CN111833722A - Automatic equipment of clean outdoor display screen - Google Patents

Automatic equipment of clean outdoor display screen Download PDF

Info

Publication number
CN111833722A
CN111833722A CN202010823602.2A CN202010823602A CN111833722A CN 111833722 A CN111833722 A CN 111833722A CN 202010823602 A CN202010823602 A CN 202010823602A CN 111833722 A CN111833722 A CN 111833722A
Authority
CN
China
Prior art keywords
face
water
fixedly connected
rod
fixed
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.)
Withdrawn
Application number
CN202010823602.2A
Other languages
Chinese (zh)
Inventor
刘祥
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.)
Xinchang Hongda Computer Technology Co ltd
Original Assignee
Xinchang Hongda Computer 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.)
Filing date
Publication date
Application filed by Xinchang Hongda Computer Technology Co ltd filed Critical Xinchang Hongda Computer Technology Co ltd
Priority to CN202010823602.2A priority Critical patent/CN111833722A/en
Publication of CN111833722A publication Critical patent/CN111833722A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00Cleaning by methods involving the use of tools
    • B08B1/10Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/12Brushes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00Cleaning by methods involving the use of tools
    • B08B1/10Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/14Wipes; Absorbent members, e.g. swabs or sponges
    • B08B1/143Wipes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00Cleaning by methods involving the use of tools
    • B08B1/30Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00Cleaning by methods involving the use of tools
    • B08B1/30Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • B08B1/32Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02Cleaning by the force of jets or sprays

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

The invention discloses an apparatus for automatically cleaning outdoor display screen, comprising a cleaning device, wherein the cleaning device comprises a cleaning plate, a belt pulley is rotationally arranged in the cleaning plate, the rear end surface of the belt pulley is fixedly connected with a rolling brush, a belt is arranged on the belt pulley, the left side and the right side of the upper end surface of the cleaning plate are symmetrically and fixedly provided with supporting rods, the front end surface of each supporting rod is fixedly provided with a second supporting rod, the front end face of the second supporting rod is rotatably provided with a cylinder, the front end face of the cylinder is fixedly provided with a power supply, the power supply is connected with an electromagnet through a wire, the invention can clean the display screen at regular time, the device sequentially removes dust, sprays water and wipes the surface of the display screen in the cleaning process to remove dust and dirt on the surface of the display screen.

Description

Automatic equipment of clean outdoor display screen
Technical Field
The invention relates to the field of display screens, in particular to an outdoor display screen automatic cleaning device.
Background
Present display screen application is more and more wide, more and more large-scale occasion needs outdoor display screen, for example square, the commercial building, occasions such as concert all need use large-scale display, because the display screen is installed in the open air, often the sun is drenched with rain, the dust lid is blown in the wind, operational environment is abominable, so the display screen often can be covered with the dust, and the screen cleaning of many big displays at present all adopts artifical cleanness all to adopt artifical cleanness, not only artificial strength is big, extravagant manpower and materials, and cleaning efficiency is low.
Disclosure of Invention
The invention aims to solve the technical problem of providing the equipment for automatically cleaning the outdoor display screen, and the equipment has high cleaning efficiency, saves manpower and material resources and effectively realizes the difficulty brought by automatically cleaning the outdoor display screen.
The invention is realized by the following technical scheme.
The invention relates to equipment for automatically cleaning an outdoor display screen, which comprises a cleaning device, wherein the cleaning device comprises a cleaning plate, a belt pulley is arranged in the cleaning plate in a rotating manner, the rear end face of the belt pulley is fixedly connected with a rolling brush, a belt is arranged on the belt pulley, a support rod is fixedly arranged on the upper end face of the left side of the cleaning plate, a second support rod is fixedly arranged on the front end face of the support rod, a cylinder is fixedly arranged on the front end face of the second support rod, a power supply is fixedly arranged on the front end face of the cylinder, the power supply is connected with an electromagnet through a wire, a first magnet is arranged on the upper side of the electromagnet and is fixed on the lower end face of the second support rod, a rolling shaft is arranged in the rotating manner, the outer ring of the rolling shaft is connected with a torsion spring, a third support rod is rotatably arranged on the rolling shaft, the upper end face, the lower end face of the sprinkling box is fixedly connected with 9 water guide pipes, the lower end face of each water guide pipe is fixedly connected with a spray head, the upper end face of each water guide pipe is provided with a slide rail, a baffle is arranged in the slide rail in a sliding manner, the baffle is provided with 9 water through ports, the left end of the baffle is fixedly connected with a first spring, the first spring is fixedly connected to the inner wall of the left side of the slide rail, the right end face of the baffle is fixedly provided with a second magnet, and the baffle can control the communication of the water guide pipes;
the water supply device is arranged on the upper side of the baffle and comprises a water storage tank, the water storage tank is arranged in the water sprinkling tank, a piston rod is fixedly arranged on the upper end face of the water sprinkling tank, a T-shaped water guide opening is formed in the piston rod, the piston rod is arranged in a water passing tank in the water passing rod in a sliding mode, the opening of the water passing tank is upward, the upper end face of the piston rod props against the piston, the upper end face of the piston is fixedly connected with two second springs, the upper ends of the two second springs are fixedly arranged on the lower end faces of the two fixed blocks, a water passing opening is formed between the two fixed blocks, the upper end face of the water passing rod is fixedly connected with the water tank, and;
the belt pulley left side is equipped with elevating gear, elevating gear is including taking the gear, take gear left end face and rack intermeshing, the fixed spiral shaft cover that is equipped with of clearance board left end face, rotate with the screw axis meshing in the spiral shaft cover, the fixed motor that is equipped with of screw axis up end, the fixed time delay electrical apparatus that is equipped with of motor up end, time delay relay control motor operating time.
Preferably, the cleaning device further comprises a third magnet fixedly arranged on the central end face of the left side of the fixed rod, a first switch deflector rod is arranged on the lower side of the third magnet, the first switch deflector rod is fixedly connected to the left end face of the fixed rod, the fixed rod is slidably arranged in the guide block, the guide block is fixedly connected to the right end face of the cleaning plate, a rotating shaft is arranged at the lower end of the fixed rod in a rotating manner, a second switch deflector piece is fixedly connected to the rotating shaft, a third spring is fixedly connected to the lower end of the second switch deflector piece, and the other end of the third spring is fixedly connected to the left end face of the fixed rod.
Preferably, a water filter screen is fixedly arranged on the upper end face of the water tank, a second fixing rod is fixedly connected to the left end face and the right end face of the water tank, the upper end face of the second fixing rod is fixedly connected with a solar panel, and the left end face of the second fixing rod is fixedly connected with the solar panel and the time delay electric appliance.
The invention has the beneficial effects that: the solar energy cleaning device can clean the display screen at regular time, and the device can sequentially remove dust, sprinkle water and wipe the surface of the display screen in the cleaning process so as to remove the dust and dirt on the surface of the display screen.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the embodiment of the present invention in the direction of A-A in FIG. 1;
FIG. 3 is a schematic view of the embodiment of the present invention in the direction B-B in FIG. 1;
FIG. 4 is an enlarged schematic view of the embodiment of the present invention at C in FIG. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
With reference to the accompanying drawings 1-4, the device for automatically cleaning the outdoor display screen comprises a cleaning device 80, wherein the cleaning device 80 comprises a cleaning plate 15, 20 belt pulleys 19 are arranged in the cleaning plate 15 in a rotating manner, a rolling brush 53 is fixedly connected to the rear end face of each belt pulley 19, a belt 18 is arranged on each belt pulley 19, a supporting rod 22 is fixedly arranged on the left side of the cleaning plate 15, a second supporting rod 65 is fixedly arranged on the front end face of each supporting rod 22, a cylinder 23 is fixedly arranged at the front end of each second supporting rod 65, a power supply 39 is fixedly arranged on the front end face of each cylinder 23, the power supply 39 is connected with an electromagnet 51 through an electric wire 50, a first magnet 52 is arranged on the upper side of the electromagnet 51 and is fixed on the lower end face of each second supporting rod 65, a roller 67 is arranged in the cylinder 23 in a rotating manner, the outer ring of the roller, the upper end face and the lower end face of the third supporting rod are respectively fixedly connected with a first sponge eraser 34 and a second sponge eraser 20, the upper end face of the second supporting rod 22 is fixedly provided with a water sprinkling tank 33, the lower end face of the water sprinkling tank 33 is fixedly connected with 9 water guide pipes 29, the lower end face of each water guide pipe 29 is fixedly connected with a spray head 28, the upper end faces of the 9 water guide pipes 29 are provided with slide rails 68, baffle plates 27 are arranged in the slide rails 68 in a sliding manner, the baffle plates 27 are provided with 9 water through holes 31, the left end of each baffle plate 27 is fixedly connected with a first spring 25, the first springs 25 are fixedly connected with the inner walls of the left sides of the slide rails 68, the right end face of each baffle plate 27 is fixedly provided with a second magnet;
a water supply device 81 is arranged on the upper side of the baffle plate 27, the water supply device 81 comprises a water storage tank 32, the water storage tank 32 is arranged in the water sprinkling tank 33, a piston rod 57 is fixedly arranged on the upper end surface of the water sprinkling tank 33, a T-shaped water guide port 56 is arranged in the piston rod 57, the piston rod 57 is arranged in a water passing tank 59 in the water passing rod 44 in a sliding manner, the opening of the water passing tank 59 is upward, the upper end surface of the piston rod 57 is abutted against the piston 61, the upper end surface of the piston 61 is fixedly connected with two second springs 62, the upper ends of the two second springs 62 are fixedly arranged on the lower end surfaces of two fixed blocks 63, a water passing port 64 is arranged between the two fixed blocks 63, the upper end surface of the water passing rod 44 is fixedly connected with a water tank 45, and the;
the left side of the belt pulley 19 is provided with a lifting device 82, the lifting device 82 comprises a belt gear 17, the left end face of the belt gear 17 is meshed with the rack 16, the left end face of the cleaning plate 15 is fixedly provided with a spiral shaft sleeve 14, the spiral shaft sleeve 14 is internally meshed with the spiral shaft 13 to rotate, the upper end face of the spiral shaft 13 is fixedly provided with a motor 12, the upper end face of the motor 12 is fixedly provided with a time delay electric appliance 11, and the time delay relay 11 controls the working time of the motor 12.
Advantageously, the cleaning device 80 further comprises a third magnet 37 fixedly arranged on the left central end face of the fixing rod 36, a first switch lever 38 is arranged on the lower side of the third magnet 37, the first switch lever 38 is fixedly connected to the left end face of the fixing rod 36, the fixing rod 36 is slidably arranged in a guide block 40, the guide block 40 is fixedly connected to the right end face of the cleaning plate 15, a rotating shaft 42 is rotatably arranged at the lower end of the fixing rod 36, a second switch lever 41 is fixedly connected to the rotating shaft 42, a third spring 43 is fixedly connected to the lower end of the second switch lever 41, and the other end of the third spring 43 is fixedly connected to the left end face of the fixing rod 36.
Advantageously, a water filter 48 is fixedly arranged on the upper end face of the water tank 45, a second fixing rod 46 is fixedly connected to the left and right end faces of the water tank, a solar panel 47 is fixedly connected to the upper end face of the second fixing rod 46, and the solar panel 47 on the left side is fixedly connected to the time delay electric appliance 11.
In the initial state, the second spring 62 is in a compressed state, and the first spring 25 is in a normal state.
Firstly, setting the working time and the working period of the time delay relay 11, when the motor 12 starts to rotate the rotating shaft 13, the rotating shaft 13 is connected with the rotating shaft sleeve 14 through the screw thread of the rotating shaft 13, the rotating shaft sleeve 14 can drive the cleaning plate 15 to move downwards, the gear 17 on the cleaning plate 15 is meshed with the rack 16 to rotate, the belt pulley 19 at the rear side of the gear 17 drives all the belt pulleys 19 to rotate through the belt 18, the rolling brush 53 fixed on the rear end surface of the belt pulley 19 rotates to clean the surface of the display screen, the water storage tank 33 also moves downwards along with the cleaning plate 15, the piston rod 57 fixed on the upper end surface of the water storage tank 33 can move downwards, the second spring 62 is reset to drive the piston 61 to descend to block the water through port 59, the T-shaped water guide port 56 is disconnected from the water through rod 44, the second magnet 35 at the right end of the baffle plate 27 is disconnected from the attraction with the third magnet, at the moment, the spray head 28 begins to spray water, the sponge wiper 34 is tightly attached to the screen to wipe downwards through the torsional spring 66, when the power supply 39 moves to the second switch shifting piece 41, the switch is turned on, the electromagnet 51 is electrified to attract the third electromagnet 52, one end of the third supporting rod 24, which is provided with the second sponge wiper 20, is tightly attached to the screen, when the motor 12 rotates reversely to enable the cleaning device 80 to move upwards, the second sponge wiper 20 wipes the screen, when the power supply 39 rises to the switch shifting piece 38, the motor is turned off, the electromagnet 51 is powered off, the torsional spring 66 is reset to enable the first sponge wiper to be attached to the upper side of the screen, and cleaning is completed; at this time, the piston rod 57 is raised into the water passage groove 59, and the piston 61 is moved upward, so that the water in the tank is introduced into the water spray tank 33 through the T-shaped water guide port to be filled with water.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (3)

1. The utility model provides an automatic equipment of clean outdoor display screen, includes cleaning device, its characterized in that: the cleaning device comprises a cleaning plate, a belt pulley is rotatably arranged in the cleaning plate, a rolling brush is fixedly connected with the rear end face of the belt pulley, a belt is arranged on the belt pulley, a supporting rod is fixedly arranged on the upper end face of the left side of the cleaning plate, a second supporting rod is fixedly arranged on the front end face of the supporting rod, a cylinder is fixedly arranged on the front end face of the second supporting rod, a power supply is fixedly arranged on the front end face of the cylinder, the power supply is connected with an electromagnet through an electric wire, a first magnet is arranged on the upper side of the electromagnet and fixed on the lower end face of the second supporting rod, a rolling shaft is rotatably arranged in the cylinder, a torsional spring is connected with the outer ring of the rolling shaft, a third supporting rod is rotatably arranged on the rolling shaft, the upper end face and the lower end face of the third supporting rod are respectively and fixedly connected with a first, the lower end face of each water guide pipe is fixedly connected with a spray head, the upper end face of each water guide pipe is provided with a slide rail, a baffle is arranged in the slide rail in a sliding manner, the baffle is provided with 9 water through openings, the left end of the baffle is fixedly connected with a first spring, the first spring is fixedly connected to the inner wall of the left side of the slide rail, the right end face of the baffle is fixedly provided with a second magnet, and the baffle can control the communication of the water guide pipes;
the water supply device is arranged on the upper side of the baffle and comprises a water storage tank, the water storage tank is arranged in the water sprinkling tank, a piston rod is fixedly arranged on the upper end face of the water sprinkling tank, a T-shaped water guide opening is formed in the piston rod, the piston rod is arranged in a water passing tank in the water passing rod in a sliding mode, the opening of the water passing tank is upward, the upper end face of the piston rod props against the piston, the upper end face of the piston is fixedly connected with two second springs, the upper ends of the two second springs are fixedly arranged on the lower end faces of the two fixed blocks, a water passing opening is formed between the two fixed blocks, the upper end face of the water passing rod is fixedly connected with the water tank, and;
the belt pulley left side is equipped with elevating gear, elevating gear is including taking the gear, take gear left end face and rack intermeshing, the fixed spiral shaft cover that is equipped with of clearance board left end face, rotate with the screw axis meshing in the spiral shaft cover, the fixed motor that is equipped with of screw axis up end, the fixed time delay electrical apparatus that is equipped with of motor up end, time delay relay control motor operating time.
2. The apparatus of claim 1, wherein the apparatus further comprises: the cleaning device further comprises a third magnet fixedly arranged on the central end face of the left side of the fixed rod, a first switch driving lever is arranged on the lower side of the third magnet and fixedly connected to the left end face of the fixed rod, the fixed rod is slidably arranged in a guide block, the guide block is fixedly connected to the right end face of the cleaning plate, a rotating shaft is arranged at the lower end of the fixed rod in a rotating mode, a second switch shifting piece is fixedly connected to the rotating shaft, a third spring is fixedly connected to the lower end of the second switch shifting piece, and the other end of the third spring is fixedly connected to the left end face of the fixed rod.
3. The apparatus of claim 1, wherein the apparatus further comprises: the water tank upper end face is fixed and is equipped with the water strainer, both ends face fixedly connected with second dead lever about the water tank, second dead lever up end fixed connection solar panel, left side solar panel with time delay electrical apparatus fixed connection.
CN202010823602.2A 2020-08-17 2020-08-17 Automatic equipment of clean outdoor display screen Withdrawn CN111833722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010823602.2A CN111833722A (en) 2020-08-17 2020-08-17 Automatic equipment of clean outdoor display screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010823602.2A CN111833722A (en) 2020-08-17 2020-08-17 Automatic equipment of clean outdoor display screen

Publications (1)

Publication Number Publication Date
CN111833722A true CN111833722A (en) 2020-10-27

Family

ID=72918072

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010823602.2A Withdrawn CN111833722A (en) 2020-08-17 2020-08-17 Automatic equipment of clean outdoor display screen

Country Status (1)

Country Link
CN (1) CN111833722A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112718607A (en) * 2021-01-12 2021-04-30 义乌市环升网络科技有限公司 Self-adaptation different thickness display screens just can collect wiping arrangement of waste water
CN113077712A (en) * 2021-03-31 2021-07-06 重庆航天职业技术学院 Electronic information signboard
CN113522834A (en) * 2021-07-27 2021-10-22 杨海燕 Health education intelligence propaganda stand
CN113920890A (en) * 2021-10-12 2022-01-11 北京华易德科技有限公司 Interactive energy-saving LED display screen
CN114951066A (en) * 2022-05-26 2022-08-30 河南大学 Novel broadcaster uses multi-functional operation panel
CN117798650A (en) * 2024-02-29 2024-04-02 福建希恩凯电子有限公司 Display screen assembling equipment and process

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112718607A (en) * 2021-01-12 2021-04-30 义乌市环升网络科技有限公司 Self-adaptation different thickness display screens just can collect wiping arrangement of waste water
CN113077712A (en) * 2021-03-31 2021-07-06 重庆航天职业技术学院 Electronic information signboard
CN113077712B (en) * 2021-03-31 2022-06-28 重庆航天职业技术学院 Electronic information signboard
CN113522834A (en) * 2021-07-27 2021-10-22 杨海燕 Health education intelligence propaganda stand
CN113522834B (en) * 2021-07-27 2022-04-22 杨海燕 Health education intelligence propaganda stand
CN113920890A (en) * 2021-10-12 2022-01-11 北京华易德科技有限公司 Interactive energy-saving LED display screen
CN113920890B (en) * 2021-10-12 2023-12-01 北京华易德科技有限公司 Interactive energy-saving LED display screen
CN114951066A (en) * 2022-05-26 2022-08-30 河南大学 Novel broadcaster uses multi-functional operation panel
CN117798650A (en) * 2024-02-29 2024-04-02 福建希恩凯电子有限公司 Display screen assembling equipment and process
CN117798650B (en) * 2024-02-29 2024-06-07 福建希恩凯电子有限公司 Display screen assembling equipment and process

Similar Documents

Publication Publication Date Title
CN111833722A (en) Automatic equipment of clean outdoor display screen
CN207337827U (en) One kind can self-cleaning outdoor all-colour LED advertisement screen
CN100588359C (en) Apparatus for automatically cleaning out-wall of high building
CN106513351B (en) A kind of electric automobile charging pile dedicated cleaner and its cleaning method
CN209077280U (en) A kind of full automatic solar solar panel cleaning device
CN208600416U (en) It is a kind of for cleaning the automatic cleaning machine structure of outdoor photovoltaic power generation apparatus
CN206897895U (en) A kind of surface deashing device of outdoor LED display screen
CN220711432U (en) Solar photovoltaic power generation dust pelletizing system
KR100881926B1 (en) A cleaning robot
CN219655930U (en) Solar street lamp capable of automatically cleaning solar panel
CN209724159U (en) Sunshading and thermal insulating window with automatic cleaning apparatus
CN208131520U (en) A kind of cleaning device for solar energy heat absorbing coating
CN208160589U (en) A kind of solar energy tiling cleaner
CN113057513B (en) Glass window with automatic cleaning function and cleaning method thereof
CN213488572U (en) Glass curtain wall convenient to wash
CN103565346A (en) Multifunctional cleaner
CN110250986A (en) A kind of efficient equipment that cleans the windows
CN202960363U (en) Multifunctional cleaner
CN110788074B (en) Solar cell panel anhydrous automatic cleaning device based on fixed rail
CN207530770U (en) Solar energy photovoltaic panel automatic cleaning apparatus
CN219802267U (en) Photovoltaic product cleaning equipment
CN217852779U (en) Building curtain wall with self-cleaning function
CN219782458U (en) A outer wall belt cleaning device for rinsing building outer wall
CN209091211U (en) A kind of glass curtain wall cleaning device
CN220043348U (en) Household photovoltaic energy storage power generation system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20201027