Mass spectrometer gas supply device

Abstract

The utility model discloses a gas supply device for a mass spectrometer, which belongs to the field of mass spectrometers and comprises a frame, a support base is fixedly mounted at the top of the inner side wall of the frame, connecting edges are arranged on two sides of the support base, one sides of the connecting edges are fixedly mounted on two sides of the inner side wall of the frame, and the other sides of the connecting edges are connected with the support base. Arched bases are fixedly installed on the two sides of the surface of one side of the support base, strip-shaped supports are movably connected to the outer arc faces of the arched bases in a sleeving mode, and the gas supply bottle is placed in the strip-shaped supports of the support base, a second nut rod is screwed down, and the gas supply bottle is hooped through a strap. The strip-shaped support and the strap can be disconnected only by unscrewing the first nut rod and the second nut rod, so that when a gas supply bottle can be efficiently replaced and new gas is supplemented, the downtime of an instrument can be shortened through efficient disassembly and assembly operation, and the device can be used in a high-throughput mass spectrometry laboratory. The gas supply bottle can be quickly replaced to ensure continuous operation of the instrument, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mass spectrometer technical field, specifically a mass spectrometer gas supply device. BACKGROUND

[0002] Mass spectrometer is the instrument that according to the mass-to-charge ratio of ion is analyzed after sample ionization. In this process, gas plays a vital role, for example, in ion source part, specific gas is needed to help the ionization of sample, for electron impact ion source, high-purity inert gas is needed to maintain the gas pressure in ion source, and as collision gas auxiliary ionization process, in mass analyzer part, such as quadrupole mass spectrometer, stable gas environment is also needed to ensure the stable transmission and accurate analysis of ion.

[0003] Now the gas supply system generally only has one gas cylinder to carry out gas supply for mass spectrometer when working, when the gas in the gas cylinder is consumed, the mass spectrometer needs to be stopped and the gas cylinder is replaced, and the operation of replacing the gas cylinder is more troublesome and time-wasting by adopting pull belt and bottom support to be tensioned and fixed, so as to reduce the working efficiency of mass spectrometer.

[0004] Therefore, the utility model provides a mass spectrometer gas supply device to solve the above problems. UTILITY MODEL CONTENT

[0005] (I) technical problem solved

[0006] The utility model provides a mass spectrometer gas supply device, aims at solving the problems, such as the existing adoption of pull belt and bottom support to be tensioned and fixed, not only occupies larger space, and the operation of replacing the gas cylinder is more troublesome and time-wasting, so as to reduce the working efficiency of mass spectrometer in the background art.

[0007] (II) technical scheme

[0008] To realize the above-mentioned purpose, the utility model provides the following technical scheme: including frame, the inner side wall top of frame is fixedly installed with support base, both sides of support base are equipped with connecting edge, one side of connecting edge is fixedly installed in both sides of frame inner side wall, one side surface of support base is fixedly installed with arched base on both sides, both sides of the bottom of arched base are equipped with hook end, the bottom hook end of arched base is connected on the surface of support base, the outer arc surface of arched base is movably sleeved with belt support, one end of the outer arc surface of belt support is equipped with arc hook end, the inner arc surface of belt support is equipped with arc slot, the arc slot of belt support is movably sleeved with arched base, and the arc hook end of one end of belt support is movably connected with U-shaped piece.

[0009] As a preferred technical solution of the present application, the upper surface of the U-shaped piece is provided with an extension end on both sides, the extension end of the U-shaped piece is provided with a through hole, the inner arc surface of the through hole is threadedly connected with a first nut rod, one end of the first nut rod is connected with a mounting block, and a threaded hole A is formed in the middle of one side of the mounting block.

[0010] As a preferred technical solution of the present application, the inner arc surface of the threaded hole A is threadedly connected with the first nut rod, the outer arc surface of the mounting block is fixedly installed with a band, the inner arc surface of the band is movably connected with a rubber layer, and the same arc-shaped groove is formed in the top of the rubber layer.

[0011] As a preferred technical solution of the present application, the end of the band away from the mounting block is provided with a connecting block, and a threaded hole B is formed in the middle of the upper surface of the connecting block.

[0012] As a preferred technical solution of the present application, the top of one side surface of the arc-shaped base is provided with a slot hole, one end of the second nut rod is connected to the outside of the connecting block and penetrates and connects the surface of the slot hole, the band is connected and adapted with the arc-shaped base, the outer arc surface of the second nut rod is provided with a spring at the bottom, and the inner arc surface of the band is connected with a gas cylinder.

[0013] As a preferred technical solution of the present application, the inner side wall of the frame is fixedly installed with a gas cylinder support at the bottom through bolts, the gas cylinder support is provided with side wing plates on the front and rear sides, and the two sides of the gas cylinder support close to the side wing plates are provided with support bottom plates.

[0014] As a preferred technical solution of the present application, a bearing cavity groove is arranged between the side wing plate and the support bottom plate, the bearing cavity groove is movably connected with the gas cylinder base, the surface of the gas cylinder is connected with a gas pipe, and one end of the gas pipe away from the gas cylinder is connected with a mass spectrometer body.

[0015] (Three) beneficial effects

[0016] 1. By placing the gas cylinder in the strip-shaped support of the support base, tightening the second nut rod, and tightening the gas cylinder with the band, when it is necessary to replace, only the first nut rod and the second nut rod need to be loosened to disconnect the strip-shaped support and the band, so that the gas cylinder can be efficiently replaced, and when new gas is supplied, efficient disassembly and installation operation can reduce instrument downtime, in a high-throughput mass spectrometry laboratory, rapid replacement of the gas cylinder can ensure the continuous operation of the instrument and improve work efficiency.

[0017] 2. The gas supply bottle can be inserted into the bearing cavity groove through the spherical surface of the gas supply bottle, so that the stable placement state is very important to ensure the stability of the gas supply. When the gas supply bottle is in the supporting bottom plate and kept vertical, the gas in the gas supply bottle can be supplied to the mass spectrometer body at a stable pressure and flow rate, and the limiting of the supporting bottom plate helps to maintain stable gas supply and ensure that it remains upright under various interference factors. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall structure schematic diagram of a mass spectrometer gas supply device.

[0019] Figure 2 It is an overall structure schematic diagram of a mass spectrometer gas supply device.

[0020] Figure 3 It is a supporting bottom plate structure schematic diagram of a mass spectrometer gas supply device.

[0021] Figure 4 It is a disassembled structure schematic diagram of a mass spectrometer gas supply device.

[0022] Figure 5 It is a gas supply bottle and mass spectrometer body connection plane structure schematic diagram of a mass spectrometer gas supply device.

[0023] In the drawings:

[0024] 1. frame; 2. support base; 201. connecting edge; 3. arched base; 4. belt support; 401. arc-shaped hook end; 5. U-shaped piece; 6. first nut rod; 7. mounting block; 8. threaded hole A; 9. belt; 10. rubber layer; 11. connecting block; 12. threaded hole B; 13. second nut rod; 14. slot hole; 15. spring; 16. gas supply bottle; 17. gas bottle support; 18. side wing plate; 19. supporting bottom plate; 20. bearing cavity groove; 21. gas pipe; 22. mass spectrometer body. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] The present application provides a mass spectrometer gas supply device, such as Figures 1 to 5As shown, including frame 1, the inner side wall top fixed mounting of frame 1 is provided with support base 2, both sides of support base 2 are provided with connecting edge 201, one side of connecting edge 201 is fixedly installed on both sides of the inner side wall of frame 1, both sides of the surface of one side of support base 2 are fixedly installed with arch base 3, both sides of the bottom of arch base 3 are provided with hook end, the bottom hook end of arch base 3 is connected to the surface of support base 2, the outer arc surface of arch base 3 movably sleeves with belt support 4, the outer arc surface of one end of belt support 4 is provided with arc hook end 401, the inner arc surface of belt support 4 is provided with arc groove, the arc groove of belt support 4 movably sleeves with arch base 3, the arc hook end 401 of one end of belt support 4 movably connects with U-shaped piece 5, both sides of the upper surface of U-shaped piece 5 are provided with extension end, the extension end of U-shaped piece 5 is provided with through hole, the inner arc surface of through hole is screw connected with first nut rod 6, one end of first nut rod 6 penetrates and connects with mounting block 7, one side of the middle of mounting block 7 is provided with threaded hole A8, the inner arc surface of threaded hole A8 is screw connected with first nut rod 6, the outer arc surface of mounting block 7 is fixedly installed with hoop 9, the inner arc surface of hoop 9 movably connects with rubber layer 10, the top of rubber layer 10 is provided with the same arc groove, one end of hoop 9 away from mounting block 7 is provided with connecting block 11, the upper surface of connecting block 11 is provided with threaded hole B12 in the middle, the inner arc surface of threaded hole B12 is screw connected with second nut rod 13, the top of one side surface of arch base 3 is provided with slot hole 14, one end of second nut rod 13 penetrates and connects to the outside of connecting block 11, and penetrates and connects to the surface of slot hole 14, hoop 9 is connected and adapted with arch base 3, the outer arc surface of second nut rod 13 is provided with spring 15, the inner arc surface of hoop 9 penetrates and connects with gas cylinder 16.

[0027] When the gas in a gas cylinder 16 is insufficient, the gas flow sensor will send a signal to the electromagnetic control valve, and the control processor will close the electromagnetic control valve corresponding to the gas cylinder 16 with insufficient gas and open the electromagnetic control valve corresponding to the gas cylinder 16 with more gas, thereby supplying gas to the mass spectrometer body 22.

[0028] Meanwhile, when the gas cylinder is installed in the frame 1, in order to prevent the gas supply cylinder 16 from moving in the bearing cavity groove 20 of the frame 1, a non-slip layer is arranged on the circular arc concave surface of the belt-shaped support 4, and the friction between the belt-shaped support 4 and the gas supply cylinder 16 is increased. In order to avoid scratching the outer surface of the gas supply cylinder 16 by the non-slip layer on the circular arc concave surface of the belt-shaped support 4 and the hoop band 9, and further increase the friction between the bracket base 2 and the hoop band 9, a rubber layer 10 is covered on the outer surface of the non-slip layer and the circular arc concave surface of the hoop band 9. The rubber layer 10 can simultaneously improve the friction between the hoop band 9 and the belt-shaped support 4 and the gas supply cylinder 16, further reduce the possibility of the gas supply cylinder 16 moving in the belt-shaped support 4, and buffer the vibration of the gas supply cylinder 16, thereby improving the safety of the gas supply cylinder 16. A spring 15 is sleeved on the second nut rod 13, and the spring 15 is pressed between the bolt head of the second nut rod 13 and the connecting block 11 at the end of the hoop band 9. After the gas supply cylinder 16 is placed in the belt-shaped support 4 of the bracket base 2, the second nut rod 13 is tightened, and the gas supply cylinder 16 is clamped by the hoop band 9.

[0029] When replacement is needed, the connection between the belt-shaped support 4 and the hoop band 9 can be disconnected by loosening the first nut rod 6 and the second nut rod 13, so that the gas supply cylinder 16 can be efficiently replaced.

[0030] The inner side wall bottom of the frame 1 is fixedly installed with a gas cylinder support 17, the front and rear sides of the gas cylinder support 17 are each provided with a side wing plate 18, the two sides of the gas cylinder support 17 close to the side wing plates 18 are each provided with a supporting bottom plate 19, and the side wing plates 18 and the supporting bottom plates 19 are jointly provided with a bearing cavity groove 20. The bearing cavity groove 20 is movably connected with the bottom of the gas supply cylinder 16. The surface of the gas supply cylinder 16 is connected with a gas pipe 21, and the end of the gas pipe 21 away from the gas supply cylinder 16 is connected with a mass spectrometer body 22.

[0031] Furthermore, the bottom end of the gas supply cylinder 16 is placed on the gas cylinder support 17, and the side wing plates 18 on both sides and the supporting bottom plates 19 on both sides limit the circumferential side of the gas supply cylinder 16. Meanwhile, the spherical surface of the gas supply cylinder 16 can be inserted into the bearing cavity groove 20, so that the stable placement state is also very important for ensuring the stability of the gas supply. When the gas supply cylinder 16 is in the supporting bottom plate 19 and remains vertical, the gas in the gas supply cylinder 16 can be supplied to the mass spectrometer body 22 at a stable pressure and flow rate, and the limiting of the supporting bottom plate 19 helps to maintain stable gas supply and ensures that it remains upright under various interference factors.

[0032] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A mass spectrometer gas supply apparatus comprising a frame (1), characterised in that: The inner side wall top of the frame (1) is fixedly provided with a support base (2), both sides of the support base (2) are provided with a connecting edge (201), one side of the connecting edge (201) is fixedly provided on both sides of the inner side wall of the frame (1), both sides of the surface of the support base (2) are fixedly provided with an arched base (3), both sides of the bottom of the arched base (3) are provided with a hook-shaped end, the hook-shaped end of the bottom of the arched base (3) is connected to the surface of the support base (2), the outer arc surface of the arched base (3) is movably sleeved with a belt-shaped support (4), one end of the outer arc surface of the belt-shaped support (4) is provided with an arc-shaped hook end (401), the inner arc surface of the belt-shaped support (4) is provided with an arc-shaped groove, the arc-shaped groove of the belt-shaped support (4) is movably sleeved with the arched base (3), and the arc-shaped hook end (401) of one end of the belt-shaped support (4) is movably connected with a U-shaped piece (5).

2. A mass spectrometer gas supply apparatus as claimed in claim 1, wherein: Both sides of the upper surface of the U-shaped piece (5) are provided with an extension end, the extension end of the U-shaped piece (5) is provided with a through hole, the inner arc surface of the through hole is threadedly connected with a first nut rod (6), one end of the first nut rod (6) is penetratingly connected with a mounting block (7), and a threaded hole A (8) is formed in the middle of one side of the mounting block (7).

3. A mass spectrometer gas supply apparatus as claimed in claim 2, wherein: The inner arc surface of the threaded hole A (8) is threadedly connected with the first nut rod (6), the outer arc surface of the mounting block (7) is fixedly provided with a hoop (9), the inner arc surface of the hoop (9) is movably connected with a rubber layer (10), and the top of the rubber layer (10) is provided with the same arc-shaped groove.

4. A mass spectrometer gas supply apparatus as claimed in claim 3, wherein: One end of the hoop (9) away from the mounting block (7) is provided with a connecting block (11), a threaded hole B (12) is formed in the middle of the upper surface of the connecting block (11), and the inner arc surface of the threaded hole B (12) is threadedly connected with a second nut rod (13).

5. A mass spectrometer gas supply apparatus as claimed in claim 4, wherein: A slot hole (14) is formed in the top of the surface of the arched base (3), one end of the second nut rod (13) is penetratingly connected to the outside of the connecting block (11) and penetratingly connected to the surface of the slot hole (14), the hoop (9) is connected and matched with the arched base (3), the outer arc surface of the second nut rod (13) is provided with a spring (15), and the inner arc surface of the hoop (9) is penetratingly connected with a gas cylinder (16).

6. A mass spectrometer gas supply apparatus as claimed in claim 5, wherein: The bottom of the inner side wall of the frame (1) is fixedly provided with a gas cylinder support (17) through bolts, both sides of the gas cylinder support (17) are provided with side wing plates (18), and both sides of the gas cylinder support (17) close to the side wing plates (18) are provided with support bottom plates (19).

7. A mass spectrometer gas supply apparatus as claimed in claim 6, wherein: A bearing cavity groove (20) is arranged between the side wing plates (18) and the support bottom plates (19), the bearing cavity groove (20) is movably lapped with the bottom of the gas cylinder (16), the surface of the gas cylinder (16) is connected with a gas pipe (21), and one end of the gas pipe (21) away from the gas cylinder (16) is connected with a mass spectrometer body (22).

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