CN113007511A - LED display screen connecting device of angularly adjustable - Google Patents
LED display screen connecting device of angularly adjustable Download PDFInfo
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- CN113007511A CN113007511A CN202110138660.6A CN202110138660A CN113007511A CN 113007511 A CN113007511 A CN 113007511A CN 202110138660 A CN202110138660 A CN 202110138660A CN 113007511 A CN113007511 A CN 113007511A
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- display screen
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- 239000000284 extract Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/22—Undercarriages with or without wheels with approximately constant height, e.g. with constant length of column or of legs
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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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)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
An LED display screen connecting device with an adjustable angle comprises a bearing plate and a clamping assembly; the display screen body is placed on the bearing plate, and the elastic telescopic device is connected with the bearing plate and the first clamping piece; the supporting piece is connected with the fixed seat and the base; the rotating shaft is rotatably connected with the fixed seat, and the clamping assembly clamps the rotating shaft; the bottom of the bearing plate is vertically provided with a connecting piece, and the connecting piece is connected with the rotating shaft; a first negative pressure cavity is arranged in the base, and the first suction piece is arranged at the bottom of the base; the first connecting pipe is communicated with the first negative pressure cavity and the first suction accessory, and the first negative pressure pipe is communicated with the first negative pressure cavity; the back plate is arranged on the bearing plate, and a second negative pressure cavity is arranged in the back plate; the second adsorbs the piece and adsorbs the display screen body, and second connecting pipe intercommunication second negative pressure chamber and second adsorb the piece, second negative pressure pipe and second negative pressure chamber intercommunication. The angle adjusting device not only facilitates the adjustment of the angle of the display screen, but also can effectively fix the display screen, facilitates the disassembly and assembly of the display screen and is beneficial to use.
Description
Technical Field
The invention relates to the technical field of LED display screens, in particular to an LED display screen connecting device with an adjustable angle.
Background
The display screen is a screen body formed by a plurality of display units which can be combined and spliced, and a set of proper main control panel or control system is added, so that a plurality of display panels with various specifications can be combined with controllers with different control technologies to form a plurality of display screens so as to meet the requirements of different environments and different display requirements; the LED display screen is a flat panel display and consists of small LED module panels, and is generally used for displaying various information such as characters, images, videos, video signals and the like; the existing LED display screen is generally directly placed on a table top, is difficult to effectively fix, is easy to damage due to overturning, is inconvenient to adjust the angle, has poor using effect and needs to be improved.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides the LED display screen connecting device with the adjustable angle, which not only facilitates the adjustment of the angle of the display screen, but also can effectively fix the display screen, has a good fixing effect, facilitates the disassembly and assembly of the display screen, is simple to operate and is beneficial to use.
(II) technical scheme
The invention provides an LED display screen connecting device with an adjustable angle, which comprises a bearing plate, an elastic telescopic device, a first clamping piece, a fixed seat, a rotating shaft, a supporting piece, a base, a back plate, a first negative pressure pipe, a second negative pressure pipe, a first connecting pipe, a first suction accessory, a second connecting pipe and a clamping assembly, wherein the first clamping piece is arranged on the bearing plate;
the display screen body is placed on the bearing plate, the first clamping pieces are positioned on two sides of the bearing plate and clamp the display screen body, and the elastic telescopic device is transversely arranged and connected with the bearing plate and the first clamping pieces; the fixed seat is positioned above the base, and the supporting piece is vertically arranged and connected with the fixed seat and the base; the fixing seat is provided with a groove, the rotating shaft is transversely arranged in the groove and is rotationally connected with the fixing seat, and the clamping assembly is arranged on the fixing seat and clamps the rotating shaft; the bottom of the bearing plate is vertically provided with a connecting piece, and the connecting piece is connected with the rotating shaft;
a first negative pressure cavity is arranged in the base, and the first suction piece is arranged at the bottom of the base; the first connecting pipe is communicated with the first negative pressure cavity and the first suction accessory, and the first negative pressure pipe is communicated with the first negative pressure cavity; the back plate is arranged on the bearing plate and is positioned behind the display screen body, and a second negative pressure cavity is arranged in the back plate; the second adsorbs the piece and adsorbs the display screen body, and second connecting pipe intercommunication second negative pressure chamber and second adsorb the piece, second negative pressure pipe and second negative pressure chamber intercommunication.
Preferably, the elastic telescopic device comprises a spring, a limiting cylinder, a sliding rod and a limiting block;
the limiting cylinder is transversely arranged on the bearing plate, the sliding rod is transversely arranged and connected with the first clamping piece, and the sliding rod is inserted into the limiting cylinder; the limiting block is arranged on the sliding rod and positioned in the limiting cylinder, and the spring is arranged in the limiting cylinder and connected with the limiting block.
Preferably, a clamping groove is formed in the first clamping piece, and two sides of the display screen body are inserted into the clamping groove.
Preferably, the device further comprises an air exhaust device; the air extracting device is arranged on the base and is provided with an air extracting pipe; the exhaust pipe is connected with the first negative pressure pipe and the second negative pressure pipe, and the first negative pressure pipe and the second negative pressure pipe are respectively provided with a valve.
Preferably, the air suction pipe is provided with an air inlet pipe, and the air inlet pipe is provided with a valve.
Preferably, the clamping assembly comprises an adjusting part, a stud, a moving block, a rotating rod, a sliding block and a second clamping part;
a first cavity and a second cavity are arranged on two sides of the fixed seat, and two ends of the rotating shaft extend into the first cavities; the stud is transversely arranged in the second cavity, and the adjusting piece is connected with the stud; the moving block is in threaded connection with the stud, and the upper side and the lower side of the moving block are respectively provided with a connecting rod; a guide groove for communicating the first cavity with the second cavity is formed in the fixed seat, and a guide rod is arranged in the guide groove; the sliding block is connected with the guide rod in a sliding manner, and the rotating rod is connected with the sliding block and the connecting rod in a rotating manner; the second clamping piece is arranged in the first cavity and connected with the sliding block, and the rotating shaft is clamped by the second clamping piece.
Preferably, the second clamping members are in a plurality of groups and are distributed in an annular array around the rotation axis.
Preferably, the second clamping part is of an arc-shaped structure, an anti-skid layer is arranged on the second clamping part, and the anti-skid layer abuts against the rotating shaft.
Preferably, the bottom of the back plate is provided with a movable block, the bearing plate is longitudinally provided with a limiting sliding groove, and the movable block is positioned in the limiting sliding groove and is in sliding connection with the bearing plate.
The invention also provides a using method of the LED display screen connecting device with the adjustable angle, which comprises the following steps:
s1, applying tension to the elastic expansion devices on the two sides to increase the distance between the two first clamping pieces;
s2, placing the display screen body on the bearing plate, loosening the elastic telescopic device, and clamping the display screen body by the two first clamping pieces;
s3, the first negative pressure pipe extracts air in the first negative pressure cavity, and the first suction part is in a negative pressure state and is adsorbed on the table board;
s4, the second negative pressure pipe extracts air in the second negative pressure cavity, and the second adsorption piece is in a negative pressure state and adsorbs the back of the display screen body;
s5, rotating the adjusting piece to enable the stud to rotate, enabling the moving block to move along with the stud, further enabling the sliding blocks to move through the connecting rod and the rotating rod, enabling the rotating shaft to be loosened through the second clamping pieces, and enabling the display screen body to be adjusted to a required angle under the action of force exerted on the display screen body;
and S6, after the angle adjustment is completed, the adjusting pieces are rotated reversely, finally, the rotating shafts are clamped by the second clamping pieces, and the display screen body keeps the adjusted inclination angle.
The technical scheme of the invention has the following beneficial technical effects:
when the display screen is installed, the elastic expansion devices on the two sides are applied with tensile force to increase the distance between the two first clamping pieces, the display screen body is placed on the bearing plate, the elastic expansion devices are loosened, and the two first clamping pieces clamp the display screen body, so that the display screen body is preliminarily fixed; the second negative pressure pipe pumps out air in the second negative pressure cavity, and the second adsorption piece adsorbs the back of the display screen body, so that the fixing effect on the display screen body is obviously improved, the display screen body is convenient to disassemble and assemble, and the use is facilitated;
when the angle is adjusted, the adjusting piece is rotated to enable the stud to rotate, the moving block moves along with the stud, the rotating rod is further deflected through the connecting rod, each sliding block moves along the guide rod, each second clamping piece loosens the rotating shaft, and at the moment, the display screen body is adjusted to a required angle under the action of force; after the angle adjustment is finished, the second clamping pieces clamp the rotating shaft, and the display screen body keeps the adjusted inclination angle, so that the operation is simple, the angle of the display screen body can be conveniently adjusted, and the use is facilitated; the first negative pressure pipe pumps out air in the first negative pressure cavity, so that the interior of each first suction piece is in a negative pressure state through the first connecting pipe, the first suction pieces are adsorbed on the table board, the device is prevented from being overturned and damaged, and the using effect is excellent.
Drawings
Fig. 1 is a schematic structural diagram of an angle-adjustable LED display screen connection device according to the present invention.
Fig. 2 is an enlarged view of a portion a of the LED display screen connection device with an adjustable angle according to the present invention.
Fig. 3 is a schematic connection diagram (side view) of a second clamping member and a rotating shaft in the angle-adjustable LED display screen connection device according to the present invention.
Fig. 4 is a schematic connection diagram (top view) of a supporting plate and a back plate in the angle-adjustable LED display screen connection device according to the present invention.
Fig. 5 is a schematic structural diagram of a base in the LED display screen connection device with an adjustable angle according to the present invention.
Fig. 6 is a schematic structural diagram of an elastic expansion device in the LED display screen connection device with an adjustable angle according to the present invention.
Reference numerals: 1. a display screen body; 2. a carrier plate; 3. an elastic telescopic device; 4. a first clamping member; 5. a card slot; 6. a fixed seat; 7. a connecting member; 8. a rotating shaft; 9. a groove; 10. a support member; 11. a base; 12. a first cavity; 13. a second cavity; 14. an adjustment member; 15. a stud; 16. a moving block; 17. a connecting rod; 18. rotating the rod; 19. a slider; 20. a guide groove; 21. a guide bar; 22. a second clamping member; 23. an anti-slip layer; 24. a back plate; 25. an air extraction device; 26. an air exhaust pipe; 27. a first negative pressure tube; 28. a second negative pressure tube; 29. a first negative pressure chamber; 30. a first connecting pipe; 31. a first suction attachment; 32. a spring; 33. a second negative pressure chamber; 34. a second adsorption member; 35. a second connecting pipe; 36. a limiting cylinder; 37. a slide bar; 38. and a limiting block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1 to 6, the LED display screen connection device with an adjustable angle provided by the present invention includes a bearing plate 2, an elastic expansion device 3, a first clamping member 4, a fixing seat 6, a rotating shaft 8, a supporting member 10, a base 11, a back plate 24, an air extractor 25, a first negative pressure tube 27, a second negative pressure tube 28, a first connection tube 30, a first suction member 31, a second suction member 34, a second connection tube 35, and a clamping assembly;
the display screen body 1 is placed on the bearing plate 2, the first clamping pieces 4 are positioned on two sides of the bearing plate 2 and clamp the display screen body 1, and the elastic telescopic device 3 is transversely arranged and connected with the bearing plate 2 and the first clamping pieces 4; the fixed seat 6 is positioned above the base 11, and the supporting piece 10 is vertically arranged and connected with the fixed seat 6 and the base 11; a groove 9 is formed in the fixed seat 6, the rotating shaft 8 is transversely arranged in the groove 9 and is rotatably connected with the fixed seat 6, and the clamping assembly is arranged on the fixed seat 6 and clamps the rotating shaft 8; the bottom of the bearing plate 2 is vertically provided with a connecting piece 7, and the connecting piece 7 is connected with a rotating shaft 8;
the clamping assembly comprises an adjusting part 14, a stud 15, a moving block 16, a rotating rod 18, a sliding block 19 and a second clamping part 22; a first cavity 12 and a second cavity 13 are arranged on two sides of the fixed seat 6, and two ends of the rotating shaft 8 extend into the first cavity 12; the stud 15 is transversely arranged in the second cavity 13, and the adjusting piece 14 is connected with the stud 15; the moving block 16 is in threaded connection with the stud 15, and the upper side and the lower side of the moving block 16 are respectively provided with a connecting rod 17; a guide groove 20 communicating the first cavity 12 and the second cavity 13 is arranged in the fixed seat 6, and a guide rod 21 is arranged in the guide groove 20; the slide block 19 is connected with the guide rod 21 in a sliding way, and the rotating rod 18 is connected with the slide block 19 and the connecting rod 17 in a rotating way; the second clamping piece 22 is arranged in the first cavity 12 and connected with the slide block 19, and the second clamping piece 22 clamps the rotating shaft 8; the number of the second clamping pieces 22 is multiple and is distributed in an annular array around the rotating shaft 8;
a first negative pressure cavity 29 is arranged in the base 11, and a first suction piece 31 is arranged at the bottom of the base 11; the first connection pipe 30 communicates with the first negative pressure chamber 29 and the first suction member 31, and the first negative pressure pipe 27 communicates with the first negative pressure chamber 29; the back plate 24 is arranged on the bearing plate 2 and is positioned at the rear of the display screen body 1, and a second negative pressure cavity 33 is arranged in the back plate 24; the second adsorption piece 34 adsorbs the display screen body 1, the second connecting pipe 35 is communicated with the second negative pressure cavity 33 and the second adsorption piece 34, and the second negative pressure pipe 28 is communicated with the second negative pressure cavity 33; the air extractor 25 is arranged on the base 11, and an air extracting pipe 26 is arranged on the air extractor 25; the suction pipe 26 is connected to a first negative pressure pipe 27 and a second negative pressure pipe 28, and the first negative pressure pipe 27 and the second negative pressure pipe 28 are respectively provided with a valve.
In an alternative embodiment, the elastic expansion device 3 comprises a spring 32, a limiting cylinder 36, a sliding rod 37 and a limiting block 38; the limiting cylinder 36 is transversely arranged on the bearing plate 2, the sliding rod 37 is transversely arranged and connected with the first clamping piece 4, and the sliding rod 37 is inserted into the limiting cylinder 36; the limiting block 38 is arranged on the sliding rod 37 and is positioned in the limiting cylinder 36, and the spring 32 is arranged in the limiting cylinder 36 and is connected with the limiting block 38.
In an alternative embodiment, the first clamping member 4 is provided with a clamping groove 5, and two sides of the display screen body 1 are inserted into the clamping groove 5, which is helpful for improving the fixing effect of the display screen body 1.
In an alternative embodiment, an air inlet pipe is provided on the air exhaust pipe 26, and a valve is provided on the air inlet pipe.
In an alternative embodiment, the second clamping member 22 is an arc-shaped structure, the anti-slip layer 23 is disposed on the second clamping member 22, and the anti-slip layer 23 abuts against the rotating shaft 8, so that the clamping effect on the rotating shaft 8 is significantly improved.
In an alternative embodiment, the bottom of the back plate 24 is provided with a movable block, the bearing plate 2 is longitudinally provided with a limiting sliding groove, and the movable block is located in the limiting sliding groove and slidably connected with the bearing plate 2, so that the distance between the back plate 24 and the display screen body 1 can be conveniently adjusted, and the second adsorption piece 34 can be helped to adsorb the display screen body 1.
The invention also provides a using method of the LED display screen connecting device with the adjustable angle, which comprises the following steps:
s1, applying tension to the elastic expansion devices 3 on the two sides to increase the distance between the two first clamping pieces 4;
s2, placing the display screen body 1 on the bearing plate 2, loosening the elastic expansion device 3, and clamping the display screen body 1 by the two first clamping pieces 4;
s3, the first negative pressure pipe 27 pumps out air in the first negative pressure cavity 29, and the first suction part 31 is in a negative pressure state and is adsorbed on the table top;
s4, the second negative pressure tube 28 pumps out the air in the second negative pressure cavity 33, and the second suction member 34 is in a negative pressure state and sucks the back surface of the display screen body 1;
s5, rotating the adjusting member 14 to rotate the stud 15, moving the moving block 16, further moving the sliders 19 through the connecting rod 17 and the rotating rod 18, and releasing the rotating shaft 8 from the second clamping members 22, wherein the force is applied to the display screen body 1 to adjust the display screen body to a required angle;
and S6, after the angle adjustment is finished, the adjusting pieces are rotated reversely, finally, the rotating shaft 8 is clamped by the second clamping pieces 22, and the display screen body 1 keeps the adjusted inclination angle.
When the display screen fixing device is used, tensile force is applied to the elastic expansion devices 3 on the two sides to increase the distance between the two first clamping pieces 4, the display screen body 1 is placed on the bearing plate 2, the elastic expansion devices 3 are loosened, the two first clamping pieces 4 clamp the display screen body 1, and preliminary fixing of the display screen body 1 is achieved; the second negative pressure pipe 28 extracts air in the second negative pressure cavity 33, so that the interior of the second adsorption piece 34 is in a negative pressure state, and the second adsorption piece 34 adsorbs the back of the display screen body 1, thereby obviously improving the fixing effect on the display screen body 1, facilitating the disassembly and assembly of the display screen body 1 and facilitating the use;
then, the adjusting member 14 is rotated to rotate the stud 15, the moving block 16 moves accordingly, the rotating rod 18 is deflected through the connecting rod 17, the sliders 19 move along the guide rod 21, the rotating shaft 8 is released from the second clamping members 22, and the display screen body 1 is adjusted to a desired angle by applying force; after the angle adjustment is completed, the adjusting pieces are rotated reversely, and finally the rotating shaft 8 is clamped by the second clamping pieces 22, so that the display screen body 1 keeps the adjusted inclination angle, the operation is simple, the angle of the display screen body 1 can be conveniently adjusted, and the use is facilitated; the first negative pressure pipe 27 pumps out air in the first negative pressure cavity 29, the first suction fittings 31 are in a negative pressure state through the first connecting pipes 30, the first suction fittings 31 are adsorbed on the table board, the whole device is effectively fixed, the device is prevented from being overturned and damaged, and the using effect is excellent.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. An LED display screen connecting device with an adjustable angle is characterized by comprising a bearing plate (2), an elastic telescopic device (3), a first clamping piece (4), a fixed seat (6), a rotating shaft (8), a supporting piece (10), a base (11), a back plate (24), a first negative pressure pipe (27), a second negative pressure pipe (28), a first connecting pipe (30), a first absorbing piece (31), a second absorbing piece (34), a second connecting pipe (35) and a clamping assembly;
the display screen body (1) is placed on the bearing plate (2), the first clamping pieces (4) are positioned on two sides of the bearing plate (2) and clamp the display screen body (1), and the elastic telescopic device (3) is transversely arranged and connected with the bearing plate (2) and the first clamping pieces (4); the fixed seat (6) is positioned above the base (11), and the supporting piece (10) is vertically arranged and connected with the fixed seat (6) and the base (11); a groove (9) is formed in the fixed seat (6), the rotating shaft (8) is transversely arranged in the groove (9) and is rotatably connected with the fixed seat (6), and the clamping assembly is arranged on the fixed seat (6) and clamps the rotating shaft (8); the bottom of the bearing plate (2) is vertically provided with a connecting piece (7), and the connecting piece (7) is connected with a rotating shaft (8);
a first negative pressure cavity (29) is arranged in the base (11), and a first suction part (31) is arranged at the bottom of the base (11); the first connecting pipe (30) is communicated with the first negative pressure cavity (29) and the first suction part (31), and the first negative pressure pipe (27) is communicated with the first negative pressure cavity (29); the back plate (24) is arranged on the bearing plate (2) and is positioned behind the display screen body (1), and a second negative pressure cavity (33) is arranged in the back plate (24); the second adsorption piece (34) adsorbs the display screen body (1), the second connecting pipe (35) is communicated with the second negative pressure cavity (33) and the second adsorption piece (34), and the second negative pressure pipe (28) is communicated with the second negative pressure cavity (33).
2. The LED display screen connecting device with the adjustable angle as claimed in claim 1, wherein the elastic expansion device (3) comprises a spring (32), a limiting cylinder (36), a sliding rod (37) and a limiting block (38);
the limiting cylinder (36) is transversely arranged on the bearing plate (2), the sliding rod (37) is transversely arranged and connected with the first clamping piece (4), and the sliding rod (37) is inserted into the limiting cylinder (36); the limiting block (38) is arranged on the sliding rod (37) and is positioned in the limiting cylinder (36), and the spring (32) is arranged in the limiting cylinder (36) and is connected with the limiting block (38).
3. The LED display screen connecting device with the adjustable angle as claimed in claim 1, wherein the first clamping member (4) is provided with a slot (5), and two sides of the display screen body (1) are inserted into the slot (5).
4. The LED display screen connecting device with adjustable angle as claimed in claim 1, further comprising an air extracting device (25); the air extracting device (25) is arranged on the base (11), and an air extracting pipe (26) is arranged on the air extracting device (25); the air suction pipe (26) is connected with the first negative pressure pipe (27) and the second negative pressure pipe (28), and the first negative pressure pipe (27) and the second negative pressure pipe (28) are respectively provided with a valve.
5. The LED display screen connecting device with the adjustable angle as claimed in claim 4, wherein the air suction pipe (26) is provided with an air inlet pipe, and the air inlet pipe is provided with a valve.
6. The LED display screen connecting device with the adjustable angle as claimed in claim 1, wherein the clamping assembly comprises an adjusting member (14), a stud (15), a moving block (16), a rotating rod (18), a sliding block (19) and a second clamping member (22);
a first cavity (12) and a second cavity (13) are arranged on two sides of the fixed seat (6), and two ends of the rotating shaft (8) extend into the first cavity (12); the stud (15) is transversely arranged in the second cavity (13), and the adjusting piece (14) is connected with the stud (15); the moving block (16) is in threaded connection with the stud (15), and the upper side and the lower side of the moving block (16) are respectively provided with a connecting rod (17); a guide groove (20) communicating the first cavity (12) and the second cavity (13) is arranged in the fixed seat (6), and a guide rod (21) is arranged in the guide groove (20); the sliding block (19) is connected with the guide rod (21) in a sliding way, and the rotating rod (18) is connected with the sliding block (19) and the connecting rod (17) in a rotating way; the second clamping piece (22) is arranged in the first cavity (12) and connected with the sliding block (19), and the second clamping piece (22) clamps the rotating shaft (8).
7. An angularly adjustable LED display screen connecting device according to claim 6, characterized in that the number of the second holding members (22) is plural and distributed in a circular array around the rotation axis (8).
8. The LED display screen connecting device with the adjustable angle of claim 6, wherein the second clamping member (22) is an arc-shaped structure, the second clamping member (22) is provided with an anti-slip layer (23), and the anti-slip layer (23) is abutted against the rotating shaft (8).
9. The LED display screen connecting device with the adjustable angle of claim 1, wherein the bottom of the back plate (24) is provided with a movable block, the bearing plate (2) is longitudinally provided with a limiting sliding groove, and the movable block is located in the limiting sliding groove and is connected with the bearing plate (2) in a sliding manner.
10. The use method of the LED display screen connecting device with the adjustable angle according to any one of claims 1 to 9, is characterized by comprising the following steps:
s1, applying tension to the elastic expansion devices (3) on the two sides to increase the distance between the two first clamping pieces (4);
s2, placing the display screen body (1) on the bearing plate (2), loosening the elastic telescopic device (3), and clamping the display screen body (1) by the two first clamping pieces (4);
s3, the first negative pressure pipe (27) extracts air in the first negative pressure cavity (29), and the first suction part (31) is in a negative pressure state and is adsorbed on the table board;
s4, the second negative pressure pipe (28) extracts air in the second negative pressure cavity (33), and the second adsorption piece (34) is in a negative pressure state and adsorbs the back of the display screen body (1);
s5, rotating the adjusting piece (14) to enable the stud (15) to rotate, moving the moving block (16) to move, enabling the sliding blocks (19) to move through the connecting rod (17) and the rotating rod (18), loosening the rotating shaft (8) through the second clamping pieces (22), and applying force to the display screen body (1) to adjust the display screen body to a required angle;
s6, after the angle adjustment is completed, the adjusting pieces are rotated reversely, finally, the rotating shaft (8) is clamped by the second clamping pieces (22), and the display screen body (1) keeps the adjusted inclination angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110138660.6A CN113007511A (en) | 2021-02-01 | 2021-02-01 | LED display screen connecting device of angularly adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (1)
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| CN113643597A (en) * | 2021-08-12 | 2021-11-12 | 淮南师范学院 | Teaching demonstration experiment device for electromagnetics |
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