Multi-collision prevention testing device for flexible screen testing

Abstract

The utility model relates to the technical field of flexible screen testing devices, and discloses a multi-impact-resistant testing device for flexible screen testing, which comprises a rack, a placing platform arranged in the rack, electric slide rails and a clamp arranged on the placing platform, an impact block arranged between the electric slide rails on two sides, and a pressure sensor arranged on the placing platform, the pressure sensor is arranged on the clamp, an electromagnetic pin is further arranged on the placing platform, the electromagnetic pin is electrically connected with the pressure sensor, and the pressure sensor can generate a signal to control the electromagnetic pin to be electrified and move upwards after detecting that impact is generated; the arrangement of the electromagnetic pin satisfies that when the electromagnetic pin is in a power-off state, the top of the electromagnetic pin does not interfere with the motion path of the to-be-tested flexible screen impacted by the impact block, and when the electromagnetic pin is in a power-on state, the top of the electromagnetic pin can interfere with the motion path of the to-be-tested flexible screen impacted by the impact block. The impact test device has the advantage of ensuring the accuracy of impact test results.

Description

Technical Field

[0001] The utility model relates to a test device for flexible screens that can prevent multiple impacts and belongs to the technical field of flexible screen test devices. Background Art

[0002] Flexible materials have excellent performance and can be flipped and folded to reduce product area. They have been widely used in electronic products, such as flexible screens for mobile phones and TVs. However, electronic products have a long service life and high quality requirements. In order to ensure that the processed flexible screens can meet the needs, flexible screens usually need to be tested during processing and production.

[0003] Common tests for flexible screens include impact tests. At present, the test device for impact tests on flexible screens includes a placing platform, an electric slide rail is arranged above the placing platform, and an impact member is slidably installed on the electric slide rail by setting a slider. When an impact test is needed, the flexible screen to be tested is installed on the placing platform. Thereafter, the electric slide rail is used to drive the slider to climb, and the impact member is moved to the required horizontal height. Then, the electric slide rail is powered off. At this time, the slider loses the electric thrust of the electric slide rail, so that the impact member will perform free fall motion under the action of gravity, thereby hitting the flexible screen to be tested installed on the placing platform, so that the flexible screen to be tested can be impact tested.

[0004] However, since the flexible screen itself has elasticity, after the impact piece freely falls and hits the flexible screen to be tested, the impact piece will bounce up under the influence of the elastic force of the flexible screen to be tested as well as the action force, reaction force and other factors, and then fall again to cause a second or more impact on the flexible screen to be tested, which may have a greater impact on the accuracy of the impact test results. Utility Model Content

[0005] In order to solve the above problems existing in the prior art, the utility model provides a test device for flexible screen testing that is resistant to multiple impacts.

[0006] The technical solution of the utility model is as follows:

[0007] A test device for testing a flexible screen and preventing multiple impacts, comprises a frame, a placing platform is arranged inside the frame, the placing platform is provided with symmetrically arranged electric slide rails and a fixture for clamping the flexible screen to be tested, a mounting plate is slidably connected between the electric slide rails on both sides by setting a slider, an impact block is arranged on the bottom surface of the mounting plate, a pressure sensor is also arranged on the placing platform, the pressure sensor is arranged on the fixture, an electromagnetic pin is also arranged on the placing platform, the electromagnetic pin is electrically connected to the pressure sensor, and the pressure sensor can generate a signal to control the electromagnetic pin to be energized and move upward after detecting that an impact occurs; the electromagnetic pin is arranged so that when the electromagnetic pin is in a power-off state, the top of the electromagnetic pin will not interfere with the movement path of the impact block impacting the flexible screen to be tested, and when the electromagnetic pin is in a power-on state, the top of the electromagnetic pin can interfere with the movement path of the impact block impacting the flexible screen to be tested.

[0008] Among them, the first positioning blocks are symmetrically arranged on the bottom surface of the mounting plate, and the second positioning blocks are symmetrically arranged on the top surface of the placing platform. When the impact block hits the flexible screen to be tested, the first positioning blocks on both sides are fitted with the second positioning blocks on the corresponding sides.

[0009] Among them, the bottom surfaces of the first positioning blocks on both sides are provided with positioning protrusions with conical structures, and the top surfaces of the second positioning blocks on both sides are provided with positioning grooves which are adapted to the corresponding side positioning protrusions. When the impact block impacts the flexible screen to be tested, the positioning protrusions on both sides are inserted into the corresponding side positioning grooves.

[0010] Among them, placement holes are opened inwardly on the positioning grooves on both sides, and electromagnetic pins are arranged in the placement holes on both sides. When the electromagnetic pin is in the power-off state, the top of the electromagnetic pin is retracted into the placement hole, and when the electromagnetic pin is in the power-on state, the top of the electromagnetic pin is extended out of the placement hole.

[0011] The utility model has the following beneficial effects:

[0012] The utility model prevents the occurrence of an impact test on the flexible screen by arranging a pressure sensor and an electromagnetic pin on the prevention platform. When the impact test is performed on the flexible screen to be tested, the impact block impacts the flexible screen to be tested under the action of its own weight and bounces upward under the influence of the elastic force of the flexible screen to be tested and the action force, reaction force and other factors. At this time, the pressure sensor arranged on the fixture can detect the occurrence of an impact, thereby controlling the electromagnetic pin to be energized and rise rapidly by generating a signal. After the electromagnetic pin rises upward, it can interfere with the movement path of the impact block to hit the flexible screen to be tested, so that the bounced-up impact block will be blocked by the electromagnetic pin when it falls again, thereby failing to impact the flexible screen to be tested again. Compared with the prior art, multiple impacts are avoided, and the accuracy of the impact test results is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the module connection in the utility model;

[0015] Figure 3 This is the enlarged view of point A;

[0016] Figure 4 This is an enlarged view of point B;

[0017] Figure 5 This is the enlarged view of point C;

[0018] Figure 6 It is a cross-sectional view of the second positioning block in the utility model.

[0019] The reference numerals in the figure are as follows:

[0020] 1. Rack; 2. Placement platform; 3. Electric slide rail; 4. Flexible screen to be tested; 5. Fixture; 6. Slider; 7. Mounting plate; 8. Impact block; 9. Pressure sensor; 10. Electromagnetic pin; 11. First positioning block; 12. Second positioning block; 13. Positioning protrusion; 14. Positioning groove; 15. Placement hole. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example: Please refer to Figures 1 to 6 The present embodiment provides a test device for testing a flexible screen and preventing multiple impacts, including a frame 1, a placement platform 2 is arranged inside the frame 1, and an electric slide rail 3 and a clamp 5 for clamping a flexible screen 4 to be tested are arranged on the placement platform 2 in a symmetrical manner. The electric slide rail 3 is arranged vertically, and a mounting plate 7 is slidably connected between the electric slide rails 3 on both sides by setting a slider 6. The mounting plate 7 can move vertically up and down along the electric slide rail 3 between the electric slide rails 3 on both sides. An impact block 8 is arranged on the bottom surface of the mounting plate 7. The impact block 8 is arranged in a rectangular structure. The impact block 8 is arranged so that the projection of its cross section can cover the part of the flexible screen 4 to be tested that needs to be tested, so that the part of the flexible screen 4 to be tested that needs to be tested can be completely impacted in the subsequent impact process to ensure the impact test effect.

[0023] A pressure sensor 9 is also provided on the placement platform 2, and the pressure sensor 9 is arranged on the clamp 5. An electromagnetic pin 10 is also provided on the placement platform 2. The electromagnetic pin 10 is electrically connected to the pressure sensor 9. After detecting that an impact occurs, the pressure sensor 9 can generate a signal to control the electromagnetic pin 10 to be energized and move upward; the setting of the electromagnetic pin 10 satisfies that when the electromagnetic pin 10 is in a power-off state, the top of the electromagnetic pin 10 will not interfere with the movement path of the impact block 8 to hit the flexible screen 4 to be tested, and when the electromagnetic pin 10 is in a power-on state, the electromagnetic pin 10 can interfere with the movement path of the impact block 8 to hit the flexible screen 4 to be tested after the electromagnetic pin 10 moves upward.

[0024] Through the above-mentioned arrangement, when it is necessary to perform an impact test on the flexible screen 4 to be tested, first, the flexible screen 4 to be tested is clamped on the fixture 5, so that the part of the flexible screen 4 to be tested, that is, the folded part, is arranged vertically upward, and then the electric slide rail 3 is controlled to start working, driving the slider 6 to climb, so as to move the mounting plate 7 to move so that the impact member moves to the required horizontal height, and then the electric slide rail 3 is controlled to be powered off. At this time, the impact block 8 will impact the part of the flexible screen 4 to be tested under the action of its own weight, and will be under the elastic force and action of the flexible screen 4 to be tested. Under the influence of factors such as force and reaction force, it bounces upward. At this time, the pressure sensor 9 arranged on the fixture 5 can detect the occurrence of impact, thereby controlling the electromagnetic pin 10 to be energized and rise rapidly by generating a signal. After the electromagnetic pin 10 rises upward, it can interfere with the movement path of the impact block 8 hitting the flexible screen 4 to be tested, so that the bounced impact block 8 will be blocked by the electromagnetic pin 10 when it falls again, thereby failing to hit the part of the flexible screen 4 to be tested that needs to be tested again, so as to avoid multiple impacts and ensure the accuracy of the impact test results.

[0025] In order to ensure the accuracy of the impact part when it collides with the flexible screen 4 to be tested, the first positioning block 11 is symmetrically arranged on the bottom surface of the mounting plate 7, and the second positioning block 12 is symmetrically arranged on the top surface of the placement platform 2. The arrangement of the first positioning block 11 and the second positioning block 12 meets the requirement that when the impact block 8 collides with the part of the flexible screen 4 to be tested, the first positioning blocks 11 on both sides are fitted with the second positioning blocks 12 on the corresponding side, which can be used to ensure the accuracy of the impact block 8 when it collides. That is, before the impact, the electric slide rail 3 can be controlled to drive the slider 6 to move downward, so that the first positioning block 11 moves in the direction close to the second positioning block 12. After the first positioning block 11 moves to fit with the second positioning block 12, the electric slide rail 3 stops working. At this time, the staff can determine whether the movement path of the impact block 8 is a vertical line by observing the fit between the first positioning block 11 and the second positioning block 12. If the fit between the first positioning block 11 and the second positioning block 12 is skewed, it means that the movement path of the impact block 8 will be skewed. At this time, if the impact test is continued, the impact block 8 will not be able to accurately impact the part of the flexible screen 4 to be tested, and appropriate maintenance work should be carried out.

[0026] To further facilitate the testers' judgment on the movement path of the impact block 8, a conical positioning protrusion 13 is provided on the bottom surface of the first positioning blocks 11 on both sides, and a positioning groove 14 which is adapted to the corresponding side positioning protrusion 13 is provided on the top surface of the second positioning blocks 12 on both sides. When the impact block 8 hits the flexible screen 4 to be tested, the positioning protrusions 13 on both sides are inserted into the corresponding side positioning grooves 14; through the above-mentioned settings, the testers can quickly know whether the movement path of the impact block 8 is a vertical line by judging whether the positioning protrusion 13 is accurately inserted into the positioning groove 14.

[0027] In this embodiment, placement holes 15 are opened inwardly on the positioning grooves 14 on both sides, and the electromagnetic pins 10 are arranged in the placement holes 15 on both sides. When the electromagnetic pin 10 is in the power-off state, the top of the electromagnetic pin 10 is arranged to be received in the placement hole 15. When the electromagnetic pin 10 is in the power-on state, the top of the electromagnetic pin 10 is arranged to be extended out of the placement hole 15, so as to block the positioning protrusion 13 from entering the positioning groove 14.

[0028] The working principle of the utility model is that when it is necessary to perform an impact test on the flexible screen 4 to be tested, the flexible screen 4 to be tested is first clamped on the fixture 5, so that the part of the flexible screen 4 to be tested, that is, the folded part, is set vertically upward, and then the electric slide rail 3 is controlled to start working. The electric slide rail 3 first drives the mounting plate 7 to move downward, so that the positioning protrusion 13 moves in the direction close to the positioning groove 14. If the positioning protrusion 13 can be smoothly inserted into the positioning groove 14, it means that there is no problem with the movement path of the impact block 8, that is, the impact test can be performed. If the positioning protrusion 13 cannot be inserted into the positioning groove 14, it means that there is a deviation in the movement path of the impact block 8, and corresponding maintenance work should be performed. When it is determined that there is no problem with the movement path of the impact block 8, the electric slide rail 3 drives the mounting plate 7 to perform a climbing movement to move the impact piece to the required horizontal height. After that, the electric slide rail 3 is controlled to cut off the power. At this time, the impact block 8 will hit the part of the flexible screen 4 to be tested under the action of its own weight, and will bounce upward under the influence of the elastic force, action force, reaction force and other factors of the flexible screen 4 to be tested. At this time, the pressure sensor 9 arranged on the fixture 5 can detect the occurrence of an impact, thereby controlling the electromagnetic pin 10 to be energized and quickly rise upward from the placement hole 15 by generating a signal. After the electromagnetic pin 10 rises upward, it can block the positioning protrusion 13 from entering the positioning groove 14, thereby interfering with the movement path of the impact block 8 hitting the flexible screen 4 to be tested, so that the bounced-up impact block 8 will be blocked by the electromagnetic pin 10 when it falls again, thereby failing to hit the part of the flexible screen 4 to be tested that needs to be tested again.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A test device for testing a flexible screen and preventing multiple impacts, comprising a frame (1), a placement platform (2) arranged inside the frame (1), symmetrically arranged electric slide rails (3) and a fixture (5) for clamping a flexible screen (4) to be tested, a mounting plate (7) slidably connected between the electric slide rails (3) on both sides by means of a slider (6), and an impact block (8) is arranged on the bottom surface of the mounting plate (7), characterized in that: The placement platform (2) is also provided with a pressure sensor (9), which is arranged on the fixture (5). The placement platform (2) is also provided with an electromagnetic pin (10), which is electrically connected to the pressure sensor (9). After detecting that an impact has occurred, the pressure sensor (9) can generate a signal to control the electromagnetic pin (10) to be energized and move upward. The electromagnetic pin (10) is arranged so that when the electromagnetic pin (10) is in a power-off state, the top of the electromagnetic pin (10) will not interfere with the movement path of the impact block (8) impacting the flexible screen (4) to be tested, and when the electromagnetic pin (10) is in a power-on state, the top of the electromagnetic pin (10) can interfere with the movement path of the impact block (8) impacting the flexible screen (4) to be tested.

2. A test device for preventing multiple impacts for testing a flexible screen according to claim 1, characterized in that: The bottom surface of the mounting plate (7) is symmetrically provided with first positioning blocks (11), and the top surface of the placement platform (2) is symmetrically provided with second positioning blocks (12), and when the impact block (8) impacts the flexible screen (4) to be tested, the first positioning blocks (11) on both sides are arranged to fit with the second positioning blocks (12) on the corresponding sides.

3. A test device for preventing multiple impacts for testing a flexible screen according to claim 2, characterized in that: The bottom surfaces of the first positioning blocks (11) on both sides are provided with positioning protrusions (13) with a conical structure, and the top surfaces of the second positioning blocks (12) on both sides are provided with positioning grooves (14) adapted to the positioning protrusions (13) on the corresponding sides. When the impact block (8) impacts the flexible screen (4) to be tested, the positioning protrusions (13) on both sides are inserted into the positioning grooves (14) on the corresponding sides.

4. The test device for preventing multiple impacts for testing a flexible screen according to claim 3, characterized in that: The positioning grooves (14) on both sides are provided with placement holes (15) facing inwards, and the electromagnetic pins (10) are arranged in the placement holes (15) on both sides. When the electromagnetic pin (10) is in a power-off state, the top of the electromagnetic pin (10) is arranged to be received in the placement hole (15), and when the electromagnetic pin (10) is in a power-on state, the top of the electromagnetic pin (10) is arranged to be extended out of the placement hole (15).

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