Helium leakage detection tool

Abstract

The utility model relates to the technical field of product detection, in particular to a helium leakage detection tool which comprises a working table, a helium mass spectrometer leak detector and a helium tank are arranged on one side of the working table, and an air gun is connected to the helium tank. A sealing base is arranged on the surface of the workbench, an air hole is formed in the middle of the sealing base, and a first sealing ring is arranged on the surface of the sealing base; a sealing connecting piece is arranged at the bottom of the sealing base, one end of the sealing connecting piece is communicated with the air hole, and the other end of the sealing connecting piece is communicated with an air pipe of the helium mass spectrometer leak detector; a sealing cover is arranged on the upper side of the sealing base and located over the air hole, and a second sealing ring is arranged on the side, facing the air hole, of the sealing cover. Aiming at the technical problem that the existing detection means have defects, the device can detect whether the sealing performance of the polished sealing surface of a product is qualified or not, and the polished sealing surface is protected from being damaged while the sealing performance is detected.

Description

Technical Field

[0001] The utility model relates to the technical field of product detection, and particularly relates to a helium leak detection tooling. Background Art

[0002] In the existing production process, it is necessary to detect polished quartz windon products. Especially for the sealing surface of the products, it is necessary to check whether its sealing performance is qualified, so as to ensure the qualification rate of the products shipped out and reduce customer complaints. However, the existing sealing detection means still have defects, lack pertinence for some products, there are inapplicable situations, and when checking the polished sealing surface of the products, the polished sealing surface may be damaged. Content of the Utility Model

[0003] Aiming at the technical problem that the existing detection means have defects, the utility model provides a helium leak detection tooling, which can check whether the sealing performance of the polished sealing surface of the product is qualified, and at the same time protect the polished sealing surface from damage when detecting the sealing performance.

[0004] The technical solution provided by the utility model is: a helium leak detection tooling, including a workbench, on one side of the workbench, there is a helium mass spectrometer leak detector and a helium gas cylinder, and a gas gun is connected to the helium gas cylinder; on the surface of the workbench, there is a sealing base fixedly arranged, in the middle of the sealing base, there is a pore, and the pore is used for communicating with the structural hole of the product. Along the circumference on the surface of the sealing base, there is a first sealing ring, and the first sealing ring is used for abutting against the surface of the product; at the bottom of the sealing base, there is a sealing connector fixedly arranged, one end of the sealing connector is communicated with the pore, and the other end of the sealing connector is communicated with the air pipe of the helium mass spectrometer leak detector; above the sealing base, there is a sealing cover, and the sealing cover is used for closing the structural hole of the product. The sealing cover is located directly above the pore, and on the side of the sealing cover facing the pore, there is a second sealing ring.

[0005] Optionally, on the side of the sealing connector facing the sealing base, there is an annular groove, and a third sealing ring is arranged in the annular groove.

[0006] Optionally, a handle is arranged on the sealing cover.

[0007] Optionally, a limiting groove is arranged at the bottom of the sealing base, and the limiting groove is arranged in a matching way with one end of the sealing connector.

[0008] Optionally, the sealing connector and the sealing base are connected by bolts.

[0009] Optionally, the helium gas cylinder and the gas gun are connected by a hose.

[0010] Advantageous Effects

[0011] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects: Aiming at the technical problem that the existing detection means have defects, the present utility model can check whether the sealing performance of the polished sealing surface of the product is qualified, and while detecting the sealing performance, protect the polished sealing surface from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of a helium leak detection tooling proposed in an embodiment of the present utility model.

[0013] Figure 2 It is a schematic partial sectional view of a helium leak detection tooling proposed in an embodiment of the present utility model.

[0014] Figure 3 is Figure 2 an enlarged schematic view of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] To further understand the content of the present utility model, the present utility model will be described in detail with reference to the drawings and embodiments.

[0016] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than limiting the utility model. In addition, it should be noted that for the convenience of description, only the parts related to the utility model are shown in the drawings. The terms "first", "second", etc. in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions without contradiction or conflict, and are all within the scope of protection required by the present utility model.

[0017] Embodiment 1

[0018] In combination with the attached Figures 1-3, this embodiment proposes a helium leak detection tooling, including a workbench 10. On one side of the workbench 10, a helium mass spectrometer leak detector 11 and a helium gas cylinder 12 are provided. A gas gun 13 is connected to the helium gas cylinder 12; a sealing base 14 is fixedly arranged on the surface of the workbench 10. An air hole 15 is arranged in the middle of the sealing base 14, and the air hole 15 is used to communicate with the structural hole of the product. A first sealing ring 16 is arranged on the surface of the sealing base 14 along the circumferential direction, and the first sealing ring 16 is used to abut against the surface of the product; a sealing connecting piece 17 is fixedly arranged at the bottom of the sealing base 14. One end of the sealing connecting piece 17 communicates with the air hole 15, and the other end of the sealing connecting piece 17 communicates with the air pipe of the helium mass spectrometer leak detector 11; a sealing cover 18 is arranged on the upper side of the sealing base 14, and the sealing cover 18 is used to close the structural hole of the product. The sealing cover 18 is located directly above the air hole 15, and a second sealing ring 19 is arranged on the side of the sealing cover 18 facing the air hole 15.

[0019] Aiming at the technical problem that the existing detection means has defects, a helium leak detection tooling of this embodiment can check whether the sealing performance of the polished sealing surface of the product is qualified, and while detecting the sealing performance, protect the polished sealing surface from damage.

[0020] The using method of the helium leak detection tooling of this embodiment is as follows: First, fix one end of the sealing connecting piece 17 on the sealing base 14, and at the same time connect the other end of the sealing connecting piece 17 with the air pipe of the helium mass spectrometer leak detector 11. Install the first sealing ring 16 on the sealing base 14, and then place the product on the sealing base 14, and ensure that the air hole 15 communicates with the structural hole of the product. At this time, the surface of the product fits with the first sealing ring 16, avoiding direct contact between the sealing base 14 and the surface of the product, so as to protect the polished sealing surface of the product from damage. Then place the second sealing ring 19 and the sealing cover 18 on the structural hole of the product, and ensure that the sealing cover 18 completely closes the structural hole of the product.

[0021] Subsequently, turn on the helium mass spectrometer leak detector 11, adjust it to the working state of reacting to helium gas, and then spray helium gas around the product through the gas gun 13, and observe the signal value displayed by the helium mass spectrometer leak detector 11. It can be understood that when the helium mass spectrometer leak detector 11 works, it will evacuate the communication path of the sealing connecting piece 17, the air hole 15 and the structural hole of the product, and the atmospheric pressure will naturally press the sealing cover 18 tightly.

[0022] In an alternative embodiment, a ring groove 141 is arranged on the side of the sealing connecting piece 17 facing the sealing base 14, and a third sealing ring is arranged in the ring groove 141. Thus, through the setting of the third sealing ring, the sealing performance between the sealing connecting piece 17 and the sealing base 14 can be further ensured.

[0023] Also, in other embodiments, a limiting groove 142 is provided at the bottom of the sealing base 14, and the limiting groove 142 is arranged to match one end of the sealing connection member 17. Thus, when assembling the sealing base 14 and the sealing member connection member, it can help the user to position the two more quickly, improving the operation convenience.

[0024] In addition, for the convenience of taking the sealing cover 18, in some embodiments, a handle 181 may be provided on the sealing cover 18.

[0025] In an alternative embodiment, the sealing connection member 17 and the sealing base 14 may be connected by bolts, and several bolts may be circumferentially distributed to ensure a stable connection between the sealing connection member 17 and the sealing base 14.

[0026] Since helium needs to be sprayed around the product during the test, the helium tank 12 and the air gun 13 may be connected by a hose 20 for convenient operation.

[0027] The above schematically describes the present invention and its embodiments. The description is not restrictive, and only one of the embodiments of the present invention is shown in the drawings. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural forms and embodiments without creative work without departing from the gist of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A helium leak detection tool, characterized in that: It comprises a workbench (10), a helium mass spectrometer leak detector (11) and a helium tank (12) are arranged on one side of the workbench (10), and an air gun (13) is connected to the helium tank (12); A sealing base (14) is fixedly arranged on the surface of the workbench (10), an air hole (15) is arranged in the middle of the sealing base (14), and the air hole (15) is used to communicate with the structural hole of the product; a first sealing ring (16) is arranged on the surface of the sealing base (14) along the circumferential direction, and the first sealing ring (16) is used to abut against the surface of the product; A sealing connector (17) is fixedly provided at the bottom of the sealing base (14), one end of the sealing connector (17) is connected to the air hole (15), and the other end of the sealing connector (17) is connected to the air pipe of the helium mass spectrometer leak detector (11); A sealing cover (18) is provided on the upper side of the sealing base (14), and the sealing cover (18) is used to seal the structural hole of the product. The sealing cover (18) is located directly above the air hole (15), and a second sealing ring (19) is provided on the side of the sealing cover (18) facing the air hole (15).

2. A helium leak detection tool according to claim 1, characterized in that: A ring groove (141) is provided on one side of the sealing connection piece (17) facing the sealing base (14), and a third sealing ring is provided in the ring groove (141).

3. A helium leak detection tool according to claim 1, characterized in that: The sealing cover (18) is provided with a handle (181).

4. A helium leak detection tool according to claim 1, characterized in that: A limiting groove (142) is provided at the bottom of the sealing base (14), and the limiting groove (142) is matched with one end of the sealing connector (17).

5. The helium leak detection tool according to claim 1, characterized in that: The sealing connector (17) is connected to the sealing base (14) via bolts.

6. The helium leak detection tool according to claim 1, characterized in that: The helium tank (12) and the air gun (13) are connected via a hose (20).

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