KR20150012960A - Sterilization and drier device for the bedclothes and clothes - Google Patents

Sterilization and drier device for the bedclothes and clothes Download PDF

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Publication number
KR20150012960A
KR20150012960A KR1020130089185A KR20130089185A KR20150012960A KR 20150012960 A KR20150012960 A KR 20150012960A KR 1020130089185 A KR1020130089185 A KR 1020130089185A KR 20130089185 A KR20130089185 A KR 20130089185A KR 20150012960 A KR20150012960 A KR 20150012960A
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KR
South Korea
Prior art keywords
moving
hot air
sterilizing
fixed
bedding
Prior art date
Application number
KR1020130089185A
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Korean (ko)
Inventor
정순규
Original Assignee
정순규
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Publication date
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Priority to KR1020130089185A priority Critical patent/KR20150012960A/en
Publication of KR20150012960A publication Critical patent/KR20150012960A/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/04Heat
    • A61L2/06Hot gas
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10Apparatus features
    • A61L2202/11Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10Apparatus features
    • A61L2202/15Biocide distribution means, e.g. nozzles, pumps, manifolds, fans, baffles, sprayers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/20Targets to be treated
    • A61L2202/26Textiles, e.g. towels, beds, cloths

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The present invention is not only capable of drying, disinfecting and deodorizing even a bed mattress as well as a general bedding sheet, a bed sheet, a blanket, etc., as well as a bed mattress by automatically moving it without drying in the sun, The present invention relates to a sterilizing and drying apparatus for clothes and a large bedding and sterilizing apparatus capable of sterilizing and drying the clothes, Constituting a moving part; The lower moving part is provided with a fixing bracket on the lower side of the frame to connect the lower inlet roller and the lower outlet roller by a mesh belt and to fix the bracket between the lower inlet roller and the outlet roller, A fixed hot air duct formed with holes and a fixed suction duct; The upper moving part is provided with a conveying screw and a moving bracket which are vertically moved by a guide bar on the upper side of the frame, and the upper and lower exit rollers are rotatably installed on the moving bracket, The moving bracket between the upper inlet roller and the outlet roller is provided with a moving hot air duct and a moving suction duct each having a plurality of air holes; The fixed hot air duct and the moving hot air duct are respectively connected to a hot air fixing pipe and a hot air supply pipe of a heat exchange unit connected to a vacuum generating unit by a hot air blowing pipe; Connecting the vacuum suction pipe of the heat exchange unit connected to the vacuum generating unit to the suction fixed pipe and the vacuum suction pipe respectively to the fixed suction duct and the moving suction duct; It is an invention that can be achieved by constructing a sterilizing and drying device so as to sterilize and dry the large bedding inserted into the inlet.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sterilizing and drying device,

The present invention relates to a bedding and a garment for automatically drying bed mattresses as well as general bedding and various clothes such as a bedding sheet, a bed sheet, and a blanket, and drying and disinfecting and drying the mite and dust, And more particularly, to a bedding mattress (hereinafter referred to as "large bedding") as well as general bedding such as a bedding sheet, a bed sheet, a blanket, and various clothes, And sterilization and deodorization, as well as a large bedding and a clothes sterilizing and drying apparatus that can be mounted on a vehicle and moved to a desired place and then sterilized and dried.

Generally, when a person sleeps, he or she will use the appropriate seat and bedding for the seasons. Such a seat or bedding is easily dampened by the sweat absorbed in the sweat when the person sleeps, Mites, molds, and the like, and the above cases are applied to all types of bedding such as bed cover, sheets and blankets.

However, the above-mentioned drying method of the bedding requires that the bedding which is dampened by moisture is put on a sunny place on a sunny day, sterilized and dried in the sun for several hours, and the bedding dust and mites There was a very troublesome and uncomfortable problem to be lifted out of bedding.

Particularly, the sterilization and drying method as described above is a method in which bedding is sunk under sunlight for a few days on a sunny day. Therefore, not only is it difficult to utilize in the winter when the sunlight is weak and the temperature is low, There was a problem that the bedding could not be dried even though it was easily damped.

In addition, since the bedding is laid under the sun and the person knocks the bedding directly with the bat, the dust and the mites are shaken from the bedding, so that the dust and the mites falling from the bedding enter the clothes and the respirator of the working person .

Meanwhile, sterilization and drying of the bedding are indispensable in spite of the various troublesome and uncomfortable problems as described above. If sterilization and drying of the bedding are not appropriately performed and they are continuously used in a damp condition, the environment of various harmful bacteria such as ticks and mold And it causes skin diseases or allergies due to various kinds of harmful bacteria such as ticks and fungi. Therefore, a device that can easily sterilize and dry bedding in the room regardless of the season or sunlight is required. And the device capable of drying can be used not only for bedding but also for sterilizing and drying clothes stored for a long time after washing.

In order to solve these problems, Patent No. 10-878164, developed and registered by the inventor of the present invention, solves the above-described problems of the related art. However, compared with the size of the sterilizing and drying apparatus, There is a problem that it is not easy to store, and in addition, there is a case that dust or mites are left in the bedding due to insufficient power to remove dust from the bedding, etc., There is a problem in that it is escaped to the outside of the apparatus together with the hot wind and makes the surroundings uncomfortable similarly to the vacuum cleaner.

Particularly, since the upper case in which the upper moving part is installed is rotatably opened and closed to move the bedding, there is a restriction on the thickness of the bedding that can be inserted into the sterilizing and drying device, There is a problem that sterilization and drying work can not be performed on bedding and the like, and there is a problem that it is not enough to use for business because of the above problems.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an absorbent article which is provided with a moving part connected to an inlet roller and an outlet roller by a mesh belt and having upper and lower parts, and moving bedding and clothes between the upper moving part and the lower moving part, A sterilizing and drying device for drying the bedding and sterilizing and disinfecting dust and the like in the bedding and clothes and discharging the sterilized product through the suction duct while the lower moving part of the device is operated in a fixed position, The present invention provides a large bedding and a clothes sterilizing and drying apparatus which are constructed such that the entire body is vertically moved up and down to insert a large bedding including a bed mattress to sterilize and dry.

It is another object of the present invention to provide a sterilizing and drying device as described above, which is installed in a freight vehicle and can be moved to a desired place, so that the sterilizing and drying device of the present invention can be moved easily And to provide a sterilization and drying apparatus for a large bedding and clothes for use.

The object of the present invention is to provide an image forming apparatus, comprising: a lower moving unit fixed in a frame having an inlet and an outlet; and an upper moving unit vertically conveyed; The lower moving part is provided with a fixing bracket on the lower side of the frame to connect the lower inlet roller and the lower outlet roller by a mesh belt and to fix the bracket between the lower inlet roller and the outlet roller, A fixed hot air duct formed with holes and a fixed suction duct; The upper moving part is provided with a conveying screw and a moving bracket which are vertically moved by a guide bar on the upper side of the frame, and the upper and lower exit rollers are rotatably installed on the moving bracket, The moving bracket between the upper inlet roller and the outlet roller is provided with a moving hot air duct and a moving suction duct each having a plurality of air holes; The fixed hot air duct and the moving hot air duct are respectively connected to a hot air fixing pipe and a hot air supply pipe of a heat exchange unit connected to a vacuum generating unit by a hot air blowing pipe; Connecting the vacuum suction pipe of the heat exchange unit connected to the vacuum generating unit to the suction fixed pipe and the vacuum suction pipe respectively to the fixed suction duct and the moving suction duct; This can be accomplished by constructing a sterilizing and drying device to sterilize and dry the large bedding inserted into the inlet.

In addition, since the frames of the sterilizing and drying device having the lower moving part and the upper moving part are fixed to the bottom of the cargo compartment of the freight vehicle, the sterilizing and drying device can be easily moved to a required place and used .

As described above, according to the present invention, when a large bedding inserted through an inlet is moved between an upper moving part and a lower moving part while sterilizing and drying, the bedding is struck by a punching rod rotated by a motor to remove foreign matters such as dust It is possible to effectively prevent foreign matter such as dust from being reattached to the bedding by ultrasonic waves generated from the ultrasonic wave generating part and to circulate hot air generated in the hot air generating part It is possible to increase the heat efficiency and to achieve the energy saving effect corresponding to the green growth. In addition, the sterilizing fragrance is sprayed from the sterilizing fragrance spraying part to the bedding which is sterilized and dried and discharged to the exit, It is possible to provide the effect.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exemplary view showing a state in which the apparatus of the present invention is installed in a freight vehicle;
Figure 2 is a perspective view of the device of the present invention.
3 is a perspective view showing an upper and lower moving part of the apparatus of the present invention,
4 is a cross-sectional view of one side of the apparatus of the present invention,
FIG. 5 is a side sectional view showing a state in which a large bedding is inserted into the apparatus of the present invention
FIG. 6 is a side sectional view showing the operation of the upper moving part when a large bedding is inserted into the device of the present invention
FIG. 7 is a side sectional view showing a state in which a large bedding is moving in the apparatus of the present invention
8 is a cross-sectional view of one side of the apparatus of the present invention showing a state in which large bedding is being discharged
9 is a cross-sectional view of one side of the apparatus of the present invention showing a state in which the sterilization and drying process is completed

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The sterilizing and drying apparatus 100 of the present invention for sterilizing and drying the large bedding 400 which is easily damped has an inlet 111 and an outlet 114 for inserting and discharging the large bedding 400 A lower moving part 200 fixed in the frame 110 and an upper moving part 300 moved upward and downward.

At this time, the lower moving part 200 is provided with a fixing bracket 201 below the frame 110, and the lower inlet roller 210 and the lower outlet roller 211 are rotatably installed in the fixing bracket 201 And a plurality of vent holes 221 and 223 are formed in the fixing bracket 201 between the lower inlet roller 210 and the outlet roller 211. In addition, A hot air duct 220 and a fixed suction duct 222 are installed.

The upper moving part 300 is provided with a moving bracket 301 which is moved up and down by a conveying screw 302 and guide bars 303 and 304 on the inside of the frame 110, The upper inlet roller 310 and the upper outlet roller 311 are rotatably installed on the upper inlet roller 310 and the outlet roller 311 and connected to the upper inlet roller 310 and the outlet roller 311 by a mesh- The moving bracket 301 is provided with a moving hot air duct 320 and a moving suction duct 322 in which a plurality of air holes 321 and 323 are formed.

The vacuum generating unit 120 is connected to the fixed hot air duct 220 and the moving hot air duct 320 of the upper moving unit 200 and the upper moving unit 300 by the hot air fixing pipe 123 and the hot air duct 124, The hot wind of the heat exchanging unit 121 is connected to the hot air blowing pipe 122 through the hot air fixing pipe 123 and the hot air blowing pipe 124, And the moving hot air duct 320 so as to be discharged into the respective vent holes 221 and 321.

Meanwhile, the vacuum generating unit 120 is connected to the fixed suction duct 222 and the moving suction duct 322 of the lower moving unit 200 and the upper moving unit 300 by the suction fixing pipe 126 and the suction wrinking pipe 127, And the vacuum suction pipes 125 of the heat exchanging part 121 are connected to each other to discharge the large bedding 400 from the ventilation holes 221 of the fixed hot air duct 220 and the ventilation holes 321 of the moving hot air duct 320, Sterilized and dry hot air and various dusts.

A punching rod 230 is rotatably installed between the fixed hot air duct 220 and the fixed suction duct 222 in the lower moving part 200. When the punching rod 230 is rotated by a motor, 230 can be rotated while striking the mesh belt 212 and the large bedding 400 of the lower moving part 200.

In the present invention constructed as described above, the large bedding 400 is inserted into the opening 111 of the frame 110 provided with the brushes 112 and 113 for sterilization and drying, and the sterilizing and drying device 100 The motor rotates the feed screw 302 to move the moving bracket 301 provided with the upper moving part 300 downward to start the sterilization and drying operation.

The lowering of the moving bracket 301 provided with the upper moving part 300 is stopped when the sensor 305 installed on the entrance side of the moving bracket 301 detects the large bedding 400. Therefore, The mesh cylinder belt 312 stops the descent while holding the large bedding 400 together with the mesh cylinder belt 212 of the lower moving part 200 with an appropriate force.

When the lowering of the upper moving part 300 is finished, another motor is operated and the upper and lower inlet rollers 310 and 210 of the lower moving part 200 are rotated, The bedding 400 is moved between the lower moving part 200 and the mesh belts 212 and 312 of the upper moving part 300.

At this time, the vacuum generating part 120 and the heat exchanging part 121 operate simultaneously with the rotation of the upper inlet roller 310 and the lower inlet roller 210, and the hot air supply pipe 122, the hot air fixing pipe 123, Hot hot air is supplied to the fixed hot air duct 220 and the moving hot air duct 320 so that the hot hot air flows through the vent hole 221 of the fixed hot air duct 220 and the vent hole 321 of the moving hot air duct 320, So that the large bedding 400 is sterilized and dried.

In addition, since the large bedding 400 moving continuously is hit by the punching rod 230 rotated by the motor, it is possible to remove harmful substances such as mites, dust and the like sterilized from the large bedding 400.

At this time, when the sterilizing lamps 140 and 141 installed on the upper and lower sides of the frame 110 are lighted, the sterilization operation of the large bedding 400 can be performed more efficiently, and the ultrasonic waves are generated in the ultrasonic generating unit 150 The punching rod 230 can be rotated to further enhance the efficiency of removing the harmful substances and dust.

The operation of the vacuum generating unit 120 and the heat exchanging unit 121 for supplying the hot air sucks air through the vacuum suction pipe 125, the suction fixing pipe 126 and the suction bell pipe 127 simultaneously with the supply of hot air, Dust and heat inside the suction duct 110 are sucked through the ventilation holes 223 of the fixed suction duct 222 and the ventilation holes 323 of the moving suction duct 322, 127 and the vacuum suction pipe 125, so that harmful substances and dust can be effectively filtered out through the filter while sterilizing and drying, while the thermal efficiency is increased.

In particular, brushes 112, 113, 115 and 116 are installed at the inlet 111 and the outlet 114 formed in the frame 110 of the sterilizing and drying apparatus 100 of the present invention, The thermal efficiency of sterilizing and drying the large bedding 400 can be further increased and the sterilizing fragrance sprayer 160 can be installed on the frame 110 on the side of the outlet 114 When sterilization and drying are completed and a sterilizing aromatic agent is sprayed on the large bedding 400 discharged to the outlet 114, the sterilized and dried large bedding 400 can be used more freshly.

When the large bedding 400 is discharged to the outlet 114 of the frame 110 after the sterilization and drying operation as described above, the sensor 306 installed on the moving bracket 301 on the outlet 114 side moves toward the bedding 400 The moving screw 302 is rotated to move the moving bracket 301 and the upper moving part 300 upward so that the sterilizing and drying device 100 moves to the next position The user is called in the waiting state of the job.

In particular, the sterilizing and drying apparatus 100 of the present invention may be constructed such that the frame 110 is fixed to the bottom of the cargo compartment of the freight vehicle 500 to easily move the sterilizing and drying apparatus 100 to a required place So that the sterilizing and drying apparatus 100 can be moved to a dense area such as an apartment complex, thereby making it possible to use as a business for sterilizing and drying heavy bed mattresses and the like.

Description of the Related Art [0002]
100: sterilizing and drying device 110: frame 111: inlet
112, 113, 115, 116: Brush 114:
120: Vacuum generator 121: Heat exchanger 122: Hot air supply pipe
123: hot air fixing pipe 124: hot air duct 125: vacuum suction pipe
126: suction tube 127: suction tube 140, 141: sterilizing lamp
150: ultrasonic generator 160: sterilizing fragrance sprayer
200: lower moving part 201: fixing bracket 210: lower inlet roller
211: Lower outlet roller 212: Mesh barrel belt 220: Fixed hot air duct
221, 223: ventilation hole 222: fixed suction duct 230: punching rod
300: Upper moving part 301: Moving bracket 302: Feed screw
303, 304: Guide bar 305, 306: Sensor 310: Upper inlet roller
311: Upper exit roller 312: Mesh barrel belt 320: Movable hot air duct
321, 323: ventilation hole 322: moving suction duct 400: large bedding
500: Freight vehicles

Claims (7)

A lower moving part fixed in the inside of a frame having an inlet and an outlet and an upper moving part being vertically conveyed;
The lower moving part is provided with a fixing bracket on the lower side of the frame to connect the lower inlet roller and the lower outlet roller by a mesh belt and to fix the bracket between the lower inlet roller and the outlet roller, A fixed hot air duct formed with holes and a fixed suction duct;
The upper moving part is provided with a conveying screw and a moving bracket which are vertically moved by a guide bar on the upper side of the frame, and the upper and lower exit rollers are rotatably installed on the moving bracket, The moving bracket between the upper inlet roller and the outlet roller is provided with a moving hot air duct and a moving suction duct each having a plurality of air holes;
The fixed hot air duct and the moving hot air duct are respectively connected to a hot air fixing pipe and a hot air supply pipe of a heat exchange unit connected to a vacuum generating unit by a hot air blowing pipe;
Connecting the vacuum suction pipe of the heat exchange unit connected to the vacuum generating unit to the suction fixed pipe and the vacuum suction pipe respectively to the fixed suction duct and the moving suction duct; Wherein the sterilizing and drying device is constructed so as to sterilize and dry the large bedding inserted into the inlet.
The method according to claim 1,
The sterilizing and drying device having the lower moving part and the upper moving part is fixed to the bottom surface of the cargo compartment of the freight vehicle so that the sterilizing and drying device can be easily moved to a required place, One large bedding and clothes sterilizer and dryer.
The method according to claim 1 or 2,
Wherein the lower moving part is configured such that a punching rod is rotatably installed between the fixed hot air duct and the fixed suction duct and the rotating rod is rotated by a motor so that the punching rod can rotate while hitting the mesh belt and the large bedding Sterilizing and drying equipment for large bedding and clothing.
The method according to claim 1 or 2,
Wherein the moving bracket of the upper moving part is provided with a sensor on a moving bracket close to an inlet and an outlet so as to detect a large bedding that is inserted into an entrance or exits to an exit.
The method according to claim 1 or 2,
Wherein the frame of the sterilizing and drying device is provided with a sterilizing lamp on the inner upper surface and the bottom surface and a sterilizing fragrance spraying unit is installed on the inner side surface of the outlet of the frame.
The method according to claim 1 or 2,
The frame of the sterilizing and drying apparatus is provided with sterilizing lamps on the upper and lower surfaces of the sterilizing and drying apparatus, an ultrasonic generator is installed on the frame between the sterilizing lamps on the upper surface, and a sterilizing fragrance sprayer is installed on the inner surface of the outlet of the frame A sterilization and drying device for a large bedding and clothes.
The method according to claim 1 or 2,
Wherein a bristle is installed at the entrance and the exit of the frame to minimize the outflow of hot air and dust from the inside to the outside.
KR1020130089185A 2013-07-26 2013-07-26 Sterilization and drier device for the bedclothes and clothes KR20150012960A (en)

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Application Number Priority Date Filing Date Title
KR1020130089185A KR20150012960A (en) 2013-07-26 2013-07-26 Sterilization and drier device for the bedclothes and clothes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130089185A KR20150012960A (en) 2013-07-26 2013-07-26 Sterilization and drier device for the bedclothes and clothes

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KR20150012960A true KR20150012960A (en) 2015-02-04

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110924107A (en) * 2019-12-12 2020-03-27 华南理工大学广州学院 Working method of intelligent clothes hanger
KR20200080057A (en) 2018-12-26 2020-07-06 (주)큐어 Compound sterilization device
CN111388691A (en) * 2020-04-14 2020-07-10 程光华 High-efficient degassing unit of raw materials for textile processing
KR102272779B1 (en) 2021-02-15 2021-07-05 홍석중 Bedding and clothing mobile cleaning system
WO2021242009A1 (en) * 2020-05-27 2021-12-02 서진원 Automatic mattress sterilization device
KR20210146743A (en) * 2020-05-27 2021-12-06 서진원 Sterilizing apparatus for mattress
KR20220066575A (en) * 2020-11-16 2022-05-24 최우용 Mask sterilization and coating device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200080057A (en) 2018-12-26 2020-07-06 (주)큐어 Compound sterilization device
CN110924107A (en) * 2019-12-12 2020-03-27 华南理工大学广州学院 Working method of intelligent clothes hanger
CN110924107B (en) * 2019-12-12 2021-11-19 华南理工大学广州学院 Working method of intelligent clothes hanger
CN111388691A (en) * 2020-04-14 2020-07-10 程光华 High-efficient degassing unit of raw materials for textile processing
WO2021242009A1 (en) * 2020-05-27 2021-12-02 서진원 Automatic mattress sterilization device
KR20210146743A (en) * 2020-05-27 2021-12-06 서진원 Sterilizing apparatus for mattress
JP2023527738A (en) * 2020-05-27 2023-06-30 ソ、ジンウォン automatic mattress sterilizer
KR20220066575A (en) * 2020-11-16 2022-05-24 최우용 Mask sterilization and coating device
KR102272779B1 (en) 2021-02-15 2021-07-05 홍석중 Bedding and clothing mobile cleaning system

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