Mass spectrometer introduction device

Abstract

The utility model discloses a mass spectrometer leading-in device, which belongs to the field of mass spectrometers and comprises a mass spectrometer main body, a feeding mechanism is mounted on the upper surface of the mass spectrometer main body, a sealing mechanism is mounted on one side of the upper surface of the mass spectrometer main body, and the sealing mechanism comprises a supporting ring attached to one side of the upper surface of the mass spectrometer main body. The upper surface of the supporting ring is fixedly connected with supporting rods in an annular array. Through cooperative use of the devices, the sample injection needle is inserted into the mass spectrometer main body, and the two sealing sleeves are synchronously inserted into the mass spectrometer main body, so that the two sides of the sealing sleeves are attached to the mass spectrometer main body and the sample injection needle respectively, and the joint of the mass spectrometer main body and the sample injection needle is sealed; according to the sample feeding device, external impurities are prevented from entering a sample and polluting the sample, and through the arrangement of the adjusting mechanism, the mounting plate drives the feeding tank to move upwards, so that the sample injection needle moves synchronously, and a worker can replace the sample injection needle more conveniently.

Description

Technical Field

[0001] This utility model relates to the field of mass spectrometry technology, specifically a mass spectrometer introductory device. Background Technology

[0002] A mass spectrometer is based on an ion source, a mass analyzer, and an ion detector. The ion source is a device that ionizes sample molecules under high vacuum conditions. After ionization, the molecules receive too much energy and further break down into various fragment ions and neutral particles with smaller masses. Under the action of an accelerating electric field, they acquire average kinetic energy with the same energy and enter the mass analyzer.

[0003] A search revealed Chinese Patent No. CN 213781986 U, which discloses a sample introduction device for a mass spectrometer. The device includes a mass spectrometer body with a sample inlet. An introduction mechanism is mounted above the inlet, comprising multiple injection needles filled with a detection liquid and a first driving component that moves the injection needles towards the inlet. The mechanism also includes a squeezing component for pressing the detection liquid within the injection needles into the inlet. This application improves the sample introduction efficiency of the detection liquid, reduces the possibility of errors during the sample introduction process, and enhances the accuracy of the detection results.

[0004] However, the existing technology described above still has the following problems:

[0005] Although the interaction between the pressure block and the first lead screw improves the injection efficiency of the detection liquid, reduces the possibility of errors during the injection process, and improves the accuracy of the detection liquid detection structure, the poor sealing at the connection between the mass spectrometer and the introduction device when adding samples through the introduction device may cause external foreign objects to come into contact with the sample through the connection, resulting in sample contamination. This, in turn, affects the sample operation results when the mass spectrometer is operating on the sample.

[0006] Therefore, this invention provides a mass spectrometer induction device to solve the above problems. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] This utility model provides a mass spectrometer import device, which aims to solve the problems mentioned in the background art, such as the poor sealing at the connection between the mass spectrometer and the import device during use, which may cause external foreign objects to come into contact with the sample through the connection, resulting in sample contamination and affecting the sample operation results when the mass spectrometer is operating on the sample.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the present invention provides the following technical solution: a mass spectrometer inlet device, comprising a mass spectrometer body, a feeding mechanism mounted on the upper surface of the mass spectrometer body, and a sealing mechanism mounted on one side of the upper surface of the mass spectrometer body;

[0011] The sealing mechanism includes a support ring that fits against one side of the upper surface of the mass spectrometer body. Support rods are fixedly connected in a ring array on the upper surface of the support ring. One end of several support rods is fixedly connected to a mounting plate. A feed canister is fixedly connected to the upper surface of the mounting plate. A drive mechanism is mounted on the surface of the feed canister. A threaded ring is fixedly connected to the lower surface of the mounting plate. An injection needle is threaded into the inside of the threaded ring. Movable grooves are formed on both sides of the lower surface of the mounting plate. Spring assemblies are fixedly connected inside the movable grooves. A push plate is fixedly connected to one end of the spring assembly. The push plate is slidably connected inside the movable groove. A sealing sleeve is fixedly connected to one side of the push plate. The sealing sleeve corresponds to the injection needle and is slidably connected to the lower surface of the mounting plate via the push plate. An adjustment mechanism is mounted on the lower surface of the mounting plate.

[0012] As a preferred technical solution of this application, the feeding mechanism includes two fixed plates fixedly connected to both sides of the upper surface of the mass spectrometer body. A storage tank is fixedly connected inside the two fixed plates. A delivery pipe is fixedly connected to one end of the storage tank. A first one-way valve is fixedly connected inside the delivery pipe. The delivery pipe is connected to the feeding tank.

[0013] As a preferred technical solution of this application, the driving mechanism includes a stabilizing plate fixedly connected to the upper surface of the feed tank, a driving motor fixedly connected to the surface of the stabilizing plate, a threaded rod fixedly connected to the output end of the driving motor, and a threaded cylinder that is slidably connected to the feed tank on the surface of the threaded rod.

[0014] As a preferred technical solution of this application, a sealing plate is fixedly connected to one end of the threaded cylinder, the sealing plate is slidably connected to the inside of the feed tank, a second one-way valve is fixedly connected to the inside of the threaded ring, the second one-way valve corresponds to the injection needle, and an observation window is provided on the surface of the feed tank.

[0015] As a preferred technical solution of this application, the adjustment mechanism includes an electric push rod fixedly connected to the upper surface of the mass spectrometer body. The output end of the electric push rod is attached to a flip plate. The flip plate is rotatably connected to the mass spectrometer body through a rotating shaft. One side of the upper surface of the flip plate is attached to one side of the lower surface of the mounting plate.

[0016] As a preferred technical solution of this application, the adjustment mechanism further includes a guide rod that is slidably inserted into the surface of the mounting plate. A support block is fixedly connected to the surface of the guide rod. The support block is in contact with the other side of the lower surface of the mounting plate. The guide rod corresponds to the flip plate.

[0017] (III) Beneficial Effects

[0018] By incorporating a feeding mechanism, sealing mechanism, driving mechanism, and adjustment mechanism, the injection needle is inserted into the interior of the mass spectrometer body. This allows two sealing sleeves to be inserted simultaneously into the mass spectrometer body, ensuring that both sides of the sealing sleeves fit snugly against the mass spectrometer body and the injection needle, sealing the connection between the mass spectrometer body and the injection needle. This prevents external debris from entering the sample and contaminating it. Furthermore, the adjustment mechanism allows the mounting plate to move the feeding container upwards, causing the injection needle to move synchronously, making it easier for staff to replace the injection needle.

[0019] The drive motor is started, causing the threaded cylinder to slide the sealing plate inside the feed tank. The sealing plate pushes the sample inside the feed tank into the mass spectrometer body through the injection needle. After the sample inside the feed tank is used, the threaded cylinder automatically resets, thereby resetting the sealing plate and changing the air pressure inside the feed tank. The sample inside the storage tank is then drawn into the feed tank through the delivery tube, making sample use more convenient and avoiding the need for staff to change samples multiple times, which would reduce the sample introduction efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a mass spectrometer induction device.

[0021] Figure 2 This is a schematic diagram of the feeding mechanism in a mass spectrometer induction device;

[0022] Figure 3 This is a schematic diagram of a sealing mechanism in a mass spectrometer inlet device;

[0023] Figure 4 This is a schematic diagram of the adjustment mechanism in a mass spectrometer inlet device.

[0024] In the picture:

[0025] 1. Mass spectrometer body; 2. Support ring; 3. Support rod; 4. Mounting plate; 5. Feed tank; 6. Threaded ring; 7. Injection needle; 8. Movable groove; 9. Spring assembly; 10. Push plate; 11. Sealing sleeve; 12. Fixing plate; 13. Storage tank; 14. Delivery pipe; 15. First check valve; 16. Stabilizing plate; 17. Drive motor; 18. Threaded rod; 19. Threaded cylinder; 20. Sealing plate; 21. Second check valve; 22. Electric push rod; 23. Tilting plate; 24. Guide rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a mass spectrometer induction device, such as... Figures 1-4 As shown, a mass spectrometer introduction device includes a mass spectrometer body 1. A sealing mechanism is installed on one side of the upper surface of the mass spectrometer body 1. The sealing mechanism includes a support ring 2 that fits against one side of the upper surface of the mass spectrometer body 1. Support rods 3 are fixedly connected to the upper surface of the support ring 2 in a ring array. Through the cooperation between the support ring 2 and the support rods 3, the mounting plate 4 is more stable when sliding.

[0028] A mounting plate 4 is fixedly connected to one end of several support rods 3. A feed tank 5 is fixedly connected to the upper surface of the mounting plate 4. A drive mechanism is installed on the surface of the feed tank 5. A threaded ring 6 is fixedly connected to the lower surface of the mounting plate 4. A sample injection needle 7 is threadedly connected inside the threaded ring 6. Movable grooves 8 are provided on both sides of the lower surface of the mounting plate 4. A spring assembly 9 is fixedly connected inside the movable groove 8. A push plate 10 is fixedly connected to one end of the spring assembly 9. The push plate 10 is slidably connected inside the movable groove 8. A sealing sleeve 11 is fixedly connected to the side, and the sealing sleeve 11 corresponds to the injection needle 7. The sealing sleeve 11 is slidably connected to the lower surface of the mounting plate 4 through the push plate 10. The injection needle 7 is inserted into the inside of the mass spectrometer body 1, so that the sealing sleeve 11 is simultaneously inserted into the inside of the mass spectrometer body 1. Through the elastic force of the spring assembly 9, the push plate 10 slides inside the movable groove 8, so that the two sides of the sealing sleeve 11 are respectively in contact with the mass spectrometer body 1 and the injection needle 7, sealing the connection between the mass spectrometer body 1 and the injection needle 7.

[0029] A feeding mechanism is installed on the upper surface of the mass spectrometer body 1. The feeding mechanism includes two fixed plates 12 fixedly connected to both sides of the upper surface of the mass spectrometer body 1. A storage tank 13 is fixedly connected inside the two fixed plates 12. A delivery pipe 14 is fixedly connected to one end of the storage tank 13. A first one-way valve 15 is fixedly connected inside the delivery pipe 14. By setting the first one-way valve 15, the sample inside the storage tank 13 can only enter the inside of the feeding tank 5 through the delivery pipe 14, and the sample inside the feeding tank 5 cannot enter the inside of the storage tank 13.

[0030] The conveying pipe 14 is connected to the feed tank 5. The driving mechanism includes a stabilizing plate 16 fixedly connected to the upper surface of the feed tank 5. A drive motor 17 is fixedly connected to the surface of the stabilizing plate 16. A threaded rod 18 is fixedly connected to the output end of the drive motor 17. A threaded cylinder 19, which is slidably connected to the feed tank 5, is threadedly connected to the surface of the threaded rod 18. A sealing plate 20 is fixedly connected to one end of the threaded cylinder 19. The sealing plate 20 is slidably connected to the inside of the feed tank 5. When the drive motor 17 is started, its output end drives the threaded rod 18 to rotate, causing the threaded cylinder 19 to rotate. 9 slides inside the feed tank 5, causing the sealing plate 20 to slide synchronously, thereby changing the air pressure inside the feed tank 5. The sample inside the feed tank 5 is pushed into the mass spectrometer body 1 through the injection needle 7. The mass spectrometer body 1 operates on the sample. The threaded ring 6 is fixedly connected to the inside of the second one-way valve 21, which corresponds to the injection needle 7. The setting of the second one-way valve 21 ensures that the sample inside the feed tank 5 can only enter the inside of the injection needle 7 through the feed tank 5, and the sample cannot enter the inside of the feed tank 5 through the injection needle 7.

[0031] The surface of the feed tank 5 is provided with an observation window. After the sealing plate 20 is pushed, the reverse rotation of the threaded cylinder 19 causes the sealing plate 20 to slide upward inside the feed tank 5, changing the air pressure inside the feed tank 5. Thus, through the setting of the conveying pipe 14, the sample inside the storage tank 13 is drawn into the feed tank 5, thereby automatically replenishing the sample inside the feed tank 5.

[0032] An adjustment mechanism is installed on the lower surface of the mounting plate 4. The adjustment mechanism includes an electric push rod 22 fixedly connected to the upper surface of the mass spectrometer body 1. The output end of the electric push rod 22 is attached to a flip plate 23. The flip plate 23 is rotatably connected to the mass spectrometer body 1 via a rotating shaft. One side of the upper surface of the flip plate 23 is attached to one side of the lower surface of the mounting plate 4. When the electric push rod 22 is activated, its output end drives one side of the upper surface of the flip plate 23. Through the setting of the rotating shaft, the other side of the upper surface of the flip plate 23 pushes the mounting plate 4 upward, thereby causing the mounting plate 4 to drive the injection needle 7 and the sealing sleeve 11 to move synchronously. Then, the injection needle 7 is rotated to disengage it from the threaded ring 6, completing the disassembly of the injection needle 7, thus making the replacement of the injection needle 7 more convenient.

[0033] The adjustment mechanism also includes a guide rod 24 that is slidably inserted into the surface of the mounting plate 4. A support block is fixedly connected to the surface of the guide rod 24. The support block is in contact with the other side of the lower surface of the mounting plate 4. The guide rod 24 corresponds to the flip plate 23. The mounting plate 4 is guided by the guide rod 24, so that the mounting plate 4 is more stable when sliding.

[0034] Specifically, when the mass spectrometer induction device is in use: the injection needle 7 is inserted into the inside of the mass spectrometer body 1, so that the sealing sleeve 11 is simultaneously inserted into the inside of the mass spectrometer body 1. Through the elastic force of the spring assembly 9, the push plate 10 slides inside the movable groove 8, so that the two sides of the sealing sleeve 11 are respectively in contact with the mass spectrometer body 1 and the injection needle 7, sealing the connection between the mass spectrometer body 1 and the injection needle 7, thereby preventing external foreign matter from entering the sample and causing sample contamination;

[0035] Then, the drive motor 17 is started, causing its output end to drive the threaded rod 18 to rotate, which causes the threaded cylinder 19 to slide inside the feed tank 5, driving the sealing plate 20 to slide synchronously, thereby changing the air pressure inside the feed tank 5. The sample inside the feed tank 5 is pushed into the mass spectrometer body 1 through the injection needle 7. The mass spectrometer body 1 operates on the sample. At the same time, after the sealing plate 20 is pushed, the reverse rotation of the threaded cylinder 19 causes the sealing plate 20 to slide upward inside the feed tank 5, changing the air pressure inside the feed tank 5. Thus, through the setting of the delivery pipe 14, the sample inside the storage tank 13 is drawn into the feed tank 5, thereby automatically replenishing the sample inside the feed tank 5 and avoiding the reduction of sample introduction efficiency caused by the staff changing the sample multiple times.

[0036] When the injection needle 7 needs to be replaced, start the electric push rod 22, so that its output end drives one side of the upper surface of the flip plate 23. Through the setting of the rotating shaft, the other side of the upper surface of the flip plate 23 pushes the mounting plate 4 upward, so that the mounting plate 4 drives the injection needle 7 and the sealing sleeve 11 to move synchronously. Then rotate the injection needle 7 to disengage it from the threaded ring 6, thus completing the disassembly of the injection needle 7 and making the replacement of the injection needle 7 more convenient.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mass spectrometer induction device, comprising a mass spectrometer body (1), characterized in that: A feeding mechanism is installed on the upper surface of the mass spectrometer body (1), and a sealing mechanism is installed on one side of the upper surface of the mass spectrometer body (1). The sealing mechanism includes a support ring (2) that fits against one side of the upper surface of the mass spectrometer body (1). Support rods (3) are fixedly connected to the upper surface of the support ring (2) in a ring array. One end of several support rods (3) is fixedly connected to a mounting plate (4). A feed canister (5) is fixedly connected to the upper surface of the mounting plate (4). A driving mechanism is mounted on the surface of the feed canister (5). A threaded ring (6) is fixedly connected to the lower surface of the mounting plate (4). A sample injection needle (7) is threaded into the internal part of the threaded ring (6). The lower surface of the mounting plate (4)... Movable grooves (8) are provided on both sides of the surface. A spring assembly (9) is fixedly connected inside the movable groove (8). A push plate (10) is fixedly connected to one end of the spring assembly (9). The push plate (10) is slidably connected inside the movable groove (8). A sealing sleeve (11) is fixedly connected to one side of the push plate (10). The sealing sleeve (11) corresponds to the injection needle (7). The sealing sleeve (11) is slidably connected to the lower surface of the mounting plate (4) through the push plate (10). An adjustment mechanism is installed on the lower surface of the mounting plate (4).

2. The mass spectrometer induction device according to claim 1, characterized in that: The feeding mechanism includes two fixed plates (12) fixedly connected to both sides of the upper surface of the mass spectrometer body (1). The two fixed plates (12) are fixedly connected to a storage tank (13). One end of the storage tank (13) is fixedly connected to a delivery pipe (14). The delivery pipe (14) is fixedly connected to a first one-way valve (15). The delivery pipe (14) is connected to the feeding tank (5).

3. The mass spectrometer induction device according to claim 1, characterized in that: The driving mechanism includes a stabilizing plate (16) fixedly connected to the upper surface of the feed tank (5), a driving motor (17) fixedly connected to the surface of the stabilizing plate (16), a threaded rod (18) fixedly connected to the output end of the driving motor (17), and a threaded cylinder (19) that is slidably connected to the feed tank (5) is threadedly connected to the surface of the threaded rod (18).

4. The mass spectrometer induction device according to claim 3, characterized in that: A sealing plate (20) is fixedly connected to one end of the threaded cylinder (19). The sealing plate (20) is slidably connected to the inside of the feed tank (5). A second one-way valve (21) is fixedly connected inside the threaded ring (6). The second one-way valve (21) corresponds to the injection needle (7). An observation window is provided on the surface of the feed tank (5).

5. The mass spectrometer induction device according to claim 1, characterized in that: The adjustment mechanism includes an electric push rod (22) fixedly connected to the upper surface of the mass spectrometer body (1). The output end of the electric push rod (22) is attached to a flip plate (23). The flip plate (23) is rotatably connected to the mass spectrometer body (1) through a rotating shaft. One side of the upper surface of the flip plate (23) is attached to one side of the lower surface of the mounting plate (4).

6. The mass spectrometer induction device according to claim 5, characterized in that: The adjustment mechanism also includes a guide rod (24) that is slidably inserted into the surface of the mounting plate (4). A support block is fixedly connected to the surface of the guide rod (24). The support block is in contact with the other side of the lower surface of the mounting plate (4). The guide rod (24) corresponds to the flip plate (23).

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