A total particulate extraction station and extraction device

Abstract

The utility model discloses a kind of total particulate matter extraction operation platform, including second workbench, sliding member, locking piece, first workbench, bottom plate, pressing plate and connecting piece, first workbench is connected second workbench by sliding member, so that second workbench and first workbench constitute sliding guide cooperation, locking piece is set between first workbench and second workbench;Second workbench is provided with bottom plate, and pressing plate is provided on bottom plate, and pressing plate and bottom plate are detachably installed by connecting piece.The utility model has the beneficial effects that:the setting of a kind of total particulate matter extraction operation platform is mainly to solve the problem that extraction bottle is not easy to replace, when needing replacement, second workbench is extracted from first workbench, to avoid interference with other components of extraction device.After replacement, by locking piece fast locking, so that second workbench forms a whole again, guarantee the stability of a kind of total particulate matter extraction operation platform.

Description

Technical Field

[0001] This utility model relates to the field of cigarette production technology, and in particular to a total particulate matter extraction operating table and extraction device. Background Technology

[0002] Cigarette smoke is a complex mixture formed by a series of chemical reactions in tobacco under combustion conditions, including gasification, decomposition, dehydration, aromatization, oxidation, and reduction, or by gasification and condensation at a certain temperature. Mainstream cigarette smoke generally consists of two parts: a particulate phase and a gaseous phase. Analysis of the particulate phase often involves using a smoke trap to capture the particulate components of cigarette smoke, then removing a glass fiber filter from the trap and placing it in an extraction flask for solvent extraction. This method is inefficient and limits the conditions for simultaneous comparative experiments.

[0003] Chinese patent document CN222733944U discloses an automatic extraction device for flue gas components, including a base and a vortex oscillation unit, the vortex oscillation unit being mounted on the base; several extraction bottles being arranged inside the vortex oscillation unit; a three-dimensional moving platform being arranged between the base and the vortex oscillation unit, enabling adjustment of the vortex oscillation unit along the length, width, and height directions, thereby improving the convenience of the extraction process.

[0004] However, since the extraction bottle is directly mounted on the vortex oscillation unit, when the extraction bottle needs to be replaced, the vortex oscillation unit needs to be removed from the base. If it is moved directly by the three-dimensional moving platform, the structure and operation path are complicated, and it is easy to cause accidental contact, which makes it impossible to directly achieve the purpose of extracting the vortex oscillation unit.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The technical problem to be solved by this utility model is to solve the problem of inconvenience in replacing the extraction bottle.

[0007] This utility model solves the above-mentioned technical problems through the following technical means:

[0008] This utility model claims a total particulate matter extraction operating table, including a second worktable, a sliding member, a locking member, a first worktable, a base plate, a pressure plate, and a connecting member. The first worktable is connected to the second worktable through the sliding member, so that the second worktable and the first worktable form a sliding guide fit. A locking member is provided between the first worktable and the second worktable. The second worktable is provided with a base plate, and a pressure plate is provided on the base plate. The pressure plate and the base plate are detachably installed and removed from each other through the connecting member.

[0009] The purpose of this total particulate matter extraction operating table is to solve the problem of difficulty in replacing the extraction flask. When replacement is needed, the second operating table is pulled out from the first operating table to avoid interference with other components of the extraction device. After replacement, the second operating table is quickly locked in place by a locking mechanism, making it a complete unit again and ensuring the stability of the total particulate matter extraction operating table.

[0010] Preferably, the sliding element includes a slide rail and a slider. The first worktable is provided with a slide rail and / or a slider, which, together with another slider and / or another slide rail provided on the second worktable, forms a sliding guide engagement along the width direction of the first worktable.

[0011] The sliding mechanism is designed to allow the second worktable to slide relative to the first worktable and to guide the sliding path.

[0012] Preferably, the first worktable has a flat plate structure with first slide rails on both sides of the plate, and the second worktable has an inverted U-shaped plate structure. The first worktable is placed horizontally inside the second worktable, and the slide rails and the first sliders provided on the inner wall of the second worktable form a sliding guide engagement.

[0013] The U-shaped plate design of the second worktable not only provides installation space for the slider, but also effectively restricts the first worktable, preventing derailment during sliding.

[0014] Preferably, the locking element includes a first locking unit and a second locking unit. The first locking unit is located between the first worktable and the second worktable. When the second worktable slides to coincide with the surface of the first worktable, the first locking unit is in a locked state. When the first locking unit is in a locked state, the second locking unit connects the second worktable and the first worktable.

[0015] The first locking unit and the second locking unit work together to lock the first worktable and the second worktable.

[0016] Preferably, the first locking unit includes a first blocking block and a second blocking block. The first blocking block is protruding from the upper surface of the first worktable, and the second blocking block is protruding from the bottom surface of the second worktable. The height of the second blocking block and the first blocking block is less than the vertical distance between the first worktable and the second worktable. When the second worktable slides to coincide with the surface of the first worktable, the protrusion and / or the recessed groove on the first blocking block form an interlocking engagement with another recessed groove and / or another protruding protrusion on the second blocking block.

[0017] The first and second blocking blocks are interlocked to prevent slippage on the second worktable.

[0018] Preferably, the second locking unit includes a third blocking block, a fourth baffle, and a fastening bolt. The third blocking block is provided on the front side of the second worktable, and the fourth baffle is provided on the front side of the first worktable. The fourth baffle is perpendicular to the first worktable. When the second worktable slides to coincide with the surface of the first worktable, the fourth baffle and the third blocking block are in contact, the fastening bolt passes through the fourth baffle, and the fastening bolt is threadedly engaged with the third blocking block.

[0019] The first and second worktables are connected by fastening bolts to form a whole, ensuring the stability of the total particulate matter extraction operation table.

[0020] Preferably, the connector includes a positioning unit and a fixing unit. The positioning unit is provided between the pressure plate and the base plate, and the pressure plate and the base plate are connected in the middle by the fixing unit. The fixing unit and the positioning unit are staggered from each other.

[0021] The positioning unit is mainly used to pre-position the pressure plate. After the pressure plate is in the correct position, the pressure plate and the base plate are connected by the fixing unit. The fixing unit is located in the middle of the pressure plate and the base plate to ensure uniform force distribution. The entire pressure plate can be fixed by one fixing unit.

[0022] Preferably, the positioning unit includes a positioning pin and a positioning hole. The positioning pin is provided on the upper surface of the base plate. The positioning pin is in the shape of a stepped shaft, and the diameter of the upper end is smaller than the diameter of the lower end. The positioning hole is connected to the pressure plate. The positioning hole and the positioning pin are inserted and engaged until the lower surface of the pressure plate abuts against the shoulder of the positioning pin.

[0023] The lower surface of the pressure plate abuts against the shoulder of the positioning pin, thus positioning the pressure plate. The pressure plate then limits the extraction bottle, thereby achieving the initial positioning of the extraction bottle.

[0024] Preferably, the fixing unit includes a rod, a hole, and a locking nut. The rod is provided in the middle of the base plate, the axis of the rod is perpendicular to the base plate, the rod is stepped and the upper diameter is smaller than the lower diameter, the small diameter section of the rod is provided with external thread, the hole is provided in the middle of the pressure plate, the hole and the rod are inserted and engaged, until the lower plate of the pressure plate abuts against the shoulder of the rod, and the external thread engages with the locking nut thread.

[0025] The lower surface of the pressure plate abuts against the shoulder of the insertion rod, and then the locking nut engages with the threaded section of the small diameter section of the insertion rod to fix the pressure plate, thus ultimately fixing the extraction bottle.

[0026] This utility model claims protection for an extraction device, including a base, a vortex oscillation unit, and a total particulate matter extraction operating table. The base is provided with a vortex oscillation unit, and the vortex oscillation unit is provided with a total particulate matter extraction operating table.

[0027] The purpose of this total particulate matter extraction operating stage is to address the problem of difficult replacement of extraction flasks. By incorporating a total particulate matter extraction operating stage on a vortex oscillation unit, when replacement is needed, the second operating stage is pulled out from the first operating stage, avoiding interference with other components of the extraction device. After replacement, a locking mechanism quickly locks the second operating stage back into a single unit, ensuring the stability of the total particulate matter extraction operating stage. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a total particulate matter extraction operating table according to Embodiment 1 of this utility model;

[0029] Figure 2 This is an exploded view of a total particulate matter extraction operating table according to Embodiment 1 of this utility model;

[0030] Figure 3 This is a schematic diagram of the sliding component in Embodiment 1 of this utility model;

[0031] Figure 4 This is a top view of the sliding component in Embodiment 1 of this utility model;

[0032] Figure 5 This is a longitudinal cross-sectional view of a total particulate matter extraction operating table according to Embodiment 1 of this utility model;

[0033] Figure 6 This is a schematic diagram of the first and second blocking blocks in Embodiment 1 of this utility model;

[0034] Figure 7 This is a schematic diagram of the connector in Embodiment 1 of this utility model.

[0035] 1. Vortex oscillation unit;

[0036] 20. Second workbench;

[0037] 210. First slide rail; 211. First slider;

[0038] 2201, First blocking block; 2202, Second blocking block; 2210, Third blocking block; 2211, Fourth baffle; 2212, Fastening bolt;

[0039] 23. First workbench;

[0040] 24. Base plate;

[0041] 25. Pressure plate;

[0042] 2601, Locating pin; 2602, Locating hole; 2610, Insert rod; 2611, Insertion hole; 2612, Locking nut. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0044] Example 1

[0045] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This embodiment claims protection for a total particulate matter extraction operating table, including a second worktable 20, a sliding member, a locking member, a first worktable 23, a base plate 24, a pressure plate 25, and a connecting member.

[0046] A second worktable 20 is disposed above the first worktable 23, and sliding members are provided between them, so that the first worktable 23 and the second worktable 20 form a sliding guide engagement. Specifically, the first worktable 23 is flat, and first slide rails 210 are provided on both sides of the flat plate. The second worktable 20 has an inverted U-shaped plate structure, with the flat plate placed horizontally inside the U-shaped plate, and the first slide rails 210 and the first sliders 211 provided on the inner wall of the U-shaped plate form a sliding guide engagement.

[0047] The U-shaped design of the second worktable 20 not only provides installation space for the slider but also effectively restricts the first worktable 23, preventing derailment during sliding. However, the second worktable 20 is not limited to an inverted U-shaped structure; it can also be a flat plate with the first worktable 23 having a U-shaped structure, or both the first and second worktables 23 can be flat plates, achieving the same sliding effect.

[0048] Similarly, the slider and slide rail are mainly used to adjust the sliding of the second worktable 20. Therefore, according to the actual processing difficulty and application requirements, the first worktable 23 can be equipped with a second slider, and the second slider and the second slide rail on the second worktable 20 can form a sliding guide cooperation.

[0049] A locking element is provided between the first worktable 23 and the second worktable 20. The locking element is mainly used to lock the second worktable 20 into the first worktable 23 to form a whole. Specifically, the locking element includes a first locking unit and a second locking unit. The first locking unit locks the second worktable 20 when it slides to coincide with the surface of the first worktable 23, restricting the second worktable 20 from sliding further. When the first locking unit is in the locked state, the second locking unit locks the second worktable 20 and the first worktable 23, so that they form a whole.

[0050] See Figure 4 , Figure 5 and Figure 6 The first locking unit includes a first blocking block 2201 and a second blocking block 2202. The first blocking block 2201 is protruding from the upper surface of the first worktable 23. The first blocking block 2201 has an inverted L-shaped structure. The second blocking block 2202 is protruding from the bottom surface of the second worktable 20. The second blocking block 2202 is cylindrical, and a circular groove is formed on the cylindrical surface along the circumference. When the second worktable 20 slides to coincide with the surface of the first worktable 23, the horizontal plate of the first blocking block 2201 is inserted into the circular groove, and the first locking unit is locked. The heights of the first blocking block 2201 and the second blocking block 2202 are both less than the gap between the first worktable 23 and the second worktable 20.

[0051] The overlap of the surfaces of the second worktable 20 and the first worktable 23 means that the second worktable 20 slides into the interior of the first worktable 23, with the front side of the first worktable 23 flush with the front side of the second worktable 20, and the rear side of the first worktable 23 flush with the rear side of the second worktable 20. The first stop block 2201 is not limited to an inverted L-shaped structure; it can also be set as a cross shape or a T-shape. The second stop block 2202 is not limited to a cylindrical shape; it is only necessary to ensure that the adjacent surfaces of the second stop block 2202 and the first stop block 2201 are interlocked.

[0052] The gap between the first worktable 23 and the second worktable 20 refers to the vertical distance between the first worktable 23 and the second worktable 20 when the slider and the slide rail are in contact. The gap is set mainly to avoid obstruction and interference from the first stop block 2201 or the second stop block 2202 during the sliding process.

[0053] The second locking unit includes a third blocking block 2210, a fourth baffle 2211, and a fastening bolt 2212. The third blocking block 2210 is provided on the front side of the second worktable 20, and the fourth baffle 2211 is provided on the front side of the first worktable 23. The fourth baffle 2211 is perpendicular to the first worktable 23. When the second worktable 20 slides to coincide with the surface of the first worktable 23, the fourth baffle 2211 and the third blocking block 2210 are in contact, and the fastening bolt 2212 passes through the fourth baffle 2211 and is threadedly engaged with the third blocking block 2210.

[0054] The fastening bolt 2212 is preferably an anti-loosening bolt to avoid the loss of small parts. The connection between the fourth baffle 2211 and the third stop block 2210 is not limited to a bolt connection, but can also be set as a buckle, a pin, or a first locking device, which can be determined according to the actual working conditions. When it is the first locking device, the third stop block 2210 is preferably equipped with a first conical clamping pin, and the fourth baffle 2211 is correspondingly equipped with a first locking device that cooperates with it. In use, when the second worktable 20 slides to coincide with the surface of the first worktable 23, the fourth baffle 2211 and the third stop block 2210 are in contact. At this time, the first conical clamping pin is inserted into the first locking device, and the first locking device is fixed by directly turning it. This is the prior art and will not be described in detail.

[0055] The first locking unit and the second locking unit work together to lock the first worktable 23 and the second worktable 20. Specifically, firstly, the second worktable 20 is pushed, and through the cooperation of the slide rail and slider, it moves inward toward the first worktable 23. When it moves to the point where the first stop block 2201's horizontal plate engages with the annular groove, the surfaces of the first worktable 23 and the second worktable 20 overlap, and the fourth baffle 2211 and the third stop block 2210 are in contact. This process is to allow the operator to perceive that the second worktable 20 has been pushed inward. Then, the fastening bolt 2212 is turned, and the fastening bolt 2212 engages with the threaded third stop block 2210, making the first worktable 23 and the second worktable 20 form a single unit.

[0056] See Figure 1 and Figure 7 A base plate 24 is installed above the second workbench 20, and an extraction bottle is placed on the base plate 24. Specifically, four pins are connected to the lower surface of the base plate 24, and the pins are engaged with corresponding pin holes on the upper surface of the second workbench 20. Sixteen blind holes are evenly distributed on the upper surface of the base plate 24, and the diameter of the blind holes is adapted to the lower end of the extraction bottle. Sixteen through holes are correspondingly distributed on the surface of the pressure plate 25, and the through holes are adapted to the upper end of the extraction bottle.

[0057] The four pins are preferably arranged diagonally on the lower surface of the base plate 24, and the number of pins is not limited to four. For example, when there are two pins, they can be arranged diagonally on the lower surface of the base plate 24. The number of blind holes is not limited to sixteen, and can be determined according to the extraction bottle required for the extraction experiment. It should be noted that space needs to be reserved in the middle and at the four corners of the base plate 24 to facilitate the fixing of the extraction bottle.

[0058] Positioning pins 2601 are provided at the four corners of the upper surface of the base plate 24. The positioning pins 2601 are stepped shafts with the upper diameter smaller than the lower diameter. Positioning holes 2602 are passed through the four corners of the pressure plate 25. When the through holes are engaged with the upper end of the extraction bottle, the positioning pins 2601 and the positioning holes 2602 are inserted and engaged. At this time, the lower surface of the pressure plate 25 abuts against the shoulder of the positioning pins 2601. Thus, the positioning of the pressure plate 25 is achieved, and the pressure plate 25 limits the extraction bottle. Therefore, the initial positioning of the extraction bottle is achieved.

[0059] A rod 2610 is installed in the middle of the upper surface of the base plate 24. The axis of the rod 2610 is perpendicular to the base plate 24. The rod 2610 is stepped and the diameter of the upper end is smaller than that of the lower end. The small diameter section of the rod 2610 is provided with external threads. The middle of the pressure plate 25 has a through hole 2611. When the through hole is engaged with the upper end of the extraction bottle, the through hole 2611 and the rod 2610 are inserted and engaged. At this time, the lower surface of the pressure plate 25 abuts against the shoulder of the rod 2610. Then, the locking nut 2612 engages with the thread of the small diameter section of the rod 2610 to fix the pressure plate 25, and finally fix the extraction bottle.

[0060] In practical use, the fixing of the base plate 24 and the pressure plate 25 includes, but is not limited to, the threaded connection of the locking nut 2612 and the insertion rod 2610. Alternatively, the insertion rod 2610 can be configured to cooperate with the second conical clamping pin and the second locking device. In use, the insertion hole 2611 passes through the middle of the pressure plate 25. When the through hole is engaged with the upper end of the extraction bottle, the insertion hole 2611 and the second conical clamping pin are engaged. At this time, the lower plate surface of the pressure plate 25 abuts against the shoulder of the second conical clamping pin, and the second conical clamping pin is inserted into the second locking device. Fixing is achieved by twisting the second locking device. This is existing technology and will not be described in detail.

[0061] Example 2

[0062] This embodiment requires protection of the extraction device, including a base, a vortex oscillation unit 1, and a total particulate matter extraction operating table. The vortex oscillation unit 1 is mounted on the base, and the total particulate matter extraction operating table is mounted on the vortex oscillation unit 1. Specifically, a first worktable 23 is connected to the oscillator adapter plate via connecting bolts. During installation, it is preferable that the front side of the second worktable 20 faces the operator's position in the extraction device.

[0063] The purpose of this total particulate matter extraction operating table is to solve the problem of difficulty in replacing the extraction flask. By setting up a total particulate matter extraction operating table on the vortex oscillation unit 1, when replacement is needed, the second working table 20 is pulled out from the first working table 23, avoiding interference with other components of the extraction device. After replacement, the locking mechanism quickly locks the second working table 20 back into a single unit, ensuring the stability of the total particulate matter extraction operating table.

[0064] This type of total particulate matter extraction operating table allows for the rapid replacement of extraction flasks without interfering with other components of the extraction device. The process includes:

[0065] To remove the extraction bottle, loosen the fastening bolt 2212, pull the second worktable 20. Due to the action of the sliding part, the second worktable 20 partially slides out of the first worktable 23. Therefore, the second worktable 20 is also away from the oscillator adapter plate and other parts of the extraction device. Twist the locking nut 2612, remove the pressure plate 25, and the extraction bottle can be removed.

[0066] To install the extraction bottle, place it in the blind hole, align the positioning pin 2601 with the positioning hole 2602, place the pressure plate 25 to achieve initial positioning of the extraction bottle, and engage the locking nut 2612 with the small diameter section of the insertion rod 2610 to fix the extraction bottle.

[0067] Push the second worktable 20 so that it slides into the first worktable 23. At this time, the first blocking block 2201 inserts into the annular groove, and the second worktable 20 stops slipping. At the same time, the fourth baffle 2211 fits into the third blocking block 2210. Twist the fastening bolt 2212 and engage it with the thread of the third blocking block 2210, so that the second worktable 20 and the first worktable 23 are fixed to each other.

[0068] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A total particulate matter extraction operating table, characterized in that, The system includes a second worktable (20), a sliding member, a locking member, a first worktable (23), a base plate (24), a pressure plate (25), and a connecting member. The first worktable (23) is connected to the second worktable (20) through the sliding member, so that the second worktable (20) and the first worktable (23) form a sliding guide fit. A locking member is provided between the first worktable (23) and the second worktable (20). The second worktable (20) is provided with a base plate (24), and a pressure plate (25) is provided on the base plate (24). The pressure plate (25) and the base plate (24) are detachably installed through the connecting member.

2. The total particulate matter extraction operating table according to claim 1, characterized in that, The sliding component includes a slide rail and a slider. The first worktable (23) is provided with a slide rail and / or a slider, which, together with another slider and / or another slide rail provided on the second worktable (20), forms a sliding guide engagement along the width direction of the first worktable (23).

3. The total particulate matter extraction operating table according to claim 2, characterized in that, The first worktable (23) has a flat plate structure, and the first slide rail (210) is provided on both sides of the flat plate. The second worktable (20) has an inverted U-shaped plate structure. The first worktable (23) is placed horizontally inside the second worktable (20), and the slide rail and the first slider (211) provided on the inner wall of the second worktable (20) form a sliding guide cooperation.

4. The total particulate matter extraction operating table according to claim 1, characterized in that, The locking component includes a first locking unit and a second locking unit. The first locking unit is located between the first worktable (23) and the second worktable (20). When the second worktable (20) slides to coincide with the surface of the first worktable (23), the first locking unit is in a locked state. When the first locking unit is in a locked state, the second locking unit connects the second worktable (20) and the first worktable (23).

5. The total particulate matter extraction operating table according to claim 4, characterized in that, The first locking unit includes a first blocking block (2201) and a second blocking block (2202). The first blocking block (2201) is protruding from the upper surface of the first worktable (23), and the second blocking block (2202) is protruding from the bottom surface of the second worktable (20). The height of the second blocking block (2202) and the first blocking block (2201) is less than the vertical distance between the first worktable (23) and the second worktable (20). When the second worktable (20) slides to coincide with the surface of the first worktable (23), the protrusion and / or the recessed groove on the first blocking block (2201) and the recessed groove and / or the protruding protrusion on the second blocking block (2202) form a plug-in fit.

6. The total particulate matter extraction operating table according to claim 4, characterized in that, The second locking unit includes a third blocking block (2210), a fourth baffle (2211), and a fastening bolt (2212). The third blocking block (2210) is provided on the front side of the second worktable (20), and the fourth baffle (2211) is provided on the front side of the first worktable (23). The fourth baffle (2211) is perpendicular to the first worktable (23). When the second worktable (20) slides to coincide with the surface of the first worktable (23), the fourth baffle (2211) and the third blocking block (2210) are in contact, and the fastening bolt (2212) passes through the fourth baffle (2211) and is threadedly engaged with the third blocking block (2210).

7. The total particulate matter extraction operating table according to claim 1, characterized in that, The connector includes a positioning unit and a fixing unit. The positioning unit is set between the pressure plate (25) and the base plate (24). The middle part of the pressure plate (25) and the base plate (24) are connected by a fixing unit. The fixing unit and the positioning unit are staggered.

8. The total particulate matter extraction operating table according to claim 7, characterized in that, The positioning unit includes a positioning pin (2601) and a positioning hole (2602). The positioning pin (2601) is provided on the upper surface of the base plate (24). The positioning pin (2601) is in the shape of a stepped shaft, and the diameter of the upper end is smaller than the diameter of the lower end. The plate surface of the pressure plate (25) passes through the positioning hole (2602). The positioning hole (2602) and the positioning pin (2601) are inserted and engaged until the lower surface of the pressure plate (25) abuts against the shoulder of the positioning pin (2601).

9. The total particulate matter extraction operating table according to claim 7, characterized in that, The fixing unit includes a plug rod (2610), a socket (2611), and a locking nut (2612). The plug rod (2610) is set in the middle of the upper plate of the base plate (24). The axis of the plug rod (2610) is perpendicular to the base plate (24). The plug rod (2610) is in the shape of a stepped shaft, and the diameter of the upper end is smaller than that of the lower end. The small diameter section of the plug rod (2610) is provided with an external thread. The socket (2611) is passed through the middle of the plate of the pressure plate (25). The socket (2611) is inserted and engaged with the plug rod (2610) until the lower plate of the pressure plate (25) abuts against the shoulder of the plug rod (2610). The external thread is engaged with the thread of the locking nut (2612).

10. An extraction apparatus, characterized in that, The system includes a total particulate matter extraction operating table, a base, and a vortex oscillation unit (1) as described in any one of claims 1 to 9. The base is provided with the vortex oscillation unit (1), and the vortex oscillation unit (1) is provided with a total particulate matter extraction operating table.

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