Vacuum coating calibration leak hole device

Abstract

The utility model relates to the technical field of leak detection equipment, in particular to a vacuum coating leak hole calibration device, which comprises a shell, one end of the shell is connected with an inflation tube, a plurality of inner tubes are arranged in the shell, two ends of each inner tube are provided with through holes, capillary tubes are arranged in the inner tubes, one end of each inner tube is provided with a joint, and the other end of each inner tube is provided with a pressure sensor. A rotating disc is installed on the outer side of the connector, the inner side of the rotating disc is of a hollow structure, an air inlet is formed in the side, close to the connector, of the rotating disc, and a leakage detecting opening is formed in the side, away from the connector, of the rotating disc. According to the vacuum coating leak hole calibration device, the matched design of the rotating disc and the inner pipes is adopted, so that a user only needs to simply rotate the rotating disc, the air inlet can be connected with different inner pipes, leak holes of different sizes can be quickly switched, tedious replacement operation is not needed, and time and labor cost are greatly saved.

Description

Technical Field

[0001] The utility model relates to the technical field of leak detection equipment, in particular to a vacuum coating calibration leak hole device. Background Art

[0002] In the field of vacuum coating technology, the leak calibration device is a key device to ensure the quality and performance of the coating. However, the existing leak calibration device has some problems during use, especially in terms of rapid switching of the leak size.

[0003] In practical applications, it is often necessary to frequently change leaks of different sizes to meet different calibration requirements, but the calibration devices in the prior art are cumbersome to operate and have low switching efficiency, which seriously affects production efficiency and calibration accuracy. Therefore, developing a vacuum coating calibration leak device that can quickly switch the leak size, is easy to operate, and has high calibration accuracy has become an important issue that needs to be solved in the current field of leak detection equipment technology. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum coating calibration leak device to solve the problem raised in the above background technology that in actual applications, leaks of different sizes often need to be frequently replaced to adapt to different calibration requirements, but the calibration device of the prior art is cumbersome to operate and has low switching efficiency, which seriously affects the production efficiency and calibration accuracy.

[0005] To achieve the above-mentioned purpose, the utility model provides a vacuum coating calibration leak device, including an outer shell, one end of which is connected to an inflation tube, a plurality of inner tubes are installed inside the outer shell, both ends of the inner tubes are provided with through holes, a capillary is provided inside, a joint is installed at one end of the inner tube, a rotating disk is installed outside the joint, the inner side of the rotating disk is a hollow structure, an air inlet is provided on the side close to the joint, and a leak detection port is provided on the side away from the joint.

[0006] Preferably, a valve is installed on the inflation tube.

[0007] Preferably, a sealing cover is provided on the other side of the rotating disk, and the sealing cover is threadedly connected to one end of the outer shell.

[0008] Preferably, the inner tubes are arranged in an annular manner at equal intervals inside the outer shell, and when the rotating disk rotates, the air inlet is connected to different inner tubes.

[0009] Preferably, the joint comprises a fixed sleeve, one end of which is connected to the inner tube, the other end of which is plugged with a movable tube, and the outer end of which is mounted with a clamping cap.

[0010] Preferably, a channel is provided inside the clamping cap.

[0011] Preferably, a spring is sleeved outside the movable tube, the outer wall of the clamping cap is a spherical structure, and the clamping cap is clamped and matched with the air inlet.

[0012] Preferably, one end of the outer shell is provided with an air outlet, and the outside of the air outlet is connected with an air charging pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the vacuum coating calibration leak hole device, the vacuum coating calibration leak hole device provided by the present utility model realizes the rapid switching of the leak hole size through a unique structural design and innovative technical application, greatly improving the production efficiency and calibration accuracy.

[0015] Specifically, the device adopts the cooperative design of a rotating disk and an inner tube, enabling the user to simply rotate the rotating disk to connect the air inlet with different inner tubes, thereby rapidly switching leak holes of different sizes without cumbersome replacement operations, greatly saving time and labor costs. At the same time, the device also has the advantages of simple operation, compact structure, good sealing performance, etc., which can effectively ensure the stability and reliability of the vacuum coating process, improve the coating quality and performance, and provide strong support for the development and application of vacuum coating technology. Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is one of the internal structural schematic diagrams of the outer shell in the present utility model;

[0018] Figure 3 is the other internal structural schematic diagram of the outer shell in the present utility model;

[0019] Figure 4 is the structural schematic diagram of the joint in the present utility model;

[0020] Figure 5 is the structural schematic diagram of the rotating disk in the present utility model;

[0021] The meanings of the various reference numerals in the figure are as follows:

[0022] 1. Outer shell; 11. Air outlet; 2. Air charging pipe; 3. Valve; 4. Sealing cover; 5. Inner tube; 51. Through hole; 6. Capillary tube; 7. Joint; 71. Fixed sleeve; 72. Movable tube; 73. Spring; 74. Clamping cap; 741. Channel; 8. Rotating disk; 81. Air inlet; 82. Leak detection port. Detailed Embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] The present utility model provides a vacuum coating calibration leak hole device, as Figures 1 - 5 shown, which includes a housing 1. One end of the housing 1 is connected with a gas charging pipe 2. A plurality of inner pipes 5 are installed inside the housing 1. Through holes 51 are provided at both ends of the inner pipe 5, and a capillary 6 is arranged inside. Sealant is filled between the inside of the inner pipe 5 and the capillary 6 to ensure the seal outside the capillary 6. Both ends of the capillary 6 extend out from the through holes 51 at both ends of the inner pipe 5. One end of the inner pipe 5 is installed with a connector 7, and a rotating disk 8 is installed outside the connector 7. The inner side of the rotating disk 8 is a hollow structure. An air inlet 81 is provided on one side close to the connector 7, and a leak detection port 82 is provided on the side far from the connector 7.

[0025] In this embodiment, a valve 3 is installed on the gas charging pipe 2 to facilitate the opening and closing of the gas charging pipe 2.

[0026] Specifically, a sealing cover 4 is provided on the other side of the rotating disk 8. The sealing cover 4 is threadedly connected to one end of the housing 1 to facilitate the sealing and shielding when the rotating disk 8 is not in use.

[0027] Furthermore, the inner pipes 5 are arranged in an annular and equally spaced manner inside the housing 1. When the rotating disk 8 rotates, the air inlet 81 is connected to different inner pipes 5.

[0028] Furthermore, the connector 7 includes a fixed sleeve 71. One end of the fixed sleeve 71 is connected to the inner pipe 5, and a movable pipe 72 is inserted into the other end of the fixed sleeve 71. A clamping cap 74 is installed at the outer end of the movable pipe 72 to facilitate the docking with the air inlet 81 of the rotating disk 8.

[0029] Furthermore, a channel 741 is provided inside the clamping cap 74 to facilitate the leakage gas to be discharged outward and detected by the detector.

[0030] Furthermore, a spring 73 is sleeved outside the movable pipe 72. The outer wall of the clamping cap 74 is a spherical structure. The clamping cap 74 is in clamping fit with the air inlet 81, so that the connection between the air inlet 81 and the clamping cap 74 is tight during docking.

[0031] Furthermore, an air outlet 11 is provided at one end of the housing 1. The outside of the air outlet 11 is connected to the gas charging pipe 2 to facilitate the gas to be filled into the housing 1.

[0032] When the vacuum coating calibration leak hole device of the present utility model is in use, first, a gas with a certain pressure is filled into the interior of the housing 1 through the gas filling pipe 2, and the valve 3 is closed to maintain the gas pressure inside the housing 1. Then, the rotating disk 8 is rotated so that its air inlet 81 is aligned with and connected to the joint 7 of the inner tube 5 to be calibrated. The leak rates of the capillary tubes 6 in different inner tubes 5 are different and are used for the calibration operations of different detectors. At this time, since gas has been filled into the interior of the housing 1, the gas will pass through the air inlet 81, the joint 7, the inner tube 5, and the capillary tube 6, and finally be discharged from the leak detection port 82.

[0033] During the process of gas discharge, if there are leak holes in the inner tube 5 or the capillary tube 6, the gas will leak out from the leak holes and be detected by an external detector. The flow rate or pressure of the leaked gas can be measured by the detector, thereby judging the accuracy of the detector.

[0034] When calibration needs to be carried out through leak holes of different sizes, only the rotating disk 8 needs to be rotated so that its air inlet 81 is connected to the joint 7 of different inner tubes 5. Since the inner tubes 5 are arranged in a circular and equally spaced manner inside the housing 1, the rotation of the rotating disk 8 can achieve the rapid switching of the air inlet 81 with different inner tubes 5, thereby realizing the calibration of leak holes of different sizes.

[0035] After the leak hole calibration is completed, the sealing cover 4 can be opened, and the rotating disk 8 can be removed from the housing 1 for the next calibration operation. At the same time, the valve 3 can also be opened to discharge the gas inside the housing 1 for the next gas filling and calibration operations.

[0036] The above shows and describes the basic principle, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum coating calibration leak device, comprising a housing (1), characterized in that: One end of the outer shell (1) is connected to an air filling tube (2), a plurality of inner tubes (5) are installed inside the outer shell (1), both ends of the inner tubes (5) are provided with through holes (51), a capillary tube (6) is arranged inside, a joint (7) is installed at one end of the inner tube (5), a rotating disk (8) is installed outside the joint (7), the inner side of the rotating disk (8) is a hollow structure, an air inlet (81) is arranged on a side close to the joint (7), and a leak detection port (82) is arranged on a side away from the joint (7).

2. The vacuum coating calibration leak device according to claim 1, characterized in that: The inflation tube (2) is provided with a valve (3).

3. The vacuum coating calibration leak device according to claim 1, characterized in that: A sealing cover (4) is provided on the other side of the rotating disk (8), and the sealing cover (4) is threadedly connected to one end of the housing (1).

4. The vacuum coating calibration leak device according to claim 1, characterized in that: The inner tubes (5) are arranged in an annular manner at equal intervals inside the outer shell (1), and when the rotating disk (8) rotates, the air inlet (81) is connected to different inner tubes (5).

5. The vacuum coating calibration leak device according to claim 1, characterized in that: The joint (7) comprises a fixed sleeve (71), one end of the fixed sleeve (71) is connected to the inner tube (5), the other end of the fixed sleeve (71) is plugged with a movable tube (72), and the outer end of the movable tube (72) is mounted with a clamping cap (74).

6. The vacuum coating calibration leak device according to claim 5, characterized in that: A channel (741) is provided inside the clamping cap (74).

7. The vacuum coating calibration leak device according to claim 5, characterized in that: A spring (73) is sleeved on the outer side of the movable tube (72); the outer wall of the clamping cap (74) is a spherical structure; and the clamping cap (74) is clamped and matched with the air inlet (81).

8. The vacuum coating calibration leak device according to claim 1, characterized in that: One end of the housing (1) is provided with a gas delivery port (11), and the outer side of the gas delivery port (11) is connected to the gas charging pipe (2).

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