A high-efficiency smoke exhaust device for safety passage

Abstract

The present invention discloses a high-efficiency smoke exhaust device for a safety passage, specifically relating to the field of fire safety technology, comprising a safety passage body, a mounting groove being provided on one side of the safety passage body, and a mounting hole being provided on one side inside the mounting groove. The present invention achieves the effect of extracting the interior of the safety passage body in all directions by coordinating the use of the safety passage body, the mounting groove, the mounting hole, the first mounting cover, the exhaust fan blades, the second mounting cover, the smoke sensor, the control box, the branch pipe, the connecting frame, the air intake cover and the telescopic tube, thereby improving its smoke exhaust efficiency and preventing smoke accumulation inside the safety passage body. The present invention achieves the effect of driving multiple exhaust fan blades to rotate and perform smoke exhaust operations by coordinating the use of the mounting frame, the first mounting cover, the exhaust fan blades, the first fixing frame, the driving motor, the active synchronous pulley, the driven synchronous pulley and the control box.

Description

Technical Field

[0001] The present invention relates to the technical field of fire safety, and in particular to a high-efficiency smoke exhaust device for a safety passage. Background Art

[0002] In recent years, with the expansion of commercial building area, problems in their personnel evacuation design have become increasingly apparent. Among them, the long evacuation distance on the first floor and the inability of evacuation stairwells to directly access the outdoors are frequently encountered problems. In order to ensure that personnel can be quickly evacuated to a safe area in the event of a fire, the design of safety passages was born. Safety passages can solve the common personnel evacuation design problems in commercial buildings, such as the long evacuation distance and the inability of evacuation stairwells on the first floor to directly access the outdoors.

[0003] In the existing technology, for fire safety, a safety passage is built to connect with each floor. Traditional safety passages generally use doors and windows for natural smoke exhaust or deploy exhaust fans for mechanical smoke exhaust. However, the exhaust fan's own timed smoke exhaust volume is fixed when it is installed and used. When a fire occurs, the thick smoke generated by the fire will be greater than the exhaust volume of the exhaust fan. At this time, some smoke will accumulate at the bottom of the safety passage. Since the exhaust direction of the exhaust fan is fixed, the accumulated smoke at the bottom of the safety passage will not be easily discharged in time, which will affect its smoke exhaust effect. Summary of the Invention

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

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A high-efficiency smoke exhaust device for a safety passage comprises a safety passage body, a mounting groove is formed on one side of the safety passage body, a mounting hole is formed on one side of the mounting groove, a first mounting cover is fixedly mounted inside the mounting hole, a plurality of exhaust fan blades are provided inside the first mounting cover, a second mounting cover is fixedly mounted on one side of the first mounting cover, a smoke sensor is fixedly mounted on the top surface of the safety passage body, and a control box is fixedly mounted on the bottom surface of the interior of the safety passage body;

[0007] Two branch pipes are fixedly installed inside the installation groove, and the branch pipes pass through and extend into the interior of the second installation cover. One side of the safety passage body is rotatably connected to two connecting frames, and a plurality of air intake covers are fixedly installed inside the connecting frames. A telescopic pipe is fixedly installed on one side of the air intake cover, and the telescopic pipe passes through and extends into the interior of the branch pipes;

[0008] A driving assembly is provided inside the first installation cover and is used to drive a plurality of exhaust fan blades to rotate;

[0009] An angle adjustment component is provided on one side of the safety passage body, and is used to adjust the use angles of the multiple air intake hoods;

[0010] A protective component is provided inside the first installation cover, and is used to protect the exhaust fan blades when they are not in use, so as to prevent external dust or foreign matter from accumulating inside the first installation cover and affecting use.

[0011] By adopting the above technical solution, when a fire occurs, smoke will enter the interior of the safety passage body along with the air, and then the smoke sensor will feed back the signal to the control box, and then the control box will control the start of the protection component to make it open, and at the same time the control box will control the start of the drive component. At this time, the drive component will drive multiple exhaust fan blades to rotate, and exhaust the air inside the safety passage body. Then the wind force generated by the rotation of multiple exhaust fan blades will cause negative pressure to be generated inside the two branch pipes, and then the air inside the safety passage body will enter the interior of the branch pipe through multiple air intake hoods and telescopic tubes, and be discharged through the first mounting hood. During this process, the control box will control the start of the angle adjustment component, and then the multiple air intake hoods will swing back and forth, so that the extrusion inside the safety passage body can be extracted in all directions, thereby improving its smoke exhaust efficiency and preventing smoke accumulation inside the safety passage body.

[0012] Preferably, the drive assembly includes: a mounting frame, the mounting frame is fixedly mounted inside the first mounting cover, a plurality of the exhaust fan blades are rotatably connected to the mounting frame, a first fixing frame is fixedly mounted on one side of the mounting frame, a driving motor is fixedly mounted on one side of the first fixing frame, an active synchronous pulley is provided inside the first fixing frame, the active synchronous pulley is fixedly sleeved on the outer circular wall surface of the exhaust fan blade rotating shaft, two driven synchronous pulleys are provided on one side of the mounting frame, the driven synchronous pulleys are fixedly sleeved on the outer circular wall surface of the exhaust fan blade rotating shaft, a transmission synchronous belt is provided between the driven synchronous pulley and the active synchronous pulley, the driven synchronous pulley and the active synchronous pulley are transmission-connected via the transmission synchronous belt, and the driving motor is electrically connected to the control box.

[0013] By adopting the above technical solution, the drive motor is started through the control box, and then the drive shaft of the drive motor drives the active synchronous pulley to rotate, and then under the belt transmission action of the active synchronous pulley, the driven synchronous pulley and the transmission synchronous belt, multiple exhaust fan blades will rotate. At this time, the rotation of the multiple 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 to discharge the smoke inside the safety passage body, thereby achieving the effect of driving the multiple exhaust fan blades to rotate and perform smoke exhaust operations.

[0014] Preferably, the angle adjustment assembly includes: a third fixing frame, the third fixing frame is fixedly mounted on one side of the safety passage body, a third electric motor is fixedly mounted 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 mounted on the bottom surface of the third electric motor drive shaft, a driven pulley is fixedly mounted on the bottom surfaces of the two connecting frames, a transmission belt is provided between the driven pulley and the driving pulley, the driving pulley and the driven pulley are connected by the transmission belt, and two positioning wheels are rotatably connected to one side of the safety passage body, and the inner circular wall surface of the positioning wheel is movably engaged with the transmission belt.

[0015] By adopting the above technical solution, the third electric motor is started through the control box, and the rotation of the drive shaft of the third electric motor will drive the driving pulley to rotate. Then, under the belt transmission action of the driving pulley, the transmission belt and the driven pulley, the two connecting frames will drive the multiple air intake hoods inside them to rotate, thereby achieving the effect of facilitating the adjustment of the use angles of the multiple air intake hoods and improving their smoke exhaust efficiency.

[0016] Preferably, the protection assembly includes: two positioning brackets, both of which are fixedly mounted on the inner bottom surface of the first mounting cover, the inner portion of the positioning bracket is rotatably connected to a first screw rod, the outer circumferential wall surface of the first screw rod is fixedly sleeved with a driven bevel gear, the outer circumferential wall surface of the first screw rod is threadedly connected to an adjustment seat, both sides of the adjustment seat are rotatably connected to connecting rods, second fixing brackets are fixedly mounted on both sides of the inner portion of the first mounting cover, a first electric motor is fixedly mounted on one side of the second fixing bracket, the first electric motor is electrically connected to the control box, and the first electric motor One end of the motor drive shaft is fixedly installed with an active bevel gear, and the active bevel gear is meshed with the driven bevel gear. A number of vertical poles are fixedly installed on the inner bottom surface of the first mounting cover, and each two vertical poles form a group. The top surface of the vertical pole is rotatably connected to a limiting guide wheel, and the limiting guide wheel is slidably connected to the inner wall surface of the connecting rod. A dustproof net is fixedly installed on one side of the first mounting cover and the second mounting cover, and a first baffle is rotatably connected on one side of the first mounting cover and the second mounting cover, and a number of the connecting rods pass through the dustproof net and are fixedly installed on the first baffle.

[0017] By adopting the above technical solution, the two first electric motors are started through the control box, and then the rotation of the drive shaft of the first electric motor will drive the active bevel gear to rotate, and then under the tooth meshing transmission action of the active bevel gear and the driven bevel gear, the first screw rod will rotate. At this time, under the threaded transmission action of the adjusting seat and the first screw rod, the adjusting seat will move downward and drive the connecting rod to move downward, and then under the support and limiting action of the limiting guide wheel, the connecting rod will rotate and push the two first baffles to open them, so as to facilitate the protection of the first mounting cover and the second mounting cover when they are not in use, and prevent external dust and rainwater from entering the interior of the first mounting cover and the second mounting cover and affecting subsequent use.

[0018] Preferably, a first protective cover is fixedly installed on one side of the safety passage body, and a plurality of air inlet holes are opened 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, and a plurality of second baffles are rotatably connected to one side of the first protective cover, two adjustment frames are provided inside the first protective cover, and a plurality of second baffles are rotatably connected to the adjustment frames, a positioning plate is fixedly installed on one side of the safety passage body, the interior of the positioning plate is rotatably connected to a second screw rod, two guide rods are fixedly installed on the interior of the positioning plate, the outer circular wall surface of the second screw rod is threadedly connected to a receiving rod, and the receiving rod is slidably connected to the guide rod, and 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 second electric motor drive shaft is fixedly installed on the second screw rod, and the two ends of the receiving rod are respectively fixedly installed on the two adjusting frames, and a second protective cover is fixedly installed on one side of the safety passage body.

[0019] By adopting the above technical solution, the second electric motor is started through the control box, and the rotation of the drive shaft of the second electric motor will drive the second screw to rotate, and then under the threaded transmission action of the connecting rod and the second screw, the connecting rod will drive the two adjustment frames to move downward. At this time, since the adjustment frame is limited by multiple second baffles, the adjustment frame will rotate, and then rotating the adjustment frame will drive multiple second baffles to rotate to open them, so as to make it easier to block the air inlet when it is not in use, preventing external dust or foreign matter from entering the interior of the first protective cover and affecting its use.

[0020] Preferably, a water tank is fixedly installed on one side of the inner part of 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, a diversion pipe is fixedly sleeved on the outer circular wall of the water outlet of the submersible pump, a third mounting cover is fixedly installed on one side of the water tank, a plurality of water mist nozzles are arranged inside the third mounting cover, the diversion pipe passes through the third mounting cover, the water mist nozzle is fixedly sleeved on the inner circular wall of the diversion 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, and the water level sensor is electrically connected to the control box.

[0021] By adopting the above technical solution, water is added to the inside of the water tank, and when the water level is too low, the water level sensor will feed back a signal to the control box, and then the control box will control the start indicator light to light up red, so as to promptly remind maintenance personnel to add water to the inside of the water tank. When a fire occurs, the smoke sensor will be affected by the smoke and feed back a signal to the control box. At this time, the control box controls the start of the submersible pump, and then the submersible pump will draw the water inside the water tank into the inside of the diversion pipe, and spray it to the outside in the form of water mist through multiple water mist nozzles. After the dust inside the smoke comes into contact with the water mist, the mist water droplets will adsorb the dust in the smoke and make it fall into the inside of the safety passage body, reducing the accumulation of smoke inside the safety passage body.

[0022] Preferably, a plurality of limit columns are fixedly installed on the inner top surface of the first mounting cover, and each two limit columns form a group. Two mounting seats are provided inside the first mounting cover, and the mounting seats are slidably connected to the limit columns. The outer circular wall surface of the limit columns is movably sleeved with a spring, and the interior of the mounting seat is rotatably connected with a pressure wheel, and the inner circular wall surface of the pressure wheel is movably sleeved with the transmission synchronous belt.

[0023] By adopting the above technical solution, it is convenient to squeeze and limit the transmission synchronous belt, so that the transmission synchronous belt always maintains a certain tension and prevents it from falling off.

[0024] Preferably, a sealing groove is provided on one side of the first mounting cover, a sealing gasket is fixedly installed inside the sealing groove, and an embedding frame is fixedly installed on one side of the second mounting cover, and the embedding frame is movably connected to the inner wall surface of the sealing groove.

[0025] By adopting the above technical solution, air leakage between the first mounting cover and the second mounting cover is prevented from affecting the smoke exhaust effect.

[0026] In summary, the present invention mainly has the following beneficial effects:

[0027] 1. The present invention achieves the effect of extracting the inside of the safety passage body in all directions by coordinating the use of the safety passage body, the installation groove, the installation hole, the first installation cover, the exhaust fan blade, the second installation cover, the smoke sensor, the control box, the branch pipe, the connecting frame, the air intake cover and the telescopic tube, thereby improving the smoke exhaust efficiency and preventing the accumulation of smoke inside the safety passage body.

[0028] 2. The present invention achieves the effect of driving multiple exhaust fan blades to rotate and perform smoke exhaust operations by using the mounting frame, the first mounting cover, the exhaust fan blades, the first fixing frame, the driving motor, the active synchronous pulley, the driven synchronous pulley and the control box in coordination with each other.

[0029] 3. The present invention achieves the effect of adjusting the use angles of multiple air intake hoods and improving their smoke exhaust efficiency by using the third fixing frame, the safety channel body, the third electric motor, the control box, the driving pulley, the driven pulley, the connecting frame, the transmission belt and the positioning wheel in coordination with each other.

[0030] 4. The present invention achieves the effect of protecting the first mounting cover and the second mounting cover by using the positioning frame, the first mounting cover, the first screw rod, the driven bevel gear, the adjustment seat, the connecting rod, the second fixing frame, the first electric motor, the control box, the active bevel gear, the vertical rod, the limiting guide wheel, the dustproof net and the first baffle in coordination with each other, thereby preventing the external dust and rainwater from entering the interior of the first mounting cover and the second mounting cover and affecting the subsequent use.

[0031] 5. The present invention achieves the effect of sealing the air intake hole when not in use by cooperating with the safety passage body, the first protective cover, the air intake hole, the air intake cover, the second baffle, the adjustment frame, the positioning plate, the second screw rod, the guide rod, the receiving rod, the second electric motor, the control box and the second protective cover to prevent external dust or foreign matter from entering the interior of the first protective cover and affecting its use.

[0032] 6. The present invention achieves the effect of adsorbing dust in the flue gas and causing it to fall into the interior of the safety passage body, thereby reducing smoke accumulation inside the safety passage body, through the coordinated use of the safety passage body, water tank, submersible pump, diversion pipe, third installation cover, water mist nozzle, indicator light, control box and water level sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of the safety passage body of the present invention;

[0035] Figure 3 It is a schematic structural diagram of the first protective cover of the present invention;

[0036] Figure 4 This is a schematic diagram of the branch pipe structure of the present invention;

[0037] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of A;

[0038] Figure 6 yes Figure 4 Schematic diagram of the enlarged structure of B;

[0039] Figure 7 It is a schematic diagram of the second mounting cover structure of the present invention;

[0040] Figure 8 It is a schematic diagram of the first mounting cover structure of the present invention;

[0041] Figure 9 yes Figure 8 Schematic diagram of the enlarged structure of C in the middle;

[0042] Figure 10 It is a schematic structural diagram of the positioning frame of the present invention;

[0043] Figure 11 It is a schematic diagram of the water tank structure of the present invention;

[0044] Figure numerals: 1, safety passage body; 2, control box; 3, first protective cover; 4, second protective cover; 5, water tank; 6, smoke sensor; 7, first mounting cover; 8, second mounting cover; 9, embedded frame; 10, sealing gasket; 11, dust net; 12, first baffle; 13, mounting frame; 14, exhaust fan blade; 15, positioning frame; 16, first fixing frame; 17, active synchronous pulley; 18, driving motor; 19, driven synchronous pulley; 20, transmission synchronous belt; 21, first screw rod; 22, driven bevel gear; 23, adjustment seat; 24, second fixing frame; 25, first electric motor; 26, active bevel gear; 27, vertical pole; 28, limit guide wheel; 29, connection Rod; 30. Mounting groove; 31. Mounting hole; 32. Branch pipe; 33. Telescopic pipe; 34. Connecting frame; 35. Air intake cover; 36. Positioning plate; 37. Submersible pump; 38. Diverter pipe; 39. Third mounting 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. Pressure wheel; 50. Second screw rod; 51. Guide rod; 52. Supporting 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 DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] Example: Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A high-efficiency smoke exhaust device for a safety passage comprises: a safety passage body 1, a mounting groove 30 is opened on one side of the safety passage body 1, a mounting hole 31 is opened on one side of the mounting groove 30, a first mounting cover 7 is fixedly installed inside the mounting 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 bottom surface of the safety passage body 1; two branch joints are fixedly installed inside the mounting groove 30. The branch pipe 32 passes through and extends to the inside of the second mounting cover 8. One side of the safety passage body 1 is rotatably connected to two connecting frames 34. Several air inlet covers 35 are fixedly installed inside the connecting frame 34. One side of the air inlet cover 35 is fixedly installed with a telescopic pipe 33. The telescopic pipe 33 passes through and extends to the inside of the branch pipe 32; a driving component is provided inside the first mounting cover 7, and is used to drive several exhaust fan blades 14 to rotate; an angle adjustment component is provided on one side of the safety passage body 1, and is used to adjust the use angle of multiple air inlet covers 35; the first A protective component is provided inside the first mounting cover 7, and is used to protect the exhaust fan blades 14 when they are not in use, to prevent external dust or foreign matter from accumulating inside the first mounting cover 7 and affecting its use. When a fire occurs, smoke will enter the interior of the safety passage body 1 along with the air, and then the smoke sensor 6 will feed back a signal to the control box 2, and then the control box 2 controls the start of the protective component to open it, and at the same time, the control box 2 controls the start of the driving component, at this time the driving component will drive the multiple exhaust fan blades 14 to rotate, and exhaust the air inside the safety passage body 1 Processing, and then the wind force generated by the rotation of multiple exhaust fan blades 14 will cause negative pressure to be generated inside the two branch pipes 32, and then the air inside the safety passage body 1 will enter the interior of the branch pipe 32 through multiple air intake hoods 35 and telescopic tubes 33, and be discharged through the first mounting hood 7. During this process, the control box 2 will control the start-up angle adjustment component, and then the multiple air intake hoods 35 will swing back and forth repeatedly, so that the extrusion inside the safety passage body 1 can be extracted in all directions, thereby improving its smoke exhaust efficiency and preventing smoke accumulation inside the safety passage body 1.

[0047] Based on the above embodiment, refer to Figure 4 、 Figure 6 、 Figure 7 and Figure 8 The drive assembly includes: a mounting frame 13, the mounting frame 13 is fixedly mounted inside the first mounting cover 7, a plurality of exhaust fan blades 14 are rotatably connected to the mounting frame 13, a first fixing frame 16 is fixedly mounted on one side of the mounting frame 13, a driving motor 18 is fixedly mounted on one side of the first fixing frame 16, a driving synchronous pulley 17 is provided inside the first fixing frame 16, the driving synchronous pulley 17 is fixedly sleeved with the outer circumferential wall surface of the rotating shaft of the exhaust fan blade 14, two driven synchronous pulleys 19 are provided on one side of the mounting frame 13, the driven synchronous pulley 19 is fixedly sleeved with the outer circumferential wall surface of the rotating shaft of the exhaust fan blade 14, the driven synchronous pulley 19 and the driving synchronous pulley A transmission synchronous belt 20 is provided between 17, and the driven synchronous pulley 19 and the active synchronous pulley 17 are connected by the transmission synchronous belt 20. The drive motor 18 is electrically connected to the control box 2, and the drive motor 18 is started through the control box 2, and then the drive shaft of the drive motor 18 drives the active synchronous pulley 17 to rotate, and then under the belt transmission action of the active synchronous pulley 17, the driven synchronous pulley 19 and the transmission synchronous belt 20, the 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, so that a negative pressure phenomenon is generated inside the safety passage body. 1 to discharge the smoke inside, thereby achieving the effect of driving multiple exhaust fan blades 14 to rotate and perform smoke exhaust operations. The angle adjustment component includes: a third fixing frame 54, the third fixing frame 54 is fixedly installed on one side of the safety passage body 1, the top surface of the third fixing frame 54 is fixedly installed with a third electric motor 55, the third electric motor 55 is electrically connected to the control box 2, the bottom surface of the drive shaft of the third electric motor 55 is fixedly installed with a driving pulley 56, the bottom surfaces of the two connecting frames 34 are fixedly installed with a driven pulley 59, a transmission belt 57 is provided between the driven pulley 59 and the driving pulley 56, the driving pulley 56 It is connected to the driven pulley 59 through a transmission belt 57. One side of the safety passage body 1 is rotatably connected to two positioning wheels 58. The inner wall of the positioning wheel 58 is movably connected to the transmission belt 57. The third electric motor 55 is started by the control box 2, and 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 action of the active pulley 56, the transmission belt 57 and the driven pulley 59, the two connecting frames 34 will drive the multiple air intake hoods 35 inside it to rotate, thereby achieving the effect of facilitating the adjustment of the use angles of the multiple air intake hoods 35 and improving their smoke exhaust efficiency.

[0048] Based on the above embodiment, refer to Figure 7 、 Figure 8 and Figure 10, The protective component includes: two positioning frames 15, both positioning frames 15 are fixedly mounted on the inner bottom surface of the first mounting cover 7, the inner rotatable connection of the positioning frame 15 is a first screw rod 21, the outer circumferential wall surface of the first screw rod 21 is fixedly sleeved with a driven bevel gear 22, the outer circumferential wall surface of the first screw rod 21 is threadedly connected with an adjusting seat 23, and both sides of the adjusting seat 23 are rotatably connected with a connecting rod 29, and the inner sides of the first mounting cover 7 are respectively fixedly mounted with a second fixing frame 24, and one side of the second fixing frame 24 is fixedly mounted with a first electric motor 25, the first electric motor 25 is electrically connected to the control box 2, one end of the driving shaft of the first electric motor 25 is fixedly mounted with an active bevel gear 26, and the active bevel gear 26 is meshed with the driven bevel gear 22, and a plurality of vertical rods 27 are fixedly mounted on the inner bottom surface of the first mounting cover 7, each two vertical rods 27 form a group, and the top surface of the vertical rod 27 is rotatably connected to a limited guide wheel 28, and the limited guide wheel 28 is slidably connected to the inner wall surface of the connecting rod 29, and the first mounting cover 7 The first and second mounting covers 8 are fixedly mounted with dustproof nets 11 on one side, and the first and second mounting covers 8 are rotatably connected to the first baffles 12 on one side. A plurality of connecting rods 29 are all passed through the dustproof nets 11 and are fixedly mounted on the first baffles 12. The two first electric motors 25 are started by the control box 2, and the rotation of the driving shaft of the first electric motor 25 drives the active bevel gear 26 to rotate. Then, under the gear meshing transmission action of the active bevel gear 26 and the driven bevel gear 22, the first screw rod 21 rotates. At this time, under the threaded transmission action of the adjusting seat 23 and the first screw rod 21, the adjusting seat 23 moves downward and drives the connecting rod 29 to move downward. Then, under the support and limiting action of the limiting guide wheel 28, the connecting rod 29 rotates and pushes the two first baffles 12 to open them, so as to protect the first and second mounting covers 7 and 8 when they are not in use, and prevent external dust and rain from entering the interior of the first and second mounting covers 7 and 8 and affecting subsequent use.

[0049] Based on the above embodiment, refer to Figure 3 、 Figure 4 and Figure 5A first protective cover 3 is fixedly installed on one side of the safety passage body 1. A plurality of air inlet holes 45 are opened on one side of the first protective cover 3. The positions of the plurality of air inlet holes 45 correspond to the positions of the plurality of air inlet covers 35. A plurality of second baffles 43 are rotatably connected to one side of the first protective cover 3. Two adjustment frames 44 are provided inside the first protective cover 3. The plurality of second baffles 43 are rotatably connected to the adjustment frames 44. A positioning plate 36 is fixedly installed on one side of the safety passage body 1. A second screw rod 50 is rotatably connected to the interior of the positioning plate 36. Two guide rods 51 are fixedly installed inside the positioning plate 36. The outer cylindrical wall surface of the second screw rod 50 is threadedly connected to a receiving rod 52. The receiving rod 52 is slidably connected to the guide rod 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 second electric motor 53 driving shaft is fixedly installed with the second screw rod 50, and the two ends of the receiving rod 52 are fixedly installed with the two adjusting frames 44 respectively. The second protective cover 4 is fixedly installed on one side of the safety passage body 1. The second electric motor 53 is started by the control box 2, and the rotation of the driving shaft of the second electric motor 53 will drive the second screw rod 50 to rotate, and then under the threaded transmission action of the receiving rod 52 and the second screw rod 50, the receiving rod 52 will drive the two adjusting frames 44 to move downward. At this time, since the adjusting frame 44 is limited by multiple second baffles 43, the adjusting frame 44 will rotate, and then rotating the adjusting frame 44 will drive multiple second baffles 43 to rotate to open it, so as to make it convenient to block the air inlet 45 when it is not in use, to prevent external dust or foreign matter from entering the interior of the first protective cover 3 and affecting use.

[0050] Based on the above embodiment, refer to Figure 2 、 Figure 7 、 Figure 9 and Figure 11A water tank 5 is fixedly installed on one side of the interior of the safety passage body 1, and a submersible pump 37 is fixedly installed on the bottom surface of the water tank 5. The submersible pump 37 is electrically connected to the control box 2. A diverter pipe 38 is fixedly sleeved on the outer circular wall of the water outlet of the submersible pump 37. A third mounting cover 39 is fixedly installed on one side of the water tank 5. Several water mist nozzles 40 are arranged inside the third mounting cover 39. The diverter pipe 38 passes through the third mounting cover 39. The water mist nozzle 40 is fixedly sleeved on the inner circular wall of the diverter pipe 38. An indicator light 42 is fixedly installed on the top surface of the water tank 5. The indicator light 42 is electrically connected to the control box 2. The water tank 5 is fixedly installed with a water level sensor 41, which is electrically connected to the control box 2. By adding water to the water tank 5, when the water level is too low, the water level sensor 41 will feed back a signal to the control box 2, and then the control box 2 will control the start indicator light 42 to light up red, so as to remind the maintenance personnel to add water to the water tank 5 in time. When a fire occurs, the smoke sensor 6 will be affected by the smoke and feed back a signal to the control box 2. At this time, the control box 2 controls the start of the submersible pump 37, and the submersible pump 37 will pump the water inside the water tank 5. The smoke is blown into the interior of the diversion pipe 38 and sprayed to the outside in the form of water mist through multiple water mist nozzles 40. After the dust inside the smoke contacts the water mist, the mist water droplets will adsorb the dust in the smoke and make it fall into the interior of the safety passage body 1, reducing the smoke accumulation inside the safety passage body 1. A plurality of limiting columns 47 are fixedly installed on the inner top surface of the first mounting cover 7, and each two limiting columns 47 form a group. Two mounting seats 46 are provided inside the first mounting cover 7. The mounting seats 46 are slidably connected to the limiting columns 47, and the outer circular wall surface of the limiting column 47 is movably sleeved with a spring Spring 48, the internal rotation of the mounting seat 46 is connected to a pressure wheel 49, the inner circular wall of the pressure wheel 49 is movably connected to the transmission timing belt 20, which is convenient for squeezing and limiting the transmission timing belt 20, so that the transmission timing belt 20 always maintains a certain tension to prevent it from falling off. A sealing groove is provided on one side of the first mounting cover 7, and a sealing gasket 10 is fixedly installed inside the sealing groove. An embedding frame 9 is fixedly installed on one side of the second mounting cover 8, and the embedding frame 9 is movably connected to the inner wall of the sealing groove to prevent air leakage between the first mounting cover 7 and the second mounting cover 8 from affecting the smoke exhaust effect.

[0051] Working principle: Please refer to Figures 1-11As shown, when in use, the staff adds water to the inside of the water tank 5, and then when the water level is too low, the water level sensor 41 will feed back a signal to the control box 2, and then the control box 2 will control the start indicator light 42 to light up red, so as to promptly remind the maintenance personnel to add water to the inside of the water tank 5. When a fire occurs, the smoke sensor 6 will be affected by the smoke and feed back a signal to the control box 2. At this time, the control box 2 controls the start drive motor 18, the first electric motor 25, the third electric motor 55, the second electric motor 53 and the submersible pump 37, and then the submersible pump 37 will draw the water inside the water tank 5 into the inside of the diversion pipe 38, and spray it to the outside in the form of water mist through multiple water mist nozzles 40, and then the smoke inside After the dust comes into contact with the water mist, the mist-like water droplets will absorb the dust in the smoke and make it fall into the inside of the safety passage body 1, reducing the smoke accumulation inside the safety passage body 1. At the same time, the rotation of the driving shaft of the first electric motor 25 will drive the active bevel gear 26 to rotate, and then the first screw rod 21 will rotate under the tooth meshing transmission action of the active bevel gear 26 and the driven bevel gear 22, and then under the threaded transmission action of the first screw rod 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, and the rotating connecting rod 29 will push the two first baffles 12 to rotate and open, and the driving shaft of the second electric motor 53 will rotate. The rotation of the driving shaft will drive the second screw rod 50 to rotate, and then under the threaded transmission action of the second screw rod 50 and the receiving rod 52, the receiving rod 52 will move downward. At this time, the receiving rod 52 moving downward will drive the two adjustment frames 44 to move, and make itself drive the multiple second baffles 43 to rotate, thereby opening the multiple second baffles 43. After the above steps are completed, the rotation of the driving shaft of the driving motor 18 will drive the active synchronous pulley 17 to rotate, and then under the belt transmission action of the active synchronous pulley 17, the driven synchronous pulley 19 and the transmission synchronous belt 20, the multiple exhaust fan blades 14 will rotate to generate negative pressure inside the first mounting cover 7, and then under the action of atmospheric pressure, the safety passage body 1 The internal smoke 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 interior of multiple air intake covers 35 through the two branch pipes 32. At this time, multiple air intake covers 35 will absorb and exhaust the smoke inside the safety passage body 1, and 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 action of the active pulley 56 / driven pulley 59 and the transmission belt 57, the two connecting frames 34 will drive the multiple air intake covers 35 to rotate, so that they can extract and exhaust the smoke inside the safety passage body 1 from different directions, thereby achieving the effect of improving the smoke exhaust efficiency.

[0052] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency smoke exhaust device for a safety passage, characterized in that: include: A safety passage body (1), wherein a mounting groove (30) is provided on one side of the safety passage body (1), a mounting hole (31) is provided on one side of the interior of the mounting groove (30), a first mounting cover (7) is fixedly installed inside the mounting hole (31), a plurality of exhaust fan blades (14) are provided 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 bottom surface of the interior of the safety passage body (1); Two branch connecting pipes (32) are fixedly installed inside the installation groove (30), and the branch connecting pipes (32) penetrate and extend into the interior of the second installation cover (8). One side of the safety passage body (1) is rotatably connected to two connecting frames (34), and a plurality of air intake covers (35) are fixedly installed inside the connecting frames (34). A telescopic pipe (33) is fixedly installed on one side of the air intake cover (35), and the telescopic pipe (33) penetrates and extends into the interior of the branch connecting pipe (32); A driving assembly is provided inside the first mounting cover (7) and is used to drive a plurality of exhaust fan blades (14) to rotate. The driving assembly includes: a mounting frame (13), the mounting frame (13) is fixedly mounted inside the first mounting cover (7), the plurality of exhaust fan blades (14) are rotatably connected to the mounting frame (13), a first fixing frame (16) is fixedly mounted on one side of the mounting frame (13), a driving motor (18) is fixedly mounted on one side of the first fixing frame (16), and an active synchronous pulley (17) is provided inside the first fixing frame (16). The driving synchronous pulley (17) is fixedly sleeved with the outer circumferential wall surface of the exhaust fan blade (14) rotating shaft, and two driven synchronous pulleys (19) are provided on one side of the mounting frame (13). The driven synchronous pulley (19) is fixedly sleeved with the outer circumferential wall surface of the exhaust fan blade (14) rotating shaft, and a transmission synchronous belt (20) is provided between the driven synchronous pulley (19) and the driving synchronous pulley (17). The driven synchronous pulley (19) and the driving synchronous pulley (17) are connected to each other through the transmission synchronous belt (20). The driving motor (18) is electrically connected to the control box (2); An angle adjustment component is provided on one side of the safety passage body (1) and is used to adjust the use angles of multiple air intake hoods (35). The angle adjustment component includes: a third fixing frame (54), the third fixing frame (54) 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 driving shaft of the third electric motor (55), a driven pulley (59) is fixedly installed on the bottom surfaces of the two connecting frames (34), a transmission belt (57) is provided between the driven pulley (59) and the driving pulley (56), the driving pulley (56) and the driven pulley (59) are connected by the transmission belt (57), one side of the safety passage body (1) is rotatably connected to two positioning wheels (58), and the inner circular wall surface of the positioning wheel (58) is movably connected to the transmission belt (57); A protective component is provided inside the first installation cover (7) and is used to protect the plurality of exhaust fan blades (14) when they are not in use, thereby preventing external dust or foreign matter from accumulating inside the first installation cover (7) and affecting use; A plurality of limiting columns (47) are fixedly mounted on the inner top surface of the first mounting cover (7), with each two limiting columns (47) forming a group. Two mounting seats (46) are provided inside the first mounting cover (7), the mounting seats (46) are slidably connected to the limiting columns (47), the outer circular wall surface of the limiting columns (47) is movably sleeved with a spring (48), the inner circular wall surface of the mounting seat (46) is rotatably connected to a pressure wheel (49), and the inner circular wall surface of the pressure wheel (49) is movably sleeved with the transmission synchronous belt (20).

2. The high-efficiency smoke exhaust device for a safety passage according to claim 1, characterized in that: The protection component comprises: two positioning frames (15), both positioning frames (15) are fixedly mounted on the inner bottom surface of the first mounting cover (7), the inner portion of the positioning frame (15) is rotatably connected to a first screw rod (21), the outer circumferential wall surface of the first screw rod (21) is fixedly sleeved with a driven bevel gear (22), the outer circumferential wall surface of the first screw rod (21) is threadedly connected to an adjustment seat (23), both sides of the adjustment seat (23) are rotatably connected to connecting rods (29), the inner sides of the first mounting cover (7) are respectively fixedly mounted with second fixing frames (24), one side of the second fixing frame (24) is fixedly mounted with a first electric motor (25), the first electric motor (25) is electrically connected to the control box (2), and the first electric motor (2 5) An active bevel gear (26) is fixedly mounted on one end of the driving shaft, and the active bevel gear (26) is meshedly connected with the driven bevel gear (22). A plurality of vertical rods (27) are fixedly mounted on the inner bottom surface of the first mounting cover (7), and each two vertical rods (27) form a group. The top surface of the vertical rod (27) is rotatably connected to a limiting guide wheel (28), and the limiting guide wheel (28) is slidably connected to the inner wall surface of the connecting rod (29). A dustproof net (11) is fixedly mounted on one side of the first mounting cover (7) and the second mounting cover (8), and a first baffle (12) is rotatably connected on one side of the first mounting cover (7) and the second mounting cover (8). A plurality of connecting rods (29) are all fixedly mounted on the dustproof net (11) and the first baffle (12).

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

4. The high-efficiency smoke exhaust device for a safety passage according to claim 1, characterized in that: A water tank (5) is fixedly installed on one side of the interior of the safety passage body (1), a submersible pump (37) is fixedly installed on the inner bottom surface of the water tank (5), the submersible pump (37) is electrically connected to the control box (2), a diversion pipe (38) is fixedly sleeved on the outer circular wall surface of the water outlet of the submersible pump (37), a third installation cover (39) is fixedly installed on one side of the water tank (5), a plurality of water mist nozzles (40) are arranged inside the third installation cover (39), the diversion pipe (38) passes through the third installation cover (39), the water mist nozzles (40) are fixedly sleeved on the inner circular wall surface of the diversion pipe (38), an indicator light (42) is fixedly installed on the top surface of the water tank (5), the indicator light (42) is electrically connected to the control box (2), a water level sensor (41) is fixedly installed inside the water tank (5), and the water level sensor (41) is electrically connected to the control box (2).

5. The high-efficiency smoke exhaust device for a safety passage according to claim 1, characterized in that: A sealing groove is provided on one side of the first mounting cover (7), a sealing gasket (10) is fixedly installed inside the sealing groove, and an embedding frame (9) is fixedly installed on one side of the second mounting cover (8), and the embedding frame (9) is movably sleeved with the inner wall surface of the sealing groove.

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