An adjustable tubing air tightness test structure
By designing an adjustable pipeline airtightness testing structure, the problem of non-universality of existing tooling was solved, achieving tooling versatility and cost reduction, and improving testing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING HUIXIN AUTOMOTIVE THERMAL MANAGEMENT TECHNOLOGY CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-23
AI Technical Summary
The existing pipe airtightness testing fixtures are not universal, which means that different models need to be replaced with different fixtures, increasing manufacturing costs and affecting work efficiency.
Design an adjustable pipeline airtightness test structure, including a fixed plate, an adjusting plate and an adjusting screw. The relative distance between the fixed plate and the adjusting plate can be changed by adjusting the screw to adapt to tooling of different specifications. It can be connected to an air source through a connector to conduct airtightness tests.
The tooling is highly versatile and can adapt to a variety of products with different specifications, reducing the cost of changing tooling and improving testing efficiency.
Smart Images

Figure CN224398904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline airtightness, and specifically refers to an adjustable pipeline airtightness testing structure. Background Technology
[0002] For water and gas pipelines, vacuum chambers, etc., airtightness is an important indicator to ensure the normal operation of the equipment or to achieve good results. Especially when there are flammable, explosive, corrosive or toxic gases inside semiconductor equipment, good airtightness is a prerequisite for ensuring safety.
[0003] There are various methods for testing the airtightness of pipelines, including soap bubble method, ultrasonic method, thermal radiation method, halogen method, bubble method, etc. Among them, the bubble method is low in cost and safe, and is a commonly used airtightness testing method.
[0004] Existing tooling for pipeline airtightness testing is mostly a specialized structure, requiring different tooling for different models, which is costly to manufacture and easily leads to confusion, affecting work efficiency.
[0005] Therefore, the inventors conducted further research and developed an adjustable pipeline airtightness testing structure, which led to this invention. Utility Model Content
[0006] The purpose of this invention is to provide an adjustable pipeline airtightness testing structure that is highly versatile and efficient.
[0007] To achieve the above objectives, the technical solution of this utility model is as follows:
[0008] An adjustable pipeline airtightness testing structure, including
[0009] A fixed plate and an adjusting plate are arranged parallel to each other, and several adjusting screws are provided between the fixed plate and the adjusting plate. The relative distance between the fixed plate and the adjusting plate can be changed by adjusting the adjusting screws.
[0010] The fixed plate is equipped with several connectors, which are connected to the same gas source.
[0011] The connector is connected to the fixture to be tested, and the fixture to be tested is fixed by the adjusting plate.
[0012] The entire device is designed to be adjustable, allowing for testing of tooling of different specifications in different batches. Adjustments can be made to adapt the device by adjusting the adjustment plate.
[0013] Furthermore, lifting plates are provided on both sides of the fixed plate, and the two ends of the adjusting plate are set on the lifting plates.
[0014] The lifting plate is used to assist the adjustment plate in raising and lowering.
[0015] Furthermore, the adjustment plate has several grooves for embedding the tooling to be tested.
[0016] Connect the connector of the pipeline to be tested to the connector of the fixing plate. The groove is used to lock into the neck of the connector of the pipeline to be tested.
[0017] Furthermore, the gas source supplies gas to each bronchus through a main gas pipe, and the bronchus is connected to the joint of the fixed plate.
[0018] Furthermore, the opening of the groove is an open structure.
[0019] By adopting the above solution, this utility model has the following advantages compared with the prior art:
[0020] 1. High versatility: The adjustable size design allows the tooling to adapt to a variety of different product specifications, eliminating the need to design a separate fixing device for each product, which greatly improves the versatility and applicability of the tooling.
[0021] 2. Cost reduction: Since the tooling can be adapted to a variety of products, the cost of changing tooling due to changes in product specifications is reduced, thereby lowering the company's production costs. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of an embodiment of the present utility model;
[0023] Figure 2 yes Figure 1 Top view (without the fixture to be tested);
[0024] Label Explanation
[0025] Fixed plate 1, adjusting plate 2, groove 21, adjusting screw 3, connector 4, air pipe 5.
[0026] 6. Main air pipe, 7. Lifting plate, 8. Test fixture. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0028] like Figure 1 As shown, an adjustable pipeline airtightness test structure includes a fixed plate 1 and an adjusting plate 2. The fixed plate 1 and the adjusting plate 2 are arranged parallel to each other. Lifting plates 7 are arranged on both sides of the fixed plate 1, and the two ends of the adjusting plate 2 are arranged on the lifting plates 7, and the adjusting plate can move relative to the lifting plates. Four adjusting screws 3 are arranged between the fixed plate 1 and the adjusting plate 2, that is, the relative distance between the fixed plate 1 and the adjusting plate 2 can be changed by adjusting the screws 3.
[0029] Five tooling test positions are formed between the fixed plate 1 and the adjusting plate 2. Each tooling test position is provided with a connector 4 on the fixed plate 1. The lower part of the connector 4 is connected to the branch pipe 5. The branch pipe is connected to the same main air pipe 6, and air is supplied to each connector 4 through the same air source.
[0030] The connector 4 on the fixing plate 1 can be connected to the connector of the tooling to be tested, and the tooling to be tested can be fixed by the adjusting plate 2. The adjusting plate 2 is fixed by opening a groove 21 on it that corresponds to the test position of the tooling, and setting an open structure at the opening of the groove 21. The groove 21 can embed the tooling to be tested into it.
[0031] The working process is as follows: Install the test fixture 8 (products of the same batch have the same specifications) on each connector. Figure 1 (The different sizes of connectors are for illustrative purposes only); adjust the adjustment plate 2 to the appropriate position according to the product; turn on the air source, lock it, and then put it in water to test the airtightness.
[0032] Because the test requires immersion in water, the entire structure is made of stainless steel and can test 5 products at a time.
[0033] The above are merely specific embodiments of this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this utility model are for reference only and are not absolute limitations. Any non-substantial modifications made to this utility model shall be considered as infringing upon the protection scope of this utility model.
Claims
1. An adjustable tubing air tightness test structure, characterized by: include A fixed plate and an adjusting plate are arranged parallel to each other, and several adjusting screws are provided between the fixed plate and the adjusting plate. The relative distance between the fixed plate and the adjusting plate can be changed by adjusting the adjusting screws. The fixed plate is equipped with several connectors, which are connected to the same gas source. The connector is connected to the fixture to be tested, and the fixture to be tested is fixed by the adjusting plate.
2. An adjustable tube air tightness test structure according to claim 1, wherein: Lifting plates are installed on both sides of the fixed plate, and the two ends of the adjusting plate are installed on the lifting plates.
3. An adjustable tube leak test structure according to claim 1 or 2, wherein: The adjustment plate has several grooves for embedding the tooling to be tested.
4. An adjustable pipeline airtightness testing structure according to claim 1 or 2, characterized in that: The air source supplies air to each bronchus through a main air pipe, and the bronchus is connected to the joint of the fixed plate.
5. The adjustable pipeline airtightness testing structure according to claim 3, characterized in that: The opening of the groove is an open structure.