Maintenance auxiliary device for molecular pump of mass spectrometer

Abstract

The utility model relates to a mass spectrometer molecular pump maintenance auxiliary device, and relates to the technical field of mass spectrometer molecular pumps. Comprising a disc, a center hole is formed in the center of the disc, and a hexagonal stainless steel nut is welded in the center hole; a plurality of through holes are formed in the circumferential side of the disc, a stainless steel foot is welded in each through hole, and the stainless steel feet and the hexagonal stainless steel nuts are located on the two sides of the disc respectively. The cover of the molecular pump is convenient to open and tighten, so that the maintenance process is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to mass spectrometer molecular pump technical field, concretely is a kind of mass spectrometer molecular pump maintenance auxiliary device. BACKGROUND

[0002] Mass spectrometer molecular pump is very important working element, regular maintenance and maintenance have crucial effect to maintain instrument state, but due to its structural features, molecular pump cover is very difficult to open, mostly with the aid of sharp mouth forceps etc.

[0003] Therefore, how to provide a kind of mass spectrometer molecular pump maintenance auxiliary device for opening molecular pump cover, become the technical problem that the technical personnel in the field urgently need to solve. INVENTION CONTENTS

[0004] To solve at least one technical problem in the background art, the utility model provides a kind of mass spectrometer molecular pump maintenance auxiliary device, it is convenient to open and tighten molecular pump cover, so that the maintenance process is more convenient.

[0005] To achieve the above purpose, the utility model provides a kind of mass spectrometer molecular pump maintenance auxiliary device, comprising: disc, the center hole is formed in the center of the disc, hexagonal stainless steel nut is welded in the center hole;The periphery of the disc is provided with a plurality of through holes, stainless steel foot is welded in each through hole, and stainless steel foot and hexagonal stainless steel nut are located on the two sides of the disc respectively.

[0006] Further, the through hole is provided with four, and two about the disc center symmetry is arranged.

[0007] Further, the distance s between the two through holes about the disc center symmetry is 60mm.

[0008] Further, the radius r of the through hole is 3mm.

[0009] Further, the radius R of the disc is 36mm, and the thickness is 2mm.

[0010] Further, the diameter d of the center hole of the disc is 13mm.

[0011] Further, the diameter of the stainless steel foot is 3mm, and the height is 3.5mm.

[0012] The utility model has the advantages of:

[0013] The utility model provides a kind of mass spectrometer molecular pump maintenance auxiliary device, simple structure, convenient to use, and it is compatible with molecular pump, it is convenient to open and tighten molecular pump cover, so that the maintenance process is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Schematic view of the three-dimensional structure of the utility model Figure 1 ;

[0015] Figure 2 Schematic view of the three-dimensional structure of the utility model Figure 2 ;

[0016] Figure 3 Front view of the utility model.

[0017] Wherein, 1 - disc, 2 - center hole, 3 - hexagonal stainless steel nut, 4 - through hole, 5 - stainless steel foot. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0020] In the present application, the terms "up", "down", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0021] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms may also be used to indicate other meanings, for example, the term "up" may also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0022] Furthermore, the terms "mounting", "arrangement", "provided with", "connected", "linked", "sleeved" should be interpreted broadly. For example, it can be a fixed connection, detachable connection, or integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or an internal connection between two devices, elements or components. The specific meaning of the above terms in the present application can be understood according to the specific circumstances by those skilled in the art.

[0023] Based on the working condition adjustment of the turbine, the principle is achieved by changing the throat area of the turbine guide vane. The utility model provides a kind of mass spectrometer molecular pump maintenance auxiliary device, namely, guide vane is divided into two parts with the downstream of guide vane as boundary, downstream part can be telescoped in upstream guide vane by actuating mechanism, and the throat area of guide vane is changed accordingly, so as to achieve the purpose of adjusting the working condition of turbine.

[0024] To achieve the above object, as shown in Figures 1-3 The utility model provides a kind of mass spectrometer molecular pump maintenance auxiliary device, comprising: disc 1, the center hole 2 is set in the center of disc 1, and hexagonal stainless steel nut 3 is welded in the center hole 2;A plurality of through holes 4 are formed in the circumferential side of the disc 1, a stainless steel foot 5 is welded in each through hole 4, and the stainless steel foot 5 and the hexagonal stainless steel nut 3 are located on the two sides of the disc 1 respectively.

[0025] Further optimize technical scheme, the through hole 4 is provided with four, and two about the center of the disc 1 symmetry setting is set. The distance s between the two through holes 4 about the center of the disc 1 symmetry setting is 60mm. Four through holes 4 position correspond four stainless steel feet 5, four stainless steel feet 5 can be adapted to the size position of the hole on the pump cover, so that the cover opening process is more convenient.

[0026] Further optimize technical scheme, the radius r of the through hole 4 is 3mm. The diameter of the stainless steel foot 5 is 3mm, and the height is 3.5mm, so that the stainless steel foot can be inserted into the hole on the pump cover, and it is not easy to fall out during the opening and tightening of the pump cover.

[0027] Further optimize technical scheme, the radius R of the disc 1 is 36mm, and the thickness is 2mm, which can be adapted to the pump cover, and on the basis of reducing cost, the mechanical strength of the disc is ensured.

[0028] Further optimize technical scheme, the diameter d of the center hole 2 of the disc 1 is 13mm, which is convenient for connecting the hexagonal stainless steel nut.

[0029] During maintenance of the mass spectrometer molecular pump, the pump cover needs to be unscrewed or tightened, and the current tools are inconvenient to operate, therefore, the utility model provides a kind of mass spectrometer molecular pump maintenance auxiliary device, simple structure, convenient to use, compatible with molecular pump, open and tighten molecular pump cover, make the maintenance process more convenient.

[0030] The above is only the preferred embodiment of the utility model, and does not limit the technical range of the utility model in any way, so any slight modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model still belongs to the range of the technical scheme of the utility model.

Claims

1. A mass spectrometer molecular pump service aid, characterised in that, Comprise: A disc, a center hole is opened in the center of the disc, a hexagonal stainless steel nut is welded in the center hole; a plurality of through holes are opened in the circumferential side of the disc, a stainless steel foot is welded in each through hole, and the stainless steel foot and the hexagonal stainless steel nut are located on the two sides of the disc respectively.

2. A mass spectrometer molecular pump maintenance aid as claimed in claim 1, wherein, The through holes are provided with four, which are symmetrically arranged about the center of the disc.

3. A mass spectrometer molecular pump maintenance aid as claimed in claim 2, wherein, The distance s between the two through holes symmetrically arranged about the center of the disc is 60mm.

4. A mass spectrometer molecular pump maintenance aid as claimed in claim 3, wherein, The radius r of the through hole is 3mm.

5. A mass spectrometer molecular pump maintenance aid as claimed in claim 1 or 4 wherein, The radius R of the disc is 36mm, and the thickness is 2mm.

6. A mass spectrometer molecular pump maintenance aid as claimed in claim 5, wherein, The diameter d of the center hole of the disc is 13mm.

7. A mass spectrometer molecular pump maintenance aid as claimed in claim 1 or 4 wherein, The diameter of the stainless steel foot is 3mm, and the height is 3.5mm.

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