LED display screen box locking device

Abstract

The utility model relates to the technical field of LED display screens, and discloses an LED display screen box locking device which comprises a top cover, a bottom plate is arranged on the lower surface of the top cover, a button is connected into the top cover in a sliding mode, a telescopic rod and a first spring are fixedly connected to the inner wall of the button, the telescopic rod is located on the outer side of the first spring, and the telescopic rod is located on the outer side of the first spring. The outer walls of the telescopic rod and the first spring are fixedly connected to the inner wall of the top cover, the interior of the telescopic rod is slidably connected with a connecting rod, one end of the connecting rod is fixedly connected with a check block, and the outer wall of the connecting rod is slidably connected to the upper surface of the bottom plate. According to the device, the button is pressed to drive the connecting rod to slide, the connecting rod is separated from the interior of the slotting block, so that the sliding arm is adjusted to rotate, the rotating angle can be controlled through the ball, the device can adapt to box connection of different distances or angles, operation is easy and convenient, the connecting rod can be limited through the limiting pin, and the practicability is high. The use stability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED display screen technical field especially relates to LED display screen box locking device. BACKGROUND

[0002] LED display screen is composed of a plurality of light emitting diode pixel points, these pixel points are arranged into a matrix according to certain rules.When the light emitting diode is applied with proper forward voltage, electron and hole compound, release energy and radiate in the form of light. By controlling the luminous intensity and color combination of each pixel point, the required image or text content can be formed on the display screen.

[0003] Among them, the LED display screen box is an important component of the LED display screen, which plays a key role in supporting, protecting, facilitating assembly and maintenance in the whole display screen system. The LED display screen box locking device can realize quick and reliable connection and locking between the boxes. However, in specific use, the display screen box locking device may not be convenient to operate or the connection may be unstable due to different distances of the boxes or different angles of connection. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a LED display screen box locking device, which aims to improve the problem that the display screen box locking device may not be convenient to operate or the connection may be unstable due to different distances of the boxes or different angles of connection.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] The LED display screen box locking device comprises a top cover, a bottom plate is arranged on the lower surface of the top cover, a button is slidably connected in the top cover, a telescopic rod and a spring one are fixedly connected to the inner wall of the button, the telescopic rod is located on the outer side of the spring one, the outer walls of the telescopic rod and the spring one are fixedly connected to the inner wall of the top cover, a connecting rod is slidably connected in the telescopic rod, a stop block is fixedly connected to one end of the connecting rod, the outer wall of the connecting rod is slidably connected to the upper surface of the bottom plate, the outer wall of the stop block is arranged on the inner wall of the button, a sleeve is fixedly connected to the outer wall of the connecting rod, a spring two is fixedly connected to the outer wall of the sleeve, a fixing frame is arranged on the inner wall of the top cover, the outer wall of the spring two is fixedly connected to the outer wall of the fixing frame, a sliding arm is arranged on the inner wall of the top cover, a slotted block is arranged in the sliding arm, the other end of the connecting rod is arranged in the slotted block, a limiting pin is arranged in the top cover, and the bottom end of the limiting pin is arranged in the connecting rod.

[0007] Preferably, the outer walls of the top cover and the sliding arm are fixedly connected with connecting arms.

[0008] Preferably, the lower surface of the connecting arm is provided with a base.

[0009] Preferably, the top cover is provided with ball bearings inside.

[0010] Preferably, a limiting hole is formed inside the sliding arm.

[0011] Preferably, the outer wall of the ball is disposed inside the limiting hole.

[0012] Preferably, the ball bearings are provided in two sets, and the ball bearings are symmetrically distributed vertically.

[0013] Preferably, the limiting holes are provided in two sets, and the limiting holes are symmetrically distributed vertically.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, pressing the button drives the connecting rod to slide, and the connecting rod disengages from the groove block, thereby adjusting the sliding arm to rotate. The rotation angle can be controlled by the ball bearing, which can adapt to the connection of the box at different distances or angles. The operation is simple and convenient. The connecting rod can be restricted by the limit pin, which improves the stability of the device. Attached Figure Description

[0016] Figure 1 This is a perspective view of the LED display cabinet locking device proposed in this utility model;

[0017] Figure 2 This is a partial structural diagram of the slotted block of the LED display cabinet locking device proposed in this utility model;

[0018] Figure 3 This is a partial structural diagram of the button of the LED display cabinet locking device proposed in this utility model;

[0019] Figure 4 This is a partial structural diagram of the connecting arm of the LED display cabinet locking device proposed in this utility model.

[0020] Legend:

[0021] 1. Top cover; 2. Base plate; 3. Button; 4. Telescopic rod; 5. Spring 1; 6. Stop block; 7. Connecting rod; 8. Spring 2; 9. Sleeve; 10. Fixing bracket; 11. Sliding arm; 12. Slotted block; 13. Limit pin; 14. Connecting arm; 15. Base; 16. Ball bearing; 17. Limit hole. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-3 This utility model provides an embodiment of an LED display screen cabinet locking device, including a top cover 1, a base plate 2 on the lower surface of the top cover 1, a button 3 slidably connected inside the top cover 1, a telescopic rod 4 and a spring 5 fixedly connected to the inner wall of the button 3, the telescopic rod 4 being located outside the spring 5, and the outer walls of both the telescopic rod 4 and the spring 5 being fixedly connected to the inner wall of the top cover 1, a connecting rod 7 slidably connected inside the telescopic rod 4, a stop block 6 fixedly connected to one end of the connecting rod 7, and the outer wall of the connecting rod 7 slidably connected to the upper part of the base plate 2. On the surface, the outer wall of the stop block 6 is set on the inner wall of the button 3, the outer wall of the connecting rod 7 is fixedly connected to the sleeve 9, the outer wall of the sleeve 9 is fixedly connected to the spring 8, the inner wall of the top cover 1 is set with the fixing bracket 10, the outer wall of the spring 8 is fixedly connected to the outer wall of the fixing bracket 10, the inner wall of the top cover 1 is set with the sliding arm 11, the inside of the sliding arm 11 is set with the slotted block 12, the other end of the connecting rod 7 is set inside the slotted block 12, the inside of the top cover 1 is set with the limit pin 13, and the bottom end of the limit pin 13 is set inside the connecting rod 7.

[0024] Specifically, there are two sets of sliding arms 11, which are symmetrically distributed around button 3. When button 3 is pressed, button 3 compresses spring 5 and telescopic rod 4 retracts. There are stops 6 on both sides of button 3. Button 3 drives the connecting rods 7 on both sides to slide inward through the stops 6. The connecting rods 7 slide inward to release the restriction on slotted block 12. At this time, the sliding arms 11 can be adjusted. When button 3 is released, spring 5 rebounds and button 3 slides outward. Spring 8 rebounds and connecting rod 7 is reinserted into slotted block 12. Holes are opened on both the upper and lower sides of sleeve 9. Limiting pin 13 can pass through sleeve 9 and be inserted into the interior of connecting rod 7, thereby fixing connecting rod 7 and preventing it from sliding again.

[0025] Reference Figures 1-3 The top cover 1 and the outer wall of the sliding arm 11 are both fixedly connected to the connecting arm 14; the lower surface of the connecting arm 14 is provided with a base 15.

[0026] Specifically, there are four connecting arms 14 in total. The two front connecting arms 14 are connected to the sliding arm 11, and the two rear connecting arms 14 are connected to the top cover 1. Each connecting arm 14 has a base 15 on its lower surface.

[0027] ReferenceFigure 1 and Figure 4 The top cover 1 has a ball bearing 16 inside; the sliding arm 11 has a limit hole 17 inside; the outer wall of the ball bearing 16 is set inside the limit hole 17; there are two sets of ball bearing 16, which are symmetrically distributed vertically; there are two sets of limit holes 17, which are symmetrically distributed vertically.

[0028] Specifically, nine limiting holes 17 are provided on both the upper and lower sides. When the upper and lower balls 16 move forward or backward simultaneously once, the rotation angle can be adjusted to five degrees, and the total tilt angle can be adjusted to twenty degrees.

[0029] Working principle: When using the display screen cabinet locking device, first press button 3. Button 3 compresses spring 5. Button 3 pushes the stop block 6 to drive one end of the connecting rod 7 to slide. The sliding of the connecting rod 7 drives the sleeve 9 to slide. The sleeve 9 compresses spring 8. A limit groove is opened inside the slotted block 12. When the other end of the connecting rod 7 slides out of the limit groove of the slotted block 12, the sliding arm 11 can rotate, thereby driving the slotted block 12 to rotate. The sliding arm 11 can slide inside the top cover 1. By adjusting the relative position of the ball 16 and the limit hole 17, the sliding distance of the sliding arm 11 can be controlled, thereby controlling the rotation angle. When button 3 is released, spring 5 rebounds, and at the same time, spring 8 rebounds, driving the connecting rod 7 to insert into the limit groove of the slotted block 12. The sliding arm 11 can no longer rotate. The sliding of the connecting rod 7 can be controlled by the limit pin 13. When the limit pin 13 is inserted into the connecting rod 7, the connecting rod 7 is fixed. This device is simple to operate and can adapt to cabinets with different distances and connection angles.

[0030] 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. An LED display cabinet locking device, including a top cover (1), characterized in that: A base plate (2) is provided on the lower surface of the top cover (1). A button (3) is slidably connected inside the top cover (1). A telescopic rod (4) and a spring (5) are fixedly connected to the inner wall of the button (3). The telescopic rod (4) is located outside the spring (5). The outer walls of the telescopic rod (4) and the spring (5) are both fixedly connected to the inner wall of the top cover (1). A connecting rod (7) is slidably connected inside the telescopic rod (4). A stop block (6) is fixedly connected to one end of the connecting rod (7). The outer wall of the connecting rod (7) is slidably connected to the upper surface of the base plate (2). The outer wall of the stop block (6) is located on the button (3). The inner wall of the top cover (1) is fixedly connected to the outer wall of the connecting rod (7) and the outer wall of the sleeve (9) is fixedly connected to the outer wall of the sleeve (9). The inner wall of the top cover (1) is provided with a fixing frame (10). The outer wall of the spring (8) is fixedly connected to the outer wall of the fixing frame (10). The inner wall of the top cover (1) is provided with a sliding arm (11). The sliding arm (11) is provided with a slotted block (12). The other end of the connecting rod (7) is provided inside the slotted block (12). The top cover (1) is provided with a limit pin (13). The bottom end of the limit pin (13) is provided inside the connecting rod (7).

2. The LED display cabinet locking device according to claim 1, characterized in that: The outer walls of the top cover (1) and the sliding arm (11) are both fixedly connected to connecting arms (14).

3. The LED display cabinet locking device according to claim 2, characterized in that: The lower surface of the connecting arm (14) is provided with a base (15).

4. The LED display cabinet locking device according to claim 1, characterized in that: The top cover (1) is provided with ball bearings (16) inside.

5. The LED display cabinet locking device according to claim 1, characterized in that: The sliding arm (11) has a limiting hole (17) inside.

6. The LED display cabinet locking device according to claim 4, characterized in that: The outer wall of the ball (16) is disposed inside the limiting hole (17).

7. The LED display cabinet locking device according to claim 4, characterized in that: The ball bearings (16) are provided in two sets, and the ball bearings (16) are symmetrically distributed vertically.

8. The LED display cabinet locking device according to claim 5, characterized in that: The limiting holes (17) are provided in two sets, and the limiting holes (17) are symmetrically distributed vertically.

Images