Helium mass spectrum leak detection test fixture device for special-shaped four-way valve

Abstract

The utility model belongs to the technical field of four-way valve helium mass spectrum leak detection test, and particularly discloses a clamp device for a special-shaped four-way valve helium mass spectrum leak detection test, which comprises a clamp disc, a clamp body and a special-shaped four-way valve body, a base is arranged above the clamp disc, the clamp body is positioned above the base, a D pipe is arranged above the special-shaped four-way valve body, and the D pipe is positioned above the clamp disc. A pipe C, a pipe E and a pipe S are arranged below the special-shaped four-way valve body; the clamp body comprises a clamp sliding seat, a connecting shaft, a fixed seat, a movable groove, a clamp plug and a sealing ring, the clamp sliding seat is connected to the base, the fixed seat is arranged on the inner side of the clamp sliding seat, the connecting shaft is fixed to the clamp sliding seat, the movable groove is formed in the side edge of the fixed seat, the connecting shaft is movably connected into the movable groove, and the clamp plug is arranged on the fixed seat. When the device is used, the bottom clamp plug is movable, and a customer adjusts the state according to the shape of a product, so that the product to be detected and the device are combined together.

Description

Technical Field

[0001] The utility model relates to the technical field of helium mass spectrometer leak detection test for four-way valves, in particular to a helium mass spectrometer leak detection test fixture device for special-shaped four-way valves. Background Art

[0002] Helium mass spectrometer leak detection uses helium or hydrogen as leak detector gas, and uses a gas analyzer to detect helium for leak detection. Helium has low background noise, small molecular weight and viscosity coefficient, so it is easy to pass through the leak hole and diffuse; in addition, helium is an inert gas and does not corrode equipment, so helium is often used as a leak detector gas.

[0003] However, when the helium mass spectrometer leak test of the special-shaped four-way valve is performed, the product pipe is quickly connected to the test system. The four-way valve parts in the cold fitting industry are largely connected by copper pipes, and there are many types of four-way valve products. The EC pipe of the special-shaped four-way valve product pipe will be made into a curved pipe shape according to the requirements. The factory needs a large number of parts to be quickly tested online. The helium mass spectrometer detection equipment has extremely high requirements for the sealing, stability, and convenient maintenance of the tooling device. Therefore, it is necessary to use a clamp plug to plug the C tube, E tube and S tube of the four-way valve, and the existing clamp devices are generally for specific models of four-way valves, which are difficult to apply to different types of special-shaped four-way valves, greatly reducing their practicality. Utility Model Content

[0004] The utility model aims to provide a helium mass spectrometer leak detection test fixture device for a special-shaped four-way valve to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixture device for helium mass spectrometry leak detection test of special-shaped four-way valves, comprising a fixture disk, a fixture body and a special-shaped four-way valve body, a base is arranged above the fixture disk, the fixture body is located above the base, and multiple fixture bodies are arranged, a D tube is arranged above the special-shaped four-way valve body, and a C tube, an E tube and an S tube are arranged below the special-shaped four-way valve body; the fixture body comprises a fixture slide, a connecting shaft, a fixed seat, a movable groove, a fixture plug and a sealing ring, the fixture slide is connected to the base, the fixed seat is arranged on the inner side of the fixture slide, the connecting shaft is fixed on the fixture slide, a movable groove is opened on the side of the fixed seat, the connecting shaft is movably connected in the movable groove, the fixture plug is arranged on the fixed seat, and a sealing ring is arranged at the end of the fixture plug. When the device is used, the bottom fixture plug is movable, and the customer adjusts the state according to the shape of the product to combine the product to be inspected and the device together.

[0006] Preferably, the clamp body is provided with three, corresponding to the C tube, E tube and S tube of the special-shaped four-way valve body, and the clamp plug and sealing ring on each clamp body are respectively inserted into the corresponding C tube, E tube and S tube, wherein the D tube of the four-way valve body is used to connect the external detection gas inlet interface.

[0007] Preferably, the base and the fixture plate are integrally formed.

[0008] Preferably, the movable groove is a waist-shaped groove.

[0009] Preferably, the side of the clamp slide is provided with an inclined edge, and the inclined edge is used to cooperate with the fixed seat to avoid the clamp slide blocking the fixed seat when adjusting the fixed seat, thereby affecting normal use.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model arranges the fixing seat on the fixture slide seat and connects with the fixing seat through a connecting shaft, so that the fixing seat is in an active state and can be adjusted according to the product connection angle, so as to be conveniently and quickly connected with the product. In addition, the device has a small number of parts, a simple structure, and is easy to maintain, which effectively improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the special-shaped four-way valve body installed in the utility model.

[0014] In the figure: 1. fixture plate; 2. base; 3. fixture slide; 4. connecting shaft; 5. fixed seat; 6. movable groove; 7. fixture plug; 8. sealing ring; 9. special-shaped four-way valve body; 10. C tube; 11. D tube; 12. E tube; 13. S tube; 14. inclined edge. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 on the present invention.

[0017] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] See also Figure 1-2 The utility model provides a technical solution: a fixture device for helium mass spectrometry leak detection test of a special-shaped four-way valve, comprising a fixture disk 1, a fixture body and a special-shaped four-way valve body 9, wherein a base 2 is arranged above the fixture disk 1, the fixture body is located above the base 2, and the fixture body is provided with multiple, a D tube 11 is arranged above the special-shaped four-way valve body 9, and a C tube 10, an E tube 12 and an S tube 13 are arranged below the special-shaped four-way valve body 9; the fixture body comprises a fixture slide 3, a connecting shaft 4, a fixed seat 5, a movable groove 6, a fixture plug 7 and a sealing ring 8, the fixture slide 3 is connected to the base 2, the fixed seat 5 is arranged on the inner side of the fixture slide 3, the connecting shaft 4 is fixed on the fixture slide 3, a movable groove 6 is opened on the side of the fixed seat 5, the connecting shaft 4 is movably connected in the movable groove 6, the fixture plug 7 is arranged on the fixed seat 5, and a sealing ring 8 is arranged at the end of the fixture plug 7.

[0019] The device contains two air flow channels to separate the test air and the auxiliary fixture air. The auxiliary fixture air can achieve reliable and stable sealing by applying pressure to the sealing ring 8. When the device is in use, the bottom fixture plug 7 is movable. The customer adjusts the state according to the shape of the product to combine the product to be tested with the device. The sealing ring is used to improve the sealing effect.

[0020] Furthermore, the clamp body is provided with three, which respectively correspond to the C tube 10, E tube 12 and S tube 13 of the special-shaped four-way valve body 9, and the clamp plug 7 and sealing ring 8 on each clamp body are respectively inserted into the corresponding C tube 10, E tube 12 and S tube 13, among which the D tube 11 of the special-shaped four-way valve body 9 is used to connect the external detection gas inlet interface.

[0021] Furthermore, the base 2 and the fixture plate 1 are integrally formed.

[0022] Furthermore, the movable groove 6 is a waist-shaped groove.

[0023] Furthermore, the side of the clamp slide 3 is provided with an inclined edge 14, and the inclined edge 14 is provided to cooperate with the fixed seat 5 to prevent the clamp slide 3 from blocking the fixed seat 5 when the fixed seat 5 is adjusted, thereby affecting normal use.

[0024] Working principle: When in use, the staff adjusts the clamp plug 7 according to the shape angles of the C tube 10, E tube 12 and S tube 13 set on the special-shaped four-way valve body 9. When adjusting, the staff pushes the fixed seat 5 to make the movable groove 6 provided on the fixed seat 5 slide on the connecting shaft 4 on the clamp slide 3. At the same time, the fixed seat 5 can be rotated to adjust the angle of the fixed seat 5. When the clamp plug 7 is adjusted to the matching angle, the corresponding clamp plug 7 and the sealing ring 8 on the clamp plug 7 can be inserted into the C tube 10, E tube 12 and S tube 13 on the special-shaped four-way valve body 9 to complete the installation of the device. The device can be adjusted according to the product connection angle, which is convenient and quick to connect with the product. In addition, the device has a small number of parts, a simple structure, and is easy to maintain, which effectively improves the practicality of the device.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A helium mass spectrometer leak test fixture for special-shaped four-way valves, characterized in that: The invention comprises a fixture plate (1), a fixture body and a special-shaped four-way valve body (9); a base (2) is arranged above the fixture plate (1); the fixture body is located above the base (2); and the fixture body is provided with a plurality of D tubes (11) are arranged above the special-shaped four-way valve body (9); and C tubes (10), E tubes (12) and S tubes (13) are arranged below the special-shaped four-way valve body (9); the fixture body comprises a fixture slide seat (3), a connecting shaft (4), a fixing seat ( 5), a movable groove (6), a fixture plug (7) and a sealing ring (8), the fixture slide (3) is connected to the base (2), the fixed seat (5) is arranged on the inner side of the fixture slide (3), the connecting shaft (4) is fixed on the fixture slide (3), a movable groove (6) is opened on the side of the fixed seat (5), the connecting shaft (4) is movably connected in the movable groove (6), the fixture plug (7) is arranged on the fixed seat (5), and a sealing ring (8) is arranged at the end of the fixture plug (7).

2. The helium mass spectrometer leak test fixture device for special-shaped four-way valves according to claim 1, characterized in that: The clamp bodies are provided with three, respectively corresponding to the C tube (10), E tube (12) and S tube (13) of the special-shaped four-way valve body (9), and the clamp plug (7) and the sealing ring (8) on each clamp body are inserted into the C tube (10), the E tube (12) and the S tube (13).

3. The helium mass spectrometer leak test fixture device for special-shaped four-way valves according to claim 1, characterized in that: The base (2) and the fixture plate (1) are integrally formed.

4. The helium mass spectrometer leak test fixture device for special-shaped four-way valves according to claim 1, characterized in that: The movable groove (6) is a waist-shaped groove.

5. The helium mass spectrometer leak test fixture device for special-shaped four-way valves according to claim 1, characterized in that: The side edge of the clamp slide seat (3) is provided with an inclined edge (14).

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