Atomized spray fire extinguishing device for fire emergency passage

Abstract

The application relates to the field of fire-fighting spraying technology and particularly discloses a misting and spraying fire-fighting device for a fire emergency passage. The device comprises an outer inclined ring plate, a plurality of shunt round holes are arranged on the outer side of the outer inclined ring plate, the top of the outer inclined ring plate is fixedly connected with the bottom of a lower concave shell, a plurality of spraying round holes are arranged on the bottom of the lower concave shell, and a plurality of shunt round holes are arranged on the outer side of the outer inclined ring plate. The misting and spraying fire-fighting device for the fire emergency passage divides the water flow sprayed from the spraying round holes into straight flow and diffusion spraying by arranging the outer inclined ring plate on the bottom of the lower concave shell, prevents the water flow intensity in the central area from being small and affecting the fire extinguishing effect when the device is used for fire-fighting and fire extinguishing in a larger fire area, and facilitates the shunting of the diffusion water flow by arranging a plurality of shunt round holes on the outer side of the outer inclined ring plate, so that the flow interruption phenomenon in the outermost side and the innermost side of the outer inclined ring plate is prevented, and the fire extinguishing effect in the area is improved.

Description

Technical Field

[0001] This invention relates to the field of fire sprinkler technology, specifically to a misting sprinkler fire-fighting device for fire emergency passages. Background Technology

[0002] Fire is an unexpected and unpredictable disaster. Therefore, to ensure that people can quickly evacuate to a safe area in the event of a fire, buildings should be equipped with necessary emergency passage facilities, such as fire doors, evacuation staircases, sky bridges, escape hatches, and evacuation protection areas. In addition, multiple sensor-operated sprinkler heads are fixedly installed on the walls and ceilings of fire emergency passages to assist in the escape of victims. Firefighting equipment refers to equipment used for fire extinguishing and fire prevention, including fire extinguishers, manual fire alarm buttons, fire hydrants, fire monitors, and fire sprinkler heads. Fire sprinkler heads are used in fire sprinkler systems. When a fire occurs, water is sprayed out through the sprinkler head's splash plate to extinguish the fire. Currently, they are divided into pendant sprinkler heads, upright sprinkler heads, ordinary sprinkler heads, and sidewall sprinkler heads, etc. Existing sprinkler heads typically employ a diffusion spray method for fire suppression. However, when fire suppression is applied to larger fire areas, the water flow intensity in the central area is relatively low, affecting the fire suppression effect. Therefore, we propose a misting spray fire suppression device for fire emergency passages. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a misting spray fire-fighting device for fire emergency passages, including an upper concave shell, a drive motor fixedly connected to the top of the upper concave shell, a drive shaft of the drive motor passing through the upper concave shell and fixedly connected to a switching diffusion mechanism, a gas-liquid separation mechanism connected to the top of the upper concave shell, an annular electric slide rail fixedly connected to the outer side of the upper concave shell, an internal pressure drainage mechanism rotatably connected to the inner side of the annular electric slide rail via a bearing, a lower concave shell fixedly connected to the inner side of the annular electric slide rail, a concave fixing rod fixedly connected to the outer side of the lower concave shell, and a spray hole opened at the bottom of the lower concave shell; The switching diffusion mechanism includes an outer inclined ring plate, which guides water flow to diffuse outward through the outer inclined surface of the outer inclined ring plate. A diversion hole is provided on the outer side of the outer inclined ring plate. By setting the diversion hole on the inclined surface of the outer inclined ring plate, a part of the guided water flow is intercepted and allowed to flow directly downward through the diversion hole. The bottom of the switching diffusion mechanism passes through the lower concave shell and is rotatably connected to the lower concave shell through a bearing. There are two gas-liquid separation mechanisms, and the two gas-liquid separation mechanisms are distributed on the upper concave shell. The end of the concave fixing rod away from the lower concave shell is fixedly connected to the outside of the upper concave shell. There are multiple spray holes, and the multiple spray holes are distributed at the bottom of the lower concave shell. The top of the outer inclined ring plate is fixedly connected to the bottom of the concave shell, and multiple diversion holes are provided, with the multiple diversion holes distributed on the outside of the outer inclined ring plate. The switching diffusion mechanism also includes a linkage rod, on the outside of which a sleeved circular plate is fitted and fixedly connected. The top of the sleeved circular plate has a liquid passage hole and an atomizing hole. The staggered distribution of the liquid passage hole and the atomizing hole allows for rapid switching between spraying and atomization. An external scraper is fixedly connected to the outside of the linkage rod. A concave inclined rod is fixedly connected to the end of the external scraper away from the linkage rod. When the concave inclined rod rotates with the linkage rod, its inner side makes close contact with the inner and outer surfaces of the outer inclined ring plate to scrape and clean it. An external scraper is fixedly connected to one side of the concave inclined rod. When the external scraper and the external scraper rotate with the linkage rod, their top surfaces make close contact with the bottom surface of the lower concave shell to scrape and clean them. The top of the linkage rod is fixedly connected to the drive shaft of the drive motor, and the bottom of the linkage rod passes through the concave shell and is rotatably connected to the concave shell through a bearing. Multiple liquid-passing circular holes are provided, and these holes are distributed on the sleeve-shaped circular plate and aligned with the spray holes. Multiple atomizing circular holes are provided, and these holes are distributed on the sleeve-shaped circular plate and staggered with the liquid-passing circular holes. Three external scraper rods are provided, and these three external scraper rods are located at the bottom of the concave shell, inside the outer inclined ring plate. Three external scraper rods are provided, and these three external scraper rods are located at the bottom of the concave shell, outside the outer inclined ring plate.

[0004] Furthermore, the gas-liquid separation mechanism includes annular connecting pipes. By setting two annular connecting pipes that can be automatically closed by a return spring and a circular plug, the output can be switched between air and liquid. This facilitates simultaneous sprinkler fire suppression and provides breathable air to escaping personnel. A cross-shaped ring plate is fixedly connected to the inner wall of the annular connecting pipe. A return spring is fixedly connected to the bottom of the cross-shaped ring plate, and a circular plug is fixedly connected to the bottom of the return spring. The return force of the return spring pulls the circular plug, which has lost its thrust, upwards to the inner wall of the annular connecting pipe, thus filling and sealing the bottom of the annular connecting pipe. This prevents the two annular connecting pipes from connecting and affecting the sprinkler effect when switching between air and liquid. As a result, a top limiting rod is fixedly connected to the top of the circular block. The top limiting rod, which is circumferentially distributed on the circular block and contacts the inner wall of the annular connecting tube, limits the vertical movement of the elastically connected circular block. A cross ring plate is fixedly connected to the top of the top limiting rod. The cross ring plate is set at the top of the top limiting rod and the cross ring plate to limit the downward movement distance of the circular block, so as to avoid excessive stretching of the return spring as the circular block moves downward and causing damage. The bottom of the annular connecting tube is connected to the top of the upper concave shell. Multiple top limiting rods are provided, and the multiple top limiting rods are distributed at the position where the top of the circular block contacts the inner wall of the annular connecting frame.

[0005] Furthermore, the internal pressure drainage mechanism includes an annular docking plate, with an inclined pressure plate fixedly connected to its inner side. When the inclined pressure plate rotates and applies thrust, its inclined surface guides the downward thrust, allowing water and air to be forcefully ejected from the spray nozzles. A top scraper is fixedly connected to the top of the inclined pressure plate, rotating with it and constantly contacting the inner wall of the upper concave shell to scrape and clean its surface. An inclined vertical rod is fixedly connected to the outer side of the inclined pressure plate, with a top scraper block fixedly connected to its top. The top scraper block contacts the top surface of the inner wall of the upper concave shell constantly as the inclined pressure plate rotates. The scraping and cleaning process involves a fixed arc-shaped elastic scraper on one side of the top scraper block. By setting an elastically deformable arc-shaped scraper between the two top scraper blocks, the scraper can remove the areas that the top scraper block cannot reach on the inner wall of the concave shell. At the same time, the arc-shaped elastic scraper will pass over the circular block through elastic deformation without getting stuck when it comes into contact with it. The outer side of the annular docking plate is rotatably connected to the inner side of the annular electric slide rail through a bearing. Three inclined pressure plates are provided, and the three inclined pressure plates are distributed on the inner side of the annular docking plate. Multiple inclined vertical rods are provided, and the multiple inclined vertical rods are symmetrically distributed on the outer side of the inclined pressure plates.

[0006] This invention provides a misting spray fire extinguishing device for emergency fire escape routes. It has the following beneficial effects: 1. This atomizing sprinkler fire extinguishing device for fire emergency passages divides the water flow from the spray holes into direct and diffused sprays by setting an outer inclined ring plate at the bottom of the concave shell. This prevents the water flow intensity in the central area from being too weak when extinguishing fires in larger fire areas, thus affecting the fire extinguishing effect. By supplying air into another annular connecting pipe, the air in the fire area is gradually increased, making it easier for escapers to breathe. This prevents the fire area from becoming filled with smoke and causing breathing difficulties for escapers, thus preventing safety hazards. When the inclined pressure plate pushes the water flow, it applies downward pushing force to the water flow through its inclined surface, pressurizing the water flow out of the spray holes and preventing the water flow from being too weak, which would result in a small diffusion range and affect the fire extinguishing effect.

[0007] 2. This atomizing sprinkler fire extinguishing device for fire emergency passages is equipped with a switching diffusion mechanism. An outer inclined ring plate at the bottom of the concave shell divides the water flow from the spray nozzles into direct and diffused sprays. This prevents the water flow intensity in the central area from being too weak when extinguishing fires in larger areas, thus improving the fire extinguishing effect. Multiple diversion holes on the outer side of the outer inclined ring plate facilitate the diversion of the diffused water flow, preventing flow interruption in the outermost and innermost areas of the outer inclined ring plate due to its coverage, which would result in poor fire extinguishing performance in those areas. External scraper rods one and two scrape the bottom surface of the concave shell as the linkage rod rotates, preventing excessive dust accumulation that could clog the spray nozzles if the device is not used for extended periods. Concave inclined rods also scrape the inner and outer sides of the outer inclined ring plate as the linkage rod rotates, preventing excessive dust accumulation that could clog the diversion holes if the device is not used for extended periods.

[0008] 3. This atomizing sprinkler fire extinguishing device for fire emergency passages is equipped with a gas-liquid separation mechanism. Multiple top-mounted limiting rods on the inner wall of the annular connecting pipe limit the movement of the elastically connected circular block, preventing uneven force distribution on the circular block when pushed by water flow, which could cause it to tilt and deviate, affecting its use. A cross-shaped ring plate at the top of the top-mounted limiting rods limits the downward movement of the circular block, preventing excessive stretching of the return spring and damage when a large water flow into the annular connecting pipe pushes the block downwards. The return force of the return spring allows the circular block to automatically move upwards and reset, blocking the annular connecting pipe. This prevents the two annular connecting pipes from interconnecting and affecting the sprinkler effect when gas or liquid needs to be supplied to another annular connecting pipe. Supplying air to the other annular connecting pipe gradually increases the air volume in the fire area, facilitating breathing for escapees and preventing the fire area from becoming filled with smoke and causing breathing difficulties and safety hazards if the fire lasts too long.

[0009] 4. This atomizing sprinkler fire suppression system for emergency fire escape routes is equipped with an internal pressure drainage mechanism. When the inclined pressure plate pushes the water flow, its inclined surface applies downward pressure to the water flow, pressurizing it and causing it to spray out of the sprinkler orifices. This prevents the water flow from being too weak, which would result in a small diffusion range and affect the fire suppression effect. The top scraper and inclined pressure plate, as the annular connecting plate rotates, scrape and clean the inner walls of the upper and lower concave shells, preventing residual grease from remaining on the inner walls of the upper and lower concave shells. Excessive liquid causes excessive moisture to be carried away when air is sprayed out. As the top scraper rotates with the annular docking plate, it scrapes and cleans the top surface of the inner wall of the upper concave shell to prevent excessive liquid adhering to the top surface of the inner wall of the upper concave shell from failing to drain from the spray hole and affecting subsequent air spraying operations. By setting an elastic and deformable arc-shaped scraper between the two top scrapers to scrape and clean the top surface of the inner wall of the upper concave shell, it is possible to prevent liquid adhering to the circumferential area connected to the annular docking pipe from being difficult to clean. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the atomizing spray fire-fighting device of the present invention; Figure 2 This is a schematic diagram of the bottom side section of the atomizing spray fire-fighting device of the present invention; Figure 3 This is a schematic diagram of the switching diffusion mechanism of the present invention; Figure 4 This is a schematic diagram of the bottom structure of the switching diffusion mechanism of the present invention; Figure 5 This is a schematic diagram of the bottom structure of the gas-liquid separation mechanism of the present invention; Figure 6 This is a side cross-sectional view of the gas-liquid separation mechanism of the present invention; Figure 7 This is a partial structural diagram of the internal pressure drainage mechanism of the present invention; Figure 8 This is a schematic diagram of the internal pressure drainage mechanism of the present invention.

[0011] In the diagram: 1. Upper concave shell; 2. Drive motor; 3. Switching diffusion mechanism; 4. Gas-liquid separation mechanism; 5. Annular electric slide rail; 6. Internal pressure drainage mechanism; 7. Lower concave shell; 8. Concave fixing rod; 9. Spray hole; 301. Outer inclined ring plate; 302. Diversion hole; 303. Linkage rod; 304. Sleeve-type circular plate; 305. Liquid passage hole; 306. Atomizing hole; 307. External scraper. 1. 308. Concave diagonal bar; 309. External scraper bar II; 401. Annular connecting pipe; 402. Cross ring plate I; 403. Retraction spring; 404. Circular block; 405. Top-mounted limiting rod; 406. Cross ring plate II; 601. Annular connecting plate; 602. Sloping pressure plate; 603. Top-mounted scraper bar; 604. Sloping vertical bar; 605. Top-mounted scraper block; 606. Arc-shaped elastic scraper blade. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] Please see Figures 1-4 This invention provides a misting spray fire-fighting device for fire emergency passages, including an upper concave shell 1, a drive motor 2 fixedly connected to the top of the upper concave shell 1, a drive shaft of the drive motor 2 passing through the upper concave shell 1 and fixedly connected to a switching diffusion mechanism 3, a gas-liquid separation mechanism 4 connected to the top of the upper concave shell 1, an annular electric slide rail 5 fixedly connected to the outside of the upper concave shell 1, an internal pressure drainage mechanism 6 rotatably connected to the inside of the annular electric slide rail 5 through a bearing, a lower concave shell 7 fixedly connected to the inside of the annular electric slide rail 5, a concave fixing rod 8 fixedly connected to the outside of the lower concave shell 7, and a spray hole 9 opened at the bottom of the lower concave shell 7. The switching diffusion mechanism 3 includes an outer inclined ring plate 301, and a diversion circular hole 302 is provided on the outer side of the outer inclined ring plate 301. The bottom of the switching diffusion mechanism 3 passes through the lower concave shell 7 and is rotatably connected to the lower concave shell 7 through a bearing. There are two gas-liquid separation mechanisms 4, and the two gas-liquid separation mechanisms 4 are distributed on the upper concave shell 1. The end of the concave fixing rod 8 away from the lower concave shell 7 is fixedly connected to the outside of the upper concave shell 1. There are multiple spray holes 9, and the multiple spray holes 9 are distributed at the bottom of the lower concave shell 7. The top of the outer inclined ring plate 301 is fixedly connected to the bottom of the lower concave shell 7. Multiple diversion holes 302 are provided, and the multiple diversion holes 302 are distributed on the outside of the outer inclined ring plate 301. The switching diffusion mechanism 3 also includes a linkage rod 303. A sleeved circular plate 304 is sleeved and fixedly connected to the outside of the linkage rod 303. A liquid passage circular hole 305 is opened at the top of the sleeved circular plate 304. An atomizing circular hole 306 is opened at the top of the sleeved circular plate 304. An external scraper 1 307 is fixedly connected to the outside of the linkage rod 303. A concave inclined rod 308 is fixedly connected to the end of the external scraper 1 307 away from the linkage rod 303. An external scraper 2 309 is fixedly connected to one side of the concave inclined rod 308. The top of the linkage rod 303 is fixedly connected to the drive shaft of the drive motor 2, and the bottom of the linkage rod 303 passes through the concave shell 7 and is rotatably connected to the concave shell 7 through a bearing. Multiple liquid-passing circular holes 305 are provided, and these holes are distributed on the sleeve-type circular plate 304 and aligned with the spray holes 9. Multiple atomizing circular holes 306 are provided, and these holes are distributed on the sleeve-type circular plate 304 and staggered with the liquid-passing circular holes 305. Three external scraper rods 307 are provided, positioned at the bottom of the lower concave shell 7 inside the outer inclined ring plate 301. Three external scraper rods 309 are provided, positioned at the bottom of the lower concave shell 7 outside the outer inclined ring plate 301. In use, in the event of a fire, water is introduced into one of the gas-liquid separation mechanisms 4, causing the water to gradually fill the interior of the upper concave shell 1 and the lower concave shell 7. Then, the water is sprayed out from the spray hole 9. The water flow sprayed out from the spray hole 9 comes into contact with the switching diffusion mechanism 3 and is diffused to the surrounding area through the guide. At the same time, the internal pressure drainage mechanism 6 is driven to rotate by the annular electric slide rail 5. When the internal pressure drainage mechanism 6 rotates, it applies downward pushing pressure to the liquid inside the upper concave shell 1 and the lower concave shell 7, so that the water flow is forcefully sprayed out from the spray hole 9. After the fire is suppressed, the water flow supply to one of the gas-liquid separation mechanisms 4 is stopped, and air is introduced into the other gas-liquid separation mechanism 4. The air gradually fills the interior of the upper concave shell 1 and the lower concave shell 7 and then sprays out from the spray hole 9. This makes the area near the atomizing spray fire-fighting device less smoke and more air, which is convenient for the escaped people to breathe air. When spraying water to extinguish a fire, the drive motor 2 is started to rotate the linkage rod 303. The rotation of the linkage rod 303 causes the outer sleeve circular plate 304 to rotate until the sleeve circular plate 304 rotates until the liquid passage hole 305 on its surface is aligned with the spray hole 9. At this time, the water filled in the upper concave shell 1 and the lower concave shell 7 will pass through the liquid passage hole 305 and spray out from the spray hole 9. Among the water sprayed out from the spray hole 9, the water near the inner area will spray directly downwards, while the water located outside the outer inclined ring plate 301 will spray downwards. When the water flow in the side area exits the spray nozzle 9, it will disengage from the outer inclined ring plate 301 and flow along the inclined surface of the outer inclined ring plate 301 to diffuse in all directions. By setting the outer inclined ring plate 301 at the bottom of the concave shell 7, the water flow from the spray nozzle 9 is divided into direct flow and diffused spray. The water flow flowing along the inclined surface of the outer inclined ring plate 301 will contact the diversion hole 302 and pass through the diversion hole 302 to spray downward. By opening multiple diversion holes 302 on the outside of the outer inclined ring plate 301, it is convenient to divert the diffused water flow, and the fire is contained. When it is necessary to control the dust and smoke and dust, start the drive motor 2 to rotate the linkage rod 303. The rotation of the linkage rod 303 causes the sleeve circular plate 304 to rotate until the atomizing holes 306 on the surface are aligned with the spray holes 9, at which point it stops. At this time, the water flow in the upper concave shell 1 and the lower concave shell 7 will pass through the atomizing holes 306 and the spray holes 9 in sequence. The water flow passing through the atomizing holes 306 is atomized into tiny droplets and sprayed out from the spray holes 9 to settle the dust and smoke. If the fire is not extinguished by spraying for a long time, start the drive motor. 2. The linkage rod 303 is driven to rotate. The rotation of the linkage rod 303 drives the outer scraper 1 307 to rotate. When the outer scraper 1 307 rotates with the linkage rod 303, it drives the concave inclined rod 308 and the outer scraper 2 309 to rotate together. When the outer scraper 1 307 and the outer scraper 2 309 rotate with the linkage rod 303, they scrape and clean the bottom surface of the lower concave shell 7. When the concave inclined rod 308 rotates with the linkage rod 303, it scrapes and cleans the inner and outer sides of the outer inclined ring plate 301 together.

[0014] Please see Figures 5-8 This invention provides a misting spray fire-fighting device for fire emergency passages: the gas-liquid separation mechanism 4 includes an annular connecting pipe 401, a cross ring plate 402 fixedly connected to the inner wall of the annular connecting pipe 401, a retraction spring 403 fixedly connected to the bottom of the cross ring plate 402, a circular block 404 fixedly connected to the bottom of the retraction spring 403, a top limiting rod 405 fixedly connected to the top of the circular block 404, a cross ring plate 406 fixedly connected to the top of the top limiting rod 405, the bottom of the annular connecting pipe 401 communicating with the top of the upper concave shell 1, and multiple top limiting rods 405 are provided, and the multiple top limiting rods 405 are distributed at the position where the top of the circular block 404 contacts the inner wall of the annular connecting frame; The internal pressure drainage mechanism 6 includes an annular docking plate 601. An inclined pressure plate 602 is fixedly connected to the inner side of the annular docking plate 601. A top scraper 603 is fixedly connected to the top of the inclined pressure plate 602. An inclined vertical rod 604 is fixedly connected to the outer side of the inclined pressure plate 602. A top scraper block 605 is fixedly connected to the top of the inclined vertical rod 604. An arc-shaped elastic scraper 606 is fixedly connected to one side of the top scraper block 605. The outer side of the annular docking plate 601 is rotatably connected to the inner side of the annular electric slide rail 5 via bearings. Three inclined pressure plates 602 are provided, distributed on the inner side of the annular docking plate 601. Multiple inclined vertical rods 604 are provided, symmetrically distributed on the outer side of the inclined pressure plates. When in use, to extinguish a fire by spraying water, water is introduced into one of the annular connecting pipes 401, filling the annular connecting pipe 401 and pushing the circular block 404 downward. When the circular block 404 moves into the upper concave shell 1, water flows from the annular connecting pipe 401 into the upper concave shell 1 and the lower concave shell 7. As the circular block 404 moves downward, it causes the top retraction spring 403 to extend. At the same time, the circular block 404 moves downward, causing the top limiting rod 405 to move downward as well. Multiple top limiting rods 405 are provided on the inner wall of the annular connecting pipe 401 to limit the movement of the elastically connected circular block 404. When the top limiting rod 405 moves downward, it causes the top cross ring plate 406 to move downward. The flow of water to the annular connecting pipe 401 stops when the second cross ring plate 406 moves down to contact the first cross ring plate 402. The downward movement distance of the circular blocking block 404 is limited by the second cross ring plate 406 set at the top of the top limiting rod 405. When fire sprinkler spraying is not needed, the water flow to the annular connecting pipe 401 stops. At this time, the circular blocking block 404 loses the water flow and is pulled upward by the return force of the return spring 403, moving back into the annular connecting pipe 401 at the top of the upper concave shell 1. The return force of the return spring 403 allows the circular blocking block 404 to automatically move upward and reset, blocking the annular connecting pipe 401. After the fire is suppressed, air can be supplied to the other annular connecting pipe 401, causing the air to push the circular blocking block 404 downward. The water sprays from the upper concave shell 1 and the lower concave shell 7 through the spray nozzles 9 to ventilate the fire area. Air is supplied to another annular connecting pipe 401, gradually increasing the air volume within the fire area to facilitate breathing for escaping personnel. During water spraying of the fire area, the annular connecting plate 601 rotates via the annular electric slide rail 5. The rotation of the annular connecting plate 601 drives the inner inclined pressure plate 602 to rotate, pushing the water flow at the top of the sleeve-type circular plate 304. The inclined pressure plate 602 applies downward pressure to the water flow through its inclined surface, pressurizing and spraying the water out of the spray nozzles 9. The rotation of the inclined pressure plate 602 also drives the top scraper 603 to rotate.As the annular connecting plate 601 rotates, the top scraper 603 and the inclined pressure plate 602 scrape and clean the inner walls of the upper concave shell 1 and the lower concave shell 7. The rotation of the inclined pressure plate 602 drives the top inclined vertical rod 604 to rotate, which in turn drives the top scraper block 605 to rotate. The top scraper block 605, as the annular connecting plate 601 rotates, scrapes and cleans the top surface of the inner wall of the upper concave shell 1. The rotation of the top scraper block 605 also drives the rotation of the arc-shaped elastic scraper 606 on one side. When the arc-shaped elastic scraper 606 rotates with the annular connecting plate 601 and contacts the circular block 404, it bends under the thrust, returning to a relatively flat state after passing the circular block 404. By setting an elastically deformable arc-shaped scraper 606 between the two top scraper blocks 605, the top surface of the inner wall of the upper concave shell 1 is scraped and cleaned.

[0015] In operation, when a fire occurs, water is introduced into one of the gas-liquid separation mechanisms 4, gradually filling the interior of the upper concave shell 1 and the lower concave shell 7. The water is then sprayed out from the spray hole 9. The water sprayed out from the spray hole 9 comes into contact with the switching diffusion mechanism 3 and is diffused to the surrounding area through the guide. At the same time, the internal pressure drainage mechanism 6 is driven to rotate by the annular electric slide rail 5. When the internal pressure drainage mechanism 6 rotates, it applies a downward pushing force to the liquid inside the upper concave shell 1 and the lower concave shell 7, causing the water to be forcefully sprayed out from the spray hole 9. After the fire is suppressed, the water supply to one of the gas-liquid separation mechanisms 4 is stopped, and air is introduced into the other gas-liquid separation mechanism 4, gradually filling the interior of the upper concave shell 1 and the lower concave shell 7. The air is then sprayed out from the spray hole 9, resulting in less smoke and more air in the area near the atomizing spray fire-fighting device, making it easier for escaping personnel to breathe. When spraying water to extinguish a fire, the drive motor 2 is started to rotate the linkage rod 303. The rotation of the linkage rod 303 causes the outer sleeve plate 304 to rotate until the sleeve plate 304 rotates until the liquid-passing hole 305 on its surface is aligned with the spray hole 9. At this time, the water flowing inside the upper concave shell 1 and the lower concave shell 7 will pass through the liquid-passing hole 305 and spray out from the spray hole 9. Among the water flowing out from the spray hole 9, the water near the inner area will spray directly downwards, while the water in the area outside the outer inclined ring plate 301 will disengage from the outer inclined ring plate 301 when it sprays out of the spray hole 9 and flow along the inclined surface of the outer inclined ring plate 301 to spread in all directions. The water flowing out of the spray hole 9 is controlled by the outer inclined ring plate 301 at the bottom of the lower concave shell 7. The system is divided into direct current and diffusion spray. The water flowing along the inclined surface of the outer inclined ring plate 301 will contact the diversion holes 302 and spray downwards through the diversion holes 302. By opening multiple diversion holes 302 on the outside of the outer inclined ring plate 301, it is easy to divert the diffusion water flow. When the fire is under control and it is necessary to settle the smoke and dust, the drive motor 2 is started to drive the linkage rod 303 to rotate. The rotation of the linkage rod 303 drives the sleeve circular plate 304 to rotate until the atomizing holes 306 on the surface are aligned with the spray holes 9 and then stops. At this time, the water flow in the upper concave shell 1 and the lower concave shell 7 will pass through the atomizing holes 306 and the spray holes 9 in sequence. The water flow passing through the atomizing holes 306 is atomized into tiny droplets and sprayed out from the spray holes 9 to settle the smoke and dust. When performing sprinkler fire suppression, the drive motor 2 is started to rotate the linkage rod 303. The rotation of the linkage rod 303 drives the outer scraper 307 to rotate. As the linkage rod 303 rotates, the outer scraper 307 drives the concave inclined rod 308 and the outer scraper 309 to rotate together. The outer scraper 307 and the outer scraper 309 scrape the bottom surface of the lower concave shell 7 as they rotate with the linkage rod 303. The concave inclined rod 308 scrapes the inner and outer sides of the outer inclined ring plate 301 as it rotates with the linkage rod 303. When sprinkler fire suppression is needed, water is introduced into one of the annular connecting pipes 401, so that the water fills the annular connecting pipe 401 and pushes the circular block 404 downward. When the circular block 404 moves down into the upper concave shell 1, water flows into the upper concave shell 1 and the lower concave shell 7 through the annular connecting pipe 401. As the circular block 404 moves downward, it causes the top retraction spring 403 to extend. Simultaneously, the circular block 404 moves downward, causing the top limiting rod 405 to move downward as well. Multiple top limiting rods 405 are provided on the inner wall of the annular connecting pipe 401 to limit the movement of the elastically connected circular block 404. As the top limiting rod 405 moves downward, it causes the second cross ring plate 406 at the top to move downward until it contacts the first cross ring plate 402. The downward movement distance of the circular block 404 is limited by the second cross ring plate 406 at the top of the top limiting rod 405.When fire sprinkler systems are not needed, the water supply to the annular connecting pipe 401 is stopped. At this time, the circular block 404, deprived of water flow, is pulled upward by the return force of the return spring 403 and moves back into the annular connecting pipe 401 at the top of the upper concave shell 1. The return force of the return spring 403 allows the circular block 404 to automatically move upward and reset, blocking the annular connecting pipe 401. After the fire is suppressed, air can be supplied to the other annular connecting pipe 401, causing the air to push the circular block 404 downward and into the upper concave shell 1. Between 1 and the concave shell 7, water is sprayed out from the spray hole 9 to ventilate the fire area. By supplying air into another annular connecting pipe 401, the air in the fire area gradually increases, making it easier for escapers to breathe. When spraying water into the fire area, the annular connecting plate 601 is driven to rotate by the annular electric slide rail 5. When the annular connecting plate 601 rotates, it drives the inclined pressure plate 602 on the inner side to rotate. When the inclined pressure plate 602 rotates, it pushes the water flow at the top of the sleeve circular plate 304. The inclined pressure plate 602 pushes the water flow into the fire area. When the device is pushed, its inclined surface applies downward pressure to the water flow, causing the water to be pressurized and sprayed out from the spray holes 9. When the inclined pressure plate 602 rotates, it drives the top scraper 603 to rotate. As the top scraper 603 and the inclined pressure plate 602 rotate with the annular connecting plate 601, they scrape and clean the inner walls of the upper concave shell 1 and the lower concave shell 7. When the inclined pressure plate 602 rotates, it drives the inclined vertical bar 604 to rotate. When the inclined vertical bar 604 rotates, it drives the top scraper 605 to rotate. The top scraper 605 rotates with the annular connecting plate 601. When rotating, the top surface of the inner wall of the upper concave shell 1 is scraped and cleaned. As the top scraper 605 rotates, it drives the arc-shaped elastic scraper 606 on one side to rotate. The arc-shaped elastic scraper 606 rotates with the annular connecting plate 601 until it contacts the circular block 404, at which point it bends in an arc shape under the thrust. It then springs back to a relatively flat state after passing the circular block 404. By setting an elastically deformable arc-shaped scraper 606 between the two top scrapers 605, the top surface of the inner wall of the upper concave shell 1 is scraped and cleaned.

[0016] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A misting sprinkler fire extinguishing device for fire emergency passages, comprising an upper concave shell (1), characterized in that: A drive motor (2) is fixedly connected to the top of the upper concave shell (1). The drive shaft of the drive motor (2) passes through the upper concave shell (1) and is fixedly connected to a switching diffusion mechanism (3). A gas-liquid separation mechanism (4) is connected to the top of the upper concave shell (1). An annular electric slide rail (5) is fixedly connected to the outside of the upper concave shell (1). An internal pressure drainage mechanism (6) is rotatably connected to the inside of the annular electric slide rail (5) through a bearing. A lower concave shell (7) is fixedly connected to the inside of the annular electric slide rail (5). A concave fixing rod (8) is fixedly connected to the outside of the lower concave shell (7). A spray hole (9) is opened at the bottom of the lower concave shell (7). The switching diffusion mechanism (3) includes an outer inclined ring plate (301), and a diversion hole (302) is provided on the outer side of the outer inclined ring plate (301).

2. The atomizing sprinkler fire-fighting device for fire emergency passages according to claim 1, characterized in that: The bottom of the switching diffusion mechanism (3) passes through the lower concave shell (7) and is rotatably connected to the lower concave shell (7) through a bearing. There are two gas-liquid separation mechanisms (4), and the two gas-liquid separation mechanisms (4) are distributed on the upper concave shell (1). The end of the concave fixing rod (8) away from the lower concave shell (7) is fixedly connected to the outside of the upper concave shell (1). There are multiple spray holes (9), and the multiple spray holes (9) are distributed at the bottom of the lower concave shell (7).

3. A misting sprinkler fire-fighting device for fire emergency passages according to claim 1, characterized in that: The top of the outer inclined ring plate (301) is fixedly connected to the bottom of the concave shell (7), and multiple diversion holes (302) are provided, and the multiple diversion holes (302) are distributed on the outside of the outer inclined ring plate (301).

4. A misting sprinkler fire-fighting device for fire emergency passages according to claim 1, characterized in that: The switching diffusion mechanism (3) further includes a linkage rod (303), a sleeved circular plate (304) is sleeved and fixedly connected to the outside of the linkage rod (303), a liquid passage circular hole (305) is opened at the top of the sleeved circular plate (304), an atomizing circular hole (306) is opened at the top of the sleeved circular plate (304), an external scraper rod (307) is fixedly connected to the outside of the linkage rod (303), a concave inclined rod (308) is fixedly connected to the end of the external scraper rod (307) away from the linkage rod (303), and an external scraper rod (309) is fixedly connected to one side of the concave inclined rod (308).

5. A misting sprinkler fire-fighting device for fire emergency passages according to claim 4, characterized in that: The top of the linkage rod (303) is fixedly connected to the drive shaft of the drive motor (2), and the bottom of the linkage rod (303) passes through the concave shell (7) and is rotatably connected to the concave shell (7) through a bearing.

6. A misting sprinkler fire-fighting device for fire emergency passages according to claim 4, characterized in that: Multiple liquid-passing circular holes (305) are provided, and the multiple liquid-passing circular holes (305) are distributed on the sleeve circular plate (304) and aligned with the spray circular holes (9). Multiple atomizing circular holes (306) are provided, and the multiple atomizing circular holes (306) are distributed on the sleeve circular plate (304) and staggered with the liquid-passing circular holes (305). Three external scraper rods (307) are provided, and the three external scraper rods (307) are distributed at the bottom of the concave shell (7) located inside the outer inclined ring plate (301). Three external scraper rods (309) are provided, and the three external scraper rods (309) are distributed at the bottom of the concave shell (7) located outside the outer inclined ring plate (301).

7. A misting sprinkler fire extinguishing device for fire emergency passages according to claim 1, characterized in that: The gas-liquid separation mechanism (4) includes an annular connecting pipe (401), the inner wall of which is fixedly connected to a cross ring plate (402), the bottom of which is fixedly connected to a retraction spring (403), the bottom of which is fixedly connected to a circular block (404), the top of which is fixedly connected to a top limiting rod (405), and the top of which is fixedly connected to a cross ring plate (406).

8. A misting sprinkler fire-fighting device for fire emergency passages according to claim 7, characterized in that: The bottom of the annular connecting pipe (401) is connected to the top of the upper concave shell (1). Multiple top limiting rods (405) are provided, and the multiple top limiting rods (405) are distributed at the position where the top of the circular block (404) contacts the inner wall of the annular connecting frame.

9. A misting sprinkler fire-fighting device for fire emergency passages according to claim 1, characterized in that: The internal pressure drainage mechanism (6) includes an annular docking plate (601), an inclined pressure plate (602) is fixedly connected to the inner side of the annular docking plate (601), a top scraper (603) is fixedly connected to the top of the inclined pressure plate (602), an inclined vertical rod (604) is fixedly connected to the outer side of the inclined pressure plate (602), a top scraper block (605) is fixedly connected to the top of the inclined vertical rod (604), and an arc-shaped elastic scraper (606) is fixedly connected to one side of the top scraper block (605).

10. A misting sprinkler fire-fighting device for fire emergency passages according to claim 9, characterized in that: The outer side of the annular docking plate (601) is rotatably connected to the inner side of the annular electric slide rail (5) via bearings. There are three inclined pressure plates (602), and the three inclined pressure plates (602) are distributed on the inner side of the annular docking plate (601). There are multiple inclined vertical rods (604), and the multiple inclined vertical rods (604) are symmetrically distributed on the outer side of the inclined pressure plates.

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