CN111792506A - Handrail area sterilization apparatus and have its automatic escalator or moving walk - Google Patents

Handrail area sterilization apparatus and have its automatic escalator or moving walk Download PDF

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Publication number
CN111792506A
CN111792506A CN202010755181.4A CN202010755181A CN111792506A CN 111792506 A CN111792506 A CN 111792506A CN 202010755181 A CN202010755181 A CN 202010755181A CN 111792506 A CN111792506 A CN 111792506A
Authority
CN
China
Prior art keywords
sterilization
plate
handrail
lamp
lamp holder
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
CN202010755181.4A
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Chinese (zh)
Inventor
范网林
李春福
孙世昌
应书勇
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SJEC Corp
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SJEC Corp
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.)
Filing date
Publication date
Application filed by SJEC Corp filed Critical SJEC Corp
Priority to CN202010755181.4A priority Critical patent/CN111792506A/en
Publication of CN111792506A publication Critical patent/CN111792506A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B31/00—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning
    • B66B31/02—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning for handrails
    • 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
    • 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
    • A61L2/26—Accessories or devices or components used for biocidal treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/22—Balustrades
    • B66B23/24—Handrails

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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)
  • Escalators And Moving Walkways (AREA)

Abstract

The invention discloses a sterilization device suitable for a hand strap of an escalator or a moving sidewalk, which comprises a first sterilization component and a second sterilization component, wherein the first sterilization component is arranged corresponding to the inner surface of the hand strap, the second sterilization component is arranged corresponding to the outer surface of the hand strap, the first sterilization component and the second sterilization component respectively comprise a light-gathering cover and a sterilization lamp arranged on the light-gathering cover, the light-gathering cover comprises a bottom plate and a side plate, the side plate extends towards the hand strap from the bottom plate, the sterilization lamp is arranged on the bottom plate, one side of the side plate, close to the hand strap, is provided with a bent plate, and the bent plate is used for reflecting light emitted by the sterilization lamp to the side surface. According to the sterilization device suitable for the handrail belt of the escalator or the moving sidewalk, two groups of sterilization components are arranged on the upper surface and the lower surface of the handrail belt, so that the sterilization of the inner surface and the outer surface of the handrail belt is realized, and the side plates are provided with the bent plates, so that the sterilization of the side surfaces of the handrail belt is realized, the sterilization device can realize more sufficient sterilization and disinfection of the handrail belt, and the hidden danger is reduced.

Description

Handrail area sterilization apparatus and have its automatic escalator or moving walk
Technical Field
The invention relates to the field of escalators or moving sidewalks, in particular to a sterilization device suitable for an escalator or a moving sidewalk handrail belt and the escalator or the moving sidewalk comprising the sterilization device.
Background
The escalator or the moving sidewalk is used as a part of a public place, and a main component which is likely to contact with a user and brings a virus propagation risk is a handrail belt in the using process, so that how to keep the handrail to kill viruses which are likely to be infected on the handrail at any time in the using process becomes a problem which needs to be solved urgently by the current user.
At present, the hand straps in public places are generally disinfected by manually wiping disinfectant, so that time and labor are wasted, long interval time is reserved for each disinfection and sterilization operation, and the risk of blocking the virus from spreading through the hand straps cannot be guaranteed.
For such defects, as in application No. 201520113855.5, entitled: the utility model provides an adopt ultraviolet ray to carry out the self-sterilizer to the handrail area in the utility model patent of handrail area automatic disinfection device, but the technical scheme who discloses in this patent can only disinfect to the partial surface of handrail area, can't disinfect and sterilize to the side surface of handrail area and the internal surface of handrail area, does not realize abundant disinfection and sterilization, has great hidden danger.
Disclosure of Invention
In view of the above, in order to solve the problems in the prior art, the present invention provides an improved sterilizing device for a handrail of an escalator or a moving sidewalk, which can more fully sterilize the handrail.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a sterilization apparatus suitable for automatic escalator or moving walk handrail area, is including the first sterilization subassembly that corresponds handrail in-band surface setting and the second sterilization subassembly that corresponds handrail surface setting, first sterilization subassembly and second sterilization subassembly all include the snoot and install sterilamp on the snoot, the snoot include the bottom plate and by the curb plate that the bottom plate extends towards the handrail area, sterilamp installs on the bottom plate, one side that the curb plate is close to the handrail area has the board of bending, bend the board be used for with the light reflection that the sterilamp sent to the side of handrail area.
The first sterilization assembly is used for sterilizing and disinfecting the inner surface and the side surface of the handrail belt, and the second sterilization assembly is used for sterilizing and disinfecting the outer surface and the side surface of the handrail belt. The first sterilization assembly comprises a first sterilization lamp and a first light gathering cover, and the second sterilization assembly comprises a second sterilization lamp and a second light gathering cover. The two groups of sterilization components are arranged on the upper surface and the lower surface of the handrail belt, so that the sterilization of the inner surface and the outer surface of the handrail belt is realized, and the bending plate is arranged on the side plate, so that the sterilization device can realize more sufficient sterilization and disinfection of the handrail belt, and the hidden danger is reduced.
According to some preferred aspects of the invention, the sterilizing lamp comprises a lamp holder and a lamp tube, and the light-gathering cover is provided with a clamping seat for fixing the lamp holder. Through the fixed lamp stand of cassette buckle formula, make things convenient for the installation and the change maintenance of sterilamp, raise the efficiency.
According to some preferred aspects of the invention, the base portion of the lamp holder has a projection projecting outward in a longitudinal direction, the socket has a gripping portion engaged with the projection, and the base portion of the lamp holder is accommodated between the gripping portion and the base portion of the socket. Through setting up lug and clamping part, conveniently fix and dismantle lamp stand and cassette.
According to some preferred aspects of the invention, the distance between the two clamping parts is smaller than the width between the two protrusions on two sides so as to fix the lamp holder on the clamping seat without falling off.
According to some preferred aspects of the invention, the bottom of the cartridge is provided with a protrusion protruding toward the germicidal lamp. The convex part is used for enabling the clamping seat to form a form similar to a spring piece, two clamping parts are conveniently opened when the lamp holder is installed, so that the lamp holder enters the clamping seat, and after the lamp holder enters the clamping seat, the clamping parts fix the lamp holder. And when the lamp holder presses the convex part, the distance between the two clamping parts is reduced, and the lamp holder is more stably fixed.
According to some preferred aspects of the invention, at least two convex parts are arranged on the bottom of the clamping seat, and the distance between the adjacent convex parts is smaller than the width of the bottom of the lamp holder.
According to some preferable aspects of the invention, the included angle between the side plate and the bottom plate is 30-80 degrees, and the included angle between the bending plate and the side plate is 5-60 degrees, so that light can be more sufficiently focused on the handrail belt. Preferably, the included angle between the bending plate and the horizontal plane is 30-90 degrees, so that more light can irradiate the side face of the handrail belt.
In some embodiments of the present invention, the side surface of the handrail belt is configured in an arc shape, an included angle between a perpendicular line formed between the top ends of the bent plates and the arc surface and the vertical direction is 45 ° to 75 °, preferably 60 °, and an included angle between the top ends of the two bent plates and the perpendicular line formed between the arc surface is 60 °, such a configuration enables more light to be irradiated on the side surface of the handrail belt, thereby achieving more sufficient sterilization.
According to some preferred aspects of the invention, the first and second sterilization assemblies are fixedly mounted to the truss or skirt panel.
According to some preferred aspects of the invention, the sterilization apparatus comprises a connector, one end of the connector is mounted on the truss or the apron board, and the other end of the connector is mounted with the light-gathering cover.
According to some preferred aspects of the invention, the connector is L-shaped, the connector comprises a first connector for securing a first sterile assembly and a second connector for securing a second sterile assembly, the first and second connectors being oriented differently.
The invention also provides an escalator or a moving walkway comprising the sterilization device.
Compared with the prior art, the invention has the advantages that: according to the sterilization device suitable for the handrail belt of the escalator or the automatic pedestrian path, two groups of sterilization components are arranged on the upper surface and the lower surface of the handrail belt, so that the sterilization of the inner surface and the outer surface of the handrail belt is realized, and the side plates are provided with the bent plates, so that the sterilization of the side surfaces of the handrail belt is realized, the sterilization device can realize more sufficient sterilization and disinfection of the handrail belt, and the hidden danger is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is an assembled view of the sterilization apparatus according to the preferred embodiment of the present invention after installation;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 4 is a schematic side view of the first sterilization assembly or the second sterilization assembly in accordance with the preferred embodiment of the present invention;
FIG. 5 is a schematic view of the assembly of the first sterilization assembly or the second sterilization assembly in a preferred embodiment of the present invention;
wherein: the novel glass sterilizing lamp comprises a first sterilizing lamp (1), a first light-gathering cover (2), a truss (3), a handrail belt (4), a second sterilizing lamp (5), a second light-gathering cover (6), a bolt assembly (7), a first connecting piece (8), a skirt guard panel (9), a fixing assembly (10), a second connecting piece (11), a glass clamping seat (12), a clamping seat (13), a clamping part (131), a convex part (132), a bottom plate (141), a side plate (142), a bending plate (143), a lamp holder (151), a lamp tube (152), a lug (153) and a sterilizing device (16).
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of the present invention.
Referring to fig. 1 to 5, the escalator or moving walkway of the present embodiment includes a truss 3, a handrail 4, a skirt panel 9, a sterilization device 16 installed on the truss 3 or the skirt panel 9, and other components such as a motor, a step plate, a glass clamping base 12, etc., which can be conventionally selected by those skilled in the art.
The sterilization device 16 in this embodiment is installed on the skirt panel 9 through the fixing assembly 10, and two sets of the same sterilization devices 16 are installed on the inclined section of the handrail belt 4, so as to achieve a more sufficient sterilization effect. The fixing assembly 10 comprises a fixing pipe fixedly connected with the apron plate 9, a bolt, a nut and a washer and other conventional fasteners. In other embodiments, the sterilization device 16 may also be mounted on the truss 3.
The sterilization device 16 in this embodiment includes a first sterilization component disposed corresponding to the inner surface of the handrail 4 and a second sterilization component disposed corresponding to the outer surface of the handrail 4, both the two sterilization components are installed below the glass clamp 12, the first sterilization component includes a first sterilization lamp 1, a first snoot 2 and a first connecting piece 8 for connecting the snoot to the fixing tube, the second sterilization component includes a second sterilization lamp 5, a second snoot 6 and a second connecting piece 11 for connecting the snoot to the fixing tube, the snoot is similar to a flat-bottom V-shape, the snoot includes a bottom plate 141 and a side plate 142 extending from the bottom plate 141 toward the handrail 4, the sterilization lamp is installed on the bottom plate 141, a bending plate 143 is disposed on one side of the side plate 142 close to the handrail 4, and the bending plate 143 is used for reflecting light emitted from the sterilization lamp to the side of the handrail 4.
As shown in fig. 3 and 5, the side surface of the handrail 4 is generally circular arc-shaped, in this embodiment, in order to reflect the ultraviolet light to the side surface of the handrail 4 more sufficiently, an included angle between a vertical line formed between the top end of the bending plate 143 and the circular arc surface and the vertical direction is set to be 60 °, an included angle between the top ends of the two bending plates 143 and the vertical line formed between the circular arc surfaces is set to be 60 °, and the length of the vertical line formed between the top end of the bending plate 143 and the circular arc surface is set to be 30mm in this embodiment. In other embodiments, an included angle between a perpendicular line formed between the top end of the bending plate 143 and the arc surface and the vertical direction is 45 ° to 75 °, and a length of the perpendicular line formed between the top end of the bending plate 143 and the arc surface is greater than 10 mm.
As shown in fig. 5, in this embodiment, an included angle between the side plate 142 and the bottom plate 141 is 60 °, and an included angle between the bending plate 143 and the side plate 142 is 10 °. Through the setting of above-mentioned angle, can make more light shine in the side of handrail area 4, realize more abundant sterilization. In other embodiments, the angle between the bending plate 143 and the horizontal plane is preferably 30-90 °.
The sterilizing lamp comprises a lamp holder 151 and a lamp tube 152, wherein a protruding block 153 which protrudes outwards is arranged in the length direction of the bottom of the lamp holder 151, a clamping seat 13 used for fixing the lamp holder 151 is arranged on the light-gathering cover, the clamping seat 13 is provided with a clamping part 131 matched with the protruding block 153, and the bottom of the lamp holder 151 is accommodated between the clamping part 131 and the bottom of the clamping seat 13. The distance between the two clamping parts 131 is smaller than the width between the two side protrusions 153 to fix the lamp holder 151 on the socket 13 without falling off. Through the fixed lamp stand 151 of cassette 13 buckle formula, and set up lug 153 and clamping part 131, conveniently fix and dismantle lamp stand 151 and cassette 13, make things convenient for the installation and the change maintenance of sterilamp, raise the efficiency.
As shown in fig. 3 and 5, the bottom of the card holder 13 is provided with a projection 132 projecting toward the germicidal lamp. The protrusion 132 functions to form the socket 13 in a spring-like manner, to facilitate the opening of the two clamping parts 131 when the socket 151 is installed so that the socket 151 is inserted into the socket 13, and to fix the socket 151 after the socket 151 is inserted into the socket 13 by the clamping parts 131. When the lamp holder 151 presses the protruding portion 132, the distance between the two fastening portions 131 is reduced, and the lamp holder 151 is fixed more stably.
In this embodiment, two protrusions 132 are disposed on the bottom of the socket 13, and the distance between adjacent protrusions 132 is smaller than the width of the bottom of the socket 151.
As shown in fig. 3, the connecting member in this embodiment is L-shaped, one end of the connecting member is mounted on the truss 3 or the apron plate 9, and the other end of the connecting member is mounted with the light-gathering cover. And in this embodiment the two connectors are located on the same side, but the orientation of the two connectors is different. In other embodiments, two connectors may be mounted one on skirt panel 9 and the other on truss 3 to match the spatial design within truss 3.
As shown in fig. 2 and 4, in this embodiment, the clamping seats are fixed on the light-gathering cover by the bolt assemblies 7, two clamping seats 13 are arranged on one light-gathering cover at intervals, and the lamp holder 151 is clamped on the clamping seats 13. And two connecting pieces are connected to one condensation cover at intervals, and the arrangement positions of the clamping seat 13 and the connecting pieces can be the same or different.
In the embodiment, the first sterilizing lamp 1 and the second sterilizing lamp 5 are connected in series to the same interface for control, the interface is an escalator or a moving sidewalk driving brake interface or a main control cabinet, and the sterilizing lamps and the handrail 4 can work synchronously, namely, the sterilizing lamps are turned on and off synchronously.
The sterilization device can be installed at any neutral position of the straight-line truss, on one hand, compared with an external handrail belt sterilization product on the market, the sterilization device is integrally positioned inside the truss, the normal work of a safety switch related to the handrail belt cannot be influenced, and any potential safety hazard to passengers cannot be caused; on the other hand, the sterilization device is provided with the upper sterilization assembly and the lower sterilization assembly, and the shape of the light-gathering cover is specially designed, so that the sterilization device can realize wider and more sufficient sterilization on the handrail, and the sterilization lamp is very convenient to install and replace.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims (10)

1. The utility model provides a sterilization apparatus suitable for automatic escalator or moving walk handrail area, a serial communication port, including the first sterilization subassembly that corresponds handrail area internal surface and the second sterilization subassembly that corresponds handrail area surface and set up, first sterilization subassembly and second sterilization subassembly all include the snoot and install sterilamp on the snoot, the snoot include the bottom plate and by the curb plate that the bottom plate extends towards the handrail area, sterilamp installs on the bottom plate, one side that the curb plate is close to the handrail area has the board of bending, bend the board be used for with the light reflection that sterilamp sent to the side of handrail area.
2. The sterilization apparatus according to claim 1, wherein the sterilization lamp comprises a lamp holder and a lamp tube, and a clamping seat for fixing the lamp holder is arranged on the light-gathering cover.
3. A sterilization apparatus according to claim 2, wherein the base of the lamp holder has a protrusion protruding outward in a length direction, the holder has a clamping portion engaged with the protrusion, and the base of the lamp holder is accommodated between the clamping portion and the base of the holder.
4. A sterilising apparatus according to claim 3, wherein the distance between the two gripping portions is less than the width between the lugs on either side.
5. A sterilization apparatus according to claim 2, wherein the bottom of the cassette is provided with a protrusion protruding toward the sterilization lamp.
6. A sterilization apparatus as defined in claim 5, wherein at least two protrusions are disposed on the bottom of the socket, and the distance between adjacent protrusions is smaller than the width of the bottom of the lamp holder.
7. A sterilization apparatus as defined in claim 2, wherein the included angle between the side plate and the bottom plate is 30-80 °, and the included angle between the bending plate and the side plate is 5-60 °.
8. A sterilization device according to claim 7, wherein the angle between the bending plate and the horizontal plane is 30-90 °.
9. A sterilization apparatus as claimed in claim 2, wherein the side surface of the handrail is arc-shaped, and the included angle between the vertical line formed between the top end of the bent plate and the arc surface and the vertical direction is 45 ° to 75 °.
10. An escalator or moving walkway comprising a sterilization device according to any one of claims 1 to 9.
CN202010755181.4A 2020-07-31 2020-07-31 Handrail area sterilization apparatus and have its automatic escalator or moving walk Pending CN111792506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010755181.4A CN111792506A (en) 2020-07-31 2020-07-31 Handrail area sterilization apparatus and have its automatic escalator or moving walk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010755181.4A CN111792506A (en) 2020-07-31 2020-07-31 Handrail area sterilization apparatus and have its automatic escalator or moving walk

Publications (1)

Publication Number Publication Date
CN111792506A true CN111792506A (en) 2020-10-20

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CN202010755181.4A Pending CN111792506A (en) 2020-07-31 2020-07-31 Handrail area sterilization apparatus and have its automatic escalator or moving walk

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130002312U (en) * 2011-10-07 2013-04-17 장재혁 Sterilization Apparatus of Escalator Handrail
CN203442731U (en) * 2013-08-29 2014-02-19 深圳市客亿电子科技有限公司 Integrated lamp tube installing buckle
CN204508545U (en) * 2015-02-16 2015-07-29 优耐德电梯有限公司 A kind of handrail automatic disinfection device
CN207467990U (en) * 2017-10-31 2018-06-08 苏州江南嘉捷电梯有限公司 A kind of automatic staircase handrail band chlorination equipment and escalator
CN111043574A (en) * 2019-11-20 2020-04-21 宁波三防照明科技有限公司 Quick fastening device for lamp holder and lampshade
CN212374685U (en) * 2020-07-31 2021-01-19 苏州江南嘉捷电梯有限公司 Handrail area sterilization apparatus and have its automatic escalator or moving walk

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130002312U (en) * 2011-10-07 2013-04-17 장재혁 Sterilization Apparatus of Escalator Handrail
CN203442731U (en) * 2013-08-29 2014-02-19 深圳市客亿电子科技有限公司 Integrated lamp tube installing buckle
CN204508545U (en) * 2015-02-16 2015-07-29 优耐德电梯有限公司 A kind of handrail automatic disinfection device
CN207467990U (en) * 2017-10-31 2018-06-08 苏州江南嘉捷电梯有限公司 A kind of automatic staircase handrail band chlorination equipment and escalator
CN111043574A (en) * 2019-11-20 2020-04-21 宁波三防照明科技有限公司 Quick fastening device for lamp holder and lampshade
CN212374685U (en) * 2020-07-31 2021-01-19 苏州江南嘉捷电梯有限公司 Handrail area sterilization apparatus and have its automatic escalator or moving walk

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