CN111422715A - Elevator disinfection and sterilization device and system - Google Patents

Elevator disinfection and sterilization device and system Download PDF

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Publication number
CN111422715A
CN111422715A CN202010166367.6A CN202010166367A CN111422715A CN 111422715 A CN111422715 A CN 111422715A CN 202010166367 A CN202010166367 A CN 202010166367A CN 111422715 A CN111422715 A CN 111422715A
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CN
China
Prior art keywords
elevator
disinfection
light source
ultraviolet light
titanium dioxide
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
CN202010166367.6A
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Chinese (zh)
Inventor
王清泉
杨惠敏
陈大灵
宁增明
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Shenzhen Alfeye Technoligy Co ltd
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Shenzhen Alfeye Technoligy Co ltd
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Publication date
Application filed by Shenzhen Alfeye Technoligy Co ltd filed Critical Shenzhen Alfeye Technoligy Co ltd
Priority to CN202010166367.6A priority Critical patent/CN111422715A/en
Publication of CN111422715A publication Critical patent/CN111422715A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/46—Adaptations of switches or switchgear
    • B66B1/50—Adaptations of switches or switchgear with operating or control mechanisms mounted in the car or cage or in the lift well or hoistway
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/088—Radiation using a photocatalyst or photosensitiser
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/24—Apparatus using programmed or automatic operation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/22—Ionisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/46—Adaptations of switches or switchgear
    • B66B1/468—Call registering systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/06—Polluted air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/804—UV light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B2201/00—Aspects of control systems of elevators
    • B66B2201/40—Details of the change of control mode
    • B66B2201/46—Switches or switchgear
    • B66B2201/4607—Call registering systems
    • B66B2201/463—Wherein the call is registered through physical contact with the elevator system

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Epidemiology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

The invention discloses a disinfection and sterilization device and a system for an elevator, wherein the device comprises: the elevator comprises a double-machine ion generator, an ultraviolet light source and a titanium dioxide key coating film, wherein the double-machine ion generator is installed in an elevator car, the titanium dioxide key coating film is coated on an elevator operation panel, and the ultraviolet light source can irradiate the titanium dioxide key coating film. According to the invention, air in the lift car is purified by the double-machine ion generator, the titanium dioxide key coating film is plated on the elevator operation panel, the ultraviolet light source irradiates the titanium dioxide key coating film, and the titanium dioxide coating film generates radicals with high catalytic activity under the irradiation of the ultraviolet light source, so that strong photooxidation and reduction capability can be generated, and the effects of disinfection and sterilization are achieved.

Description

Elevator disinfection and sterilization device and system
Technical Field
The invention relates to the technical field of elevator accessories, in particular to an elevator disinfection device and system.
Background
The elevator car has small space, poor circulation and large flow, is easy to cause disease transmission in the season of high infectious diseases such as influenza and the like, and needs to be disinfected regularly.
In addition, the surface of the elevator button has higher bacterial colonization rate than the surface of a washroom, potential transmission risks of pathogens do exist on the elevator button of a hospital, and the existing elevator disinfection and sterilization mode mainly depends on manual work, so that the workload is large and the efficiency is not high, and therefore, an elevator disinfection and sterilization device needs to be invented to solve the problems.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an elevator disinfection and sterilization device which can effectively remove bacteria remained on an elevator operation panel.
The invention further provides an elevator disinfection and sterilization system.
In a first aspect, an embodiment of the present invention provides an elevator disinfection and sterilization device: the method comprises the following steps: the elevator comprises a double-machine ion generator, an ultraviolet light source and a titanium dioxide key coating film, wherein the double-machine ion generator is installed in an elevator car, the titanium dioxide key coating film is coated on an elevator operation panel, and the ultraviolet light source can irradiate the titanium dioxide key coating film.
The ultraviolet light source is characterized by further comprising an aluminum alloy reflecting cover, wherein the aluminum alloy reflecting cover is arranged on the outer side of the ultraviolet light source.
The ultraviolet lamp also comprises a main control module, wherein the main control module is connected with the ultraviolet light source and used for controlling the ultraviolet light source to be turned on or turned off, and the main control module is connected with the dual-motor ion generator and used for controlling the dual-motor ion generator to be turned on or turned off.
Further, still include distance sensor, distance sensor with the master control module is connected.
Further, the intelligent terminal also comprises a communication module, and the communication module is connected with the main control module.
Further, the communication module comprises a Bluetooth communication unit, a WiFi communication unit or an NB-IOT communication unit.
Furthermore, the intelligent control system also comprises a display screen, and the display screen is connected with the main control module.
Further, the temperature and humidity sensor is further included, and the temperature and humidity sensor is also connected with the main control module.
In a second aspect, an embodiment of the invention provides an elevator disinfection and sterilization system, which comprises a server, a control terminal and one or more elevator disinfection and sterilization devices, wherein the server is connected with the control terminal through a network, and the elevator disinfection and sterilization devices are connected with the server through the network.
Further, the control terminal comprises a mobile phone or a computer.
The elevator disinfection and sterilization device provided by the embodiment of the invention at least has the following beneficial effects: air in the lift car is purified through the double-machine ion generator, the titanium dioxide key coating film is plated on the elevator operation panel, the titanium dioxide key coating film is irradiated by the ultraviolet light source, the titanium dioxide coating film generates free radicals with high catalytic activity under the irradiation of the ultraviolet light source, very strong photooxidation and reduction capacity can be generated, and the effects of disinfection and sterilization are achieved.
Drawings
Fig. 1 is a schematic view of an elevator disinfection and sterilization device in an embodiment of the invention in a use state;
FIG. 2 is a block diagram of a disinfection device for an elevator according to an embodiment of the present invention;
fig. 3 is a system block diagram of an embodiment of an elevator disinfection system in an embodiment of the invention.
Detailed Description
The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
In the description of the present invention, if an orientation description is referred to, for example, the orientations or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. If a feature is referred to as being "disposed," "secured," "connected," or "mounted" to another feature, it can be directly disposed, secured, or connected to the other feature or indirectly disposed, secured, connected, or mounted to the other feature.
In the description of the embodiments of the present invention, if "a number" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "greater than", "lower" or "inner" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.
The embodiment of the invention discloses an elevator disinfection and sterilization device, which comprises: the elevator comprises a double-machine ion generator, an ultraviolet light source and a titanium dioxide key coating film, wherein the double-machine ion generator is installed in an elevator car, the titanium dioxide key coating film is coated on an elevator operation panel, and the ultraviolet light source can irradiate the titanium dioxide key coating film.
Referring to fig. 1, a dual-motor ionizer 101 is disposed in an elevator car 100, and when a low voltage is boosted by the dual-motor ionizer, air is ionized under the action of a positive high-voltage electric field and a negative high-voltage electric field to generate a large amount of positive ions and negative ions. The positive and negative oxygen ions dispersed into the air can attract each other in pairs, and the current can be generated in the electrolyte in the cells when meeting with the planktonic bacteria in the air in the mutual attraction process, so that the killing effect on the planktonic bacteria is achieved. The floating dust in the air can generate a coagulation phenomenon after encountering polar ions, the mass of particles is increased, the particles are accelerated to settle, and the charged particles can be attached to a grounding electrode when encountering fields such as the ground, the surface and the like with zero potential in the air moving process, so that the floating dust is converted into dust fall, and the inhalable particles in the air are reduced. Because the oxidizing power of the ionic oxygen molecules with positive and negative polarities is greater than that of neutral oxygen molecules and the momentum of the positive and negative polarities in the mutual attraction process greatly improves the oxidizing and decomposing power of the ionic oxygen molecules with positive and negative polarities, the effect of efficiently decomposing TVOC (volatile organic compound) such as formaldehyde, benzene series, ammonia and the like and other gaseous organic volatile matters can be achieved, and the peculiar smell is eliminated.
In the present embodiment, a bipolar asymmetric ion generator is used to generate a negative high voltage electric field larger than a positive high voltage electric field, so that the amount of generated negative ions is always larger than that of positive ions. After the neutralization reaction, the redundant negative ions still exist in the air, so that the purposes of dust removal, smoke elimination and peculiar smell removal can be achieved, and the quality of the air is improved.
The ultraviolet light source destroys the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in the cells of the microorganism body by using ultraviolet rays with proper wavelength, leads to the death of growing cells and/or regenerative cells, and achieves the effects of sterilization and disinfection. The ultraviolet disinfection technology is suitable for disinfection of indoor air, object surfaces, water and other liquids.
The titanium dioxide key coating film has the characteristics of strong photocatalysis, antibiosis, mildew prevention, pollution resistance, self cleaning, good film forming property, smooth film forming, strong chemical combination adsorptivity, high surface activity and the like, is safe and nontoxic to a human body, and has no irritation to skin.
In the embodiment, the titanium dioxide key coating film activates titanium dioxide under the action of ultraviolet rays in sunlight or lamplight to generate radicals with high catalytic activity, can generate strong photooxidation and reduction capability, and can catalyze and photolyze various organic matters and partial inorganic matters attached to the surface of the elevator operation panel key. Because of the characteristics of the electronic structure of the titanium dioxide, superoxide anion free radicals and hydroxyl free radicals with strong chemical activity are generated when the titanium dioxide is exposed to light, and attack organic matters to achieve the effect of degrading organic pollutants. When the titanium dioxide meets the bacteria, the titanium dioxide directly attacks the cells of the bacteria, so that organic matters in the cells of the bacteria are degraded, the bacteria are killed and decomposed, and the sterilization effect is achieved.
In another embodiment, still include the aluminum alloy reflector, titanium dioxide button coating film is plated on elevator operating panel, and the ultraviolet light source outside is arranged in to the aluminum alloy reflector, and the aluminum alloy reflector is the highest to ultraviolet reflectivity, through the use of aluminum alloy reflector, can assemble ultraviolet lamp light to operating panel button in, can improve the disinfection time, also can avoid ultraviolet lamp to directly shine the injury that the eyes caused.
Referring to fig. 2, a block diagram of a module of an embodiment of an elevator disinfection apparatus in the embodiment of the present invention is shown, and the elevator disinfection apparatus includes a main control module, a communication module, a distance sensor, a temperature and humidity sensor, and a display screen, where the main control module is connected to the ultraviolet light source and the dual-machine ion generator respectively, and is used to control the on and off of the ultraviolet light source and the dual-machine ion generator, and the main control module may adopt a general-purpose single chip or an ARM processor, which is not limited herein. The communication module is connected with the main control module and comprises a Bluetooth communication unit or a WiFi communication unit or an NB-IOT communication unit, the communication module can remotely control the on-off of a dual-motor ion generator, an ultraviolet light source, a temperature and humidity sensor and a display screen in the elevator disinfection and sterilization device, the field regulation and control are reduced, the efficiency of workers is improved, the working state of the elevator disinfection and sterilization device can be remotely monitored through the remote communication module, and faults can be conveniently found in time.
In the embodiment, a temperature and humidity sensor is further arranged and connected with the main control module and used for detecting the ambient temperature and humidity in the elevator, the temperature and humidity change has certain influence on the ultraviolet disinfection efficiency, the disinfection time needs to be changed along with the change under different temperature and humidity environments, the optimal disinfection time is calculated by collecting the temperature and humidity in the elevator, the better disinfection effect is achieved, and meanwhile, the temperature and humidity information can be displayed through a display screen to be referred to elevator passengers.
In the embodiment, the elevator control system further comprises a distance sensor, the distance sensor is connected with the main control module, and when a person enters the elevator, the main control module can control the ultraviolet light source to be turned off according to signals sent by the distance sensor. The ultraviolet disinfection and sterilization mainly comprises electromagnetic waves in a short wave range of 240 plus 280nm, certain damage can be caused to the skin and eyes of a human body, an automatic ultraviolet disinfection and sterilization stopping function is set when a person approaches, and the distance sensor can be an infrared sensor, an ultrasonic distance measuring sensor or a wireless microwave distance measuring sensor without limitation.
Referring to fig. 3, the embodiment of the invention also discloses an elevator disinfection and sterilization system, which comprises a server, a control terminal and one or more elevator disinfection and sterilization devices, wherein the server is connected with the control terminal through a network, the elevator disinfection and sterilization devices are connected with the server through the network, specifically, the control terminal comprises a mobile phone or a computer or a tablet personal computer, and the elevator disinfection and sterilization devices can be conveniently and remotely controlled through the control terminal without field operation.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Claims (10)

1. An elevator disinfection and sterilization device, characterized by comprising: the elevator comprises a double-machine ion generator, an ultraviolet light source and a titanium dioxide key coating film, wherein the double-machine ion generator is installed in an elevator car, the titanium dioxide key coating film is coated on an elevator operation panel, and the ultraviolet light source can irradiate the titanium dioxide key coating film.
2. The elevator disinfection apparatus of claim 1, further comprising an aluminum alloy reflector disposed outside the ultraviolet light source.
3. The elevator disinfection device according to claim 1, further comprising a main control module, wherein the main control module is connected to the ultraviolet light source for controlling the ultraviolet light source to be turned on or off, and the main control module is connected to the dual-motor ion generator for controlling the dual-motor ion generator to be turned on or off.
4. The elevator disinfection and sterilization device of claim 3, further comprising a distance sensor, wherein the distance sensor is connected with the main control module.
5. The elevator disinfection and sterilization device of claim 3, further comprising a communication module, wherein the communication module is connected with the main control module.
6. The elevator disinfection apparatus of claim 5, wherein the communication module comprises a Bluetooth communication unit, a WiFi communication unit, or an NB-IOT communication unit.
7. The elevator disinfection and sterilization device of claim 3, further comprising a display screen, wherein the display screen is connected with the main control module.
8. The elevator disinfection and sterilization device of claim 6, further comprising a temperature and humidity sensor, wherein the temperature and humidity sensor is also connected with the main control module.
9. An elevator disinfection system, comprising a server, a control terminal, and one or more elevator disinfection devices of any one of claims 5 to 8, wherein the server is connected with the control terminal through a network, and the elevator disinfection device is connected with the server through a network.
10. The elevator disinfection system of claim 9, wherein the control terminal comprises a mobile phone or a computer.
CN202010166367.6A 2020-03-11 2020-03-11 Elevator disinfection and sterilization device and system Pending CN111422715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010166367.6A CN111422715A (en) 2020-03-11 2020-03-11 Elevator disinfection and sterilization device and system

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Application Number Priority Date Filing Date Title
CN202010166367.6A CN111422715A (en) 2020-03-11 2020-03-11 Elevator disinfection and sterilization device and system

Publications (1)

Publication Number Publication Date
CN111422715A true CN111422715A (en) 2020-07-17

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CN202010166367.6A Pending CN111422715A (en) 2020-03-11 2020-03-11 Elevator disinfection and sterilization device and system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202000023905A1 (en) * 2020-10-12 2022-04-12 Rosa Micro S R L CABIN FOR ELEVATORS AND FORWARD ELEVATORS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202000023905A1 (en) * 2020-10-12 2022-04-12 Rosa Micro S R L CABIN FOR ELEVATORS AND FORWARD ELEVATORS

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