CN111724686A - Flexible LED display screen - Google Patents
Flexible LED display screen Download PDFInfo
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- CN111724686A CN111724686A CN202010609867.2A CN202010609867A CN111724686A CN 111724686 A CN111724686 A CN 111724686A CN 202010609867 A CN202010609867 A CN 202010609867A CN 111724686 A CN111724686 A CN 111724686A
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- 238000004804 winding Methods 0.000 claims abstract description 29
- 230000002035 prolonged effect Effects 0.000 claims abstract description 19
- 238000005096 rolling process Methods 0.000 claims abstract description 18
- 239000000428 dust Substances 0.000 claims description 22
- 239000012459 cleaning agent Substances 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 4
- 238000006748 scratching Methods 0.000 claims description 4
- 230000002393 scratching effect Effects 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 description 21
- 239000002245 particle Substances 0.000 description 21
- 239000012535 impurity Substances 0.000 description 11
- 238000005299 abrasion Methods 0.000 description 4
- 230000000284 resting effect Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 206010028813 Nausea Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- -1 show windows Substances 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention belongs to the technical field of display screens, and particularly relates to a flexible LED display screen which comprises a rolling bin; a first shaft is rotatably connected in the winding bin, the periphery of the first shaft is fixedly connected with the roller through a support, a display screen is wound and fixed on the periphery of the roller, and one end, far away from the periphery of the first shaft, of the display screen extends to the outside of the winding bin through an inlet and outlet formed in the top of the winding bin; one end of the display screen, which is positioned outside the winding bin, is fixedly connected with a limiting rod, and the limiting rod is used for preventing the display screen from being excessively wound; one side of the display screen is provided with an elastic cushion layer, and the cushion layer is wound on the roller along with the display screen; one end of the cushion layer, which is far away from the roller, is wound on a second shaft, and two ends of the second shaft are rotatably connected with the winding bin; a first belt wheel is fixedly connected to the first shaft, a second belt wheel is fixedly connected to the second shaft at a position corresponding to the first belt wheel, and a belt is sleeved between the first belt wheel and the second belt wheel; according to the invention, the scratch of the display screen during rolling is reduced through the cushion layer, and the service life of the display screen is prolonged.
Description
Technical Field
The invention belongs to the technical field of display screens, and particularly relates to a flexible LED display screen.
Background
The three-dimensional display technology is also one of the main development directions of display screens, and in the existing three-dimensional display technology, the left eye and the right eye of a user usually have visual difference, so that the user can obtain a three-dimensional visual feeling in the brain. However, the technical experience is poor, and users are easy to feel dizzy and nausea when the users watch the beverage for a long time. Stereoscopic images differ from planar images in that stereoscopic graphics also have "depth". The flexible transparent display screen is a novel LED display technology which is rapidly developed in recent years, and is widely applied to positions of glass, show windows, glass curtain walls and the like due to the strong bending performance, the lightness and thinness and no space occupation.
Some technical solutions related to flexible display screens also appear in the prior art, for example, a chinese patent with application number 2018116382324 discloses a flexible LED display screen, which includes a display part and a control part, the display part includes a plurality of transparent flexible screens and a plurality of flexible light-transmitting plates, and uses a display screen playing surface as a reference surface, the transparent flexible screens and the flexible light-transmitting plates are arranged perpendicular to the reference surface, the transparent flexible screens and the flexible light-transmitting plates are mutually crossed and overlapped, and an insulating lubricant is filled between the transparent flexible screens and the flexible light-transmitting plates. A transparent conductive film and a plurality of LED chips are packaged in the transparent flexible screen, and the light emitting surfaces of the LED chips face the reference surface; the transparent conductive film is connected with a driving interface, and the driving interface is connected with the control part; the control part comprises a main control block and a plurality of sub-control blocks, the transparent flexible screen is connected with the sub-control blocks through a driving interface, and the sub-control blocks are connected with the main control block. The invention can display three-dimensional images, has strong stereoscopic impression and high use comfort. The screen can be bent, and the application range is wide; the utility model discloses a flexible display screen, including the display screen, the display screen is connected with the rolling in-process, the folding shape of display screen is utilized to the use of prior art in flexible display screen, fold or convolute the display screen, reached and reduced the display screen and be in the effect of the screen and transportation storage in-process volume, but the display screen is in the use, easy adhesion dust granule for the display screen is mixing with the higher dust granule of hardness easily in the rolling in-process after the screen, and then causes the fish tail to damage the display screen, reduces the life of display screen.
Therefore, the novel flexible LED display screen is provided, the cushion layer LED out through the second shaft is wound on the periphery of the drum along with the display screen, so that the display screen is prevented from being directly rubbed and scratched mutually in the winding process, meanwhile, the extrusion and scratching of the display screen by impurity particles are reduced, and the service life of the display screen is prolonged.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that in the prior art, dust particles are easy to adhere to a flexible display screen in the using process of the flexible display screen, so that the display screen is easy to be mixed with dust particles with higher hardness in the rolling process after screen resting, the display screen is scratched and damaged, and the service life of the display screen is shortened, the invention provides the flexible LED display screen.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a flexible LED display screen which comprises a rolling bin; a first shaft is rotatably connected in the rolling bin, the periphery of the first shaft is fixedly connected with the roller through a support, a coil spring is arranged on the first shaft, the outer ring of the coil spring is fixedly connected with the rolling bin, and the inner ring of the coil spring is fixedly connected with the first shaft; a display screen is wound on the periphery of the roller and fixed, and one end of the display screen, which is far away from the periphery of the first shaft, extends to the outside of the winding bin through an inlet and outlet formed in the top of the winding bin; one end of the display screen, which is positioned outside the winding bin, is fixedly connected with a limiting rod, and the limiting rod is used for preventing the display screen from being excessively wound; an elastic cushion layer is arranged on one side of the display screen, and the cushion layer is wound on the roller along with the display screen; one end of the cushion layer, which is far away from the roller, is wound on a second shaft, and two ends of the second shaft are rotatably connected with the winding bin; a first belt wheel is fixedly connected to the first shaft, a second belt wheel is fixedly connected to the second shaft at a position corresponding to the first belt wheel, and a belt is sleeved between the first belt wheel and the second belt wheel; scratch of the display screen during rolling is reduced through the cushion layer, and the service life of the display screen is prolonged; in the prior art, the display screen is folded or wound by utilizing the foldable shape of the display screen in the use process of the flexible display screen, so that the effect of reducing the volume of the display screen in the screen-resting and transportation and storage processes is achieved, but dust particles are easy to adhere to the display screen in the use process of the display screen, so that the dust particles with higher hardness are easy to be mixed in the winding process of the display screen after the display screen is resting, the display screen is further scratched and damaged, and the service life of the display screen is reduced. And then reduce the extrusion and the fish tail to the display screen, further reduce the damage of display screen, prolong the life of display screen.
Preferably, the cushion layer is made of a telescopic water-absorbing material, and the cushion layer is soaked with a volatile cleaning agent; the ratio of the linear speed of the roller to the peripheral linear speed of the second shaft is more than one; the cleaning effect of the cushion layer on the display screen is increased through the difference of the rotating speeds of the second shaft and the roller; because the ratio of the linear velocity of cylinder and No. two axle peripheries is greater than one for the rotational linear velocity of cylinder periphery is greater than the release rate of bed course, and then makes the bed course when convoluteing on the cylinder along with the display screen together, and the bed course is constantly lengthened, and then makes to produce relative slip between bed course and the display screen, cooperates the sanitizer that soaks in the bed course, can wash the display screen, further reduces the dust of adhesion on the display screen, guarantees the display effect of display screen.
Preferably, a group of elastic tubes are embedded in the cushion layer, a group of spray holes are formed in the elastic tubes, air is sprayed out when the elastic tubes are extruded, the volatilization speed of the cleaning agent is increased, and the service life of the display screen is further prolonged; when the bed course was constantly convoluteed on the cylinder along with the display screen, the bed course received the extrusion of display screen, and then make the elastic tube receive the extrusion, the compressed air that produces in the elastic tube is through the orifice blowout, and then increase the air flow rate in the bed course between the adjacent two-layer display screen, the volatilization velocity after the cleaning display screen was accomplished to the sanitizer in the further increase bed course, reduce the residue of sanitizer, and then reduce the damage that the display screen produced with the sanitizer contact for a long time, further prolong the life of display.
Preferably, the elastic pipes are arranged at intervals from the middle part of the cushion layer to the two sides, and the distribution density close to the two ends of the cushion layer is greater than that of the middle part of the cushion layer; the middle part of the cushion layer is provided with more elastic tubes, so that the volatilization efficiency of the cleaning agent of the cushion layer close to the middle part is further increased, and the service life of the display screen is further prolonged; through the concentrated arrangement of the elastic tube that is close to the bed course middle part, increase the efficiency that bed course middle part air flows to bed course both sides, and then further increase the air mass flow at bed course middle part, further increase the efficiency of volatilizing of sanitizer, the sanitizer that reduces the bed course middle part remains, further prolongs the life of display.
Preferably, a group of arc-shaped fan blades are uniformly distributed on the circumference of the inner periphery of the roller, a group of air inlet holes are formed in one side of the winding bin and correspond to the roller, and the inlet and the outlet are driven to exhaust air outwards by the rotation of the fan blades, so that the scratch of dust on the display screen is further reduced; the display screen is rotated and rolled up through the roller, the fan blades are driven to rotate, then the fan blades suck outside air through the air inlet holes, the air is accelerated and sent out, the air flowing fast is sprayed out through the inlet and the outlet, dust and impurity particles carried on the display screen are further cleaned, the dust and the impurity particles adhered to the display screen are reduced and are drawn into the display screen, the scratch of the display screen is further reduced, and the service life of the display is prolonged.
Preferably, the inlet and outlet are positioned at the upper side and the lower side of the display screen and are rotatably connected with guide rollers, the middle parts of the guide rollers are provided with a first hole along the axis direction, and the first hole is communicated with an air outlet of the roller; a group of annular grooves are uniformly formed in the periphery of the guide roller, and a group of second holes communicated with the first holes are uniformly distributed in the circumference of the bottom of each annular groove; high-speed airflow is sprayed out through the first hole and the second hole in a matching manner, so that the contact between the guide roller and the display screen is reduced, and the scratch of the display screen is further reduced; when the roller rotates and winds the display screen, part of rapidly flowing air generated by rotation of the fan blades is filled into the first hole and then is sprayed out of the second hole and is filled in the annular groove, so that an air curtain is formed on the periphery of the guide roller, contact between the display screen and the guide roller is further reduced, contact and abrasion of multiple displays of the guide roller are further reduced, and the service life of the displays is further prolonged.
The invention has the following beneficial effects:
1. according to the flexible LED display screen, the cushion layer LED out through the second shaft is wound on the periphery of the drum along with the display screen, so that the display screen is prevented from being directly scratched by friction in the winding process, and meanwhile, in the process that impurity particles adhered to the display screen are wound along with the display screen, the cushion layer has elasticity, so that the impurity particles are embedded into the cushion layer, extrusion and scratching on the display screen are reduced, the damage to the display screen is further reduced, and the service life of the display screen is prolonged.
2. According to the flexible LED display screen, when the roller rotates and winds up the display screen, part of rapidly flowing air generated by rotation of the fan blade is filled into the first hole, then is sprayed out of the second hole and is filled in the annular groove, so that an air curtain is formed on the periphery of the guide roller, contact between the display screen and the guide roller is further reduced, contact and abrasion of multiple displays of the guide roller are further reduced, and the service life of the display is further prolonged.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is a cross-sectional view of a blanket according to the present invention;
in the figure: the winding device comprises a winding bin 1, a first shaft 11, a roller 12, a display screen 13, an inlet and an outlet 14, a limiting rod 15, a cushion layer 16, a second shaft 17, a first belt wheel 18, a second belt wheel 19, an elastic pipe 2, fan blades 21, an air inlet hole 22, a guide roller 23, a first hole 24, an annular groove 25 and a second hole 26.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the flexible LED display screen of the present invention includes a rolling bin 1; a first shaft 11 is rotatably connected in the rolling bin 1, the periphery of the first shaft 11 is fixedly connected with a roller 12 through a support, a coil spring is arranged on the first shaft 11, the outer ring of the coil spring is fixedly connected with the rolling bin 1, and the inner ring of the coil spring is fixedly connected with the first shaft 11; a display screen 13 is wound on the periphery of the roller 12 and fixed, and one end of the display screen 13, which is far away from the periphery of the first shaft 11, extends to the outside of the winding bin 1 through an inlet and outlet 14 formed in the top of the winding bin 1; one end of the display screen 13, which is positioned outside the winding bin 1, is fixedly connected with a limiting rod 15, and the limiting rod 15 is used for preventing the display screen 13 from being excessively wound; an elastic cushion layer 16 is arranged on one side of the display screen 13, and the cushion layer 16 is wound on the roller 12 along with the display screen 13; one end of the cushion layer 16, which is far away from the roller 12, is wound on a second shaft 17, and two ends of the second shaft 17 are rotatably connected with the winding bin 1; a first belt wheel 18 is fixedly connected to the first shaft 11, a second belt wheel 19 is fixedly connected to the second shaft 17 at a position corresponding to the first belt wheel 18, and a belt is sleeved between the first belt wheel 18 and the second belt wheel 19; scratch of the display screen 13 during rolling is reduced through the cushion layer 16, and the service life of the display screen 13 is prolonged; in the prior art, in the use process of the flexible display screen, the foldable shape of the display screen 13 is utilized to fold or wind the display screen 13, so as to achieve the effect of reducing the volume of the display screen 13 in the screen-resting and transportation and storage processes, but dust particles are easily adhered to the display screen 13 in the use process, so that dust particles with higher hardness are easily mixed in the winding process of the display screen 13 after the screen-resting, the display screen 13 is scratched and damaged, and the service life of the display screen 13 is reduced, at the moment, when the first shaft 11 rotates under the action of the coil spring and drives the roller 12 to wind the display screen 13, the cushion layer 16 led out by the second shaft 17 is wound around the periphery of the roller 12 along with the display screen 13, so as to avoid direct mutual friction and scratch of the display screen 13 in the winding process, and meanwhile, when the impurity particles adhered to the display screen 13 are wound along with the display screen 13, because the cushion layer 16 has elasticity, impurity particles are embedded into the cushion layer 16, so that the extrusion and scratch to the display screen 13 are reduced, the damage to the display screen 13 is further reduced, and the service life of the display screen 13 is prolonged.
As an embodiment of the present invention, the cushion layer 16 is made of a stretchable water-absorbing material, and the cushion layer 16 is soaked with a volatile cleaning agent; the ratio of the linear speed of the roller 12 to the linear speed of the periphery of the second shaft 17 is more than one; the cleaning effect of the cushion layer 16 on the display screen 13 is increased through the difference between the rotating speeds of the second shaft 17 and the rotating speed of the roller 12; because the ratio of the linear speeds of the outer peripheries of the roller 12 and the second shaft 17 is greater than one, the rotating linear speed of the outer periphery of the roller 12 is greater than the release speed of the cushion layer 16, the cushion layer 16 is continuously stretched when being wound on the roller 12 along with the display screen 13, relative sliding is generated between the cushion layer 16 and the display screen 13, the display screen 13 can be cleaned by matching with the cleaning agent soaked in the cushion layer 16, dust adhered to the display screen 13 is further reduced, and the display effect of the display screen 13 is ensured.
As an embodiment of the present invention, a group of elastic tubes 2 is embedded in the cushion layer 16, a group of spray holes are formed in the elastic tubes 2, and air is sprayed out when the elastic tubes 2 are extruded, so as to increase the volatilization speed of the cleaning agent, and further prolong the service life of the display screen 13; when the bed course 16 is constantly convoluteed on cylinder 12 along with display screen 13, bed course 16 receives the extrusion of display screen 13, and then make elasticity pipe 2 receive the extrusion, the compressed air that produces in the elasticity pipe 2 is spout through the orifice, and then increase the air velocity in the bed course 16 between the adjacent two-layer display screen 13, the volatilization velocity after the completion of cleaning display screen 13 of sanitizer in the further bed course 16 that increases, reduce the residue of sanitizer, and then reduce the damage that display screen 13 produced with the sanitizer contact for a long time, the further life of extension display.
As an embodiment of the present invention, the elastic tubes 2 are arranged at intervals from the middle of the cushion layer 16 to both sides, and the distribution density near both ends of the cushion layer 16 is greater than the distribution density in the middle of the cushion layer 16; the middle part of the cushion layer 16 is provided with more elastic tubes 2, so that the volatilization efficiency of the cleaning agent of the cushion layer 16 close to the middle part is further increased, and the service life of the display screen 13 is further prolonged; through the concentrated arrangement of the elastic tube 2 close to the middle part of the cushion layer 16, the efficiency of the air in the middle part of the cushion layer 16 flowing to the two sides of the cushion layer 16 is increased, the air flow in the middle part of the cushion layer 16 is further increased, the volatilization efficiency of the cleaning agent is further increased, the cleaning agent residue in the middle part of the cushion layer 16 is reduced, and the service life of the display is further prolonged.
As an embodiment of the invention, a group of arc-shaped fan blades 21 are uniformly distributed on the inner circumference of the drum 12, a group of air inlet holes 22 are formed in one side of the winding bin 1 corresponding to the drum 12, and the inlet and outlet 14 is driven to exhaust air outwards by the rotation of the fan blades 21, so that the scratch of dust on the display screen 13 is further reduced; drive the fan blade 21 rotatory when rotatory and rolling display screen 13 through cylinder 12, and then make the fan blade 21 after the outside air of fresh air inlet 22 suction, accelerate and send out the air, and then make the air of fast flow spout through exit 14, further clear up the dust and the foreign particle who carry on the display screen 13, the dust and the foreign particle who reduce the adhesion on the display screen 13 are drawn into between the display screen 13, and then further reduce the fish tail of display screen 13, the life of extension display.
As an embodiment of the present invention, the inlet and outlet 14 is rotatably connected to guide rollers 23 at the upper and lower sides of the display screen 13, a first hole 24 is formed in the middle of the guide roller 23 along the axial direction, and the first hole 24 is communicated with the air outlet of the drum 12; a group of annular grooves 25 are uniformly formed in the periphery of the guide roller 23, and a group of second holes 26 communicated with the first holes 24 are uniformly formed in the bottom circumference of each annular groove 25; high-speed airflow is sprayed out through the first hole 24 and the second hole 26, so that the contact between the guide roller 23 and the display screen 13 is reduced, and the scratch of the display screen 13 is further reduced; when the roller 12 rotates and winds the display screen 13, part of rapidly flowing air generated by rotation of the fan blades 21 is filled in the first hole 24, and then is sprayed out of the second hole 26 and is filled in the annular groove 25, so that an air curtain is formed on the periphery of the guide roller 23, contact between the display screen 13 and the guide roller 23 is further reduced, contact and abrasion of multiple displays of the guide roller 23 are further reduced, and the service life of the displays is further prolonged.
When the flexible display screen works, in the using process of the flexible display screen in the prior art, the foldable shape of the display screen 13 is utilized to fold or wind the display screen 13, so as to achieve the effect of reducing the volume of the display screen 13 in the screen resting and transportation and storage processes, but dust particles are easy to adhere to the display screen 13 in the using process, so that dust particles with higher hardness are easy to be mixed in the winding process of the display screen 13 after the screen resting, the display screen 13 is scratched and damaged, and the service life of the display screen 13 is shortened, at the moment, when the first shaft 11 rotates under the action of the coil spring and drives the roller 12 to wind the display screen 13, the cushion layer 16 led out by the second shaft 17 is wound around the periphery of the roller 12 along with the display screen 13, so as to avoid the direct mutual friction and scratch of the display screen 13 in the winding process, and meanwhile, when the impurity particles adhered to the display screen 13 are wound along with the display screen 13, due to the fact that the cushion layer 16 has elasticity, the impurity particles are embedded into the cushion layer 16, extrusion and scratching to the display screen 13 are reduced, damage to the display screen 13 is further reduced, and the service life of the display screen 13 is prolonged; because the ratio of the linear speeds of the outer peripheries of the roller 12 and the second shaft 17 is greater than one, the rotational linear speed of the outer periphery of the roller 12 is greater than the release speed of the cushion layer 16, so that when the cushion layer 16 is wound on the roller 12 together with the display screen 13, the cushion layer 16 is continuously stretched, relative sliding is generated between the cushion layer 16 and the display screen 13, the display screen 13 can be cleaned by matching with the cleaning agent soaked in the cushion layer 16, dust adhered to the display screen 13 is further reduced, and the display effect of the display screen 13 is ensured; when the cushion layer 16 is continuously wound on the roller 12 along with the display screen 13, the cushion layer 16 is extruded by the display screen 13, so that the elastic tube 2 is extruded, compressed air generated in the elastic tube 2 is sprayed out through the spray holes, the air flow rate in the cushion layer 16 between two adjacent layers of display screens 13 is increased, the volatilization speed of the cleaning agent in the cushion layer 16 after the cleaning of the display screens 13 is finished is further increased, the residue of the cleaning agent is reduced, the damage of the display screens 13 caused by long-time contact with the cleaning agent is further reduced, and the service life of the display is further prolonged; the centralized arrangement of the elastic tubes 2 close to the middle part of the cushion layer 16 increases the efficiency of the air in the middle part of the cushion layer 16 flowing to the two sides of the cushion layer 16, further increases the air flow in the middle part of the cushion layer 16, further increases the volatilization efficiency of the cleaning agent, reduces the cleaning agent residue in the middle part of the cushion layer 16, and further prolongs the service life of the display; the roller 12 rotates and winds the display screen 13 to drive the fan blades 21 to rotate, so that the fan blades 21 suck external air through the air inlet holes 22, the air is accelerated and sent out, the fast flowing air is sprayed out through the inlet and outlet 14, dust and impurity particles carried on the display screen 13 are further cleaned, the dust and the impurity particles adhered to the display screen 13 are reduced and are wound between the display screen 13, the scratch of the display screen 13 is further reduced, and the service life of the display is prolonged; when the roller 12 rotates and winds the display screen 13, part of rapidly flowing air generated by rotation of the fan blades 21 is filled in the first hole 24, and then is sprayed out of the second hole 26 and is filled in the annular groove 25, so that an air curtain is formed on the periphery of the guide roller 23, contact between the display screen 13 and the guide roller 23 is further reduced, contact and abrasion of multiple displays of the guide roller 23 are further reduced, and the service life of the displays is further prolonged.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a flexible LED display screen which characterized in that: comprises a rolling bin (1); a first shaft (11) is rotatably connected in the rolling bin (1), the periphery of the first shaft (11) is fixedly connected with a roller (12) through a support, a coil spring is arranged on the first shaft (11), the outer ring of the coil spring is fixedly connected with the rolling bin (1), and the inner ring of the coil spring is fixedly connected with the first shaft (11); the periphery of the roller (12) is wound and is fixedly provided with a display screen (13), and one end, far away from the periphery of the first shaft (11), of the display screen (13) extends to the outside of the winding bin (1) through an inlet and an outlet (14) formed in the top of the winding bin (1); one end, located outside the winding bin (1), of the display screen (13) is fixedly connected with a limiting rod (15), and the limiting rod (15) is used for preventing the display screen (13) from being excessively wound; an elastic cushion layer (16) is arranged on one side of the display screen (13), and the cushion layer (16) is wound on the roller (12) along with the display screen (13); one end of the cushion layer (16) far away from the roller (12) is wound on a second shaft (17), and two ends of the second shaft (17) are rotatably connected with the winding bin (1); a first belt wheel (18) is fixedly connected to the first shaft (11), a second belt wheel (19) is fixedly connected to the second shaft (17) at a position corresponding to the first belt wheel (18), and a belt is sleeved on the first belt wheel (18) and the second belt wheel (19); scratch of the display screen (13) during rolling is reduced through the cushion layer (16), and the service life of the display screen (13) is prolonged.
2. The flexible LED display screen of claim 1, wherein: the cushion layer (16) is made of a telescopic water absorption material, and volatile cleaning agents are soaked in the cushion layer (16); the ratio of the linear speed of the roller (12) to the linear speed of the periphery of the second shaft (17) is more than one; the cleaning effect of the cushion layer (16) on the display screen (13) is increased through the difference of the rotating speed of the second shaft (17) and the rotating speed of the roller (12).
3. The flexible LED display screen of claim 2, wherein: inlay in bed course (16) and have a set of elasticity pipe (2), seted up a set of orifice on elasticity pipe (2), spout the air through elasticity pipe (2) extrusion time, increase the volatilization speed of sanitizer, further prolong the life of display screen (13).
4. The flexible LED display screen of claim 3, wherein: the elastic pipes (2) are arranged at intervals from the middle part of the cushion layer (16) to the two sides, and the distribution density of the elastic pipes close to the two ends of the cushion layer (16) is greater than that of the middle part of the cushion layer (16); set up more elasticity pipe (2) through bed course (16) middle part, further increase bed course (16) and be close to the volatilization efficiency of middle part sanitizer, further prolong the life of display screen (13).
5. The flexible LED display screen of claim 4, wherein: a group of arc-shaped fan blades (21) are uniformly distributed on the inner circumference of the drum (12), a group of air inlet holes (22) are formed in one side of the winding bin (1) and correspond to the drum (12), the inlet and the outlet (14) are driven to exhaust air outwards when the fan blades (21) rotate, and therefore scratching of the display screen (13) by dust is further reduced.
6. The flexible LED display screen of claim 5, wherein: the inlet and outlet (14) is positioned at the upper side and the lower side of the display screen (13) and is rotatably connected with a guide roller (23), a first hole (24) is formed in the middle of the guide roller (23) along the axis direction, and the first hole (24) is communicated with an air outlet of the roller (12); a group of annular grooves (25) are uniformly formed in the periphery of the guide roller (23), and a group of second holes (26) communicated with the first holes (24) are uniformly distributed on the circumference of the bottom of each annular groove (25); high-speed airflow is ejected through the first hole (24) and the second hole (26), so that the contact between the guide roller (23) and the display screen (13) is reduced, and the scratch of the display screen (13) is further reduced.
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| CN111724686B (en) | 2022-04-22 |
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