LED screen anti-scratch performance detection device

Abstract

The invention discloses an LED screen anti-scratch performance detection device, and particularly relates to the technical field of LED screen performance detection.The LED screen anti-scratch performance detection device comprises an operation table, a moving mechanism is fixedly connected to the middle of the upper end of the operation table, a detection mechanism is fixedly connected to the right side of the upper end of the operation table, and a fixing mechanism is slidably connected to the middle of the upper end of the operation table; the left side of the upper end of the console is fixedly connected with a pushing mechanism. According to the LED screen anti-scratch performance detection device, the positions of the rubber protruding block and the soft brush can be converted through cooperation of the first gear and the third rack, the LED screen can be cleaned before an experiment is started, the LED screen can be pushed out and discharged after the experiment is finished, the angle of the detection pen is converted through cooperation of the first rack and the second gear, and the detection efficiency is improved. And meanwhile, the round roller rotates through the cooperation of the rack II and the gear III, so that the position of the LED screen can be adjusted after one test, two scratches are not at the same position, and the performance of the LED screen scratched by different hardness can be conveniently compared.

Description

Technical Field

[0001] The present invention relates to the technical field of LED screen performance detection, and in particular to a device for detecting the anti-scratch performance of an LED screen. Background Art

[0002] As an important part of electronic products, LED screens often face challenges from various external physical factors, such as scratches and friction. These factors may cause damage to the screen surface, which in turn affects the display effect and user experience. Therefore, through anti-scratch performance testing, the scratch resistance of LED screens under certain external forces can be evaluated, thereby ensuring the quality and reliability of the product.

[0003] Chinese patent announcement number CN216747225U discloses a device for detecting the scratch resistance of an LED screen, comprising a main body, a bidirectional threaded rod rotatably connected at the middle position of one side of the main body, and the bidirectional threaded rod extends to the outside of the main body, and the two sides of the outer side of the bidirectional threaded rod are symmetrically meshed with internal threaded sleeves, and the top of the internal threaded sleeve is fixedly connected with a clamping assembly, and the top of one end of the back of the main body is fixedly connected with a slide groove B, and the inside of the slide groove B is slidably connected with a slider B, and the top of the slider B is fixedly connected with a support column, and the two sides of the bottom of the support column are symmetrically fixed with slide grooves D. The device in the above document drives the stroke rod to perform a stroke detection on the LED screen by pulling the support column. During the stroke process, the downward pressure on the stroke rod is increased by inserting it into the inside of the counterweight block, which facilitates the operator to detect different data, thereby making the operator more accurate in detection.

[0004] However, the device in the above-mentioned document cannot achieve the problem of adjusting the position of the LED screen during the test so that different scratches are located at different positions on the LED screen. Summary of the invention

[0005] The main purpose of the present invention is to provide a device for detecting the anti-scratch performance of an LED screen, which can effectively solve the problem that it is impossible to adjust the position of the LED screen during the test so that scratches of different hardness are located at different positions.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A device for detecting the anti-scratch performance of an LED screen comprises an operating table, a moving mechanism is fixedly connected to the middle of the upper end of the operating table, a detection mechanism is fixedly connected to the right side of the upper end of the operating table, a fixing mechanism is slidably connected to the middle of the upper end of the operating table, and a pushing mechanism is fixedly connected to the left side of the upper end of the operating table.

[0008] Preferably, a guide rail is fixedly connected to the middle part of the upper end of the operating platform, a motor is fixedly connected to the middle part of the upper end of the operating platform, a guide groove is fixedly connected to the middle part of the upper end of the operating platform located above the motor, and a hydraulic cylinder is rotatably connected to the right side of the upper end of the operating platform.

[0009] Preferably, the detection mechanism includes a fixed plate fixedly connected to the right side of the upper end of the operating table, a baffle plate is fixedly connected to the upper side of the right end of the fixed plate, a fixed roller is fixedly connected to the rear part of the upper right end of the fixed plate, a round roller is rotatably connected to the lower side of the right end of the fixed plate, a fixed rod is provided on the upper side of the left end of the fixed plate, a detection pen is fixedly connected to the left end of the fixed rod, the right end of the fixed rod is rotatably connected to the round rod, and the fixed roller is transmission-connected to the round roller.

[0010] Preferably, the middle part of the outer surface of the fixed rod is rotatably connected to the output end of the hydraulic cylinder, the right side of the outer surface of the fixed rod is fixedly connected to gear 2, a limiting hole is provided on the upper side of the left end of the fixed plate, the right side of the outer surface of the fixed rod is tightly attached to the inner surface of the limiting hole, a rack 1 is fixedly connected to the upper side of the left end of the fixed plate, the rear side of the rack 1 can be meshed with the outer surface of gear 2, a limiting groove 1 is provided on the left end of the baffle 1, the right side of the outer surface of the round rod is tightly attached to the inner surface of the limiting groove 1, the middle part of the outer surface of the round rod is fixedly connected to rack 2, and the middle part of the outer surface of the fixed roller is fixedly connected to gear 3.

[0011] Preferably, the fixing mechanism includes a bidirectional screw rod 2 fixedly connected to the left end of the round roller, the outer surface of the bidirectional screw rod 2 is slidably connected to a base, the upper end of the base is symmetrically slidably connected to a U-shaped plate, a rectangular seat is fixedly connected to the middle part of the upper end of the base located on the inner surfaces of the two U-shaped plates, and a pressure sensor is fixedly connected to the middle part of the upper end of the rectangular seat.

[0012] Preferably, rectangular grooves are provided on the front and rear sides of the base, a rack three is fixedly connected to the left side of the rear side of the base, the inner surface of the rectangular groove is slidably connected to the matching guide rail, the two U-shaped plates are symmetrically fixedly connected to one end away from each other with a rectangular slider, the upper ends of the two U-shaped plates are symmetrically fixedly connected to springs, the upper ends of the four springs are fixedly connected to a fixed cross plate, the lower ends of the four fixed cross plates close to each other are fixedly connected to a rubber pad, and the lower ends of the four rubber pads are tightly attached to the upper end of the rectangular seat.

[0013] Preferably, the moving mechanism includes a bidirectional screw rod fixedly connected to the output end of the motor, a moving rod is slidably connected to the rear side of the outer surface of the bidirectional screw rod, the upper part of the outer surface of the moving rod is tightly attached to the inner surface of the guide groove, a push rod is fixedly connected to the left side of the lower part of the outer surface of the moving rod, and a rectangular plate is rotatably connected to the right side of the lower part of the outer surface of the moving rod.

[0014] Preferably, a soft brush is fixedly connected to the lower end of the rectangular plate, a rubber bump is fixedly connected to the front end of the rectangular plate, a gear one is fixedly connected to the left side of the outer surface of the rectangular plate, and the outer surface of the gear one can mesh with the upper end of the rack three.

[0015] Preferably, the pushing mechanism includes a baffle plate 2 fixedly connected to the front end of the push rod, a telescopic plate fixedly connected to the upper end of the baffle plate 2, an airbag 1 fixedly connected to the front end of the baffle plate 2, an trachea fixedly connected to the right side of the outer surface of the airbag 1, eight airbags 2 fixedly connected to the output end of the trachea, a telescopic tube fixedly connected to the outer surfaces of two airbags 2 on the same side, and a rectangular cross plate fixedly connected to the upper ends of the two telescopic tubes on the same side.

[0016] Preferably, a second limiting groove is provided on one side of the two rectangular horizontal plates close to each other, and the outer surfaces of the two rectangular sliding blocks on the same side are slidably connected to the inner surface of the second limiting groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can convert the positions of the rubber bump and the soft brush by cooperating the gear 1 with the rack 3, so that the LED screen can be cleaned before the experiment starts, reducing the interference of external factors on the test results and improving the accuracy and reliability of the test. The LED screen can also be pushed out for unloading after the experiment without complicated disassembly or moving steps, thereby improving the efficiency of the end of the experiment. The angle of the test pen can be converted by cooperating the rack 1 with the gear 2, so that tests of different hardness can be carried out quickly and the test time can be saved. At the same time, the round roller can be rotated by cooperating the rack 2 and the gear 3, so that the position of the LED screen can be adjusted after a test, so that the two scratches are not in the same position, which is convenient for comparing the performance of the LED screen after scratches of different hardness.

[0019] 2. The present invention performs scratch performance tests of different hardness on the LED screen through the structure in the operating table and the detection mechanism. During the test, the parameters of the scratch test such as pressure, speed, scratch length, etc. remain unchanged. Before the test starts, the LED screen is cleaned by the moving mechanism in cooperation with the pushing mechanism. After the test, the moving mechanism cooperates with the pushing mechanism and the fixing mechanism to push the LED screen that has passed the scratch tests of different hardness forward to facilitate the analysis of the test conditions of the screen after the test. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It is another perspective overall structural schematic diagram of the present invention;

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

[0023] Figure 4 It is a structural schematic diagram of the fixing mechanism assembly of the present invention;

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

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the detection mechanism component of the present invention;

[0026] Figure 7 It is a structural schematic diagram of another viewing angle detection mechanism component of the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the moving mechanism assembly of the present invention;

[0028] Fig. 9 For the present invention Figure 8 The enlarged structural diagram at A in the middle;

[0029] Fig.10 This is a schematic diagram of the structure of the push mechanism assembly of the present invention;

[0030] Fig.11 For the present invention Fig.10 Enlarged structural diagram at B in the middle.

[0031] In the figure: 1. operating table; 11. guide rail; 13. motor; 14. hydraulic cylinder; 15. guide groove; 2. moving mechanism; 21. two-way screw rod 1; 22. moving rod; 23. push rod; 24. rectangular plate; 241. gear 1; 242. soft brush; 243. rubber bump; 3. detection mechanism; 31. fixed rod; 311. gear 2; 32. detection pen; 33. fixed plate; 331. limit hole; 332. rack 1; 34. round roller; 35. round rod; 351. rack 2; 36. fixed roller; 361. Gear three; 37, baffle one; 371, limit slot one; 4, fixing mechanism; 41, base; 411, rectangular slot; 412, rack three; 42, U-shaped plate; 421, rectangular slider; 422, spring; 423, fixed horizontal plate; 424, rubber pad; 43, rectangular seat; 44, pressure sensor; 45, two-way screw rod two; 5, pushing mechanism; 51, baffle two; 52, telescopic plate; 53, airbag one; 54, air pipe; 55, rectangular horizontal plate; 551, limit slot two; 56, telescopic tube; 57, airbag 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 device for detecting the anti-scratch performance of an LED screen includes an operating table 1, a moving mechanism 2 is fixedly connected to the middle of the upper end of the operating table 1, a detection mechanism 3 is fixedly connected to the right side of the upper end of the operating table 1, a fixing mechanism 4 is slidably connected to the middle of the upper end of the operating table 1, and a pushing mechanism 5 is fixedly connected to the left side of the upper end of the operating table 1.

[0034] During the specific implementation of the above-mentioned device, the LED screen to be tested for performance is fixed by the fixing mechanism 4, and then the LED screen is tested using different hardnesses by the testing mechanism 3. At the same time, the moving mechanism 2 cooperates with the pushing mechanism 5 to clean and wipe the screen before the test begins, and they cooperate with each other to push out the screen after the test to facilitate unloading.

[0035] See also Figure 3 A guide rail 11 is fixedly connected to the middle of the upper end of the operating platform 1, a motor 13 is fixedly connected to the middle of the upper end of the operating platform 1, a guide groove 15 is fixedly connected to the middle of the upper end of the operating platform 1 above the motor 13, and a hydraulic cylinder 14 is rotatably connected to the right side of the upper end of the operating platform 1.

[0036] Specifically, when the above device is implemented, the guide groove 15 cooperates to limit the position of part of the structure in the moving mechanism 2.

[0037] During the operation of this embodiment, the structure in the operating table 1 cooperates with the detection mechanism 3 to perform scratch performance tests on the LED screen with different hardnesses. During the test, the parameters of the scratch test such as pressure, speed, scratch length, etc. remain unchanged. Before the test starts, the LED screen is cleaned by the moving mechanism 2 in cooperation with the pushing mechanism 5. After the test, the moving mechanism 2 cooperates with the pushing mechanism 5 and the fixing mechanism 4 to push the LED screen that has passed the scratch tests with different hardnesses forward for unloading, so as to facilitate the analysis of the test conditions of the screen after the test.

[0038] Embodiment 2: Based on Embodiment 1, this embodiment is to adjust the position of the LED screen during the test so that scratches with different hardness are located at different positions, thereby facilitating comparison of the performance of the LED screen.

[0039] See also Figure 8 and Fig. 9 The moving mechanism 2 includes a bidirectional screw rod 21 fixedly connected to the output end of the motor 13, a moving rod 22 is slidably connected to the rear side of the outer surface of the bidirectional screw rod 21, the upper part of the outer surface of the moving rod 22 is tightly attached to the inner surface of the guide groove 15, a push rod 23 is fixedly connected to the left side of the lower part of the outer surface of the moving rod 22, and a rectangular plate 24 is rotatably connected to the right side of the lower part of the outer surface of the moving rod 22.

[0040] When the motor 13 is excited, its output end drives the bidirectional screw rod 21 to rotate, and then the moving rod 22 cooperates with the limit of the guide groove 15 to move forward along the bidirectional screw rod 21. When the bidirectional screw rod 21 moves forward, it drives the push rod 23 and the rectangular plate 24 to move forward at the same time.

[0041] See also Fig. 9 A soft brush 242 is fixedly connected to the lower end of the rectangular plate 24, a rubber bump 243 is fixedly connected to the front end of the rectangular plate 24, and a gear 1 241 is fixedly connected to the left side of the outer surface of the rectangular plate 24. The outer surface of the gear 1 241 can mesh with the upper end of the rack 3 412.

[0042] Furthermore, when the moving rod 22 moves to the front end of the bidirectional screw rod 21, as the bidirectional screw rod 21 rotates, the moving rod 22 slides backward. At this time, the soft brush 242 wipes the LED screen fixed by the fixing mechanism 4 to prevent dust or oil on its surface from affecting the test.

[0043] See also Fig.10 and Fig.11 The pushing mechanism 5 includes a baffle plate 2 51 fixedly connected to the front end of the push rod 23, a telescopic plate 52 fixedly connected to the upper end of the baffle plate 2 51, an airbag 1 53 fixedly connected to the front end of the baffle plate 2 51, an air pipe 54 fixedly connected to the right side of the outer surface of the airbag 1 53, eight airbags 2 57 fixedly connected to the output end of the air pipe 54, a telescopic tube 56 fixedly connected to the outer surfaces of the two airbags 2 57 on the same side, and a rectangular horizontal plate 55 fixedly connected to the upper ends of the two telescopic tubes 56 on the same side.

[0044] When the push rod 23 is driven by the moving rod 22 to slide forward, the push rod 23 pushes the rear ends of the baffle plate 2 51 and the telescopic plate 52 forward at the same time. At this time, the telescopic plate 52 is gradually compressed, and the baffle plate 2 51 is pushed while squeezing the airbag 1 53 forward, so that the internal gas of the airbag 1 53 is squeezed into the inner surfaces of the eight airbags 2 57 through the air tube 54, and then the eight airbags 2 57 expand at the same time. Due to the cooperation and restriction of the telescopic tube 56 on the airbag 2 57, the airbag 2 57 only expands upward, thereby pushing the rectangular cross plate 55 upward.

[0045] See also Fig.11 The two rectangular horizontal plates 55 are provided with a second limiting groove 551 on one side close to each other, and the outer surfaces of the two rectangular sliding blocks 421 on the same side are slidably connected with the inner surfaces of the second limiting groove 551.

[0046] Furthermore, when the rectangular horizontal plate 55 is pushed upward by the eight airbags 57 in cooperation with the four telescopic tubes 56 , the four rectangular sliding blocks 421 are driven upward at the same time.

[0047] When the moving rod 22 slides backward and drives the push rod 23 to move backward, it drives the rear ends of the baffle plate 2 51 and the telescopic plate 52 to move backward at the same time, and the airbag 1 53 is stretched at the same time. At this time, the gas on the inner surface of the eight airbags 2 57 enters the inner surface of the airbag 1 53 again through the inner surface of the air pipe 54, and then the eight airbags 2 57 will slowly shrink, so that the four telescopic tubes 56 will drive the two rectangular cross plates 55 to move downward at the same time, and then the rectangular slider 421 will slide downward at the same time.

[0048] See also Figure 4 and Figure 5 The fixing mechanism 4 includes a bidirectional screw rod 45 fixedly connected to the left end of the round roller 34, the outer surface of the bidirectional screw rod 45 is slidably connected to a base 41, the upper end of the base 41 is symmetrically slidably connected to a U-shaped plate 42, a rectangular seat 43 is fixedly connected to the middle of the upper end of the base 41 on the inner surface of the two U-shaped plates 42, and a pressure sensor 44 is fixedly connected to the middle of the upper end of the rectangular seat 43.

[0049] The pressure sensor 44 mentioned above is of conventional design in the prior art and is connected to an external power supply during operation. When the above device is in operation, the detection pen 32 is driven to pass across the screen to monitor the pressure on the LED screen in real time, thereby ensuring that only hardness affects the screen, and other influencing factors will not affect the test.

[0050] Specifically, when the LED screen is subjected to scratch tests of different hardness, the LED screen placed above the pressure sensor 44 is fixed by the base 41, the rectangular seat 43 and the U-shaped plate 42. At the same time, the bidirectional screw rod 45 cooperates with the base 41 to make the base 41, the rectangular seat 43 and the LED screen slide to the left, so that the scratches produced by two times of different hardness on the screen are not in the same position, which is convenient for subsequent performance research.

[0051] See also Figure 5 A rectangular groove 411 is provided on the front and rear sides of the base 41, a rack three 412 is fixedly connected to the left side of the rear side of the base 41, the inner surface of the rectangular groove 411 is slidably connected to the matching guide rail 11, and the two U-shaped plates 42 are symmetrically fixedly connected to one end away from each other with a rectangular slider 421, and the upper ends of the two U-shaped plates 42 are symmetrically fixedly connected with springs 422, and the upper ends of the four springs 422 are fixedly connected with a fixed cross plate 423, and the lower ends of the four fixed cross plates 423 close to each other are fixedly connected with a rubber pad 424, and the lower ends of the four rubber pads 424 are tightly attached to the upper end of the rectangular seat 43.

[0052] Specifically, before the test begins, the two rectangular horizontal plates 55 are pushed upward, so that the U-shaped plate 42 can slide upward through the second limiting groove 551 and the two rectangular sliders 421 on the same side, and then the two U-shaped plates 42 will drive the spring 422 and the fixed horizontal plate 423 and the rubber pad 424 to move upward at the same time, and then the LED screen to be tested can be placed above the pressure sensor 44, and at this time, the moving rod 22 drives the rectangular plate 24 and the soft brush 242 to move to the upper front of the base 41;

[0053] Furthermore, when the moving rod 22 drives the rectangular plate 24 and the soft brush 242 to move backward, the eight airbags 2 57 contract to drive the rectangular horizontal plate 55 downward, so that the two U-shaped plates 42 move downward at the same time, and then the lower ends of the four rubber pads 424 are tightly attached to the upper end of the LED screen. When the U-shaped plate 42 is driven to continue to slide down until it is tightly attached to the upper end of the base 41, the spring 422 is stretched, so that the four groups of fixed horizontal plates 423 cooperate with the rubber pads 424 to press the LED screen to prevent it from shifting during the experiment.

[0054] Furthermore, when the moving rod 22 drives the rectangular plate 24 and the soft brush 242 to move backward, the lower end of the soft brush 242 is in close contact with the upper end of the LED screen, and then the soft brush 242 will wipe the upper end of the LED screen to prevent oil or dust particles from affecting the LED screen test.

[0055] See also Figure 6 and Figure 7 The detection mechanism 3 includes a fixed plate 33 fixedly connected to the right side of the upper end of the operating table 1, a baffle 37 is fixedly connected to the upper right side of the fixed plate 33, a fixed roller 36 is fixedly connected to the rear part of the upper right side of the fixed plate 33, a round roller 34 is rotatably connected to the lower right side of the fixed plate 33, a fixed rod 31 is provided on the upper left side of the fixed plate 33, a detection pen 32 is fixedly connected to the left end of the fixed rod 31, a round rod 35 is rotatably connected to the right end of the fixed rod 31, and the fixed roller 36 is transmission-connected to the round roller 34.

[0056] The above-mentioned detection pen 32 is a scratch test pen with different hardness at both ends in the prior art, and its working principle is a conventional design in the prior art, which will not be elaborated in detail in this solution.

[0057] Specifically, after the LED screen is fixed by the U-shaped plate 42, the rectangular seat 43 and the pressure sensor 44, the hydraulic cylinder 14 is activated, so that its output end drives the fixed rod 31 to move, so that the lower end of the detection pen 32 passes along the upper end of the LED screen and leaves a scratch, and then the output end of the hydraulic cylinder 14 continues to drive the fixed rod 31 to move, and the fixed rod 31 drives the round rod 35 to move in the same direction during the movement. After a hardness test, the fixed rod 31 and the round rod 35 move to the rear side of the fixed plate 33, and then the round rod 35 cooperates with the fixed roller 36. When the fixed rod 31 and the round rod 35 move forward, the fixed roller 36 rotates, and then the round roller 34 rotates through the transmission connection;

[0058] When the round roller 34 is driven to rotate by the fixed roller 36, the round roller 34 will rotate the bidirectional screw rod 45, so that the base 41, the U-shaped plate 42, the rectangular seat 43 and the clamped LED screen will move to the left at the same time by a certain distance.

[0059] See also Figure 7 The middle part of the outer surface of the fixed rod 31 is rotatably connected to the output end of the hydraulic cylinder 14, the right side of the outer surface of the fixed rod 31 is fixedly connected to a gear 2 311, a limiting hole 331 is provided on the upper side of the left end of the fixed plate 33, the right side of the outer surface of the fixed rod 31 is tightly attached to the inner surface of the limiting hole 331, a rack 1 332 is fixedly connected to the upper side of the left end of the fixed plate 33, the rear side of the rack 1 332 can mesh with the outer surface of the gear 2 311, a limiting groove 1 371 is provided on the left end of the baffle 1 37, the right side of the outer surface of the round rod 35 is tightly attached to the inner surface of the limiting groove 1 371, the middle part of the outer surface of the round rod 35 is fixedly connected to a rack 2 351, and the middle part of the outer surface of the fixed roller 36 is fixedly connected to a gear 3 361.

[0060] When the fixing rod 31 is driven to move by the output end of the hydraulic cylinder 14, the position of the fixing rod 31 is limited by the limiting hole 331, so that the fixing rod 31 can only slide along the inner surface of the limiting hole 331 during the movement, and at the same time, the round rod 35 is driven by the fixing rod 31 to slide along the inner surface of the limiting groove 1 371;

[0061] When the fixed rod 31 drives the detection pen 32 and the round rod 35 to slide to the rear side along the lower inner surface of the limiting hole 331, the output end of the hydraulic cylinder 14 then drives the fixed rod 31 to continue to move, and the fixed rod 31 is rotated 180 degrees through the cooperation of the gear 2 311 and the rack 1 332, so that the detection pen 32 is rotated 180 degrees, and then the other hard end is downward, and when the fixed rod 31 and the round rod 35 are driven to the rear side of the upper inner surface of the limiting hole 331, at this time, the rack 2 351 cooperates with the gear 3 361, and when the round rod 35 and the fixed rod 31 move forward along the inner surface of the limiting hole 331, the rack 2 351 drives the gear 3 361 to rotate by meshing with the gear 3 361, so that the fixed roller 36 is driven to rotate, and then the fixed roller 36 rotates to drive the round roller 34 to rotate, so that the round roller 34 drives the bidirectional screw rod 2 45 to rotate, so that the base 41, the U-shaped plate 42 and the rectangular seat 43 and the LED screen move a distance to the left along the outer surface of the guide rail 11;

[0062] Furthermore, when rack two 351 and gear three 361 are no longer engaged, the base 41, U-shaped plate 42, etc. no longer move, and the output end of the hydraulic cylinder 14 drives the fixing rod 31 and the detection pen 32 to continue to pass from the upper end of the LED screen, and then repeats the above operation to make the base 41, U-shaped plate 42 and rectangular seat 43 and the LED screen continue to move to the left. At this time, rack three 412 is driven by the base 41 to move to the left until it engages with the bottom of gear one 241.

[0063] After the two tests with different hardness are completed, the bidirectional screw rod 21 is driven to rotate through the output end of the motor 13 to drive the moving rod 22 to slide forward, so that the push rod 23 cooperates with the baffle 2 51 and the airbag 1 53 and the airbag 2 57, so that the U-shaped plate 42 is pushed upward, so that the four rubber pads 424 no longer clamp the LED screen, and the moving rod 22 drives the rectangular plate 24 to move forward while sliding forward. At the same time, the gear 1 241 cooperates with the rack 3 412 to rotate the rectangular plate 24 as a whole 90 degrees. At this time, the rubber protrusion 243 is located below the rectangular plate 24. When the rubber pad 424 no longer clamps the LED screen, the moving rod 22 drives the rectangular plate 24 and the rubber protrusion 243 to move forward. At this time, the lower end of the rubber protrusion 243 is in close contact with the LED screen. When the rubber protrusion 243 is driven to move forward, the rubber protrusion 243 also pushes the LED screen forward for unloading.

[0064] Therefore, in this solution, the positions of the rubber protrusion 243 and the soft brush 242 can be converted by cooperating with the gear 1 241 and the rack 3 412, so that the LED screen can be cleaned before the experiment starts, reducing the interference of external factors on the test results and improving the accuracy and reliability of the test. The LED screen can also be pushed out for unloading after the experiment without the need for cumbersome disassembly or moving steps, thereby improving the efficiency of the end of the experiment. The detection pen 32 can be converted by cooperating with the rack 1 332 and the gear 2 311, so that tests of different hardness can be carried out quickly and the test time can be saved. At the same time, the round roller 34 can be rotated by cooperating with the rack 2 351 and the gear 3 361, so that the position of the LED screen can be adjusted after a test so that the two scratches are not in the same position, which is convenient for comparing the performance of the LED screen after scratches of different hardness.

[0065] It should be noted that the specific installation method of the motor 13 and the hydraulic cylinder 14 used in the present invention, the circuit connection method and the control method are all conventional designs, and the present invention will not elaborate on them in detail.

[0066] 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 device for detecting the anti-scratch performance of an LED screen, comprising an operating table (1), characterized in that: A moving mechanism (2) is fixedly connected to the middle of the upper end of the operating platform (1), a detection mechanism (3) is fixedly connected to the right side of the upper end of the operating platform (1), a fixing mechanism (4) is slidably connected to the middle of the upper end of the operating platform (1), and a pushing mechanism (5) is fixedly connected to the left side of the upper end of the operating platform (1).

2. The device for detecting the anti-scratch performance of an LED screen according to claim 1, characterized in that: A guide rail (11) is fixedly connected to the middle of the upper end of the operating platform (1), a motor (13) is fixedly connected to the middle of the upper end of the operating platform (1), a guide groove (15) is fixedly connected to the middle of the upper end of the operating platform (1) located above the motor (13), and a hydraulic cylinder (14) is rotatably connected to the right side of the upper end of the operating platform (1).

3. The device for detecting the anti-scratch performance of an LED screen according to claim 2, characterized in that: The detection mechanism (3) comprises a fixed plate (33) fixedly connected to the right side of the upper end of the operating table (1); a baffle (37) is fixedly connected to the upper right side of the fixed plate (33); a fixed roller (36) is fixedly connected to the rear part of the upper right side of the fixed plate (33); a round roller (34) is rotatably connected to the lower right side of the fixed plate (33); a fixed rod (31) is provided on the upper left side of the fixed plate (33); a detection pen (32) is fixedly connected to the left end of the fixed rod (31); a round rod (35) is rotatably connected to the right end of the fixed rod (31); and the fixed roller (36) is transmission-connected to the round roller (34).

4. The device for detecting the anti-scratch performance of an LED screen according to claim 3, characterized in that: The middle part of the outer surface of the fixed rod (31) is rotatably connected to the output end of the hydraulic cylinder (14); the right side of the outer surface of the fixed rod (31) is fixedly connected to the second gear (311); the upper side of the left end of the fixed plate (33) is provided with a limiting hole (331); the right side of the outer surface of the fixed rod (31) is tightly attached to the inner surface of the limiting hole (331); the upper side of the left end of the fixed plate (33) is fixedly connected to the first rack (332); the rear side of the first rack (332) can mesh with the outer surface of the second gear (311); the left end of the baffle plate (37) is provided with a limiting groove (371); the right side of the outer surface of the round rod (35) is tightly attached to the inner surface of the limiting groove (371); the middle part of the outer surface of the round rod (35) is fixedly connected to the second gear (351); the middle part of the outer surface of the fixed roller (36) is fixedly connected to the third gear (361).

5. The LED screen anti-scratch performance detection device according to claim 3, characterized in that: The fixing mechanism (4) comprises a bidirectional screw rod (45) fixedly connected to the left end of the round roller (34); the outer surface of the bidirectional screw rod (45) is slidably connected to a base (41); the upper end of the base (41) is symmetrically slidably connected to a U-shaped plate (42); a rectangular seat (43) is fixedly connected to the middle of the upper end of the base (41) located on the inner surfaces of the two U-shaped plates (42); and a pressure sensor (44) is fixedly connected to the middle of the upper end of the rectangular seat (43).

6. The device for detecting the anti-scratch performance of an LED screen according to claim 5, characterized in that: The front and rear sides of the base (41) are both provided with rectangular grooves (411); a rack three (412) is fixedly connected to the left side of the rear side of the base (41); the inner surface of the rectangular groove (411) is slidably connected to the matching guide rail (11); two U-shaped plates (42) are symmetrically fixedly connected to one end away from each other with a rectangular slider (421); the upper ends of the two U-shaped plates (42) are symmetrically fixedly connected to springs (422); the upper ends of the four springs (422) are fixedly connected to a fixed transverse plate (423); the lower ends of the four fixed transverse plates (423) are fixedly connected to a rubber pad (424) on one side close to each other; the lower ends of the four rubber pads (424) are tightly attached to the upper end of the rectangular seat (43).

7. The device for detecting the anti-scratch performance of an LED screen according to claim 6, characterized in that: The moving mechanism (2) comprises a bidirectional screw rod (21) fixedly connected to the output end of the motor (13); a moving rod (22) is slidably connected to the rear side of the outer surface of the bidirectional screw rod (21); the upper part of the outer surface of the moving rod (22) is in close contact with the inner surface of the guide groove (15); a push rod (23) is fixedly connected to the left side of the lower part of the outer surface of the moving rod (22); and a rectangular plate (24) is rotatably connected to the right side of the lower part of the outer surface of the moving rod (22).

8. The device for detecting the anti-scratch performance of an LED screen according to claim 7, characterized in that: A soft brush (242) is fixedly connected to the lower end of the rectangular plate (24), a rubber bump (243) is fixedly connected to the front end of the rectangular plate (24), a gear one (241) is fixedly connected to the left side of the outer surface of the rectangular plate (24), and the outer surface of the gear one (241) can mesh with the upper end of the rack three (412).

9. The device for detecting the anti-scratch performance of an LED screen according to claim 7, characterized in that: The pushing mechanism (5) comprises a baffle plate 2 (51) fixedly connected to the front end of the push rod (23), a telescopic plate (52) fixedly connected to the upper end of the baffle plate 2 (51), an air bag 1 (53) fixedly connected to the front end of the baffle plate 2 (51), an air pipe (54) fixedly connected to the right side of the outer surface of the air bag 1 (53), eight air bags 2 (57) fixedly connected to the output end of the air pipe (54), a telescopic tube (56) fixedly connected to the outer surfaces of two air bags 2 (57) on the same side, and a rectangular horizontal plate (55) fixedly connected to the upper ends of the two telescopic tubes (56) on the same side.

10. The LED screen anti-scratch performance detection device according to claim 9, characterized in that: The two rectangular horizontal plates (55) are provided with a second limiting groove (551) on one side close to each other, and the outer surfaces of the two rectangular sliding blocks (421) on the same side are slidably connected to the inner surface of the second limiting groove (551).

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