Louver connecting lock for LED display screen and LED display screen

Abstract

The utility model relates to an LED display screen and a shutter connecting lock for the LED display screen, the connecting lock comprises a shifting limiting piece and a base which are rotatably connected, the shifting limiting piece is provided with a shifting key and a shifting rod and is provided with an L-shaped limiting groove, the base is connected with a springback assembly, the springback assembly comprises a springback key, a spring and a bolt, one end of the bolt is connected to the springback key, and the other end of the bolt is connected to the shifting rod. The L-shaped limiting groove comprises a limiting part A and a limiting part B. In the initial state, the plug pin is located in the limiting part A. When the shifting key is pressed downwards, the shifting rod shifts, the plug pin moves into the limiting part B for locking, when the springback key is pressed downwards, the shifting limiting piece resets, the plug pin is located in the limiting part A for locking, and when the springback key is pressed downwards, the plug pin moves into the limiting part B for locking. The LED display screen is provided with the connecting lock structure, the LED display screen is provided with a blind window assembly, the deflector rod is connected with the blind window assembly, a reset spring is arranged at the end of the blind window assembly, and the blind window assembly achieves one-key type movable locking and resetting under the cooperation of the connecting lock and the reset spring.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, in particular to a shutter connection lock for an LED display screen and an LED display screen. Background Art

[0002] Outdoor displays are typically constructed from multiple LED display modules, particularly those used for large-scale events. To mitigate wind resistance when used outdoors, the displays feature slots to reduce wind resistance and ensure safety. The slots also provide a certain degree of heat dissipation, but the structural design of the slots significantly impacts the display's performance. When using displays with slots indoors, wind resistance is not a concern, but the impact of the slots on the display cannot be eliminated. Therefore, adjustable blinds are typically installed to shield the slots. These blinds effectively adjust the brightness and contrast of the display, ensuring optimal viewing under varying lighting conditions. By adjusting the degree of opening of the blinds, the amount of light entering the display can be controlled, optimizing the display. When used outdoors in calm or breezy weather, the blinds also protect the display, preventing overexposure or glare in strong sunlight, thereby extending its lifespan. They also reduce the intrusion of dust and impurities, keeping the display clean.

[0003] The existing shutter locking structures on display screens require multiple control actions to be implemented, such as pushing a handle to unlock and then manually pushing a sliding connector to move the shutter structure so that the shutter covers the through slot on the display screen. The operation is relatively cumbersome and it is impossible to move and / or reset the shutter with one click. Therefore, there is an urgent need for a locking structure that can lock and reset the shutter with one click and be applied to the LED display screen to make its operation simple, fast and stable. Utility Model Content

[0004] Based on this, in order to overcome the shortcomings of the existing technology, the utility model provides a blinds connection lock and LED display screen for an LED display screen. Through the set connection lock structure, the blinds can be locked and reset with one-touch movement, which is simple and quick to operate and has a stable structural design.

[0005] The utility model solves the technical problem and adopts the following technical solution: a blind connection lock for an LED display screen is provided, comprising a base, a toggle limiter, a rebound assembly and a cover plate; a connecting shaft is provided on the left side of the base, an assembly groove is provided on the right side of the base, a waist hole is provided on the base, the waist hole passes through the base wall and is connected to the assembly groove, a connecting hole is provided on the toggle limiter, the connecting shaft is plugged into and rotated with the connecting hole, the toggle limiter is an inverted L-shaped structure, the downward extension of which is a toggle rod, and the horizontal extension of which is a toggle button, and the toggle limiter is equivalent to a connecting shaft. The axis of the lever is used as the fulcrum, which makes the pressing process of the toggle button more labor-saving. An L-shaped limit groove is provided on the right wall of the toggle limit part. The inner corners of the L-shaped limit groove are set as arc transition chamfer structures. The ends of the L-shaped limit groove are respectively limit part A and limit part B. The rebound assembly includes a rebound button, a spring and a pin. A spring is provided at the bottom of the rebound button, and the bottom of the spring is abutted against the bottom of the assembly groove. A plug-in hole is provided on the wall of the rebound button. The right end of the pin passes through the waist hole and is plugged into the plug-in hole. The left end of the pin is placed in the L-shaped limit groove, and the cover plate is fixedly connected to the left side of the base.

[0006] The latch can move up and down in the waist hole, and the latch is a movable part that can rotate relative to the plug hole, thereby reducing the stress on the latch during the relative movement.

[0007] When the connecting lock is in use, in the initial state, the latch is located at the limit part A. The toggle button is pressed down to rotate the toggle limit part relative to the connecting shaft. At this time, the end of the toggle rod is displaced. In actual use, the end of the toggle rod can be connected to the shutter assembly. In this way, the displacement of the toggle rod can drive the movement of the shutter assembly, thereby realizing the adjustment function of the shutter assembly on the display effect of the LED display screen. In the process of pressing the toggle button, the latch moves in the direction of the limit part B of the L-shaped limit groove under the action of the spring. When the latch moves relatively to the corner of the L-shaped limit groove, the L-shaped limit groove completely releases the limit of the upper end of the latch, and driven by the upward elastic force of the spring, it quickly moves to the limit part B. And it maintains the locked state under the action of the spring force, achieving the one-touch locking purpose, and the operation is simple and quick; when the locked state needs to be released and reset, it only needs to press the rebound button. The rebound button compresses the spring and drives the latch to move downward, causing the latch to move in the direction of limit part A. In the process of the latch moving downward, it squeezes the wall of the L-shaped limit groove, driving the toggle limit piece to rotate and reset. When the latch moves to the corner position of the L-shaped limit groove, the L-shaped limit groove completely releases its restriction in the direction of limit part A. At this time, it only needs to apply an external force on the toggle lever to make it fully reset, that is, to toggle the limit piece to achieve complete reset, causing the latch to reset to the limit part A, achieving the purpose of resetting the blinds with one button.

[0008] Furthermore, a limit block is provided on the left side of the base to limit the shift rod.

[0009] The utility model also provides a kind of LED display screen, including the louver connecting lock of above, frame body, frame body is provided with LED lamp plate, central control module, central control module includes control system and power supply system, LED lamp plate is electrically connected with central control module, frame body is provided with vertical beam, vertical beam is provided with through hole, louver connecting lock is fixed in vertical beam top, vertical beam lower side is connected with louver assembly, vertical beam bottom is provided with sliding slot, louver assembly includes slide bar, louver and return spring, slide bar is fixedly connected with louver, slide bar is placed in sliding slot, return spring one end is abutted in sliding slot inner wall, other end is abutted in slide bar end, slide bar is provided with lever slot, lever is inserted in lever slot in through hole.

[0010] By depressing the button, the lever is moved, the louver assembly is moved, the slide bar end compresses the return spring, the adjustment of LED display screen display effect is realized, and the reset spring provides auxiliary reset force to push the slide bar to displace during the reset process of depressing the reset button.

[0011] Further, a first avoiding hole is formed in the slide bar, and the louver assembly is connected below the vertical beam by a screw passing through the first avoiding hole, the first avoiding hole has a larger diameter than the outer diameter of the screw rod, so as to provide a moving space for the louver assembly, that is, the louver assembly moves within a certain distance range and is not limited by the screw rod.

[0012] Further, a protruding abutting block is arranged in the sliding slot, and the abutting block abuts against the slide bar, so as to reduce the contact area between the slide bar and the sliding slot, and further reduce the friction force suffered by the slide bar during sliding.

[0013] Further, a grid plate is arranged below the louver assembly, the grid plate is provided with a through slot and an abutting piece, the LED lamp plate is connected to the grid plate, a screw hole is formed in the middle of the abutting piece, a second avoiding hole is formed in the louver, the abutting piece is inserted into the second avoiding hole, the second avoiding hole has a larger diameter than the outer diameter of the abutting piece, a connecting column protruding from the sliding slot is arranged in the sliding slot below the vertical beam, the connecting column is inserted into the first avoiding hole formed in the slide bar, the first avoiding hole has a larger inner diameter than the outer diameter of the connecting column, and the grid plate is fixed to the connecting column by a screw passing through the abutting piece.

[0014] Further, limit pieces are arranged on both sides of the grid plate, the two sides of the louver are limited by the limit pieces, and the louver moves below the limit pieces, so that the louver can effectively avoid edge lifting and deformation, and the louver can avoid being stuck during movement.

[0015] The utility model has the advantages of:

[0016] The shutter connection lock provided by the present invention has a toggle limiter connected to the base through rotation, and the movement of the toggle rod is achieved by pressing the toggle button. The movement of the toggle rod can drive the displacement of the part to be moved, such as the shutter assembly, and with the cooperation of the L-shaped limit groove, the latch and the spring, the latch is locked in the limit part B, realizing the one-button locking function of the toggle limiter, that is, the toggle limiter can be locked and kept stationary after moving to a certain distance; when the rebound button is pressed, the toggle limiter can be reset by the cooperation of the latch and the L-shaped limit groove, and with the assistance of an external force applied to the toggle rod to reset it, and the latch is locked in the limit part A, realizing the one-button reset function.

[0017] The LED display screen provided by the present utility model drives the movement of the toggle button by controlling the downward pressing of the toggle button, and the toggle rod drives the movement of the shutter assembly, the sliding rod compresses the reset spring, and the shutter assembly blocks the through groove on the grid plate to adjust the display effect of the LED display screen, etc. During the downward pressing of the toggle button, the pin moves from the limit part A to the limit part B, and the toggle limit part is locked, thereby realizing the one-touch movement locking function of the shutter assembly; when the rebound button is pressed, the pin moves downward, the toggle limit part rotates and resets, and the reset spring pushes the shutter assembly to reset under the action of the restoring elastic force, and the shutter assembly drives the toggle rod to reset. After the toggle limit part is completely reset, the pin is locked in the limit part A, thereby realizing the one-touch reset function of the shutter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the connecting lock structure of the utility model;

[0019] Figure 2 The connection lock explosion of the utility model Figure 1 ;

[0020] Figure 3 The connection lock explosion of the utility model Figure 2 ;

[0021] Figure 4 This is a diagram showing the state of use of the connection lock of the present utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the LED display screen of the present utility model;

[0023] Figure 6 This is an exploded view of the LED display screen of the present utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the shutter assembly in the utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the shutters in the utility model;

[0026] Figure 9This is a schematic diagram of the grid plate structure in the utility model;

[0027] Figure 10 This is a schematic diagram of the connection between the shutter and the grid plate in the utility model;

[0028] Figure 11 Schematic diagram of the sliding rod and frame structure of the utility model;

[0029] Figure 12 for Figure 11 Enlarged view of middle part B;

[0030] Figure 13 for Figure 11 Enlarged view of part C in the middle.

[0031] in:

[0032] 1. Base;

[0033] 11. Connecting shaft; 12. Limit block; 13. Waist hole; 14. Assembly slot;

[0034] 2. Move the limiter;

[0035] 21. Toggle button; 22. Connecting hole; 23. Toggle lever; 24. L-shaped limit slot; 25. Limiting part A; 26. Limiting part B;

[0036] 3. Rebound component;

[0037] 31. Rebound button; 32. Spring; 33. Latch;

[0038] 4. Cover plate;

[0039] 5. Shutter assembly;

[0040] 51. Sliding rod; 511. First avoidance hole; 512. Push rod slot; 52. Venetian blind; 521. Second avoidance hole; 53. Return spring;

[0041] 6. Frame;

[0042] 61, vertical beam; 611, chute; 612, abutment block; 613, through hole;

[0043] 7. Grid plate;

[0044] 71. Through groove; 72. Abutment member; 73. Limiting member. DETAILED DESCRIPTION

[0045] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0046] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0048] like Figures 1 to 3 As shown, the utility model provides a blind connection lock for an LED display screen, comprising a base 1, a toggle limiter 2, a rebound assembly 3 and a cover plate 4. A connecting shaft 11 is provided on the left side of the base 1, and an assembly groove 14 is provided on the right side of the base 1. A waist hole 13 is also provided on the base 1, and the waist hole 13 passes through the base wall and is connected to the assembly groove 14. The toggle limiter 2 is provided with a connecting hole 22, and the connecting shaft 11 is plugged and rotated with the connecting hole 22. The toggle limiter 2 is an inverted L-shaped structure, and its downward extension is a toggle rod 23, and its horizontal extension is a toggle button 21. The toggle limiter 2 is equivalent to a lever with the axis of the connecting shaft 11 as the fulcrum. To make the pressing process of the toggle button 21 more labor-saving, an L-shaped limit groove 24 is provided on the right side wall of the toggle limit member 2. The inner corners of the L-shaped limit groove 24 are all set to a circular arc transition chamfer structure. The ends of the L-shaped limit groove 24 are respectively a limit part A25 and a limit part B26. The rebound assembly 3 includes a rebound button 31, a spring 32 and a pin 33. A spring 32 is provided at the bottom of the rebound button 31, and the bottom of the spring 32 is abutted against the bottom of the assembly groove 14. A plug-in hole is provided on the wall of the rebound button 31. The right end of the pin 33 passes through the waist hole 13 and is plugged into the plug-in hole. The left end of the pin 33 is placed in the L-shaped limit groove 24, and the cover plate 4 is fixedly connected to the left side of the base 1.

[0049] The latch 22 can move up and down in the waist hole 13, and the latch 33 is a movable part that can rotate relative to the insertion hole, thereby reducing the stress on the latch 33 during the relative movement.

[0050] like Figure 4As shown, when the connecting lock is in use, in the initial state, the latch 33 is located at the limit portion A25, and the toggle button 21 is pressed down to rotate the toggle limit member 2 relative to the connecting shaft 11. At this time, the end of the toggle rod 23 is displaced. In actual use, the end of the toggle rod 23 can be connected to the shutter assembly 5. In this way, the displacement of the toggle rod 23 can drive the movement of the shutter assembly 5, thereby realizing the adjustment function of the shutter assembly 5 on the display effect of the LED display screen. In the process of pressing the toggle button 21, the latch 33 moves in the direction of the limit portion B26 of the L-shaped limit groove 24 under the action of the spring 32. When the latch 33 moves relatively to the corner of the L-shaped limit groove 24, the L-shaped limit groove 24 completely releases the limit of the upper end of the latch 33, and is driven by the upward elastic force of the spring 32 to quickly move to the limit portion B26 and remain in the locked state under the elastic force of the spring 32. Figure 4 The state shown by the dotted line in the middle realizes the one-touch locking purpose, and the operation is simple and quick. When the locked state needs to be released and reset, it is only necessary to press the rebound button 31 downward. The rebound button 31 compresses the spring 32 and drives the latch 33 to move downward, so that the latch 33 moves in the direction of the limit portion A25. In the process of the latch 33 moving downward, the wall surface of the L-shaped limit groove 24 is squeezed, and the toggle limit member 2 is driven to rotate and reset. When the latch 33 moves to the corner position of the L-shaped limit groove 24, the L-shaped limit groove 24 completely releases its restriction in the direction of the limit portion A25. At this time, it is only necessary to apply an external force on the toggle lever 23 to make it fully reset, so that the toggle limit member 2 can be fully reset, causing the latch 33 to reset to the limit portion A25. Figure 4 The state shown by the solid line achieves the purpose of resetting the shutter assembly 5 with one click.

[0051] In some embodiments, a limiting block 12 for limiting the position of the shifting rod 23 is further provided on the left side of the base 1 .

[0052] like Figures 5 to 13 As shown, the utility model also provides an LED display screen, including the above-mentioned shutter connection lock and frame 6, the frame 6 is provided with an LED light board and a central control module, the central control module includes a control system and a power supply system, the LED light board is telecommunication-connected to the central control module, a vertical beam 61 is provided on the frame 6, the vertical beam 61 is provided with a through hole 613, the shutter connection lock is fixed above the vertical beam 61, the shutter assembly 5 is connected to the bottom of the vertical beam 61, a slide groove 611 is provided at the bottom of the vertical beam 61, the shutter assembly 5 includes a slide rod 51, a shutter 52 and a reset spring 53, the slide rod 51 is fixedly connected to the shutter 52, the slide rod 51 is placed in the slide groove 611, one end of the reset spring 53 abuts against the inner wall of the slide groove 611, and the other end abuts against the end of the slide rod 51, a lever groove 512 is provided on the slide rod 51, and the lever 23 passes through the through hole 613 and is inserted into the lever groove 512.

[0053] By pressing the toggle button 21, the toggle rod 23 moves, the toggle rod 23 drives the shutter assembly 5 to move, and the end of the slide rod 51 compresses the reset spring 53 to achieve functions such as adjusting the display effect of the LED display screen. When the rebound button 31 is pressed down to reset the toggle limiter 2, the reset spring 53 provides an auxiliary reset elastic force, pushing the slide rod 51 to move, and the slide rod 51 drives the toggle rod 23 to reset.

[0054] In some embodiments, a first avoidance hole 511 is opened on the sliding rod 51, and a screw is used to pass through the first avoidance hole 511 to connect the shutter assembly 5 to the bottom of the vertical beam 61. The aperture of the first avoidance hole 511 is larger than the outer diameter of the screw rod to provide movement space for the shutter assembly 5, that is, the shutter assembly 5 can move within a certain distance range without being restricted by the screw rod.

[0055] In some embodiments, a raised abutment block 612 is provided in the slide groove 611 , and the abutment block 612 abuts against the slide rod 51 to reduce the contact area between the slide rod 51 and the inside of the slide groove 611 , thereby reducing the friction force encountered by the slide rod 51 during the sliding process.

[0056] In some embodiments, a grid plate 7 is provided below the shutter assembly 5, and a through groove 71 and abutment 72 are provided on the grid plate 7. The LED light board is connected to the grid plate 7, and a screw hole is provided in the middle of the abutment 72. A second avoidance hole 521 is provided on the shutter 52, and the abutment 72 is inserted into the second avoidance hole 521. A connecting column protruding from the slide groove 611 is provided in the slide groove 611 below the vertical beam 61, and the connecting column is inserted into the first avoidance hole 511 provided on the slide rod 51. The grid plate 7 is fixed to the connecting column by passing a screw through the abutment 72. Similarly, the aperture of the second avoidance hole 521 is larger than the outer diameter of the abutment 72, and the inner diameter of the first avoidance hole 511 is larger than the outer diameter of the connecting column, so as to provide a moving space for the shutter assembly 5, that is, the shutter assembly 5 can move within a certain distance range without being restricted by the abutment 72 and the connecting column.

[0057] In some embodiments, limit members 73 are further provided on both sides of the grid plate 7. The two side edges of the shutter 52 are limited by the limit members 73. The shutter 52 moves under the limit members 73, which can effectively prevent the shutter 52 from warping and deformation, and prevent the shutter 52 from getting stuck during movement.

[0058] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A blinds connection lock for LED display screen, characterized in that: The invention comprises a base (1), a toggle limiter (2), a rebound assembly (3) and a cover plate (4), wherein a connecting shaft (11) is provided on the left side of the base (1), an assembly groove (14) is provided on the right side of the base (1), a waist hole (13) is provided on the base (1), the waist hole (13) passes through the wall of the base (1) and is connected to the assembly groove (14), the toggle limiter (2) is provided with a connecting hole (22), the connecting shaft (11) and the connecting hole (22) are plugged and rotated together, the toggle limiter (2) is an inverted L-shaped structure, the downward extension of which is a toggle rod (23), the horizontal extension of which is a toggle button (21), and the right side wall of the toggle limiter (2) is provided with an L-shaped limiter. The inner corners of the L-shaped limit groove (24) are all set as arc transition chamfer structures. The ends of the L-shaped limit groove (24) are respectively a limit portion A (25) and a limit portion B (26). The rebound component (3) includes a rebound button (31), a spring (32) and a latch (33). The bottom of the rebound button (31) is provided with a spring (32). The bottom of the spring (32) is abutted against the bottom of the assembly groove (14). The wall of the rebound button (31) is provided with a plug hole. The right end of the latch (33) passes through the waist hole (13) and is plugged into the plug hole. The left end of the latch (33) is placed in the L-shaped limit groove (24). The cover plate (4) is fixedly connected to the left side of the base.

2. A blinds connection lock for LED display screen according to claim 1, characterized in that: A limiting block (12) for limiting the position of the shifting rod (23) is also provided on the left side of the base (1).

3. An LED display screen, comprising the shutter connection lock and the frame (6) according to any one of claims 1 to 2, characterized in that: A vertical beam (61) is provided on the frame (6), and a through hole (613) is provided on the vertical beam (61). A shutter connecting lock is fixed on the top of the vertical beam (61), and a shutter assembly (5) is connected to the bottom of the vertical beam (61). A sliding groove (611) is provided at the bottom of the vertical beam (61). The shutter assembly (5) includes a slide rod (51), a shutter (52) and a return spring (53). The slide rod (51) is fixedly connected to the shutter (52), and the slide rod (51) is placed in the sliding groove (611). One end of the return spring (53) abuts against the inner wall of the sliding groove (611), and the other end abuts against the end of the slide rod (51). A lever groove (512) is provided on the slide rod (51), and the lever (23) passes through the through hole (613) and is inserted into the lever groove (512).

4. The LED display screen according to claim 3, characterized in that: A first avoidance hole (511) is provided on the slide bar (51), and a screw is passed through the first avoidance hole (511) to connect the shutter assembly (5) below the vertical beam (61). The diameter of the first avoidance hole (511) is larger than the outer diameter of the screw rod to provide movement space for the shutter assembly (5).

5. The LED display screen according to claim 3, characterized in that: A protruding abutment block (612) is provided in the slide groove (611), and the abutment block (612) abuts against the slide rod (51).

6. The LED display screen according to claim 3, characterized in that: A grid plate (7) is provided below the shutter assembly (5), and a through groove (71) and abutment (72) are provided on the grid plate (7), a screw hole is provided in the middle of the abutment (72), a second avoidance hole (521) is provided on the shutter (52), the abutment (72) is inserted into the second avoidance hole (521), and the aperture of the second avoidance hole (521) is larger than the outer diameter of the abutment (72), a connecting column protruding from the slide groove (611) is provided in the slide groove (611) below the vertical beam (61), and the connecting column is inserted into the first avoidance hole (511) provided on the slide rod (51), and the inner diameter of the first avoidance hole (511) is larger than the outer diameter of the connecting column, and a screw is used to pass through the abutment (72) to fix the grid plate (7) on the connecting column.

7. The LED display screen according to claim 3, characterized in that: Limiting members (73) are also provided on both sides of the grid plate (7), and both sides of the shutter (52) are limited by the limiting members (73).

Images