Pressure resistance detector for liquid crystal display screen

Abstract

The invention discloses a pressure resistance detector for a liquid crystal display screen, relates to the technical field of display screen detection, and aims to solve the problems that in the prior art, glass of the display screen is broken or splashed, an operator is easily injured, broken screen fragments after pressure resistance detection often need to be cleaned, and in the cleaning process, the broken screen fragments cannot be cleaned easily. In order to solve the problem that the hand of a worker is easily scratched by fragments, according to the scheme, the device comprises a shell, an air cylinder is mounted on the inner wall of the top of the shell, a mounting plate is fixed to the bottom of the air cylinder, a pressing plate is connected to the bottom of the mounting plate, a placing mechanism is arranged below the pressing plate, and inclined blocks are arranged on the two sides of the lower portion of the placing mechanism. The liquid crystal display screen is placed in the placing box, the two clamping plates abut against the two sides of the liquid crystal display screen under pushing of the telescopic springs, the liquid crystal display screen is prevented from shaking in the placing box, and then the placing box is inserted into the shell and fixed in an inserted mode.

Description

Technical Field

[0001] The invention relates to the technical field of display screen detection, and in particular to a liquid crystal display screen compression detection machine. Background Art

[0002] Liquid crystal display, abbreviated as LCD in English, is a type of flat panel display. It is used for screen display of televisions and computers. The advantages of this display are low power consumption, small size and low radiation. The liquid crystal display uses a liquid crystal solution in two polarized materials, so that when the current passes through the liquid, the crystals will be rearranged to achieve the purpose of imaging. The LCD display uses two polarized materials, with a liquid crystal solution between them. When the current passes through the liquid, the crystals will be rearranged so that light cannot pass through them. Therefore, each crystal is like a shutter, which can allow light to pass through but also block light. LCD screens need to undergo pressure resistance testing during production.

[0003] Currently, the following defects exist in display screen detection:

[0004] During the test, the display screen glass may crack or splash, which may easily cause harm to the operator. Secondly, after the compression test, the broken screen fragments often need to be cleaned up, and during the cleaning process, the fragments can easily scratch the workers' hands. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a liquid crystal display screen compression testing machine, which overcomes the deficiencies of the prior art and effectively solves the problem that display screen glass cracks or glass splashes in the prior art, which easily cause harm to the operator. Secondly, after the compression test, the broken screen fragments often need to be cleaned, and during the cleaning process, the fragments can easily scratch the workers' hands.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A liquid crystal display screen compression tester comprises a shell, a cylinder is installed on the top inner wall of the shell, a mounting plate is fixed on the bottom of the cylinder, a pressing plate is connected to the bottom of the mounting plate, a placing mechanism is arranged below the pressing plate, inclined blocks are arranged on both sides below the placing mechanism, and a collection box is arranged at the bottom of the two inclined blocks;

[0008] The placement mechanism comprises a placement box, and slide bars are fixed to both outer walls of the placement box, first support rods are fixed to both inner walls of the placement box, and adjustment components are arranged on both sides of the first support rods;

[0009] The adjustment assembly includes a clamping plate, and a connecting block is fixed at the bottom of the clamping plate, a connecting rod is fixed to an outer wall on one side of the connecting block, and a second supporting rod is fixed to one end of the connecting rod, and telescopic parts are connected to both ends of the outer wall on the other side of the clamping plate.

[0010] The clamping plates are pushed to both sides and the LCD screen is placed in the placement box. The clamping plates are pushed by the telescopic spring to make the two clamping plates abut against both sides of the LCD screen to prevent the LCD screen from shaking randomly in the placement box. The placement box is then inserted into the shell, and the insertion rod is inserted into the second fixing block below to plug and fix the placement mechanism. The pressing plate is driven by a cylinder with a set pressing distance to press the LCD screen for detection. When the LCD screen is broken due to pressing, the fragments fall downward through the gap between the first support rod and the second support rod. At the same time, the two clamping plates are pushed closer to each other by the telescopic member to push the fragments on both sides of the placement box to the middle, so that the fragments are collected in the collection box, saving the workers the work of cleaning up the fragments.

[0011] Preferably, mounting holes are provided at the bottom of the mounting plate and the pressure plate, and the mounting plate and the pressure plate are connected and fixed by bolts in the mounting holes. A circular groove is provided at the bottom of the inner wall of the mounting hole at the bottom of the pressure plate, and the inner diameter of the circular groove is larger than the outer diameter of the bolt head.

[0012] The pressure plate is connected to the bottom of the mounting plate by bolts, so that the pressure plate can be easily disassembled and replaced.

[0013] Preferably, guide rails are fixed to both ends of the inner walls on both sides of the shell, and the guide rails and the slide bars form a rolling fit.

[0014] The slide bar is inserted between the guide rails, and the placement mechanism is conveniently inserted into the placement box through the rolling cooperation between the guide rails and the slide bar.

[0015] Preferably, an opening is provided at the bottom of the placement box, and sliding grooves are provided on inner walls at both ends of the opening, and grooves are provided on inner walls at both sides of the opening.

[0016] The placement mechanism is moved in the placement box by means of the provided slide grooves and grooves.

[0017] Preferably, a handle is fixed to the outer wall at one end of the placement box, and first fixing blocks are fixed to both sides of the outer wall at one end of the placement box, and the tops of the first fixing blocks are plugged with plug rods.

[0018] The placing box is pushed and pulled by the pull handle, and the placing mechanism is limited and fixed by the insertion rod inserted in the first fixing block.

[0019] Preferably, sliders are fixed to both ends of the second support rod, and the sliders form a sliding fit with the slide grooves, and the connecting blocks form a sliding fit with the grooves.

[0020] The movement of the second support rod is guided and supported by the sliding block sliding in the sliding groove.

[0021] Preferably, the telescopic member includes a fixed tube, a movable rod plugged into the fixed tube, and a telescopic spring sleeved and movably mounted on the outer wall of the fixed tube.

[0022] The clamping plate is brought into contact with the liquid crystal display screen through the elastic expansion and contraction of the expansion and contraction member, thereby preventing the liquid crystal display screen from shaking randomly in the placement box.

[0023] Preferably, plug blocks are fixed at both ends of the outer wall of one side of the inclined block, and slots that form a plug-in fit with the plug blocks are opened at both ends of the outer walls of both sides of the shell. A second fixed block is fixed to the outer wall of one end of the inclined block, and the second fixed block forms a plug-in fit with the plug rod.

[0024] The inclined blocks are fixed on both sides of the shell body through the insert blocks, and the inclined blocks guide the fallen fragments to slide down and make the fragments fall into the collection box.

[0025] The working principle and beneficial effects of the present invention are:

[0026] The LCD screen is placed in a placement box, and the two clamping plates are pushed by the telescopic spring to abut against two sides of the LCD screen, so that the LCD screen is prevented from shaking randomly in the placement box. The placement box is then inserted into the shell and fixed. When the LCD screen is broken due to pressing, the fragments fall downward through the gaps on the first support rod and the second support rod. At the same time, the two clamping plates are pushed closer to each other by the telescopic member, and the fragments on both sides of the placement box are pushed toward the middle, so that the fragments are collected in the collection box, which saves workers the work of cleaning the fragments and effectively solves the problem of display glass cracking or glass splashing in the prior art, which is easy to cause harm to the operator. Secondly, after the compression test, the broken screen fragments often need to be cleaned up, and in the cleaning process, the fragments can easily scratch the workers' hands. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a liquid crystal display screen compression testing machine proposed by the present invention;

[0028] Figure 2 A schematic diagram of the internal structure of a shell of a liquid crystal display screen compression testing machine proposed by the present invention;

[0029] Figure 3 This is a schematic diagram of the placement mechanism structure of a liquid crystal display screen compression testing machine proposed by the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of an adjustment component of a liquid crystal display screen compression testing machine proposed by the present invention;

[0031] Figure 5 This is a schematic diagram of the oblique block structure of a liquid crystal display screen compression testing machine proposed by the present invention.

[0032] In the figure: 1. shell; 2. cylinder; 3. mounting plate; 4. pressure plate; 5. guide rail; 6. placement mechanism; 7. placement box; 8. slide bar; 9. first support rod; 10. slide groove; 11. adjustment component; 12. groove; 13. pull handle; 14. first fixed block; 15. plug rod; 16. clamp; 17. connecting block; 18. connecting rod; 19. second support rod; 20. slider; 21. telescopic member; 22. fixed tube; 23. movable rod; 24. telescopic spring; 25. oblique block; 26. plug block; 27. second fixed block; 28. collection box. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Example:

[0035] Reference Figure 1-5 A liquid crystal display screen compression tester comprises a housing 1, a cylinder 2 is mounted on the top inner wall of the housing 1, a mounting plate 3 is fixed to the bottom of the cylinder 2, a pressing plate 4 is connected to the bottom of the mounting plate 3, a placing mechanism 6 is arranged below the pressing plate 4, inclined blocks 25 are arranged on both sides below the placing mechanism 6, and a collecting box 28 is arranged at the bottom of the two inclined blocks 25;

[0036] The placement mechanism 6 includes a placement box 7, both sides of the outer wall of the placement box 7 are fixed with slide bars 8, both ends of the inner wall of the placement box 7 are fixed with first support rods 9, and both sides of the first support rod 9 are provided with adjustment components 11;

[0037] The adjustment assembly 11 includes a clamping plate 16, a connecting block 17 is fixed to the bottom of the clamping plate 16, a connecting rod 18 is fixed to one side of the outer wall of the connecting block 17, a second support rod 19 is fixed to one end of the connecting rod 18, and telescopic members 21 are connected to both ends of the outer wall of the other side of the clamping plate 16;

[0038] The bottom of the mounting plate 3 and the pressing plate 4 are both provided with mounting holes, and the mounting plate 3 and the pressing plate 4 are both connected and fixed by bolts in the mounting holes. The bottom of the inner wall of the mounting hole at the bottom of the pressing plate 4 is provided with a circular groove, and the inner diameter of the circular groove is larger than the outer diameter of the bolt head. The pressing plate 4 is connected to the bottom of the mounting plate 3 by bolts, which is convenient for disassembly and replacement of the pressing plate 4. Both ends of the inner wall on both sides of the shell 1 are fixed with guide rails 5, and the guide rails 5 form a rolling fit with the slide bar 8. The slide bar 8 is inserted between the guide rails 5. Through the rolling fit between the guide rails 5 and the slide bar 8, it is convenient to insert the placement mechanism 6 into the placement box 7;

[0039] An opening is provided at the bottom of the placement box 7, and slide grooves 10 are provided at the inner walls at both ends of the opening, and grooves 12 are provided at the inner walls at both sides of the opening. The placement mechanism 6 is moved in the placement box 7 by means of the provided slide grooves 10 and the grooves 12. A pull handle 13 is fixed to the outer wall at one end of the placement box 7, and first fixed blocks 14 are fixed to both sides of the outer wall at one end of the placement box 7. Insertion rods 15 are inserted at the top of the first fixed block 14, and the placement box 7 is pushed and pulled by the pull handle 13, and the placement mechanism 6 is limited and fixed by the insertion rod 15 inserted in the first fixed block 14. Slide blocks 20 are fixed at both ends of the second support rod 19, and the slide block 20 forms a sliding fit with the slide groove 10, and the connecting block 17 forms a sliding fit with the groove 12. The movement of the second support rod 19 is guided and supported by the slide block 20 sliding in the slide groove 10;

[0040] The telescopic member 21 includes a fixed tube 22, a movable rod 23 plugged into the fixed tube 22, and a telescopic spring 24 movably mounted on the outer wall of the fixed tube 22. Through the elastic expansion and contraction of the telescopic member 21, the clamping plate 16 is brought into contact with the liquid crystal display screen to prevent the liquid crystal display screen from shaking randomly in the placement box 7. Insertion blocks 26 are fixed to both ends of the outer wall of one side of the inclined block 25, and slots for plugging with the insertion blocks 26 are provided at both ends of the outer walls of both sides of the shell 1. A second fixed block 27 is fixed to the outer wall of one end of the inclined block 25, and the second fixed block 27 is plugged into the insertion rod 15. The inclined block 25 is fixed to both sides of the shell 1 through the insertion blocks 26, and the inclined block 25 guides the fallen fragments to slide down so that the fragments fall into the collection box 28.

[0041] During operation, the clamping plates 16 are pushed to both sides and the LCD screen is placed in the placement box 7. The clamping plates 16 are pushed by the telescopic spring 24 to make the two clamping plates 16 abut against both sides of the LCD screen to prevent the LCD screen from shaking randomly in the placement box 7. Then the placement box 7 is inserted into the shell 1, and the insertion rod 15 is inserted into the second fixing block 27 below to plug and fix the placement mechanism 6. The cylinder 2 with a set pressing distance drives the pressing plate 4 to press the LCD screen for detection. When the LCD screen is broken by pressing, the fragments fall downward through the gaps on the first support rod 9 and the second support rod 19. At the same time, the two clamping plates 16 are pushed closer to each other by the telescopic member to push the fragments on both sides of the placement box 7 to the middle, thereby collecting the fragments in the collection box 28, saving the workers the work of cleaning the fragments.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A liquid crystal display screen compression tester, comprising a housing (1), characterized in that: A cylinder (2) is installed on the top inner wall of the shell (1), and a mounting plate (3) is fixed to the bottom of the cylinder (2), a pressing plate (4) is connected to the bottom of the mounting plate (3), and a placing mechanism (6) is arranged below the pressing plate (4), inclined blocks (25) are arranged on both sides below the placing mechanism (6), and a collection box (28) is arranged at the bottom of the two inclined blocks (25); The placement mechanism (6) comprises a placement box (7), and the outer walls of both sides of the placement box (7) are fixed with slide bars (8), the inner walls of both ends of the placement box (7) are fixed with first support rods (9), and both sides of the first support rod (9) are provided with adjustment components (11); The adjustment assembly (11) comprises a clamping plate (16), and a connecting block (17) is fixed at the bottom of the clamping plate (16), a connecting rod (18) is fixed to an outer wall on one side of the connecting block (17), and a second supporting rod (19) is fixed to one end of the connecting rod (18), and telescopic parts (21) are connected to both ends of the outer wall on the other side of the clamping plate (16).

2. The liquid crystal display screen compression testing machine according to claim 1, characterized in that: The bottoms of the mounting plate (3) and the pressure plate (4) are both provided with mounting holes, and the mounting plate (3) and the pressure plate (4) are both connected and fixed by bolts in the mounting holes. The bottom of the inner wall of the mounting hole at the bottom of the pressure plate (4) is provided with a circular groove, and the inner diameter of the circular groove is greater than the outer diameter of the bolt head.

3. The liquid crystal display screen compression testing machine according to claim 1, characterized in that: Guide rails (5) are fixed to both ends of the inner walls on both sides of the shell (1), and the guide rails (5) and the slide bars (8) form a rolling fit.

4. The liquid crystal display screen compression testing machine according to claim 1, characterized in that: The bottom of the placement box (7) is provided with an opening, and the inner walls at both ends of the opening are provided with sliding grooves (10), and the inner walls at both sides of the opening are provided with grooves (12).

5. The liquid crystal display screen compression testing machine according to claim 1, characterized in that: A handle (13) is fixed to the outer wall at one end of the placement box (7), and first fixing blocks (14) are fixed to both sides of the outer wall at one end of the placement box (7), and a plug rod (15) is inserted at the top of the first fixing block (14).

6. The liquid crystal display screen compression testing machine according to claim 4, characterized in that: Slide blocks (20) are fixed to both ends of the second support rod (19), and the slide blocks (20) form a sliding fit with the slide groove (10), and the connection blocks (17) form a sliding fit with the groove (12).

7. The liquid crystal display screen compression testing machine according to claim 1, characterized in that: The telescopic member (21) comprises a fixed tube (22), a movable rod (23) plugged into the fixed tube (22), and a telescopic spring (24) sleeved and movably mounted on the outer wall of the fixed tube (22).

8. The liquid crystal display screen compression testing machine according to claim 5, characterized in that: Insertion blocks (26) are fixed at both ends of the outer wall of one side of the inclined block (25), and slots for plugging and fitting with the insertion blocks (26) are provided at both ends of the outer walls of both sides of the shell (1). A second fixing block (27) is fixed to the outer wall of one end of the inclined block (25), and the second fixing block (27) is plugged and fitted with the insertion rod (15).

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