Small display screen strength detection equipment

Abstract

The invention relates to the technical field of detection, in particular to small display screen strength detection equipment which comprises a fixing frame, a hydraulic push rod, an electromagnet and the like. A hydraulic push rod is mounted on the fixing frame; electromagnets are arranged at the telescopic ends of the hydraulic push rods. According to the device, the hydraulic push rod moves up and down in a reciprocating manner, so that a detection ball impacts the surface of a display screen in a reciprocating manner, the display screen is continuously impacted, the detection ball does not need to be repeatedly picked up manually, and the detection efficiency of the display screen is improved; the hydraulic push rod drives the fixed column to move up and down in a reciprocating manner, so that the bottom of the fixed column collides with the display screen, and therefore, the comprehensive impact resistance of the display screen at different stress points can be detected; therefore, the surface contact impact of an object with a large contact area on the display screen is simulated, the detection condition is more suitable for the actual use scene, and the strength detection accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and in particular to a small display screen strength detection device. Background Art

[0002] With the development of display technology, more and more display screens are being installed in cars, including a control display screen installed on the middle armrest of the rear seat, which is used to facilitate passengers to adjust seats and air conditioning settings. The control display screen interacts with passengers for a long time, and passengers often put their hands on the display screen on the armrest. Therefore, the strength requirements of the control display screen are relatively high. Existing display screens are usually subjected to strength testing before leaving the factory. One of the testing methods is a ball drop test, which is to drop a test ball freely from a certain height to hit the surface of the display screen, so as to detect the strength and stability of the display screen when it is impacted. However, this testing method requires manual picking up and re-placing of the test ball after the impact, and it is not convenient to continuously test the screen, and the detection efficiency of the screen is slow. In addition, the detection conditions of this detection method are too single and cannot fit the actual use of the display screen, so that the detection result is too ideal, reducing the accuracy of the detection result. Summary of the invention

[0003] In order to overcome the disadvantages that with the increasing application of vehicle-mounted display screens, especially the control display screens on the rear armrests of vehicles, the display screen strength requirements are relatively high, but the existing ball drop test detection method is inefficient, requires manual repeated operations, and the detection conditions are single, which is difficult to simulate the diversity and complexity in actual use. This leads to inaccurate test results and cannot fully reflect the real performance of the display screen. The present invention provides a small display screen strength detection device.

[0004] The technical implementation scheme of the present invention is: a small display screen strength detection device, including a fixed frame; also including a hydraulic push rod, an electromagnet, a fixed ring, a sliding rod, a fixed column, a detection ball, a fixed plate and a moving component; a hydraulic push rod is installed on the fixed frame; an electromagnet is arranged on the telescopic end of the hydraulic push rod; a fixed ring is arranged on the fixed frame; a sliding rod is slidably connected to the fixed ring; a protrusion is arranged on the upper side of the sliding rod; the protrusion is arranged to be made of magnetic material; a fixed column is fixedly connected to the lower side of the sliding rod; a detection ball for detecting the strength of the display screen is connected in the fixed column; a moving component is arranged on the fixed frame; a fixed plate for placing the display screen is connected to the fixed frame; the fixed plate is driven to move forward and backward and left and right by the moving component; a number of limit blocks arranged in a rectangular shape are arranged on the fixed plate.

[0005] Furthermore, the moving component includes a first slide rail, a first electric slider, a second slide rail and a second electric slider; a plurality of first slide rails are fixedly connected to the fixed frame; a first electric slider is slidably connected to each first slide rail; a second slide rail is commonly fixedly connected to all the first electric sliders; a second electric slider is slidably connected to the second slide rail; and the second electric slider is fixedly connected to the fixed plate.

[0006] Furthermore, it also includes an airbag and a connecting tube; the detection ball is arranged to be slidably connected to the fixed column; an airbag is fixedly connected between the detection ball and the fixed column for simulating elastic materials with different elasticity levels to impact the display screen, and the direction of expansion and contraction of the airbag is set to the up and down direction; the airbag is connected to a connecting tube; the connecting tube passes through the sliding rod, and the connecting tube is connected to an external air pump device.

[0007] Furthermore, an air pressure sensor is arranged in the connecting pipe.

[0008] Furthermore, a water storage cavity for controlling the impact force on the display screen is opened in the fixed column; a water inlet is opened on the upper side of the fixed column, and the water inlet is connected to the water storage cavity; the water inlet is connected to an external water supply device.

[0009] Furthermore, a plurality of drainage holes for detecting the waterproof performance of the display screen are arranged at the bottom of the fixing column; each drainage hole is connected to the water storage cavity; and a valve is arranged at each drainage hole.

[0010] Furthermore, a pressure sensor is provided at the connection between the hydraulic push rod and the electromagnet.

[0011] Furthermore, it also includes an electric push rod; a plurality of electric push rods are fixedly connected to the second electric sliding block; and the plurality of electric push rods are movably connected to the fixed plate through spherical joints.

[0012] Furthermore, a plurality of electric push rods are evenly installed at the four end corners of the fixed plate.

[0013] Furthermore, it also includes a drain pipe; a drain pipe for draining accumulated water is arranged on the front side of the fixed plate; and the drain pipe is connected to an external collection device.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] Compared with conventional testing equipment, the hydraulic push rod moves up and down reciprocatingly, so that the testing ball hits the surface of the display screen reciprocatingly, thereby achieving continuous impact on the display screen, and there is no need to manually pick up the testing ball repeatedly, which improves the detection efficiency of the display screen. In addition, in this process, the fixed plate moves forward and backward and left and right continuously, so that the testing ball hits different positions such as the center and edge of the display screen, thereby testing the comprehensive impact resistance of the display screen at different force points, and improving the accuracy of the test results;

[0016] The hydraulic push rod drives the fixed column to move up and down reciprocatingly, so that the bottom of the fixed column hits the display screen, thereby simulating the surface contact impact of an object with a large contact area on the display screen, making the detection conditions more in line with the actual use scenario and improving the accuracy of strength detection;

[0017] The water in the water storage chamber is made to flow downward from the drainage hole to the surface of the display screen, and then the fixing column is controlled to fall downward to the surface of the display screen, so as to detect the waterproof performance of the display screen, so that the detection process is as close to the actual use as possible, and the accuracy of the detection result is improved;

[0018] The pressure resistance of the display screen is tested by continuously applying pressure to the display screen through a hydraulic push rod, without the need to use additional equipment to test the pressure resistance of the display screen, thereby improving the portability of the display screen strength test. In addition, the pressure applied by the hydraulic push rod to the display screen is detected by a pressure sensor provided at the connection between the hydraulic push rod and the electromagnet, thereby simulating the situation where different weight pressures are applied to the display screen, which is convenient for analyzing the effects of different pressures on the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the small display screen strength detection device of the present invention;

[0020] Figure 2 For the present invention Figure 1 A magnified image of point A;

[0021] Figure 3 For the present invention Figure 1 A magnified view of point B;

[0022] Figure 4 It is a cross-sectional view of the combination of the slide bar, the fixed column, the detection ball and the airbag of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing plate and the drainage pipe combination of the present invention.

[0024] In the above drawings: 1-fixed frame, 2-hydraulic push rod, 3-electromagnet, 4-fixed ring, 5-slide rod, 5001-bump, 6-fixed column, 6001-water storage chamber, 6002-water inlet, 6003-drain hole, 7-detection ball, 8-fixed plate, 8001-limit block, 9-display screen, 201-first slide rail, 202-first electric slider, 203-second slide rail, 204-second electric slider, 205-air bag, 206-connecting pipe, 301-electric push rod, 302-drain pipe. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0026] Example 1

[0027] like Figure 1-Figure 5 As shown, a small display screen strength detection device includes a fixing frame 1;

[0028] It also includes a hydraulic push rod 2, an electromagnet 3, a fixed ring 4, a sliding rod 5, a fixed column 6, a detection ball 7, a fixed plate 8 and a moving component; the hydraulic push rod 2 is installed on the fixed frame 1; the electromagnet 3 is arranged on the lower side of the telescopic end of the hydraulic push rod 2; a fixed ring 4 is arranged in the middle of the fixed frame 1; the sliding rod 5 is slidably connected to the fixed ring 4; a protrusion 5001 is arranged on the upper side of the sliding rod 5; the protrusion 5001 is arranged to adopt a magnetic material; a fixed column 6 is fixedly connected to the lower side of the sliding rod 5; a detection ball 7 is connected inside the fixed column 6; a moving component is arranged on the lower side of the fixed frame 1; a fixed plate 8 is connected to the fixed frame 1; the fixed plate 8 is driven to move forward and backward and left and right by the moving component; a number of limit blocks 8001 arranged in a rectangular shape are arranged on the fixed plate 8.

[0029] The moving assembly includes a first slide rail 201, a first electric slider 202, a second slide rail 203 and a second electric slider 204; two front-to-back symmetrical first slide rails 201 are fixedly connected to the fixed frame 1; each first slide rail 201 is slidably connected to a first electric slider 202; all the first electric sliders 202 are commonly fixedly connected to a second slide rail 203; the second slide rail 203 is slidably connected to a second electric slider 204; the second electric slider 204 is fixedly connected to the fixed plate 8.

[0030] It also includes an airbag 205 and a connecting tube 206; the detection ball 7 is set to be slidably connected to the fixed column 6; the airbag 205 is fixedly connected between the detection ball 7 and the fixed column 6, and the direction of expansion and contraction of the airbag 205 is set to the up and down direction; the airbag 205 is connected with a connecting tube 206; the connecting tube 206 passes through the sliding rod 5, and the connecting tube 206 is connected to the external air pump device.

[0031] Furthermore, in order to simulate the impact of the detection ball 7 with different elasticity levels on the display screen 9, an air pressure sensor is provided in the connecting pipe 206.

[0032] A water storage chamber 6001 is provided in the fixed column 6; a water inlet 6002 is provided on the upper side of the fixed column 6, and the water inlet 6002 is communicated with the water storage chamber 6001; the water inlet 6002 is communicated with an external water supply device.

[0033] A plurality of drainage holes 6003 arranged in a ring shape are provided at the bottom of the fixed column 6; each drainage hole 6003 is connected to the water storage chamber 6001; and a valve is provided at each drainage hole 6003.

[0034] Furthermore, in order to detect the pressure resistance of the display screen 9 without using additional devices and to improve the portability of the strength detection of the display screen 9 , a pressure sensor is provided at the connection between the hydraulic push rod 2 and the electromagnet 3 .

[0035] The following is a detailed description of the detection process of the display screen 9:

[0036] Since the display screen 9 needs to interact with the passengers for a long time, and during the use of the display screen 9, there are cases where some objects such as mobile phones and keys fall on the display screen 9. When these objects fall on the display screen 9, they will have an impact on the display screen 9 and easily damage the display screen 9. For this reason, the strength of the display screen 9 is required to be relatively high. When the display screen 9 is completed after production, its strength needs to be tested, and before the test, the following preparations are made. First, the hydraulic push rod 2 is controlled to drive the electromagnet 3 to move downward so that the electromagnet 3 contacts the protrusion 5001, and the electromagnet 3 is controlled to start working so that the electromagnet 3 generates magnetism. Since the protrusion 5001 is made of ferromagnetic material, the electromagnet 3 absorbs the protrusion 5001, and then the hydraulic push rod 2 is controlled to drive the electromagnet 3 to move downward so that the electromagnet 3 contacts the protrusion 5001. The electromagnet 3 moves upward, causing the slide bar 5 to move upward on the fixing ring 4, thereby driving the fixing column 6 and its connecting parts to move upward, and inflating the airbag 205 through the external air pump device to inflate the airbag 205, so that the detection ball 7 protrudes from the bottom of the fixing column 6. As the fixing column 6 drives the detection ball 7 to continue to move upward, until the detection ball 7 reaches the height required for detection, the hydraulic push rod 2 is controlled to stop moving, and then the display screen 9 is placed on the fixing plate 8, and the fixing plate 8 is fixed by the limit block 8001. At this time, the middle part of the fixing plate 8 is opposite to the center of the detection ball 7, so that the center of the display screen 9 is opposite to the center of the detection ball 7. In this way, the preparations required for the detection are completed, and then the strength of the display screen 9 is tested. First, the electromagnet 3 is controlled to move upward, causing the slide bar 5 to move upward, and then the slide bar 5 is opposite to the center of the detection ball 7. The magnet 3 stops working. At this time, the electromagnet 3 has no magnetism. Therefore, under the action of the deadweight of the slide bar 5, the protrusion 5001 is separated from the electromagnet 3, and the slide bar 5 and the detection ball 7 are allowed to fall freely until the detection ball 7 hits the center position of the display screen 9. Then the hydraulic push rod 2 is controlled to drive the electromagnet 3 to move downward again, so that the electromagnet 3 fits with the protrusion 5001, and the protrusion 5001 is sucked by the electromagnet 3. Then the hydraulic push rod 2 is controlled to move the detection ball 7 upward to the height required for detection. At the same time, the first electric slide 202 is controlled to move rightward on the first slide rail 201, thereby driving the second slide rail 203, the second electric slide 204, the fixed plate 8 and the display screen 9 to move rightward. At the same time, the second electric slide 204 is controlled to move rightward on the second slide rail 2 03 moves forward, so that the fixed plate 8 and the display screen 9 move forward synchronously, until the left front edge of the display screen 9 is aligned with the center of the detection ball 7, and then the electromagnet 3 is controlled to stop working, so that the detection ball 7 falls and hits the left front edge of the display screen 9, and so on. After the collision is completed, the surface of the display screen 9 is manually checked to see if it is intact and free of cracks, so as to judge whether the impact resistance of the display screen 9 meets the standard. Compared with conventional detection equipment, the hydraulic push rod 2 moves back and forth up and down, so that the detection ball 7 reciprocates and hits the surface of the display screen 9, thereby realizing continuous collision with the display screen 9, and there is no need to manually pick up the detection ball 7 repeatedly, thereby improving the detection efficiency of the display screen 9, and in this process, the fixed plate 8 is continuously moved back and forth and left and right,The detection ball 7 is made to hit different positions such as the center and edge of the display screen 9, so as to detect the comprehensive impact resistance of the display screen 9 at different force points, and improve the accuracy of the detection result. On this basis, when the external air pump device inflates the airbag 205, an air pressure sensor is arranged in the connecting pipe 206, so that the air pressure state in the airbag 205 can be detected by the air pressure sensor. When the air pressure in the airbag 205 is large, the elasticity of the airbag 205 is small. On the contrary, when the air pressure in the airbag 205 is small, the elasticity of the airbag 205 is large. Therefore, the elasticity of the airbag 205 can be adjusted by controlling the air pressure in the airbag 205, so that when the detection ball 7 hits the display screen 9, the detection ball 7 bounces up to different heights, thereby simulating the impact of the detection ball 7 with different elasticity on the display screen 9, so as to facilitate the analysis of the impact degree of different elastic materials on the display screen 9 and improve the authenticity of the strength detection result of the display screen 9.

[0037] In the process of using the detection ball 7 to perform strength detection on the display screen 9, it is usually only possible to simulate a single-point contact impact on the display screen 9, but it is impossible to simulate a surface contact impact on the display screen 9 caused by some objects with a larger contact area. Therefore, after the detection of the display screen 9 is completed by the detection ball 7, the connecting pipe 206 is evacuated by an external air pump device, so that the air in the airbag 205 is extracted, and the airbag 205 is in an upward contraction state, thereby driving the detection ball 7 to move upward and retracting the detection ball 7 into the fixed column 6. In this way, the fixed column 6 is driven by the hydraulic push rod 2 to move back and forth up and down, so that the bottom of the fixed column 6 hits the display screen 9, thereby simulating the surface contact impact on the display screen 9 caused by an object with a larger contact area, so that the detection conditions are more in line with the actual usage scenario, and the accuracy of the strength detection is improved.

[0038] On this basis, when the display screen 9 is subjected to single-point contact impact or surface contact impact detection, water is delivered to the water inlet 6002 through an external water supply device, so that the water flows into the water storage chamber 6001, thereby increasing the overall weight of the fixed column 6, and thereby increasing the force with which the fixed column 6 hits the display screen 9 or the detection ball 7 hits the display screen 9. Compared with conventional detection devices, without changing the size of the detection ball 7 or the size of the fixed column 6, it is only necessary to control the amount of water in the water storage chamber 6001 to achieve the impact of objects of different weights on the display screen 9, thereby improving the efficiency of the strength detection of the display screen 9 and the accuracy of the detection results.

[0039] Furthermore, water can be delivered into the water storage chamber 6001, and before the fixed column 6 moves downward to impact the display screen 9, the valve at the drainage hole 6003 can be controlled to open, so that the water in the water storage chamber 6001 flows downward from the drainage hole 6003, so that the water flows to the surface of the display screen 9, and then the fixed column 6 is controlled to fall downward to the surface of the display screen 9, so as to detect the waterproof performance of the display screen 9, so that the detection process is as close to the actual usage as possible, and the accuracy of the detection result is improved.

[0040] At the same time, the existing ball drop test detection device cannot apply continuous squeezing to the display screen 9, so the detection function of the conventional ball drop test detection device is limited. Therefore, when the display screen 9 needs to be squeezed continuously, the electromagnet 3 is first made to work continuously, so that the electromagnet 3 tightly absorbs the protrusion 5001, and then the hydraulic push rod 2 is controlled to drive the electromagnet 3 to move downward, thereby pushing the slide bar 5 to move downward in the fixed ring 4 until the detection ball 7 contacts the display screen 9, or the fixed column 6 contacts the display screen 9, thereby realizing continuous application of pressure to the display screen 9 by the hydraulic push rod 2, and then detecting the compressive performance of the display screen 9, without the need to use additional devices to detect the compressive performance of the display screen 9, thereby improving the portability of the strength detection of the display screen 9, and the pressure sensor provided at the connection between the hydraulic push rod 2 and the electromagnet 3 detects the pressure applied by the hydraulic push rod 2 to the display screen 9, thereby simulating the situation where different weight pressures are applied to the display screen 9, which is convenient for analyzing the effects of different pressures on the display screen 9 On this basis, when the display screen 9 is subjected to the heavy pressure of an object and the heavy object moves on the display screen 9, it will be subjected to vertical pressure and horizontal shear force. When the hydraulic push rod 2 continuously applies pressure to the display screen 9, the first electric slider 202 can be controlled to move on the first slide rail 201 or the second electric slider 204 can be controlled to move on the second slide rail 203, so that the display screen 9 moves horizontally during the continuous pressure process, thereby simulating the scene of an object pressing on the display screen 9 and sliding on the display screen 9, and then detecting the horizontal shear force resistance of the display screen 9, so that the detection conditions are more in line with actual use. At the same time, the accuracy of the detection results is improved by increasing the detection parameters of the display screen 9. On this basis, when the water in the water storage chamber 6001 flows to the surface of the display screen 9, the hydraulic push rod 2 can be controlled to continuously apply pressure to the display screen 9 and make the display screen 9 move horizontally synchronously, so as to detect the pressure resistance of the display screen 9 when it is subjected to sliding squeezing when there is water on the display screen 9.

[0041] Example 2

[0042] On the basis of Example 1, Figure 1 and Figure 5 As shown, an electric push rod 301 is also included; four electric push rods 301 arranged in a rectangular shape are fixedly connected to the second electric slider 204; the four electric push rods 301 are movably connected to the fixing plate 8 through spherical joints.

[0043] The four electric push rods 301 are evenly installed at the four end corners of the fixing plate 8 .

[0044] It also includes a drainage pipe 302; the drainage pipe 302 is arranged at the lower front part of the fixing plate 8; the drainage pipe 302 is connected to the external collection device.

[0045] When the display screen 9 is tested for its impact resistance, the test ball 7 usually falls vertically onto the display screen 9. However, during actual use of the display screen 9, the angle at which an object hits the display screen 9 when it falls is uncertain. Therefore, by controlling the different elongations of the four electric push rods 301, the adjustable fixed plate 8 is changed from a horizontal state to an inclined state. By adjusting the inclination of the display screen 9, the angle at which the test ball 7 hits the display screen 9 when it falls downward is changed, so that the test for impact resistance is more in line with the actual situation. Moreover, in the process of continuous extrusion test on the display screen 9, the inclination of the display screen 9 can also be adjusted to detect the pressure effects of pressures in different directions on the display screen 9, so that the test scene is more comprehensive and diversified. By arranging the four electric push rods 301 at the four end corners of the fixed plate 8, the four electric push rods 301 can better disperse the pressure on the fixed plate 8, especially when the fixed plate 8 is in an inclined state, so as to effectively maintain the stability of the fixed plate 8.

[0046] When the water in the water storage chamber 6001 is spilled onto the display screen 9, a small amount of water is likely to remain on the surface of the display screen 9, which makes it inconvenient for manual observation of the condition of the display screen 9. For this reason, after the detection ball 7 completes the collision, the electric push rod 301 located on the front side is controlled to contract, and the electric push rod 301 located on the rear side is extended, so that the fixed plate 8 and the display screen 9 are tilted to the front side, guiding the accumulated water on the display screen 9 to flow away along the inclined direction, thereby facilitating manual observation of the condition of the display screen 9, and then the waste water flows into the drain pipe 302 and is discharged to the external collection device.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A small display screen strength detection device, comprising a fixing frame (1); wherein: The invention also comprises a hydraulic push rod (2), an electromagnet (3), a fixing ring (4), a sliding rod (5), a fixing column (6), a detection ball (7), a fixing plate (8) and a moving assembly; the hydraulic push rod (2) is installed on the fixing frame (1); the electromagnet (3) is arranged on the telescopic end of the hydraulic push rod (2); the fixing ring (4) is arranged on the fixing frame (1); the sliding rod (5) is slidably connected to the fixing ring (4); a convex block (5001) is arranged on the upper side of the sliding rod (5); the convex block (5001) is arranged to adopt a magnetic material; the fixing column (6) is fixedly connected to the lower side of the sliding rod (5); the fixing column (6) is connected with a detection ball (7) for detecting the strength of the display screen (9); the fixing frame (1) is arranged with a moving assembly; the fixing frame (1) is connected with a fixing plate (8) for placing the display screen (9); the fixing plate (8) is driven to move forward and backward and left and right by the moving assembly; the fixing plate (8) is provided with a plurality of limiting blocks (8001) arranged in a rectangular shape.

2. A small display screen strength detection device according to claim 1, characterized in that: The moving assembly comprises a first slide rail (201), a first electric slider (202), a second slide rail (203) and a second electric slider (204); a plurality of first slide rails (201) are fixedly connected to the fixed frame (1); each first slide rail (201) is slidably connected to a first electric slider (202); a second slide rail (203) is commonly fixedly connected to all the first electric sliders (202); a second electric slider (204) is slidably connected to the second slide rail (203); and the second electric slider (204) is fixedly connected to the fixed plate (8).

3. A small display screen strength detection device according to claim 1, characterized in that: The device also comprises an air bag (205) and a connecting pipe (206); the detection ball (7) is arranged to be slidably connected to the fixed column (6); an air bag (205) is fixedly connected between the detection ball (7) and the fixed column (6) for simulating elastic materials with different elasticity levels to impact the display screen (9), and the direction of expansion and contraction of the air bag (205) is arranged to be the up and down direction; the air bag (205) is connected to the connecting pipe (206); the connecting pipe (206) passes through the sliding rod (5), and the connecting pipe (206) is connected to an external air pump device.

4. A small display screen strength detection device according to claim 3, characterized in that: An air pressure sensor is arranged in the connecting pipe (206).

5. A small display screen strength detection device according to claim 3, characterized in that: A water storage chamber (6001) for controlling the impact force on the display screen (9) is provided in the fixed column (6); a water inlet (6002) is provided on the upper side of the fixed column (6), and the water inlet (6002) is connected to the water storage chamber (6001); and the water inlet (6002) is connected to an external water supply device.

6. A small display screen strength detection device according to claim 5, characterized in that: A plurality of drainage holes (6003) for detecting the waterproof performance of the display screen (9) are arranged at the bottom of the fixed column (6); each drainage hole (6003) is connected to the water storage chamber (6001); and a valve is arranged at each drainage hole (6003).

7. A small display screen strength detection device according to claim 1, characterized in that: A pressure sensor is provided at the connection between the hydraulic push rod (2) and the electromagnet (3).

8. A small display screen strength detection device according to claim 2, characterized in that: It also includes an electric push rod (301); a plurality of electric push rods (301) are fixedly connected to the second electric slide block (204); A plurality of electric push rods (301) are movably connected to the fixing plate (8) via spherical joints.

9. A small display screen strength detection device according to claim 8, characterized in that: A plurality of electric push rods (301) are evenly mounted at the four end corners of the fixed plate (8).

10. A small display screen strength detection device according to claim 9, characterized in that: It also includes a drainage pipe (302); a drainage pipe (302) for draining accumulated water is arranged on the front side of the fixed plate (8); The drainage pipe (302) is connected to an external collection device.

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