Efficient smoke exhaust device for safety channel

Abstract

The invention discloses an efficient smoke exhaust device for a safety channel, and particularly relates to the technical field of fire safety, the efficient smoke exhaust device comprises a safety channel body, a mounting groove is formed in one side of the safety channel body, and a mounting hole is formed in one side of the interior of the mounting groove; the safety channel body, the mounting groove, the mounting hole, the first mounting cover, the exhaust fan blades, the second mounting cover, a smoke sensor, a control box, a branch connecting pipe, a connecting frame, an air inlet cover and a telescopic pipe are used in cooperation, extrusion in the safety channel body is extracted in all directions, and therefore the smoke exhaust efficiency of the safety channel body is improved; according to the smoke exhausting device for the safety channel, through the mutual cooperative use of the mounting frame, the first mounting cover, the exhaust fan blades, the first fixing frame, the driving motor, the driving synchronous belt wheel, the driven synchronous belt wheel and the control box, the effect of driving the multiple exhaust fan blades to rotate and enabling the multiple exhaust fan blades to conduct smoke exhausting operation is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of fire safety, and particularly relates to an efficient smoke exhaust device for a safety passage. Background Art

[0002] In recent years, with the expansion of commercial building areas, the problems existing in the personnel evacuation design have become increasingly apparent. Among them, the excessively long evacuation distance on the first floor and the failure of the evacuation staircase to lead directly to the outside are common problems. To ensure that people can be quickly evacuated to a safe area in case of a fire, the design of a safety passage has emerged. The safety passage can solve the problems of the excessively long evacuation distance and the non-direct connection of the evacuation staircase on the first floor to the outside in commercial buildings.

[0003] In the prior art, for fire safety, safety passages are built to connect with each floor. Traditional safety passages generally use natural smoke exhaust through doors and windows or deploy exhaust fans for mechanical smoke exhaust. However, when the exhaust fan is installed and used, its fixed timed smoke exhaust volume is fixed. Therefore, when a fire breaks out, the thick smoke generated by the fire combustion may be greater than the smoke exhaust volume of the exhaust fan. At this time, some smoke will accumulate at the bottom of the safety passage. Furthermore, since the air extraction direction of the exhaust fan is fixed, the accumulated smoke at the bottom of the safety passage is not easily discharged in time, thus affecting its smoke exhaust effect. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides an efficient smoke exhaust device for a safety passage to solve the problems raised in the above background art.

[0005] The above technical object of the present invention is achieved through the following technical solutions: An efficient smoke exhaust device for a safety passage includes a safety passage body. One side of the safety passage body is provided with a mounting groove. One side inside the mounting groove is provided with a mounting hole. A first mounting cover is fixedly installed inside the mounting hole. A plurality of exhaust fan blades are arranged inside the first mounting cover. A second mounting cover is fixedly installed on one side of the first mounting cover. A smoke sensor is fixedly installed on the top surface of the safety passage body. A control box is fixedly installed on the inner bottom surface of the safety passage body; Two sub - connecting pipes are fixedly installed inside the mounting groove. The sub - connecting pipes penetrate and extend into the inside of the second mounting cover. Two connecting frames are rotatably connected to one side of the safety passage body. A plurality of air inlet covers are fixedly installed inside the connecting frames. One side of the air inlet cover is fixedly installed with a telescopic pipe. The telescopic pipe penetrates and extends into the inside of the sub - connecting pipe; A driving component is arranged inside the first mounting cover and is used to drive a plurality of exhaust fan blades to rotate; An angle adjustment component is provided on one side of the safety passage body, and is used to adjust the use angles of a plurality of the air inlet covers; A protection component is provided inside the first installation cover, and is used to protect a plurality of the exhaust fan blades when they are not in use, so as to prevent external dust or foreign objects from accumulating inside the first installation cover and affecting the use.

[0006] By adopting the above technical solution, when a fire breaks out, smoke will enter the inside of the safety passage body along with the air. Then, the smoke sensor will feedback a signal to the control box. Then, the control box controls the start of the protection component to open it. At the same time, the control box controls the start of the driving component. At this time, the driving component will drive a plurality of exhaust fan blades to rotate, and exhaust the air inside the safety passage body. Furthermore, the wind generated by the rotation of the plurality of exhaust fan blades will generate negative pressure inside the two sub-connected pipes. Then, the air inside the safety passage body will enter the inside of the sub-connected pipes through a plurality of air inlet covers and telescopic pipes, and be discharged through the first installation cover. During this process, the control box will control the start of the angle adjustment component. Then, a plurality of air inlet covers will swing left and right repeatedly, so as to extract the extrusion inside the safety passage body in all directions, thereby improving its smoke exhaust efficiency and preventing the phenomenon of accumulated smoke inside the safety passage body.

[0007] Preferably, the driving component includes: a mounting frame, the mounting frame is fixedly installed inside the first installation cover, a plurality of the exhaust fan blades are rotatably connected to the mounting frame, a first fixing frame is fixedly installed on one side of the mounting frame, a driving motor is fixedly installed on one side of the first fixing frame, a driving synchronous pulley is arranged inside the first fixing frame, the driving synchronous pulley is fixedly sleeved on the outer circumferential wall of the rotating shaft of the exhaust fan blade, two driven synchronous pulleys are arranged on one side of the mounting frame, the driven synchronous pulleys are fixedly sleeved on the outer circumferential wall of the rotating shaft of the exhaust fan blade, a transmission synchronous belt is arranged between the driven synchronous pulley and the driving synchronous pulley, the driven synchronous pulley and the driving synchronous pulley are connected by belt transmission through the transmission synchronous belt, and the driving motor is electrically connected to the control box.

[0008] By adopting the above technical solution, the driving motor is started by the control box. Then, the driving shaft of the driving motor drives the driving synchronous pulley to rotate. Then, under the belt transmission action of the driving synchronous pulley, the driven synchronous pulley and the transmission synchronous belt, a plurality of exhaust fan blades will rotate. At this time, the rotation of the plurality of exhaust fan blades will discharge the air inside the first installation cover and the second installation cover, so that a negative pressure phenomenon is generated inside them to discharge the smoke inside the safety passage body, thereby achieving the effect of driving a plurality of exhaust fan blades to rotate and making them perform smoke exhaust operations.

[0009] Preferably, the angle adjustment assembly includes: a third fixing frame fixedly installed on one side of the safety passage body. A third electric motor is fixedly installed on the top surface of the third fixing frame. The third electric motor is electrically connected to the control box. A driving pulley is fixedly installed on the bottom surface of the driving shaft of the third electric motor. Driven pulleys are fixedly installed on the bottom surfaces of the two connecting frames. A transmission belt is arranged between the driven pulley and the driving pulley. The driving pulley and the driven pulley are connected by belt transmission through the transmission belt. Two positioning wheels are rotatably connected to one side of the safety passage body. The inner wall surface of the positioning wheel is movably sleeved with the transmission belt.

[0010] By adopting the above technical solution, the third electric motor is started through the control box. Then, the rotation of the driving shaft of the third electric motor will drive the driving pulley to rotate. Then, under the belt transmission of the driving pulley, the transmission belt and the driven pulley, the two connecting frames will drive a plurality of air inlet covers inside them to rotate, so as to achieve the effect of facilitating the adjustment of the use angles of the plurality of air inlet covers and improving their smoke exhaust efficiency.

[0011] Preferably, the protection assembly includes: two positioning frames, both of which are fixedly installed on the inner bottom surface of the first installation cover. A first lead screw is rotatably connected inside the positioning frame. A driven bevel gear is fixedly sleeved on the outer wall surface of the first lead screw. An adjusting seat is threadedly connected to the outer wall surface of the first lead screw. Connecting rods are rotatably connected to both sides of the adjusting seat respectively. Second fixing frames are fixedly installed on both sides inside the first installation cover respectively. A first electric motor is fixedly installed on one side of the second fixing frame. The first electric motor is electrically connected to the control box. A driving bevel gear is fixedly installed at one end of the driving shaft of the first electric motor. The driving bevel gear is meshed with the driven bevel gear. A plurality of vertical rods are fixedly installed on the inner bottom surface of the first installation cover. Every two vertical rods form a group. A limiting guide wheel is rotatably connected to the top surface of the vertical rod. The limiting guide wheel is slidably connected to the inner wall surface of the connecting rod. Dust-proof nets are fixedly installed on one side of the first installation cover and the second installation cover respectively. First baffles are rotatably connected to one side of the first installation cover and the second installation cover respectively. A plurality of connecting rods all penetrate through the dust-proof net and are fixedly installed with the first baffle.

[0012] By adopting the above technical solution, two first electric motors are started through the control box. Then, the rotation of the drive shaft of the first electric motor will drive the driving bevel gear to rotate. Subsequently, under the action of the meshing transmission between the driving bevel gear and the driven bevel gear, the first lead screw will rotate. At this time, under the action of the threaded transmission between the adjusting seat and the first lead screw, the adjusting seat will move downward and drive the connecting rod to move downward. Then, under the supporting and limiting action of the limiting guide wheel, the connecting rod will rotate and push two first baffles to open them, so as to facilitate the protection of the first installation cover and the second installation cover when they are not in use, and prevent external dust and rain from entering the interiors of the first installation cover and the second installation cover and affecting subsequent use.

[0013] Preferably, a first protective cover is fixedly installed on one side of the safety passage body. A plurality of air inlet holes are formed on one side of the first protective cover, and the positions of the plurality of air inlet holes correspond to the positions of the plurality of air inlet covers. A plurality of second baffles are rotatably connected to one side of the first protective cover. Two adjusting frames are arranged inside the first protective cover, and the plurality of second baffles are rotatably connected to the adjusting frames. A positioning plate is fixedly installed on one side of the safety passage body. A second lead screw is rotatably connected inside the positioning plate. Two guide rods are fixedly installed inside the positioning plate. A receiving rod is threadedly connected to the outer wall surface of the second lead screw, and the receiving rod is slidably connected to the guide rods. A second electric motor is fixedly installed on the top surface of the positioning plate. The second electric motor is electrically connected to the control box. The bottom surface of the drive shaft of the second electric motor is fixedly installed with the second lead screw. The two ends of the receiving rod are respectively fixedly installed with the two adjusting frames. A second protective cover is fixedly installed on one side of the safety passage body.

[0014] By adopting the above technical solution, the second electric motor is started through the control box. Then, the rotation of the drive shaft of the second electric motor will drive the second lead screw to rotate. Subsequently, under the action of the threaded transmission between the receiving rod and the second lead screw, the receiving rod will drive the two adjusting frames to move downward. At this time, since the adjusting frames are limited by a plurality of second baffles, the adjusting frames will rotate. Then, rotating the adjusting frames will drive a plurality of second baffles to rotate and open them, so as to facilitate the blocking of the plurality of air inlet holes when they are not in use, and prevent external dust or foreign objects from entering the interior of the first protective cover and affecting the use.

[0015] Preferably, a water tank is fixedly installed on one side inside the safety passage body. A submersible pump is fixedly installed on the inner bottom surface of the water tank. The submersible pump is electrically connected to the control box. An outer circumferential wall surface of the water outlet of the submersible pump is fixedly sleeved with a shunt pipe. A third installation cover is fixedly installed on one side of the water tank. A plurality of water mist nozzles are arranged inside the third installation cover. The shunt pipe penetrates through the third installation cover. The water mist nozzles are fixedly sleeved with the inner circumferential wall surface of the shunt pipe. An indicator light is fixedly installed on the top surface of the water tank. The indicator light is electrically connected to the control box. A water level sensor is fixedly installed inside the water tank. The water level sensor is electrically connected to the control box.

[0016] By adopting the above technical solution, water is added to the inside of the water tank. Then, when the water level is too low, the water level sensor will feedback a signal to the control box. Then, the control box will control the activation of the indicator light to make it turn on a red light, so as to facilitate timely reminding the maintenance personnel to add water to the inside of the water tank. When a fire occurs, the smoke sensor will be affected by the flue gas and feedback a signal to the control box. At this time, the control box controls the activation of the submersible pump. Then, the submersible pump will pump the water inside the water tank into the inside of the shunt pipe and spray it to the outside in the form of water mist through a plurality of water mist nozzles. Then, after the dust in the flue gas contacts the water mist, the misty water droplets will adsorb the dust in the flue gas and make it fall inside the safety passage body, reducing the accumulated smoke inside the safety passage body.

[0017] Preferably, a plurality of limiting columns are fixedly installed on the inner top surface of the first installation cover. Every two limiting columns form a group. Two mounting seats are arranged inside the first installation cover. The mounting seats are slidably connected to the limiting columns. A spring is movably sleeved on the outer circumferential wall surface of the limiting columns. A pressing wheel is rotatably connected to the inside of the mounting seat. The inner circumferential wall surface of the pressing wheel is movably sleeved with the transmission synchronous belt.

[0018] By adopting the above technical solution, it is convenient to extrude and limit the transmission synchronous belt, so that the transmission synchronous belt always maintains a certain tension and prevents it from falling off.

[0019] Preferably, a sealing groove is formed on one side of the first installation cover. A sealing gasket is fixedly installed inside the sealing groove. An embedding frame is fixedly installed on one side of the second installation cover. The embedding frame is movably sleeved with the inner wall surface of the sealing groove.

[0020] By adopting the above technical solution, it is prevented that air leakage occurs between the first installation cover and the second installation cover, which affects the smoke exhaust effect.

[0021] In summary, the present invention mainly has the following beneficial effects: 1. The present invention uses a safety passage body, a mounting groove, a mounting hole, a first mounting cover, an exhaust fan blade, a second mounting cover, a smoke sensor, a control box, a branch pipe, a connecting frame, an air inlet cover, and a telescopic pipe in cooperation to achieve the effect of extracting the extrusion inside the safety passage body in all directions, thereby improving its smoke exhaust efficiency and preventing the phenomenon of accumulated smoke inside the safety passage body.

[0022] 2. The present invention uses a mounting frame, a first mounting cover, an exhaust fan blade, a first fixing frame, a driving motor, a driving synchronous pulley, a driven synchronous pulley, and a control box in cooperation to achieve the effect of driving multiple exhaust fan blades to rotate for smoke exhaust operation.

[0023] 3. The present invention uses a third fixing frame, a safety passage body, a third electric motor, a control box, a driving belt pulley, a driven belt pulley, a connecting frame, a transmission belt, and a positioning wheel in cooperation to achieve the effect of adjusting the use angle of multiple air inlet covers and improving its smoke exhaust efficiency.

[0024] 4. The present invention uses a positioning frame, a first mounting cover, a first lead screw, a driven bevel gear, an adjusting seat, a connecting rod, a second fixing frame, a first electric motor, a control box, a driving bevel gear, a vertical rod, a limiting guide wheel, a dustproof net, and a first baffle in cooperation to achieve the effect of protecting the first mounting cover and the second mounting cover and preventing external dust and rain from entering the interiors of the first mounting cover and the second mounting cover and affecting subsequent use.

[0025] 5. The present invention uses a safety passage body, a first protective cover, an air inlet hole, an air inlet cover, a second baffle, an adjusting frame, a positioning plate, a second lead screw, a guide rod, a receiving rod, a second electric motor, a control box, and a second protective cover in cooperation to achieve the effect of blocking the air inlet holes when not in use to prevent external dust or foreign objects from entering the interior of the first protective cover and affecting its use.

[0026] 6. The present invention uses a safety passage body, a water tank, a submersible pump, a shunt pipe, a third mounting cover, a water mist nozzle, an indicator light, a control box, and a water level sensor in cooperation to achieve the effect of adsorbing the dust in the flue gas and making it fall inside the safety passage body to reduce the accumulated smoke inside the safety passage body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a structural schematic diagram of the safety passage body of the present invention; Figure 3 is a structural schematic diagram of the first protective cover of the present invention; Figure 4 is a structural schematic diagram of the branch pipe of the present invention; Figure 5 is Figure 4 The enlarged structural schematic diagram of A in Figure 6 is Figure 4 The enlarged structural schematic diagram of B in Figure 7 is the structural schematic diagram of the second installation cover of the present invention; Figure 8 is the structural schematic diagram of the first installation cover of the present invention; Figure 9 is Figure 8 The enlarged structural schematic diagram of C in Figure 10 is the structural schematic diagram of the positioning frame of the present invention; Figure 11 is the structural schematic diagram of the water tank of the present invention; Reference numerals: 1, safety passage body; 2, control box; 3, first protective cover; 4, second protective cover; 5, water tank; 6, smoke sensor; 7, first installation cover; 8, second installation cover; 9, embedding frame; 10, sealing gasket; 11, dust-proof net; 12, first baffle; 13, mounting rack; 14, exhaust fan blade; 15, positioning frame; 16, first fixing frame; 17, driving synchronous pulley; 18, driving motor; 19, driven synchronous pulley; 20, transmission synchronous belt; 21, first lead screw; 22, driven bevel gear; 23, adjusting seat; 24, second fixing frame; 25, first electric motor; 26, driving bevel gear; 27, vertical rod; 28, limiting guide wheel; 29, connecting rod; 30, installation groove; 31, installation hole; 32, branch pipe; 33, telescopic pipe; 34, connecting frame; 35, air intake cover; 36, positioning plate; 37, submersible pump; 38, shunt pipe; 39, third installation cover; 40, water mist nozzle; 41, water level sensor; 42, indicator light; 43, second baffle; 44, adjusting frame; 45, air intake hole; 46, mounting seat; 47, limiting column; 48, spring; 49, pressing wheel; 50, second lead screw; 51, guide rod; 52, receiving rod; 53, second electric motor; 54, third fixing frame; 55, third electric motor; 56, driving pulley; 57, transmission belt; 58, positioning wheel; 59, driven pulley. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment: Refer to Figure 1 ,Figure 2 , Figure 3 and Figure 4 , a high-efficiency smoke exhaust device for a safety passage, comprising: a safety passage body 1, a mounting groove 30 is formed on one side of the safety passage body 1, an installation hole 31 is formed on one side inside the mounting groove 30, a first mounting cover 7 is fixedly installed inside the installation hole 31, a plurality of exhaust fan blades 14 are arranged inside the first mounting cover 7, a second mounting cover 8 is fixedly installed on one side of the first mounting cover 7, a smoke sensor 6 is fixedly installed on the top surface of the safety passage body 1, and a control box 2 is fixedly installed on the inner bottom surface of the safety passage body 1; two branch pipes 32 are fixedly installed inside the mounting groove 30, the branch pipes 32 penetrate and extend into the second mounting cover 8, two connecting frames 34 are rotatably connected to one side of the safety passage body 1, a plurality of air inlet covers 35 are fixedly installed inside the connecting frames 34, a telescopic pipe 33 is fixedly installed on one side of the air inlet cover 35, and the telescopic pipe 33 penetrates and extends into the branch pipe 32; a driving component is arranged inside the first mounting cover 7 and is used to drive a plurality of exhaust fan blades 14 to rotate; an angle adjusting component is arranged on one side of the safety passage body 1 and is used to adjust the use angles of a plurality of air inlet covers 35; a protection component is arranged inside the first mounting cover 7 and is used to protect the plurality of exhaust fan blades 14 when they are not in use, preventing external dust or foreign objects from accumulating inside the first mounting cover 7 and affecting the use. When a fire breaks out, the smoke will enter the inside of the safety passage body 1 along with the air, and then the smoke sensor 6 will feedback the signal to the control box 2, and then the control box 2 controls to start the protection component to open it. At the same time, the control box 2 controls to start the driving component. At this time, the driving component will drive a plurality of exhaust fan blades 14 to rotate, and exhaust the air inside the safety passage body 1. Furthermore, the wind generated by the rotation of the plurality of exhaust fan blades 14 will generate negative pressure inside the two branch pipes 32. Then, the air inside the safety passage body 1 will enter the branch pipes 32 through the plurality of air inlet covers 35 and the telescopic pipes 33, and be discharged through the first mounting cover 7. During this process, the control box 2 will control to start the angle adjusting component, and then the plurality of air inlet covers 35 will swing left and right repeatedly, so as to extract the extrusion inside the safety passage body 1 in all directions, thereby improving its smoke exhaust efficiency and preventing the phenomenon of accumulated smoke inside the safety passage body 1.

[0030] Based on the above embodiments, referring to Figure 4 , Figure 6 , Figure 7 and Figure 8, the drive assembly includes: a mounting frame 13, which is fixedly installed inside the first installation cover 7. A plurality of exhaust fan blades 14 are rotatably connected to the mounting frame 13. A first fixing frame 16 is fixedly installed on one side of the mounting frame 13. A drive motor 18 is fixedly installed on one side of the first fixing frame 16. An active synchronous pulley 17 is arranged inside the first fixing frame 16. The active synchronous pulley 17 is fixedly sleeved on the outer wall surface of the rotating shaft of the exhaust fan blade 14. Two driven synchronous pulleys 19 are arranged on one side of the mounting frame 13. The driven synchronous pulleys 19 are fixedly sleeved on the outer wall surface of the rotating shaft of the exhaust fan blade 14. A transmission synchronous belt 20 is arranged between the driven synchronous pulley 19 and the active synchronous pulley 17. The driven synchronous pulley 19 and the active synchronous pulley 17 are connected by belt transmission through the transmission synchronous belt 20. The drive motor 18 is electrically connected to the control box 2. By starting the drive motor 18 through the control box 2, the drive shaft of the drive motor 18 drives the active synchronous pulley 17 to rotate. Then, under the belt transmission of the active synchronous pulley 17, the driven synchronous pulley 19 and the transmission synchronous belt 20, multiple exhaust fan blades 14 will rotate. At this time, the rotation of the multiple exhaust fan blades 14 will discharge the air inside the first installation cover 7 and the second installation cover 8, causing a negative pressure phenomenon inside to discharge the smoke inside the safety passage body 1, thereby achieving the effect of driving multiple exhaust fan blades 14 to rotate for smoke exhaust operation. The angle adjustment assembly includes: a third fixing frame 54, which is fixedly installed on one side of the safety passage body 1. A third electric motor 55 is fixedly installed on the top surface of the third fixing frame 54. The third electric motor 55 is electrically connected to the control box 2. A driving pulley 56 is fixedly installed on the bottom surface of the drive shaft of the third electric motor 55. Driven pulleys 59 are fixedly installed on the bottom surfaces of the two connecting frames 34. A transmission belt 57 is arranged between the driven pulley 59 and the driving pulley 56. The driving pulley 56 and the driven pulley 59 are connected by belt transmission through the transmission belt 57. Two positioning wheels 58 are rotatably connected to one side of the safety passage body 1. The inner wall surface of the positioning wheel 58 is movably sleeved on the transmission belt 57. By starting the third electric motor 55 through the control box 2, the drive shaft of the third electric motor 55 rotates to drive the driving pulley 56 to rotate. Then, under the belt transmission of the driving pulley 56, the transmission belt 57 and the driven pulley 59, the two connecting frames 34 will drive the multiple air inlet covers 35 inside them to rotate, thereby achieving the effect of facilitating the adjustment of the use angle of the multiple air inlet covers 35 and improving the smoke exhaust efficiency.

[0031] Based on the above embodiments, refer to Figure 7 , Figure 8 and Figure 10, the protection component includes: two positioning frames 15, both of the two positioning frames 15 are fixedly installed on the inner bottom surface of the first installation cover 7, a first lead screw 21 is rotatably connected inside the positioning frame 15, a driven bevel gear 22 is fixedly sleeved on the outer wall surface of the first lead screw 21, an adjusting seat 23 is threadedly connected to the outer wall surface of the first lead screw 21, connecting rods 29 are respectively rotatably connected to both sides of the adjusting seat 23, second fixing frames 24 are respectively fixedly installed on both sides inside the first installation cover 7, a first electric motor 25 is fixedly installed on one side of the second fixing frame 24, the first electric motor 25 is electrically connected to the control box 2, a driving shaft of the first electric motor 25 is fixedly installed with a driving bevel gear 26, the driving bevel gear 26 is meshed and connected with the driven bevel gear 22, a plurality of vertical rods 27 are fixedly installed on the inner bottom surface of the first installation cover 7, every two vertical rods 27 form a group, a limiting guide wheel 28 is rotatably connected to the top surface of the vertical rod 27, the limiting guide wheel 28 is slidably connected to the inner wall surface of the connecting rod 29, dust-proof nets 11 are respectively fixedly installed on one side of the first installation cover 7 and the second installation cover 8, first baffles 12 are respectively rotatably connected to one side of the first installation cover 7 and the second installation cover 8, a plurality of connecting rods 29 all penetrate through the dust-proof net 11 and are fixedly installed with the first baffles 12. By starting the two first electric motors 25 through the control box 2, the driving shaft of the first electric motor 25 rotates to drive the driving bevel gear 26 to rotate. Then, under the meshing transmission of the driving bevel gear 26 and the driven bevel gear 22, the first lead screw 21 rotates. At this time, under the threaded transmission of the adjusting seat 23 and the first lead screw 21, the adjusting seat 23 moves downward and drives the connecting rod 29 to move downward. Then, under the supporting and limiting action of the limiting guide wheel 28, the connecting rod 29 rotates and pushes the two first baffles 12 to open, so as to facilitate the protection of the first installation cover 7 and the second installation cover 8 when they are not in use, and prevent external dust and rain from entering the interiors of the first installation cover 7 and the second installation cover 8 and affecting subsequent use; Based on the above embodiment, refer to Figure 3 , Figure 4 and Figure 5, on one side of the safety passage body 1, a first protective cover 3 is fixedly installed. On one side of the first protective cover 3, a number of air inlet holes 45 are provided. The positions of the number of air inlet holes 45 correspond to the positions of the number of air inlet covers 35. A number of second baffles 43 are rotatably connected to one side of the first protective cover 3. Two adjusting frames 44 are arranged inside the first protective cover 3. The number of second baffles 43 is rotatably connected to the adjusting frames 44. A positioning plate 36 is fixedly installed on one side of the safety passage body 1. A second lead screw 50 is rotatably connected inside the positioning plate 36. Two guide rods 51 are fixedly installed inside the positioning plate 36. A receiving rod 52 is threadedly connected to the outer wall surface of the second lead screw 50. The receiving rod 52 is slidably connected to the guide rods 51. A second electric motor 53 is fixedly installed on the top surface of the positioning plate 36. The second electric motor 53 is electrically connected to the control box 2. The bottom surface of the drive shaft of the second electric motor 53 is fixedly installed with the second lead screw 50. The two ends of the receiving rod 52 are respectively fixedly installed with the two adjusting frames 44. A second protective cover 4 is fixedly installed on one side of the safety passage body 1. By starting the second electric motor 53 through the control box 2, the drive shaft of the second electric motor 53 rotates to drive the second lead screw 50 to rotate. Then, under the threaded drive of the receiving rod 52 and the second lead screw 50, the receiving rod 52 drives the two adjusting frames 44 to move downward. At this time, since the adjusting frames 44 are limited by a number of second baffles 43, the adjusting frames 44 will rotate. Then, rotating the adjusting frames 44 will drive a number of second baffles 43 to rotate and open, so as to facilitate blocking the air inlet holes 45 when not in use and prevent external dust or foreign objects from entering the inside of the first protective cover 3 and affecting the use.

[0032] Based on the above embodiments, referring to Figure 2 , Figure 7 , Figure 9 and Figure 11, on one inner side of the safety passage body 1, a water tank 5 is fixedly installed. On the inner bottom surface of the water tank 5, a submersible pump 37 is fixedly installed. The submersible pump 37 is electrically connected to the control box 2. An outer circumferential wall surface of the water outlet of the submersible pump 37 is fixedly sleeved with a shunt pipe 38. On one side of the water tank 5, a third installation cover 39 is fixedly installed. Inside the third installation cover 39, a number of water mist nozzles 40 are arranged. The shunt pipe 38 penetrates through the third installation cover 39, and the water mist nozzles 40 are fixedly sleeved with the inner circumferential wall surface of the shunt pipe 38. On the top surface of the water tank 5, an indicator light 42 is fixedly installed. The indicator light 42 is electrically connected to the control box 2. Inside the water tank 5, a water level sensor 41 is fixedly installed. The water level sensor 41 is electrically connected to the control box 2. By adding water inside the water tank 5, when the water level is too low, the water level sensor 41 will feedback a signal to the control box 2, and then the control box 2 will control the start of the indicator light 42 to make it light red, so as to facilitate timely reminding the maintenance personnel to add water inside the water tank 5. When a fire breaks out, the smoke sensor 6 will be affected by the smoke and feedback a signal to the control box 2. At this time, the control box 2 controls the start of the submersible pump 37. Then, the submersible pump 37 will pump the water inside the water tank 5 into the inside of the shunt pipe 38 and spray it to the outside in the form of water mist through a number of water mist nozzles 40. After that, when the dust in the smoke contacts the water mist, the misty water droplets will adsorb the dust in the smoke and make it fall inside the safety passage body 1, reducing the accumulated smoke inside the safety passage body 1. On the inner top surface of the first installation cover 7, a number of limit posts 47 are fixedly installed. Every two limit posts 47 form a group. Inside the first installation cover 7, two mounting seats 46 are arranged. The mounting seats 46 are slidably connected to the limit posts 47. An outer circumferential wall surface of the limit posts 47 is movably sleeved with a spring 48. Inside the mounting seats 46, a pressure wheel 49 is rotatably connected. An inner circumferential wall surface of the pressure wheel 49 is movably sleeved with the transmission synchronous belt 20, which is convenient for squeezing and limiting the transmission synchronous belt 20, so that the transmission synchronous belt 20 always maintains a certain tension and prevents it from falling off. On one side of the first installation cover 7, a sealing groove is opened. Inside the sealing groove, a sealing gasket 10 is fixedly installed. On one side of the second installation cover 8, a fitting frame 9 is fixedly installed. The fitting frame 9 is movably sleeved with the inner wall surface of the sealing groove, preventing air leakage between the first installation cover 7 and the second installation cover 8 from affecting the smoke exhaust effect.

[0033] Working principle: Please refer to Figures 1 - 11As shown, during use, the staff adds water inside the water tank 5. When the water level is too low, the water level sensor 41 will feedback a signal to the control box 2, and then the control box 2 will control the start of the indicator light 42 to turn on the red light, so as to facilitate timely reminding the maintenance personnel to add water inside the water tank 5. When a fire breaks out, the smoke sensor 6 will be affected by the flue gas and feedback a signal to the control box 2. At this time, the control box 2 controls the start of the drive motor 18, the first electric motor 25, the third electric motor 55, the second electric motor 53 and the submersible pump 37. Then, the submersible pump 37 will pump the water inside the water tank 5 into the inside of the shunt pipe 38 and spray it to the outside in the form of water mist through multiple water mist nozzles 40. After that, when the dust in the flue gas comes into contact with the water mist, the misty water droplets will adsorb the dust in the flue gas and make it fall inside the safety passage body 1, reducing the accumulated smoke inside the safety passage body 1. At the same time, the rotation of the drive shaft of the first electric motor 25 will drive the active bevel gear 26 to rotate. Then, under the meshing transmission of the active bevel gear 26 and the driven bevel gear 22, the first lead screw 21 will rotate. Then, under the thread transmission of the first lead screw 21 and the adjusting seat 23, the adjusting seat 23 will move downward. At this time, the downward moving adjusting seat 23 will drive the connecting rod 29 to rotate. Then, the rotating connecting rod 29 will push two first baffles 12 to rotate and open. And the rotation of the drive shaft of the second electric motor 53 will drive the second lead screw 50 to rotate. Then, under the thread transmission of the second lead screw 50 and the receiving rod 52, the receiving rod 52 will move downward. At this time, the downward moving receiving rod 52 will drive two adjusting frames 44 to move and drive multiple second baffles 43 to rotate by itself, so as to open multiple second baffles 43. After the above steps are completed, the rotation of the drive shaft of the drive motor 18 will drive the active synchronous pulley 17 to rotate. Then, under the belt transmission of the active synchronous pulley 17, the driven synchronous pulley 19 and the transmission synchronous belt 20, multiple exhaust fan blades 14 will rotate to generate negative pressure inside the first installation cover 7. Then, under the action of the atmospheric pressure, the flue gas inside the safety passage body 1 will enter the second installation cover 8 and the first installation cover 7 for discharge. At the same time, the negative pressure phenomenon inside the second installation cover 8 will act on the inside of multiple air inlet covers 35 through two branch pipes 32. At this time, multiple air inlet covers 35 will suck and exhaust the flue gas inside the safety passage body 1. Then, the rotation of the drive shaft of the third electric motor 55 will drive the active pulley 56 to rotate. Then, under the belt transmission of the active pulley 56 / driven pulley 59 and the transmission belt 57, two connecting frames 34 will drive multiple air inlet covers 35 to rotate, so as to extract and exhaust the flue gas inside the safety passage body 1 from different directions, thereby achieving the effect of improving the flue gas discharge efficiency.

[0034] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient smoke exhaust device for a safety passage, characterized in that, Including: A safety passage body (1), on one side of the safety passage body (1) there is a mounting groove (30), on one side inside the mounting groove (30) there is a mounting hole (31), inside the mounting hole (31) there is fixedly installed a first mounting cover (7), inside the first mounting cover (7) there are provided several exhaust fan blades (14), on one side of the first mounting cover (7) there is fixedly installed a second mounting cover (8), on the top surface of the safety passage body (1) there is fixedly installed a smoke sensor (6), and on the inner bottom surface of the safety passage body (1) there is fixedly installed a control box (2); Inside the mounting groove (30) there are fixedly installed two branch pipes (32), the branch pipes (32) penetrate and extend to the inside of the second mounting cover (8), on one side of the safety passage body (1) there are rotatably connected two connecting frames (34), inside the connecting frames (34) there are fixedly installed several air inlet covers (35), on one side of the air inlet cover (35) there is fixedly installed a telescopic pipe (33), and the telescopic pipe (33) penetrates and extends to the inside of the branch pipe (32); Inside the first mounting cover (7) there is provided a driving assembly, and it is used to drive several exhaust fan blades (14) to rotate; On one side of the safety passage body (1) there is provided an angle adjusting assembly, and it is used to adjust the use angle of multiple air inlet covers (35); Inside the first mounting cover (7) there is provided a protection assembly, and it is used to protect several exhaust fan blades (14) when they are not in use, preventing external dust or foreign objects from accumulating inside the first mounting cover (7) and affecting the use.

2. The efficient smoke exhaust device for a safety passage according to claim 1, characterized in that, The driving assembly includes: a mounting frame (13), the mounting frame (13) is fixedly installed inside the first mounting cover (7), several exhaust fan blades (14) are rotatably connected to the mounting frame (13), on one side of the mounting frame (13) there is fixedly installed a first fixing frame (16), on one side of the first fixing frame (16) there is fixedly installed a driving motor (18), inside the first fixing frame (16) there is provided a driving synchronous pulley (17), the driving synchronous pulley (17) is fixedly sleeved on the outer wall surface of the rotating shaft of the exhaust fan blade (14), on one side of the mounting frame (13) there are provided two driven synchronous pulleys (19), the driven synchronous pulleys (19) are fixedly sleeved on the outer wall surface of the rotating shaft of the exhaust fan blade (14), between the driven synchronous pulley (19) and the driving synchronous pulley (17) there is provided a transmission synchronous belt (20), and the driven synchronous pulley (19) and the driving synchronous pulley (17) are connected by belt transmission through the transmission synchronous belt (20), and the driving motor (18) is electrically connected to the control box (2).

3. The efficient smoke exhaust device for a safety passage according to claim 2, characterized in that: On the inner top surface of the first mounting cover (7) there are fixedly installed several limiting columns (47), every two limiting columns (47) form a group, inside the first mounting cover (7) there are provided two mounting seats (46), the mounting seats (46) are slidably connected to the limiting columns (47), on the outer wall surface of the limiting column (47) there is movably sleeved a spring (48), inside the mounting seat (46) there is rotatably connected a pressing wheel (49), and the inner wall surface of the pressing wheel (49) is movably sleeved on the transmission synchronous belt (20).

4. The efficient smoke exhaust device for a safety passage according to claim 1, characterized in that, The angle adjustment assembly includes: a third fixing bracket (54) fixedly installed on one side of the safety passage body (1). A third electric motor (55) is fixedly installed on the top surface of the third fixing bracket (54). The third electric motor (55) is electrically connected to the control box (2). A driving pulley (56) is fixedly installed on the bottom surface of the driving shaft of the third electric motor (55). Driven pulleys (59) are fixedly installed on the bottom surfaces of two connecting brackets (34). A transmission belt (57) is arranged between the driven pulley (59) and the driving pulley (56). The driving pulley (56) and the driven pulley (59) are connected by belt transmission through the transmission belt (57). Two positioning wheels (58) are rotatably connected to one side of the safety passage body (1). The inner wall surface of the positioning wheel (58) is movably sleeved with the transmission belt (57).

5. The efficient smoke exhaust device for a safety passage according to claim 1, characterized in that, The protection assembly includes: two positioning brackets (15) both fixedly installed on the inner bottom surface of the first installation cover (7). A first lead screw (21) is rotatably connected inside the positioning bracket (15). A driven bevel gear (22) is fixedly sleeved on the outer wall surface of the first lead screw (21). An adjusting seat (23) is threadedly connected to the outer wall surface of the first lead screw (21). Connecting rods (29) are rotatably connected to both sides of the adjusting seat (23) respectively. Second fixing brackets (24) are fixedly installed on both sides inside the first installation cover (7). A first electric motor (25) is fixedly installed on one side of the second fixing bracket (24). The first electric motor (25) is electrically connected to the control box (2). A driving bevel gear (26) is fixedly installed at one end of the driving shaft of the first electric motor (25). The driving bevel gear (26) is meshed with the driven bevel gear (22). A plurality of vertical rods (27) are fixedly installed on the inner bottom surface of the first installation cover (7). Every two vertical rods (27) form a group. A limiting guide wheel (28) is rotatably connected to the top surface of the vertical rod (27). The limiting guide wheel (28) is slidably connected to the inner wall surface of the connecting rod (29). Dust-proof nets (11) are fixedly installed on one side of the first installation cover (7) and the second installation cover (8) respectively. First baffles (12) are rotatably connected to one side of the first installation cover (7) and the second installation cover (8) respectively. A plurality of connecting rods (29) all penetrate through the dust-proof net (11) and are fixedly installed with the first baffle (12).

6. The efficient smoke exhaust device for a safety passage according to claim 1, characterized in that: On one side of the safety passage body (1), a first protective cover (3) is fixedly installed. On one side of the first protective cover (3), a plurality of air inlet holes (45) are opened. The positions of the plurality of air inlet holes (45) correspond to the positions of a plurality of air inlet covers (35). On one side of the first protective cover (3), a plurality of second baffles (43) are rotatably connected. Inside the first protective cover (3), two adjusting frames (44) are arranged. The plurality of second baffles (43) are rotatably connected to the adjusting frames (44). On one side of the safety passage body (1), a positioning plate (36) is fixedly installed. Inside the positioning plate (36), a second lead screw (50) is rotatably connected. Inside the positioning plate (36), two guide rods (51) are fixedly installed. A receiving rod (52) is threadedly connected to the outer wall surface of the second lead screw (50). The receiving rod (52) is slidably connected to the guide rods (51). On the top surface of the positioning plate (36), a second electric motor (53) is fixedly installed. The second electric motor (53) is electrically connected to the control box (2). The bottom surface of the drive shaft of the second electric motor (53) is fixedly installed with the second lead screw (50). The two ends of the receiving rod (52) are respectively fixedly installed with the two adjusting frames (44). On one side of the safety passage body (1), a second protective cover (4) is fixedly installed.

7. The efficient smoke exhaust device for a safety passage according to claim 1, characterized in that: On one side inside the safety passage body (1), a water tank (5) is fixedly installed. On the inner bottom surface of the water tank (5), a submersible pump (37) is fixedly installed. The submersible pump (37) is electrically connected to the control box (2). The outer wall surface of the water outlet of the submersible pump (37) is fixedly sleeved with a shunt pipe (38). On one side of the water tank (5), a third installation cover (39) is fixedly installed. Inside the third installation cover (39), a plurality of water mist nozzles (40) are arranged. The shunt pipe (38) penetrates through the third installation cover (39). The water mist nozzles (40) are fixedly sleeved with the inner wall surface of the shunt pipe (38). On the top surface of the water tank (5), an indicator light (42) is fixedly installed. The indicator light (42) is electrically connected to the control box (2). Inside the water tank (5), a water level sensor (41) is fixedly installed. The water level sensor (41) is electrically connected to the control box (2).

8. The efficient smoke exhaust device for a safety passage according to claim 1, characterized in that: On one side of the first installation cover (7), a sealing groove is opened. Inside the sealing groove, a sealing gasket (10) is fixedly installed. On one side of the second installation cover (8), a fitting frame (9) is fixedly installed. The fitting frame (9) is movably sleeved with the inner wall surface of the sealing groove.

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