Axial flow fan for high-temperature fire-fighting smoke exhaust and ventilation

Abstract

The invention relates to the technical field of fire-fighting equipment, in particular to an axial flow fan for high-temperature fire-fighting smoke exhaust and ventilation, which comprises a smoke exhaust shell and a smoke exhaust assembly, the smoke exhaust assembly comprises a driving unit, a plurality of blades, a filter screen, a filter shell, a first sliding groove, a second sliding groove, a first screw machine, a first sliding block, a rotating rod, a gear, a rack, a plurality of scraping blocks, a rotating plate, an opening and closing unit, a protective shell, a movable adjusting unit, a U-shaped block, two cleaning brushes and a garbage collecting box, and the first screw machine is started to drive the first sliding block to slide in the first sliding groove; according to the device, the rotating rod is driven to move downwards, so that the gear is matched with the rack, and the rack drives the rotating rod to rotate in the downward moving process, so that a plurality of scraping blocks are driven to continuously scrape garbage from the filter screen, garbage in smoke can be filtered, continuously scraped and cleaned, continuous filtering is carried out, and garbage accumulation and blockage are avoided; and the safety and efficiency of smoke exhaust are improved.

Description

Technical Field

[0001] The invention relates to the technical field of fire fighting equipment, and in particular to an axial flow fan used for high-temperature fire fighting smoke exhaust ventilation. Background Art

[0002] In a fire, axial flow fans are usually installed to exhaust indoor smoke. Since the smoke temperature of a fire is relatively high, the high-temperature smoke needs to be cooled after entering the axial flow fan to avoid damage to the internal motor. At the same time, the blades of the axial flow fan are directly welded. Once one of the blades is damaged, the entire hub and other blades cannot be used anymore. The entire hub and blades must be replaced, further increasing the cost of use, replacement and maintenance.

[0003] In the prior art, the motor is mounted on a support, and then the support together with the motor is placed in a cylindrical shell, so that the support is connected and fixed to the cylindrical shell, ensuring that the center of the motor shaft coincides with the center line of the cylindrical shell, and then the shaft sleeve is mounted on the motor shaft, and finally each fan blade is mounted on the shaft sleeve on the end face by bolts, ensuring that each fan blade is stacked on the adjacent fan blade on one side, and the stacked fan blade is stacked by the adjacent fan blade on the other side. Compared with the traditional structure, the axial flow fan saves the hub, reducing the overall production cost of the axial flow fan; each fan blade is mounted on the end face of the shaft sleeve by bolts, forming a detachable connection structure, which is easy to disassemble and improve the convenience of fan blade replacement and maintenance, thereby reducing the cost of use, replacement and maintenance.

[0004] However, in the aforementioned prior art, relatively thin materials such as plastic bags may be present in a fire and will be sucked into the axial flow fan along with the smoke. Therefore, it is impossible to continuously filter the thin garbage in the smoke, which may easily cause internal blockage. The garbage may be entangled on the blades, affecting the safety and efficiency of smoke exhaust. Summary of the invention

[0005] The purpose of the present invention is to provide an axial flow fan for high-temperature fire smoke exhaust ventilation, which solves the problem in the prior art that relatively thin materials such as plastic bags may be present in a fire and will be sucked into the axial flow fan along with the smoke, making it impossible to continuously filter the thin garbage in the smoke, easily causing internal blockage, and the garbage will be entangled on the blades, affecting the safety and efficiency of smoke exhaust.

[0006] To achieve the above-mentioned object, the present invention provides an axial flow fan for high-temperature fire smoke exhaust ventilation, comprising a smoke exhaust housing and a smoke exhaust component; The smoke exhaust assembly includes a driving unit, a plurality of blades, a filter, a filter housing, a first slide groove, a second slide groove, a first screw machine, a first slider, a rotating rod, a gear, a rack, a plurality of scraping blocks, a rotating plate, an opening and closing unit, a protective housing, a movable adjustment unit, a U-shaped block, two cleaning brushes and a garbage collection box. The driving unit is arranged on the smoke exhaust housing, and a plurality of blades are arranged on the driving unit and are located inside the smoke exhaust housing. The filter is fixedly connected to the smoke exhaust housing and is located at one end of the smoke exhaust housing. The filter housing is fixedly connected to the smoke exhaust housing and is sleeved on one end of the smoke exhaust housing close to the filter. The first slide groove and the second slide groove are fixedly connected to the filter housing and are symmetrically distributed inside the filter housing. The first screw machine is arranged inside the first slide groove. The first slider is slidably connected to the first slide groove. The first slider is arranged at the output end of the first screw machine. One end of the rotating rod is rotatably connected to the first sliding block, and the other end of the rotating rod is fixedly connected to the gear, the rack is fixedly connected to the second sliding groove and is located inside the second sliding groove, the gear and the rack are meshed with each other, a plurality of scraping blocks are fixedly connected to the rotating rod and are sequentially distributed around the outer wall of the rotating rod, a plurality of scraping blocks are located on one side of the filter screen, the filter housing has a slot, the rotating plate is rotatably connected to the filter housing and is adapted to the slot, the opening and closing unit is arranged on the rotating plate, the protective housing is fixedly connected to the smoke exhaust housing and is located below the smoke exhaust housing, the movable adjustment unit is arranged below the smoke exhaust housing and is located inside the protective housing, the U-shaped block is arranged on the movable adjustment unit, the two cleaning brushes are symmetrically arranged inside the U-shaped block, and the garbage collection box is placed on the inner bottom wall of the protective housing and is located below the U-shaped block.

[0007] Wherein, the driving unit includes a driving motor, a first rotating shaft, a first bevel gear, a second rotating shaft, a second bevel gear, a support block, a first support rod and a ring body, the driving motor is fixedly connected to the smoke exhaust housing and is located below the smoke exhaust housing, one end of the first rotating shaft is fixedly connected to the driving motor, the other end of the first rotating shaft passes through the smoke exhaust housing and is fixedly connected to the first bevel gear, the first bevel gear and the second bevel gear are meshed with each other, the two ends of the second rotating shaft are fixedly connected to the support block and the second bevel gear respectively, the multiple blades are fixedly connected to the support block and are distributed around the support block, the ring body is sleeved on the outer wall of the second rotating shaft, the second rotating shaft is rotatably connected to the ring body, and the two ends of the first support rod are fixedly connected to the inner wall of the smoke exhaust housing and the ring body.

[0008] Wherein, the opening and closing unit includes a first fixed plate, a second fixed plate and a first cylinder, the first fixed plate is fixedly connected to the rotating plate and is located below the rotating plate, the second fixed plate is fixedly connected to the filter housing and is located below the filter housing, the first cylinder is rotatably connected to the second fixed plate, and the output end of the first cylinder is rotatably connected to the first fixed plate.

[0009] Wherein, the movable adjustment unit includes a third slide groove, a second slider, a second screw machine, a fourth slide groove, a third slider, a third screw machine and a second cylinder, the third slide groove is fixedly connected to the smoke exhaust shell and is located below the smoke exhaust shell, the second slider is slidably connected to the third slide groove, the second screw machine is arranged on the third slide groove, the second slider is arranged at the output end of the second screw machine, the fourth slide groove is arranged on the second slider, the third slider is slidably connected to the fourth slide groove, the third screw machine is arranged on the fourth slide groove, the third slider is arranged at the output end of the third screw machine, the second cylinder is fixedly connected to the third slider, and the output end of the second cylinder is fixedly connected to the U-shaped block.

[0010] Among them, the axial flow fan used for high-temperature fire smoke exhaust ventilation also includes a cooling component, and the cooling component is arranged inside the smoke exhaust shell.

[0011] Among them, the cooling component includes a cooling channel, two conical shells, a water pump, a water pipe and a nozzle. The cooling channel is located inside the smoke exhaust shell. The two conical shells are fixedly connected to the smoke exhaust shell. The two conical shells are communicated with the cooling channel and are symmetrically distributed at both ends of the cooling channel. The water pump is fixedly connected to the smoke exhaust shell and is located above the smoke exhaust shell. One end of the water pipe is communicated with the water outlet end of the water pump, and the other end of the water pipe passes through the smoke exhaust shell and the cooling channel in sequence, and is communicated with the nozzle. The cooling channel has a water storage tank.

[0012] Among them, the cooling component also includes a drain pipe and a sewage collection box, one end of the drain pipe passes through the smoke exhaust shell and is connected to the cooling channel, the sewage collection box is placed on one side of the protective shell, and the other end of the drain pipe is located above the sewage collection box.

[0013] The axial flow fan used for high-temperature fire smoke exhaust ventilation of the present invention relies on the rotation of the blades to suck the high-temperature smoke into the filter housing, and passes through the filter to filter garbage. The first screw machine drives the first slider to slide, and the rotating rod moves downward. At the same time, the gear and the rack cooperate to make the rotating rod rotate in the process of moving downward, thereby driving the plurality of scraping blocks to continuously scrape the garbage from the filter to complete the cleaning of the filter, effectively improving the efficiency and quality of garbage scraping. When the garbage is wrapped around the scraping block, the opening and closing unit opens the rotating plate, and the rotating rod continues to move downward. After being located inside the protective housing, the cleaning brush continuously contacts the plurality of scraping blocks to brush off the attached garbage, and then the rotating rod moves upward to continue scraping the garbage from the filter. Through the above-mentioned structural setting, the garbage in the smoke can be continuously filtered and scraped and cleaned to avoid garbage accumulation and blockage. There is no need to replace the filter, and there is no need to manually clean the filter, thereby improving the safety and efficiency of smoke exhaust. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0015] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention.

[0016] Figure 2 It is an overall cross-sectional view of the first embodiment of the present invention.

[0017] Figure 3 The present invention Figure 2 AA line section view.

[0018] Figure 4 is a cross-sectional view of the movement and adjustment unit of the present invention.

[0019] Figure 5 The present invention Figure 3 Enlarged view of the local structure at point B.

[0020] Figure 6 It is an overall cross-sectional view of a second embodiment of the present invention.

[0021] Figure 7 It is a cross-sectional view of the cooling component of the present invention.

[0022] Figure 8 It is a structural schematic diagram of a sewage collection box of the present invention.

[0023] Fig. 9 It is an overall cross-sectional view of a third embodiment of the present invention.

[0024] 101-smoke exhaust housing, 102-blades, 103-filter screen, 104-filter housing, 105-first slide, 106-second slide, 107-first screw machine, 108-first slider, 109-rotating rod, 110-gear, 111-rack, 112-scraping block, 113-rotating plate, 114-protective housing, 115-U-shaped block, 116-cleaning brush, 117-garbage collection box, 118-grooving, 119-driving motor, 120-first rotating shaft, 121-first bevel gear, 122-second rotating shaft, 123-second bevel gear, 124-support block, 125-first support rod, 126- Ring body, 127-first fixed plate, 128-second fixed plate, 129-first cylinder, 130-third slide, 131-second slider, 132-second screw machine, 133-fourth slide, 134-third slider, 135-third screw machine, 136-second cylinder, 201-cooling channel, 202-conical shell, 203-water pump, 204-water pipe, 205-nozzle, 206-water storage tank, 207-drain pipe, 208-sewage collection box, 301-high-pressure air pump, 302-high-pressure jet gun, 303-second support rod, 304-scraper, 305-third support rod, 306-flow guide cover. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0026] First embodiment: See also Figures 1 to 5 The present invention provides an axial flow fan for high-temperature fire smoke exhaust ventilation, including a smoke exhaust housing 101 and a smoke exhaust component, wherein the smoke exhaust component includes a driving unit, a plurality of blades 102, a filter screen 103, a filter housing 104, a first slide 105, a second slide 106, a first screw machine 107, a first slider 108, a rotating rod 109, a gear 110, a rack 111, a plurality of scraping blocks 112, a rotating plate 113, an opening and closing unit, a protective housing 114, a moving adjustment unit, a U-shaped block 115, two cleaning brushes 116 and a garbage collection box 117, the The filter housing 104 has a slot 118, the driving unit includes a driving motor 119, a first rotating shaft 120, a first bevel gear 121, a second rotating shaft 122, a second bevel gear 123, a support block 124, a first support rod 125 and a ring body 126, the opening and closing unit includes a first fixed plate 127, a second fixed plate 128 and a first cylinder 129, and the moving and adjusting unit includes a third slide groove 130, a second slider 131, a second screw machine 132, a fourth slide groove 133, a third slider 134, a third screw machine 135 and a second cylinder 136.

[0027] According to this specific embodiment, the axial flow fan is placed at the fire smoke exhaust, the driving unit is started, the blades 102 are driven to rotate, and the high-temperature smoke is sucked into the filter housing 104 and discharged from the smoke exhaust housing 101. When the smoke passes through the filter housing 104, the filter 103 filters the light and thin garbage in the smoke. Then, when a certain amount of garbage is accumulated on the filter 103, the first screw machine 107 is started to drive the first slider 108 to slide in the first slide groove 105, and drive the rotating rod 109 to move downward, so that the gear 110 cooperates with the rack 111, and the rotating rod 109 is driven by the rack 111 to rotate during the downward movement, thereby driving the multiple scraping blocks 112 to continuously scrape the garbage from the filter 103.

[0028] Wherein, the driving unit is arranged on the smoke exhaust housing 101, and the plurality of blades 102 are all arranged on the driving unit and are located inside the smoke exhaust housing 101. The filter 103 is fixedly connected to the smoke exhaust housing 101 and is located at one end of the smoke exhaust housing 101. The filter housing 104 is fixedly connected to the smoke exhaust housing 101 and is sleeved on one end of the smoke exhaust housing 101 close to the filter 103. The first slide groove 105 and the second slide groove 106 are both fixedly connected to the filter housing 104 and symmetrically distributed inside the filter housing 104. The first screw machine 107 is arranged inside the first slide groove 105. The first slider 108 is slidably connected to the first slide groove 105. The first slider 108 is arranged at the output end of the first screw machine 107. One end of the rotating rod 109 is rotatably connected to the first slider 108, and the other end of the rotating rod 109 is fixedly connected to the gear 110. The rack 111 is fixedly connected to the second slide groove 106. The rotating plate 113 is fixedly connected to the filter housing 104 and is located inside the second chute 106. The gear 110 is meshed with the rack 111. The plurality of scraper blocks 112 are fixedly connected to the rotating rod 109 and are sequentially distributed around the outer wall of the rotating rod 109. The plurality of scraper blocks 112 are located on one side of the filter screen 103. The filter housing 104 has a slot 118. The rotating plate 113 is rotatably connected to the filter housing 104 and is adapted to the slot 118. The opening and closing unit is arranged on the rotating plate 1 13, the protective shell 114 is fixedly connected to the smoke exhaust shell 101 and is located below the smoke exhaust shell 101, the movable adjustment unit is arranged below the smoke exhaust shell 101 and is located inside the protective shell 114, the U-shaped block 115 is arranged on the movable adjustment unit, the two cleaning brushes 116 are symmetrically arranged inside the U-shaped block 115, and the garbage collection box 117 is placed on the inner bottom wall of the protective shell 114 and is located below the U-shaped block 115.By placing the axial flow fan at the fire smoke exhaust, starting the driving unit, driving the blade 102 to rotate, sucking the high-temperature smoke into the filter housing 104, and exhausting it from the smoke exhaust housing 101, when the smoke passes through the filter housing 104, the filter 103 filters the light and thin garbage in the smoke, and then when a certain amount of garbage is accumulated on the filter 103, the first screw machine 107 is started to drive the first slider 108 to slide in the first slide groove 105, and drive the rotating rod 109 to move downward, so that the gear 110 cooperates with the rack 111, and the rack 111 drives the rotating rod 109 to move downward. The rotating rod 109 rotates during the movement, thereby driving the multiple scraping blocks 112 to continuously scrape the garbage from the filter 103. After the garbage is entangled on the scraping blocks 112, the opening and closing unit opens the rotating plate 113, and the rotating rod 109 continues to move downward to one side of the U-shaped block 115. At this time, the moving adjustment unit moves the U-shaped block 115 to wrap the rotating rod 109, and the cleaning brush 116 continuously contacts the multiple scraping blocks 112 to brush off the attached garbage and drop it into the garbage collection box 117. Then the rotating rod 109 moves upward to continue scraping the garbage from the filter 103.

[0029] Secondly, the driving motor 119 is fixedly connected to the smoke exhaust housing 101 and is located below the smoke exhaust housing 101. One end of the first rotating shaft 120 is fixedly connected to the driving motor 119. The other end of the first rotating shaft 120 passes through the smoke exhaust housing 101 and is fixedly connected to the first bevel gear 121. The first bevel gear 121 and the second bevel gear 123 are meshed with each other. The two ends of the second rotating shaft 122 are fixedly connected to the support block 124 and the second bevel gear 123 respectively. The multiple blades 102 are fixedly connected to the support block 124 and are distributed around the support block 124. The ring body 126 is sleeved on the outer wall of the second rotating shaft 122. The second rotating shaft 122 is rotatably connected to the ring body 126. The two ends of the first support rod 125 are fixedly connected to the inner wall of the smoke exhaust housing 101 and the ring body 126. The driving motor 119 is started, driving the first rotating shaft 120 and the first bevel gear 121 to rotate, and through engagement with the second bevel gear 123, driving the second rotating shaft 122 to rotate, causing the supporting block 124 to rotate, driving the plurality of blades 102 to rotate, and drawing indoor smoke into the room. At the same time, the second supporting rod 303 supports the ring body 126, and then relies on the ring body 126 to support the second rotating shaft 122, thereby improving operational stability.

[0030] At the same time, the first fixing plate 127 is fixedly connected to the rotating plate 113 and is located below the rotating plate 113, the second fixing plate 128 is fixedly connected to the filter housing 104 and is located below the filter housing 104, the first cylinder 129 is rotatably connected to the second fixing plate 128, and the output end of the first cylinder 129 is rotatably connected to the first fixing plate 127. The first fixing plate 127 and the second fixing plate 128 support the first cylinder 129, and the first cylinder 129 can be started to rotate and open the rotating plate 113.

[0031] In addition, the third slide groove 130 is fixedly connected to the smoke exhaust shell 101 and is located below the smoke exhaust shell 101, the second slider 131 is slidably connected to the third slide groove 130, the second screw machine 132 is arranged on the third slide groove 130, the second slider 131 is arranged at the output end of the second screw machine 132, the fourth slide groove 133 is arranged on the second slider 131, the third slider 134 is slidably connected to the fourth slide groove 133, the third screw machine 135 is arranged on the fourth slide groove 133, the third slider 134 is arranged at the output end of the third screw machine 135, the second cylinder 136 is fixedly connected to the third slider 134, and the output end of the second cylinder 136 is fixedly connected to the U-shaped block 115. The third screw machine 135 is started, driving the third slider 134 to slide in the fourth slide groove 133, and the upper and lower positions of the U-shaped block 115 can be adjusted. The second cylinder 136 is started, driving the U-shaped block 115 to move forward and wrap around the outside of the rotating rod 109. At this time, the cleaning brush 116 contacts the rotating rod 109 and the scraping block 112. Then the second screw machine 132 is started, driving the second slider 131 to slide in the third slide groove 130, driving the fourth slide groove 133 and the U-shaped block 115 to move horizontally, and scraping the garbage attached to the entire rotating rod 109.

[0032] When using the axial flow fan for high-temperature fire smoke exhaust ventilation of the present embodiment, the axial flow fan is placed at the fire smoke exhaust, the driving unit is started, the blades 102 are driven to rotate, and the high-temperature smoke is sucked into the filter housing 104 and discharged from the smoke exhaust housing 101. When the smoke passes through the filter housing 104, the filter 103 filters the light and thin garbage in the smoke. Then, when a certain amount of garbage is accumulated on the filter 103, the first screw machine 107 is started to drive the first slider 108 to slide in the first slide groove 105, and drive the rotating rod 109 to move downward, so that the gear 110 cooperates with the rack 111, and the rotating rod 109 is driven by the rack 111 to rotate during the downward movement, thereby driving the plurality of scraping blocks 112 to continuously The filter 103 is scraped to remove garbage. After the garbage is entangled on the scraper block 112, the opening and closing unit opens the rotating plate 113, and the rotating rod 109 continues to move downward to one side of the U-shaped block 115. At this time, the moving adjustment unit moves the U-shaped block 115 to wrap the rotating rod 109, and the cleaning brush 116 is continuously in contact with the multiple scraper blocks 112 to brush off the attached garbage and drop it into the garbage collection box 117. Then the rotating rod 109 moves up to continue scraping the garbage from the filter 103. Through the above-mentioned structural setting, the garbage in the smoke is continuously filtered and scraped and cleaned to avoid garbage accumulation and blockage. There is no need to replace the filter 103 or manually clean the filter 103, thereby improving the safety and efficiency of smoke exhaust.

[0033] Second embodiment: Based on the first embodiment, please refer to Figures 6 to 8 The present invention provides an axial flow fan for high-temperature fire smoke exhaust ventilation, which also includes a cooling component, the cooling component includes a cooling channel 201, two conical shells 202, a water pump 203, a water pipe 204, a nozzle 205, a drain pipe 207 and a sewage collection box 208, and the cooling channel 201 has a water storage tank 206.

[0034] According to this specific implementation, the water pump 203 is started, and the water inlet end of the water pump 203 is connected to the external water source, and then reaches the nozzle 205 through the water pipe 204 to spray water. After the high-temperature flue gas passes through, the atomized water absorbs heat, and then the water falls into the water storage tank 206. The water passes through the drain pipe 207 to the sewage collection tank 208 for storage for centralized treatment.

[0035] The cooling component is disposed inside the smoke exhaust housing 101. The cooling component can cool the smoke entering the smoke exhaust housing 101 to prevent excessive temperature from affecting safety after exhaustion.

[0036] Secondly, the cooling channel 201 is located inside the smoke exhaust shell 101, the two conical shells 202 are fixedly connected to the smoke exhaust shell 101, the two conical shells 202 are communicated with the cooling channel 201, and are symmetrically distributed at both ends of the cooling channel 201, the water pump 203 is fixedly connected to the smoke exhaust shell 101 and is located above the smoke exhaust shell 101, one end of the water pipe 204 is communicated with the water outlet end of the water pump 203, the other end of the water pipe 204 passes through the smoke exhaust shell 101 and the cooling channel 201 in sequence, and is communicated with the nozzle 205, and the cooling channel 201 has a water storage tank 206. The water pump 203 is started, and the water inlet end of the water pump 203 is connected to the external water source, and then reaches the nozzle 205 through the water pipe 204 to spray water. The high-temperature flue gas passes through the atomized water to absorb heat, and then the water falls into the water storage tank 206. Relying on the function of the water storage tank 206, sewage can be prevented from flowing out of the cooling channel 201. In addition, cooling by water spray can also play a certain role in purifying the flue gas and reducing air pollution.

[0037] At the same time, one end of the drain pipe 207 passes through the smoke exhaust housing 101 and is connected to the cooling channel 201. The sewage collection tank 208 is placed on one side of the protection housing 114, and the other end of the drain pipe 207 is located above the sewage collection tank 208. Water passes through the drain pipe 207 and reaches the sewage collection tank 208 for storage so as to be centrally processed.

[0038] When using the axial flow fan for high-temperature fire smoke exhaust ventilation of this embodiment, the water pump 203 is started, and the water inlet end of the water pump 203 is connected to the external water source, and then reaches the nozzle 205 through the water pipe 204 to spray water. The high-temperature smoke passes through the atomized water to absorb heat, and then the water falls into the water storage tank 206. The water passes through the drain pipe 207 to the sewage collection tank 208 for storage for centralized treatment, thereby cooling the smoke entering the smoke exhaust shell 101 to avoid excessive temperature affecting safety after exhaust.

[0039] Third embodiment: The axial flow fan used for the high-temperature fire smoke exhaust ventilation also includes a cleaning reinforcement component, which is arranged on the smoke exhaust component. The cleaning reinforcement component includes a high-pressure air pump 301, a high-pressure jet gun 302, a second support rod 303 and a scraper 304. The high-pressure air pump 301 is fixedly connected to the U-shaped block 115 and is located above the U-shaped block 115. The high-pressure jet gun 302 is connected to the air outlet end of the high-pressure air pump 301. One end of the second support rod 303 is fixedly connected to the U-shaped block 115 and is located below the U-shaped block 115. The other end of the second support rod 303 is fixedly connected to the scraper 304. The cleaning enhancement assembly also includes a third support rod 305 and a guide cover 306. The two ends of the third support rod 305 are fixedly connected to the inner wall of the smoke exhaust shell 101 and the guide cover 306 respectively. The guide cover 306 is sleeved on the outside of the first bevel gear 121 and the second bevel gear 123. The first rotating shaft 120 is rotatably connected to the guide cover 306.

[0040] Based on the second embodiment, please refer to Fig. 9 The present invention provides an axial flow fan for high-temperature fire smoke exhaust ventilation, which also includes a cleaning enhancement component, and the cleaning enhancement component includes a high-pressure air pump 301, a high-pressure jet gun 302, a second support rod 303, a scraper 304, a third support rod 305 and a guide cover 306.

[0041] According to this specific embodiment, after the U-shaped block 115 moves and scrapes at the rotating rod 109, the second cylinder 136 is started, driving the high-pressure jet gun 302 to aim at the scraping block 112, and the high-pressure air pump 301 is started, thereby removing stubborn garbage through high-pressure gas. At the same time, the U-shaped block 115 can also be moved upward, and the second support rod 303 supports the scraper 304. The scraper 304 is moved between the two scraping blocks 112 to scrape in sequence, which can effectively scrape off the stubbornly attached garbage.

[0042] The cleaning enhancement component is arranged on the smoke exhaust component and can enhance the scraping of garbage by the scraping block 112 and the rotating rod 109, thereby improving the effect of garbage cleaning.

[0043] Secondly, the high-pressure air pump 301 is fixedly connected to the U-shaped block 115 and is located above the U-shaped block 115. The high-pressure air gun 302 is connected to the air outlet of the high-pressure air pump 301. One end of the second support rod 303 is fixedly connected to the U-shaped block 115 and is located below the U-shaped block 115. The other end of the second support rod 303 is fixedly connected to the scraper 304. After the U-shaped block 115 moves and scrapes at the rotating rod 109, the second cylinder 136 is started, driving the high-pressure air gun 302 to aim at the scraping block 112, and the high-pressure air pump 301 is started, and then the stubborn garbage is removed by high-pressure gas. At the same time, the U-shaped block 115 can also be moved up. The second support rod 303 supports the scraper 304. The scraper 304 moves between the two scraping blocks 112 and scrapes in sequence, which can effectively scrape off the stubborn garbage.

[0044] At the same time, the two ends of the third support rod 305 are respectively fixedly connected to the inner wall of the smoke exhaust housing 101 and the air deflector 306, the air deflector 306 is sleeved on the outside of the first bevel gear 121 and the second bevel gear 123, and the first rotating shaft 120 is rotatably connected to the air deflector 306. The third support rod 305 supports the air deflector 306, and the air deflector 306 is used to protect the first bevel gear 121 and the second bevel gear 123, so that the smoke will not directly contact the bevel gear 110, which can reduce the wear and damage to the bevel gear 110. At the same time, compared with the direct contact between the smoke and the bevel gear 110, the air deflector 306 can reduce the wind resistance and increase the flow speed of the smoke.

[0045] When using an axial flow fan for high-temperature fire smoke exhaust ventilation of the present embodiment, after the U-shaped block 115 moves and scrapes at the rotating rod 109, the second cylinder 136 is started, driving the high-pressure jet gun 302 to aim at the scraping block 112, and the high-pressure air pump 301 is started, and then the stubborn garbage is removed by high-pressure gas, and the U-shaped block 115 can also be moved up at the same time. The second support rod 303 supports the scraper 304, and the scraper 304 moves between the two scraping blocks 112 to scrape in sequence, which can effectively scrape off the stubbornly attached garbage. The third support rod 305 supports the deflector 306, and the deflector 306 is used to protect the first bevel gear 121 and the second bevel gear 123, so that the smoke will not directly contact the bevel gear 110, which can reduce the wear and damage to the bevel gear 110. At the same time, compared with the direct contact between the smoke and the bevel gear 110, the deflector 306 can reduce wind resistance and increase the flow speed of the smoke.

[0046] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An axial flow fan for high temperature fire smoke exhaust ventilation, comprising a smoke exhaust housing, characterized in that: Also included is a smoke exhaust assembly; The smoke exhaust assembly includes a driving unit, a plurality of blades, a filter, a filter housing, a first slide groove, a second slide groove, a first screw machine, a first slider, a rotating rod, a gear, a rack, a plurality of scraping blocks, a rotating plate, an opening and closing unit, a protective housing, a movable adjustment unit, a U-shaped block, two cleaning brushes and a garbage collection box. The driving unit is arranged on the smoke exhaust housing, and a plurality of blades are arranged on the driving unit and are located inside the smoke exhaust housing. The filter is fixedly connected to the smoke exhaust housing and is located at one end of the smoke exhaust housing. The filter housing is fixedly connected to the smoke exhaust housing and is sleeved on one end of the smoke exhaust housing close to the filter. The first slide groove and the second slide groove are fixedly connected to the filter housing and are symmetrically distributed inside the filter housing. The first screw machine is arranged inside the first slide groove. The first slider is slidably connected to the first slide groove. The first slider is arranged at the output end of the first screw machine. One end of the rotating rod is rotatably connected to the first sliding block, and the other end of the rotating rod is fixedly connected to the gear, the rack is fixedly connected to the second sliding groove and is located inside the second sliding groove, the gear and the rack are meshed with each other, a plurality of scraping blocks are fixedly connected to the rotating rod and are sequentially distributed around the outer wall of the rotating rod, a plurality of scraping blocks are located on one side of the filter screen, the filter housing has a slot, the rotating plate is rotatably connected to the filter housing and is adapted to the slot, the opening and closing unit is arranged on the rotating plate, the protective housing is fixedly connected to the smoke exhaust housing and is located below the smoke exhaust housing, the movable adjustment unit is arranged below the smoke exhaust housing and is located inside the protective housing, the U-shaped block is arranged on the movable adjustment unit, the two cleaning brushes are symmetrically arranged inside the U-shaped block, and the garbage collection box is placed on the inner bottom wall of the protective housing and is located below the U-shaped block.

2. The axial flow fan for high temperature fire smoke exhaust ventilation as claimed in claim 1, characterized in that: The driving unit includes a driving motor, a first rotating shaft, a first bevel gear, a second rotating shaft, a second bevel gear, a supporting block, a first supporting rod and a ring body. The driving motor is fixedly connected to the smoke exhaust housing and is located below the smoke exhaust housing. One end of the first rotating shaft is fixedly connected to the driving motor, and the other end of the first rotating shaft passes through the smoke exhaust housing and is fixedly connected to the first bevel gear. The first bevel gear and the second bevel gear are meshed with each other. The two ends of the second rotating shaft are fixedly connected to the supporting block and the second bevel gear respectively. The plurality of blades are fixedly connected to the supporting block and are distributed around the supporting block. The ring body is sleeved on the outer wall of the second rotating shaft, and the second rotating shaft is rotatably connected to the ring body. The two ends of the first supporting rod are fixedly connected to the inner wall of the smoke exhaust housing and the ring body.

3. The axial flow fan for high temperature fire smoke exhaust ventilation as claimed in claim 2, characterized in that: The opening and closing unit includes a first fixed plate, a second fixed plate and a first cylinder, the first fixed plate is fixedly connected to the rotating plate and is located below the rotating plate, the second fixed plate is fixedly connected to the filter housing and is located below the filter housing, the first cylinder is rotatably connected to the second fixed plate, and the output end of the first cylinder is rotatably connected to the first fixed plate.

4. The axial flow fan for high temperature fire smoke exhaust ventilation as claimed in claim 3, characterized in that: The movable adjustment unit includes a third slide groove, a second slider, a second screw machine, a fourth slide groove, a third slider, a third screw machine and a second cylinder. The third slide groove is fixedly connected to the smoke exhaust housing and is located below the smoke exhaust housing. The second slider is slidably connected to the third slide groove. The second screw machine is arranged on the third slide groove. The second slider is arranged at the output end of the second screw machine. The fourth slide groove is arranged on the second slider. The third slider is slidably connected to the fourth slide groove. The third screw machine is arranged on the fourth slide groove. The third slider is arranged at the output end of the third screw machine. The second cylinder is fixedly connected to the third slider. The output end of the second cylinder is fixedly connected to the U-shaped block.

5. The axial flow fan for high temperature fire smoke exhaust ventilation as claimed in claim 4, characterized in that: The axial flow fan used for high-temperature fire smoke exhaust ventilation also includes a cooling component, and the cooling component is arranged inside the smoke exhaust housing.

6. The axial flow fan for high temperature fire smoke exhaust ventilation as claimed in claim 5, characterized in that: The cooling component includes a cooling channel, two conical shells, a water pump, a water pipe and a nozzle. The cooling channel is located inside the smoke exhaust shell. The two conical shells are fixedly connected to the smoke exhaust shell. The two conical shells are communicated with the cooling channel and are symmetrically distributed at both ends of the cooling channel. The water pump is fixedly connected to the smoke exhaust shell and is located above the smoke exhaust shell. One end of the water pipe is communicated with the water outlet end of the water pump, and the other end of the water pipe passes through the smoke exhaust shell and the cooling channel in sequence, and is communicated with the nozzle. The cooling channel has a water storage tank.

7. The axial flow fan for high temperature fire smoke exhaust ventilation as claimed in claim 6, characterized in that: The cooling component also includes a drain pipe and a sewage collection box. One end of the drain pipe passes through the smoke exhaust shell and is connected to the cooling channel. The sewage collection box is placed on one side of the protective shell, and the other end of the drain pipe is located above the sewage collection box.

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