Parallel sample high efficiency treatment positive pressure extraction device

Abstract

The present application relates to the technical field of extraction equipment, more specifically, it relates to a parallel sample high-efficiency processing positive pressure extraction device; when the pressure of the trachea is adjusted and the ventilation time is adjusted, the motor can be started to drive the roller shaft to rotate on the connecting piece, so as to drive the equipment to slide along the trachea, the position of the equipment is adjusted to adjust the gas interception position of the trachea, so as to adjust the gas passing and interception time, in the process, the motor one on the base one can be started to rotate, the motor one drives the lead screw to rotate, through the threaded connection relationship between the lead screw and the clamp sleeve, the clamp sleeve drives the trachea to be pushed, so as to adjust the amount of passing gas, in the process, to avoid the rotation of the clamp sleeve through the installation of the limiting column, the clamp sleeve slides along the limiting column, so as to improve the adjusting performance of the equipment, thereby improving the working efficiency of the equipment.

Description

Technical Field

[0001] This invention relates to the field of extraction equipment technology, and more specifically, to a positive pressure extraction device for efficient parallel sample processing. Background Technology

[0002] Positive pressure extraction (PoPE) is a sample pretreatment technique that forces liquid samples through an extraction column at a controlled flow rate by applying gas pressure from above. It is commonly used in solid-phase extraction processes as an alternative to negative pressure extraction. A sealed pressure device is connected to the top of the extraction column or a 96-well plate, using an inert gas to provide stable and precise positive pressure, smoothly pushing all liquids uniformly through the adsorbent. Vacuum pressure can be uneven between channels, especially when processing viscous samples. A positive pressure system allows independent control of each channel, ensuring consistent flow rates. Parallel synchronous extraction refers to processing multiple samples simultaneously under the same experimental conditions, with all samples undergoing strictly consistent procedures, times, and environments from start to finish. If samples are processed sequentially, the first and last samples may be exposed to room temperature for different times, potentially causing instrument drift. Parallel synchronous operation ensures that all samples receive identical treatment. The most common PoPE equipment currently available is the extraction column. However, existing extraction columns have certain problems and defects that can affect the use of the equipment.

[0003] First, during extraction in the extraction column, the connection between the equipment and the gas is a fixed connection at the top, which causes different pressure outputs when the equipment is filled and propelled by the gas. This results in deviations in the sample results of parallel samples, thus leading to poor functionality of the equipment.

[0004] Secondly, during extraction, the size of the extraction column is usually fixed, which results in poor adjustment performance of the equipment when facing extraction needs with different levels and different numerical changes, thus leading to low working efficiency of the equipment.

[0005] In addition, during the extraction process, the handling of most parallel samples relies on manual operation, which makes the extraction steps cumbersome and reduces the convenience of the equipment. Summary of the Invention

[0006] To address the problems existing in the prior art, the present invention provides a parallel sample high-efficiency positive pressure extraction device to solve the technical problem of poor functionality mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a parallel sample high-efficiency positive pressure extraction device, comprising: The housing contains a working chamber. A pressure equalization assembly is evenly installed in the working chamber. A connecting sleeve is provided in the working chamber, and an air tank is provided in the connecting sleeve. An air pump is connected to the output end of the air tank. A rotary joint is provided at the output end of the air pump. An air box is rotatably connected to the rotary joint. An air chamber is provided in the air box. An arc-shaped top is provided at the top of the air chamber. A honeycomb air mesh is installed inside the air chamber. A diaphragm valve is connected to the air chamber, and an air pipe is connected to the diaphragm valve. An adjustment assembly is evenly installed on the trachea. The adjustment assembly includes a sealing plug, an adjustment column is fitted at the bottom end of the sealing plug, an extraction column is slidably connected to the adjustment column, a hinge seat is provided on the adjustment column, a rotating shaft is hinged on the hinge seat, a hinge rod is fitted on the rotating shaft, and a crank rod is hinged on the hinge rod. The crank rod and the extraction column are rotatably connected. A picking device is evenly installed inside the working chamber.

[0008] According to one or more embodiments of the present invention: a roller is rotatably connected to the air pipe, a connecting plate is rotatably connected to the roller, a motor is fitted on the connecting plate, a machine base is connected to the connecting plate, a motor is mounted on the machine base, a lead screw is provided at the output end of the motor, a sleeve is threaded onto the lead screw, a limit post is slidably connected to the sleeve, and the limit post is connected to the machine base; when adjusting the pressure and ventilation time of the air pipe, the motor can be started to drive the roller to rotate on the connecting plate, thereby driving the equipment along... The trachea slides, and the position of the gas interception point in the trachea is adjusted by adjusting the position of the device, thereby regulating the gas passage and interception time. During this process, the motor on the base can be started to rotate, which drives the lead screw to rotate. Through the threaded connection between the lead screw and the jacket, the jacket pushes the trachea, thereby adjusting the amount of gas passing through. To prevent the jacket from rotating during this process, a limiting post is installed, allowing the jacket to slide along the limiting post, thereby improving the adjustment performance of the device and thus improving the working efficiency of the device.

[0009] According to one or more embodiments of the present invention: a support is provided at the bottom of the gas box, and a turntable is provided at the bottom of the support. The turntable and the connecting sleeve are rotatably connected. When the equipment is in use, the support supports the gas box, and the turntable at the bottom can drive the turntable to rotate, thereby adjusting the position of the extraction column, improving the stability of the equipment, and thus improving the working efficiency of the equipment.

[0010] According to one or more embodiments of the present invention: the picking device includes a mounting base, the top end of the mounting base is connected to the bottom end of the turntable, a support rod is rotatably connected to the mounting base, a connecting block is rotatably connected to the support rod, a pull rod is hinged to the connecting block, a buckle is hinged to the pull rod, a double-headed frame is clamped to the buckle, a clamping mechanism is clamped to the double-headed frame, the clamping mechanism and the extraction column are fixedly fitted together, and an outlet is provided through the working chamber; when picking up the device, by pulling the extraction column, it causes the clamping mechanism connected to it to move accordingly. During this process, the extraction column causes the double-headed frame connected to it to move accordingly, and the buckle moves accordingly. During the displacement, as the position changes, the angle of the pull rod and the connecting block rotates and changes. During this process, the support rod rotates on the mounting base, thereby improving the convenience of picking up different extraction columns by pulling and resetting, thereby improving the working efficiency of the device.

[0011] According to one or more embodiments of the present invention: the clamping mechanism includes a positioning sleeve, a fixed assembly of the positioning sleeve and the extraction column, a split pin being clamped onto the positioning sleeve, the bottom end of the split pin being connected to the top end of the double-headed frame, a pin being slidably connected inside the split pin, and a spring being fitted onto the pin; when clamping the extraction column, clamping is achieved through the positioning sleeve and the extraction column. During this process, the pin is pulled to slide and rise within the split pin, causing the split pin to gradually retract as it loses its internal thrust, thus clamping the split pin and the positioning sleeve. After clamping, the pin is released to reset under the tension of the spring, thereby opening the split pin, improving the modularity of the equipment, enhancing the ease of maintenance, and thus improving the working efficiency of the equipment.

[0012] According to one or more embodiments of the present invention: a first gear is mounted on the turntable, a second gear is meshed with the first gear, and a second motor is fitted onto the connecting sleeve. The output end of the second motor is connected to the bottom end of the second gear. When driving the equipment, the second motor is started to rotate on the connecting sleeve. The rotation drives the second gear to rotate as well. Through the meshing relationship between the second gear and the first gear, the turntable is driven to rotate, thereby improving the automation level of the equipment and thus improving the working efficiency of the equipment.

[0013] According to one or more embodiments of the present invention: a gear three is provided on the rotating shaft, a machine base two is provided on the hinge seat one, a motor three is provided on the machine base two, and a gear four is provided at the output end of the motor three. The gear three and the gear four mesh with each other. When driving the equipment, the motor three on the machine base two is started to rotate, and the motor three drives the gear four to rotate. Through the meshing relationship between the gear three and the gear four, the rotating shaft is driven to rotate accordingly, thereby improving the automation level of equipment adjustment and thus improving the working efficiency of the equipment.

[0014] According to one or more embodiments of the present invention: the double-headed frame and the buckle are provided with a through hole, and a bolt is threaded into the through hole. The pull rod is equipped with a limit clip. When the double-headed frame and the buckle are fastened together, the bolt is rotated to lock it in the through hole. During this process, in order to prevent the buckle and the pull rod from rotating excessively and causing the extraction column to tilt, a limit clip is added to support the buckle, thereby improving the stability of the equipment and thus improving the working efficiency of the equipment.

[0015] According to one or more embodiments of the present invention: a slide rail is provided on the pull rod, a slider is slidably connected to the slide rail, a connecting seat is provided on both the slider and the support rod, a connecting rod is hinged to the connecting seat, and a second spring is rotatably connected to the connecting rod and the connecting seat; when the pull rod is pulled, the connecting rod hinged to the connecting seat changes angle with the support rod and the pull rod, thereby pulling the slider rotatably connected to it, causing it to slide and adjust its position along the slide rail, thus stabilizing the sliding of the equipment; after being released, the equipment loses the pulling force, and under the action of the second spring, it pulls the connecting rod, thereby driving the support rod and the pull rod to reset, thereby improving the stability of the equipment and thus improving the working efficiency of the equipment.

[0016] According to one or more embodiments of the present invention: a positioning plate is fitted on the connecting sleeve; after the support rod is reset, in order to avoid excessive rotation of the support rod causing the extraction column to tilt, a positioning plate is added to the connecting sleeve to support and limit the support rod, thereby improving the stability of the equipment and thus improving the working efficiency of the equipment.

[0017] Compared with the prior art, the present invention provides a positive pressure extraction device for high-efficiency parallel sample processing, which has the following beneficial effects: 1. When equalizing the pressure of the extraction column, the extraction column is placed in a ring. During this process, the air pump is started to extract the gas from the gas tank inside the connecting sleeve. After extraction, the gas directly enters the gas box, which is equipped with an arc-shaped top. The gas is dispersed by the arc-shaped top, and after dispersion, it is evenly dispersed with the honeycomb gas mesh. During this process, after the gas reaches a certain pressure, it passes through the membrane valve and is connected to the ring gas delivery system to equalize the pressure of parallel sample extraction. This avoids uneven pressure distribution when multiple extraction columns are used, thereby improving the extraction quality of the equipment and thus improving the working efficiency of the equipment.

[0018] 2. When adjusting the extraction column, the gas passes through the gas pipe to the sealing plug and is extracted inside the extraction column. During this process, the space inside the extraction column can be adjusted to simulate different situations. In this process, the sliding adjustment column is slidable inside the extraction column to adjust the space. During the adjustment, the rotating shaft on the hinge seat rotates accordingly, and the hinge rod connected to it drives the crank rod to rotate synchronously to adjust the angle, thereby improving the adjustment performance of the equipment and thus improving the working efficiency of the equipment.

[0019] 3. When picking up the equipment, pulling the extraction column causes the connected clamping mechanism to shift. During this process, the extraction column also causes the connected double-headed frame and latch to shift. As the position changes, the angle of the pull rod and connecting block rotates. The support rod rotates on the mounting base accordingly. This pulling and resetting mechanism improves the ease of picking up different extraction columns, thereby increasing the equipment's working efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a positive pressure extraction device for high-efficiency parallel sample processing according to the present invention; Figure 2 This is an exploded structural diagram of a positive pressure extraction device for high-efficiency parallel sample processing according to the present invention; Figure 3 This is a cross-sectional schematic diagram of a positive pressure extraction device for high-efficiency parallel sample processing according to the present invention; Figure 4 This is a schematic diagram of the connection structure between the arc-shaped top and the gas box of a parallel sample high-efficiency positive pressure extraction device according to the present invention; Figure 5 This is a schematic diagram of the connection structure of the roller and connecting plate of the positive pressure extraction device for high-efficiency parallel sample processing according to the present invention; Figure 6 This is a schematic diagram of the connection structure between the regulating column and the extraction column of a positive pressure extraction device for high-efficiency parallel sample processing according to the present invention. Figure 7This is an exploded structural diagram of the dual-head frame of the parallel sample high-efficiency positive pressure extraction device of the present invention; Figure 8 This is a schematic diagram of the connection structure of the pull rod and connecting block of the positive pressure extraction device for high-efficiency parallel sample processing according to the present invention; Figure 9 This is a schematic diagram of the connection structure of the housing and connecting sleeve of the positive pressure extraction device for high-efficiency parallel sample processing according to the present invention; Figure 10 This is a schematic diagram of the connection structure between the turntable and gear one of the parallel sample high-efficiency positive pressure extraction device of the present invention; Figure 11 This is a schematic diagram of the connection structure of the positioning disk and connecting sleeve of the positive pressure extraction device for high-efficiency parallel sample processing according to the present invention; Figure 12 This is a schematic diagram of the connection structure between the air pump and the air tank of a positive pressure extraction device for high-efficiency parallel sample processing according to the present invention. Figure 13 This is a schematic diagram of the connection structure between the gas box and the support of a positive pressure extraction device for high-efficiency parallel sample processing according to the present invention; Figure 14 This is a schematic diagram of the connection structure between the sealing plug and the gas tube of a positive pressure extraction device for efficient parallel sample processing according to the present invention.

[0021] In the diagram: 1. Housing; 2. Working chamber; 3. Connecting sleeve; 4. Gas tank; 100. Air pump; 5. Rotary joint; 6. Gas box; 7. Gas cavity; 8. Arc-shaped top; 9. Honeycomb gas mesh; 10. Membrane valve; 11. Gas pipe; 12. Sealing plug; 13. Adjusting column; 14. Extraction column; 15. Hinge seat one; 16. Rotating shaft; 17. Hinge rod; 18. Crank rod; 19. Roller shaft; 20. Connecting piece; 21. Motor; 22. Machine base one; 23. Motor one; 24. Lead screw; 25. Jacket; 26. Limiting post; 27. Support; 28. Rotary... 29. Plate; 30. Mounting base; 31. Support rod; 32. Connecting block; 33. Pull rod; 34. Buckle; 35. Double-headed frame; 36. Outlet; 37. Positioning sleeve; 38. Split pin; 39. Pin; 40. Spring 1; 41. Gear 1; 42. Gear 2; 43. Gear 3; 44. Base 2; 45. Motor 3; 46. Gear 4; 47. Insertion hole; 48. Bolt; 49. Limiting clip; 50. Slide rail; 51. Slider; 52. Connecting base; 53. Connecting rod; 54. Spring 2; 55. Positioning plate. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0025] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.

[0026] The core of this invention is to provide a parallel sample high-efficiency positive pressure extraction device, which can perform extraction under different conditions by adjusting the space through the sliding adjustment column 13 and the extraction column 14, and will not have the problem of poor pressure uniformity.

[0027] Please see Figure 1-14 In a first specific embodiment, the present invention provides a parallel sample high-efficiency processing positive pressure extraction device, including a housing 1, wherein a working chamber 2 is provided inside the housing 1. A pressure equalization assembly is evenly installed in the working chamber 2. A connecting sleeve 3 is provided in the working chamber 2. An air tank 4 is provided in the connecting sleeve 3. An air pump 100 is connected to the output end of the air tank 4. A rotary joint 5 is provided at the output end of the air pump 100. An air box 6 is rotatably connected to the rotary joint 5. An air chamber 7 is provided in the air box 6. An arc-shaped top 8 is provided at the top of the air chamber 7. A honeycomb air mesh 9 is fitted inside the air chamber 7. A diaphragm valve 10 is connected to the air chamber 7. An air pipe 11 is connected to the diaphragm valve 10. An adjustment assembly is evenly installed on the air tube 11. The adjustment assembly includes a sealing plug 12, an adjustment column 13 is fitted at the bottom end of the sealing plug 12, an extraction column 14 is slidably connected to the adjustment column 13, a hinge seat 15 is provided on the adjustment column 13, a rotating shaft 16 is hinged on the hinge seat 15, a hinge rod 17 is fitted on the rotating shaft 16, and a crank rod 18 is hinged on the hinge rod 17. The crank rod 18 and the extraction column 14 are rotatably connected. A picking device is evenly installed inside the working chamber 2.

[0028] When equalizing the pressure of extraction column 14, it is placed in a ring. The air pump 100 is started to extract gas from the gas tank 4 inside the connecting sleeve 3, and the gas directly enters the gas box 6. The gas box 6 has an arc-shaped top 8 that disperses the gas, which is then evenly distributed through the honeycomb gas mesh 9. When the gas pressure reaches the set value, it passes through the membrane valve 10, and in conjunction with the ring gas delivery device, equalizes the pressure of parallel sample extractions, effectively avoiding uneven pressure distribution among multiple extraction columns 14, thereby improving extraction quality and equipment efficiency.

[0029] When adjusting the extraction column 14, gas is delivered to the sealing plug 12 via the gas pipe 11, and the extraction process is completed inside the extraction column 14. At this time, the internal space of the extraction column 14 can be adjusted as needed to simulate different working conditions. Specifically, the sliding adjustment column 13 moves within the extraction column 14 to achieve spatial adjustment; simultaneously, the rotating shaft 16 on the hinge seat 15 rotates accordingly, and the connected hinge rod 17 drives the crank rod 18 to rotate synchronously, cooperating to adjust the angle. This design significantly improves the adjustment performance and working efficiency of the equipment.

[0030] In existing equipment extraction processes, a fixed-size extraction column 14 is used for extraction, which results in poor adjustability.

[0031] The parallel sample high-efficiency positive pressure extraction device of this application solves the practical problem of poor adjustment performance by adding an adjustment column 13 and an extraction column 14 for sliding adjustment.

[0032] Please see Figure 5 As one embodiment of a positive pressure extraction device for efficient parallel sample processing: a roller 19 is rotatably connected to the gas pipe 11, a connecting piece 20 is rotatably connected to the roller 19, a motor 21 is mounted on the connecting piece 20, a machine base 22 is connected to the connecting piece 20, a motor 23 is mounted on the machine base 22, a lead screw 24 is mounted at the output end of the motor 23, a sleeve 25 is threadedly connected to the lead screw 24, a limit post 26 is slidably connected to the sleeve 25, and the limit post 26 is connected to the machine base 22.

[0033] Specifically, when adjusting the pressure and ventilation time of the air pipe 11, the motor 21 can be started to drive the roller 19 to rotate on the connecting piece 20, thereby causing the equipment to slide along the air pipe 11. The position of the equipment can be adjusted to adjust the gas interception position of the air pipe 11, thereby adjusting the gas passage and interception time. During this process, the motor 23 on the machine base 22 can be started to rotate, and the motor 23 drives the lead screw 24 to rotate. Through the threaded connection between the lead screw 24 and the jacket 25, the jacket 25 is driven to push the air pipe 11, thereby adjusting the amount of gas passing through. During this process, in order to prevent the jacket 25 from rotating, a limiting post 26 is added to make the jacket 25 slide along the limiting post 26.

[0034] Please see Figure 1 and Figure 9 As one embodiment of a positive pressure extraction device for efficient processing of parallel samples: a support 27 is provided at the bottom of the gas box 6, and a turntable 28 is provided at the bottom of the support 27. The turntable 28 and the connecting sleeve 3 are rotatably connected.

[0035] Specifically, when the equipment is in use, the gas box 6 is supported by the bracket 27, and the turntable 28 at the bottom can be driven to rotate, thereby adjusting the position of the extraction column 14 and improving the stability of the equipment.

[0036] Please see Figure 1 and Figure 7 As one embodiment of a positive pressure extraction device for efficient parallel sample processing: the picking device includes a mounting base 29, the top end of the mounting base 29 is connected to the bottom end of the turntable 28, a support rod 30 is rotatably connected to the mounting base 29, a connecting block 31 is rotatably connected to the support rod 30, a pull rod 32 is hinged to the connecting block 31, a buckle 33 is hinged to the pull rod 32, a double-headed frame 34 is clamped to the buckle 33, a clamping mechanism is clamped to the double-headed frame 34, the clamping mechanism and the extraction column 14 are fixedly fitted together, and an outlet 35 is provided through the working chamber 2.

[0037] Specifically, when the equipment is picked up, the extraction column 14 is pulled, which causes the clamping mechanism connected to it to move accordingly. During this process, the extraction column 14 causes the double-headed frame 34 connected to it to move accordingly, and the buckle 33 moves accordingly. During the movement, as the position changes, the angle of the pull rod 32 and the connecting block 31 rotates. During this process, the support rod 30 rotates on the mounting base 29.

[0038] Please see Figure 1 and Figure 7As one embodiment of a positive pressure extraction device for efficient parallel sample processing: the clamping mechanism includes a positioning sleeve 36, which is fixedly fitted with the extraction column 14. A split pin 37 is clamped on the positioning sleeve 36. The bottom end of the split pin 37 is connected to the top end of the double-headed frame 34. A pin 38 is slidably connected inside the split pin 37. A spring 39 is fitted on the pin 38.

[0039] Specifically, when the extraction column 14 is clamped, it is clamped to the extraction column 14 by the positioning sleeve 36. During this process, the pin 38 is pulled to slide and rise within the split pin 37. The split pin 37 gradually closes after losing its internal thrust. During this process, the split pin 37 and the positioning sleeve 36 are clamped. After clamping, the pin 38 is released to reset it under the tension of the spring 39, thereby opening the split pin 37 and improving the modularity of the equipment.

[0040] Please see Figure 1 and Figure 9 As one embodiment of a positive pressure extraction device for efficient processing of parallel samples: a gear 40 is mounted on the turntable 28, a gear 41 is meshed with the gear 40, a motor 42 is mounted on the connecting sleeve 3, and the output end of the motor 42 is connected to the bottom end of the gear 41.

[0041] Specifically, when driving the equipment, the second motor 42 is started to rotate on the connecting sleeve 3. The rotation drives the second gear 41 to rotate as well. Through the meshing relationship between the second gear 41 and the first gear 40, the turntable 28 is driven to rotate.

[0042] Please see Figure 1 and Figure 6 As one embodiment of a positive pressure extraction device for efficient processing of parallel samples: a gear 3 43 is provided on the rotating shaft 16, a machine base 2 44 is provided on the hinge seat 15, a motor 3 45 is provided on the machine base 2 44, and a gear 46 is provided at the output end of the motor 3 45. The gear 3 43 and the gear 46 mesh with each other.

[0043] Specifically, when driving the equipment, the motor 3 45 on the base 2 44 is started to rotate, which drives the gear 46 to rotate. Through the meshing relationship between the gear 3 43 and the gear 46, the rotating shaft 16 is driven to rotate accordingly.

[0044] Please see Figure 1 and Figure 8As one embodiment of a positive pressure extraction device for efficient parallel sample processing: the double-headed frame 34 and the buckle 33 are provided with a through hole 47, the through hole 47 is internally threaded with a bolt 48, and the pull rod 32 is equipped with a limit clip 49.

[0045] Specifically, when the double-headed frame 34 and the buckle 33 are fastened together, the bolt 48 is rotated to lock it in the threaded hole 47. During this process, in order to prevent the buckle 33 and the pull rod 32 from rotating excessively and causing the extraction column 14 to tilt, a limit card 49 is added to support the buckle 33.

[0046] Please see Figure 1 and Figure 8 As one embodiment of a positive pressure extraction device for efficient processing of parallel samples: a slide rail 50 is provided on the pull rod 32, a slider 51 is slidably connected to the slide rail 50, a connecting seat 52 is provided on both the slider 51 and the support rod 30, a connecting rod 53 is hinged on the connecting seat 52, and a spring 54 is rotatably connected to the connecting rod 53 and the connecting seat 52.

[0047] Specifically, when the pull rod 32 is pulled, the connecting rod 53, which is hinged to the connecting seat 52, changes the angle of the support rod 30 and the pull rod 32, thereby pulling the slider 51, which is rotatably connected to it, to slide and adjust its position along the slide rail 50, thus stabilizing the sliding of the equipment. After being released, the equipment loses the pulling force, and under the action of the second spring 54, it pulls the connecting rod 53, thereby driving the support rod 30 and the pull rod 32 to reset.

[0048] Please see Figure 1 and Figure 9 As one embodiment of a positive pressure extraction device for efficient processing of parallel samples: a positioning disk 55 is fitted on the connecting sleeve 3.

[0049] Specifically, after the support rod 30 is reset, in order to prevent the extraction column 14 from tilting due to excessive rotation of the support rod 30, a positioning plate 55 is installed on the connecting sleeve 3 to support and limit the support rod 30.

[0050] In summary, the overall equipment is in use: When equalizing the pressure of the extraction column 14, the extraction column 14 is placed in a ring. During this process, the air pump 100 is started to extract the gas from the gas tank 4 in the connecting sleeve 3. After extraction, the gas directly enters the gas box 6. The gas box 6 is equipped with an arc-shaped top 8, which disperses the gas. After dispersion, the gas is evenly dispersed with the honeycomb gas mesh 9. During this process, after the gas reaches a certain pressure, it passes through the membrane valve 10 and is used in conjunction with the ring gas delivery system to equalize the pressure of parallel sample extraction, thus avoiding uneven pressure distribution during extraction by multiple extraction columns 14.

[0051] When adjusting the extraction column 14, the gas passes through the gas pipe 11 to the sealing plug 12, and the gas is extracted within the extraction column 14. During this process, the space within the extraction column 14 can be adjusted to simulate different situations. The sliding adjustment column 13 slides within the extraction column 14, allowing for space adjustment. During adjustment, the rotating shaft 16 on the hinge seat 15 rotates accordingly, and the connected hinge rod 17 drives the crank rod 18 to rotate synchronously to adjust the angle. When adjusting the pressure and ventilation time of the gas pipe 11, the motor 21 can be started to drive the roller shaft 19 to rotate on the connecting piece 20, thereby causing the device to slide along the gas pipe 11. The gas interception position of the gas pipe 11 can be adjusted by adjusting the position of the device, thus adjusting the gas passage and interception time. During this process, the motor 23 on the machine base 22 can be started to rotate, driving the lead screw 24 to... The rotation, through the threaded connection between the lead screw 24 and the jacket 25, drives the jacket 25 to push the gas pipe 11, thereby adjusting the amount of gas passing through. During this process, to prevent the jacket 25 from rotating, a limiting post 26 is added to make the jacket 25 slide along the limiting post 26. When the equipment is in use, the gas box 6 is supported by the bracket 27, and the turntable 28 at the bottom can be driven to rotate, thereby adjusting the position of the extraction column 14. When driving the equipment, the second motor 42 is started to rotate on the connecting sleeve 3, which drives the second gear 41 to rotate. Through the meshing relationship between the second gear 41 and the first gear 40, the turntable 28 is driven to rotate. When driving the equipment, the third motor 45 on the base 2 44 is started to rotate, which drives the fourth gear 46 to rotate. Through the meshing relationship between the third gear 43 and the fourth gear 46, the rotating shaft 16 is driven to rotate, thereby improving the automation level of equipment adjustment.

[0052] When the equipment is being retrieved, pulling the extraction column 14 causes the connected locking mechanism to shift. During this process, the extraction column 14, in turn, causes the connected double-headed frame 34 and locking buckle 33 to shift. As the position changes, the angles of the pull rod 32 and connecting block 31 rotate, and the support rod 30 rotates on the mounting base 29. This improves the ease of retrieving different extraction columns 14 through pulling and resetting. When locking the extraction column 14, the positioning sleeve 36 locks it in place. During this process, pulling the pin 38 causes it to slide and rise within the split pin 37. The split pin 37 gradually retracts as it loses its internal thrust, locking the split pin 37 and positioning sleeve 36. After locking, releasing the pin 38 allows it to reset under the tension of the spring 39, thus locking the split pin 37 back into place. 7. When the double-headed frame 34 and the buckle 33 are fastened together, the bolt 48 is rotated to lock the thread in the insertion hole 47. During this process, in order to prevent the buckle 33 and the pull rod 32 from rotating excessively and causing the extraction column 14 to tilt, a limit card 49 is added to support the buckle 33. When the pull rod 32 is pulled, the connecting rod 53, which is hinged to the connecting seat 52, changes the angle of the support rod 30 and the pull rod 32, and pulls the slider 51 that is rotatably connected to it, so that it slides along the slide rail 50 to adjust its position, thereby stabilizing the sliding of the equipment. After being released, the equipment loses the tension. Under the action of the second spring 54, it pulls the connecting rod 53 to drive the support rod 30 and the pull rod 32 to reset. After the support rod 30 is reset, in order to prevent the support rod 30 from rotating excessively and causing the extraction column 14 to tilt, a positioning plate 55 is added to the connecting sleeve 3 to support and limit the support rod 30.

[0053] In all the solutions mentioned above, for connections between two components, welding, bolt and nut connection, bolt or screw connection, or other known connection methods can be selected according to the actual situation. These will not be elaborated here. For all fixed connections mentioned above, welding is preferred. The above are merely preferred embodiments of this application and are not intended to limit the invention. Although this application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A parallel sample high-efficiency positive pressure extraction device, characterized in that: include: Box (1), the box (1) is provided with a working cavity (2); A pressure equalization assembly is evenly installed in the working chamber (2). A connecting sleeve (3) is provided in the working chamber (2). An air tank (4) is provided in the connecting sleeve (3). An air pump (100) is connected to the output end of the air tank (4). A rotary joint (5) is provided at the output end of the air pump (100). An air box (6) is rotatably connected to the rotary joint (5). An air chamber (7) is provided in the air box (6). An arc-shaped top (8) is provided at the top of the air chamber (7). A honeycomb air mesh (9) is fitted inside the air chamber (7). A diaphragm valve (10) is connected to the air chamber (7). An air pipe (11) is connected to the diaphragm valve (10). An adjustment assembly is evenly installed on the air tube (11). The adjustment assembly includes a sealing plug (12). An adjustment column (13) is fitted at the bottom end of the sealing plug (12). An extraction column (14) is slidably connected to the adjustment column (13). A hinge seat (15) is provided on the adjustment column (13). A rotating shaft (16) is hinged on the hinge seat (15). A hinge rod (17) is fitted on the rotating shaft (16). A crank rod (18) is hinged on the hinge rod (17). The crank rod (18) and the extraction column (14) are rotatably connected. The picking device is evenly installed in the working chamber (2).

2. The parallel sample high-efficiency positive pressure extraction device according to claim 1, characterized in that: A roller shaft (19) is rotatably connected to the air pipe (11). A connecting piece (20) is rotatably connected to the roller shaft (19). A motor (21) is provided on the connecting piece (20). A machine base (22) is connected to the connecting piece (20). A motor (23) is provided on the machine base (22). A lead screw (24) is provided at the output end of the motor (23). A sleeve (25) is threadedly connected to the lead screw (24). A limit post (26) is slidably connected to the sleeve (25). The limit post (26) is connected to the machine base (22).

3. The parallel sample high-efficiency positive pressure extraction device according to claim 2, characterized in that: The bottom end of the air box (6) is provided with a bracket (27), and the bottom end of the bracket (27) is provided with a turntable (28). The turntable (28) and the connecting sleeve (3) are rotatably connected.

4. The parallel sample high-efficiency processing positive pressure extraction device according to claim 3, characterized in that: The picking device includes a mounting base (29), the top of which is connected to the bottom of the turntable (28). A support rod (30) is rotatably connected to the mounting base (29), and a connecting block (31) is rotatably connected to the support rod (30). A pull rod (32) is hinged to the connecting block (31), and a buckle (33) is hinged to the pull rod (32). A double-headed frame (34) is fitted to the buckle (33), and a clamping mechanism is fitted to the double-headed frame (34). The clamping mechanism and the extraction column (14) are fixedly fitted together, and an outlet (35) is provided through the working chamber (2).

5. The parallel sample high-efficiency positive pressure extraction device according to claim 4, characterized in that: The mounting mechanism includes a positioning sleeve (36), which is fixedly fitted with the extraction column (14). A split pin (37) is mounted on the positioning sleeve (36). The bottom end of the split pin (37) is connected to the top end of the double-headed frame (34). A pin (38) is slidably connected inside the split pin (37). A spring (39) is mounted on the pin (38).

6. A parallel sample high-efficiency positive pressure extraction device according to any one of claims 1-3, characterized in that: Gear 1 (40) is mounted on the turntable (28), and gear 2 (41) is meshed with gear 1 (40). Motor 2 (42) is mounted on the connecting sleeve (3), and the output end of motor 2 (42) is connected to the bottom end of gear 2 (41).

7. A parallel sample high-efficiency positive pressure extraction device according to any one of claims 1 or 2, characterized in that: Gear 3 (43) is provided on the rotating shaft (16), and machine base 2 (44) is provided on the hinge seat 1 (15). Motor 3 (45) is provided on the machine base 2 (44), and gear 4 (46) is provided at the output end of the motor 3 (45). Gear 3 (43) and gear 4 (46) mesh with each other.

8. The parallel sample high-efficiency positive pressure extraction device according to claim 5, characterized in that: The double-headed frame (34) and the buckle (33) are provided with a through hole (47), and the through hole (47) is connected with a bolt (48) by an internal thread. The pull rod (32) is provided with a limit card (49).

9. The parallel sample high-efficiency processing positive pressure extraction device according to claim 8, characterized in that: The pull rod (32) is provided with a slide rail (50), and a slider (51) is slidably connected on the slide rail (50). Both the slider (51) and the support rod (30) are provided with connecting seats (52). A connecting rod (53) is hinged on the connecting seat (52). The connecting rod (53) and the connecting seat (52) are rotatably connected with a spring (54).

10. The parallel sample high-efficiency positive pressure extraction device according to claim 1, characterized in that: The connecting sleeve (3) is fitted with a positioning plate (55).

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