Display screen test tool

Abstract

The utility model relates to the technical field of display screen processing, and discloses a display screen testing tool which comprises a workbench, two supporting plates are fixedly connected to the top of the workbench, a long plate is rotatably connected between the two supporting plates, a lifting assembly abuts against the bottom of the long plate, and a limiting plate and a fixing plate are fixedly connected to the top of the long plate. The lifting assembly is arranged, an electric push rod is started, so that a clamping plate moves towards the surface of the display screen and is matched with a limiting plate to clamp and fix the display screen, then a driving motor is started, a two-way lead screw rotates, then two moving seats move in opposite directions, and the two rotating seats move in the opposite directions under the action of a connecting rod. The long plate is lifted and moved in the vertical direction, so that the abutting plate abuts against the long plate to deflect, and the angle of the long plate is adjusted under the cooperation of the gravity effect, so that the angle of the display screen is adjusted, and the display screen is conveniently tested and observed.

Description

Technical Field

[0001] This utility model relates to the field of display screen processing technology, and in particular to a display screen testing fixture. Background Technology

[0002] Before packaging, the display screen usually needs to be tested. This requires connecting the LCD screen to the test circuit signal and often requires test fixtures to place the LCD screen upright for testing.

[0003] Chinese utility model patent CN207115970U discloses a liquid crystal display screen testing fixture. The fixture features casters under the support legs for easy movement. A second electric telescopic rod drives a pressure plate to quickly position and clamp the liquid crystal display screen. Rubber pads protect the display screen from damage during clamping. A first electric telescopic rod drives a test base, which in turn rotates and flips up for easy testing. A plug provides power, and a data interface socket provides data input for various tests.

[0004] Regarding the aforementioned related technologies, the inventors believe that the following defects exist:

[0005] In actual use, the display screen needs to be clamped and fixed before testing to ensure stability during the test. After the test is over, the clamping and fixing of the display screen can be released. However, since the display screen is attached to the mounting base, it is inconvenient for the user to apply pushing force to the bottom of the display screen, making it difficult to remove the display screen. Pushing it from the side can easily cause scratches or even damage to the display screen. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a display screen testing fixture.

[0007] This utility model is achieved using the following technical solution: a display screen testing fixture, including a worktable, two support plates fixedly connected to the top of the worktable, a long plate rotatably connected between the two support plates, a lifting assembly abutting the bottom of the long plate, a limit plate and a fixing plate fixedly connected to the top of the long plate, an electric push rod penetrating through the interior of the fixing plate, a clamping plate fixedly connected to the output end of the electric push rod, and an ejection assembly installed inside the long plate.

[0008] The lifting assembly includes a stop plate and a bidirectional lead screw. Two rotating seats are fixedly connected to the bottom of the stop plate. A connecting rod is rotatably connected to one end of each rotating seat. Two symmetrically arranged movable seats are threadedly connected to the surface of the bidirectional lead screw. The movable seats are slidably disposed inside the movable slot plate. The bottom of the movable slot plate is fixedly connected to the top of the worktable. The top of the movable seats is rotatably connected to one end of the connecting rod. A drive motor is fixedly connected to one end of the bidirectional lead screw.

[0009] The ejector assembly includes a worm gear, with two worm wheels connected to its surface. A threaded rod is connected through the shaft of each worm wheel. The bottom end of the threaded rod is rotatably connected to the bottom of the inner wall of the long plate. A top block is threadedly connected to the surface of the threaded rod. Two drive gears are sleeved on the surface of the worm gear. A drive gear plate is meshed with the surface of the drive gears. An L-shaped stop rod is fixedly connected to one end of the drive gear plate.

[0010] As a further improvement to the above solution, protective covers are fixedly connected to both the front and back of the long plate. The two ends of the worm gear are rotatably connected to the inner walls of the two protective covers respectively. The right side of the inner wall of the protective cover and the right side of the drive gear plate are connected by two reset spring rods to facilitate the reset operation of the drive gear plate.

[0011] As a further improvement to the above solution, a straight groove is provided on the top of the inner wall of the protective cover, and the drive tooth plate is slidably disposed inside the straight groove to ensure the normal movement of the drive tooth plate.

[0012] As a further improvement to the above solution, a limiting plate is sleeved on the surface of the L-shaped abutment. The right side of the limiting plate and the left side of the protective cover are connected by a limiting spring sleeved on the outside of the L-shaped abutment, which facilitates the reset of the L-shaped abutment.

[0013] As a further improvement to the above solution, a square groove is provided on the top of the long plate, and the top block is slidably disposed inside the square groove to ensure the normal lifting and lowering movement of the top block.

[0014] As a further improvement to the above solution, a fixing ring is sleeved on the surface of the electric push rod, and the surface of the fixing ring is fixedly connected to the surface of the long plate, ensuring the normal operation of the electric push rod.

[0015] As a further improvement to the above solution, the length of the clamping plate is longer than the length of the long plate in the front-back direction, which facilitates the abutment operation of the L-shaped abutment rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model, by setting up a lifting component, allows the display screen to be placed above the long plate during use. Then, the electric push rod is activated, causing the clamping plate to move towards the surface of the display screen. This, combined with the limiting plate, clamps and fixes the display screen. Next, the drive motor is activated, causing the bidirectional lead screw to rotate, which in turn causes the two moving seats to move in opposite directions. Under the action of the connecting rod, the two rotating seats move vertically, causing the abutment plate to deflect against the long plate. With the help of gravity, the angle of the long plate is adjusted, thereby adjusting the angle of the display screen, facilitating testing and observation of the display screen.

[0018] 2. This utility model, by setting up an ejector assembly, activates the electric push rod after the display screen completes testing, causing the clamping plate to move towards the fixed plate position. During this process, the clamping plate first abuts against two L-shaped abutments, which in turn pulls the drive gear plate. The drive gear rotates under the action of the drive gear plate, causing the worm gear to rotate. Under the action of the worm gear, the two worm wheels rotate with the two threaded rods, causing the top block to move outward of the long plate, thereby lifting the display screen a small distance. This makes it easier for the user to apply force from below the display screen, making it easier and faster to remove the display screen. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the abutment plate, the bidirectional lead screw, and the rotating seat of this utility model;

[0021] Figure 3 This is a structural schematic diagram of the long plate, fixing plate, and limiting plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the drive gear, drive tooth plate, and L-shaped abutment of this utility model.

[0023] Explanation of key symbols:

[0024] 1. Workbench; 2. Support plate; 3. Long plate; 4. Fixed plate; 5. Limiting plate; 6. Electric push rod; 7. Clamping plate; 8. Abutment plate; 9. Two-way lead screw; 10. Rotating seat; 11. Connecting rod; 12. Moving seat; 13. Moving slot plate; 14. Worm gear; 15. Worm wheel; 16. Threaded rod; 17. Top block; 18. Drive gear; 19. Drive gear plate; 20. L-shaped abutment rod. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0026] Please combine Figure 1-4 This embodiment of a display screen testing fixture includes a workbench 1. Two support plates 2 are fixedly connected to the top of the workbench 1. A long plate 3 is rotatably connected between the two support plates 2. A lifting assembly is abutted against the bottom of the long plate 3. A limit plate 5 and a fixing plate 4 are fixedly connected to the top of the long plate 3. An electric push rod 6 is connected through the inside of the fixing plate 4. A fixing ring is sleeved on the surface of the electric push rod 6. The surface of the fixing ring is fixedly connected to the surface of the long plate 3 to ensure the normal operation of the electric push rod 6. A clamping plate 7 is fixedly connected to the output end of the electric push rod 6. The length of the clamping plate 7 is longer than the front-back length of the long plate 3 to facilitate the abutment work of the L-shaped abutment rod 20. An ejection assembly is installed inside the long plate 3.

[0027] The lifting assembly is used to adjust the deflection angle of the device display screen during testing. The lifting assembly includes a stop plate 8 and a bidirectional lead screw 9. Two rotating seats 10 are fixedly connected to the bottom of the stop plate 8. A connecting rod 11 is rotatably connected to one end of the rotating seat 10. Two symmetrically arranged movable seats 12 are threadedly connected to the surface of the bidirectional lead screw 9. The movable seats 12 are slidably disposed inside the movable slot plate 13. The bottom of the movable slot plate 13 is fixedly connected to the top of the workbench 1. The top of the movable seats 12 is rotatably connected to one end of the connecting rod 11. A drive motor is fixedly connected to one end of the bidirectional lead screw 9.

[0028] The ejector assembly is used to eject the display screen for easy removal. The ejector assembly includes a worm gear 14, with two worm wheels 15 connected to its surface. A threaded rod 16 is threaded through the shaft of each worm wheel 15. The bottom end of the threaded rod 16 is rotatably connected to the bottom of the inner wall of the long plate 3. A top block 17 is threadedly connected to the surface of the threaded rod 16. A square groove is formed on the top of the long plate 3, and the top block 17 is slidably positioned inside the square groove, ensuring normal lifting and lowering movement of the top block 17. Two drive gears 18 are sleeved on the surface of the worm gear 14, and drive gear plates 19 are meshed with the surfaces of the drive gears 18. The front and back of the long plate 3 are fixedly connected to... The protective cover and the two ends of the worm gear 14 are rotatably connected to the inner walls of the two protective covers respectively. A straight groove is opened at the top of the inner wall of the protective cover. The drive gear plate 19 is slidably set inside the straight groove to ensure the normal movement of the drive gear plate 19. The right side of the inner wall of the protective cover and the right side of the drive gear plate 19 are connected by two reset spring rods to facilitate the reset of the drive gear plate 19. One end of the drive gear plate 19 is fixedly connected to an L-shaped abutment 20. A limit plate is sleeved on the surface of the L-shaped abutment 20. The right side of the limit plate and the left side of the protective cover are connected by a limit spring sleeved on the outside of the L-shaped abutment 20 to facilitate the reset of the L-shaped abutment 20.

[0029] The implementation principle of a display screen testing fixture in this application embodiment is as follows: During use, the display screen is placed above the long plate 3, and then the electric push rod 6 is activated, causing the clamping plate 7 to move towards the surface of the display screen. The limiting plate 5 is used to clamp and fix the display screen. Then, the drive motor is activated, causing the bidirectional lead screw 9 to rotate, which in turn causes the two moving seats 12 to move in opposite directions. Under the action of the connecting rod 11, the two rotating seats 10 move up and down in the vertical direction, thereby causing the abutment plate 8 to abut against the long plate 3 and deflect. With the help of gravity, the angle of the long plate 3 is adjusted, thereby adjusting the angle of the display screen, which facilitates the testing and observation of the display screen.

[0030] After the display screen completes the test, the electric push rod 6 is activated, causing the clamping plate 7 to move towards the fixed plate 4. During this process, the clamping plate 7 first moves against the two L-shaped abutments 20, which in turn pulls the drive gear plate 19 to move. The drive gear 18 rotates under the action of the drive gear plate 19, which in turn causes the worm gear 14 to rotate. The two worm wheels 15 rotate under the action of the worm gear 14, causing the two threaded rods 16 to rotate, which causes the top block 17 to move outward of the long plate 3, thereby lifting the display screen a small distance, making it easier for the user to apply force from below the display screen, and making it easier and faster to remove the display screen.

[0031] During the next display test, the electric push rod 6 is activated, causing the clamping plate 7 to move continuously toward the display surface. During this process, under the action of the reset spring rod and the limit spring, the L-shaped abutment 20 gradually returns to its initial position, the top block 17 gradually returns to its initial position, and the display adheres to the long plate 3.

[0032] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A display screen testing fixture, characterized in that, The workbench (1) is fixedly connected to two support plates (2) at the top. A long plate (3) is rotatably connected between the two support plates (2). A lifting assembly is abutted against the bottom of the long plate (3). A limit plate (5) and a fixing plate (4) are fixedly connected to the top of the long plate (3). An electric push rod (6) is connected through the inside of the fixing plate (4). A clamping plate (7) is fixedly connected to the output end of the electric push rod (6). An ejection assembly is installed inside the long plate (3). The lifting assembly includes a contact plate (8) and a bidirectional lead screw (9). The bottom of the contact plate (8) is fixedly connected to two rotating seats (10). One end of the rotating seat (10) is rotatably connected to a connecting rod (11). The surface of the bidirectional lead screw (9) is threadedly connected to two symmetrically arranged movable seats (12). The movable seats (12) are slidably disposed inside the movable slot plate (13). The bottom of the movable slot plate (13) is fixedly connected to the top of the workbench (1). The top of the movable seats (12) is rotatably connected to one end of the connecting rod (11). One end of the bidirectional lead screw (9) is fixedly connected to a drive motor. The ejector assembly includes a worm (14), with two worm wheels (15) connected to the surface of the worm (14). A threaded rod (16) is connected through the shaft of the worm wheel (15). The bottom end of the threaded rod (16) is rotatably connected to the bottom of the inner wall of the long plate (3). A top block (17) is threadedly connected to the surface of the threaded rod (16). Two drive gears (18) are sleeved on the surface of the worm (14). A drive gear plate (19) is meshed on the surface of the drive gears (18). An L-shaped push rod (20) is fixedly connected to one end of the drive gear plate (19).

2. The display screen testing fixture as described in claim 1, characterized in that, The front and back of the long plate (3) are fixedly connected with protective covers. The two ends of the worm gear (14) are rotatably connected to the inner walls of the two protective covers respectively. The right side of the inner wall of the protective cover and the right side of the drive gear plate (19) are connected by two reset spring rods.

3. The display screen testing fixture as described in claim 2, characterized in that, A straight groove is provided on the top of the inner wall of the protective cover, and the drive tooth plate (19) is slidably disposed inside the straight groove.

4. The display screen testing fixture as described in claim 1, characterized in that, The surface of the L-shaped abutment (20) is fitted with a limiting disc, and the right side of the limiting disc and the left side of the protective cover are connected by a limiting spring fitted on the outside of the L-shaped abutment (20).

5. The display screen testing fixture as described in claim 1, characterized in that, The top of the long plate (3) is provided with a square groove, and the top block (17) is slidably disposed inside the square groove.

6. The display screen testing fixture as described in claim 1, characterized in that, The surface of the electric push rod (6) is fitted with a fixing ring, and the surface of the fixing ring is fixedly connected to the surface of the long plate (3).

7. The display screen testing fixture as described in claim 1, characterized in that, The length of the clamping plate (7) is longer than the length of the long plate (3) in the front-back direction.

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