CN216653460U

CN216653460U - High-efficient medicinal material draws jar

Info

Publication number: CN216653460U
Application number: CN202122423357.9U
Authority: CN
Inventors: 植飞; 刘衡; 杨杰; 闫锦宏; 陈新
Original assignee: Wuhan Polytechnic University
Current assignee: Wuhan Polytechnic University
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-06-03
Anticipated expiration: 2031-10-08

Abstract

The utility model discloses a high-efficiency medicinal material extraction tank which comprises a tank body, an extrusion device, a first screen and a second screen, wherein an extraction cavity is formed inside the tank body; the first screen and the second screen are detachably arranged in the extraction cavity along the vertical direction so as to divide the extraction cavity into a first extraction cavity, a second extraction cavity and a third extraction cavity which are sequentially arranged along the vertical direction and are mutually communicated; the squeezing device comprises a first squeezing plate and a second squeezing plate, the first squeezing plate and the second squeezing plate are oppositely arranged in the second extraction cavity, and the first squeezing plate and the second squeezing plate can move relatively close to or far away from the second extraction cavity to squeeze medicinal materials in the second extraction cavity. The technical scheme provided by the utility model aims to solve the problems of low extraction efficiency and resource waste of the existing extraction tank.

Description

High-efficient medicinal material draws jar

Technical Field

The utility model relates to the technical field of medicinal material extraction equipment, in particular to a high-efficiency medicinal material extraction tank.

Background

The extraction process of the medicinal materials refers to a process that a solvent enters cell tissues of the medicinal materials and dissolves active ingredients of the cell tissues to form a leaching solution. The material is the mass transfer process of the effective components from solid to liquid. The extraction process can be divided into 4 stages: infiltration and infiltration stage, desorption and dissolution stage, diffusion stage and replacement stage. The mutual connection of all the stages, wherein the obstruction or limitation of any one stage can lead to the reduction of the transfer rate of the effective components and directly influence the curative effect of the Chinese patent medicine.

Present medicinal material extraction technology, it is main to grind the medicinal material earlier and smash, then soak in adding the extraction container with the medicinal material after smashing and extraction solvent, material extraction in the operation such as stirring heating comes out with the medicinal material, but because the medicinal material texture after smashing differs, soaking the in-process, the medicinal material that the texture is lighter can float on extracting the solvent, the medicinal material that the texture is heavier can sink into the bottom of extracting the container, so can lead to floating and can't soak completely in the medicinal material that extracts the solvent upper end, lead to the extraction efficiency to reduce, also lead to extravagant a large amount of raw and other materials simultaneously, after soaking simultaneously, directly discharge the dregs of a decoction and drop, extract solution in the dregs of a decoction is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an efficient medicinal material extraction tank, and aims to solve the problems of low extraction efficiency and resource waste of the existing extraction tank.

In order to achieve the above object, the present invention provides an efficient medicinal material extraction tank, which comprises:

the tank body is internally provided with an extraction cavity;

the first screen and the second screen are detachably arranged in the extraction cavity along the up-down direction so as to divide the extraction cavity into a first extraction cavity, a second extraction cavity and a third extraction cavity which are sequentially arranged along the up-down direction and are mutually communicated; and the number of the first and second groups,

the squeezing device comprises a first squeezing plate and a second squeezing plate, wherein the first squeezing plate and the second squeezing plate are oppositely arranged in the second extraction cavity, and can move relatively close to or far away from the second extraction cavity to squeeze medicinal materials in the second extraction cavity.

Optionally, the extrusion device further comprises two driving mechanisms, and the two driving mechanisms are respectively in driving connection with the first extrusion plate and the second extrusion plate.

Optionally, the drive mechanism comprises a drive cylinder.

Optionally, drive actuating cylinder and include fixing base and telescopic link, the fixing base is located the outside of the jar body, the fixing base is located to the telescopic link telescopically, the telescopic link is kept away from the one end of fixing base runs through the jar body extremely the second draws the intracavity, with extrusion device connects.

Optionally, the tank body has a first side wall and a second side wall corresponding to the first extrusion plate and the second extrusion plate, respectively, and a third side wall and a fourth side wall connected between the first side wall and the second side wall;

and a waste material outlet is formed in the second extraction cavity and is positioned on one of the third side wall and the fourth side wall.

Optionally, the waste outlet is provided with a door panel for opening or closing the waste outlet.

Optionally, the high-efficiency medicinal material extraction tank further comprises two stirring devices, one of which is arranged in the first extraction cavity, and the other of which is arranged in the third extraction cavity.

Optionally, the stirring device comprises a stirring shaft which is arranged in the extraction cavity, the stirring shaft extends in the up-down direction, one end of the stirring shaft, which is far away from the inner wall of the tank body, is provided with a plurality of stirring blades, and the plurality of stirring blades are arranged along the circumferential direction of the stirring shaft;

the medicinal material draws jar still includes the motor, the motor is located outside the jar body, the output shaft of motor run through the inner wall of jar body with agitator shaft connection.

Optionally, the lower extreme of the jar body is equipped with the discharge gate, the position of discharge gate is equipped with the filter screen, filter screen detachably installs the discharge gate.

Optionally, the aperture of the filter screen is smaller than the aperture of the first screen, and the aperture of the filter screen is smaller than the aperture of the second screen.

In the technical scheme of the utility model, as the medicinal materials have different textures, in the soaking process, the medicinal material with lighter texture can float on the surface of the extraction solvent, and the medicinal material with heavier texture can sink to the bottom of the extraction cavity, therefore, a first screen and a second screen are arranged in the extraction cavity, the first screen and the second screen are both arranged in the extraction cavity along the vertical direction, the extraction cavity is divided into a first extraction cavity, a second extraction cavity and a third extraction cavity, wherein the medicinal material is placed in the second extraction cavity, the extraction solvent sequentially flows through the first extraction cavity, the second extraction cavity and the third extraction cavity until submerging the medicinal material in the second extraction cavity, the first screen and the second screen are used for preventing the medicinal material from floating or sinking so that the medicinal material can be always soaked in the extraction solvent, thereby improving the extraction efficiency, raw material waste is avoided; simultaneously, the second draws the intracavity and still is equipped with extrusion device, finishes when the extraction, will draw the extraction solution that makes in the chamber to take out, the medicinal material that the intracavity was drawed to the second is owing to long-time soaking in extracting the solvent, and the medicinal material inflation that absorbs water, medicinal material itself still contain and draw solution, in order to avoid extravagant, first stripper plate with the second stripper plate moves about in opposite directions, extrudees the medicinal material that the intracavity was drawed to the second draws the medicinal material, extrudees out the solution that still extracts of medicinal material itself to reduce the waste of resource.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of the high-efficiency medicinal material extracting cavity provided by the utility model;

fig. 2 is a schematic structural view of another view of the high-efficiency medicinal material extracting cavity in fig. 1.

The reference numbers indicate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, and the like under a certain posture (as shown in the drawing), and if the certain posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Present medicinal material extraction technology, it is main to grind the medicinal material earlier and smash, then soak in adding the extraction container with the medicinal material after smashing and extraction solvent, material extraction in the operation such as stirring heating comes out with the medicinal material, but because the medicinal material texture after smashing differs, soaking the in-process, the medicinal material that the texture is lighter can float on extracting the solvent, the medicinal material that the texture is heavier can sink into the bottom of extracting the container, so can lead to floating and can't soak completely in the medicinal material that extracts the solvent upper end, lead to the extraction efficiency to reduce, also lead to extravagant a large amount of raw and other materials simultaneously, after soaking simultaneously, directly discharge the dregs of a decoction and drop, the extraction solvent in the dregs of a decoction is wasted.

In view of the above, fig. 1 and 2 are views of an embodiment of the present invention, and the following description mainly describes the high-efficiency medicinal material extracting tank 100 with reference to the specific drawings.

Referring to fig. 1, a high-efficiency medicinal material extraction tank 100 includes a tank body 1, an extrusion device 4, a first screen 2 and a second screen 3, wherein an extraction cavity 11 is formed inside the tank body 1; the first screen 2 and the second screen 3 are detachably arranged in the extraction cavity 11 along the up-down direction so as to divide the extraction cavity 11 into a first extraction cavity 111, a second extraction cavity 112 and a third extraction cavity 113 which are sequentially arranged along the up-down direction and are communicated with each other; the squeezing device 4 comprises a first squeezing plate 41 and a second squeezing plate 42, the first squeezing plate 41 and the second squeezing plate 42 are oppositely arranged in the second extraction cavity 112, and the first squeezing plate 41 and the second squeezing plate 42 can move relatively close to or far away from each other to squeeze the medicinal material in the second extraction cavity 112.

In the technical scheme of the utility model, as the medicinal materials have different textures, in the soaking process, the medicinal material with lighter texture can float on the surface of the extraction solvent, and the medicinal material with heavier texture can sink to the bottom of the extraction cavity 11, therefore, a first screen 2 and a second screen 3 are arranged in the extraction cavity 11, the first screen 2 and the second screen 3 are both arranged in the extraction cavity 11 along the up-down direction, the extraction cavity 11 is divided into a first extraction cavity 111, a second extraction cavity 112 and a third extraction cavity 113, wherein the medicinal material is placed in the second extraction cavity 112, the extraction solvent sequentially flows through the first extraction cavity 111, the second extraction cavity 112 and the third extraction cavity 113 until submerging the medicinal material in the second extraction cavity 112, the first screen 2 and the second screen 3 are used for preventing the medicinal material from floating or sinking, so that the medicinal material can be always soaked in the extraction solvent, thereby improving the extraction efficiency and avoiding the waste of raw materials; simultaneously, still be equipped with extrusion device 4 in the second draws chamber 112, after the extraction finishes, will draw the solution that draws that makes in the chamber 11 to take out, the second draws the medicinal material in the chamber 112 because long-time soaking in extracting the solvent, and the medicinal material water absorption inflation, medicinal material itself still contain and draw the solution, in order to avoid extravagant, first stripper plate 41 with second stripper plate 42 moves about in opposite directions, extrudees the second draws the medicinal material in the chamber 112, extrudees out the solution that draws in the medicinal material itself still to reduce the waste of resource.

It should be noted that the extraction solvent for soaking the medicinal materials is initially added into the high-efficiency medicinal material extraction tank 100, and the final product is the extraction solution containing the extracted medicinal materials.

In addition, the driving mode of the extruding device 4 is not limited, and the extruding can be performed manually, or the driving mechanism 43 can be used for driving; specifically, referring to fig. 1, in an embodiment, the pressing device 4 further includes two driving mechanisms 43, and the two driving mechanisms 43 are respectively connected to the first pressing plate 41 and the second pressing plate 42 in a driving manner. In the actual extrusion process, the two driving mechanisms 43 respectively drive the first extrusion plate 41 and the second extrusion plate 42 to move oppositely, so as to extrude the medicinal materials in the second extraction cavity 112, and extrude the extraction solution in the medicinal materials, thereby avoiding resource waste; in addition, compared with the manual extrusion setting mode, the driving mechanism 43 is more convenient and automatic in extruding the medicinal materials.

Further, the arrangement manner of the driving mechanism 43 is not limited as long as the driving mechanism can drive the extruding device 4 to move, and in an embodiment, the driving mechanism 43 is configured as a driving motor; in another embodiment, the driving mechanism 43 includes a driving cylinder 431. The driving mechanism 43 is simpler to arrange to drive the cylinder 431 than the driving mechanism 43 is arranged to be a driving motor.

Further, referring to fig. 1, the driving cylinder 431 includes a fixing seat 4311 and a telescopic rod 4312, in order to avoid that the driving cylinder 431 occupies the volume of the second extraction cavity 112 additionally, which results in the reduction of the added medicinal materials, thereby affecting the extraction rate, in an embodiment, the fixing seat 4311 is disposed at the outer side of the tank 1, the telescopic rod 4312 is telescopically disposed on the fixing seat 4311, one end of the telescopic rod 4312 far from the fixing seat 4311 penetrates through the tank 1 to the interior of the second extraction cavity 112 to be connected with the extrusion device 4, so that when the extraction cavity 11 performs extraction, the telescopic rod 4312 is folded into the fixing seat 4311 to drive the extrusion device 4, so that the extrusion device 4 can be tightly attached to the inner side wall of the tank 1, and does not occupy the volume of the second extraction cavity 112 additionally, so that the medicinal materials can be placed in the second extraction cavity 112 as much as possible, thereby improving the extraction rate; after extraction, the retractable rod 4312 moves in a direction away from the fixed seat 4311 to drive the extrusion device 4 to move, so as to extrude the medicinal material in the second extraction cavity 112.

Referring to fig. 1, the can body 1 has a first side wall 12 and a second side wall 13 corresponding to the first pressing plate 41 and the second pressing plate 42, respectively, and a third side wall 14 and a fourth side wall 15 connected between the first side wall 12 and the second side wall 13; after the medicine materials in the second extraction cavity 112 are completely extruded, the medicine residues need to be cleaned out of the second extraction cavity 112, in an embodiment, a waste material outlet 5 is disposed on the second extraction cavity 112, the waste material outlet 5 is disposed on one of the third side wall 14 and the fourth side wall 15, and the waste material port is further disposed between the first extrusion plate 41 and the second extrusion plate 42, so that, after the first extrusion plate 41 and the second extrusion plate 42 are completely extruded, the first extrusion plate 41 and the second extrusion plate 42 move in opposite directions to release the clamping of the medicine residues, so that the medicine residues can be smoothly discharged from the waste material outlet 5.

In addition, in order to facilitate that the dregs in the second extraction cavity 112 can be smoothly discharged out of the second extraction cavity 112, referring to fig. 2, in an embodiment, the high-efficiency medicinal material extraction tank 100 further includes an ejection structure 6, the waste outlet 5 is disposed on the third side wall 14, the ejection structure 6 is disposed on the fourth side wall 15, the ejection structure 6 may be movably disposed near or far from the waste outlet 5, after the medicinal material in the second extraction cavity 112 is completely extruded, the first pressing plate 41 and the second pressing plate 42 move in opposite directions to release the clamping of the dregs, and the ejection structure 6 moves in a position near the waste outlet 5 to push the waste in the second extraction cavity 112 to extrude the waste out of the second extraction cavity 112, so that the discharging of the waste is more automated.

Referring to fig. 2, the waste outlet 5 is provided with a door 51, the door 51 is used for opening or closing the waste outlet 5, when the extraction solvent is used for soaking and extracting the medicinal materials, the door 51 closes the waste outlet 5 to prevent the extraction solvent or the medicinal materials in the second extraction cavity 112 from flowing out, and after the extraction is completed, the door 51 opens the waste outlet 5 to smoothly discharge the dregs in the second extraction cavity 112.

Meanwhile, in order to improve the extraction efficiency, the stirring devices 7 are disposed in the first extraction cavity 111 and the second extraction cavity 112, please refer to fig. 1, in an embodiment, the high-efficiency medicinal material extraction tank 100 further includes two stirring devices 7, one of which is disposed in the first extraction cavity 111, and the other of which is disposed in the third extraction cavity 113. Specifically, in the actual extraction process, agitating unit 7 is used for stirring extraction solvent for the diffusion velocity of molecule among the extraction solvent ensures that the concentration of the extraction solution of extracting any position preparation of chamber 11 can keep keeping basic unanimous, makes the chemical substance in the medicinal material can be come out by effectual extraction, thereby improves extraction efficiency, avoids extravagant raw and other materials.

In addition, referring to fig. 1, the efficient medicinal material extracting cavity 100 further includes a motor 73, the motor 73 is disposed in the tank body 1 and outside the tank body 1, and an output shaft of the motor 73 penetrates through an inner wall of the tank body 1 and is connected to the stirring shaft 71 to drive the stirring shaft 71 to rotate; the motor 73 is arranged outside the tank body 1, so that on one hand, the added amount of the extraction solvent is prevented from being reduced due to the fact that the motor 73 additionally occupies the volume of the extraction cavity 11, and on the other hand, the extraction solvent can be prevented from entering the motor 73 to corrode the motor 73 and damage the motor 73; in addition, in order to ensure the stirring efficiency and enable the molecules in the extraction solvent to be rapidly and uniformly diffused, a plurality of stirring blades 72 are arranged on one end of the stirring shaft 71, which is far away from the inner wall of the tank body 1, and the plurality of stirring blades 72 are arranged along the circumferential direction of the stirring shaft 71; so set up make (mixing) shaft 71 can stir first draw chamber 111 with the third draws the optional position in the chamber 113, ensures to draw the diffusion that the chemical substance that draws in the solution can be even, avoids it to pile up near the medicinal material, leads to the unable by abundant extraction of chemical substance in the medicinal material.

It should be noted that the installation position of the stirring shaft 71 is not limited as long as the stirring shaft 71 can stir the extraction solvent in the first extraction cavity 111 and the third extraction cavity 113, in an embodiment, the stirring shaft 71 is disposed in the first extraction cavity 111 and connected to the motor 73, and the stirring shaft 71 extends in the up-down direction; in another embodiment, the stirring shaft 71 is disposed in the first extraction chamber 111, and the stirring shaft 71 extends in the left-right direction.

In the extraction process, because the particle diameter of medicinal material is different, the medicinal material that the volume is too little can pass first screen cloth 2 gets into first extraction chamber 111 or pass through second screen cloth 3 gets into in the third extraction chamber 113, consequently can contain some dregs of a decoction in the extraction solution that the extraction finishes, lead to containing impurity in the extraction solution of preparing, in order to avoid this kind of condition to appear, the lower extreme of jar body 1 is equipped with discharge gate 8, the position of discharge gate 8 is equipped with filter screen 81, filter screen 81 detachably installs discharge gate 8. After finishing extracting the chemical substance in the solvent with the medicinal material, the extraction solution that finishes of extraction is followed discharge gate 8 flows, filter screen 81 is located to discharge gate 8, filter screen 81 is arranged in filtering and draws the dregs of a decoction in the solution to improve the purity of the extraction solution of preparing, wherein, filter screen 81 detachably installs discharge gate 8 works as draw the back that finishes of the extraction solution discharge in the chamber 11, will filter screen 81 dismantles, convenient clearance filter screen 81 filterable dregs of a decoction also conveniently washs filter screen 81 simultaneously, avoids the dregs of a decoction to be attached to for a long time on filter screen 81, the jam filter screen 81.

It should be noted that baffle 82 is located to discharge gate 8, baffle 82 movably installs discharge gate 8, works as when extracting the solvent and extracting, baffle 82 shutoff discharge gate 8 avoids extracting the solvent and flows, and after the extraction finishes, baffle 82 is opened discharge gate 8 for the extraction solution of preparing can flow.

In order to ensure the purity of the extracted solution and avoid excessive medicine residues, referring to fig. 1, in an embodiment, the aperture of the filter screen 81 is smaller than the aperture of the first screen 2, and the aperture of the filter screen 81 is smaller than the aperture of the second screen 3. So set up, make filter screen 81 can effectual filtration extract the dregs of a decoction in the extraction solution that finishes, improve the extraction solution's that finishes purity.

Referring to fig. 1, in an embodiment, the first screen 2 is detachably connected to the extraction cavity 11, when a medicinal material needs to be added into the second extraction cavity 112, the first screen 2 close to the first extraction cavity 111 can be detached, and after the medicinal material is added, the first screen 2 is installed on the extraction cavity 11, so that the medicinal material is conveniently added; in addition, after extraction finishes, first screen cloth 2 can dismantle, convenient washing.

Because the installation mode of the second screen 3 and the extraction cavity 11 is the same as the installation mode of the first screen 2 and the extraction cavity 11, the installation mode of the second screen 3 and the extraction cavity 11 is set by referring to the installation mode of the first screen 2 and the extraction cavity 11, and the description is omitted here.

It should be noted that, the upper end of the medicinal material extracting tank 100 is further provided with a feed port 16, in an actual operation process, the first screen 2 is firstly detached, the medicinal material is added into the extracting cavity 11 from the feed port 16, after the medicinal material is added, the first screen 2 is then mounted on the slider 613, at this time, the medicinal material is just in the second extracting cavity 112, then, the extracting solvent is added into the extracting cavity 11 from the feed port 16 until the extracting solvent completely submerges the medicinal material in the second extracting cavity 112, and at this time, the extracting solvent is present in the first extracting cavity 111, the second extracting cavity 112 and the third extracting cavity 113.

Referring to fig. 1 and fig. 2, in the present embodiment, a heating chamber 9 is formed inside an inner wall of the can body 1, and a heating wire 91 is disposed inside the heating chamber 9. The heater strip 91 heats, provides the heat energy environment for the extraction medicinal material for the extraction solvent can fully draw out the chemical in the medicinal material, make full use of raw and other materials when improving extraction efficiency, avoid extravagant.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a high-efficient medicinal material draws jar, its characterized in that, high-efficient medicinal material draws jar includes:

the tank body is internally provided with an extraction cavity;

the first screen and the second screen are detachably arranged in the extraction cavity along the vertical direction so as to divide the extraction cavity into a first extraction cavity, a second extraction cavity and a third extraction cavity which are sequentially arranged along the vertical direction and are mutually communicated; and the number of the first and second groups,

2. The extraction tank as claimed in claim 1, wherein the pressing device further comprises two driving mechanisms, and the two driving mechanisms are respectively connected to the first pressing plate and the second pressing plate in a driving manner.

3. The extraction tank as claimed in claim 2, wherein the driving mechanism comprises a driving cylinder.

4. The extraction pot as claimed in claim 3, wherein the driving cylinder comprises a fixing base and a telescopic rod, the fixing base is disposed outside the pot body, the telescopic rod is telescopically disposed in the fixing base, and an end of the telescopic rod away from the fixing base penetrates through the pot body to the second extraction cavity to be connected with the squeezing device.

5. The high-efficiency medicinal material extracting tank as claimed in claim 1, wherein the tank body has a first side wall and a second side wall corresponding to the first pressing plate and the second pressing plate, respectively, and a third side wall and a fourth side wall connected between the first side wall and the second side wall;

6. The extraction tank as claimed in claim 5, wherein the waste outlet is provided with a door panel for opening or closing the waste outlet.

7. The extraction tank as claimed in claim 1, further comprising two stirring devices, one of which is disposed in the first extraction cavity and the other of which is disposed in the third extraction cavity.

8. The high-efficiency medicinal material extracting tank as claimed in claim 7, wherein the stirring device comprises a stirring shaft disposed in the extracting cavity, the stirring shaft is disposed to extend in an up-down direction, one end of the stirring shaft away from the inner wall of the tank body is provided with a plurality of stirring blades, and the plurality of stirring blades are disposed along a circumferential direction of the stirring shaft;

9. The high-efficiency medicinal material extracting tank as claimed in claim 1, wherein a discharge port is provided at a lower end of the tank body, a filter screen is provided at the discharge port, and the filter screen is detachably mounted at the discharge port.

10. The extraction pot as claimed in claim 9, wherein the aperture of the filter screen is smaller than the aperture of the first screen, and the aperture of the filter screen is smaller than the aperture of the second screen.