A small-pitch LED display screen

Abstract

This utility model discloses a small-pitch LED display screen, including a metal bracket with support rods connected to both sides. Positioning holes are formed on the surface of the support rods, and loading / unloading rods are installed inside the positioning holes. One end of the loading / unloading rod is connected to a support frame, and steel wire ropes are connected to both sides of the support frame. LED housings are connected to the ends of the steel wire ropes. A telescopic transmission mechanism is provided between the support frame and the steel wire ropes, and a quick-release mechanism is provided at one end of the loading / unloading rod. This utility model has the following advantages: Through the quick-release mechanism, the end of the loading / unloading rod is inserted into the positioning hole, achieving a fixed installation of the support frame on the support rod. Then, through the telescopic transmission mechanism, the steel wire ropes on the support frame can be wound and extended, allowing the steel wire ropes to securely install the LED housings on one side of the support frame. This enables portable loading and unloading of the LED housings high on the metal bracket, significantly reducing the physical burden on construction personnel and significantly improving the installation or dismantling efficiency of the entire screen.

Description

Technical Field

[0001] This utility model relates to the field of LED display technology, and more specifically, to a small-pitch LED display. Background Technology

[0002] With the continuous development of display technology, small-pitch LED displays have been widely used in high-end indoor display fields due to their advantages such as high brightness, high contrast, wide color gamut, long lifespan, and arbitrary splicing. Generally speaking, small-pitch LED displays refer to LED displays with an LED pixel pitch of P2.5 or less, and are widely used in command and dispatch centers, conference rooms, broadcasting studios, commercial displays, and other places with high requirements for image quality and display effects.

[0003] To minimize splicing gaps and improve overall display consistency and visual effects, existing small-pitch LED screens typically employ high-precision die-cast aluminum cabinets during installation. Multiple LED modules are pre-assembled, aligned, and fixed within the cabinet frame in the factory to form the small-pitch LED cabinet. These cabinets are then mounted on pre-set metal supports, precisely spliced ​​to form a complete large display screen. However, in actual installation and maintenance, the small-pitch LED cabinet integrates multiple LED modules, driver circuits, power systems, and metal structural components. While the overall structure is compact, it is quite heavy, with individual cabinets weighing tens of kilograms or even more. When installing the cabinets to higher positions on the metal supports, workers must hold the cabinets for extended periods for positioning and screw fixing, resulting in extremely labor-intensive operations and low installation efficiency. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes a small-pitch LED display screen to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A small-pitch LED display screen includes a metal bracket with support rods connected to both sides. The support rods have positioning holes on their surfaces and loading / unloading rods installed inside the positioning holes. One end of the loading / unloading rod is connected to a support frame, and steel wire ropes are connected to both sides of the support frame. The ends of the steel wire ropes are connected to LED housings. A telescopic transmission mechanism is provided between the support frame and the steel wire ropes, and a quick loading / unloading mechanism is provided at one end of the loading / unloading rod.

[0007] Furthermore, in order to realize the winding and telescopic movement of the wire rope on the support frame, the telescopic transmission mechanism includes support blocks connected to both sides of the support frame surface, a drive shaft rotatably connected to one side of the support block, and winding rollers installed on both sides of the drive shaft, with one end of the wire rope connected to the winding roller.

[0008] Furthermore, in order to drive the take-up roller to rotate and to have a self-locking effect after rotation adjustment, a driven worm gear is installed on one side of the drive shaft surface, a positioning block is connected to one side of the support frame surface, and a drive worm is rotatably connected to one side of the positioning block. The drive worm meshes with the driven worm gear.

[0009] Furthermore, in order to fix the support frame on the metal bracket, the quick loading and unloading mechanism includes a loading and unloading cover connected to the end of the loading and unloading rod. The surface of the loading and unloading cover has a contraction slit, and one end of the loading and unloading cover is connected to a limit cover, which cooperates with the positioning hole.

[0010] Furthermore, in order to cushion the squeezing contact during the installation of the LED cabinet, cushioning pads are installed on both sides of the surface of the support frame.

[0011] Furthermore, to improve the stability of the LED cabinet after installation, positioning pins are connected to both sides of the LED cabinet surface, and a limit hole is opened on one side of the support block surface.

[0012] Furthermore, to facilitate the turning of the transmission worm, a turning head is connected to one end of the transmission worm.

[0013] Furthermore, to facilitate the lifting and handling of the LED cabinet, a lifting ring is attached to one side surface of the LED cabinet.

[0014] The beneficial effects of this utility model are as follows: By using a quick loading and unloading mechanism, the end of the loading and unloading rod is inserted into the positioning hole, thus fixing the support frame on the support rod. Then, through a telescopic transmission mechanism, the steel wire rope on the support frame can be wound and extended, allowing the steel wire rope to drive the LED cabinet to be stably installed on one side of the support frame. This achieves a suspended installation of the LED cabinet. During the installation or dismantling of the LED cabinet at a high position on the metal bracket, there is no need for manual lifting of the heavy LED cabinet for a long time. The LED cabinet can be smoothly lifted to the predetermined position by controlling the extension and retraction of the steel wire rope through the telescopic transmission mechanism, which greatly reduces the physical burden on construction personnel and improves the installation or dismantling efficiency of the entire screen. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the surface structure of a small-pitch LED display screen according to an embodiment of the present utility model;

[0017] Figure 2 This is a rear view of a small-pitch LED display screen according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the surface structure of a support rod in a small-pitch LED display screen according to an embodiment of the present utility model;

[0019] Figure 4 This is an internal cross-sectional view of a limiting cover in a small-pitch LED display screen according to an embodiment of the present utility model;

[0020] Figure 5 This is an enlarged diagram of point A in Figure 4;

[0021] Figure 6 This is a rear view of a small-pitch LED display screen when the support frame and LED cabinet are separated, according to an embodiment of the present utility model;

[0022] Figure 7 This is a side view of a small-pitch LED display screen with a detached support frame and LED cabinet according to an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Metal bracket; 2. Support rod; 3. Positioning hole; 4. Loading / unloading rod; 5. Bearing frame; 6. Steel wire rope; 7. LED cabinet; 8. Telescopic transmission mechanism; 801. Support block; 802. Drive shaft; 803. Take-up roller; 804. Driven worm gear; 805. Positioning block; 806. Transmission worm; 9. Quick loading / unloading mechanism; 901. Loading / unloading cover; 902. Contraction joint; 903. Limiting cover; 10. Buffer pad; 11. Positioning pin; 12. Limiting hole; 13. Tightening head; 14. Lifting ring. Detailed Implementation

[0025] 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.

[0026] According to an embodiment of the present invention, a small-pitch LED display screen is provided.

[0027] Example 1: As Figures 1-4As shown, a small-pitch LED display screen according to an embodiment of the present invention includes a metal bracket 1. Multiple support rods 2 are connected to both sides of the metal bracket 1. Each support rod 2 has multiple pairs of positioning holes 3 on its surface. Loading / unloading rods 4 are installed inside the positioning holes 3. A carrier frame 5 is connected to one end of each pair of loading / unloading rods 4. A pair of steel wire ropes 6 are connected to both sides of the carrier frame 5. An LED housing 7 is connected to the end of each steel wire rope 6. The LED housing 7 is composed of two pairs of small-pitch LED modules spliced ​​together and integrates a drive circuit and a power system for power and data connection of the LED housing 7. A telescopic transmission mechanism 8 is provided between the carrier frame 5 and the steel wire ropes 6 to drive the steel wire ropes 6 to extend and retract, thereby changing the distance between the carrier frame 5 and the LED housing 7. A quick loading / unloading mechanism 9 is provided at one end of each loading / unloading rod 4 to fix the carrier frame 5 onto the support rods 2 inside the metal bracket 1.

[0028] like Figures 1-7As shown, the telescopic transmission mechanism 8 includes a pair of support blocks 801 connected to both sides of the surface of the support frame 5. A transmission shaft 802 is rotatably connected to one side of the support block 801. A pair of take-up rollers 803 are installed on both sides of the transmission shaft 802. One end of each of the two steel wire ropes 6 on the back of the LED housing 7 is connected to the two take-up rollers 803. A driven worm gear 804 is installed on one side of the surface of the transmission shaft 802. A positioning block 805 is connected to one side of the surface of the support frame 5. A transmission worm 806 is rotatably connected to one side of the positioning block 805. The transmission worm 806 meshes with the driven worm gear 804. By turning the transmission worm gear 806, the transmission worm wheel drives the transmission shaft 802 and the winding roller 803 to rotate, thereby realizing the winding and unwinding of the wire rope 6 on the winding roller 803, and freely changing the distance between the support frame 5 and the LED box 7; the quick loading and unloading mechanism 9 includes a flat-topped conical metal loading and unloading cover 901 connected to the end of the loading and unloading rod 4, and the surface of the loading and unloading cover 901 has two pairs of contraction slits 902. One end of the loading and unloading cover 901 is connected to a limit cover 903, which cooperates with the positioning hole 3, so that the limit cover 903 at the end of the loading and unloading rod 4 is inserted into the surface of the support rod 2. The positioning hole 3 is pressed, causing the positioning hole 3 to squeeze the loading and unloading cover 901. At this time, the loading and unloading cover 901 will shrink along the surface contraction seam 902 and enter the positioning hole 3. Continuous pressing requires the limiting cover 903 and the loading and unloading cover 901 to pass through the positioning hole 3. At this time, the loading and unloading cover 901 is no longer restricted by the compression and will reset by its own elasticity, limiting the installation of the loading and unloading rod 4, thereby fixing the support frame 5 to one side of the support rod 2; buffer pads 10 are installed on both sides of the surface of the support frame 5 to buffer the compression contact during the installation of the LED cabinet 7; LED cabinet Positioning pins 11 are connected to both sides of the surface of LED box 7. Limiting holes 12 are opened on one side of the surface of the two support blocks 801. The limiting holes 12 cooperate with the positioning pins 11. When the wire rope 6 retracts and the LED box 7 is tightened on one side of the support frame 5, the positioning pins 11 can be installed in the limiting holes 12 to increase the stability of the LED box 7 after installation. One end of the transmission worm gear 806 is connected to a turning head 13 for easy turning and rotating of the transmission worm gear 806. A lifting ring 14 is connected to one side surface of the LED box 7 for easy lifting and handling of the LED box 7.

[0029] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0030] With the help of the above-mentioned technical solution of this utility model, in actual use, when installing the LED cabinet 7, first align the end of the loading and unloading rod 4 with the positioning holes 3 on the support rods 2 on both sides of the metal bracket 1, and apply pressure to push the loading and unloading rod 4 in. At this time, the limiting cover 903 passes through the positioning hole 3. The flat-topped conical loading and unloading cover 901 at the end of the loading and unloading rod 4 is squeezed by the hole wall during the process of passing through the positioning hole 3. The two pairs of contraction seams 902 on its surface contract inward under the pressure, making the diameter of the loading and unloading cover 901 smaller, and smoothly passing through the positioning hole 3. After the loading and unloading cover 901 has completely passed through the positioning hole 3, the loading and unloading cover 901 returns to its original shape due to the elasticity of its own metal material. After resetting, it forms a limiting structure to prevent the loading and unloading rod 4 from retracting, so as to realize the rapid and stable installation of the support frame 5 on the metal bracket 1. After the support frame 5 is installed in place, the steel wire rope 6 is in a slack state, and the LED cabinet 7 is in a lower position. Subsequently, by manually rotating the turning head 13 at one end of the transmission worm 806, the transmission worm 806 is driven to rotate. The transmission worm 806 meshes with the driven worm wheel 804, thereby driving the transmission shaft 802 to rotate. The winding rollers 803 at both ends of the transmission shaft 802 rotate synchronously, gradually winding and tightening the steel wire rope 6. As the steel wire rope 6 is wound up, the LED cabinet 7 is smoothly lifted upwards and brought close to the support frame 5. When the LED cabinet 7 is completely attached to one side of the support frame 5, the positioning pins 11 on both sides of the back of the cabinet are precisely aligned with the limiting holes 12 on the surface of the support block 801 and inserted, achieving lateral positioning and enhancing the structural stability after installation. During maintenance or disassembly, the transmission worm 806 is rotated in the opposite direction to release the steel wire rope 6 from the winding rollers 803, allowing individual LED cabinets 7 to be disassembled.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 small-pitch LED display screen, characterized in that, It includes a metal bracket (1), with support rods (2) connected to both sides of the metal bracket (1), positioning holes (3) on the surface of the support rods (2), loading and unloading rods (4) installed inside the positioning holes (3), a bearing frame (5) connected to one end of the loading and unloading rods (4), steel wire ropes (6) connected to both sides of the bearing frame (5), an LED box (7) connected to the end of the steel wire ropes (6), a telescopic transmission mechanism (8) between the bearing frame (5) and the steel wire ropes (6), and a quick loading and unloading mechanism (9) at one end of the loading and unloading rods (4).

2. A small-pitch LED display screen according to claim 1, characterized in that, The telescopic transmission mechanism (8) includes a support block (801) connected to both sides of the surface of the support frame (5), a drive shaft (802) is rotatably connected to one side of the support block (801), and a winding roller (803) is installed on both sides of the drive shaft (802). One end of the wire rope (6) is connected to the winding roller (803).

3. A small-pitch LED display screen according to claim 2, characterized in that, A driven worm gear (804) is mounted on one side of the surface of the drive shaft (802), and a positioning block (805) is connected to one side of the surface of the support frame (5). A transmission worm (806) is rotatably connected to one side of the positioning block (805), and the transmission worm (806) meshes with the driven worm gear (804).

4. A small-pitch LED display screen according to claim 1, characterized in that, The quick loading and unloading mechanism (9) includes a loading and unloading cover (901) connected to the end of the loading and unloading rod (4). The surface of the loading and unloading cover (901) has a shrinkage slit (902). One end of the loading and unloading cover (901) is connected to a limit cover (903), which cooperates with the positioning hole (3).

5. A small-pitch LED display screen according to claim 1, characterized in that, The support frame (5) has cushioning pads (10) installed on both sides of its surface.

6. A small-pitch LED display screen according to claim 2, characterized in that, The LED cabinet (7) has positioning pins (11) on both sides of its surface, and a limit hole (12) is opened on one side of the surface of the support block (801).

7. A small-pitch LED display screen according to claim 3, characterized in that, One end of the transmission worm (806) is connected to a turning head (13).

8. A small-pitch LED display screen according to claim 1, characterized in that, A lifting ring (14) is attached to one side surface of the LED cabinet (7).

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