CN113294662A - Advertisement playing equipment based on big data - Google Patents
Advertisement playing equipment based on big data Download PDFInfo
- Publication number
- CN113294662A CN113294662A CN202110591086.XA CN202110591086A CN113294662A CN 113294662 A CN113294662 A CN 113294662A CN 202110591086 A CN202110591086 A CN 202110591086A CN 113294662 A CN113294662 A CN 113294662A
- Authority
- CN
- China
- Prior art keywords
- fixed
- shaped support
- disc
- top end
- big data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
- F16M11/2014—Undercarriages with or without wheels comprising means allowing pivoting adjustment around a vertical axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/28—Undercarriages for supports with one single telescoping pillar
Abstract
The invention discloses big data-based advertisement playing equipment, which belongs to the technical field of advertisement playing equipment and comprises a movable plate, wherein four corners of the bottom end of the movable plate are respectively fixedly provided with a movable wheel, the top end of the movable plate is rotatably connected with a disc, the middle part of the top end of the disc is fixedly provided with a fixed outer rod, a U-shaped support is arranged above the fixed outer rod, the inner walls of two sides of the U-shaped support are respectively rotatably connected with a rotating shaft, the same electronic display screen is fixed between the two rotating shafts, an angle adjusting mechanism is connected between the two rotating shafts and the U-shaped support, a rotary display mechanism is connected between the disc and the movable plate, a height adjusting mechanism is connected between the fixed outer rod and the U-shaped support, and the angle adjusting mechanism comprises two chain wheels I; through angle adjustment mechanism's setting, can conveniently adjust the show angle of electronic display screen, satisfy the user demand of different angle shows, application range is wide.
Description
Technical Field
The invention belongs to the technical field of advertisement playing equipment, and particularly relates to advertisement playing equipment based on big data.
Background
The advertisement is an ancient social phenomenon from the perspective of information transmission, and from the development history of human beings, the advertisement is an ubiquitous, untimely and unprecedented activity in the human society, and the human ancestors begin to use postures, sounds and lights to carry out advertisement propagation, later invent and use languages and characters to expand the depth and the breadth of advertisement propagation, and currently adopted advertisement playing equipment is generally put on and displayed by an electronic display screen.
Present advertisement putting display screen generally is the snap-on the wall, and inconvenient shift position that carries on, and inconvenient highly adjusting the advertisement putting display screen simultaneously to and inconvenient regulation the show angle of advertisement putting display screen, application scope is little, and in addition, advertisement putting display screen only shows the advertisement to the single face, makes the scope of advertisement show little.
Disclosure of Invention
The present invention is directed to an advertisement playing device based on big data to solve the above problems in the related art.
In order to achieve the purpose, the invention provides the following technical scheme: an advertisement playing device based on big data comprises a movable plate, wherein movable wheels are fixed at four corners of the bottom end of the movable plate, a disc is rotatably connected at the top end of the movable plate, a fixed outer rod is fixed at the middle part of the top end of the disc, a U-shaped bracket is installed above the fixed outer rod, rotating shafts are rotatably connected on inner walls of two sides of the U-shaped bracket respectively, the same electronic display screen is fixed between the two rotating shafts, an angle adjusting mechanism is connected between the two rotating shafts and the U-shaped bracket, a rotary display mechanism is connected between the disc and the movable plate, a height adjusting mechanism is connected between the fixed outer rod and the U-shaped bracket, the angle adjusting mechanism comprises two chain wheels I, one end of each rotating shaft extends to the outer side of the U-shaped bracket and is connected with an installation shaft hole of the chain wheel I, a double-shaft motor is fixedly embedded on the U-shaped bracket, output shafts at two ends of the double-shaft motor extend to the outer side of the U-shaped bracket, and a second chain wheel is fixedly connected, and chains are connected between the second chain wheel and the first chain wheel on the same side in a transmission manner.
As a preferred embodiment, an annular slider with a circular cross section is fixed at the bottom end of the disc, and an annular sliding groove matched with the annular slider is formed at the top end of the moving plate.
In a preferred embodiment, supporting plates are fixed on two sides of the top end of the U-shaped support, and the same herringbone baffle plate is fixed on the top ends of the two supporting plates.
As a preferred embodiment, the rotary display mechanism includes a transmission inner gear ring fixed at the top end of the moving plate and having a circular cross section, a bearing plate is fixed at one side of the top end of the disc, a speed regulating motor is fixed at the top end of the bearing plate, an output shaft of the speed regulating motor penetrates through the bearing plate and is fixedly connected with a gear, and the gear is engaged with the transmission inner gear ring.
As a preferred embodiment, the height adjusting mechanism comprises a telescopic cavity formed in the fixed outer rod, a telescopic inner rod is connected in the telescopic cavity in a sliding manner, the top end of the telescopic inner rod is connected with the bottom end of the U-shaped support, and a screw rod is connected to the telescopic inner rod in a threaded manner.
As a preferred embodiment, an inner cavity formed in the fixed outer rod is further formed below the telescopic cavity, a positive and negative motor is fixed in the inner cavity, and the bottom end of the screw rod extends into the inner cavity and is connected with an output shaft of the positive and negative motor.
Compared with the prior art, the advertisement playing device based on the big data provided by the invention at least has the following beneficial effects:
(1) through the arrangement of the angle adjusting mechanism, the display angle of the electronic display screen can be conveniently adjusted, the use requirements of display at different angles are met, and the use range is wide;
(2) through the setting of rotatory show mechanism, can make electronic display screen rotate for the display range of electronic display screen advertisement broadcast.
(3) Through the setting of height adjusting mechanism, can adjust electronic display screen's height, satisfy the demand that the not co-altitude carries out the show, further enlarge its application range.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the structure of the present invention at A;
FIG. 3 is an enlarged schematic view of the present invention at B.
In the figure: 1. moving the plate; 2. a disc; 21. fixing the outer rod; 22. an annular slider; 3. a U-shaped bracket; 31. a rotating shaft; 32. an electronic display screen; 33. a support plate; 34. a herringbone guard plate; 4. an angle adjusting mechanism; 401. a chain wheel I; 402. a double-shaft motor; 403. a second chain wheel; 404. a chain; 5. a rotary display mechanism; 501. a transmission ring gear; 502. a speed-regulating motor; 503. a gear; 6. a height adjustment mechanism; 601. a screw; 602. a positive and negative motor; 603. a telescopic inner rod.
Detailed Description
The present invention will be further described with reference to the following examples.
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple modifications of the method of the present invention based on the concept of the present invention are within the scope of the claimed invention.
Referring to fig. 1-3, the present invention provides an advertisement playing device based on big data, which comprises a moving plate 1, a disc 2, a fixed outer rod 21, an annular slider 22, a U-shaped bracket 3, a rotating shaft 31, an electronic display screen 32, a supporting plate 33, a herringbone shielding plate 34, an angle adjusting mechanism 4, a chain wheel one 401, a double-shaft motor 402, a chain wheel two 403, a chain 404, a rotary display mechanism 5, a transmission inner gear ring 501, a speed regulating motor 502, a gear 503, a height adjusting mechanism 6, a screw 601, a positive and negative motor 602 and a telescopic inner rod 603, wherein four corners of the bottom end of the moving plate 1 are respectively fixed with a moving wheel, the top end of the moving plate 1 is rotatably connected with the disc 2, the fixed outer rod 21 is fixed in the middle of the top end of the disc 2, the U-shaped bracket 3 is installed above the fixed outer rod 21, the rotating shafts 31 are rotatably connected on inner walls on both sides of the U-shaped bracket 3, the same electronic display screen 32 is fixed between the two rotating shafts 31, be connected with angle adjustment mechanism 4 between two pivot 31 and the U type support 3, angle adjustment mechanism 4 includes two sprocket 401, the one end of pivot 31 all extends to the outside of U type support 3, and link to each other with the installation shaft hole of sprocket 401, it is equipped with double-shaft motor 402 to fix on the U type support 3 to inlay, double-shaft motor 402's both ends output shaft all extends to the outside of U type support 3, and the rigid coupling has sprocket two 403, equal transmission is connected with chain 404 between sprocket two 403 with one side and sprocket 401, it makes things convenient for the removal transportation of this device to remove setting up of wheel.
Further as shown in fig. 1, the bottom end of the disc 2 is fixed with an annular slider 22 with a circular cross section, the top end of the movable plate 1 is provided with an annular sliding groove matched with the annular slider 22, the two sides of the top end of the U-shaped support 3 are both fixed with supporting plates 33, the top ends of the two supporting plates 33 are fixed with a same herringbone blocking plate 34, and the herringbone blocking plate 34 can block rain or sun, and is suitable for outdoor use.
Further as shown in fig. 2, a rotary display mechanism 5 is connected between the disc 2 and the moving plate 1, the rotary display mechanism 5 includes a transmission inner gear ring 501 fixed at the top end of the moving plate 1 and having a circular cross section, a bearing plate is fixed at one side of the top end of the disc 2, an adjustable speed motor 502 is fixed at the top end of the bearing plate, an output shaft of the adjustable speed motor 502 penetrates through the bearing plate and is fixedly connected with a gear 503, the gear 503 is engaged with the transmission inner gear ring 501, and a transverse axis of the adjustable speed motor 502 coincides with a transverse axis of the disc 2.
Further as shown in fig. 3, be connected with height adjustment mechanism 6 between fixed outer pole 21 and the U type support 3, height adjustment mechanism 6 is including seting up the flexible chamber on fixed outer pole 21, flexible intracavity sliding connection has flexible interior pole 603, the top of flexible interior pole 603 links to each other with the bottom of U type support 3, threaded connection has screw rod 601 on the flexible interior pole 603, the below in flexible chamber still is equipped with the inner chamber of seting up on fixed outer pole 21, the intracavity is fixed with positive and negative motor 602, the bottom of screw rod 601 extends to the inner chamber, and link to each other with positive and negative motor 602 output shaft, screw rod 601 starts through positive and negative motor 602, and screw rod 601 makes flexible interior pole 603 can remove in the flexible intracavity of fixed outer pole 21 then with flexible interior pole 603 threaded connection simultaneously.
When the device is used, the position needing advertisement display is pushed by the device, the screw 601 is rotated by starting the positive and negative motors 602, the screw 601 is in threaded connection with the telescopic inner rod 603, the telescopic inner rod 603 can be lifted in the fixed outer rod 21, the electronic display screen 32 can be conveniently adjusted, then the two chain wheels 403 are rotated by starting the double-shaft motor 402, the angle of the electronic display screen 32 connected with the two rotating shafts 31 can be adjusted by matching the arrangement of the chain 404 and the two chain wheels 401, different display conditions are met, the application range is wide, finally, the gear 503 is rotated by starting the speed adjusting motor 502, the gear 503 is meshed with the transmission inner gear ring 501, in addition, the disc 2 is in sliding connection with the top end of the moving plate 1 through the annular slide block 22, and then the disc 2 can rotate at the top end of the moving plate 1, the display range of the advertisement played by the electronic display screen 32 can be conveniently expanded.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The advertisement playing device based on the big data comprises a movable plate (1) and is characterized in that moving wheels are fixed at four corners of the bottom end of the movable plate (1), a disc (2) is rotatably connected to the top end of the movable plate (1), a fixed outer rod (21) is fixed in the middle of the top end of the disc (2), a U-shaped support (3) is installed above the fixed outer rod (21), rotating shafts (31) are rotatably connected to inner walls of two sides of the U-shaped support (3), a same electronic display screen (32) is fixed between the two rotating shafts (31), an angle adjusting mechanism (4) is connected between the two rotating shafts (31) and the U-shaped support (3), a rotary display mechanism (5) is connected between the disc (2) and the movable plate (1), a height adjusting mechanism (6) is connected between the fixed outer rod (21) and the U-shaped support (3), and the angle adjusting mechanism (4) comprises two chain wheels I (401), one end of the rotating shaft (31) extends to the outer side of the U-shaped support (3) and is connected with an installation shaft hole of the first chain wheel (401), a double-shaft motor (402) is fixedly embedded on the U-shaped support (3), output shafts at two ends of the double-shaft motor (402) extend to the outer side of the U-shaped support (3) and are fixedly connected with a second chain wheel (403), and a chain (404) is in transmission connection with the second chain wheel (403) and the first chain wheel (401) on the same side.
2. The big data based advertisement broadcasting device according to claim 1, wherein: the bottom of disc (2) is fixed with annular slider (22) that the cross section is the ring type, and the top of movable plate (1) is seted up the annular spout with annular slider (22) matched with.
3. The big data based advertisement broadcasting device according to claim 1, wherein: supporting plates (33) are fixed on two sides of the top end of the U-shaped support (3), and the same herringbone blocking plate (34) is fixed on the top ends of the two supporting plates (33).
4. The big data based advertisement broadcasting device according to claim 1, wherein: the rotary display mechanism (5) comprises a transmission inner gear ring (501) which is fixed at the top end of the moving plate (1) and has a circular section, a bearing plate is fixed at one side of the top end of the disc (2), a speed regulating motor (502) is fixed at the top end of the bearing plate, an output shaft of the speed regulating motor (502) penetrates through the bearing plate and is fixedly connected with a gear (503), and the gear (503) is meshed with the transmission inner gear ring (501).
5. The big data based advertisement broadcasting device according to claim 1, wherein: height adjusting mechanism (6) are including seting up the flexible chamber on fixed outer pole (21), and flexible intracavity sliding connection has flexible interior pole (603), and the top of flexible interior pole (603) links to each other with the bottom of U type support (3), and threaded connection has screw rod (601) on flexible interior pole (603).
6. The big data based advertisement broadcasting device according to claim 5, wherein: the lower part of the telescopic cavity is also provided with an inner cavity arranged on the fixed outer rod (21), a positive and negative motor (602) is fixed in the inner cavity, and the bottom end of the screw rod (601) extends into the inner cavity and is connected with an output shaft of the positive and negative motor (602).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110591086.XA CN113294662A (en) | 2021-05-28 | 2021-05-28 | Advertisement playing equipment based on big data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110591086.XA CN113294662A (en) | 2021-05-28 | 2021-05-28 | Advertisement playing equipment based on big data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113294662A true CN113294662A (en) | 2021-08-24 |
Family
ID=77326081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110591086.XA Withdrawn CN113294662A (en) | 2021-05-28 | 2021-05-28 | Advertisement playing equipment based on big data |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113294662A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023108355A1 (en) * | 2021-12-13 | 2023-06-22 | 袁建民 | Position adjustment apparatus for console of laminating machine |
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| CN104879625A (en) * | 2015-06-18 | 2015-09-02 | 江苏金铁人自动化科技有限公司 | Screen lifting and rotating holder |
| WO2016058198A1 (en) * | 2014-10-13 | 2016-04-21 | 徐新华 | Lifting/lowering rotatable support frame for display device |
| CN207500742U (en) * | 2017-11-03 | 2018-06-15 | 兰州骄阳文化传播有限公司 | A kind of adjustable outdoor network advertisement plays multimedium showing device |
| CN208106014U (en) * | 2018-04-13 | 2018-11-16 | 陈玉国 | Sky parking |
| CN208566080U (en) * | 2018-06-08 | 2019-03-01 | 泰弗思科技(安徽)有限公司 | A kind of adjustable electronic information board easy to remove |
| CN111237597A (en) * | 2020-01-19 | 2020-06-05 | 重庆同纳科技发展有限责任公司 | Monitoring equipment with adjustable transmission device |
| CN210870773U (en) * | 2019-08-28 | 2020-06-30 | 倪建芳 | Network design board capable of laterally overturning |
| CN211375822U (en) * | 2020-03-31 | 2020-08-28 | 盐城工业职业技术学院 | English teaching display device |
| CN112483815A (en) * | 2020-12-21 | 2021-03-12 | 郑州市金雀电子技术有限公司 | Vertical rotary advertisement machine |
| CN112648512A (en) * | 2020-12-22 | 2021-04-13 | 邢台职业技术学院 | Intelligent computer teaching equipment based on mobile internet |
-
2021
- 2021-05-28 CN CN202110591086.XA patent/CN113294662A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058198A1 (en) * | 2014-10-13 | 2016-04-21 | 徐新华 | Lifting/lowering rotatable support frame for display device |
| CN104879625A (en) * | 2015-06-18 | 2015-09-02 | 江苏金铁人自动化科技有限公司 | Screen lifting and rotating holder |
| CN207500742U (en) * | 2017-11-03 | 2018-06-15 | 兰州骄阳文化传播有限公司 | A kind of adjustable outdoor network advertisement plays multimedium showing device |
| CN208106014U (en) * | 2018-04-13 | 2018-11-16 | 陈玉国 | Sky parking |
| CN208566080U (en) * | 2018-06-08 | 2019-03-01 | 泰弗思科技(安徽)有限公司 | A kind of adjustable electronic information board easy to remove |
| CN210870773U (en) * | 2019-08-28 | 2020-06-30 | 倪建芳 | Network design board capable of laterally overturning |
| CN111237597A (en) * | 2020-01-19 | 2020-06-05 | 重庆同纳科技发展有限责任公司 | Monitoring equipment with adjustable transmission device |
| CN211375822U (en) * | 2020-03-31 | 2020-08-28 | 盐城工业职业技术学院 | English teaching display device |
| CN112483815A (en) * | 2020-12-21 | 2021-03-12 | 郑州市金雀电子技术有限公司 | Vertical rotary advertisement machine |
| CN112648512A (en) * | 2020-12-22 | 2021-04-13 | 邢台职业技术学院 | Intelligent computer teaching equipment based on mobile internet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023108355A1 (en) * | 2021-12-13 | 2023-06-22 | 袁建民 | Position adjustment apparatus for console of laminating machine |
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Application publication date: 20210824 |
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| WW01 | Invention patent application withdrawn after publication |