CN113598565A - Wisdom garden management is with propaganda display device - Google Patents
Wisdom garden management is with propaganda display device Download PDFInfo
- Publication number
- CN113598565A CN113598565A CN202110786437.2A CN202110786437A CN113598565A CN 113598565 A CN113598565 A CN 113598565A CN 202110786437 A CN202110786437 A CN 202110786437A CN 113598565 A CN113598565 A CN 113598565A
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- box body
- display device
- gear
- box
- rod
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/001—Devices for lighting, humidifying, heating, ventilation
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B11/00—Umbrellas characterised by their shape or attachment
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B25/00—Details of umbrellas
- A45B25/14—Devices for opening and for closing umbrellas
- A45B25/143—Devices for opening and for closing umbrellas automatic
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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
- A47B91/00—Feet for furniture in general
- A47B91/02—Adjustable feet
- A47B91/022—Adjustable feet using screw means
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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
- A47B91/00—Feet for furniture in general
- A47B91/06—Gliders or the like
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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
- G09F15/0006—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels
- G09F15/0012—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels frames therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a propaganda and display device for managing an intelligent park, which belongs to the technical field of propaganda and display devices and comprises a box body, wherein the upper end of the box body is provided with a rainproof mechanism, the rainproof mechanism comprises a motor fixed at the bottom of the box body, the output end of the motor is provided with a first gear, and one side of the first gear is in meshing connection with a second gear. The waterproof cloth is prevented from being exposed outside and exposed to sunlight for a long time, so that the service life of the waterproof cloth can be prolonged.
Description
Technical Field
The invention belongs to the technical field of propaganda and display devices, and particularly relates to a propaganda and display device for intelligent park management.
Background
The propaganda devices are mostly arranged at the entrance and exit of a community or at cultural squares, activity centers, roads along streets or near convention places and the like, so that residents in the community cannot avoid the propaganda devices to passively read; the current society is an information age, the channel of information learning by the public can be a five-flower eight-door, and the function of the propaganda device cannot be ignored. The propaganda device can be used for propagandizing knowledge windows in all aspects of science, technology, culture, sanitation and the like, and is an important channel for residents to master popular science knowledge. The current propaganda device is corroded by the rainwater easily in the use, and rain-proof effect is relatively poor for publicity cloth paper is difficult to preserve for a long time.
Disclosure of Invention
The invention provides a propaganda and display device for intelligent park management, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a propaganda and display device for intelligent park management comprises a box body, wherein a rainproof mechanism is arranged at the upper end of the box body;
the rainproof mechanism comprises an electric motor fixed at the bottom of a box body, a first gear is arranged at the output end of the electric motor, a second gear is meshed and connected with one side of the first gear, a first threaded rod is arranged inside the second gear, two ends of the first threaded rod are rotatably connected inside the box body, a moving block is in threaded connection with the outer part of the first threaded rod, a penetrating limiting rod is arranged inside the moving block and fixed at the bottom end inside the box body, a slotted hole is formed above the moving block, a support frame is arranged at the upper end of the moving block, an electric push rod is arranged in the middle of the support frame, a moving seat is arranged at the upper end of the electric push rod, a moving cover is arranged above the moving seat, one ends of the rotating rods which are hinged are arranged on four sides of the moving seat, a support rod is hinged to the other end of the rotating rod, and the upper end of the support rod is hinged to the side surface of the moving cover, all be provided with the tarpaulin between the bracing piece, the upper end avris of box is provided with rain sensor.
Preferably, a controller is arranged in the box body, the input end of the controller is connected with the rainwater sensor, and the output end of the controller is respectively connected with the motor and the electric push rod.
Preferably, the surface of box is provided with the recess, the embedding has the show cupboard in the recess, four sides in the inside of show cupboard are provided with the fixed block, fixed block surface connection has the dwang, the outer end of dwang is provided with the briquetting, surface one side of show cupboard articulates there is the transparent plastic door.
Preferably, the inside of show cupboard is provided with the LED lamp.
Preferably, the upper end of the box body is provided with a photovoltaic power generation mechanism;
the photovoltaic power generation mechanism comprises a solar photovoltaic array, a DC/AC converter, a storage battery pack and a charge and discharge controller, wherein the solar photovoltaic array is connected with the DC/AC converter, the storage battery pack and the charge and discharge controller are connected between the solar photovoltaic array and the DC/AC converter, the solar photovoltaic array is arranged at the upper end of the box body, the DC/AC converter, the storage battery pack and the charge and discharge controller are all arranged inside the box body, and the DC/AC converter is respectively connected with a motor, an electric push rod and an LED lamp.
Preferably, the side edge of the box body is provided with a hinged box door.
Preferably, the two sides of the box body are provided with fixing frames, the fixing frames are provided with second threaded rods in threaded connection, the upper ends of the second threaded rods are provided with rotating discs, and the lower ends of the second threaded rods are provided with idler wheels.
Compared with the prior art, the invention has the beneficial effects that:
1. the waterproof cloth box has the advantages that the rainwater sensor transmits signals to the controller, the controller controls the motor to rotate, so that when the supporting rod is completely exposed outside the box body, the electric push rod drives the movable seat to ascend, the rotating rod opens the supporting rod to start the rotating rod, the waterproof cloth is opened, the waterproof cloth completely shields the box body, rainwater is prevented, the effect is good, automatic operation is achieved, manual operation is not needed, time and labor are saved, the waterproof cloth box is convenient to use, when the waterproof cloth box is not used, the waterproof cloth can be retracted into the box body, the waterproof cloth is prevented from being exposed outside, sunlight exposure is avoided, and the service life of the waterproof cloth can be prolonged.
2. According to the invention, by rotating the rotating rod, the propaganda and display cloth paper is fixed by the pressing block, so that the fixing is simple and firm, the time is saved, and the efficiency is improved; and the photovoltaic power generation mechanism converts the solar energy into electric energy and stores the electric energy in the storage battery pack, so that the electric energy is provided for corresponding power equipment, the resources are reasonably utilized, and the solar photovoltaic power generation system is self-sufficient, energy-saving and environment-friendly.
3. The device is moved to the corresponding position through the roller, the movement and the transportation are convenient, after the device arrives at the destination, the rotating disc is rotated to enable the second threaded rod to rotate and ascend, the roller ascends to enable the box body to be in contact with the ground, the contact area is increased, the supporting stability is improved, the convenience in movement and the transportation is guaranteed on one hand, and the stability in placement is guaranteed on the other hand.
Drawings
FIG. 1 is a schematic structural view of a propaganda and display device for intelligent park management according to the present invention.
Fig. 2 is a schematic structural view of the rain-proof mechanism of the present invention.
In the figure: 1. a box body; 2. a display cabinet; 21. an LED lamp; 22. rotating the rod; 23. a fixed block; 24. briquetting; 3. a photovoltaic power generation mechanism; 4. a rain-proof mechanism; 401. a rotating rod; 402. moving the cover; 403. a movable seat; 404. a support frame; 405. a support bar; 406. an electric push rod; 407. a moving block; 408. a limiting rod; 409. A first gear; 410. an electric motor; 411. a second gear; 412. a first threaded rod; 413. a slot; 414. A rain sensor; 415. a controller; 5. rotating the disc; 6. a second threaded rod; 7. a fixed mount; 8. and a roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides the following technical solutions:
example 1
A propaganda and display device for intelligent park management comprises a box body 1, wherein a hinged box door is arranged on the side edge of the box body 1 for maintenance; the upper end of the box body 1 is provided with a rainproof mechanism 4;
the rainproof mechanism 4 comprises an electric motor 410 fixed at the bottom of the box body 1, the output end of the electric motor 410 is provided with a first gear 409, one side of the first gear 409 is engaged and connected with a second gear 411, a first threaded rod 412 is arranged inside the second gear 411, two ends of the first threaded rod 412 are rotatably connected inside the box body 1, a moving block 407 is connected outside the first threaded rod 412 in a threaded manner, a through limiting rod 408 is arranged inside the moving block 407, the limiting rod 408 is fixed at the bottom end inside the box body 1, a slotted hole 413 is arranged above the moving block 407, a supporting frame 404 is arranged at the upper end of the moving block 407, an electric push rod 406 is arranged in the middle of the supporting frame 404, a moving seat 403 is arranged at the upper end of the electric push rod 406, a moving cover 402 is arranged above the moving seat 403, one end of a rotating rod 401 is hinged to four sides of the moving seat, the other end of the rotating rod 401 is hinged to a supporting rod 405, and the upper end of the supporting rod 405 is hinged to the side of the moving cover 402, waterproof cloth is arranged between the support rods 405, and a rainwater sensor 414 is arranged on the side of the upper end of the box body 1.
In this embodiment, a controller 415 is disposed inside the box 1, an input end of the controller 415 is connected to the rain sensor 414, and an output end of the controller 415 is connected to the motor 410 and the electric push rod 406, respectively.
Specifically, when the rain sensor 414 senses rain, a signal is transmitted to the controller 415, the controller 415 controls the motor 410 to rotate, the first gear 409 is driven to rotate, the first gear 409 drives the second gear 411 to rotate, the first threaded rod 412 is driven to rotate, the moving block 407 is made to ascend, when the supporting rod 405 is completely exposed outside the box body 1, the motor 410 is turned off, the electric push rod 406 is made to drive the moving seat 403 to ascend, the rotating rod 401 is made to open the supporting rod to rotate the moving rod 405, the waterproof cloth is made to be opened, the box body 1 is completely shielded by the waterproof cloth, rain prevention is performed, the effect is good, automatic operation is achieved, manual operation is not needed, time and labor are saved, the use is convenient, when the waterproof cloth is not used, the waterproof cloth can be retracted into the box body 1, the waterproof cloth is prevented from being exposed outside, sunshine exposure is received for a long time, and the service life of the waterproof cloth can be prolonged.
Example 2
As an optional situation, please refer to fig. 1, a propaganda and display device for managing a smart park, a groove is formed on the surface of an installation box body 1, a display cabinet 2 is embedded in the groove, fixed blocks 23 are arranged on four sides inside the display cabinet 2, a rotating rod 22 is connected to the surface of each fixed block 23, a pressing block 24 is arranged at the outer end of each rotating rod 22, and a transparent plastic door is hinged to one side of the surface of the display cabinet 2, so that the display cabinet 2 can be opened or closed conveniently; to facilitate night viewing, the inside of the display case 2 is provided with LED lamps 21.
Specifically, open show cupboard 2, put into propaganda show tissue, through rotatory dwang 22, make 24 fixed propaganda show tissue of briquetting, fixed simple firm, save time raises the efficiency.
The scheme in this embodiment can be selectively combined with the scheme in other embodiments.
Example 3
As an optional situation, please refer to fig. 1-2, a propaganda and display device for managing a smart park, a photovoltaic power generation mechanism 3 is disposed at the upper end of a box body 1;
the photovoltaic power generation mechanism comprises a solar photovoltaic array, a DC/AC converter, a storage battery pack and a charge and discharge controller, wherein the solar photovoltaic array is connected with the DC/AC converter, the storage battery pack and the charge and discharge controller are connected between the solar photovoltaic array and the DC/AC converter, the solar photovoltaic array is arranged at the upper end of the box body 1, the storage battery pack is arranged in the box body 1, and the DC/AC converter is respectively connected with the motor 410, the electric push rod 406 and the LED lamp 21.
Specifically, solar energy is converted into electric energy through the photovoltaic power generation mechanism and stored in the storage battery pack, and then electric energy is provided for electric power equipment such as the motor 410, the electric push rod 406 and the LED lamp 21 in the propaganda and display device, so that resources are reasonably utilized, and the propaganda and display device is self-sufficient, energy-saving and environment-friendly.
The scheme in this embodiment can be selectively combined with the scheme in other embodiments.
Example 4
As an optional situation, please refer to fig. 1, a propaganda and display device for managing a smart park, wherein two sides of a box body 1 are provided with fixing frames 7, the fixing frames 7 are provided with second threaded rods 6 connected by threads, the upper ends of the second threaded rods 6 are provided with rotating discs 5, and the lower ends of the second threaded rods 6 are provided with rollers 8.
Specifically, move the device to relevant position through gyro wheel 8, remove the transportation convenient, after arriving the destination, rotatory rolling disc 5 makes second threaded rod 6 rotate and rises, and gyro wheel 8 rises and makes box 1 and ground contact, and increase area of contact improves support stability, has guaranteed on the one hand to remove the transportation convenient, and on the other hand guarantees the stability when placing.
The scheme in this embodiment can be selectively combined with the scheme in other embodiments.
The working principle and the using process of the invention are as follows: the device is moved to a corresponding position through the roller 8, the movement and the transportation are convenient, after the device arrives at a destination, the rotating disc 5 is rotated to enable the second threaded rod 6 to rotate and rise, the roller 8 rises to enable the box body 1 to be in contact with the ground, the contact area is increased, the supporting stability is improved, the convenience in movement and transportation is guaranteed on one hand, and the stability in placement is guaranteed on the other hand;
secondly, the display cabinet 2 is opened, the propaganda and display cloth paper is put in, and the rotating rod 22 is rotated to enable the pressing block 24 to fix the propaganda and display cloth paper, so that the fixation is simple and firm, the time is saved, and the efficiency is improved;
the solar energy is converted into electric energy through the photovoltaic power generation mechanism and is stored in the storage battery pack, so that the electric energy is provided for electric power equipment such as the motor 410, the electric push rod 406, the LED lamp 21 and the like in the propaganda and display device, resources are reasonably utilized, and the propaganda and display device is self-sufficient, energy-saving and environment-friendly;
when the rain sensor 414 senses rain, a signal is transmitted to the controller 415, the controller 415 controls the motor 410 to rotate, the first gear 409 is driven to rotate, the first gear 409 drives the second gear 411 to rotate, the first threaded rod 412 is driven to rotate, the moving block 407 is driven to ascend, when the supporting rod 405 is completely exposed outside the box body 1, the motor 410 is turned off, the electric push rod 406 drives the moving seat 403 to ascend, the rotating rod 401 is driven to open the supporting rod to rotate the moving rod 405, the waterproof cloth is opened, the waterproof cloth completely shields the box body 1 to prevent rain, the effect is good, automatic operation is achieved, manual operation is not needed, time and labor are saved, the use is convenient, when the waterproof cloth is not used, the waterproof cloth can be retracted into the box body 1, the waterproof cloth is prevented from being exposed outside, sunshine exposure is received for a long time, and the service life of the waterproof cloth can be prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a wisdom garden management is with propaganda display device, includes box (1), its characterized in that: the upper end of the box body (1) is provided with a rainproof mechanism (4);
the rainproof mechanism (4) comprises an electric motor (410) fixed at the bottom of the box body (1), a first gear (409) is arranged at the output end of the electric motor (410), a second gear (411) is meshed and connected to one side of the first gear (409), a first threaded rod (412) is arranged inside the second gear (411), two ends of the first threaded rod (412) are rotatably connected inside the box body (1), a moving block (407) is connected to the outer portion of the first threaded rod (412) through threads, a penetrating limiting rod (408) is arranged inside the moving block (407), the limiting rod (408) is fixed at the bottom end inside the box body (1), a slotted hole (413) is formed above the moving block (407), a support frame (404) is arranged at the upper end of the moving block (407), an electric push rod (406) is arranged in the middle of the support frame (404), and a moving seat (403) is arranged at the upper end of the electric push rod (406), the top of removing seat (403) is provided with removes lid (402), four sides of removing seat (403) all are provided with articulated bull stick (401) one end, the other end of bull stick (401) articulates there is bracing piece (405), the upper end of bracing piece (405) articulates in removing lid (402) side, all be provided with the tarpaulin between bracing piece (405), the upper end avris of box (1) is provided with rain sensor (414).
2. The intelligent park management publicity display device of claim 1, which is characterized in that: the rainwater sensor is characterized in that a controller (415) is arranged in the box body (1), the input end of the controller (415) is connected with the rainwater sensor (414), and the output end of the controller (415) is respectively connected with the motor (410) and the electric push rod (406).
3. The intelligent park management publicity display device of claim 1, which is characterized in that: the surface of box (1) is provided with the recess, the embedding has show cupboard (2) in the recess, four sides in the inside of show cupboard (2) are provided with fixed block (23), fixed block (23) surface connection has dwang (22), the outer end of dwang (22) is provided with briquetting (24), the surface one side of show cupboard (2) articulates there is the transparent plastic door.
4. The intelligent park management publicity display device of claim 3, which is characterized in that: the inside of the display cabinet (2) is provided with an LED lamp (21).
5. The intelligent park management publicity display device of claim 3, which is characterized in that: the upper end of the box body (1) is provided with a photovoltaic power generation mechanism (3);
the photovoltaic power generation mechanism (3) comprises a solar photovoltaic array, a DC/AC converter, a storage battery pack and a charge and discharge controller, wherein the solar photovoltaic array is connected with the DC/AC converter, the storage battery pack and the charge and discharge controller are connected between the solar photovoltaic array and the DC/AC converter, the solar photovoltaic array is arranged at the upper end of the box body (1), the DC/AC converter, the storage battery pack and the charge and discharge controller are all arranged inside the box body (1), and the DC/AC converter is respectively connected with a motor (410), an electric push rod (406) and an LED lamp (21).
6. The intelligent park management publicity display device of claim 1, which is characterized in that: the side edge of the box body (1) is provided with a hinged box door.
7. The intelligent park management publicity display device of claim 1, which is characterized in that: the improved box is characterized in that fixing frames (7) are arranged on two sides of the box body (1), second threaded rods (6) in threaded connection are arranged on the fixing frames (7), rotating discs (5) are arranged at the upper ends of the second threaded rods (6), and idler wheels (8) are arranged at the lower ends of the second threaded rods (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110786437.2A CN113598565A (en) | 2021-07-12 | 2021-07-12 | Wisdom garden management is with propaganda display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110786437.2A CN113598565A (en) | 2021-07-12 | 2021-07-12 | Wisdom garden management is with propaganda display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113598565A true CN113598565A (en) | 2021-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110786437.2A Pending CN113598565A (en) | 2021-07-12 | 2021-07-12 | Wisdom garden management is with propaganda display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN113598565A (en) |
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| CN206630246U (en) * | 2016-12-19 | 2017-11-14 | 延安大学 | A kind of special drawing workbench of indoor design Freehandhand-drawing |
| CN206726486U (en) * | 2017-04-03 | 2017-12-08 | 郑州科技学院 | A kind of industrial and commercial administration teaching displaying suspension arrangement |
| CN207489424U (en) * | 2017-12-07 | 2018-06-12 | 湖南城市学院 | A kind of publicity board of urban planning |
| CN110081925A (en) * | 2019-03-26 | 2019-08-02 | 中国农业科学院农业环境与可持续发展研究所 | A kind of protective device for the agricultural environment information collection controller that field uses |
| CN210015637U (en) * | 2019-04-11 | 2020-02-04 | 湖南软件职业学院 | Rotatable novel education publicity column |
| CN210129378U (en) * | 2019-09-04 | 2020-03-06 | 兰州工业学院 | Colleges and universities ideological and political education propaganda device |
| CN211242537U (en) * | 2019-10-29 | 2020-08-14 | 呼伦贝尔学院 | Modern education technology display platform |
| CN112951076A (en) * | 2019-12-10 | 2021-06-11 | 湖南铁路科技职业技术学院 | Public display screen of wisdom community parking stall management show |
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2021
- 2021-07-12 CN CN202110786437.2A patent/CN113598565A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206630246U (en) * | 2016-12-19 | 2017-11-14 | 延安大学 | A kind of special drawing workbench of indoor design Freehandhand-drawing |
| CN206726486U (en) * | 2017-04-03 | 2017-12-08 | 郑州科技学院 | A kind of industrial and commercial administration teaching displaying suspension arrangement |
| CN207489424U (en) * | 2017-12-07 | 2018-06-12 | 湖南城市学院 | A kind of publicity board of urban planning |
| CN110081925A (en) * | 2019-03-26 | 2019-08-02 | 中国农业科学院农业环境与可持续发展研究所 | A kind of protective device for the agricultural environment information collection controller that field uses |
| CN210015637U (en) * | 2019-04-11 | 2020-02-04 | 湖南软件职业学院 | Rotatable novel education publicity column |
| CN210129378U (en) * | 2019-09-04 | 2020-03-06 | 兰州工业学院 | Colleges and universities ideological and political education propaganda device |
| CN211242537U (en) * | 2019-10-29 | 2020-08-14 | 呼伦贝尔学院 | Modern education technology display platform |
| CN112951076A (en) * | 2019-12-10 | 2021-06-11 | 湖南铁路科技职业技术学院 | Public display screen of wisdom community parking stall management show |
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Application publication date: 20211105 |