WO2015130142A1

WO2015130142A1 - Ceiling mounted air purifier having lifting grill

Info

Publication number: WO2015130142A1
Application number: PCT/KR2015/001964
Authority: WO
Inventors: 신정훈
Original assignee: 신정훈
Priority date: 2014-02-28
Filing date: 2015-02-27
Publication date: 2015-09-03
Also published as: KR101435764B1

Abstract

A ceiling mounted air purifier comprises: a main securing body which is provided on the ceiling inside a room; a lifting grill which is detachably coupled to a bottom part of the main securing body; and a raising and lowering reel which is provided in the main securing body and is linked to the lifting grill so as to vertically raise and lower the lifting grill below the main securing body, and, here, the lifting grill cleanses the air inside the room in the state coupled to the main securing body, while cleaning and replacement take place in a state lowered towards the ground.

Description

Ceiling air cleaner with lifting grill

This application claims priority based on Korean Patent Application No. 10-2014-0023867 filed on February 28, 2014, and all the contents disclosed in the specification and drawings of the application are incorporated in this application.

The present invention relates to a ceiling type air cleaner having a lifting grill, and more particularly, by installing a lifting grill detachably on a fixed body installed on the ceiling and lifting and lowering the lifting grill using a lifting reel. When combined with the fixed body, the filter layer and the air purifying material are used to effectively clean indoor dust and air.When the lifting grill is lowered to the ground by the lifting reel, the filter layer and the air purifying material disposed on the lifting grill can be easily cleaned and replaced. The ceiling-type air cleaner which can be.

Modern people live about 80% of their time in indoor spaces such as houses, offices, and underground spaces. For modern people who spend most of their time indoors, a comfortable indoor environment is very important. In particular, a comfortable indoor environment can increase work efficiency and is emerging as a very important factor in maintaining the health of modern people.

To this end, air cleaners that can remove dust, odors, and harmful gases from indoor air have been developed in various configurations. By using such an air cleaner, the indoor polluted air can be purified and replaced with clean air. However, since the conventional air cleaner is installed and used on the floor of the room, space efficiency is reduced. In addition, the conventional air cleaner installed on the indoor floor has a disadvantage in that there is a limit in collecting and purifying dust floating in the air.

Therefore, in recent years, an air cleaner may be installed on the ceiling of the room. When the air cleaner is installed on the ceiling, space efficiency can be increased while effectively cleaning the air as well as dust floating in the air. However, if the air cleaner is used for a long time, the performance of the filter unit and other main components disposed inside the air cleaner is degraded. In this case, since the air cleaner is installed on the high ceiling surface, it is inconvenient to clean the filter and replace the main parts, and various other problems have occurred.

Prior art literature

Patent Literature

[Patent Document 1] Registered Utility Model Publication No. 20-0332364

[Patent Document 2] Public Utility Model Publication No. 20-2010-0011323

Therefore, the present invention has been made in view of the above problems, the object of the present invention is to install the lifting grill detachably on the fixed body installed on the ceiling and by lifting the lifting grill using the lifting reel, lifting grill is When combined with the fixed body, the filter layer and the air purifying material are used to effectively clean indoor dust and air.When the lifting grill is lowered to the ground by the lifting reel, the filter layer and the air purifying material disposed on the lifting grill are easily cleaned and replaced. It is to provide a ceiling-type air cleaner that can.

Another object of the present invention is to provide a ceiling-type air purifier that is arranged in a plurality of reservoirs in the lifting grill, and filling the water in any one of the reservoirs, so that the indoor humidification by the filled water can be made naturally.

Still another object of the present invention is to provide a ceiling-type air purifier capable of attaching and detaching LED lighting according to a user's selection on the outer circumferential surface of the fixed body installed on the ceiling.

In order to achieve the above object, the present invention provides a fixed body installed on the indoor ceiling; A lifting grill detachably coupled to a lower portion of the fixed body; And an elevating reel installed on the fixed body and connected to the lifting grill to lift the lifting grill up and down under the fixed body, wherein the lifting grill purifies indoor air while being coupled to the fixed body. To provide a ceiling-type air cleaner, characterized in that the cleaning and replacement is made in the state descended to the ground.

The lifting grill is formed in the lower portion of the lifting grill inlet for entering the indoor air; A filter layer disposed on the suction port and having a plurality of filters stacked therein; And a reservoir disposed near the filter layer and accommodating an air purifying material therein.

The lifting grill has a plurality of reservoirs, each of which can accommodate different air purifying materials.

The plurality of reservoirs are composed of four reservoirs, each of the four reservoirs can each independently receive water, charcoal, cypress and bacteria.

The lifting grill may further include a fragrance container for receiving a fragrance material.

The lifting grill further includes a plurality of fragrance barrels respectively installed between the plurality of reservoirs, and different fragrance substances may be accommodated in a pack form in the plurality of fragrance cylinders.

Any one of the plurality of reservoirs may receive water and naturally humidify the room by using the water stored in the reservoirs.

Each reservoir provided in the lifting grill is formed to open at an upper portion thereof, and the fixed body includes a lid at a position corresponding to the open upper portion of each reservoir, and the lifting grill is fixed to the fixed body by the lifting reel. When coupled to the lid of the fixed body may be in close contact with the top of the corresponding reservoir can close the reservoir.

The lid may be provided with a solenoid for opening and closing the reservoir in a state in which the lifting grill is coupled to the fixed body.

The solenoid is electrically connected to the microcomputer and operated by a remote control operation from the ground to selectively open and close the plurality of reservoirs.

Under the lifting grill, a plurality of motor fans are installed around the filter layer, and the plurality of motor fans may be electrically connected to a microcomputer and selectively operated.

A fixing groove is formed on an inner wall of the lifting grill, and the fixing body includes a stopper at a position corresponding to the fixing groove of the lifting grill, and when the lifting grill is coupled to the fixing body by the lifting reel, the stopper The cylinder of the can be inserted into the fixing groove of the lifting grill to prevent the lifting grill from falling to the ground.

A lifting grille elevating switch for manually lifting the lifting grille may be formed on the outer wall of the fixed body.

A ring-shaped fastening piece is formed on an outer circumferential surface of the fixed body, and the fastening piece may be detachably installed with LED lighting.

One side of the LED light may be provided with a light switch for manually turning on and off the LED light.

The lifting reel is a lifting reel main body respectively formed on the inner left and right sides of the fixed body; And lifting bodies respectively formed at left and right upper ends of the lifting grilles and connected to the lifting reel bodies.

Each of the lifting reel main body is a drive motor installed in the fixed body; Two drums installed on an output side of the drive motor; One end is fixed to the top of one of the two drums and the other end of the wire is fixed to the bottom of the other drum of the two drums; And an upper guide roller installed at the fixed main body to guide downwardly the wires fixed to the drum, respectively, and the lifting body is installed at the lifting grill at a position corresponding to the upper guide roller. And a lower guide roller for guiding the downwardly extending wires to be connected to each other. When the driving motor rotates in the forward or reverse direction, both ends of the wire can be simultaneously wound or unwound to move the lifting grill up and down. have.

The lifting body further includes a horizontal holding roller installed on the lower guide roller to prevent shaking of the wire, and the wire passes through the horizontal holding roller of the lifting body in a vertical direction when the wire is wound or unwound by the drum. After it is connected to the horizontal by the lower guide roller can be made to maintain the lifting grill always horizontal.

Cut the wire of the intermediate point located between the lower guide roller of the lifting body, and connect the cut wire to both ends of the unwinding tube having a rotation space, respectively, the end of the cut wire connected to both ends of the unwinding tube By freely rotating in the rotation space of the unwinding tube, it is possible to prevent the wire from twisting when the wire is wound or unwound on the drum.

As described above, according to the present invention, a fixed main body of the air cleaner is installed on the indoor ceiling surface, and the lower part of the fixed main body is installed to be detachable to the lifting grill and can be lowered to the ground through the lifting reel.

Therefore, in the state in which the lifting grill is coupled to the lower part of the fixed body, it is possible to effectively clean the indoor dust and air using the filter layer and the air purifying material.

In addition, the lifting grille can be lowered to the ground through the lifting reel, so that the user can periodically clean or easily replace the filter layer, the air purifying material and the main parts disposed on the lifting grill from the ground.

In addition, according to the present invention, since water is accommodated in any one of the plurality of reservoirs formed at the upper edge of the lifting grill, indoor humidification may be naturally performed by the accommodated water.

In addition, since the LED lighting may be detachable on the outer circumferential surface of the fixed body installed on the ceiling surface, the LED lighting may be detachable on the outer circumferential surface of the air cleaner according to the user's selection.

1 is a front view showing the internal configuration of the air purifier according to the present invention in which the lifting grill is coupled to the fixed body.

Figure 2 is a side view of the internal configuration of the air purifier according to the present invention the lifting grille is lowered from the fixed body.

Figure 3 is a side view showing a state in which the loosening pipe is installed on the wire of the air cleaner according to the present invention.

4 is a side view showing a state in which the lifting grill is lowered from the fixed body in the state of FIG.

5 is a front view showing a state in which LED lighting is installed on the outer peripheral surface of the fixed body of the air cleaner according to the present invention.

Fig. 6 is a side view showing a state in which the lifting grill is lowered from the fixed body in the state of Fig. 3;

7 is a plan view showing a lifting grill of the air cleaner according to the present invention.

Hereinafter, described in more detail with reference to a preferred embodiment of the present invention.

1 is a front view showing the internal configuration of the air purifier according to the present invention in which the lifting grill is coupled to the fixed body, and FIG. 2 is a side view of the internal structure of the air cleaner according to the present invention in which the lifting grill is lowered from the fixed body.

1 and 2, the ceiling type air cleaner according to the present invention includes a fixed body 100, a lifting grill 300, and a lifting reel 200.

The fixed body 100 is installed and fixed to the indoor ceiling, the lifting grill 300 is detachably coupled to the lower portion of the fixed body 100. At this time, the fixed body 100 may be provided with a microcomputer 700 for transmitting an electrical signal to various components.

The lifting reel 200 is installed on the fixed body 100 and connected to the lifting grill 300 to lift and lift the lifting grill 300 up and down under the fixed body 100. At this time, the lifting grill 300 serves to purify the indoor air in the state coupled to the fixed body 100, the cleaning grill and the replacement parts are made in the lifting grill 300 is lowered to the ground.

In addition, a suction port 320 is formed below the lifting grill 300. The inlet 320 may be formed using a plurality of through holes, a straight line, or a grid grille, and indoor air is introduced into the air cleaner through the inlet 320.

The filter layer 310 is disposed above the inlet 320. A plurality of filters are stacked in the filter layer 310, and the plurality of filters may include an activated carbon filter 311, a paper filter 312, and the like. Of course, the present invention is not limited thereto, and the type and number of filters may be selected and changed as necessary.

In the vicinity of the filter layer 310 is disposed a storage container 340 for receiving the air purification material therein. The storage container 340 accommodates air purification materials such as water, charcoal, cypress, and antibacterial liquid.

At this time, the lifting grill 300 may be provided with a plurality of reservoirs 340, the plurality of reservoirs 340 may each accommodate different air purification material. As an example, the lifting grill 300 is provided with four reservoirs 340, each reservoir 340 can independently receive water, charcoal, cypress, bacteria. Of course, the present invention is not limited thereto, and the number of reservoirs and the type of air purifying material may be selected and changed as necessary.

In addition, any one of the plurality of reservoirs 340 accommodates the water, it is possible to naturally humidify the room using the water contained in the reservoir.

On the other hand, in the present invention, the lifting grill 300 may further include a fragrance barrel 330. The fragrance container 330 accommodates a fragrance material and may provide fragrance in the process of purifying air by the air cleaner of the present invention.

When a plurality of reservoirs 340 are formed in the lifting grill 300, a plurality of fragrance cylinders 330 may be installed between the plurality of reservoirs 340, respectively. In addition, different fragrance materials may be accommodated in a pack form in the plurality of fragrance containers 330.

Each reservoir 340 provided in the lifting grill 300 may be formed so that the upper portion is opened, the fixing body 100 has a lid 620 in a position corresponding to the open upper portion of each reservoir 340. It can be provided. In this configuration, when the lifting grill 300 is coupled to the fixed body 100 by the lifting reel 200, the lid 620 of the fixed body 100 is in close contact with the open upper portion of the corresponding reservoir 340 The reservoir 340 is closed.

In addition, the solenoid 610 may be installed on the lid 620. The solenoid 610 is configured to selectively open the lid 620, and serves to open and close the reservoir 340 in a state in which the lifting grill 300 is coupled to the fixed body 100. At this time, the solenoid 610 is electrically connected to the microcomputer 700, the user on the ground can operate the solenoid 610 to selectively open and close the plurality of reservoirs 340 using the remote control 500. Such a solenoid 610 and the lid 620 may be referred to collectively as a switch 600 that serves to open and close the reservoir 340.

These solenoids may be installed in a plurality of fragrance cylinder 330. In this case, since the plurality of fragrance vessel 330 independently accommodates various kinds of fragrance substances, the user can selectively manipulate the solenoids installed in the plurality of fragrance vessel 330 so that the desired fragrance is discharged into the room.

A plurality of motor fans 110 may be installed below the lifting grill 300. The motor fan 110 may be installed around the filter layer 310 at the bottom of the lifting grill 300. For example, the motor fan 110 may be installed in four directions in front, rear, left and right of the lifting grill 300. In addition, the motor fan 110 may be electrically connected to the microcomputer 700 to be selectively operated according to a user manipulation or a predetermined pattern.

At this time, when the air cleaner, that is, the fixed body 100 of the present invention is installed in the center of the indoor ceiling surface, it is possible to operate all four motor fans 110. On the other hand, when the fixed body 100 is installed on one side or corner of the indoor ceiling surface, the motor fan close to the wall can stop the operation, only the motor fan toward the large indoor space can be operated.

On the other hand, the fixing groove 820 is formed on the inner wall of the lifting grill 300, the fixing body 100 may be provided with a stopper 800 at a position corresponding to the fixing groove 820 of the lifting grill 300. . In such a configuration, when the lifting grill 300 is lifted by the lifting reel 200 to be coupled to the fixed body 100, the cylinder 810 of the stopper 800 is fixed to the fixing groove 820 of the lifting grill 300. Is inserted into the lifting grill 300 to prevent the fall from falling to the ground.

In addition, a lifting grill lifting switch 120 for manually lifting the lifting grill 300 may be formed on an outer wall of the fixing body 100. When the lifting grille elevating switch 120 is used, when the remote controller 500 is lost or malfunctions, the user may manually raise or lower the lifting grille 300.

On the other hand, a ring-shaped fastening piece 420 is formed on the outer circumferential surface of the fixed body 100, the LED light 400 may be detachably installed on the fastening piece 420. LED lighting 400 is electrically connected to the microcomputer 700 may be turned on and off by the user using the remote control (500). When the LED lighting 400 is installed, the air cleaner of the present invention performs the role of lighting at the same time.

In addition, a light switch 410 for manually turning on or off the LED light 400 may be installed at one side of the LED light 400. Therefore, when the remote control 500 is lost or malfunctions, the user may manually turn on or turn off the LED light 400 using the light switch 410.

In the ceiling type air purifier according to the present invention, the lifting reel 200 is formed on the left and right sides of the lifting reel main body 210 and the lifting grill 300, respectively, which are respectively formed on the left and right sides of the fixed body 100, and the lifting reel It includes a lifting body 220 connected to the main body 210.

Each lifting reel main body 210 is a drive motor 240 installed on the fixed body 100, two drums 250 installed on the output shaft of the drive motor 240, and both ends of the wire is fixed to the drum 250 230. At this time, one end of the wire 230 is fixed to the top of one drum of the two drums 250 and the other end is fixed to the bottom of the other drum of the two drums 250. Therefore, when the driving motor 240 rotates in the forward or reverse direction, both ends of the wire 230 are wound or unwound at the same time on the drum 250.

In addition, the lifting reel main body 210 further includes a pair of upper guide rollers 260 installed on the fixed body 100. Both ends of the wire 230 fixed to the drum 250 are guided downward by a pair of upper guide rollers 260, respectively.

In addition, the lifting body 220 includes a pair of lower guide rollers 270 installed at a position corresponding to the pair of upper guide rollers 260. The wire 230 extending downward by the upper guide roller 260 is guided in a horizontal direction by a pair of lower guide rollers 270 installed in the lifting grill 300 and connected to each other.

By such a configuration, when the driving motor 240 rotates in the forward or reverse direction, both ends of the wire 230 move or lift the lifting grill 300 in the vertical direction while simultaneously winding or unwinding the drum 250.

In addition, the lifting member 220 may further include a horizontal holding roller 280 installed on the upper portion of the lower guide roller 270. The horizontal holding roller 280 serves to guide the wire 230 extending vertically between the upper guide roller 260 and the lower guide roller 270 so as not to move from side to side while being wound or unwound on the drum 250. Therefore, the wire 230 is horizontally connected by the lower guide roller 270 after passing through the horizontal holding roller 280 of the elevating body 220 in the vertical direction when winding or unwinding the drum 250, thereby The lifting grill 300 is always horizontal. In other words, the wire 230 extending vertically between the upper guide roller 260 and the lower guide roller 270 and the pair of lower guide rollers 270 arranged in the horizontal direction always maintain a right angle. The lifting body 220 provided with the pair of lower guide rollers 270 and the lifting grill 300 provided with the lifting body 220 are kept horizontal without tilting to one side during the lifting.

On the other hand, the intermediate wires 230 between the lower guide rollers 270 of the lifting member 220 may be cut, and the cut wires 230 may be connected to both ends of the unwinding pipe 290 having a rotating space, respectively. have. In this case, the ends of the cut wire 230 connected to both ends of the unwinding tube 290 may freely rotate in the rotation space of the unwinding tube 290, whereby the wire 230 is wound around the drum 250. Can be prevented from twisting when the wire 230 is loosened or loosened.

The remote control 500 allows a user to operate the ceiling type air purifier of the present invention from a long distance such as the ground. At this time, the remote control 500 is a lift button for raising and lowering the lifting reel 200, the switch on / off button for turning on / off the plurality of switch 600 individually, a plurality of motor fan 110 individually It may include a motor fan on / off button for turning on / off. The remote controller 500 may transmit and receive a signal in real time with the microcomputer 700 installed in the fixed body 100. As described above, the control of each part using the microcomputer 700 is generally used in the related art, and thus a detailed description thereof will be omitted.

An exemplary method of using the ceiling air purifier according to the present invention configured as described above will be described.

First, the fixed body 100 of the air cleaner is installed on the indoor ceiling surface. Thereafter, the LED lighting 400 is coupled to the outer circumferential surface of the fixed body 100 using the fastening piece 420. At this time, the LED lighting 400 may be fixed to the ceiling surface.

In this state, when the user presses the down button disposed on the remote controller 500, the driving motor 240 is operated by the control of the microcomputer 700 to rotate the drum 250. Accordingly, the wire 230 wound on the drum 250 is released while being guided along the upper guide roller 260, the horizontal holding roller 280, and the lower guide roller 270, and the lifting grill 300 is grounded. Will descend.

When the lifting grill 300 descends to the ground, the storage tank 340 disposed in the lifting grill 300, each containing the air purifying water, charcoal, cypress, bacteria prevention liquid independently, fragrance barrel 330 Inside, each contains fragrant substances (aroma, cypress, etc.).

Then, when the user presses the lift button of the remote control 500 on the ground, the driving motor 340 is operated to rotate the drum 250 in the opposite direction. When the drum 250 rotates, the lifting grill 300 is raised while the wire 230 is wound around the outer circumferential surface of the drum 250. At this time, the wire 230 is guided and rises along the upper guide roller 260, the horizontal holding roller 280, the lower guide roller 270. When the wire 230 is wound and the lifting grill 300 is completed at the bottom of the fixing body 100, the cylinder 810 of the stopper 800 is inserted into the fixing groove 820 so that the lifting grill 300 is downward. Prevent fall.

In this state, when the air cleaner is operated, the motor fan 240 is operated, and thus, indoor dust and air are introduced into the air cleaner through the inlet 320 to the activated carbon 311 and the paper filter 312. It is filtered by the filter layer 310 made. The filtered clean air is discharged to the outside of the air cleaner.

On the other hand, the water contained in one reservoir 340 is a natural humidification of the room, the air purifying material and the fragrance material contained in the fragrance container 330 filled in the remaining reservoir 340 is slowly discharged into the room indoor air Cleanses and aromas.

If you want to close the storage container 340 containing one air purifying substance, for example, charcoal contained in the storage container 340, operate the switch 600 corresponding to the storage container 340 containing the charcoal. . In this case, the solenoid 610 of the switch 600 is lowered to block the lid 620, thereby closing the storage container 340 is not discharged to the charcoal components contained in the storage container 340 to the outside.

Explanation of the sign

100: air cleaner 110: motor fan

120: lifting grill lifting switch 200: lifting reel

210: main body 220: lifting body

230: wire 240: drive motor

250: drum 260: upper guide roller

270: lower guide roller 280: horizontal holding roller

290: unwinding tube 291: rotation space

300: lifting grill 310: filter layer

311: activated carbon 312: paper filter

320: suction port 330: fragrance

340: reservoir 400: LED lighting

410: light switch 420: fastening

500: remote control 600: switchgear

610: solenoid 620: lid

700: micom 800: stopper

810: cylinder 820: fixing groove

Claims

A fixed body installed on the indoor ceiling;

A lifting grill detachably coupled to a lower portion of the fixed body; And

A lifting reel installed on the fixed body and connected to the lifting grill to lift the lifting grill up and down under the fixed body,

The lifting grill purifies the indoor air in a state coupled to the fixed body, characterized in that the cleaning and replacement is performed in the state descending to the ground, ceiling type air cleaner.
According to claim 1, The lifting grill,

An inlet formed at a lower portion of the lifting grill and into which indoor air is introduced;

A filter layer disposed on the suction port and having a plurality of filters stacked therein; And

And a reservoir disposed in the vicinity of the filter layer and containing an air purifying material therein.
The method of claim 2,

The lifting grill has a plurality of reservoirs, the plurality of reservoirs, characterized in that each receiving a different air purification material, ceiling type air cleaner.
The method of claim 3,

The plurality of reservoirs are composed of four reservoirs, the four reservoirs are characterized in that each independently receive water, charcoal, cypress and antibacterial liquid, ceiling air purifier.
The method of claim 2,

The lifting grill further comprises a fragrance container for receiving the fragrance material, ceiling type air cleaner.
The method of claim 3,

The lifting grill further includes a plurality of fragrance barrels respectively installed between the plurality of reservoirs,

The interior of the plurality of fragrance cylinders, characterized in that different fragrance substances are accommodated in the form of a pack, ceiling type air purifier.
The ceiling type air purifier of claim 3, wherein any one of the plurality of reservoirs accommodates water and naturally humidifies a room using water stored in the reservoirs.
The method of claim 3,

Each reservoir provided in the lifting grill is formed to open the upper portion,

The fixed body is provided with a lid in a position corresponding to the open upper portion of each reservoir,

When the lifting grill is coupled to the fixed body by the lifting reel, the lid of the fixed body is in close contact with the upper portion of the corresponding reservoir to close the reservoir, ceiling air purifier.
The method of claim 8,

The lid is provided with a solenoid for opening and closing the reservoir in a state in which the lifting grill is coupled to the fixed body, ceiling-type air cleaner.
The method of claim 9,

The solenoid is electrically connected to the microcomputer, and is operated by a remote control operation from the ground to selectively open and close the plurality of reservoirs, ceiling type air freshener.
The method of claim 2,

Under the lifting grill, a plurality of motor fans are installed around the filter layer.

The plurality of motor fans are electrically connected to the microcomputer and selectively operated, ceiling type air cleaner.
The method of claim 1,

A fixing groove is formed on the inner wall of the lifting grill,

The fixing body is provided with a stopper at a position corresponding to the fixing groove of the lifting grill,

When the lifting grill is coupled to the fixed body by the lifting reel, the cylinder of the stopper is inserted into the fixing groove of the lifting grill to prevent the lifting grill from falling to the ground. .
The method of claim 1,

Ceiling fixed air cleaner, characterized in that the lifting grille lifting switch for manually lifting the lifting grille is formed on the outer wall of the fixed body.
The method of claim 1,

Ring-shaped fastening pieces are formed on the outer circumferential surface of the fixed body,

The fastening piece is characterized in that the LED light is detachably installed, the ceiling type air cleaner.
The method of claim 14,

One side of the LED light, characterized in that the light switch for manually turning on and off the LED light, characterized in that the ceiling type air cleaner.
The method of claim 1, wherein the lifting reel,

Elevating reel bodies respectively formed on the inner left and right sides of the fixed body; And

Ceiling lifting air purifier, characterized in that it comprises a lifting body which is formed on each of the upper left and right sides of the lifting grill is connected to the lifting reel main body.
The method of claim 16, wherein each of the lifting reel main body,

A drive motor installed in the fixed body;

Two drums installed on an output side of the drive motor;

One end is fixed to the top of one of the two drums and the other end of the wire is fixed to the bottom of the other drum of the two drums; And

A pair of upper guide rollers installed at the fixed main body and configured to guide downwardly the wires fixed to the drum at both ends thereof,

The lifting body includes a pair of lower guide rollers installed on the lifting grill at a position corresponding to the upper guide rollers to guide the wires extending downwards to each other.

When the driving motor is rotated in the forward or reverse direction, both ends of the wire is wound or unwound simultaneously, characterized in that the lifting grill moves up and down, ceiling type air cleaner.
The method of claim 17,

The lifting body further includes a horizontal holding roller installed on the lower guide roller to prevent shaking of the wire,

When the wire is wound or unwound on the drum, the wire passes through the horizontal holding roller in the vertical direction and is connected horizontally by the lower guide roller, so that the lifting grill is always horizontal. Type air purifier.
The method of claim 17,

Cutting the wire of the intermediate point located between the lower guide roller of the lifting body, and connecting the cut wire to both ends of the unwinding pipe having a rotation space, respectively,

An end of the cut wire connected to both ends of the unwinding tube freely rotates in the rotation space of the unwinding tube, preventing the wire from twisting when the wire is wound or unwound on the drum. air cleaner.