Combined helium mass spectrometer leak detector

Abstract

The utility model discloses a combined helium mass spectrometer leak detector, which comprises a shell and an interface integrated at the top of the shell, the top of the interface is fixedly connected with a vertical ring, a step is formed between the vertical ring and the top of the interface, and the outer surface wall of the vertical ring is sleeved with a flange joint. In the application, when the external pipeline is in flange connection, the connection between the flange joint and the interface is kept, and the positioning rod is rotated to be screwed with the inner surface wall of the outer frame until the open end of the positioning rod abuts against the outer surface wall of the flange joint, so that the positioning of the flange joint is realized through friction force, and the connection with the external pipeline can be subsequently realized through an external fastener; similarly, when an external pipeline is inserted, the pipeline is inserted into the outer surface wall of the vertical ring, and the positioning of the pipeline is realized through the positioning rod, so that the connection stability of the external pipeline and the joint is ensured, different connection requirements can be met, and the application range of the helium mass spectrometer leak detector is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottles, in particular to a combined helium mass spectrometer leak detector. Background Art

[0002] A helium mass spectrometer leak detector is a precision detection instrument used to find and quantify minute leak points in a vacuum system or a sealed container. It is based on mass spectrometry technology, especially using helium gas as a tracer gas. Because helium gas has an extremely low molecular weight and a small atomic radius, it becomes an ideal leak detection medium.

[0003] Chinese Patent Publication No. CN214843839U, published on November 23, 2021, discloses a helium mass spectrometer leak detector, including a leak detector body, a mounting seat, and a bottom plate. A side leak interface is provided on the leak detector body. The leak detector body is installed at the upper end of the mounting seat. A turntable is provided between the mounting seat and a connecting plate. The turntable is fixedly connected to the connecting plate and rotatably connected to the mounting seat. A height adjustment device is provided between the connecting plate and the bottom plate. Rollers are provided at the lower end of the bottom plate.

[0004] Most external pipe joints are in the form of flange joints or plug-in connections. However, the interfaces at the top of the existing helium mass spectrometer leak detectors such as the above are mostly straight pipes with reinforcement members, which can often only adapt to a single plug-in connection method and cannot be adjusted according to different external pipe joints, increasing the limitations of the helium mass spectrometer leak detector. Therefore, it is urgent to propose a corresponding helium mass spectrometer leak detector to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to propose a combined helium mass spectrometer leak detector to solve the above problems.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A combined helium mass spectrometer leak detector includes a housing and an interface integrated at the top of the housing. A vertical ring is fixedly connected to the top of the interface. A step is formed between the vertical ring and the top of the interface. A flange joint is sleeved on the outer surface of the vertical ring, and the bottom of the flange joint abuts against the step. An outer frame fixedly connected to the outer surface of the housing is provided on the outside of the interface. A fixing component for fixing the flange joint to the interface is provided at the vertical end of the outer frame.

[0008] Preferably, a bottom plate is integrally formed at the bottom of the outer frame, and the bottom plate is fixedly connected to the top of the housing through a locking rod.

[0009] Preferably, the fixing component includes a positioning rod, the outer surface wall of the positioning rod is threadedly connected to the inner surface wall of the vertical end of the outer frame, and the open end of the positioning rod abuts against the outer surface wall of the vertical end of the flange joint.

[0010] Preferably, a rubber sleeve is wrapped around the open end of the positioning rod.

[0011] Preferably, a mounting seat is integrally formed at the top of the outer frame, and the outer surface wall of the arc-shaped end of the mounting seat abuts against the outer surface wall of the flange joint.

[0012] Preferably, a sealing ring is fixedly connected to the top of the step, and the top of the sealing ring abuts against the bottom of the flange joint.

[0013] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0014] 1. In this application, when the external pipeline is flange-connected, the connection between the flange joint and the interface is maintained. Rotate the positioning rod to make it threadedly engage with the inner surface wall of the outer frame until the open end of the positioning rod abuts against the outer surface wall of the flange joint, so as to position the flange joint through friction. Subsequently, the external pipeline can be connected to the external pipeline through external fasteners. Similarly, when the external pipeline is inserted, insert the pipeline into the outer surface wall of the vertical ring, and also use the positioning rod to position the pipeline, thereby ensuring the stability of the connection between the external pipeline and the joint while adapting to different connection requirements, thus improving the applicable range of the helium mass spectrometer leak detector.

[0015] 2. In this application, a bottom plate is integrally formed at the bottom of the outer frame, and the bottom plate is fixed to the top of the housing through a locking rod, thereby ensuring the stability of the position of the outer frame itself while enabling the outer frame to be conveniently disassembled and assembled according to the use requirements, thus improving the convenience of using the helium mass spectrometer leak detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shows the overall structural schematic diagram provided by an embodiment of the present utility model;

[0017] Figure 2 Shows the structural schematic diagram of the outer frame provided by an embodiment of the present utility model;

[0018] Figure 3 Shows the structural schematic diagram of the positioning rod provided by an embodiment of the present utility model;

[0019] Figure 4 Shows the structural schematic diagram of the sealing ring provided by an embodiment of the present utility model.

[0020] Legend Explanation:

[0021] 1. Housing; 2. Interface; 3. Outer frame; 4. Flange joint; 5. Locking rod; 6. Positioning rod; 7. Latching seat; 8. Bottom plate; 9. Rubber sleeve; 10. Vertical ring; 11. Sealing ring. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0023] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0024] A combined helium mass spectrometer leak detector includes a housing 1 and an interface 2 integrated on the top of the housing 1. A vertical ring 10 is fixedly connected to the top of the interface 2. A step is formed between the vertical ring 10 and the top of the interface 2. A flange joint 4 is sleeved on the outer wall of the vertical ring 10, and the bottom of the flange joint 4 abuts against the step. An outer frame 3 fixedly connected to the outer wall of the housing 1 is arranged outside the interface 2. A fixing component for fixing the flange joint 4 and the interface 2 is arranged at the vertical end of the outer frame 3;

[0025] When the external pipeline is flange-connected, keep the connection between the flange joint 4 and the interface 2, rotate the positioning rod 6 to make it screw with the inner wall of the outer frame 3 until the open end of the positioning rod 6 abuts against the outer wall of the flange joint 4, so as to realize the positioning of the flange joint 4 through friction. Subsequently, the external pipeline can be connected to the external pipeline through external fasteners. Similarly, when the external pipeline is inserted, insert the pipeline into the outer wall of the vertical ring 10, and also use the positioning rod 6 to realize the positioning of the pipeline. In this way, while ensuring the stability of the connection between the external pipeline and the interface 2, different connection requirements can be adapted, thereby improving the applicable range of the helium mass spectrometer leak detector.

[0026] Specifically, as Figure 2 shown in Figure 4 and

[0027] shown in Figure 2 and Figure 3As shown in the figure, the fixing component includes a positioning rod 6. The outer wall of the positioning rod 6 is threadedly connected to the inner wall of the vertical end of the outer frame 3, and the open end of the positioning rod 6 abuts against the outer wall of the vertical end of the flange joint 4. Rotate the positioning rod 6 to make it threadedly engage with the inner wall of the outer frame 3 until the open end of the positioning rod 6 abuts against the outer wall of the flange joint 4, so as to position the flange joint 4 through friction. The open end of the positioning rod 6 is wrapped with a rubber sleeve 9 to ensure the stability of the contact between the positioning rod 6 and the flange joint 4 or the external pipeline, and to avoid damage to the external pipeline by the positioning rod 6. The top of the outer frame 3 is integrally formed with a seat 7, and the outer wall of the arc end of the seat 7 abuts against the outer wall of the flange joint 4, further ensuring the position stability of the flange joint 4 and the external pipeline. A sealing ring 11 is fixedly connected to the top of the step, and the top of the sealing ring 11 abuts against the bottom of the flange joint 4, so as to ensure the airtightness of the connection between the flange joint 4 or the external pipeline and the interface 2.

[0028] Working principle: When the external pipeline is flange-connected, keep the connection between the flange joint 4 and the interface 2, and rotate the positioning rod 6 to make it threadedly engage with the inner wall of the outer frame 3 until the open end of the positioning rod 6 abuts against the outer wall of the flange joint 4, so as to position the flange joint 4 through friction. Subsequently, the external pipeline can be connected to the external fasteners. Similarly, when the external pipeline is inserted, insert the pipeline into the outer wall of the vertical ring 10, and the pipeline can also be positioned by the positioning rod 6. While ensuring the stability of the connection between the external pipeline and the interface 2, different connection requirements can be adapted, thereby improving the application range of the helium mass spectrometer leak detector. The bottom of the outer frame 3 is integrally formed with a bottom plate 8, and the bottom plate 8 is fixed to the top of the housing 1 through a locking rod 5, which not only ensures the position stability of the outer frame 3 itself, but also enables the outer frame 3 to be conveniently disassembled and assembled according to the use requirements, thereby improving the convenience of using the helium mass spectrometer leak detector.

[0029] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combined helium mass spectrometer leak detector, comprising a housing (1) and an interface (2) integrated on the top of the housing (1), characterized in that: A vertical ring (10) is fixedly connected to the top of the interface (2), a step is formed between the vertical ring (10) and the top of the interface (2), a flange joint (4) is sleeved on the outer wall of the vertical ring (10), and the bottom of the flange joint (4) abuts against the step, an outer frame (3) is provided on the outside of the interface (2) and is fixedly connected to the outer wall of the shell (1), and a fixing component for fixing the flange joint (4) to the interface (2) is provided at the vertical end of the external frame (3).

2. A combined helium mass spectrometer leak detector according to claim 1, characterized in that: A bottom plate (8) is integrally formed at the bottom of the outer frame (3), and the bottom plate (8) is fixedly connected to the top of the shell (1) via a locking rod (5).

3. A combined helium mass spectrometer leak detector according to claim 2, characterized in that: The fixing assembly comprises a positioning rod (6), the outer wall of the positioning rod (6) being screwed to the inner wall of the vertical end of the outer frame (3), and the open end of the positioning rod (6) abuts against the outer wall of the vertical end of the flange joint (4).

4. A combined helium mass spectrometer leak detector according to claim 3, characterized in that: The open end of the positioning rod (6) is wrapped with a rubber sleeve (9).

5. A combined helium mass spectrometer leak detector according to claim 4, characterized in that: A seat (7) is integrally formed on the top of the outer frame (3), and the outer wall of the arc-shaped end of the seat (7) abuts against the outer wall of the flange joint (4).

6. A combined helium mass spectrometer leak detector according to claim 5, characterized in that: A sealing ring (11) is fixedly connected to the top of the step, and the top of the sealing ring (11) abuts against the bottom of the flange joint (4).

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