Mobile phone rear shell wading detection jig

By designing a hydraulic rod and clamping plate structure inside the box, the problem of time-consuming and labor-intensive testing of existing mobile phone back cover testing fixtures is solved, achieving efficient and reliable testing results.

CN223796198UActive Publication Date: 2026-01-13DONGGUAN ZHENYU MOULD PLASTIC CO LTD
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Patent Information

Application Number
CN202520440549.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-01-13
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

Existing water immersion testing fixtures for mobile phone back covers are time-consuming and labor-intensive to use, and their applicability and practicality are limited, affecting testing efficiency.

Method used

A water immersion testing fixture for mobile phone back covers was designed, comprising a housing, testing components, a fixing block, a sliding block, a hydraulic rod, and a viewing window. The hydraulic rod drives the support block and connecting frame to automatically adjust the position of the placement frame, and the clamping plates and springs hold the mobile phone cover in place, ensuring the consistency and repeatability of the test.

Benefits of technology

It improves testing efficiency, ensures that the phone case does not move during testing, achieves consistency and repeatability of testing conditions, and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mobile phone rear shell wading detection, and discloses a mobile phone rear shell wading detection jig, which comprises a box body and a placing frame, the upper side of the box body is rotatably connected with a detection assembly, the detection assembly is used for detecting a mobile phone rear shell, four corners in the placing frame are fixedly connected with fixing blocks, and the fixing blocks are used for fixing the mobile phone rear shell. Fixing rods are fixedly connected to the sides, close to each other, of the two fixing blocks, springs are arranged on the two sides of the exterior of each fixing rod in a sleeving mode, sliding blocks are slidably connected to the exteriors of the fixing rods, limiting blocks are fixedly connected to the sides, away from each other, of the sliding blocks, and first connecting blocks are fixedly connected to the sides, close to each other, of the sliding blocks. According to the utility model, the mobile phone shell to be detected is clamped and limited, it is ensured that the mobile phone shell does not move in the testing process, the simulated mobile phone shell can be automatically placed at different positions in water, and the consistency and repeatability of testing conditions are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of water immersion testing technology for mobile phone back covers, and in particular to a water immersion testing fixture for mobile phone back covers. Background Technology

[0002] After mobile phones are manufactured and assembled, they generally need to undergo airtightness testing. If the airtightness is poor, water can easily enter the phone, damaging the internal circuitry and affecting its stability. Water immersion testing fixtures for mobile phone back covers are typically used to test whether the phone's back cover or outer casing is waterproof. These fixtures usually simulate various liquid conditions to ensure that the phone can resist water intrusion during actual use.

[0003] In the existing technology, a cavity is formed between the phone back cover and the fixture by using upper and lower molds, sealing rings, and clamping components of the testing fixture. Water is injected into the cavity until the liquid level covers the phone back cover. The airtightness of the phone back cover can be determined by observing whether water droplets overflow from the back cover through the observation window. The testing efficiency is very high. However, the existing technology is time-consuming and labor-intensive to use, and the applicability and practicality of the device are limited, which greatly affects the testing efficiency. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of existing technologies, such as being time-consuming and laborious to use, and having limited applicability and practicality, by proposing a water immersion detection fixture for mobile phone back covers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a water immersion testing fixture for mobile phone back covers, comprising a box and a placement frame. A testing component is rotatably connected to the upper side of the box. The testing component is used to test the back cover of the mobile phone. Fixed blocks are fixedly connected to the four corners inside the placement frame. Fixed rods are fixedly connected to the adjacent sides of two fixed blocks. Springs are sleeved on both outer sides of the fixed rods. Sliding blocks are slidably connected to the outer side of the fixed rods. Limit blocks are fixedly connected to the opposite side of the sliding blocks. A first connecting block is fixedly connected to the adjacent side of the sliding blocks. A support rod is rotatably connected to the first connecting block via a first connecting shaft. A second connecting block is rotatably connected to the support rod via a second connecting shaft. A clamping plate is fixedly connected to the adjacent side of the second connecting block.

[0006] As a further description of the above technical solution:

[0007] The detection assembly includes a cover plate rotatably connected to the upper side of the housing. A water inlet pipe is fixedly connected to the left side of the housing, and a plug is slidably connected inside the water inlet pipe. A drain pipe is fixedly connected to the right side of the housing, and a control valve is provided outside the drain pipe.

[0008] As a further description of the above technical solution:

[0009] A support plate is fixedly connected inside the box. Hydraulic rods are fixedly connected to both sides of the lower part of the support plate. A support block is fixedly connected to the output end of the hydraulic rod. An adjustment component is fixedly connected to the side of the support block that is close to the support block. The adjustment component is used to adjust the position of the placement frame.

[0010] As a further description of the above technical solution:

[0011] The adjustment assembly includes a connecting frame, which is fixedly connected to the side of the support block. A bearing plate is fixedly connected to the lower inner side of the connecting frame, and a placement frame is fixedly connected to the upper side of the bearing plate.

[0012] As a further description of the above technical solution:

[0013] Limiting grooves are provided on both sides of the inner side of the placement frame, and limiting blocks are slidably connected inside the limiting grooves.

[0014] As a further description of the above technical solution:

[0015] One end of each of the two springs is fixedly connected to the side of the fixed block that is close to each other, and the other end of each of the two springs is fixedly connected to the side of the sliding block that is far from each other.

[0016] As a further description of the above technical solution:

[0017] The two clamps are slidably connected inside the placement frame.

[0018] As a further description of the above technical solution:

[0019] A viewing window is provided on the front side of the box.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by placing the test phone case on one side close to the two clamping plates, the test phone case presses against the two clamping plates, driving the second connecting block, the second connecting shaft, the support rod, the first connecting shaft, the first connecting block, and the sliding block, so that the sliding block slides outside the fixed rod. The movement of the sliding block presses against the spring, thereby achieving clamping and limiting of the test phone case and ensuring that it will not move during the test.

[0022] 2. In this utility model, by activating the hydraulic rod, the support block, connecting frame and bearing plate are moved, which in turn moves the placement frame, thus enabling the simulated mobile phone case to be automatically placed in different positions in the water, ensuring the consistency and repeatability of the test conditions. Attached Figure Description

[0023] Figure 1 This is a perspective view of a water immersion testing fixture for a mobile phone back cover proposed in this utility model;

[0024] Figure 2 This is a partial structural schematic diagram of a water immersion testing fixture for mobile phone back covers proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the placement frame of a water immersion testing fixture for a mobile phone back cover, as proposed in this utility model.

[0026] Legend:

[0027] 1. Box body; 2. Cover plate; 3. Water inlet pipe; 4. Plug; 5. Drain pipe; 6. Control valve; 7. Viewing window; 8. Placement frame; 9. Fixing block; 10. Fixing rod; 11. Spring; 12. Sliding block; 13. First connecting block; 14. First connecting shaft; 15. Support rod; 16. Second connecting shaft; 17. Second connecting block; 18. Clamping plate; 19. Limiting block; 20. Limiting groove; 21. Support plate; 22. Hydraulic rod; 23. Support block; 24. Connecting frame; 25. Bearing plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1 , Figure 2 , Figure 3This utility model provides an embodiment of a water immersion testing fixture for mobile phone back covers, comprising a housing 1 and a placement frame 8. A testing component is rotatably connected to the upper side of the housing 1, and the testing component is used to test the mobile phone back cover. Fixing blocks 9 are fixedly connected to the four corners inside the placement frame 8. Fixing rods 10 are fixedly connected to the sides of two fixing blocks 9 that are close to each other. Springs 11 are sleeved on both sides of the outer surface of the fixing rods 10. Sliding blocks 12 are slidably connected to the outer surface of the fixing rods 10. Limiting blocks 19 are fixedly connected to the sides of the sliding blocks 12 that are far apart from each other. A first connecting block 13 is fixedly connected to one side. The first connecting block 13 is rotatably connected to a support rod 15 via a first connecting shaft 14. The support rod 15 is rotatably connected to a second connecting block 17 via a second connecting shaft 16. A clamping plate 18 is fixedly connected to the side of the second connecting block 17 that is close to it. The detection assembly includes a cover plate 2, which is rotatably connected to the upper side of the box body 1. A water inlet pipe 3 is fixedly connected to the left side of the box body 1. A plug 4 is slidably connected inside the water inlet pipe 3. A drain pipe 5 is fixedly connected to the right side of the box body 1. A control valve 6 is provided outside the drain pipe 5.

[0030] Pull out the stopper 4, introduce the detection liquid into the inlet pipe 3 and the housing 1, manually open the cover 2, and place the detection phone case on the side close to the two clamping plates 18. The detection phone case squeezes the two clamping plates 18, causing the second connecting block 17, the second connecting shaft 16, the support rod 15, the first connecting shaft 14, the first connecting block 13 and the sliding block 12 to slide outside the fixed rod 10. The movement of the sliding block 12 squeezes the spring 11, and at the same time, the movement of the sliding block 12 causes the limiting block 19 to slide inside the limiting groove 20, which plays a role in clamping and limiting the detection phone case.

[0031] Reference Figure 1 , Figure 2 The box 1 is fixedly connected to a support plate 21. Hydraulic rods 22 are fixedly connected to both sides of the lower part of the support plate 21. Support blocks 23 are fixedly connected to the output end of the hydraulic rods 22. An adjustment component is fixedly connected to the side of the support block 23 that is close to it. The adjustment component is used to adjust the position of the placement frame 8. The adjustment component includes a connecting frame 24. The connecting frame 24 is fixedly connected to the side of the support block 23 that is close to it. A bearing plate 25 is fixedly connected to the lower side of the inside of the connecting frame 24. The placement frame 8 is fixedly connected to the upper side of the bearing plate 25.

[0032] By activating the hydraulic rod 22, the support block 23, the connecting frame 24, and the bearing plate 25 are moved, which in turn moves the placement frame 8, thus enabling the simulated mobile phone case to be automatically placed in different positions in the water.

[0033] Reference Figure 1 , Figure 2 , Figure 3The placement frame 8 has limit grooves 20 on both sides inside, and limit blocks 19 are slidably connected inside the limit grooves 20; one end of the two springs 11 is fixedly connected to the side of the fixed block 9 that is close to each other, and the other end of the two springs 11 is fixedly connected to the side of the sliding block 12 that is far away from each other; two clamping plates 18 are slidably connected inside the placement frame 8; a viewing window 7 is provided on the front side of the box 1.

[0034] Limiting grooves 20 are provided on both sides of the inner side of the placement frame 8. Limiting blocks 19 are slidably connected inside the limiting grooves 20, which serves to support and limit the sliding block 12. One end of two springs 11 is fixedly connected to the side of the fixing block 9 that is close to each other, and the other end of the two springs 11 is fixedly connected to the side of the sliding block 12 that is far away from each other, which serves to support the sliding block 12. Two clamping plates 18 are slidably connected inside the placement frame 8, which serves to clamp and limit the phone case. A viewing window 7 is provided on the front side of the box 1, which facilitates observation of the inspection situation.

[0035] Working principle: When using this device, pull off the stopper 4, and let the test liquid enter the inlet pipe 3. The liquid then enters the housing 1 through the inlet pipe 3. Activating the hydraulic rod 22 moves the support block 23, which in turn moves the connecting frame 24, which in turn moves the bearing plate 25, and consequently the placement frame 8. This allows for the automatic placement of the simulated phone case in different positions within the water, ensuring consistent and repeatable test conditions. Manually opening the cover 2 allows the phone case to be placed on the adjacent side of the two clamping plates 18. The test phone case presses against the two clamping plates 18. The clamping plates 18, under pressure, cause the second connecting block 17 to move. The movement of the second connecting block 17 causes the support rod 15 connected to the second connecting shaft 16 to move. The movement of the support rod 15 causes the first connecting block 13 connected to the first connecting shaft 14 to move. The movement of the first connecting block 13 causes the sliding block 12 to slide outside the fixed rod 10. The movement of the sliding block 12 presses against the spring 11. At the same time, the movement of the sliding block 12 causes the limiting block 19 to slide inside the limiting groove 20, thereby clamping and limiting the test phone case to ensure that it does not move during the test.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water immersion testing fixture for mobile phone back covers, comprising a housing (1) and a placement frame (8), characterized in that: A detection component is rotatably connected to the upper side of the housing (1). The detection component is used to detect the back cover of the mobile phone. A fixing block (9) is fixedly connected to each of the four corners inside the placement frame (8). A fixing rod (10) is fixedly connected to the side of the two fixing blocks (9) that are close to each other. A spring (11) is sleeved on both sides of the outside of the fixing rod (10). A sliding block (12) is slidably connected to the outside of the fixing rod (10). A limit block (19) is fixedly connected to the side of the sliding block (12) that is far away from each other. A first connecting block (13) is fixedly connected to the side of the sliding block (12) that is close to each other. A support rod (15) is rotatably connected to the first connecting block (13) through a first connecting shaft (14). A second connecting block (17) is rotatably connected to the support rod (15) through a second connecting shaft (16). A clamp (18) is fixedly connected to the side of the second connecting block (17) that is close to each other.

2. The water immersion testing fixture for mobile phone back covers according to claim 1, characterized in that: The detection assembly includes a cover plate (2), which is rotatably connected to the upper side of the box (1). A water inlet pipe (3) is fixedly connected to the left side of the box (1). A plug (4) is slidably connected inside the water inlet pipe (3). A drain pipe (5) is fixedly connected to the right side of the box (1). A control valve (6) is provided outside the drain pipe (5).

3. The water immersion testing fixture for mobile phone back covers according to claim 1, characterized in that: The box (1) is fixedly connected to a support plate (21). Hydraulic rods (22) are fixedly connected to both sides of the lower part of the support plate (21). A support block (23) is fixedly connected to the output end of the hydraulic rod (22). An adjustment component is fixedly connected to the side of the support block (23) that is close to it. The adjustment component is used to adjust the position of the placement frame (8).

4. A water immersion testing fixture for mobile phone back covers according to claim 3, characterized in that: The adjustment assembly includes a connecting frame (24), which is fixedly connected to the side of the support block (23) that is close to it. A bearing plate (25) is fixedly connected to the lower inner side of the connecting frame (24), and a placement frame (8) is fixedly connected to the upper side of the bearing plate (25).

5. A water immersion testing fixture for mobile phone back covers according to claim 1, characterized in that: Limiting grooves (20) are provided on both sides of the inner side of the placement frame (8), and limiting blocks (19) are slidably connected inside the limiting grooves (20).

6. The water immersion testing fixture for mobile phone back covers according to claim 1, characterized in that: One end of each of the two springs (11) is fixedly connected to the side of the fixed block (9) that is close to each other, and the other end of each of the two springs (11) is fixedly connected to the side of the sliding block (12) that is far away from each other.

7. A water immersion testing fixture for mobile phone back covers according to claim 1, characterized in that: The two clamps (18) are slidably connected inside the placement frame (8).

8. A water immersion testing fixture for mobile phone back covers according to claim 1, characterized in that: A viewing window (7) is provided on the front side of the box (1).