A mine-used LCD screen detection device

Abstract

The present invention discloses a liquid crystal screen detection device for mining, comprising a base, a detection platform connected to the base, the detection platform and the base are connected by a flip mechanism, and a clamping mechanism is connected above the detection platform; the flip mechanism also includes: connection blocks fixedly installed on both sides of the rear end of the detection platform, the connection blocks are connected with mounting columns, the connection blocks are rotatably connected to the mounting columns, and the mounting columns are fixedly installed on the inner side wall of the base. The flipping of the detection device is realized to avoid the phenomenon of incomplete detection of the liquid crystal screen during detection; the line position is fixed to protect the circuit itself.

Description

Technical Field

[0001] The invention relates to the field of liquid crystal screen detection, and in particular to a liquid crystal screen detection device for mining. Background Art

[0002] Mining LCD screens are LCD displays used in industry, with a variety of display sizes and installation methods. They are also different from ordinary LCD displays, and can adapt to extreme environments, operate stably, and have long service life. Unlike consumer displays, which are mainly used for direct viewing, for industrial-grade displays, users may not be viewing at the best distance or under ideal lighting conditions, so they have higher requirements for contrast, brightness, viewing angle, color, etc.

[0003] The known back layout design of the LCD screen installs control components and circuits, etc. The existing detection device usually supports the back periphery of the LCD screen through a frame, the front of the LCD panel faces upward, and the circuits extending from the back connect the detection device and the power supply device.

[0004] Prior art, such as a mining LCD screen detection device disclosed in patent document CN107390390A, uses a clamping mechanism to match the mining LCD screen on the base mechanism, and the circuit extending from the back cooperates with the input and output electrical port components to connect the detection control box. Patent document CN114227581A discloses a flip fixture for LCD screen detection, which can reduce the clamping area of ​​the LCD screen through a clamping device, and the clamping position can be moved during LCD screen detection. In short, the clamping position clamps the two sides of the LCD screen to achieve flipping.

[0005] However, the inventors of this application found that the above technology has at least the following technical problems in the process of implementing the technical solution of the invention in the embodiment of this application:

[0006] Patent document CN107390390A discloses a mining LCD screen detection device, which has a fixed structure. Firstly, it is impossible to flip the LCD screen to observe the visual effect from multiple angles. Secondly, the line connector of the LCD screen is usually bent into an L-shape toward the front of the screen panel for easy installation in the equipment. During the detection, the line extending from the back of the LCD screen needs to be twisted and pressed on the connector, which can easily cause damage to the line due to twisting.

[0007] Although patent document CN114227581A discloses a flip fixture for LCD screen detection, the line extending from the back of the LCD screen is easily bent due to rotation during the circumferential flipping process, thereby damaging the line. In addition, the flipping angle is limited by the line extending from the back of the LCD screen itself. Summary of the invention

[0008] The embodiment of the present application provides a mining LCD screen detection device, which solves the problem in the prior art that the circuit is easily damaged due to the flipping of the detection device, realizes the flipping of the detection device, and avoids the phenomenon of incomplete detection of the LCD screen during detection; and realizes the fixing of the circuit position, which protects the circuit itself.

[0009] The embodiment of the present application provides a liquid crystal screen detection device for mining, comprising a base, a detection platform connected to the base, the detection platform and the base are connected by a flip mechanism, and a clamping mechanism is connected above the detection platform;

[0010] The flip mechanism also includes: connecting blocks fixedly installed on both sides of the rear end of the detection platform, the connecting blocks are connected to mounting columns, the connecting blocks are rotatably connected to the mounting columns, and the mounting columns are fixedly installed on the inner side wall of the base.

[0011] In a preferred embodiment of the present invention, the base is a U-shaped frame structure for carrying a bracket of the detection platform; the detection platform is used to detachably carry the mining LCD screen to be detected.

[0012] In a preferred embodiment of the present invention, the connecting block is a gear structure, the connecting block is connected to a servo motor, the output gear on the output shaft of the servo motor is adapted to the gear structure of the connecting block, and the automatic flipping of the detection table is achieved by the drive of the servo motor.

[0013] In a preferred embodiment of the present invention, a convex through hole is provided on the detection platform, and a convex edge is provided inwardly extending around the bottom of the convex through hole.

[0014] In a preferred embodiment of the present invention, the clamping mechanism comprises a mounting block, the mounting block is mounted on the top of the detection platform, rotating shafts are fixedly mounted on both sides of the mounting block, and the mounting block is rotatably connected to a pressing plate via the rotating shafts.

[0015] In a preferred embodiment of the present invention, an adsorption mechanism is installed on one side of the top of the pressing plate, and the adsorption mechanism includes a cross bar, a cylinder fixedly connected to both ends of the cross bar, and a first magnet arranged at the bottom end of the cylinder;

[0016] The adsorption mechanism is mounted on the pressing plate by sliding up and down two linear guide rails with sleeves provided on the crossbar;

[0017] A pressure head is arranged on the crossbar between the linear guide rails, and a through hole is arranged on the pressing plate corresponding to the pressure head;

[0018] A notch is arranged on the top of the pressing plate, and the notch corresponds to the cylinder.

[0019] In a preferred embodiment of the present invention, two second magnets are installed on the top of the detection platform, the second magnets correspond to the first magnet to form an adsorption connection, a third magnet is installed on the top of the detection platform, and a fourth magnet is arranged on the pressing plate corresponding to the third magnet; a flexible plastic sheet is connected to the top of the detection platform.

[0020] In a preferred embodiment of the present invention, the pressure head is composed of a sleeve, a telescopic cylinder, a spring and a cylinder cap.

[0021] In a preferred embodiment of the present invention, a mounting frame is installed at the bottom of the detection platform, a rotating bolt is threadedly connected to the mounting frame, a support plate is rotatably connected to the top of the rotating bolt, a pressure detection component and an external electrical device are installed on the top of the support plate, and a strip board and an interface are installed on the external electrical device through a PCB circuit board;

[0022] The external electrical equipment is electrically connected to the external electric control program detection control box and is used for powering the mining LCD screen to be tested and driving the detection program.

[0023] In a preferred embodiment of the present invention, the rear parts of the two side walls of the U-shaped frame of the base form a 150-degree ridge, and the base is also provided with a vertical ridge with a top surface forming a 150-degree angle.

[0024] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0025] 1. Due to the use of a flipping mechanism, the problem that the detection device is easily damaged due to flipping is effectively solved, thereby realizing the flipping of the detection device and avoiding the phenomenon of incomplete detection of the LCD screen during detection; the line position is fixed, which plays a protective role on the circuit itself.

[0026] 2. Due to the use of flexible plastic sheets and pressure heads, after the circuit and interface of the mining LCD screen to be tested are connected, it can not only ensure that the two are tightly connected, but also can start the buffer protection through the spring in the flexible plastic sheet and the pressure head to avoid violent force.

[0027] 3. Since the flipping mechanism can be flipped within a range of 150 degrees under the limiting effect of the spine, the LCD screen to be tested, which is set in the test table and has a convex through hole, can also be observed within a range of 150 degrees. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure in the embodiment of the present application;

[0029] Figure 2 This is a schematic diagram of the flipping mechanism structure in the embodiment of the present application;

[0030] Figure 3 This is a schematic diagram of the structure of the clamping mechanism in the embodiment of the present application;

[0031] Figure 4 This is a schematic diagram of adsorption in the embodiment of this application;

[0032] Figure 5 It is a schematic diagram of the local structure in the embodiment of the present application. DETAILED DESCRIPTION

[0033] The embodiment of the present application provides a mining LCD screen detection device, which solves the problem in the prior art that the circuit is easily damaged due to the flipping of the detection device, realizes the flipping of the detection device, and avoids the phenomenon of incomplete detection of the LCD screen during detection; and realizes the fixing of the circuit position, which protects the circuit itself.

[0034] The technical solution in the embodiment of the present application is to solve the above-mentioned problem of bending or twisting of the line due to flipping, and the overall idea is as follows:

[0035] The slot on the test platform for carrying the LCD screen to be tested is opened into a convex through hole, and the LCD panel to be tested is placed downward and the back is upward in the convex through hole, and the convex edge of the convex through hole carries the periphery of the panel to achieve support. The flip mechanism drives the test platform to flip, and the screen is sensed from the bottom from a small angle to a large angle to achieve detection.

[0036] Since the LCD panel to be detected is arranged downward, the line interface extending from the back thereof can be directly connected to the interface in a forward direction, thus avoiding the twisting of the line.

[0037] By fixing the pressing plate, the LCD screen to be detected and the circuit are flipped as a whole when flipping, thereby effectively solving the problem of circuit bending or twisting.

[0038] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] like Figure 1-2 As shown, the embodiment of the present application provides a liquid crystal screen detection device for mining, including a base 1, a detection platform 2 is connected to the base 1, the detection platform 2 and the base 1 are connected via a flip mechanism 3, and a clamping mechanism 4 is connected above the detection platform 2;

[0040] The flip mechanism 3 also includes: connecting blocks 303 fixedly installed on both sides of the rear end of the detection platform 2, and the connecting blocks 303 are connected to mounting columns 304. The connecting blocks 303 are rotatably connected to the mounting columns 304, and the mounting columns 304 are fixedly installed on the inner wall of the base 1.

[0041] The base 1 is a U-shaped frame structure, which is used to carry the bracket of the detection platform 2; the detection platform 2 is used to detachably carry the mining LCD screen to be detected.

[0042] The flip mechanism 3 includes a handle 301, on which a connecting column 302 is fixedly mounted. One end of the connecting column 302 away from the handle 301 is connected to the side wall of the detection platform 2. When the handle 301 is manipulated, the detection platform 2 can be driven to move through the arranged connecting column 302.

[0043] A 150-degree back ridge 101 is formed at the rear of the two side walls of the U-shaped frame of the base, and a vertical ridge 102 with a top surface forming a 150-degree angle is also provided on the base.

[0044] The working principle of the present invention is as follows: when inspecting the LCD screen to be inspected, the LCD screen to be inspected is first placed on the inspection table 2 and then fixed. Since a connecting column 302 is connected to one side of the inspection table 2 and a handle 301 is installed on the connecting column 302, when the staff manipulates the handle 301, the inspection table 2 can be driven to move through the set connecting column 302. Since connecting blocks 303 are installed on both sides of the rear end of the inspection table 2 and the connecting blocks 303 are rotatably connected to the mounting columns 304, when the inspection table 2 moves, the connecting blocks 303 and the mounting columns 304 are rotatably connected, so that the inspection table 2 can be flipped through the rotational connection, thereby driving the LCD screen on the inspection table 2 to flip. The present invention can drive the LCD screen to be inspected to flip through the set flipping mechanism 3, which is convenient for the staff to conduct a comprehensive inspection of the LCD screen to be inspected, thereby improving work efficiency.

[0045] In another preferred embodiment of the present invention, the connecting block 303 is a gear structure, the connecting block 303 is connected to a servo motor, the output gear on the output shaft of the servo motor is adapted to the gear structure of the connecting block 303, and the automatic flipping of the detection platform 2 is achieved by the drive of the servo motor.

[0046] The testing platform 2 is provided with a convex through hole 201, and a convex edge 202 is extended inwardly from the bottom periphery of the convex through hole 201. The LCD panel to be tested is placed downwardly into the convex through hole 201, and the convex edge 202 is extended inwardly from the bottom periphery of the convex through hole 201 to support the periphery of the LCD panel to be tested.

[0047] like Figure 3-4 As shown, the clamping mechanism 4 includes a mounting block 401 , which is mounted on the top of the testing platform 2 , and a rotating shaft 402 is fixedly mounted on both sides of the mounting block 401 , and the mounting block 401 is rotatably connected to a pressing plate 403 via the rotating shaft 402 .

[0048] In a preferred embodiment of the present invention, an adsorption mechanism 404 is installed on one side of the top of the pressing plate 403, and the adsorption mechanism 404 includes a crossbar 4041, a cylinder 4042 fixedly connected to both ends of the crossbar 4041, and a first magnet 4043 arranged at the bottom end of the cylinder 4042;

[0049] The adsorption mechanism 404 is installed on the pressing plate 403 by sliding up and down through two linear guide rails 4045 with sleeves 4044 arranged on the cross bar 4041; the adsorption mechanism 404 can slide up and down through the linear guide rails 4045, and the sleeve 4044 limits the sliding distance of the adsorption mechanism 404, avoiding large vibrations due to excessive distance during adsorption, and can effectively protect the LCD screen to be tested from damage due to excessive vibrations.

[0050] A pressing head 4046 is disposed on the crossbar 4041 between the linear guide rails 4045 , and a through hole 4031 is disposed on the pressing plate 403 corresponding to the pressing head 4046 ; a notch 405 is disposed on the top of the pressing plate 403 , and the notch 405 corresponds to the cylinder 4042 .

[0051] The pressing head 4046 presses downwardly onto the line plug of the LCD screen to be tested on the interface 13 through the through hole 4031, so that it is tightly engaged to ensure full contact.

[0052] In a preferred embodiment of the present invention, two second magnets 6 are installed on the top of the detection platform 2. The second magnets 6 correspond to the first magnets 4043 to form an adsorption connection, so that the adsorption mechanism 404 drives the pressing plate 403 to press on the back of the LCD screen to be detected.

[0053] A third magnet 7 is installed on the top of the detection platform 2, and a fourth magnet 406 is arranged on the pressing plate 403 corresponding to the third magnet 7 to further stabilize the pressing plate 403.

[0054] A flexible plastic sheet 80 is connected to the top of the testing platform 2 to cover the line plug after the line plug of the LCD screen to be tested is inserted into the interface 13 to avoid damage to the plug and the interface 13 due to excessive pressure, resulting in poor contact.

[0055] The detection platform 2 is provided with a hole corresponding to the interface 13 .

[0056] The pressure head 4046 is composed of a sleeve 461, a telescopic cylinder 462, a spring 463 and a cylinder cap 464. The sleeve 461 is a through cylinder with two ends open, and one end has an edge extending radially inward. The telescopic cylinder 462 is open at one end and sealed at the other end, and the open end is provided with an outer edge extending outward. During assembly, the telescopic cylinder 462 is inserted into the sleeve 461 from the other end of the sleeve 461, and the outer edge of the telescopic cylinder 462 is limited by the edge of the sleeve 461. Then, the spring 463 is sequentially extended through the sleeve 461 to the sealed end of the telescopic cylinder 462, and then the other end of the sleeve 461 is blocked by the cylinder cap 464.

[0057] As the pressing plate 403 is pressed against the back of the LCD screen to be tested, under the action of the spring 463, the sealed end of the telescopic cylinder 462 presses against the flexible plastic sheet 80 covering the line plug of the LCD screen to be tested inserted into the interface 13, releasing elastic pressure on the plug and the interface 13 to ensure full contact.

[0058] like Figure 5 As shown, a mounting frame 5 is installed at the bottom of the detection platform 2, a rotating bolt 11 is threadedly connected to the mounting frame 5, a support plate 8 is rotatably connected to the top of the rotating bolt 11, a pressure detection component 9 and an external electrical device 10 are installed on the top of the support plate 8, and a strip board 12 and an interface 13 are installed on the external electrical device 10 through a PCB circuit board;

[0059] The external electrical device 10 is electrically connected to the external electric control program detection control box, and is used for powering the mining LCD screen to be tested and driving the detection program.

[0060] Before the covering pressing plate 403 is pressed against the back of the LCD screen to be detected, the pressure can be monitored by the pressure detection component 9 and the pressure can be adjusted by rotating the bolt 11.

[0061] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0062] 1. Due to the use of a flipping mechanism, the problem that the detection device is easily damaged due to flipping is effectively solved, thereby realizing the flipping of the detection device and avoiding the phenomenon of incomplete detection of the LCD screen during detection; the line position is fixed, which plays a protective role on the circuit itself.

[0063] 2. Due to the use of flexible plastic sheets and pressure heads, after the circuit and interface of the mining LCD screen to be tested are connected, it can not only ensure that the two are tightly connected, but also can start the buffer protection through the spring in the flexible plastic sheet and the pressure head to avoid violent force.

[0064] 3. Since the flipping mechanism can be flipped within a range of 150 degrees under the limiting effect of the spine, the LCD screen to be tested, which is set in the test table and has a convex through hole, can also be observed within a range of 150 degrees.

[0065] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0066] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A liquid crystal screen detection device for mining, comprising a base (1), characterized in that: The base (1) is connected to a detection platform (2), the detection platform (2) and the base (1) are connected via a flip mechanism (3), and a clamping mechanism (4) is connected above the detection platform (2); The turning mechanism (3) further comprises: connecting blocks (303) fixedly mounted on both sides of the rear end of the detection platform (2), the connecting blocks (303) being connected to mounting columns (304), the connecting blocks (303) being rotatably connected to the mounting columns (304), and the mounting columns (304) being fixedly mounted on the inner side wall of the base (1); The base (1) is a U-shaped frame structure, used for carrying a bracket of the detection platform (2); the detection platform (2) is used for detachably carrying a mining liquid crystal screen to be detected; The rear part of the two side walls of the U-shaped frame of the base (1) forms a 150-degree back ridge (101), and the base (1) is also provided with a vertical ridge (102) with a top surface at 150 degrees; The clamping mechanism (4) comprises a mounting block (401), wherein the mounting block (401) is mounted on the top of the detection platform (2), and rotating shafts (402) are fixedly mounted on both sides of the mounting block (401), and the mounting block (401) is rotatably connected to a pressing plate (403) via the rotating shafts (402); The detection platform (2) is provided with a convex through hole (201), and a convex edge (202) is provided inwardly extending from the bottom periphery of the convex through hole (201); the liquid crystal panel to be detected is placed downwardly into the convex through hole (201), and the convex edge (202) is provided inwardly extending from the bottom periphery of the convex through hole (201) to support the periphery of the liquid crystal panel to be detected.

2. A mining LCD screen detection device according to claim 1, characterized in that: An adsorption mechanism (404) is installed on one side of the top of the pressing plate (403), and the adsorption mechanism (404) comprises a crossbar (4041), a cylinder (4042) fixedly connected to both ends of the crossbar (4041), and a first magnet (4043) arranged at the bottom end of the cylinder (4042); The adsorption mechanism (404) is slidably mounted on the pressing plate (403) via two linear guide rails (4045) with sleeves (4044) disposed on the crossbar (4041) up and down. A pressure head (4046) is provided on the crossbar (4041) between the linear guide rails (4045), and a through hole (4031) is provided on the pressing plate (403) corresponding to the pressure head (4046); A notch (405) is provided at the top of the pressing plate (403), and the notch (405) corresponds to the cylinder (4042).

3. A mining LCD screen detection device according to claim 2, characterized in that: Two second magnets (6) are installed on the top of the detection platform (2), and the second magnets (6) correspond to the first magnet (4043) to form an adsorption connection. A third magnet (7) is installed on the top of the detection platform (2), and a fourth magnet (406) is arranged on the pressing plate (403) corresponding to the third magnet (7); and a flexible plastic sheet (80) is connected to the top of the detection platform (2).

4. A mining LCD screen detection device according to claim 3, characterized in that: The pressure head (4046) is composed of a sleeve (461), a telescopic cylinder (462), a spring (463) and a cylinder cap (464).

5. A mining LCD screen detection device according to claim 4, characterized in that: A mounting frame (5) is installed at the bottom of the detection platform (2), a rotating bolt (11) is threadedly connected to the mounting frame (5), a support plate (8) is rotatably connected to the top of the rotating bolt (11), a pressure detection component (9) and an external electrical device (10) are installed on the top of the support plate (8), and a socket board (12) and an interface (13) are installed on the external electrical device (10) through a PCB circuit board.

6. A mining LCD screen detection device according to claim 5, characterized in that: The external electrical device (10) is electrically connected to an external electric control program detection control box and is used for powering the mining liquid crystal screen to be tested and driving the detection program.

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