Lifting matrix screen

Abstract

The invention relates to the field of matrix screens, in particular to a lifting matrix screen. The lifting matrix screen comprises a rotary adjusting mechanism; the display screen further comprises a plurality of lifting adjusting mechanisms installed on the rotary adjusting mechanism, and a plurality of display screen bodies distributed in a column shape are installed on any lifting adjusting mechanism in a suspended mode. The rotation adjusting mechanism comprises a set of annular disc steel frames, and the disc steel frames are horizontally arranged and can conduct circumferential rotation in the horizontal direction. The lifting adjusting mechanisms are annularly distributed and arranged on the disc steel frame at equal intervals, the disc steel frame rotates to drive the lifting adjusting mechanisms to conduct angular displacement in the horizontal direction, each lifting adjusting mechanism comprises a winding roller used for winding and unwinding a steel wire rope, and the steel wire rope is fixed to the display screen body through a clamping head. According to the lifting matrix screen provided by the invention, the position of each display screen body can be adjusted more conveniently.

Description

Technical Field

[0001] The present invention relates to the field of matrix screens, and particularly to a lifting matrix screen. Background Art

[0002] A lifting matrix screen is a display screen that can be adjusted in height. It is usually composed of multiple display units (such as LED modules) and can realize the lifting of the screen through a mechanical structure. This kind of screen is widely used in various occasions, such as commercial exhibitions, stage performances, advertising, etc., and can provide dynamic visual effects and enhance the audience experience.

[0003] In the prior art, the matrix screen can be installed on the wall or on a specially designed frame structure. When splicing and installing, relatively precise calculations need to be carried out according to the size of a single display unit itself and the size of the overall display unit after splicing to ensure that the spacing deviation value between each independent display unit does not exceed the specified standard.

[0004] However, in the process of implementation and application, there are still the following defects and deficiencies: Each of its display units is installed on the wall or frame in a fixed installation manner, so the installation operation has a more complex calculation amount, making the entire installation operation more cumbersome; at the same time, it is not conducive to subsequent short-distance lifting and moving adjustment of each display unit and the overall angular displacement.

[0005] Therefore, it is necessary to provide a new lifting matrix screen to solve the above technical problems. Summary of the Invention

[0006] To solve the above technical problems, the present invention provides a lifting matrix screen.

[0007] The lifting matrix screen provided by the present invention includes a rotation adjustment mechanism; It further includes a plurality of lifting adjustment mechanisms installed on the rotation adjustment mechanism. Any one of the lifting adjustment mechanisms is installed with a plurality of display screen bodies distributed in a columnar shape by means of suspension; The rotation adjustment mechanism includes a set of annular disc steel frames. The disc steel frames are horizontally arranged and can perform circumferential rotation in the horizontal direction; A plurality of the lifting adjustment mechanisms are annularly distributed and equidistantly arranged on the disc steel frame. The rotation of the disc steel frame drives the lifting adjustment mechanism to perform angular displacement in the horizontal direction. The lifting adjustment mechanism includes a winding roller for winding and unwinding a steel wire rope, and the steel wire rope is fixed to the display screen body through a chuck for driving the display screen body to perform lifting movement in the vertical direction.

[0008] Preferably, there is a set of brackets concentrically arranged outside the disc steel frame and with a diameter larger than that of the disc steel frame. A plurality of rollers for supporting the disc steel frame are installed on the disc steel frame and are mounted on the brackets. A first motor for driving the disc steel frame to rotate is installed on the bracket. The output end of the first motor is fixed with a first reducer through a coupling.

[0009] Preferably, the area near the outer ring surface in the disc steel frame is the load-bearing part, and the area near the inner ring surface forms a catwalk. An installation frame is fixed on the load-bearing part. A cross beam is fixed on the installation frame. The lower end of the cross beam is flange-connected with a plurality of suspension rods. There are a plurality of hanging points for hoisting on the inner ring surface and the outer ring surface of the disc steel frame.

[0010] Preferably, the lifting and adjusting mechanism further includes a frame-type steel frame. The frame-type steel frame is flange-connected with the suspension rod. The frame-type steel frame has three vertically distributed installation spaces. A second motor and a second reducer connected to the output end of the second motor are fixed inside any one of the installation spaces. The winding roller is rotatably installed on the frame-type steel frame and is in transmission connection with the second reducer. A plurality of guide pulleys for threading the steel wire rope are also installed on the frame-type steel frame.

[0011] Preferably, the steel wire rope is a soft steel rope with a man-made fiber core, and a layer of zinc is plated on the outside of the core.

[0012] Preferably, a winding roller for automatically winding and unwinding the cable is also installed on the disc steel frame. The cable is electrically connected to the display body, and the winding roller can move synchronously with the winding roller, so that the winding and unwinding of the cable and the winding and unwinding of the steel wire rope are kept in a synchronous state.

[0013] Preferably, a main electric box for supplying power to the rotation adjusting mechanism, the lifting and adjusting mechanism and the display body is also installed on the disc steel frame. A secondary electric box for separately supplying power to the rotation adjusting mechanism and the lifting and adjusting mechanism is also installed. The circuit where the display body is located and the circuits where the rotation adjusting mechanism and the lifting and adjusting mechanism are located are in parallel.

[0014] Preferably, both the rotation adjusting mechanism and the lifting and adjusting mechanism can be remotely controlled through signals.

[0015] Preferably, the display body includes a box body. An LED module and an orbital structure for positioning are installed on the side of the box body. The cable is threaded through the inside of the box body to supply electric energy to the LED module.

[0016] Compared with the related technology, the lifting matrix screen provided by the present invention has the following beneficial effects: 1. Based on the rotation adjustment mechanism, which itself has a disk-shaped steel frame that can rotate circumferentially, and the lifting adjustment mechanism is used to install the display screen body. At the same time, the lifting adjustment mechanism is installed on the disk-shaped steel frame. Therefore, by rotating the disk-shaped steel frame, the angular displacement of the display screen body can be achieved, which is used to change the orientation of the overall display unit after splicing; and the lifting adjustment mechanism can independently drive each display screen body to move up and down to adjust the position of a single display screen body, and can also change the height of the overall display unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic structural diagram of a preferred embodiment of the lifting matrix screen provided by the present invention; Figure 2 FIG. is a schematic structural diagram of the cooperation and connection between the lifting adjustment mechanism and the cross beam shown in the present invention; Figure 3 As shown in the present invention Figure 2 Schematic enlarged structural diagram at A; Figure 4 FIG. is a schematic structural diagram of the distribution state of the display screen body shown in the present invention; Figure 5 FIG. is a schematic structural diagram of the cooperation and connection between the lifting adjustment mechanism and the display screen body shown in the present invention; Figure 6 As shown in the present invention Figure 5 Schematic front view structure; Figure 7 As shown in the present invention Figure 5 Schematic top view structure; Figure 8 FIG. is a schematic structural diagram of the lifting adjustment mechanism shown in the present invention; Figure 9 FIG. is a schematic structural diagram of the device power distribution shown in the present invention; Figure 10 FIG. is a schematic structural diagram of the remote control shown in the present invention Figure One ; Figure 11 FIG. is a schematic structural diagram of the remote control shown in the present invention Figure Two .

[0018] Reference numerals in the figure: 1, rotation adjustment mechanism; 11, disk-shaped steel frame; 12, load-bearing part; 13, catwalk; 14, mounting bracket; 15, cross beam; 16, suspension rod; 17, suspension point; 2, lifting adjustment mechanism; 21, frame-shaped steel frame; 22, second motor; 23, second reducer; 24, winding roller; 25, guide pulley; 26, steel wire rope; 27, cable; 3, display screen body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0021] Please refer to Figures 1 to 3 , a lifting matrix screen provided by an embodiment of the present invention, the lifting matrix screen includes: A rotation adjustment mechanism 1 and a plurality of lifting adjustment mechanisms 2 mounted on the rotation adjustment mechanism 1. A plurality of display screen bodies 3 distributed in a columnar manner are mounted on any one of the lifting adjustment mechanisms 2 by means of suspension; Regarding the rotation adjustment mechanism 1; Please refer to Figures 1 to 4 , the rotation adjustment mechanism 1 includes a set of annular disc steel frames 11. The disc steel frames 11 are horizontally arranged and can rotate circumferentially in the horizontal direction. Outside the disc steel frames 11, there is a set of concentric brackets with a diameter larger than that of the disc steel frames 11. A plurality of rollers for supporting the disc steel frames 11 are mounted on the disc steel frames 11 and are placed on the brackets. A first motor for driving the rotation of the disc steel frames 11 is mounted on the brackets, and the output end of the first motor is fixed with a first reducer through a coupling; The area near the outer ring surface in the disc steel frames 11 is the load-bearing part 12, and the area near the inner ring surface forms a catwalk 13. An installation frame 14 is fixed on the load-bearing part 12, a cross beam 15 is fixed on the installation frame 14, and a plurality of suspension rods 16 are flange-connected to the lower end of the cross beam 15. There are a plurality of lifting points 17 on the inner ring surface and the outer ring surface of the disc steel frames 11.

[0022] It should be noted that: for the rotation adjustment mechanism 1, it is the basis of the entire device, which includes the disc steel frames 11. The disc steel frames 11 are the main structures for installation. The lifting adjustment mechanisms 2 are mounted on the disc steel frames 11. Therefore, the rotation of the disc steel frames 11 can drive the rotation of the lifting adjustment mechanisms 2, and thus can drive the display screen bodies 3 to perform angular displacement; For the rotational adjustment of the disc steel frame 11, the first motor is used as the driving source, and the first reducer is utilized to conduct power and appropriately adjust the rotational speed, thereby driving the entire disc steel frame 11 to rotate in a circular motion. Additionally, a set of brackets is provided outside the disc steel frame 11. The disc steel frame 11 is mounted on the brackets through a roller structure to achieve self-support, and at the same time, the rollers are used to assist the rotation of the disc steel frame 11, which can further enhance the stability of the disc steel frame 11 and reduce the noise interference generated during rotation. Moreover, multiple hanging points 17 are provided on the disc steel frame 11 to enable connection with the hoisting structure, thereby further enhancing the stability of the entire disc steel frame 11. The disc steel frame 11 has a load-bearing part 12 and a catwalk 13. The load-bearing part 12 is located near the outer ring surface, and the lifting adjustment mechanism 2 is installed on the load-bearing part 12. The catwalk 13 is a walkable passage, that is, workers can reach any position of the disc steel frame 11 through the catwalk 13 to facilitate the maintenance of the display body 3.

[0023] Regarding the lifting adjustment mechanism 2: Please refer to Figures 5 to 8 , the lifting adjustment mechanism 2 further includes a frame-type steel frame 21. The frame-type steel frame 21 is flange-connected to the suspension rod 16. The frame-type steel frame 21 has three vertically distributed installation spaces. Inside any installation space, a second motor 22 and a second reducer 23 connected to the output end of the second motor 22 are fixed. A winding roller 24 for winding and unwinding the steel wire rope 26 is also installed on the frame-type steel frame 21. The steel wire rope 26 is fixed to the display body 3 through a chuck and is used to drive the display body 3 to perform vertical lifting movement.

[0024] It should be noted that in the lifting adjustment mechanism 2, the second motor 22 can drive the winding roller 24 to rotate. The steel wire rope 26 is wound around the winding roller 24. By rotating the winding roller 24, the steel wire rope 26 can be wound and unwound. The other end of the steel wire rope 26 is connected to the display body 3 to achieve the installation of the display body 3 and at the same time drive the display body 3 to perform lifting movement to adjust the height of the display body 3. In each set of lifting adjustment mechanisms 2, there are three sets of winding rollers 24 distributed vertically. The steel wire ropes 26 on each set of winding rollers 24 are connected to a display body 3, and each set of winding rollers 24 has an independently driven second motor 22. Therefore, any display body 3 can be lifted and adjusted individually. It should also be noted that: All the structures included in the lifting and adjusting mechanism 2 include a winch, a guiding pulley group 25, a steel wire rope 26, steel wire rope fittings, a limit and positioning switch, an over-travel limit switch, a second motor 22, a second speed reducer 23, and a brake (the steel wire rope fittings are used to limit the steel wire rope 26 on the guiding pulley group 25 to prevent it from detaching from the guiding pulley group 25, and the brake can achieve an emergency stop of the winding roller 24. Among them, the steel wire rope fittings, the limit and positioning switch, the over-travel limit switch, and the brake are mature existing technologies and are not shown in the figure): (1) Winch: The second motor 22, the second speed reducer 23, and the winding roller 24 together form a winch structure. In all winch devices, the brake should be interlocked and controlled with the motor power supply. The brake can only be released when the motor power supply is turned on, and the brake is applied when the motor is powered off. If the brake fails when the motor is already powered off, the additional device should also keep the load stationary or run at a controllable low speed; (2) Guiding pulley 25: The pulley and pulley group should be supported by rolling bearings and have a protection device to prevent the steel wire rope 26 from slipping out of the groove; The pulley group should ensure correct installation under any conditions and leave room for adjustment. Especially for the steering pulley, the rotating steering device should have a facility to lock the pulley at the correct installation angle; Ensure the accuracy of the reference line of the steel wire rope 26 to the pulley, and the deflection angle of the steel wire rope 26 with respect to the pulley wheel should not exceed 2.5 degrees; (3) Steel wire rope 26: During the installation of the steel wire rope 26, it should be prevented from being folded or damaged; The steel wire rope 26 should be a soft steel wire rope with a man-made fiber core and be protected by galvanization; All steel wire ropes 26 should be batch-tested, clearly marked with the pre-cut length, and equipped with a batch inspection certificate; No friction should occur between the fixed part or the moving part of all steel wire ropes 26 and the equipment. Otherwise, protective measures should be added; (4) Steel wire rope fittings (not shown in the figure): Standard fittings with surface galvanization should be used; The selected fitting specifications and dimensions should match the steel wire rope 26; At least 3 or more wire clips should be correctly installed at each joint where wire clips are used; A proper connecting device must be used at the connection between the steel wire rope 26 and the suspension rod 16, and a turnbuckle is used to adjust the tightness; Important end joints of the steel wire rope 26 should use braided joints, wedge joints, alloy pressing joints, or alloy casting joints; (5) Limit and positioning switch (not shown in the figure): The travel end limit switch should be able to detect the normal travel end of the equipment and make it stop; The travel end limiter should be a special product or a specially made switch installed on the transmission device; (6) Over-travel limit switch (not shown in the figure): A separate over-travel limit switch should be installed for all electric equipment to prevent mechanical damage when the travel end limit switch fails; This limit switch can cut off the main power supply of the electric equipment. When the load reaches the normal travel end, the over-travel limit switch should be able to restore the original setting; (7) Second motor 22: A fully enclosed air-cooled AC motor with an insulation grade not less than Class F, a protection grade not less than IP54, and a power factor not less than 0.85; (8) Second reducer 23: The gear reducer is usually a helical gear reducer or a worm gear type; the gear transmission device should consider the torque and power required for safe transmission, and consider the impact load; (9) Brakes (not shown): All brakes should be fail-safe. When the power is off, the brakes will be locked due to the spring pressure. The brakes should be able to safely decelerate the maximum load and bring it to a standstill within the specified time. The brakes should be able to operate efficiently under any conditions, and their performance will not be reduced due to vibration or wear.

[0025] In this embodiment, a reel for automatically retracting and releasing the cable 27 is also installed on the disc steel frame 11. The cable 27 is electrically connected to the display screen body 3, and the reel can move synchronously with the winding roller 24, so that the retraction and release of the cable 27 and the retraction and release of the wire rope 26 are kept in a synchronous state. The disc steel frame 11 is also equipped with a main power box for powering the rotating adjustment mechanism 1, the lifting adjustment mechanism 2 and the display screen body 3, and a sub-power box for powering the rotating adjustment mechanism 1 and the lifting adjustment mechanism 2 separately is also installed. The circuit of the display screen body 3 and the circuit of the rotating adjustment mechanism 1 and the lifting adjustment mechanism 2 are connected in parallel; Among them, both the rotation adjustment mechanism 1 and the lifting adjustment mechanism 2 can be remotely controlled through signals.

[0026] It should be noted that the winding roller is used to wind the cable 27 for supplying power to the display screen body 3, and the winding roller can rotate synchronously with the winding roller 24, so that the speed of retracting and releasing the steel wire rope 26 can be consistent with the speed of retracting and releasing the cable 27, so when the display screen body 3 is lifted and moved, the cable 27 for power supply will not be damaged; It should also be noted that: the electrical structure of the device is specifically described below: (1) Wiring of electrical cabinets (boxes): Terminal boards or connectors may be used for external wiring. Terminal boards or connectors shall be positioned and permanently marked according to the factory drawings. Cables or wires used for internal wiring shall meet the requirements of mechanical strength, rated current, and dynamic thermal stability. The layout and wiring of electrical components or devices in the cabinet shall be easy to disassemble, replace, and repair. (2) Cable (Cable 27) Connection: The cable length should be appropriate, and the remaining cable should be wound on the take-up roller or fixed inside the equipment; the cores of multi-core or shielded cables used for power or control circuits should be easily identifiable by number. Color codes are only allowed for cables with less than 25 cores, and cable cores should not be identified by the cable laying form or sequence; the numbers at both ends of each power line and control cable should be the same, and permanent marks with unique numbers should be stamped. The cable labels should be shown on the wiring diagram; the cable reel should be able to accommodate a sufficient length of cable to meet the requirements of the total travel of the equipment, including the travel required for maintenance; the wire and cable should be flame-retardant and fire-resistant copper-core cables. Laid in the cable tray, the tray should be covered and fire-proof treated. The type, voltage, current-carrying capacity, cross-section, number of cores, outer sheath, etc. of the power cable and control cable should meet the requirements of its circuit type, transmission type, use environment, and laying method. The control and power cables for moving parts can use flexible cables, and the selection of flexible cables should consider temperature resistance, abrasion resistance, and meet the necessary fire-proof requirements.

[0027] In this embodiment, the display screen body 3 includes a box body, an LED module installed on the side of the box body, and an orbital structure for positioning, and the cable 27 is passed through the inside of the box body to supply electrical energy to the LED module.

[0028] It should be noted that for the display screen body 3, there are a total of 11 columns of double-sided display screens, each column has 3 rows of double-sided display screens, and the size of each individually moving LED screen is: 1443*960*150mm; indoor pitch P1.8; an anti-drop device is installed behind each module; 33 double-sided screens can rotate as a whole; each column of double-sided screens can be independently lifted up and down, and a 50mm gap is reserved between the left and right columns; the distance between the upper and lower screen bodies in each column is ≤30mm; the single-sided resolution of a single screen is: 533*800; As Figure 6 shown in the figure, at point a is the wire rope guide, at the lifting matrix screen point is the cable guide, at point c is the cable fixer, at point d is the wire rope fixer and the box body guide (the guide rail structure of the box body), and at point e is the fixed end of the wire rope.

[0029] The above are only embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is similarly included in the patent protection scope of the present invention.

Claims

1. A lifting matrix screen, comprising a rotation adjustment mechanism (1), characterized in that: It also comprises a plurality of lifting adjustment mechanisms (2) mounted on the rotation adjustment mechanism (1), wherein a plurality of display screen bodies (3) distributed in a row are mounted on any of the lifting adjustment mechanisms (2) in a suspended manner; The rotation adjustment mechanism (1) comprises a group of annular disc steel frames (11), wherein the disc steel frames (11) are arranged horizontally and can perform circular rotation in the horizontal direction; A plurality of the lifting and adjusting mechanisms (2) are distributed in a ring shape and are equidistantly arranged on a circular steel frame (11). The rotation of the circular steel frame (11) is used to drive the lifting and adjusting mechanisms (2) to perform angular displacement in a horizontal direction. The lifting and adjusting mechanisms (2) include a winding roller (24) for retracting and releasing a steel wire rope (26). The steel wire rope (26) is fixed to the display screen body (3) via a clamp and is used to drive the display screen body (3) to perform lifting and moving in a vertical direction.

2. The lifting matrix screen according to claim 1, characterized in that: A group of brackets are arranged concentrically outside the circular steel frame (11) and have a diameter greater than the diameter of the circular steel frame (11); a plurality of rollers are mounted on the brackets and are used to support the circular steel frame (11); A first motor for driving the disc steel frame (11) to rotate is mounted on the bracket, and a first reducer is fixed to the output end of the first motor via a coupling.

3. The lifting matrix screen according to claim 2, characterized in that: The area close to the outer annular surface of the circular steel frame (11) is a load-bearing portion (12), while the area close to the inner annular surface forms a horseway (13). A mounting frame (14) is fixed on the load-bearing portion (12), a crossbeam (15) is fixed on the mounting frame (14), and a plurality of suspension rods (16) are flange-connected to the lower end of the crossbeam (15). The inner annular surface and the outer annular surface of the circular steel frame (11) are provided with a plurality of suspension points (17) for suspension.

4. The lifting matrix screen according to claim 1, characterized in that: The lifting and adjusting mechanism (2) further comprises a frame-type steel frame (21), wherein the frame-type steel frame (21) is flange-connected to the suspension rod (16), and the frame-type steel frame (21) has three layers of vertically distributed installation spaces, wherein a second motor (22) and a second reducer (23) connected to the output end of the second motor (22) are fixed inside any of the installation spaces, wherein the winding roller (24) is rotatably mounted on the frame-type steel frame (21) and is transmission-connected to the second reducer (23), and a plurality of guide pulleys (25) for threading steel wire ropes (26) are also mounted on the frame-type steel frame (21).

5. The lifting matrix screen according to claim 4, characterized in that: The steel wire rope (26) is a soft steel rope with a synthetic fiber core, and a layer of zinc is plated on the outside of the core.

6. The lifting matrix screen according to claim 3, characterized in that: The circular steel frame (11) is also provided with a reel for automatically retracting and releasing a cable (27); the cable (27) is electrically connected to the display screen body (3), and the reel can move synchronously with the winding roller (24), so that the retraction and release of the cable (27) and the retraction and release of the steel wire rope (26) are kept in a synchronous state.

7. The lifting matrix screen according to claim 6, characterized in that: The disk steel frame (11) is also equipped with a main power box for supplying power to the rotating adjustment mechanism (1), the lifting adjustment mechanism (2) and the display screen body (3), and is also equipped with a sub-power box for supplying power to the rotating adjustment mechanism (1) and the lifting adjustment mechanism (2). The circuit of the display screen body (3) and the circuit of the rotating adjustment mechanism (1) and the lifting adjustment mechanism (2) are connected in parallel.

8. The lifting matrix screen according to claim 7, characterized in that: The rotation adjustment mechanism (1) and the lifting adjustment mechanism (2) can both be remotely controlled via signals.

9. The lifting matrix screen according to claim 8, characterized in that: The display screen body (3) comprises a box body, an LED module is mounted on the side of the box body, and a track structure for positioning, and a cable (27) is arranged inside the box body to supply electric energy to the LED module.

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