A mobile phone protective film anti-puncture detector

Abstract

The present invention relates to the field of mobile phone protective film detectors, and discloses a mobile phone protective film anti-puncture detector, including a base, a fixing mechanism and a pressure mechanism; the pressure mechanism includes columns arranged on both sides of the base, a top plate is arranged at the end of the column, a vertical plate is arranged in the middle of the top plate, the vertical plate is rotatably connected to a winding wheel, a suspension rope is wound around the outside of the winding wheel, the free end of the suspension rope is connected to a pressure sensor, the side of the pressure sensor close to the base is connected to one end of a force transmission spring, the other end of the force transmission spring is connected to a lifting beam slidably connected to the column, and a puncture head is arranged on the side of the lifting beam close to the base. The present invention can perform a dynamic puncture test on the protective film by free fall through the lifting beam, and at the same time, a force transmission spring is arranged between the pressure sensor and the lifting beam, and the length of the force transmission spring is changed to adjust the pressure of the puncture head on the protective film, thereby realizing the puncture test of the protective film in static state.

Description

Technical Field

[0001] The invention relates to the field of mobile phone protective film detectors, in particular to a mobile phone protective film anti-puncture detector. Background Art

[0002] With the popularity of mobile phones, people often use protective films on the screens of their mobile phones when using them. Among them, tempered film is the most enhanced protective product for the screen, which can completely cover the original screen to prevent damage from external forces. Therefore, the mobile phone protective film itself needs to be tested for strength, one of which is the puncture resistance test.

[0003] The existing anti-puncture test is simply to use a tensile testing machine to drive the detection head to slowly press down on the protective film for detection and processing. However, the mobile phone may be damaged by falling during use. At this time, the detection head needs to quickly approach the protective film for dynamic monitoring. The traditional tensile testing machine cannot simulate the fall of a free fall, so it needs to be improved. Summary of the invention

[0004] The present invention provides a mobile phone protective film anti-puncture detector, which solves the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A mobile phone protective film anti-puncture detector comprises a base, a fixing mechanism and a pressure mechanism; the fixing mechanism comprises a supporting seat arranged in the middle of the base, a pressure plate is arranged on the supporting seat, and a height adjustment component for adjusting the height of the pressure plate is arranged inside the base; the pressure mechanism comprises columns arranged on both sides of the base, top plates are arranged at the ends of the columns, a vertical plate is arranged in the middle of the top plate, the vertical plate is rotatably connected to a winding wheel, a suspension rope is wound around the outside of the winding wheel, the free end of the suspension rope is connected to a pressure sensor, the side of the pressure sensor close to the base is connected to one end of a force transmission spring, the other end of the force transmission spring is connected to a lifting beam slidably connected to the column, a puncture head is arranged on the side of the lifting beam close to the base, a rotation drive component for driving the winding wheel to rotate is arranged at the end of the top plate, and after the rotation drive component is separated from the winding wheel, the winding wheel rotates freely only under the tension of the suspension rope.

[0007] As a preferred technical solution of the present invention, a rotation drive assembly is provided at both ends of the top plate, and the speed ratios of the two rotation drive assemblies are different. The rotation drive assembly includes a fixed block provided at the end of the top plate, a sliding rod is slidably connected to the middle of the fixed block, and a transverse plate is fixedly connected to one end of the sliding rod close to the center of the top plate, and a driven gear detachably connected to the winding wheel is rotatably connected to the side of the transverse plate close to the top plate, and the driven gear rotates synchronously after being connected to the winding wheel, and the end of the transverse plate is rotatably connected to the main shaft, and the main shaft is fixedly connected to a driving gear meshing with the driven gear, and the number of teeth of the driving gear on one side is greater than the number of teeth of the driven gear, and the number of teeth of the driving gear on the other side is less than the number of teeth of the driven gear.

[0008] As a preferred technical solution of the present invention, a driving rod is fixedly connected to the side of the driven gear close to the winding wheel, and a driving groove is provided in the middle of the winding wheel. The cross-sections of the driving groove and the driving rod are both polygonal structures of the same size. A limiting rod is slidably connected to the middle of the transverse plate located on the side where the number of teeth of the driving gear is greater than that of the driven gear. A pressure block is fixedly connected to the end of the limiting rod. A limiting spring is provided between the pressure block and the transverse plate to drive the pressure plate to move away from the transverse plate. A bite plate located between the driving gear and the driven gear is provided in the middle of the pressure block. When the winding wheel releases the sling and the bite plate contacts the driving gear and the driven gear, the driving gear and the driven gear press the bite plate.

[0009] As a preferred technical solution of the present invention, a through hole is provided in the middle of the top plate, and a lever cooperating with the lifting rope is provided on the side of the vertical plate. Counterweight blocks with variable weight are provided at both ends of the lifting beam, and a support plate is rotatably connected to the end of the base. A counterweight rod is provided on the side of the support plate away from the base. After the support plate is disengaged from the lifting beam, the support plate rotates in a direction away from the supporting seat.

[0010] As a preferred technical solution of the present invention, the height adjustment assembly includes a clamping slide rod which is arranged on the outside of the supporting seat and is slidably connected to the base, one end of the clamping slide rod is fixedly connected to the pressure plate, and the other end of the clamping slide rod is fixedly connected to the support plate, and a clamping spring for driving the pressure plate to move toward the supporting seat is arranged between the support plate and the base, a suspension plate is arranged on the side of the base, a push rod is slidably connected to the middle of the suspension plate, and a triangular top block cooperating with the support plate is arranged on the side of the push rod, and when the triangular top block contacts the support plate, the pressure plate moves in the direction away from the supporting seat.

[0011] The present invention has the following benefits:

[0012] The lifting beam can be used to perform free fall to carry out dynamic puncture test on the protective film. At the same time, a force transmission spring is set between the pressure sensor and the lifting beam and the length of the force transmission spring is changed to adjust the pressure of the puncture head on the protective film, thereby realizing the puncture test of the protective film in static state, thereby simulating the two puncture conditions of free fall and pressing of the mobile phone in actual use, so that the test results are more in line with actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 The figure is a schematic diagram of the structure of a mobile phone protective film anti-puncture detector.

[0015] Figure 2 The figure is a front view of a mobile phone protective film anti-puncture tester.

[0016] Figure 3 The figure is a schematic diagram of the structure of the top plate in a mobile phone protective film anti-puncture tester.

[0017] Figure 4 for Figure 3 Front view of .

[0018] Figure 5 The figure is a schematic diagram of the structure of a rotating drive component in a mobile phone protective film anti-puncture detector.

[0019] Figure 6 The figure is a schematic diagram of the structure of a winding wheel in a mobile phone protective film anti-puncture tester.

[0020] Figure 7 The figure is a schematic diagram of the structure of a lifting beam in a mobile phone protective film anti-puncture tester.

[0021] Figure 8 The present invention is a schematic diagram of the structure of the cooperation between the pressure plate and the supporting seat in a mobile phone protective film anti-puncture tester.

[0022] Fig. 9 The figure is a schematic diagram of the structure inside the base of a mobile phone protective film anti-puncture detector.

[0023] In the figure: 1, base; 2, fixing mechanism; 3, pressure mechanism; 4, column; 5, lifting beam; 6, puncture head; 7, force transmission spring; 8, pressure sensor; 9, lifting rope; 10, counterweight block; 11, support plate; 12, counterweight rod; 13, top plate; 14, rotation drive assembly; 15, winding wheel; 16, vertical plate; 17, transverse plate; 18, sliding rod; 19, fixing block; 20, driving rod; 21, driven gear Wheel; 22, pressure block; 23, limit spring; 24, limit rod; 25, bite plate; 26, main shaft; 27, driving gear; 28, handle; 29, gear lever; 30, through hole; 31, driving groove; 32, supporting seat; 33, pressure plate; 34, height adjustment component; 35, suspension plate; 36, push rod; 37, triangular top block; 38, support plate; 39, clamping slide bar; 40, clamping spring; 41, inclined rope. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In one embodiment, see Figure 1-Figure 9 , a mobile phone protective film anti-puncture detector, comprising a base 1, a fixing mechanism 2 and a pressure mechanism 3;

[0026] The fixing mechanism 2 includes a supporting seat 32 arranged in the middle of the base 1. The supporting seat 32 is arranged in the middle of the upper surface of the base 1, and the middle of the supporting seat 32 can be hollow or solid, and can be freely replaced according to the detection requirements of the protective film, and a pressing plate 33 is arranged above the supporting seat 32, and the protective film is pressed on the supporting seat 32 by the pressing plate 33. The pressing plate 33 is a U-shaped structure, so the exposed part of the middle of the pressing plate 33 is the part of the protective film that can be punctured. The bottom of the base 1 is hollow, so a height adjustment component 34 can be arranged below the base 1, and the height adjustment component 34 controls the height of the pressing plate 33, that is, controls the pressing plate 33 to release or clamp the protective film;

[0027] The pressure mechanism 3 includes columns 4 arranged on both sides of the base 1. The columns 4 are vertically arranged on the left and right sides of the supporting seat 32. The top of the column 4 is fixedly connected to the top plate 13 arranged in the left and right directions. In order to improve the stability, inclined ropes 41 are arranged at the four corners of the top plate 13 and the four corners of the base 1, so that the column 4 can stably maintain a vertical state. A vertical plate 16 is arranged in the middle of the upper surface of the top plate 13. The upper part of the vertical plate 16 is rotatably connected to the winding wheel 15. The outer part of the winding wheel 15 is wound with a suspension rope 9. The lower free end of the suspension rope 9 is connected to the upper part of the pressure sensor 8. The lower surface of the pressure sensor 8 is connected to the upper end of the force transmission spring 7. The pressure sensor 8 can detect the change of the tension of the suspension rope 9 on the force transmission spring 7, and at the lower end of the force transmission spring 7 The middle part of the upper surface of the lifting beam 5 arranged in the left and right directions is connected, and the left and right sides of the lifting beam 5 are slidably connected to the column 4, so that the lifting beam 5 can move up and down while maintaining a vertical state, and a sliding sleeve is arranged between the lifting beam 5 and the column 4 to reduce the friction of the lifting beam 5 sliding up and down. A puncture head 6 is arranged in the middle part of the lower surface of the lifting beam 5. The protective film is punctured by the puncture head 6. A rotation drive component 14 is also arranged on the top plate 13. The rotation drive component 14 can drive the winding wheel 15 to rotate, and the rotation drive component 14 can also be separated from the winding wheel 15. After separation, the winding wheel 15 is only subjected to the downward pulling force of the suspension rope 9, that is, when separated, the downward movement of the free fall of the lifting beam 5 can be simulated to realize dynamic puncture processing.

[0028] In one case of the present embodiment, a rotary drive assembly 14 is provided at both ends of the left and right ends of the top plate 13, and the speed ratios of the two rotary drive assemblies 14 are different. When the speed ratio of the rotary drive assembly 14 is relatively large, the rotary drive assembly 14 can quickly drive the winding wheel 15 to rotate, thereby realizing the rapid movement of the lifting beam 5. When the rotary drive assembly 14 with a relatively small speed ratio drives the winding wheel 15 to connect, the rotary drive assembly 14 will slowly drive the lifting beam 5 to move up and down, thereby realizing the effect of fine-tuning, so that the operator can more accurately control the pressure of the puncture head 6 on the protective film.

[0029] In one case of the present embodiment, the rotary drive assembly 14 includes a fixed block 19 arranged at both ends of the top plate 13, the middle part of the fixed block 19 is slidably connected with a slide bar 18 arranged in a left-right direction, and a handle 28 is arranged at the end of the slide bar 18 away from the center of the top plate 13. The operator pulls the slide bar 18 to move left and right through the handle 28, and the end of the slide bar 18 close to the center of the top plate 13 is fixedly connected to the lower part of the vertically arranged transverse plate 17, and the middle part of the transverse plate 17 is rotatably connected with a driven gear 21, and the end of the driven gear 21 close to the center of the top plate 13 is provided with a driving rod 20, and a driving groove 31 is provided in the middle part of the winding wheel 15. The cross-sections of the driving groove 31 and the driving rod 20 are polygonal structures with the same size, so when the driving rod 20 is inserted After the driving groove 31 is engaged, the winding wheel 15 will rotate synchronously with the driven gear 21. When the driving rod 20 is disengaged from the driving groove 31, the winding wheel 15 can rotate freely and rotate at the upper end of the transverse plate 17 to connect the main shaft 26 set in the left and right directions. The main shaft 26 is fixedly connected with a driving gear 27 meshing with the driven gear 21. The number of teeth of the driving gear 27 on the left is less than the number of teeth of the driven gear 21 on the left. Therefore, when the driving gear 27 on the left rotates, the angular velocity of the driven gear 21 is smaller. At this time, the rotation speed of the winding wheel 15 is slower. The number of teeth of the driving gear 27 on the right is greater than the number of teeth of the driven gear 21. Therefore, when the driving gear 27 on the right rotates, the angular velocity of the driven gear 21 is larger. At this time, the rotation speed of the winding wheel 15 is faster.

[0030] In one case of the present embodiment, in the present application, the rope 9 on the rear side of the winding wheel 15 extends downward, and a through hole 30 is set in the middle of the top plate 13, and the rope 9 passes through the through hole 30. A stopper 29 is set on the rear side of the vertical plate 16. The stopper 29 will hold up the rope 9 to prevent the rope 9 from rubbing against the inner wall of the through hole 30. Therefore, when the rope 9 is subjected to the gravity of the lifting beam 5, the winding wheel 15 rotates clockwise when viewed from the right side. When the driven gear 21 on the right side rotates synchronously with the winding wheel 15, the driven gear 21 on the right side will also rotate clockwise. At this time, a limit rod 24 set in the front and rear directions is slidably connected in the middle of the front side of the right transverse plate 17. The front of the limit rod 24 The left end of the pressure block 22 is fixedly connected to the left and right ends, and a bite piece 25 is set on the rear side of the pressure block 22. A limit spring 23 is set between the pressure block 22 and the transverse plate 17. The limit spring 23 is sleeved on the outside of the limit rod 24. The limit spring 23 will push the pressure block 22 to the front side. The bite piece 25 is made of rubber. When the bite piece 25 moves backward, the bite piece 25 will be inserted between the driven gear 21 and the driving gear 27. At this time, due to the clockwise rotation of the driven gear 21, the teeth of the driven gear 21 and the driving gear 27 will clamp the bite piece 25. At this time, the driven gear 21 stops rotating, thereby achieving the effect of locking the height of the lifting beam 5.

[0031] In one case of the present embodiment, counterweight blocks 10 are arranged at the left and right ends of the lifting beam 5, and the weight of the counterweight blocks 10 can be freely selected to change the overall weight of the lifting beam 5, and the end of the support plate 11 is rotatably connected to the upper surface of the base 1, and a counterweight rod 12 is arranged on the side of the support plate 11 away from the base 1, so that the center of gravity of the support plate 11 and the counterweight rod 12 as a whole is located on the outside of the base 1. When the support plate 11 is rotated to a vertical state, the lifting beam 5 can be pressed on the support plate 11. At this time, the support plate 11 can support the lifting beam 5, so that the puncture head 6 is away from the protective film below, thereby facilitating the installation of the protective film. However, when the lifting beam 5 moves slightly upward and disengages from the support plate 11, the support plate 11 will rotate in the direction away from the base 1. At this time, the lifting beam 5 will not interfere with the support plate 11 after it falls again, and the puncture head 6 can contact the protective film.

[0032] In one case of the present embodiment, the height adjustment assembly 34 includes a clamping slide bar 39 which is arranged on the outside of the supporting seat 32 and is slidably connected to the base 1. The four clamping slide bars 39 are arranged vertically. The upper ends of the clamping slide bars 39 are fixedly connected to the four corners of the lower surface of the pressure plate 33. The lower ends of the clamping slide bars 39 are fixedly connected to the support plates 38. The support plates 38 are arranged in a left-right direction. The bottom of the base 1 is hollow. The two left-right support plates 38 are respectively arranged on the front and rear sides. A clamping spring 40 is arranged between the support plate 38 and the base 1. The clamping spring 40 is sleeved on the clamping slide bar 39 The outside of the support plate 38 is pulled downward by the clamping spring 40, and a suspension plate 35 is vertically arranged on the left side of the lower surface of the base 1. The suspension plate 35 is slidably connected to the push rod 36 arranged in the left and right directions. A triangular top block 37 is arranged on the front and rear sides of the push rod 36. The upper right side of the triangular top block 37 is an inclined surface. Therefore, when the triangular top block 37 moves to the right, the right inclined surface of the triangular top block 37 will contact the left end of the support plate 38. At this time, the left end of the support plate 38 moves upward along the right inclined surface of the triangular top block 37, thereby causing the clamping slide bar 39 to move upward, causing the pressure plate 33 to move upward.

[0033] During the implementation of this embodiment, the handle 28 on the right is pushed to move to the left, the driving rod 20 on the right is inserted into the driving groove 31, the winding wheel 15 is driven to rotate through the active gear 27, the lifting rope 9 pulls the lifting beam 5 to move upward, and after the support plate 11 is rotated to a vertical state, the lifting beam 5 is lowered again. The left and right ends of the lifting beam 5 fall on the support plate 11, and the push rod 36 is pushed to the right, the pressing plate 33 is lifted, and the protective film to be tested is placed on the supporting seat 32. After adjusting the position, the push rod 36 is pulled to the left, the triangular top block 37 is disengaged from the supporting plate 38, and the pressing plate 33 is pressed tightly on the protective film, and the protective film is fixed.

[0034] In the dynamic puncture test, the driving rod 20 on the right is inserted into the driving slot 31, and the winding wheel 15 is driven by the driving gear 27 to quickly retract the lifting rope 9. The lifting rope 9 pulls the lifting beam 5 upward. When the lifting beam 5 moves to the target position, the driving gear 27 is stopped, and the pressure block 22 is pushed backward. The bite piece 25 is inserted between the driving gear 27 and the driven gear 21. The rising height of the lifting beam 5 and the weight of the counterweight 10 can be freely adjusted according to the test parameter requirements. The handle 28 is pulled to the right, and the driving rod 20 moves to the right and disengages from the driving slot 31. At this time, the lifting beam 5 falls in a free fall manner, and the puncture head 6 falls on the protective film. Observe whether the protective film is damaged and judge the performance of the protective film in the dynamic puncture test.

[0035] In the static puncture test, the pressure sensor 8 is connected to the relevant numerical display device, the driving rod 20 on the left is moved to the right and inserted into the driving slot 31, and the active gear 27 on the left is turned. The lifting beam 5 rises slightly, and the support plate 11 deflects and disengages from the lifting beam 5. At this time, the active gear 27 is turned in the opposite direction, and the lifting beam 5 slowly descends. When the puncture head 6 falls on the protective film, the value of the pressure sensor 8 changes. At this time, the length of the spring is also decreasing, and the pressure of the puncture head 6 on the protective film gradually increases. Under the action of continuously changing pressure, observe at what pressure the protective film will be damaged, so as to judge the performance of the protective film in the static puncture test.

[0036] The present invention is applicable to a mobile phone protective film anti-puncture detector, which can perform a dynamic puncture test on the protective film by free fall through a lifting beam 5, and simultaneously, by arranging a force transmission spring 7 between a pressure sensor 8 and the lifting beam 5, the length of the force transmission spring 7 is changed to adjust the pressure of the puncture head 6 on the protective film, thereby realizing a puncture test of the protective film in a static state, thereby simulating two puncture conditions of a mobile phone when it is freely dropped and when it is pressed during actual use, so that the test result is more in line with actual use.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A mobile phone protective film anti-puncture detector, characterized in that: It includes a base, a fixing mechanism and a pressure-applying mechanism; The fixing mechanism comprises a supporting seat arranged in the middle of the base, a pressing plate is arranged on the supporting seat, and a height adjustment component for adjusting the height of the pressing plate is arranged inside the base; The pressure-applying mechanism comprises columns arranged on both sides of the base, a top plate is arranged at the end of the column, a vertical plate is arranged in the middle of the top plate, the vertical plate is rotatably connected to the winding wheel, a suspension rope is wound around the outside of the winding wheel, the free end of the suspension rope is connected to a pressure sensor, the side of the pressure sensor close to the base is connected to one end of a force transmission spring, the other end of the force transmission spring is connected to a lifting beam slidably connected to the column, and a puncture head is arranged on the side of the lifting beam close to the base, a rotating drive component for driving the winding wheel to rotate is arranged at the end of the top plate, after the rotating drive component is separated from the winding wheel, the winding wheel can rotate freely only under the tension of the suspension rope, rotating drive components are arranged at both ends of the top plate, and the speed ratios of the two rotating drive components are different, and the rotating drive component comprises a fixed block arranged at the end of the top plate, a sliding rod is slidably connected to the middle part of the fixed block, a transverse plate is fixedly connected to one end of the sliding rod close to the center of the top plate, and a transverse plate is rotatably connected to a detachable connection with the winding wheel on the side close to the top plate The driven gear is connected with the winding wheel and rotates synchronously after being connected, and the end of the transverse moving plate is rotatably connected with the main shaft, and the main shaft is fixedly connected with a driving gear meshing with the driven gear, the number of teeth of the driving gear on one side is greater than the number of teeth of the driven gear, and the number of teeth of the driving gear on the other side is less than the number of teeth of the driven gear, and the middle part of the transverse moving plate on the side where the number of teeth of the driving gear is greater than the number of teeth of the driven gear is slidably connected with a limiting rod, and the end of the limiting rod is fixedly connected with a pressure block, and a limit spring is arranged between the pressure block and the transverse moving plate, driving the pressure plate to move in the direction away from the transverse moving plate. The middle part of the pressure block is provided with a bite piece located between the driving gear and the driven gear. When the winding wheel releases the lifting rope and the bite piece contacts with the driving gear and the driven gear, the driving gear and the driven gear press the bite piece, and the driven gear is fixedly connected with a driving rod on the side of the driven gear close to the winding wheel, and a driving groove is arranged in the middle of the winding wheel, and the cross-sections of the driving groove and the driving rod are both polygonal structures with the same size.

2. A mobile phone protective film anti-puncture detector according to claim 1, characterized in that: A through hole is arranged in the middle of the top plate, and a shift rod matched with the hanging rope is arranged on the side of the vertical plate.

3. The mobile phone protective film anti-puncture detector according to claim 1, characterized in that: Counterweight blocks with variable weights are arranged at both ends of the lifting beam, and a support plate is rotatably connected to the end of the base. A counterweight rod is arranged on the side of the support plate away from the base. After the support plate is disengaged from the lifting beam, the support plate rotates in a direction away from the supporting seat.

4. The mobile phone protective film anti-puncture detector according to claim 1, characterized in that: The height adjustment assembly includes a clamping slide bar which is arranged on the outside of the supporting seat and is slidably connected to the base, one end of the clamping slide bar is fixedly connected to the pressure plate, and the other end of the clamping slide bar is fixedly connected to the support plate, and a clamping spring which drives the pressure plate to move toward the supporting seat is arranged between the support plate and the base, a suspension plate is arranged on the side of the base, a push rod is slidably connected to the middle of the suspension plate, and a triangular top block which cooperates with the support plate is arranged on the side of the push rod, and when the triangular top block contacts the support plate, the pressure plate moves in the direction away from the supporting seat.

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