Plasma mass spectrometer coupling interface device

Abstract

The utility model provides a plasma mass spectrometer coupling interface device, which belongs to the technical field of mass spectrometers and comprises a mass spectrometer and an interface device arranged on one side of the mass spectrometer, one side of the mass spectrometer is provided with a mounting groove, and the inner wall of the mounting groove is fixedly connected with a wedge block. According to the utility model, when the arranged wedge-shaped block is matched with the connecting plate to install the interface device, the sealing plate slides upwards to expose the interface so as to facilitate the subsequent insertion and fixation between the joint and the interface, and meanwhile, after the sealing plate is matched with the spring to detach the interface device, the sealing plate slides downwards to seal the interface in the sealing groove, so that the sealing effect is improved. Meanwhile, when the piston rod is matched with the sliding rod to install the interface device, the piston rod slides upwards in the air channel, compressed air is sprayed to the surface of the interface through the air nozzle, dust on the outer wall of the interface is cleaned, and the situation that subsequent connection with the connector is affected due to excessive dust accumulation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mass spectrometers, and more specifically, to an interface device for coupling a plasma mass spectrometer. Background Art

[0002] Plasma mass spectrometry is a new analytical and testing technology developed in the 1980s. It combines the high-temperature (8000K) ionization characteristics of ICP with the advantages of sensitive and fast scanning of a quadrupole mass spectrometer to form a new and most powerful elemental analysis, isotope analysis, and morphology analysis technology. This technology provides analytical characteristics such as extremely low detection limits, extremely wide dynamic linear ranges, simple spectral lines, few interferences, high analysis precision, fast analysis speed, and the ability to provide isotope information.

[0003] In the prior art, with the development of society, the fields of application of mass spectrometers are becoming more extensive. Staff often carry mass spectrometers during trips. To meet the usage needs of the staff, an interface device for coupling a plasma mass spectrometer has been invented to facilitate the mass spectrometer for detection at any time. However, in the existing inductively coupled plasma mass spectrometer interface device, since the interface for coupling the plasma mass spectrometer is exposed outside for a long time, it is easy to collide with the outside and cause damage, affecting the service life. How to invent an interface device for coupling a plasma mass spectrometer to improve these problems has become an urgent problem for those skilled in the art. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides an interface device for coupling a plasma mass spectrometer, aiming to improve the problem that the coupling interface on the existing interface device for coupling a plasma mass spectrometer is exposed outside for a long time and is easy to collide with the outside and cause damage.

[0005] The utility model is implemented as follows:

[0006] The utility model provides an interface device for coupling a plasma mass spectrometer, including a mass spectrometer and an interface device arranged on one side of the mass spectrometer. An installation groove is opened on one side of the mass spectrometer, a wedge-shaped block is fixedly connected to the inner wall of the installation groove, and a connector is installed on the inner wall of the installation groove near the lower side of the wedge-shaped block.

[0007] One side of the interface device is fixedly connected with an insertion block. A slot is opened on the outer wall of one side of the insertion block. An interface is installed on the inner wall of the slot. A sealing groove is opened on the inner wall of the slot. Adjustment grooves are opened on both sides of the sealing groove. A sealing plate is installed on the inner wall of the sealing groove. A spring is fixedly connected to the upper inner wall of the sealing plate. Adjustment plates slidably connected to the adjustment grooves are fixedly connected to both outer walls of the sealing plate. A pressing rod is installed on the upper end of the adjustment plate. A connecting plate is fixedly connected to the upper ends of the two pressing rods.

[0008] Preferably, the inner wall of the installation groove is slidably connected to the outer wall of the insertion block, the upper side wall of the wedge block is slidably connected to the lower side wall of the connecting plate, and the connector and the interface are inserted and fixed.

[0009] Preferably, the outer wall of the sealing plate is slidably connected to the inner wall of the sealing groove, one end side wall of the spring is fixedly connected to the upper end inner wall of the sealing groove, and the outer wall of the pressure rod is slidably connected to the inner wall of the insertion block.

[0010] By adopting the above technical solution, the insertion block at one end of the interface device is inserted into the installation groove of the mass spectrometer. During the insertion process, the wedge block cooperates with the connecting plate to slide and jack it up. While the connecting plate slides upward, the sealing plate at its lower end compresses the spring and slides upward, disengaging the sealing of the sealing groove. Continuing to slide the interface device enables the interface to be connected and fixed with the connector.

[0011] Preferably, a sliding groove is opened at the lower end of the adjustment groove, a communication groove is opened at the inner wall of the sliding groove near the lower end, an air duct is opened at the inner wall of the communication groove, and an air nozzle is installed at one end inner wall of the air duct.

[0012] Preferably, a sliding rod fixedly connected to the lower end of the adjustment plate and slidably connected to the inner wall of the sliding groove is provided, and a fixing rod fixedly connected to the bottom end of the sliding rod and slidably connected to the inner wall of the communication groove is provided.

[0013] Preferably, a piston rod is fixedly connected to the upper end of the fixing rod, and the outer wall of the upper end of the piston rod is piston-connected to the inner wall of the air duct.

[0014] By adopting the above technical solution, during the process of inserting and installing the interface device, the sliding rod below the adjustment plate drives the piston rod at one end to slide upward into the air duct to compress air, so that the air is sprayed on the surface of the interface through the air nozzle, cleaning the dust adhering to the surface of the interface and preventing dust accumulation from affecting the connection with the connector.

[0015] The beneficial effects of the present utility model are as follows:

[0016] When the wedge block cooperates with the connecting plate to install the interface device, the sealing plate slides upward to expose the interface, facilitating subsequent insertion and fixation between the connector and the interface. At the same time, after the interface device is disassembled, the sealing plate cooperates with the spring to slide downward to seal the interface inside the sealing groove, thereby avoiding damage to the interface caused by long-term exposure and being easily impacted. At the same time, when the piston rod cooperates with the sliding rod to install the interface device, the piston rod slides upward inside the air duct to compress air and spray it on the surface of the interface through the air nozzle, cleaning the dust on the outer wall of the interface and preventing excessive dust accumulation from affecting the subsequent connection with the connector. Description of the Drawings

[0017] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic diagram of the overall structure of an interface device for coupling a plasma mass spectrometer provided by an embodiment of the present utility model;

[0019] Figure 2 is a half-sectional view of the overall structure of an interface device for coupling a plasma mass spectrometer provided by an embodiment of the present utility model;

[0020] Figure 3 is a schematic diagram of a partial structure of an interface device for coupling a plasma mass spectrometer provided by an embodiment of the present utility model;

[0021] Figure 4 is a half-sectional view of a partial area structure of an interface device for coupling a plasma mass spectrometer provided by an embodiment of the present utility model;

[0022] Figure 5 is a side sectional view of a partial area structure of an interface device for coupling a plasma mass spectrometer provided by an embodiment of the present utility model;

[0023] Figure 6 is a side half-sectional view of a partial area structure of an interface device for coupling a plasma mass spectrometer provided by an embodiment of the present utility model;

[0024] Figure 7 is an interface device for coupling a plasma mass spectrometer provided by an embodiment of the present utility model Figure 2 magnified view of the structure of area A;

[0025] Figure 8 is an interface device for coupling a plasma mass spectrometer provided by an embodiment of the present utility model Figure 4 magnified view of the structure of area B;

[0026] Figure 9 is an interface device for coupling a plasma mass spectrometer provided by an embodiment of the present utility model Figure 6 magnified view of the structure of area C.

[0027] In the figure: 1. Mass spectrometer; 2. Installation groove; 3. Wedge block; 4. Connector; 5. Interface device; 6. Insert block; 7. Slot; 8. Sealing groove; 9. Adjusting groove; 10. Slide groove; 11. Connecting groove; 12. Air passage; 13. Air nozzle; 14. Sealing plate; 15. Spring; 16. Adjusting plate; 17. Pressure rod; 18. Connecting plate; 19. Slide rod; 20. Fixed rod; 21. Piston rod; 22. Interface. Detailed implementation mode

[0028] To make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present utility model.

[0029] Example, refer to Figures 1-9 , a plasma mass spectrometer combined interface device, including a mass spectrometer 1 and an interface device 5 arranged on one side of the mass spectrometer 1. An installation groove 2 is opened on one side of the mass spectrometer 1, a wedge block 3 is fixedly connected to the inner wall of the installation groove 2, and a connector 4 is installed on the inner wall of the installation groove 2 near the lower side of the wedge block 3;

[0030] One side of the interface device 5 is fixedly connected with an insert block 6. A slot 7 is opened on the outer wall of one side of the insert block 6. An interface 22 is installed on the inner wall of the slot 7. A sealing groove 8 is opened on the inner wall of the slot 7. Adjusting grooves 9 are opened on both sides of the sealing groove 8. A sealing plate 14 is installed on the inner wall of the sealing groove 8. A spring 15 is fixedly connected to the upper inner wall of the sealing plate 14. Adjusting plates 16 slidably connected to the adjusting grooves 9 are fixedly connected to both outer walls of the sealing plate 14. A pressure rod 17 is installed on the upper end of the adjusting plate 16. Connecting plates 18 are fixedly connected to the upper ends of the two pressure rods 17.

[0031] Furthermore; the inner wall of the installation groove 2 is slidably connected with the outer wall of the insert block 6, the upper side wall of the wedge block 3 is slidably connected with the lower side wall of the connecting plate 18, the connector 4 and the interface 22 are plugged and fixed, the outer wall of the sealing plate 14 is slidably connected with the inner wall of the sealing groove 8, one end side wall of the spring 15 is fixedly connected with the upper inner wall of the sealing groove 8, and the outer wall of the pressure rod 17 is slidably connected with the inner wall of the insert block 6.

[0032] It should be noted that: the insertion block 6 at one end of the interface device 5 is slid into the installation groove 2 of the mass spectrometer 1. During the insertion process, the upper inclined surface of the wedge block 3 cooperates with the connecting plate 18 to slide and jack it up. While the connecting plate 18 is jacked up, the pressure rod 17 and the adjusting plate 16 at its lower end drive the sealing plate 14 at the bottom end to compress the spring 15 and slide upward, so that the sealing plate 14 is completely received inside the sealing groove 8, exposing the interface 22 inside the slot 7. At this time, continue to slide the interface device 5 so that the interface 22 is inserted and fixed with the joint 4. When the interface device 5 is taken out, the sealing plate 14 slides downward under the action of the spring 15 to close the sealing groove 8, thereby protecting the internal interface 22.

[0033] Furthermore, a sliding groove 10 is opened at the lower end of the adjusting groove 9. A communicating groove 11 is opened on the inner wall near the lower end of the sliding groove 10. An air duct 12 is opened on the inner wall of the communicating groove 11. A nozzle 13 is installed on the inner wall of one end of the air duct 12. A sliding rod 19 that is slidably connected to the inner wall of the sliding groove 10 is fixedly connected to the lower end of the adjusting plate 16. A fixing rod 20 that is slidably connected to the inner wall of the communicating groove 11 is fixedly connected to the bottom end of the sliding rod 19. A piston rod 21 is fixedly connected to the upper end of the fixing rod 20. The outer wall of the upper end of the piston rod 21 is piston-connected to the inner wall of the air duct 12.

[0034] It should be noted that: during the process of inserting and installing the interface device 5, the adjusting plate 16 cooperates with the sliding rod 19 and the fixing rod 20 to make the piston rod 21 at one end slide upward into the air duct 12 to compress the air inside. The compressed air is sprayed on the surface of the interface 22 through the nozzle 13 to clean the dust adhering to the surface of the interface 22 before inserting it with the joint 4, avoiding excessive dust accumulation and causing blockage in subsequent insertion.

[0035] The working principle of this plasma mass spectrometer combined interface device:

[0036] When the interface device 5 needs to be installed on the mass spectrometer 1, the insertion block 6 at one end of the interface device 5 is slid into the installation groove 2 of the mass spectrometer 1. During the insertion process, the upper inclined surface of the wedge block 3 cooperates with the connecting plate 18 to slide and jack it up. While the connecting plate 18 is jacked up, the pressure rod 17 and the adjusting plate 16 at its lower end drive the sealing plate 14 at the bottom end to compress the spring 15 and slide upward, so that the sealing plate 14 is completely received inside the sealing groove 8, exposing the interface 22 inside the slot 7. At the same time, the adjusting plate 16 cooperates with the sliding rod 19 and the fixed rod 20 to make the piston rod 21 at one end slide upward into the air duct 12 to compress the air inside. The compressed air is sprayed on the surface of the interface 22 through the air nozzle 13 to clean the dust adhering to the surface of the interface 22 before inserting it with the connector 4, avoiding blockage caused by excessive dust accumulation during subsequent insertion. At this time, continue to slide the interface device 5 so that the interface 22 is inserted and fixed with the connector 4. When the interface device 5 is taken out later, the sealing plate 14 slides downward under the action of the spring 15 to close the sealing groove 8, thereby protecting the internal interface 22. When connecting the interface device 5, it can expose the interface 22 by itself, and at the same time, when removing the interface device, it can seal and protect the interface 22 by itself, avoiding damage to the interface 22 on the outside of the interface device 5 due to long-term exposure to the outside when the interface device 5 is not in use.

[0037] It should be noted that the specific model and specification of the motor need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in the field, so it will not be elaborated in detail here.

[0038] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A plasma mass spectrometer interface device, comprising a mass spectrometer (1) and an interface device (5) arranged on one side of the mass spectrometer (1), characterized in that: A mounting groove (2) is provided on one side of the mass spectrometer (1), a wedge-shaped block (3) is fixedly connected to the inner wall of the mounting groove (2), and a joint (4) is installed on the inner wall below the mounting groove (2) close to the wedge-shaped block (3); One side of the interface device (5) is fixedly connected to an insert block (6), one side outer wall of the insert block (6) is provided with a slot (7), the inner wall of the slot (7) is installed with an interface (22), the inner wall of the slot (7) is provided with a sealing groove (8), both sides of the sealing groove (8) are provided with adjustment grooves (9), the inner wall of the sealing groove (8) is installed with a sealing plate (14), the upper inner wall of the sealing plate (14) is fixedly connected to a spring (15), the outer walls of both sides of the sealing plate (14) are fixedly connected to an adjustment plate (16) slidably connected to the adjustment groove (9), the upper end of the adjustment plate (16) is installed with a pressure rod (17), and the upper ends of the two pressure rods (17) are fixedly connected to a connecting plate (18).

2. The plasma mass spectrometer interface device according to claim 1, characterized in that: The inner wall of the installation groove (2) and the outer wall of the plug block (6) are slidably connected, the upper side wall of the wedge block (3) and the lower side wall of the connecting plate (18) are slidably connected, and the joint (4) and the interface (22) are plugged and fixed.

3. The plasma mass spectrometer interface device according to claim 2, characterized in that: The outer wall of the sealing plate (14) is slidably connected to the inner wall of the sealing groove (8), the side wall of one end of the spring (15) is fixedly connected to the upper inner wall of the sealing groove (8), and the outer wall of the pressure rod (17) is slidably connected to the inner wall of the plug block (6).

4. The plasma mass spectrometer interface device according to claim 1, characterized in that: A slide groove (10) is provided at the lower end of the regulating groove (9), a connecting groove (11) is provided on the inner wall of the slide groove (10) close to the lower end, an air passage (12) is provided on the inner wall of the connecting groove (11), and an air nozzle (13) is installed on the inner wall of one end of the air passage (12).

5. The plasma mass spectrometer interface device according to claim 4, characterized in that: The lower end of the adjustment plate (16) is fixedly connected to a slide rod (19) which is slidably connected to the inner wall of the slide groove (10), and the bottom end of the slide rod (19) is fixedly connected to a fixed rod (20) which is slidably connected to the inner wall of the connecting groove (11).

6. The plasma mass spectrometer interface device according to claim 5, characterized in that: The upper end of the fixed rod (20) is fixedly connected to a piston rod (21), and the outer wall of the upper end of the piston rod (21) is piston-connected to the inner wall of the airway (12).

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