CN114017641B - A portable publicity column for teaching education - Google Patents
A portable publicity column for teaching education Download PDFInfo
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- CN114017641B CN114017641B CN202111292481.4A CN202111292481A CN114017641B CN 114017641 B CN114017641 B CN 114017641B CN 202111292481 A CN202111292481 A CN 202111292481A CN 114017641 B CN114017641 B CN 114017641B
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- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000003028 elevating effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/04—Easels or stands for blackboards or the like
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention provides a mobile publicity column for teaching education, which is characterized in that: including left socle, right branch frame, L type fixed plate, backup pad, first anchor clamps, propaganda blackboard, L type mounting panel, second anchor clamps and display screen, the left socle with right branch frame is placed relatively, the left socle with the lower extreme of right branch frame respectively is fixed with a heel brace 1, the left socle with the top of right branch frame respectively is connected with an L type fixed plate through elevating system, the backup pad sets up between the L type fixed plate of L type fixed plate on the left socle and right branch frame top, still be provided with position adjustment mechanism between backup pad and the L type fixed plate of both sides, propaganda blackboard is installed in the below of backup pad through first anchor clamps. The design has the advantages of simple structure, easy manufacture, practicality and high efficiency.
Description
Technical Field
The invention relates to the technical field of education propaganda, in particular to a movable propaganda column for teaching education.
Background
The education publicity column is used as an effective means of education publicity, needs to be deployed in streets, parks, malls, crowded areas such as campus and the like, traditional publicity columns are installed in a fixed mode, supports and glass windows need to be installed in batches, the structural weight of the supports and the glass windows is large, a large number of workers are required to be matched to complete installation during installation, the installation process is complicated, the use cost is high after deployment, the information is displayed in the campus in view of the fact that the deployment of the traditional education publicity column is used for reasonably utilizing the display resources of the education publicity column, and the education publicity column adopting the movable design is more suitable for campus education publicity.
Disclosure of Invention
The invention provides a movable publicity column for teaching and education, which is characterized in that roller assemblies are arranged on the front side and the rear side of a foot support, and the roller assemblies are used as supports to facilitate carrying by enabling the publicity column to fall down integrally.
In order to solve the technical problems, the invention provides a mobile publicity column for teaching education, which is characterized in that: including left socle, right branch frame, L type fixed plate, backup pad, first anchor clamps, propaganda blackboard, L type mounting panel, second anchor clamps and display screen, the left socle with right branch frame is placed relatively, the left socle with the lower extreme of right branch frame respectively is fixed with a heel brace 1, the left socle with the top of right branch frame respectively is connected with an L type fixed plate through elevating system, the backup pad sets up between the L type fixed plate of L type fixed plate on the left socle and right branch frame top, still be provided with position adjustment mechanism between backup pad and the L type fixed plate of both sides, propaganda blackboard is installed in the below of backup pad through first anchor clamps, the left socle with the inboard of two L type fixed plates of right branch frame top respectively is fixed with an L type mounting panel, respectively is connected with a second anchor clamps through upper and lower slide mechanism on two L type mounting panels, the display screen fix between two second anchor clamps.
Further: the lifting mechanism comprises an electric telescopic rod, a transmission rod and a lifting rod, wherein the electric telescopic rod, the transmission rod and the lifting rod are fixed on the outer sides of a left support and a right support, the lifting rod is formed by connecting a threaded rod and a guide rod into a whole, guide holes matched with the guide rod are formed in the tops of the left support and the right support, the lower ends of the guide rods are movably connected in the guide holes, the threaded rod penetrates through an L-shaped fixing plate, locking nuts are respectively connected to the threaded rods on the upper side and the lower side of the L-shaped fixing plate, the L-shaped fixing plate is fixedly clamped on the threaded rod through the locking nuts on the upper side and the lower side of the L-shaped fixing plate, and the electric telescopic rod is connected to the bottom of the L-shaped fixing plate through the transmission rod.
Still further: the position adjusting mechanism comprises a first side plate vertically fixed at the top of the L-shaped fixing plate, a guide cylinder, a second guide rod and a jacking bolt, wherein the guide cylinder, the second guide rod and the jacking bolt are arranged at the tops of two ends of the support plate, one end of the second guide rod is horizontally fixed at one side of the first side plate, the other end of the second guide rod penetrates through the guide cylinder, a threaded hole communicated with the inner space of the guide cylinder is formed in the top of the guide cylinder, the jacking bolt is connected in the threaded hole and penetrates through the threaded hole to be in contact with the second guide rod in the guide cylinder, and the second guide rod is jacked and fixed in the guide cylinder through friction between the jacking bolt and the second guide rod.
Still further: the anti-falling mechanism comprises a rope and a first spring, the tops of two ends of the supporting plate are respectively and vertically fixed with a second side plate, one end of the second guide rod, which is far away from the first side plate, is connected with the second side plate through the first spring, and two ends of the rope are respectively connected to the first side plate and the second side plate.
Still further: the center department of backup pad still is connected with the pivot, the knob is installed to the upper end of pivot, the lower extreme of pivot passes the backup pad and connects at the top of first anchor clamps, propaganda blackboard is rotatory along with the pivot together under the drive of first anchor clamps.
Still further: still be provided with positioning mechanism between first anchor clamps and the backup pad, positioning mechanism includes the locating lever, offered in the backup pad with locating lever assorted through-hole, first anchor clamps's top has been offered with locating lever assorted locating hole, the locating lever passes the backup pad along the through-hole and connects in the locating hole at first anchor clamps top.
Still further: the left end and the right end of the first clamp are respectively fixed with a left mounting plate and a right mounting plate, a first pushing electric cylinder is mounted on the left mounting plate, the first pushing electric cylinder penetrates through the left mounting plate to be connected with a first brush for wiping the front surface of the propaganda blackboard, a second pushing electric cylinder is mounted on the right mounting plate, and the second pushing electric cylinder penetrates through the right mounting plate to be connected with a second brush for wiping the rear surface of the propaganda blackboard.
Still further: the upper and lower sliding mechanism comprises a sliding rail vertically fixed on the inner side of the L-shaped mounting plate, and a sliding block vertically connected to the sliding rail in a sliding way, a second threaded hole is formed in the side wall of the sliding block, which is opposite to the outer wall of the sliding rail, a second tightening bolt is connected in the second threaded hole, the second tightening bolt passes through the second threaded hole to be in contact with the sliding rail in the sliding block, the sliding block is fixedly connected with the sliding rail through friction between the second tightening bolt and the sliding rail, and the second clamp is fixed on the sliding block.
Still further: the lower extreme of L type mounting panel still horizontally fixed has the lower bolster, be connected with the buffer board through the second spring in the lower bolster.
Still further: the chalk box is characterized in that an chalk box for placing chalk is arranged on the outer side of the left support, a chalk box for placing chalk is arranged on the outer side of the right support, and roller assemblies are arranged on the front side, the rear side and the rear side of the foot support.
By adopting the structure, the roller assemblies are arranged on the front side and the rear side of the foot support, and the propaganda column is integrally dumped, and the roller assemblies are used as supports, so that the roller assembly has the effect of being convenient to carry; the position of the propaganda blackboard and the position of the display screen can be adjusted through the lifting mechanism and the position adjusting mechanism, so that the function of increasing the practical performance is achieved; the invention also provides the anti-falling mechanism and the buffer plate, so that unnecessary loss caused by falling of the propaganda blackboard and the display screen is prevented, and the safety performance is improved.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a structural view of the position adjusting mechanism.
Fig. 3 is a partial structural view of the present invention.
Detailed Description
The utility model provides a portable publicity column for teaching education shown in figure 1, includes left socle 2, right branch frame 3, L type fixed plate 5, backup pad 8, first anchor clamps 10, propaganda blackboard 11, L type mounting panel 7, second anchor clamps 14 and display screen 15, the left socle with right branch frame is placed relatively, the left socle with the lower extreme of right branch frame respectively is fixed with a heel brace 1, the left socle with the top of right branch frame respectively is connected with an L type fixed plate through elevating system, backup pad 8 sets up between the L type fixed plate on the left socle and the L type fixed plate of right branch frame top, still be provided with position control mechanism between backup pad and the L type fixed plate of both sides, the propaganda blackboard is installed in the below of backup pad through first anchor clamps, the left socle with the inboard of two L type fixed plates of right branch frame top respectively is fixed with an L type mounting panel, respectively is connected with a second anchor clamps through upper and lower sliding mechanism on two L type mounting panels, the display screen fix between two second anchor clamps. The position of the propaganda blackboard and the position of the display screen can be adjusted through the lifting mechanism and the position adjusting mechanism, so that the function of increasing the practical performance is achieved.
The lifting mechanism shown in fig. 1 comprises an electric telescopic rod 6, a transmission rod and a lifting rod 4 which are fixed on the outer sides of a left support and a right support, wherein the lifting rod is formed by connecting a threaded rod and a guide rod into a whole up and down, guide holes matched with the guide rod are formed in the tops of the left support and the right support, the lower ends of the guide rods are movably connected in the guide holes, the threaded rod penetrates through an L-shaped fixing plate, locking nuts are respectively connected to the threaded rods on the upper side and the lower side of the L-shaped fixing plate, the L-shaped fixing plate is fixedly clamped on the threaded rods through the locking nuts on the upper side and the lower side of the L-shaped fixing plate, and the electric telescopic rod is connected to the bottom of the L-shaped fixing plate through the transmission rod.
The position adjusting mechanism shown in fig. 2 comprises a first side plate 21 vertically fixed at the top of an L-shaped fixing plate, a guide cylinder 23 arranged at the top of two ends of a supporting plate, a second guide rod 24 and a jacking bolt 26, wherein one end of the second guide rod is horizontally fixed at one side of the first side plate, the other end of the second guide rod penetrates through the guide cylinder, a threaded hole communicated with the inner space of the guide cylinder is formed in the top of the guide cylinder, the jacking bolt is connected in the threaded hole and penetrates through the threaded hole to be in contact with the second guide rod in the guide cylinder, and the second guide rod is jacked and fixed in the guide cylinder through friction between the jacking bolt and the second guide rod.
An anti-falling mechanism is further arranged between the L-shaped fixing plate and the supporting plate as shown in fig. 2, the anti-falling mechanism comprises ropes 27 and first springs 25, the tops of two ends of the supporting plate are further vertically fixed with second side plates 22 respectively, one end, far away from the first side plates, of the second guide rod is connected with the second side plates through the first springs, and two ends of each rope are connected to the first side plates and the second side plates respectively.
The center of the supporting plate shown in fig. 1 is also connected with a rotating shaft, the upper end of the rotating shaft is provided with a knob 9, the lower end of the rotating shaft penetrates through the supporting plate to be connected to the top of the first clamp, and the propaganda blackboard is driven by the first clamp to rotate along with the rotating shaft.
Still be provided with positioning mechanism between first anchor clamps and the backup pad as shown in fig. 1, positioning mechanism includes locating lever 35, offered in the backup pad with locating lever assorted through-hole, first anchor clamps's top has offered the locating hole with locating lever assorted, the locating lever passes the backup pad along the through-hole and connects in the locating hole at first anchor clamps top.
The left and right ends of the first clamp as shown in fig. 3 are respectively fixed with a left mounting plate 28 and a right mounting plate 29, a first pushing electric cylinder 32 is mounted on the left mounting plate, the first pushing electric cylinder penetrates through the left mounting plate to be connected with a first brush 30 for wiping the front surface of the propaganda blackboard, a second pushing electric cylinder 33 is mounted on the right mounting plate, and the second pushing electric cylinder penetrates through the right mounting plate to be connected with a second brush 31 for wiping the rear surface of the propaganda blackboard.
The up-down sliding mechanism shown in fig. 1 comprises a sliding rail 12 vertically fixed on the inner side of the L-shaped mounting plate, and a sliding block 13 vertically connected to the sliding rail in a sliding manner, wherein a second threaded hole is formed in the side wall of the sliding block, which is opposite to the outer wall of the sliding rail, a second tightening bolt is connected in the second threaded hole, the second tightening bolt passes through the second threaded hole to be in contact with the sliding rail in the sliding block, the sliding block is fixedly connected with the sliding rail through friction between the second tightening bolt and the sliding rail, and the second clamp is fixed on the sliding block.
The lower end of the L-shaped mounting plate as shown in FIG. 1 is also horizontally fixed with a lower support plate 16, on which a buffer plate 18 is connected through a second spring 17.
An chalk box 19 for placing chalk is arranged on the outer side of the left bracket as shown in fig. 1, a chalk box 20 for placing chalk is arranged on the outer side of the right bracket, and roller assemblies 34 are arranged on the front side, the rear side and the rear side of the heel brace. According to the invention, the roller assemblies are arranged on the front side and the rear side of the foot support, and the roller assemblies are used as supports to facilitate carrying by enabling the propaganda column to be wholly dumped.
The invention also provides the anti-falling mechanism and the buffer plate, so that unnecessary loss caused by falling of the propaganda blackboard and the display screen is prevented, and the safety performance is improved.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (1)
1. A portable publicity column for teaching education, its characterized in that: the intelligent advertising blackboard comprises a left bracket (2), a right bracket (3), L-shaped fixing plates (5), a supporting plate (8), first clamps (10), advertising blackboards (11), L-shaped mounting plates (7), second clamps (14) and a display screen (15), wherein the left bracket and the right bracket are oppositely arranged, the lower ends of the left bracket and the right bracket are respectively fixed with a foot support (1), the upper parts of the left bracket and the right bracket are respectively connected with an L-shaped fixing plate through a lifting mechanism, the supporting plate (8) is arranged between the L-shaped fixing plates above the left bracket and the L-shaped fixing plates above the right bracket, a position adjusting mechanism is further arranged between the supporting plate and the L-shaped fixing plates on two sides, the advertising blackboards are arranged below the supporting plate through the first clamps, the L-shaped mounting plates are respectively fixed on the inner sides of the two L-shaped fixing plates above the left bracket and the two L-shaped fixing plates, the two L-shaped mounting plates are respectively connected with a second clamp through an up-down sliding mechanism, and the display screen is fixed between the two second clamps;
the lifting mechanism comprises an electric telescopic rod (6), a transmission rod and a lifting rod (4) which are fixed on the outer sides of a left bracket and a right bracket, wherein the lifting rod is formed by connecting a threaded rod and a guide rod into a whole up and down, guide holes matched with the guide rod are formed in the tops of the left bracket and the right bracket, the lower end of the guide rod is movably connected in the guide holes, the threaded rod penetrates through an L-shaped fixing plate, locking nuts are respectively connected to the threaded rods on the upper side and the lower side of the L-shaped fixing plate, the L-shaped fixing plate is fixedly clamped on the threaded rod through the locking nuts on the upper side and the lower side of the L-shaped fixing plate, and the electric telescopic rod is connected to the bottom of the L-shaped fixing plate through the transmission rod;
the position adjusting mechanism comprises a first side plate (21) vertically fixed at the top of the L-shaped fixing plate, a guide cylinder (23) arranged at the top of two ends of the supporting plate, a second guide rod (24) and a jacking bolt (26), one end of the second guide rod is horizontally fixed at one side of the first side plate, the other end of the second guide rod penetrates through the guide cylinder, a threaded hole communicated with the inner space of the guide cylinder is formed in the top of the guide cylinder, the jacking bolt is connected in the threaded hole and penetrates through the threaded hole to be in contact with the second guide rod in the guide cylinder, and the second guide rod is jacked and fixed in the guide cylinder through friction force between the jacking bolt and the second guide rod;
an anti-falling mechanism is further arranged between the L-shaped fixing plate and the supporting plate, the anti-falling mechanism comprises a rope (27) and a first spring (25), a second side plate (22) is vertically fixed at the top of each of the two ends of the supporting plate, one end, far away from the first side plate, of the second guide rod is connected with the second side plate through the first spring, and the two ends of the rope are respectively connected with the first side plate and the second side plate;
the center of the supporting plate is also connected with a rotating shaft, the upper end of the rotating shaft is provided with a knob (9), the lower end of the rotating shaft penetrates through the supporting plate to be connected to the top of the first clamp, and the propaganda blackboard rotates together with the rotating shaft under the drive of the first clamp;
a positioning mechanism is further arranged between the first clamp and the supporting plate, the positioning mechanism comprises a positioning rod (35), a through hole matched with the positioning rod is formed in the supporting plate, a positioning hole matched with the positioning rod is formed in the top of the first clamp, and the positioning rod penetrates through the supporting plate along the through hole and is connected in the positioning hole in the top of the first clamp;
the left end and the right end of the first clamp are respectively fixed with a left mounting plate (28) and a right mounting plate (29), a first pushing electric cylinder (32) is mounted on the left mounting plate, the first pushing electric cylinder penetrates through the left mounting plate to be connected with a first brush (30) for wiping the front surface of the propaganda blackboard, a second pushing electric cylinder (33) is mounted on the right mounting plate, and the second pushing electric cylinder penetrates through the right mounting plate to be connected with a second brush (31) for wiping the rear surface of the propaganda blackboard;
the up-down sliding mechanism comprises a sliding rail (12) vertically fixed on the inner side of the L-shaped mounting plate and a sliding block (13) connected to the sliding rail in an up-down sliding manner, a second threaded hole is formed in the side wall of the sliding block, which is opposite to the outer wall of the sliding rail, a second jacking bolt is connected in the second threaded hole, the second jacking bolt passes through the second threaded hole to be in contact with the sliding rail in the sliding block, the sliding block is fixedly connected with the sliding rail through friction between the second jacking bolt and the sliding rail, and the second clamp is fixed on the sliding block;
the lower end of the L-shaped mounting plate is also horizontally fixed with a lower support plate (16), and the lower support plate is connected with a buffer plate (18) through a second spring (17);
the chalk box is characterized in that an chalk box (19) for placing chalk is arranged on the outer side of the left support, a chalk box (20) for placing chalk is arranged on the outer side of the right support, and roller assemblies (34) are arranged on the front side, the rear side and the rear side of the foot support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292481.4A CN114017641B (en) | 2021-11-03 | 2021-11-03 | A portable publicity column for teaching education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292481.4A CN114017641B (en) | 2021-11-03 | 2021-11-03 | A portable publicity column for teaching education |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114017641A CN114017641A (en) | 2022-02-08 |
| CN114017641B true CN114017641B (en) | 2023-06-09 |
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ID=80060209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111292481.4A Active CN114017641B (en) | 2021-11-03 | 2021-11-03 | A portable publicity column for teaching education |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114017641B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3862612B2 (en) * | 2002-06-03 | 2006-12-27 | 株式会社ファースト | Inclined road marking device |
| CN107355657A (en) * | 2017-07-14 | 2017-11-17 | 滁州市状元郎电子科技有限公司 | A kind of moveable adjustable type electronic whiteboard bracket |
| CN108453646B (en) * | 2018-04-20 | 2024-06-04 | 深圳市道通科技股份有限公司 | Clamping device and automobile calibration equipment |
| CN109019419A (en) * | 2018-09-11 | 2018-12-18 | 王成 | A kind of auto repair hanger |
| CN209721506U (en) * | 2019-02-21 | 2019-12-03 | 嘉兴同嘉智能技术有限公司 | Lifting device is used in a kind of installation of intelligent building glass |
| CN110173610B (en) * | 2019-05-05 | 2022-05-24 | 美国乐歌有限公司 | Electric lifting media wall |
| CN210052310U (en) * | 2019-05-08 | 2020-02-11 | 王玲 | Teaching aid for mathematical education |
| CN212322441U (en) * | 2020-02-15 | 2021-01-08 | 秦慧媛 | Book editing teaching aid |
| CN111503486A (en) * | 2020-04-23 | 2020-08-07 | 淄博职业学院 | Tutor is with think political affairs education device based on big data |
| CN212873897U (en) * | 2020-09-29 | 2021-04-02 | 清远网软网络科技有限公司 | Tourism publicity column based on three-dimensional data acquisition |
| CN214164578U (en) * | 2020-12-09 | 2021-09-10 | 秦皇岛职业技术学院 | Expandable blackboard for teaching |
| CN214042481U (en) * | 2020-12-31 | 2021-08-24 | 东莞市美鼎实业有限公司 | Perpendicular compression fittings of self-service terminal |
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2021
- 2021-11-03 CN CN202111292481.4A patent/CN114017641B/en active Active
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| CN114017641A (en) | 2022-02-08 |
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