A mass spectrometry detection device and a gas sampling device thereof

Abstract

The present invention discloses a mass spectrometer detection device and a gas sampling device thereof, which relate to the technical field of detection and sampling equipment, including a mass spectrometer, a filter, and a gas storage tank. The interior of the placement box is fixedly connected to a suction cylinder, and the interior of the suction cylinder is slidably connected to a pull-out rod. The exterior of the pull-out rod is integrally formed with a threaded groove, and one end of the pull-out rod is rotatably connected to a piston. The exterior of the placement box is connected with a quantitative structure, and the threaded plate and the pull-out rod are fitted together by pushing the moving rod. The fitting between the threaded plate and the pull-out rod forms a threaded connection between the pull-out rod and the threaded plate. When the threaded connection is formed, the staff can continuously rotate the pull-out rod and gradually adjust the position of the pull-out rod through the threaded connection between the pull-out rod and the threaded plate, so that quantitative and small-dose supplementary sampling can be performed according to the thread when sampling.

Description

Technical Field

[0001] The present invention relates to the technical field of mass spectrometry detection devices and gas sampling devices thereof, and in particular to a mass spectrometry detection device and a gas sampling device thereof. Background Art

[0002] Since its invention in the early 20th century, the mass spectrometer, a high-precision analytical instrument, has played a vital role in diverse fields, including chemistry, physics, biomedicine, environmental science, and materials science. Its basic principle is to ionize a sample, separate, and detect the ions based on their mass-to-charge ratio (m / z), thereby obtaining a mass spectrum and enabling qualitative and quantitative analysis of the sample's chemical composition and structure.

[0003] In mass spectrometer applications, the gas sampling device is a crucial component. Its primary function is to accurately and stably collect gas samples from the environment under test and introduce them into the mass spectrometer for analysis. Due to the varying characteristics of the gas sample and the analytical requirements, the design of the gas sampling device is diverse.

[0004] In the patent titled: A gas sampling device for a mass spectrometer, the patent publication number is CN118225520B. It is proposed that in the prior art, the push rod is pulled upward by the pneumatic component. Since it is difficult for the pneumatic component to accurately sample the extracted gas quantitatively when sampling the gas, the amount of the sample cannot be more intuitively observed in the barrel, resulting in over-sampling or under-sampling, which is likely to affect the subsequent detection effect. When the gas is quantitatively extracted through the sampling tube, the adjustment column is dialed, and then the ring is rotated. The rotation of the ring facilitates the movement of the card block to the inner card of the card slot. The device is fixed, and then the turntable on the threaded rod is rotated. The rotation of the turntable moves the control ring, and the movement of the control ring drives the turntable to move through the docking plate, so that the sleeve pulls the pull rod. This operation method directly replaces the manual direct extraction method and can extract gas quantitatively. However, the external threaded rod is still used for adjustment during quantitative extraction. When the external threaded rod is used for adjustment, the sleeve and other components need to be adjusted. Moreover, when the threaded rod is used for precise adjustment, if the threaded rod is rotated too much, it will still cause excessive extraction. For this reason, a mass spectrometer and a gas sampling device thereof are proposed. Summary of the Invention

[0005] The object of the present invention is to provide a mass spectrometry detection device and a gas sampling device thereof to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a mass spectrometry detection device, comprising a mass spectrometer, a filter, and a gas storage tank, wherein the outside of the gas storage tank is connected to a sampling device, one of the gas outlets of the sampling device is connected to the filter, and the other gas outlet of the sampling device is connected to the mass spectrometer, wherein the mass spectrometer is a gas phase mass spectrometer.

[0007] Preferably, the sampling device includes a placement box, wherein the interior of the placement box is fixedly connected to a suction cylinder, the interior of the suction cylinder is slidably connected to a pull rod, the exterior of the pull rod is integrally formed with a threaded groove, one end of the pull rod is rotatably connected to a piston, and the exterior of the placement box is connected to a quantitative structure;

[0008] The quantitative structure includes two limit boxes fixedly connected to the outside of the placement box, and the internal sliding connection of the limit box is connected to a moving rod, and the end of the moving rod close to the pulling rod is connected to a threaded plate. The threaded plate is integrally formed with an external convex thread on the side close to the pulling rod, and the external convex thread is engaged with the thread groove on the outside of the pulling rod. The external convex thread and the thread groove are used to provide a threaded rotation suction method between the moving groove and the suction cylinder.

[0009] Preferably, at least two movable grooves are provided inside the pulling rod, and a magnetic movable block is slidably connected inside the movable groove. The magnetic movable block and the movable groove are used to push the threaded plate outward by utilizing the magnetism of the magnetic movable block itself during the movement of the pulling rod, so that the external convex thread of the threaded plate no longer engages with the threaded groove of the pulling rod.

[0010] Preferably, a plurality of positive ratchet plates are integrally formed on both sides of the inner side wall of the movable groove, and a plurality of negative ratchet plates are integrally formed on both sides of the outer side wall of the magnetic movable block, and the positive ratchet plates and the negative ratchet plates are clamped with each other.

[0011] Preferably, hollow rubber seats are integrally formed on both sides of the inner side wall of the movable groove, and the hollow rubber seat is connected to the plurality of positive spine plates. The positive spine plates are made of soft hollow material, and the air inlet of the hollow rubber seat is connected to an air supply pipe, and the end of the air supply pipe away from the hollow rubber seat is connected to an air supply balloon.

[0012] Preferably, a movable through-groove is provided inside the movable groove, a connecting plate is slidably connected inside the movable through-groove, threaded columns are fixedly connected to the upper and lower ends of the connecting plate, a threaded hole is provided outside the magnetic movable block, and the threaded column is threadedly connected to the threaded hole.

[0013] Preferably, a rubber plate is fixedly connected to the interior of the limit box, a plurality of arc-shaped grooves are formed on the inner side wall of the rubber plate, and two soft arc-shaped extrusion blocks are integrally formed on the exterior of the moving rod.

[0014] Preferably, the suction cylinder is connected to a connecting pipe, the top of the connecting pipe is connected to a solenoid valve, and the air outlet of the solenoid valve is connected to a delivery pipe.

[0015] Preferably, the air inlet end of the suction cylinder is connected to a metering valve, and the end of the metering valve away from the suction cylinder is connected to a connecting pipe.

[0016] Preferably, a plug hole is provided at the center of the pull rod, and a knob is inserted into the plug hole.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the present invention, when the staff needs to freely extract samples, they can directly pull the pull-out rod and cooperate with the piston to extract the gas. When quantitative extraction is required, or a small amount of gas is supplemented after extracting a large amount of gas, the moving rod can be pushed to drive the threaded plate and the pull-out rod to fit together. The fit between the threaded plate and the pull-out rod forms a threaded connection between the pull-out rod and the threaded plate. When the threaded connection is formed, the staff can continuously rotate the pull-out rod and gradually adjust the position of the pull-out rod through the threaded connection between the pull-out rod and the threaded plate, so that quantitative and small-dose supplementary sampling can be performed according to the thread when sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the schematic diagrams of the three-dimensional structure of the sampling device in an embodiment of the present invention;

[0020] Figure 2 This is a second schematic diagram of the three-dimensional structure of the sampling device in an embodiment of the present invention;

[0021] Figure 3 This is the third schematic diagram of the three-dimensional structure of the sampling device in an embodiment of the present invention;

[0022] Figure 4 This is a schematic structural diagram of a front view of a drawer rod according to an embodiment of the present invention;

[0023] Figure 5 Schematic diagram of the cross-sectional structure of the limit box in an embodiment of the present invention;

[0024] Figure 6 Schematic diagram of the structure of a square magnetic moving block in an embodiment of the present invention;

[0025] Figure 7 For the embodiment of the present invention Figure 4 Schematic diagram of the enlarged structure of area A;

[0026] Figure 8 Schematic diagram of the structure of the threaded hole in an embodiment of the present invention;

[0027] Figure 9Schematic diagram of the structure of the mass spectrometer, sampling device, gas storage tank and filter in an embodiment of the present invention.

[0028] In the figure: 100, placement box; 101, suction cylinder; 102, pulling rod; 103, knob; 104, limit box; 105, moving rod; 106, threaded plate; 200, moving groove; 201, magnetic moving block; 300, forward spine plate; 301, reverse spine plate; 400, hollow rubber seat; 401, air supply pipe; 402, air supply balloon; 500, connecting plate; 501, threaded column; 502, threaded hole; 503, moving through groove; 600, arc groove; 601, soft arc-shaped extrusion block; 602, rubber plate; 700, connecting pipe; 701, solenoid valve; 702, delivery pipe; 800, metering valve; 801, connecting pipe. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, 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 efforts are within the scope of protection of the present invention.

[0030] Example 1: Figures 1-9 As shown, the present application provides a mass spectrometry detection device, including a mass spectrometer, a filter, and a gas storage tank. The outside of the gas storage tank is connected to a sampling device, one of the gas outlets of the sampling device is connected to the filter, and the other gas outlet of the sampling device is connected to the mass spectrometer, which is a gas phase mass spectrometer.

[0031] Specifically, in the gas detection process of the present application, the gas inside the gas storage tank is extracted into the sampling device through the sampling device. In the sampling device, the gas is concentrated and transported to the filter for filtration, or when no filtration is required, the gas inside the sampling device is transported into the mass spectrometer for monitoring.

[0032] like Figures 1-8 As shown, in the sampling device, the sampling device includes a placement box 100, the interior of the placement box 100 is fixedly connected to a suction cylinder 101, the interior of the suction cylinder 101 is slidably connected to a pull rod 102, the exterior of the pull rod 102 is integrally formed with a threaded groove, one end of the pull rod 102 is rotatably connected to a piston, and the exterior of the placement box 100 is connected to a quantitative structure;

[0033] The quantitative structure includes two limit boxes 104 fixedly connected to the outside of the placement box 100, and the internal sliding connection of the limit box 104 is a moving rod 105, and the end of the moving rod 105 close to the pulling rod 102 is connected to a threaded plate 106. The threaded plate 106 is integrally formed with an external convex thread on the side close to the pulling rod 102, and the external convex thread is engaged with the thread groove on the outside of the pulling rod 102. The external convex thread and the thread groove are used to provide a threaded rotation suction method between the moving groove 200 and the suction cylinder 101. A plug hole is opened in the center of the pulling rod 102, and a knob 103 is plugged into the inside of the plug hole.

[0034] Specifically, during the sampling process, the staff can pull the pull rod 102 outward through the knob 103. When the pull rod 102 is pulled, a negative pressure can be formed inside the suction cylinder 101. When the negative pressure is formed, the gas inside the gas tank will be extracted, and the gas inside the gas tank will be retained inside the suction cylinder 101.

[0035] Furthermore, during use, when the staff pulls the drawing rod 102 outward so that the drawing rod 102 continues to draw air, the gas will continue to enter the interior of the suction cylinder 101 as the drawing rod 102 moves. In the case of needing to perform quantitative suction, continuously pulling the drawing rod 102 outward may cause the drawing rod 102 to be pulled too far, and the amount of gas entering the interior of the suction cylinder 101 will be too much. Therefore, during the suction process, the staff can hold the two moving rods 105, and use the two moving rods 105 to push the threaded plates 106 to move, push the two threaded plates 106 to fit the outside of the drawing rod 102, and then fit the threaded plates 106 to the outside of the drawing rod 102. In this case, adjust the threaded connection between the pull-out rod 102 and the threaded plate 106 so that the outer convex thread of the threaded plate 106 matches the thread groove of the pull-out rod 102. When a matching engagement is formed, the staff can rotate the pull-out rod 102 so that the pull-out rod 102 cooperates with the outer convex thread of the threaded plate 106 to form a quantitative forward and backward movement, so that the staff can perform quantitative suction through the thread, and the overall operation does not require complicated adjustments. The staff can first suck a large amount of gas to a predetermined amount. When there is still a small amount of gas that has not been sucked out, the outer convex thread of the pull-out rod 102 can form a quantitative suction effect, which is convenient for the staff to adjust according to the usage and the adjustment process is more convenient.

[0036] like Figure 1-Figure 3 As shown, the air inlet end of the suction cylinder 101 is connected to a metering valve 800 , and the end of the metering valve 800 away from the suction cylinder 101 is connected to a connecting pipe 801 .

[0037] Specifically, during use, in order to avoid errors in gas sampling, during the suction process, the connecting pipe 801 can be connected through the metering valve 800, and the gas storage tank can be connected through the connecting pipe 801. When the connecting pipe 801 is connected to the gas storage tank, when the staff performs suction, the gas will pass through the connecting pipe 801 and the metering valve 800, and then enter the interior of the suction cylinder 101. When the gas passes through the metering valve 800, the metering verification will be carried out, and the external thread of the pull-out rod 102 can form a secondary verification. When the metering valve 800 is not used, quantitative suction can also be completed by the pull-out rod 102 alone.

[0038] Furthermore, the outward movement of the pulling rod 102 can also be achieved by connecting a motor. The motor is connected to the pulling rod 102 through the existing rotating structure, so that the pulling rod 102 forms a continuous rotation. When the pulling rod 102 forms a continuous rotation, electric quantitative suction is formed. The motor and other components form an electric controller, and the electric controller is controlled by the main control system.

[0039] like Figure 1-Figure 2 As shown, the suction cylinder 101 is connected to a connecting pipe 700 , the top of the connecting pipe 700 is connected to a solenoid valve 701 , and the air outlet of the solenoid valve 701 is connected to a delivery pipe 702 .

[0040] Specifically, after the gas is drawn into the suction cylinder 101, the solenoid valve 701 is opened. When the solenoid valve 701 is open, the gas enters the connecting tube 700 and is transported through the solenoid valve 701 to the delivery tube 702. From there, the gas is transported to the molecular pump. The gas entering the molecular pump is collected by a multifunctional data acquisition device, model DAM-3160 and DAM-397C. The DAM-397C collects analog signals from the ionization process and transmits the collected data. During transmission, the ionization signal passes through a signal adapter box, which converts the analog signal generated by the ion detector into a digital signal that can be processed by the computer system and then adjusts the signal to an appropriate level range. The signal adapter box has multiple interfaces that accurately transmit the signal to the corresponding processing module. The main control system collects the collected mass spectrometer signals at high speed and stores them as standard format files. The main control system also communicates with external devices through its own communication functions, transmitting data to a computer for analysis and processing via supporting software, ultimately presenting the mass spectrometry results. The DAM-3160 outputs appropriate voltage or current signals to control the operation of the sample injection device. The sample then enters the vacuum chamber. The molecular pump, through its high-speed rotating blades, "drags" the gas molecules in the vacuum chamber in a targeted manner to the pump outlet, where they are expelled by the forepump. A vacuum gauge monitors the vacuum level in the vacuum chamber in real time. Ionization of the sample by the EI source in the vacuum chamber generates an ion signal.

[0041] like Figure 5 As shown, a rubber plate 602 is fixedly connected to the interior of the limit box 104 , and a plurality of arc grooves 600 are formed on the inner side wall of the rubber plate 602 . Two soft arc-shaped extrusion blocks 601 are integrally formed on the exterior of the moving rod 105 .

[0042] Specifically, during use, when the staff adjusts the position of the threaded plate 106 by moving the rod 105, when the staff pushes the two threaded plates 106 close to the pull rod 102 by pressing the moving rod 105, the moving moving rod 105 will drive the two soft arc-shaped extrusion blocks 601 on the outside to be clamped into the two arc grooves 600 close to the pull rod 102, so that the soft arc-shaped extrusion blocks 601 are clamped into the inside of the arc groove 600 to form a clamping connection between the moving rod 105 and the threaded plate 106, so that the threaded plate 106 fits the outer wall of the pull rod 102 to form a threaded connection, close to the position of the pull rod 102 The two arc grooves 600 are the front arc grooves 600, and the arc groove 600 away from the pulling rod 102 is the rear arc groove 600, and in the process of separating the threaded plate 106 and the pulling rod 102, by pulling the moving rod 105 outward, the soft arc extrusion block 601 engaged in the front arc groove 600 squeezes the rubber plate 602 and shifts into the rear arc groove 600, so that the moving rod 105 drives the threaded plate 106 to separate from the pulling rod 102, and the rear arc groove 600 will cooperate with the soft arc extrusion block 601 to limit the moving rod 105 and the threaded plate 106 again.

[0043] The technical solutions in the above-mentioned embodiments of the present application have at least the following technical effects or advantages: relative to the prior art, in this embodiment, when the staff needs to freely extract samples, they can directly pull the pull-out rod 102 to cooperate with the piston to extract the gas, and when quantitative extraction is required, or a small dose of gas is supplemented after a large amount of gas is extracted, the moving rod 105 can be pushed to drive the threaded plate 106 and the pull-out rod 102 to fit together, and the threaded plate 106 and the pull-out rod 102 are fit together to form a threaded connection between the pull-out rod 102 and the threaded plate 106. When the threaded connection is formed, the staff can continuously rotate the pull-out rod 102, and gradually adjust the position of the pull-out rod 102 through the threaded connection between the pull-out rod 102 and the threaded plate 106, so that quantitative and small doses of supplementary sampling can be performed according to the thread when sampling.

[0044] Embodiment 2: Considering that during use, when a staff member takes a small dose of sample or rotates the pull rod 102 for sampling, if the staff member rotates the pull rod 102 too many times, it will still cause excessive sampling. In the case of excessive sampling, the staff member needs to reversely rotate the pull rod 102 to push the gas back into the gas storage tank. The second reverse push will still result in too much or too little gas. In response to the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically:

[0045] like Figure 2-Figure 8As shown, at least two movable grooves 200 are opened inside the pulling rod 102, and the internal sliding connection of the movable groove 200 is a magnetic movable block 201. The magnetic movable block 201 and the movable groove 200 are used to use the magnetism of the magnetic movable block 201 itself to push the threaded plate 106 outward during the movement of the pulling rod 102, so that the external convex thread of the threaded plate 106 is no longer engaged with the threaded groove of the pulling rod 102.

[0046] Specifically, during use, the staff can adjust the magnetic moving block 201 to any position inside the moving groove 200. A moving scale is connected to the inner wall of the moving groove 200. The user can move the moving groove 200 to a position with a specified air intake according to the moving scale. After the moving groove 200 is moved, the staff pushes the pulling rod 102 into the interior of the suction cylinder 101 and threadedly connects the threaded plate 106 to the pulling rod 102. After the threaded connection is completed, the staff continues to rotate the pulling rod 102 out of the interior of the suction cylinder 101. During the rotation process, when the moving groove 200 moves to the threaded plate 106, the staff will rotate the pulling rod 102 out of the interior of the suction cylinder 101. When the lever 102 is in the locked position, the repulsive force generated between the movable groove 200 and the threaded plate 106 will push the threaded plate 106 and the movable rod 105 to separate from the pulling rod 102, so that there is no longer a threaded connection between the pulling rod 102 and the threaded plate 106. As a result, when the staff continues to rotate the pulling rod 102, the pulling rod 102 can only rotate idly, and the front and rear position adjustment effect cannot be achieved. When the front and rear adjustment effect cannot be achieved, the piston cannot be driven to move, and the air pumping stroke cannot be performed. As a whole, when the pulling rod 102 rotates and pumps to a specified degree, it cannot continue to pump, and the effect of quantitative suction is achieved as a whole.

[0047] Furthermore, when adjusting the position of the magnetic movable block 201, due to the spacing problem between the threads, when adjusting the position of the movable groove 200, the position of the magnetic movable block 201 should be adjusted accordingly according to the scale of the inner wall of the movable groove 200, that is, according to the spacing and scale of the threads of the pull rod 102, a redundancy is required when making adjustments to ensure accurate quantitative suction effects.

[0048] like Figure 8 As shown, a movable through-groove 503 is provided inside the movable groove 200, and a connecting plate 500 is slidably connected inside the movable through-groove 503. The upper and lower ends of the connecting plate 500 are fixedly connected with threaded columns 501. A threaded hole 502 is provided outside the magnetic movable block 201, and the threaded column 501 is threadedly connected to the threaded hole 502.

[0049] Specifically, during use, the connecting plate 500 can also be inserted into the interior of the movable through-slot 503 through the middle plug hole of the pull rod 102. After the connecting plate 500 is inserted into the interior of the movable through-slot 503, the threaded column 501 can be used to connect with the two magnetic movable blocks 201, thereby limiting the two magnetic movable blocks 201 and preventing the threaded hole 502 from being detached from the movable slot 200.

[0050] like Figure 6 As shown, the movable slot 200 is an open square slot, and the magnetic movable block 201 is also square. When a single magnetic movable block 201 is used, the magnetic poles of the square magnetic movable block 201 are reversed and placed inside the movable slot 200. When the user continuously pulls the pull-out rod 102 outward to the specified position, the reversely placed square magnetic movable block 201 will adsorb the threaded plate 106, so that the threaded plate 106 is adsorbed to the surface of the pull-out rod 102, so that the staff can no longer continue to pull, but can only adjust it in a spiral manner.

[0051] Furthermore, the staff can also extract all the gas in advance, then adjust the magnetic moving block 201 to the outside, and then rotate the pulling rod 102 a little bit to push it into the inside of the suction cylinder 101. When the magnetic moving block 201 is pushed to the position of the threaded plate 106, the threaded plate 106 can be pushed away to achieve visual pushing of the magnetic moving block 201 on the outside, which is more precise overall.

[0052] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to embodiment one, in this embodiment, by pre-setting the position of the magnetic moving block 201, when the pull-out rod 102 is rotated and moved to the specified position, the threaded plate 106 and the pull-out rod 102 are separated by the repulsive force generated between the magnetic moving block 201 and the threaded plate 106. When the threaded plate 106 and the pull-out rod 102 are separated, the staff will not drive the piston to move and pump air even if they are still rotating the pull-out rod 102, thereby achieving more accurate quantitative extraction as a whole.

[0053] Embodiment 3: Considering that the magnetic moving block 201 moves inside the moving slot 200 and is easily separated from the moving slot 200 as the pulling rod 102 continues to rotate, the present application proposes the following technical solutions to solve the above technical problems, specifically:

[0054] like Figure 4-Figure 7 As shown, multiple positive ratchet plates 300 are integrally formed on both sides of the inner wall of the movable slot 200, and multiple negative ratchet plates 301 are integrally formed on both sides of the outer wall of the magnetic movable block 201. The positive ratchet plates 300 and the negative ratchet plates 301 are mutually engaged.

[0055] Specifically, during use, when the magnetic moving block 201 is placed inside the moving slot 200, the magnetic moving block 201 can be pressed downward to completely embed the magnetic moving block 201 into the moving slot 200. When the magnetic moving block 201 is completely embedded in the moving slot 200, the multiple reverse spine plates 301 located outside the magnetic moving block 201 will be engaged with the forward spine plates 300 on the inner wall of the moving slot 200. When the mutual engagement is formed, the magnetic moving block 201 can be prevented from being separated from the moving slot 200.

[0056] like Figure 8 As shown, a movable through-groove 503 is provided inside the movable groove 200, and a connecting plate 500 is slidably connected inside the movable through-groove 503. The upper and lower ends of the connecting plate 500 are fixedly connected with threaded columns 501. A threaded hole 502 is provided outside the magnetic movable block 201, and the threaded column 501 is threadedly connected to the threaded hole 502.

[0057] Specifically, during use, the connecting plate 500 can also be inserted into the interior of the movable through-slot 503 through the middle plug hole of the pull rod 102. After the connecting plate 500 is inserted into the interior of the movable through-slot 503, the threaded column 501 can be used to connect with the two magnetic movable blocks 201, thereby limiting the two magnetic movable blocks 201 and preventing the threaded hole 502 from being detached from the movable slot 200.

[0058] Furthermore, by using the forward ratchet plate 300 and the reverse ratchet plate 301 , it is possible to prevent the single magnetic moving block 201 from being tilted or placed in other directions inside the moving slot 200 .

[0059] Furthermore, the setting of the connecting plate 500 and the threaded column 501 can further increase the stability of the magnetic moving block 201 inside the moving groove 200. At the same time, when the staff adjusts the position of one of the magnetic moving blocks 201 inside the moving groove 200, the other magnetic moving block 201 can be driven to move together. The two magnetic moving blocks 201 need to be moved and adjusted separately.

[0060] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to embodiment three, in this embodiment, the reverse ratchet plate 301 on the outside of the magnetic moving block 201 and the positive ratchet plate 300 on the inner wall of the moving groove 200 can form a mutual locking phenomenon, and the mutual locking between the positive ratchet plate 300 and the reverse ratchet plate 301 can realize the limitation of the magnetic moving block 201. At the same time, in the process of moving the magnetic moving block 201, it can effectively prevent the magnetic moving block 201 from detaching from the moving groove 200 and guide the moving direction of the magnetic moving block 201, thereby avoiding the phenomenon that the magnetic moving block 201 is tilted or the side is attached to the inner wall of the moving groove 200.

[0061] Embodiment 4: Considering that during use, the material of the threaded plate 106 is a magnetic material, and the magnetic moving block 201 is also a magnetic material, and when the magnetic moving block 201 is not completely close to the threaded plate 106, the magnetic material of the threaded plate 106 may attract the magnetic moving block 201, or the magnetic moving block 201 may be displaced inside the moving groove 200 when there are other magnetic guides outside. When displacement occurs inside the moving groove 200, it may cause the threaded plate 106 to be pushed away from the pulling rod 102 in advance or in a delayed manner, thereby causing inaccurate extraction measurement. In response to the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically:

[0062] like Figure 2-Figure 7 As shown, hollow rubber seats 400 are integrally formed on both sides of the inner wall of the movable groove 200. The hollow rubber seat 400 is connected to multiple positive spine plates 300. The positive spine plates 300 are made of soft hollow material. The air inlet of the hollow rubber seat 400 is connected to an air supply pipe 401, and the end of the air supply pipe 401 away from the hollow rubber seat 400 is connected to an air supply balloon 402.

[0063] Specifically, if a single magnetic moving block 201 is used, the staff can continuously press the air delivery balloon 402. When the air delivery balloon 402 is continuously pressed, gas will continue to enter the interior of the air delivery tube 401 and the air delivery tube 401 will transport the gas into the interior of the hollow rubber seat 400 and the positive spine plate 300. When the gas enters the interior of the hollow rubber seat 400 and the positive spine plate 300, the hollow rubber seat 400 and the positive spine plate 300 will be caused to expand. When the hollow rubber seat 400 and the positive spine plate 300 expand, the magnetic moving block 201 and the reverse spine plate 301 will be squeezed. By squeezing the magnetic moving block 201 and the reverse spine plate 301, the magnetic moving block 201 can be further limited, ensuring the stability of the magnetic moving block 201 in the current position.

[0064] The technical solutions in the above-mentioned embodiments of the present application have at least the following technical effects or advantages: relative to embodiment three, in this embodiment, external gas can be delivered to the hollow rubber seat 400 and the positive spine plate 300 by continuously pressing the delivery balloon 402. When the gas is delivered to the hollow rubber seat 400 and the positive spine plate 300, the hollow rubber seat 400 and the positive spine plate 300 will expand. When the hollow rubber seat 400 and the positive spine plate 300 expand, the magnetic moving block 201 can be further limited and fixed to avoid the magnetic moving block 201 being displaced by external force.

[0065] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A mass spectrometry detection device, comprising a mass spectrometer, a filter, and a gas storage tank, characterized in that: The outside of the gas storage tank is connected to a sampling device, one of the gas outlets of the sampling device is connected to a filter, and the other gas outlet of the sampling device is connected to a mass spectrometer, which is a gas phase mass spectrometer; The sampling device comprises a placement box (100), wherein the interior of the placement box (100) is fixedly connected to a suction cylinder (101), the interior of the suction cylinder (101) is slidably connected to a pull rod (102), the exterior of the pull rod (102) is integrally formed with a threaded groove, one end of the pull rod (102) is rotatably connected to a piston, and the exterior of the placement box (100) is connected to a quantitative structure; The quantitative structure includes two limit boxes (104) fixedly connected to the outside of the placement box (100), the interior of the limit box (104) is slidably connected to a moving rod (105), the end of the moving rod (105) close to the pull rod (102) is connected to a threaded plate (106), and the side of the threaded plate (106) close to the pull rod (102) is integrally formed with an external convex thread, and the external convex thread is engaged with the thread groove on the outside of the pull rod (102); At least two movable grooves (200) are provided inside the pulling rod (102), and a magnetic movable block (201) is slidably connected inside the movable groove (200); The inner wall surface of the movable groove (200) is connected to a movable scale; The magnetic moving block (201) and the moving groove (200) are used to push the threaded plate (106) outwards by utilizing the magnetism of the magnetic moving block (201) itself during the movement of the pulling rod (102), so that the external convex thread of the threaded plate (106) and the threaded groove of the pulling rod (102) no longer engage; A plurality of positive spindle plates (300) are integrally formed on both sides of the inner side wall of the movable groove (200), and a plurality of negative spindle plates (301) are integrally formed on both sides of the outer side wall of the magnetic movable block (201), and the positive spindle plates (300) and the negative spindle plates (301) are mutually engaged.

2. A gas sampling device for a mass spectrometer detection device, using the mass spectrometer detection device according to claim 1, characterized in that: The external convex thread and the thread groove are used to provide a thread rotation suction method between the movable groove (200) and the suction cylinder (101).

3. The gas sampling device of a mass spectrometry detection device according to claim 2, characterized in that: Hollow rubber seats (400) are integrally formed on both sides of the inner side wall of the movable groove (200), and the hollow rubber seat (400) is connected to the plurality of positive spine plates (300). The positive spine plates (300) are made of a soft hollow material. The air inlet of the hollow rubber seat (400) is connected to an air supply pipe (401), and the end of the air supply pipe (401) away from the hollow rubber seat (400) is connected to a balloon (402).

4. The gas sampling device of a mass spectrometry detection device according to claim 3, characterized in that: A movable through-groove (503) is provided inside the movable groove (200), a connecting plate (500) is slidably connected inside the movable through-groove (503), threaded columns (501) are fixedly connected at both upper and lower ends of the connecting plate (500), a threaded hole (502) is provided outside the magnetic movable block (201), and the threaded column (501) is threadedly connected to the threaded hole (502).

5. The gas sampling device of a mass spectrometer detection device according to claim 2, characterized in that: A rubber plate (602) is fixedly connected to the interior of the limit box (104), and a plurality of arc-shaped grooves (600) are formed on the inner side wall of the rubber plate (602). Two soft arc-shaped extrusion blocks (601) are integrally formed on the exterior of the moving rod (105).

6. The gas sampling device of a mass spectrometry detection device according to claim 2, characterized in that: The suction cylinder (101) is connected to a connecting pipe (700), the top of the connecting pipe (700) is connected to a solenoid valve (701), and the air outlet of the solenoid valve (701) is connected to a delivery pipe (702).

7. The gas sampling device of a mass spectrometry detection device according to claim 2, characterized in that: The air inlet end of the suction cylinder (101) is connected to a metering valve (800), and one end of the metering valve (800) away from the suction cylinder (101) is connected to a connecting pipe (801).

8. The gas sampling device of a mass spectrometry detection device according to claim 2, characterized in that: A plug hole is provided at the center of the pull rod (102), and a knob (103) is plugged into the plug hole.

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