阅读说明：本技术 一种实现电气火灾提前预警的监控装置 (Monitoring device for realizing early warning of electrical fire ) 是由 沈鑫 鲍春江 郑伟林 于 2021-08-16 设计创作，主要内容包括：本发明公开了一种实现电气火灾提前预警的监控装置,包括预警总装件；所述预警总装件包括保护外壳、设于保护外壳下方的第一过滤部件、设于保护外壳内部的驱动部件、设于保护外壳内部错位分布的两个预警器、设于保护外壳内部的过滤组件、设于保护外壳外部用于驱动保护外壳的控制分装件；通过设置了过滤组件,对空气进行净化；设置了控制分装件和第一过滤部件生火灾时,可以使保护外壳向上运动,对保护外壳进行保护,之后对空气进行净化,之后从下方向上排出,提高烟雾最低位置的高度；本发明通过提前对烟雾进行检测,并对火灾做出预警,并降低火灾对人员的伤亡。(The invention discloses a monitoring device for realizing early warning of electrical fire, which comprises an early warning assembly part; the early warning assembly comprises a protective shell, a first filtering part arranged below the protective shell, a driving part arranged in the protective shell, two early warning devices arranged in the protective shell and distributed in a staggered manner, a filtering assembly arranged in the protective shell and a control sub-assembly part arranged outside the protective shell and used for driving the protective shell; the air is purified by arranging the filtering component; when the control sub-assembly and the first filtering component are arranged to cause a fire, the protective shell can move upwards to protect the protective shell, then air is purified and discharged from the lower direction, and the height of the lowest position of smoke is increased; the smoke is detected in advance, the fire disaster is early warned, and casualties of the fire disaster to people are reduced.)

1. A monitoring device for realizing early warning of electrical fire comprises a passing space (1) surrounded by walls, a plurality of ventilation openings arranged on the walls above the passing space (1), a warning assembly part (2) arranged in one ventilation opening, a first air pipe (3) connected with the ventilation openings and communicated with each other, and a third air pipe (31) connected with the first air pipe (3) and the warning assembly part (2), the device comprises a second air gathering cavity (43) connected with the early warning assembly (2), a second air pipe (4) connected with the second air gathering cavity (43), a plurality of electric pumps (41) fixedly arranged on the second air pipe (4), a first air gathering cavity (42) connected with the second air pipe (4) and a wall body below the passing space (1), and a vent (5) connected with the first air gathering cavity (42) and communicated with vents on the wall body below the passing spaces (1); the method is characterized in that: the early warning assembly (2) comprises two first rod pieces (27) fixedly arranged on a wall body above the passing space (1), a first guide plate (271) slidably arranged on the first rod pieces (27), a protective shell (21) fixedly arranged between the two first rod pieces (27) and positioned at a vent, a first filtering part (22) arranged below the protective shell (21), a driving part (23) arranged inside the protective shell (21), two early warning devices (24) arranged inside the protective shell (21) in a staggered mode, a filtering assembly (26) arranged inside the protective shell (21), and a control sub-assembly (25) arranged outside the protective shell (21) and used for driving the protective shell (21).

2. The monitoring device for realizing early warning of electrical fire according to claim 1, wherein: the driving component (23) comprises a first support (234) fixedly arranged in the protective shell (21), a motor (231) fixedly arranged below the first support (234), a first rotating shaft (232) fixedly connected to the output end of the motor (231) and rotatably connected to the first support (234), and a gear box (235) connected to the first rotating shaft (232) and fixedly arranged in the protective shell (21); the control sub-assembly part (25) comprises a lifting structure (251) connected with the gear box (235), a resetting structure (252) connected with the lifting structure (251), a second connecting rod (253) connected with the lifting structure (251), and a fifth fixing plate (2531) hinged to the second connecting rod (253) and fixedly arranged on a wall body above the passing space (1); the lifting structure (251) comprises a second rotating shaft (2511) fixedly connected to the output end of the gear box (235), a first gear (2512) fixedly connected to the second rotating shaft (2511), two third fixing plates (2516) fixedly arranged on the outer side of the protective shell (21), a second guide rod (2515) fixedly arranged between the two third fixing plates (2516), a second guide plate (2514) slidably arranged on the second guide rod (2515), a fourth fixing plate (2517) fixedly arranged on one of the second guide plates (2514), and a rack (2513) fixedly arranged below the second guide plate (2514) and meshed with the first gear (2512); the rack (2513) is provided with a fifth guide rod (25133) fixedly connected to the rack (2513), a tooth block (25132) arranged on the fifth guide rod (25133) in a sliding manner, a first limiting block (25131) fixedly arranged on the fifth guide rod (25133) and used for blocking the tooth block (25132), and a second spring (25134) arranged on the tooth block (25132) and the rack (2513) and used for resetting the tooth block (25132); the second connecting rod (253) is hinged to a fourth fixing plate (2517); the reset mechanism (252) abuts against the rack (2513); the return structure (252) subjects the rack (2513) to a force that moves in a direction toward the second link (253).

3. The monitoring device for realizing early warning of electrical fire according to claim 1, wherein: first filter part (22) are including fixed two first fixed plates (221) of locating the wall body below, fixed first guide bar (223) of locating between two first fixed plates (221), slide and locate two first filter (222) that are located both sides on first guide bar (223), fixed first baffle (224) of locating first fixed plate (221) below and being used for blocking first filter (222), fixed second fixed plate (226) of locating first filter (222) top, articulate in first connecting rod (225) of second fixed plate (226) and protecting sheathing (21), locate magnet (227) of first filter (222) top.

4. The monitoring device for realizing early warning of electrical fire according to claim 3, wherein: the filter assembly (26) comprises a second filter component (261) arranged in the protective shell (21), a third filter component (262) connected with the second filter component (261), a blocking block (263) fixedly arranged in the protective shell (21), a guide component (264) connected with the second filter component (261), and a ventilation opening (265) arranged on the protective shell (21) and used for communicating the protective shell (21) and the box; the second filtering component (261) comprises a third rotating shaft (2614) rotatably arranged on the protective shell (21) and a second filtering plate (2611) fixedly arranged on the third rotating shaft (2614).

5. The monitoring device for realizing early warning of electrical fire according to claim 4, wherein: the third filter component (262) comprises a third filter plate (2621) fixedly arranged in the protective shell (21) and a fourth guide rod (2622) slidably arranged on the third filter plate (2621); the second filtering component (261) further comprises a sixth fixing plate (2613) fixedly arranged above the second filtering plate (2611) and the fourth guide rod (2622), a third connecting rod (2612) hinged to the two sixth fixing plates (2613), a guide disc (2615) fixedly connected to the third rotating shaft (2614), a first rope (2616) wound on the guide disc (2615), a first fixing block (2617) fixedly connected to the first rope (2616), a second rope (2618) fixedly arranged on the first fixing block (2617) and fixedly arranged on a wall body, and a second bracket (2619) fixedly arranged on the protective shell (21) and used for supporting the third rotating shaft (2614); the guide component (264) comprises a second gear (2642) fixedly connected to the third rotating shaft (2614), a third gear (2643) meshed with the second gear (2642), a fourth rotating shaft (2644) fixedly connected to the third gear (2643) and rotatably connected to the third gear (2643), a driving belt (2646) connected to the fourth rotating shaft (2644), a fifth rotating shaft (2645) connected to the driving belt (2646) and rotatably connected to the protective shell (21), and a guide plate (2641) arranged in the protective shell (21) and below the second filter plate (2611) and fixedly connected to the fifth rotating shaft (2645); the blocking block (263) is provided with an arc-shaped bulge (2631).

6. The monitoring device for realizing early warning of electrical fire according to claim 2, wherein: the resetting structure (252) comprises a second rod piece (2521) fixedly arranged on the first air pipe (3) of the protective shell (21), a third guide plate (2522) fixedly arranged on the second rod piece (2521), a third guide rod (2523) fixedly arranged on the wall body, a fourth guide plate (2524) slidably arranged on the third guide rod (2523) and slidably connected to the second rod piece (2521), a connecting rod resetting assembly (2526) connected to the fourth guide plate (2524) and the second rod piece (2521), and an anti-aging resetting assembly (2527) connected to the third guide plate (2522) and the fourth guide plate (2524).

7. The monitoring device for realizing early warning of electrical fire according to claim 6, wherein: the connecting rod resetting assembly (2526) comprises a seventh fixing plate (25261) fixedly arranged on the second rod piece (2521), a fourth connecting rod (25262) hinged to the seventh fixing plate (25261), a sixth guide rod (25264) fixedly arranged above the fourth guide plate (2524), a fifth guide plate (25263) connected to the sixth guide rod (25264) in a sliding manner, a fourth connecting rod (25262) hinged to the seventh fixing plate (25261) and the sixth guide rod (25264), a third spring (25265) arranged between the fourth guide plate (2524) and the fifth guide plate (25263), and a second limiting block (25266) arranged above the sixth guide rod (25264) and used for blocking the fifth guide plate (25263).

8. The monitoring device for realizing early warning of electrical fire according to claim 6, wherein: the anti-aging reset assembly (2527) comprises an eighth fixed plate (25271) fixedly arranged on a fourth guide plate (2524), a first sliding plate (25272) slidably arranged on the eighth fixed plate (25271), a plurality of fifth connecting rods (25273) hinged to the first sliding plate (25272) and hinged to each other, a sixth rotating shaft (25274) rotatably arranged on the fifth connecting rod (25273) and positioned at the mutual hinged position of the plurality of fifth connecting rods (25273), a telescopic guide rod (25276) fixedly arranged between the eighth fixed plate (25271) and the third guide plate (2522), a second sliding plate (25275) hinged to the sixth rotating shaft (25274) and slidably connected to the telescopic guide rod (25276), a fourth spring (25277) arranged between the plurality of second sliding plates (25275), and a clamping component (25278) arranged between the two second sliding plates (25275).

9. The monitoring device for realizing early warning of electrical fire according to claim 8, wherein: the clamping component (25278) comprises a first fixing frame (252781) fixedly arranged on the third guide plate (2522), a first sliding groove (2527811) arranged in the first fixing frame (252781), a sliding block (2527832) slidably arranged in the first sliding groove (2527811), a sixth spring (2527833) arranged in the first sliding groove (2527811) and abutted to the sliding block (2527832), a sixth connecting rod (252783) hinged to the sixth spring (2527833), a ninth fixing plate (2527831) hinged to the sixth connecting rod (252783), a third sliding plate (252782) fixedly arranged below the ninth fixing plate (2527831), a connecting plate (2527821) fixedly connected to the third sliding plate (252782) and hinged to the sixth rotating shaft (25274), a second sliding groove (2527822) arranged on the third sliding plate (252782), a seventh guide rod (252785) slidably arranged in the second sliding groove (2527822) and fixedly arranged above the second sliding plate (25275), and a third limiting block (252784) fixedly arranged above the seventh guide rod (252785), A fifth spring (252786) arranged between the second sliding plate (25275) and the third limiting block (252784); two fifth springs (252786) are arranged in the second sliding groove (2527822) in a sliding manner; the seventh guide bar (252785) may be provided on any adjacent two of the second slide plates (25275).

Technical Field

The invention belongs to the technical field of fire prevention, and particularly relates to a monitoring device for realizing early warning of an electrical fire.

Background

The existing electric fire monitoring detector is provided with a field alarm function, thus when an alarm occurs, a monitoring room can be seen and controlled, when the field operation is needed, the time is saved, the existing electric fire monitoring detector only has the field acquisition and signal uploading function, and uploads the signal to implement remote monitoring, but the detection range is too small when the fire is detected, the detection speed is reduced, the fire cannot be pre-warned in advance, and after the fire occurs, the detector can only burn due to the fire, and the personnel can not be helped to escape.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the monitoring device which can quickly detect the fire in advance and respond to the fire to improve the escape rate and realize the early warning of the electrical fire.

In order to achieve the purpose, the invention adopts the following technical scheme: a monitoring device for realizing early warning of electrical fire comprises a passing space surrounded by walls, a plurality of ventilation openings arranged on the walls above the passing space, a warning assembly arranged in one ventilation opening, a first air pipe connected with the ventilation openings and communicated with each other, a third air pipe connected with the first air pipe and the warning assembly, a second air chamber connected with the warning assembly, a second air pipe connected with the second air chamber, a plurality of electric pumps fixedly arranged on the second air pipe, a first air chamber connected with the second air pipe and the walls below the passing space, and a second air chamber connected with the first air chamber and communicated with the ventilation openings on the walls below the passing space; the method is characterized in that: the early warning assembly comprises two first rod pieces fixedly arranged on a wall body above the passing space, a first guide plate arranged on the first rod pieces in a sliding manner, a protective shell fixedly arranged between the two first rod pieces and positioned at a vent, a first filtering part arranged below the protective shell, a driving part arranged inside the protective shell, two early warning devices arranged inside the protective shell and distributed in a staggered manner, a filtering assembly arranged inside the protective shell, and a control sub-assembly piece arranged outside the protective shell and used for driving the protective shell; when the device is used, the device is mainly installed on a wall body of a shopping mall, then the driving part inside the protective shell can continuously absorb air in the shopping mall and enter the protective shell, meanwhile, air in the shopping mall can be sucked into the first air pipe along the vent hole and then enter the protective shell along the third air pipe, then the air in the shopping mall can pass through the early warning device in the protective shell, when the air has no smoke, the air can enter the second air pipe along the second air cavity under the action of the electric pump, then the air reaches the first air gathering cavity along the second air pipe, then the air is introduced into the air gathering cavity along the first air gathering cavity, then the air is exhausted from the bottom through the vent hole on the bottom surface, the air in the protective shell can enter the second air gathering cavity after passing through the filter assembly, and then the air is exhausted from the bottom into the shopping mall after being purified by the filter assembly, then when the early warning device detects that smoke exists in the air in the protective shell, the driving part stops air suction, then the electric pump increases the air suction speed, so that the air suction effect on the protective shell is increased, then the sub-assembly part is controlled to drive the protective shell to move upwards, then the protective shell moves upwards to drive the first filtering part to move, so that the air entering the protective shell is firstly purified by the first filtering part, and then the air is discharged outwards from the bottom of a commercial place after the air purification effect is increased; air is sucked into the protective shell through a plurality of ventilation openings above a market, the diffusion speed of the surrounding air can be increased through suction, so that the air conveying speed into the protective shell is increased, the traditional smoke is floated upwards to the top and then diffused to the periphery of the top, the smoke is diffused into the detection device, the fire prevention mode is changed into auxiliary air diffusion, the smoke can be diffused to the top more quickly, early warning on the fire can be carried out more quickly, only one early warning assembly is arranged later, the air is gathered into one early warning assembly through the plurality of ventilation openings, the cost is saved while the early warning effect is improved, the air can be purified under normal conditions and is discharged from the bottom, and the air purity in the market is increased, reduce the dust in the air and the virus in the air, later when the conflagration breaing out, the early warning aggregate spare also can purify the air, thereby solid powder that produces the conflagration filters after it purifies it through filtering component, thereby air purification effect when having guaranteed the conflagration, air that later has purified upwards discharges in the bottom, can make the smog on market upper portion absorbed, there is the air of purifying upwards to discharge in the below of market, thereby can improve the lowest position of smog, make personnel can be in higher position still can not smoked by smog, thereby the on-the-spot circumstances of disappearing of conflagration has been reduced, make personnel's escape rate increase by a wide margin.

Furthermore, the driving part comprises a first bracket fixedly arranged in the protective shell, a motor fixedly arranged below the first bracket, a first rotating shaft fixedly connected to the output end of the motor and rotatably connected to the first bracket, and a gear box connected to the first rotating shaft and fixedly arranged in the protective shell; the control sub-assembly part comprises a lifting structure connected to the gear box, a reset structure connected to the lifting structure, a second connecting rod connected to the lifting structure, and a fifth fixing plate hinged to the second connecting rod and fixedly arranged on a wall body above the passing space; the lifting structure comprises a second rotating shaft fixedly connected to the output end of the gear box, a first gear fixedly connected to the second rotating shaft, two third fixing plates fixedly arranged on the outer side of the protective shell, a second guide rod fixedly arranged between the two third fixing plates, a second guide plate slidably arranged on the second guide rod, a fourth fixing plate fixedly arranged on one of the second guide plates, and a rack fixedly arranged below the second guide plates and meshed with the first gear; the rack is provided with a fifth guide rod fixedly connected with the rack, a tooth block arranged on the fifth guide rod in a sliding manner, a first limiting block fixedly arranged on the fifth guide rod and used for blocking the tooth block, and a second spring arranged on the tooth block and the rack and used for resetting the tooth block; the second connecting rod is hinged to the fourth fixing plate; the reset structure is abutted against the rack; the reset structure enables the rack to be subjected to a force moving towards the direction of the second connecting rod; when air is exhausted, the fan blade is driven to rotate under the action of the motor, so that air is sucked into the protective shell, then the first rotating shaft drives the first gear to move through the second rotating shaft, the first gear drives the rack to move, then the rack can drive the rack to move to the extreme end under the action of the gear block and the second spring, then the rack can slide, so that the first gear can rotate all the time without being separated from the rack, when the fire hazard is detected by the early warning device, the motor stops driving, then the first gear does not drive the rack to move any more, so that the rack can drive the rack to move towards the direction of the second connecting rod under the action of the resetting structure, so that the protective shell can move upwards under the action of the second connecting rod and the fifth fixing plate, and then the protective shell moves to the upper part of the first filtering part, then the first filter component moves; make protecting sheathing upwards move when taking place the conflagration, can make protecting sheathing be in safer position, can not burnt out easily, later first filtering component moves and keeps off in protecting sheathing's below, better protects protecting sheathing.

And further. The first filtering part comprises two first fixing plates fixedly arranged below the wall body, a first guide rod fixedly arranged between the two first fixing plates, two first filtering plates arranged on the two sides in a sliding mode and arranged on the first guide rod, a first baffle fixedly arranged below the first fixing plates and used for blocking the first filtering plates, a second fixing plate fixedly arranged above the first filtering plates, a first connecting rod hinged to the second fixing plates and the protective shell, and a magnet arranged above the first filtering plates; when the protective shell moves upwards, the first connecting rod is driven to move through the first connecting rod, then the first filter plates are connected to the first guide rod in a sliding mode, the first filter plates move towards the middle direction under the action of the first connecting rod in an opposite mode and then are in butt joint, and then the first filter plates are attracted mutually under the action of the magnets; the two first filter plates are better aligned together through the magnet and cannot be opened easily, and meanwhile, the two first filter plates can be always subjected to external force under the action of attraction force, gaps between the two first filter plates are reduced, then the first filter plates can filter solid particles generated by fire when the fire occurs, and the solid particles are prevented from entering into the protective shell, so that the smoke of the fire is filtered into ordinary air at ordinary times, then the ordinary air is purified through the second filter plates, then toxic gas in the air purified by the second filter plates is purified through the third filter plates, and thus the air is better purified, the first-step purification is carried out through the first filter plates, the original purification effect can be better ensured through the second filter plates and the third filter plates, and the second filter plates cannot be overloaded and purified due to the smoke of the fire, later avoid leading to purifying the condition of inefficacy to further improve the time of the effect of purification and purification, thereby more strive for the time of fleing for the personnel of fleing for, later first filter can block under the effect of first baffle at ordinary times, thereby can not be by air pollution when not taking place the conflagration, thereby the purifying effect of the smog in the assurance first filter to the conflagration that can be better, thereby further improved the purification to the air.

Furthermore, the filter assembly comprises a second filter component arranged in the protective shell, a third filter component connected with the second filter component, a blocking block fixedly arranged in the protective shell, a guide component connected with the second filter component, and a ventilation opening arranged on the protective shell and used for communicating the protective shell boxes with each other; the second filter part comprises a third rotating shaft and a second filter plate, wherein the third rotating shaft is rotatably arranged on the protective shell, and the second filter plate is fixedly arranged on the third rotating shaft; air among the protecting sheathing can pass through the top that the second filter reachs protecting sheathing, later in reacing the second trachea along ventilating the opening, purify the air through the second filter, when the fire hazard is given birth to the law, protecting sheathing upward movement, can make the third pivot rotate through the second filter part, thereby the second filter is rotatory, drive third filter part and guide part move, thereby carry out the water conservancy diversion to the air through guide part, the third filter part carries out second step purification to the air, thereby the purifying effect to the air has been improved, and increase the purification to the air when taking place the fire hazard, better strives for the time for the personnel of fleing for.

Furthermore, the third filter part comprises a third filter plate fixedly arranged in the protective shell and a fourth guide rod arranged on the third filter plate in a sliding manner; the second filtering part also comprises sixth fixing plates fixedly arranged above the second filtering plate and the fourth guide rod, a third connecting rod hinged to the two sixth fixing plates, a guide disc fixedly connected to a third rotating shaft, a first rope wound on the guide disc, a first fixing block fixedly connected to the first rope, a second rope fixed to the first fixing block and fixedly arranged on a wall body, and a second support fixedly arranged on the protective shell and used for supporting the third rotating shaft; the guide part comprises a second gear fixedly connected to the third rotating shaft, a third gear meshed with the second gear, a fourth rotating shaft fixedly connected to the third gear and rotatably connected to the third gear, a transmission belt connected to the fourth rotating shaft, a fifth rotating shaft connected to the transmission belt and rotatably connected to the protective shell, and a guide plate arranged inside the protective shell and below the second filter plate and fixedly connected to the fifth rotating shaft; the blocking block is provided with an arc-shaped bulge; the arc-shaped bulge is made of soft materials and cannot conflict with the movement of the second filter plate; when a fire disaster happens, the protective shell moves upwards to drive the third rotating shaft to move through the first rope and the guide disc, so that the third rotating shaft moves to the arc-shaped bulge, the second filter plate is obliquely positioned in the protective shell, then the second filter plate drives the fourth guide rod to move upwards through the third connecting rod to block the ventilation opening, and then the third rotating shaft enables the rotating direction of the fifth rotating shaft to be opposite to that of the second filter plate through the second gear and the third gear, so that the guide plate rotates; the guide plate rotates to enable air entering the protective shell to flow backwards, then the air can be blown onto the blocking block better, then the air can pass through the blocking block better through the arrangement of the blocking block, then the solid in the air can be blocked under the action of the blocking block, the amount of small solid particles reaching the second filter plate is reduced, so that the second filter plate can be purified better, the influence of the solid particles is reduced, then the inclined position of the second filter plate can be better matched with the blocking block to enable the air to pass through the second filter plate faster, and then the air reaches the fourth guide rod, the fourth guide rod purifies toxic gas in the air, so that only the second filter plate purifies when no fire occurs, then the first filter plate and the fourth guide rod can purify the air when the fire occurs, so that the air is purified better, first filter and fourth guide bar can not come into operation later when not having the conflagration breaing out to can be better purify smog and toxic gas when the face conflagration, thereby the better concentration that reduces smog concentration and harmful gas, thereby the better handles the conflagration.

Furthermore, the reset structure comprises a second rod piece fixedly arranged on the first air pipe of the protective shell, a third guide plate fixedly arranged on the second rod piece, a third guide rod fixedly arranged on the wall body, a fourth guide plate slidably arranged on the third guide rod and slidably connected to the second rod piece, a connecting rod reset assembly connected to the fourth guide plate and the second rod piece, and an anti-aging reset assembly connected to the third guide plate and the fourth guide plate; first gear stops the drive to the rack when the conflagration breaing out, can make the rack receive the power from first spring, thereby drive the rack through the second member and move, thereby make second connecting rod and fifth fixed plate drive protecting sheathing upwards move, later connecting rod reset assembly and anti-aging reset assembly are used for preventing the rack motion stroke reduction that the first spring is ageing to be led to, lead to the unable original position of moving of protecting sheathing, thereby unable protecting sheathing normally faces the conflagration, probably lead to first filter can't block protecting sheathing, thereby lead to protecting sheathing to damage, thereby avoid the better prevention and purify the air to the conflagration of these circumstances.

Furthermore, the connecting rod resetting assembly comprises a seventh fixing plate fixedly arranged on the second rod piece, a fourth connecting rod hinged to the seventh fixing plate, a sixth guide rod fixedly arranged above the fourth guide plate, a fifth guide plate slidably connected to the sixth guide rod, a fourth connecting rod hinged to the seventh fixing plate and the sixth guide rod, a third spring arranged between the fourth guide plate and the fifth guide plate, and a second limiting block arranged above the sixth guide rod and used for blocking the fifth guide plate; when the first gear drives the rack to move, the third spring is in a state of being compressed by the fifth guide plate, then when the first gear does not drive the rack any more, the second rod loses force, then the third spring drives the fifth guide plate to slide on the sixth guide rod, the upward movement of the fifth guide plate can drive the fourth connecting rod to move, the fourth connecting rod drives the seventh fixing plate to move, the seventh fixing plate drives the rack to move towards the direction of the second connecting rod through the second rod, thereby preventing the first spring from aging to cause the elastic force to reduce the stroke of the rack movement, thereby better ensuring that the force for resetting the rack cannot be reduced due to aging, thereby better driving the rack movement, better upwards lifting the protective shell, and ensuring the stable movement of equipment.

Furthermore, the anti-aging reset assembly comprises an eighth fixed plate fixedly arranged on the fourth guide plate, a first sliding plate slidably arranged on the eighth fixed plate, a plurality of fifth connecting rods hinged to the first sliding plate and mutually hinged, a sixth rotating shaft rotatably arranged on the fifth connecting rods and positioned at the mutual hinged positions of the fifth connecting rods, a telescopic guide rod fixedly arranged between the eighth fixed plate and the third guide plate, a second sliding plate hinged to the sixth rotating shaft and slidably connected to the telescopic guide rod, a fourth spring arranged between the second sliding plates and a clamping part arranged between the two second sliding plates; the fourth springs among the second sliding plates can enable the second sliding plates to be subjected to force moving towards two sides, when the first gear drives the rack to move, the second sliding plates are in a compressed state, then when the first gear does not act as the rack any more, the third sliding plates do not compress any more, so that the second sliding plates can be expanded mutually under the action of the fourth springs, under the action of mutual hinging of the fifth connecting rod, the second sliding plates move away from each other, but the distance between every two second sliding plates is equal, then the second sliding plates can be expanded mutually through the support provided by the fourth sliding plates so as to push the third sliding plates, namely the rack is pushed to move through the second rod piece, and the rack can be better driven to move upwards by enough thrust, so that the stability of the movement is better improved, thereby better assurance protecting sheathing's safety can be better assurance to smoke purification's effect, later as long as have a fourth spring can reset to original length and will drive the sufficient length of a plurality of second sliding plates motion, thereby as long as have a fourth spring not take place ageing under the easy condition that takes place ageing of spring, just can guarantee the steady motion of equipment, thereby can be better when facing the conflagration make equipment move, take place the dead phenomenon of card and reduce equipment motion, thereby can not the accident appear when the conflagration comes, thereby better operation through guaranteeing equipment makes its can be better facing the conflagration.

Furthermore, the clamping part comprises a first fixed frame fixedly arranged on the third guide plate, a first sliding chute arranged in the first fixed frame, a sliding block arranged in the first sliding chute in a sliding manner, a sixth spring arranged in the first sliding chute and abutted against the sliding block, a sixth connecting rod hinged to the sixth spring, a ninth fixed plate hinged to the sixth connecting rod, a third sliding plate fixedly arranged below the ninth fixed plate, a connecting plate fixedly connected to the third sliding plate and hinged to the sixth rotating shaft, a second sliding chute arranged on the third sliding plate, a seventh guide rod arranged in the second sliding chute in a sliding manner and fixedly arranged above the second sliding plate, a third limiting block fixedly arranged above the seventh guide rod, and a fifth spring arranged between the second sliding plate and the third limiting block; the number of the fifth springs which are arranged in the second sliding groove in a sliding mode is two; the seventh guide bar can be arranged on any two adjacent second sliding plates; because two adjacent second sliding plates can move away from each other, the second sliding plates can slide in the second sliding grooves and cannot be clamped, then each fifth spring is provided with a third limiting block, so that the third sliding plates can be applied to the third sliding plates under the action of the fifth springs, the third sliding plates are stressed by downward movement, then the connecting plates are hinged to sixth rotating shafts on the third second sliding plates, the third sliding plates can be driven to move along with the unfolding of the second sliding plates, then the first fixing frame is fixed, the sixth springs abut against the sliding blocks, the sliding blocks cannot move, then the third sliding plates can be driven by the movement of the third sliding plates to move downwards under the action of the sixth connecting rods, then the arc-shaped clamping blocks below the third sliding plates can be plugged between the two second sliding plates, and therefore the second sliding plates can be better unfolded, all ageing as the fourth spring, can force the sufficient distance of second sliding plate motion through the arc screens piece of third sliding plate below when unable messenger's second sliding plate motion enough distance to the expansion of better assurance second sliding plate normal length, thereby better messenger's protecting sheathing can the upward movement, thereby make its can be more stable face the conflagration, better assurance to the purification of conflagration smog, better assurance personnel's the flee.

In conclusion, the air purifier is provided with the filtering component to purify air, so that the air quality in a market is better, and the content of virus and bacteria is reduced; when the control sub-assembly piece and the first filtering component are arranged to cause a fire disaster, the protective shell can move upwards to protect the protective shell, so that the protective shell cannot be damaged, then the first filtering component is used for first-step purification of smoke, and then the structure in the protective shell is used for purifying air again, so that the smoke is better purified into breathable air, and then the breathable air is discharged from the lower direction, the height of the lowest position of the smoke is improved, so that enough air can be provided for people to escape, and the smoke cannot be smoked, and the escape probability is greatly increased; the air suction device is provided with the driving part, air is sucked, the air can be gathered to the protective shell more through suction, and a fire disaster can be found in advance and early warning can be timely carried out on the air suction device.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a second air tube according to the present invention;

FIG. 3 is an enlarged view of A of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of B of FIG. 3 according to the present invention;

FIG. 5 is a schematic view of a control subassembly of the present invention;

FIG. 6 is an enlarged view of C of FIG. 5 in accordance with the present invention;

FIG. 7 is a schematic structural view of a fourth guide plate according to the present invention;

FIG. 8 is a schematic view of a detent member according to the present invention;

FIG. 9 is an enlarged view of E of FIG. 8 in accordance with the present invention;

FIG. 10 is a schematic view of the construction of the rack of the present invention;

FIG. 11 is a schematic structural view of a tooth block according to the present invention;

fig. 12 is a schematic view showing the structure of a third sliding plate according to the present invention;

FIG. 13 is a schematic cross-sectional view of F-F according to the present invention;

FIG. 14 is a schematic sectional view of F to F in the present invention;

FIG. 15 is an enlarged view of D of FIG. 14 in accordance with the invention;

FIG. 16 is a schematic view of a control subassembly of the present invention;

FIG. 17 is a schematic view of a first filter element according to the present invention;

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1-17, a monitoring device for realizing early warning of an electrical fire includes a passing space 1 surrounded by walls, a plurality of vents provided on the walls above the passing space 1, a warning assembly 2 provided in one vent, a first air tube 3 connected to the vents and communicated with each other, a third air tube 31 connected to the first air tube 3 and the warning assembly 2, a second air chamber 43 connected to the warning assembly 2, a second air tube 4 connected to the second air chamber 43, a plurality of electric pumps 41 fixedly provided on the second air tube 4, a first air chamber 42 connected to the second air tube 4 and the walls below the passing space 1, and a vent 5 connected to the first air chamber 42 and communicated with the vents on the walls below the passing space 1; the method is characterized in that: the early warning assembly 2 comprises two first rod pieces 27 fixedly arranged on a wall body above the passing space 1, a first guide plate 271 slidably arranged on the first rod pieces 27, a protective shell 21 fixedly arranged between the two first rod pieces 27 and positioned at a vent, a first filtering part 22 arranged below the protective shell 21, a driving part 23 arranged inside the protective shell 21, two early warning devices 24 arranged inside the protective shell 21 and distributed in a staggered manner, a filtering assembly 26 arranged inside the protective shell 21, and a control sub-assembly 25 arranged outside the protective shell 21 and used for driving the protective shell 21; when the device is used, the device is mainly installed on the wall of a shopping mall, then the driving component 23 inside the protective casing 21 continuously absorbs air in the shopping mall into the protective casing 21, and simultaneously sucks air in the shopping mall into the first air pipe 3 along the ventilation opening, and then enters into the protective casing 21 along the third air pipe 31, then the air in the shopping mall passes through the early warning device 24 in the protective casing 21, when the air has no smoke, the air enters into the second air pipe 4 along the second air chamber 43 under the action of the electric pump 41, then reaches the first air chamber 42 along the second air pipe 4, then enters into the inlet 5 along the first air chamber 42, then the air is discharged from the bottom through the ventilation opening on the bottom surface by 5 times, the air in the protective casing 21 enters into the second air chamber 43 after passing through the filtering component 26, therefore, the air is firstly purified by the filter assembly 26 and then discharged from the bottom into the market, then when the early warning device 24 detects that the air in the protective casing 21 has smoke, the driving part 23 stops air suction, then the electric pump 41 increases the air suction speed, so that the air suction effect on the protective casing 21 is increased, then the sub-assembly 25 is controlled to drive the protective casing 21 to move upwards, then the protective casing 21 moves upwards to drive the first filter part 22 to move, so that the air entering the protective casing 21 is firstly purified by the first filter part 22, and then the air is discharged from the bottom of the market after the air purification effect is increased; air is sucked into the protective shell 21 through a plurality of ventilation openings above a market, the diffusion speed of the surrounding air can be increased through suction, so that the speed of conveying the air into the protective shell 21 is increased, the traditional smoke floats upwards to the top and diffuses around the top, the smoke diffuses into the detection device, the prevention mode of fire is changed into auxiliary air diffusion, the smoke can diffuse to the top more quickly, early warning on the fire can be carried out more quickly, only one early warning assembly part 2 is arranged, the air is gathered into one early warning assembly part 2 through the plurality of ventilation openings, the cost is saved while the early warning effect is improved, the air can be purified under the normal condition and is discharged from the bottom, and the purity of the air in the market is increased, reduce the dust in the air and the virus in the air, later when the conflagration breaing out, early warning assembly spare 2 also can purify the air, thereby filter the solid powder that the conflagration produced and purify it through filtering component 26 after, thereby air purification effect when having guaranteed the conflagration, the air that later purifies upwards discharges in the bottom, can make the smog on market upper portion absorbed, there is the air of purifying upwards to discharge in the below of market, thereby can improve the lowest position of smog, make personnel can be in higher position still can not fumigated by smog, thereby reduced the bad circumstances on scene of fire, make personnel's escape rate increase by a wide margin.

Specifically, the driving component 23 includes a first bracket 234 fixedly disposed inside the protective casing 21, a motor 231 fixedly disposed below the first bracket 234, a first rotating shaft 232 fixedly connected to an output end of the motor 231 and rotatably connected to the first bracket 234, and a gear box 235 connected to the first rotating shaft 232 and fixedly disposed inside the protective casing 21; the control sub-assembly 25 comprises a lifting structure 251 connected to the gear box 235, a reset structure 252 connected to the lifting structure 251, a second connecting rod 253 connected to the lifting structure 251, and a fifth fixing plate 2531 hinged to the second connecting rod 253 and fixedly arranged on a wall body above the passing space 1; the lifting structure 251 comprises a second rotating shaft 2511 fixedly connected to the output end of the gear box 235, a first gear 2512 fixedly connected to the second rotating shaft 2511, two third fixing plates 2516 fixedly arranged on the outer side of the protective shell 21, a second guide rod 2515 fixedly arranged between the two third fixing plates 2516, a second guide plate 2514 slidably arranged on the second guide rod 2515, a fourth fixing plate 2517 fixedly arranged on one of the second guide plates 2514, and a rack 2513 fixedly arranged below the second guide plate 2514 and meshed with the first gear 2512; the rack 2513 is provided with a fifth guide rod 25133 fixedly connected to the rack 2513, a tooth block 25132 slidably arranged on the fifth guide rod 25133, a first limit block 25131 fixedly arranged on the fifth guide rod 25133 and used for blocking the tooth block 25132, and a second spring 25134 arranged on the tooth block 25132 and the rack 2513 and used for resetting the tooth block 25132; the second link 253 is hinged to a fourth fixing plate 2517; the reduction structure 252 bears against the gear rack 2513; the reducing structure 252 subjects the rack 2513 to a force that moves in a direction toward the second link 253; when air is extracted, the fan blade 233 is driven to rotate by the motor 231, so that air is sucked into the protective casing 21, then the first rotating shaft 232 drives the first gear 2512 to move through the second rotating shaft 2511, the first gear 2512 drives the rack 2513 to move, then the rack 2513 can drive the rack 2513 to move under the action of the gear block 25132 and the second spring 25134, then the rack 2513 slides, so that the first gear 2512 can rotate all the time while the first gear 2512 does not separate from the rack 2513, when the fire is detected by the early warning device 24, the motor 231 stops driving, then the rack 2513 is not driven by the first gear 2512 any more, so that the rack 2513 is driven by the reset structure 252 to move towards the second connecting rod 253, so that the protective casing 21 can move upwards under the action of the second connecting rod 253 and the fifth fixing plate 2531, the protective casing 21 is then moved over the first filter element 22, after which the first filter element 22 is moved.

Specifically, the method comprises the following steps. The first filter part 22 comprises two first fixing plates 221 fixedly arranged below the wall body, a first guide rod 223 fixedly arranged between the two first fixing plates 221, two first filter plates 222 arranged on the two sides and slidably arranged on the first guide rod 223, a first baffle 224 fixedly arranged below the first fixing plates 221 and used for blocking the first filter plates 222, a second fixing plate 226 fixedly arranged above the first filter plates 222, a first connecting rod 225 hinged to the second fixing plate 226 and the protective shell 21, and a magnet 227 arranged above the first filter plates 222; when the protective housing 21 moves upward, the first connecting rod 225 is driven by the first connecting rod 225 to move, and then the first filter plates 222 are moved toward each other in a middle direction by the first connecting rod 225 and then butted together because the first filter plates 222 are slidably connected to the first guide bar 223, and then the first filter plates 222 are subjected to a force of attracting each other by the magnets 227.

Specifically, the filter assembly 26 includes a second filter element 261 disposed inside the protective casing 21, a third filter element 262 connected to the second filter element 261, a blocking block 263 fixedly disposed inside the protective casing 21, a guide element 264 connected to the second filter element 261, and a vent opening 265 disposed on the protective casing 21 for communicating the cassettes of the protective casing 21 with each other; the second filter member 261 includes a third shaft 2614 rotatably disposed on the protective housing 21, and a second filter plate 2611 fixedly disposed on the third shaft 2614.

Specifically, the third filter assembly 262 includes a third filter plate 2621 fixed in the protective housing 21, and a fourth guide rod 2622 slidably disposed on the third filter plate 2621; the second filtering member 261 further includes a sixth fixing plate 2613 fixedly disposed above the second filtering plate 2611 and the fourth guide rod 2622, a third connecting rod 2612 hinged to the two sixth fixing plates 2613, a guide disc 2615 fixedly connected to the third rotating shaft 2614, a first rope 2616 wound on the guide disc 2615, a first fixing block 2617 fixedly connected to the first rope 2616, a second rope 2618 fixed to the first fixing block 2617 and fixedly disposed on the wall, and a second bracket 2619 fixedly disposed on the protective housing 21 and used for supporting the third rotating shaft 2614; the guide member 264 includes a second gear 2642 fixedly connected to the third rotating shaft 2614, a third gear 2643 engaged with the second gear 2642, a fourth rotating shaft 2644 fixedly connected to the third gear 2643 and rotatably connected to the third gear 2643, a driving belt 2646 connected to the fourth rotating shaft 2644, a fifth rotating shaft 2645 connected to the driving belt 2646 and rotatably connected to the protective housing 21, and a baffle 2641 disposed inside the protective housing 21 and below the second filter plate 2611 and fixedly connected to the fifth rotating shaft 2645; an arc-shaped bulge 2631 is arranged on the blocking block 263; the arc-shaped protrusions 2631 are of a soft material so as not to collide with the movement of the second filter plate 2611; in case of fire, the upward movement of the protective housing 21 drives the third shaft 2614 to move through the first rope 2616 and the guide disc 2615, so as to move the third shaft 2614 to the arc-shaped protrusion 2631, so that the second filter plate 2611 is obliquely positioned inside the protective housing 21, then the second filter plate 2611 drives the fourth guide rod 2622 to move upward through the third connecting rod 2612 to block the ventilation opening 265, and then the third shaft 2614 makes the rotation direction of the fifth shaft 2645 opposite to that of the second filter plate 2611 through the second gear 2642 and the third gear 2643, so that the baffle 2641 rotates.

Specifically, the resetting structure 252 includes a second rod 2521 fixedly disposed on the first air tube 3 of the protective housing 21, a third guide plate 2522 fixedly disposed on the second rod 2521, a third guide rod 2523 fixedly disposed on the wall body, a fourth guide plate 2524 slidably disposed on the third guide rod 2523 and slidably connected to the second rod 2521, a link resetting assembly 2526 connected to the fourth guide plate 2524 and the second rod 2521, and an anti-aging resetting assembly 2527 connected to the third guide plate 2522 and the fourth guide plate 2524.

Specifically, the link resetting assembly 2526 includes a seventh fixing plate 25261 fixedly disposed on the second rod 2521, a fourth link 25262 hinged to the seventh fixing plate 25261, a sixth guide bar 25264 fixedly disposed above the fourth guide bar 2524, a fifth guide bar 25263 slidably coupled to the sixth guide bar 25264, a fourth link 25262 hinged to the seventh fixing plate 25261 and the sixth guide bar 25264, a third spring 25265 disposed between the fourth guide bar 2524 and the fifth guide bar 25263, and a second limiting block 25266 disposed above the sixth guide bar 25264 for blocking the fifth guide bar 25263.

Specifically, the anti-aging reset assembly 2527 includes an eighth fixing plate 25271 fixed to the fourth guide plate 2524, a first sliding plate 25272 slidably disposed on the eighth fixing plate 25271, a plurality of fifth connecting rods 25273 hinged to the first sliding plate 25272 and hinged to each other, a sixth rotating shaft 25274 rotatably disposed on the fifth connecting rod 25273 and located at a position where the plurality of fifth connecting rods 25273 are hinged to each other, a telescopic guide bar 25276 fixedly disposed between the eighth fixing plate 25271 and the third guide plate 2522, a second sliding plate 25275 hinged to the sixth rotating shaft 25274 and slidably connected to the telescopic guide bar 25276, a fourth spring 25277 disposed between the plurality of second sliding plates 25275, and a locking member 25278 disposed between the two second sliding plates 25275.

Specifically, the blocking component 25278 includes a first fixing frame 252781 fixedly disposed on the third guide plate 2522, a first sliding slot 2527811 disposed in the first fixing frame 252781, a sliding block 2527832 slidably disposed in the first sliding slot 2527811, a sixth spring 2527833 disposed in the first sliding slot 2527811 and abutting against the sliding block 2527832, a sixth connecting rod 252783 hinged to the sixth spring 2527833, a ninth fixing plate 2527831 hinged to the sixth connecting rod 252783, a third sliding plate 252782 fixedly disposed below the ninth fixing plate 2527831, a connecting plate 252782 fixedly connected to the third sliding plate 252782 and hinged to the sixth rotating shaft 252782, a second sliding slot 252782 disposed on the third sliding plate 252782, a seventh guide rod 252782 slidably disposed in the second sliding slot 252782 and fixedly disposed above the second sliding plate 252782, a third limiting block 252782 fixedly disposed above the seventh guide rod 252782, and a fifth spring 252782 disposed between the second sliding plate 252782 and the third limiting block 252782; two fifth springs 252786 are slidably arranged in the second slide groove 2527822; the seventh guide bar 252785 may be provided on any two adjacent second slide plates 25275; since two adjacent second sliding plates 25275 move away from each other, the second sliding plate 25275 slides in the second sliding groove 2527822 so as not to be locked, and then each fifth spring 252786 is provided with a third stop block 252784 so as to be applied to the third sliding plate 252782 by the action of the fifth spring 252786, so that the third sliding plate 252782 receives a downward force, and then the connecting plate 2527821 is hinged to the sixth rotating shaft 25274 of the third second sliding plate 25275 so as to drive the third sliding plate 252782 to move along with the expansion of the second sliding plate 25275, and then the first fixed frame 252781 is fixed, the sixth spring 2527833 abuts against the sliding block 2527832 so as not to move the sliding block 2527832, and then the third sliding plate 252782 moves to drive the third sliding plate 252782 to move downward by the action of the sixth link 252783, and then the arc-shaped locking block below the third sliding plate 252782 is inserted between the two second sliding plates 25275, and thus the second sliding plate 25275, is better unfolded, and when the fourth spring 25277 is completely aged and cannot move the second sliding plate 25275 a sufficient distance, the second sliding plate 25275 is forced to move a sufficient distance by the arc-shaped catching blocks under the third sliding plate 252782.

The specific working process of the invention is as follows: when the device is used, the device is mainly installed on a wall of a shopping mall, then a motor 231 inside the protective casing 21 drives a first rotating shaft 232 to rotate, the first rotating shaft 232 is supported by a first support 234 to rotate a fan blade 233 to be fixed, the fan blade 233 sucks air outside the protective casing 21 into the inside, the fan blade 233 drives a second rotating shaft 2511 to rotate through the first support 234, the second rotating shaft 2511 drives a first gear 2512 to rotate, the first gear 2512 and a rack 2513 are meshed to drive a rack 2513 to move so as to move towards the opposite direction of a second connecting rod 253, then a second guide plate 2514 is driven to move together, the second guide plate 2514 slides on a second guide rod 2515, then the second guide plate 2514 drives a fourth fixing plate 2517 to move, so that the protective casing 21 is located at the position in the figure through the second connecting rod 253, the operation work without fire is carried out, then the first gear 2512 drives the rack 2513 to move to the end, the gear block 25132 is driven to move, the gear block 25132 reciprocates under the action of the fifth guide rod 25133, so that the first gear 2512 and the rack 2513 are ensured to normally rotate under the condition that the first gear 2512 and the rack 2513 are not disengaged, namely, the pumping fan blade 233 is ensured to continuously pump air outside the protective shell 21 inwards, meanwhile, air in a market is also sucked into the first air pipe 3 along the ventilation opening, then, the air in the market enters the protective shell 21 along the third air pipe 31, then, the air in the market passes through the precaution device 24 in the protective shell 21, when the air has no smoke, the entered smoke is located below the precaution device 24, the smoke is better detected by the precaution device 24, and then enters the second air pipe 4 along the second condensation chamber 43 under the action of the electric pump 41, then reach the first air gathering cavity 42 along the second air pipe 4, then enter the inlet 5 along the first air gathering cavity 42, then 5 pass through the vent on the bottom surface to discharge the air from the bottom, the air in the protective casing 21 will enter the second air gathering cavity 43 after passing through the filter assembly 26, the air in the protective casing 21 reaches the top of the second filter plate 2611 after passing through the second filter plate 2611, then enter the second air gathering cavity 43 along the vertical ventilation opening 265, and enter the second air pipe 4 from the second air gathering cavity 43, thereby purifying the air;

then, when the early warning device 24 detects that there is smoke in the air in the protective housing 21, the motor 231 stops moving, the pumping fan blade 233 stops pumping air, then the pumping fan blade 233 stops rotating, so that the first gear 2512 does not rotate, the first gear 2512 does not drive the rack 2513 to move, at this time, the rack 2513 is no longer acted by force, then the first spring 2525 is expanded from a compressed state, so as to drive the third guide plate 2522 to move, the third guide plate 2522 drives the second rotating shaft 2511 to move, the second rotating shaft 2511 drives the rack 2513 to move, so that the rack 2513 moves toward the second connecting rod 253, so that the rack 2513 drives the second guide plate 2514 to move, the second guide plate 2514 drives the fourth fixing plate 2517 to move, the fourth fixing plate 2517 drives the second connecting rod 253 to move, and the second connecting rod 253 drives the protective housing 21 to move through the cooperation with the fifth fixing plate 2531, so that the protective casing 21 moves upwards under the action of the first guide plate 271 and the first rod 27, so that the protective casing 21 completely reaches above the first filter 22, then the protective casing 21 moves upwards to drive the second fixing plate 226 to move through the first connecting rod 225, the second fixing plate 226 drives the first filter plate 222 to slide on the first guide rod 223, so that the two first filter plates 222 slide towards the middle, and then are butted together, so that the two first filter plates 222 block the lower side of the protective casing 21, so that the air of a fire is further purified by the first filter plates 222, then the protective casing 21 moves upwards to drive the second bracket 2619 to move upwards, then the second bracket 2619 drives the third rotating shaft 2614 to move, the third rotating shaft 2614 drives the guide plate 2615 to move upwards, and then the first rope 2616 on the guide plate 2615 drives the guide plate 2615 to rotate under the action of the first fixing block 2617 and the second rope 2618, then the guiding plate 2615 drives the third shaft 2614 to rotate, the third shaft 2614 drives the third gear 2643 to rotate through the guiding plate 2615, then the third gear 2643 drives the fourth shaft 2644 to rotate, the fourth shaft 2644 drives the fifth shaft 2645 to rotate through the transmission belt 2646, the rotating direction of the fifth shaft 2645 is opposite to that of the third shaft 2614, then the third shaft 2614 drives the second filter plate 2611 to rotate clockwise, the second filter plate 2611 rotates while wiping the arc-shaped protrusion 2631, after rotating a certain angle, the second filter plate 2611 is obliquely positioned between the third shaft 2614 and the stopping block 263, then the second filter plate 2611 rotates and drives the sixth fixing plate 2613 through the third connecting rod 2612, the sixth fixing plate 2613 drives the third filter plate 2621 to move upwards on the fourth guiding rod 2622, so that the third filter plate 2621 stops the ventilation opening 265, and then the fifth shaft 2645 drives the flow guiding plate 2641 to rotate anticlockwise, therefore, the air in the protective casing 21 is directly blown onto the blocking block 263 under the guidance of the guide plate 2641, then enters the position of the second filter plate 2611 along the inclined surface of the blocking block 263, passes through the second filter plate 2611 and then passes through the third filter plate 2621 to perform the second-step purification and the third-step purification on the air, then the electric pump 41 increases the air suction speed, so that the air suction effect on the protective casing 21 is increased, then the protective casing 21 moves upwards to drive the first filter part 22 to move, so that the air entering the protective casing 21 is firstly purified by the first filter part 22, and then the air is discharged outwards from the bottom of a commercial farm after the air purification effect is increased;

when the first spring 2525 drives the third guide plate 2522 to move, the second rod 2521 also moves, the second rod 2521 drives the seventh fixed plate 25261 to move, the seventh fixed plate 25261 drives the fourth link 25262 to move, the fourth link 25262 drives the fifth guide plate 25263 to move upward on the sixth guide rod 25264, and then the third spring 25265 expands to apply an upward force to the fifth guide plate 25263, i.e., the third spring 25265 applies an upward force to the restoring structure 252 to drive the seventh fixed plate 25261 to move, so that the seventh fixed plate 25261 pushes the second rod 2521 to move, thereby increasing the stroke accuracy of the movement of the second rod 2521, and then the third guide plate 2522 moves while driving the first sliding plate 25272 to move, the first sliding plate 25272 drives the fifth links 25273 to move, and then the distance between the sixth rotating shafts 25274 increases, meanwhile, the second sliding plate 25275 is also under the action of the fourth spring 25277 to slide the second sliding plate 25275 on the telescopic guide rod 25276, so that the fifth link 25273 is vibrated by the hinge of the plurality of fifth links 25273, that is, the distance between each second sliding plate 25275 is equal, that is, after the rack 2513 loses the force of the first gear 2512, the unfolding of the fifth link 25273 will act on the third guide plate 2522 to make the third guide plate 2522 drive the second rod 2521 to move, that is, the rack 2513 drives the second link 253 to move, which increases the stability of the movement of the second link 253, and then the third guide plate 2522 will drive the first fixed frame 252781 to move, the third sliding plate 252782 will move together with the first fixed frame 252781 under the hinge of the connecting plate 2527821 and the sixth rotating shaft 25274, there is a movement difference between the first sliding plate and the second sliding plate 3556, and then the seventh guide rod 252785 will slide in the second sliding slot 2527822, for smooth operation of the apparatus, the third sliding plate 252782 may then move relative to the first fixed frame 252781, and then the sixth link 252783 may drive the third sliding plate 252782 to move downward, so that the arc-shaped position-locking block under the third sliding plate 252782 may be inserted between the two second sliding plates 25275, and then the second sliding plate 25275 may be forced to move in two sides, so that when the fourth spring 25277 is aged, the two second sliding plates 25275 may not be restored to the original position, at this time, the arc-shaped position-locking block under the third sliding plate 252782 may force the two second sliding plates 25275 to move as specified, so that the rack 2513 may move better, so as to better drive the protection housing 21 to move upward above the first filter component 22, when the first gear 2512 drives the rack 2513 to move, so as to shorten the distance between the plurality of second sliding plates 25275, the third sliding plate 252782 may move upward under the sixth link 252783, meanwhile, the plurality of second sliding plates 25275 are shortened to press the third sliding plate 252782 to move upwards, and then the sixth link 252783 slides in the first sliding groove 2527811 through the sliding block 2527832 and is pressed against the sliding block 2527832 by the sixth spring 2527833, so that the sixth link can slide in the first sliding groove 2527811 when being crushed, and the movement is stabilized.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.