CN112617533A - Lifting exhibition stand for exhibition and display service - Google Patents
Lifting exhibition stand for exhibition and display service Download PDFInfo
- Publication number
- CN112617533A CN112617533A CN202011461449.XA CN202011461449A CN112617533A CN 112617533 A CN112617533 A CN 112617533A CN 202011461449 A CN202011461449 A CN 202011461449A CN 112617533 A CN112617533 A CN 112617533A
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- CN
- China
- Prior art keywords
- exhibition
- fixedly connected
- bottom plate
- end surface
- worm
- 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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- 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
- A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
- A47F5/16—Platform-type show stands with flat, inclined, or curved upper surface
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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
- A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
- A47F5/0081—Show stands or display racks with movable parts
- A47F5/0093—Show stands or display racks with movable parts movable in a substantially horizontal direction
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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
- A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
- A47F5/02—Rotary display stands
- A47F5/025—Rotary display stands having mechanical drive, e.g. turntables
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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
- A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
- A47F5/10—Adjustable or foldable or dismountable display stands
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Display Racks (AREA)
- Freezers Or Refrigerated Showcases (AREA)
Abstract
The invention discloses a lifting exhibition stand for exhibition and display services, and relates to the technical field of exhibition and display services. The lifting exhibition stand for exhibition and display services comprises a bottom plate, wherein a protective shell is fixedly connected to the upper end surface of the bottom plate, a rotating device is arranged in the middle of the upper end surface of the bottom plate, a variable speed driving device is arranged on one side of the upper end surface of the bottom plate, the upper end surface of the rotating device is fixedly connected with a connecting plate, telescopic rods are fixedly connected to the front side and the rear side of the upper end surface of the connecting plate, a driver is installed on one side of the upper end surface of the connecting plate, the left side and the right side of the upper end surface of the connecting plate are respectively and rotatably connected with a threaded telescopic rod, a telescopic driving device is arranged on one side, close to the threaded telescopic rod, of the upper end surface of the bottom plate, the threaded telescopic rod and the upper end surface of the telescopic rod are jointly and fixedly connected with, the height of the exhibition stand is fixed and the bearing quality is limited.
Description
Technical Field
The invention relates to the technical field of exhibition and display services, in particular to a lifting exhibition stand for the exhibition and display services.
Background
Exhibition service is also called conference and exhibition service (exhibition service, etc.), and refers to exhibition and conference held for commodity circulation, promotion, exhibition, trade negotiation, folk exchange, enterprise communication, international exchange, etc.; the exhibition stand is designed to improve the image of the enterprise company and publicize the product of the company outwards.
But present exhibition show lift stand for service exists, and the fixed bandwagon effect of stand rotational speed is poor, and stand height is fixed and bearing quality is limited problem.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a lifting exhibition stand for exhibition and display services, which solves the problems that the existing lifting exhibition stand for exhibition and display services is poor in exhibition effect due to fixed rotating speed of the exhibition stand, fixed in height of the exhibition stand and limited in bearing quality.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an exhibition show lift stand for service includes the bottom plate, bottom plate up end fixedly connected with protecting sheathing, bottom plate up end middle part is provided with rotating device, one side of bottom plate up end is provided with variable speed drive, rotating device up end fixedly connected with the connecting plate, the equal fixedly connected with telescopic link in both sides around the connecting plate up end, the driver is installed to one side of connecting plate up end, the connecting plate up end left and right sides all rotates the connection and is connected with the screw thread telescopic link, the bottom plate up end is close to one side of screw thread telescopic link is provided with flexible drive arrangement, the common fixedly connected with roof in screw thread telescopic link and the telescopic link up end, the equal fixedly connected with universal wheel in terminal surface four corners under the bottom plate.
Preferably, the middle part of the rear part of the upper end surface of the bottom plate is fixedly connected with a rotating frame.
Preferably, the rotating device is composed of a rotating worm wheel and a rotating worm, the middle part of the upper end face of the bottom plate is fixedly connected with the rotating worm wheel, the middle part of the rotating frame is rotatably connected with the rotating worm, the rotating worm is meshed with the rotating worm wheel, and the upper end face of the rotating worm is fixedly connected with the connecting plate.
Preferably, the variable speed drive device is by the motor, the regulator, connects the cingulum, and multistage gear constitutes, motor fixed connection be in the anterior right side of bottom plate up end, regulator sliding connection be in the spout inner chamber, multistage gear rotates to be connected the rotating turret right-hand member face, multistage gear with rotate the worm and communicate each other, the one end of connecting the cingulum with multistage gear drive connects, it keeps away from to connect the cingulum the one end of multistage gear with motor output end drive connects, the regulator with the one side intermeshing of connecting the cingulum.
Preferably, the regulator comprises connecting gear, link, connecting block, electric telescopic handle, link sliding connection be in the spout inner chamber, link left end face upper portion is rotated and is connected with connecting gear, connecting block fixed connection be in the terminal surface lower part is fixed before the link, electric telescopic handle fixed connection be in bottom plate up end right side front portion, the flexible interior pole of electric telescopic handle with preceding terminal surface with connecting block fixed connection, the equal fixedly connected with disc in both sides around the connecting gear.
Preferably, flexible drive arrangement is by flexible worm, flexible worm wheel, and connecting belt connects the belt pulley to constitute, flexible worm wheel fixed connection be in terminal surface under the screw thread telescopic link, flexible worm rotates to be connected the connecting plate up end is close to two one side of screw thread telescopic link, two equal fixedly connected with of terminal surface before the flexible worm connects the belt pulley, two the transmission is connected with between the connection belt pulley connect the belt.
Preferably, the driver comprises motor, driving belt, drive wheel, motor fixed connection be in connecting plate up end middle part, driving wheel fixed connection be in flexible worm is kept away from one side of connecting the belt pulley, driving belt's one end with the one end transmission of motor is connected, driving belt keeps away from the one end of motor with the drive wheel transmission is connected.
Preferably, one side of the upper end surface of the bottom plate is fixedly connected with a sliding chute.
Preferably, the universal wheel has a brake structure, one side fixedly connected with battery in the middle of the connecting plate up end, the battery with motor electric connection.
Advantageous effects
The invention provides a lifting exhibition stand for exhibition and display services. The method has the following beneficial effects:
this exhibition show lift stand for service, through setting up the spout on the bottom plate, protecting sheathing, rotating device, speed change gear, the cooperation of connecting plate has played the effect of adjusting the roof rotational speed when using, and then has reached the purpose of adjusting the rotational speed when using, reinforcing bandwagon effect. Through the connecting plate that sets up on the bottom plate, the telescopic link, the driver, flexible drive arrangement, the screw thread telescopic link, the cooperation of roof has played the effect of adjusting device height when using, and then has reached when the personnel when using the purpose that makes things convenient for personnel to visit when more. Through the cooperation of the universal wheels arranged on the bottom plate, the device is convenient to move when in use.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of a half-section structure of the present invention;
FIG. 3 is a schematic view of the mounting structure of the present invention;
FIG. 4 is a schematic view of a variable speed drive mounting arrangement according to the present invention;
fig. 5 is a schematic view of the mounting structure of the driver of the present invention.
In the figure: 1 bottom plate, 101 spout, 2 protective housing, 3 rotating device, 301 rotates the worm wheel, 302 rotates the scroll bar, 3021 rotating turret, 4 variable speed drive, 401 motor, 402 regulator, 4021 connecting gear, 4022 link, 4023 connecting block, 4024 electric telescopic handle, 403 connecting toothed belt, 404 multi-stage gear, 5 connecting plates, 501 battery, 6 telescopic link, 7 driver, 701 motor, 702 driving belt, 703 driving wheel, 8 telescopic drive, 801 telescopic worm, 802 telescopic worm wheel, 803 connecting belt, 804 connecting belt pulley, 9 screw telescopic link, 10 roof, 11 universal wheel.
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. 1-5, the present invention provides a technical solution: the utility model provides an exhibition stand for show service includes bottom plate 1, 1 up end fixedly connected with protecting sheathing 2 of bottom plate, 1 up end middle part of bottom plate is provided with rotating device 3, one side of 1 up end of bottom plate is provided with variable speed drive 4, 3 up end fixedly connected with connecting plate 5 of rotating device, the equal fixedly connected with telescopic link 6 in both sides before and after connecting plate 5 up end, driver 7 is installed to one side of connecting plate 5 up end, the connecting connection has threaded telescopic link 9 all rotates in the 5 up end left and right sides of connecting plate, one side that the up end of bottom plate 5 is close to threaded telescopic link 9 is provided with flexible drive arrangement 8, threaded telescopic link 9 and the common fixedly connected with roof 10 of 6 up end of telescopic link, the equal fixedly connected with universal wheel 11 in terminal surface four corners under bottom plate.
In this embodiment, a rotating frame 3021 is fixedly connected to the middle portion of the rear of the upper end surface of the bottom plate 1.
In this embodiment, the rotating device 3 is composed of a rotating worm wheel 301 and a rotating worm 302, the rotating worm wheel 301 is fixedly connected to the middle of the upper end face of the bottom plate 1, the rotating worm 302 is rotatably connected to the middle of the rotating frame 3021, the rotating worm 302 is meshed with the rotating worm wheel 301, and the connecting plate 5 is fixedly connected to the upper end face of the rotating worm 302. Through setting up spout 101 on bottom plate 1, protective housing 2, rotating device 3, speed change gear 4, the cooperation of connecting plate 5 has played the effect of adjusting the roof 10 rotational speed when using, and then has reached the purpose of adjusting the rotational speed when using, reinforcing bandwagon effect.
In this embodiment, the variable speed driving device 4 comprises a motor 401, an adjuster 402, a connecting toothed belt 403, and a multi-stage gear 404, wherein the motor 401 is fixedly connected to the right side of the front portion of the upper end surface of the bottom plate 1, the adjuster 402 is slidably connected to the inner cavity of the sliding chute 101, the multi-stage gear 404 is rotatably connected to the right end surface of the rotating frame 3021, the multi-stage gear 404 is communicated with the rotating worm 302, one end of the connecting toothed belt 403 is in transmission connection with the multi-stage gear 404, one end of the connecting toothed belt 403 far away from the multi-stage gear 404 is in transmission connection with the output end of the motor 401, and.
In this embodiment, the regulator 402 is composed of a connecting gear 4021, a connecting frame 4022, a connecting block 4023 and an electric telescopic rod 4024, the connecting frame 4022 is slidably connected to the inner cavity of the chute 101, the upper portion of the left end face of the connecting frame 4022 is rotatably connected to the connecting gear 4021, the lower portion of the front end face of the connecting block 4023 is fixedly connected to the connecting frame 4022, the electric telescopic rod 4024 is fixedly connected to the front portion of the right side of the upper end face of the bottom plate 1, an inner telescopic rod of the electric telescopic rod 4024 is fixedly connected to the front end face of the electric telescopic rod 4023, and discs.
In this embodiment, the telescopic driving device 8 is composed of a telescopic worm 801, a telescopic worm wheel 802, and a connecting belt 803 and a connecting belt pulley 804, wherein the telescopic worm wheel 802 is fixedly connected to the lower end face of the threaded telescopic rod 9, the telescopic worm 802 is rotatably connected to the upper end face of the connecting plate 5 near to one side of the two threaded telescopic rods 9, the front end faces of the two telescopic worms 801 are fixedly connected to the connecting belt pulley 804, and the connecting belt 803 is in transmission connection between the two connecting belt pulleys 804.
In this embodiment, the driver 7 is composed of a motor 701, a driving belt 702, and a driving wheel 703, the motor 701 is fixedly connected to the middle of the upper end face of the connecting plate 5, the driving wheel 703 is fixedly connected to one side of the telescopic worm 802 away from the connecting belt pulley 804, one end of the driving belt 702 is in transmission connection with one end of the motor 701, and one end of the driving belt 702 away from the motor 701 is in transmission connection with the driving wheel 703. Through setting up connecting plate 5 on bottom plate 1, telescopic link 6, driver 7, flexible drive arrangement 8, threaded telescopic rod 9, the cooperation of roof 10 has played the effect of adjusting device height when using, and then has reached when the use when personnel make things convenient for the purpose that personnel visited when more.
In this embodiment, a sliding groove 101 is fixedly connected to one side of the upper end surface of the bottom plate 1.
In this embodiment, the universal wheel 11 has a brake structure, and one side fixedly connected with battery 501 in the middle of the upper end face of the connecting plate 5, battery 501 and motor 701 electric connection. The universal wheels 11 arranged on the bottom plate 1 are matched to facilitate the movement of the device in use.
In operation, a display article is placed on the top of the top plate 10, when a large number of viewers are watching, the motor 701 is started to rotate the output end of the motor 701, so that the belt 702 rotates, the driving wheel 703 rotates, the telescopic worm 801 rotates, the telescopic worm wheel 802 meshed with the telescopic worm 801 further rotates, the connecting sleeve of the threaded telescopic rod 9 rotates, so that the threaded rod extends, the telescopic inner rod on the telescopic rod 6 extends, the height of the top plate 10 further rises, the motor 401 is started to rotate the output end of the motor 401, the connecting toothed belt 403 rotates, the connecting gear 4021 rotates, the multi-stage gear 404 rotates, the rotary worm wheel 301 rotates, the rotary worm wheel 302 rotates, the connecting plate 5 rotates, the top plate 10 rotates, when the rotation speed of the top plate 10 needs to be increased, starting the electric telescopic rod 4024 to extend the telescopic inner rod, so that the connecting block 4022 moves forward, and the connecting frame 4022 slides forward, so that the connecting gear 4021 moves forward, and meanwhile, due to the arrangement of the circular disk, the connecting toothed belt 403 moves forward, and further the connecting toothed belt 403 is meshed with a smaller gear on the multi-stage gear 404, so that the rotating speed of the rotating worm 302 is increased, and further the rotating speed of the rotating worm wheel 301 is increased, and similarly, when the rotating speed needs to be reduced, the electric telescopic rod 4024 is contracted, so that the connecting block 4023, the connecting frame 4022, and the connecting gear 4021 moves backward, so that the connecting toothed belt 403 is meshed with a larger circular disk on the multi-stage gear 404, so that the rotating speed is reduced, when the device needs to be moved, the protective housing 2 is pushed, and the universal wheel 11 is rotated, so that the device is moved, and after the device reaches a proper position, thereby start the brake on the universal wheel 11 and fix the device, bottom plate 1 through setting up, spout 101, protective housing 2, rotating device 3, speed change gear 4, the effect of roof 10 rotational speed has been adjusted when using in the cooperation of connecting plate 5, and then reached and adjusted the rotational speed when using, the purpose of reinforcing bandwagon effect, bottom plate 1 through setting up, connecting plate 5, telescopic link 6, driver 7, flexible drive arrangement 8, threaded telescopic rod 9, the cooperation of roof 10, the effect of adjusting device height when using has been played, and then reached when using when the personnel more the purpose that makes things convenient for personnel to visit, bottom plate 1 through setting up, the cooperation of universal wheel 11, the effect that convenient device removed when using has been played.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
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 (9)
1. The utility model provides an exhibition show lift stand for service, includes bottom plate (1), its characterized in that: the upper end surface of the bottom plate (1) is fixedly connected with a protective shell (2), the middle part of the upper end surface of the bottom plate (1) is provided with a rotating device (3), a variable speed driving device (4) is arranged on one side of the upper end surface of the bottom plate (1), the upper end surface of the rotating device (3) is fixedly connected with the connecting plate (5), the front and the rear sides of the upper end surface of the connecting plate (5) are fixedly connected with telescopic rods (6), one side of the upper end surface of the connecting plate (5) is provided with a driver (7), the left side and the right side of the upper end surface of the connecting plate (5) are both rotationally connected with threaded telescopic rods (9), a telescopic driving device (8) is arranged on one side of the upper end surface of the bottom plate (5) close to the threaded telescopic rod (9), the upper end surfaces of the threaded telescopic rod (9) and the telescopic rod (6) are fixedly connected with a top plate (10), four corners of the lower end face of the bottom plate (1) are fixedly connected with universal wheels (11).
2. The lifting exhibition stand for exhibition and display services as claimed in claim 1, wherein: the middle part of the rear part of the upper end surface of the bottom plate (1) is fixedly connected with a rotating frame (3021).
3. The lifting exhibition stand for exhibition and display services as claimed in claim 2, wherein: rotating device (3) is by rotating worm wheel (301), rotates worm (302) and constitutes, bottom plate (1) up end middle part fixedly connected with rotate worm wheel (301), rotating turret (3021) middle part is rotated and is connected with rotate worm (302), rotate worm (302) with rotate worm wheel (301) intermeshing, rotate worm (302) up end fixedly connected with connecting plate (5).
4. The lifting exhibition stand for exhibition and display services as claimed in claim 3, wherein: the variable speed driving device (4) is composed of a motor (401), an adjustor (402), a connecting toothed belt (403) and a multi-stage gear (404), wherein the motor (401) is fixedly connected to the front right side of the upper end face of the bottom plate (1), the adjustor (402) is slidably connected to the inner cavity of the sliding chute (101), the multi-stage gear (404) is rotatably connected to the right end face of the rotating frame (3021), the multi-stage gear (404) is communicated with the rotating worm (302), one end of the connecting toothed belt (403) is in transmission connection with the multi-stage gear (404), one end of the connecting toothed belt (403) is far away from the multi-stage gear (404) is in transmission connection with the output end of the motor (401), and the adjustor (402) is in mutual engagement with one side of the connecting toothed belt (403).
5. The lifting exhibition stand for exhibition and display services as claimed in claim 1, wherein: regulator (402) by connecting gear (4021), link (4022), connecting block (4023), electric telescopic handle (4024) is constituteed, link (4022) sliding connection be in spout (101) inner chamber, link (4022) left end face upper portion is rotated and is connected with connecting gear (4021), connecting block (4023) fixed connection be in the end face lower part is fixed before link (4022), electric telescopic handle (4024) fixed connection be in bottom plate (1) up end right side front portion, electric telescopic handle (4024) flexible interior pole and preceding terminal surface with connecting block (4023) fixed connection, the equal fixedly connected with disc in both sides around connecting gear (4021).
6. The lifting exhibition stand for exhibition and display services as claimed in claim 1, wherein: telescopic drive arrangement (8) are by flexible worm (801), flexible worm wheel (802), connect belt (803) and connect belt pulley (804) and constitute, flexible worm wheel (802) fixed connection be in terminal surface under screw thread telescopic link (9), flexible worm (802) rotate to be connected connecting plate (5) up end is close to two one side of screw thread telescopic link (9), two equal fixedly connected with of terminal surface before flexible worm (801) connect belt pulley (804), two the transmission is connected with between connecting belt pulley (804) connect belt (803).
7. The lifting exhibition stand for exhibition and display services as claimed in claim 1, wherein: driver (7) comprise motor (701), driving belt (702), drive wheel (703), motor (701) fixed connection be in connecting plate (5) up end middle part, drive wheel (703) fixed connection be in flexible worm (802) are kept away from connect the one side of belt pulley (804), the one end of driving belt (702) with the one end transmission of motor (701) is connected, driving belt (702) are kept away from the one end of motor (701) with drive wheel (703) transmission is connected.
8. The lifting exhibition stand for exhibition and display services as claimed in claim 1, wherein: one side of the upper end face of the (1) is fixedly connected with a sliding chute (101).
9. The lifting exhibition stand for exhibition and display services as claimed in claim 1, wherein: the universal wheel (11) is provided with a brake structure, one side of the middle part of the upper end face of the connecting plate (5) is fixedly connected with a battery (501), and the battery (501) is electrically connected with the motor (701).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011461449.XA CN112617533A (en) | 2020-12-08 | 2020-12-08 | Lifting exhibition stand for exhibition and display service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011461449.XA CN112617533A (en) | 2020-12-08 | 2020-12-08 | Lifting exhibition stand for exhibition and display service |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112617533A true CN112617533A (en) | 2021-04-09 |
Family
ID=75312359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011461449.XA Withdrawn CN112617533A (en) | 2020-12-08 | 2020-12-08 | Lifting exhibition stand for exhibition and display service |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112617533A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113827075A (en) * | 2021-09-27 | 2021-12-24 | 北京三月雨文化传播有限责任公司 | Automatic light display adjusting device for exhibition |
-
2020
- 2020-12-08 CN CN202011461449.XA patent/CN112617533A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113827075A (en) * | 2021-09-27 | 2021-12-24 | 北京三月雨文化传播有限责任公司 | Automatic light display adjusting device for exhibition |
| CN113827075B (en) * | 2021-09-27 | 2022-07-29 | 北京三月雨文化传播有限责任公司 | Automatic light display adjusting device for exhibition |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210409 |
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| WW01 | Invention patent application withdrawn after publication |