CN108335640B - Steel structure for large curved surface LED screen and layout method thereof - Google Patents
Steel structure for large curved surface LED screen and layout method thereof Download PDFInfo
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- CN108335640B CN108335640B CN201810281639.XA CN201810281639A CN108335640B CN 108335640 B CN108335640 B CN 108335640B CN 201810281639 A CN201810281639 A CN 201810281639A CN 108335640 B CN108335640 B CN 108335640B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 259
- 239000010959 steel Substances 0.000 title claims abstract description 259
- 238000000034 method Methods 0.000 title claims description 11
- 238000003466 welding Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims 1
- 238000009434 installation Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
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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
- G09F9/302—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 characterised by the form or geometrical disposition of the individual elements
- G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
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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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- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a steel structure for a large curved surface LED screen, which comprises a main steel structure, a secondary steel structure, a tertiary steel structure and an adjusting layer which are sequentially connected, and a first adjusting device for connecting the main steel structure and the secondary steel structure and a second adjusting device for connecting the secondary steel structure and the tertiary steel structure. The main steel structure is formed by fixedly connecting square steel pipes and is distributed on the back of the large curved surface LED screen at equal intervals according to the outer contour of the large curved surface LED screen; the secondary steel structure is formed by fixedly connecting round steel pipes, is fixedly connected with the main steel structure through a first adjusting device, and can adjust the radian of the secondary steel structure by using the first adjusting device so as to match the radian of the large-scale curved surface LED screen; the third steel structure is formed by fixedly connecting square steel pipes, is fixedly connected with the second steel structure through a second adjusting device, and can adjust the radian of the third steel structure by using the second adjusting device so as to match the radian of the large-scale curved surface LED screen.
Description
Technical Field
The invention relates to a steel structure for a large curved surface LED screen and a layout method thereof.
Background
Along with the continuous development of the LED industry, in order to meet market demands, LED display screens with large curved surfaces are more and more, steel structures for supporting the LED screens with large curved surfaces are formed by directly welding steel pipes in an inlet-outlet mode, and the problems that manufacturing and accumulation errors are large, installation of the LED screens with large curved surfaces with small intervals cannot be met, installation display effects are poor and the like exist.
Disclosure of Invention
Aiming at the problems of the steel structure of the large curved surface LED screen, the invention aims to provide a steel structure which is convenient to process and produce and can be installed and adjusted at a later stage, and a layout method thereof.
The invention relates to a steel structure for a large curved surface LED screen, which comprises a main steel structure, a secondary steel structure, a tertiary steel structure and an adjusting layer which are sequentially connected, and a first adjusting device for connecting the main steel structure and the secondary steel structure and a second adjusting device for connecting the secondary steel structure and the tertiary steel structure,
the main steel structure is formed by fixedly connecting square steel pipes and is distributed on the back surface of the large curved surface LED screen at equal intervals according to the outer contour of the large curved surface LED screen;
the secondary steel structure is formed by fixedly connecting round steel pipes, is fixedly connected with the main steel structure through the first adjusting device, and can adjust the radian of the secondary steel structure by utilizing the first adjusting device so as to match the radian of the large-scale curved-surface LED screen;
the third steel structure is formed by fixedly connecting square steel pipes, is fixedly connected with the second steel structure through the second adjusting device, and can adjust the radian of the third steel structure by utilizing the second adjusting device so as to match the radian of the large-scale curved surface LED screen.
The main steel structure comprises a plurality of equidistant distributed integral sheet frames, and each integral sheet frame comprises a straight cubic steel pipe, a transverse square steel pipe, an oblique square steel pipe and an arc square steel pipe which are mutually welded and fixedly or fixedly connected through bolts.
The secondary steel structure comprises a plurality of round steel pipes which are parallel and distributed in a weft mode, and the tertiary steel structure comprises a plurality of square steel pipes distributed in a warp mode.
The secondary steel structure comprises a plurality of round steel pipes which are parallel and distributed in an arc line, and the tertiary steel structure comprises a plurality of square steel pipes which are distributed in a crisscross manner with the round steel pipes.
The first adjusting device comprises an L-shaped fixing piece, a T-shaped fixing piece, a first hoop and a supporting piece, wherein the L-shaped fixing piece is connected with the whole sheet frame and the T-shaped fixing piece, the T-shaped fixing piece can linearly move in a through hole of the L-shaped fixing piece through connection of an adjusting bolt, the end part of the T-shaped fixing piece is connected and fixed with the first hoop, and a round steel pipe of a secondary steel structure is arranged above the supporting piece and then inserted into the first hoop.
The second adjusting device comprises two right-angle fixing pieces and a second hoop, wherein the two right-angle fixing pieces are respectively positioned at two side edges of the square steel pipe of the cubic steel structure, each right-angle fixing piece is directly and fixedly connected with the square steel pipe, the other right-angle edge is connected with the second hoop, and the round steel pipe of the secondary steel structure is penetrated in the second hoop.
The round steel pipes are arranged in a segmented mode according to the distance between the integral sheet frames.
The layout method of the steel structure is implemented according to the following steps:
1) Welding or bolting square steel pipes to form a local sheet frame consisting of a straight cubic steel pipe, a transverse square steel pipe and an oblique square steel pipe, and welding or bolting arc-shaped square steel pipes to form an integral sheet frame;
2) N integral sheet frames are distributed according to hemispheres and are distributed and fixed in N-1 equal parts to form a main steel frame for fixing the LED curved surface screen, wherein N is a positive integer greater than 1;
3) Dividing the round steel pipe into N-1 equal parts, respectively connecting the equal parts between two adjacent integral sheet frames through a first adjusting device, and arranging the upper round steel pipe and the lower round steel pipe in parallel to form a secondary steel structure;
4) Connecting and fixing a square steel pipe of another model on the round steel pipe through a second adjusting device to form a tertiary steel structure;
5) And fixedly mounting the perforated steel plates with various sizes on the square steel pipe with the cubic steel structure to form a final adjusting layer for mounting the LED unit.
And step 2), 3) and 4) are added, and a total station is adopted to check the size of each point.
By adopting the steel structure layout of the large-scale curved-surface LED screen, the invention can effectively improve the dimensional requirement on curvature, improve the installation precision of the LED display module, reduce the installation joint of the display screen and eliminate the stupefied feeling and joint black line of the curved-surface LED display screen body spliced by the module. And through bolted connection, effectively alleviate the problem of expend with heat and contract with cold to convenient transportation.
Drawings
Fig. 1 is a schematic perspective view of a steel structure of a large curved LED screen according to the present invention.
Fig. 2 is a schematic top view of a steel structure of a large curved LED screen of the present invention.
Fig. 3 is a schematic front view of a steel structure of a large curved LED screen of the present invention.
Fig. 4 is a schematic side view of a steel structure of a large curved LED screen of the present invention.
Fig. 5 is a schematic perspective view of the integral sheet frame in the present invention.
Fig. 6a is a schematic view of a structure in which perforated steel plates are sequentially laid out in the present invention.
Fig. 6b is a partially enlarged schematic view of the open-pore steel sheet according to the present invention.
Fig. 7 is an enlarged schematic view of fig. 1 a.
Fig. 8 is an enlarged schematic view shown in fig. 3B.
Fig. 9 is an enlarged schematic view of fig. 3C.
Fig. 10 is an enlarged schematic view shown in fig. 3D.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The invention is illustrated by taking a large spherical LED screen as an example, but is not limited to the large spherical LED screen, and the large spherical LED screen can be various large curved LED screens, such as spherical, arc-shaped, hyperboloid-shaped curved domes, and the like, and steel structures for supporting the curved domes can also be different shapes according to the curved domes with different shapes, but the specific forming method and layout are the same.
As shown in fig. 1 to 4, the steel structure for a large-sized LED screen of the present invention includes a main steel structure 1, a secondary steel structure 2, a tertiary steel structure 3 and an adjustment layer 6 connected in sequence, and a first adjustment device 4 for connecting the main steel structure 1 and the secondary steel structure 2, and a second adjustment device 5 for connecting the secondary steel structure 2 and the tertiary steel structure 3, wherein:
the main steel structure 1 is formed by welding and connecting 80 square steel pipes, can also be formed by bolting and fixing, and comprises 10 integral sheet frames 14 which are enclosed into a hemisphere, namely, the 10 integral sheet frames 14 divide the hemisphere into 9 equal parts, each equal part is 20 degrees, and the hemispheres are orderly arranged and enclosed. As shown in fig. 5, each integral sheet frame 14 comprises four upright square steel pipes 10 which are different in length and are arranged vertically in parallel, an arc-shaped square steel pipe 13 which is bent into an arc shape in advance according to the curved surface shape of the LED screen, and a plurality of transverse square steel pipes 11 are connected and fixed between the four upright square steel pipes 10 and between the upright square steel pipes 10 and the arc-shaped square steel pipes 13 to form a whole, and an oblique square steel pipe 12 is arranged in a square space formed between the transverse square steel pipes 11 and the upright square steel pipes 10 for increasing the strength of the integral sheet frame 14.
However, in the actual construction process, the straight cubic steel pipe 10, the transverse square steel pipe 11 and the oblique square steel pipe 12 are welded (or may be bolts) to be connected and fixed to form a local sheet frame, and then the arc square steel pipe 13 is welded and fixed to form an integral sheet frame 14. The upright square steel pipe 10, the transverse square steel pipe 11, the arc square steel pipe 13 and the oblique square steel pipe 12 in the invention can be 80 square steel pipes, and of course, square steel pipes of different types can be adopted, but enough strength needs to be ensured. In addition, the number of the straight cubic steel pipes 10 in each entire sheet frame 14 and the number of the entire sheet frames 14 are not limited thereto, and may be set according to the size of the LED curved surface screen.
The secondary steel structure 2 includes 21 60 round steel pipes 20 which are parallel up and down and are positioned on the hemispherical weft, and the number of the round steel pipes 20 can be determined according to the weight of the LED screen, but is not limited thereto. Each round steel pipe 20 may be formed by bending a whole round steel pipe, or may be divided into 9 equal parts for convenience in transportation, corresponding to the number of the divided hemispheres of the whole sheet frame 14, or may be more. The round steel pipe 20 and the integral sheet frame 14 are fixedly connected by the first adjusting device 4 and are positioned on the inner side of the arc-shaped square steel pipe 13 of the integral sheet frame 14, as shown in fig. 7, the radian of the whole round steel pipe 20 on the same latitude can be adjusted by using the first adjusting device 4 so as to be matched with the radian of the LED curved surface screen.
The third steel structure 3 is a plurality of 40 square steel pipes 30 distributed along the radial line position of the hemispherical body, and is fixedly connected with the round steel pipe 20 of the second steel structure 2 by the second adjusting device 5, as shown in fig. 8, and is positioned at the other side of the second steel structure 2 relative to the main steel structure 1. The distance between the square steel pipes 30 in the triple-pass steel structure 3 is set according to the size of the perforated steel plate 60 in the adjustment layer 6, and the perforated steel plate 60 may be fixed to the square steel pipes 30.
Of course, when the large curved surface LED screen is not hemispherical and is in a large curved surface shape, the square steel pipe 30 in the tertiary steel structure 3 can be arranged vertically and horizontally with the round steel pipe 20 in the secondary steel structure 2.
As shown in fig. 6a, the adjustment layer 6 is fixedly mounted on the inner side surface of the cubic steel structure 3. The adjusting layer 6 comprises a plurality of perforated steel plates 60, the size of each perforated steel plate 60 corresponds to the size of an LED unit forming an LED screen, and the LED units used for forming the large-scale hemispheroidal LED screen are formed by dividing all the LED units into 110 parts from the outermost circle to the center of a circle according to a longitude and latitude dividing method, and the included angle between each part and the center of the circle is 1.65 degrees, so that the size of the outermost largest LED unit is close to that of a conventional 288 x 240mm LED unit. As shown in fig. 6b, a large square hole 61 is formed in the middle of each perforated steel plate 60 for wiring when fixing the LED unit module, and a small square groove 62 is formed at the peripheral edge of the perforated steel plate 60, and when two perforated steel plates 60 are butted together, a small square hole 63 is formed for observing the mounting gap of the LED unit module from behind the LED screen, and arc-shaped notches 64 are formed at the four top corners of each perforated steel plate 61. Each perforated steel plate 61 is fixed on the square steel tube 30 of the cubic steel structure 3 through self-tapping and self-drilling screws, and is fixed in a flat manner according to arc notches 64 of four vertex angles of the perforated steel plate 61, and a hyperboloid is formed after installation is completed.
As shown in fig. 7, 9 and 10, the first adjusting device 4 includes an L-shaped fixing member 40, a T-shaped fixing member 41, and a first anchor ear 42, one side of the L-shaped fixing member 40 is connected and fixed with the integral frame 14, the other side is provided with a straight rod 43 of the T-shaped fixing member 41, the straight rod 43 of the T-shaped fixing member 41 can move linearly in the through hole of the L-shaped fixing member 40 through connection of an adjusting bolt 46, the end of the T-shaped fixing member 41 is connected with the first anchor ear 42 through a bolt 44, the round steel tube 20 of the secondary steel structure 2 is inserted into the first anchor ear 42, and locked with the T-shaped fixing member 41 through the bolt 44, because the L-shaped fixing member 40 and the T-shaped fixing member 41 are not enough to support the weight of the secondary steel structure 2 and the tertiary steel structure 3, a supporting member 45 is welded and fixed on the other side of the integral frame 14 opposite to the L-shaped fixing member 40, the round steel tube 20 is firstly placed above the supporting member 45, and then fastened and connected with the T-shaped fixing member 41 through the first anchor ear 42. By adjusting the adjusting bolt 46, the overall arc of the round steel tube 20 can be adjusted to accommodate the arc of the LED curved screen.
The second adjusting device 5 comprises two right-angle fixing pieces 50, a second anchor ear 51, a firm bolt 52 and other connecting pieces, the two right-angle fixing pieces 50 are respectively located at two side edges of the square steel tube 30 of the cubic steel structure 3, a right-angle edge of each right-angle fixing piece 50 is directly fixedly connected with the square steel tube 30 through a screw 53, the other right-angle edge is connected with the second anchor ear 51 through the fastening bolt 52, and the round steel tube 20 of the secondary steel structure 2 is arranged in the second anchor ear 51 in a penetrating manner through the firm bolt 52.
The square steel tube 30 of the three-time steel structure 3 is formed by bending a whole square steel tube, can be divided into a plurality of sections and connected into a whole, and the radian of the square steel tube 30 can be adjusted by means of the adjustment of the second anchor ear 51 and the fastening bolt 52 so as to be matched with the radian of the LED curved surface screen. The square steel pipe 30 of the three-time steel structure 3 is provided with a binding clip, so that the wire can be conveniently penetrated and positioned.
As shown in fig. 1 to 4, forming the steel structure layout in the present invention is performed as follows:
1. the 80 square steel pipes are welded to form a local sheet frame composed of an upright square steel pipe 10, a transverse square steel pipe 11 and an oblique square steel pipe 12, and then the arc square steel pipes 13 are welded to be connected to form an integral sheet frame 14. The 10 integral sheet frames 14 are fixed in a 9-equal-distribution manner according to the hemispheres, so as to form a main steel frame of the LED curved surface screen. The total station was used to review the size of each spot. The specific number of the integral frames 14 may be determined according to the size of the large-sized spherical LED screen, and is not limited thereto, and it is required to satisfy the supporting strength of the large-sized spherical LED screen.
2. Bending the round steel tube 20 into a latitude rod piece, as secondary steel structure 2. Each round steel pipe 20 is divided into 9 equal parts, and is respectively connected between two adjacent integral sheet frames 14 through the first adjusting device 4, and the arc-shaped round steel pipes 20 can be adjusted in radian while being connected through the first adjusting device 4. And after the completion, checking the size of each point by adopting a total station.
3. And (3) mounting the 40 square steel pipe, mounting the bent 40 square steel pipe and the secondary steel structure 2, and adjusting the size. After completion, the size review of each spot was performed with a total station.
4. Finally, perforated steel plates 60 of various sizes are installed to form the final installation adjusting layer 6. The perforated steel sheet 60 is equally divided at different angles by the calculated dimensions. The perforated steel plate 60 is installed into a hyperboloid by reasonably utilizing angles and four corner notches.
Claims (9)
1. A steel structure for a large curved surface LED screen is characterized by comprising a main steel structure, a secondary steel structure, a tertiary steel structure and an adjusting layer which are sequentially connected, and a first adjusting device for connecting the main steel structure and the secondary steel structure and a second adjusting device for connecting the secondary steel structure and the tertiary steel structure, wherein,
the main steel structure is formed by fixedly connecting square steel pipes and is distributed on the back surface of the large curved surface LED screen at equal intervals according to the outer contour of the large curved surface LED screen;
the secondary steel structure is formed by fixedly connecting round steel pipes, is fixedly connected with the main steel structure through the first adjusting device, and can adjust the radian of the secondary steel structure by utilizing the first adjusting device so as to match the radian of the large-scale curved-surface LED screen;
the third steel structure is formed by fixedly connecting square steel pipes, is fixedly connected with the second steel structure through the second adjusting device, and can adjust the radian of the third steel structure by utilizing the second adjusting device so as to match the radian of the large-scale curved-surface LED screen;
the adjusting layer is fixedly arranged on the inner side surface of the three-time steel structure, the adjusting layer comprises a plurality of perforated steel plates, the size of each perforated steel plate corresponds to the size of an LED unit forming an LED screen, a large square hole is formed in the middle of each perforated steel plate and used for wiring when the LED unit module is fixed, simultaneously, small square grooves are formed in the peripheral edges of the perforated steel plates, a small square hole is formed after two perforated steel plates are in butt joint, the small square hole is used for observing the mounting gaps of the LED unit modules from the rear of the LED screen, and arc-shaped notches are formed in the four vertex angles of each perforated steel plate.
2. The steel structure for the large-scale curved-surface LED screen according to claim 1, wherein the main steel structure comprises a plurality of equally spaced integral sheet frames, and each integral sheet frame comprises a straight cubic steel pipe, a transverse square steel pipe, an oblique square steel pipe and an arc square steel pipe which are fixedly connected with each other by welding or bolts.
3. The steel structure for the large-scale curved-surface LED screen according to claim 2, wherein the secondary steel structure comprises a plurality of round steel pipes which are parallel and distributed in a weft, and the tertiary steel structure comprises a plurality of square steel pipes distributed in a warp.
4. The steel structure for the large-scale curved-surface LED screen according to claim 2, wherein the secondary steel structure comprises a plurality of round steel pipes which are parallel and distributed in an arc line, and the tertiary steel structure comprises a plurality of square steel pipes which are distributed in a crisscross manner with the round steel pipes.
5. The steel structure for the large-scale curved-surface LED screen according to claim 3 or 4, wherein the first adjusting device comprises an L-shaped fixing piece, a T-shaped fixing piece, a first hoop and a supporting piece, the L-shaped fixing piece is connected with the integral sheet frame and the T-shaped fixing piece, the T-shaped fixing piece can move in a straight line in a through hole of the L-shaped fixing piece through connection of an adjusting bolt, the first hoop is fixedly connected with the end part of the T-shaped fixing piece, and a round steel tube of the secondary steel structure is inserted into the first hoop after being placed above the supporting piece.
6. The steel structure for the large-scale curved surface LED screen according to claim 3 or 4, wherein the second adjusting device comprises two right-angle fixing pieces and a second hoop, the two right-angle fixing pieces are respectively positioned at two side edges of the square steel tube of the cubic steel structure, a right-angle edge of each right-angle fixing piece is directly fixedly connected with the square steel tube, the other right-angle edge is connected with the second hoop, and the round steel tube of the secondary steel structure is arranged in the second hoop in a penetrating mode.
7. The steel structure for a large-scale curved LED screen according to claim 3 or 4, wherein the round steel pipes are arranged in segments according to the spacing of the integral sheet frame.
8. A method of laying out a steel structure according to any one of the preceding claims 1-4, performed by the steps of:
1) Welding or bolting square steel pipes to form a local sheet frame consisting of a straight cubic steel pipe, a transverse square steel pipe and an oblique square steel pipe, and welding or bolting arc-shaped square steel pipes to form an integral sheet frame;
2) N integral sheet frames are distributed according to hemispheres and are distributed and fixed in N-1 equal parts to form a main steel frame for fixing the LED curved surface screen, wherein N is a positive integer greater than 1;
3) Dividing the round steel pipe into N-1 equal parts, respectively connecting the equal parts between two adjacent integral sheet frames through a first adjusting device, and arranging the upper round steel pipe and the lower round steel pipe in parallel to form a secondary steel structure;
4) Connecting and fixing a square steel pipe of another model on the round steel pipe through a second adjusting device to form a tertiary steel structure;
5) And fixedly mounting the perforated steel plates with various sizes on the square steel pipe with the cubic steel structure to form a final adjusting layer for mounting the LED unit.
9. The layout method of steel structures according to claim 8, wherein the step of rechecking each spot size by using a total station is added after the steps 2), 3) and 4).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281639.XA CN108335640B (en) | 2018-04-02 | 2018-04-02 | Steel structure for large curved surface LED screen and layout method thereof |
| PCT/CN2018/094596 WO2019192093A1 (en) | 2018-04-02 | 2018-07-05 | Steel structure for large-sized curved led screen and layout method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810281639.XA CN108335640B (en) | 2018-04-02 | 2018-04-02 | Steel structure for large curved surface LED screen and layout method thereof |
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| CN108335640B true CN108335640B (en) | 2024-04-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111261058A (en) * | 2020-03-06 | 2020-06-09 | 南京洛普科技有限公司 | Curved surface display screen and bearing framework and forming method thereof |
| US11645954B2 (en) | 2020-03-06 | 2023-05-09 | Nanjing Lopu Technology Co., Ltd. | Curved display screen, curved display screen supporting framework and curved display screen forming method |
| CN112197104B (en) * | 2020-08-05 | 2022-07-26 | 深圳市德润赛尔光电有限公司 | Three-dimensional scene curved surface LED display system |
| TWI784841B (en) * | 2021-12-15 | 2022-11-21 | 智崴資訊科技股份有限公司 | Dome frame with movable components |
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|---|---|
| CN108335640A (en) | 2018-07-27 |
| WO2019192093A1 (en) | 2019-10-10 |
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