CN111407913A - Portable atomizing sterilization device - Google Patents

Portable atomizing sterilization device Download PDF

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Publication number
CN111407913A
CN111407913A CN202010340517.0A CN202010340517A CN111407913A CN 111407913 A CN111407913 A CN 111407913A CN 202010340517 A CN202010340517 A CN 202010340517A CN 111407913 A CN111407913 A CN 111407913A
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CN
China
Prior art keywords
atomizing
portable
atomization
pipe
spray head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010340517.0A
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Chinese (zh)
Inventor
赵雨顺
李琼
赵文锦
张敏
刘芳明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Lidu Environmental Protection Science & Technology Co ltd
Original Assignee
Shanghai Lidu Environmental Protection Science & Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Shanghai Lidu Environmental Protection Science & Technology Co ltd filed Critical Shanghai Lidu Environmental Protection Science & Technology Co ltd
Priority to CN202010340517.0A priority Critical patent/CN111407913A/en
Publication of CN111407913A publication Critical patent/CN111407913A/en
Pending legal-status Critical Current

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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
    • A61L2/16Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/22Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
    • 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
    • A61L2/08Radiation
    • A61L2/10Ultraviolet radiation
    • 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
    • A61L2202/10Apparatus features
    • A61L2202/16Mobile applications, e.g. portable devices, trailers, devices mounted on vehicles

Landscapes

  • 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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Special Spraying Apparatus (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

The invention provides a portable atomizing and sterilizing device, which comprises an upper cover, an atomizing spray head and a kettle body, wherein the atomizing spray head is arranged above the kettle body through a fixing device, the upper cover is buckled above the kettle body to cover the atomizing spray head, the shell comprises a base, a storage battery, a solar cell panel, a disinfectant storage chamber and an ultrasonic atomizing device, a position induction sensor is arranged on the inner wall of the shell, the storage battery is arranged above the base, the disinfectant storage chamber is arranged above the storage battery, the ultrasonic atomizing device is arranged above the disinfectant storage chamber, a disassembly port is arranged between the disinfectant storage chamber and the ultrasonic atomizing device, a conduit of the ultrasonic atomizing device extends to the disinfectant storage chamber, the disinfectant storage chamber is a replaceable device, the solar cell panel is arranged on the four walls of the shell, and a coil is wound between the solar cell panel and the disinfectant storage chamber, a charging port is formed in the base.

Description

Portable atomizing sterilization device
Technical Field
The invention relates to the technical field of sterilizing devices, in particular to a portable atomization sterilizing device.
Background
The atomizer is an important part of an atomization system, and the performance of the atomizer has a significant influence on the precision of measurement, chemical interference and the like. Therefore, the atomizer is required to have stable spraying, fine and uniform droplets, and high atomization efficiency. Atomization generally refers to the operation of dispersing a liquid into fine droplets through a nozzle using a high velocity gas stream. Generally, the plurality of discrete droplets being atomized are capable of trapping particulate matter in the gas. The liquid atomization method generally includes pressure atomization, rotary disc atomization, gas atomization, sound wave atomization and the like, and atomization can change liquid into small droplets through a special device and spray the droplets in a mist shape.Ultrasonic atomizationThe fundamental principle of the technology applied to medical treatment is that the oscillation signal from the main circuit board is powered by high powerTriode transistorThe ultrasonic energy can atomize the water-soluble medicine into micro fog particles of 1um to 5um at normal temperature, water is used as a medium, the water-soluble medicine liquid is atomized by utilizing ultrasonic directional pressure, the medicine liquid is sprayed into an air passage of a patient by virtue of the wind power of an internal fan, and then the medicine liquid is inhaled by the patient and directly acts on a focus.
For example, chinese patent application No.:CN201020521535.0the utility model discloses a portable spraying sterilization disinfection cleaner, it includes water storage tank (1), electrolysis trough (2) with this water storage tank pipe connection, atomizing nozzle (5) with this electrolysis trough pipe connection, order about rivers in water storage tank (1) and through atomizing nozzle (5) spun suction pump (3) through electrolysis trough (2), drive circuit (6) and power (7) that are connected with drive circuit that are connected with this suction pump (3), locate high voltage generator (4) on atomizing nozzle (5) inlet channel. The utility model discloses with the whole disinfection that is used for disinfecting of brineelectrolysis, make full use of the water resource, production efficiency is high moreover, the utility model discloses equipment can miniaturation production. The utility model also adopts the mode of secondary sterilization and disinfection, has extremely strong killing power to the microorganisms such as bacteria, mycete, virus and the like, and has no pollution to the environment。
The above structure has the problems that the sterilization and disinfection device can not be carried about and the disinfection solution needs to be added again after being used up.
Disclosure of Invention
In order to solve the problems that the sterilization and disinfection device in the prior art can not be carried about and the disinfectant needs to be added again after being used up, the invention provides a portable atomization sterilization device.
The invention discloses a portable atomizing and sterilizing device, which comprises an upper cover, an atomizing spray head and a kettle body, wherein the atomizing spray head is arranged above the kettle body through a fixing device, the upper cover is buckled above the kettle body to cover the atomizing spray head, the shell comprises a base, a storage battery, a solar cell panel, a disinfectant storage chamber and an ultrasonic atomizing device, a position induction sensor is arranged on the inner wall of the shell, the storage battery is arranged above the base, the disinfectant storage chamber is arranged above the storage battery, the ultrasonic atomizing device is arranged above the disinfectant storage chamber, a disassembly port is arranged between the disinfectant storage chamber and the ultrasonic atomizing device, a conduit of the ultrasonic atomizing device extends to the disinfectant storage chamber, the disinfectant storage chamber is a replaceable device, the solar cell panel is arranged on the four walls of the shell, and a coil is wound between the solar cell panel and the disinfectant storage chamber, a charging port is formed in the base; the utility model discloses an ultrasonic atomization device, including atomizer shell, connecting block, pipe, spring, play fog pipe and play fog mouth, set up a draw-in groove in the atomizer shell, the connecting block card is in the draw-in groove, the spring mounting is in on the connecting block, the connecting block is connected the pipe, the pipe extends to antiseptic solution apotheca, the diameter of connecting block is less than the pipe, set up a fog mouth on the atomizer, go out the fog pipe upper end and connect go out the fog mouth, it extends to go out the fog pipe lower extreme ultrasonic atomization device, it is sterilamp all around to go out the fog mouth.
On this basis, the solar cell panel is connected with the storage battery.
On the basis, the control system of the portable atomization sterilization device comprises an automatic induction module, a timing module and a starting module, wherein the automatic induction module is used for monitoring the position relation between the upper cover and the kettle body, the timing module is used for timed atomization and disinfection, and the starting module is used for starting the portable atomization sterilization device and power-off protection after disinfectant is used.
On the basis, the portable atomizing sterilization device is a cylinder with the diameter of 3cm and the height of 12 cm.
On the basis, the atomizing nozzle can rotate 360 degrees.
Compared with the prior art, the invention has the beneficial effects that:
(1) the portable atomization sterilization device has the advantages that the disinfectant storage chamber can be replaced, and the disinfectant can be replaced after being used up, so that the process of adding the disinfectant is omitted.
(2) According to the portable atomization sterilization device, the charging port is charged firstly, and the solar cell panel continues to provide electric energy when the portable atomization sterilization device is used, so that the portable atomization sterilization device can be used for a long time.
(3) The portable atomization sterilization device comprises a shell, wherein a position sensing sensor is arranged on the inner wall of the shell, the position state between an upper cover and the shell is monitored, and the device is started after the upper cover is separated from the shell.
(4) The portable atomization sterilization device is a cylinder with the diameter of 3cm and the height of 12cm, is small in size and convenient to carry.
(5) According to the portable atomization sterilization device, the coil is wound outside the disinfectant storage chamber, electromagnetic adsorption is adopted after the power is on, and the disinfectant can be taken out after automatic power failure after being used up.
Drawings
FIG. 1 is a schematic front view of the portable atomizing sterilizer of the present invention;
FIG. 2 is a schematic view of the structure of the atomizing nozzle of the portable atomizing sterilizer of the present invention
Wherein: 1. charging port, 2, solar cell panel, 3, ultrasonic atomization device, 4, position induction sensor, 5, connecting block, 6, clamping groove, 7, atomizing nozzle, 8, upper cover, 9, ultraviolet germicidal lamp, 10, fog outlet, 11, fixing device, 12, spring, 13, fog outlet pipe, 14, disassembly port, 15, coil, 16, disinfectant storage chamber, 17, storage battery, 18, base, 19, pipe, 20, nozzle shell, 21, conduit
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention discloses a portable atomizing and sterilizing device, which comprises an upper cover 8, an atomizing spray head 7 and a kettle body, wherein the atomizing spray head 7 is arranged above the kettle body through a fixing device 11, the upper cover 8 is buckled above the kettle body to cover the atomizing spray head 7,
the shell comprises a base 18, a storage battery 17, a solar cell panel 2, a disinfectant storage chamber 16 and an ultrasonic atomization device 3, a position induction sensor 4 is arranged on the inner wall of the shell, a storage battery 17 is arranged above the base 18, a disinfectant storage chamber 16 is arranged above the storage battery 17, an ultrasonic atomization device 3 is arranged above the disinfectant storage chamber 16, a disassembly port 14 is arranged between the disinfectant storing chamber 16 and the ultrasonic atomizing device 3, a conduit 21 of the ultrasonic atomizing device 3 extends to the disinfectant storing chamber 16, the disinfectant storing chamber 16 is a replaceable device, the solar panels 2 are arranged on the four walls of the shell, a coil 15 is wound between the solar cell panel 2 and the disinfectant storage chamber 16, a magnetic field is generated after the solar cell panel and the disinfectant storage chamber are electrified, electromagnetic adsorption ensures that the disinfectant storage chamber is firmly installed, and a charging port 1 is formed in the base 18;
referring to fig. 2, the atomizing nozzle 7 includes a nozzle housing 20, a connecting block 5, a pipe 19, a spring 12, a mist outlet pipe 13 and a mist outlet 10, a slot 6 is formed in the nozzle housing 20, the connecting block 5 is clamped in the slot 6, the spring 12 is mounted on the connecting block 5, the connecting block 5 is connected to the pipe 19, the pipe 19 extends to the disinfectant storing chamber 16, the diameter of the connecting block 5 is smaller than that of the pipe 19 to ensure firm connection,
the atomizing nozzle is provided with a mist outlet 10, the upper end of the mist outlet pipe 13 is connected with the mist outlet 10, the lower end of the mist outlet pipe 13 extends to the ultrasonic atomizing device 3, the periphery of the mist outlet 10 is provided with ultraviolet sterilizing lamps 9, and secondary disinfection is carried out by utilizing the ultraviolet sterilizing lamps.
In the present embodiment, the solar cell panel 2 is connected to the battery 17 as a preferred embodiment of the invention.
As a preferred embodiment of the invention, in this embodiment, the control system of the portable atomizing and sterilizing device includes an automatic sensing module, a timing module and a starting module, the automatic sensing module is used for monitoring a position relationship between the upper cover 8 and the kettle body, the device is started when the upper cover is separated from the housing, the timing module is used for timing atomizing and sterilizing, and the starting module is used for starting the portable atomizing and sterilizing device, performing power-off protection after a disinfectant is used up, and ensuring safety.
As a preferable embodiment of the invention, in this embodiment, the portable atomization sterilization device is a cylinder with a diameter of 3cm and a height of 13cm, and is small in size and convenient to carry.
In the preferred embodiment of the invention, the atomizing nozzle 7 can rotate 360 degrees, and can perform atomizing disinfection in any direction.
In the in-service use process, earlier charge the battery through the mouth that charges, during the use, pluck atomizing sterilizing equipment's lid, position-sensing sensor monitors the lid and breaks away from with the casing this moment, the device starts, it is regularly carried out by timing module, start after 5 seconds at the upper cover breaks away from the casing, in order to prevent that the direction of atomizer is incorrect, the battery begins the power supply after the start, press the shower nozzle shell of atomizer, the connecting block supports the shower nozzle shell, the spring is increased pressure in being extruded back for the casing, loosen atomizer, antiseptic solution in the antiseptic solution storage chamber upwards through the pipe under the effect of pressure, get into ultrasonic atomization device, spout from the export through going out the fog pipe after ultrasonic atomization device atomizes, export sterilamp all around carries out secondary disinfection, guarantee sterile quality. After the disinfectant is used up, the upper half part of the shell is rotated, the atomization sterilization device is disassembled from the disassembly port, a gap is reserved between the disinfectant storage chamber and the storage battery, a coil is wound outside the disinfectant storage chamber, a magnetic field can be generated after the disinfectant storage chamber is electrified, the disinfectant storage chamber is adsorbed in the shell through electromagnetism, the device starts automatic power-off protection after the disinfectant is used up, the used and replaced disinfectant storage chamber is taken out and put in, the disinfection device can be continuously used after being closed after being rotated, the existing atomization sterilization device is large in size and not convenient to carry, a cylinder with the diameter of 3cm and the height of 13cm is adopted, and the atomization sterilization device is simple in structure, reasonable in layout and.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. A portable atomizing sterilization device is characterized in that: comprises an upper cover (8), an atomizing spray head (7) and a kettle body, wherein the atomizing spray head (7) is arranged above the kettle body through a fixing device (11), the upper cover (8) is buckled above the kettle body and covers the atomizing spray head (7),
the casing includes base (18), battery (17), solar cell panel (2), antiseptic solution apotheca (16) and ultrasonic atomization device (3), an inner wall of the housing installs a position inductive sensor (4), base (18) top installation battery (17), antiseptic solution apotheca (16) are installed to battery (17) top, ultrasonic atomization device (3) are installed to antiseptic solution apotheca (16) top, antiseptic solution apotheca (16) with for dismantling mouthful (14) between ultrasonic atomization device (3), pipe (21) of ultrasonic atomization device (3) extend to antiseptic solution apotheca (16), antiseptic solution apotheca (16) are replaceable device, casing wall installation solar cell panel (2) all around, solar cell panel (2) with twine coil (15) between antiseptic solution apotheca (16), a charging port (1) is formed in the base (18);
the atomizing spray head (7) comprises a spray head shell (20), a connecting block (5), a pipe (19), a spring (12), a mist outlet pipe (13) and a mist outlet (10), a clamping groove (6) is formed in the spray head shell (20), the connecting block (5) is clamped in the clamping groove (6), the spring (12) is installed on the connecting block (5), the connecting block (5) is connected with the pipe (19), the pipe (19) extends to the disinfectant storage chamber (16), the diameter of the connecting block (5) is smaller than that of the pipe (19),
the ultrasonic atomization device is characterized in that the atomization nozzle is provided with a mist outlet (10), the upper end of the mist outlet pipe (13) is connected with the mist outlet (10), the lower end of the mist outlet pipe (13) extends to the ultrasonic atomization device (3), and the periphery of the mist outlet (10) is provided with ultraviolet sterilization lamps (9).
2. The portable atomizing sterilization device according to claim, wherein: the solar cell panel (2) is connected with the storage battery (17).
3. The portable atomizing sterilization device according to claim, wherein: the control system of the portable atomization sterilization device comprises an automatic induction module, a timing module and a starting module,
the automatic induction module is used for monitoring the position relation between the upper cover (8) and the kettle body,
the timing module is used for timing atomization disinfection,
the starting module is used for starting the portable atomization sterilizing device and performing power-off protection after the disinfectant is used.
4. The portable atomizing sterilization device according to claim, wherein: the portable atomization sterilization device is a cylinder with the diameter of 3cm and the height of 13 cm.
5. The portable atomizing sterilization device according to claim, wherein: the atomizing nozzle (7) can rotate 360 degrees.
CN202010340517.0A 2020-04-26 2020-04-26 Portable atomizing sterilization device Pending CN111407913A (en)

Priority Applications (1)

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CN202010340517.0A CN111407913A (en) 2020-04-26 2020-04-26 Portable atomizing sterilization device

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Application Number Priority Date Filing Date Title
CN202010340517.0A CN111407913A (en) 2020-04-26 2020-04-26 Portable atomizing sterilization device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102297150B1 (en) * 2021-02-19 2021-09-02 남용일 Apparatus for sterilization

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2098901U (en) * 1991-07-02 1992-03-18 钮云超 Hand cleaning device with auto-sterilization function
CN1509213A (en) * 2001-04-13 2004-06-30 Լ��ѷ Automatic cleansing sprayer
CN201586610U (en) * 2009-11-25 2010-09-22 温锦华 Ultrasonic atomizer
JP2016120474A (en) * 2014-12-25 2016-07-07 株式会社トーメーポート Chlorine slow-releasing device and method for producing weak acidic hypochlorite water by using the same, and simple deodorizing-sterilizing apparatus
CN206882006U (en) * 2017-06-05 2018-01-16 宁波庭美园艺工具有限公司 A kind of multifunctional motor-driven watering can
CN108557336A (en) * 2018-05-22 2018-09-21 叶呈富 Dustbin with spraying device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2098901U (en) * 1991-07-02 1992-03-18 钮云超 Hand cleaning device with auto-sterilization function
CN1509213A (en) * 2001-04-13 2004-06-30 Լ��ѷ Automatic cleansing sprayer
CN201586610U (en) * 2009-11-25 2010-09-22 温锦华 Ultrasonic atomizer
JP2016120474A (en) * 2014-12-25 2016-07-07 株式会社トーメーポート Chlorine slow-releasing device and method for producing weak acidic hypochlorite water by using the same, and simple deodorizing-sterilizing apparatus
CN206882006U (en) * 2017-06-05 2018-01-16 宁波庭美园艺工具有限公司 A kind of multifunctional motor-driven watering can
CN108557336A (en) * 2018-05-22 2018-09-21 叶呈富 Dustbin with spraying device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张明文: "《工业机器人技术基础及应用》", 31 July 2017, 哈尔滨工业大学出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102297150B1 (en) * 2021-02-19 2021-09-02 남용일 Apparatus for sterilization

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