Waterproof product leakage point detection device
By using a positioning base and an adjustable air pressure tubing system in the waterproof product testing device, the problem of inaccurate leak location in the prior art has been solved, achieving efficient and non-destructive leak detection.
Patent Information
- Application Number
- CN202521058306.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-05-27
AI Technical Summary
Existing waterproof product testing methods cannot accurately detect small leaks, and high-pressure testing may damage the sealing structure, resulting in inaccurate leak location or failure to detect leaks.
It employs a positioning base, a sealing silicone sheet, and an adjustable air tube system. By continuously adjusting the air pressure, the product under test is pressurized for detection, and the location of the leak is indicated by air bubbles.
It achieves high-accuracy location of leaks in waterproof products, avoids damage to the sealing structure caused by high-pressure impacts, and is simple and quick to operate.
Smart Images

Figure CN223925931U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of leak detection devices for waterproof products, and in particular to a leak detection device for waterproof products. Background Technology
[0002] In today's era of rapid technological advancement, electronic products have become an indispensable part of our daily lives. As people increasingly pursue a higher quality of life, the functionality and durability of electronic products have become a core focus for consumers. Among the many features, waterproofing is gradually becoming one of the essential characteristics for an increasing number of electronic products. Therefore, quickly locating the leak point in a waterproof product is crucial for detecting anomalies and improving quality.
[0003] The current testing method involves placing the product in a sealed cylinder for pressurization. The required cylinder pressure depends on the product's testing conditions, and the pressure holding time is also determined by the product. Gas will enter the product through a leak, increasing the internal pressure. After pressurization, the product is dropped into the incubation liquid at the bottom of the cylinder, and the cylinder is then depressurized. The resulting pressure difference between the depressurized cylinder and the product causes gas to escape from the leak point, producing bubbling. The location of the leak is then observed and confirmed.
[0004] However, the above methods have the following limitations in detection:
[0005] 1. Due to the limited internal volume and pressure capacity of the product, large leaks will bubble up quickly, making it difficult to observe the leak clearly. Small leaks, on the other hand, involve insufficient gas to trigger bubbling and thus fail to reveal the leak point.
[0006] 2. For products with minor leaks, high pressure is typically applied to induce bubbling, during which the high pressure impacts the waterproof interface. For example, when the waterproof interface is sealed with a silicone sealing ring, the high pressure impact may damage its original state or even cause the fault to disappear, making it impossible to further locate the leak. Summary of the Invention
[0007] The purpose of this invention is to overcome the shortcomings of the above-mentioned traditional technologies and provide a waterproof product leak detection device that is simple and quick to operate and has a high positioning accuracy.
[0008] The purpose of this utility model is achieved through the following technical measures: a leak detection device for waterproof products, including a positioning base, a positioning groove on the positioning base, a locking block above the positioning groove, a sealing silicone sheet between the locking block and the positioning base, and the two sides of the locking block being threadedly connected to the positioning base by locking bolts.
[0009] As a further improvement to the above technical solution:
[0010] The locking block has an air nozzle at its center.
[0011] The air nozzle is connected to an air tube.
[0012] The air tube is equipped with a rotary pressure gauge.
[0013] The thickness of the sealing silicone sheet is 2~3mm.
[0014] The width of the sealing silicone sheet is greater than the width of the groove opening on the positioning groove.
[0015] The air tube is connected to the air source.
[0016] Compared with existing technologies, the advantages of this invention, due to the adoption of the above technical solution, are as follows: During operation, the product to be tested is placed in the positioning groove, and the locking bolts are tightened. A seal is achieved between the product and the air inlet of the product's outer shell by tightening and pressurizing the sealing silicone sheet. Air is then introduced into the product through the air pipe and nozzle. The pressure gauge is adjustable, allowing for free and continuous control of the air pressure added to the product. When the product bubbles, the air pressure can be continuously adjusted from low to high to avoid high-pressure impacts. If the product has a leak, gas will escape from the leak point. Because the gas source is continuous, the leak point location in the incubation solution will produce continuous, uninterrupted bubbles, clearly indicating the leak location. The operation is simple and quick, with high positioning accuracy.
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a waterproof product leak detection device according to an embodiment of this utility model.
[0019] In the diagram, 1-positioning base, 2-positioning groove, 3-locking block, 4-sealing silicone sheet, 5-locking bolt, 6-air nozzle, 7-air pipe, 8-knob pressure gauge. Detailed Implementation
[0020] 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. Example
[0021] like Figure 1As shown, a leak detection device for waterproof products includes a positioning base 1 with a positioning groove 2. The positioning groove 2 is designed according to the shape of the product to be tested and is used to fix the product to be tested. A locking block 3 is provided above the positioning groove 2. A sealing silicone sheet 4 is provided between the locking block 3 and the positioning base 1. The thickness of the sealing silicone sheet 4 is 2~3mm, and the width of the sealing silicone sheet 4 is greater than the width of the groove opening on the positioning groove 2. The two sides of the locking block 3 are threadedly connected to the positioning base 1 by locking bolts 5. An air nozzle 6 is provided in the center of the locking block 3. The air nozzle 6 passes through the locking block 3 and is aligned with the air inlet of the outer shell of the product to be tested in the positioning groove 2. The air nozzle 6 is connected to an air pipe 7, and a knob pressure gauge 8 is provided on the air pipe 7. The air pipe 7 is connected to an air source.
[0022] During operation, place the product to be tested into the positioning slot 2, tighten the locking bolt 5, and seal the air inlet of the product's outer shell by tightening the pressure-sealing silicone sheet 4. Inflate the product through the air tube 7 and air nozzle 6. The pressure gauge 8 can be adjusted to freely and continuously control the air pressure added to the product. When the product bubbles, the air pressure can be continuously adjusted from low to high to avoid high pressure impact. If the product has a waterproof leak, the gas will be discharged from the leak point. Because the gas source is continuous, the leak point of the product placed in the incubation solution will produce continuous and uninterrupted bubbles to clearly indicate the leak location. The operation is simple and quick, and the positioning accuracy is high.
[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 leak detection device for waterproof products, characterized in that: It includes a positioning base (1), a positioning groove (2) is provided on the positioning base (1), a locking block (3) is provided above the positioning groove (2), a sealing silicone sheet (4) is provided between the locking block (3) and the positioning base (1), and the two sides of the locking block (3) are threadedly connected to the positioning base (1) by locking bolts (5).
2. The waterproof product leak detection device according to claim 1, characterized in that: The locking block (3) has an air nozzle (6) at its center.
3. The waterproof product leak detection device according to claim 2, characterized in that: The air nozzle (6) is connected to an air tube (7).
4. The waterproof product leak detection device according to claim 3, characterized in that: The air pipe (7) is equipped with a rotary pressure gauge (8).
5. A leak detection device for waterproof products according to any one of claims 1-4, characterized in that: The thickness of the sealing silicone sheet (4) is 2~3mm.
6. A leak detection device for waterproof products according to claim 5, characterized in that: The width of the sealing silicone sheet (4) is greater than the width of the groove opening on the positioning groove (2).
7. A leak detection device for waterproof products according to claim 3, characterized in that: The air pipe (7) is connected to the air source.