Abrasion resistance testing device for mobile phone cover

Abstract

The invention discloses a wear resistance testing device for a mobile phone cover, and relates to the field of testing equipment, the wear resistance testing device comprises a self-rotating cylinder, and a push plate, a sliding piece and a protruding assembly which are connected in sequence from top to bottom; the push plate is clamped in the cylinder body, and a test area is formed in the cylinder body above the push plate; the sliding part and the push plate are rotatably arranged with the barrel as the axis, the protruding assembly is located on the rotating path of the sliding part, a first area and a second area are formed on the top face and the bottom face of the protruding assembly corresponding to the rotating path of the sliding part respectively, and the top face of the protruding assembly is connected with the sliding part; when the sliding piece moves from the second area to the first area, the sliding piece enables the horizontal height of the push plate to be increased, the push plate extrudes the test area, and when the sliding piece moves from the first area to the second area, the sliding piece enables the horizontal height of the push plate to be reduced, and the push plate enables the test area to be restored. According to the invention, the test area is extruded, so that the grinding material applies different pressures on the mobile phone shell to simulate different scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of testing equipment, in particular to a wear-resistant testing device for mobile phone cases. BACKGROUND

[0002] A mobile phone case is a decorative item for protecting or decorating the appearance of a mobile phone, which can reduce or avoid damage caused by bumps when the mobile phone is in use. If the wear resistance of the mobile phone case is poor, the protective performance and aesthetic appearance of the mobile phone case will decrease after a period of use. In order to ensure the production quality of the mobile phone case, manufacturers usually need to conduct sampling wear resistance detection on the completed mobile phone case.

[0003] In the prior art, the wear resistance testing of mobile phone cases is divided into abrasive belt testing method and roller vibration testing method. Currently, when the roller testing method is used to test the wear resistance of the mobile phone case, the traditional roller usually relies on fixed speed and fixed abrasive amount, the friction force is constant, the pressure of the abrasive in the roller applied to the surface of the mobile phone case is uniform, and the different wear resistance of the mobile phone case under different situations cannot be simulated, especially the wear effect of the high-frequency contact parts such as camera and button area, i.e. the vulnerable parts, which leads to poor representativeness of the test results, and further makes the material of the vulnerable parts of the mobile phone unreasonable.

[0004] Therefore, the present application provides a wear-resistant testing device for mobile phone cases to solve the problem of uneven pressure of abrasive applied to the surface of the mobile phone case during roller testing. SUMMARY

[0005] The present application aims to provide a wear-resistant testing device for mobile phone cases to solve the problem of uneven pressure of abrasive applied to the surface of the mobile phone case.

[0006] To achieve this purpose, the present application adopts the following technical solutions: A wear-resistant testing device for mobile phone cases, comprising a self-rotating cylinder and a push plate, a sliding member and a protruding assembly connected in sequence from top to bottom. The push plate is connected in the cylinder, and a test area is formed above the push plate in the cylinder. The sliding member and the push plate are rotatably arranged with the cylinder as the axis, and the protruding assembly is located on the rotation path of the sliding member. The top surface and the bottom surface of the protruding assembly correspond to the rotation path of the sliding member to form a first area and a second area, respectively, and the top surface of the protruding assembly is connected with the sliding member. When the sliding member is displaced from the second area to the first area, the sliding member raises the horizontal height of the push plate, and the push plate extrudes the test area. When the sliding member is displaced from the first area to the second area, the sliding member lowers the horizontal height of the push plate, and the push plate restores the test area.

[0007] Preferably, the protruding component includes a top plate hinged between two inclined guide units, the first zone is located on the top surface of the top plate, the inclination angle a between the guide unit and the top plate is adjustable, and the horizontal height of the top surface of the top plate and the distance between the first zone and the second zone change with the inclination angle a.

[0008] Preferably, the guide unit comprises a side plate and a connecting plate hinged to each other, the side of the side plate away from the connecting plate is hinged to the top plate, and the connecting plate moves along the setting direction of the side plate, so that the inclination angle a of the side plate is adjustable; A mounting frame is provided below the connecting plate, and the connecting plate slides on the mounting frame, and the second area is located on the contact surface between the mounting plate and the connecting plate.

[0009] Preferably, a sliding hole is provided on the mounting frame along the moving direction of the connecting plate, a connecting piece passing through the sliding hole is provided on the connecting plate, and the connecting plate is connected to the mounting frame via the connecting piece.

[0010] Preferably, the sliding member is detachably connected to the push plate, the number of the sliding member is at least one, and the number of the sliding member is positively correlated with the lifting frequency of the push plate.

[0011] Preferably, the sliding member includes a threaded column and a pulley connected in sequence, the pulley is connected to the push plate through the threaded column, and the push plate is provided with a plurality of thread grooves distributed at equal intervals along the circumference corresponding to the position of the threaded column, and the distance between the pulley and the push plate is greater than the distance between the first zone and the second zone.

[0012] Preferably, a spiral protrusion is formed on the inner wall of the cylinder along its circumference, and a groove is provided on the outer periphery of the push plate corresponding to the protrusion, and the protrusion is connected to the groove; the outer periphery of the protrusion is an arc surface, and the size of the protrusion is adapted to the groove.

[0013] Preferably, a retractable telescopic block is provided on the push plate, and the telescopic block is retracted toward the test area as the push plate rises and falls. The telescopic block extends to squeeze the local test area, and retracts to restore the local squeezed area.

[0014] Preferably, a through opening is provided on the push plate corresponding to the telescopic block, the telescopic block is located in the through opening, a connecting portion is vertically formed at the outer periphery of the telescopic block and at a position located in the through opening, a spiral groove is provided on the inner wall of the through opening along its axial direction, the connecting portion extends into the spiral groove at one end away from the telescopic block and is connected to the spiral groove, a square column is provided under the telescopic block, the telescopic block is inserted into the square column, when the push plate rotates and approaches the test area, the connecting portion drives the telescopic block to approach the test area through the spiral groove; when the push plate rotates and moves away from the test area, the connecting portion drives the telescopic block away from the test area through the spiral groove.

[0015] Preferably, a workbench is arranged below the barrel, a driving assembly is arranged on the workbench through a mounting frame, the barrel is arranged in the driving assembly, and the driving assembly is used to drive the barrel to rotate.

[0016] Compared with the prior art, the application has the following beneficial effects: The wear-resistant test device of the mobile phone cover drives the push plate to rotate through the self-rotating barrel, moves the sliding member on the first area and the second area, and under the action of the first area and the second area with different heights, the sliding member extrudes the test area in the barrel through the push plate, so that the space of the test area is expanded and contracted, and then the abrasive in the barrel can change the pressure acting on the mobile phone shell, so as to simulate the different wear-resistant performances of the mobile phone shell in different situations, improve the wear effect of the vulnerable parts of the mobile phone shell, and make the test more realistic. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can be obtained without creative labor.

[0018] The structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the limited conditions of the implementation of the application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that can be achieved by the application, should still fall within the scope of the technical content disclosed by the application.

[0019] Figure 1 It is a schematic diagram of the overall structure of the application; Figure 2 It is a schematic diagram of the split structure of the barrel and the push plate in the application; Figure 3 It is a schematic diagram of the internal structure of the barrel in the application; Figure 4 It is a schematic diagram of the connection structure of the push plate and the protruding part in the application; Figure 5 It is a schematic diagram of the connection structure of the mounting frame and the connecting plate in the application; Figure 6 It is a schematic diagram of the overall structure of the sliding member in the application; Figure 7 It is a schematic diagram of the overall structure of the sliding member in the application; Figure 3 It is an enlarged schematic diagram of the A structure in the application; Figure 8It is a schematic view of the connecting structure of the push plate and the telescopic block in the application; Figure 9 It is another schematic view of the connecting structure of the push plate and the telescopic block in the application; Figure 10 It is a schematic view of the split structure of the push plate and the telescopic block in the application; Figure 11 It is a schematic view of the enlarged structure of the B structure in the application. Figure 8

[0020] Illustration: 1, cylinder; 11, test area; 12, protruding part; 121, circular arc surface; 14, first area; 15, second area; 2, push plate; 21, threaded groove; 22, groove; 23, through hole; 231, spiral groove; 3, sliding part; 31, threaded column; 32, pulley; 5, protruding assembly; 51, top plate; 52, guide unit; 521, side plate; 522, connecting plate; 53, mounting frame; 531, sliding hole; 54, connecting piece; 6, telescopic block; 61, connecting part; 62, plug-in slot; 7, square column; 8, workbench; 9, driving assembly. DETAILED DESCRIPTION

[0021] In order to make the application purpose, features and advantages of the application more obvious and easy to understand, the technical solutions in the embodiments of the application will be described clearly and completely below in combination with the drawings in the embodiments of the application. Obviously, the embodiments described below are only some of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the application.

[0022] In the description of the application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be a component disposed therebetween.

[0023] Example 1: Please refer to Figures 1-5 The wear-resistant testing device of the mobile phone case in the embodiment comprises a self-rotating cylinder 1 and a push plate 2, a sliding part 3 and a protruding assembly 5 connected in sequence from top to bottom; The push plate 2 is clamped in the cylinder 1, and a test area 11 is formed above the push plate 2 in the cylinder 1; ​The sliding member 3 is rotatably arranged with the push plate 2 as the axis of the barrel 1, and the protruding assembly 5 is located on the rotation path of the sliding member 3, and the top surface and the bottom surface of the protruding assembly 5 correspondingly form the first area 14 and the second area 15 respectively according to the rotation path of the sliding member 3, and the top surface of the protruding assembly 5 is connected with the sliding member 3; When the sliding member 3 is displaced from the second area 15 to the first area 14, the sliding member 3 raises the horizontal height of the push plate 2, and the push plate 2 extrudes the test area 11, and when the sliding member 3 is displaced from the first area 14 to the second area 15, the sliding member 3 lowers the horizontal height of the push plate 2, and the push plate 2 restores the test area 11.

[0024] It should be noted that the barrel 1 is used to store abrasive and mobile phone shell, and the abrasive and mobile phone shell are located in the test area 11, and after the barrel 1 rotates, the abrasive can make the mobile phone shell wear, so as to test the wear resistance of the mobile phone shell.

[0025] When the barrel 1 rotates to make the abrasive wear the mobile phone shell, the barrel 1 also drives the clamped push plate 2 and sliding member 3 to rotate synchronously, and when the sliding member 3 rotates, it moves on the first area 14 and the second area 15 on its rotation path, because the height of the first area 14 and the second area 15 is different, when the sliding member 3 rotates with the barrel 1, under the action of the first area 14 and the second area 15, the push plate 2 moves back and forth in the barrel 1 to extrude the test area 11, so as to cyclically compress the space of the test area 11, so that the abrasive can be under different pressure, so as to simulate the different wear resistance of the mobile phone shell under different conditions.

[0026] It should be noted that by compressing the space of the test area 11, the volume of the abrasive in the test area 11 is forced to decrease, so that the density of the abrasive increases, the collision frequency between the abrasive particles increases, the normal force on the mobile phone shell increases, and the pressure of the abrasive on the mobile phone shell increases. When the space of the test area 11 is not compressed, the pressure of the abrasive on the mobile phone shell is less than when the space of the test area 11 is compressed, and when the space of the test area 11 is cyclically compressed by the push plate 2, the abrasive can act on the mobile phone shell with different pressures.

[0027] It can be known that by lifting the push plate 2, the space of the test area 11 is periodically changed, the pressure of the abrasive on the mobile phone shell is non-uniformly distributed, the difference in wear of different parts in actual use is simulated, the pressure fluctuation is closer to the actual use scene, the deviation caused by the constant pressure in the traditional roller test is avoided, the wear effect on the vulnerable parts is especially strengthened, and the pressure change is realized only by mechanical linkage without complex control system.

[0028] It needs to be emphasized that the test area 11 is extruded by the push plate 2, so that the pressure of the abrasive in the barrel 1 on the mobile phone shell changes from constant to pulse fluctuation, simulating the instantaneous impact of the mobile phone in daily use such as falling, rubbing, extrusion, and the extrusion of the push plate 2 causes the turbulence of the abrasive to increase, and the pressure difference of different areas also expands, so as to restore the high pressure concentration phenomenon of the vulnerable parts of the mobile phone shell.

[0029] Further, a workbench 8 is arranged below the barrel 1, and a driving assembly 9 is arranged on the workbench 8 through a mounting frame 53, and the barrel 1 is arranged in the driving assembly 9, and the driving assembly 9 is used to drive the barrel 1 to rotate.

[0030] Specifically, the barrel 1 is provided with a cover body, and by separating the cover body from the barrel 1, the barrel 1 can be fed and discharged; it is worth noting that the driving assembly 9 is known to those skilled in the art, and the present embodiment will not be described.

[0031] Further, the inner wall of the barrel 1 is formed with a spiral protrusion 12 along the circumference thereof, and a groove 22 is formed on the outer circumference of the push plate 2 corresponding to the protrusion 12, and the protrusion 12 is connected with the groove 22; the outer circumference of the protrusion 12 is a circular arc surface 121, and the size of the protrusion 12 and the groove 22 is matched.

[0032] It needs to be noted that the connection of the protrusion 12 and the groove 22 enables the barrel 1 and the push plate 2 to be clamped, and when the sliding member 3 extrudes the test area 11 by the push plate 2, the push plate 2 is not only driven to rotate by the barrel 1, but also rotates again under the action of the spiral protrusion 12, and when the sliding member 3 restores the test area 11 by the push plate 2, the push plate 2 reversely rotates under the action of the spiral protrusion 12.

[0033] It also needs to be noted that the secondary rotation of the push plate 2 under the action of the spiral protrusion 12 can make the abrasive in the barrel 1 produce vortex flow, so as to form pressure fluctuation superimposed tangential shear force, so as to simulate the scene of the mobile phone rubbing with hard objects such as keys in the pocket.

[0034] It can be known that the circular arc surface 121 provides continuous curvature transition, guides the smooth movement of the groove 22, so that the push plate 2 can reduce the driving energy consumption under the condition of reducing the movement resistance, so as to avoid the situation of jamming.

[0035] Embodiment 2: The basic content is the same as that of embodiment 1, and the difference is that: Please refer to Figure 5 The protruding assembly 5 in the present embodiment includes a top plate 51 hinged between two inclined guide units 52, the first area 14 is located on the top surface of the top plate 51, the inclination angle a between the guide unit 52 and the top plate 51 is adjustable, and the horizontal height of the top surface of the top plate 51 and the distance between the first area 14 and the second area 15 change with the inclination angle a.

[0036] It should be noted that by adjusting the inclination angle a between the guide unit 52 and the top plate 51, the spacing between the first area 14 and the second area 15 is adjusted, and when the spacing between the first area 14 and the second area 15 changes, the rotated sliding member 3 causes the push plate 2 to be pressed in the cylinder 1 with the spacing between the first area 14 and the second area 15, thereby adjusting the pressure of the abrasive acting on the mobile phone shell to meet the needs of mobile phone shells of different materials, improve applicability, and reduce use cost.

[0037] Specifically, the inclination angle a increases, and the spacing between the first area 14 and the second area 15 decreases. The inclination angle a decreases, and the spacing between the first area 14 and the second area 15 increases.

[0038] It should also be noted that when the cylinder 1 drives the sliding member 3 to move along the first area 14 and the second area 15, i.e. the alternating displacement of the high point and the low point of the protruding assembly 5, the push plate 2 is driven to move up and down periodically in the vertical direction. This lifting movement directly compresses the volume of the test area 11, forcing the abrasive to form a non-uniform pressure field in a limited space, simulating the scenario of the mobile phone shell under external heavy pressure.

[0039] Further, the guide unit 52 includes a side plate 521 and a connecting plate 522 hinged to each other, the side plate 521 is hinged to the top plate 51 away from the connecting plate 522, and the connecting plate 522 moves along the setting direction of the side plate 521, so that the inclination angle a of the side plate 521 is adjustable. The connecting plate 522 is provided below the mounting bracket 53, and the connecting plate 522 slides on the mounting bracket 53, and the second area 15 is located on the contact surface between the mounting plate and the connecting plate 522.

[0040] Specifically, the mounting bracket 53 is a U-shaped bracket, and the mounting bracket 53 is arranged on the workbench 8.

[0041] In application, the connecting plate 522 moves on the mounting bracket 53 to drive the side plate 521 to move, the angle between the two changes, and the side plate 521 also drives the top plate 51 to move after moving, the inclination angle a between the side plate 521 and the top plate 51 changes, and the horizontal height of the side plate 521 changes under the change of the inclination angle a, so that the spacing between the first area 14 and the second area 15 changes.

[0042] It should be noted that when the connecting plate 522 moves away from the top plate 51, the angle between the side plate 521 and the top plate 51 and the connecting plate 522 increases, and at this time the distance between the top plate 51 and the mounting frame 53 decreases under the action of the side plate 521, so that the distance between the first area 14 and the second area 15 decreases, and when the connecting plate 522 moves towards the top plate 51, the angle between the side plate 521 and the top plate 51 and the connecting plate 522 decreases, and the side plate 521 lifts the top plate 51 and the connecting plate 522, at this time the distance between the top plate 51 and the mounting frame 53 increases under the action of the side plate 521, so that the distance between the first area 14 and the second area 15 increases.

[0043] It should be further noted that by moving the connecting plate 522, the height of the top plate 51 is changed by cooperating with the side plate 521 to adjust the position of the first area 14 and the second area 15, so that the distance between the first area 14 and the second area 15 is adjusted conveniently and quickly, and the structure is simple.

[0044] Further, the mounting frame 53 is provided with a sliding hole 531 in the moving direction of the connecting plate 522, and the connecting plate 522 is provided with a connecting piece 54 penetrating the sliding hole 531, and the connecting plate 522 is connected with the mounting frame 53 through the connecting piece 54.

[0045] In application, when the connecting plate 522 needs to be moved, the connecting piece 54 can be unlocked to the connecting plate 522, so that the connecting plate 522 can move on the mounting frame 53, and when the connecting plate 522 moves, it also moves in the sliding hole 531.

[0046] Specifically, the connecting piece 54 is a combination of a bolt and a nut, when the connecting plate 522 needs to be moved, the nut is rotated to unlock the connecting plate 522, and the connecting plate 522 can move on the mounting frame 53, and the bolt can also move in the sliding hole 531.

[0047] It should be noted that each connecting plate 522 can be moved separately, and by moving each connecting plate 522 by different distances, the top plate 51 and the two side plates 521 can be inclined to different degrees, and after the top plate 51 is inclined, the abrasive can further act on the mobile phone shell with different pressures, so that the simulation is more realistic.

[0048] Embodiment 3: The basic content is the same as that of embodiment 1, except that: Please refer to Figures 6-7 The sliding member 3 in the embodiment is detachably connected with the push plate 2, the number of the sliding member 3 is at least one, and the number of the sliding member 3 is positively correlated with the lifting frequency of the push plate 2.

[0049] It should be noted that the number of sliding pieces 3 on the push plate 2 can be adjusted by detachable connection of the sliding pieces 3 and the push plate 2. When the number of sliding pieces 3 increases, the lifting frequency of the push plate 2 in the cylinder 1 will also increase under the action of multiple sliding pieces 3, and when the number of sliding pieces 3 decreases, the frequency of the push plate 2 moving in the cylinder 1 will decrease.

[0050] It can be known that the lifting frequency of the push plate 2 is adjusted to simulate different friction scenarios to improve adaptability. Specifically, the lifting frequency of the push plate 2 can be increased by increasing the number of sliding pieces 3 to simulate high-frequency friction scenarios.

[0051] Further, the sliding piece 3 comprises a threaded column 31 and a pulley 32 connected in sequence, the pulley 32 is connected with the push plate 2 through the threaded column 31, and a plurality of thread grooves 21 are arranged on the push plate 2 corresponding to the position of the threaded column 31 and distributed equidistantly along the circumference, and the distance between the pulley 32 and the push plate 2 is greater than the distance between the first area 14 and the second area 15.

[0052] When the number of sliding pieces 3 needs to be increased or decreased to change the lifting frequency of the push plate 2, the threaded column 31 is rotated in the thread groove 21 through the pulley 32, so that the pulley 32 is connected or separated from the push plate 2.

[0053] It should be noted that when multiple pulleys 32 are installed on the push plate 2, the installation distance of the pulley 32 can also be changed, so that the push plate 2 moves different distances when lifting in the cylinder 1, to enrich the simulation scenarios and improve the test effect.

[0054] Embodiment 4: The basic content is the same as that of embodiment 1, and the difference is that: Please refer to Figures 8-11 In the embodiment, the push plate 2 is provided with a telescopic block 6 which is telescopic with the push plate 2 and is telescopic to the test area 11, the telescopic block 6 is telescopic to extrude the local test area 11, and the telescopic block 6 is retracted to restore the local extrusion.

[0055] Specifically, when the push plate 2 extrudes the test area 11, the telescopic block 6 will extrude the local test area 11 again.

[0056] It should be noted that the secondary extrusion of the local test area 11 by the telescopic block 6 can further enrich the different pressures of the abrasive on the mobile phone shell to improve the test authenticity.

[0057] Further, the push plate 2 is provided with a through hole 23 corresponding to the telescopic block 6, the telescopic block 6 is located in the through hole 23, a connecting part 61 is vertically formed on the outer periphery of the telescopic block 6 and in the through hole 23, a helical groove 231 is formed on the inner wall of the through hole 23 along the axial direction, the end of the connecting part 61 away from the telescopic block 6 extends into the helical groove 231 and is connected with the helical groove 231, a square column 7 is arranged below the telescopic block 6, the telescopic block 6 is inserted on the square column 7, when the push plate 2 rotates and approaches the test area 11, the connecting part 61 drives the telescopic block 6 to approach the test area 11 through the helical groove 231, when the push plate 2 rotates and moves away from the test area 11, the connecting part 61 drives the telescopic block 6 to move away from the test area 11 through the helical groove 231.

[0058] When the push plate 2 rotates and rises in the barrel 1, the push plate 2 is matched with the connecting part 61 through the helical groove 231 in the through hole 23, so that the telescopic block 6 limited by the square column 7 extends out of the through hole 23 to extrude the test area 11, as shown in FIG. 5, and when the push plate 2 descends in the barrel 1, the push plate 2 rotates along with the barrel 1, at this time, the telescopic block 6 retracts in the through hole 23 along with the descent of the push plate 2. Figures 8-9

[0059] It should be noted that after the push plate 2 rotates, the telescopic block 6 limited by the square column 7 moves the connecting part 61 in the helical groove 21, so that the connecting block moves in the through hole 23, thereby making the telescopic block 6 extend and retract along with the rise and fall of the push plate 2.

[0060] Specifically, the straight line distance between the two ends of the helical groove 231 is equal to the telescopic distance of the telescopic block 6, and the straight line distance between the two ends of the helical groove 231 is less than the length of the inner cavity of the through hole 23, the outer diameter of the telescopic block 6 is matched with the inner diameter of the through hole 23, and the connecting part 61 is rotationally connected to the telescopic block 6. It can be known that because the straight line distance between the two ends of the helical groove 231 is less than the length of the inner cavity of the through hole 23, when the push plate 2 rotates to drive the telescopic block 6 to extend and retract, the telescopic block 6 can be prevented from moving out of the through hole 23.

[0061] Further, the telescopic block 6 is provided with an insertion groove 62, the telescopic block 6 is connected with the square column 7 through the insertion groove 62, and the size of the square column 7 is matched with the size of the insertion groove 62.

[0062] It can be understood that when the telescopic block 6 extends and retracts, the telescopic block 6 extends and retracts on the square column 7 through the insertion groove 62, and through the limiting action of the square column 7 and the insertion groove 62 after the telescopic block 6 is connected, the telescopic block 6 can be prevented from rotating along with the push plate 2 and cannot normally extend and retract.

[0063] ​The above-described embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalent replacements; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A wear resistance testing device for mobile phone cases, characterized by: It comprises a self-rotating cylinder (1) and a push plate (2), a sliding member (3) and a protruding component (5) connected in sequence from top to bottom; The push plate (2) is clamped in the cylinder (1), and a test area (11) is formed above the push plate (2) in the cylinder (1); The sliding member (3) and the push plate (2) are rotatably arranged with the cylinder (1) as the axis, and the protruding component (5) is located on the rotation path of the sliding member (3), the top surface and the bottom surface of the protruding component (5) correspond to the rotation path of the sliding member (3) to form a first area (14) and a second area (15), respectively, and the top surface of the protruding component (5) is connected to the sliding member (3); When the sliding member (3) is displaced from the second zone (15) to the first zone (14), the sliding member (3) causes the push plate (2) to rise in level, and the push plate (2) squeezes the test zone (11); when the sliding member (3) is displaced from the first zone (14) to the second zone (15), the sliding member (3) causes the push plate (2) to fall in level, and the push plate (2) restores the test zone (11).

2. The wear resistance testing device for a mobile phone case according to claim 1, characterized in that: The protruding component (5) includes a top plate (51) hinged between two inclined guide units (52), the first area (14) is located on the top surface of the top plate (51), the inclination angle a between the guide unit (52) and the top plate (51) is adjustable, and the horizontal height of the top surface of the top plate (51) and the distance between the first area (14) and the second area (15) change with the inclination angle a.

3. The wear resistance testing device for a mobile phone case according to claim 2, characterized in that: The guide unit (52) comprises a side plate (521) and a connecting plate (522) hinged to each other, the side of the side plate (521) away from the connecting plate (522) being hinged to the top plate (51), and the connecting plate (522) moving along the setting direction of the side plate (521) so that the inclination angle a of the side plate (521) is adjustable; A mounting frame (53) is provided below the connecting plate (522), and the connecting plate (522) slides on the mounting frame (53), and the second area (15) is located on the contact surface between the mounting plate and the connecting plate (522).

4. The wear resistance testing device for a mobile phone case according to claim 3, characterized in that: A sliding hole (531) is provided on the mounting frame (53) along the moving direction of the connecting plate (522), a connecting piece (54) passing through the sliding hole (531) is provided on the connecting plate (522), and the connecting plate (522) is connected to the mounting frame (53) via the connecting piece (54).

5. The wear resistance testing device for a mobile phone case according to claim 1, characterized in that: The sliding member (3) is detachably connected to the push plate (2), the number of the sliding member (3) is at least one, and the number of the sliding member (3) is positively correlated with the lifting frequency of the push plate (2).

6. The wear resistance testing device for a mobile phone case according to claim 5, characterized in that: The sliding member (3) comprises a threaded column (31) and a pulley (32) connected in sequence, the pulley (32) being connected to the push plate (2) via the threaded column (31), a plurality of threaded grooves (21) being circumferentially and evenly spaced apart are provided on the push plate (2) at positions corresponding to the threaded column (31), and the spacing between the pulley (32) and the push plate (2) being greater than the spacing between the first zone (14) and the second zone (15).

7. The wear resistance testing device for a mobile phone case according to claim 1, characterized in that: A spiral protrusion (12) is formed on the inner wall of the cylinder (1) along its circumference, and a groove (22) is formed on the outer periphery of the push plate (2) corresponding to the protrusion (12), and the protrusion (12) is connected to the groove (22); the outer periphery of the protrusion (12) is a circular arc surface (121), and the size of the protrusion (12) and the groove (22) are adapted to each other.

8. The wear resistance testing device for a mobile phone case according to claim 1, characterized in that: The push plate (2) is provided with a retractable telescopic block (6), and the telescopic block (6) is extended and retracted toward the test area (11) as the push plate (2) rises and falls. The telescopic block (6) extends to squeeze the local test area (11), and retracts to restore the local squeezed area.

9. The wear resistance testing device for a mobile phone case according to claim 8, characterized in that: The push plate (2) is provided with a through opening (23) corresponding to the telescopic block (6), the telescopic block (6) is located in the through opening (23), a connecting portion (61) is vertically formed at a portion of the telescopic block (6) located in the through opening (23), a spiral groove (231) is provided on the inner wall of the through opening (23) along its axial direction, the connecting portion (61) extends from one end of the telescopic block (6) into the spiral groove (231) and is connected to the spiral groove (231), and the telescopic block (6) is provided with a through opening (231) at a position corresponding to the telescopic block (6). A square column (7) is provided below the retractable block (6), and the retractable block (6) is plugged into the square column (7). When the push plate (2) rotates and approaches the test area (11), the connecting portion (61) drives the retractable block (6) to approach the test area (11) through the spiral groove (231); when the push plate (2) rotates and moves away from the test area (11), the connecting portion (61) drives the retractable block (6) to move away from the test area (11) through the spiral groove (231).

10. The wear resistance testing device for a mobile phone case according to claim 1, characterized in that: A workbench (8) is provided below the cylinder (1), a driving assembly (9) is provided on the workbench (8) via a mounting frame (53), the cylinder (1) is provided in the driving assembly (9), and the driving assembly (9) is used to drive the cylinder (1) to rotate.

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