CN112058726A - Self-cleaning system for high-altitude electronic advertising board - Google Patents
Self-cleaning system for high-altitude electronic advertising board Download PDFInfo
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- CN112058726A CN112058726A CN202010903601.9A CN202010903601A CN112058726A CN 112058726 A CN112058726 A CN 112058726A CN 202010903601 A CN202010903601 A CN 202010903601A CN 112058726 A CN112058726 A CN 112058726A
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- side wall
- sliding
- frame body
- sliding block
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- 238000004140 cleaning Methods 0.000 title claims abstract description 38
- 239000000696 magnetic material Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 50
- 230000005389 magnetism Effects 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 18
- 230000006698 induction Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
Landscapes
- Cleaning In General (AREA)
Abstract
The invention discloses a high-altitude electronic billboard self-cleaning system which comprises a frame body, wherein a placing groove is formed in the side wall of the frame body, a sliding groove is formed in the inner wall of the placing groove, a sliding block made of a magnetic material is connected to the inner wall of the sliding groove in a sliding mode, a cleaning strip is fixedly connected to the side wall of the sliding block, a sliding plug cavity is formed in the frame body, a reciprocating lead screw is rotatably connected to the inner wall of the sliding plug cavity, and the lower end of the reciprocating lead screw penetrates through the lower end of the frame body and is. When wind blows, the wind cup drives the reciprocating screw rod to rotate, and further drives the magnetic sliding block to slide up and down on the inner wall of the sliding plug cavity, so that the spiral coil cuts magnetic induction lines and generates induction current, the electromagnet generates magnetic force, the sliding block is further attracted to slide downwards, the cleaning strip is driven to slide downwards, dust on the side wall of the advertising board is cleaned, the phenomenon that dust on the advertising board is accumulated more, the display of the advertising board is influenced, and meanwhile the service life of the advertising board is shortened.
Description
Technical Field
The invention relates to the technical field of billboard cleaning, in particular to a high-altitude electronic billboard self-cleaning system.
Background
At present, with the increasing commercial competition, in order to better publicize the products of merchants, electronic billboards are often installed at some high-altitude conspicuous positions, so that the electronic billboards can be displayed in the day and at night.
Because the electronic advertising boards used for displaying commodity information are mostly arranged on two sides of a road, and because more dust is on the road, the electronic advertising boards can be lifted upwards and float to the advertising boards when wind blows, and the advertising boards are accumulated, on one hand, the accumulated dust can influence the sight of people, so that the information on the advertising boards cannot be effectively displayed, and on the other hand, the accumulated dust can influence the heat dissipation of the electronic advertising boards, so that more heat is accumulated in the electronic advertising boards after the electronic advertising boards are electrified, the service lives of electronic elements in the electronic advertising boards are influenced, and the electronic advertising boards are inconvenient to maintain and repair due to higher installation positions of the electronic advertising boards, so that the maintenance and display cost of merchants for the electronic advertising boards is increased.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a self-cleaning system for an overhead electronic billboard.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-altitude electronic billboard self-cleaning system comprises a frame body, wherein a placement groove is formed in the side wall of the frame body, a billboard is mounted on the inner wall of the placement groove, a chute is formed in the inner wall of the placement groove, a slider made of a magnetic material is connected to the inner wall of the chute in a sliding manner, a cleaning strip is fixedly connected to the side wall of the slider, the cleaning strip is attached to the side wall of the billboard, a recovery cavity is formed in the upper end of the frame body, a tension spring is rotatably connected to the inner wall of the recovery cavity through a rotating shaft, one end of the tension spring penetrates through the side wall of the frame body and is fixedly connected with the upper end of the slider, a sliding plug cavity is formed in the frame body, a reciprocating lead screw is rotatably connected to the inner wall of the sliding plug cavity, the lower end of the reciprocating lead screw penetrates through the lower end of the, and the spiral coil is coupled with the electromagnet, the upper end of the frame body is provided with a water collecting tank, and the frame body is provided with a watering mechanism for watering the side wall of the billboard.
Preferably, watering mechanism includes the one-way arc of fixed connection at the water catch bowl inner wall, one-way arc adopts elastic material to make, the water storage chamber has been seted up to the bottom in the standing groove, the bottom passes through inlet tube and water storage chamber intercommunication in the water catch bowl, the apopore has been seted up to water storage intracavity bottom equipartition, one-way arc lower extreme fixedly connected with supports the post with the inner wall complex of inlet tube.
Preferably, the upper end of the magnetic sliding plug is fixedly connected with a telescopic air bag, the cleaning strip is internally provided with an air storage cavity, the side wall of the cleaning strip is provided with an air jet hole communicated with the side wall of the air storage cavity, the air jet hole is obliquely arranged towards the side wall of the advertising board, the side wall of the telescopic air bag is communicated with the air storage cavity through a one-way air inlet pipe, and the side wall of the telescopic air bag is communicated with the outside through a one-way air suction pipe.
The invention has the following beneficial effects:
1. by arranging the air cup, the reciprocating screw rod, the magnetic sliding plug, the spiral coil and the electromagnet, when wind blows, the air cup drives the reciprocating screw rod to rotate, so that the magnetic sliding plug is driven to slide up and down on the inner wall of the sliding plug cavity, the spiral coil cuts magnetic induction lines and generates induction current, magnetic force is generated on the electromagnet, the sliding block is attracted to slide downwards, the cleaning strip is driven to slide downwards, dust on the side wall of the billboard is cleaned, the phenomenon that more dust is accumulated on the billboard is avoided, and the service life of the billboard is reduced while the display of the billboard is influenced;
2. the spiral coil is only arranged on the inner wall of the middle part of the sliding plug cavity, so that when the magnetic sliding plug slides up and down on the inner wall of the sliding plug cavity and leaves the spiral coil, the spiral coil does not generate induced current, the magnetism on the electromagnet disappears, the sliding block moves up under the action of the tension spring to drive the cleaning strip to move up, when the magnetic sliding plug moves into the spiral coil, the induced current is generated on the spiral coil again, the electromagnet drives the sliding block to slide down again, and the steps are repeated, so that the sliding block slides up and down on the inner wall of the sliding chute under the action of the magnetic attraction force of the electromagnet and the tension spring to drive the cleaning strip to slide up and down on the side wall of the advertising board, and the dust cleaning;
3. by arranging the water collecting groove, the one-way arc-shaped plate and the abutting column, when wind blows, the flow velocity of the wind at the upper end of the one-way arc-shaped plate is high, the pressure intensity is low, the bernoulli principle shows that the one-way arc-shaped plate arches upwards under the action of the pressure intensity to drive the abutting column to be separated from the pipe orifice of the water inlet pipe, so that water in the water inlet pipe enters the water storage cavity and flows out from the water outlet hole, dust adhered to the billboard is wetted, and the cleaning of the side wall of the billboard is accelerated;
4. the water collecting tank can collect rainwater in rainy seasons, so that the rainwater is greatly collected and utilized, the environment is protected, the rainwater in the water collecting tank is prevented from being heated and evaporated due to the existence of the one-way arc-shaped plate, and the rainwater in the water collecting tank is effectively protected;
5. through setting up flexible gasbag, one-way intake pipe, gas storage chamber and fumarole, when the slip stopper of magnetism slides from top to bottom for gas in the flexible gasbag constantly gets into in the gas storage chamber through one-way intake pipe, and spout from the fumarole high-speed, blows the clearance with the stubborn dust of bill-board lateral wall, further accelerated the effective clearance to the dust.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a schematic side sectional view illustrating a first embodiment of the present invention;
FIG. 4 is a schematic structural diagram according to a first embodiment of the present invention;
fig. 5 is an enlarged schematic view of the structure at B in fig. 4.
In the figure: 1 framework, 2 standing grooves, 3 bill-boards, 4 spouts, 5 sliders, 6 cleaning strips, 7 recovery cavities, 8 extension springs, 9 sliding plug cavities, 10 reciprocating lead screws, 11 wind cups, 12 magnetic sliding plugs, 13 spiral coils, 14 electromagnets, 15 water collecting grooves, 16 one-way arc-shaped plates, 17 abutting columns, 18 water storage cavities, 19 water inlet pipes, 20 water outlet holes, 21 telescopic air bags, 22 air storage cavities, 23 one-way air inlet pipes, 24 air jet holes and 25 one-way air suction pipes.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example one
Referring to fig. 1-3, a high altitude electronic billboard self-cleaning system comprises a frame body 1, a placement groove 2 is arranged on the side wall of the frame body 1, a billboard 3 is arranged on the inner wall of the placement groove 2, a sliding groove 4 is arranged on the inner wall of the placement groove 2, a sliding block 5 made of magnetic material is connected on the inner wall of the sliding groove 4 in a sliding manner, a cleaning strip 6 is fixedly connected on the side wall of the sliding block 5, the cleaning strip 6 is attached to the side wall of the billboard 3, further, the cleaning strip 6 is made of transparent material to avoid shielding the display information of the billboard 3, a recovery cavity 7 is arranged at the upper end of the frame body 1, the inner wall of the recovery cavity 7 is rotatably connected with a tension spring 8 through a rotating shaft, one end of the tension spring 8 penetrates through the side wall of the frame body 1 and is fixedly connected with the upper end of the sliding block 5, a sliding plug cavity 9 is arranged, furthermore, the wind cup 11 is a hollow hemispherical structure, which is convenient for the wind cup to rotate under the action of wind power, the side wall of the reciprocating lead screw 10 is in threaded connection with a magnetic sliding plug 12, the inner wall of the middle part of the sliding plug cavity 9 is embedded with a spiral coil 13, the bottom part of the sliding chute 4 is embedded with an electromagnet 14, the spiral coil 13 is coupled with the electromagnet 14, further, the spiral coil 13 is unevenly arranged, which is convenient for the magnetic sliding plug 12 to generate induced current on the spiral coil 13 when sliding, when the magnetic sliding plug 12 slides in the sliding plug cavity 9 to the spiral coil 13, the spiral coil 13 cuts a magnetic induction line and generates induced current, so that the electromagnet 14 generates magnetism, because the magnetic attraction force of the electromagnet 14 to the sliding block 5 is greater than the elastic force of the tension spring 8, the sliding block 5 drives the cleaning strip 6 to slide downwards on the side wall of the advertising board 3, when the magnetic sliding plug 12, inductive current disappears on helical coil 13 this moment, make magnetism disappear on electro-magnet 14, the appeal to slider 5 disappears, make slider 5 drive clean strip 6 upwards to slide under the effect of extension spring 8, so relapse, make slider 5 drive clean strip 6 and make a round trip to slide from top to bottom at bill-board 3 lateral wall under the effect of the magnetic attraction of electro-magnet 14 and extension spring 8, dust cleaning effect on bill-board 3 is better, water catch bowl 15 has been seted up to framework 1 upper end, install the watering mechanism that carries out the watering to bill-board 3 lateral wall on framework 1.
The sprinkling mechanism comprises a one-way arc-shaped plate 16 fixedly connected to the inner wall of a water collecting tank 15, the one-way arc-shaped plate 16 is made of elastic materials, furthermore, the upper end of the one-way arc-shaped plate 16 is arranged in an arch shape, the one-way arc-shaped plate 16 only allows water to enter the water collecting tank 15 from the outside, the water in the water collecting tank 15 is prevented from being dispersed, rainwater can be accumulated towards two sides through the arch-shaped surface of the one-way arc-shaped plate 16 in rainy days, the rainwater is more convenient to collect, the water collecting tank 15 can also be connected with an external water source, a water storage cavity 18 is arranged at the bottom of a placing tank 2, the bottom of the water collecting tank 15 is communicated with the water storage cavity 18 through a water inlet pipe 19, water outlet holes 20 are uniformly distributed at the bottom of the water storage cavity 18, a support column 17 matched with the inner wall of the water inlet pipe 19 is fixedly connected, according to Bernoulli's principle, the one-way arc-shaped plate 16 will arch upwards under the action of pressure, and then the prop 17 will be driven to move upwards to be separated from the mouth of the water inlet pipe 19.
In the embodiment, when wind blows, the wind cup 11 fixedly connected to the lower end of the reciprocating lead screw 10 continuously rotates under the action of wind power to drive the magnetic sliding plug 12 in threaded connection with the side wall of the reciprocating lead screw 10 to slide up and down on the inner wall of the sliding plug cavity 9, so that the spiral coil 13 embedded in the inner wall of the sliding plug cavity 9 cuts magnetic induction lines and generates induction current, the electromagnet 14 coupled with the spiral coil 13 is electrified to generate magnetism, because the magnetic attraction force of the electromagnet 14 to the sliding block 5 is far greater than the pulling force of the tension spring 8 to the sliding block 5, the sliding block 5 drives the cleaning strip 6 to slide down on the side wall of the advertising board 3 to clean dust on the advertising board, when the magnetic sliding plug 12 slides to be separated from the spiral coil 13, the induction current on the spiral coil 13 disappears, so that the attraction force of the electromagnet 14 to the sliding block 5 disappears, and the sliding block 5 drives the cleaning strip 6 to slide, the steps are repeated, so that the slide block 5 drives the cleaning strip 6 to slide up and down on the side wall of the advertising board 3 under the action of the magnetic attraction of the electromagnet 14 and the tension spring 8, and the dust cleaning effect on the advertising board 3 is better;
when wind drives wind cup 11 and rotates, wind current this moment flows through one-way arc 16, because one-way arc 16 upper end is the arch setting, make wind very fast at the velocity of flow of one-way arc 16 arcwall face, can know by bernoulli's principle, one-way arc 16 can be at this moment upwards hunch-up under the effect of pressure, then drive to support post 17 and move up to separately with the 19 mouths of pipe of inlet tube, make the water in the water catch bowl 15 carry out in the water storage chamber 18 through inlet tube 19, and flow out from apopore 20, the dust of adhesion is moist on 3 to the bill-board.
When wind stops, the one-way arc-shaped plate 16 moves downwards to enable the abutting column 17 to be attached to the inner wall of the water inlet pipe 19, so that water in the water collecting tank 15 does not flow out, sprinkling on the side wall of the advertising board 3 is stopped, the wind cup 11 stops rotating, magnetism on the electromagnet 14 disappears, and the sliding block 5 slides upwards to the initial position under the action of the tension spring 8.
Example two
Referring to fig. 4-5, the difference from the first embodiment is that the upper end of the magnetic sliding plug 12 is fixedly connected with a telescopic air bag 21, a gas storage cavity 22 is formed in the cleaning strip 6, a gas orifice 24 communicated with the side wall of the gas storage cavity 22 is formed in the side wall of the cleaning strip 6, and the gas orifice 24 is obliquely arranged towards the side wall of the billboard 3, when high-speed gas flows out from the gas orifice 24, the tangential acting force of the gas flow on the billboard 3 is large, stubborn dust on the billboard 3 is blown in and out, the side wall of the telescopic air bag 21 is communicated with the gas storage cavity 22 through a one-way gas inlet pipe 23, the side wall of the telescopic air bag 21 is communicated with the outside through a one-way gas suction pipe 25, further, the one-way gas inlet pipe 23 only allows gas to enter the gas storage cavity 22.
It is worth mentioning that, when playing the breeze, the slow rotation of wind cup 11 drives magnetism sliding plug 12 and does the short distance slip at reciprocal lead screw 10 lateral wall, but under the effect of flexible gasbag 21 elasticity itself, can restrain magnetism sliding plug 12 and slide, and then restrain wind cup 11 and rotate for wind cup 11 can not rotate under the breeze effect, only wind cup 11 rotates under the strong wind effect, thereby makes the device operation, has prolonged the life of device.
In this embodiment, when magnetism sliding plug 12 slides from top to bottom at sliding plug chamber 9 inner wall, under the effect of one-way intake pipe 23 and one-way breathing pipe 25, make the gas in flexible gasbag 21 constantly pass through one-way intake pipe 23 and get into in the gas storage chamber 22, and from the high-speed blowout of fumarole 24 department that the slope set up, make the tangential effort of high-speed air current to bill-board 3 great, blow up the clearance with the stubborn dust of bill-board 3 lateral wall, further accelerated the effective clearance of bill-board 3 lateral wall to the dust.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. The high-altitude electronic billboard self-cleaning system comprises a frame body (1) and is characterized in that a placing groove (2) is formed in the side wall of the frame body (1), a billboard (3) is installed on the inner wall of the placing groove (2), a sliding groove (4) is formed in the inner wall of the placing groove (2), a sliding block (5) made of a magnetic material is connected to the inner wall of the sliding groove (4) in a sliding mode, a cleaning strip (6) is fixedly connected to the side wall of the sliding block (5), the cleaning strip (6) is attached to the side wall of the billboard (3), a recovery cavity (7) is formed in the upper end of the frame body (1), an inner wall of the recovery cavity (7) is rotatably connected with a tension spring (8) through a rotating shaft, one end of the tension spring (8) penetrates through the side wall of the frame body (1) and is fixedly connected with the upper end of the sliding block (5), a sliding plug cavity, reciprocating screw (10) lower extreme runs through a plurality of wind cups of framework (1) lower extreme and fixedly connected with (11), reciprocating screw (10) lateral wall threaded connection has magnetism sliding plug (12), sliding plug chamber (9) middle part inner wall inlays and is equipped with helical coil (13), bottom inlays and is equipped with electro-magnet (14) in spout (4), just helical coil (13) and electro-magnet (14) coupling are connected, water catch bowl (15) have been seted up to framework (1) upper end, install the watering mechanism that sprinkles to bill-board (3) lateral wall on framework (1).
2. The high-altitude electronic billboard self-cleaning system according to claim 1, characterized in that the watering mechanism comprises a one-way arc-shaped plate (16) fixedly connected to the inner wall of a water collection tank (15), the one-way arc-shaped plate (16) is made of elastic materials, a water storage cavity (18) is formed in the bottom of the placement tank (2), the bottom of the water collection tank (15) is communicated with the water storage cavity (18) through a water inlet pipe (19), water outlet holes (20) are uniformly formed in the bottom of the water storage cavity (18), and a support column (17) matched with the inner wall of the water inlet pipe (19) is fixedly connected to the lower end of the one-way arc-shaped plate (16).
3. The high-altitude electronic billboard self-cleaning system as claimed in claim 1, wherein a telescopic air bag (21) is fixedly connected to the upper end of the magnetic sliding plug (12), an air storage cavity (22) is formed in the cleaning strip (6), an air jet hole (24) communicated with the side wall of the air storage cavity (22) is formed in the side wall of the cleaning strip (6), the air jet hole (24) is obliquely arranged towards the side wall of the billboard (3), the side wall of the telescopic air bag (21) is communicated with the air storage cavity (22) through a one-way air inlet pipe (23), and the side wall of the telescopic air bag (21) is communicated with the outside through a one-way air suction pipe (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010903601.9A CN112058726A (en) | 2020-09-01 | 2020-09-01 | Self-cleaning system for high-altitude electronic advertising board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010903601.9A CN112058726A (en) | 2020-09-01 | 2020-09-01 | Self-cleaning system for high-altitude electronic advertising board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112058726A true CN112058726A (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010903601.9A Withdrawn CN112058726A (en) | 2020-09-01 | 2020-09-01 | Self-cleaning system for high-altitude electronic advertising board |
Country Status (1)
| Country | Link |
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| CN (1) | CN112058726A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112864910A (en) * | 2021-03-03 | 2021-05-28 | 赵蓥锋 | Gobi area is with block terminal that has prevent wind husky function |
| CN113539057A (en) * | 2021-09-15 | 2021-10-22 | 南通左易广告有限公司 | Energy-saving wind-swing electronic billboard |
| CN113781933A (en) * | 2021-09-10 | 2021-12-10 | 武汉永志科技有限公司 | Advertising lamp box convenient for switching advertisements and use method thereof |
| CN113936568A (en) * | 2021-10-15 | 2022-01-14 | 王云龙 | Self-early warning windproof billboard |
| CN114070192A (en) * | 2021-10-25 | 2022-02-18 | 深圳供电局有限公司 | New energy battery protector |
| CN114151668A (en) * | 2021-12-15 | 2022-03-08 | 日照职业技术学院 | Public regional computer display show fixed knot construct |
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| CN113936568A (en) * | 2021-10-15 | 2022-01-14 | 王云龙 | Self-early warning windproof billboard |
| CN114070192A (en) * | 2021-10-25 | 2022-02-18 | 深圳供电局有限公司 | New energy battery protector |
| CN114070192B (en) * | 2021-10-25 | 2024-05-03 | 深圳供电局有限公司 | New energy battery protection device |
| CN114151668A (en) * | 2021-12-15 | 2022-03-08 | 日照职业技术学院 | Public regional computer display show fixed knot construct |
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