CN112908832A

CN112908832A - Mass spectrum interface device applied to mass spectrometer

Info

Publication number: CN112908832A
Application number: CN202110392882.0A
Authority: CN
Inventors: 宣兆康; 章贤骏; 方涌; 翟致超
Original assignee: Hangzhou Anyu Technologies Co ltd
Current assignee: Hangzhou Anyu Technologies Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-06-04
Also published as: CN114068291B; CN114068291A

Abstract

The invention discloses a mass spectrum interface device applied to a mass spectrometer, which comprises a mass spectrometer main body, and a mass spectrum internal vacuum region and an ion source adjusting region which are arranged in the mass spectrometer main body, wherein the mass spectrum internal vacuum region is provided with a functional sealing mechanism for pre-sealing the mass spectrum internal vacuum region to prevent air intake, the ion source adjusting region is provided with a displacement sealing mechanism for performing secondary sealing on the mass spectrum internal vacuum region and preventing the functional sealing mechanism from loosening, the mass spectrum interface device applied to the mass spectrometer is different from the prior art, so that when a worker replaces the ion source, the functional sealing mechanism performs pre-sealing, and then the displacement sealing mechanism is matched with the functional sealing mechanism to prevent a sliding plate from loosening under the action of pressure difference at two sides and perform secondary sealing, and the abrasion of internal parts is reduced, the phenomenon that the vacuum area inside the mass spectrum enters air at the initial stage of ion source replacement is avoided, and the sealing effect is greatly improved.

Description

Mass spectrum interface device applied to mass spectrometer

Technical Field

The invention relates to the technical field of mass spectrometers, in particular to a mass spectrometer interface device applied to a mass spectrometer.

Background

In the continuous operation process of the online mass spectrometer, the ion source is easy to damage and needs to be replaced, disassembled and assembled so as to be convenient for maintenance or replacement of the ion source. In the past, when the ion source is disassembled and replaced, power must be cut off; the vacuum state in the mass spectrum is destroyed in the process of disassembly and replacement, so that the pressure in the mass spectrum is recovered to normal pressure; after the ion source is installed again, the mass spectrometer is vacuumized again, the time consumption of the vacuumizing process is long, and the use of the online mass spectrometer in production is seriously influenced.

In order to solve the above problems, in the chinese invention patent with publication number CN105047518B, a mass spectrometer interface device applied to a mass spectrometer is disclosed, which comprises a pipeline with openings at two ends, a partition plate is arranged in the pipeline, and a through blocking port is arranged at the center of the partition plate; the central part of the pressure plate is provided with a guide hole; the limiting assembly is fixed on the pressure plate and used for fixing the position of the adjusting rod; one end of the adjusting rod penetrates through the guide hole, and the end part of the adjusting rod is provided with a through hole; a screw rod with a plugging plate and a spring is arranged through the through hole, and the plugging plate is connected with the adjusting rod through the spring; the other end of the adjusting rod is fixed through a limiting component. The mass spectrum interface device disclosed by the invention realizes the disassembly and assembly of the ion source under the condition of reducing the damage degree of the vacuum state in the mass spectrum as much as possible. Moreover, after the ion source is replaced, only the vacuum of the area where the ion source is located needs to be extracted, the area is small in size, the vacuumizing time is obviously shortened, and the production efficiency is improved.

However, we find when in actual use, adjust the shutoff board through the bolt, not only the installation is comparatively inconvenient, and can't guarantee the interval between shutoff board and the baffle, if the interval is too big, the tensile volume that may have the spring under the pressure differential effect of both sides is not enough to make shutoff board and baffle contact, can't seal, if the interval undersize, can lead to shutoff board and baffle interference fit, the influence is adjusted the pole and is rotated, and then lead to the internals to appear wearing and tearing phenomenon, mass spectrometer life reduces, in addition, at the change ion source initial stage, the pressure differential of both sides is less relatively, can't stretch the spring, just also can't effectively seal, and then lead to the vacuum region to get into the air, for this reason, we provide a mass spectrum interface arrangement who is applied to the mass spectrometer.

Disclosure of Invention

The present invention is directed to a mass spectrometer interface device, which solves the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a mass spectrum interface device applied to a mass spectrometer comprises a mass spectrometer main body, and a mass spectrum internal vacuum area and an ion source adjusting area which are arranged in the mass spectrometer main body, wherein the mass spectrum internal vacuum area is provided with a functional sealing mechanism for pre-sealing the mass spectrum internal vacuum area to prevent air inflow, the ion source adjusting area is provided with a displacement sealing mechanism for performing secondary sealing on the mass spectrum internal vacuum area and preventing the functional sealing mechanism from loosening, so that the mass spectrum interface device is different from the prior art, when a worker replaces the ion source, the worker performs pre-sealing through the functional sealing mechanism and then is matched with the displacement sealing mechanism to prevent a sliding plate from loosening under the action of differential pressure on two sides and perform secondary sealing, the mutual abrasion of internal parts is reduced, and the phenomenon that the ion source replaces the initial mass spectrum internal vacuum area to enter air is avoided, greatly improving the sealing effect.

Preferably, function sealing mechanism is including fixing the supporting seat in the regional one side of the inside vacuum of mass spectrum, rotate through the bearing between mass spectrograph main part and the supporting seat and install the main shaft that both ends all extend to the outside, the main shaft extends to mass spectrograph main part outside one end and is fixed with the knob, and the gear is installed to the opposite side, logical groove has been seted up at mass spectrograph main part middle part, it is used for conveniently carrying out the function seal assembly who seals in advance when changing the ion source to lead to inslot, through function sealing mechanism, then guarantees to seal in advance the inside vacuum region of mass spectrum.

Preferably, function seal assembly includes a plurality of evenly install at the locating plate that leads to inslot portion, and is a plurality of locating plate end fixing has the hollow tube, evenly set up a plurality of sliding trays that are used for making things convenient for the aversion to adjust on the hollow tube, be provided with in the sliding tray and be used for cooperating with the gear and use the regulating part that carries out the regulation, through function seal assembly, then guarantee to prevent that the inside vacuum area of mass spectrum from admitting air, influence later stage normal work.

Preferably, the regulating part comprises a shifting plate which is slidably connected in a plurality of sliding grooves, a rack which is matched with the gear for use is fixed on one side of the shifting plate close to the gear, a shifting sliding groove which is communicated with the through groove is formed in the middle of the mass spectrometer main body, a plurality of sliding plates which are convenient to shift synchronously are slidably arranged in the shifting sliding groove, a convex block and a groove which are used for providing sealing effect are respectively arranged on two sides of each sliding plate, rotating seats which are matched for use are arranged on the shifting plate and the sliding plates, and a plurality of rotating seats which are arranged on the shifting plate in any one of the rotating seats are connected with a deflection rod through a rotating shaft between each rotating seat and the rotating seat on the adjacent sliding plate in a rotating mode.

Preferably, aversion sealing mechanism includes and installs the mounting panel of ion source regulatory region in the mass spectrograph main part through the bolt, the mounting panel bottom is fixed with the connecting plate, and the middle part slides and runs through there is the aversion axle, the mounting panel top is provided with the elastic component that is used for convenient location, aversion axle bottom is provided with and is used for carrying out the auxiliary assembly that secondary seal to the inside vacuum region of mass spectrum, through aversion sealing mechanism, then guarantees to have reduced the wearing and tearing of internals each other, has avoided the ion source to change the phenomenon that the inside vacuum region of initial stage mass spectrum got into the air, has greatly improved sealed effect.

Preferably, the elastic part comprises a fixed pipe fixed at the top of the mounting plate, a push-pull rod is slidably connected in the fixed pipe, a positioning column is fixed on one side, close to the displacement shaft, of the push-pull rod, a return spring is sleeved on the outer side of the push-pull rod, two ends of the return spring are respectively in contact with the fixed pipe and the positioning column, a clamping groove matched with the positioning column for use is formed in the displacement shaft, and the displacement shaft is positioned in the ion source replacement process through the elastic part.

Preferably, the auxiliary assembly comprises a corrugated pipe which is sleeved on the outer side of the displacement shaft and has two ends respectively fixed to the mounting plate and the displacement shaft, the connecting plate and the displacement shaft are respectively provided with a rotating rod and a sealing plate in a rotating mode through rotating shafts, the end portion of each rotating rod is provided with a sealing plate through rotating the rotating shaft, the sealing plate is provided with an aligning piece for preventing the functional sealing mechanism from loosening, and the auxiliary assembly is used for guaranteeing that the sliding plate is prevented from loosening under the action of pressure difference between two sides and performing secondary sealing.

Preferably, the aligning member includes two slide rails fixed on one side of the connecting plate near the through groove, a slide block is connected in the slide rail in a sliding manner, a plurality of idler wheels used for facilitating sliding adjustment are mounted on the slide block, the end portions of the idler wheels are fixed with telescopic rods fixed on the sealing plate, a top block is fixed on one side of the sealing plate near the sliding plate, notches matched with the top block for use are formed in the sliding plate, the sealing plate is guaranteed to be always in a vertical state through the aligning member, the top block is convenient to be matched with the notches, and the sealing performance is further improved.

Compared with the prior art, the invention has the beneficial effects that:

the ion source sealing device is different from the prior art, so that when workers replace an ion source, the functional sealing mechanism is used for sealing in advance, and then the displacement sealing mechanism is matched with the functional sealing mechanism to prevent the sliding plate from loosening under the action of pressure difference between two sides, secondary sealing is carried out, abrasion among internal parts is reduced, the phenomenon that air enters a mass spectrum internal vacuum region at the initial stage of ion source replacement is avoided, and the sealing effect is greatly improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of another orientation of the present invention shown in FIG. 1;

FIG. 3 is a schematic view of the invention in partial cross-section of FIG. 2;

FIG. 4 is a schematic view of a partial cross-sectional view of a functional seal mechanism according to the present invention;

FIG. 5 is a schematic view of a portion of the displacement seal mechanism of the present invention;

FIG. 6 is a schematic view of another embodiment of the present invention;

FIG. 7 is an enlarged view of the area A of the present invention;

FIG. 8 is an enlarged view of the region B of the present invention;

FIG. 9 is an enlarged view of the region C of the present invention;

FIG. 10 is an enlarged view of the structure of the area D of the present invention;

FIG. 11 is an enlarged view of the region E of the present invention.

In the figure: 1-a mass spectrometer body; 2-mass spectrometry of the internal vacuum region; 3-an ion source modulation region; 4-a functional sealing mechanism; 5-displacing the sealing mechanism; 6-a support seat; 7-a main shaft; 8-a knob; 9-gear; 10-through groove; 11-a functional seal assembly; 12-a positioning plate; 13-hollow pipe; 14-a sliding groove; 15-an adjustment member; 16-a shifting plate; 17-a shifting chute; 18-a sliding plate; 19-a bump; 20-grooves; 21-a rotating seat; 22-a deflection rod; 23-mounting a plate; 24-a connecting plate; 25-a displacement axis; 26-an elastic member; 27-an auxiliary component; 28-a stationary tube; 29-a push-pull rod; 30-a positioning column; 31-a return spring; 32-card slot; 33-a bellows; 34-rotating rods; 35-a sealing plate; 36-aligning member; 37-a slide rail; 38-a slide block; 39-a roller; 40-a telescopic rod; 41-a top block; 42-notches; 43-rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-11, the present invention provides a technical solution: a mass spectrum interface device applied to a mass spectrometer comprises a mass spectrometer main body 1, and a mass spectrum internal vacuum region 2 and an ion source adjusting region 3 which are arranged in the mass spectrometer main body 1, wherein the mass spectrometer main body 1 is conventional equipment and is not described herein;

the ion source adjusting region 3 is provided with a displacement sealing mechanism 5 which is used for carrying out secondary sealing on the mass spectrum internal vacuum region 2 and preventing the functional sealing mechanism 4 from loosening, when the ion source adjusting region 2 is used, a worker rotates a knob 8 to drive a spindle 7 to rotate, the spindle 7 drives a gear 9 to rotate, the gear 9 drives a rack 43 matched with the gear to displace towards one side far away from the through groove 10 and drives a displacement plate 16 to slide in a displacement chute 17, and then under the matching of a rotating seat 21 and a deflection rod 22, a plurality of sliding plates 18 are driven to synchronously slide towards the center of the through groove 10 and are clamped in a step groove at the end part of a hollow tube 13 to seal the through groove 10, and meanwhile, a bump 19 between two adjacent sliding plates 18 is matched with a groove 20, the positioning plates 12 are respectively fixed between the gaps of two adjacent sliding plates 18 to further improve the sealing effect, then the push-pull rod 29 is pulled to drive the positioning column 30 to move backwards, the return spring 31 is compressed to cancel the positioning of the displacement shaft 25, then the displacement shaft 25 is pressed downwards to drive the corrugated pipe 33 to extend to prevent air from entering the interior, meanwhile, the displacement shaft 25 drives the two rotating rods 34 to rotate and drive the sealing plate 35 arranged at the end part to move, until the sealing plate 35 is contacted with the through groove 10, the top block 41 on the sealing plate 35 is matched with the notch 42 on the sliding plate 18 to realize secondary sealing, the top block 41 is provided with a chamfer angle for convenient matching use, in the process, under the matching of the sliding rail 37, the sliding block 38, the roller 39 and the telescopic rod 40, the sealing plate 35 is ensured to be always in a vertical state, then the push-pull rod 29 is loosened, under the effect of reset spring 31, ejecting reference column 30, with draw-in groove 32 cooperation, realize the location to aversion axle 25, avoid not hard up at the change in-process, in addition, be provided with the arch of using with the cooperation of mass spectrograph main part 1 on the mounting panel 23, and all be provided with the sealed pad that is used for improving sealed effect between the gap of contact, make the staff when changing ion source during operation, through function sealing mechanism 4, seal in advance, then cooperate with it through aversion sealing mechanism 5, prevent that sliding plate 18 from appearing not hard up under the effect of both sides pressure differential, and secondary seal, the wearing and tearing between each other of internals have been reduced, the phenomenon that ion source change initial stage mass spectrum inside vacuum region 2 got into the air has been avoided, sealed effect has greatly been improved.

The functional sealing mechanism 4 comprises a supporting seat 6 fixed on one side of a vacuum area 2 in the mass spectrometer, a main shaft 7 with two ends extending to the outer side is rotatably installed between a mass spectrometer main body 1 and the supporting seat 6 through a bearing, a knob 8 is fixed at one end of the main shaft 7 extending to the outer side of the mass spectrometer main body 1, a gear 9 is installed at the other end of the main shaft, a through groove 10 is formed in the middle of the mass spectrometer main body 1, a functional sealing component 11 for facilitating pre-sealing during ion source replacement is arranged in the through groove 10, when in use, a worker rotates the knob 8 to drive the main shaft 7 to rotate, the main shaft 7 drives the gear 9 to rotate, the gear 9 drives a rack 43 matched with the gear to shift to one side far away from the through groove 10 and drives a shifting plate 16 to slide in a shifting chute 17, and further drives a plurality of sliding plates 18 to synchronously, and the positioning plates 12 are respectively fixed between the gaps of the two adjacent sliding plates 18, so that the sealing effect is further improved, and the mass spectrum internal vacuum area 2 is pre-sealed.

The functional sealing assembly 11 comprises a plurality of positioning plates 12 which are uniformly arranged inside the through groove 10, a plurality of hollow tubes 13 are fixed at the end parts of the positioning plates 12, a plurality of sliding grooves 14 which are convenient to shift and adjust are uniformly formed in the hollow tubes 13, adjusting pieces 15 which are used for being matched with the gears 9 for use and adjusting are arranged in the sliding grooves 14, and when the functional sealing assembly is used, the positioning plates 12 are respectively fixed between the gaps of the two adjacent sliding plates 18, so that the sealing effect is further improved.

The adjusting part 15 comprises a shifting plate 16 which is slidably connected in a plurality of sliding grooves 14, a rack 43 which is matched with the gear 9 for use is fixed on one side of the shifting plate 16 close to the gear 9, a shifting sliding groove 17 which is communicated with the through groove 10 is formed in the middle of the mass spectrometer main body 1, a plurality of sliding plates 18 which are convenient to synchronously shift are slidably arranged in the shifting sliding groove 17, a convex block 19 and a groove 20 which are used for providing a sealing effect are respectively arranged on two sides of each sliding plate 18, rotating seats 21 which are matched for use are respectively arranged on the shifting plate 16 and the sliding plates 18, a deflection rod 22 is rotatably connected between each rotating seat 21 on any one shifting plate 16 of the rotating seats 21 and the rotating seat 21 on the adjacent sliding plate 18 through a rotating shaft, when in use, the gear 9 drives the rack 43 which is matched with the gear 9 to shift to one side far away from the through groove 10 and drives the shifting plate 16, and then under the cooperation of rotating seat 21 and deflection pole 22, drive a plurality of sliding plates 18 to logical groove 10 center synchronous slip, and the block is in the step inslot of hollow tube 13 tip, and then sealed logical groove 10, and simultaneously, lug 19 and recess 20 between two adjacent sliding plates 18 cooperate, rotate knob 8 after, can effectively seal logical groove 10.

The displacement sealing mechanism 5 comprises a mounting plate 23 which is mounted on the ion source adjusting area 3 of the mass spectrometer main body 1 through a bolt, a connecting plate 24 is fixed at the bottom of the mounting plate 23, a displacement shaft 25 penetrates through the middle of the mounting plate 23 in a sliding manner, an elastic part 26 for facilitating positioning is arranged at the top of the mounting plate 23, an auxiliary component 27 for performing secondary sealing on the vacuum area 2 in the mass spectrometer is arranged at the bottom of the displacement shaft 25, when the displacement sealing mechanism is used, a push-pull rod 29 is pulled to drive a positioning column 30 to displace backwards, a return spring 31 is compressed to cancel the positioning of the displacement shaft 25, then the displacement shaft 25 is pressed downwards to drive a corrugated pipe 33 to extend so as to prevent air from entering the inside, meanwhile, the displacement shaft 25 drives two rotating rods 34 to rotate and drive a sealing plate 35 mounted at the end part to displace until the sealing plate 35 is contacted with the through groove 10, and a top block, realize the secondary seal, be provided with the chamfer that is used for making things convenient for the cooperation to use on the kicking block 41, in-process, at slide rail 37, slider 38, under the cooperation of gyro wheel 39 and telescopic link 40, guarantee that closing plate 35 is in vertical state all the time, then after sealed the completion, loosen push-and-pull rod 29, under reset spring 31 effect, ejecting reference column 30, cooperate with draw-in groove 32, realize the location to aversion axle 25, avoid not hard up at the change in-process, in addition, be provided with the arch of using with mass spectrometer main part 1 cooperatees on mounting panel 23, and all be provided with the sealed pad that is used for improving sealed effect between the gap of contact, the wearing and tearing that the internals is each other have been reduced, the phenomenon that the inside vacuum region 2 of ion source change initial stage mass spectrum got.

The elastic part 26 comprises a fixed pipe 28 fixed on the top of the mounting plate 23, a push-pull rod 29 is connected in the fixed pipe 28 in a sliding mode, a positioning column 30 is fixed on one side, close to the displacement shaft 25, of the push-pull rod 29, a return spring 31 is sleeved on the outer side of the push-pull rod 29, two ends of the return spring are respectively in contact with the fixed pipe 28 and the positioning column 30, a clamping groove 32 matched with the positioning column 30 for use is formed in the displacement shaft 25, when the elastic part is used, the push-pull rod 29 is pulled to drive the positioning column 30 to move backwards, the return spring 31 is compressed, positioning of the displacement shaft 25 is cancelled, after sealing is completed, the push-pull rod 29 is loosened, the positioning column 30 is ejected under the action of the return spring 31 and is matched with the clamping groove 32, positioning of.

The auxiliary assembly 27 is established including the cover and is moved the axle 25 outside and both ends respectively with mounting panel 23 and aversion axle 25 to fixed bellows 33, all rotate through the pivot and install dwang 34, two on connecting plate 24 and the aversion axle 25 dwang 34 tip is provided with closing plate 35 through the pivot rotation, be used for preventing the not hard up piece 36 of adjusting of function sealing mechanism 4 on the closing plate 35, when using, press down aversion axle 25, drive the extension of bellows 33 to prevent inside entering air, simultaneously, aversion axle 25 drives two dwang 34 rotations, and the closing plate 35 at the tip is installed in the drive and is shifted, prevents that sliding plate 18 from appearing not hard up under the pressure differential effect of both sides, and carries out secondary seal.

The aligning member 36 comprises two sliding rails 37 fixed to the connecting plate 24 on the side close to the through slot 10, the slide rails 37 are all connected with slide blocks 38 in a sliding way, a plurality of idler wheels 39 convenient for sliding adjustment are arranged on the slide blocks 38, and the end parts are all fixed with telescopic rods 40, the end parts of which are fixed on the sealing plate 35, one side of the sealing plate 35 close to the sliding plate 18 is fixed with a top block 41, the sliding plate 18 is provided with notches 42 matched with the top block 41 for use, when in use, the sealing effect is improved by the matching of the top block 41 on the sealing plate 35 and the notch 42 on the sliding plate 18, the top block 41 is provided with a chamfer angle for convenient matching use, and in the process, under the cooperation of slide rail 37, slider 38, gyro wheel 39 and telescopic link 40, guarantee that closing plate 35 is in vertical state all the time, make things convenient for kicking block 41 and notch 42 to mutually support, further improve the leakproofness.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be applied to mass spectrum interface arrangement of mass spectrometer, includes mass spectrometer main part (1) and sets up inside vacuum area (2) of mass spectrum and ion source regulatory region (3) inside mass spectrometer main part (1), its characterized in that: the ion source adjusting device is characterized in that the mass spectrum internal vacuum region (2) is provided with a functional sealing mechanism (4) which is used for pre-sealing the mass spectrum internal vacuum region (2) to prevent air inflow, and the ion source adjusting region (3) is provided with a displacement sealing mechanism (5) which is used for carrying out secondary sealing on the mass spectrum internal vacuum region (2) and preventing the functional sealing mechanism (4) from loosening.

2. The mass spectrometer interface device as claimed in claim 1, wherein: function sealing mechanism (4) are including fixing supporting seat (6) in inside vacuum region of mass spectrum (2) one side, rotate through the bearing between mass spectrometer main part (1) and supporting seat (6) and install main shaft (7) that both ends all extend to the outside, main shaft (7) extend to mass spectrometer main part (1) outside one end and are fixed with knob (8), and the opposite side installs gear (9), logical groove (10) have been seted up at mass spectrometer main part (1) middle part, it is used for conveniently carrying out pre-confined function seal assembly (11) when changing the ion source to be provided with in logical groove (10).

3. The mass spectrometer interface device as claimed in claim 2, wherein: function seal assembly (11) are including a plurality of evenly installing locating plate (12) inside leading to groove (10), and are a plurality of locating plate (12) end fixing has hollow tube (13), evenly set up a plurality of sliding tray (14) that are used for conveniently shifting the regulation on hollow tube (13), be provided with in sliding tray (14) and be used for cooperating with gear (9) and use regulating part (15) that carry out the regulation.

4. The mass spectrometer interface device as claimed in claim 3, wherein: the adjusting piece (15) comprises a shifting plate (16) which is connected in a sliding way in a plurality of sliding grooves (14), a rack (43) matched with the gear (9) for use is fixed on one side of the shifting plate (16) close to the gear (9), the middle part of the mass spectrometer main body (1) is provided with a shifting chute (17) communicated with the through groove (10), a plurality of sliding plates (18) which are used for facilitating synchronous displacement are arranged in the displacement chute (17) in a sliding way, the sliding plate (18) is provided with a convex block (19) and a groove (20) on two sides for providing sealing effect, the shifting plate (16) and the sliding plates (18) are respectively provided with a rotating seat (21) which is matched with each other for use, and a deflection rod (22) is rotatably connected between the rotating seat (21) which is arranged on the shifting plate (16) in any one of the rotating seats (21) and the rotating seat (21) on the adjacent sliding plate (18) through a rotating shaft.

5. The mass spectrometer interface device as claimed in claim 4, wherein: displacement sealing mechanism (5) include mounting panel (23) of installing ion source regulation region (3) on mass spectrometer main part (1) through the bolt, mounting panel (23) bottom is fixed with connecting plate (24), and the middle part slides and runs through has displacement axle (25), mounting panel (23) top is provided with elastic component (26) that are used for convenient location, displacement axle (25) bottom is provided with and is used for carrying out secondary seal's auxiliary assembly (27) to the inside vacuum region of mass spectrum (2).

6. The mass spectrometer interface device as claimed in claim 5, wherein: the elastic part (26) comprises a fixed pipe (28) fixed to the top of the mounting plate (23), a push-pull rod (29) is connected to the fixed pipe (28) in a sliding mode, a positioning column (30) is fixed to one side, close to the displacement shaft (25), of the push-pull rod (29), a reset spring (31) is sleeved on the outer side of the push-pull rod (29), two ends of the reset spring are respectively in contact with the fixed pipe (28) and the positioning column (30), and a clamping groove (32) matched with the positioning column (30) in use is formed in the displacement shaft (25).

7. The mass spectrometer interface device as claimed in claim 6, wherein: auxiliary assembly (27) establish respectively with mounting panel (23) and displacement axle (25) to fixed bellows (33) including the cover in displacement axle (25) outside and both ends, all install dwang (34), two through the pivot rotation on connecting plate (24) and displacement axle (25) dwang (34) tip is provided with closing plate (35) through the pivot rotation, be used for preventing on closing plate (35) that function sealing mechanism (4) are not hard up alignment piece (36).

8. The mass spectrometer interface device as claimed in claim 7, wherein: the aligning member (36) comprises two sliding rails (37) fixed on one side, close to the through groove (10), of the connecting plate (24), a sliding block (38) is connected to the inside of each sliding rail (37) in a sliding mode, a plurality of rolling wheels (39) used for facilitating sliding adjustment are mounted on each sliding block (38), the end portions of the rolling wheels are fixed with telescopic rods (40) of which the end portions are fixed on the sealing plate (35), a top block (41) is fixed on one side, close to the sliding plate (18), of the sealing plate (35), and notches (42) matched with the top block (41) for use are formed in the sliding plate (18).