CN112017940A - Mass spectrometer sample target inlet and outlet device and mass spectrometer - Google Patents
Mass spectrometer sample target inlet and outlet device and mass spectrometer Download PDFInfo
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- CN112017940A CN112017940A CN202010984621.3A CN202010984621A CN112017940A CN 112017940 A CN112017940 A CN 112017940A CN 202010984621 A CN202010984621 A CN 202010984621A CN 112017940 A CN112017940 A CN 112017940A
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- mass spectrometer
- sample target
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0409—Sample holders or containers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0409—Sample holders or containers
- H01J49/0418—Sample holders or containers for laser desorption, e.g. matrix-assisted laser desorption/ionisation [MALDI] plates or surface enhanced laser desorption/ionisation [SELDI] plates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/26—Mass spectrometers or separator tubes
- H01J49/34—Dynamic spectrometers
- H01J49/40—Time-of-flight spectrometers
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention relates to the field of medical instruments, in particular to a sample target in-out device of a mass spectrometer and the mass spectrometer. The connecting rod structure in the invention ensures that the motor in the vertical direction of the supporting plate does not need to be driven by the motor, and the limiting piece can avoid the unstable condition of the mounting plate after being stressed, thereby preventing air leakage in the sample introduction process or inaccurate positioning in the ionization process.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a sample target in-out device of a mass spectrometer and the mass spectrometer.
Background
Matrix-assisted laser desorption ionization time-of-flight mass spectrometer is a kind of biological mass spectrometer instrument commonly used for macromolecular sample analysis. When a sample is analyzed, the sample is usually formed into a solid on a sample target, the sample target is placed in a mass spectrometer, an electric field generated by the combination of a pole piece and an electric system is used for introducing the initially dispersed ions into a field-free flight area in an accelerating, focusing and deflecting manner, and the ions with different masses are separated and then sequentially sent to a detector for detection.
The ionization process of the matrix-assisted laser desorption time-of-flight mass spectrometry sample and the mass spectrometry detection process of the sample are carried out in a high-vacuum environment. That is, the sample target needs to be moved from a normal-pressure sample introduction position to a vacuum detection position.
The sample under the normal temperature and normal pressure environment is transferred to a vacuum system and the test of a multi-flux sample is realized, which are both ensured by a reliable transfer mechanism and an accurate positioning moving mechanism. It is also important to ensure that the vacuum system cannot be broken during the sample transfer process, so the sample target access structure is particularly important in such instruments.
In a vacuum chamber of a conventional mass spectrometer, an installation plate for placing a sample target is provided, an X-direction guide rail and a Y-direction guide rail are installed on a plane, the installation plate is driven by two motors to move on the X-direction guide rail and the Y-direction guide rail, respectively, and a vertical movement mechanism is connected to the installation plate and drives the installation plate to move in a Z-direction by a vertical movement motor. Thereby realizing the following motion process of the mounting plate: after a sample target is installed at a sample injection position, vertically moving downwards to enable the sample target to enter a vacuum chamber; moving in the X and Y directions to just below the ionization site; moving vertically upwards to an ionization position for ionization; and returning to the sample introduction position according to the original track to replace the sample target.
However, the technology needs three motors, and the energy consumption is large; the space is not easy to arrange, which is not beneficial to installation; and maintenance is difficult.
Disclosure of Invention
The invention provides a sample target in-out device of a mass spectrometer and the mass spectrometer, and aims to solve the technical problems that three motors are needed, the energy consumption is high, the space is not easy to arrange, the installation is not facilitated, and the maintenance is difficult in the prior art.
In order to solve the technical problems, the invention adopts the following technical means:
an in-out device of a mass spectrometer sample target, comprising a Y-direction moving mechanism and a vertical moving mechanism which are used for moving in a cavity, and is characterized in that: the vertical motion mechanism comprises a supporting plate arranged on the Y-direction moving mechanism and a mounting plate arranged on the supporting plate through a connecting rod mechanism, a limiting part is arranged between the supporting plate and the mounting plate, and a sample target is arranged on the upper surface of the mounting plate.
At least two connecting rods are rotatably connected between the supporting plate and the mounting plate through a rotating shaft to form a four-connecting-rod structure.
Further, the number of the connecting rods is four.
The locating part is installed on the layer board, two the locating part is located respectively the both sides of mounting panel. The limiting piece and the supporting plate are integrally formed.
The both sides of mounting panel seted up with dodge groove of locating part looks adaptation. The term "fit" as used herein refers to a position-limiting element embedded in the avoiding groove.
And a second rolling part is arranged on the side wall of the limiting part and is abutted against the side wall of the mounting plate.
The second rolling member is a ball.
And the side wall of the limiting part is provided with a ball mounting hole for mounting a ball.
The ball mounting hole is a through hole, and one side of the limiting part, which is far away from the mounting plate, is detachably connected with a fixing plate for limiting the balls.
Or the limiting parts are arranged on the mounting plate, and the two limiting parts are respectively positioned at two sides of the supporting plate. The locating part and the mounting plate are integrally formed.
And avoidance grooves matched with the limiting parts are formed in the two sides of the supporting plate. The term "fit" as used herein refers to a position-limiting element embedded in the avoiding groove.
And the side wall of the mounting plate is provided with a second rolling part which is propped against the side wall of the supporting plate.
The second rolling member is a ball.
And the side wall of the limiting part is provided with a ball mounting hole for mounting a ball.
The ball mounting hole is a through hole, and one side of the limiting part, which is far away from the supporting plate, is detachably connected with a fixing plate for limiting the balls.
And the fixed plate is provided with an adjusting device for adjusting the position of the ball.
The adjusting device is a first screw, and the end part of the first screw is directly or indirectly abutted against the second rolling part; or the adjusting device is a second screw, the fixing plate is connected to the limiting part through the second screw, and the side surface of the fixing plate abuts against the second rolling part.
And a first rolling piece which is used for contacting with the inner wall of the cavity is arranged on the side surface of the mounting plate. The first rolling member is a roller. The number of the first rolling members is two.
The side surface of the mounting plate is provided with a notch for mounting a first rolling piece, and the first rolling piece is positioned in the notch and is connected with the rotating shaft in a rotatable matching manner.
The Y-direction moving mechanism comprises a Y-direction platform arranged in the cavity, a Y-direction guide rail arranged on the Y-direction platform, a Y-direction lead screw and a Y-direction motor; the supporting plate is arranged on the Y-direction guide rail and is connected with the Y-direction lead screw in a matching way.
Or the Y-direction moving mechanism comprises a Y-direction platform arranged in the cavity, a Y-direction guide rail arranged on the Y-direction platform, a Y-direction lead screw and a Y-direction motor; the X-direction moving mechanism comprises an X-direction platform, an X-direction guide rail, an X-direction lead screw and an X-direction motor, wherein the X-direction platform is arranged on the Y-direction guide rail and matched with the Y-direction lead screw; the supporting plate is arranged on the X-direction guide rail and is connected with the X-direction lead screw in a matching way.
And an elastic piece is also arranged between the supporting plate and the mounting plate. One end of the elastic piece is connected with the supporting plate, the other end of the elastic piece is connected with the mounting plate, and the elastic piece provides tension. The elastic member is a spring.
The front part and the middle part of the supporting plate are both provided with grooves, a plate-shaped wall is formed between the two grooves, the wall is provided with a fixing hole for fixing an elastic piece, one end of the elastic piece is fixed on the fixing hole, and the other end of the elastic piece is sleeved on the fixing column; the mounting plate is provided with a groove matched with the fixing column in shape, and the fixing column is matched in the groove. The term "fit" as used herein means that the fastening post can be placed in the recess and retained in the recess after being pulled by the resilient member.
And an adsorption piece is also arranged between the supporting plate and the mounting plate. The adsorption member is installed on the support plate or the installation plate. The adsorption piece is a magnet which is in a convex shape on the mounting plate or the supporting plate. The number of the adsorption pieces is two, three or four.
A mass spectrometer comprises the mass spectrometer sample target inlet and outlet device.
The invention achieves the technical effects that: (1) because the connecting rod structure is adopted to connect the mounting plate and the supporting plate, the movement of the supporting plate in the vertical direction does not need to be driven by a motor, compared with the prior art, the scheme reduces one motor and the mounting structure of the motor, saves cost and energy consumption, improves the space utilization rate, simplifies a control system and reduces the failure probability; (2) the first rolling piece is arranged, so that the mounting plate is protected from being abraded, the mounting plate can be prevented from being collided and rubbed when moving in the vertical direction, and the movement stability is improved; (3) due to the elastic part and the adsorption part, the mounting plate can be accurately positioned on the surface of the adsorption part, the precision is improved, and the mounting plate is ensured to be the same in position during each ionization; (4) due to the limiting piece, the situation that the mounting plate is unstable after being stressed is avoided by the limiting piece, so that air leakage in the process of sample injection or inaccurate positioning in the process of ionization is avoided; (5) the second rolling piece is abutted against the side wall of the mounting plate, so that the mounting plate can be limited, the mounting plate is prevented from shaking, and the mounting plate cannot be abraded; (6) due to the fact that the fixing plate and the adjusting device are arranged, the second rolling piece can be conveniently installed, the adjusting device can adjust the position of the second rolling piece, the second rolling piece is just in contact with the installation plate, and therefore a better limiting and guiding effect is achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;
FIG. 3 is a schematic view of the structure at the pallet of the present invention;
fig. 4 is a schematic view of the structure of the mounting plate.
The reference numerals in the drawings denote: the device comprises a Y-direction platform 10, a Y-direction guide rail 11, a Y-direction lead screw 12, a Y-direction motor 13, an X-direction platform 20, an X-direction guide rail 21, an X-direction lead screw 22, a supporting plate 3, a connecting rod 4, a rotating shaft 5, a mounting plate 6, a notch 61, a groove 62, an avoidance groove 63, an elastic piece 71, a limiting piece 8, an adsorbing piece 9, a first rolling piece 65, a fixing hole 31, a fixing column 72, a ball mounting hole 82, a fixing plate 83 and a sample target 9.
Detailed Description
Example 1
As shown in fig. 1, an apparatus for accessing a sample target 9 of a mass spectrometer includes a Y-direction moving mechanism, an X-direction moving mechanism, and a vertical moving mechanism for moving in a chamber. In a mass spectrometer, the cavity is referred to as a vacuum cavity.
The Y-direction moving mechanism comprises a Y-direction platform 10 arranged in the cavity, a Y-direction guide rail 11 arranged on the Y-direction platform 10, a Y-direction lead screw 12 and a Y-direction motor 13 connected with the Y-direction lead screw 12.
The X-direction moving mechanism comprises an X-direction platform 20 which is arranged on the Y-direction guide rail 11 and matched with the Y-direction lead screw 12, an X-direction guide rail 21 which is arranged on the X-direction platform 20, an X-direction lead screw 22 and an X-direction motor which is connected with the X-direction lead screw 22. The matching mode of the X-direction platform 20 and the Y-direction lead screw 12 is as follows: the X-direction platform 20 is fixedly connected with a lead screw nut of the Y-direction lead screw 12.
The vertical motion mechanism comprises a supporting plate 3 which is arranged on the X-direction guide rail 21 and matched with the X-direction lead screw 22, and a mounting plate 6 which is arranged on the supporting plate 3 through a connecting rod 4 mechanism, wherein an elastic part 71, a limiting part 8 and an adsorption part 9 are arranged between the supporting plate 3 and the mounting plate 6; the upper surface of the mounting plate 6 mounts a sample target 9. The mode that layer board 3 cooperatees with X to lead screw 22 is: the supporting plate 3 is fixedly connected with a screw nut of the Y-direction screw 12.
At least two connecting rods 4 are rotatably connected between the supporting plate 3 and the mounting plate 6 through a rotating shaft 5 to form a four-connecting-rod structure. The number of the links 4 in this embodiment is four.
The Y-direction motor 13 drives the Y-direction lead screw 12 to rotate, the X-direction platform 20 is driven to slide on the Y-direction guide rail 11, the X-direction motor drives the X-direction lead screw 22 to rotate, the supporting plate 3 is driven to slide on the X-direction guide rail 21, and therefore the supporting plate 3 can move on the XY plane.
As shown in figure 2, because the mounting plate 6 is mounted on the supporting plate 3 through the connecting rod 4 mechanism, when the mounting plate 6 moves leftwards along with the supporting plate 3 on the plane to be in contact with the inner wall of the cavity, the supporting plate 3 continues to move leftwards, the connecting rod 4 rotates, and the mounting plate 6 can be lifted upwards until the sample target 9 moves to the sampling position. When the sample is fed, the mounting plate 6 returns along the movement route.
By the above structure, all the movements of the sample target 9 are realized. Because only the connecting rod 4 structure is adopted to connect the mounting plate 6 and the supporting plate 3 in the scheme, the motor in the vertical direction of the supporting plate 3 is not required to be driven by the motor, compared with the prior art, the motor and the mounting structure of the motor are reduced, the cost and the energy consumption are saved, the space utilization rate is improved, the control system can be simplified, and the fault probability is reduced.
The side surface of the mounting plate 6 is mounted with a first rolling member 65 for contact with the inner wall of the chamber.
In the present embodiment, the first rolling member 65 is a roller, and the number of rollers is two.
A notch 61 for installing the first rolling member 65 is formed on the side surface of the mounting plate 6, and the first rolling member 65 is positioned in the notch 61 and is rotatably matched and connected with the rotating shaft 5. To ensure stable connection of the rollers.
The provision of the notch 61 enables the first rolling member 65 to be mounted on the rotating shaft 5 without taking up additional space.
When the mounting plate 6 moves below the sampling position, i.e. contacts the inner wall of the chamber, contact will occur on the first rolling member 65, and the first rolling member 65 rolls on the inner wall of the chamber when the mounting plate 6 moves in the vertical direction. The first rolling member 65 can protect the mounting plate 6 from being worn, and can prevent the mounting plate 6 from colliding and rubbing when moving in the vertical direction, thereby improving the stability of the movement.
One end of the elastic member 71 is connected with the supporting plate 3, the other end of the elastic member is connected with the mounting plate 6, and the elastic member 71 provides tension; the elastic member 71 is a spring in this embodiment. The function of the elastic member 71 is to provide a pulling force to ensure that the mounting plate 6 can be attached to the pallet 3 under the pulling force.
The front part and the middle part of the supporting plate 3 are both provided with grooves, a plate-shaped wall is formed between the two grooves, the wall is provided with a fixing hole 31 for fixing the elastic piece 71, one end of the elastic piece 71 is fixed on the fixing hole 31, and the other end is sleeved on the fixing column 72; the mounting plate 6 is provided with a groove 62 matched with the fixing column in shape, and the fixing column is matched in the groove 62. The term "fit" as used herein means that the fastening post can be placed in the recess 62 and be retained in the recess 62 after being pulled by the elastic member 71.
The locating part 8 is installed on the layer board 3, and two locating parts 8 are located the both sides of mounting panel 6 respectively, and locating part 8 and mounting panel 6 integrated into one piece in this embodiment. Since the mounting plate 6 is supported only by the link 4 when moving relative to the pallet 3, the mounting plate 6 is subjected to a reaction force generated during the movement and a pressure due to a pressure difference. The mounting plate 6 supported by the connecting rod 4 is unstable, and once the movement of the mounting plate 6 deviates a little, the situation of air leakage during sample injection or the situation of inaccurate positioning during ionization can occur.
The side wall of the limiting member 8 is provided with a second rolling member, the second rolling member abuts against the side wall of the mounting plate 6, and the second rolling member is a ball in this embodiment. The side wall of the limiting member 8 is provided with a ball mounting hole 82 for mounting a ball. The ball mounting hole 82 is a through hole, and one side of the limiting member 8 away from the mounting plate 6 is detachably connected with a fixing plate 83 for limiting the balls.
An adjusting device for adjusting the position of the ball is mounted on the fixed plate 83.
The adjusting device is a first screw, and the end part of the first screw is directly or indirectly abutted against the second rolling piece. Or the adjusting device is a second screw, the fixing plate 83 is connected to the limiting member 8 through the second screw, and the side surface of the fixing plate 83 abuts against the second rolling member.
In order to guarantee that the limiting part 8 can limit the mounting plate 6, prevent the mounting plate 6 from shaking and not wear the mounting plate 6, a second rolling part is arranged on the side wall of the limiting part 8. The installation can be facilitated for the arrangement of the through-hole and the fixing plate 83. When the installation is carried out, the second rolling piece can be installed firstly, and then the installation plate 6 is installed; it is also possible to mount the mounting plate 6 first, then place the second rolling element in and finally mount the fixing plate 83. Simultaneously, through operation adjusting device, can adjust the position of second rolling member for the second rolling member just in time contacts with mounting panel 6, thereby reaches better spacing direction effect. When the adjusting device is a first screw, the first screw is rotated to push the rolling part to move, so that the position of the rolling part is adjusted. When the adjusting device is a second screw, the position of the fixing plate 83 can be adjusted by rotating the second screw, so that the second rolling member can move in the through hole, and the adjustment of the position of the second rolling member is realized.
An avoidance groove 63 matched with the limiting part 8 is formed in each of two sides of the mounting plate 6; the fitting mentioned here means that the limiting element 8 is embedded in the avoiding groove 63. The escape groove 63 can play a role of saving space.
The adsorbing members 9 are mounted on the supporting plate 3 or the mounting plate 6, and the adsorbing members 9 are three magnet blocks mounted on the supporting plate 3 in this embodiment.
The suction member 9 can serve both the positioning and the suction purposes. The adsorption piece 9 is used for positioning, the mounting plate 6 is not directly attached to the supporting plate 3, the processing surface is reduced, the processing is convenient, and the positioning precision can be improved. Meanwhile, the attractive force of the adsorption piece 9 can further ensure that the mounting plate 6 can be accurately positioned on the surface of the adsorption piece 9, and the precision is further improved. The suction member 9 and the elastic member 71 cooperate to ensure that the position of the mounting plate 6 is the same at each ionization.
Likewise, the adsorption member 9 is mounted on the mounting plate 6 to achieve the effect. The number of suction members 9 can be two, four or other numbers as well.
Example 2
The difference between this embodiment and embodiment 1 is only that the limiting members 8 are integrally formed with the mounting plate 6 instead of being integrally formed with the supporting plate 3, two limiting members 8 are respectively located on two sides of the supporting plate 3, and the remaining structure is modified adaptively. Obviously, the present embodiment can achieve the same technical effects as embodiment 1.
Example 3
The present embodiment differs from embodiment 1 only in that the present embodiment does not have an X-direction moving mechanism, the pallet 3 is directly mounted on the Y-direction rail 11 and engaged with the Y-direction lead screw 12, and the pallet 3 can slide on the Y-direction lead screw 12.
In this embodiment, the number of X-direction moving mechanisms is reduced, and the structure is simpler, but the X-direction movement cannot be realized, and the X-direction adjustment of the sample target 9 cannot be performed only by the Y-direction moving mechanism. The rest of the principle and technical effects are the same as those of embodiment 1.
Example 4
The present embodiment differs from embodiment 2 only in that the present embodiment does not have an X-direction moving mechanism, the pallet 3 is directly mounted on the Y-direction rail 11 and engaged with the Y-direction lead screw 12, and the pallet 3 can slide on the Y-direction lead screw 12.
In this embodiment, the number of X-direction moving mechanisms is reduced, and the structure is simpler, but the X-direction movement cannot be realized, and the X-direction adjustment of the sample target 9 cannot be performed only by the Y-direction moving mechanism. The rest of the principle and technical effect are the same as those of the embodiment 2.
Example 5
A mass spectrometer comprises the mass spectrometer sample target inlet and outlet device.
Claims (17)
1. An in-out device of a mass spectrometer sample target, comprising a Y-direction moving mechanism and a vertical moving mechanism which are used for moving in a cavity, and is characterized in that: vertical motion installs including installing at Y to the layer board on the moving mechanism, through link mechanism mounting panel on the layer board, link mechanism includes two connecting rods at least, forms four-bar linkage with layer board and mounting panel, install the locating part between layer board and the mounting panel, the last surface mounting sample target of mounting panel.
2. The mass spectrometer sample target access device of claim 1, wherein: the number of the connecting rods is four.
3. The mass spectrometer sample target access device of claim 2, wherein: the limiting pieces are arranged on the supporting plate, and the two limiting pieces are respectively positioned on two sides of the mounting plate; or the limiting parts are arranged on the mounting plate, and the two limiting parts are respectively positioned at two sides of the supporting plate.
4. The mass spectrometer sample target access device of claim 1, 2 or 3, wherein: the limiting piece and the supporting plate are integrally formed, and avoidance grooves matched with the limiting piece are formed in two sides of the mounting plate;
or the limiting part and the mounting plate are integrally formed, and avoidance grooves matched with the limiting part are formed in two sides of the supporting plate.
5. The mass spectrometer sample target access device of claim 1 or 2 or 3 or 4, wherein: and a second rolling part is arranged on the side wall of the limiting part and is abutted against the side wall of the mounting plate.
6. The mass spectrometer sample target access device of claim 5, wherein: the second rolling piece is a ball; the side wall of the limiting piece is provided with a ball mounting hole for mounting a ball; the ball mounting hole is a through hole, and one side of the limiting part, which is far away from the mounting plate, is detachably connected with a fixing plate for limiting the balls.
7. The mass spectrometer sample target access device of claim 6, wherein: and the fixed plate is provided with an adjusting device for adjusting the position of the ball.
8. The mass spectrometer sample target access device of claim 7, wherein: the adjusting device is a first screw, and the end part of the first screw is directly or indirectly abutted against the second rolling part; or the adjusting device is a second screw, the fixing plate is connected to the limiting part through the second screw, and the side surface of the fixing plate abuts against the second rolling part.
9. The mass spectrometer sample target access device of claim 1 or 2 or 3 or 4, wherein: and the side wall of the mounting plate is provided with a second rolling part which is propped against the side wall of the supporting plate.
10. The mass spectrometer sample target entry and exit device of claim 1 or 2 or 3 or 4 or 6 or 7 or 8, wherein: and a first rolling piece which is used for contacting with the inner wall of the cavity is arranged on the side surface of the mounting plate.
11. The mass spectrometer sample target access device of claim 12, wherein: the first rolling parts are rollers, and the number of the first rolling parts is two; the side surface of the mounting plate is provided with a notch for mounting a first rolling piece, and the first rolling piece is positioned in the notch and is connected with the rotating shaft in a rotatable matching manner.
12. The mass spectrometer sample target entry and exit device of claim 1 or 2 or 3 or 4 or 6 or 7 or 8 or 11, wherein: the Y-direction moving mechanism comprises a Y-direction platform arranged in the cavity, a Y-direction guide rail arranged on the Y-direction platform, a Y-direction lead screw and a Y-direction motor; the supporting plate is arranged on the Y-direction guide rail and is connected with the Y-direction lead screw in a matching way;
or the Y-direction moving mechanism comprises a Y-direction platform arranged in the cavity, a Y-direction guide rail arranged on the Y-direction platform, a Y-direction lead screw and a Y-direction motor; the X-direction moving mechanism comprises an X-direction platform, an X-direction guide rail, an X-direction lead screw and an X-direction motor, wherein the X-direction platform is arranged on the Y-direction guide rail and matched with the Y-direction lead screw; the supporting plate is arranged on the X-direction guide rail and is connected with the X-direction lead screw in a matching way.
13. The mass spectrometer sample target entry and exit device of claim 1 or 2 or 3 or 4 or 6 or 7 or 8 or 11, wherein: and an elastic piece is also arranged between the supporting plate and the mounting plate.
14. The mass spectrometer sample target access device of claim 13, wherein: the elastic piece is a spring; one end of the elastic piece is connected with the supporting plate, the other end of the elastic piece is connected with the mounting plate, and the elastic piece provides tension;
the front part and the middle part of the supporting plate are both provided with grooves, a plate-shaped wall is formed between the two grooves, the wall is provided with a fixing hole for fixing an elastic piece, one end of the elastic piece is fixed on the fixing hole, and the other end of the elastic piece is sleeved on the fixing column; the mounting plate is provided with a groove matched with the fixing column in shape, and the fixing column is matched in the groove.
15. The mass spectrometer sample target entry and exit device of claim 1 or 2 or 3 or 4 or 6 or 7 or 8 or 14, wherein: an adsorption piece is also arranged between the supporting plate and the mounting plate; the adsorption member is installed on the support plate or the installation plate.
16. The mass spectrometer sample target access device of claim 15, wherein: the adsorption member is a magnet; the adsorption piece is in a convex shape on the mounting plate or the supporting plate; the number of the adsorption pieces is two, three or four.
17. A mass spectrometer, characterized by: an access means comprising a mass spectrometer sample target as claimed in any preceding claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010984621.3A CN112017940A (en) | 2020-09-18 | 2020-09-18 | Mass spectrometer sample target inlet and outlet device and mass spectrometer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010984621.3A CN112017940A (en) | 2020-09-18 | 2020-09-18 | Mass spectrometer sample target inlet and outlet device and mass spectrometer |
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| CN112017940A true CN112017940A (en) | 2020-12-01 |
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| CN202010984621.3A Pending CN112017940A (en) | 2020-09-18 | 2020-09-18 | Mass spectrometer sample target inlet and outlet device and mass spectrometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114371211A (en) * | 2021-12-31 | 2022-04-19 | 四川红华实业有限公司 | Accurate fine setting positioner of mass spectrometer electro-magnet |
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2020
- 2020-09-18 CN CN202010984621.3A patent/CN112017940A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114371211A (en) * | 2021-12-31 | 2022-04-19 | 四川红华实业有限公司 | Accurate fine setting positioner of mass spectrometer electro-magnet |
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Address after: 400037 1st-4th floor, building 30, No.6 Taikang Road, Zone C, Jianqiao Industrial Park, Dadukou District, Chongqing Applicant after: Zhongyuan Huiji Biotechnology Co.,Ltd. Address before: 400037 1st-4th floor, building 30, No.6 Taikang Road, Zone C, Jianqiao Industrial Park, Dadukou District, Chongqing Applicant before: CHONGQING ZHONGYUAN HUIJI BIOTECHNOLOGY Co.,Ltd. |