CN108346385A - A kind of rotary-type information display lamp box - Google Patents
A kind of rotary-type information display lamp box Download PDFInfo
- Publication number
- CN108346385A CN108346385A CN201810125783.4A CN201810125783A CN108346385A CN 108346385 A CN108346385 A CN 108346385A CN 201810125783 A CN201810125783 A CN 201810125783A CN 108346385 A CN108346385 A CN 108346385A
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- CN
- China
- Prior art keywords
- live spindle
- driving
- main shaft
- display lamp
- rotary
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
- G09F11/02—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being secured to rotating members, e.g. drums, spindles
- G09F11/10—Electrical control therefor
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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 present invention relates to a kind of rotary-type information display lamp boxes, including box style substructure, are rotatably connected to live spindle thereon.It is equipped with the first driving means and the second driving device of driving live spindle in pedestal, information exhibition device is connected in live spindle.First driving means include manual drive mechanism and provide the first transmission mechanism of drive connection for manual drive mechanism and live spindle, and the first transmission mechanism includes the bevel gear set being sequentially connected with live spindle.Second driving device includes decelerating motor and provides the second transmission mechanism of drive connection for decelerating motor and live spindle.Live spindle is divided into two sections of upper and lower main shaft, and the first electromagnetic clutch is equipped between the two, and bevel gear set and the second transmission mechanism set up separately on upper and lower main shaft.Information exhibition device includes the exhibition bottom plate affixed with upper main shaft, and multigroup supporting rod is longitudinally equipped in the top surface of exhibition bottom plate.It is inserted with information panel between the forward surface of adjacent two supporting rod, further includes light source.
Description
Technical field
The present invention relates to advertising device technical field more particularly to a kind of rotary-type information display lamp boxes.
Background technology
With the development of economy, miscellaneous exhibition emerges one after another, and display lamp box is the important articles for use in exhibition, displaying
Lamp box is a kind of light supply apparatus, and pattern or light transmission piece the showing with illumination in front of it are made using light source.Advertising lamp box collection rainbow
The advantages of lamp, continual can flash on daytime, is association of activity and inertia and attracts much attention at night.At present absolutely mostly
Number, exhibition are required for several information display lamp boxes, on the one hand occupy more floor space, and another aspect exhibitor staff is joining
These information lamp boxes are only looked for just to need to waste more time during exhibition, in addition, existing display lamp box structure is relatively
Complexity, installing and dismounting is inconvenient, and cannot be needed and be rotated according to the observation of the masses, to reduce propaganda quality.
Invention content
The present invention provides a kind of rotation of structure design advantages of simple to solve technical problem present in known technology
Formula information display lamp box, the display lamp box can place different information on multiple faces, and by rotating or manually rotating automatically
Make exhibitor staff that can read more Tradeshows on same display lamp box.
The present invention is adopted the technical scheme that solve technical problem present in known technology：A kind of rotary-type information
Display lamp box, includes the box style substructure with inner cavity, and box style substructure is rotatably connected to longitudinal live spindle across its top surface；
The inner cavity of box style substructure is equipped with the first driving means and the second driving device that rotation driving is provided for live spindle, is led in rotation
Information exhibition device is fixedly connected on the periphery wall of axis；
The first driving means include a manual drive mechanism and provide biography for manual drive mechanism and live spindle
First transmission mechanism of dynamic connection, and the first transmission mechanism includes the bevel gear set being sequentially connected with live spindle；Described second
Driving device includes decelerating motor and provides the second transmission mechanism of drive connection for decelerating motor and live spindle；
The live spindle is divided into two sections of main shaft and lower main shaft, and the two adjacent end portion is equipped with the first electricity for transmitting torsion
Magnet clutch, the bevel gear set and the second transmission mechanism are separately positioned on the periphery wall of main shaft and lower main shaft；
Described information exhibition device includes the exhibition bottom plate with the periphery wall Joint of upper main shaft, in the top surface of exhibition bottom plate
Longitudinal direction is connected with multigroup supporting rod；Supporting rod carries multigroup side, and the forward surface of adjacent two supporting rod offers sliding slot, and
Information panel is inserted in sliding slot；The upper main shaft is equipped with a hollow cavity, and the periphery wall of this hollow cavity is transparent material
Matter is equipped with light source in hollow cavity.
Preferably：The manual drive mechanism includes being fixed in the first axle bed of box style substructure bottom, on the first axle bed
It is rotatably connected to the driving shaft being laterally arranged, one-way clutch is equipped on the periphery wall of driving shaft, and pass through one-way clutch
It is connected with the pedal that driving shaft can be driven to rotate；Resetting spring is equipped between pedal and the first axle bed.
Preferably：First transmission mechanism include be located at manual drive mechanism above and with box style substructure Joint
Support plate is connected with the second axle bed in the top surface of support plate, driven shaft is rotatably connected on the second axle bed；Driven shaft and active
The axial direction of axis is parallel, and is equipped with belt transmission pair therebetween；The bevel gear set includes the active being arranged in driven shaft end
Bevel gear and the driven wheel of differential in upper main shaft periphery wall is set, and drive bevel gear and driven wheel of differential are meshed.
Preferably：The belt transmission pair includes being arranged in the driving pulley of active shaft end and setting in driven shaft periphery
The driven pulley of wall further includes the transmission belt that driving pulley and driven pulley are sequentially connected.
Preferably：The driven shaft is divided into two sections of coaxial line, and is equipped between the adjacent end of the two and transmits torsion
Second electromagnetic clutch, second electromagnetic clutch are arranged between driven pulley and drive bevel gear.
Preferably：Second transmission mechanism includes the driving gear being arranged in reducing motor output shaft, further includes setting
The driven gear set on the periphery wall of lower main shaft and be meshed with driving gear.
Preferably：Offer blind hole on the side wall of sliding slot, and be equipped with spring in blind hole, be connected on spring with it is blind
The coaxial hold-down column in hole.
Preferably：The end of described information panel is connected with the sliding block to match with sliding slot shape.
The advantages and positive effects of the present invention are：The present invention provides a kind of rotary-type information display lamp boxes, with existing skill
Art is compared, and the present invention is provided with multiple faces, can be equipped with displaying information on each face, the lamp box is enable to show more letters
Breath, information panel and supporting rod are to plug to be slidably connected, and quick detachable installation while is convenient for putting up displaying information；Pass through the electricity that slows down
Machine drives driving gear and driven gear rotation, and then lamp box is driven to rotate automatically, exhibitor staff can be made to be not required to movement i.e. considerable
See more information；Exhibitor staff can also be such that lamp box is rotated according to personal inclination, increase a surname by foot pedal simultaneously
Mass transfer amount.
Description of the drawings
Fig. 1 is the main view schematic cross-sectional view of the preferred embodiment for the present invention；
Fig. 2 is the box style substructure internal structure schematic diagram of the present invention；
Fig. 3 is the A-A sectional views in Fig. 1；
Fig. 4 is the enlarged diagram of regional area B in Fig. 3；
Fig. 5 is the overlooking structure diagram of the present invention.
In figure：1, box style substructure；2, first driving means；W1, manual drive mechanism；W2, the first transmission mechanism；2-1,
One axle bed；2-2, driving shaft；2-3, pedal；2-4, resetting spring；2-5, driving pulley；2-6, transmission belt；2-7, support plate；2-
8, driven shaft；2-9, the second axle bed；2-10, driven pulley；2-11, the second electromagnetic clutch；2-12, drive bevel gear；2-13、
Driven wheel of differential；3, the second driving device；3-1, decelerating motor；W3, the second transmission mechanism；3-2, driving gear；It is 3-3, driven
Gear；4, live spindle；4-1, lower main shaft；4-2, upper main shaft；4-3, the first electromagnetic clutch；5, bottom plate is puted on display；6, supporting rod；
6-1, sliding slot；7, information panel；7-1, sliding block；8, top plate；9, light source；10, spring；11, hold-down column.
Specific implementation mode
In order to further understand the content, features and effects of the present invention, hereby lifting following embodiment, detailed description are as follows：
Refer to Fig. 1 to Fig. 5, the present invention includes the box style substructure 1 with inner cavity, box style substructure 1 be rotatably connected to across
Longitudinal live spindle 4 of its top surface.The first driving that rotation driving is provided for live spindle 4 is equipped in the inner cavity of box style substructure 1
Device 2 and the second driving device 3, are fixedly connected with information exhibition device on the periphery wall of live spindle 4.
As shown in Fig. 2, the first driving means 2 include a manual drive mechanism W1 and for manual drive mechanism W1 and
Live spindle 4 provides the first transmission mechanism W2 being sequentially connected, and the first transmission mechanism W2 includes being sequentially connected with live spindle 4
Bevel gear set.Second driving device 3 includes decelerating motor 3-1 and is that decelerating motor 3-1 and live spindle 4 provide biography
Second transmission mechanism W3 of dynamic connection.
The live spindle 4 is divided to for upper main shaft 4-2 and lower two sections of main shaft 4-1, and the two adjacent end portion is equipped with and transmits torsion
The first electromagnetic clutch 4-3, the bevel gear set and the second transmission mechanism W3 are separately positioned on main shaft 4-2 and lower main shaft 4-
On 1 periphery wall.
As shown in figures 1 and 3, described information exhibition device includes the exhibition bottom with the periphery wall Joint of upper main shaft 4-2
Plate 5 is longitudinally connected with multigroup supporting rod 6 in the top surface of exhibition bottom plate 5.Supporting rod 6 in the present embodiment is 6 groups.6 band of supporting rod
There is multigroup side, and the forward surface of adjacent two supporting rod 6 offers sliding slot 6-1, and is inserted with information panel in sliding slot 6-1
7, information panel 7 is transparent material, and acrylic material can be used and be made.The upper main shaft 4-2 is equipped with a hollow cavity, and in this
The periphery wall of empty inner cavity is transparent material, and acrylic material can be used and be made.It is equipped with light source 9 in hollow cavity.With further reference to
Fig. 5 is connected with top plate 8 in the top side detachable of supporting rod 6 and information panel 7, and can be equipped with through-hole, this through-hole on top plate 8
The electric wire of position of source connection light source 9 can be made to pass through.The light source 9 is not rotated with the rotation of live spindle 4.
With further reference to Fig. 2, the manual drive mechanism W1 includes the first axle bed 2-1 for being fixed in 1 bottom of box style substructure,
The driving shaft 2-2 being laterally arranged is rotatably connected on the first axle bed 2-1, on the periphery wall of driving shaft 2-2 be equipped with unidirectionally from
Clutch, and the pedal 2-3 that driving shaft 2-2 can be driven to rotate is connected with by one-way clutch.In pedal 2-3 and the first axle bed 2-
Resetting spring 2-4 is equipped between 1.
The first transmission mechanism W2 include be located above manual drive mechanism W1 and with the branch of 1 Joint of box style substructure
Fagging 2-7 is connected with the second axle bed 2-9 in the top surface of support plate 2-7, driven shaft 2- is rotatably connected on the second axle bed 2-9
8.Driven shaft 2-8 is parallel with the axial direction of driving shaft 2-2, and is equipped with belt transmission pair therebetween.The bevel gear set includes setting
Set the ends driven shaft 2-8 drive bevel gear 2-12 and the driven wheel of differential 2-13 in upper main shaft 4-2 periphery walls is set, and it is main
Dynamic bevel gear 2-12 and driven wheel of differential 2-13 are meshed.
The belt transmission pair includes being arranged in the driving pulley 2-5 of the ends driving shaft 2-2 and setting outside driven shaft 2-8
The driven pulley 2-10 of peripheral wall further includes the transmission belt 2-6 that driving pulley 2-5 and driven pulley 2-10 are sequentially connected.
In other embodiments, the belt transmission pair can be also transformed to according to actual demand gear drive etc. other transmission
It is secondary
The transmission ratio of driven pulley 2-10 and driving pulley 2-5 are 1 in the present embodiment:2, drive bevel gear 2-12 and from
The transmission ratio of dynamic bevel gear 2-13 is 1:1, in actual operation pedal 2-3 trample 30 ° of a rotational angle, driving pulley 2-5
About 1/12 circle of rotation, about 1/6 circle of driven pulley 2-10 rotations, i.e. pedal 2-3, which is stepped on, steps on 6 one circles of information exhibition device rotation.
It is two sections of coaxial line that the driven shaft 2-8, which is divided to, and is equipped between the adjacent end of the two and transmits the second of torsion
Electromagnetic clutch 2-11, the second electromagnetic clutch 2-11 settings are between driven pulley 2-10 and drive bevel gear 2-12.
In use, when the second electromagnetic clutch 2-11 is powered under engagement state, the first electromagnetic clutch 4-3 power-off
In discrete state；When first electromagnetic clutch 4-3 is powered under engagement state, the second electromagnetic clutch 2-11 power-off is in
Discrete state.
In use, operating personnel are with foot pushes pedals 2-3, the reciprocating motion of pedal Pedal 2-3, and pass through one-way clutch
It is the rotation driving for driving driving shaft 2-2 by power-conversion, the second electromagnetic clutch 2-11 is in energized state, the first electricity at this time
Magnet clutch 4-3 is in off-position.The rotational power of driving shaft 2-2 passes through driving pulley 2-5, driven pulley 2-10 and transmission
Band 2-6, which is driven, gives driven shaft 2-8, then is transmitted to information exhibition device by drive bevel gear 2-12 and driven wheel of differential 2-13.
The second transmission mechanism W3 includes the driving gear 3-2 being arranged on decelerating motor 3-1 output shafts, further includes setting
Set the driven gear 3-3 being meshed on the periphery wall of lower main shaft 4-1 and with driving gear 3-2.The half of the driven gear 3-3
Diameter is more than the radius of driving gear 3-2, to realize rotating ratio so that live spindle 4 can drive information exhibition device slow
Rotation.When decelerating motor 3-1 is opened, the second electromagnetic clutch 2-11 is in energization bonding state, the second electromagnetic clutch 2-11
In power-off discrete state.
With further reference to 3 and Fig. 4, blind hole is offered on the side wall of sliding slot 6-1, and spring 10 is equipped in blind hole,
The hold-down column 11 coaxial with blind hole is connected on spring 10, hold-down column 11 can play the role of holding out against to information panel 7.In other realities
It applies in example, spring catch has been can be threaded connection in blind hole.
The end of described information panel 7 is connected with the sliding block 7-1 to match with sliding slot 6-1 shapes.In the present invention, neighbour two
Information panel 7 between supporting rod 6 can be one piece or two pieces symmetrically arranged, if two pieces, then two adjacent sliding block 7-1
Shape after docking with sliding slot 6-1 matches.
The present invention can drive driving gear 3-2 and driven gear 3-3 rotations by decelerating motor 3-1, and then drive lamp box
Automatic rotation can make exhibitor staff be not required to movement and may be viewed by more information.Exhibitor staff can also pass through foot pedal simultaneously
2-3 makes lamp box be rotated according to personal inclination, increases propaganda quality.
Claims (8)
1. a kind of rotary-type information display lamp box, it is characterized in that：Include the box style substructure (1) with inner cavity, box style substructure (1) turns
The dynamic longitudinal live spindle (4) being connected with across its top surface；It is equipped in the inner cavity of box style substructure (1) and is provided for live spindle (4)
The first driving means (2) and the second driving device (3) for rotating driving, are fixedly connected on the periphery wall of live spindle (4)
Information exhibition device；
The first driving means (2) include a manual drive mechanism (W1) and are manual drive mechanism (W1) and live spindle
(4) the first transmission mechanism (W2) being sequentially connected is provided, and the first transmission mechanism (W2) includes being sequentially connected with live spindle (4)
Bevel gear set；Second driving device (3) includes decelerating motor (3-1) and is decelerating motor (3-1) and live spindle
(4) the second transmission mechanism (W3) being sequentially connected is provided；
The live spindle (4) is divided into two sections of main shaft (4-2) and lower main shaft (4-1), and the two adjacent end portion is equipped with to transmit and turn round
The first electromagnetic clutch (4-3) of power, the bevel gear set and the second transmission mechanism (W3) be separately positioned on main shaft (4-2) and
On the periphery wall of lower main shaft (4-1)；
Described information exhibition device include with the exhibition bottom plate of the periphery wall Joint of upper main shaft (4-2) (5), exhibition bottom plate
(5) top surface is longitudinally connected with multigroup supporting rod (6)；Supporting rod (6) carries multigroup side, and the phase of adjacent two supporting rod (6)
Sliding slot (6-1) is offered to face, and is inserted with information panel (7) in sliding slot (6-1)；The upper main shaft (4-2) is equipped with one
Hollow cavity, and the periphery wall of this hollow cavity is transparent material, and light source (9) is equipped in hollow cavity.
2. rotary-type information display lamp box as described in claim 1, it is characterized in that：The manual drive mechanism (W1) includes solid
It is connected on first axle bed (2-1) of box style substructure (1) bottom, the active being laterally arranged is rotatably connected on the first axle bed (2-1)
Axis (2-2) is equipped with one-way clutch on the periphery wall of driving shaft (2-2), and is connected with by one-way clutch and can drive master
The pedal (2-3) of moving axis (2-2) rotation；Resetting spring (2-4) is equipped between pedal (2-3) and the first axle bed (2-1).
3. rotary-type information display lamp box as claimed in claim 2, it is characterized in that：First transmission mechanism (W2) includes position
Above the manual drive mechanism (W1) and with the support plate (2-7) of box style substructure (1) Joint, in the top surface of support plate (2-7)
It is connected with the second axle bed (2-9), driven shaft (2-8) is rotatably connected on the second axle bed (2-9)；Driven shaft (2-8) and active
The axial direction of axis (2-2) is parallel, and is equipped with belt transmission pair therebetween；The bevel gear set includes being arranged at driven shaft (2-8)
The drive bevel gear (2-12) of end and setting are in the driven wheel of differential (2-13) of upper main shaft (4-2) periphery wall, and active conical tooth
Wheel (2-12) and driven wheel of differential (2-13) are meshed.
4. rotary-type information display lamp box as claimed in claim 3, it is characterized in that：The belt transmission pair includes being arranged in master
The driving pulley (2-5) of the end moving axis (2-2) and setting further include in the driven pulley (2-10) of driven shaft (2-8) periphery wall
The transmission belt (2-6) that driving pulley (2-5) and driven pulley (2-10) are sequentially connected.
5. rotary-type information display lamp box as claimed in claim 4, it is characterized in that：The driven shaft (2-8) is divided into coaxial line
Two sections, and between the adjacent end of the two be equipped with transmit torsion the second electromagnetic clutch (2-11), second electromagnetism from
Clutch (2-11) is arranged between driven pulley (2-10) and drive bevel gear (2-12).
6. rotary-type information display lamp box as described in claim 1, it is characterized in that：Second transmission mechanism (W3) includes setting
The driving gear (3-2) on decelerating motor (3-1) output shaft is set, further includes being arranged on the periphery wall of lower main shaft (4-1) simultaneously
The driven gear (3-3) being meshed with driving gear (3-2).
7. rotary-type information display lamp box as described in claim 1, it is characterized in that：It is offered on the side wall of sliding slot (6-1)
Blind hole, and spring (10) is equipped in blind hole, the hold-down column coaxial with blind hole (11) is connected on spring (10).
8. rotary-type information display lamp box as described in claim 1, it is characterized in that：The end of described information panel (7) is affixed
There is the sliding block (7-1) to match with sliding slot (6-1) shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810125783.4A CN108346385A (en) | 2018-02-08 | 2018-02-08 | A kind of rotary-type information display lamp box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810125783.4A CN108346385A (en) | 2018-02-08 | 2018-02-08 | A kind of rotary-type information display lamp box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108346385A true CN108346385A (en) | 2018-07-31 |
Family
ID=62959378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810125783.4A Pending CN108346385A (en) | 2018-02-08 | 2018-02-08 | A kind of rotary-type information display lamp box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108346385A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109785715A (en) * | 2019-03-22 | 2019-05-21 | 西安文理学院 | A kind of rotary-type magnetic three-dimensional geometrical figure displaying device |
| CN110718166A (en) * | 2019-12-04 | 2020-01-21 | 芜湖喜乐文化旅游传媒有限公司 | Tourism project plan show fence |
| CN112927575A (en) * | 2021-01-25 | 2021-06-08 | 焦作大学 | Auxiliary device suitable for teaching of Chinese language and literature specialty |
| CN112951111A (en) * | 2021-01-29 | 2021-06-11 | 陕西中医药大学 | Culture media advertisement device based on internet |
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| GB213529A (en) * | 1923-03-29 | 1924-06-12 | Christian Gleerup Moeller | Improvements in and relating to advertising apparatus |
| CN2591702Y (en) * | 2002-11-04 | 2003-12-10 | 四川德阳艾特科技有限公司 | Rolling pictures advertising machine |
| CN2630986Y (en) * | 2003-06-07 | 2004-08-04 | 唐海涛 | Multi picture advertising apparatus |
| CN1727593A (en) * | 2005-07-13 | 2006-02-01 | 王寰 | Multifunctional rotational pavilion in use for propagation of civic landscape and commercial advertising, and being as tea garden |
| CN2849881Y (en) * | 2005-10-14 | 2006-12-20 | 黄顶山 | Multi-picture advertisement showing device |
| CN2909441Y (en) * | 2006-06-02 | 2007-06-06 | 宣云云 | Multi-picture rolling mechanical of easy to controlled |
| CN203689846U (en) * | 2014-01-14 | 2014-07-02 | 长沙信元电子科技有限公司 | Turnover player with limiting device |
| CN107045840A (en) * | 2017-03-28 | 2017-08-15 | 广东黑桃创意广告策划有限公司 | A kind of advertising lamp box |
-
2018
- 2018-02-08 CN CN201810125783.4A patent/CN108346385A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB213529A (en) * | 1923-03-29 | 1924-06-12 | Christian Gleerup Moeller | Improvements in and relating to advertising apparatus |
| CN2591702Y (en) * | 2002-11-04 | 2003-12-10 | 四川德阳艾特科技有限公司 | Rolling pictures advertising machine |
| CN2630986Y (en) * | 2003-06-07 | 2004-08-04 | 唐海涛 | Multi picture advertising apparatus |
| CN1727593A (en) * | 2005-07-13 | 2006-02-01 | 王寰 | Multifunctional rotational pavilion in use for propagation of civic landscape and commercial advertising, and being as tea garden |
| CN2849881Y (en) * | 2005-10-14 | 2006-12-20 | 黄顶山 | Multi-picture advertisement showing device |
| CN2909441Y (en) * | 2006-06-02 | 2007-06-06 | 宣云云 | Multi-picture rolling mechanical of easy to controlled |
| CN203689846U (en) * | 2014-01-14 | 2014-07-02 | 长沙信元电子科技有限公司 | Turnover player with limiting device |
| CN107045840A (en) * | 2017-03-28 | 2017-08-15 | 广东黑桃创意广告策划有限公司 | A kind of advertising lamp box |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109785715A (en) * | 2019-03-22 | 2019-05-21 | 西安文理学院 | A kind of rotary-type magnetic three-dimensional geometrical figure displaying device |
| CN110718166A (en) * | 2019-12-04 | 2020-01-21 | 芜湖喜乐文化旅游传媒有限公司 | Tourism project plan show fence |
| CN112927575A (en) * | 2021-01-25 | 2021-06-08 | 焦作大学 | Auxiliary device suitable for teaching of Chinese language and literature specialty |
| CN112951111A (en) * | 2021-01-29 | 2021-06-11 | 陕西中医药大学 | Culture media advertisement device based on internet |
| CN112951111B (en) * | 2021-01-29 | 2021-09-14 | 陕西中医药大学 | Culture media advertisement device based on internet |
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Application publication date: 20180731 |