An underwater air tightness test tool

Abstract

The utility model discloses an underwater airtightness test frock, including test seat, the test seat is cylindrical, the test seat center is equipped with the mounting groove, the mounting groove side wall is in line with the coil outer wall, the test seat top is equipped with at least two screw holes, the screw hole is located the outside of mounting groove, the test seat one side is equipped with the air inlet, the air inlet is linked with the mounting groove bottom, the utility model discloses an underwater airtightness test frock adopts the test seat of center place is equipped with the mounting groove, and the structure is simple, and the coil dismounts rapidly, and the test seat of fixed coil is put into the water, fills after the air inlet, observes whether the bubble generates, can determine the airtightness of coil, and the operation is quick and convenient, and the detection efficiency is high.

Description

Technical Field

[0001] This utility model relates to coil measurement technology, specifically an underwater airtightness testing fixture. Background Technology

[0002] A coil typically refers to a loop of wire. The most common applications of coils include motors, inductors, transformers, and loop antennas.

[0003] Currently, more and more center-mounted coils are being used in underwater environments, so the sealing performance of the center-mounted coils needs to be tested. However, the sealing performance of coils on the market is generally tested using specialized equipment, which is cumbersome, has limited efficiency, and is costly, making it impossible to quickly and conveniently test the sealing performance of coils. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides an underwater airtightness testing fixture that is simple in structure, quick and convenient to operate, and has high testing efficiency.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: an underwater airtightness testing fixture, including a test base, the test base being cylindrical, a mounting groove being provided at the center of the test base, the side wall of the mounting groove being in contact with the outer wall of the coil, at least two screw holes being provided at the top of the test base, the screw holes being located outside the mounting groove, and an air inlet being provided on one side of the test base, the air inlet being connected to the bottom of the mounting groove.

[0006] Preferably, the mounting groove includes a limiting part and a sealing part, the sealing part is located above the limiting part, and the inner wall of the sealing part is provided with a sealing ring, the sealing ring sealing the gap between the inner wall of the sealing part and the outer wall of the coil.

[0007] Preferably, the air inlet is connected to the limiting part.

[0008] Preferably, the screw hole is threaded with a bolt, and the bolt engages with the screw hole to fix the coil to the test socket.

[0009] Preferably, the air inlet is provided with an air inlet connector.

[0010] In summary, this utility model achieves the following technical effects:

[0011] This utility model of underwater airtightness testing fixture uses a test base with a mounting groove in the center, which has a simple structure and allows for quick coil assembly and disassembly. The test base with the coil fixed is placed in water, and after being inflated through the air inlet, the airtightness of the coil can be determined by observing whether air bubbles are generated. The operation is quick and convenient, and the testing efficiency is high. Attached Figure Description

[0012] Figure 1This is a three-dimensional structural schematic diagram of the underwater airtightness testing fixture of this utility model;

[0013] Figure 2 This is a schematic diagram of the underwater airtightness testing fixture of this utility model;

[0014] Explanation of the markings on the attached drawings: 1. Test base; 2. Mounting groove; 21. Limiting part; 22. Sealing part; 3. Screw hole; 4. Air inlet. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings.

[0016] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] Example 1:

[0022] like Figure 1 As shown in Figure 2, an underwater airtightness testing fixture includes a test base 1, which is cylindrical. The test base 1 has a mounting groove 2 at its center. The side wall of the mounting groove 2 is in contact with the outer wall of the coil. The top of the test base 1 has at least two screw holes 3, which are located outside the mounting groove 2. The test base 1 has an air inlet 4 on one side, which is connected to the bottom of the mounting groove 2.

[0023] During testing, the coil is first fixed to the test base 1 with bolts, ensuring that the bottom of the coil is inserted into the mounting groove 2 and the gap is sealed by a sealing ring. Then, an external gas pressure vessel is connected to the air inlet 4. Next, the test base 1 with the coil fixed is placed in water, and the external gas pressure vessel inflates the mounting groove 2 through the air inlet 4. The tester can determine the airtightness of the coil by observing whether there are air bubbles in any part of the coil. Moreover, testing in water simulates the actual use environment of the product, resulting in better testing accuracy.

[0024] The underwater airtightness testing fixture of this embodiment uses a test base 1 with a mounting groove 2 at the center. It has a simple structure, the coil can be quickly assembled and disassembled, and the airtightness of the coil can be determined by placing the test base 1 with the coil fixed in the water and inflating it through the air inlet 4 and observing whether bubbles are generated. The operation is fast and convenient and the testing efficiency is high.

[0025] The mounting groove 2 includes a limiting part 21 and a sealing part 22. The sealing part 22 is located above the limiting part 21. A sealing ring is provided on the inner wall of the sealing part 22. The sealing ring seals the gap between the inner wall of the sealing part 22 and the outer wall of the coil. The cross-section of the mounting groove 2 is circular. The diameter of the limiting part 21 is smaller than the diameter of the sealing part 22, so that the mounting groove 2 forms a stepped structure. This allows the stepped structure to abut against the bottom of the coil. The sealing ring seals the gap between the inner wall of the sealing part 22 and the outer wall of the coil, preventing gas from leaking out from the gap between the test base 1 and the coil.

[0026] The air inlet 4 is connected to the limiting part 21.

[0027] The screw hole 3 is threaded with a bolt, which engages with the screw hole 3 to fix the coil to the test base 1. Since air needs to be filled from the air inlet 4, the air pressure inside the coil and the limiting part 21 increases. Therefore, the coil needs to be fixed to the test base 1 by the bolt to prevent the coil from being detached from the test base 1 due to gas impact.

[0028] The air inlet 4 is equipped with an air inlet connector; the air inlet connector facilitates the connection of an external gas pressure vessel or air compressor to the air inlet 4.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. An underwater airtightness testing fixture, characterized in that, The test base includes a cylindrical test base with a mounting groove at its center. The sidewall of the mounting groove is fitted to the outer wall of the coil. The top of the test base has at least two screw holes located outside the mounting groove. An air inlet is provided on one side of the test base and is connected to the bottom of the mounting groove.

2. The underwater airtightness testing fixture according to claim 1, characterized in that, The mounting groove includes a limiting part and a sealing part. The sealing part is located above the limiting part, and a sealing ring is provided on the inner wall of the sealing part. The sealing ring seals the gap between the inner wall of the sealing part and the outer wall of the coil.

3. The underwater airtightness testing fixture according to claim 2, characterized in that, The air inlet is connected to the limiting part.

4. The underwater airtightness testing fixture according to claim 1, characterized in that, The screw hole is threaded with a bolt, and the bolt engages with the screw hole to fix the coil to the test socket.

5. The underwater airtightness testing fixture according to claim 1, characterized in that, The air inlet is equipped with an air inlet connector.

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