Instrument durability detection device

Abstract

The invention belongs to the technical field of power electronic component manufacturing, and particularly relates to an instrument durability detection device which comprises a machine body, one side of the machine body is provided with a sand blasting assembly, the sand blasting assembly comprises a fixed box fixedly connected to one side of the machine body, one side of the fixed box is fixedly connected with a connecting pipe, the connecting pipe is a telescopic connecting pipe, and the telescopic connecting pipe is connected with the sand blasting assembly. A fixing plate is fixedly connected to one end of the connecting pipe, a plurality of first hydraulic cylinders are fixedly connected to the upper surface of the fixing plate, rotating shafts are fixedly connected to the two ends of the fixing plate, rotating plates are rotatably connected to the circumferential surfaces of the rotating shafts, a plurality of spraying holes are formed in the lower surface of the fixing plate, and the spraying holes are sealed by the rotating plates; auxiliary boxes are arranged on the two sides of the machine body correspondingly, and by arranging the adjusting assembly and the scraping assembly, the problem that sand grains can adhere to the surface of the liquid crystal display screen is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of power electronic component manufacturing, in particular to an instrument durability detection device. Background Art

[0002] Accurate monitoring and efficient management are crucial in power distribution systems. This is why instrument display monitoring equipment has emerged as a key tool for ensuring stable distribution system operation. This equipment collects and displays key system parameters such as voltage, current, and power in real time, allowing operators to intuitively understand system status. By analyzing displayed data, potential faults can be identified promptly, allowing proactive measures to prevent accidents and ensure the reliability and safety of the power supply.

[0003] A patent with publication number CN116699295A discloses a device for testing the durability of liquid crystal meters. The device comprises a main body, a high-temperature box and a low-temperature box mounted on the outer walls of the main body, a dust box mounted on the back of the main body, a sealing door mounted on the front of the main body, a spray mechanism mounted on the top of the main body, a filter plate mounted inside the main body, and a clamping mechanism mounted on the top of the filter plate. In this invention, the high-temperature box and the low-temperature box are provided, and hot and cold air are introduced into the interior of the main body of the device for a period of time with the help of a fan and an exhaust duct, simulating the use of the liquid crystal meter in high and low temperature environments, thereby determining whether the liquid crystal meter's high and low temperature resistance performance is qualified. Furthermore, the dust box is provided to introduce sand and dust into the interior of the main body of the device, thereby determining whether the liquid crystal meter's wind and sand resistance performance is qualified. This allows the device to test multiple performance characteristics of the liquid crystal meter.

[0004] While existing instrument durability testing devices can use a dust chamber to simulate a sandstorm environment to test the sandstorm resistance of LCD instruments, they suffer from significant drawbacks. Some windblown sand can adhere to the display screen. This is because, despite being relatively smooth, LCD screens still have tiny bumps and uneven surfaces that generate static electricity. Airflow and static electricity attract sand particles, which easily cling to them. After testing, this adhered sand must be manually cleaned off piece by piece. This process is extremely tedious, time-consuming, and labor-intensive, and can also cause secondary damage to the display screen due to improper cleaning, impacting test efficiency and accuracy.

[0005] To this end, the present invention provides a device for detecting the durability of an instrument. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: an instrument durability detection device according to the present invention comprises a machine body, a sandblasting assembly is provided on one side of the machine body, the sandblasting assembly comprises a fixed box fixedly connected to one side of the machine body, a connecting pipe is fixedly connected to one side of the fixed box, the connecting pipe is a telescopic connecting pipe, one end of the connecting pipe is fixedly connected to a fixed plate, a plurality of first hydraulic cylinders are fixedly connected to the upper surface of the fixed plate, a rotating shaft is fixedly connected to the circumferential surface of the rotating shaft with a rotating plate rotatably connected, a plurality of spray holes are opened on the lower surface of the fixed plate, the rotating plate seals the spray holes, and auxiliary boxes are provided on both sides of the machine body; The body is provided with an adjustment assembly, which includes a fixed frame fixedly connected to both sides of the inner wall of the body, a reciprocating screw rod is rotatably connected to the fixed frame, a slider is slidably connected to the circumferential surface of the reciprocating screw rod, a slide plate is fixedly connected between the two sliders, a sliding groove is provided on the surface of the slide plate, a reciprocating screw rod is rotatably connected in the sliding groove, two sliding plates are slidably connected to the circumferential surface of the reciprocating screw rod, one side of each sliding plate is rotatably connected to an auxiliary plate, one side of the auxiliary plate is rotatably connected to a slot plate, and a plurality of grooves are provided on the surface of the slot plate; A scraping assembly is further provided on the upper surface of the slide. The scraping assembly includes two fixing frames fixedly connected to the upper surface of the slide. A connecting plate made of silicone material is slidably connected to each fixing frame.

[0008] Preferably, the adjustment assembly further comprises a fixed motor fixedly connected to one side of the sliding plate, an output end of the fixed motor is fixedly connected to a gear, an auxiliary gear is fixedly connected to one side of the auxiliary plate, and the auxiliary gear is meshed with the gear.

[0009] Preferably, a connecting frame is fixedly connected to one side of the auxiliary plate, an arc-shaped groove is opened on the circumferential surface of the connecting frame, a slot plate is slidably connected in the arc-shaped groove, a gear half ring is also fixedly connected to the circumferential surface of the connecting frame, one end of the slot plate is fixedly connected to a micro motor, the output end of the micro motor is fixedly connected to a worm, and the worm is meshed with the gear half ring.

[0010] Preferably, when testing the LCD screen, the LCD screen is placed between two slot plates, and the two sliding plates are driven closer to clamp the LCD screen, and then the fixed motor is driven to rotate, and then the auxiliary gear is driven by the gear to drive the auxiliary plate to rotate, thereby adjusting the angle of the LCD screen to assist in testing the brightness uniformity of the LCD screen.

[0011] Preferably, the slot plate is made of rubber slot material. When the LCD screen is stuck between the two slot plates, the worm is driven to rotate by a micro motor. The rotation of the worm causes the slot plate to rotate along the gear half ring, while the slot plate on the other side drives in the opposite direction to adjust the angle of the LCD screen. The auxiliary gear is driven to rotate by a fixed motor to adjust the angle. The groove on one side of the slot plate assists the LCD screen in adjusting the angle.

[0012] Preferably, the scraping assembly includes a rotating groove opened on one side of the fixed frame, the rotating groove is rotatably connected to a hook plate, one side of the hook plate is fixedly connected to a connecting frame, connecting grooves are opened on both sides of the inner wall of the connecting frame, a connecting screw is rotatably connected in the connecting groove, one end of the connecting frame is fixedly connected to a positioning box, one side of the positioning box is fixedly connected to an auxiliary motor, the output end of the auxiliary motor is fixedly connected to the connecting screw, a connecting plate is slidably connected to the circumferential surface of the connecting screw, and a cone plate is elastically connected to the inside of the connecting wire plate.

[0013] Preferably, the cone plate is a silicone cone plate, an auxiliary groove is opened on one side of the connecting plate, a plurality of springs are fixed in the auxiliary groove, and one end of the plurality of springs is fixed to the same silicone cone plate for scraping off gravel on the surface of the LCD screen.

[0014] Preferably, after the wind and sand resistance test of the LCD screen is completed, the angle is adjusted by adjusting the component to perform a brightness uniformity test. During the angle adjustment process, one end of the LCD screen will squeeze the hook plate, and the rotation of the hook plate will make the connecting frame fit the LCD screen. The connecting screw is then driven to rotate by the auxiliary motor, and then the connecting screw drives the connecting plate to slide up and down to scrape off the sand and gravel adhered to the surface of the LCD screen.

[0015] Preferably, the circumferential surface of the connecting screw rod is also slidably connected to a positioning plate, a fixing rod is fixed between the positioning rod and the connecting plate, two connecting columns are fixed to the surface of the positioning plate, auxiliary holes are opened on the circumferential surface of the connecting columns, the connecting columns pass through the positioning box, and the top ends of the two connecting columns are fixed with a silicone top plate, and the silicone top plate scrapes the upper half of the LCD screen.

[0016] Preferably, when the connecting screw drives the connecting plate, it drives the positioning plate to slide along the connecting screw. The sliding of the positioning plate drives the connecting column on its surface to slide through the positioning box until the auxiliary hole is connected to the positioning box. Then the jet pump in the positioning box pressurizes gas into the connecting column, and then the gas is ejected from the side of the positioning plate close to the connecting plate, and also passes into the top plate and is ejected from one side of the top plate to blow away the scraped sand and gravel.

[0017] The beneficial effects of the present invention are as follows: 1. The instrument durability testing device described in the present invention can flexibly adjust the sandblasting position and height through the telescopic connecting tube and the first hydraulic cylinder of the sandblasting component. The rotating plate seals the spray hole to prevent sand leakage, thereby improving the accuracy and safety of sandblasting testing. The adjustment component moves the slide plate and the sliding plate through the cooperation of the reciprocating lead screw and the reciprocating screw, driving the multi-position adjustment of the instrument, more comprehensively simulating the actual use of the instrument, and accurately testing its durability. The silicone connecting plate of the scraping component can effectively scrape sand off the surface of the instrument, preventing sand residue from affecting subsequent testing or instrument performance, thereby ensuring the reliability of the test results. Overall, the detection quality and efficiency are improved.

[0018] 2. The instrument durability testing device described in the present invention achieves clamping and firm fixation by driving the sliding plates closer together, thereby preventing the display screen from shifting and affecting the results during testing. The auxiliary plate is driven to rotate by a fixed motor, gears, and auxiliary gears, and a micro motor, worm gear, and other structures are used to enable the slot plate to drive the display screen for multi-angle adjustment, thereby comprehensively testing its brightness uniformity and accurately detecting brightness difference problems. The rubber slot plate not only provides buffering protection during clamping to prevent damage to the display screen, but the grooves provided therein also assist in angle adjustment, making the adjustment process smoother and more stable. The combination of multiple angle adjustment methods greatly improves the comprehensiveness and accuracy of the test, ensuring that the quality of the LCD screen meets the standards.

[0019] 3. The instrument durability testing device described in the present invention, after the LCD screen completes the wind and sand resistance test, when the angle is adjusted for the brightness uniformity test, the screen squeezes the hook plate to make the connecting frame fit the screen, preparing for the subsequent scraping operation. The auxiliary motor drives the connecting screw to rotate, causing the connecting plate to slide up and down. The silicone cone plate inside the connecting plate can effectively scrape away sand and gravel adhered to the surface of the screen. The silicone material is soft and can prevent scratches on the screen. At the same time, the silicone cone plate connected by the spring inside the connecting plate has a certain degree of elasticity, which can adapt to screens with different surface flatness and ensure effective scraping. This design not only ensures the consistency of the testing process, but also efficiently removes sand and gravel, ensures the accuracy of brightness uniformity testing, and improves the quality and efficiency of testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is a perspective view of embodiment 1 of the present invention; Figure 2 It is a schematic diagram of the internal structure of the body of the present invention; Figure 3 It is a structural schematic diagram of the sandblasting assembly of the present invention; Figure 4 Schematic diagram of the internal structure of the sandblasting assembly of the present invention; Figure 5It is a schematic structural diagram of the angle adjustment component and the scraping component of the present invention; Figure 6 It is a structural schematic diagram of the angle adjustment assembly of the present invention; Figure 7 It is a structural schematic diagram of the scraping assembly of the present invention; Figure 8 is a cross-sectional view of the connecting plate of the present invention; In the figure: 1, machine body; 11, fixed frame; 12, slider; 13, reciprocating screw; 14, slide plate; 15, sliding groove; 16, sliding plate; 17, fixed motor; 18, auxiliary plate; 19, fixed frame; 110, auxiliary gear; 111, connecting frame; 112, arc groove; 113, gear half ring; 114, groove plate; 115, micro motor; 116, worm; 117, groove; 118, rotating groove; 119, hook plate; 120, connecting frame; 121, connecting groove; 122, connecting screw; 123, connecting plate; 124, fixed rod; 125, positioning plate; 126, connecting column; 127, top plate; 128, auxiliary hole; 129, positioning box; 130, auxiliary motor; 131, auxiliary groove; 132, spring; 133, cone plate; 2. Fixed box; 21. First hydraulic cylinder; 22. Fixed plate; 23. Connecting pipe; 24. Rotating plate; 25. Spray hole; 26. Rotating shaft; 3. Auxiliary box. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] Example 1: Figures 1 to 8As shown, an instrument durability detection device according to an embodiment of the present invention includes a body 1, a sandblasting assembly is provided on one side of the body 1, the sandblasting assembly includes a fixed box 2 fixedly connected to one side of the body 1, a connecting pipe 23 is fixedly connected to one side of the fixed box 2, the connecting pipe 23 is a telescopic connecting pipe 23, one end of the connecting pipe 23 is fixedly connected to a fixed plate 22, a plurality of first hydraulic cylinders 21 are fixedly connected to the upper surface of the fixed plate 22, both ends of the fixed plate 22 are fixedly connected to a rotating shaft 26, a rotating plate 24 is rotatably connected to the circumferential surface of the rotating shaft 26, a plurality of spray holes 25 are opened on the lower surface of the fixed plate 22, the rotating plate 24 seals the spray holes 25, and auxiliary boxes 3 are provided on both sides of the body 1; an adjustment assembly is provided inside the body 1, the adjustment assembly includes a fixed plate 22 fixedly connected to the body 1 The fixed frame 11 on both sides of the inner wall has a reciprocating screw 13 rotatably connected inside the fixed frame 11, and the circumferential surface of the reciprocating screw 13 is slidably connected to the slider 12, and a slide plate 14 is fixed between the two sliders 12. A sliding groove 15 is provided on the surface of the slide plate 14, and a reciprocating screw is rotatably connected in the sliding groove 15. Two sliding plates 16 are slidably connected to the circumferential surface of the reciprocating screw, and one side of each sliding plate 16 is rotatably connected to an auxiliary plate 18, and one side of the auxiliary plate 18 is rotatably connected to a slot plate 114, and a plurality of grooves 117 are provided on the surface of the slot plate 114; a scraping assembly is also provided on the upper surface of the slide plate 14, and the scraping assembly includes two fixing frames 19 fixed to the upper surface of the slide plate 14, and each fixing frame 19 is slidably connected to a connecting plate 123 made of silicone material.

[0024] Specifically, in existing instrument durability testing devices, although a sandbox can be used to simulate a sandstorm environment to test the wind and sand resistance of LCD instruments, there are obvious drawbacks. This is because some wind and sand will adhere to the display screen. The reason why wind and sand adhere to the LCD screen is that although the surface of the LCD screen is relatively smooth, there are still tiny bumps and static electricity. The wind and sand particles are easily attached to it under the action of airflow and static electricity. After the test, these adhered wind and sand need to be cleaned manually one by one. The cleaning process is extremely cumbersome, not only consuming a lot of time and manpower, but also may cause secondary damage to the display screen due to improper cleaning, affecting the test efficiency and the accuracy of the results. Therefore, the present invention sets the above structure to solve the above problem. First, when the instrument durability detection device is working, in the sandblasting assembly, the telescopic connecting tube 23 can adjust the position of the fixed plate 22, and the first hydraulic cylinder 21 can adjust the height of the fixed plate 22. The rotating plate 24 rotates around the rotating shaft 26 to open or seal the spray hole 25. When opened, the sand material is sprayed out from the spray hole 25 through the connecting tube 23 to perform sandblasting detection on the instrument. In the adjustment assembly, the reciprocating screw 13 rotates to make the slider 12 drive the slide plate 14 to move back and forth in the fixed frame 11. At the same time, the reciprocating screw rotates to make the two sliding plates 16 slide in the sliding groove 15, driving the auxiliary plate 18 and the slot plate 114 to move. The instrument is placed in the groove 117 of the slot plate 114 to achieve multi-position adjustment and simulate different usage scenarios. In the scraping assembly, the connecting plate 123 made of silicone material slides on the fixed frame 19, which can scrape and clean the sand material on the surface of the instrument after detection; The sandblasting position and height can be flexibly adjusted through the telescopic connecting tube 23 and the first hydraulic cylinder 21 of the sandblasting assembly. The rotating plate 24 seals the spray hole 25 to avoid sand leakage, thereby improving the accuracy and safety of sandblasting detection. The adjustment assembly moves the slide plate 14 and the sliding plate 16 through the cooperation of the reciprocating screw 13 and the reciprocating screw, driving the multi-position adjustment of the instrument, more comprehensively simulating the actual use of the instrument, and accurately detecting its durability. The silicone connecting plate 123 of the scraping assembly can effectively scrape off the sand on the surface of the instrument, preventing the residual sand from affecting subsequent detection or instrument performance, thereby ensuring the reliability of the detection results. Overall, the detection quality and efficiency are improved.

[0025] like Figure 3 As shown, the adjustment component of this embodiment also includes a fixed motor 17 fixed to one side of the sliding plate 16, and the output end of the fixed motor 17 is fixed with a gear. An auxiliary gear 110 is fixed to one side of the auxiliary plate 18, and the auxiliary gear 110 is engaged with the gear. A connecting frame 111 is fixed to one side of the auxiliary plate 18, and an arc groove 112 is provided on the circumferential surface of the connecting frame 111. A slot plate 114 is slidably connected in the arc groove 112. A gear half ring 113 is also fixed to the circumferential surface of the connecting frame 111, and one end of the slot plate 114 is fixed to a micro motor 115. The output end of the micro motor 115 is fixed to a worm 116, and the worm 116 is engaged with the gear half ring 113.

[0026] Specifically, when testing the LCD screen, the LCD screen is placed between the two slot plates 114, and the two sliding plates 16 are driven to approach to clamp the LCD screen. Then, the fixed motor 17 is driven to rotate, and then the auxiliary gear 110 is driven by the gear to drive the auxiliary plate 18 to rotate, so as to adjust the angle of the LCD screen and assist in testing the brightness uniformity of the LCD screen. In addition, the slot plate 114 is made of rubber. When the LCD screen is stuck between the two slot plates 114, the micro motor 115 drives the worm 116 to rotate. The rotation of the worm 116 causes the slot plate 114 to rotate along the gear half ring 113, and the slot plate 114 on the other side is driven in the opposite direction to adjust the angle of the LCD screen. The fixed motor 17 drives the gear to drive the auxiliary gear 110 to rotate for angle adjustment. The groove 117 opened on one side of the slot plate 114 assists in adjusting the angle of the LCD screen. By driving the sliding plate 16 closer to achieve clamping and firm fixation, the display screen is prevented from shifting and affecting the results during detection. The auxiliary plate 18 is driven to rotate by the fixed motor 17, gears and auxiliary gears 110, and the micro motor 115, worm 116 and other structures are used to enable the slot plate 114 to drive the display screen to adjust at multiple angles, which can comprehensively test its brightness uniformity and accurately detect brightness difference problems. The rubber slot plate 114 not only provides buffer protection during clamping to prevent damage to the display screen, but the groove 117 it opens also assists in angle adjustment, making the adjustment process smoother and more stable. The combination of multiple angle adjustment methods greatly improves the comprehensiveness and accuracy of the detection, ensuring that the quality of the LCD screen meets the standards.

[0027] Example 2: Figures 1 to 8 As shown, in contrast to Example 1, another embodiment of the present invention is as follows: the scraping assembly includes a rotating groove 118 opened on one side of the fixed frame 19, the rotating groove 118 is rotatably connected to a hook plate 119, one side of the hook plate 119 is fixedly connected to a connecting frame 120, both sides of the inner wall of the connecting frame 120 are provided with connecting grooves 121, a connecting screw 122 is rotatably connected in the connecting groove 121, one end of the connecting frame 120 is fixedly connected to a positioning box 129, and one side of the positioning box 129 is fixedly connected to an auxiliary motor 130. The output end of the auxiliary motor 130 is fixedly connected to the connecting screw 122. A connecting plate 123 is slidably connected to the circumferential surface of the connecting screw 122. A cone plate 133 is elastically connected inside the connecting screw plate. The cone plate 133 is a silicone cone plate 133. An auxiliary groove 131 is formed on one side of the connecting plate 123. Several springs 132 are fixedly connected in the auxiliary groove 131. One end of each spring 132 is fixedly connected to the same silicone cone plate 133, which is used to scrape sand and gravel off the surface of the LCD screen.

[0028] Specifically, after the wind and sand resistance test of the LCD screen is completed, the angle is adjusted by the adjustment component to perform a brightness uniformity test. During the angle adjustment process, one end of the LCD screen will press the hook plate 119. The rotation of the hook plate 119 causes the connecting frame 120 to fit the LCD screen. The auxiliary motor 130 then drives the connecting screw 122 to rotate, and the connecting screw 122 then drives the connecting plate 123 to slide up and down, scraping off the sand and gravel adhered to the surface of the LCD screen. After the LCD screen completes the wind and sand resistance test, when the angle is adjusted for brightness uniformity testing, the screen squeezes the hook plate 119 to make the connecting frame 120 fit the screen, preparing for the subsequent scraping operation. The auxiliary motor 130 drives the connecting screw 122 to rotate, driving the connecting plate 123 to slide up and down. The silicone cone plate 133 inside the connecting plate 123 can effectively scrape off the sand and gravel adhered to the surface of the screen. The silicone material is soft and can avoid scratching the screen. At the same time, the silicone cone plate 133 connected by the spring 132 inside the connecting plate 123 has a certain degree of elasticity and can adapt to screens with different surface flatness to ensure the scraping effect. This design effectively removes sand and gravel while ensuring the continuity of the testing process, ensuring the accuracy of brightness uniformity testing and improving the quality and efficiency of testing.

[0029] like Figure 4 As shown, the circumferential surface of the connecting screw rod 122 of this embodiment is also slidably connected to a positioning plate 125, and a fixing rod 124 is fixed between the positioning rod and the connecting plate 123. Two connecting columns 126 are fixed to the surface of the positioning plate 125, and auxiliary holes 128 are opened on the circumferential surface of the connecting columns 126. The connecting columns 126 pass through the positioning box 129, and the top ends of the two connecting columns 126 are fixed with a silicone top plate 127, which scrapes the upper half of the LCD screen.

[0030] Specifically, while the connecting screw 122 drives the connecting plate 123 to scrape off the sand, it also drives the positioning plate 125 to slide, thereby causing the connecting column 126 to move through the positioning box 129. When the auxiliary hole 128 is connected to the positioning box 129, the pressurized gas of the jet pump is ejected from one side of the positioning plate 125 and the silicone top plate 127. This process can not only cooperate with the silicone cone plate 133 to perform secondary blowing off of the sand on the surface of the LCD screen, thereby enhancing the scraping effect, ensuring that the surface of the screen is clean and free of residue, and ensuring the accuracy of subsequent inspections; but also the silicone top plate 127 can avoid scratching the screen during scraping. The jet blowing method of removing sand is efficient and will not cause secondary damage to the screen, effectively improving the inspection efficiency and quality, and reducing the risk of damage to the screen during the inspection process.

[0031] Working principle: First, when the instrument durability detection device is working, in the sandblasting assembly, the telescopic connecting tube 23 can adjust the position of the fixed plate 22, the first hydraulic cylinder 21 can adjust the height of the fixed plate 22, and the rotating plate 24 rotates around the rotating shaft 26 to open or seal the spray hole 25. When opened, the sand material is sprayed out from the spray hole 25 through the connecting tube 23 to perform sandblasting detection on the instrument. In the adjustment assembly, the reciprocating screw 13 rotates to make the slider 12 drive the slide plate 14 to move back and forth in the fixed frame 11. At the same time, the reciprocating screw rotates to make the two sliding plates 16 slide in the sliding groove 15, driving the auxiliary plate 18 and the slot plate 114 to move. The instrument is placed in the groove 117 of the slot plate 114 to achieve multi-position adjustment and simulate different usage scenarios. In the scraping assembly, the connecting plate 123 made of silicone slides on the fixed frame 19 to scrape and clean the sand material on the surface of the instrument after detection. The sandblasting position and height can be flexibly adjusted through the telescopic connecting tube 23 and the first hydraulic cylinder 21 of the sandblasting assembly. The rotating plate 24 seals the spray hole 25 to prevent sand leakage, thereby improving the accuracy and safety of sandblasting testing. The adjustment assembly moves the slide plate 14 and the sliding plate 16 through the cooperation of the reciprocating screw 13 and the reciprocating screw, driving the multi-position adjustment of the instrument, more comprehensively simulating the actual use of the instrument and accurately testing its durability. The silicone connecting plate 123 of the scraping assembly can effectively scrape sand from the surface of the instrument, preventing sand residue from affecting subsequent testing or instrument performance, ensuring the reliability of the test results, and overall improving the quality and efficiency of testing. In addition, when testing the LCD screen, the LCD screen is placed between the two slot plates 114, and the two sliding plates 16 are driven to approach to clamp the LCD screen, and then the fixed motor 17 is driven to rotate, and then the auxiliary gear 110 is driven by the gear to drive the auxiliary plate 18 to rotate, so as to adjust the angle of the LCD screen and assist in testing the brightness uniformity of the LCD screen. In addition, the slot plate 114 is made of rubber. When the LCD screen is stuck between the two slot plates 114, the worm 116 is driven to rotate by the micro motor 115. The rotation of the worm 116 causes the slot plate 114 to rotate along the gear half ring 113, and the slot plate 114 on the other side is driven in the opposite direction to adjust the angle of the LCD screen, and the gear is driven by the fixed motor 17 to drive the auxiliary gear 110 to rotate for angle adjustment. The groove 117 opened on one side of the slot plate 114 assists the LCD screen in angle adjustment. By driving the sliding plate 16 closer to achieve clamping, the fixed and stable display screen is prevented from shifting during testing and affecting the results. The auxiliary plate 18 is driven to rotate by the fixed motor 17, gears and auxiliary gears 110. The micro motor 115, worm 116 and other structures enable the slot plate 114 to drive the display screen to adjust at multiple angles, which can comprehensively test its brightness uniformity and accurately detect brightness difference problems. The rubber slot plate 114 not only provides buffer protection during clamping to prevent damage to the display screen, but the groove 117 provided therein also assists in angle adjustment, making the adjustment process smoother and more stable. The combination of multiple angle adjustment methods greatly improves the comprehensiveness and accuracy of the test, ensuring that the quality of the LCD screen meets the standards. Finally, after the wind and sand resistance test of the LCD screen is completed, the angle is adjusted by the adjustment component to perform a brightness uniformity test. During the angle adjustment process, one end of the LCD screen will press the hook plate 119. The rotation of the hook plate 119 causes the connecting frame 120 to fit the LCD screen. The auxiliary motor 130 then drives the connecting screw 122 to rotate, and the connecting screw 122 then drives the connecting plate 123 to slide up and down, scraping off the sand and gravel adhered to the surface of the LCD screen. After the LCD screen completes the wind and sand resistance test, when the angle is adjusted for brightness uniformity testing, the screen squeezes the hook plate 119 to make the connecting frame 120 fit the screen, preparing for the subsequent scraping operation. The auxiliary motor 130 drives the connecting screw 122 to rotate, driving the connecting plate 123 to slide up and down. The silicone cone plate 133 inside the connecting plate 123 can effectively scrape off the sand and gravel adhered to the surface of the screen. The silicone material is soft and can avoid scratching the screen. At the same time, the silicone cone plate 133 connected by the spring 132 inside the connecting plate 123 has a certain degree of elasticity and can adapt to screens with different surface flatness to ensure the scraping effect. This design effectively removes sand and gravel while ensuring the continuity of the testing process, ensuring the accuracy of brightness uniformity testing and improving the quality and efficiency of testing.

[0032] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An instrument durability detection device, comprising a body (1), characterized in that: A sandblasting assembly is provided on one side of the machine body (1), and the sandblasting assembly includes a fixed box (2) fixedly connected to one side of the machine body (1), a connecting pipe (23) fixedly connected to one side of the fixed box (2), the connecting pipe (23) being a telescopic connecting pipe (23), one end of the connecting pipe (23) being fixedly connected to a fixed plate (22), a plurality of first hydraulic cylinders (21) being fixedly connected to the upper surface of the fixed plate (22), both ends of the fixed plate (22) being fixedly connected to a rotating shaft (26), a rotating plate (24) being rotatably connected to the circumferential surface of the rotating shaft (26), a plurality of spray holes (25) being opened on the lower surface of the fixed plate (22), the rotating plate (24) sealing the spray holes (25), and auxiliary boxes (3) are provided on both sides of the machine body; An adjustment component is provided inside the body (1), and the adjustment component includes a fixed frame (11) fixedly connected to both sides of the inner wall of the body (1), a reciprocating screw (13) is rotatably connected inside the fixed frame (11), a slider (12) is slidably connected to the circumferential surface of the reciprocating screw (13), a slide plate (14) is fixedly connected between the two sliders (12), a sliding groove (15) is provided on the surface of the slide plate (14), a reciprocating screw is rotatably connected in the sliding groove (15), two sliding plates (16) are slidably connected to the circumferential surface of the reciprocating screw, one side of each sliding plate (16) is rotatably connected to an auxiliary plate (18), one side of the auxiliary plate (18) is rotatably connected to a slot plate (114), and a plurality of grooves (117) are provided on the surface of the slot plate (114); The upper surface of the slide plate (14) is also provided with a scraping assembly, which includes two fixing frames (19) fixedly connected to the upper surface of the slide plate (14), and each fixing frame (19) is slidably connected to a connecting plate (123) made of silicone material.

2. The instrument durability detection device according to claim 1, characterized in that: The adjustment assembly further comprises a fixed motor (17) fixed to one side of the sliding plate (16), an output end of the fixed motor (17) being fixed to a gear, and an auxiliary gear (110) being fixed to one side of the auxiliary plate (18), the auxiliary gear (110) being meshed with the gear.

3. The instrument durability detection device according to claim 1, characterized in that: A connecting frame (111) is fixedly connected to one side of the auxiliary plate (18), an arc-shaped groove (112) is provided on the circumferential surface of the connecting frame (111), a slot plate (114) is slidably connected in the arc-shaped groove (112), a gear half ring (113) is also fixedly connected to the circumferential surface of the connecting frame (111), one end of the slot plate (114) is fixedly connected to a micro motor (115), an output end of the micro motor (115) is fixedly connected to a worm (116), and the worm (116) is meshed with the gear half ring (113).

4. The instrument durability detection device according to claim 3, characterized in that: When testing the liquid crystal display screen, the liquid crystal display screen is placed between the two slot plates (114), and the two sliding plates (16) are driven to approach to clamp the liquid crystal display screen, and then the fixed motor (17) is driven to rotate, and then the auxiliary gear (110) is driven by the gear to drive the auxiliary plate (18) to rotate, thereby adjusting the angle of the liquid crystal display screen and assisting in testing the brightness uniformity of the liquid crystal display screen.

5. The instrument durability detection device according to claim 4, characterized in that: The slot plate (114) is made of a rubber slot material. When the liquid crystal display screen is stuck between the two slot plates (114), the micro motor (115) drives the worm (116) to rotate. The rotation of the worm (116) causes the slot plate (114) to rotate along the gear half ring (113), while the slot plate (114) on the other side drives in the opposite direction to adjust the angle of the liquid crystal display screen. The fixed motor (17) drives the gear to drive the auxiliary gear (110) to rotate for angle adjustment. The groove (117) opened on one side of the slot plate (114) assists the liquid crystal display screen in angle adjustment.

6. The instrument durability detection device according to claim 1, characterized in that: The scraping assembly includes a rotating groove (118) provided on one side of a fixed frame (19), the rotating groove (118) is rotatably connected to a hook plate (119), one side of the hook plate (119) is fixedly connected to a connecting frame (120), both sides of the inner wall of the connecting frame (120) are provided with connecting grooves (121), a connecting screw rod (122) is rotatably connected in the connecting groove (121), one end of the connecting frame (120) is fixedly connected to a positioning box (129), one side of the positioning box (129) is fixedly connected to an auxiliary motor (130), an output end of the auxiliary motor (130) is fixedly connected to the connecting screw rod (122), a connecting plate (123) is slidably connected to the circumferential surface of the connecting screw rod (122), and a cone plate (133) is elastically connected to the inside of the connecting wire plate.

7. The instrument durability detection device according to claim 6, characterized in that: The cone plate (133) is a silicone cone plate (133), and an auxiliary groove (131) is provided on one side of the connecting plate (123). A plurality of springs (132) are fixedly connected in the auxiliary groove (131), and one end of the plurality of springs (132) is fixedly connected to the same silicone cone plate (133), which is used to scrape sand and gravel off the surface of the liquid crystal display screen.

8. The instrument durability detection device according to claim 6, characterized in that: After the wind and sand resistance test of the LCD screen is completed, the angle is adjusted by the adjustment component to perform a brightness uniformity test. During the angle adjustment process, one end of the LCD screen will squeeze the hook plate (119). The rotation of the hook plate (119) causes the connecting frame (120) to fit the LCD screen. The auxiliary motor (130) then drives the connecting screw (122) to rotate, and then the connecting screw (122) drives the connecting plate (123) to slide up and down, thereby scraping off the sand and gravel adhering to the surface of the LCD screen.

9. The instrument durability detection device according to claim 6, characterized in that: The circumferential surface of the connecting screw rod (122) is also slidably connected to a positioning plate (125), a fixing rod (124) is fixed between the positioning rod and the connecting plate (123), two connecting columns (126) are fixed to the surface of the positioning plate (125), auxiliary holes (128) are opened on the circumferential surface of the connecting columns (126), the connecting columns (126) pass through the positioning box (129), and the top ends of the two connecting columns (126) are fixed with a silicone top plate (127), and the silicone top plate (127) scrapes the upper half of the liquid crystal display screen.

10. The instrument durability detection device according to claim 9, characterized in that: When the connecting screw (122) drives the connecting plate (123), the positioning plate (125) is driven to slide along the connecting screw (122). The sliding of the positioning plate (125) drives the connecting column (126) on its surface to slide through the positioning box (129) until the auxiliary hole (128) is connected to the positioning box (129). Then, the jet pump in the positioning box (129) pressurizes gas into the connecting column (126). Then, the gas is ejected from the side of the positioning plate (125) close to the connecting plate (123), and also passes into the top plate (127). It is ejected from one side of the top plate (127) to blow away the scraped gravel.

Images