CN112071232A - Advertising lamp box - Google Patents

Advertising lamp box Download PDF

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Publication number
CN112071232A
CN112071232A CN202011088913.5A CN202011088913A CN112071232A CN 112071232 A CN112071232 A CN 112071232A CN 202011088913 A CN202011088913 A CN 202011088913A CN 112071232 A CN112071232 A CN 112071232A
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CN
China
Prior art keywords
pipe
box
water
side wall
liquid
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Granted
Application number
CN202011088913.5A
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Chinese (zh)
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CN112071232B (en
Inventor
刘敏
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.)
Changde Xinyi Culture Communication Co ltd
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Changde Xinyi Culture Communication Co ltd
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Priority to CN202011088913.5A priority Critical patent/CN112071232B/en
Publication of CN112071232A publication Critical patent/CN112071232A/en
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Publication of CN112071232B publication Critical patent/CN112071232B/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/04Signs, boards or panels, illuminated from behind the insignia
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/04Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418Constructional details

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

The invention relates to an advertising lamp box, which relates to the technical field of advertising devices.A plurality of water tanks are fixedly arranged on a bracket, a first connecting pipe is fixedly arranged on the upper side wall of each water tank in a penetrating way, a water pump is fixedly arranged at the upper end of the bracket, a panel box is arranged in the bracket, a lining box is arranged in the panel box, a cavity is arranged between the panel box and the lining box, a liquid storage tank is fixedly arranged on the bracket, an outlet end pipeline of the water pump is connected on the upper side wall of the liquid storage tank in a penetrating way, a water inlet pipe is fixedly arranged at the lower end of the side wall of the liquid storage tank; the side wall of the box body is of a double-layer transparent structure, so that colored light-transmitting liquid can be filled between the double-layer structures, the light color of the light emitted by the light source in the lamp box is changed, the liquid with different colors can be replaced, and the effect of changing the light effect color emitted by the lamp box is achieved.

Description

Advertising lamp box
Technical Field
The invention relates to the technical field of advertising devices, in particular to an advertising lamp box.
Background
The advertising light boxes are bright at night and bright in color, and are selected as night advertising tools by a large number of merchants, generally, the merchants can post advertising words on the light boxes when using the advertising light boxes, and the advertising words are reflected by light sources sent out in the light boxes to achieve the effect of propaganda, but the existing advertising light boxes are single in color of the light sources, unchangeable in replacement, monotonous in ground color when the advertising light boxes are propagated, long-time use is easy to produce aesthetic fatigue, the advertising effect is reduced, and improvement is needed.
Disclosure of Invention
The invention aims to provide an advertising lamp box with reasonable design and convenient use aiming at the defects and the defects of the prior art, the side wall of the box body is provided with a double-layer transparent structure, so that colored transparent liquid can be filled between the double-layer structure, the light color of the light source in the lamp box after being emitted is changed, the liquid with different colors can be changed, and the effect of changing the light color emitted by the lamp box is achieved.
In order to achieve the purpose, the invention adopts the technical scheme that: the water storage tank comprises a bracket, water tanks, a water pump, a liquid storage tank, a panel box and an inner lining box, wherein the bracket is fixedly provided with a plurality of water tanks, the upper side wall of each water tank is fixedly penetrated with a first connecting pipe, the lower end of the first connecting pipe movably abuts against the lower inner side wall of the water tank, the upper end of the first connecting pipe is fixedly sleeved with a first inserting pipe sleeve, the upper end of the bracket is fixedly provided with the water pump, the upper end of the water pump is connected with a second connecting pipe through a flange, the movable end of the second connecting pipe is fixedly sleeved with a first inserting pipe head, the first inserting pipe head is movably inserted in the first inserting pipe sleeve, the panel box is arranged in the bracket, the inner lining box is arranged in the panel box, the outer side wall of the inner lining box is fixedly provided with a supporting column, the other end of the supporting column is fixedly arranged on the inner side wall of the panel box, a cavity, the lateral wall lower extreme of liquid storage pot is worn to establish and is fixed with the inlet tube, the inlet tube passes behind the lateral wall upper end of panel case, insert and establish in the cavity, the lateral wall lower extreme of panel case is worn to establish and is fixed with the outlet pipe, another pot head of outlet pipe is established and is fixed with No. two cannula heads, wear to establish No. three connecting pipes on the last lateral wall of water tank, the upper end cover of No. three connecting pipes is established and is fixed with No. two cannula covers, No. two cannula head activities are inserted and are established in No. two cannula covers, it is provided with a control valve to establish ties on No. three connecting pipes, the fixed light that is provided with on.
Further, four inside wall upper ends of support all be equipped with through the bearing soon and accomodate the roller, accomodate around being equipped with the filter cloth on the roller, the fixed balancing weight that is provided with of lower extreme of filter cloth, and the filter cloth activity supports and establishes on the inside wall of inside lining case, the both ends of accomodating the roller are all fixed and are provided with the bevel gear, the adjacent end of accomodating the roller of adjacent passes through bevel gear meshing transmission setting, rotatory one is accomodate the roller, then through the bevel gear transmission, it is rotatory to drive the roller of accomodating on four sides, and then put down the filter cloth, the filter cloth adopts diffuse reflection material, and then soft processing to the.
Furthermore, the lateral wall upper end of panel case wear to be equipped with the disappointing pipe, the other end of disappointing pipe wears to establish and fixes the lateral wall upper end at the liquid storage pot, the disappointing pipe balances the air pressure in the cavity.
Further, the lateral wall lower extreme of panel case wear to establish and be fixed with the desilting pipe, the end activity of desilting pipe is supported and is established on the lower lateral wall of cavity, is established ties on the desilting pipe and is provided with No. two control valves, washes the clear water in the cavity, the desilting pipe is with waste water direct discharge.
Furthermore, the lateral wall lower extreme of liquid storage pot wear to establish and be fixed with No. four connecting pipes, establish ties on No. four connecting pipes and be provided with No. three control valves, the exit end cover of No. four connecting pipes is established and is fixed with No. three insertion tube heads, docks with No. three connecting pipes through No. four connecting pipes, directly discharges the remaining liquid in the liquid storage pot into the water tank.
The working principle of the invention is as follows: the lighting lamp shines through the cavity between the panel box and the lining box, liquid with different colors is injected into the cavity, and light penetrates through colored liquid to realize the change of light color; when the water tank is used, according to the liquid injected according to needs, a first cannula head is inserted into a first cannula sleeve on the corresponding water tank, a second cannula head is inserted into a second cannula sleeve on the corresponding water tank, then the water tank and the cavity are connected and circulated, a first control valve is closed, a water pump is turned on, the water pump extracts the liquid in the water tank into a liquid storage tank through a first connecting pipe and a second connecting pipe which are connected in series, then the liquid in the liquid storage tank flows into the cavity through a water inlet pipe until the cavity is full, and at the moment, the light changes color and emits light through colored liquid; when the color needs to be changed, the first control valve is opened, liquid in the cavity is discharged into the water tank to be recycled, the second connecting pipe and the third connecting pipe are connected with the water tank which is correspondingly used, and the water adding step is repeated to realize color change of the light box.
After adopting the structure, the invention has the beneficial effects that:
1. a cavity is arranged between the panel box and the lining box, the panel box and the lining box are supported through support columns, colored light-transmitting liquid can be injected into the cavity, and then the lighting lamp in the lamp box emits light and changes color after passing through the colored liquid, so that the effect of changing the color of the lamp box is achieved;
2. the water pump is connected with a connecting pipe on the water tank through a second connecting pipe, the cavity is connected with a third connecting pipe on the water tank through a water outlet pipe, and then when liquid with different colors is injected into the cavity, the water tank corresponding to the pipeline connection is independently operated, so that the confusion of liquid adding can be prevented.
Drawings
In order to more clearly illustrate the embodiments of the present 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 present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a right side view of fig. 1.
Fig. 3 is a schematic view of a connection structure of the receiving roller in the present invention.
Fig. 4 is a sectional view a-a in fig. 1.
Fig. 5 is an enlarged view of a portion B in fig. 4.
Description of reference numerals:
support 1, water tank 2, No. 3 connecting pipes, No. 4 intubate covers, water pump 5, No. two connecting pipes 6, intubate head 7, liquid storage pot 8, inlet tube 9, outlet pipe 10, No. two intubate heads 11, No. three connecting pipes 12, No. two intubate covers 13, No. 14 control valves, accomodate roller 15, filter cloth 16, balancing weight 17, bevel gear 18, run-flat 19, desilting pipe 20, No. two control valves 21, No. four connecting pipes 22, No. three intubate heads 23, No. three control valves 24, panel case 25, inside lining case 26, light 27, support column 28.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-5, the present embodiment comprises a bracket 1, three water tanks 2, a water pump 5, a liquid storage tank 8, a panel box 25, and a lining box 26, wherein the bracket 1 is riveted with three water tanks 2, the upper side wall of the water tank 2 is fixedly provided with a first connecting pipe 3, the lower end of the first connecting pipe 3 is movably abutted against the lower inner side wall of the water tank 2, the upper end of the first connecting pipe 3 is fixedly sleeved with a first insertion pipe sleeve 4, the upper end of the bracket 1 is riveted with the water pump 5, the inlet end of the water pump 5 is flange-connected with a second connecting pipe 6, the movable end of the second connecting pipe 6 is fixedly sleeved with a first insertion pipe head 7, the first insertion pipe head 7 is movably inserted into the first insertion pipe sleeve 4, the panel box 25 is arranged in the bracket 1, the lining box 26 is arranged in the panel box 25, the outer side wall of the lining box 26 is riveted with a support column 28, the other end of the support column 28 is, a cavity 29 is arranged between the panel box 25 and the lining box 26, the support 1 is riveted with a liquid storage tank 8, an outlet end pipeline of the water pump 5 is connected to the upper side wall of the liquid storage tank 8 in a penetrating way, a water inlet pipe 9 is fixedly arranged at the lower end of the side wall of the liquid storage tank 8 in a penetrating way, the water inlet pipe 9 penetrates through the upper end of the side wall of the panel box 25 and is inserted into the cavity 29, a water outlet pipe 10 is fixedly arranged at the lower end of the side wall of the panel box 25 in a penetrating way, a second insertion pipe head 11 is fixedly sleeved at the other end of the water outlet pipe 10, a third connecting pipe 12 is fixedly arranged on the upper side wall of the water tank 2 in a penetrating way, a second insertion pipe sleeve 13 is fixedly sleeved at the upper end of the third connecting pipe 12, the second insertion pipe head 11 is movably inserted into the second insertion pipe sleeve 13, a first control valve;
the upper ends of four inner side walls of the bracket 1 are respectively provided with a containing roller 15 in a rotating way through bearings, the containing rollers 15 are wound with filter cloth 16, the lower ends of the filter cloth 16 are riveted with a balancing weight 17, the filter cloth 16 is movably abutted against the inner side wall of the lining box 26, two ends of each containing roller 15 are respectively riveted with a bevel gear 18, the adjacent ends of the adjacent containing rollers 15 are meshed with the bevel gears 18 for transmission, the filter cloth 16 is put down, the passing light is softly processed, the upper end of the side wall of the panel box 25 is penetrated with an air escape pipe 19, the other end of the air escape pipe 19 is penetrated and fixed at the upper end of the side wall of the liquid storage tank 8, the air escape pipe 19 is used for carrying out air pressure constant pressure processing on the inside of the cavity 29, the lower end of the side wall of the panel box 25 is penetrated and fixed with a desilting pipe 20, the end head of the desilting pipe 20 is movably abutted, the cavity 29 is flushed, waste water is directly discharged through the dredging pipe 20, the lower end of the side wall of the liquid storage tank 8 is fixedly provided with a fourth connecting pipe 22 in a penetrating manner, a third control valve 24 is serially connected onto the fourth connecting pipe 22, a third inserting pipe head 23 is fixedly arranged at the outlet end of the fourth connecting pipe 22 in a sleeved manner, and when residual liquid is in the liquid storage tank 8, the residual liquid in the liquid storage tank 8 can be directly discharged into the water tank 2 through the fourth connecting pipe 22 and the third connecting pipe 12 on the water tank 2.
The working principle of the specific embodiment is as follows: the illuminating lamp 27 emits light and penetrates through the cavity 29 between the panel box 25 and the lining box 26, liquid with different colors is injected into the cavity 29, and light penetrates through colored liquid to realize light color conversion; when the liquid storage device is used, liquid of different colors is respectively filled in different water tanks 2, a first cannula head 7 is inserted into a first cannula sleeve 4 on the corresponding water tank 2 according to liquid injected as required, a second cannula head 11 is inserted into a second cannula sleeve 13 on the corresponding water tank 2, then the water tank 2 and the cavity 29 are connected and circulated, a first control valve 14 is closed, a water pump 5 is opened, the water pump 5 extracts the liquid in the water tank 2 into a liquid storage tank 8 through a first connecting pipe 3 and a second connecting pipe 6 which are connected in series, then the liquid in the liquid storage tank 8 flows into the cavity 29 through a water inlet pipe 9 until the cavity 29 is full, and at the moment, light is changed in color and shines through colored liquid; when the color needs to be changed, the first control valve 14 is opened, the liquid in the cavity 29 is discharged into the water tank 2 to be recycled, the second connecting pipe 6 and the third connecting pipe 12 are connected with the water tank 2 which is correspondingly used, and the water adding step is repeated to realize the color change of the lamp box.
After adopting above-mentioned structure, this embodiment beneficial effect does:
1. a cavity 29 is formed between the panel box 25 and the lining box 26, the panel box 25 and the lining box 26 are supported through a support column 28, colored light-transmitting liquid can be injected into the cavity 29, and then the lighting lamp 27 in the lamp box emits light and changes color after passing through the colored liquid, so that the effect of changing the color of the lamp box is achieved;
2. water pump 5 is connected with a connecting pipe 3 on the water tank 2 through No. two connecting pipes 6, and cavity 29 is connected with No. three connecting pipes 12 on the water tank 2 through outlet pipe 10, and then when injecting the liquid of different colours into cavity 29, carries out work with the water tank 2 that the pipe connection corresponds alone, can prevent to obscure when the liquid feeding.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (6)

1. An advertising light box, its characterized in that: the water storage tank comprises a support (1), water tanks (2), a water pump (5), a liquid storage tank (8), a panel box (25) and a lining box (26), wherein the support (1) is fixedly provided with a plurality of water tanks (2), the upper side wall of each water tank (2) is fixedly provided with a first connecting pipe (3) in a penetrating manner, the lower end of each first connecting pipe (3) is movably abutted against the lower inner side wall of each water tank (2), the upper end of each first connecting pipe (3) is fixedly sleeved with a first inserting pipe sleeve (4), the upper end of the support (1) is fixedly provided with the water pump (5), the upper flange of the inlet end of the water pump (5) is connected with a second connecting pipe (6), the movable end of each second connecting pipe (6) is fixedly sleeved with a first inserting pipe head (7), the first inserting pipe head (7) is movably inserted in the first inserting pipe sleeve (4), the panel box (25) is arranged in the support (1), the lining box, a support column (28) is fixedly arranged on the outer side wall of the inner lining box (26), the other end of the support column (28) is fixedly arranged on the inner side wall of the panel box (25), a cavity (29) is arranged between the panel box (25) and the inner lining box (26), a liquid storage tank (8) is fixedly arranged on the support (1), an outlet end pipeline of the water pump (5) is connected to the upper side wall of the liquid storage tank (8) in a penetrating manner, a water inlet pipe (9) is fixedly arranged at the lower end of the side wall of the liquid storage tank (8) in a penetrating manner, the water inlet pipe (9) penetrates through the upper end of the side wall of the panel box (25) and is inserted into the cavity (29), a water outlet pipe (10) is fixedly arranged at the lower end of the side wall of the panel box (25) in a penetrating manner, a second inserting pipe head (11) is fixedly sleeved at the other end of the water outlet pipe (10), a third connecting pipe (12, the second cannula head (11) is movably inserted into the second cannula sleeve (13), the third connecting pipe (12) is provided with a first control valve (14) in series, the support (1) is fixedly provided with an illuminating lamp (27), and the illuminating lamp (27) is arranged in the lining box (26).
2. An advertising light box according to claim 1, wherein: four inside wall upper ends of support (1) all be equipped with through the bearing soon and accomodate roller (15), accomodate around being equipped with filtering cloth (16) on roller (15), the lower extreme of filtering cloth (16) is fixed and is provided with balancing weight (17), and filtering cloth (16) activity is supported and is established on the inside wall of inside lining case (26), the both ends of accomodating roller (15) are all fixed and are provided with bevel gear (18), adjacent end of accomodating roller (15) that adjacent passes through bevel gear (18) meshing transmission setting, rotatory one accomodates roller (15), then through bevel gear (18) transmission, it is rotatory to drive accomodating roller (15) on four sides, and then put down filtering cloth (16), filtering cloth (16) adopt diffuse reflection material, and then handle the soft light source that sees through.
3. An advertising light box according to claim 1, wherein: the upper end of the side wall of the panel box (25) is provided with an air release pipe (19) in a penetrating way, the other end of the air release pipe (19) is fixed at the upper end of the side wall of the liquid storage tank (8) in a penetrating way, and the air pressure in the cavity (29) is balanced by the air release pipe (19).
4. An advertising light box according to claim 1, wherein: the lower end of the side wall of the panel box (25) is fixedly provided with a dredging pipe (20) in a penetrating way, the end head of the dredging pipe (20) is movably abutted against the lower side wall of the cavity (29) and the dredging pipe (20) to be serially connected with a second control valve (21), clear water washing is carried out in the cavity (29), and waste water is directly discharged through the dredging pipe (20).
5. An advertising light box according to claim 1, wherein: the lateral wall lower extreme of liquid storage pot (8) wear to establish and be fixed with No. four connecting pipes (22), establish ties on No. four connecting pipes (22) and be provided with No. three control valve (24), the exit end cover of No. four connecting pipes (22) is established and is fixed with No. three cannula head (23), docks with No. three connecting pipe (12) through No. four connecting pipes (22), directly arranges into water tank (2) with the remaining liquid in liquid storage pot (8).
6. An advertising light box according to claim 1, wherein: the working principle is as follows: the illuminating lamp (27) emits light and penetrates through a cavity (29) between the panel box (25) and the lining box (26), liquid with different colors is injected into the cavity (29), and light penetrates through colored liquid to realize light color conversion; the liquid with different colors is respectively arranged in different water tanks (2), when the device is used, the liquid injected according to the requirement is inserted into a first cannula sleeve (4) on the corresponding water tank (2) and a second cannula sleeve (11) on the corresponding water tank (2), then the water tank (2) and the cavity (29) are connected and circulated, a first control valve (14) is closed, a water pump (5) is opened, the water pump (5) extracts the liquid in the water tank (2) into a liquid storage tank (8) through a first connecting pipe (3) and a second connecting pipe (6) which are connected in series, then the liquid in the liquid storage tank (8) flows into the cavity (29) through a water inlet pipe (9) until the cavity (29) is filled with the liquid, and at the moment, the light changes color and emits light through the colored liquid; when the color needs to be changed, the first control valve (14) is opened, liquid in the cavity (29) is discharged into the water tank (2) to be recycled, the second connecting pipe (6) and the third connecting pipe (12) are connected with the water tank (2) which is used correspondingly, and the water adding step is repeated to realize color change of the lamp box.
CN202011088913.5A 2020-10-13 2020-10-13 Advertising lamp box Active CN112071232B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011088913.5A CN112071232B (en) 2020-10-13 2020-10-13 Advertising lamp box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011088913.5A CN112071232B (en) 2020-10-13 2020-10-13 Advertising lamp box

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CN112071232A true CN112071232A (en) 2020-12-11
CN112071232B CN112071232B (en) 2022-03-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113077732A (en) * 2021-04-12 2021-07-06 红河学院 Novel LED picture-inserting lamp box

Citations (12)

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Publication number Priority date Publication date Assignee Title
GB1330179A (en) * 1969-10-13 1973-09-12 Winslow F T Display apparatus
CN2204061Y (en) * 1994-02-03 1995-07-26 时全中 Color-changing advertising board
CN2359770Y (en) * 1998-11-17 2000-01-19 陆静麟 Beverage advertising light box with moving sensation
CN2374942Y (en) * 1998-10-29 2000-04-19 党红明 Advertisement decoration lamp box
US20080303989A1 (en) * 2003-07-23 2008-12-11 Seiko Epson Corporation Color filter, display device having such color filter, electro-optic device having such color filter, electronic instrument having such color filter
DE202011051086U1 (en) * 2011-08-25 2011-10-21 Bernhard Maier Device for applying color to a natural surface
CN102483892A (en) * 2009-08-10 2012-05-30 株式会社兔创造 Light-emitting unit and device having a plurality of light-emitting units
CN207337876U (en) * 2017-05-19 2018-05-08 河南金诚晟电力通讯有限公司 Electric power tower warning sign
CN108711389A (en) * 2018-03-20 2018-10-26 中山市红典照明有限公司 A kind of advertisement projection lamp that projection pattern is variable
CN208400432U (en) * 2018-06-26 2019-01-18 河北中医学院 A kind of think of political affairs user's outreach showing device
CN111561643A (en) * 2020-05-25 2020-08-21 湖南联志健宁光电有限公司 Floor type LED display screen capable of preventing collision
CN211497398U (en) * 2019-10-16 2020-09-15 梁锦云 Light-variable glass

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1330179A (en) * 1969-10-13 1973-09-12 Winslow F T Display apparatus
CN2204061Y (en) * 1994-02-03 1995-07-26 时全中 Color-changing advertising board
CN2374942Y (en) * 1998-10-29 2000-04-19 党红明 Advertisement decoration lamp box
CN2359770Y (en) * 1998-11-17 2000-01-19 陆静麟 Beverage advertising light box with moving sensation
US20080303989A1 (en) * 2003-07-23 2008-12-11 Seiko Epson Corporation Color filter, display device having such color filter, electro-optic device having such color filter, electronic instrument having such color filter
CN102483892A (en) * 2009-08-10 2012-05-30 株式会社兔创造 Light-emitting unit and device having a plurality of light-emitting units
DE202011051086U1 (en) * 2011-08-25 2011-10-21 Bernhard Maier Device for applying color to a natural surface
CN207337876U (en) * 2017-05-19 2018-05-08 河南金诚晟电力通讯有限公司 Electric power tower warning sign
CN108711389A (en) * 2018-03-20 2018-10-26 中山市红典照明有限公司 A kind of advertisement projection lamp that projection pattern is variable
CN208400432U (en) * 2018-06-26 2019-01-18 河北中医学院 A kind of think of political affairs user's outreach showing device
CN211497398U (en) * 2019-10-16 2020-09-15 梁锦云 Light-variable glass
CN111561643A (en) * 2020-05-25 2020-08-21 湖南联志健宁光电有限公司 Floor type LED display screen capable of preventing collision

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113077732A (en) * 2021-04-12 2021-07-06 红河学院 Novel LED picture-inserting lamp box

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