A mass spectrometer with cleaning structure

Abstract

The present invention relates to the field of mass spectrometers, and in particular to a mass spectrometer with a cleaning structure, comprising a mass spectrometer body, a recovery cabin being arranged in the mass spectrometer body, a removable recovery box being arranged at the bottom of the recovery cabin, and a lifting movable cover being arranged on the top of the recovery cabin, a transfer box being installed through the movable cover, and a partition plate being installed in the transfer box by rotating through a rotating shaft, a curved pipe being connected to the side of the transfer box, and a piston rod whose position is controlled by magnetic force being arranged in the curved pipe, and an upper bracket and a lower bracket being fixedly installed on the inner walls of both sides of the recovery box respectively, a control structure being arranged on the upper bracket, and a retractable water seal structure being arranged on the lower bracket, when the movable cover moves downward and passes through the upper bracket, the partition plate is used to separate the space in the transfer box and the piston rod is moved outward in the curved pipe through the control structure, so as to achieve the purpose of automatically cleaning a circulation pipeline of cleaning liquid to avoid residue and water sealing a pipeline opening to avoid steam reflux.

Description

Technical Field

[0001] The invention relates to the technical field of mass spectrometers, in particular to a mass spectrometer with a cleaning structure. Background Art

[0002] Mass spectrometers are widely used instruments in analytical chemistry, biochemistry, and other fields to separate, identify, and quantify compounds in samples. Existing mass spectrometers have some problems after long-term operation, especially in high sample throughput applications. One of them is the contamination and clogging of instrument components, which can lead to inaccurate data, high instrument maintenance costs, and reduced analytical efficiency. The process of cleaning the instrument involves downtime, and cleaning in traditional instruments usually requires manual operations and operator intervention, which not only increases the possibility of human error, but also reduces the level of automation of the analysis.

[0003] Therefore, more advanced mass spectrometers are usually equipped with cleaning structures that can automatically clean the structures inside the mass spectrometer and recycle the cleaning liquid. However, the cleaning liquid is generally not disposed of quickly every time. The recovered liquid will evaporate and return to the instrument through the pipeline, affecting the detection accuracy of the mass spectrometer. At the same time, liquid is easily retained in the current cleaning structure pipeline. If reflux occurs, it will cause damage to the equipment. Summary of the invention

[0004] The object of the present invention is to provide a mass spectrometer with a cleaning structure to automatically clean the cleaning liquid circulation pipeline to avoid residue and water seal the pipeline opening to avoid steam reflux, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mass spectrometer with a cleaning structure, comprising a mass spectrometer body, a recovery cabin is arranged in the mass spectrometer body, and the recovery cabin is located below the cleaning structure, a removable recovery box is arranged at the bottom of the recovery cabin, and a lifting movable cover is arranged on the top of the recovery cabin, a sealing ring is fixedly installed on the movable cover, a transfer box is installed through the movable cover, and the upper and lower ends of the transfer box are respectively connected with a telescopic tube and a downflow pipe, the telescopic tube is connected with the cleaning structure, and a partition plate is rotatably installed in the transfer box through a rotating shaft, and the side of the transfer box A curved pipe is connected, and a piston rod whose position is controlled by magnetic force is arranged in the curved pipe. A partition plate is fixedly installed in the recovery box, and an upper bracket and a lower bracket are fixedly installed on the inner walls on both sides of the recovery box respectively, and the installation height of the upper bracket is higher than that of the lower bracket. A control structure is arranged on the upper bracket, and a retractable water seal structure is arranged on the lower bracket. When the movable cover moves down and passes through the upper bracket, the partition plate cuts off the space inside the transfer box and the piston rod moves outward in the curved pipe through the control structure. When the movable cover moves down to the lower bracket, the water seal structure on the lower bracket can automatically extend to perform water sealing on the downstream pipe.

[0006] Preferably, the recovery cabin is installed at the bottom position of the mass spectrometer body, and a track is provided in the recovery cabin. Movable feet are installed on the bottom surface of the recovery box, and the recovery box is installed by connecting the movable feet with the track.

[0007] Preferably, a hydraulic rod is provided on the top of the recovery cabin, and the movable cover is hoisted by the hydraulic rod, the sealing ring is an elastic rubber ring, and the sealing ring is arranged on the outer walls around the movable cover, and at least three transfer boxes are arranged in a straight line on the movable cover, respectively corresponding to different cavities separated by the partition plate, and the downflow pipe is located above the cavity.

[0008] Preferably, the rotating shaft is installed in a through-type manner on one side of the transfer box, and a damper is provided at the rotating shaft installation position, and the partition plate is located in the transfer box, and a gear is fixedly installed on the end of the rotating shaft, a vertical rack is fixedly installed on the upper bracket, and a through groove for the gear to pass through is provided on the upper bracket.

[0009] Preferably, the bent pipe is an L-shaped pipe, and the piston rod is arranged in the direction of the upper bracket, a first magnetic block is fixedly installed on the end of the piston rod, a bottom rod is fixedly installed on the upper bracket, and a magnetic structure with adjustable magnetic pole direction is arranged on the bottom rod.

[0010] Preferably, a rotating seat is rotatably mounted on the bottom rod, and the rotating seat is connected to the motor shaft of the adjusting motor, and a second magnetic block is arranged on the rotating seat.

[0011] Preferably, a guide groove is fixedly installed on the lower bracket, and a slide seat is slidably installed in the guide groove, a limit spring is fixedly connected to the slide seat, and a water seal box is fixedly installed on the slide seat via an end rod.

[0012] Preferably, the lower bracket is arranged horizontally, and the guide groove is installed on the top surface of the lower bracket, the limit spring and the end rod are respectively connected to both sides of the slide seat, and the water seal box is filled with water seal liquid.

[0013] Preferably, an oblique pressure block is fixedly mounted on the top surface of the slide seat, a side rod is fixedly connected to the transfer box, and a pressure block is arranged at the end of the side rod.

[0014] Preferably, the top surface of the oblique pressure block is an inclined surface, and the side rods and the rotating shaft are respectively located on both sides of the transfer box, and the pressure block is located above the oblique pressure block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The mass spectrometer of the present invention is not only provided with an automatic cleaning structure capable of cleaning important parts, but also provided with a recovery box in the main body of the mass spectrometer for recycling the cleaning liquid to prevent the cleaning liquid from affecting the use of the mass spectrometer. At the same time, a movable cover is provided, and the movable cover is used to install a pipeline structure, and the pipeline structure is connected to the cleaning structure, so that the cleaning liquid is sent to the recovery box through the pipeline structure on the movable cover. The movable cover can also change the working mode of the pipeline structure by lifting and lowering, ensuring that the cleaning liquid can flow into the recovery box as much as possible to prevent it from flowing back and evaporating in the pipeline.

[0017] 2. The movable cover in the present invention can be automatically raised and lowered according to the progress of the cleaning work. After the cleaning work is completed, the movable cover is sunk into the recovery box by the hydraulic rod, and the transfer box passes through the positions of the upper bracket and the lower bracket in sequence. As the movable cover moves downward, the transfer box first moves to the upper bracket, and the partition plate therein can automatically switch from a vertical state to a horizontal state, dividing the space in the transfer box into an upper and lower layer, and the downflow pipe and the cleaning structure are separated. Subsequently, as the transfer box continues to move, the curved pipe on it will also pass through the upper bracket, and the piston rod moves outward in the curved pipe to generate negative pressure. Since the lower part of the transfer box is closed at this time, the negative pressure generated can promote the downward flow of the cleaning liquid in the telescopic tube and the cleaning structure to prevent liquid from remaining in the pipeline. The cleaning liquid can be sucked into the transfer box and the curved pipe, both of which are at a lower position, and the cleaning liquid is not easy to flow back to the important structure of the mass spectrometer, and the turning structure of the curved pipe can reduce the possibility of reflux and evaporation.

[0018] 3. After the control structure of the upper bracket is used to clean the residual cleaning liquid in the pipeline, the transfer box can continue to move downward with the movable cover. When it moves to the position of the lower bracket, the water seal structure on the lower bracket is used to seal the downstream pipe to prevent the cleaning liquid in the recovery box from evaporating and entering the mass spectrometer from the pipeline. In the present invention, deionized water is arranged in the water seal box, and the evaporation of deionized water will not affect the detection accuracy of the mass spectrometer. The water seal box adopts a telescopic structure. Only when the movable cover is moved downward, the water seal box will extend to contact the downstream pipe for sealing. When cleaning, the water seal box will retract to prevent the cleaning liquid flowing out of the downstream pipe from contaminating the deionized water. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the mass spectrometer structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the mass spectrometer recovery door of the present invention in an open state.

[0021] Figure 3 This is a first schematic diagram of the recycling box structure of the present invention.

[0022] Figure 4 This is a second schematic diagram of the recycling box structure of the present invention.

[0023] Figure 5 It is a schematic diagram of the movable cover structure of the present invention.

[0024] Figure 6 It is a first schematic diagram of the transfer box structure of the present invention.

[0025] Figure 7 This is a second schematic diagram of the transfer box structure of the present invention.

[0026] Figure 8 It is a schematic diagram of the structure inside the recycling box of the present invention.

[0027] Fig. 9 It is a schematic diagram of the double-bracket structure of the present invention.

[0028] Fig.10 It is a schematic diagram of the positions of the transfer box and the double-bracket structure of the present invention.

[0029] In the figure: mass spectrometer body 1, recovery cabin 2, recovery box 3, track 4, movable support foot 5, hydraulic rod 6, movable cover 7, sealing ring 8, transfer box 9, telescopic tube 10, downflow pipe 11, rotating shaft 12, partition plate 13, gear 14, elbow 15, piston rod 16, first magnetic block 17, side rod 18, pressure block 19, partition plate 20, upper bracket 21, vertical rack 22, bottom rod 23, rotating seat 24, adjusting motor 25, second magnetic block 26, lower bracket 27, guide groove 28, slide seat 29, limit spring 30, end rod 31, water seal box 32, oblique pressure block 33. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 10 The present invention provides a technical solution: a mass spectrometer with a cleaning structure, comprising a mass spectrometer body 1, a recovery cabin 2 is arranged in the mass spectrometer body 1, and the recovery cabin 2 is located below the cleaning structure, a removable recovery box 3 is arranged at the bottom of the recovery cabin 2, and a lifting movable cover 7 is arranged on the top of the recovery cabin 2, a sealing ring 8 is fixedly installed on the movable cover 7, a transfer box 9 is installed through the movable cover 7, and the upper and lower ends of the transfer box 9 are respectively connected with a telescopic pipe 10 and a downflow pipe 11, the telescopic pipe 10 is connected with the cleaning structure, and a partition plate 13 is rotatably installed in the transfer box 9 through a rotating shaft 12, a bend pipe 15 is connected to the side of the transfer box 9, and the bend pipe 15 A piston rod 16 whose position is controlled by magnetic force is provided in the middle, a partition plate 20 is fixedly installed in the recovery box 3, and an upper bracket 21 and a lower bracket 27 are fixedly installed on the inner walls on both sides of the recovery box 3, and the upper bracket 21 is installed at a higher height than the lower bracket 27, a control structure is provided on the upper bracket 21, and a retractable water seal structure is provided on the lower bracket 27. When the movable cover 7 moves down and passes through the upper bracket 21, the partition plate 13 is separated from the space inside the transfer box 9 and the piston rod 16 is moved outward in the bent pipe 15 through the control structure. When the movable cover 7 moves down to the lower bracket 27, the water seal structure on the lower bracket 27 can be automatically extended to perform water sealing on the downstream pipe 11.

[0032] The recovery cabin 2 is installed at the bottom of the mass spectrometer body 1, and a track 4 is provided in the recovery cabin 2. A movable support foot 5 is installed on the bottom surface of the recovery box 3, and the recovery box 3 is installed by connecting the movable support foot 5 with the track 4.

[0033] The mass spectrometer of the present invention is not only provided with an automatic cleaning structure capable of cleaning important parts to save time and cost, but also a recovery cabin 2 is provided in the mass spectrometer body 1, on which a recovery box 3 can be installed to recover the cleaning liquid and prevent the cleaning liquid from affecting the use of the mass spectrometer. The recovery box 3 is installed by means of movable legs 5 and tracks 4, and can be pulled out from the recovery cabin 2 for dumping when necessary.

[0034] A hydraulic rod 6 is provided on the top of the recovery cabin 2, and the movable cover 7 is hoisted by the hydraulic rod 6. The sealing ring 8 is an elastic rubber ring, and the sealing ring 8 is arranged on the outer walls around the movable cover 7. There are at least three transfer boxes 9 arranged in a straight line on the movable cover 7, which correspond to different cavities separated by the partition plate 20, and the downflow pipe 11 is located above the cavity.

[0035] A movable cover 7 is also provided in the recovery cabin 2. The movable cover 7 is used to install a pipeline structure. The pipeline structure is connected to the cleaning structure, so that the cleaning liquid is sent to the recovery box 3 through the pipeline structure on the movable cover 7. The movable cover 7 can also change the working mode of the pipeline structure by lifting and lowering to ensure that the cleaning liquid can flow into the recovery box 3 as much as possible to prevent it from flowing back and evaporating.

[0036] During cleaning, the hydraulic rod 6 controls the movable cover 7 to be located at the top position of the recovery box 3, and the sealing ring 8 can seal the recovery box 3. At this time, the cleaning liquid enters the transfer box 9 from the telescopic tube 10, and then flows into the recovery box 3 from the downflow pipe 11 at the bottom of the transfer box 9.

[0037] The rotating shaft 12 is installed in a through-type manner on one side of the transfer box 9, and a damper is provided at the installation position of the rotating shaft 12, and the partition plate 13 is located in the transfer box 9, and a gear 14 is fixedly installed at the end of the rotating shaft 12, a vertical rack 22 is fixedly installed on the upper bracket 21, and a through groove for the gear 14 to pass through is provided on the upper bracket 21.

[0038] After the cleaning work is completed, the movable cover 7 can be sunk into the recovery box 3 by the hydraulic rod 6, and the transfer box 9 passes through the positions of the upper bracket 21 and the lower bracket 27 in sequence.

[0039] The bent pipe 15 is an L-shaped pipe, and the piston rod 16 is arranged toward the upper bracket 21. The end of the piston rod 16 is fixedly mounted with a first magnetic block 17. The upper bracket 21 is fixedly mounted with a bottom rod 23, and the bottom rod 23 is provided with a magnetic structure with adjustable magnetic pole direction.

[0040] As the movable cover 7 moves downward, the transfer box 9 first moves to the upper bracket 21, and the gear 14 on the rotating shaft 12 can engage with the vertical rack 22. Under the action of the vertical rack 22, the gear 14 drives the rotating shaft 12 to rotate, so that the partition plate 13 switches from a vertical state to a horizontal state, dividing the space in the transfer box 9 into an upper and lower layer, and the downflow pipe 11 is separated from the cleaning structure. Subsequently, as the transfer box 9 continues to move, the curved pipe 15 will also pass through the upper bracket 21.

[0041] A rotating seat 24 is rotatably mounted on the bottom rod 23 , and the rotating seat 24 is connected to the motor shaft of the adjusting motor 25 . A second magnetic block 26 is disposed on the rotating seat 24 .

[0042] When the transfer box 9 moves downward, the second magnetic block 26 can generate a magnetic attraction force on the first magnetic block 17, so that the piston rod 16 moves outward in the curved pipe 15, and negative pressure is generated in the curved pipe 15. Since the lower part of the transfer box 9 is closed at this time, the generated negative pressure can promote the telescopic tube 10 and the cleaning liquid in the cleaning structure to flow downward, preventing liquid from remaining in the pipeline. The cleaning liquid can be sucked into the transfer box 9 and the curved pipe 15. Both are at a lower position, and the cleaning liquid is not easy to flow back to the important structure of the mass spectrometer, and the turning structure of the curved pipe 15 can reduce the possibility of reflux and evaporation. In the process of the transfer box 9 moving up and resetting, the adjustment motor 25 drives the rotating seat 24 to rotate, so that the second magnetic block 26 changes direction, which can generate a magnetic repulsion force on the first magnetic block 17, so that the piston rod 16 moves inward, and the liquid in the curved pipe 15 is sent into the transfer box 9. Then the partition plate 13 is opened, and the residual cleaning liquid can fall into the recovery box 3.

[0043] A guide groove 28 is fixedly mounted on the lower bracket 27 , and a slide seat 29 is slidably mounted in the guide groove 28 . A limit spring 30 is fixedly connected to the slide seat 29 , and a water seal box 32 is fixedly mounted on the slide seat 29 via an end rod 31 .

[0044] After using the upper bracket 21 to clean the residual cleaning liquid in the pipeline, the transfer box 9 can continue to move downward with the movable cover 7. When it moves to the position of the lower bracket 27, the water seal structure on the lower bracket 27 can be used to close the downstream pipe 11 to prevent the cleaning liquid in the recovery box 3 from evaporating and entering the mass spectrometer from the pipeline.

[0045] The lower bracket 27 is arranged horizontally, and the guide groove 28 is installed on the top surface of the lower bracket 27 . The limit spring 30 and the end rod 31 are respectively connected to the two sides of the slide seat 29 , and the water seal box 32 is filled with water seal liquid.

[0046] In the present invention, deionized water is arranged in the water seal box 32, and the water seal box 32 will not affect the detection accuracy of the mass spectrometer after evaporation. The water seal box 32 adopts a telescopic structure. Only when the movable cover 7 moves downward, the water seal box 32 will extend to contact the downflow pipe 11 to seal it. When cleaning, the water seal box 32 will retract to prevent the cleaning liquid flowing out of the downflow pipe 11 from contaminating the deionized water.

[0047] An oblique pressure block 33 is fixedly mounted on the top surface of the slide seat 29 , a side rod 18 is fixedly connected to the transfer box 9 , and a pressure block 19 is provided at the end of the side rod 18 .

[0048] The top surface of the oblique pressure block 33 is an inclined surface, and the side rod 18 and the rotating shaft 12 are respectively located on both sides of the transfer box 9 , and the pressure block 19 is located above the oblique pressure block 33 .

[0049] When the transfer box 9 moves to the lower bracket 27, the pressure block 19 installed on it through the side rod 18 can move to the inclined pressure block 33, generating an inclined pressure, so that the slide 29 overcomes the elastic force of the limit spring 30 and moves along the guide groove 28, and the water seal box 32 moves accordingly, and the downflow pipe 11 can be inserted into the water seal box 32 to complete the automatic water seal work and prevent the cleaning liquid vapor from flowing back.

[0050] When the present invention is in use: firstly, the mass spectrometer of the present invention is not only provided with an automatic cleaning structure capable of cleaning important parts, saving time and cost, but also provided with a recovery cabin 2 in the main body 1 of the mass spectrometer, capable of installing a recovery box 3, for recycling the cleaning liquid, and preventing the cleaning liquid from affecting the use of the mass spectrometer. The recovery box 3 is installed by means of movable legs 5 and tracks 4, and can be drawn out from the recovery cabin 2 for dumping when necessary. The recovery cabin 2 is also provided with a movable cover 7, and the movable cover 7 is used to install a pipeline structure, and the pipeline structure is connected with the cleaning structure, so that the cleaning liquid is sent into the recovery box 3 through the pipeline structure on the movable cover 7. The movable cover 7 can also change the working mode of the pipeline structure by lifting and lowering, so as to ensure that the cleaning liquid can flow into the recovery box 3 as much as possible. The recycling box 3 is cleaned by the hydraulic rod 6, and the movable cover 7 is just located at the top position of the recycling box 3 to prevent it from backflowing and evaporating. During cleaning, the hydraulic rod 6 controls the movable cover 7 to be located at the top position of the recycling box 3, and the sealing ring 8 can seal the recycling box 3. At this time, the cleaning liquid enters the transfer box 9 from the telescopic tube 10, and then flows into the recycling box 3 from the downflow pipe 11 at the bottom of the transfer box 9. After the cleaning work is completed, the movable cover 7 can be sunk into the recycling box 3 by the hydraulic rod 6. The transfer box 9 passes through the positions of the upper bracket 21 and the lower bracket 27 in turn. As the movable cover 7 moves downward, the transfer box 9 first moves to the upper bracket 21, and the gear 14 on the rotating shaft 12 can mesh with the vertical rack 22. Under the action of the vertical rack 22, the gear 14 drives the rotating shaft 12 to rotate, so that the partition plate 13 is switched from a vertical state to a horizontal state, and the transfer The space inside the box 9 is divided into two layers, the lower layer and the lower layer. The downflow pipe 11 is separated from the cleaning structure. Then, as the transfer box 9 continues to move, the curved pipe 15 will also pass through the upper bracket 21. When the transfer box 9 moves downward, the second magnetic block 26 can generate a magnetic attraction on the first magnetic block 17, so that the piston rod 16 moves outward in the curved pipe 15, generating a negative pressure in the curved pipe 15. Since the lower part of the transfer box 9 is closed at this time, the generated negative pressure can promote the telescopic tube 10 and the cleaning liquid in the cleaning structure to flow downward, preventing liquid from remaining in the pipeline. The cleaning liquid can be sucked into the transfer box 9 and the curved pipe 15. Both are at a lower position, and the cleaning liquid is not easy to flow back to the important structure of the mass spectrometer. In addition, the turning structure of the curved pipe 15 can reduce the possibility of reflux and evaporation. During the upward reset process, the adjusting motor 25 drives the rotating seat 24 to rotate, so that the second magnetic block 26 changes direction, which can generate magnetic repulsion on the first magnetic block 17, so that the piston rod 16 moves inward, and the liquid in the curved pipe 15 is sent to the transfer box 9. Then the partition plate 13 is opened, and the residual cleaning liquid can fall into the recovery box 3. After the cleaning liquid remaining in the pipeline is cleaned by the upper bracket 21, the transfer box 9 can continue to move downward with the movable cover 7. When it moves to the position of the lower bracket 27, the water seal structure on the lower bracket 27 can be used to seal the downstream pipe 11 to prevent the cleaning liquid in the recovery box 3 from evaporating and entering the mass spectrometer from the pipeline. In the present invention, deionized water is arranged in the water seal box 32, and its evaporation will not affect the detection accuracy of the mass spectrometer.The water seal box 32 adopts a telescopic structure. Only when the movable cover 7 moves down, the water seal box 32 will extend to contact the downflow pipe 11 to seal it. When cleaning, the water seal box 32 will retract to prevent the cleaning liquid flowing out of the downflow pipe 11 from contaminating the deionized water. When the transfer box 9 moves to the lower bracket 27, the pressure block 19 installed on it through the side rod 18 can move to the oblique pressure block 33, generating an inclined pressure, so that the slide seat 29 overcomes the elastic force of the limit spring 30 and moves along the guide groove 28, and the water seal box 32 moves accordingly, and the downflow pipe 11 can be inserted into the water seal box 32, completing the automatic water sealing work and preventing the backflow of cleaning liquid steam.

[0051] The above-mentioned embodiments are only preferred embodiments of the present invention, and cannot be used to limit the scope of protection of the present invention. Various changes made by ordinary technicians in this field based on the above-mentioned concepts without creative work all fall within the scope of protection of the present invention.

Claims

1. A mass spectrometer with a cleaning structure, comprising a mass spectrometer body (1), characterized in that: The mass spectrometer body (1) is provided with a recovery cabin (2), and the recovery cabin (2) is located below the cleaning structure. A removable recovery box (3) is provided at the bottom of the recovery cabin (2), and a lifting movable cover (7) is provided at the top of the recovery cabin (2). A sealing ring (8) is fixedly installed on the movable cover (7). A transfer box (9) is installed through the movable cover (7), and the upper and lower ends of the transfer box (9) are respectively connected with a telescopic tube (10) and a downflow tube (11), the telescopic tube (10) is connected with the cleaning structure, and a partition plate (13) is rotatably installed in the transfer box (9) through a rotating shaft (12), and a curved pipe (15) is connected to the side of the transfer box (9), and a piston rod for magnetically controlling the position is provided in the curved pipe (15). (16), a partition plate (20) is fixedly installed in the recovery box (3), and an upper bracket (21) and a lower bracket (27) are fixedly installed on the inner walls of both sides of the recovery box (3), and the installation height of the upper bracket (21) is higher than that of the lower bracket (27). A control structure is provided on the upper bracket (21), and a retractable water seal structure is provided on the lower bracket (27). When the movable cover (7) moves down and passes through the upper bracket (21), the partition plate (13) is separated from the space inside the transfer box (9) and the piston rod (16) is moved outward in the curved pipe (15) through the control structure. When the movable cover (7) moves down to the lower bracket (27), the water seal structure on the lower bracket (27) can be automatically extended to perform water sealing on the downstream pipe (11); The rotating shaft (12) is installed in a through-type manner on one side of the transfer box (9), and a damper is provided at the installation position of the rotating shaft (12), and the partition plate (13) is located in the transfer box (9), and a gear (14) is fixedly installed at the end of the rotating shaft (12), and a vertical rack (22) is fixedly installed on the upper bracket (21), and a through groove for the gear (14) to pass through is provided on the upper bracket (21); The bent pipe (15) is an L-shaped pipe, and the piston rod (16) is arranged in the direction of the upper bracket (21), a first magnetic block (17) is fixedly installed on the end of the piston rod (16), a bottom rod (23) is fixedly installed on the upper bracket (21), and a magnetic structure with adjustable magnetic pole direction is arranged on the bottom rod (23); A rotating seat (24) is rotatably mounted on the bottom rod (23), and the rotating seat (24) is connected to the motor shaft of the regulating motor (25). A second magnetic block (26) is arranged on the rotating seat (24).

2. A mass spectrometer with a cleaning structure according to claim 1, characterized in that: The recovery cabin (2) is installed at the bottom of the mass spectrometer body (1), and a track (4) is provided in the recovery cabin (2). A movable support foot (5) is installed on the bottom surface of the recovery box (3), and the recovery box (3) is installed by connecting the movable support foot (5) with the track (4).

3. The mass spectrometer with a cleaning structure according to claim 1, characterized in that: A hydraulic rod (6) is arranged on the top of the recovery cabin (2), and the movable cover (7) is hoisted by the hydraulic rod (6); the sealing ring (8) is an elastic rubber ring, and the sealing ring (8) is arranged on the outer wall around the movable cover (7); at least three transfer boxes (9) are arranged in a straight line on the movable cover (7), respectively corresponding to different cavities separated by the partition plate (20); and the downflow pipe (11) is located above the cavity.

4. The mass spectrometer with a cleaning structure according to claim 1, characterized in that: A guide groove (28) is fixedly mounted on the lower bracket (27), and a slide seat (29) is slidably mounted in the guide groove (28). A limit spring (30) is fixedly connected to the slide seat (29), and a water seal box (32) is fixedly mounted on the slide seat (29) via an end rod (31).

5. A mass spectrometer with a cleaning structure according to claim 4, characterized in that: The lower bracket (27) is arranged horizontally, and the guide groove (28) is installed on the top surface of the lower bracket (27). The limit spring (30) and the end rod (31) are respectively connected to the two sides of the slide seat (29), and the water seal box (32) is filled with water seal liquid.

6. The mass spectrometer with a cleaning structure according to claim 4, characterized in that: An oblique pressure block (33) is fixedly mounted on the top surface of the slide seat (29), a side rod (18) is fixedly connected to the transfer box (9), and a pressure block (19) is arranged at the end of the side rod (18).

7. A mass spectrometer with a cleaning structure according to claim 6, characterized in that: The top surface of the oblique pressure block (33) is an inclined surface, and the side rod (18) and the rotating shaft (12) are respectively located on both sides of the transfer box (9), and the pressure block (19) is located above the oblique pressure block (33).

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