A device for detecting durability of liquid crystal instrument

By designing a durability detection device for liquid crystal instruments including detection components, downward mechanism and push mechanism, the problem that the prior art cannot perform vibration and humidity detection after high temperatures is solved, and comprehensive inspection of liquid crystal instruments in harsh environments is achieved to ensure its reliability and accuracy.

CN119199355BActive Publication Date: 2025-03-04NORTHEASTERN UNIV CHINA
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Patent Information

Application Number
CN202411624552.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-03-04
Estimated Expiration
2044-11-14

AI Technical Summary

Technical Problem

The existing LCD instrument durability detection device cannot perform vibration and humidity detection after high temperatures, cannot detect monitors and buttons, and cannot evaluate the strength of the LCD instrument case and the fixation of internal components.

Method used

A liquid crystal instrument durability detection device is designed, including a detection assembly, a downward mechanism and a push mechanism. The detection components include a driving mechanism, a clamping mechanism, a vibration mechanism, a temperature detection mechanism and a humidity detection mechanism, which can detect vibration and humidity of the liquid crystal instrument after high temperatures, and detect the display and buttons. The downward pressing mechanism and pushing mechanism are used to simulate the use environment and detect the performance of the liquid crystal instrument under these conditions.

Benefits of technology

The detection of the vibration and humidity of the LCD instrument after high temperature is achieved to ensure its reliability and accuracy in harsh environments, and to ensure its normal use by detecting the monitor and buttons, evaluating the strength of the LCD instrument housing and the fixation of the internal components.

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Abstract

The present invention discloses a durability detection device for a liquid crystal instrument, and specifically relates to the technical field of detection devices, including a device housing, the front end of the device housing is rotatably connected to a transparent door panel, the left end of the device housing is located below the side door and a control box is fixedly installed, and a detection component is provided on the inner surface of the device housing. The durability detection device for a liquid crystal instrument described in the present invention, through the detection component, enables a variety of tests to be performed during the process of clamping, fixing and conveying the liquid crystal instrument, and can perform vibration detection on the liquid crystal instrument after high temperature, detect the electronic components inside the liquid crystal instrument under high temperature and vibration use environment, the use status of the liquid crystal instrument, perform humidity detection on it after high temperature, evaluate the performance of the liquid crystal instrument under high temperature and high humidity conditions, and detect its display and buttons after multiple tests, so as to ensure its reliability and accuracy in harsh environments and improve the accuracy of detection.
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Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to a durability detection device for a liquid crystal instrument. Background Art

[0002] The LCD instrument is to display the information of the instrument on the LCD screen. Most of the current models will put a display screen between the traditional tachometer and speedometer. This screen has gone through the development from nothing to something, and then through the black and white broken code screen, monochrome dot matrix screen to color LCD screen. The LCD instrument displays rich content, has a sense of hierarchy, is beautiful, and has a strong integrity. More and more models are equipped with LCD instruments, and traditional mechanical instrument panels also use small-screen monochrome and full-color LCD displays. The display content is richer, and LCD instruments are the trend of future development.

[0003] Chinese patent announcement number CN116699295B discloses a durability detection device for a liquid crystal meter, including a device body, a high temperature box and a low temperature box are respectively installed on the outer walls of both sides of the device body, a dust box is installed on the back of the device body, a sealing door is installed on the front of the device body, a spray mechanism is installed inside the device body, a filter plate is installed inside the device body, and a clamping mechanism is installed on the top of the filter plate. In this invention, by setting up a high temperature box and a low temperature box, hot air and cold air are introduced into the interior of the device body with the help of a fan and an exhaust pipe for a period of time, simulating the scene of the use of the liquid crystal meter in a high temperature and low temperature environment, so as to obtain whether the high temperature and low temperature resistance of the liquid crystal meter are qualified; and by setting up a dust box, sand and dust can be introduced into the interior of the device body, so as to obtain whether the wind and sand resistance of the liquid crystal meter is qualified, so that the device can detect multiple performances of the liquid crystal meter and improve the detection efficiency of the liquid crystal meter; However, the above patent document still has the following defects during implementation:

[0004] Although the above patent tests multiple performances of the LCD instrument during implementation, it is unable to test the vibration of the LCD instrument after high temperature, and is unable to test the humidity resistance of the LCD instrument after high temperature. At the same time, it is unable to test the display and buttons of the LCD instrument after multiple tests, and is unable to test the strength of the LCD instrument casing and the fixation of internal components. Summary of the invention

[0005] The main purpose of the present invention is to provide a liquid crystal instrument durability detection device, which can effectively solve the problem that the liquid crystal instrument cannot be subjected to vibration and humidity detection after being exposed to high temperature.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a liquid crystal instrument durability detection device, including a device shell, a transparent door panel is rotatably connected to the front end of the device shell, a side door is rotatably connected to the upper left end of the device shell, a control box is fixedly installed on the left end of the device shell below the side door, support legs are fixedly connected at the four corners of the lower end of the device shell, and a detection component is arranged on the inner surface of the device shell.

[0007] Preferably, the detection component includes a rectangular groove opened in the middle of the upper part of the inner surface of the device shell, a driving mechanism is arranged on the inner surface of the rectangular groove, a clamping mechanism is symmetrically arranged on the lower end of the driving mechanism, a guide mechanism is symmetrically arranged on the inner surface of the device shell, a vibration mechanism is arranged on the upper ends of the two guide mechanisms, a temperature detection mechanism is arranged on the left side of the lower part of the inner surface of the device shell, a humidity detection mechanism is arranged on the right side of the lower part of the inner surface of the device shell, a pressing mechanism is arranged on the upper end of the driving mechanism, and a pushing mechanism is arranged on the right part of the inner surface of the device shell.

[0008] Preferably, the driving mechanism includes a slider slidingly connected to the inner surface of the rectangular groove, the upper left end of the device housing penetrates and extends to the right end of the device housing and is rotatably connected to a threaded rod threadedly connected to the slider, the left end of the threaded rod is fixedly connected to a servo motor fixedly connected to the left end of the device housing, and the lower end of the slider is fixedly connected to a rectangular plate.

[0009] Preferably, the clamping mechanism includes a multi-stage telescopic rod fixedly connected to the front portion of the lower end of the rectangular plate, a rectangular hole is opened at the lower front end of the multi-stage telescopic rod, a connecting block is slidably connected to the inner surface of the rectangular hole, a fixing plate is fixedly connected to the rear end of the connecting block, spring telescopic rods 1 are fixedly connected at the four corners of the rear end of the fixing plate, and the rear ends of the four spring telescopic rods 1 are commonly fixedly connected to the clamping plate.

[0010] Preferably, the guide mechanism includes a track fixedly connected to the left and right parts of the inner surface of the device shell, the front end of the multi-stage telescopic rod is located below the rectangular hole, passes through and extends to the rear end of the multi-stage telescopic rod, and is rotatably connected to a round rod, and the front end of the round rod is fixedly connected to a round ball that is slidably connected to the inner surface of the track.

[0011] Preferably, the vibration mechanism includes a plurality of arc surface blocks 2 fixedly connected to the upper end of the track, a spring telescopic rod 2 fixedly connected to the lower end of the connecting block is fixedly connected to the lower part of the inner surface of the rectangular hole, and an arc surface block 1 is fixedly connected to the front end of the connecting block.

[0012] Preferably, the temperature detection mechanism includes a placement box 1 fixedly connected to the left side of the lower inner surface of the device shell, a high temperature box is fixedly installed on the rear side of the lower inner surface of the placement box 1, and a low temperature box is fixedly installed on the front side of the lower inner surface of the placement box 1.

[0013] Preferably, the humidity detection mechanism includes a placement box 2 and a placement box 3 which are fixedly connected to the lower part of the inner surface of the device shell, a hollow block with a notch is fixedly connected to the rear part of the inner surface of the placement box 3, a plurality of ultrasonic vibrators are linearly distributed and fixedly installed on the lower part of the inner surface of the hollow block with a notch, and a connecting pipe is fixedly connected to the upper part of the inner surface of the hollow block with a notch, penetrating through and extending to the inner surface of the placement box 2.

[0014] Preferably, the pressing mechanism includes a plurality of arc surface blocks four fixedly connected to the front side of the upper inner surface of the device shell, the front part of the upper end of the rectangular plate passes through and extends to the lower end of the rectangular plate and is slidably connected with a Z-shaped rod, the upper end of the Z-shaped rod is fixedly connected to the arc surface block three, the lower end of the Z-shaped rod is fixedly connected to the pressing plate, and a return spring is sleeved on the upper outer surface of the Z-shaped rod, and the two ends of the return spring are respectively fixedly connected to the upper end of the rectangular plate and the lower end of the arc surface block three.

[0015] Preferably, the pushing mechanism includes a square hole opened at the right end of the device shell, the right end of the multi-stage telescopic rod is fixedly connected to the push rod, the front and rear parts of the inner surface of the square hole are connected to a flip plate that rotates together, the right part of the inner surface of the device shell is symmetrically fixedly connected to an extrusion plate 1, and the lower end of the clamping plate is fixedly connected to an extrusion plate 2.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, by providing a detection component, a variety of tests can be achieved during the process of clamping, fixing and conveying the LCD meter, and vibration detection can be performed on the LCD meter after high temperature, and the use status of the LCD meter under the vibration use environment of the electronic components inside the LCD meter under high temperature can be detected. The humidity detection can be performed after high temperature to evaluate the performance of the LCD meter under high temperature and high humidity conditions. After multiple tests, the display and buttons can be tested to ensure its reliability and accuracy in harsh environments and improve the accuracy of the detection.

[0018] 2. In the present invention, by providing a pressing mechanism and a pushing mechanism, the display and buttons on the LCD meter after the temperature test, vibration test, humidity test and sealing test can be tested by the extrusion plate, so as to simulate the use environment and detect whether the display and buttons of the LCD meter can be used normally after these tests. At the same time, after a series of tests, the LCD meter can be dropped from the air by the flip plate to detect the shell strength of the LCD meter and the fixing condition of the internal components.

[0019] 3. In the present invention, by providing a driving mechanism, a clamping mechanism and a guiding mechanism, the liquid crystal instrument can be fixed by the clamping plate. Under the cooperation of the ball and the track, the liquid crystal instrument can reciprocate up and down on the clamping plate, thereby driving the liquid crystal instrument to perform a plurality of coordinated detection operations, which can improve the detection efficiency and facilitate the use of the detection personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the device housing of the present invention;

[0023] Figure 4 Schematic diagram of the cross-sectional structure of the detection component of the present invention

[0024] Figure 5 It is a schematic diagram of the driving mechanism structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the explosion effect of the clamping mechanism and the vibration mechanism of the present invention;

[0026] Figure 7 It is a schematic diagram of the track structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the explosion effect of the temperature detection mechanism of the present invention;

[0028] Fig. 9 It is a schematic diagram of the cross-sectional structure of the humidity detection mechanism of the present invention;

[0029] Fig.10 It is a schematic diagram of the structure of the pressing mechanism of the present invention;

[0030] Fig.11 It is a schematic diagram of the explosion effect of the propulsion mechanism of the present invention.

[0031] In the figure: 1. device housing; 2. transparent door panel; 3. side door; 4. control box; 5. support leg; 6. detection component; 61. rectangular slot; 62. driving mechanism; 621. slider; 622. threaded rod; 623. servo motor; 624. rectangular plate; 63. clamping mechanism; 631. multi-stage telescopic rod; 632. rectangular hole; 633. connecting block; 634. fixing plate; 635. spring telescopic rod 1; 636. clamping plate; 64. vibration mechanism; 641. spring telescopic rod 2; 642. arc block 1; 643. arc block 2; 65. temperature detection mechanism; 651. placement box 1; 652, high temperature box; 653, low temperature box; 66, humidity detection mechanism; 661, storage box two; 662, storage box three; 663, notched hollow block; 664, ultrasonic vibrator; 665, connecting pipe; 67, guiding mechanism; 671, round rod; 672, round ball; 673, track; 68, pressing mechanism; 681, Z-shaped rod; 682, reset spring; 683, arc surface block three; 684, pressing plate; 685, arc surface block four; 69, pushing mechanism; 691, push rod; 692, square hole; 693, flip plate; 694, extrusion plate one; 695, extrusion plate two. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] Embodiment 1, as Figure 1 and Figure 2 As shown, a durability detection device for a liquid crystal instrument includes a device housing 1, a transparent door panel 2 is rotatably connected to the front end of the device housing 1, a side door 3 is rotatably connected to the upper left end of the device housing 1, a control box 4 is fixedly installed on the left end of the device housing 1 below the side door 3, support legs 5 are fixedly connected to the four corners of the lower end of the device housing 1, and a detection component 6 is arranged on the inner surface of the device housing 1.

[0034] During the implementation of this embodiment, the side door 3 is opened, the LCD meter is placed on the detection component 6, the control box 4 is operated, the LCD meter is clamped and transported by the detection component 6, the temperature of the LCD meter is detected during transportation, vibration detection is performed after the temperature detection, and then humidity detection is performed. The sealing performance of the LCD meter is then tested by entering water, and then the LCD display and buttons on the LCD meter are squeezed and tested. Finally, the LCD meter is dropped for testing.

[0035] The control box 4 mentioned above is a mature control technology means and a mature control technology equipment in the prior art. In this solution, the controllable functions thereof are utilized, and its structure and principle are not further elaborated.

[0036] Specifically, in order to realize vibration detection of LCD instruments under high and low temperature conditions, refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 In this embodiment, the detection component 6 includes a rectangular groove 61 opened on the middle side of the upper inner surface of the device shell 1, a driving mechanism 62 is arranged on the inner surface of the rectangular groove 61, a clamping mechanism 63 is symmetrically arranged on the lower end of the driving mechanism 62, a guide mechanism 67 is symmetrically arranged on the inner surface of the device shell 1, a vibration mechanism 64 is arranged on the upper ends of the two guide mechanisms 67, a temperature detection mechanism 65 is arranged on the left side of the lower inner surface of the device shell 1, a humidity detection mechanism 66 is arranged on the right side of the lower inner surface of the device shell 1, a pressing mechanism 68 is arranged on the upper end of the driving mechanism 62, and a pushing mechanism 69 is arranged on the right part of the inner surface of the device shell 1.

[0037] For further information, see Figure 3 and Figure 6 In this embodiment, the clamping mechanism 63 includes a multi-stage telescopic rod 631 fixedly connected to the front lower end of the rectangular plate 624, a rectangular hole 632 is opened at the lower front end of the multi-stage telescopic rod 631, a connecting block 633 is slidably connected to the inner surface of the rectangular hole 632, a fixing plate 634 is fixedly connected to the rear end of the connecting block 633, spring telescopic rods 635 are fixedly connected at the four corners of the rear end of the fixing plate 634, and the rear ends of the four spring telescopic rods 635 are fixedly connected to a clamping plate 636.

[0038] For further information, see Figure 3 , Figure 4 and Figure 5 In this embodiment, the driving mechanism 62 includes a slider 621 that is slidably connected to the inner surface of the rectangular groove 61. A threaded rod 622 that is threadedly connected to the slider 621 is rotatably connected to the upper left end of the device housing 1 and extends to the right end of the device housing 1. The left end of the threaded rod 622 is fixedly connected to a servo motor 623 that is fixedly connected to the left end of the device housing 1. A rectangular plate 624 is fixedly connected to the lower end of the slider 621.

[0039] For further information, see Figure 4 , Figure 6 and Figure 7 In this embodiment, the guide mechanism 67 includes a track 673 fixedly connected to the left and right parts of the inner surface of the device housing 1. The front end of the multi-stage telescopic rod 631 is located below the rectangular hole 632 and extends to the rear end of the multi-stage telescopic rod 631 and is rotatably connected to a round rod 671. The front end of the round rod 671 is fixedly connected to a round ball 672 that is slidably connected to the inner surface of the track 673.

[0040] During the implementation process, the clamping plate 636 is pushed left and right to place the LCD instrument between the two clamping plates 636. At this time, the clamping plate 636 will be reset under the compression reaction of the spring telescopic rod 635, and the LCD instrument will be clamped between the two clamping plates 636. At this time, the servo motor 623 is started, so that the output end of the servo motor 623 drives the threaded rod 622 to rotate through the coupling. Since the slider 621 and the threaded rod 622 are threadedly connected, the threaded rod 622 drives the slider 621 to slide on the inner surface of the rectangular groove 61 during the rotation, and then drives the multi-stage telescopic rod 631 on the rectangular plate 624 to rotate, so that the ball 672 on the round rod 671 slides on the inner surface of the track 673, which can drive the LCD instrument on the clamping plate 636 to move. Under the action of the track 673, the LCD instrument can move up and down reciprocatingly along the shape of the track 673, driving the LCD instrument to perform multiple detection operations during the transportation process, thereby improving the detection efficiency.

[0041] The servo motor 623 mentioned above is controlled by a servo control system in the prior art in this solution, which can control the speed, number of rotations and rotation angle of the servo motor 623. In this solution, it is only necessary to ensure that the servo motor 623 can stop in time after completing the number of rotations.

[0042] For further information, see Figure 4 and Figure 8 In this embodiment, the temperature detection mechanism 65 includes a placement box 651 fixedly connected to the left side of the lower inner surface of the device shell 1, a high temperature box 652 is fixedly installed on the rear side of the lower inner surface of the placement box 651, and a low temperature box 653 is fixedly installed on the front side of the lower inner surface of the placement box 651.

[0043] From the above, it can be seen that when the LCD instrument on the clamping mechanism 63 moves to the first recess of the track 673, the LCD instrument moves to the placement box 651 at this time, and the low temperature box 653 is started to introduce low temperature wind into the placement box 651. At this time, the low temperature will perform a low temperature test on the LCD instrument to simulate the working condition of the instrument in a low temperature environment, and check whether there are problems such as unclear display and slow response. After the low temperature test is completed, the high temperature wind is introduced into the placement box 651 through the high temperature box 652. At this time, the high temperature will perform a high temperature test on the LCD instrument to simulate the working condition of the instrument in a high temperature environment, and check whether there are problems such as unclear display and slow response.

[0044] Secondly, through the cooperation of the low-temperature box 653 and the high-temperature box 652, the low-temperature wind and the high-temperature wind can be circulated to simulate the working conditions of the instrument in an environment with alternating temperature changes, and its weather resistance and stability can be checked.

[0045] The high temperature box 652 mentioned above is a mature technical means and technical equipment in the prior art. In this solution, its function of heating air is utilized, and its structure and principle are not further elaborated.

[0046] The low temperature box 653 mentioned above is a mature technical means and technical equipment in the prior art. In this solution, its function of cooling the air is utilized, and its structure and principle are not further elaborated.

[0047] For further information, see Figure 4 and Figure 6 In this embodiment, the vibration mechanism 64 includes a plurality of arc surface blocks 643 fixedly connected to the upper end of the track 673, a spring telescopic rod 641 fixedly connected to the lower end of the connecting block 633 is fixedly connected to the lower part of the inner surface of the rectangular hole 632, and an arc surface block 642 is fixedly connected to the front end of the connecting block 633.

[0048] During the implementation process, the LCD instrument that has passed the high-temperature test can continue to move with the clamping mechanism 63. When it moves to the upper end of the track 673, since the arc block 2 643 is fixedly connected to the track 673, the arc block 1 642 will be lifted by the arc block 2 643 during the movement, thereby driving the connecting block 633 to pull the spring telescopic rod 2 641 for tensile deformation. When the arc block 1 642 leaves the arc block 2 643, it will drive the connecting block 633 to reset under the tensile reaction force of the spring telescopic rod 2 641, thereby allowing the LCD instrument to move up and down during the movement. Vibration detection after high temperature can more realistically simulate the actual use environment of the LCD instrument, thereby more accurately evaluating its performance and reliability.

[0049] Secondly, vibration detection can be performed on the LCD instrument after cooling to simulate the performance of the LCD instrument under low temperature conditions.

[0050] Embodiment 2: Based on Embodiment 1, this embodiment performs humidity and sealing tests on the liquid crystal instrument after being exposed to high temperature.

[0051] Specifically, in order to perform humidity and sealing tests on LCD instruments after high temperature, refer to Figure 4 and Fig. 9 In this embodiment, the humidity detection mechanism 66 includes a placement box 2 661 and a placement box 3 662 fixedly connected to the lower part of the inner surface of the device shell 1, a notched hollow block 663 is fixedly connected to the rear part of the inner surface of the placement box 3 662, a plurality of ultrasonic vibrators 664 are linearly distributed and fixedly installed on the lower part of the inner surface of the notched hollow block 663, and a connecting pipe 665 is fixedly connected to the upper part of the inner surface of the notched hollow block 663 through and extending to the inner surface of the placement box 2 661.

[0052] During the implementation process, a certain amount of water is injected into the placement box 3 662 before the test. The water can enter the hollow block 663 with a notch. The water is atomized by the ultrasonic vibrator 664. The atomized water mist can enter the placement box 2 661 through the connecting pipe 665. At this time, the LCD meter will move to the second concave position on the track 673 with the clamping mechanism 63. At the same time, the LCD meter is in the placement box 2 661. The water mist can increase the humidity of the air. The humidity test can be carried out after high temperature. This extreme environment can be simulated to evaluate the performance of the LCD meter under high temperature and high humidity conditions. This includes the accuracy, stability, durability and other aspects of the LCD meter, and checks whether it has condensation, blurred display and other problems, so as to ensure its reliability and accuracy in harsh environments.

[0053] Secondly, after the humidity test is completed, the high-temperature LCD instrument can be moved to the third recess of the track 673 so that the LCD instrument can be completely immersed in the placement box three 662. The previous high-temperature environment may produce thermal stress on the sealing materials, structural parts, etc. of the LCD instrument, thereby further testing the sealing performance of the LCD instrument under extreme usage conditions.

[0054] The ultrasonic vibrator 664 mentioned above is a mature atomization technology means and atomization technology equipment in the prior art. In this scheme, its function of vibrating and atomizing water is utilized so that water can be turned into tiny water droplets under high-frequency vibration. Its structure and principle will not be elaborated any more.

[0055] Embodiment 3: In order to detect the display and buttons on the LCD instrument, refer to Figure 3 , Figure 4 and Fig.10 In this embodiment, the pressing mechanism 68 includes a plurality of arc surface blocks 685 fixedly connected to the front side of the upper inner surface of the device housing 1, and a Z-shaped rod 681 is slidably connected to the front of the upper end of the rectangular plate 624 and extends to the lower end of the rectangular plate 624, and the upper end of the Z-shaped rod 681 is fixedly connected to the arc surface block 3 683, and the lower end of the Z-shaped rod 681 is fixedly connected to the pressing plate 684, and a return spring 682 is sleeved on the upper outer surface of the Z-shaped rod 681, and the two ends of the return spring 682 are respectively fixedly connected to the upper end of the rectangular plate 624 and the lower end of the arc surface block 3 683.

[0056] During the implementation process, after the sealing test of the LCD instrument is completed, the LCD instrument moves to the upper right part of the track 673 again with the clamping mechanism 63. Since the arc block four 685 is fixedly connected to the inner surface of the device shell 1, when the arc block three 683 moves to the upper right part of the track 673, the arc block three 683 will be squeezed by the arc block four 685, so that the arc block three 683 pushes the Z-shaped rod 681 to slide, and at the same time, the reset spring 682 is in a compressed state. The downward movement of the Z-shaped rod 681 can achieve reciprocating downward pressure, so that the lower pressure plate 684 will squeeze the display and buttons on the LCD instrument. After the temperature test, vibration test, humidity test and sealing test, the display and buttons are tested to simulate the use environment and detect whether the display and buttons of the LCD instrument can be used normally after these tests.

[0057] For further information, see Figure 3 , Figure 4 and Fig.11 In this embodiment, the pushing mechanism 69 includes a square hole 692 opened at the right end of the device housing 1, a push rod 691 is fixedly connected to the right end of the multi-stage telescopic rod 631, a flip plate 693 is connected to the front and rear of the inner surface of the square hole 692 to rotate together, an extrusion plate 1 694 is fixedly connected to the right part of the inner surface of the device housing 1 symmetrically front and back, and an extrusion plate 2 695 is fixedly connected to the lower end of the clamping plate 636.

[0058] During implementation, when the clamping mechanism 63 moves to the far right, the squeezing plates 2 695 and 1 694 on the clamping plate 636 squeeze each other away, so that the spring telescopic rod 1 635 is in a compressed state again, and the clamping plate 636 is unable to clamp the LCD instrument. At this time, the multi-stage telescopic rod 631 will push the push rod 691 to squeeze the flip plate 693, and push the flip plate 693 to rotate on the inner surface of the square hole 692, so that the lower part of the flip plate 693 can be flipped, pushing the LCD instrument to fall from the clamping plate 636. The drop test can directly test the damage resistance of the LCD instrument when it is subjected to external impact, and can evaluate the outer shell strength of the instrument, the fixation of the internal components and the stability of the overall structure, so as to judge its durability in actual use.

[0059] Working process: When in use, the LCD meter is placed on the clamping mechanism 63, and the clamping mechanism 63 is driven to move by the driving mechanism 62. During the movement, with the cooperation of the guide mechanism 67, the temperature of the LCD meter is detected by the temperature detection mechanism 65, and then the vibration detection is performed on it by the vibration mechanism 64. Under the action of the temperature detection mechanism 65, the sealing performance of the LCD meter in humidity and underwater is detected, and then the display screen and buttons on the LCD meter are detected by the pressing mechanism 68. Finally, a drop test is performed through the pushing mechanism 69 to detect the shell strength of the LCD meter and the fixation of the internal components.

[0060] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A liquid crystal instrument durability detection device, comprising a device housing (1), characterized in that: The front end of the device housing (1) is rotatably connected to a transparent door panel (2); the upper left end of the device housing (1) is rotatably connected to a side door (3); a control box (4) is fixedly installed at the left end of the device housing (1) below the side door (3); support legs (5) are fixedly connected at the four corners of the lower end of the device housing (1); and a detection component (6) is arranged on the inner surface of the device housing (1); The detection component (6) comprises a rectangular groove (61) provided on the middle side of the upper part of the inner surface of the device housing (1); a driving mechanism (62) is provided on the inner surface of the rectangular groove (61); a clamping mechanism (63) is symmetrically provided at the lower end of the driving mechanism (62) in the front and rear directions; a guiding mechanism (67) is symmetrically provided at the inner surface of the device housing (1); a vibration mechanism (64) is provided at the upper end of the two guiding mechanisms (67); a temperature detection mechanism (65) is provided on the left side of the lower part of the inner surface of the device housing (1); a humidity detection mechanism (66) is provided on the right side of the lower part of the inner surface of the device housing (1); a pressing mechanism (68) is provided at the upper end of the driving mechanism (62); and a pushing mechanism (69) is provided on the right side of the inner surface of the device housing (1); The driving mechanism (62) comprises a slider (621) slidably connected to the inner surface of the rectangular groove (61), the lower end of the slider (621) is fixedly connected to a rectangular plate (624), the clamping mechanism (63) comprises a multi-stage telescopic rod (631) fixedly connected to the front portion of the lower end of the rectangular plate (624), a rectangular hole (632) is provided at the lower front end of the multi-stage telescopic rod (631), a connecting block (633) is slidably connected to the inner surface of the rectangular hole (632), the rear end of the connecting block (633) is fixedly connected to a fixing plate (634), the four corners of the rear end of the fixing plate (634) are fixedly connected to spring telescopic rods (635), and the rear ends of the four spring telescopic rods (635) are fixedly connected to a clamping plate (636) in common; The guide mechanism (67) comprises a track (673) fixedly connected to the left and right parts of the inner surface of the device housing (1); the front end of the multi-stage telescopic rod (631) is located below the rectangular hole (632), passes through and extends to the rear end of the multi-stage telescopic rod (631), and is rotatably connected to a round rod (671); the front end of the round rod (671) is fixedly connected to a round ball (672) slidably connected to the inner surface of the track (673); The pushing mechanism (69) comprises a square hole (692) opened at the right end of the device housing (1); the right end of the multi-stage telescopic rod (631) is fixedly connected to the pushing rod (691); the front and rear parts of the inner surface of the square hole (692) are connected to a flip plate (693) for rotation; the right part of the inner surface of the device housing (1) is symmetrically fixedly connected to an extrusion plate 1 (694); and the lower end of the clamping plate (636) is fixedly connected to an extrusion plate 2 (695).

2. The durability detection device for a liquid crystal instrument according to claim 1, characterized in that: The upper portion of the left end of the device housing (1) penetrates through and extends to the right end of the device housing (1), and is rotatably connected to a threaded rod (622) threadedly connected to a slider (621); the left end of the threaded rod (622) is fixedly connected to a servo motor (623) fixedly connected to the left end of the device housing (1).

3. The durability detection device for a liquid crystal instrument according to claim 1, characterized in that: The vibration mechanism (64) comprises a plurality of arc surface blocks (643) fixedly connected to the upper end of the track (673); a spring telescopic rod (641) fixedly connected to the lower end of the connecting block (633) is fixedly connected to the lower portion of the inner surface of the rectangular hole (632); and an arc surface block (642) is fixedly connected to the front end of the connecting block (633).

4. The durability detection device for a liquid crystal instrument according to claim 1, characterized in that: The temperature detection mechanism (65) comprises a placement box (651) fixedly connected to the left side of the lower inner surface of the device housing (1), a high temperature box (652) fixedly installed on the rear side of the lower inner surface of the placement box (651), and a low temperature box (653) fixedly installed on the front side of the lower inner surface of the placement box (651).

5. The durability detection device for a liquid crystal instrument according to claim 1, characterized in that: The humidity detection mechanism (66) comprises a second placement box (661) and a third placement box (662) fixedly connected to the lower portion of the inner surface of the device housing (1); a hollow block with a notch (663) is fixedly connected to the rear portion of the inner surface of the placement box (662); a plurality of ultrasonic vibrators (664) are linearly distributed and fixedly installed on the lower portion of the inner surface of the hollow block with a notch (663); a connecting pipe (665) is fixedly connected to the upper portion of the inner surface of the hollow block with a notch (663) that penetrates and extends to the inner surface of the second placement box (661).

6. The durability detection device for a liquid crystal instrument according to claim 1, characterized in that: The pressing mechanism (68) comprises a plurality of arc surface blocks (4) (685) fixedly connected to the front side of the upper inner surface of the device housing (1); the front part of the upper end of the rectangular plate (624) penetrates through and extends to the lower end of the rectangular plate (624) and is slidably connected to a Z-shaped rod (681); the upper end of the Z-shaped rod (681) is fixedly connected to an arc surface block (3) (683); the lower end of the Z-shaped rod (681) is fixedly connected to a pressing plate (684); a return spring (682) is sleeved on the upper outer surface of the Z-shaped rod (681); the two ends of the return spring (682) are respectively fixedly connected to the upper end of the rectangular plate (624) and the lower end of the arc surface block (3) (683).

Citation Information

Patent Citations

  • A durability testing device for LCD instruments

    CN116699295B

  • Durability detection device for liquid crystal instrument

    CN116699295A

  • Liquid crystal display screen detection device

    CN217954871U