Device leak detection device
By designing a support frame and fixing modules, and combining pressure sensors and vacuum gauges, the problem of component damage caused by cavity shaking or displacement in leak detection devices has been solved, achieving stable detection in multiple environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEI JING TORCH CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-24
AI Technical Summary
Existing leak detection devices are prone to component damage due to cavity shaking or displacement, making them unable to operate stably under various environmental conditions.
The design employs a combination of a support frame, pressure sensor, vacuum gauge, fixing module, and leak detection mechanism. Stable detection is achieved through a four-way pipeline, switching valve, and pressurization pipeline, reducing the impact of external factors on the leak detection chamber.
This effectively reduces the impact of vibration and collision on the leak detection device, enabling it to work stably under various environmental conditions and preventing component damage.
Smart Images

Figure CN224163312U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of device leak detection technology, and in particular to a device leak detection device. Background Technology
[0002] A component leak detection device is a testing instrument used to test the sealing performance of components. It can detect the sealing performance of components using a high-precision pressure loosening device. Existing leak detection devices are prone to component damage due to cavity shaking or displacement, making them unstable under various environmental conditions. Summary of the Invention
[0003] This invention provides a device for detecting leaks, which solves the problem in the prior art where damage to components caused by cavity shaking or displacement prevents the device from working stably under various environmental conditions.
[0004] A device leak detection apparatus includes a support frame, a pressure sensor, a vacuum gauge, a fixing module, and a leak detection mechanism. The upper leak detection cavity of the leak detection mechanism passes through the support frame. The pressure sensor and the vacuum gauge are disposed on the upper part of the support frame. The lower part of the leak detection mechanism is disposed inside the support frame. The fixing module is disposed inside the support frame. One end of the fixing module is provided with the leak detection mechanism, and the other end of the fixing module is disposed on the support frame.
[0005] According to the device leak detection device of this utility model, the leak detection mechanism further includes a four-way pipe, a leak detection cavity and an inlet pipe; the four-way pipe is arranged at the lower part of the leak detection cavity, the inlet pipe is arranged at the first end of the four-way pipe, and a vacuum sensor is arranged at the second end of the four-way pipe.
[0006] The device leak detection device according to this utility model further includes a first switching valve and a second switching valve; the first switching valve is also provided at the first end of the four-way pipe, and the second switching valve is also provided at the second end of the four-way pipe.
[0007] The device leak detection device according to this utility model further includes a first port and a second port; the fourth end of the four-way pipe is provided with the first port and the second port.
[0008] The device leak detection device according to this utility model further includes a pressurization pipeline, wherein the first port is connected to the pressure sensor and the second port is connected to the pressurization pipeline.
[0009] The device leak detection device according to this utility model also includes a movable cover plate, which is provided on the upper part of the leak detection cavity.
[0010] The device leak detection device according to this utility model further includes a first mounting plate and a second mounting plate; the upper part of the four-way pipe is provided with the second mounting plate, and the lower part of the four-way pipe is provided with the first mounting plate.
[0011] The device leak detection device according to this utility model also includes a vacuum pumping device, and the inlet pipe is connected to the vacuum pumping device.
[0012] The second port of this invention connects to a pressurized pipeline, and the first port connects to a pressure sensor for real-time pressure monitoring. The inlet of the second switching valve connects to the vacuum furnace being tested to detect leaks. Different pressure chambers can be filled into the leak detection chamber through the pressurized pipeline according to different leak detection requirements. The fixed module and support frame provide stable support for the leak detection chamber, effectively reducing the impact of external factors such as vibration and collisions on the chamber, preventing component damage due to chamber shaking or displacement, and ensuring stable operation of the leak detection device under various environmental conditions. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 A three-dimensional structural schematic diagram of a device leak detection device;
[0015] Figure 2 This is a cross-sectional view of the device leak detection device.
[0016] Figure 3 This is a schematic diagram of the main view structure of a device leak detection device.
[0017] Figure 4 A 3D structural diagram of the leak detection mechanism. Figure 1 ;
[0018] Figure 5 A 3D structural diagram of the leak detection mechanism. Figure 2 ;
[0019] Reference numerals: 1. Support frame; 2. Pressure sensor; 3. Vacuum gauge; 4. Leak detection mechanism; 11. Fixing module; 12. First mounting plate; 13. Second mounting plate; 41. Movable cover plate; 42. Leak detection chamber; 43. Inlet pipe; 44. First switching valve; 45. Second switching valve; 46. Vacuum sensor; 47. Four-way pipe; 48. First port; 49. Second port. Detailed Implementation
[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0021] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.
[0023] In this embodiment of the 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.
[0024] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or at least one embodiment or example. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0025] The following is combined with Figure 1-5 A device leak detection device according to an embodiment of the present invention includes a support frame 1, a pressure sensor 2, a vacuum gauge 3, a fixing module 11, and a leak detection mechanism 4. The upper leak detection cavity of the leak detection mechanism 4 passes through the support frame 1. The pressure sensor 2 and the vacuum gauge 3 are disposed on the upper part of the support frame 1. The lower part of the leak detection mechanism 4 is disposed inside the support frame 1. The fixing module 11 is disposed inside the support frame 1. The leak detection mechanism 4 is disposed at one end of the fixing module 11, and the other end of the fixing module 11 is disposed on the support frame 1.
[0026] In some embodiments, the leak detection mechanism 4 further includes a four-way pipe 47, a leak detection chamber 42, and an inlet pipe 43; the four-way pipe 47 is disposed at the lower part of the leak detection chamber 42, the inlet pipe 43 is disposed at the first end of the four-way pipe 47, and a vacuum sensor 46 is disposed at the second end of the four-way pipe 47. The vacuum sensor 46 is connected to the vacuum gauge 3. The second end of the four-way pipe 47 is also connected to a vacuum furnace.
[0027] In some embodiments, a first switching valve 44 and a second switching valve 45 are also included; the first switching valve 44 is also provided at the first end of the four-way pipe 47, and the second switching valve 45 is also provided at the second end of the four-way pipe 47. The first switching valve 44 and the second switching valve 45 are high-vacuum pneumatic baffle valves.
[0028] In some embodiments, a first port 48 and a second port 49 are also included; the fourth end of the four-way conduit 47 is provided with the first port 48 and the second port 49.
[0029] In some embodiments, a pressurization line is also included, with a first port 48 connected to a pressure sensor 2 and a second port 49 connected to the pressurization line.
[0030] In some embodiments, a movable cover plate 41 is also included, and the upper part of the leak detection cavity 42 is provided with a movable cover plate 42.
[0031] In some embodiments, a first mounting plate 12 and a second mounting plate 13 are also included; the upper part of the four-way pipe 47 is provided with the second mounting plate 13, and the lower part of the four-way pipe 47 is provided with the first mounting plate 12.
[0032] In some embodiments, a vacuum pumping device is also included, with the inlet pipe 43 connected to the vacuum pumping device.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A device leak detection device, characterized in that, It includes a support frame, a pressure sensor, a vacuum gauge, a fixing module, and a leak detection mechanism; the upper leak detection cavity of the leak detection mechanism passes through the support frame, the pressure sensor and the vacuum gauge are located on the upper part of the support frame, the lower part of the leak detection mechanism is located inside the support frame, the fixing module is located inside the support frame, one end of the fixing module is connected to the leak detection mechanism, and the other end of the fixing module is connected to the support frame.
2. The device leak detection device according to claim 1, characterized in that, The leak detection mechanism also includes a four-way pipe, a leak detection chamber, and an inlet pipe; the four-way pipe is arranged at the lower part of the leak detection chamber, the inlet pipe is arranged at the first end of the four-way pipe, and a vacuum sensor is arranged at the second end of the four-way pipe.
3. The device leak detection device according to claim 2, characterized in that, It also includes a first switching valve and a second switching valve; the first switching valve is also provided at the first end of the four-way pipe, and the second switching valve is also provided at the second end of the four-way pipe.
4. The device leak detection device according to claim 2, characterized in that, It also includes a first port and a second port; the fourth end of the four-way conduit is provided with the first port and the second port.
5. The device leak detection device according to claim 4, characterized in that, It also includes a pressurization line, with the first port connected to the pressure sensor and the second port connected to the pressurization line.
6. The device leak detection device according to claim 2, characterized in that, It also includes a movable cover plate, which is provided on the upper part of the leak detection cavity.
7. The device leak detection device according to claim 2, characterized in that, It also includes a first mounting plate and a second mounting plate; the second mounting plate is provided at the upper part of the four-way pipe, and the first mounting plate is provided at the lower part of the four-way pipe.
8. The device leak detection device according to claim 2, characterized in that, It also includes a vacuum pumping device, and the inlet pipe is connected to the vacuum pumping device.