Air purification device for elevator

Abstract

The present invention discloses an air purification device for an elevator, comprising an elevator car, a strip-shaped air suction hood fixedly connected to the elevator car, a metal filter fixedly connected inside the air suction hood, a first pipe fixedly connected to one end of the air suction hood, and a filter box fixedly connected to one end of the first pipe away from the air suction hood. Except for the ultraviolet lamp that needs additional power supply, the other parts of the present invention can be operated spontaneously during the ascent of the elevator, so that energy can be significantly saved, and the ultraviolet lamp does not need to be turned off manually or with the help of a controller, which is more convenient to use. Moreover, because the air purification work is only performed during the ascent of the elevator, the filter component of the present invention has a longer service life and is more energy-saving compared with the existing air purification device.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification devices, and in particular to an air purification device for elevators. Background Art

[0002] An elevator is a permanent transportation device that serves several specific floors in a building and whose car runs on at least two rigid tracks that are perpendicular to the horizontal plane or inclined at an angle of less than 15° to the plumb line. Since elevators can make people go up and down stairs very labor-saving and convenient, they have become a necessary facility in high-rise buildings. Because there are a lot of people coming and going in elevators, in order to reduce the risk of influenza and other similar infectious diseases spreading through the air in the elevator car, the elevator needs to be equipped with an air purification device.

[0003] Existing air purification devices for elevators, in addition to being able to filter dust in the air, remove odors in the air, and absorb moisture in the air, are generally also provided with ultraviolet lamps for disinfecting and sterilizing the air. When in use, they require external power supply and usually work continuously for a long time. However, since most germs are brought into the elevator by outsiders, when purifying the air in the elevator car, it is only necessary to disinfect and sterilize during the ascent process. There is no need for disinfection and sterilization during the descent process of people going downstairs. Therefore, the use of existing air purification devices for elevators is not energy-saving. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, such as: the existing air purification device for elevators, in addition to being able to filter dust in the air, remove odors in the air, and absorb moisture in the air, is generally also provided with an ultraviolet lamp for disinfecting and sterilizing the air. When in use, it requires external power supply and usually works continuously for a long time. However, since most of the germs are brought into the elevator by outsiders, when purifying the air in the elevator car, it is only necessary to purify the air during the ascending process. There is no need for air purification during the descending process of the elevator for people going downstairs. Therefore, the existing air purification device for elevators is not energy-saving.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An air purification device for an elevator comprises an elevator car, wherein an air suction hood arranged in a long strip shape is fixedly connected to the elevator car, a metal filter is fixedly connected inside the air suction hood, a first pipe is fixedly connected to one end of the air suction hood, a filter box is fixedly connected to one end of the first pipe away from the air suction hood, the filter box is fixedly connected to the outer wall of the elevator car, a second pipe is fixedly connected to one end of the filter box away from the first pipe, a filtering and purification component is arranged in the filter box, an ultraviolet disinfection and sterilization box is fixedly connected to one end of the second pipe away from the filter box, a plurality of ultraviolet lamps are symmetrically arranged on the inner side wall of the ultraviolet disinfection and sterilization box, a third pipe is fixedly connected to one end of the ultraviolet disinfection and sterilization box away from the second pipe, and the filter box is fixedly connected to the outer wall of the elevator car, a second pipe is fixedly connected to one end of the second pipe, and a filtering and purification component is arranged in the filter box, A negative pressure exhaust box is fixedly connected to one end of the third pipeline away from the ultraviolet disinfection and sterilization box, a fourth pipeline is fixedly connected to one end of the negative pressure exhaust box away from the third pipeline, a rotating shaft is rotatably connected in one side wall of the negative pressure exhaust box, a fan blade is fixedly connected to one end of the rotating shaft extending into the negative pressure exhaust box, a one-way bearing is fixedly connected to the rotating shaft, a driving roller is fixedly connected to the one-way bearing, an insulating protective shell is rotatably connected to the rotating shaft, the insulating protective shell is arranged away from the negative pressure exhaust box, an energy-saving switch is arranged in the insulating protective shell, a shunt pipe is fixedly connected to one end of the fourth pipeline away from the negative pressure exhaust box, and a shunt cover arranged in a long strip is fixedly connected to both ends of the shunt pipe, and the shunt cover is fixedly connected to the elevator car.

[0007] Preferably, the filtering and purification component includes a box cover, which is fixedly connected to a side wall of the filter box close to the elevator car by a lock, and two U-shaped baffles are symmetrically fixedly connected to the inner wall of the filter box, and a dust filter screen, an activated carbon adsorption net and a dehumidification screen plate are arranged between the two U-shaped baffles from bottom to top, and the dust filter screen, activated carbon adsorption net and dehumidification screen plate are all fixedly connected to a side wall of the box cover close to the filter box.

[0008] Preferably, the energy-saving switch includes a U-shaped magnet arranged in an insulating protective shell, the U-shaped magnet is fixedly connected to one end of the rotating shaft away from the negative pressure exhaust box, two wires are symmetrically arranged on the insulating protective shell, one end of the two wires passes through the insulating protective shell, and the end of the wire passing through the insulating protective shell is fixedly connected to a power pole, a spiral coil is fixedly connected between the two power poles through a fixing rod, a conductor is provided on the spiral coil, and the conductor is located in the middle of the U-shaped magnet, a conductive sheet is slidably connected to the inner side wall of the insulating protective shell, a magnetic sheet is fixedly connected to the side wall of the conductive sheet close to the spiral coil, two pipe sleeves are symmetrically fixedly connected to the side wall of the conductive sheet close to the power pole, and a spring is fixedly connected between a side wall of the conductive sheet away from the pipe sleeve and an inner side wall of the insulating protective shell.

[0009] Preferably, a diverter plate is fixedly connected inside the diverter cover, and a plurality of diverter holes are provided on the diverter plate.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. When the air purification device is in use, except for the ultraviolet lamp which needs additional power supply, other parts can operate spontaneously during the ascent of the elevator, thus significantly saving energy. The ultraviolet lamp does not need to be turned off manually or with the help of a controller. It can be automatically turned on immediately when the elevator starts to rise, that is, the air purification work starts, and it can be automatically turned off immediately when the elevator stops rising, that is, the air purification work stops, which makes it more convenient to use.

[0012] 2. When the shaft rotates, it drives the fan blades to rotate. The rotating fan blades generate a negative pressure suction force in the third pipe and a blowing force in the fourth pipe. The negative pressure suction force acts on the suction hood through the ultraviolet disinfection box, the second pipe, the filter box and the first pipe to suck the air in the elevator car. The blowing force sends the purified air after disinfection and sterilization back to the elevator car through the fourth pipe, the diversion pipe and the diversion hood, so as to circulate and purify the air in the elevator car.

[0013] 3. Since most of the germs are brought into the elevator by outsiders, when purifying the air in the elevator car, it is only necessary to purify the air during the ascending process. There is no need to purify the air when people go downstairs. Because the air purification work is only performed during the ascending process of the elevator, compared with the existing air purification device, the filter component of the present invention has a longer service life and is more energy-efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front structural schematic diagram of an air purification device for an elevator proposed by the present invention;

[0015] Figure 2 A cross-sectional view of the internal structure of an air purification device for an elevator proposed by the present invention;

[0016] Figure 3 This is a schematic structural diagram of a U-shaped baffle of an air purification device for an elevator proposed by the present invention;

[0017] Figure 4 The present invention is a cross-sectional view of the internal structure of an energy-saving switch for an air purification device for an elevator.

[0018] In the figure: 1 elevator car, 2 suction hood, 3 first pipeline, 4 filter box, 5 second pipeline, 6 box cover, 7 U-shaped baffle, 8 dust filter screen, 9 activated carbon adsorption net, 10 dehumidification screen, 11 ultraviolet disinfection box, 12 third pipeline, 13 negative pressure suction box, 14 fourth pipeline, 15 rotating shaft, 16 driving roller, 17 insulating protective shell, 18 U-shaped magnet, 19 connecting pole, 20 fixing rod, 21 spiral coil, 22 conductor, 23 conductive sheet, 24 magnetic sheet, 25 pipe sleeve, 26 spring, 27 shunt pipe, 28 shunt cover. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-4 An air purification device for an elevator comprises an elevator car 1, to which an air suction hood 2 arranged in a long strip shape is fixedly connected, a metal filter screen is fixedly connected inside the air suction hood 2 to prevent debris such as paper pieces and debris from entering the air suction hood 2, a first pipe 3 is fixedly connected to one end of the air suction hood 2, a filter box 4 is fixedly connected to the end of the first pipe 3 away from the air suction hood 2, the filter box 4 is fixedly connected to the outer wall of the elevator car 1, a second pipe 5 is fixedly connected to the end of the filter box 4 away from the first pipe 3, a filter purification component is arranged in the filter box 4, and the filter purification component comprises a box cover 6, and the box cover 6 is fixedly connected to a side wall of the filter box 4 close to the elevator car 1 through a lock.

[0021] Two U-shaped baffles 7 are symmetrically fixedly connected to the inner wall of the filter box 4, and a dust filter screen 8, an activated carbon adsorption net 9 and a dehumidification screen plate 10 are arranged between the two U-shaped baffles 7 from bottom to top. The dust filter screen 8, the activated carbon adsorption net 9 and the dehumidification screen plate 10 are all fixedly connected to the side wall of the box cover 6 close to the filter box 4. The dehumidification screen plate 10 is made of hygroscopic material. Since the box cover 6 is fixed to the filter box 4 by a lock, the dust filter screen 8, the activated carbon adsorption net 9 and the dehumidification screen plate 10 can be easily replaced. The filtering and purification component can use the dust filter screen 8, the activated carbon adsorption net 9 and the dehumidification screen plate 10 to remove dust, remove odor and dehumidify, thereby preliminarily purifying the air flowing through the filter box 4.

[0022] An ultraviolet disinfection and sterilization box 11 is fixedly connected to one end of the second pipeline 5 away from the filter box 4. A plurality of ultraviolet lamps are symmetrically arranged on the inner side wall of the ultraviolet disinfection and sterilization box 11. The ultraviolet lamps can emit ultraviolet rays, and the ultraviolet rays can disinfect and sterilize the air that has been preliminarily purified and flows through the ultraviolet disinfection and sterilization box 11. A third pipeline 12 is fixedly connected to one end of the ultraviolet disinfection and sterilization box 11 away from the second pipeline 5. A negative pressure exhaust box 13 is fixedly connected to one end of the third pipeline 12 away from the ultraviolet disinfection and sterilization box 11. A fourth pipeline 14 is fixedly connected to one end of the negative pressure exhaust box 13 away from the third pipeline 12. A rotating shaft 15 is rotatably connected in one side wall of the negative pressure exhaust box 13, and a fan blade is fixedly connected to one end of the rotating shaft 15 extending into the negative pressure exhaust box 13.

[0023] A one-way bearing is fixedly connected to the rotating shaft 15, and a driving roller 16 is fixedly connected to the one-way bearing. An insulating protective shell 17 is rotatably connected to the rotating shaft 15. The insulating protective shell 17 is arranged away from the negative pressure exhaust box 13. The driving roller 16 contacts a side wall of the elevator shaft. When the elevator rises or descends, the driving roller 16 will be driven to rotate. Since the driving roller 16 is installed on the rotating shaft 15 with the help of the one-way bearing, the driving roller 16 can drive the rotating shaft 15 to rotate only when the elevator rises. When the elevator descends, the rotating shaft 15 does not move. An energy-saving switch is arranged in the insulating protective shell 17. The energy-saving switch includes a U-shaped magnet 18 arranged in the insulating protective shell 17. The U-shaped magnet 18 is fixedly connected to one end of the rotating shaft 15 away from the negative pressure exhaust box 13. Two wires are symmetrically arranged on the insulating protective shell 17. The wires connect the energy-saving switch and the ultraviolet lamp in series, so that the energy-saving switch can control the turning on and off of the ultraviolet lamp.

[0024] One end of the two wires passes through the insulating protective shell 17, and a power connection post 19 is fixedly connected to one end of the wire passing through the insulating protective shell 17. A spiral coil 21 is fixedly connected between the two power connection posts 19 through a fixing rod 20. A conductor 22 is provided on the spiral coil 21, and the conductor 22 is located in the middle of the U-shaped magnet 18. A conductive sheet 23 is slidably connected to the inner wall of the insulating protective shell 17, and a magnetic sheet 24 is fixedly connected to the side wall of the conductive sheet 23 close to the spiral coil 21. Two sleeves 25 are symmetrically fixedly connected to the side wall of the conductive sheet 23 close to the power connection post 19, and a spring 26 is fixedly connected between the side wall of the conductive sheet 23 away from the sleeve 25 and an inner wall of the insulating protective shell 17. When the rotating shaft 15 rotates, it will drive the U-shaped magnet 18 to rotate. Based on the principle of electromagnetic induction, an induced current is generated in the closed loop formed by the spiral coil 21 and the conductor 22.

[0025] When the induced current flows through the solenoid coil 21, a magnetic field is generated, and the magnetic sheet 24 is attracted by the magnetic force to drive the conductive sheet 23 to move toward the power pole 19, so that the conductive sheet 23 is electrically connected to the power pole 19 through the sleeve 25. In this way, the two power poles 19 are connected through the conductive sheet 23, and the ultraviolet lamp starts to work. When the elevator stops rising, the shaft 15 and the fan blades stop rotating, and the air in the elevator car 1 is no longer sucked into the air purification device, and the air purification stops. At the same time, no induced current is generated in the closed loop formed by the solenoid coil 21 and the conductor 22, and the conductive sheet 23 automatically resets under the elastic force of the spring 26, the energy-saving switch is disconnected, and the ultraviolet lamp stops working immediately.

[0026] When the air purification device is in use, except for the ultraviolet lamp which needs additional power supply, the other parts can operate spontaneously during the ascent of the elevator, so it can significantly save energy, and the ultraviolet lamp does not need to be turned off manually or with the help of a controller. It can be automatically turned on immediately when the elevator starts to rise, that is, the air purification work starts, and automatically turned off immediately when the elevator stops rising, that is, the air purification work stops. It is more convenient to use. A shunt pipe 27 is fixedly connected to one end of the fourth pipe 14 away from the negative pressure exhaust box 13, and a shunt cover 28 arranged in a long strip is fixedly connected to both ends of the shunt pipe 27. The shunt cover 28 is fixedly connected to the elevator car 1.

[0027] When the rotating shaft 15 rotates, it will drive the fan blades to rotate, and the rotating fan blades will generate a negative pressure suction force in the third pipe 12, and a blowing force in the fourth pipe 14. The negative pressure suction force acts on the suction hood 2 through the ultraviolet disinfection and sterilization box 11, the second pipe 5, the filter box 4 and the first pipe 3, and sucks the air in the elevator car 1. The blowing force returns the purified air after disinfection and sterilization to the elevator car 1 through the fourth pipe 14, the diverter pipe 27 and the diverter hood 28, and circulates and purifies the air in the elevator car 1. A diverter plate is fixedly connected to the diverter hood 28, and a plurality of diverter holes are arranged on the diverter plate. With the help of the diverter effect of the diverter holes, the purified air can be evenly distributed in the elevator car 1.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air purification device for an elevator, comprising an elevator car (1), characterized in that: The elevator car (1) is fixedly connected to an air suction hood (2) arranged in a long strip shape, a metal filter is fixedly connected inside the air suction hood (2), a first pipe (3) is fixedly connected to one end of the air suction hood (2), a filter box (4) is fixedly connected to one end of the first pipe (3) away from the air suction hood (2), the filter box (4) is fixedly connected to the outer wall of the elevator car (1), a second pipe (5) is fixedly connected to one end of the filter box (4) away from the first pipe (3), a filter purification component is provided inside the filter box (4), an ultraviolet disinfection box (11) is fixedly connected to one end of the second pipe (5) away from the filter box (4), a plurality of ultraviolet lamps are symmetrically arranged on the inner side wall of the ultraviolet disinfection box (11), a third pipe (12) is fixedly connected to one end of the ultraviolet disinfection box (11) away from the second pipe (5), and the third pipe (12) is away from the ultraviolet disinfection box (11). A negative pressure suction box (13) is fixedly connected to one end, a fourth pipe (14) is fixedly connected to the end of the negative pressure suction box (13) away from the third pipe (12), a rotating shaft (15) is rotatably connected in a side wall of the negative pressure suction box (13), a fan blade is fixedly connected to the end of the rotating shaft (15) extending into the negative pressure suction box (13), a one-way bearing is fixedly connected to the rotating shaft (15), a driving roller (16) is fixedly connected to the one-way bearing, and the rotating shaft (15) is fixedly connected to the driving roller (16). An insulating protective shell (17) is rotatably connected to the shaft (15), the insulating protective shell (17) is arranged away from the negative pressure exhaust box (13), an energy-saving switch is arranged inside the insulating protective shell (17), a shunt pipe (27) is fixedly connected to one end of the fourth pipeline (14) away from the negative pressure exhaust box (13), and a shunt cover (28) arranged in a long strip shape is fixedly connected to both ends of the shunt pipe (27), and the shunt cover (28) is fixedly connected to the elevator car (1); The filtering and purifying assembly comprises a box cover (6), the box cover (6) being fixedly connected to a side wall of the filter box (4) close to the elevator car (1) by means of a lock, two U-shaped baffles (7) being symmetrically fixedly connected to the inner side wall of the filter box (4), a dust filtering screen (8), an activated carbon adsorption net (9) and a dehumidifying screen plate (10) being arranged in sequence from bottom to top between the two U-shaped baffles (7), the dust filtering screen (8), the activated carbon adsorption net (9) and the dehumidifying screen plate (10) being fixedly connected to a side wall of the box cover (6) close to the filter box (4); The energy-saving switch comprises a U-shaped magnet (18) arranged in an insulating protective shell (17), the U-shaped magnet (18) being fixedly connected to one end of the rotating shaft (15) away from the negative pressure exhaust box (13), the insulating protective shell (17) being symmetrically provided with two conducting wires, one end of each of the two conducting wires passing through the insulating protective shell (17), the end of the conducting wire passing through the insulating protective shell (17) being fixedly connected to a power connection post (19), a solenoid coil (21) being fixedly connected between the two power connection posts (19) via a fixing rod (20), the solenoid coil (21) being provided with a conductor (2 2), the conductor (22) is located in the middle of the U-shaped magnet (18), a conductive sheet (23) is slidably connected to the inner side wall of the insulating protective shell (17), a magnetic sheet (24) is fixedly connected to a side wall of the conductive sheet (23) close to the spiral coil (21), two pipe sleeves (25) are symmetrically fixedly connected to a side wall of the conductive sheet (23) close to the power connection post (19), a spring (26) is fixedly connected between a side wall of the conductive sheet (23) away from the pipe sleeve (25) and an inner side wall of the insulating protective shell (17), and a wire connects the energy-saving switch and the ultraviolet lamp in series; A flow dividing plate is fixedly connected inside the flow dividing cover (28), and a plurality of flow dividing holes are arranged on the flow dividing plate.

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