Scratch resistance testing device for mobile phone display screen

Abstract

The utility model belongs to the technical field of anti-scraping testing, and particularly relates to a mobile phone display screen anti-scraping testing device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a support, the side face of the support is provided with a support, the top of the support is fixedly connected with a fixing rod, and the top of the support is provided with a testing device. The testing device comprises a servo motor, the side face of the servo motor is fixedly connected to the side face of the support, an output shaft of the servo motor is fixedly connected with a rotating shaft, and the circumferential face of the rotating shaft is fixedly connected with a first bevel gear. The problem that the wiping head cannot be replaced is solved, the lead screw rotates in the support, the connecting rod can be driven to reciprocate along the lead screw when the lead screw rotates, the telescopic rod can be driven to move through the supporting rod when the connecting rod moves, and then the wiping head can be driven to move when the telescopic rod moves. And when the wiping head moves, the display screen on the bottom plate can be scraped.

Description

Technical Field

[0001] This utility model belongs to the field of scratch resistance testing technology, specifically relating to a scratch resistance testing device for mobile phone displays. Background Technology

[0002] Scratch resistance testing technology is a key means of evaluating the durability of a display screen. This technology tests the screen's ability to resist scratch damage by simulating scratch scenarios that may be encountered in actual use. The test usually uses professional equipment, such as a scratch tester equipped with scratch testers with scratch heads of different hardness and shapes. During the test, the scratch head repeatedly scratches the screen surface with specific pressure, speed and angle, simulating the scratching action of objects such as keys and fingernails. After the test, the screen surface is observed for scratches and damage with the help of tools such as microscopes and colorimeters, and the degree of damage is assessed, such as scratch depth, width and number. The scratch resistance performance level of the display screen is determined according to relevant standards, providing a basis for product design and quality control. This technology helps ensure that the display screen maintains a good appearance and function in various environments, improves user experience and enhances the product's competitiveness in the market.

[0003] Chinese patent CN208383759U discloses an optical thin film scratch resistance testing device, including a liquid crystal display device and a tactile ring. The liquid crystal display device has a display screen at its front end, which is embedded in the device. A power switch is located on the upper left side of the lower end of the liquid crystal display device and is electrically connected to it. This optical thin film scratch resistance testing device, through optical science and technology, enhances the device's automation performance, which is conducive to its stable market share. The power indicator light promptly reflects whether the device is operating normally. The analyzer improves work efficiency and possesses advanced technology. The heat dissipation vents effectively dissipate the heat generated internally during operation, preventing damage to the device due to overheating, thus enhancing its usability and promising a broad market prospect.

[0004] However, the current scratch resistance test has the following problems: the above application uses a liquid crystal display device and a touch ring assembly, and it is impossible to replace the wiping head of the scratch test device. Therefore, we need a mobile phone display scratch resistance test device. Utility Model Content

[0005] The purpose of this invention is to provide a mobile phone display screen scratch resistance testing device to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mobile phone display screen scratch resistance testing device, comprising a base plate, a support fixedly connected to the top of the base plate, a bracket provided on the side of the support, a fixed rod fixedly connected to the top of the bracket, and a testing device provided on the top of the bracket; the testing device includes a servo motor, the side of the servo motor fixedly connected to the side of the bracket, a rotating shaft fixedly connected to the output shaft of the servo motor, a bevel gear one fixedly connected to the circumferential surface of the rotating shaft, a lead screw rotatably connected to the inner wall of the bracket, a bevel gear two fixedly connected to the side of the lead screw, a connecting rod threadedly connected to the circumferential surface of the lead screw, a support rod provided on the side of the connecting rod, a pin slidingly penetrating the inner wall of the connecting rod, the circumferential surface of the pin slidingly penetrating the inner wall of the support rod, a telescopic rod fixedly connected to the bottom of the support rod, a pressure plate fixedly connected to the circumferential surface of the telescopic rod, and a wiping head fixedly connected to the telescopic end of the telescopic rod.

[0007] Preferably, a spring is fixedly connected to the bottom of the pressure plate, and the end of the spring away from the pressure plate is fixedly connected to the top of the wiping head. The function of the spring is to allow the wiping head to be reset through the pressure plate and the telescopic rod.

[0008] Preferably, a pulley is fixedly connected to the circumferential surface of the lead screw, a belt is driven to the circumferential surface of the pulley, and a second pulley is driven to the inner wall of the belt. The inner wall of the second pulley is fixedly connected to the circumferential surface of the lead screw. The function of the pulley and the second pulley is to cooperate with the belt for transmission.

[0009] Preferably, the circumferential surface of the first bevel gear meshes with the circumferential surface of the second bevel gear. The number of the lead screw, connecting rod, support rod, and pin is set to two, and they are symmetrical about each other along the vertical central axis of the bracket. The number of the telescopic rod, pressure plate, wiping head, and elastic spring is set to two, and they are symmetrical about each other along the vertical central axis of the support rod. The purpose of the circumferential surface of the first bevel gear meshing with the circumferential surface of the second bevel gear is to drive the second bevel gear to rotate when the first bevel gear rotates. The purpose of setting the number of the lead screw, connecting rod, support rod, and pin to two is to better drive the telescopic rod to move.

[0010] Preferably, a fixing device is provided on the top of the base plate. The fixing device includes a connecting block, the bottom of which is fixedly connected to the top of the base plate. A sliding sleeve is fixedly connected to the side of the connecting block. A sliding rod is slidably connected to the inner wall of the sliding sleeve. A pressure rod is fixedly connected to the side of the sliding rod. A limit block is fixedly connected to the top of the base plate. A return spring is fixedly connected to the inner wall of the sliding sleeve. The end of the return spring away from the sliding sleeve is fixedly connected to the side of the sliding rod. The function of the return spring is to drive the sliding rod to return to its original position.

[0011] Preferably, the support has a socket on its side, and a pin is slidably connected to the inner wall of the socket. The circumferential surface of the pin slides through the side of the support. The socket and the pin are used to fix the support.

[0012] Preferably, the number of the insertion holes is set to several and they are symmetrical about each other along the vertical central axis of the support. The number of supports is set to several and they are distributed along the four corners of the base plate. The purpose of setting the number of insertion holes to several and they being symmetrical about each other along the vertical central axis of the support is to fix the bracket at different heights of the support.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this mobile phone display screen scratch resistance testing device,

[0014] (1) By setting up the testing device, the rotating shaft will drive the first bevel gear to rotate when it rotates. When the first bevel gear rotates, it can drive the second bevel gear to rotate. When the second bevel gear rotates, the lead screw can rotate in the bracket. When the lead screw rotates, it can drive the connecting rod to move back and forth along the lead screw. When the connecting rod moves, it can drive the telescopic rod to move through the support rod. When the telescopic rod moves, it can drive the wiping head to move, so that when the wiping head moves, it can scratch the display screen on the base plate.

[0015] (2) By setting up a fixing device, the present invention allows one end of the display screen to rest on the limiting block, and the other end to be fixed by pulling the pressure rod and pressing the pressure rod on the other end of the display screen through the return spring, thereby preventing the display screen from moving during testing. When it is necessary to adjust the height of the bracket, the pin on the bracket can be pulled out and the height of the bracket can be adjusted on the support. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the entire utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional overall structure of the testing device of this utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional overall structure of the fixing device of this utility model;

[0019] Figure 4 This is a utility model Figure 2 A schematic diagram of the three-dimensional magnified structure at point A in the middle;

[0020] Figure 5 This is a utility model Figure 3 A schematic diagram of the three-dimensional magnified structure at point B.

[0021] In the diagram: 1. Base plate; 2. Support; 3. Bracket; 4. Fixing rod; 5. Testing device; 51. Servo motor; 52. Rotating shaft; 53. Bevel gear one; 54. Lead screw; 55. Bevel gear two; 56. Connecting rod; 57. Support rod; 58. Pin; 59. Telescopic rod; 510. Pressure plate; 511. Wiping head; 512. Elastic spring; 513. Belt pulley one; 514. Belt; 515. Belt pulley two; 6. Fixing device; 61. Connecting block; 62. Sliding sleeve; 63. Sliding rod; 64. Pressure rod; 65. Limiting block; 66. Return spring; 67. Insertion hole; 68. Pin. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model embodiment provides a mobile phone display screen scratch resistance testing device, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the device includes a base plate 1, a support 2 fixedly connected to the top of the base plate 1, a bracket 3 provided on the side of the support 2, a fixed rod 4 fixedly connected to the top of the bracket 3, and a testing device 5 provided on the top of the bracket 3. The testing device 5 includes a servo motor 51, the side of the servo motor 51 fixedly connected to the side of the bracket 3, a rotating shaft 52 fixedly connected to the output shaft of the servo motor 51, a bevel gear 53 fixedly connected to the circumferential surface of the rotating shaft 52, a lead screw 54 rotatably connected to the inner wall of the bracket 3, a bevel gear 55 fixedly connected to the side of the lead screw 54, a connecting rod 56 threadedly connected to the circumferential surface of the lead screw 54, a support rod 57 provided on the side of the connecting rod 56, a pin 58 slidingly passing through the inner wall of the connecting rod 56, the circumferential surface of the pin 58 slidingly passing through the inner wall of the support rod 57, a telescopic rod 59 fixedly connected to the bottom of the support rod 57, a pressure plate 510 fixedly connected to the circumferential surface of the telescopic rod 59, and a wiping head 511 fixedly connected to the telescopic end of the telescopic rod 59.

[0024] Further such as Figure 2 and Figure 4 As shown, a spring spring 512 is fixedly connected to the bottom of the pressure plate 510. The end of the spring spring 512 away from the pressure plate 510 is fixedly connected to the top of the wiping head 511. The function of the spring spring 512 is to allow the wiping head 511 to be reset through the pressure plate 510 and the telescopic rod 59.

[0025] Further such as Figure 2 and Figure 4 As shown, a pulley 513 is fixedly connected to the circumferential surface of the lead screw 54, a belt 514 is driven to the circumferential surface of the pulley 513, and a pulley 515 is driven to the inner wall of the belt 514. The inner wall of the pulley 515 is fixedly connected to the circumferential surface of the lead screw 54. The function of the pulley 513 and the pulley 515 is to cooperate with the belt 514 for transmission.

[0026] Further such as Figure 2 and Figure 4 As shown, the circumferential surface of bevel gear 53 meshes with the circumferential surface of bevel gear 55. The number of lead screw 54, connecting rod 56, support rod 57 and pin 58 are each set to two, and they are symmetrical to each other along the vertical central axis of the bracket 3. The number of telescopic rod 59, pressure plate 510, wiping head 511 and elastic spring 512 are each set to two, and they are symmetrical to each other along the vertical central axis of the support rod 57. The function of the circumferential surface of bevel gear 53 meshing with the circumferential surface of bevel gear 55 is to drive bevel gear 55 to rotate when bevel gear 53 rotates. The function of setting the number of lead screw 54, connecting rod 56, support rod 57 and pin 58 to two is to better drive the telescopic rod 59 to move.

[0027] According to the above structure, when a scratch resistance test is required on the display screen, the display screen to be tested is placed on the base plate 1, and then the servo motor 51 is started. When the output shaft of the servo motor 51 rotates, it drives the rotating shaft 52 to rotate. When the rotating shaft 52 rotates, it drives the first bevel gear 53 to rotate. When the first bevel gear 53 rotates, it drives the second bevel gear 55 to rotate. When the second bevel gear 55 rotates, it drives the lead screw 54 to rotate in the bracket 3. Thus, when the lead screw 54 rotates, it drives the connecting rod 56 to move back and forth along the lead screw 54. When the connecting rod 56 moves, it drives the telescopic rod 59 to move through the support rod 57. In turn, when the telescopic rod 59 moves, it drives the wiping head 511 to move, so that the wiping head 511 can scratch the display screen on the base plate 1. When it is necessary to replace the wiping head 511 to scratch the display screen, the pin 58 can be pulled out of the support rod 57, so that the support rod 57 can be rotated 180 degrees to replace the wiping head 511.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a fixing device 6 is provided on the top of the base plate 1. The fixing device 6 includes a connecting block 61. The bottom of the connecting block 61 is fixedly connected to the top of the base plate 1. A sliding sleeve 62 is fixedly connected to the side of the connecting block 61. A sliding rod 63 is slidably connected to the inner wall of the sliding sleeve 62. A pressure rod 64 is fixedly connected to the side of the sliding rod 63. A limit block 65 is fixedly connected to the top of the base plate 1. A return spring 66 is fixedly connected to the inner wall of the sliding sleeve 62. The end of the return spring 66 away from the sliding sleeve 62 is fixedly connected to the side of the sliding rod 63. The function of the return spring 66 is to drive the sliding rod 63 to return to its original position.

[0029] Further such as Figure 3 and Figure 5 As shown, the side of the support 2 is provided with a socket 67, and a pin 68 is slidably connected to the inner wall of the socket 67. The circumferential surface of the pin 68 slides through the side of the bracket 3. The purpose of the socket 67 and the pin 68 is to fix the bracket 3.

[0030] Further such as Figure 3 As shown, the number of insertion holes 67 is set to several and they are symmetrical about each other along the vertical central axis of the support 2. The number of supports 2 is set to several and they are distributed along the four corners of the base plate 1. The purpose of setting the number of insertion holes 67 to several and they are symmetrical about each other along the vertical central axis of the support 2 is to fix the bracket 3 at different heights of the support 2.

[0031] According to the above structure, when testing the display screen, one end of the display screen is placed against the limiting block 65, and the other end is fixed by pulling the pressure rod 64. The pressure rod 64 is pressed against the other end of the display screen by the return spring 66, thus preventing the display screen from moving during testing. When it is necessary to adjust the height of the bracket 3, the pin 68 on the bracket 3 can be pulled out, and the height of the bracket 3 can be adjusted on the support 2. After the bracket 3 is adjusted, the pin 68 can be inserted into the socket 67 on the support 2 to fix the bracket 3. Different heights of the bracket 3 can be adjusted by using the socket 67 at different positions on the support 2.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mobile phone display screen scratch resistance testing device, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to a support (2), a bracket (3) is provided on the side of the support (2), a fixing rod (4) is fixedly connected to the top of the bracket (3), and a testing device (5) is provided on the top of the bracket (3). The testing device (5) includes a servo motor (51), the side of which is fixedly connected to the side of the bracket (3). The output shaft of the servo motor (51) is fixedly connected to a rotating shaft (52). A bevel gear (53) is fixedly connected to the circumferential surface of the rotating shaft (52). A lead screw (54) is rotatably connected to the inner wall of the bracket (3). A bevel gear (55) is fixedly connected to the side of the lead screw (54). The circumferential surface of the lead screw (54) is threaded. A connecting rod (56) is connected, and a support rod (57) is provided on the side of the connecting rod (56). A pin (58) slides through the inner wall of the connecting rod (56), and the circumferential surface of the pin (58) slides through the inner wall of the support rod (57). A telescopic rod (59) is fixedly connected to the bottom of the support rod (57), and a pressure plate (510) is fixedly connected to the circumferential surface of the telescopic rod (59). A wiping head (511) is fixedly connected to the telescopic end of the telescopic rod (59).

2. The mobile phone display screen scratch resistance testing device according to claim 1, characterized in that: A spring (512) is fixedly connected to the bottom of the pressure plate (510), and the end of the spring (512) away from the pressure plate (510) is fixedly connected to the top of the wiping head (511).

3. The mobile phone display screen scratch resistance testing device according to claim 1, characterized in that: A pulley (513) is fixedly connected to the circumferential surface of the lead screw (54). A belt (514) is driven to the circumferential surface of the pulley (513). A pulley (515) is driven to the inner wall of the belt (514). The inner wall of the pulley (515) is fixedly connected to the circumferential surface of the lead screw (54).

4. The mobile phone display screen scratch resistance testing device according to claim 1, characterized in that: The circumferential surface of the first bevel gear (53) meshes with the circumferential surface of the second bevel gear (55). The number of the lead screw (54), connecting rod (56), support rod (57) and pin (58) are each set to two, and they are symmetrical to each other along the vertical central axis of the bracket (3). The number of the telescopic rod (59), pressure plate (510), wiping head (511) and elastic spring (512) are each set to two, and they are symmetrical to each other along the vertical central axis of the support rod (57).

5. The mobile phone display screen scratch resistance testing device according to claim 1, characterized in that: A fixing device (6) is provided on the top of the base plate (1). The fixing device (6) includes a connecting block (61). The bottom of the connecting block (61) is fixedly connected to the top of the base plate (1). A sliding sleeve (62) is fixedly connected to the side of the connecting block (61). A sliding rod (63) is slidably connected to the inner wall of the sliding sleeve (62). A pressure rod (64) is fixedly connected to the side of the sliding rod (63). A limit block (65) is fixedly connected to the top of the base plate (1). A return spring (66) is fixedly connected to the inner wall of the sliding sleeve (62). The end of the return spring (66) away from the sliding sleeve (62) is fixedly connected to the side of the sliding rod (63).

6. The mobile phone display screen scratch resistance testing device according to claim 1, characterized in that: The support (2) has a socket (67) on its side, and a pin (68) is slidably connected to the inner wall of the socket (67). The circumferential surface of the pin (68) slides through the side of the bracket (3).

7. The mobile phone display screen scratch resistance testing device according to claim 6, characterized in that: The number of the insertion holes (67) is set to several, and they are symmetrical to each other along the vertical central axis of the support (2). The number of the supports (2) is set to several, and they are distributed along the four corners of the base plate (1).

Images