Auxiliary testing device for brightness of LED display screen

Abstract

The utility model discloses an LED display screen brightness auxiliary testing device which comprises a brightness meter body, a lens is installed at the lower end of the brightness meter body, sliding grooves are formed in the side walls of the two ends of the brightness meter body, and a protection mechanism used for protecting the lens is arranged in the two sliding grooves jointly. The protection mechanism comprises two sliding blocks which are slidably connected into the two sliding grooves correspondingly, rotating shafts are rotationally connected to the side walls of the two sliding blocks correspondingly, rotating plates are fixedly connected to the ends of the two rotating shafts correspondingly, and a protection plate is fixedly connected between the two rotating plates jointly. And a moving mechanism used for moving the protection plate is arranged in one sliding groove. According to the utility model, the structure is reasonable, through the arrangement of the protection mechanism and the moving mechanism, after use, the rotating plate and the protection plate can be overturned, and the protection layer clings to the lens to shield the lens, so that the lens is protected, and the lens is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, in particular to an auxiliary testing device for brightness of an LED display screen. Background Art

[0002] With the continuous development of LED display technology, the application of LED display is becoming more and more extensive. In the production and use of LED display, the brightness of LED display needs to be tested to ensure the display effect and quality of LED display. At present, the commonly used LED display brightness test method is to use a brightness meter to directly measure the LED display.

[0003] In the prior art, during the use of a traditional brightness meter, a probe is passed over the top of a display screen to complete the measurement. However, most of the traditional brightness meter probes are directly exposed to the outside. When not in use, they lack protection and are easily damaged by bumps. In addition, dust may be adsorbed on the probe, affecting the test effect. Therefore, the utility model proposes an auxiliary test device for LED display screen brightness to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an auxiliary testing device for the brightness of an LED display screen.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An auxiliary test device for brightness of an LED display screen comprises a brightness meter body, a lens is installed at the lower end of the brightness meter body, slide grooves are provided on the side walls at both ends of the brightness meter body, and a protective mechanism for protecting the lens is commonly provided in the two slide grooves. The protective mechanism comprises two sliders respectively slidably connected in the two slide grooves, the side walls of the two sliders are rotatably connected with a rotating shaft, the ends of the two rotating shafts are fixedly connected with a rotating plate, a guard plate is commonly fixedly connected between the two rotating plates, a moving mechanism for moving the protective plate is provided in one of the slide grooves, and a limiting mechanism for limiting the protective plate is also provided on the side wall of the brightness meter body.

[0007] Preferably, the moving mechanism includes a threaded rod rotatably connected between the inner walls at both ends of the slide groove, the threaded rod passes through one of the sliders and is threadedly connected thereto, the upper end of the brightness meter body is fixedly connected to a motor, and the end of the output shaft of the motor is fixedly connected to the upper end of the threaded rod.

[0008] Preferably, the limiting mechanism comprises a rack fixedly connected to the side wall of the brightness meter body, and a gear meshing with the rack is fixedly sleeved on one of the rotating shafts.

[0009] Preferably, a torsion spring is provided at the rotation connection between the two rotation shafts and the sliding block on the same side.

[0010] Preferably, a limit rod is fixedly connected between the inner walls at both ends of one of the slide grooves, and the limit rod passes through the slider on the same side and is slidably connected thereto.

[0011] Preferably, a protective layer is installed on a side of the protective plate close to the luminance meter body, and the material of the protective layer is sponge.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. By setting up a protective mechanism and a moving mechanism, after use, the output shaft of the driving motor rotates, driving the threaded rod to rotate, so that the slider threadedly connected thereto moves, driving the rotating shaft, the rotating plate and the protective plate on both sides to move. When it moves to the position of the rack, the gear rotates under the action of the rack, driving the rotating shaft to rotate, driving the rotating plate and the guard plate to flip until they are parallel to the lens, thereby shielding the lens, thereby protecting the lens and preventing damage to the lens.

[0014] 2. By setting a torsion spring, the torsion spring can provide support for the protective plate when the protective plate is rotated and opened away from the lens, so that the protective plate can be in a vertical state. During the flipping process, the torsion spring rotates and accumulates force. When the protective plate is opened again, the torsion spring releases the elastic force to reset the protective plate. The protective plate can be limited to ensure that the protective plate does not interfere with the use of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the LED display screen brightness auxiliary test device proposed by the utility model;

[0016] Figure 2 A three-dimensional diagram of the LED display screen brightness auxiliary test device proposed by the utility model;

[0017] Figure 3 This is a bottom-up stereoscopic diagram of the LED display brightness auxiliary test device proposed by the utility model;

[0018] Figure 4 for Figure 3 A magnified view of the structure in Figure 2.

[0019] In the figure: 1 brightness meter body, 2 rack, 3 gear, 4 motor, 5 guard plate, 6 lens, 7 threaded rod, 8 slide groove, 9 slider, 10 rotating plate, 11 limit rod, 12 torsion spring, 13 rotating shaft. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0021] Reference Figure 1-4 , an auxiliary test device for brightness of an LED display screen comprises a brightness meter body 1, a lens 6 is installed at the lower end of the brightness meter body 1, and slide grooves 8 are provided on the side walls at both ends of the brightness meter body 1, and a protective mechanism for protecting the lens 6 is commonly provided in the two slide grooves 8, and the protective mechanism comprises two sliders 9 respectively slidably connected in the two slide grooves 8, and the side walls of the two sliders 9 are rotatably connected with a rotating shaft 13, and the ends of the two rotating shafts 13 are fixedly connected with a rotating plate 10, and a guard plate 5 is commonly fixedly connected between the two rotating plates 10, and a protective layer is installed on a side of the protective plate 5 close to the brightness meter body 1, and the material of the protective layer is sponge. By setting a protective layer made of sponge material, better protection of the lens 6 can be achieved. Since the sponge is soft in texture, it will not cause damage to the lens 6. At the same time, the sponge has good ductility. When flipping, the side of the protective layer close to the lens 6 is squeezed by the lens 6 and can be damaged. After the protective plate 5 is rotated into place, the protective layer can be close to the surface of the lens 6 to prevent dust from entering.

[0022] In the utility model, a moving mechanism for moving the protective plate 5 is provided in one of the slide grooves 8, and the moving mechanism includes a threaded rod 7 rotatably connected between the inner walls at both ends of the slide groove 8, the threaded rod 7 passes through one of the sliders 9 and is threadedly connected thereto, and the upper end of the brightness meter body 1 is fixedly connected to the motor 4, and the end of the output shaft of the motor 4 is fixedly connected to the upper end of the threaded rod 7.

[0023] In the utility model, a limiting mechanism for limiting the protective plate 5 is also provided on the side wall of the brightness meter body 1, and the limiting mechanism includes a rack 2 fixedly connected to the side wall of the brightness meter body 1, a gear 3 meshing with the rack 2 is fixedly sleeved on one of the rotating shafts 13, and a torsion spring 12 is provided at the rotating connection between the two rotating shafts 13 and the slider 9 on the same side. The position of the rack 2 can be adjusted according to actual use conditions. The torsion spring 12 can limit the protective plate 5. In the initial state, the torsion spring 12 does not rotate to store force. When the protective plate 5 is flipped to protect the lens 6, the torsion spring 12 rotates to store force. When the protective plate 5 is opened again, the protective plate 5 can quickly return to the vertical state.

[0024] In the utility model, a limit rod 11 is fixedly connected between the inner walls at both ends of one of the slide grooves 8. The limit rod 11 passes through the slider 9 on the same side and is slidably connected thereto. The limit rod 11 can limit the slider 9 and improve the stability of its movement.

[0025] When the utility model is used, the first use is as follows Figures 1 to 3 In the state shown, the protective plate 5 is in an open state, and the brightness meter body 1 can be used to cooperate with the lens 6 to test the display screen. After the test is completed, the output shaft of the motor 4 can be driven to rotate, driving the threaded rod 7 to rotate, thereby driving the slider 9 threadedly connected thereto to move. The movement of the slider 9 can drive the rotating shaft 13, the rotating plate 10, and the protective plate 5 to move. When the rotating shaft 13 moves to the rack 2, the rack 2 meshes with the gear 3 and continues to move. Under the action of the rack 2, the gear 3 rotates, driving the rotating shaft 13 to rotate and causing the torsion spring 12 to rotate and store force, thereby driving the rotating plate 10 and the protective plate 5 to flip to a horizontal state. At this time, the protective plate 5 is located below the lens 6, and the protective layer on the protective plate 5 contacts the surface of the lens 6 to protect the lens 6.

[0026] When used again, the output shaft of the driving motor 4 is reversed, driving the threaded rod 7 to reverse, driving the slider 9 to move upward, and under the action of the rack 2, the gear 3 rotates, driving the rotating plate 10 and the protective plate 5 to flip, so that the protective plate 5 is reversed to a vertical state. At this time, the protective plate 5 is located on one side of the brightness meter body 1, and the lens 6 is opened, and the display screen can be tested.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A LED display screen brightness auxiliary test device, comprising a brightness meter body (1), characterized in that: A lens (6) is installed at the lower end of the brightness meter body (1), and a slide groove (8) is provided on the side walls at both ends of the brightness meter body (1). A protective mechanism for protecting the lens (6) is provided in the two slide grooves (8). The protective mechanism includes two sliders (9) respectively slidably connected in the two slide grooves (8). The side walls of the two sliders (9) are rotatably connected with a rotating shaft (13), and the ends of the two rotating shafts (13) are fixedly connected with a rotating plate (10). A guard plate (5) is fixedly connected between the two rotating plates (10), and a moving mechanism for moving the protective plate (5) is provided in one of the slide grooves (8). A limiting mechanism for limiting the protective plate (5) is also provided on the side wall of the brightness meter body (1).

2. The LED display screen brightness auxiliary test device according to claim 1, characterized in that: The moving mechanism comprises a threaded rod (7) rotatably connected between the inner walls at both ends of the slide groove (8), the threaded rod (7) passes through one of the sliders (9) and is threadedly connected thereto, the upper end of the brightness meter body (1) is fixedly connected to a motor (4), and the output shaft end of the motor (4) is fixedly connected to the upper end of the threaded rod (7).

3. The LED display screen brightness auxiliary test device according to claim 2, characterized in that: The limiting mechanism comprises a rack (2) fixedly connected to the side wall of the brightness meter body (1), and a gear (3) meshing with the rack (2) is fixedly sleeved on one of the rotating shafts (13).

4. The LED display screen brightness auxiliary test device according to claim 3, characterized in that: Torsion springs (12) are provided at the rotational connection points between the two rotation shafts (13) and the slider (9) on the same side.

5. The LED display screen brightness auxiliary test device according to claim 4, characterized in that: A limiting rod (11) is fixedly connected between the inner walls at both ends of one of the slide grooves (8), and the limiting rod (11) passes through the slider (9) on the same side and is slidably connected thereto.

6. The LED display screen brightness auxiliary test device according to claim 5, characterized in that: A protective layer is installed on one side of the protective plate (5) close to the luminance meter body (1), and the material of the protective layer is sponge.

Images