Shock resistance testing device for mobile phone display screen

Abstract

The utility model belongs to the field of mobile phone display screen production, and particularly relates to an anti-vibration testing device for a mobile phone display screen. The utility model aims to provide a mobile phone display screen anti-vibration testing device capable of displaying anti-vibration strength data, which comprises a bottom shell, a variable frequency motor, a first cam, a detection box, a protective cover and the like, the variable frequency motor is mounted at the bottom in the bottom shell, and the first cam is slidably arranged at the upper part of an output shaft of the variable frequency motor; a detection box is rotationally arranged on an output shaft of the variable frequency motor, the first cam is located in the detection box and rotationally connected with the detection box, and a protective cover is rotationally arranged on one side of the detection box and clamps the detection box. According to the utility model, the force transducer can transmit the vibration force to the numerical value display screen, so that the vibration force of the mobile phone display screen can be displayed, and people can conveniently record the data of the vibration force.

Description

Technical Field

[0001] The utility model belongs to the field of mobile phone display screen production, and in particular relates to a mobile phone display screen anti-vibration testing device. Background Art

[0002] A mobile phone display is a display tool that displays certain electronic files on the screen through specific transmission equipment and then reflects them to the human eye. During the production process, the performance of mobile phone displays needs to be tested, including shock resistance testing.

[0003] At present, people usually test mobile phone displays through anti-seismic testing devices. First, people place the mobile phone display in the anti-seismic testing device, and then test the anti-seismic performance of the mobile phone display through the vibration of the anti-seismic testing device. However, the existing anti-seismic testing device is not equipped with a detector that can display the vibration intensity, which is inconvenient for recording and collecting data.

[0004] In summary, there is an urgent need for a mobile phone display screen seismic testing device that can display seismic strength data to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing earthquake resistance detection device that there is no detector capable of displaying the vibration intensity, making it inconvenient to record and collect data, the purpose of the utility model is to provide a mobile phone display screen earthquake resistance testing device capable of displaying earthquake resistance intensity data.

[0006] The technical solution of the utility model is:

[0007] A mobile phone display screen seismic test device comprises a bottom shell, a variable frequency motor, a first cam, a detection box, a protective cover, a force sensor and a numerical display screen, wherein the variable frequency motor is installed at the bottom of the bottom shell, the first cam is slidably arranged on the upper part of the output shaft of the variable frequency motor, the detection box is rotatably arranged on the output shaft of the variable frequency motor, the first cam is located inside the detection box and is rotatably connected thereto, a protective cover is rotatably arranged on one side of the detection box, the protective cover clamps the detection box, force sensors are installed on four sides of the inner wall of the detection box, a numerical display screen is installed on the front side of the detection box, and the numerical display screen is electrically connected to the force sensor.

[0008] In one of the embodiments, a timer is further included, and the timer is installed on the front side of the detection box.

[0009] In one of the embodiments, it also includes a fixed shaft, a second cam, a bevel gear and an elastic member. The fixed shaft is rotatably arranged on both sides of the bottom shell, and the fixed shaft passes through the inside of the bottom shell. The outside of the fixed shaft is connected to the second cam. The bevel gears are respectively connected to the inner side of the fixed shaft and the output shaft of the variable frequency motor. The two bevel gears on the upper side are respectively meshed with the bevel gears on the lower side. An elastic member is connected between the bottom of the first cam and the variable frequency motor.

[0010] In one of the embodiments, heat dissipation holes are spaced apart on the outer wall of the bottom shell, and the heat dissipation holes are all arranged in a mesh shape.

[0011] In one embodiment, a mounting seat is further included, and the four sides of the outer wall of the bottom shell are connected to the mounting seat.

[0012] In one of the embodiments, the protective cover is made of transparent material.

[0013] The beneficial effects of the utility model are:

[0014] 1. The force sensor of the utility model can transmit the vibration intensity to the numerical display screen, so that the vibration intensity of the mobile phone display screen can be displayed, which is convenient for people to record the data of the vibration intensity.

[0015] 2. The utility model can detect the anti-seismic performance of different mobile phone display screens at the same time by starting the timer.

[0016] 3. The utility model uses a variable frequency motor as a driving force to drive the bevel gear to rotate. The rotation of the bevel gear drives the fixed shaft and the second cam to rotate. The rotation of the second cam can drive the second cam and the detection box to reciprocate up and down, thereby further vibrating and increasing the vibration frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the bottom shell, frequency conversion motor, detection box and other parts of the utility model.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the utility model's frequency conversion motor, bevel gear and other components.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the elastic part and other components of the utility model.

[0021] Figure 5 It is a three-dimensional structural schematic diagram of components such as a numerical display screen and a force sensor of the utility model.

[0022] Markings in the accompanying drawings: 1: bottom shell, 2: frequency conversion motor, 3: first cam, 4: detection box, 5: protective cover, 6: timer, 7: fixed shaft, 8: second cam, 9: bevel gear, 10: elastic part, 11: heat dissipation hole, 12: mounting seat, 13: numerical display screen, 14: force sensor. DETAILED DESCRIPTION

[0023] The present invention will now be described more fully below with reference to the accompanying drawings, in which the present invention is shown in its currently preferred embodiments. However, the present invention can be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and these embodiments fully convey the scope of the present invention to the skilled person.

[0024] Embodiment: A mobile phone display screen anti-vibration test device, see Figure 1-Figure 5 As shown, it includes a bottom shell 1, a variable frequency motor 2, a first cam 3, a detection box 4, a protective cover 5, a timer 6, a fixed shaft 7, a second cam 8, a bevel gear 9, an elastic member 10, a mounting seat 12, a force sensor 14 and a numerical display screen 13. The variable frequency motor 2 is installed in the middle of the bottom of the bottom shell 1, and the first cam 3 is slidably arranged on the upper part of the output shaft of the variable frequency motor 2. The detection box 4 is rotatably arranged on the output shaft of the variable frequency motor 2 through a coupling. The vibration of the detection box 4 can detect the seismic performance of the mobile phone display screen. The first cam 3 is located inside the detection box 4 and is rotatably connected thereto. A protective cover 5 is rotatably arranged on one side of the detection box 4. The protective cover 5 clamps the detection box 4. The protective cover 5 is made of transparent material. A timer 6 is installed on the front side of the detection box 4. Fixed Shaft 7, and the fixed shaft 7 runs through the inside of the bottom shell 1, a second cam 8 is welded on the outside of the fixed shaft 7, and the rotation of the second cam 8 can make the detection box 4 reciprocate up and down for further vibration, the bevel gears 9 are respectively connected to the inner side of the fixed shaft 7 and the output shaft of the frequency conversion motor 2, the two bevel gears 9 on the upper side are respectively meshed with the bevel gear 9 on the lower side, an elastic member 10 is connected between the bottom of the first cam 3 and the frequency conversion motor 2, the outer wall of the bottom shell 1 is spaced apart with heat dissipation holes 11, the heat dissipation holes 11 are all meshed, the four sides of the outer wall of the bottom shell 1 are connected with mounting seats 12 by bolts, the four sides of the inner wall of the detection box 4 are installed with force sensors 14, the force sensors 14 are used to detect the vibration intensity, and a numerical display screen 13 is installed on the front side of the detection box 4, and the numerical display screen 13 is electrically connected to the force sensor 14.

[0025] When the device needs to be used, people first fix the device in the specified position through the mounting base 12 and the bolts, then open the protective cover 5 and rotate it backward, then place the mobile phone display screen in the detection box 4, then rotate the protective cover 5 forward and re-clamp it on the detection box 4. At this time, people start the timer 6 for timing, and then start the frequency conversion motor 2. The output shaft of the frequency conversion motor 2 rotates to drive the first cam 3 to rotate, and the rotation of the first cam 3 drives the detection box 4 to move a certain amount, so that the mobile phone display screen in the detection box 4 vibrates. At the same time, the rotation of the output shaft of the frequency conversion motor 2 can drive the bevel gear 9 to rotate, and the rotation of the bevel gear 9 drives the fixed shaft 7 to rotate, and the rotation of the fixed shaft 7 drives the second cam 8 to rotate, and the rotation of the second cam 8 will squeeze the detection box 4 to move upward, and the upward movement of the detection box 4 drives the first cam 3 to move upward. When the second cam 8 is moved upward, the elastic member 10 is stretched. When the second cam 8 is separated from the detection box 4, the elastic member 10 returns to its original state, which can drive the second cam 8 and the detection box 4 to move downward and reset, so that the detection box 4 reciprocates up and down, and then further vibrates. While the mobile phone display screen is vibrating, it will contact the force sensor 14 and transmit the vibration intensity to the numerical display screen 13, so that the vibration intensity of the mobile phone display screen can be displayed, which is convenient for people to record the data of the vibration intensity. People can adjust the speed of the variable frequency motor 2 to detect the seismic resistance of the mobile phone display screen at different vibration frequencies. When the timer 6 reaches a fixed time, people turn off the variable frequency motor 2 to complete the seismic resistance test of the mobile phone display screen. During the operation of the device, the heat dissipation holes 11 are used for certain heat dissipation and ventilation.

[0026] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A mobile phone display screen anti-seismic testing device, comprising a bottom shell (1), a variable frequency motor (2), a first cam (3), a detection box (4) and a protective cover (5), wherein the variable frequency motor (2) is mounted on the bottom of the bottom shell (1), the first cam (3) is slidably arranged on the upper part of the output shaft of the variable frequency motor (2), the detection box (4) is rotatably arranged on the output shaft of the variable frequency motor (2), the first cam (3) is located inside the detection box (4) and is rotatably connected thereto, and the protective cover (5) is rotatably arranged on one side of the detection box (4), wherein: It also includes a force sensor (14) and a numerical display screen (13), wherein the force sensor (14) is mounted on four sides of the inner wall of the detection box (4), and the numerical display screen (13) is mounted on the front side of the detection box (4), and the numerical display screen (13) is electrically connected to the force sensor (14).

2. A mobile phone display screen anti-vibration testing device as claimed in claim 1, characterized in that: It also includes a timer (6), which is installed on the front side of the detection box (4).

3. A mobile phone display screen anti-vibration testing device as claimed in claim 2, characterized in that: The invention also comprises a fixed shaft (7), a second cam (8), a bevel gear (9) and an elastic member (10); the fixed shaft (7) is rotatably arranged on the left and right sides of the bottom shell (1), and the fixed shaft (7) passes through the inside of the bottom shell (1); the second cam (8) is connected to the outside of the fixed shaft (7); the bevel gear (9) is respectively connected to the inside of the fixed shaft (7) and the output shaft of the variable frequency motor (2); the two bevel gears (9) on the upper side are respectively meshed with the bevel gear (9) on the lower side; and the elastic member (10) is connected between the bottom of the first cam (3) and the variable frequency motor (2).

4. A mobile phone display screen anti-vibration testing device as claimed in claim 3, characterized in that: The heat dissipation holes (11) are spaced apart from the outer wall of the bottom shell (1).

5. A mobile phone display screen anti-vibration testing device as claimed in claim 4, characterized in that: It also includes a mounting seat (12), wherein the mounting seat (12) is connected to four sides of the outer wall of the bottom shell (1).

6. A mobile phone display screen anti-vibration testing device as claimed in claim 1, characterized in that: It also includes that the protective cover (5) is made of transparent material.

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