Mass spectrum detector shell and mass spectrum detector

Abstract

The utility model relates to the field of mass spectrometer equipment, and particularly provides a mass spectrum detector and a shell, the mass spectrum detector comprises a lower bottom basket and an upper shell cover, the inner bottom of the lower bottom basket is provided with a mounting base, the mounting base is composed of a plurality of uniformly arranged mounting units, and the mounting units are provided with threaded holes for mounting mass spectrometer components. The mounting units in the same column are fixed on the lower bottom basket through the fixing rods, and when the fixing rods are not fixed, the single mounting unit can be taken out of the lower bottom basket; according to the utility model, components can be directly arranged on the mounting units through the threaded holes of the mounting units, the corresponding components and the mounting units are directly taken out from the lower bottom basket together for maintenance or debugging, and the components and the mounting units can be directly put back in the same way after the debugging is finished, so that the mounting units are locked by the fixing rods and then reset is completed; the operation is simple; when the components need to be taken down for maintenance and replacement, no other components are used for blocking, and meanwhile, the risk that the components fall off is avoided, so that the bolts are more convenient and faster to unload.

Description

TECHNICAL FIELD

[0001] The utility model relates to mass spectrometer equipment field, specifically provide a mass spectrum detector shell and mass spectrum detector. BACKGROUND

[0002] Mass spectrum detector is an instrument for separating and detecting different isotopes, that is, according to the principle that charged particles can be deflected in electromagnetic field, it separates and detects the composition of matter according to the mass difference of atoms, molecules or molecular fragments. Using this principle, mass spectrum detector is also used to detect the sealing property of lithium ion battery in high vacuum environment, and can qualitatively and quantitatively detect the electrolyte flowing out of the detection object and display the leakage rate.

[0003] With the development of mass spectrum detector, its portability becomes a development trend, and the components such as pump body, gas path and detection unit in mass spectrum detector are miniaturized and modularized arranged in a base. These components are usually connected by bolts on the bottom surface of the base, and the bolts are arranged from top to bottom. However, due to the relatively compactness between the components, there is not enough space for the screwdriver to enter for disassembly at the bolt connection of some components, so the blocking components need to be disassembled to rotate the connecting bolt of the target component. In the prior art, the bolt head is arranged on the bottom surface of the base, and the bolt is arranged from bottom to top. Although the corresponding bolt of the component can be directly disassembled from the outside, it is still inconvenient to disassemble due to the downward arrangement of the bolt head on the bottom surface of the base, and the base needs to be turned over. However, after removing the bolt, the corresponding component will directly fall off, which is easy to collide and damage. Therefore, there is an urgent need for a mass spectrometer shell and mass spectrometer which can facilitate the disassembly of internal components. SUMMARY

[0004] The utility model provides a mass spectrum detector shell and mass spectrum detector to solve the inconvenient maintenance and disassembly of internal components of the portable small volume gas leak detection equipment in the prior art.

[0005] The technical scheme of the utility model is as follows:

[0006] A mass spectrum detector shell comprises a lower bottom basket and an upper shell cover, the inner bottom of the lower bottom basket is provided with a mounting base, the mounting base is composed of a plurality of uniformly arranged mounting units, the mounting units are provided with threaded holes for mounting mass spectrometer components, and the mounting units in the same column are fixed on the lower bottom basket by a fixing rod. When the fixing rod is cancelled, the mounting units can be taken out of the lower bottom basket.

[0007] In this scheme, components can be directly arranged on the mounting unit through the threaded hole of the mounting unit, and arranged on one or more mounting units according to the mounting position and volume of different components, and since the mounting units are independent of each other, when a component needs to be removed, the corresponding component can be directly removed from the lower basket together with the mounting unit by releasing the locking of the fixing rod, and maintenance or debugging can be directly performed, and after debugging is completed, the component and the mounting unit can be directly returned to the original position, and the installation is completed after the fixing rod locks each mounting unit, which is simple to operate. When the component needs to be removed for maintenance and replacement, the target component removed together with the mounting unit is not blocked by other components, and there is no risk of component falling, so that the removal of the bolt is more convenient and fast.

[0008] Preferably, the mounting unit comprises a base plate, vertical bent plates are arranged on both sides of the base plate, the fixing rod passes through the two vertical bent plates, and a reinforcing rib plate parallel to the vertical bent plates is arranged in the middle of the bottom of the base plate, so that the cross section of the mounting unit is in an "E" shape.

[0009] In this scheme, the mounting unit is arranged in a plate structure, which can effectively reduce the weight of the mass spectrometer shell and improve the portability of the finished device. Meanwhile, the vertical bent plate together with the reinforcing rib plate as the right angle of the base plate can make the mounting unit with components placed more stably in the lower basket.

[0010] Preferably, a plurality of threaded holes are uniformly arranged on the base plate. The plurality of threaded holes can adapt to components of different models and specifications, and the position of the component can be adjusted by being arranged in different threaded holes when the component is mounted on the mounting unit.

[0011] Preferably, notches are correspondingly arranged on the vertical bent plates and the reinforcing rib plates on both sides of the base plate, the fixing rod is arranged in the mounting unit through the notches, and the fixing rod can be radially removed from the mounting unit through the notches. This scheme is a fixing structure for the fixing rod to fix the mounting unit. When the mounting units are all arranged in the lower basket, the mounting units abut each other and only have vertical freedom, and by arranging the fixing rod in the mounting unit, the positioning of the mounting unit can be completed and the deviation of the mounting unit can be avoided. Meanwhile, when the fixing rod is arranged in the mounting unit, the fixing rod can be slid out of the mounting unit through the notches, canceling the vertical limitation of the mounting unit, and thus the mounting unit can be removed from the lower basket.

[0012] In the prior art, the components of portable mass spectrometers are relatively compact, preventing a good internal air duct from forming. Consequently, heat generated by the pump during operation cannot be promptly discharged. To this end, the mounting base preferably further comprises a heat dissipation and air outlet layer disposed between the inner bottom of the lower basket and the mounting unit. The air outlet layer comprises an air duct support plate, the upper surface of which is evenly provided with air outlet holes. A centrifugal fan is disposed at one end of the air duct support plate to deliver air into the air duct.

[0013] In this solution, the centrifugal fan is a sheet-like structure that can be set parallel to the bottom surface of the lower basket. The air outlet is perpendicular to the air inlet. Cold air is sent into the heat dissipation outlet layer through the centrifugal fan and output from the air outlet of the air duct support plate. Cooling is carried out from bottom to top, which complies with the thermodynamic law of upward movement of hot air to achieve better heat dissipation effect.

[0014] Preferably, the surface of the air duct support plate is provided with rubber buffer strips corresponding to the vertical bent plates and reinforcing rib plates of the installation unit.

[0015] In this solution, the rubber buffer strip is set at the contact position between the vertical bent plate and reinforcing rib plate of the installation unit and the air duct support plate. While providing support, it can also provide a certain degree of buffering and shock absorption, thereby reducing the vibration and noise generated by the operation of various components.

[0016] Preferably, the fixing rod extends beyond the lower basket at both ends, and is secured with a stopper located outside the lower basket. Openings are provided on both sides of the lower basket corresponding to the notches in the base plate. The fixing rod extending beyond the lower basket facilitates external unlocking of the mounting unit by an operator. The stopper also prevents the fixing rod from sliding axially, preventing the mounting unit from being partially unlocked.

[0017] Since the mounting units need to be able to be taken out and placed separately, when the mounting units are set in the lower bottom basket, there will inevitably be gaps between each other. The components will shake due to the existence of the gaps during operation, thereby affecting the detection accuracy of the finished device. To solve this problem, preferably, the limiting portion at one end of the fixing rod is a tightening block, and the tightening block is dumbbell-shaped, one end of the tightening block is arranged inside the lower bottom basket, and the other end is arranged outside the lower bottom basket, and the tightening block is threadedly connected to the fixing rod, and by rotating the tightening block, one end of the tightening block is pressed against the mounting unit.

[0018] In this solution, the tightening block is rotated on the outside of the lower bottom basket so that one end of the tightening block presses against the mounting unit, thereby pressing the mounting units in a row against each other, thereby reducing the gap and also fixing the fixing rod to prevent the fixing rod from being accidentally touched.

[0019] Preferably, the single mounting unit is provided with two fixing rods, and the notches on the vertical bent plates and the reinforcing rib plates on both sides of the base plate are symmetrically arranged.

[0020] Preferably, the centrifugal fan is arranged close to the front end of the lower bottom basket, and the air inlet of the centrifugal fan is communicated with the bottom of the lower bottom basket.

[0021] The utility model discloses the beneficial effects of:

[0022] The utility model discloses can directly set up component through the threaded hole of mounting unit on mounting unit, according to the installation position and volume of different components and set up on one or more mounting units, and because mounting unit is independent between each other, when needing to unload certain component, can directly take out corresponding component and mounting unit from lower bottom basket through the locking of fixed rod, directly can maintain or debug, after the debugging end, can also directly put back component and mounting unit original road, makes fixed rod lock each mounting unit after, has completed installation, and the operation is simple. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0024] Figure 1 It is the three-dimensional schematic view of the utility model;

[0025] Figure 2 It is the split schematic view of the mounting base of the utility model;

[0026] Figure 3 It is the cross-sectional schematic view of the mounting base of the utility model;

[0027] Figure 4 It is the schematic view of the air cooling and air outlet layer of the utility model.

[0028] In the above drawings, the corresponding reference signs are as follows:

[0029] 1 - lower bottom basket, 2 - upper shell cover, 21 - heat dissipation port, 3 - mounting base, 31 - mounting unit, 311 - threaded hole, 312 - base plate, 313 - reinforcing rib plate, 314 - notch, 32 - fixing rod, 321 - limiting part, 322 - screwing block, 323 - first rubber pad, 324 - second rubber pad, 33 - heat dissipation air outlet layer, 331 - air duct support plate, 332 - air outlet hole, 333 - centrifugal fan, 334 - rubber buffer strip. DETAILED DESCRIPTION

[0030] The technical solutions of the present application are clearly and completely described by the specific implementation of the embodiments of the present application in combination with the drawings.

[0031] Embodiment one:

[0032] A mass spectrometer shell, as shown in Figure 1 , includes a lower bottom basket 1 and an upper shell cover 2, the inner bottom of the lower bottom basket 1 is provided with a mounting base 3, the mounting base 3 is composed of a plurality of uniformly arranged mounting units 31, the mounting units 31 are provided with threaded holes 311 for mounting mass spectrometer components, the mounting units 31 in the same column are fixed on the lower bottom basket 1 by a fixing rod 32, when the fixing rod 32 is removed, the single mounting unit 31 can be taken out from the lower bottom basket 1.

[0033] Specifically, as shown in Figure 2 and Figure 3 , the mounting unit 31 is a mounting plate provided with vertical bent plates on both sides, the middle of the bottom of the base plate 312 is provided with a reinforcing rib plate 313 parallel to the vertical bent plates, and the cross section is in the shape of "E". The upper surfaces of the vertical bent plates are uniformly provided with a plurality of threaded holes 311. Different mounting plates with different numbers and sizes are provided according to the model specifications of different mass spectrometers, and in this embodiment, 4 rows and 3 columns of mounting units 31 are provided.

[0034] The fixing rod 32 is a long circular rod, the two ends of the fixing rod 32 pass through the two sides of the lower bottom basket 1, the fixing rod 32 is fixed with a limiting part 321 at the two ends, and the limiting part 321 is arranged outside the lower bottom basket 1. Avoiding the fixing rod 32 from sliding along the axial direction, preventing the mounting part from being partially released.

[0035] Further, the structure for fixing the mounting unit 31 of the fixing rod 32 is that notches 314 are correspondingly provided on the vertical bent plates and the reinforcing rib plate 313 on both sides of the base plate 312, the fixing rod 32 is arranged on the mounting unit 31 through the notches 314, and the fixing rod 32 can be radially removed from the mounting unit 31 through the notches 314. This notch 314 is as shown in Figure 1 and Figure 2As shown, preferably provided with horizontal corner notches 314, when the mounting unit 31 needs to be removed, the fixing rod 32 needs to be moved horizontally along the notches 314 to the vertical notches 314, so that the mounting unit 31 can be moved upward, and the fixing rod 32 can be moved downward relative to the mounting unit 31, and then the fixing rod 32 is separated from the mounting unit 31.

[0036] It should be noted that when the mounting units 31 are all installed in the lower basket 1, the mounting units 31 abut each other and only have a vertical degree of freedom, and the fixing rod 32 is arranged in the mounting unit 31, which can complete the positioning of the mounting unit 31 and avoid the deviation of the mounting unit 31. At the same time, when the fixing rod 32 is arranged in the mounting unit 31, it can slide out of the mounting unit 31 through the notches 314, cancel the vertical limitation of the mounting unit 31, and then make the mounting unit 31 can be removed from the lower basket 1.

[0037] The components can be directly arranged on the mounting unit 31 through the threaded holes 311 of the mounting unit 31, and according to the installation position and volume of different components, one or more mounting units 31 are arranged, and since the mounting units 31 are independent of each other, when a component needs to be removed, the corresponding component can be directly removed from the lower basket 1 together with the mounting unit 31 by unlocking the fixing rod 32, and maintenance or debugging can be directly performed. After debugging, the component and the mounting unit 31 can be directly returned to the original position, and after the fixing rod 32 locks each mounting unit 31, the installation is completed, and the operation is simple. When the component needs to be removed for maintenance and replacement, the target component removed together with the mounting unit 31 is not blocked by other components, and there is no risk of falling of the component, so that the removal of the bolt is more convenient and fast.

[0038] Further, since the mounting unit 31 needs to be removed and placed separately, when the mounting unit 31 is arranged in the lower basket 1, there is inevitably a gap between the mounting units 31, and the components will shake due to the existence of the gap during work, which will affect the detection accuracy of the finished device. To solve this problem, as shown in the figure, Figure 3As shown, the limiting part 321 of one end of the fixed rod 32 is a screwing block 322, the screwing block 322 is dumbbell-shaped, one end of the screwing block 322 is arranged inside the lower basket 1, one end is arranged outside the lower basket 1, the screwing block 322 is threadedly connected on the fixed rod 32, by rotating the screwing block 322, one end of the screwing block 322 abuts against the mounting unit 31. And at the end of the screwing block 322 abutting against the mounting unit 31, a first rubber pad 323 is arranged, and a second rubber pad 324 is also arranged on the inner side of the lower basket 1 opposite to the screwing block 322, to avoid collision between the mounting unit 31 and the inner side of the lower basket 1 when abutting against the mounting unit 31. Specifically, by rotating the screwing block 322 outside the lower basket 1, one end of the screwing block 322 abuts against the mounting unit 31, and then the mounting units 31 in the column abut against each other, thereby reducing the gap, and also fixing the fixed rod 32, preventing the fixed rod 32 from being touched by mistake.

[0039] It should be noted that two fixed rods 32 are arranged through the single mounting unit 31, and the notches 314 on the vertical bent plates and the reinforcing rib plates 313 on both sides of the base plate 312 are symmetrically arranged. By supporting the mounting unit 31 by the two fixed rods 32, the mounting unit 31 can be placed more stably in the lower basket 1; and the symmetrically arranged notches 314 make the two fixed rods 32 move in opposite directions to release the locking of the mounting unit 31, which can further fix the mounting unit 31 and avoid slight deviation and shaking of the mounting unit 31.

[0040] Through this embodiment, the components are directly arranged on the mounting unit 31 through the threaded holes 311 of the mounting unit 31, and are arranged on one or more mounting units 31 according to the mounting position and volume of different components, and since the mounting units 31 are independent of each other, when a component needs to be unloaded, the corresponding component can be taken out from the lower basket 1 together with the mounting unit 31 by releasing the locking of the fixed rod 32, and maintenance or debugging can be directly performed, and after debugging, the component and the mounting unit 31 can be directly put back in the original way, and the installation is completed after the fixed rod 32 locks each mounting unit 31, which is simple to operate. When the component needs to be removed for maintenance and replacement, the target component taken out together with the mounting unit 31 is not blocked by other components, and there is no risk of falling of the component, so that the unloading of the bolt is more convenient and fast.

[0041] Embodiment two:

[0042] In the prior art, the components in the portable mass spectrometer are relatively compact, and a good air duct cannot be formed inside, so that the heat generated by the pump body during operation cannot be discharged in time. Therefore, on the basis of embodiment one, as shown in Figure 4As shown, the mounting base 3 further comprises a heat dissipation air outlet layer 33, which is arranged between the inner bottom of the lower basket 1 and the mounting unit 31, the air outlet layer comprises an air duct support plate 331, the upper surface of the air duct support plate 331 is uniformly provided with air outlet holes 332, and one end of the air duct support plate 331 is provided with a centrifugal fan 333 close to the front end of the lower basket 1, which blows air into the air duct. That is, in the future, the centrifugal fan 333 is arranged below the display panel, and the air inlet of the centrifugal fan 333 is communicated with the bottom of the lower basket 1, so that the space is fully utilized and the volume of the shell is reduced.

[0043] Specifically, the centrifugal fan 333 is a sheet structure, which can be arranged parallel to the bottom surface of the lower basket 1, the air outlet is perpendicular to the air inlet, cold air is blown into the heat dissipation air outlet layer 33 by the centrifugal fan 333, and then output from the air outlet of the air duct support plate 331, and the excess threaded holes 311 arranged on the mounting unit 31 can also be used for cold air flow. From bottom to top, the refrigeration conforms to the thermodynamic law of hot air upward movement, so that better heat dissipation effect is achieved, and the upper shell cover 2 is also provided with a heat dissipation port 21 for heat air exhaust.

[0044] Further, the surface of the air duct support plate 331 is provided with rubber buffer strips 334 corresponding to the vertical bending plate and the reinforcing rib plate 313 of the mounting unit 31. The rubber buffer strips 334 are arranged at the contact positions of the vertical bending plate and the reinforcing rib plate 313 of the mounting unit 31 and the air duct support plate 331, which not only supports but also has a certain degree of buffering and shock absorption effect, thereby reducing the vibration and noise generated by the operation of each component.

[0045] Embodiment three:

[0046] The mass spectrometer of the embodiment comprises a shell, and the internal elements are connected to the mounting unit 31 by bolts. The internal elements are installed on one or more mounting units 31 according to the actual size and shape, for example, the head and tail support columns of the quadrupole rod structure are respectively installed on two mounting units 31, the gas path module is arranged on multiple mounting units 31 due to its large size, and the vacuum pump is arranged on one mounting unit 31. Each mounting unit 31 is independent of the adjacent mounting unit 31, and the corresponding mounting unit 31 can be removed according to the actual demand, and then the target component can be directly removed.

[0047] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the utility model.

Claims

1. A mass spectrometer housing, characterized in that: The invention comprises a lower bottom basket (1) and an upper shell cover (2); the inner bottom of the lower bottom basket (1) is provided with a mounting base (3); the mounting base (3) is composed of a plurality of evenly arranged mounting units (31); the mounting units (31) are provided with threaded holes (311) for mounting mass spectrometer components; the mounting units (31) in the same row are fixed to the lower bottom basket (1) by fixing rods (32); when the fixing rods (32) are released, a single mounting unit (31) can be taken out of the lower bottom basket (1).

2. A mass spectrometer housing according to claim 1, characterized in that: The mounting unit (31) includes a base plate (312), vertical bent plates are provided on both sides of the base plate (312), the fixing rod (32) passes through the two vertical bent plates, and a reinforcing rib plate (313) parallel to the vertical bent plates is provided in the middle of the bottom of the base plate (312), so that the cross section of the mounting unit (31) is in an "E"-shaped structure.

3. A mass spectrometer housing according to claim 2, characterized in that: A plurality of threaded holes (311) are evenly arranged on the base plate (312).

4. A mass spectrometer housing according to claim 3, characterized in that: Notches (314) are correspondingly provided on the vertical bent plates and the reinforcing rib plates (313) on both sides of the base plate (312); the fixing rod (32) is passed through the notches (314) and is arranged on the mounting unit (31); the fixing rod (32) can be radially moved out of the mounting unit (31) through the notches (314).

5. The mass spectrometer housing according to claim 4, characterized in that: The mounting base (3) further comprises a heat dissipation air outlet layer (33), the heat dissipation air outlet layer (33) being arranged between the inner bottom of the lower bottom basket (1) and the mounting unit (31), the air outlet layer comprising an air duct support plate (331), the upper surface of the air duct support plate (331) being evenly provided with air outlet holes (332), and one end of the air duct support plate (331) being provided with a centrifugal fan (333) for sending air into the air duct.

6. The mass spectrometer housing according to claim 5, characterized in that: The surface of the air duct support plate (331) is provided with a rubber buffer strip (334) corresponding to the vertical bent plate and the reinforcing rib plate (313) of the installation unit (31).

7. The mass spectrometer housing according to claim 4, characterized in that: The two ends of the fixing rod (32) pass through the two sides of the lower bottom basket (1); the two ends of the fixing rod (32) are fixed with limiting portions (321); the limiting portions (321) are arranged outside the lower bottom basket (1); and openings are provided on both sides of the lower bottom basket (1) corresponding to the notches (314) of the base plate (312).

8. The mass spectrometer housing according to claim 7, characterized in that: The limiting portion (321) at one end of the fixing rod (32) is a tightening block (322), and the tightening block (322) is dumbbell-shaped. One end of the tightening block (322) is arranged inside the lower bottom basket (1), and the other end is arranged outside the lower bottom basket (1). The tightening block (322) is threadedly connected to the fixing rod (32), and by rotating the tightening block (322), one end of the tightening block (322) is pressed against the mounting unit (31).

9. The mass spectrometer housing according to claim 8, characterized in that: Two fixing rods (32) are passed through a single installation unit (31), and the notches (314) through which the two fixing rods (32) pass are symmetrically arranged.

10. A mass spectrometer, characterized in that: The invention comprises a mass spectrometer housing according to any one of claims 1 to 9, and also comprises internal components.

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