High-precision pressure detection device for mobile phone display screen production

Abstract

The utility model relates to the technical field of pressure detection devices, in particular to a high-precision pressure detection device for mobile phone display screen production, which comprises a table body and two rotating rods, the two rotating rods are respectively and rotatably connected to the inner side wall of the table body, a test box is rotatably connected between the two rotating rods in a damping manner, and the test box is connected with the table body in a damping manner. An adjusting mechanism is arranged in the test box, the adjusting mechanism comprises a concentric-square-shaped plate, a connecting rod, a first rack plate and a first gear, a limiting groove is formed in the inner side wall of the test box, and the concentric-square-shaped plate is connected into the limiting groove in a sliding mode. Through damping rotation connection between the rotating rod and the test box, the test box is kept immovable during testing, a sealed space is formed, splashing fragments are left in the test box, the test box is automatically driven to turn over after testing is completed, the fragments are automatically discharged, manual cleaning by personnel is not needed, and the testing efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of pressure detection device technology, and in particular to a high-precision pressure detection device for mobile phone display screen production. Background Technology

[0002] As living standards improve, people are becoming increasingly discerning about the quality of mobile phones. With the increasing prevalence of color screens in mobile phones, the material of the screen is becoming more and more important. During the use of a mobile phone, the screen is one of the components that suffer the most wear and tear. Therefore, during the production and processing of mobile phones, it is necessary to conduct pressure tests on the screen. Current technology usually uses a pressure sensor to apply a certain pressure to the screen and obtain the pressure value when the screen breaks.

[0003] On the testing platform, the phone is usually exposed. When the phone screen breaks, it produces glass shards. When conducting multiple consecutive tests, it is necessary to constantly clean up the flying shards before proceeding to the next test, which is time-consuming and laborious. Some shards will fly into corners that are difficult to observe, causing safety hazards. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: mobile phones are usually exposed on the test platform, and when the screen breaks, glass shards are generated. During multiple consecutive tests, it is necessary to continuously clean up the flying shards before the next test can be conducted, which is time-consuming and labor-intensive. Some shards will fly into corners that are difficult to observe, causing safety hazards. Therefore, this invention proposes a high-precision pressure testing device for mobile phone display production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-precision pressure testing device for mobile phone display production includes a platform and rotating rods. Two rotating rods are rotatably connected to the inner sidewall of the platform, and a test box is rotatably connected between the two rotating rods.

[0007] The test box is equipped with an adjustment mechanism, which includes a U-shaped plate, a connecting rod, a first rack plate, and a first gear. A limit groove is formed on the inner side wall of the test box. The U-shaped plate is slidably connected in the limit groove. The two connecting rods are rotatably connected to the inner side wall of the test box. Mounting grooves are formed at both ends of the U-shaped plate. The two first rack plates are fixedly connected to both ends of the U-shaped plate. The two first gears are fixedly connected to the outer surface of the connecting rods. The first gears mesh with the first rack plates.

[0008] Preferably, a mounting bracket is fixedly connected to the upper end face of the platform, and a hydraulic cylinder is fixedly connected to the lower end face of the mounting bracket.

[0009] Preferably, a push plate is fixedly connected to the telescopic end of the hydraulic cylinder, and a sealing plate is fixedly connected to the lower end face of the push plate.

[0010] Preferably, a second rack plate is fixedly connected to the side wall of the push plate, and a second gear is fixedly connected to the outer surface of the rotating rod near the second rack plate, with the second rack plate meshing with the second gear.

[0011] Preferably, a counterweight ring is fixedly connected to the upper end face of the U-shaped plate, the counterweight ring is slidably connected to the sealing plate, baffles are fixedly connected to the outer surfaces of the two connecting rods respectively, and a detection element is fixedly connected to the lower end face of the sealing plate.

[0012] Preferably, a torsion spring is fixedly connected between the test box and the platform, a return spring is fixedly connected between the U-shaped plate and the test box, a base plate is fixedly connected to the platform, and the test box is slidably connected to the base plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Through the cooperation of the second rack plate, rotating rod, base plate and other structures, the test box is kept stationary during the test by the damped rotation connection between the rotating rod and the test box, forming a sealed space to keep the splashed fragments inside the test box. After the test is completed, the test box is automatically rotated to automatically discharge the fragments, eliminating the need for manual cleaning and ensuring the efficiency of the test.

[0015] 2. Through the cooperation of structures such as sealing plates, U-shaped plates, and baffles, a sealed space is formed when the mobile phone screen is pressure tested, keeping the splashed screen fragments inside the test box. The baffle automatically closes when the test head is detached, and prevents fragments from splashing due to centrifugal force when the test box is flipped. The baffle opens at a small angle when the test box is flipped to its lowest point, allowing the fragments to fall along the gap of the baffle, ensuring the safety of the test personnel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the second rack plate structure of a high-precision pressure detection device for mobile phone display production proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the base plate structure of a high-precision pressure detection device for mobile phone display production proposed in this utility model.

[0018] Figure 3This is a schematic diagram of the first rack plate structure of a high-precision pressure detection device for mobile phone display production proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the baffle structure of a high-precision pressure detection device for mobile phone display production proposed in this utility model.

[0020] In the diagram: 1. Body, 2. Rotating rod, 3. Test box, 4. Recurve plate, 5. Connecting rod, 6. First rack plate, 7. First gear, 8. Mounting bracket, 9. Hydraulic cylinder, 10. Push plate, 11. Sealing plate, 12. Second rack plate, 13. Second gear, 14. Counterweight ring, 15. Baffle, 16. Detection piece, 17. Torsion spring, 18. Return spring, 19. Base plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0023] Reference Figures 1-4A high-precision pressure testing device for mobile phone display production includes a platform 1 and two rotating rods 2. Two rotating rods 2 are rotatably connected to the inner wall of the platform 1. A test box 3 is connected between the two rotating rods 2 with damping. The damping force is greater than the weight of the test box 3 and its internal components, sufficient to drive the test box 3 to rotate normally. (The test box 3 contains a clamp for fixing the mobile phone screen, which is existing technology and will not be described in detail here.) A torsion spring 17 is fixedly connected between the test box 3 and the platform 1. A base plate 19 is fixedly connected to the platform 1. The rotating rods 2 are positioned slightly away from the center of the test box 3 from the base plate 19, causing the center of gravity of the test box 3 to be biased towards the base plate 19. Therefore, when no external force is applied, the test box 3 will rotate downwards. The plate 19 moves and thus rests steadily on the base plate 19. The test box 3 is slidably connected to the base plate 19. The test box 3 is equipped with an adjustment mechanism, which includes a U-shaped plate 4, a connecting rod 5, a first rack plate 6, and a first gear 7. A limit groove is opened on the inner side wall of the test box 3. The U-shaped plate 4 is slidably connected in the limit groove. A return spring 18 is fixedly connected between the U-shaped plate 4 and the test box 3. The two connecting rods 5 are rotatably connected to the inner side wall of the test box 3. The U-shaped plate 4 has mounting grooves at both ends. The two first rack plates 6 are fixedly connected to both ends of the U-shaped plate 4. The two first gears 7 are fixedly connected to the outer surface of the connecting rod 5. The first gear 7 is meshed with the first rack plate 6.

[0024] A mounting bracket 8 is fixedly connected to the upper end face of the platform 1. A hydraulic cylinder 9 is fixedly connected to the lower end face of the mounting bracket 8. A push plate 10 is fixedly connected to the telescopic end of the hydraulic cylinder 9. A sealing plate 11 is fixedly connected to the lower end face of the push plate 10. A second rack plate 12 is fixedly connected to the side wall of the push plate 10. A second gear 13 is fixedly connected to the outer surface of the rotating rod 2 near the second rack plate 12. The second rack plate 12 and the second gear 13 are meshed together.

[0025] A counterweight ring 14 is fixedly connected to the upper end face of the U-shaped plate 4. The counterweight ring 14 is slidably connected to the sealing plate 11. Baffles 15 are fixedly connected to the outer surfaces of the two connecting rods 5 respectively. A detection element 16 is fixedly connected to the lower end face of the sealing plate 11. (The detection element 16 includes necessary testing components such as a push pin and a pressure sensor, which are all existing technologies and will not be described in detail here.)

[0026] In this invention, during use, the hydraulic cylinder 9 first drives the push plate 10 and the sealing plate 11 to move downwards. The push plate 10 then drives the second rack plate 12 to move downwards. The second rack plate 12, moving downwards, contacts the second gear 13, causing the second gear 13 to rotate clockwise. Since the test box 3 is limited by the base plate 19 and cannot rotate, the test box 3 remains stationary. As the push plate 10 moves downwards, the sealing plate 11 contacts the counterweight ring 14, causing the counterweight ring 14 to move downwards. The counterweight ring 14 then drives the return plate 4 to move downwards and compresses the return spring 18. The return plate 4 then drives the first rack plate 6 to move downwards, causing... The first gear 7 drives the connecting rod 5 and the baffle 15 to move downwards. The sealing plate 11 and the counterweight ring 14 enclose and seal the test box 3. As the pressure continues to decrease, the pin on the detection element 16 contacts the mobile phone screen, applying pressure to the screen until it breaks. The pressure sensor on the detection element 16 records the specific data. The broken screen fragments are blocked by the test box 3 and the sealing plate 11 and fall onto the inner wall along the inclined baffle 15. After the test is completed, the hydraulic cylinder 9 is activated to move upwards. The pressure of the sealing plate 11 on the counterweight ring 14 disappears. Under the elastic force of the return spring 18, the return plate 4 drives the first gear 5 to move downwards. The second rack plate 12 moves upward, the baffle 15 returns to its original position. As the hydraulic cylinder 9 continues to move upward, the first rack plate 6 contacts the first gear 7, causing the first gear 7 to rotate. The first gear 7 drives the rotating rod 2 to rotate counterclockwise and compresses the torsion spring 17. Due to the damping between the rotating rod 2 and the test box 3, the test box 3 follows the rotating rod 2 and rotates counterclockwise. As the test box 3 rotates, under the action of the counterweight ring 14, it drives the retaining plate 4 to move downward. The retaining plate 4 drives the first rack plate 6 and the first gear 7 to move, causing the baffle 15 to open towards the counterweight ring 14 and stretching the return spring 18. Glass shards slide along the baffle 15 toward its center. When the test box 3 rotates 180 degrees counterclockwise, the second rack plate 12 disengages from the second gear 13. At this time, the baffle 15 opens to its maximum, but the opening is still small. The baffle 15 prevents the test box 3 from being splashed with glass shards during rotation. The shards fall into the collection bucket along the gap between the two baffles 15. After the second rack plate 12 disengages from the second gear 13, the rotating rod 2 drives the test box 3 to reset under the action of the torsion spring 17. This prevents the screen shards from splashing and eliminates the need for manual cleaning of the screen shards, saving time and effort and ensuring safety.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-precision pressure testing device for mobile phone display screen production, comprising a platform (1) and a rotating rod (2), characterized in that, The two rotating rods (2) are respectively rotatably connected to the inner side wall of the platform (1), and a test box (3) is rotatably connected between the two rotating rods (2); The test box (3) is provided with an adjustment mechanism, which includes a U-shaped plate (4), a connecting rod (5), a first rack plate (6), and a first gear (7). A limiting groove is opened on the inner side wall of the test box (3). The U-shaped plate (4) is slidably connected in the limiting groove. The two connecting rods (5) are respectively rotatably connected to the inner side wall of the test box (3). The two ends of the U-shaped plate (4) are respectively provided with mounting grooves. The two first rack plates (6) are respectively fixedly connected to the two ends of the U-shaped plate (4). The two first gears (7) are respectively fixedly connected to the outer surface of the connecting rod (5). The first gear (7) meshes with the first rack plate (6).

2. The high-precision pressure detection device for mobile phone display screen production according to claim 1, characterized in that, The upper end face of the platform (1) is fixedly connected to a mounting bracket (8), and the lower end face of the mounting bracket (8) is fixedly connected to a hydraulic cylinder (9).

3. The high-precision pressure detection device for mobile phone display screen production according to claim 2, characterized in that, The extension end of the hydraulic cylinder (9) is fixedly connected to a push plate (10), and the lower end face of the push plate (10) is fixedly connected to a sealing plate (11).

4. The high-precision pressure detection device for mobile phone display screen production according to claim 3, characterized in that, A second rack plate (12) is fixedly connected to the side wall of the push plate (10), and a second gear (13) is fixedly connected to the outer surface of the rotating rod (2) near the second rack plate (12). The second rack plate (12) and the second gear (13) are meshed together.

5. A high-precision pressure detection device for mobile phone display screen production according to claim 3, characterized in that, A counterweight ring (14) is fixedly connected to the upper end face of the spiral plate (4), and the counterweight ring (14) is slidably connected to the sealing plate (11). Baffles (15) are fixedly connected to the outer surfaces of the two connecting rods (5), and a detection element (16) is fixedly connected to the lower end face of the sealing plate (11).

6. The high-precision pressure detection device for mobile phone display screen production according to claim 1, characterized in that, A torsion spring (17) is fixedly connected between the test box (3) and the platform (1), a return spring (18) is fixedly connected between the eccentric plate (4) and the test box (3), a base plate (19) is fixedly connected to the platform (1), and the test box (3) and the base plate (19) are slidably connected.

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