Liquid crystal display screen bending degree detection mechanism

Abstract

The utility model discloses a liquid crystal display screen curvature detection mechanism which comprises a bottom plate, a liquid crystal display screen is placed on the surface of a first rubber non-slip mat in two groups of clamping mechanisms, and a pressing plate is driven to descend through two groups of air cylinder piston rods, so that the pressing plate drives a second rubber non-slip mat to press and fix the liquid crystal display screen. An electric push rod in the jacking mechanism can drive a jacking block to ascend to abut against the clamped and fixed liquid crystal display screen, along with ascending of the jacking block, two sets of sliding blocks move relatively under cooperation of two sets of connecting rods, the liquid crystal display screen is bent, a pressing plate arranged on one side in an arc shape can be better attached to the bent liquid crystal display screen, and the liquid crystal display screen is prevented from being damaged; and meanwhile, under the cooperation of the rotating shaft, the clamping mechanism which is movably arranged can be subjected to angle adjustment along with bending of the liquid crystal display screen, so that the clamping mechanism can be better matched with the liquid crystal display screen for bending test, and the risk that the liquid crystal display screen slips during bending detection can be avoided to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing equipment, in particular to a curvature detection mechanism for a liquid crystal display screen. Background Art

[0002] Display screens are generally used as signal output devices for computers. With the continuous updating of technology, curved display screens have appeared. Curved display screens have better display effects, but there are requirements on the degree of curvature of the monitor.

[0003] For example, a device for testing and inspecting the curvature of a display screen (Announcement No.: CN209690081U) includes a main frame, a movable plate, a threaded rod, and a first collection box. A hydraulic cylinder is arranged above the main frame, and a hydraulic rod is arranged below the hydraulic cylinder. The hydraulic rod penetrates the main frame, and a pressure plate is arranged below the hydraulic rod. A telescopic rod is arranged below the pressure plate, and a fixed block is arranged on the outside of the telescopic rod. A pressure roller is arranged below the fixed block, and a first sponge layer is arranged on the outside of the pressure roller. The movable plate is arranged on both sides of the lower interior of the main frame, and a support plate is arranged above the movable plate, and the support plate is connected to the movable plate through a rotating shaft. The device for testing and inspecting the curvature of a display screen is provided with a telescopic rod and a first sponge layer. The position of the pressure roller is adjusted by adjusting the length of the telescopic rod, thereby adjusting the distance between the two pressure rollers, so as to perform a bending test on different positions of the display screen.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it was found that the above equipment lacks a structure for clamping and fixing the display screen when used. The display screen is placed on two sets of support plates. When the two sets of pressure rollers descend to press the display screen, as the display screen bends, there is a risk that the two ends of the display screen will easily slip off the support plates, affecting the detection of the bend of the display screen. Therefore, we need to propose a liquid crystal display curvature detection mechanism. Utility Model Content

[0005] The purpose of the utility model is to provide a liquid crystal display screen curvature detection mechanism, which can avoid the risk of the liquid crystal display screen slipping during curvature detection to a certain extent through the cooperation of two sets of clamping mechanisms, so as to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A bending degree detection mechanism for a liquid crystal display screen, comprising a bottom plate. On the surface of the bottom plate, two groups of support plates are symmetrically and fixedly installed. Between the two groups of support plates, two groups of connecting rods are fixedly installed. On the outer walls of the two groups of connecting rods, two groups of sliding blocks are symmetrically and slidably sleeved. On the tops of the two groups of sliding blocks, clamping mechanisms for clamping and fixing the liquid crystal display screen are installed. In the middle of the two groups of sliding blocks on the bottom plate, a jacking mechanism for bending the liquid crystal display screen is provided.

[0008] Preferably, the clamping mechanism includes a U-shaped plate. The U-shaped plate is movably installed on the top of the sliding block. The bottom of the U-shaped plate is in contact with the bottom of the sliding block. A first rubber anti-slip pad is fixedly installed on the inner bottom of the U-shaped plate. On the top of the U-shaped plate, two groups of cylinders are symmetrically and fixedly installed. One end of the piston rods of the two groups of cylinders penetrates through the U-shaped plate and is fixedly connected with a pressing plate.

[0009] Preferably, one side bottom of the pressing plate is set to be an arc shape convenient for fitting when the liquid crystal display screen is bent, and a second rubber anti-slip pad is fixedly adhered to the bottom of the pressing plate.

[0010] Preferably, two groups of fixing blocks are fixedly installed above one side of the sliding block. A rotating shaft is rotatably installed between the two groups of fixing blocks. The bottom of one side of the U-shaped plate is fixedly connected with the outer wall of the top of the rotating shaft.

[0011] Preferably, the jacking mechanism includes an electric push rod. The electric push rod is fixedly installed at the center of the surface of the bottom plate. The top of the piston rod of the electric push rod is fixedly connected with a jacking block.

[0012] Preferably, the jacking block is located above the two groups of connecting rods. The jacking block is set as a triangular jacking block, and the top of the jacking block is set to be an arc shape.

[0013] Preferably, a control panel is fixedly installed on one side of one of the support plates of the bottom plate. The control panel is electrically connected to the cylinder and the electric push rod through wires respectively.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] The utility model places a liquid crystal display screen on the surface of the first rubber anti-skid pads in the two groups of clamping mechanisms, drives the pressure plate to descend through the two groups of cylinder piston rods, and causes the pressure plate to drive the second rubber anti-skid pad to press and fix the liquid crystal display screen. The electric push rod in the lifting mechanism can drive the lifting block to rise to contact the clamped and fixed liquid crystal display screen. As the lifting block rises, the two groups of sliding blocks move relatively with the cooperation of the two groups of connecting rods, and the liquid crystal display screen bends. The arc-shaped pressure plate on one side can better fit the bent liquid crystal display screen to avoid damage to the liquid crystal display screen. At the same time, the movably arranged clamping mechanism can adjust the angle of the clamping mechanism with the cooperation of the rotating shaft as the liquid crystal display screen bends, so as to better cooperate with the liquid crystal display screen for bending test, and can avoid the risk of slipping during bending detection of the liquid crystal display screen to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the sliding block and the clamping mechanism of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the clamping mechanism and the rotating shaft of the utility model.

[0019] In the figure: 1. bottom plate; 2. support plate; 3. connecting rod; 4. sliding block; 5. clamping mechanism; 51. profile plate; 52. first rubber anti-skid pad; 53. cylinder; 54. pressure plate; 55. second rubber anti-skid pad; 6. lifting mechanism; 61. electric push rod; 62. lifting block; 7. control panel; 8. fixing block; 9. rotating shaft. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 , the utility model provides a technical solution:

[0022] A liquid crystal display bending degree detection mechanism, including a bottom plate 1, on the surface of the bottom plate 1, two groups of support plates 2 are symmetrically and fixedly installed. Between the two groups of support plates 2, two groups of connecting rods 3 are fixedly installed. On the outer walls of the two groups of connecting rods 3, two groups of sliding blocks 4 are symmetrically sleeved in a sliding manner. On the tops of the two groups of sliding blocks 4, a clamping mechanism 5 for clamping and fixing the liquid crystal display is installed. The two groups of sliding blocks 4 move relatively or in opposite directions under the cooperation of the two groups of connecting rods 3, and the distance between the two groups of clamping mechanisms 5 can be adjusted according to the length of the liquid crystal display. In the middle of the bottom plate 1 between the two groups of sliding blocks 4, a jacking mechanism 6 for bending test of the liquid crystal display is provided.

[0023] The clamping mechanism 5 includes a U-shaped plate 51, the U-shaped plate 51 is movably installed on the top of the sliding block 4, the bottom of the U-shaped plate 51 is attached to the bottom of the sliding block 4, a first rubber anti-slip pad 52 is fixedly installed on the inner bottom of the U-shaped plate 51, and two groups of cylinders 53 are symmetrically and fixedly installed on the top of the U-shaped plate 51. One end of the piston rods of the two groups of cylinders 53 penetrates through the U-shaped plate 51 and is fixedly connected with a pressing plate 54, which is convenient for driving the pressing plate 54 to descend through the piston rods of the two groups of cylinders 53 to press and fix the liquid crystal display.

[0024] One side bottom of the pressing plate 54 is set as an arc shape for facilitating the fitting when the liquid crystal display bends, and a second rubber anti-slip pad 55 is fixedly adhered to the bottom of the pressing plate 54. The pressing plate 54 with an arc shape on one side can better fit the bent liquid crystal display, and cooperate with the second rubber anti-slip pad 55 to avoid damaging the liquid crystal display.

[0025] Above one side of the sliding block 4, two groups of fixing blocks 8 are fixedly installed. Between the two groups of fixing blocks 8, a rotating shaft 9 is rotatably installed. The bottom of one side of the U-shaped plate 51 is fixedly connected to the outer wall of the top of the rotating shaft 9, which is convenient for the clamping mechanism 5 to adjust the angle along with the bending of the liquid crystal display through the cooperation of the rotating shaft 9, so as to better cooperate with the liquid crystal display for the bending degree test.

[0026] The jacking mechanism 6 includes an electric push rod 61, the electric push rod 61 is fixedly installed at the center of the surface of the bottom plate 1, and the top of the piston rod of the electric push rod 61 is fixedly connected with a jacking block 62, which is convenient for driving the jacking block 62 to rise through the electric push rod 61 to abut against the clamped and fixed liquid crystal display. As the jacking block 62 rises, the liquid crystal display bends.

[0027] The jacking block 62 is located above the two groups of connecting rods 3. The jacking block 62 is set as a triangular jacking block, and the top of the jacking block 62 is set as an arc shape, which is convenient for avoiding damaging the liquid crystal display.

[0028] On one side of one of the support plates 2 of the bottom plate 1, a control panel 7 is fixedly installed. The control panel 7 is electrically connected to the cylinder 53 and the electric push rod 61 through wires respectively, which is convenient for controlling the components electrically connected to it through the control panel 7.

[0029] Working principle: When the utility model is used, the LCD screen is placed on the surface of the first rubber anti-skid pad 52 in the two groups of clamping mechanisms 5, and the piston rods of the two groups of cylinders 53 drive the pressure plate 54 to descend, so that the pressure plate 54 drives the second rubber anti-skid pad 55 to press and fix the LCD screen. The electric push rod 61 in the lifting mechanism 6 can drive the lifting block 62 to rise to contact the clamped and fixed LCD screen. As the lifting block 62 rises, the two groups of sliding blocks 4 move relative to each other with the cooperation of the two groups of connecting rods 3, and the LCD screen bends. The arc-shaped pressure plate 54 on one side can better fit the bent LCD screen to avoid damage to the LCD screen. At the same time, the movable clamping mechanism 5 can adjust the angle of the clamping mechanism 5 with the cooperation of the rotating shaft 9 as the LCD screen bends, so as to better cooperate with the LCD screen for curvature test, which can avoid the risk of slipping during the bending test of the LCD screen to a certain extent.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid crystal display curvature detection mechanism, comprising a bottom plate (1), characterized in that: On the surface of the bottom plate (1), two groups of support plates (2) are symmetrically and fixedly installed. Between the two groups of support plates (2), two groups of connecting rods (3) are fixedly installed. On the outer walls of the two groups of connecting rods (3), two groups of sliding blocks (4) are symmetrically and slidably sleeved. On the tops of the two groups of sliding blocks (4), clamping mechanisms (5) for clamping and fixing the liquid crystal display screen are installed. A jacking mechanism (6) for bending test of the liquid crystal display screen is arranged in the middle of the bottom plate (1) between the two groups of sliding blocks (4).

2. The curvature detection mechanism of a liquid crystal display screen according to claim 1, characterized in that: The clamping mechanism (5) includes a U-shaped plate (51). The U-shaped plate (51) is movably installed on the top of the sliding block (4). The bottom of the U-shaped plate (51) is in contact with the bottom of the sliding block (4). A first rubber anti-slip pad (52) is fixedly installed on the inner bottom of the U-shaped plate (51). On the top of the U-shaped plate (51), two groups of cylinders (53) are symmetrically and fixedly installed. One end of the piston rod of the two groups of cylinders (53) penetrates through the U-shaped plate (51) and is fixedly connected with a pressing plate (54).

3. The curvature detection mechanism of a liquid crystal display screen according to claim 2, characterized in that: One side bottom of the pressing plate (54) is set to be an arc shape convenient for fitting when the liquid crystal display screen is bent, and a second rubber anti-slip pad (55) is fixedly bonded to the bottom of the pressing plate (54).

4. The curvature detection mechanism of a liquid crystal display screen according to claim 3, characterized in that: Two groups of fixing blocks (8) are fixedly installed above one side of the sliding block (4). A rotating shaft (9) is rotatably installed between the two groups of fixing blocks (8). The bottom of one side of the U-shaped plate (51) is fixedly connected to the outer wall of the top of the rotating shaft (9).

5. The curvature detection mechanism of a liquid crystal display screen according to claim 4, characterized in that: The jacking mechanism (6) includes an electric push rod (61). The electric push rod (61) is fixedly installed at the center of the surface of the bottom plate (1). The top of the piston rod of the electric push rod (61) is fixedly connected with a jacking block (62).

6. The liquid crystal display curvature detection mechanism according to claim 5, characterized in that: The jacking block (62) is located above the two groups of connecting rods (3). The jacking block (62) is set as a triangular jacking block, and the top of the jacking block (62) is set to be an arc shape.

7. The curvature detection mechanism of a liquid crystal display screen according to claim 6, characterized in that: A control panel (7) is fixedly installed on one side of the bottom plate (1) where one group of support plates (2) is located. The control panel (7) is electrically connected to the cylinders (53) and the electric push rod (61) through wires respectively.

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