Safe anti-toppling type 3D holographic LED display screen and method

Abstract

The invention discloses a safe anti-toppling type 3D holographic LED display screen and a method, and relates to the technical field of 3D holographic LED display screens, a base serves as a mounting foundation and is placed on a horizontal platform, and a balancing weight is arranged at the end, away from an outer frame, of the base, so that the whole device is more stable and is not prone to toppling, and the service life of the device is prolonged. The rotating shaft, the driving shaft, the outer frame, the 3D holographic display module, the driving motor, the supporting module and the rotating module are installed step by step, the driving motor and the rotating module are started at the same time, so that the angle of the outer frame is changed, and the requirement for different display angles of the 3D holographic display module is met; the gravity center of the display screen is stably changed, so that the outer frame rotates more stably, and the display screen is prevented from toppling due to the fact that the gravity center changes too fast during rotation.

Description

Technical Field

[0001] The invention relates to the technical field of 3D holographic LED display screens, in particular to a safe anti-dumping 3D holographic LED display screen and a method thereof. Background Art

[0002] With the rapid development of science and technology, 3D holographic technology has been applied in various fields. Among them, 3D holographic LED display screens are important display devices, and their stability and safety issues are becoming increasingly prominent. However, in outdoor advertising, large-scale exhibitions, commercial performances and other occasions, 3D holographic LED display screens often need to withstand various complex environmental conditions and human factors, such as wind, collision, etc. These influences may cause the 3D holographic LED display screen to topple over. When adjusting the display angle of the 3D holographic LED display screen, the 3D holographic LED display screen may also topple over due to the change of the center of gravity too quickly, causing the 3D holographic LED display screen to be damaged, thereby causing economic losses and safety hazards. Therefore, we need a safe anti-topple 3D holographic LED display screen and method. Summary of the invention

[0003] The purpose of the present invention is to provide a safe anti-dumping 3D holographic LED display screen and method to solve the problems raised in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The LED display screen includes a base, a rotating shaft, a driving shaft, an outer frame, a 3D holographic display module, a driving motor, a counterweight, a supporting module and a rotating module. A connecting plate is respectively arranged at both ends of the base. One end of the rotating shaft is rotatably connected to a connecting plate, and the other end of the rotating shaft is rotatably connected to one end of the outer frame. One end of the driving shaft passes through another connecting plate and is fixedly connected to the output end of the driving motor. The driving shaft is rotatably connected to another connecting plate, and the other end of the driving shaft is rotatably connected to the other end of the outer frame. The rotating axis of the rotating shaft and the driving shaft rotatably connected to the two connecting plates is weighted. The driving motor is fixedly connected to the connecting plate, the 3D holographic display module is embedded in the outer frame, the 3D holographic display module is fixedly connected to the outer frame, one end of the supporting module is fixedly connected to the back end surface of the outer frame, the other end of the supporting module is fixedly connected to the counterweight block, the counterweight block is fixedly connected to the base, the counterweight block is arranged on the end of the base away from the outer frame, the rotating module is fixedly connected to the back end surface of the outer frame, the rotating module passes through the supporting module, the two ends of the rotating module are respectively rotatably connected to the two connecting plates, and the 3D holographic display module includes multiple LED display modules.

[0006] The base is placed on a horizontal platform as an installation basis, and the counterweight is set on the end of the base away from the outer frame, so that the overall device is more stable and difficult to tip over. The rotating shaft, driving shaft, outer frame, 3D holographic display module, driving motor, support module and rotating module are gradually installed. The driving motor and the rotating module are started at the same time, so that the angle of the outer frame changes to meet the requirements of different display angles of the 3D holographic display module. When the 3D holographic display module adjusts its angle, the support module makes the entire process of adjusting the angle smoother, preventing the 3D holographic display module from being adjusted too quickly and causing the entire device to become unstable and tip over.

[0007] Furthermore, the support module includes a support frame, a spring and a pressure block, one end of the support frame is fixedly connected to the counterweight block, and grooves are provided at the upper and lower ends of the other end of the support frame. One ends of the two pressure blocks are respectively inserted into the grooves at the upper and lower ends of the support frame, the two pressure blocks are slidingly connected to the support frame, and the other ends of the two pressure blocks are fixedly connected to the back end surface of the outer frame. The spring is arranged in the grooves at the upper and lower ends of the support frame, one end of the spring is fixedly connected to the pressure block, and the other end of the spring is fixedly connected to the support frame.

[0008] When the angle of the outer frame changes and it tilts forward, the lower end part of the outer frame presses the pressure block at the lower end toward the support frame. At this time, the spring in the lower end of the support frame is compressed, and the upper end part of the outer frame draws the pressure block at the upper end outward from the inside of the support frame. At this time, the spring in the upper end of the support frame is stretched, and the springs at both ends generate a force to prevent the outer frame from tilting forward, so that the outer frame rotates more smoothly; when the angle of the outer frame changes and it tilts backward, the lower end part of the outer frame draws the pressure block at the lower end outward from the inside of the support frame. At this time, the spring in the lower end of the support frame is stretched, and the upper end part of the outer frame presses the pressure block at the upper end toward the support frame. At this time, the spring in the upper end of the support frame is compressed, and the springs at both ends generate a force to prevent the outer frame from tilting backward, so that the outer frame rotates more smoothly, preventing the display screen from tipping over due to too fast rotation.

[0009] Furthermore, an axially symmetrical plane of the support frame, the pressing block and the outer frame coincides with each other.

[0010] The support frame, the pressing block and an axial symmetry plane of the outer frame coincide with each other, and the support center of gravity of the support frame, the spring and the pressing block for the outer frame falls on the axial symmetry plane, so that the support module supports the outer frame more stably.

[0011] Furthermore, the grooves at the upper and lower ends of the support frame are equal circular segments on the same circular ring, and the central axis of the circular ring where the grooves at the upper and lower ends of the support frame are located coincides with the rotation axis of the outer frame.

[0012] The central axis of the circular ring where the grooves at the upper and lower ends of the support frame are located coincides with the rotation axis of the outer frame, preventing the outer frame from pulling and pressing the pressure blocks at the upper and lower ends during rotation. The pressure blocks at the upper and lower ends can slide smoothly in the grooves and are difficult to get stuck.

[0013] Furthermore, a plurality of springs are arranged in the grooves at the upper and lower ends of the support frame.

[0014] When only one spring is provided in the grooves at the upper and lower ends of the support frame, it is impossible to provide resistance to the rotation of the outer frame. Multiple springs are provided to provide more resistance to the rotation of the outer frame, so that the center of gravity of the display screen can change smoothly when the display screen rotates, making the outer frame rotate more smoothly and preventing the display screen from tipping over due to too rapid change of the center of gravity during rotation.

[0015] Furthermore, the rotating module includes a rotating motor, a rotating rod and a gear seat, one end of the rotating rod is rotatably connected to a connecting plate, the other end of the rotating rod passes through another connecting plate and is fixedly connected to the output end of the rotating motor, the rotating rod is rotatably connected to the other connecting plate, both ends of the gear seat are fixedly connected to the back end surface of the outer frame, a rack is provided on the rotating rod, a rack is provided on the inner wall surface of the gear seat, and the rotating rod and the inner wall surface of the gear seat are meshed.

[0016] The driving motor and the rotating motor have the same rotation direction. When the rotating motor is started, the rotating rod starts to rotate, driving the gear seat to rotate. The gear seat pushes the outer frame to change the angle of the outer frame, thereby achieving the purpose of adjusting the display angle of the 3D holographic display module. At the same time, the rotating motor drives the rotating rod to drive the gear seat to rotate and the driving motor to assist each other, making the rotation of the outer frame easier and smoother.

[0017] Furthermore, two tooth seats are provided, and the two tooth seats are located on both sides of the supporting module.

[0018] Two gear seats are provided. When the rotating rod rotates, the gear seats on both sides are driven to rotate around the axis where the center of the circle is located, and at the same time, the two sides of the outer frame are pushed and pulled, so that the rotation of the outer frame is smoother to prevent jamming.

[0019] Furthermore, the two gear seats are circular ring segments, and the axes where the centers of the two gear seats are located coincide with the rotation axis of the outer frame.

[0020] The axes where the centers of the two gear seats are located coincide with the rotation axis of the outer frame, ensuring that when the gear seat rotates, the rack on the rotating rod is always engaged with the rack on the inner wall surface of the gear seat, and the rotating rod can always drive the gear seat to rotate when it rotates.

[0021] 9. A safe anti-dumping 3D holographic LED display method, characterized in that: the display method uses the safe anti-dumping 3D holographic LED display screen of claim 8, and the method has the following steps:

[0022] Step 1: Place the base on a horizontal platform, then install the rotating shaft, driving shaft, outer frame, driving motor, counterweight, support module and rotating module, and splice and install multiple LED display modules in the outer frame to form a 3D holographic display module;

[0023] Step 2: Start the driving motor and the rotating motor, the driving shaft and the rotating rod rotate, and adjust the 3D holographic display module to the required display angle. After power is turned on, multiple LED display modules display their own contents to form a complete picture;

[0024] Step 3: When adjusting the display angle of the 3D holographic display module, the spring is stretched and compressed, the pressing block at one end of the support module presses against one end of the outer frame, and the pressing block (83) at the other end pulls the other end of the outer frame;

[0025] Step 4: When the center of gravity of the display screen is shifted due to external factors, one end of the support frame abuts against the counterweight block, and the pressure block abuts against the outer frame.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention adds a counterweight block to the end of the base away from the outer frame, so that the device as a whole is more stable and difficult to tip over;

[0028] 2. The present invention adds a rotating module on the back of the outer frame, and the rotating module includes a rotating motor, a rotating rod and a gear seat. When the driving motor is started, the rotating rod rotates, and the gear seat is driven to rotate around the axis where the center of its circle is located through the rack meshing with the gear seat, so as to push the outer frame to rotate, thereby achieving the purpose of adjusting the angle of the 3D holographic display module;

[0029] 3. The present invention adds a supporting module between the two gear seats, and the supporting module includes a supporting frame, a spring and a pressure block. When the outer frame changes its angle and tilts forward, the lower end part of the outer frame presses the pressure block at the lower end toward the supporting frame. At this time, the spring in the lower end of the supporting frame is compressed, and the upper end part of the outer frame draws the pressure block at the upper end outward from the supporting frame. At this time, the spring in the upper end of the supporting frame is stretched, and the springs at the upper and lower ends both generate a force to prevent the outer frame from tilting forward, so that the outer frame can rotate more smoothly; when the outer frame changes its angle and tilts backward, the lower end part of the outer frame draws the pressure block at the lower end outward from the supporting frame. At this time, the spring in the lower end of the supporting frame is stretched, and the upper end part of the outer frame presses the pressure block at the upper end toward the supporting frame. At this time, the spring in the upper end of the supporting frame is compressed, and the springs at the upper and lower ends both generate a force to prevent the outer frame from tilting backward, so that the center of gravity of the display screen changes smoothly when it rotates, so that the outer frame rotates more smoothly, and the center of gravity changes too quickly during rotation, causing the display screen to tip over. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall front structure of a safe anti-dumping 3D holographic LED display screen and method of the present invention;

[0031] Figure 2 This is a schematic diagram of the overall structure of the back side of a safe anti-dumping 3D holographic LED display screen and method of the present invention;

[0032] Figure 3 This is a structural rear view of a safe anti-dumping 3D holographic LED display screen and method of the present invention;

[0033] Figure 4 A top view of the structure of a safe and anti-dumping 3D holographic LED display screen and method of the present invention;

[0034] Figure 5 The present invention is a schematic cross-sectional structure diagram of a safe anti-dumping 3D holographic LED display screen and method.

[0035] In the figure: 1. base; 2. rotating shaft; 3. driving shaft; 4. outer frame; 5. 3D holographic display module; 6. driving motor; 7. counterweight; 8. supporting module; 9. rotating module; 11. connecting plate; 51. LED display module; 81. supporting frame; 82. spring; 83. pressing block; 91. rotating motor; 92. rotating rod; 93. gear seat. DETAILED DESCRIPTION

[0036] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0037] Example: Figure 1 - Figure 5As shown, the present invention provides a safe and anti-dumping 3D holographic LED display screen and method technical solution:

[0038] like Figure 1 and Figure 2 As shown, the LED display screen includes a base 1, a rotating shaft 2, a driving shaft 3, an outer frame 4, a 3D holographic display module 5, a driving motor 6, a counterweight 7, a supporting module 8 and a rotating module 9, wherein a connecting plate 11 is respectively arranged at both ends of the base 1, one end of the rotating shaft 2 is rotatably connected to a connecting plate 11, the other end of the rotating shaft 2 is rotatably connected to one end of the outer frame 4, one end of the driving shaft 3 passes through another connecting plate 11 and is fixedly connected to the output end of the driving motor 6, the driving shaft 3 is rotatably connected to another connecting plate 11, the other end of the driving shaft 3 is rotatably connected to the other end of the outer frame 4, and the rotating shaft 2 and the driving shaft 3 are rotatably connected to the two connecting plates 11. The moving axes coincide, the driving motor 6 is fixedly connected to the connecting plate 11, the 3D holographic display module 5 is embedded in the outer frame 4, the 3D holographic display module 5 is fixedly connected to the outer frame 4, one end of the supporting module 8 is fixedly connected to the back end face of the outer frame 4, the other end of the supporting module 8 is fixedly connected to the counterweight 7, the counterweight 7 is fixedly connected to the base 1, the counterweight 7 is arranged on the end of the base 1 away from the outer frame 4, the rotating module 9 is fixedly connected to the back end face of the outer frame 4, the rotating module 9 passes through the supporting module 8, the two ends of the rotating module 9 are respectively rotatably connected to the two connecting plates 11, and the 3D holographic display module 5 includes multiple LED display modules 51.

[0039] The base 1 is placed on a horizontal platform as an installation basis, and the counterweight 7 is arranged on the end of the base 1 away from the outer frame 4, so that the overall device is more stable and difficult to tip over. The rotating shaft 2, the driving shaft 3, the outer frame 4, the 3D holographic display module 5, the driving motor 6, the supporting module 8 and the rotating module 9 are gradually installed, and the driving motor 6 and the rotating module 9 are started at the same time, so that the angle of the outer frame 4 changes to meet the requirements of different display angles of the 3D holographic display module 5. When the 3D holographic display module 5 adjusts its angle, the supporting module 8 makes the entire process of adjusting the angle smoother, preventing the 3D holographic display module 5 from adjusting its angle too quickly and causing the entire device to become unstable and tip over.

[0040] like Figure 4 and Figure 5As shown, the support module 8 includes a support frame 81, a spring 82 and a pressure block 83. One end of the support frame 81 is fixedly connected to the counterweight block 7, and the upper and lower ends of the other end of the support frame 81 are provided with grooves. One ends of the two pressure blocks 83 are respectively inserted into the grooves at the upper and lower ends of the support frame 81, and the two pressure blocks 83 are slidingly connected to the support frame 81. The other ends of the two pressure blocks 83 are fixedly connected to the back end surface of the outer frame 4. The spring 82 is arranged in the grooves at the upper and lower ends of the support frame 81, one end of the spring 82 is fixedly connected to the pressure block 83, and the other end of the spring 82 is fixedly connected to the support frame 81.

[0041] When the outer frame 4 changes its angle and tilts forward, the lower end part of the outer frame 4 presses the pressure block 83 at the lower end toward the support frame 81. At this time, the spring 82 in the lower end of the support frame 81 is compressed, and the upper end part of the outer frame 4 draws the pressure block 83 at the upper end outward from the support frame 81. At this time, the spring 82 in the upper end of the support frame 81 is stretched, and the springs 82 at the upper and lower ends both generate a force to prevent the outer frame 4 from tilting forward, so that the outer frame 4 rotates more smoothly; when the outer frame 4 changes its angle and tilts backward, the lower end part of the outer frame 4 draws the pressure block 83 at the lower end outward from the support frame 81. At this time, the spring 82 in the lower end of the support frame 81 is stretched, and the upper end part of the outer frame 4 presses the pressure block 83 at the upper end toward the support frame 81. At this time, the spring 82 in the upper end of the support frame 81 is compressed, and the springs 82 at the upper and lower ends both generate a force to prevent the outer frame 4 from tilting backward, so that the outer frame 4 rotates more smoothly and prevents the display screen from tipping over due to excessive rotation.

[0042] like Figure 4 As shown, the support frame 81, the pressing block 83 and an axially symmetrical plane of the outer frame 4 coincide with each other.

[0043] The support frame 81 , the pressing block 83 and an axial symmetric plane of the outer frame 4 coincide with each other, and the support center of gravity of the support frame 81 , the spring 82 and the pressing block 83 for the outer frame 4 falls on the axial symmetric plane, so that the support module 8 supports the outer frame 4 more stably.

[0044] like Figure 5 As shown, the grooves at the upper and lower ends of the support frame 81 are equal circular segments on the same circular ring, and the central axis of the circular ring where the grooves at the upper and lower ends of the support frame 81 are located coincides with the rotation axis of the outer frame 4.

[0045] The central axis of the circular ring where the grooves at the upper and lower ends of the support frame 81 are located coincides with the rotation axis of the outer frame 4, preventing the outer frame 4 from pulling and pressing the pressure blocks 83 at the upper and lower ends during rotation. The pressure blocks 83 at the upper and lower ends can slide smoothly in the grooves and are difficult to get stuck.

[0046] A plurality of springs 82 are disposed in grooves at the upper and lower ends of the support frame 81 .

[0047] When only one spring 82 is provided in the grooves at the upper and lower ends of the support frame 81, it is impossible to provide resistance to the rotation of the outer frame 4. Multiple springs 82 are provided to provide more resistance to the rotation of the outer frame 4, so that the center of gravity of the display screen can change smoothly when the display screen rotates, making the outer frame 4 rotate more smoothly and preventing the display screen from tipping over due to too fast change of the center of gravity during rotation.

[0048] like Figure 3 As shown, the rotating module 9 includes a rotating motor 91, a rotating rod 92 and a gear seat 93, one end of the rotating rod 92 is rotatably connected to a connecting plate 11, the other end of the rotating rod 92 passes through another connecting plate 11 and is fixedly connected to the output end of the rotating motor 91, the rotating rod 92 is rotatably connected to the other connecting plate 11, the two ends of the gear seat 93 are fixedly connected to the back end surface of the outer frame 4, a rack is provided on the rotating rod 92, a rack is provided on the inner wall surface of the gear seat 93, and the rotating rod 92 and the inner wall surface of the gear seat 93 are meshed.

[0049] The driving motor 6 and the rotating motor 91 have the same rotation direction. When the rotating motor 91 is started, the rotating rod 92 starts to rotate, driving the tooth seat 93 to rotate. The tooth seat 93 pushes the outer frame 4 to change the angle of the outer frame 4, thereby achieving the purpose of adjusting the display angle of the 3D holographic display module 5. At the same time, the rotating motor 91 drives the rotating rod 92 to drive the tooth seat 93 to rotate and assist the driving motor 6 to make the rotation of the outer frame 4 easier and smoother.

[0050] like Figure 2 and Figure 4 As shown, two tooth seats 93 are provided, and the two tooth seats 93 are located on both sides of the supporting module 8 .

[0051] Two gear seats 93 are provided. When the rotating rod 92 rotates, the gear seats 93 on both sides are driven to rotate around the axis where the center of the circle is located, and at the same time, the two sides of the outer frame 4 are pushed and pulled, so that the rotation of the outer frame 4 is smoother to prevent jamming.

[0052] like Figure 5 As shown, the two tooth seats 93 are circular ring segments, and the axes where the centers of the two tooth seats 93 are located coincide with the rotation axis of the outer frame 4 .

[0053] The axes where the centers of the two tooth seats 93 are located coincide with the rotation axis of the outer frame 4, ensuring that when the tooth seat 93 rotates, the rack on the rotating rod 92 is always engaged with the rack on the inner wall surface of the tooth seat 93, and the rotating rod 92 can always drive the tooth seat 93 to rotate when it rotates.

[0054] A safe anti-dumping 3D holographic LED display method, the method comprises the following steps:

[0055] Step 1: Place the base 1 on a horizontal platform, then install the rotating shaft 2, the driving shaft 3, the outer frame 4, the driving motor 6, the counterweight 7, the supporting module 8 and the rotating module 9, and splice and install multiple LED display modules 51 in the outer frame 4 to form a 3D holographic display module 5;

[0056] Step 2: Start the driving motor 6 and the rotating motor 91, the driving shaft 3 and the rotating rod 92 rotate, and adjust the 3D holographic display module 5 to the desired display angle. After power is turned on, the multiple LED display modules 51 display their respective contents to form a complete picture;

[0057] Step 3: When adjusting the display angle of the 3D holographic display module 5, the spring 82 is stretched and compressed, the pressing block 83 at one end of the supporting module 8 presses against one end of the outer frame 4, and the pressing block 83 at the other end pulls the other end of the outer frame 4;

[0058] Step 4: When the center of gravity of the display screen is shifted due to external factors, one end of the support frame 81 abuts against the counterweight block 7 , and the pressing block 83 abuts against the outer frame 4 .

[0059] The working principle of the present invention is as follows: the base 1 is used as the installation basis, and the counterweight block 7 is arranged on the end of the base 1 away from the outer frame 4, so that the overall device is more stable and difficult to tip over. The rotating shaft 2, the driving shaft 3, the outer frame 4, the 3D holographic display module 5, the driving motor 6, the supporting module 8 and the rotating module 9 are gradually installed. After the LED display module 51 is powered on, the LED display module 51 displays its own content to form a complete picture. When the display screen is subjected to external forces such as wind and collision, one end of the supporting frame 81 is against the counterweight block 7, and the pressing block 83 is against the outer frame 4. The driving motor 6 and the rotating motor 91 are started at the same time. The driving motor 6 and the rotating motor 91 have the same rotation direction, so that the angle of the outer frame 4 changes to meet the requirements of different display angles of the 3D holographic display module 5. When the angle of the outer frame 4 changes and tilts forward, the outer frame The lower end portion of the outer frame 4 presses the lower pressure block 83 toward the support frame 81. At this time, the spring 82 in the lower end of the support frame 81 is compressed, and the upper end portion of the outer frame 4 draws the upper pressure block 83 from the inside of the support frame 81 to the outside. At this time, the spring 82 in the upper end of the support frame 81 is stretched, and the springs 82 at both ends generate a force to prevent the outer frame 4 from tilting forward, so that the outer frame 4 rotates more smoothly; when the outer frame 4 changes its angle and leans back, the lower end portion of the outer frame 4 draws the lower pressure block 83 from the inside of the support frame 81 to the outside. At this time, the spring 82 in the lower end of the support frame 81 is stretched, and the upper end portion of the outer frame 4 presses the upper pressure block 83 toward the support frame 81. At this time, the spring 82 in the upper end of the support frame 81 is compressed, and the springs 82 at both ends generate a force to prevent the outer frame 4 from tilting back, so that the outer frame 4 rotates more smoothly and prevents the display screen from tipping over due to excessive rotation.

[0060] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safe and anti-dumping 3D holographic LED display, characterized by: The LED display screen comprises a base (1), a rotating shaft (2), a driving shaft (3), an outer frame (4), a 3D holographic display module (5), a driving motor (6), a counterweight (7), a supporting module (8) and a rotating module (9); two ends of the base (1) are respectively provided with a connecting plate (11); one end of the rotating shaft (2) is rotatably connected to a connecting plate (11); the other end of the rotating shaft (2) is rotatably connected to one end of the outer frame (4); one end of the driving shaft (3) passes through another connecting plate (11) and is fixedly connected to the output end of the driving motor (6); the driving shaft (3) is rotatably connected to another connecting plate (11); the other end of the driving shaft (3) is rotatably connected to the other end of the outer frame (4); the rotating shaft (2) and the driving shaft (3) are rotatably connected to the two connecting plates (11). The rotation axes coincide with each other, the driving motor (6) and the connecting plate (11) are fixedly connected, the 3D holographic display module (5) is embedded in the outer frame (4), the 3D holographic display module (5) and the outer frame (4) are fixedly connected, one end of the supporting module (8) is fixedly connected to the back end surface of the outer frame (4), the other end of the supporting module (8) is fixedly connected to the counterweight (7), the counterweight (7) is fixedly connected to the base (1), the counterweight (7) is arranged on the end of the base (1) away from the outer frame (4), the rotating module (9) is fixedly connected to the back end surface of the outer frame (4), the rotating module (9) passes through the supporting module (8), the two ends of the rotating module (9) are respectively rotatably connected to the two connecting plates (11), and the 3D holographic display module (5) comprises a plurality of LED display modules (51).

2. The safe and anti-dumping 3D holographic LED display according to claim 1, characterized in that: The support module (8) comprises a support frame (81), a spring (82) and a pressure block (83); one end of the support frame (81) is fixedly connected to the counterweight block (7); the upper and lower ends of the other end of the support frame (81) are both provided with grooves; one ends of the two pressure blocks (83) are respectively inserted into the grooves at the upper and lower ends of the support frame (81); the two pressure blocks (83) are slidably connected to the support frame (81); the other ends of the two pressure blocks (83) are both fixedly connected to the back end surface of the outer frame (4); the spring (82) is arranged in the grooves at the upper and lower ends of the support frame (81); one end of the spring (82) is fixedly connected to the pressure block (83); and the other end of the spring (82) is fixedly connected to the support frame (81).

3. The safe and anti-dumping 3D holographic LED display according to claim 2, characterized in that: An axial symmetry plane of the support frame (81), the pressing block (83) and the outer frame (4) overlaps.

4. The safe and anti-dumping 3D holographic LED display according to claim 3, characterized in that: The grooves at the upper and lower ends of the support frame (81) are equal circular segments on the same circular ring, and the central axis of the circular ring where the grooves at the upper and lower ends of the support frame (81) are located coincides with the rotation axis of the outer frame (4).

5. The safe and anti-dumping 3D holographic LED display according to claim 4, characterized in that: A plurality of springs (82) are arranged in grooves at the upper and lower ends of the support frame (81).

6. The safe anti-dumping 3D holographic LED display according to claim 5, characterized in that: The rotating module (9) comprises a rotating motor (91), a rotating rod (92) and a gear seat (93); one end of the rotating rod (92) is rotatably connected to a connecting plate (11); the other end of the rotating rod (92) passes through another connecting plate (11) and is fixedly connected to the output end of the rotating motor (91); the rotating rod (92) and the other connecting plate (11) are rotatably connected; the two ends of the gear seat (93) are fixedly connected to the back end surface of the outer frame (4); a rack is provided on the rotating rod (92); a rack is provided on the inner wall surface of the gear seat (93); the rotating rod (92) and the inner wall surface of the gear seat (93) are meshed.

7. The safe and anti-dumping 3D holographic LED display according to claim 6, characterized in that: Two tooth seats (93) are provided, and the two tooth seats (93) are located on both sides of the support module (8).

8. The safe and anti-dumping 3D holographic LED display according to claim 7, characterized in that: The two tooth seats (93) are circular ring segments, and the axes where the centers of the two tooth seats (93) are located coincide with the rotation axis of the outer frame (4).

9. A safe anti-dumping 3D holographic LED display method, characterized in that: The display method uses the safe anti-dumping 3D holographic LED display screen according to claim 8, and the method comprises the following steps: Step 1: placing the base (1) on a horizontal platform, then installing the rotating shaft (2), the driving shaft (3), the outer frame (4), the driving motor (6), the counterweight (7), the supporting module (8) and the rotating module (9), and splicing and installing a plurality of LED display modules (51) in the outer frame (4) to form a 3D holographic display module (5); Step 2: Start the driving motor (6) and the rotating motor (91), so that the driving shaft (3) and the rotating rod (92) rotate, and adjust the 3D holographic display module (5) to a desired display angle. After power is turned on, the plurality of LED display modules (51) display their respective contents to form a complete picture; Step 3: When adjusting the display angle of the 3D holographic display module (5), the spring (82) is stretched and compressed, the pressing block (83) at one end of the support module (8) presses against one end of the outer frame (4), and the pressing block (83) at the other end pulls the other end of the outer frame (4); Step 4: When the center of gravity of the display screen is shifted due to external factors, one end of the support frame (81) abuts against the counterweight block (7), and the pressing block (83) abuts against the outer frame (4).

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