Multifunctional extraction tank

By designing a detachable connection structure for the tank, discharge pipe, installation pipe, and filter screen, the problem of impurity blockage during the extraction of traditional Chinese medicine is solved, enabling convenient cleaning and replacement of the filter screen, and improving the filtration effect and sealing performance.

CN224925634UActive Publication Date: 2026-11-03TIANJIN TROPJOIN HEALTH TECH GRP
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522284629.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-29
Publication Date
2026-11-03
Estimated Expiration
2035-10-29

AI Technical Summary

Technical Problem

In the process of extracting traditional Chinese medicine, impurities in existing extraction tanks can easily clog the filter elements, resulting in uneven liquid output and reduced filtration efficiency.

Method used

A multifunctional extraction tank was designed, including a tank body, a discharge pipe, an installation pipe, and a filter screen. The installation pipe and the discharge pipe are detachably connected by the cooperation of a locking plate, a locking block, and a sliding groove, which facilitates the cleaning and replacement of the filter screen. The connection sealing is improved by a sealing pipe and a ring.

Benefits of technology

It facilitates the cleaning and replacement of the filter screen, improves the filtration effect, reduces the possibility of impurities clogging the filter, enhances the sealing of the connection parts, and ensures the smooth discharge of the extract.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224925634U_ABST
    Figure CN224925634U_ABST
Patent Text Reader

Abstract

The application relates to the technical field of traditional Chinese medicine extraction, in particular to a multifunctional extraction tank which comprises a tank body arranged vertically, a discharging pipe arranged vertically at the lower end of the tank body, a mounting pipe sleeved at the lower end of the discharging pipe, a filter screen arranged in the mounting pipe, and a connecting assembly arranged on the outer peripheral wall of the discharging pipe and the upper end surface of the mounting pipe; the discharging pipe is coaxially arranged with the tank body and is in communication with the inside of the tank body; the connecting assembly comprises a thickened portion in a tubular shape fixed to the outer peripheral wall of the discharging pipe and a lock plate fixed to the upper end surface of the mounting pipe vertically; a lock groove is formed in the side wall of the lock plate; the lower end wall of the lock groove is inclined; a plug-in groove matched with the lock plate is formed in the lower end surface of the thickened portion; an inclined sliding groove is formed in the plate surface of the thickened portion; an inclined lock block is slidably arranged in the sliding groove; the sliding groove is in communication with the plug-in groove and is close to the lock groove; and the end portion of the lock block can be located in the lock groove, so that the filter screen can be conveniently cleaned and replaced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of traditional Chinese medicine extraction technology, and in particular to a multifunctional extraction vessel. Background Technology

[0002] Currently, traditional Chinese medicine (TCM) refers to drugs that are collected, processed, and prepared under the guidance of traditional Chinese medicine theory, with explanations of their mechanisms of action and guidance for clinical application. It mainly comes from natural medicines and their processed products, including plant-based medicines, animal-based medicines, mineral-based medicines, and some chemical and biological products. TCM extraction tanks are commonly used leaching and extraction equipment in pharmaceutical and chemical industries, and are particularly suitable for the leaching and extraction of components contained in plant products.

[0003] The existing extraction tank has a tank body, an axially positioned screw propeller or propeller inside the tank body, connected to a rotating shaft outside the tank body. It has a set of inclined continuous countercurrent leaching extraction tanks, with their discharge ports and feed ports connected to each other to form a communicating vessel. Each tank body has a feed port at the top of its bottom and a residual liquid discharge port at the bottom. The tank body has a liquid inlet or exhaust port at the top and a discharge port at the bottom. During the extraction process, it can be completed in a completely sealed and recirculating system composed of condensers, oil-water separators, etc., while recovering organic solvents from the waste residue. After the extraction is completed, when the Chinese medicine liquid needs to be discharged, if the Chinese medicine liquid contains impurities and these impurities are not fully removed, they are prone to accumulate in pipes, valves, and connecting parts, causing blockages and resulting in poor liquid discharge.

[0004] The existing technical solutions mentioned above have the following drawbacks: after prolonged use, impurities in the extract will clog the filter element, reducing its filtration efficiency. Utility Model Content

[0005] This application provides a multi-functional extraction tank for easy cleaning and replacement of the filter elements.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0007] A multifunctional extraction tank includes a vertically arranged tank body, a vertically arranged discharge pipe at the lower end of the tank body, an installation pipe sleeved at the lower end of the discharge pipe, a filter screen disposed inside the installation pipe, and a connecting assembly disposed on the outer peripheral wall of the discharge pipe and the upper end face of the installation pipe. The discharge pipe is coaxially arranged with the tank body and communicates with the interior of the tank body. The connecting assembly includes a tubular thickened part fixed to the outer peripheral wall of the discharge pipe and a vertical locking plate fixed to the upper end face of the installation pipe. The side wall of the locking plate has a locking groove, and the lower end wall of the locking groove is inclined. The lower end face of the thickened part has an insertion groove adapted to the locking plate. An inclined sliding groove is formed on the surface of the thickened part. An inclined locking block is slidably disposed in the sliding groove. The sliding groove communicates with the insertion groove and is close to the locking groove. The end of the locking block can be located in the locking groove.

[0008] By adopting the above technical solution, and by setting up a tank, discharge pipe, installation pipe, filter screen, and connecting components, the tank can serve as the main space for the extraction of traditional Chinese medicine. The extract in the tank is discharged through the discharge pipe, and the filter screen inside the installation pipe filters impurities from the discharged extract. At the same time, the installation pipe and discharge pipe can be detachably connected by the locking plate inserting into the insertion groove and the locking block sliding in the sliding groove and locking into the locking groove. This improves the ease of assembly of the installation pipe and discharge pipe, and makes it easier to clean and replace the filter screen that is prone to clogging after long-term use.

[0009] Optionally, the upper end of the locking plate near the corner of the sliding groove is machined into a bevel.

[0010] By adopting the above technical solution, by processing the corners of the upper surface of the locking plate into bevels, the locking plate can be smoothly inserted into the insertion groove of the lower surface of the thickened part during the process of inserting the locking plate into the insertion groove, avoiding the connection efficiency between the installation pipe and the discharge pipe due to the corners getting stuck, and at the same time guiding the locking block to be inserted into the locking groove.

[0011] Optionally, a driving component is fixedly connected to the surface of the locking block away from the discharge pipe, and an annular sliding component is slidably provided on the outer peripheral wall of the thickened part. A driving groove is formed on the surface of the inner peripheral wall of the sliding component, and the driving component is adapted to the driving groove and can slide in the driving groove.

[0012] By adopting the above technical solution, and by setting up a driving component, a sliding component, and opening a driving groove, the driving component can be moved by moving the sliding component during the disassembly of the installation tube, causing the locking block to slide along the sliding groove, thus separating the locking block from the locking groove. The locking plate can be unlocked by the sliding component, making the disassembly of the installation tube easier to control and facilitating the cleaning and replacement of the filter screen.

[0013] Optionally, a limiting groove is formed on the outer peripheral wall of the thickened part, and a limiting member adapted to the limiting groove is provided at a corresponding position on the inner peripheral wall of the sliding member, and the limiting member slides in the limiting groove.

[0014] By adopting the above technical solution and setting limiting components and limiting grooves, the sliding component can move along the axis of the discharge pipe, reducing the possibility of its rotation and improving the efficiency of disassembling and installing the pipe.

[0015] Optionally, the bottom of the sliding groove is provided with a T-shaped limiting groove, the width of the limiting groove opening is smaller than the width of the groove bottom, and a sliding block adapted to the limiting groove is provided on the surface of the locking block away from the sliding member, and the sliding block is slidably disposed in the limiting groove.

[0016] By adopting the above technical solution, and by setting a sliding block and a limiting groove, the sliding block and the limiting groove restrict the sliding trajectory of the lock block, so that it slides along the sliding groove, reducing the possibility of the lock block getting stuck in the lock groove, and facilitating the locking and separation of the lock plate.

[0017] Optionally, a sealing tube is slidably disposed inside the mounting tube, and a first annular member is coaxially fixed to the inner peripheral wall of the mounting tube. The outer peripheral wall of the sealing tube is adapted to the inner peripheral wall of the first annular member and slides against each other. A second annular member is coaxially fixed to the upper end of the outer peripheral wall of the sealing tube. The outer peripheral wall of the second annular member slides against the inner peripheral wall of the mounting tube. The surface of the second annular member facing away from the first annular member is flush with the upper end face of the sealing tube, and the surface of the second annular member and the upper end face of the sealing tube can abut against the lower end face of the discharge tube.

[0018] By adopting the above technical solution, and by setting a sealing tube, a first ring, and a second ring, the sealing performance of the connection between the installation tube and the discharge tube can be enhanced when the installation tube is connected to the discharge tube, reducing the leakage of extract from the connection gap during discharge. The inner circumferential wall of the first ring slides against the outer circumferential wall of the sealing tube, and the outer circumferential wall of the second ring slides against the inner circumferential wall of the installation tube, which can limit the movement trajectory of the sealing tube and reduce the possibility of its end displacement.

[0019] Optionally, multiple springs are provided between the first ring member and the second ring member, with the two ends of the springs fixedly connected to the surfaces of the first ring member and the second ring member respectively.

[0020] By adopting the above technical solution and setting a spring, the elastic force of the spring can be used to generate a pushing force on the second ring in the direction of the discharge pipe, so that the surface of the second ring away from the first ring and the upper end face of the sealing pipe always abut against the lower end face of the discharge pipe. Even if slight wear occurs after long-term use, the spring force can maintain the sealing state, further improving the sealing reliability of the connection between the installation pipe and the discharge pipe.

[0021] Optionally, the inner peripheral wall of the sealing tube is coaxially provided with an annular limiting plate, the filter screen is adapted to the inner peripheral wall of the sealing tube, and the surface of the filter screen is in contact with the surface of the limiting plate. Vertical fixing rods are provided on both sides of the lower end of the inner peripheral wall of the discharge tube, the lower end of the fixing rod protrudes from the lower end face of the discharge tube, and the lower end face of the fixing rod can abut against the edge of the filter screen surface.

[0022] By adopting the above technical solution and setting a fixing rod, the possibility of the filter screen tilting during use is reduced.

[0023] In summary, this application has the following technical effects:

[0024] 1. By setting up a tank, discharge pipe, installation pipe, filter screen and connecting components, the tank can be used as the main space for the leaching and extraction of traditional Chinese medicine. The extract in the tank is discharged through the discharge pipe, and the filter screen inside the installation pipe is used to filter impurities from the discharged extract. At the same time, the installation pipe and the discharge pipe can be detachably connected by the locking plate inserting into the insertion groove and the locking block sliding in the sliding groove and locking into the locking groove, which improves the ease of assembly of the installation pipe and the discharge pipe, and makes it easier to clean and replace the filter screen that is prone to clogging after long-term use.

[0025] 2. By setting up a driving component, a sliding component, and opening a driving groove, the driving component can be moved by the sliding component during the disassembly of the installation tube, causing the locking block to slide along the sliding groove, thus separating the locking block from the locking groove. The locking plate can be unlocked by the sliding component, making the disassembly of the installation tube easier to control and facilitating the cleaning and replacement of the filter screen.

[0026] 3. By incorporating a sealing tube, a first ring, and a second ring, the sealing performance at the connection between the installation tube and the discharge tube is enhanced, reducing leakage of the extract from the connection gap during discharge. The inner circumferential wall of the first ring slides against the outer circumferential wall of the sealing tube, and the outer circumferential wall of the second ring slides against the inner circumferential wall of the installation tube, thus limiting the movement trajectory of the sealing tube and reducing the possibility of end displacement. Attached Figure Description

[0027] Figure 1 This is a structural diagram of the object of this application;

[0028] Figure 2 This is a structural diagram of this application after it has been opened.

[0029] Explanation of reference numerals in the attached drawings: 1. Extraction component; 11. Tank body; 12. Discharge pipe; 121. Fixing rod; 13. Installation pipe; 131. First ring component; 14. Sealing pipe; 141. Second ring component; 15. Limiting plate; 16. Filter screen; 2. Connecting component; 21. Thickened part; 211. Insertion groove; 212. Sliding groove; 213. Limiting groove; 214. Limiting sliding groove; 22. Locking plate; 221. Shrinkage section; 222. Locking groove; 23. Locking block; 24. Driving component; 25. Sliding component; 251. Driving groove; 252. Limiting component. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application discloses a multifunctional extraction vessel, as shown in the embodiments below. Figure 1The extraction tank includes an extraction component 1 and a connecting component 2 located at the lower end of the extraction component 1. The extraction component 1 can extract and recover the components contained in the plant product by leaching, and filter the extract when it is discharged. The connecting component 2 can quickly install the filter structure on the extraction component 1, which facilitates subsequent cleaning and replacement of the filter element, reduces the possibility of the filter element's filtration effect decreasing after long-term use, and causes impurities in the extract to clog the pipes.

[0032] Combination Figure 1 and Figure 2 The extraction component 1 includes a vertically arranged tank 11, a discharge pipe 12 vertically arranged at the lower end of the tank 11, an installation pipe 13 sleeved at the lower end of the discharge pipe 12, and a sealing pipe 14 and a filter screen 16 slidably arranged inside the installation pipe 13. The tank 11 is cylindrical, and the discharge pipe 12 is coaxially arranged with the tank 11 and communicates with the interior of the tank 11. The installation pipe 13 is a circular pipe, and the inner circumferential wall of the installation pipe 13 is adapted to the outer circumferential wall of the discharge pipe 12. The installation pipe 13 is detachably sleeved at the lower end of the discharge pipe 12. A first ring 131 is coaxially arranged in the middle of the inner circumferential wall of the installation pipe 13. The outer circumferential wall of the first ring 131 is fixedly connected to the inner circumferential wall of the installation pipe 13, and the diameter of the inner circumferential wall of the first ring 131 is larger than the diameter of the inner circumferential wall of the discharge pipe 12.

[0033] Combination Figure 1 and Figure 2 The outer peripheral wall of the sealing tube 14 is adapted to the inner peripheral wall of the first ring 131. The sealing tube 14 is slidably disposed within the first ring 131, and the outer peripheral wall of the sealing tube 14 is slidably fitted with the inner peripheral wall of the first ring 131. The sealing tube 14 is coaxially disposed with the mounting tube 13, and the diameter of the inner peripheral wall of the sealing tube 14 is the same as the diameter of the inner peripheral wall of the discharge tube 12. A second ring 141 is coaxially disposed at the upper end of the outer peripheral wall of the sealing tube 14. The inner peripheral wall of the second ring 141 is fixedly connected to the outer peripheral wall of the sealing tube 14, and the outer peripheral wall of the second ring 141 is slidably fitted with the inner peripheral wall of the mounting tube 13. The surface of the second ring 141 facing away from the first ring 131 can abut and seal with the lower end of the discharge tube 12, improving the sealing performance of the connection between the mounting tube 13 and the discharge tube 12.

[0034] Combination Figure 1 and Figure 2A spring is provided between the first ring 131 and the second ring 141. The two ends of the spring are fixedly connected to the opposing surfaces of the first ring 131 and the second ring 141, respectively. When the mounting tube 13 is installed at the lower end of the discharge tube 12, the spring ensures that the surface of the second ring 141 always abuts against the lower end face of the discharge tube 12, guaranteeing a seal. A ring-shaped limiting plate 15 is coaxially arranged in the middle of the inner circumferential wall of the sealing tube 14. The outer wall of the limiting plate 15 is fixedly connected to the inner circumferential wall of the sealing tube 14. A circular filter screen 16 is provided on the side of the limiting plate 15 near the discharge tube 12. The filter screen 16 is adapted to the sealing tube 14, and its surface is in contact with the surface of the limiting plate 15. The filter screen 16 filters the treated extract flowing out of the discharge tube 12. Fixing rods 121 are provided on both sides of the lower end of the inner peripheral wall of the discharge pipe 12. The fixing rods 121 are square rods, and the length direction of the fixing rods 121 is perpendicular to the axis of the discharge pipe 12. The lower end of the fixing rods 121 protrudes from the lower end face of the discharge pipe 12. When the upper end face of the sealing pipe 14 and the surface of the second ring 141 abut against the lower end face of the discharge pipe 12, the lower end face of the fixing rods 121 abuts against the edge of the filter screen 16, reducing the possibility of the filter screen 16 tilting during use.

[0035] Combination Figure 1 and Figure 2 The connecting assembly 2 includes a thickened portion 21 that forms a tubular shape and is part of the outer peripheral wall of the discharge pipe 12, a locking plate 22 disposed on the upper end face of the mounting pipe 13, a locking block 23 slidably disposed on the thickened portion 21 away from the surface of the discharge pipe 12, and a sliding member 25 slidably sleeved on the thickened portion 21. The thickened portion 21 is coaxially disposed with the discharge pipe 12, the inner peripheral wall of the thickened portion 21 is fixedly connected to the outer peripheral wall of the discharge pipe 12, and the thickened portion 21 is spaced apart from the lower end face of the discharge pipe 12.

[0036] Combination Figure 1 and Figure 2 The locking plate 22 is strip-shaped and curved. The locking plate 22 is fixed to the upper end face of the mounting tube 13. There are two locking plates 22, which are arranged opposite each other. The length direction of the locking plate 22 is parallel to the axis of the mounting tube 13. The locking plate 22 is machined to form a contraction section 221 at the upper part. One side wall of the contraction section 221 is flush with the lower side wall of the locking plate 22. The other side wall of the contraction section 221 forms a step with the lower side wall of the locking plate 22. A rectangular locking groove 222 is opened inward at the step of the locking plate 22. The length direction of the locking groove 222 is parallel to the length direction of the locking plate 22, and the bottom of the locking groove 222 is parallel to the side wall of the locking plate 22. The end wall of the locking groove 222 away from the contraction section 221 is machined into an inclined surface to make the locking groove 222 flared. The flared opening of the locking groove 222 faces away from the locking plate 22.

[0037] Combination Figure 1 and Figure 2The upper end of the contraction section 221, at the corner on the same side as the locking groove 222, is machined into a bevel. The lower end of the thickened section 21 has a corresponding inwardly formed insertion groove 211 adapted to the locking plate 22. The insertion groove 211 communicates with the outer peripheral wall of the thickened section 21. A strip-shaped sliding groove 212 is formed on one side of the locking groove 222 on the outer peripheral wall of the thickened section 21. The sliding groove 212 is inclined and extends from near the insertion groove 211 to away from the insertion groove 211. The locking plate 22 is inserted into the insertion groove 211. The upper corner of the sliding groove 212 near the locking groove 222 is connected to the locking groove 222. The inclined end wall of the locking groove 222 is flush with the end wall of the sliding groove 212. A locking block 23 is slidably arranged in the sliding groove 212. The length direction of the locking block 23 is perpendicular to the length direction of the sliding groove 212. The upper end of the locking block 23 can be located in the locking groove 222, locking the locking plate 22 in the insertion groove 211.

[0038] Combination Figure 1 and Figure 2 The bottom of the sliding groove 212 is provided with a T-shaped limiting groove 214. The width of the opening of the limiting groove 214 is smaller than the width of the bottom. The surface of the locking block 23 that is in contact with the bottom of the sliding groove 212 is provided with a sliding block that is adapted to the limiting groove 214. The sliding block is slidably disposed in the limiting groove 214. The sliding block and the limiting groove 214 restrict the sliding trajectory of the locking block 23, so that it slides along the sliding groove 212.

[0039] Combination Figure 1 and Figure 2 A driving member 24 is provided on the surface of the locking block 23 facing away from the discharge pipe 12, and the length direction of the driving member 24 is perpendicular to the axis of the discharge pipe 12. Limiting grooves 213 are provided at intervals on the outer peripheral wall of the thickened part 21, the sliding groove 212, and the locking groove 222, and the length direction of the limiting grooves 213 is parallel to the axis of the thickened part 21. A ring-shaped sliding member 25 is slidably disposed on the outer peripheral wall of the thickened part 21, and the sliding member 25 is coaxially disposed with the discharge pipe 12. A limiting member 252 is provided at a corresponding position on the inner peripheral wall of the sliding member 25, and the limiting member 252 is adapted to and slidably disposed within the limiting groove 213.

[0040] Combination Figure 1 and Figure 2A spring is installed in the limiting groove 213, located on the upper part of the sliding member 25. One end of the spring is fixedly connected to the end wall of the limiting groove 213, and the other end is fixedly connected to the end face of the limiting member 252. The inner peripheral wall of the sliding member 25 slides against the outer peripheral wall of the thickened part 21. A driving groove 251 is provided on the inner peripheral wall of the sliding member 25. The driving groove 251 is coaxially arranged with the sliding member 25, and the driving member 24 is adapted to the driving groove 251 and slidably arranged in the driving groove 251. When the mounting tube 13 is installed, the locking plate 22 is inserted into the insertion groove 211. When the upper end face of the locking plate 22 is located in the middle of the insertion groove 211, the surface of the second ring member 141 and the upper end face of the sealing tube 14 abut against the lower end face of the discharge tube 12. When the locking block 23 is inserted into the locking groove 222, the mounting tube 13 is subjected to gravity, and the upper side wall of the locking groove 222 abuts against the corner of the locking block 23. When unlocking, the sliding member 25 moves upward. When the edge of the upper side wall of the locking groove 222 is flush with the side wall of the sliding groove 212, the locking block 23 moves out of the locking groove 222 to unlock the locking plate 22. The mounting tube 13 and the sealing tube 14 can then be removed to facilitate cleaning and replacement of the filter screen 16.

[0041] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A multifunctional extraction vessel, characterized in that: It includes a vertically arranged tank (11), a vertically arranged discharge pipe (12) at the lower end of the tank (11), an installation pipe (13) sleeved at the lower end of the discharge pipe (12), a filter screen (16) arranged inside the installation pipe (13), and a connecting component (2) arranged on the outer peripheral wall of the discharge pipe (12) and the upper end face of the installation pipe (13). The discharge pipe (12) is coaxially arranged with the tank (11) and communicates with the inside of the tank (11). The connecting component (2) includes a thickened part (21) in the shape of a tube fixed to the outer peripheral wall of the discharge pipe (12) and a locking plate (22) fixed vertically to the upper end face of the mounting pipe (13). The side wall of the locking plate (22) is provided with a locking groove (222). The lower end wall of the locking groove (222) is inclined. The lower end face of the thickened part (21) is provided with a plug-in groove (211) adapted to the locking plate (22). The thickened part (21) is provided with an inclined sliding groove (212). An inclined locking block (23) is slidably arranged in the sliding groove (212). The sliding groove (212) is connected to the plug-in groove (211) and close to the locking groove (222). The end of the locking block (23) can be located in the locking groove (222).

2. The multifunctional extraction vessel according to claim 1, characterized in that: The upper end of the locking plate (22) is machined into a bevel near the corner of the sliding groove (212).

3. The multifunctional extraction vessel according to claim 1, characterized in that: The locking block (23) is fixed to the surface opposite to the discharge pipe (12) with a driving member (24). The thickened part (21) has a sliding member (25) in the shape of an annular shape slidably disposed on the outer peripheral wall. A driving groove (251) is opened on the surface of the inner peripheral wall of the sliding member (25). The driving member (24) is adapted to the driving groove (251) and can slide in the driving groove (251).

4. A multifunctional extraction vessel according to claim 3, characterized in that: The thickened part (21) has a limiting groove (213) on its outer peripheral wall, and the sliding part (25) has a limiting member (252) at a corresponding position on its inner peripheral wall that is adapted to the limiting groove (213). The limiting member (252) slides in the limiting groove (213).

5. A multifunctional extraction vessel according to claim 4, characterized in that: The bottom of the sliding groove (212) is provided with a T-shaped limiting groove (214). The width of the opening of the limiting groove (214) is smaller than the width of the bottom. The surface of the locking block (23) away from the sliding member (25) is provided with a sliding block that is adapted to the limiting groove (214). The sliding block is slidably disposed in the limiting groove (214).

6. A multifunctional extraction vessel according to claim 1, characterized in that: A sealing tube (14) is slidably disposed inside the mounting tube (13). A first ring (131) in the shape of an annulus is coaxially fixed to the inner peripheral wall of the mounting tube (13). The outer peripheral wall of the sealing tube (14) is adapted to the inner peripheral wall of the first ring (131) and slides against each other. A second ring (141) in the shape of an annulus is coaxially fixed to the upper end of the outer peripheral wall of the sealing tube (14). The outer peripheral wall of the second ring (141) slides against the inner peripheral wall of the mounting tube (13). The surface of the second ring (141) facing away from the first ring (131) is flush with the upper end surface of the sealing tube (14), and the surface of the second ring (141) and the upper end surface of the sealing tube (14) can abut against the lower end surface of the discharge tube (12).

7. A multifunctional extraction vessel according to claim 6, characterized in that: Multiple springs are provided between the first ring member (131) and the second ring member (141), with the two ends of the springs fixed to the surfaces of the first ring member (131) and the second ring member (141) respectively.

8. A multifunctional extraction vessel according to claim 7, characterized in that: The inner circumferential wall of the sealing tube (14) is coaxially provided with a ring-shaped limiting plate (15). The filter screen (16) is adapted to the inner circumferential wall of the sealing tube (14), and the surface of the filter screen (16) is in contact with the surface of the limiting plate (15). Vertical fixing rods (121) are provided on both sides of the lower end of the inner circumferential wall of the discharge tube (12). The lower end of the fixing rod (121) protrudes from the lower end face of the discharge tube (12), and the lower end face of the fixing rod (121) can abut against the edge of the surface of the filter screen (16).