Device for ultrasonic extraction

Abstract

The present invention relates to the technical field of ultrasonic extraction, and particularly discloses a device for ultrasonic extraction, the device comprises a tank body capable of being placed in a test tube, the tank body is used for containing a sample, the wall surface of the tank body is provided with a permeation hole through which an extraction solvent in the test tube can pass, and the diameter of the permeation hole is smaller than the particle diameter of the sample. Samples contained in the tank body can be distributed according to the shape of the tank body, so that the samples are prevented from being stacked, and the surface area of the samples can be increased; the permeation holes are formed in the wall surfaces of the tank body, so that an extraction solvent in the test tube can be in full contact with a sample, and compared with a sample stacked at the bottom of the test tube, the contact area of the extraction solvent and the sample is increased, and the ultrasonic extraction efficiency can be improved; in addition, the diameter of the permeation hole is smaller than the particle diameter of the sample, so that the sample can be prevented from leaking from the tank body and accumulating in the test tube.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrasonic extraction, and more particularly to a device for ultrasonic extraction. Background Art

[0002] Ultrasonic extraction is an extraction method that uses the cavitation effect, mechanical effect and thermal effect of ultrasound to accelerate the release, diffusion and dissolution of effective substances in cells, significantly improving the extraction efficiency. The main theoretical basis of ultrasonic extraction is the cavitation effect, thermal effect and mechanical effect of ultrasound. When high-energy ultrasound acts on the medium, the medium is torn into many small holes, which are closed instantly and produce instantaneous pressures of up to several thousand atmospheres, which is the cavitation phenomenon. The bursting of tiny bubbles in ultrasonic cavitation will generate great pressure, causing the rupture of plant cell walls and the entire organism to be completed in an instant, shortening the crushing time. At the same time, the vibration generated by ultrasound strengthens the release, diffusion and dissolution of intracellular substances, thereby significantly improving the extraction efficiency.

[0003] Ultrasonic extraction technology is widely used in chemical substance analysis. It is the most commonly used ultrasonic extraction method. By adding samples and extraction solvents into glass test tubes, ultrasonic extraction of target chemicals is performed and instrumental analysis is performed. Since glass test tubes are often slender structures with a small bottom area, if samples are directly added to glass test tubes, the samples tend to accumulate at the bottom of the glass test tubes and cannot fully contact with the extraction solvent. If the bottom area is increased, such as using a conical flask as a sample container for ultrasound, it will inevitably occupy more ultrasound pool area. Under the premise of the same ultrasound pool area, the number of samples that can be ultrasounded at one time will decrease.

[0004] Therefore, it is necessary to provide a device for ultrasonic extraction to at least partially solve the problems existing in the prior art. Summary of the invention

[0005] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0006] In order to at least partially solve the above-mentioned problems, the present invention provides a device for ultrasonic extraction, comprising: a trough body that can be placed in a test tube, the trough body is used to hold the sample, and the wall surface of the trough body is provided with a penetration hole that allows the extraction solvent in the test tube to pass through, and the diameter of the penetration hole is smaller than the particle diameter of the sample.

[0007] Preferably, the groove is formed between two sleeved cylinders, the opening of the first cylinder located on the outside faces upward, and the opening of the second cylinder located on the inside faces downward, and a groove is formed between the inside of the first cylinder and the outside of the second cylinder;

[0008] A supporting portion extending outward is provided at the bottom of the second cylinder, and the supporting portion is used to be connected to the interior of the first cylinder.

[0009] Preferably, the difference in inner diameters between the first cylinder and the second cylinder is greater than the particle diameter of the sample; after the first cylinder is placed in the test tube, its top opening is flush with the tube mouth of the test tube, and the height of the second cylinder is lower than that of the first cylinder.

[0010] Preferably, the first cylinder and the second cylinder are both metal mesh cylinders, or the first cylinder is a cellulose filter paper cylinder and the second cylinder is a metal mesh cylinder.

[0011] Preferably, the trough body is a rectangular box, including a top cover and a box body that are locked with each other, the sample is placed in the box body, and the box body and the top cover are metal mesh.

[0012] Preferably, the sample is wrapped with filter paper and then placed in the box.

[0013] Preferably, it further comprises: a support basket for installing the rectangular box, the support basket comprising: a backboard, and a support rod arranged on the side of the backboard and extending vertically; the backboard is evenly distributed with first limiting grooves, and the rectangular box is connected to the first limiting grooves through a clamping piece;

[0014] When a plurality of rectangular parallelepiped boxes are mounted on the support basket, there are gaps between adjacent rectangular parallelepiped boxes.

[0015] Preferably, the clamping member includes: an elastic body, a first limiting portion clamped with the first limiting groove is provided on the outer side of the lower part of the elastic body, a second limiting portion is provided on the outer side of the upper part of the elastic body, a second limiting groove clamped with the second limiting portion is provided on the rectangular box, and a gap is left between the first limiting portion and the second limiting portion.

[0016] Preferably, the elastic body comprises: an upper support sheet, an upper deformation section, an intermediate support sheet, a lower deformation section and a lower support sheet arranged in sequence; the diameter of the intermediate support sheet is larger than the diameters of the upper support sheet and the lower support sheet, the diameters of the middle parts of the upper deformation section and the lower deformation section are smaller than the diameters of the two end parts thereof, and the outer side surfaces of the upper deformation section and the lower deformation section are arc-shaped surfaces;

[0017] The lower support piece and at least half of the lower deformation section are wrapped in the first limiting portion, and the upper support piece and at least half of the upper deformation section are wrapped in the second limiting portion.

[0018] Preferably, the first limiting part and the second limiting part each include: two splicing unit bodies, each of which is provided with a receiving area for receiving the elastic body; one end of the splicing unit body away from the middle supporting sheet is provided with a limiting plane, a boss is extended on the limiting plane, and a limiting block is extended outwardly from the boss;

[0019] The first limiting groove is provided with a first notch corresponding to the limiting block on the first limiting part, and the second limiting groove is provided with a second notch corresponding to the limiting block on the second limiting part.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] In the device for ultrasonic extraction described in the present invention, the sample contained in the trough body can be distributed according to the shape of the trough body, thereby preventing the sample from piling up and increasing the surface area of ​​the sample; the wall surface of the trough body is provided with penetration holes, so that the extraction solvent in the test tube can fully contact with the sample, and compared with the sample piling up at the bottom of the test tube, the contact area between the extraction solvent and the sample is increased, thereby improving the efficiency of ultrasonic extraction; in addition, the diameter of the penetration hole is smaller than the particle diameter of the sample, thereby preventing the sample from leaking out of the trough body and piling up in the test tube.

[0022] The device for ultrasonic extraction described in the present invention, other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a cross-sectional schematic diagram of a first structure of the device for ultrasonic extraction according to the present invention placed in a test tube;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the first structure of the device for ultrasonic extraction according to the present invention;

[0026] Figure 3 It is an exploded schematic diagram of a first structure of the device for ultrasonic extraction according to the present invention;

[0027] Figure 4 It is a schematic structural diagram of the second cylinder in the first structure of the device for ultrasonic extraction according to the present invention;

[0028] Figure 5 This is a schematic diagram of the second structure of the device for ultrasonic extraction according to the present invention being placed in a test tube;

[0029] Figure 6 It is an exploded schematic diagram of a second structure of the device for ultrasonic extraction according to the present invention;

[0030] Figure 7 This is a schematic diagram of a third structure of the device for ultrasonic extraction according to the present invention placed in a test tube;

[0031] Figure 8 is a schematic diagram of a third structure of the device for ultrasonic extraction according to the present invention;

[0032] Fig. 9 It is a schematic diagram of a top view of the support basket in the third structure of the device for ultrasonic extraction according to the present invention;

[0033] Fig.10 It is a schematic structural diagram of the bending portion in the third structure of the device for ultrasonic extraction according to the present invention;

[0034] Fig.11 It is a schematic structural diagram of the second limiting groove in the third structure of the device for ultrasonic extraction according to the present invention;

[0035] Fig.12 It is a structural schematic diagram of a clamping member in the third structure of the device for ultrasonic extraction according to the present invention;

[0036] Fig.13 This is a schematic diagram of the internal structure of the clamping member in the third structure of the device for ultrasonic extraction according to the present invention;

[0037] Fig.14 This is a schematic diagram of the structure of the elastomer in the third structure of the device for ultrasonic extraction according to the present invention;

[0038] Fig.15 It is a schematic diagram of an exploded view of a third structure of the device for ultrasonic extraction according to the present invention;

[0039] Fig.16 It is a structural schematic diagram of a splicing unit body of a second limiting part in the third structure of the device for ultrasonic extraction according to the present invention;

[0040] Fig.17 It is a schematic structural diagram of a splicing unit body of a first limiting part in a third structure of the device for ultrasonic extraction according to the present invention;

[0041] Fig.18 It is a schematic cross-sectional structure diagram of the installation of the clamping parts in the third structure of the device for ultrasonic extraction described in the present invention. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0043] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0044] like Figure 1-Figure 18 As shown, the present invention provides a device for ultrasonic extraction, comprising: a trough body that can be placed in a test tube 1, the trough body is used to hold a sample, and a wall surface of the trough body is provided with a penetration hole that allows the extraction solvent in the test tube 1 to pass through, and the diameter of the penetration hole is smaller than the particle diameter of the sample.

[0045] The sample contained in the trough body can be distributed according to the shape of the trough body, thereby preventing sample accumulation and increasing the surface area of ​​the sample; the wall surface of the trough body is provided with penetration holes, so that the extraction solvent in the test tube 1 can fully contact with the sample, and compared with the sample accumulated at the bottom of the test tube 1, the contact area between the extraction solvent and the sample is increased, which can improve the efficiency of ultrasonic extraction; in addition, the diameter of the penetration hole is smaller than the particle diameter of the sample, which can prevent the sample from leaking out of the trough body and accumulating in the test tube 1.

[0046] The following three possible structures are provided for the specific structure of the tank:

[0047] like Figure 1-Figure 4 As shown, the first structure is as follows:

[0048] In one embodiment, the groove is formed between two sleeved cylinders, the opening of the first cylinder 2 located on the outside faces upward, and the opening of the second cylinder 3 located on the inside faces downward, and a groove is formed between the inner side of the first cylinder 2 and the outer side of the second cylinder 3;

[0049] The bottom of the second cylinder 3 is provided with a support portion 310 extending outward, and the support portion 310 is used to connect with the inside of the first cylinder 2 .

[0050] The support portion 310 at the bottom of the second barrel 3 can be fixedly connected to the inner bottom of the first barrel 2, for example, connected as an integral structure, or snap-connected. When the two are snap-connected and fixed, the support portion 310 at the bottom of the second barrel 3 can be set to an elastic structure, and a protrusion is provided at the lower interior of the first barrel 2. During installation, the support portion 310 elastically deforms inward when it moves down to the protrusion, and rebounds after moving to the bottom of the protrusion. In this way, the second barrel 3 is snap-connected to the inside of the first barrel 2, so that the annular area between the second barrel 3 and the first barrel 2 forms a trough for holding samples.

[0051] Furthermore, the difference between the inner diameters of the first cylinder 2 and the second cylinder 3 is greater than the particle diameter of the sample. After the first cylinder 2 is placed in the test tube 1, its top surface opening is flush with the tube mouth of the test tube 1, and the height of the second cylinder 3 is lower than the height of the first cylinder 2.

[0052] In order to increase the contact area between the sample and the extraction solvent and facilitate the placement of the sample, the difference in inner diameters between the first cylinder 2 and the second cylinder 3 is greater than the particle diameter of the sample; the sample is added, which is generally placed in the annular area formed between the first cylinder 2 and the second cylinder 3 and the top of the second cylinder 3, and then the first cylinder 2 and the second cylinder 3 are placed in the test tube 1, and the extraction solvent is added to the test tube 1. The liquid level of the extraction solvent should be higher than that of the second cylinder 3, so that the extraction solvent can immerse the sample.

[0053] Furthermore, the first cylinder 2 and the second cylinder 3 are both metal mesh cylinders.

[0054] The grid of the metal mesh cylinder serves as a penetration hole, and its maximum size is smaller than the particle diameter of the sample. The extraction solvent can pass through the outside of the first cylinder 2 to directly contact the sample, or pass through the outside of the first cylinder 2 and enter the inside of the second cylinder 3, and pass through the inside of the second cylinder 3 to enter the groove body in the annular area to contact the sample. In this way, the contact area between the sample and the extraction solvent is greatly improved, which can improve the ultrasonic extraction efficiency.

[0055] Alternatively, the first cylinder 2 is a cellulose filter paper cylinder, and the second cylinder 3 is a metal mesh cylinder.

[0056] In addition to allowing the extraction solvent to pass through, the cellulose filter paper cartridge can also act as a filter to prevent impurities from entering the extracted solution. The filter paper allows the extraction solvent to penetrate.

[0057] like Figure 5-Figure 6 As shown, the second structure is as follows:

[0058] In one embodiment, the trough body is a rectangular parallelepiped box 4, including a top cover 410 and a box body 420 that are locked together, the sample is placed in the box body 420, and the box body 420 and the top cover 410 are metal meshes.

[0059] The metal mesh grid serves as a penetration hole, which is smaller than the particle diameter of the sample. The rectangular box 4 is preferably slender. After the sample is added to the box body 420, the top cover 410 is snapped onto the box body 420, and then the rectangular box 4 is placed in the test tube 1. The sample in the test tube 1 adapts to the shape of the rectangular box 4 and is distributed along the length direction of the test tube 1, and will not accumulate at the bottom of the test tube 1; then, the extraction solvent is added to the test tube 1. The liquid level of the extraction solvent is higher than the top of the rectangular box 4, so the extraction solvent can penetrate from any wall of the rectangular box 4 to fully contact with the sample, thereby increasing the contact area between the two and improving the extraction efficiency.

[0060] Furthermore, the sample is wrapped with filter paper and placed in the box body 420 .

[0061] Before placing the sample into the box body 420, the sample may be wrapped with filter paper. The filter paper plays a filtering role to prevent impurities from entering the extracted solution, and the filter paper allows the extraction solvent to penetrate.

[0062] like Figure 7-Figure 18 As shown, the third structure is as follows:

[0063] In one embodiment, it further comprises: a support basket 5 for installing the rectangular box 4, the support basket 5 comprising: a backboard 510, and a support rod 520 arranged on the side of the backboard 510 and extending vertically; the backboard 510 is evenly distributed with first limiting grooves 511, and the rectangular box 4 is connected to the first limiting grooves 511 through a clamping member 6;

[0064] The top of the support rod 520 is provided with a bending portion 521 for hanging on the test tube 1;

[0065] When a plurality of cuboid boxes 4 are mounted on the support basket 5 , there are gaps between adjacent cuboid boxes 4 .

[0066] The entire support basket 5 may also be a metal mesh.

[0067] In order to facilitate the removal and placement of the rectangular box 4, in this embodiment, the rectangular box 4 in the second structure can be connected to the support basket 5 through the clamping piece 6 (suitable for installing a rectangular box 4 on the backboard 510). When placing the rectangular box 4, the rectangular box 4 can be placed in the test tube 1 through the support rod 520, and the top of the support rod 520 is hung on the tube mouth of the test tube 1 through the bending part 521. It can also prevent the rectangular box 4 from colliding with the test tube 1 during ultrasonic extraction, thereby preventing damage to the test tube 1.

[0068] In order to further increase the contact area between the sample in the rectangular box 4 in the second structure and the extraction solvent, and to facilitate the removal and placement of the rectangular box 4, the size of the rectangular box 4 is reduced, and at least two rectangular boxes 4 are installed on the backboard 510. There are gaps between the multiple rectangular boxes 4, which can ensure that the sample in each rectangular box 4 can fully contact with the extraction solvent; by placing the samples in multiple rectangular boxes 4 respectively, the exposed surface area of ​​the sample can be increased, so that the extraction solvent can penetrate from the wall of each rectangular box 4 and fully contact with the sample, thereby increasing the contact area between the sample and the extraction solvent, thereby ensuring the extraction efficiency.

[0069] Furthermore, the clamping member 6 includes: an elastic body 610, a first limiting portion 620 clamped with the first limiting groove 511 is provided on the outer side of the lower part thereof, a second limiting portion 630 is provided on the outer side of the upper part thereof, and a second limiting groove 411 clamped with the second limiting portion 630 is provided on the rectangular box 4, and a gap distance is left between the first limiting portion 620 and the second limiting portion 630.

[0070] Since the contact between the extraction solvent and the sample in the test tube 1 is static, it takes time for the sample located in the center of the rectangular box 4 to contact the extraction solvent. Therefore, in order to promote the contact between the sample located in the center of the rectangular box 4 and the extraction solvent, the sample located in the rectangular box 4 can generate a small movement to enhance the contact effect between the sample and the extraction solvent.

[0071] Therefore, in this embodiment, the elastomer 610 on the clamp 6 is utilized to enable the first limiting portion 620 and the second limiting portion 630 to be centered on the vertical center line of the elastomer 610, and to be tilted in any direction away from the center under the driving action of an external force, and to be tilted in the opposite direction again under the elastic recovery force of the elastomer 610, so that the rectangular box 4 can produce irregular tilting movement in any lateral direction relative to the support basket 5, so that the sample particles inside it produce slight movements and changes in position, thereby increasing the probability of the sample located in the center part contacting the extraction solvent, thereby increasing the contact area and contact effect, and promoting the extraction efficiency.

[0072] Furthermore, the first limiting portion 620 and the second limiting portion 630 are used to engage with the backboard 511 and the rectangular box 4 respectively, without affecting the fixation of the rectangular box 4 and the backboard 511 .

[0073] Furthermore, the elastic body 610 includes: an upper support sheet 611, an upper deformation section 612, an intermediate support sheet 613, a lower deformation section 614 and a lower support sheet 615 which are arranged in sequence; the diameter of the intermediate support sheet 613 is larger than the diameters of the upper support sheet 611 and the lower support sheet 615, the diameters of the middle parts of the upper deformation section 612 and the lower deformation section 614 are smaller than the diameters of the two end parts thereof, and the outer side surfaces of the upper deformation section 612 and the lower deformation section 614 are arc-shaped surfaces;

[0074] The lower support piece 615 and at least half of the lower deformation section 614 are wrapped in the first limiting portion 620 , and the upper support piece 611 and at least half of the upper deformation section 612 are wrapped in the second limiting portion 630 .

[0075] The shapes of the upper deformation section 612 and the lower deformation section 614 enable them to have the ability to bend and deform elastically. The lower support piece 615 and a part of the lower deformation section 614 are wrapped in the first limit portion 620, and the upper support piece 611 and a part of the upper deformation section 612 are wrapped in the second limit portion 630, so that when no external force is applied, the first limit portion 620 and the second limit portion 630 can maintain a vertical state. The less the deformation section is wrapped by the limit portion, the easier it is to deform. Therefore, in order to ensure stable support and a certain deformation ability, at least half of the deformation section is wrapped in the limit portion.

[0076] The upper support piece 611 is used to increase the connection strength between the elastomer 610 and the second limiting portion 630, the lower support piece 615 is used to increase the connection strength between the elastomer 610 and the first limiting portion 620, and the middle support piece 613 is used to maintain the balance between the upper and lower deformations and to play a limiting role when the deformation is too large; after the two limiting portions are respectively connected to the backboard 511 and the rectangular box 4, the clamping part 6 can play a stable supporting role for the rectangular box 4, and can generate bending deformation under the action of external force, thereby causing the rectangular box 4 to shake and changing the position of the sample inside it.

[0077] Further, the first limiting portion 620 and the second limiting portion 630 each include: two splicing unit bodies 640, wherein the splicing unit body 640 is provided with a receiving area 641 for receiving the elastic body 610; a limiting plane 642 is provided at one end of the splicing unit body 640 away from the middle support sheet 613, a boss 643 is extended from the limiting plane 642, and a limiting block 644 is extended outward from the boss 643;

[0078] The first limiting groove 511 is provided with a first notch 512 corresponding to the limiting block 644 on the first limiting portion 620 , and the second limiting groove 411 is provided with a second notch 412 corresponding to the limiting block 644 on the second limiting portion 630 .

[0079] The splicing unit body 640 is provided with an insert block 645 and a slot 646 on both sides of the accommodating area 641 , respectively. The end of the insert block 645 is provided with a first magnetic sheet, and the slot 646 is provided with a second magnetic sheet adsorbed with the first magnetic sheet.

[0080] The first limiting portion 620 and the second limiting portion 630 are both composed of two splicing unit bodies 640, and the two splicing unit bodies 640 are fixed to the outside of the elastomer 610 by magnetic connection. Specifically, an insert block 645 and a slot 646 are respectively provided on one splicing unit body 640, and the insert block 645 and the slot 646 can be mutually adsorbed through the first magnetic sheet and the second magnetic sheet. Therefore, after the two splicing unit bodies 640 are sleeved on the outside of the elastomer 610 and contacted with each other, the insert block 645 of one splicing unit body 645 is inserted into and adsorbed in the slot 646 of the other splicing unit body 646, and at the same time, the upper part or the lower part of the elastomer 610 is limitedly connected between the two splicing unit bodies 640.

[0081] When the first limiting portion 620 and the second limiting portion 630 are respectively engaged with the first limiting groove 511 and the second limiting groove 411, the boss 643 and the limiting block 644 on the first limiting portion 620 are respectively inserted into the first limiting groove 511 and the first notch 512, and rotated after being inserted into place so that the first notch 512 and the limiting block 644 are staggered, so that the top surface and the bottom surface of the first limiting groove 511 are engaged between the limiting plane 642 and the limiting block 644; the second limiting portion 630 and the second limiting groove 411 are engaged in the same manner, which will not be repeated here;

[0082] By means of the above method, the rectangular box 4 and the backboard 510 can be snap-fitted together, and after being snap-fitted and fixed, the limiting grooves can also limit the radial direction of the two splicing unit bodies 640 to prevent the two from being disengaged.

[0083] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0084] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0085] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A device for ultrasonic extraction, characterized in that: include: A trough body capable of being placed in a test tube (1) and used to contain a sample; a wall surface of the trough body is provided with a permeation hole capable of allowing an extraction solvent in the test tube (1) to pass through; the diameter of the permeation hole is smaller than the particle diameter of the sample.

2. The device for ultrasonic extraction according to claim 1, characterized in that: The groove is formed between two sleeved cylinders, the opening of the first cylinder (2) located on the outside faces upward, and the opening of the second cylinder (3) located on the inside faces downward, and a groove is formed between the inside of the first cylinder (2) and the outside of the second cylinder (3); The bottom of the second cylinder (3) is provided with a support portion (310) extending outwards, and the support portion (310) is used to be connected to the inside of the first cylinder (2).

3. The device for ultrasonic extraction according to claim 2, characterized in that: The difference between the inner diameters of the first cylinder (2) and the second cylinder (3) is greater than the particle diameter of the sample; after the first cylinder (2) is placed in the test tube (1), its top surface opening is flush with the tube mouth of the test tube (1); and the height of the second cylinder (3) is lower than the height of the first cylinder (2).

4. The device for ultrasonic extraction according to claim 2, characterized in that: The first cylinder (2) and the second cylinder (3) are both metal mesh cylinders, or the first cylinder (2) is a cellulose filter paper cylinder and the second cylinder (3) is a metal mesh cylinder.

5. The device for ultrasonic extraction according to claim 1, characterized in that: The trough body is a rectangular parallelepiped box (4), comprising a top cover (410) and a box body (420) that are locked together, the sample is placed in the box body (420), and the box body (420) and the top cover (410) are in the shape of metal meshes.

6. The device for ultrasonic extraction according to claim 5, characterized in that: The sample is wrapped with filter paper and placed in the box body (420).

7. The device for ultrasonic extraction according to claim 5, characterized in that: Also includes: A support basket (5) for installing a rectangular parallelepiped box (4), the support basket (5) comprising: a backboard (510), and a support rod (520) arranged on the side of the backboard (510) and extending vertically; first limiting grooves (511) are evenly distributed on the backboard (510), and the rectangular parallelepiped box (4) is connected to the first limiting grooves (511) via a clamping piece (6); When a plurality of rectangular parallelepiped boxes (4) are mounted on the support basket (5), gaps exist between adjacent rectangular parallelepiped boxes (4).

8. The device for ultrasonic extraction according to claim 7, characterized in that: The clamping member (6) comprises: an elastic body (610), a first limiting portion (620) is provided on the outer side of the lower part of the elastic body and is clamped with the first limiting groove (511), and a second limiting portion (630) is provided on the outer side of the upper part of the elastic body; a second limiting groove (411) is provided on the rectangular box (4) and is clamped with the second limiting portion (630); a gap is left between the first limiting portion (620) and the second limiting portion (630).

9. The device for ultrasonic extraction according to claim 8, characterized in that: The elastic body (610) comprises: an upper support sheet (611), an upper deformation section (612), an intermediate support sheet (613), a lower deformation section (614) and a lower support sheet (615) which are arranged in sequence; the diameter of the intermediate support sheet (613) is larger than the diameters of the upper support sheet (611) and the lower support sheet (615); the diameters of the middle portions of the upper deformation section (612) and the lower deformation section (614) are smaller than the diameters of the two end portions thereof; and the outer side surfaces of the upper deformation section (612) and the lower deformation section (614) are arc-shaped surfaces; The lower support piece (615) and at least half of the lower deformation section (614) are wrapped in the first limiting portion (620), and the upper support piece (611) and at least half of the upper deformation section (612) are wrapped in the second limiting portion (630).

10. The device for ultrasonic extraction according to claim 9, characterized in that: The first limiting portion (620) and the second limiting portion (630) both comprise: two splicing unit bodies (640), wherein a receiving area (641) for receiving the elastic body (610) is provided in the splicing unit body (640); a limiting plane (642) is provided at one end of the splicing unit body (640) away from the middle supporting sheet (613), a boss (643) is extended from the limiting plane (642), and a limiting block (644) is extended outwardly from the boss (643); The first limiting groove (511) is provided with a first notch (512) corresponding to the limiting block (644) on the first limiting portion (620), and the second limiting groove (411) is provided with a second notch (412) corresponding to the limiting block (644) on the second limiting portion (630).

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