CN113833959A - Supporting structure for installing LED display screen - Google Patents

Supporting structure for installing LED display screen Download PDF

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Publication number
CN113833959A
CN113833959A CN202111000874.3A CN202111000874A CN113833959A CN 113833959 A CN113833959 A CN 113833959A CN 202111000874 A CN202111000874 A CN 202111000874A CN 113833959 A CN113833959 A CN 113833959A
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CN
China
Prior art keywords
led display
plate
fixedly connected
display screen
gear
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.)
Granted
Application number
CN202111000874.3A
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Chinese (zh)
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CN113833959B (en
Inventor
夏梦曦
李赟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Runjiang Zhihui Display Technology Co ltd
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Jiangsu Runjiang Zhihui Display Technology Co ltd
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Priority to CN202111000874.3A priority Critical patent/CN113833959B/en
Publication of CN113833959A publication Critical patent/CN113833959A/en
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Publication of CN113833959B publication Critical patent/CN113833959B/en
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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
    • 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
    • F16F15/067—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 using only wound springs
    • 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
    • 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
    • F16M11/043—Allowing translations
    • F16M11/046—Allowing translations adapted to upward-downward translation movement
    • 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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention discloses a supporting structure for installing an LED display screen, which relates to the technical field of building template conveying and comprises a fixed base, wherein a top plate is arranged at the top of the fixed base, moving mechanisms are respectively arranged inside the top plate, two supporting columns are symmetrically arranged between the fixed base and the top plate, lifting mechanisms are respectively arranged inside the two supporting columns, two lifting plates are symmetrically arranged between the two supporting columns, and limiting mechanisms are respectively arranged inside the two lifting plates. The LED display screen limiting device has the advantages that the LED display screen can be conveniently installed and operated, the purpose of limiting and fixing can be realized only by rotating the rotating disc when the LED display screen limiting device is used, and meanwhile, the LED display screens of different models can be limited, so that the LED display screens of the same model can be prevented from being installed, the LED display screens can be conveniently adjusted and lifted, and different installation operation requirements can be met.

Description

Supporting structure for installing LED display screen
Technical Field
The invention relates to the technical field of LED display screens, in particular to a supporting structure for installing an LED display screen.
Background
With the continuous development of science and technology in recent years in China, the display screen industry is advanced a lot now, the LED display screen becomes an important part in each occasion, and in order to facilitate the installation of the LED display screen, a support structure for the installation of the LED display screen is needed.
However, most of the existing LED display screens are inconvenient to install and operate, and a plurality of operators are needed to install, so that the work efficiency is reduced, a large amount of labor is consumed, meanwhile, when the problem is caused by matching, the phenomenon that the display screen falls is easily caused, and the damage of the display screen is caused, so that the supporting structure for installing the LED display screen is designed, and the problems are solved.
Disclosure of Invention
The present invention is directed to a supporting structure for mounting an LED display to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a bearing structure is used in installation of LED display screen, includes unable adjustment base, unable adjustment base's top is equipped with the roof, the inside of roof all is equipped with moving mechanism, the symmetry is equipped with two support columns, two between unable adjustment base and the roof the inside of support column all is equipped with elevating system, two the symmetry is equipped with two lifter plates, two between the support column the inside of lifter plate all is equipped with stop gear.
In a further embodiment, elevating system includes two gear boxes, two through connecting shell fixed connection, two between the gear box the equal symmetry in inside of gear box is equipped with two gears, two the one end of gear is passed through rotatory piece and is rotated the connection on the inner wall of gear box, the inside of connecting the shell is equipped with the belt, the belt runs through the connection shell respectively and extends to in the gear box, the belt is connected, every with every rotatory piece one side running through the gear box of roof is kept away from to rotatory piece, one side of support column is equipped with driving motor, and driving motor's output running through the gear box and with one of them gear fixed connection, can realize adjusting the effect that the lifter plate goes up and down to can reach the mesh of adjusting the LED display screen and carrying out lift adjustment.
In a further embodiment, the limiting mechanism comprises a supporting plate fixedly connected to the inner wall of the lifting plate, two second threaded rods are symmetrically arranged at the top of the supporting plate, the bottom ends of the two second threaded rods are fixedly connected with rotating blocks, the other end of the rotating block penetrates through the supporting plate and is fixedly connected with a worm wheel, one side of the worm wheel is engaged with a worm, the two worms are fixedly connected through a connecting rod, the opposite other ends of the two worms are rotatably connected on the inner wall of the lifting plate, one side of the lifting plate is provided with a rotating disc, one end of the rotating disc close to the lifting plate is fixedly connected with a rotating rod, and the one end that the rolling disc was kept away from to the dwang runs through the lifter plate and with worm fixed connection, the lifter plate is close to the one side symmetry at roof center and is equipped with two support frames, and then can carry out spacing operation to the LED display screen of not equidimension.
In a further embodiment, moving mechanism includes two first threaded rods and slider, two the other end that first threaded rod is relative all rotates to be connected on the inner wall of roof, two all be connected with the bevel gear on the relative terminal surface of first threaded rod, fixedly connected with protecting crust on the bottom face of roof, the bottom of protecting crust is through a plurality of spring fixedly connected with buffer boards, the inside of protecting crust is equipped with the motor, the output of motor runs through the roof and is connected with the bevel gear, two connect through the bevel gear meshing between first threaded rod and the motor, two equal threaded connection has the slider on the first threaded rod, mounting and support column fixed connection are passed through to the bottom of slider, and then can fix by the LED display screen of different length specification sizes.
In a further embodiment, a rack is fixedly connected to one side wall of the supporting column, which is far away from the top plate, and the rack is meshed with the gear, so that the gear box can be driven to move through the rotation of the rack.
In further embodiment, two equal threaded connection has the movable block on the second threaded rod, the one end fixedly connected with mounting that the movable block is close to the roof center, and the mounting keep away from the one end of movable block run through the lifter plate and with one of them support frame fixed connection, another support frame fixed connection is on the lateral wall of lifter plate, and then can drive the lifter plate through the removal of fly leaf and remove to the effect that the lifter plate goes up and down is adjusted in the realization.
In a further embodiment, moving blocks are fixedly connected to two side walls of the moving plate, two grooves are symmetrically formed in the inner wall of the fixed base, the moving plate slides in the grooves through the moving blocks, moving wheels are fixedly connected to the bottom end of the moving plate, and the top end of the moving plate is fixedly connected with the supporting columns through connecting blocks, so that the moving plate can move conveniently, and the moving plate is not prone to shaking when moving.
In a further embodiment, the two side walls of the connecting shell are fixedly connected with moving blocks, the inner wall of the supporting column is symmetrically provided with two sliding grooves, and the sliding grooves are matched with the moving blocks.
Compared with the prior art, the invention has the beneficial effects that:
the LED display screen lifting device can fix and adjust the LED display screens with different widths through the limiting mechanism and the moving mechanism, so that the LED display screens with specific models can be prevented from being used, the operation is simple, the use is convenient, the purpose of adjusting the lifting of the LED display screens can be realized through the lifting mechanism, the height of the LED display screens can be adjusted immediately according to different installation work requirements, different installation operations are met, the lifting purpose is realized in a gear transmission mode, the lifting is stable, and the phenomenon of shaking is not easy to occur.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is an enlarged view of the invention at A;
FIG. 3 is an internal view of the lifter plate of the present invention;
fig. 4 is a view of the lifter plate and support bracket of the present invention.
In the figure: 1. a fixed base; 2. a support pillar; 3. a top plate; 4. a first threaded rod; 5. a slider; 6. a lifting plate; 7. a protective shell; 8. a motor; 9. a buffer plate; 10. a second threaded rod; 11. a gear; 12. a belt; 13. a movable block; 14. a support frame; 15. a gear box; 16. a rack; 17. a connecting shell; 18. a support plate; 19. rotating the disc; 20. a worm gear; 21. a worm; 22. a connecting rod; 23. moving the plate; 24. a lifting mechanism; 25. a limiting mechanism; 26. a moving mechanism; 27. the block is rotated.
Detailed Description
The following will clearly and completely describe the technical solutions 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 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.
Example 1
Referring to fig. 1-4, the present embodiment provides a supporting structure for mounting an LED display screen, including a fixing base 1, a top plate 3 is disposed on the top of the fixing base 1, a moving mechanism 26 is disposed inside the top plate 3, two supporting columns 2 are symmetrically disposed between the fixing base 1 and the top plate 3, a lifting mechanism 24 is disposed inside the two supporting columns 2, two lifting plates 6 are symmetrically disposed between the two supporting columns 2, and a limiting mechanism 25 is disposed inside the two lifting plates 6.
Most of the existing supporting structures only limit and fix the LED display screen, so that the LED display screen is inconvenient to adjust and operate, and the LED display screen cannot be adjusted and fixed according to different models and sizes.
In order to achieve the effect of adjusting the LED displays with different lengths, the moving mechanism 26 comprises two first threaded rods 4, one ends, far away from the center of the top plate 3, of the two first threaded rods 4 are connected to the inner wall of the top plate 3 in a rotating mode, bevel gears are welded to the ends, close to the center of the top plate 3, of the two first threaded rods 4, a protective shell 7 is welded to the bottom of the top plate 3, one side, far away from the top plate 3, of the protective shell 7 is welded with a buffer plate 9 through a plurality of springs, a motor 8 is installed in the protective shell 7, the bevel gears are welded to the output end of the motor 8 and penetrate through the top plate 3, the two first threaded rods 4 are connected with the bevel gears of the motor 8 in a meshed mode, sliders 5 are arranged on the two first threaded rods 4, the sliders 5 are in threaded connection with the first threaded rods 4, fixing pieces are welded to the bottom ends of the sliders 5, and the other ends of the fixing pieces are fixedly connected with the support columns 2.
In this embodiment, can pass through starter motor 8 to realize driving the pivoted effect of bevel gear, because the bevel gear on two first threaded rods 4 is connected rather than the meshing, and then can drive the effect of two first threaded rods 4 simultaneous rotations through the rotation of motor 8, can make 5 of slider of threaded connection on first threaded rod 4 remove, and then can reach the effect that drives the removal of support column 2.
In order to reach the effect of adjusting the LED display screen of different width, stop gear 25 includes backup pad 18, backup pad 18 welds on the inner wall of lifter plate 6, the top of backup pad 18 is equipped with two second threaded rods 10, the turning block has all been welded to the one end that two second threaded rods 10 are close to backup pad 18, and the one end that second threaded rod 10 was kept away from to the turning block runs through backup pad 18 and welds worm wheel 20, one side of worm wheel 20 is equipped with worm 21, worm 21 is connected with worm wheel 20 meshing, connecting rod 22 welding is passed through to the one end that two worms 21 are relative, the one end that two worms 21 kept away from backup pad 18 center all rotates and connects on the inner wall of lifter plate 6, the outside of lifter plate 6 is equipped with rolling disc 19, the one end welding that rolling disc 19 is close to lifter plate 6 has the dwang, and the other end of dwang runs through lifter plate 6 and welds with worm 21.
In this embodiment, the LED screen is placed on a support frame 14 fixedly connected to the side wall of the lifting plate 6, and then the rotating disc 19 is rotated, so as to drive the worm 21 to rotate, because the two worms 21 are connected through the connecting rod 22, the worm wheel 20 can be driven to rotate by the rotation of the two worms 21, so as to realize the effect of driving the second threaded rod 10 to rotate, so as to realize the effect of adjusting the movable block 13 to move on the second threaded rod 10, the effect of adjusting the lifting of the other support frame 14 can be realized, thereby having the effect of limiting the width of the LED display screen and simultaneously achieving the purpose of fixing the LED display screen, two fixing plates may be installed on the surfaces of the two supporting frames 14, and a groove-like effect is achieved by a space formed between the two fixing plates, because two fixed plates are elastic materials, the LED display screen can be placed in the LED display screen.
Example 2
Referring to fig. 1-2, a further improvement is made on the basis of embodiment 1:
in order to reach different installation work demands, elevating system 24 includes two gear boxes 15, the welding of connecting shell 17 is passed through to two relative one ends of gear box 15, all be equipped with two gears 11 in two gear boxes 15, the rotatory piece 27 of one end fixedly connected with of two gears 11, the other end of rotatory piece 27 rotates and connects on the inner wall of gear box 15, be equipped with belt 12 in the connecting shell 17, belt 12's both ends all run through gear box 15 and are connected with rotatory piece 27, the outside of support column 2 is equipped with driving motor, and driving motor's output runs through support column 2 and extends to in the gear box 15, one of them gear 11 and driving motor's output welding.
In this embodiment, through starting driving motor, and then can drive one of them gear 11 and rotate, because connect through belt 12 between every gear 11 to can make a plurality of gears 11 rotate, because gear 11 meshes with rack 16 mutually, thereby can drive gear box 15 and remove, can realize driving the effect that lifter plate 6 goes up and down, thereby can play height control's purpose to LED, so that adjust different installation work.
For avoiding when adjusting the LED display screen and going up and down, touching mutually with roof 3 to cause the influence to the LED display screen, the bottom of roof 3 is equipped with protecting crust 7, and 7 bolted connections of protecting crust are on the bottom face of roof 3, and the one end that roof 3 was kept away from to protecting crust 7 has buffer board 9 through a plurality of spring weld.
When can play installation motor 8 through protecting crust 7, can play the effect of protection, when adjusting the LED display screen and rise, make two support frames 14 contact with the bottom surface of roof 3, thereby the phenomenon of bumping, and then cause the damage to the LED display screen, but through the setting of buffer board 9, make when two support frames 14 and buffer board 9 contact, through the elasticity of spring, can play the effect of subducing the impact force, thereby realize the purpose of buffering protection.
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 (8)

1. The utility model provides a bearing structure is used in installation of LED display screen, includes unable adjustment base (1), the top of unable adjustment base (1) is equipped with roof (3), the inside of roof (3) all is equipped with moving mechanism (26), the symmetry is equipped with two support columns (2), two between unable adjustment base (1) and roof (3) the inside of support column (2) all is equipped with elevating system (24), two the symmetry is equipped with two lifter plates (6), two between support column (2) the inside of lifter plate (6) all is equipped with stop gear (25).
2. The supporting structure for mounting the LED display screen according to claim 1, wherein: elevating system (24) are including two gear box (15), two through connecting shell (17) fixed connection, two between gear box (15) the equal symmetry in inside of gear box (15) is equipped with two gear (11), two the one end of gear (11) is passed through rotatory piece (27) and is rotated and connect on the inner wall of gear box (15), the inside of connecting shell (17) is equipped with belt (12), belt (12) run through respectively connect in shell (17) and extend to gear box (15), belt (12) are connected with every rotatory piece (27), every one side through gear box (15) of roof (3) are kept away from to rotatory piece (27), one side of support column (2) is equipped with driving motor, and driving motor's output runs through gear box (15) and one of them gear (11) fixed connection.
3. The supporting structure for mounting the LED display screen according to claim 1, wherein: the limiting mechanism (25) comprises a supporting plate (18) fixedly connected to the inner wall of the lifting plate (6), two second threaded rods (10) are symmetrically arranged at the top of the supporting plate (18), a rotating block is fixedly connected to the bottom ends of the second threaded rods (10), the other end of the rotating block penetrates through the supporting plate (18) and a worm wheel (20), one side of the worm wheel (20) is meshed with a worm (21), the two worms (21) are fixedly connected through a connecting rod (22), the other ends, opposite to the two worms (21), of the two worms are rotatably connected to the inner wall of the lifting plate (6), a rotating disc (19) is arranged on one side of the lifting plate (6), the rotating disc (19) is close to one end of the lifting plate (6) and fixedly connected with a rotating rod, one end, far away from the rotating disc (19), of the rotating rod penetrates through the lifting plate (6) and is fixedly connected with the worm (21), two support frames (14) are symmetrically arranged on one side of the lifting plate (6) close to the center of the top plate (3).
4. The supporting structure for mounting the LED display screen according to claim 1, wherein: the moving mechanism (26) comprises two first threaded rods (4) and a sliding block (5), the opposite ends of the two first threaded rods (4) are rotatably connected to the inner wall of the top plate (3), bevel gears are connected to the opposite end faces of the two first threaded rods (4), a protective shell (7) is fixedly connected on the bottom end surface of the top plate (3), the bottom of the protective shell (7) is fixedly connected with a buffer plate (9) through a plurality of springs, a motor (8) is arranged in the protective shell (7), the output end of the motor (8) penetrates through the top plate (3) and is connected with a bevel gear, the two first threaded rods (4) are meshed with the motor (8) through the bevel gear, sliding blocks (5) are in threaded connection with the two first threaded rods (4), the bottom end of the sliding block (5) is fixedly connected with the supporting column (2) through a fixing piece.
5. The support structure for mounting an LED display screen according to claim 2, wherein: and a rack (16) is fixedly connected to one side wall of the support column (2) far away from the top plate (3), and the rack (16) is meshed with the gear (11) and is connected with the gear.
6. The support structure for mounting an LED display screen according to claim 3, wherein: two equal threaded connection has movable block (13) on second threaded rod (10), one end fixedly connected with mounting that movable block (13) are close to roof (3) center, and the mounting is kept away from one end of movable block (13) and is run through lifter plate (6) and rather than one of them support frame (14) fixed connection, another support frame (14) fixed connection is on the lateral wall of lifter plate (6).
7. The supporting structure for mounting the LED display screen according to claim 1, wherein: the movable plate is characterized in that movable blocks are fixedly connected to two side walls of the movable plate (23), two grooves are symmetrically formed in the inner wall of the fixed base (1), the movable plate (23) slides in the grooves through the movable blocks, movable wheels are fixedly connected to the bottom ends of the movable plate (23), and the top end of the movable plate (23) is fixedly connected with the support column (2) through a connecting block.
8. The support structure for mounting an LED display screen according to claim 2, wherein: the two side walls of the connecting shell (17) are fixedly connected with moving blocks, the inner wall of the supporting column (2) is symmetrically provided with two sliding grooves, and the sliding grooves are matched with the moving blocks.
CN202111000874.3A 2021-08-30 2021-08-30 Supporting structure for mounting LED display screen Active CN113833959B (en)

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US4779540A (en) * 1987-01-30 1988-10-25 Michel Dion Accessory table for business and domestic use
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