A negative pressure mobile bracket for LCD screen detection

Abstract

The utility model discloses a negative pressure mobile bracket for liquid crystal screen detection, comprising an operating table, wherein the operating table is respectively provided with a plurality of rollers at the bottom, and the upper end surface of the operating table is respectively provided with fixing boxes at both ends, and a first servo motor is provided in the fixing box, and an output shaft is provided on the first servo motor, and the other end of the output shaft is connected to a fixing frame. The airbag of the negative pressure mobile bracket for liquid crystal screen detection forms a spiral locking structure through a fixing block, a screw, a nut and a concave limiting plate, and the friction damage caused by the concave limiting plate to the liquid crystal screen is reduced by the airbag when the device is squeezed and limited to the liquid crystal screen, and the vibration of the liquid crystal screen during the movement of the device is reduced by the airbag, and the suction cup of the device forms a rotating structure with the concave fixing frame through a rotating rod, and the inner wall of the hollow rod and the outer wall of the telescopic rod are provided with matching threads, so that the stability of the liquid crystal screen is increased by the telescopic suction cup assembly during the placement of the liquid crystal screen.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal screen detection, in particular to a negative pressure mobile bracket for liquid crystal screen detection. Background Art

[0002] Liquid crystal display, or "LCD" for short, is a flat panel display device that uses the optical properties of liquid crystal materials to change under the action of an electric field to display images. It was introduced in the late 1970s and is widely used in the display field of electronic devices such as computers, televisions, and oscilloscopes. In order to facilitate various tests on the LCD screen, a mobile bracket is used to place the LCD screen, so that it is easy to drive the LCD screen to move.

[0003] During the use of the mobile bracket, the liquid crystal screen is squeezed and limited by the limiting component, so that the liquid crystal screen can be moved and tested easily. However, during the use of the existing mobile bracket, the vibration and friction generated by the limiting component during the movement of the liquid crystal screen are easy to cause damage to the liquid crystal screen. Therefore, a negative pressure mobile bracket for liquid crystal screen testing is proposed to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a negative pressure mobile bracket for LCD screen detection, so as to solve the problem that the existing mobile bracket proposed in the above background technology is easy to cause damage to the LCD screen itself due to vibration and friction generated by the limit assembly during the movement during use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a negative pressure mobile bracket for liquid crystal screen detection, comprising an operating table, the operating table is respectively provided with a plurality of groups of rollers at the bottom, the upper end surface of the operating table is respectively provided with fixed boxes at both ends, and a first servo motor is arranged in the fixed box, the first servo motor is provided with an output shaft, and the other end of the output shaft is connected to the fixed frame, the other end of the fixed frame is provided with a rotating block, and the other end of the rotating block is inserted into the fixed box, a second servo motor is arranged in the fixed frame, and one end of the output shaft of the second servo motor is connected to a bidirectional screw through a coupling, the bidirectional screw is correspondingly provided with a sliding rod at the bottom, and the bidirectional screw and the sliding rod are respectively inserted with movable blocks at both ends, the upper part of the movable block is connected with a concave limiting plate through a connecting rod, the concave limiting plate is respectively inserted with air bags on the opposite surfaces, and the air bags are respectively connected to the fixed blocks on the outside, the fixed block and the concave limiting plate are inserted with screws, and the screws are spirally provided with nuts on the lower end surfaces;

[0006] A liquid crystal screen is placed between the concave limiting plates, and a plurality of suction cups are arranged on the lower end surface of the liquid crystal screen, the lower end of the suction cup is connected to a rotating rod, and the rotating rod is inserted into the concave fixing frame, and the concave fixing frame is provided with a hollow rod at the bottom, and a telescopic rod is inserted into the hollow rod;

[0007] A sliding block is provided at the lower end of the telescopic rod, and the sliding block is inserted into a sliding groove on the operating table. The outer side of the sliding groove is provided with limiting holes on the operating table and the sliding block, and the limiting holes are inserted into the limiting blocks.

[0008] Preferably, the fixed frame forms a rotating structure through the output shaft, the rotating block and the fixed box under the action of the first servo motor, and the concave limiting plate forms a bidirectional limiting sliding structure through the bidirectional screw, the sliding rod and the movable block under the action of the second servo motor.

[0009] Preferably, the airbag forms a spiral locking structure through a fixing block, a screw rod, a nut and a concave limiting plate.

[0010] Preferably, the suction cup forms a rotating structure with the concave fixing frame through a rotating rod, and the inner wall of the hollow rod and the outer wall of the telescopic rod are provided with matching threads.

[0011] Preferably, the sliding block forms a sliding structure with the operating table in the sliding groove, and the sliding block forms a locking limiting structure with the operating table through a limiting block.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the airbag of the negative pressure mobile bracket for LCD screen detection forms a spiral locking structure through a fixed block, a screw, a nut and a concave limiting plate, and the friction damage caused by the concave limiting plate to the LCD screen is reduced when the device is squeezed and limited by the airbag, and the vibration of the LCD screen during the movement of the device is reduced by the airbag. The suction cup of the device forms a rotating structure with the concave fixing frame through a rotating rod, and the inner wall of the hollow rod and the outer wall of the telescopic rod are provided with matching threads, so that the stability of the LCD screen is increased through the retractable suction cup assembly during the placement of the LCD screen. The slider of the device forms a sliding structure with the operating table in the slide groove, and the slider forms a locking limiting structure with the operating table through the limiting block, so that the LCD screen can be easily rotated through the slidable suction cup, and then it is convenient to perform multi-directional detection on it. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a concave limit plate sliding assembly of a negative pressure mobile bracket for LCD screen detection in the utility model;

[0014] Figure 2 This is a side view structural diagram of a negative pressure mobile bracket for LCD screen detection according to the utility model;

[0015] Figure 3 This is a schematic diagram of the side view structure of a negative pressure mobile bracket for LCD screen detection according to the utility model;

[0016] Figure 4 This is a schematic diagram of the top view of the structure of a negative pressure mobile bracket for LCD screen detection according to the utility model;

[0017] Figure 5 The utility model is a schematic structural diagram of a negative pressure mobile bracket suction cup assembly for liquid crystal screen detection.

[0018] In the figure: 1, operating table, 2, roller, 3, fixing box, 4, first servo motor, 5, fixing frame, 6, second servo motor, 7, bidirectional screw, 8, sliding rod, 9, movable block, 10, concave limit plate, 11, air bag, 12, fixing block, 13, screw, 14, LCD screen, 15, suction cup, 16, rotating rod, 17, concave fixing frame, 18, hollow rod, 19, telescopic rod, 20, slider, 21, limit block. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-5 The utility model provides a technical solution: a negative pressure mobile bracket for liquid crystal screen detection, comprising an operating table 1, wherein the operating table 1 is respectively provided with a plurality of rollers 2 at the bottom, and the upper end surface of the operating table 1 is respectively provided with fixed boxes at both ends, and a first servo motor 4 is arranged in the fixed box, and an output shaft is arranged on the first servo motor 4, and the other end of the output shaft is connected to a fixed frame 5, and a rotating block is arranged at the other end of the fixed frame 5, and the other end of the rotating block is inserted into the fixed box 3, and a second servo motor 6 is arranged in the fixed frame 5, and one end of the output shaft of the second servo motor 6 is connected to a bidirectional screw 7 through a coupling, and a sliding rod 8 is correspondingly provided at the bottom of the bidirectional screw 7, and movable blocks 9 are respectively inserted at both ends of the bidirectional screw 7 and the sliding rod 8, and a concave limiting plate 10 is connected to the upper part of the movable block 9 through a connecting rod.

[0021] Furthermore, under the action of the first servo motor 4, the fixed frame 5 forms a rotating structure through the output shaft, the rotating block and the fixed box 3, and the concave limiting plate 10 forms a bidirectional limiting sliding structure through the bidirectional screw 7, the sliding rod 8 and the movable block 9 under the action of the second servo motor 6, so that the LCD screen 14 is squeezed and limited by the concave limiting plate 10 that moves in a bidirectional limiting manner, and the LCD screen 14 and the limiting component are driven to rotate by the first servo motor 4, thereby facilitating the detection of the LCD screen 14.

[0022] The concave limiting plate 10 is respectively interspersed with air bags 11 on the opposite surfaces, and the air bags 11 are respectively connected to the fixing blocks 12 on the outside, and the fixing blocks 12 and the concave limiting plate 8 are interspersed with screws 13, and the screws 13 are spirally connected with nuts on the lower end surfaces.

[0023] Furthermore, the airbag 11 forms a spiral locking structure through the fixing block 12, the screw rod 13, the nut and the concave limiting plate 10, so as to facilitate the loading and unloading of the airbag 11 and reduce the vibration and friction of the LCD screen 14 during the limiting movement of the airbag 11.

[0024] A liquid crystal screen 14 is placed between the concave limiting plates 10, and a plurality of suction cups 15 are provided on the lower end surface of the liquid crystal screen 14, the lower end of the suction cup 15 is connected to a rotating rod 16, and the rotating rod 16 is inserted into the concave fixing frame 17, and the concave fixing frame 17 is provided with a hollow rod 18 at the bottom, and a telescopic rod 19 is inserted into the hollow rod 18.

[0025] Furthermore, the suction cup 15 forms a rotating structure with the concave fixing frame 17 through the rotating rod 16, and the inner wall of the hollow rod 18 and the outer wall of the telescopic rod 19 are provided with matching threads, so that the telescopic rod 19 and the rotating rod 16 ensure that the suction cup 15 is always in contact with the lower end surface to support the LCD screen 14 after rotation.

[0026] A slider 20 is provided at the lower end of the telescopic rod 19, and the slider 20 is inserted into a slide groove on the operating table 1. The outer side of the slide groove is provided with limit holes on the operating table 1 and the slider 20, respectively, and a limit block 21 is inserted into the limit hole.

[0027] Furthermore, the slider 20 forms a sliding structure with the operating table 1 in the slide groove, and the slider 20 forms a locking limiting structure with the operating table 1 through the limiting block 21, so that the LCD screen 14 can be horizontally rotated by the slider 20 so that the concave limiting plate 10 can limit its various directions.

[0028] Working principle: When using the negative pressure mobile bracket for LCD screen detection, first insert the airbag 11 into the concave limit plate 10, and insert the screw 13 into the fixing block 12 and the concave fixing plate 10, so as to screw the airbag 11 through the screw 13 and the nut, and then place the LCD screen 14 to be moved and detected on the suction cup 15, so as to support it through multiple groups of suction cups 15, so as to increase the stability of the LCD screen 14 when it is placed horizontally, and then start the second servo motor 6, and the output shaft of the second servo motor 6 drives the bidirectional screw 7 to rotate through the coupling, and drives the concave limit plate 10 through the slide bar 8 and the movable block 9 to squeeze and limit the LCD screen 14, and at the same time, the friction of the LCD screen 14 during the movement can be reduced by the airbag 11 attached to the surface of the LCD screen 14. , vibration, when the LCD screen 14 is limited, it can be moved by the roller 2; if the LCD screen 14 needs to be at an inclined angle for detection, the first servo motor 4 is started, and the first servo motor 4 drives the fixed frame 5 to rotate through the output shaft and the rotating block, thereby driving the LCD screen 14 to flip, and at the same time, the suction cup 15 is always in contact with the surface of the LCD screen 14 under the action of the rotating rod 16 and the telescopic rod 19 to support it; if the LCD screen 14 needs to be detected in other directions, the limit of the LCD screen 14 is cancelled by the second servo motor 6, and the limit block 21 is removed at the same time, and the LCD screen 14 is driven to rotate horizontally by the slider 20, so that the other directions of the LCD screen 14 can be squeezed and limited by the concave limit plate 10. This is the use process of the negative pressure mobile bracket for LCD screen detection.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A negative pressure mobile bracket for liquid crystal screen detection, comprising an operating table (1), wherein the operating table (1) is provided with a plurality of rollers (2) at the bottom, wherein the upper end surface of the operating table (1) is provided with fixed boxes at both ends, wherein a first servo motor (4) is provided in the fixed box, wherein the first servo motor (4) is provided with an output shaft, and the other end of the output shaft is connected to a fixed frame (5), wherein the other end of the fixed frame (5) is provided with a rotating block, and the other end of the rotating block is inserted into the fixed box (3), wherein a second servo motor (6) is provided in the fixed frame (5), and one end of the output shaft of the second servo motor (6) is connected to a bidirectional screw (7) through a coupling, wherein a sliding rod (8) is correspondingly provided at the bottom of the bidirectional screw (7), and movable blocks (9) are respectively inserted at both ends of the bidirectional screw (7) and the sliding rod (8), wherein the upper part of the movable block (9) is connected to a concave limit plate (10) through a connecting rod, wherein: The concave limiting plate (10) is respectively provided with air bags (11) inserted on opposite surfaces, and the air bags (11) are respectively connected to fixing blocks (12) on the outside, and screw rods (13) are inserted on the fixing blocks (12) and the concave limiting plate (10), and a nut is spirally connected to the lower end surface of the screw rod (13); A liquid crystal screen (14) is placed between the concave limiting plates (10), and a plurality of groups of suction cups (15) are provided on the lower end surface of the liquid crystal screen (14), the lower ends of the suction cups (15) are connected to a rotating rod (16), and the rotating rod (16) is inserted into the concave fixing frame (17), and the concave fixing frame (17) is provided with a hollow rod (18) at the lower part, and a telescopic rod (19) is inserted into the hollow rod (18); A slider (20) is provided at the lower end of the telescopic rod (19), and the slider (20) is inserted into a slide groove on the operating table (1). The outer side of the slide groove is provided with a limiting hole on the operating table (1) and the slider (20), respectively, and a limiting block (21) is inserted into the limiting hole.

2. The negative pressure mobile bracket for liquid crystal screen detection according to claim 1, characterized in that: The fixed frame (5) forms a rotating structure through the output shaft, the rotating block and the fixed box (3) under the action of the first servo motor (4), and the concave limiting plate (10) forms a bidirectional limiting sliding structure through the bidirectional screw rod (7), the sliding rod (8) and the movable block (9) under the action of the second servo motor (6).

3. The negative pressure mobile bracket for liquid crystal screen detection according to claim 1, characterized in that: The airbag (11) forms a spiral locking structure through a fixing block (12), a screw rod (13), a nut and a concave limiting plate (10).

4. The negative pressure mobile bracket for liquid crystal screen detection according to claim 1, characterized in that: The suction cup (15) forms a rotating structure with the concave fixing frame (17) via a rotating rod (16), and the inner wall of the hollow rod (18) and the outer wall of the telescopic rod (19) are provided with matching threads.

5. The negative pressure mobile bracket for liquid crystal screen detection according to claim 1, characterized in that: The sliding block (20) forms a sliding structure with the operating table (1) in the sliding groove, and the sliding block (20) forms a locking limit structure with the operating table (1) via a limit block (21).

Images