the end of the connecting rod away from the mounting frame, the limit block has two fixed connections at the upper and lower ends of the inner wall of the outer shell, the limit groove has multiple openings inside the limit block, the inclined groove is opened on one side of the limit groove, and the roller is located inside the limit groove.

[0008] Further: the driving mechanism also includes a spring, a mounting block and a roller, the spring has multiple fixed installations on the inner wall of the shell, the mounting block has two fixed installations on the inner wall of the shell, the roller has multiple movably installed inside the mounting block, and the outer wall of the mounting frame is in contact with the roller.

[0009] Further: the control component includes a support plate, a smoke sensor, a PLC control module, an electric push rod and a signal line, the support plate is fixedly connected to the top of the smoking channel and the storage box, the smoke sensor is fixedly installed at the front end of the top of the support plate, the PLC control module is fixedly installed inside the shell, the electric push rod is fixedly installed inside the shell, the mounting frame is located at the front end of the electric push rod, and a signal line is connected between the smoke sensor, the PLC control module and the electric push rod.

[0010] Further: the control component also includes a moving block and a moving groove, the moving block is fixedly connected to the front end of the push rod of the electric push rod, the moving groove is opened at the rear end of the mounting frame, and the moving block is located inside the moving groove.

[0011] Further: the fire extinguishing assembly includes a sealing block, a water inlet pipe, a drain pipe, a paddle, an annular water outlet pipe, a nozzle and an annular bracket, the sealing block is fixedly connected to the front end of the shell and is located at the top of the water tank, the water inlet pipe is fixedly connected to the bottom of the sealing block, the water inlet end of the water inlet pipe is located inside the water tank, the drain pipe is fixedly connected to the top of the sealing block, the paddle is fixedly connected to the outer wall of the output shaft and is located inside the sealing block, the annular water outlet pipe is fixedly connected to the water outlet end of the drain pipe, the nozzle has a plurality of annular fixed connections at the front end of the annular water outlet pipe, the annular bracket is fixedly connected to the outer walls of a plurality of nozzles, and the nozzle passes through the smoking channel.

[0012] Furthermore: a water injection hole is opened on the top of the water tank, and a plug is fixedly installed inside the water injection hole.

[0013] Furthermore: the front end of the output shaft is fixedly connected with a fan blade, the fan blade is located at the front end of the blade, and the rear end of the storage box is bolted with a filter plate.

[0014] Further: the filter plate includes a HEPA filter paper layer, an aluminum hydroxide fiber felt layer and an activated carbon layer, the HEPA filter paper layer is located on the side close to the storage box, the aluminum hydroxide fiber felt layer is located at the rear end of the HEPA filter paper layer, and the activated carbon layer is located at the rear end of the aluminum hydroxide fiber felt layer.

[0015] Further: a first movable bracket is fixedly connected inside the mounting frame, a second movable bracket is fixedly connected inside the housing, the drive shaft is movably mounted inside the first movable bracket, and the output shaft is movably mounted inside the second movable bracket.

[0016] Further: push handles are fixedly connected to both sides of the outer wall of the support frame, and a plurality of universal wheels are fixedly installed on the top of the support frame.

[0017] By means of the above technical solution, the mobile smoke exhaust equipment for automated building fire protection engineering of the present invention has at least the following beneficial effects: 1. Compared with the prior art, a mounting frame, a drive shaft, an output shaft, a first drive gear, a first speed gear, a second drive gear, a second speed gear, a control component and an electric push rod are provided. When in use, when the control component detects smoke, the PLC control module controls the electric push rod to push the mounting frame to move, driving the drive shaft to move forward. In the initial state, the first drive gear is separated from the first speed gear. When the mounting frame moves a certain distance, the first drive gear is meshed with the first speed gear. At this time, the output shaft obtains the first gear speed. If the smoke concentration continues to increase, the electric push rod continues to push the mounting frame to move, so that the second drive gear is meshed with the second speed gear, and the output shaft speed is increased to the second gear. By analogy, the output shaft speed can be adjusted in multiple gears by sequentially meshing different drive gears with speed gears, thereby controlling the speed of the fan blades, and automatically adjusting the smoke exhaust volume according to the smoke concentration, while at the same time through the rotation of the output shaft. The present invention can automatically adjust the output shaft speed according to the smoke concentration, and then control the speed of the fan blades. In this way, the smoke exhaust volume can be accurately adjusted according to the actual smoke concentration, ensuring that the smoke exhaust effect is always in the best state, avoiding insufficient or excessive smoke exhaust to cause adverse effects on fire rescue, improving the automation and adaptability of the smoke exhaust equipment, and providing more powerful support for firefighting and rescue work.

[0018] 2. Compared with the prior art, by setting a water tank, an output shaft, an electric push rod, a sealing block, a water inlet pipe, a drain pipe, a paddle, an annular water outlet pipe and a nozzle, the rotation of the output shaft drives the paddle to rotate, and the paddle forms a negative pressure in the sealing block, so that the water in the water tank enters the sealing block through the water inlet pipe, and then enters the annular water outlet pipe through the drain pipe, and finally sprays out from multiple nozzles. As the smoke concentration increases, the PLC control module controls the electric push rod to speed up the output shaft, increase the paddle speed, increase the water pressure, and spray water farther, so as to achieve the coordinated operation of smoke exhaust and fire extinguishing. The present invention realizes the water spraying fire extinguishing function while exhausting smoke, and can automatically adjust the water pressure of the water spray according to the smoke concentration, effectively responding to different fire and smoke conditions at the fire scene, enhancing the versatility and practicality of the equipment, improving the efficiency and effect of fire fighting, and reducing the losses caused by the fire.

[0019] 3. Compared with the prior art, by setting a storage box, a filter plate, an aluminum hydroxide fiber felt layer, an activated carbon layer and a fan blade, after the smoke is sucked into the storage box by the fan blade, it passes through the HEPA filter paper layer in the filter plate in turn to filter out most of the particulate matter in the smoke, then passes through the aluminum hydroxide fiber felt layer to adsorb acidic gases, and finally passes through the activated carbon layer to adsorb organic volatiles and odors. After three layers of filtration, the air is discharged from the device, which reduces pollution to the environment and harm to personnel health. In the present invention, after filtering through the filter plate, the content of particulate matter in the discharged air is greatly reduced, harmful gases are effectively removed, pollution to the environment is reduced, and the discharged smoke is prevented from having an adverse effect on the air quality in the surrounding area, which meets environmental protection requirements, and also prevents secondary pollution, which is beneficial to protecting the health of rescue personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the first viewing angle structure proposed by the present invention; Figure 2 This is a schematic diagram of the second viewing angle structure proposed by the present invention; Figure 3 This is an enlarged structural schematic diagram of the driving mechanism proposed by the present invention; Figure 4 It is a schematic diagram of the enlarged structure of some parts in the driving mechanism proposed by the present invention; Figure 5 for Figure 4 The enlarged structural diagram at A in the middle; Figure 6 This is a schematic diagram of the enlarged structure of the control component proposed by the present invention; Figure 7 for Figure 6 The enlarged structural diagram at B in the middle; Figure 8 This is a schematic diagram of the connection relationship between the electric push rod and the mounting frame proposed by the present invention; Fig. 9 This is a schematic diagram of the cross-sectional structure of the smoking channel and the storage box proposed by the present invention; Fig.10 for Fig. 9 The enlarged structural diagram at C in the middle; Fig.11 This is an enlarged structural schematic diagram of the fire extinguishing assembly proposed by the present invention.

[0021] Legend: 1. Support frame; 101. Push handle; 102. Universal wheel; 2. Water tank; 201. Water injection hole; 3. Shell; 4. Smoking channel; 5. Storage box; 501. Filter plate; 502. HEPA filter paper layer; 503. Aluminum hydroxide fiber felt layer; 504. Activated carbon layer; 6. Driving mechanism; 601. Mounting frame; 602. Driving motor; 603. Driving shaft; 604. Output shaft; 605. First driving gear; 606. First speed gear; 607. Second driving gear; 608. Second speed gear; 609. Third driving gear; 610. Third speed gear; 611. Fourth driving gear; 612. Fourth speed gear ;613, connecting rod;614, roller;615, limit block;616, limit groove;617, inclined groove;618, spring;619, mounting block;620, roller;621, first movable bracket;622, second movable bracket;7, control component;701, support plate;702, smoke sensor;703, PLC control module;704, electric push rod;705, signal line;706, moving block;707, moving groove;8, fire extinguishing component;801, sealing block;802, water inlet pipe;803, drain pipe;804, paddle;805, annular water outlet pipe;806, nozzle;807, annular bracket;9, fan blade. DETAILED DESCRIPTION

[0022] Reference Figure 1-11The present invention provides a mobile smoke exhaust device for automated building fire protection engineering: comprising a support frame 1, a water tank 2 is fixedly installed inside the support frame 1, a shell 3 is fixedly installed inside the support frame 1, the shell 3 is located on the top of the water tank 2, a smoking passage 4 is fixedly connected to the front end of the shell 3, a storage box 5 is fixedly installed inside the support frame 1, the storage box 5 is located on the top of the shell 3 and is connected to the smoking passage 4, a driving mechanism 6 is installed inside the shell 3, a control component 7 is installed on the top of the smoking passage 4 and the storage box 5, a fire extinguishing component 8 is installed between the water tank 2 and the smoking passage 4, a fan blade 9 is fixedly installed on the output end of the driving mechanism 6, and the fan blade 9 is located inside the smoking passage 4; the driving mechanism 6 comprises a mounting frame 601, a driving motor 602, a driving shaft 603, an output shaft 604, a first driving gear 605, a first speed gear 606, a second driving gear 607, a second speed gear 608, a third driving gear 609, a third speed gear 610, and a fourth driving gear 611 and the fourth speed gear 612, the mounting frame 601 is movably mounted inside the housing 3, the driving motor 602 is fixedly mounted inside the mounting frame 601, the driving shaft 603 is movably mounted inside the mounting frame 601 and fixedly mounted on the output end of the driving motor 602, the output shaft 604 is movably mounted inside the housing 3 and is located on one side of the driving shaft 603, the first driving gear 605, the second driving gear 607, the third driving gear 609 and the fourth driving gear 611 are fixedly connected to the driving shaft 603 in sequence, the first speed gear 606, the second speed gear 608, the third speed gear 610 and the fourth speed gear 612 are fixedly connected to the outer wall of the output shaft 604 in sequence, the first driving gear 605 and the first speed gear 606 can be meshed with each other, the second driving gear 607 and the second speed gear 608 can be meshed with each other, the third driving gear 609 and the third speed gear 610 can be meshed with each other, and the fourth driving gear 611 and the fourth speed gear 612 can be meshed with each other.

[0023] During use, when the control component 7 detects smoke, the PLC control module 703 controls the electric push rod 704 to push the mounting frame 601 to move, driving the drive shaft 603 to move forward. In the initial state, the first driving gear 605 is separated from the first speed gear 606. When the mounting frame 601 moves a certain distance, the first driving gear 605 is meshed with the first speed gear 606. At this time, the output shaft 604 obtains the first gear speed; if the smoke concentration continues to increase, the electric push rod 704 continues to push the mounting frame 601 to move, so that the second driving gear 607 is meshed with the second speed gear 608, and the speed of the output shaft 604 is increased to the second gear. Similarly, the speed of the output shaft 604 is adjusted in multiple gears through the sequential meshing of different driving gears and speed gears, thereby controlling the speed of the fan blades 9 to achieve automatic adjustment of the smoke exhaust volume according to the smoke concentration. At the same time, through the rotation of the output shaft 604, the fire extinguishing component 8 can be driven to open and extinguish the fire source.

[0024] The driving mechanism 6 also includes a connecting rod 613, a roller 614, a limit block 615, a limit groove 616 and an inclined groove 617. The connecting rod 613 has four fixed connections at the upper and lower ends of the mounting frame 601, the roller 614 is movably installed at the end of the connecting rod 613 away from the mounting frame 601, the limit block 615 has two fixed connections at the upper and lower ends of the inner wall of the outer shell 3, the limit groove 616 has multiple openings inside the limit block 615, the inclined groove 617 is opened on one side of the limit groove 616, and the roller 614 is located inside the limit groove 616.

[0025] When the drive shaft 603 needs to be moved to achieve speed change, if the mounting frame 601 is directly moved horizontally, it will be blocked due to the different gear rotation speeds. Therefore, when the mounting frame 601 moves, the roller 614, under the action of the inclined groove 617, first moves the mounting frame 601 outward for a certain distance to escape the meshing restriction of some gears, and then moves forward along the inclined groove 617, so that the corresponding driving gear on the drive shaft 603 and the speed gear on the output shaft 604 can smoothly mesh to achieve speed change, and finally, under the action of the spring 618, the mounting frame 601 returns to the previous position along the inclined groove 617, completing a speed change operation, ensuring the smooth progress of the speed change process of the driving mechanism 6.

[0026] The driving mechanism 6 also includes a spring 618, a mounting block 619 and a roller 620. The spring 618 has multiple fixed installations on the inner wall of the outer shell 3, the mounting block 619 has two fixed installations on the inner wall of the outer shell 3, the roller 620 has multiple movably installed inside the mounting block 619, and the outer wall of the mounting frame 601 is in contact with the roller 620.

[0027] After the mounting frame 601 moves outward, the spring 618 is compressed to store elastic potential energy. When the roller 614 moves to the appropriate position of the previous limit groove 616, the spring 618 releases the elastic potential energy and pushes the mounting frame 601 back to the initial position along the inclined groove 617; the roller 620 rolls in the mounting block 619 to reduce the friction resistance of the mounting frame 601 when it moves, so that the mounting frame 601 can return to the predetermined position smoothly and quickly, preparing for the next speed change operation, and ensuring that the drive mechanism 6 can operate stably and reliably.

[0028] The control component 7 includes a support plate 701, a smoke sensor 702, a PLC control module 703, an electric push rod 704 and a signal line 705. The support plate 701 is fixedly connected to the top of the smoking channel 4 and the storage box 5. The smoke sensor 702 is fixedly installed at the front end of the top of the support plate 701. The PLC control module 703 is fixedly installed inside the shell 3. The electric push rod 704 is fixedly installed inside the shell 3. The mounting frame 601 is located at the front end of the electric push rod 704. A signal line 705 is connected between the smoke sensor 702, the PLC control module 703 and the electric push rod 704. The specific model of the smoke sensor 702 is an MQ-2 smoke sensor.

[0029] When a fire occurs, when the gas molecules in the smoke are adsorbed on the surface of the sensor, they will interact with the semiconductor material on the smoke sensor 702, causing the resistance of the semiconductor to change, thereby causing the sensor output signal to change. Then the PLC control module 703 collects the sensor 702 signal through the signal line 705 and then controls the electric push rod 704. Through the built-in control program of the PLC control module 703, the stroke of the electric push rod 704 can be controlled according to the different signal values ​​of the smoke concentration, thereby achieving the function of pushing farther when the smoke is thicker and closer when the smoke is thinner.

[0030] The control component 7 also includes a moving block 706 and a moving slot 707 . The moving block 706 is fixedly connected to the front end of the electric push rod 704 . The moving slot 707 is opened at the rear end of the mounting frame 601 . The moving block 706 is located inside the moving slot 707 .

[0031] When the electric push rod 704 pushes the mounting frame 601, the moving block 706 moves in the moving groove 707. Due to the shape and size design of the moving groove 707, the moving block 706 can cause a certain angular offset of the mounting frame 601 during the movement. This offset can compensate for the slight deviation that may occur during the gear meshing process, ensuring that the driving gear on the driving shaft 603 and the speed gear on the output shaft 604 can mesh smoothly and accurately, thereby improving the reliability and stability of the speed change operation of the driving mechanism 6.

[0032] The fire extinguishing assembly 8 includes a sealing block 801, a water inlet pipe 802, a drain pipe 803, a paddle 804, an annular water outlet pipe 805, a nozzle 806 and an annular bracket 807. The sealing block 801 is fixedly connected to the front end of the shell 3 and is located at the top of the water tank 2. The water inlet pipe 802 is fixedly connected to the bottom of the sealing block 801. The water inlet end of the water inlet pipe 802 is located inside the water tank 2. The drain pipe 803 is fixedly connected to the top of the sealing block 801. The paddle 804 is fixedly connected to the outer wall of the output shaft 604 and is located inside the sealing block 801. The annular water outlet pipe 805 is fixedly connected to the water outlet end of the drain pipe 803. The nozzle 806 has multiple annular nozzles fixedly connected to the front end of the annular water outlet pipe 805. The annular bracket 807 is fixedly connected to the outer walls of multiple nozzles 806. The nozzle 806 passes through the smoking channel 4.

[0033] When the output shaft 604 rotates, the paddle 804 is driven to rotate synchronously. The rotation of the paddle 804 forms a negative pressure in the sealing block 801, so that the water in the water tank 2 enters the sealing block 801 through the water inlet pipe 802 under the action of atmospheric pressure, and then enters the annular water outlet pipe 805 through the drain pipe 803, and finally is sprayed out from multiple nozzles 806. As the speed of the output shaft 604 changes, the speed of the paddle 804 also changes accordingly, thereby affecting the water pressure and flow rate. The water pressure increases and the water spraying distance is farther, thereby realizing the coordinated operation of the smoke exhaust and fire extinguishing functions, and automatically adjusting the water spraying pressure according to the smoke concentration to effectively respond to different situations at the fire scene.

[0034] A water injection hole 201 is provided on the top of the water tank 2 , and a plug is fixedly installed inside the water injection hole 201 .

[0035] The water injection hole 201 is used to inject water into the water tank 2. Before normal equipment maintenance or use, an appropriate amount of water can be injected into the water tank 2 through the water injection hole 201 to meet the fire extinguishing needs. The plug prevents debris and dust from entering the water tank 2 through the water injection hole 201 when the equipment is operating normally.

[0036] The front end of the output shaft 604 is fixedly connected with a fan blade 9, and the fan blade 9 is located at the front end of the blade 804. The rear end of the storage box 5 is bolted with a filter plate 501.

[0037] After the driving motor 602 is started, the power is transmitted to the fan blades 9 through the driving shaft 603 and the output shaft 604. The fan blades 9 rotate at high speed, generating negative pressure in the smoking passage 4, and sucking the smoke from the fire scene into the device. The filter plate 501 filters the inhaled smoke to remove harmful components and particulate matter, and then the filtered dust and debris are stored in the storage box 5. After use, the filter plate 501 is removed, and then the dust and debris in the storage box 5 are cleaned.

[0038] The filter plate 501 includes a HEPA filter paper layer 502 , an aluminum hydroxide fiber felt layer 503 and an activated carbon layer 504 . The HEPA filter paper layer 502 is located on a side close to the storage box 5 , the aluminum hydroxide fiber felt layer 503 is located at the rear end of the HEPA filter paper layer 502 , and the activated carbon layer 504 is located at the rear end of the aluminum hydroxide fiber felt layer 503 .

[0039] During filtering, the HEPA filter paper layer 502 can effectively filter out larger particles in the smoke, such as dust and carbon particles, by utilizing its tiny pore structure, thus greatly reducing the content of solid impurities in the smoke; the aluminum hydroxide fiber felt layer 503 has a strong acid gas adsorption capacity and can react chemically with acid gases such as sulfur dioxide in the smoke, adsorbing and fixing them on the fiber felt, thereby reducing the acidity and corrosiveness of the smoke; the activated carbon layer 504 has a good adsorption effect on organic volatiles and odors in the smoke, such as formaldehyde, benzene and other harmful substances, by virtue of its huge specific surface area and rich pore structure; after these three layers of filtration, the particulate matter content in the exhausted air is greatly reduced, and harmful gases are effectively removed, making the exhausted air cleaner and safer, reducing pollution to the environment, and protecting the health of rescuers.

[0040] A first movable bracket 621 is fixedly connected inside the mounting frame 601 , a second movable bracket 622 is fixedly connected inside the housing 3 , the driving shaft 603 is movably installed inside the first movable bracket 621 , and the output shaft 604 is movably installed inside the second movable bracket 622 .

[0041] The first movable bracket 621 provides stable support and rotation axis for the drive shaft 603, so that it can rotate flexibly in the mounting frame 601, ensuring that the power output by the drive motor 602 can be stably transmitted to the various drive gears on the drive shaft 603; the second movable bracket 622 plays the same supporting and positioning role for the output shaft 604, ensuring that the output shaft 604 can accurately mesh with the gears on the drive shaft 603 in the housing 3, and will not deviate or shake during high-speed rotation, thereby improving the overall transmission efficiency and stability of the drive mechanism 6.

[0042] Push handles 101 are fixedly connected to both sides of the outer wall of the support frame 1, and a plurality of universal wheels 102 are fixedly installed on the top of the support frame 1.

[0043] The push handle 101 makes it convenient for the operator to push the device to a suitable position at the fire scene, so that it can quickly respond to the smoke exhaust needs of different areas; the universal wheel 102 gives the device good maneuverability and flexibility, and can move smoothly in various complex ground environments. For example, at a fire scene with obstacles or uneven ground, the device can easily bypass the obstacles and adjust its position, ensuring that the smoke exhaust equipment can quickly reach the vicinity of the smoke source, and carry out smoke exhaust and fire extinguishing work in a timely and effective manner, thereby improving the practicability and adaptability of the equipment.

[0044] Working principle: When a fire occurs, the smoke sensor 702 monitors the smoke concentration in the surrounding environment in real time. When smoke is detected, the gas molecules in the smoke are adsorbed on the surface of the smoke sensor 702 and interact with the semiconductor material on the smoke sensor 702, causing the semiconductor resistance to change, generating a corresponding electrical signal and transmitting it to the PLC control module 703 through the signal line 705. The PLC control module 703 analyzes and processes the signal and calculates the distance that the electric push rod 704 should push based on the preset relationship between the smoke concentration and the stroke of the electric push rod 704.

[0045] Next, the PLC control module 703 sends a control command to the electric push rod 704, and the moving block 706 at the front end of the push rod of the electric push rod 704 moves in the moving slot 707 at the rear end of the mounting frame 601, pushing the mounting frame 601 to move. The rollers 614 on the connecting rods 613 at the upper and lower ends of the mounting frame 601 first move outward a certain distance under the action of the limit slots 616 and the inclined slots 617 inside the limit blocks 615, so that the drive shaft 603 is disengaged from the meshing restriction of some gears, and then move forward, so that the corresponding drive gear on the drive shaft 603 is meshed with the speed change gear on the output shaft 604, so as to increase the speed of the output shaft 604. After the speed change is completed, the spring 618 pushes the mounting frame 601 back to the previous position along the inclined slot 617 to prepare for the next speed change operation.

[0046] Then, the driving motor 602 is started, and the power is transmitted to the fan blades 9 through the driving shaft 603 and the output shaft 604. The fan blades 9 rotate at high speed, generating negative pressure in the smoking channel 4, and sucking the smoke at the fire scene into the device.

[0047] At the same time, the rotation of the output shaft 604 drives the paddle 804 to rotate, and the paddle 804 forms a negative pressure in the sealing block 801, so that the water in the water tank 2 enters the sealing block 801 through the water inlet pipe 802, and then enters the annular water outlet pipe 805 through the drain pipe 803, and finally is sprayed out from multiple nozzles 806. As the smoke concentration increases, the PLC control module 703 controls the electric push rod 704 to increase the speed of the output shaft 604, the speed of the paddle 804 increases, the water pressure increases, and the water spraying distance is farther, thereby realizing the coordinated operation of smoke exhaust and fire extinguishing.

[0048] After the inhaled smoke enters the storage box 5, it passes through the HEPA filter paper layer 502 in the filter plate 501 to filter out most of the particulate matter in the smoke, then passes through the aluminum hydroxide fiber felt layer 503 to adsorb acidic gases, and finally passes through the activated carbon layer 504 to adsorb organic volatiles and odors. The air after three layers of filtration is discharged from the equipment, reducing pollution to the environment and harm to personnel health.

[0049] At the same time, the operator can move the device to a suitable position through the push handle 101 and the universal wheel 102, so as to flexibly adjust the operating range of smoke exhaust and fire extinguishing at the fire scene and efficiently deal with fire accidents.

[0050] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mobile smoke exhaust device for automated building fire protection engineering, comprising a support frame (1), characterized in that: A water tank (2) is fixedly mounted inside the support frame (1), a housing (3) is fixedly mounted inside the support frame (1), the housing (3) is located on the top of the water tank (2), a front end of the housing (3) is fixedly connected to a smoking passage (4), a storage box (5) is fixedly mounted inside the support frame (1), the storage box (5) is located on the top of the housing (3) and is connected to the smoking passage (4), a driving mechanism (6) is mounted inside the housing (3), a control component (7) is mounted on the top of the smoking passage (4) and the storage box (5), a fire extinguishing component (8) is mounted between the water tank (2) and the smoking passage (4), a fan blade (9) is fixedly mounted on the output end of the driving mechanism (6), and the fan blade (9) is located inside the smoking passage (4); The driving mechanism (6) comprises a mounting frame (601), a driving motor (602), a driving shaft (603), an output shaft (604), a first driving gear (605), a first speed gear (606), a second driving gear (607), a second speed gear (608), a third driving gear (609), a third speed gear (610), a fourth driving gear (611) and a fourth speed gear (612); the mounting frame (601) is movably mounted inside the housing (3); the driving motor (602) is fixedly mounted inside the mounting frame (601); the driving shaft (603) is movably mounted inside the mounting frame (601) and fixedly mounted at the output end of the driving motor (602); and the output shaft (604) is movably mounted inside the housing (3) and is located at the output end of the driving motor (602). On one side of the driving shaft (603), the first driving gear (605), the second driving gear (607), the third driving gear (609) and the fourth driving gear (611) are fixedly connected to the driving shaft (603) in sequence, the first speed change gear (606), the second speed change gear (608), the third speed change gear (610) and the fourth speed change gear (612) are fixedly connected to the outer wall of the output shaft (604) in sequence, the first driving gear (605) and the first speed change gear (606) can mesh with each other, the second driving gear (607) and the second speed change gear (608) can mesh with each other, the third driving gear (609) and the third speed change gear (610) can mesh with each other, and the fourth driving gear (611) and the fourth speed change gear (612) can mesh with each other.

2. The mobile smoke exhaust equipment for automated building fire protection engineering according to claim 1 is characterized by: The driving mechanism (6) further comprises a connecting rod (613), a roller (614), a limiting block (615), a limiting groove (616) and an inclined groove (617); the connecting rod (613) has four ends fixedly connected to the upper and lower ends of the mounting frame (601); the roller (614) is movably mounted on one end of the connecting rod (613) away from the mounting frame (601); the limiting block (615) has two ends fixedly connected to the upper and lower ends of the inner wall of the housing (3); a plurality of limiting grooves (616) are opened inside the limiting block (615); the inclined groove (617) is opened on one side of the limiting groove (616); and the roller (614) is located inside the limiting groove (616).

3. The mobile smoke exhaust equipment for automated building fire protection engineering according to claim 1 is characterized by: The driving mechanism (6) further comprises a spring (618), a mounting block (619) and a roller (620); the spring (618) has a plurality of portions fixedly mounted on the inner wall of the housing (3); the mounting block (619) has two portions fixedly mounted on the inner wall of the housing (3); the roller (620) has a plurality of portions movably mounted inside the mounting block (619); and the outer wall of the mounting frame (601) is in contact with the roller (620).

4. The mobile smoke exhaust equipment for automated building fire protection engineering according to claim 1 is characterized by: The control assembly (7) comprises a support plate (701), a smoke sensor (702), a PLC control module (703), an electric push rod (704) and a signal line (705); the support plate (701) is fixedly connected to the top of the smoking passage (4) and the storage box (5); the smoke sensor (702) is fixedly mounted on the front end of the top of the support plate (701); the PLC control module (703) is fixedly mounted inside the housing (3); the electric push rod (704) is fixedly mounted inside the housing (3); the mounting frame (601) is located at the front end of the electric push rod (704); and the signal line (705) is connected between the smoke sensor (702), the PLC control module (703) and the electric push rod (704).

5. The mobile smoke exhaust equipment for automated building fire protection engineering according to claim 4 is characterized by: The control assembly (7) further comprises a moving block (706) and a moving slot (707), wherein the moving block (706) is fixedly connected to the front end of the electric push rod (704), the moving slot (707) is opened at the rear end of the mounting frame (601), and the moving block (706) is located inside the moving slot (707).

6. The mobile smoke exhaust equipment for automated building fire protection engineering according to claim 1, characterized in that: The fire extinguishing assembly (8) comprises a sealing block (801), a water inlet pipe (802), a drain pipe (803), a paddle (804), an annular water outlet pipe (805), a nozzle (806) and an annular bracket (807), wherein the sealing block (801) is fixedly connected to the front end of the housing (3) and is located at the top of the water tank (2), the water inlet pipe (802) is fixedly connected to the bottom of the sealing block (801), the water inlet end of the water inlet pipe (802) is located inside the water tank (2), and the drain pipe (804) is fixedly connected to the bottom of the sealing block (801). 3) fixedly connected to the top of the sealing block (801), the paddle (804) is fixedly connected to the outer wall of the output shaft (604) and is located inside the sealing block (801), the annular water outlet pipe (805) is fixedly connected to the water outlet end of the drain pipe (803), the nozzle (806) has a plurality of annular shapes fixedly connected to the front end of the annular water outlet pipe (805), the annular bracket (807) is fixedly connected to the outer walls of the plurality of nozzles (806), and the nozzles (806) penetrate the smoking channel (4).

7. The mobile smoke exhaust equipment for automated building fire protection engineering according to claim 1 is characterized by: A water injection hole (201) is provided on the top of the water tank (2), and a plug is fixedly installed inside the water injection hole (201).

8. The mobile smoke exhaust equipment for automated building fire protection engineering according to claim 1 is characterized by: The front end of the output shaft (604) is fixedly connected to a fan blade (9), the fan blade (9) is located at the front end of the blade (804), and the rear end of the storage box (5) is bolted with a filter plate (501).

9. The mobile smoke exhaust equipment for automated building fire protection engineering according to claim 8, characterized in that: The filter plate (501) comprises a HEPA filter paper layer (502), an aluminum hydroxide fiber felt layer (503) and an activated carbon layer (504); the HEPA filter paper layer (502) is located on a side close to the storage box (5); the aluminum hydroxide fiber felt layer (503) is located at the rear end of the HEPA filter paper layer (502); and the activated carbon layer (504) is located at the rear end of the aluminum hydroxide fiber felt layer (503).

10. The mobile smoke exhaust equipment for automated building fire protection engineering according to claim 1, characterized in that: A first movable bracket (621) is fixedly connected to the interior of the mounting frame (601), a second movable bracket (622) is fixedly connected to the interior of the housing (3), the drive shaft (603) is movably mounted inside the first movable bracket (621), and the output shaft (604) is movably mounted inside the second movable bracket (622).

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