Liftable annular LED large screen

Abstract

The utility model discloses a liftable annular LED large screen, belongs to the technical field of LED large screens, and aims to solve the problems that in the prior art, annular LED large screens are generally and fixedly mounted above a required mounting place at the same time so as to bring better viewing experience to personnel, however, the large screens need to be maintained and processed regularly by maintainers in actual use, and the maintenance time is shortened. Due to the fact that the height of a large screen is designed in a fixed mode, workers need to use lifters or other tools such as scaffolds for splicing to assist in achieving the overhauling purpose, however, all the above-mentioned operation belongs to high-altitude operation, and certain potential safety hazards exist. Comprising an upper fixing frame, an annular outer frame is fixedly arranged below the upper fixing frame, linkage lifting mechanisms are jointly installed in the upper fixing frame and the annular outer frame and below the upper fixing frame and the annular outer frame, each linkage lifting mechanism comprises a lifting assembly, a first lifting steel rope, a second lifting steel rope and multiple sets of lifting rings, and an annular LED large screen body is fixedly arranged at the bottoms of the multiple sets of lifting rings.

Description

Technical Field

[0001] This utility model belongs to the field of LED large screen technology, specifically relating to a liftable circular LED large screen. Background Technology

[0002] Circular LED screens are widely used in public places such as shopping malls, hotels, airports, and train stations. With their huge size and high brightness and high contrast display effects, they attract people's attention and play commercial advertisements, promotional videos, and other content, providing businesses with an efficient advertising method.

[0003] Nowadays, circular LED screens are usually fixedly installed above the installation site to provide a better viewing experience. However, in actual use, the screen requires regular maintenance by maintenance personnel. Since the screen height is fixed, personnel need to use lifts or other tools such as scaffolding to assist in maintenance. However, all of the above are high-altitude operations, which pose certain safety hazards. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a liftable circular LED screen. This addresses the issue that existing circular LED screens are typically fixedly installed above the desired installation location to provide a better viewing experience. However, in actual use, the screen requires regular maintenance by personnel. Since the screen's height is fixed, personnel need to use lifts or other tools, such as scaffolding, to assist in maintenance. However, all of these involve working at height, posing certain safety hazards.

[0006] (2) Technical solution

[0007] To address the aforementioned technical problems, this utility model provides a liftable circular LED screen, comprising an upper fixed frame, with a ring-shaped outer frame fixed below the upper fixed frame. A linkage lifting mechanism is jointly installed inside and below the upper fixed frame and the ring-shaped outer frame. The linkage lifting mechanism includes a lifting component, a first lifting cable, a second lifting cable, and multiple sets of lifting rings. The circular LED screen body is fixed at the bottom of the multiple sets of lifting rings. A stabilizing guide mechanism is provided below the upper fixed frame and along the inner edge of the circular LED screen body. The lifting component is installed inside the upper fixed frame and includes two rotating rods. A linkage component is installed in the middle section and on one side of the two rotating rods. Hangers are fixed at the ends of the first and second lifting cables. Lifting rings are distributed around the top perimeter of the circular LED screen body.

[0008] Furthermore, the lifting assembly includes a transmission rod, which is installed inside the upper fixed frame. An electromagnetic brake motor is installed at one end of the transmission rod, and first bevel gears are fixed on both sides of the middle section of the transmission rod. A second bevel gear meshes with one side of the two first bevel gears, and a rotating rod is fixed in the middle of the two second bevel gears. First fixed sleeves are fixed on both sides of the middle section of the two rotating rods, and a first lifting steel cable is wound around the periphery of the first fixed sleeve.

[0009] Furthermore, the first bevel gear and the second bevel gear are meshed transmission connections.

[0010] Furthermore, the linkage component includes a second fixed sleeve, which is fixed to the middle section of the two rotating rods. A second hanging steel cable is wound around the periphery of the second fixed sleeve. Fixed rods are fixed on both sides of the middle part of the upper fixed frame, and a support guide wheel is installed around one section of the fixed rod.

[0011] Furthermore, the second lifting cable is movably connected to the corresponding support guide wheel.

[0012] Furthermore, the stabilizing guide mechanism includes guide blocks, which are disposed on the inner side of the ring-shaped LED screen body, and guide frames are disposed around the lower perimeter of the upper fixing frame.

[0013] Furthermore, the bottom end of the guide frame is in contact with and fixedly connected to the ground, and the guide frame and the guide block are connected by a movable guide connection.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model's circular LED screen body can be normally suspended inside the ring-shaped frame and not displayed. When display is required, personnel can activate the electromagnetic brake motor to rotate the transmission rod. At this time, the first bevel gears fixed on both sides of the middle section of the transmission rod will synchronously rotate the second bevel gear and its central rotating rod. Thus, the two rotating rods can synchronously rotate the first fixed sleeves and the first suspension cable on both sides. At this moment, the first suspension cable will loosen its connection to the hanger and pull the upper two hanging rings of the circular LED screen body. Similarly, the second fixed sleeve set in the middle section of the rotating rod will also loosen its connection to the second suspension cable. The second suspension cable, due to the position limit of the support guide wheel, can cooperate with the hanger connected to pull the other two hanging rings of the circular LED screen body. The two work together to effectively lower the circular LED screen body. This method can not only adjust to a suitable height for viewers but also facilitate subsequent maintenance and upkeep by maintenance personnel.

[0017] During the lifting and lowering process, the multiple sets of guide blocks on the inner side of the circular LED screen body of this utility model can ensure the stability of its lifting stroke and improve safety by limiting and guiding the corresponding guide frame. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a top-down view of the internal structure of the upper fixed frame;

[0021] Figure 3 This is a schematic diagram of a three-dimensional partial structure;

[0022] Figure 4 for Figure 3 Schematic diagram of the structure at point A in the middle.

[0023] The markings in the attached diagram are as follows: 1. Upper fixed frame; 2. Ring-mounted outer frame; 3. Linkage lifting mechanism; 31. Lifting assembly; 311. Transmission rod; 312. Electromagnetic brake motor; 313. First bevel gear; 314. Second bevel gear; 315. Rotating rod; 316. First fixed sleeve; 317. First lifting cable; 32. Linkage assembly; 321. Second fixed sleeve; 322. Second lifting cable; 323. Fixed rod; 324. Support guide wheel; 33. Hanger; 34. Lifting ring; 4. Circular LED screen body; 5. Stabilizing guide mechanism; 51. Guide block; 52. Guide frame. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This specific embodiment is a liftable circular LED screen, and its structural schematic diagram is shown below. Figures 1 to 4As shown, the system includes an upper fixed frame 1, with a ring-shaped outer frame 2 fixed below it. A linkage lifting mechanism 3 is jointly installed inside and below the upper fixed frame 1 and the ring-shaped outer frame 2. The linkage lifting mechanism 3 includes a lifting component 31, a first lifting cable 317, a second lifting cable 322, and multiple sets of lifting rings 34. A ring-shaped LED screen body 4 is fixed to the bottom of the multiple sets of lifting rings 34. A stabilizing guide mechanism 5 is provided below the upper fixed frame 1 and on the inner edge of the ring-shaped LED screen body 4. The lifting component 31 is installed inside the upper fixed frame 1 and includes a transmission rod 311, which is installed on one side of the upper fixed frame 1. An electromagnetic brake motor 312 is installed at one end of the transmission rod 311. A first bevel gear 313 is fixedly mounted on both sides of the middle section of the rotating rod 315. A second bevel gear 314 meshes with one side of each of the two first bevel gears 313. A rotating rod 315 is fixedly mounted in the middle of each of the two second bevel gears 314. A first fixing sleeve 316 is fixedly mounted on both sides of the middle section of each of the two rotating rods 315. A first lifting cable 317 is wound around the periphery of the first fixing sleeve 316. The first bevel gears 313 and the second bevel gears 314 are meshed and connected. A linkage assembly 32 is installed on the middle section and one side of each of the two rotating rods 315. The linkage assembly 32 includes a second fixing sleeve 321, which is fixedly mounted in the middle section of the two rotating rods 315. A second lifting cable 322 is wound around the periphery of the second fixing sleeve 321. Fixed rods 323 are fixed on both sides of the middle part of the upper fixed frame 1, and a support guide wheel 324 is installed around one section of the fixed rod 323. The second suspension cable 322 is movably connected to the corresponding support guide wheel 324. The ends of the first suspension cable 317 and the second suspension cable 322 are fixed with hangers 33. The top periphery of the ring LED screen body 4 is provided with hanging rings 34. The ring LED screen body 4 can be suspended inside the ring frame 2 and not displayed normally. When it needs to be displayed, the personnel can start the electromagnetic brake motor 312 to rotate the transmission rod 311. At this time, the first bevel gear 313 fixed on both sides of the middle section of the transmission rod 311 will rotate synchronously and drive the second bevel gear 314 and its middle rotating rod 315 to rotate. Thus, the two rotating rods rotate. The rotating rod 315 can simultaneously rotate the first fixed sleeves 316 and the first suspension cable 317 on both sides. At this time, the first suspension cable 317 will loosen and connect to the hanger 33, pulling the upper two hanging rings 34 of the ring LED screen body 4. Similarly, the second fixed sleeve 321 set in the middle of the rotating rod 315 will also loosen the second suspension cable 322. The second suspension cable 322 will be limited by the position of the support guide wheel 324 and can connect to the hanger 33, pulling the other two hanging rings 34 of the ring LED screen body 4. The two work together to effectively lower the ring LED screen body 4. This method can not only adjust to a suitable height for the viewer, but also facilitate the maintenance and upkeep of the ring LED screen body 4 by the maintenance personnel.

[0026] The stabilizing guide mechanism 5 includes guide blocks 51, which are distributed on the inner side of the ring-shaped LED screen body 4. Guide frames 52 are distributed around the lower part of the upper fixed frame 1. The bottom end of the guide frame 52 contacts the ground and is fixedly connected. The guide frame 52 and the guide blocks 51 are connected by a movable guide. During the lifting and lowering process of the ring-shaped LED screen body 4, the multiple sets of guide blocks 51 on its inner side can ensure the stability of its lifting stroke according to the limit guidance of the corresponding guide frame 52, thereby improving safety.

[0027] Working principle: The circular LED screen body 4 is normally suspended inside the ring-shaped outer frame 2 and not displayed. When display is required, personnel can activate the electromagnetic brake motor 312 to rotate the transmission rod 311. At this time, the first bevel gear 313 fixed on both sides of the middle section of the transmission rod 311 will synchronously drive the second bevel gear 314 and its middle rotating rod 315 to rotate. Thus, the two rotating rods 315 can synchronously drive the first fixed sleeves 316 on both sides and the first suspension cable 317 to rotate. At this time, the first suspension cable 317 will loosen its connection with the hanger 33 and pull the upper two hanging rings 34 of the circular LED screen body 4. Similarly, the rotating rod 31... The second fixed sleeve 321 set in the middle section will also loosen the second hoisting steel cable 322. The second hoisting steel cable 322 will be able to pull the other two hanging rings 34 on both sides of the ring LED screen body 4 because of the position limit of the support guide wheel 324. The two work together to effectively lower the ring LED screen body 4. This method can not only adjust to a suitable height for the viewers, but also facilitate the maintenance and upkeep of the ring LED screen body 4. In addition, during the lifting and lowering process, the multiple sets of guide blocks 51 set on the inner side of the ring LED screen body 4 can ensure the stability of its lifting stroke according to the limit guidance of the corresponding guide frame 52, thus improving safety.

[0028] All technical features in this embodiment can be freely combined according to actual needs.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A liftable circular LED screen, comprising an upper fixed frame (1), characterized in that, The upper fixed frame (1) is fixedly provided with a ring-shaped outer frame (2) below it, and a linkage lifting mechanism (3) is jointly installed inside and below the upper fixed frame (1) and the ring-shaped outer frame (2). The linkage lifting mechanism (3) includes a lifting component (31), a first hanging steel cable (317), a second hanging steel cable (322), and multiple sets of hanging rings (34). The bottom of the multiple sets of hanging rings (34) is fixedly provided with a ring-shaped LED screen body (4). The upper fixed frame (1) and the inner edge of the ring-shaped LED screen body (4) are provided with a stabilizing guide mechanism (5). The lifting component (31) is installed inside the upper fixed frame (1). The lifting component (31) includes two rotating rods (315). The middle section and one side of the two rotating rods (315) are provided with a linkage component (32). The ends of the first hanging steel cable (317) and the second hanging steel cable (322) are fixedly provided with a hanger (33). The top periphery of the ring-shaped LED screen body (4) is provided with hanging rings (34).

2. The liftable circular LED screen according to claim 1, characterized in that, The lifting assembly (31) includes a transmission rod (311), which is installed on one side of the inner side of the upper fixed frame (1). An electromagnetic brake motor (312) is installed at one end of the transmission rod (311), and first bevel gears (313) are fixed on both sides of the middle section of the transmission rod (311). A second bevel gear (314) meshes on one side of the two first bevel gears (313), and a rotating rod (315) is fixed in the middle of the two second bevel gears (314). A first fixed sleeve (316) is fixed on both sides of the middle section of the two rotating rods (315), and a first hoisting steel cable (317) is wound around the periphery of the first fixed sleeve (316).

3. The liftable circular LED screen according to claim 2, characterized in that, The first bevel gear (313) and the second bevel gear (314) are meshed transmission connections.

4. The liftable circular LED screen according to claim 1, characterized in that, The linkage component (32) includes a second fixed sleeve (321), which is fixed in the middle section of two rotating rods (315). A second hanging steel cable (322) is wrapped around the periphery of the second fixed sleeve (321). Fixed rods (323) are fixed on both sides of the middle part of the upper fixed frame (1), and a support guide wheel (324) is installed around a section of the fixed rod (323).

5. A liftable circular LED screen according to claim 4, characterized in that, The second lifting cable (322) is movably connected to the corresponding support guide wheel (324).

6. A liftable circular LED screen according to claim 1, characterized in that, The stabilizing guide mechanism (5) includes a guide block (51), and the guide block (51) is disposed on the inner side of the ring-shaped LED screen body (4). The upper fixing frame (1) is provided with guide brackets (52) around its lower perimeter.

7. A liftable circular LED screen according to claim 6, characterized in that, The bottom end of the guide frame (52) is in contact with and fixedly connected to the ground, and the guide frame (52) and the guide block (51) are connected by a movable guide.

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