Solid-liquid separation device for medicinal plant extraction
By combining a filter cartridge and an extrusion assembly with a centrifugal solid-liquid separation device, the problems of low extraction rate and long extraction time in traditional devices are solved, achieving efficient extraction of medicinal plant components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN PUHUA CHINESE MEDICINE TECH CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional solid-liquid separation devices have low extraction rates and are time-consuming when processing tough medicinal plants, and are prone to causing loss of active ingredients.
The system employs a combination of filter cartridges and extrusion components within the chamber, along with centrifugation, to achieve solid-liquid separation. A fine filter hood is used for double filtration to ensure the full dissolution and extraction of active ingredients.
It improves the efficiency and extraction rate of solid-liquid separation in the extraction of medicinal plants, shortens the separation time, and reduces the loss of effective components.
Smart Images

Figure CN224158933U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plant extraction, specifically a solid-liquid separation device for extracting medicinal plants. Background Technology
[0002] With the modernization of the traditional Chinese medicine industry and the increasing demand for natural medicines, solid-liquid separation is a key step in the extraction of effective components in the field of medicinal plant processing. Its separation efficiency and purity directly affect the quality and yield of medicinal extracts.
[0003] Traditional solid-liquid separation devices often involve manually squeezing or crushing the plants, followed by filtration or settling to separate the components from medicinal plants. However, when processing tough plant materials, relying solely on filtration cannot effectively dissolve the active ingredients within the cells, resulting in a low extraction rate. Furthermore, settling is time-consuming and can easily cause some active ingredients to be adsorbed into the precipitate, leading to resource waste. Therefore, it is necessary to design a solid-liquid separation device for medicinal plant extraction to solve these problems. Utility Model Content
[0004] The purpose of this invention is to provide a solid-liquid separation device for extracting medicinal plants, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a solid-liquid separation device for extracting medicinal plants, comprising a box body, an installation box installed in the inner cavity of the box body, a motor installed inside the installation box, a filter cartridge fixedly installed at the output end of the motor, and a squeezing component for squeezing the plants inside the filter cartridge installed on the outer side of the box body;
[0006] Two top plates are installed on the bottom surface of the filter cartridge. A fine filter cover is provided on the top surface of the top plate. Two insert plates are installed on the bottom surface of the fine filter cover. The two insert plates movably pass through the two top plates respectively. Insert holes are opened on the surface of the insert plates. A limiting component that passes through the insert hole is installed on one side of the top plate.
[0007] Preferably, the extrusion assembly includes a mounting plate, which is fixedly installed on the outside of the housing. A cylinder is mounted on the top surface of the mounting plate, a connecting rod is fixedly installed on the output end of the cylinder, a pressure plate is fixedly installed on one end of the connecting rod, and a rotating pressure sleeve is rotatably installed on the outside of the pressure plate.
[0008] Preferably, the outer diameter of the rotating pressure sleeve matches the inner diameter of the filter cartridge.
[0009] Preferably, the limiting component includes a rod that movably penetrates the top plate, a stop block is fixedly installed at one end of the rod, a spring is fixedly connected between the stop block and the top plate, and one end of the rod passes through the inside of the insertion hole.
[0010] Preferably, both the insert rod and the socket have circular cross-sections, and the outer diameter of the insert rod matches the inner diameter of the socket.
[0011] Preferably, the side wall of the filter cartridge is hollowed out.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This solid-liquid separation device for medicinal plant extraction involves placing the medicinal plant into the filter cartridge, controlling the cylinder to contract, which drives the connecting rod, pressure plate, and rotating pressure sleeve to move downwards. The pressure plate and rotating pressure sleeve press down and squeeze the plant inside the filter cartridge, causing the plant juice to flow out. The juice passes through the outside of the filter cartridge and enters the fine filter hood, where it performs fine filtration to remove fine residue. By turning on the motor switch, the filter cartridge and the plant inside it rotate, and the solid-liquid separation speed is ensured through centrifugation.
[0014] 2. In this solid-liquid separation device for medicinal plant extraction, during centrifugation, the plant approaches the inner side wall of the filter cartridge. After the motor is stopped, the pressure plate and rotating sleeve are controlled to squeeze the plant, so that the plant is pressed to the bottom of the filter cartridge. The device works by first squeezing, then centrifuging, then squeezing again and circulating. During this process, the state of the plant changes continuously, which can fully squeeze different parts of the plant, thereby improving the extraction rate. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0017] Figure 3 This is a schematic diagram of the bottom structure of this utility model;
[0018] Figure 4 This is an enlarged structural schematic diagram of the present invention.
[0019] In the diagram: 1. Housing; 2. Mounting box; 3. Motor; 4. Filter cartridge; 5. Mounting plate; 6. Cylinder; 7. Connecting rod; 8. Pressure plate; 9. Rotating pressure sleeve; 10. Top plate; 11. Fine filter cover; 12. Insert plate; 13. Insertion hole; 14. Insert rod; 15. Stop block; 16. Spring. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1
[0022] Please refer to Figure 1-4 As shown, this utility model provides a solid-liquid separation device for extracting medicinal plants, including a box 1, an installation box 2 installed in the inner cavity of the box 1, a motor 3 installed inside the installation box 2, a filter cartridge 4 fixedly installed at the output end of the motor 3, and a squeezing component for squeezing the plants inside the filter cartridge 4 installed on the outside of the box 1.
[0023] Two top plates 10 are installed on the bottom surface of the filter cartridge 4. A fine filter cover 11 is provided on the top surface of the top plate 10. Two insert plates 12 are installed on the bottom surface of the fine filter cover 11. The two insert plates 12 are movable through the two top plates 10 respectively. Insert holes 13 are opened on the surface of the insert plates 12. A limiting component that passes through the insert hole 13 is installed on one side of the top plate 10.
[0024] Specifically, the medicinal plants are squeezed by the extrusion assembly and the filter cartridge 4, and then centrifuged to separate the solid and liquid. The double filtration of the fine filter cover 11 and the filter cartridge 4 prevents the residue from flowing into the box 1 along with the juice.
[0025] The extrusion assembly includes a mounting plate 5, which is fixedly installed on the outside of the housing 1. A cylinder 6 is installed on the top surface of the mounting plate 5. A connecting rod 7 is fixedly installed at the output end of the cylinder 6. A pressure plate 8 is fixedly installed at one end of the connecting rod 7. A rotating pressure sleeve 9 is rotatably installed on the outside of the pressure plate 8. The outer diameter of the rotating pressure sleeve 9 matches the inner diameter of the filter cartridge 4. The pressure plate 8 and the rotating pressure sleeve 9 work together to extrude the plants inside the filter cartridge 4. The rotating pressure sleeve 9 can rotate relative to the pressure plate 8. When the filter cartridge 4 rotates, the inner wall of the filter cartridge 4 rubs against the rotating pressure sleeve 9, and the rotating pressure sleeve 9 will rotate with the filter cartridge 4, thereby reducing the wear between the rotating pressure sleeve 9 and the filter cartridge 4.
[0026] The limiting component includes a rod 14 that extends through the top plate 10. A stop 15 is fixedly installed at one end of the rod 14. A spring 16 is fixedly connected between the stop 15 and the top plate 10. One end of the rod 14 passes through the insertion hole 13. Both the rod 14 and the insertion hole 13 have circular cross-sections. The outer diameter of the rod 14 matches the inner diameter of the insertion hole 13. During use, the spring 16 applies a spring force to the stop 15, thereby pulling the stop 15 closer to the top plate 10, so that the rod 14 is inserted into the insertion hole 13. During centrifugation, due to the large stiffness coefficient of the spring 16, the stop 15 can be prevented from moving outward during centrifugation. When cleaning is required, the stop 15 is pulled to disengage the rod 14 from the insertion hole 13. At this time, the fine filter cover 11 and the insert plate 12 can be moved upward, so that the insert plate 12 disengages from the top plate 10, thereby separating the fine filter cover 11 from the filter cartridge 4.
[0027] Among them: the side wall of the filter cylinder 4 is hollowed out, and the bottom of the filter cylinder 4 cannot be used for plant juice to pass through. The filter cylinder 4 performs coarse filtration of the juice, and the juice that passes through the side wall of the filter cylinder 4 can enter the fine filter cover 11 to remove fine residue.
[0028] Working principle: This utility model is a solid-liquid separation device for extracting medicinal plants. When in use, the medicinal plant is put into the filter cylinder 4, the cylinder 6 is controlled to contract, which drives the connecting rod 7, the pressure plate 8 and the rotating pressure sleeve 9 to move downward. The pressure plate 8 and the rotating pressure sleeve 9 press down and squeeze the plant in the filter cylinder 4, causing the juice inside the plant to flow out. The juice passes through the outside of the filter cylinder 4 and enters the fine filter cover 11. The fine filter cover 11 performs fine filtration to remove the fine residue. By turning on the switch of the motor 3, the filter cylinder 4 and the plant in the filter cylinder 4 are driven to rotate. The solid-liquid separation speed is ensured by centrifugation.
[0029] It is worth noting that during the centrifugation process, the plant approaches the inner side wall of the filter cartridge 4. After the motor 3 is stopped, the pressure plate 8 and the rotating pressure sleeve 9 are controlled to squeeze the plant, so that the plant is pressed to the bottom of the filter cartridge 4. The device works by first squeezing, then centrifuging, then squeezing again and cycling. During this process, the state of the plant changes continuously, which can fully squeeze different positions of the plant, thereby improving the extraction rate.
[0030] After extraction, control the pressure plate 8 and rotating the pressure sleeve 9 to rise and disengage from the filter cylinder 4. Then, by pulling the stop block 15, the insertion rod 14 is disengaged from the insertion hole 13. At this time, the fine filter cover 11 and the insertion plate 12 can be moved upward, so that the insertion plate 12 is disengaged from the top plate 10, thereby separating the fine filter cover 11 from the filter cylinder 4, making it easier to clean the filter cylinder 4 and the fine filter cover 11 respectively.
[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A solid-liquid separation device for extracting medicinal plants, comprising a housing (1), characterized in that: The inner cavity of the box (1) is equipped with an installation box (2), the installation box (2) is equipped with a motor (3), the output end of the motor (3) is fixedly equipped with a filter cartridge (4), and the outer side of the box (1) is equipped with a squeezing component for squeezing the plants inside the filter cartridge (4). The bottom surface of the filter cartridge (4) is equipped with two top plates (10). The top surface of the top plate (10) is provided with a fine filter cover (11). The bottom surface of the fine filter cover (11) is equipped with two insert plates (12). The two insert plates (12) respectively movably pass through the two top plates (10). The surface of the insert plate (12) is provided with a socket (13). A limiting component that passes through the socket (13) is installed on one side of the top plate (10).
2. The solid-liquid separation device for extracting medicinal plants according to claim 1, characterized in that: The extrusion assembly includes a mounting plate (5), which is fixedly installed on the outside of the housing (1). A cylinder (6) is installed on the top surface of the mounting plate (5). A connecting rod (7) is fixedly installed at the output end of the cylinder (6). A pressure plate (8) is fixedly installed at one end of the connecting rod (7). A rotating pressure sleeve (9) is rotatably installed on the outside of the pressure plate (8).
3. The solid-liquid separation device for extracting medicinal plants according to claim 2, characterized in that: The outer diameter of the rotating pressure sleeve (9) matches the inner diameter of the filter cylinder (4).
4. The solid-liquid separation device for extracting medicinal plants according to claim 1, characterized in that: The limiting component includes a rod (14) that moves through the top plate (10). A stop (15) is fixedly installed at one end of the rod (14). A spring (16) is fixedly connected between the stop (15) and the top plate (10). One end of the rod (14) passes through the inside of the insertion hole (13).
5. A solid-liquid separation device for extracting medicinal plants according to claim 4, characterized in that: Both the insert rod (14) and the socket (13) have circular cross-sections, and the outer diameter of the insert rod (14) matches the inner diameter of the socket (13).
6. The solid-liquid separation device for extracting medicinal plants according to claim 1, characterized in that: The filter cartridge (4) has a hollowed-out side wall.