A high-efficiency water tightness detection device

CN224815869UActive Publication Date: 2026-09-29HENAN SIKAITE AUTOMOBILE PIPELINE
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Patent Information

Application Number
CN202522549516.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-01
Publication Date
2026-09-29
Estimated Expiration
2035-12-01

AI Technical Summary

Technical Problem

[0006]本实用新型提供一种高效水试气密检测装置,解决了传统水试气密检测装置刚性密封夹具适配差、密封不可靠影响检测效率与精确度的问题

Benefits of technology

[0023]本实用新型提供一种高效水试气密检测装置,为了提高汽车管路水试气密检测的效率和精度,在水试框的内部通过支架安装有调节组件,可以通过驱动结构为调节组件提供旋转驱动力,可以带动两个活动板相互靠近和相互远离,让三角定位环可以适用于不同长度的汽车管路,而三角定位环内表面通过多个伸缩部件和多个对接环安装多个气囊环,多个气囊环组成一个环形,可以将汽车管路夹紧在三角定位环的内部,通过供气设备、连接管和供气结构为多个气囊环供气,可以对不同直径的汽车管路进行夹紧密封,而两个密封套分别安装在第一安装环和第二安装环中,在汽车管路插入到密封套的内部配合夹紧的两个三角定位环可以将汽车管路和密封套内部贴合,增加密封性,通过该设计可以根据需求为不同尺寸的汽车管路进行水试气密检测,并且在检测完成后,只需要让气囊环和活动板复位,就可以解除对汽车管路的限制,方便汽车管路检测时的拆装,有利于提高检测效率。

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Abstract

The utility model provides a kind of high-efficient water test air-tightness detection device.The high-efficient water test air-tightness detection device includes: the detection platform is fixedly connected at the top of mounting chassis, the top of the detection platform is equipped with water test frame, the bottom of the inner wall of water test frame is equipped with adjusting assembly by support, one end of the adjusting assembly is equipped with driving structure, the front of the adjusting assembly is equipped with two movable plates, the front of two movable plates is equipped with connecting rod, the front of connecting rod is equipped with triangular positioning ring.The high-efficient water test air-tightness detection device provided by the utility model can perform water test air-tightness detection on automobile pipelines of different sizes according to requirements through the design, and after detection is completed, only need to reset airbag ring and movable plate, the restriction on automobile pipeline can be removed, which facilitates disassembly and assembly during automobile pipeline detection and helps to improve detection efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of automotive pipeline air tightness testing technology, and in particular to a high-efficiency water-based air tightness testing device. Background Technology

[0002] Automotive pipeline air tightness testing is a specialized testing method for the sealing of various pipelines in automobiles, such as fuel, brake, and cooling systems. During the test, both ends of the pipeline are sealed, and gas at a set pressure is introduced into the pipeline. Pressure changes are monitored using a pressure sensor, or by using soapy water or other methods to observe for leaks. This method can accurately identify potential pipeline leaks and is a crucial process in automobile production and maintenance to ensure the stable operation of pipeline systems and prevent safety accidents.

[0003] Water-based air tightness testing of automotive pipelines is an intuitive physical method for testing air tightness. It is commonly used to detect leaks in sealed components such as pipes, containers, and valves. By observing whether bubbles are generated in the water and the size and frequency of the bubbles, the sealing condition of the workpiece can be judged. This method is simple to operate, low in cost, and can quickly locate the leak point. It is widely used in the factory inspection of workpieces with high sealing performance requirements in industrial production. Its core function is to ensure that the workpiece will not cause safety hazards or performance failures due to leaks during subsequent use.

[0004] Traditional water-based air tightness testing devices often use fixed-size rigid clamps for sealing. This requires frequent replacement of the sealing mold for different specifications of workpieces, which seriously affects testing efficiency. At the same time, the sealing reliability is insufficient, and the rigid contact is prone to seal failure due to minor defects on the workpiece surface or clamping deviation, affecting the accuracy of air tightness testing.

[0005] Therefore, it is necessary to provide a high-efficiency water-based airtightness testing device to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a high-efficiency water-based air tightness testing device, which solves the problems of poor fit of rigid sealing fixtures and unreliable sealing in traditional water-based air tightness testing devices, thus affecting testing efficiency and accuracy.

[0007] To solve the above-mentioned technical problems, the high-efficiency water-test airtightness detection device provided by this utility model includes: a mounting base;

[0008] A testing platform is fixedly connected to the top of a mounting base. A water test frame is mounted on the top of the testing platform. An adjustment component is mounted on the bottom of the inner wall of the water test frame via a bracket. A drive structure is mounted on one end of the adjustment component. Two movable plates are mounted on the front of the adjustment component. A connecting rod is mounted on the front of each of the two movable plates. A triangular positioning ring is mounted on the front of each connecting rod. Multiple telescopic components are mounted on the outer surface of the triangular positioning ring. A docking ring is mounted on the telescopic end of each telescopic component via a second pressure monitoring component. An airbag ring is mounted on the inner surface of each docking ring. A first mounting ring is mounted on one side of one of the triangular positioning rings. A first sealing cap is mounted on the other end of the first mounting ring. A first valve is mounted on the other end of the first sealing cap via a first pressure monitoring component. A second mounting ring is mounted on one side of another triangular positioning ring. A second sealing disc is mounted on the other end of the second mounting ring. A quick connector is mounted on the other end of the second sealing disc via a second valve. Sealing sleeves are mounted inside both the first and second mounting rings.

[0009] A booster device is installed on the top of the testing platform near one side. Two air supply devices are installed on the top of the support. Each air supply device has a connecting pipe at its outlet, and the other end of each connecting pipe has an air supply structure.

[0010] The quick-connector and the pressurization equipment are connected by a pipe. The air supply structure includes a ring pipe and a connecting hose. The other end of the connecting hose is connected to the airbag ring. During the testing process, the vehicle's pipeline needs to be immersed in the water inside the water test frame.

[0011] Preferably, a control box with a door is installed on the top of the mounting base, and an operation panel is installed on the front of the testing platform;

[0012] The control panel allows you to set the operating parameters of the equipment, and the door is equipped with a lock.

[0013] Preferably, the mounting base includes a base plate, a mounting structure, and an adjustment structure, wherein the mounting structure is used to mount the adjustment structure to the bottom of the base plate;

[0014] The threaded connection of the mounting and adjusting structure allows for adjustment of the stability of the base plate as needed.

[0015] Preferably, an auxiliary component is mounted on top of the adjustment component. The auxiliary component includes an auxiliary frame and a monitoring component, and the auxiliary frame is used to mount the monitoring component.

[0016] Preferably, the adjustment assembly includes an adjustment frame, a slide bar, a bidirectional adjustment screw, and an internal threaded bracket. The slide bar and the bidirectional adjustment screw are installed inside the adjustment frame, and the internal threaded bracket is installed on the outer surface of the slide bar and the bidirectional adjustment screw.

[0017] The internal threaded bracket and slide bar are slidably connected.

[0018] Preferably, a mounting frame is installed on the back of the inner wall of the water test frame 15, and a support ring is installed at the other end of the mounting frame via a lifting assembly;

[0019] The mounting bracket is located below the adjustment assembly, and the lifting assembly can adjust the height of the support ring.

[0020] Preferably, the lifting assembly includes a fixed plate, a stabilizer bar, and an adjusting screw, wherein the fixed plate is used to install the stabilizer bar and the adjusting screw at the bottom of the fixed plate;

[0021] The other end of the stabilizer bar and adjusting screw passes through the bottom and top of the fixed plate.

[0022] Compared with related technologies, the high-efficiency water-test airtightness detection device provided by this utility model has the following beneficial effects:

[0023] This invention provides a high-efficiency water-based airtightness testing device. To improve the efficiency and accuracy of water-based airtightness testing of automotive pipelines, an adjustment component is installed inside the water-based testing frame via a bracket. A drive structure provides rotational driving force to the adjustment component, causing two movable plates to move closer and further apart. This allows the triangular positioning ring to be adapted to automotive pipelines of different lengths. Multiple airbag rings are installed on the inner surface of the triangular positioning ring via multiple telescopic components and multiple docking rings. These airbag rings form a ring that clamps the automotive pipeline inside the triangular positioning ring. Air is supplied to the multiple airbag rings through an air supply device, connecting pipe, and air supply structure, enabling clamping and sealing of automotive pipelines of different diameters. Two sealing sleeves are respectively installed in the first and second mounting rings. When the automotive pipeline is inserted into the sealing sleeve and clamped by the two triangular positioning rings, the automotive pipeline and the inside of the sealing sleeve are closely fitted, increasing the sealing performance. This design allows for water-based airtightness testing of automotive pipelines of different sizes as needed. After testing, simply resetting the airbag rings and movable plates releases the restriction on the automotive pipeline, facilitating disassembly and assembly during testing and improving testing efficiency. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of the first embodiment of the high-efficiency water-test airtightness detection device provided by this utility model;

[0025] Figure 2 A structural diagram illustrating the installation structure of this utility model is provided.

[0026] Figure 3 Provided for this utility model Figure 1 An enlarged view of point A shown;

[0027] Figure 4Provided for this utility model Figure 2 A magnified view of point B shown;

[0028] Figure 5 A schematic diagram of the structure of the second embodiment of the high-efficiency water-test airtightness detection device provided by this utility model;

[0029] Figure 6 Provided for this utility model Figure 5 A magnified view of point C shown.

[0030] Numbered components in the diagram: 1. Mounting base; 101. Base plate; 102. Mounting structure; 103. Adjustment structure; 2. Control box; 3. Box door; 4. Testing platform; 5. Drive structure; 6. Adjustment assembly; 601. Adjustment frame; 602. Slide rod; 603. Bidirectional adjusting screw; 604. Internal thread frame; 7. Gas supply equipment; 8. Bracket; 9. Auxiliary components; 901. Auxiliary frame; 902. Monitoring components; 10. Connecting pipe; 11. Movable plate; 12. Triangular positioning ring; 13. Connecting rod; 14. Pressurization equipment; 15. 16. Water test frame; 17. Operation panel; 18. First mounting ring; 19. First sealing disc; 20. First valve; 21. First pressure monitoring component; 22. Second mounting ring; 23. Sealing sleeve; 24. Support ring; 25. Second sealing disc; 26. Quick connector; 27. Second valve; 28. Telescopic component; 29. ​​Second pressure monitoring component; 30. Connecting ring; 31. Air supply structure; 32. Airbag ring; 33. Mounting bracket; 34. Lifting assembly; 35. Fixing plate; 36. Stabilizing rod; 37. Adjusting screw. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] First Embodiment

[0033] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic diagram of the structure of the first embodiment of the high-efficiency water-test airtightness detection device provided by this utility model; Figure 2 A structural diagram illustrating the installation structure of this utility model is provided. Figure 3 Provided for this utility model Figure 1 An enlarged view of point A shown; Figure 4 Provided for this utility model Figure 2 A magnified view of point B shown. The high-efficiency water-based airtightness testing device includes: mounting base 1;

[0034] A testing platform 4 is fixedly connected to the top of the mounting base 1. A water test frame 15 is mounted on the top of the testing platform 4. An adjustment component 6 is mounted on the bottom of the inner wall of the water test frame 15 via a bracket 8. A drive structure 5 is mounted on one end of the adjustment component 6. Two movable plates 11 are mounted on the front of the adjustment component 6. A connecting rod 13 is mounted on the front of each of the two movable plates 11. A triangular positioning ring 12 is mounted on the front of each connecting rod 13. Multiple telescopic components 27 are mounted on the outer surface of the triangular positioning ring 12. The telescopic ends of each telescopic component 27 are connected to a docking ring 29 via a second pressure monitoring component 28. An airbag ring 31 is installed on the inner surface of the docking ring 29. A first mounting ring 17 is installed on one side of one of the triangular positioning rings 12. A first sealing cap 18 is installed on the other end of the first mounting ring 17. A first valve 19 is installed on the other end of the first sealing cap 18 through a first pressure monitoring component 20. A second mounting ring 21 is installed on one side of the other triangular positioning ring 12. A second sealing disc 24 is installed on the other end of the second mounting ring 21. A quick connector 25 is installed on the other end of the second sealing disc 24 through a second valve 26. A sealing sleeve 22 is installed inside both the first mounting ring 17 and the second mounting ring 21.

[0035] A booster device 14 is installed on the top of the test bench 4 near one side. Two air supply devices 7 are installed on the top of the bracket 8. Each outlet of the air supply device 7 is equipped with a connecting pipe 10, and the other end of each connecting pipe 10 is equipped with an air supply structure 30.

[0036] The quick connector 25 and the pressurizing device 14 are connected by a pipe. The air supply structure 30 includes a ring pipe and a connecting hose. The other end of the connecting hose is connected to the airbag ring 31. The pressurizing device 14 can pressurize the vehicle pipeline. One end of the sealing cap has a hole to facilitate the airflow in and out. The air supply device 7 can supply air to the airbag ring 31.

[0037] Please refer to Figure 1 The top of the mounting base 1 is equipped with a control box 2 with a door 3, and the front of the testing platform 4 is equipped with an operation panel 16.

[0038] The operation panel 16 can set the operating parameters of the equipment. The door 3 is equipped with a lock. The control box 2 can be equipped with a power switch and a controller for the operation of auxiliary equipment.

[0039] Please refer to Figure 1 and Figure 2 The mounting base 1 includes a base plate 101, a mounting structure 102, and an adjustment structure 103. The mounting structure 102 is used to mount the adjustment structure 103 to the bottom of the base plate 101.

[0040] The threaded connection between the mounting structure 102 and the adjusting structure 103 allows for adjustment of the stability of the base plate 101 as needed.

[0041] Please refer to Figure 1 and Figure 2 An auxiliary component 9 is mounted on the top of the adjustment component 6. The auxiliary component 9 includes an auxiliary frame 901 and a monitoring component 902. The auxiliary frame 901 is used to mount the monitoring component 902.

[0042] The monitoring component 902 can record the detection process.

[0043] Please refer to Figure 2 and Figure 4 The adjustment assembly 6 includes an adjustment frame 601, a slide rod 602, a bidirectional adjustment screw 603, and an internal threaded bracket 604. The slide rod 602 and the bidirectional adjustment screw 603 are installed inside the adjustment frame 601, and the internal threaded bracket 604 is installed on the outer surface of the slide rod 602 and the bidirectional adjustment screw 603.

[0044] The internal threaded bracket 604 and the slide rod 602 are slidably connected, and the internal threaded bracket 604 is threadedly connected to the bidirectional adjusting screw 603. A movable plate 11 is installed on the front of the internal threaded bracket 604.

[0045] The working principle of the high-efficiency water-test airtightness detection device provided by this utility model is as follows:

[0046] An adjustment component 6 is installed inside the water test frame 15 via a bracket 8. The adjustment component 6 is driven by a drive structure 5, which allows the two movable plates 11 to move closer and further apart, making the triangular positioning ring 12 suitable for automotive pipelines of different lengths. Multiple airbag rings 31 are installed on the inner surface of the triangular positioning ring 12 via multiple telescopic components 27 and multiple docking rings 29. These airbag rings 31 form a ring that clamps the automotive pipeline inside the triangular positioning ring 12. Air is supplied to the multiple airbag rings 31 via an air supply device 7, connecting pipe 10, and air supply structure 30, allowing for the clamping and sealing of automotive pipelines of different diameters. Two sealing sleeves 22 are respectively installed in the first mounting ring 17 and the second mounting ring 21. When the automotive pipeline is inserted into the sealing sleeve 22 and the two clamping triangular positioning rings 12 are engaged, the automotive pipeline and the inside of the sealing sleeve 22 are closely fitted, increasing... To improve sealing, in actual use, first pour an appropriate amount of water into the water test frame 15, then place the car water pipe to be tested on the front of the adjustment component 6. Then, activate the drive structure 5 to move the two triangular positioning rings 12 closer together, and insert both ends of the car pipe into the sealing sleeves 22 in the first mounting ring 17 and the second mounting ring 21. At the same time, the telescopic component 27 is activated to clamp the outer surface of the car pipe through multiple airbag rings 31. If the size is insufficient, the air supply device 7 can be activated to supply air to the airbag rings 31 to change the inner diameter, which can clamp the car pipe and increase the sealing. After completion, the pressurization device 14 can be activated to pressurize the sealed car pipe. At the same time, the first pressure monitoring component 20 monitors whether there is sufficient pressure inside the car pipe. When the pressure reaches the corresponding value, the second valve 26 is closed, and it can be observed whether the liquid inside the water test frame 15 is bubbling, thereby determining whether the car pipe is leaking.

[0047] Compared with related technologies, the high-efficiency water-test airtightness detection device provided by this utility model has the following beneficial effects:

[0048] To improve the efficiency and accuracy of water tightness testing for automotive pipelines, an adjustment component 6 is installed inside the water test frame 15 via a bracket 8. The adjustment component 6 is driven by a drive structure 5, which allows the two movable plates 11 to move closer and further apart, making the triangular positioning ring 12 adaptable to automotive pipelines of different lengths. Multiple airbag rings 31 are installed on the inner surface of the triangular positioning ring 12 via multiple telescopic components 27 and multiple docking rings 29. These airbag rings 31 form a ring that clamps the automotive pipeline inside the triangular positioning ring 12. The air supply device 7, connecting pipe 10, and air supply structure 30 provide air tightness testing. Multiple airbag rings 31 supply air and can clamp and seal automotive pipelines of different diameters. Two sealing sleeves 22 are respectively installed in the first mounting ring 17 and the second mounting ring 21. When the automotive pipeline is inserted into the sealing sleeve 22, the two triangular positioning rings 12 clamp it in place, which can fit the automotive pipeline and the inside of the sealing sleeve 22 to increase the sealing performance. This design allows for water-based air tightness testing of automotive pipelines of different sizes as needed. After the test is completed, simply resetting the airbag rings 31 and the movable plate 11 can release the restriction on the automotive pipeline, facilitating disassembly and assembly during automotive pipeline testing and improving testing efficiency.

[0049] Second Embodiment

[0050] Please refer to the following: Figures 5-6 , Figure 5 A schematic diagram of the structure of the second embodiment of the high-efficiency water-test airtightness detection device provided by this utility model; Figure 6 Provided for this utility model Figure 5 The enlarged view at point C shows an efficient water-testing airtightness detection device based on the first embodiment of this application. The second embodiment of this application proposes another efficient water-testing airtightness detection device. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the independent implementation of the first embodiment.

[0051] Specifically, the difference between the high-efficiency water-tested airtightness detection device provided in the second embodiment of this application and the following is noted: Figure 5 In the case of the solid 6, an installation frame 32 is installed on the back of the inner wall of the water test frame 15, and a support ring 23 is installed on the other end of the installation frame 32 through the lifting component 33;

[0052] The mounting bracket 32 ​​is located below the adjustment assembly 6, and the lifting assembly 33 can adjust the height of the support ring 23.

[0053] Please refer to Figure 5 According to the above, the lifting assembly 33 includes a fixed plate 331, a stabilizing rod 332 and an adjusting screw 333. The fixed plate 331 is used to install the stabilizing rod 332 and the adjusting screw 333 on the bottom of the fixed plate 331.

[0054] The other ends of the stabilizer bar 332 and the adjusting screw 333 pass through the bottom and top of the fixed plate 331. The top end of the stabilizer bar 332 is connected to the bottom of the support ring 23, and the top end of the adjusting screw 333 is rotatably connected to the bottom of the support ring 23.

[0055] Compared with related technologies, the high-efficiency water-test airtightness detection device provided by this utility model has the following beneficial effects:

[0056] To facilitate the centering of automotive pipelines, a support ring 23 is installed on the top of the mounting bracket 32 ​​via a lifting assembly 33. The height of the support ring 23 can be adjusted by moving the lifting assembly 33 up and down, allowing the automotive pipeline to be centered on the front of the lifting assembly 33. This allows the triangular positioning ring 12 to be accurately inserted into the mounting ring. This design facilitates the positioning of automotive pipelines and helps improve the efficiency of automotive pipeline testing.

[0057] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-efficiency water-based airtightness testing device, characterized in that, include: Install the base frame; A testing platform is fixedly connected to the top of a mounting base. A water test frame is mounted on the top of the testing platform. An adjustment component is mounted on the bottom of the inner wall of the water test frame via a bracket. A drive structure is mounted on one end of the adjustment component. Two movable plates are mounted on the front of the adjustment component. A connecting rod is mounted on the front of each of the two movable plates. A triangular positioning ring is mounted on the front of each connecting rod. Multiple telescopic components are mounted on the outer surface of the triangular positioning ring. A docking ring is mounted on the telescopic end of each telescopic component via a second pressure monitoring component. An airbag ring is mounted on the inner surface of each docking ring. A first mounting ring is mounted on one side of one of the triangular positioning rings. A first sealing cap is mounted on the other end of the first mounting ring. A first valve is mounted on the other end of the first sealing cap via a first pressure monitoring component. A second mounting ring is mounted on one side of another triangular positioning ring. A second sealing disc is mounted on the other end of the second mounting ring. A quick connector is mounted on the other end of the second sealing disc via a second valve. Sealing sleeves are mounted inside both the first and second mounting rings. A booster device is installed on the top of the testing platform near one side. Two air supply devices are installed on the top of the support. Each air supply device has a connecting pipe at its outlet, and the other end of each connecting pipe has an air supply structure.

2. The high-efficiency water-based airtightness testing device according to claim 1, characterized in that, A control box with a door is mounted on the top of the mounting base, and an operation panel is mounted on the front of the testing platform.

3. The high-efficiency water-based airtightness testing device according to claim 1, characterized in that, The mounting base includes a base plate, a mounting structure, and an adjustment structure. The mounting structure is used to mount the adjustment structure to the bottom of the base plate.

4. The high-efficiency water-based airtightness testing device according to claim 1, characterized in that, An auxiliary component is mounted on top of the adjustment assembly. The auxiliary component includes an auxiliary frame and a monitoring component. The auxiliary frame is used to mount the monitoring component.

5. The high-efficiency water-based airtightness testing device according to claim 1, characterized in that, The adjustment assembly includes an adjustment frame, a slide bar, a bidirectional adjustment screw, and an internal threaded bracket. The slide bar and the bidirectional adjustment screw are installed inside the adjustment frame, and the internal threaded bracket is installed on the outer surface of the slide bar and the bidirectional adjustment screw.

6. The high-efficiency water-tested airtightness detection device according to claim 1, characterized in that, A bracket is installed on the back of the inner wall of the water test frame, and a support ring is installed on the other end of the bracket via a lifting assembly.

7. The high-efficiency water-tested airtightness detection device according to claim 6, characterized in that, The lifting assembly includes a fixed plate, a stabilizer bar, and an adjusting screw. The fixed plate is used to install the stabilizer bar and the adjusting screw at the bottom of the fixed plate.