A membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves

Abstract

The application relates to a membrane separation ultrasonic auxiliary device for extracting active components from ginkgo leaves. The device comprises an ultrasonic extraction kettle, a filter kettle arranged at the lower end of the ultrasonic extraction kettle and an electromagnetic discharging valve installed between the ultrasonic extraction kettle and the filter kettle. The ultrasonic extraction kettle is used for receiving ginkgo leaf solution and performing ultrasonic auxiliary extraction treatment, and the kettle body is provided with an upper ring, a lower ring and a plurality of groups of connecting rods connecting the upper ring and the lower ring. Each group of connecting rods is slidably sleeved with a sliding seat, and the sliding seat is provided with ultrasonic equipment. The filter kettle is used for receiving the active component solution after ultrasonic auxiliary extraction in the ultrasonic extraction kettle, and the kettle body is provided with a second ring table, a disc located at the center of the second ring table and a filter cloth bag connecting the second ring table and the disc. Compared with the prior art, the ginkgo flavonoid terpene lactone can be efficiently extracted, and the continuous coarse filtration is facilitated, and the extraction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of compound extraction technology, and in particular to a membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves. Background Technology

[0002] Ginkgo flavonoids and terpene lactones are the core active ingredients in ginkgo leaves, possessing significant antioxidant, microcirculation-improving, and neuroprotective effects. Currently, the industrial extraction and purification of ginkgo active ingredients primarily employs traditional methods such as organic solvent extraction and column chromatography. However, these processes have significant shortcomings: firstly, the use of large amounts of organic solvents leads to significant solvent residue problems, affecting product safety and purity; secondly, the operation steps are cumbersome and time-consuming, and high-temperature treatment easily causes degradation of heat-sensitive components (such as terpene lactones), reducing the yield and bioactivity of active ingredients. Furthermore, traditional methods are mostly intermittent operations, making it difficult to meet the demands of modern green pharmaceutical manufacturing for continuous and large-scale production.

[0003] To overcome the aforementioned shortcomings, ultrasound-assisted extraction (UAE) and membrane separation purification technologies have attracted attention in recent years. UAE utilizes cavitation and mechanical vibration to effectively disrupt plant cell walls, accelerate solvent penetration and dissolution of target components, significantly shortening extraction time and improving extraction efficiency. Membrane separation technology, based on differences in molecular size and hydrophilicity / hydrophobicity, achieves efficient fractional purification of flavonoids and terpene lactones in the extract without the need for organic solvents or chromatographic packing materials. The combined green and efficient process can replace the traditional organic extraction-column chromatography route, significantly reducing the use and residue of organic solvents and improving the yield and purity of target components. Furthermore, this combined process only requires operation at room temperature or low temperature, effectively protecting the natural structure of active ingredients. More importantly, the ultrasound-assisted extraction and membrane separation process is easy to integrate and operate continuously, possessing excellent industrial scale-up potential, providing an ideal technical solution for the green, efficient, and large-scale extraction and purification of active ingredients from Ginkgo biloba leaves.

[0004] However, existing equipment often struggles to perform efficient ultrasonic extraction on pulverized ginkgo leaves, and it lacks the flexibility for coarse filtration after extraction, limiting subsequent membrane separation and purification steps and significantly reducing processing efficiency. Therefore, there is an urgent need to develop novel ultrasonic-assisted membrane separation devices for extracting active ingredients such as ginkgo flavonoids and terpene lactones from ginkgo leaves. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects of the prior art by providing a membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves. This device is used to perform efficient ultrasonic extraction and continuous coarse filtration on pulverized ginkgo leaves, thereby effectively improving processing efficiency.

[0006] The objective of this invention can be achieved through the following technical solutions: The present invention provides a membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves. The device includes an ultrasonic extraction vessel, a filter vessel located at the lower end of the ultrasonic extraction vessel, and an electromagnetic feeding valve installed between the ultrasonic extraction vessel and the filter vessel. The ultrasonic extraction vessel is used to receive ginkgo leaf solution and perform ultrasonic-assisted extraction treatment on it. The vessel body is provided with an upper ring, a lower ring, and several sets of guide rods connecting the upper ring and the lower ring. Each set of guide rods is slidably fitted with a sliding seat, and each sliding seat is equipped with an ultrasonic device. The upper end of the upper ring is provided with a first ring platform, and a first toothed ring is rotatably fitted on the outer side of the first ring platform. A linkage component for driving the ultrasonic device to slide up and down along the guide rod is provided between the upper ring and the lower ring, and a drive component for driving the upper ring and the lower ring to rotate is also installed on the ultrasonic extraction vessel. The filter vessel is used to receive the active component solution after ultrasonic-assisted extraction in the ultrasonic extraction vessel. The vessel body is provided with a second ring platform, a disk located at the center of the second ring platform, and a filter bag connecting the second ring platform and the disk. A shaft is rotatably connected to the disk. The upper end of the shaft passes through the upper inner wall of the filter vessel and the lower end of the ultrasonic extraction vessel and extends into the ultrasonic extraction vessel to connect with the ultrasonic equipment. The lower end of the shaft is connected to several elastic scrapers that cooperate with the filter bag to scrape.

[0007] Furthermore, the ultrasonic extraction vessel is provided with a feed flange at the top.

[0008] Furthermore, an electromagnetic discharge valve is installed at the bottom of the filter vessel.

[0009] Furthermore, the filter vessel is equipped with slag discharge flanges on both sides of its inner wall, and the horizontal height of the slag discharge flanges is higher than that of the second ring platform.

[0010] Furthermore, the ultrasonic devices are all connected by a cross-shaped connecting plate.

[0011] Furthermore, the upper end of the shaft is connected to the center of the lower end face of the cross connecting plate.

[0012] Furthermore, a through-tube is coaxially arranged between the ultrasonic extraction vessel and the filtration vessel.

[0013] Furthermore, the shaft extends through the through-tube into the ultrasonic extraction vessel and is sealed and rotatably fitted with the through-tube.

[0014] Furthermore, the linkage assembly includes a lead screw, a first gear, a sleeve ring, and a second gear ring.

[0015] Furthermore, the upper and lower ends of the lead screw are respectively rotatably connected to the sides of the upper and lower rings that are close to each other.

[0016] Furthermore, the first gear is fitted on the outer side of the upper end of the lead screw, and the fitting ring is fitted on the inner wall of the ultrasonic extraction vessel.

[0017] Furthermore, the second gear ring is fitted onto the inner wall of the sleeve ring and meshes with each of the first gears.

[0018] Furthermore, the slide block is threaded onto the outside of the lead screw on one side of each side.

[0019] Furthermore, multiple sets of guide rods are arrayed between the upper and lower rings, and each set of guide rods has two rods.

[0020] Furthermore, multiple slide blocks are provided, and each slide block is slidably sleeved on the outside of two guide rods in the same group on the corresponding side.

[0021] Furthermore, the lead screw is positioned between the two guide rods in each group.

[0022] Furthermore, the drive component includes a servo motor and a second gear.

[0023] Furthermore, the servo motors are arranged in a parallel array and mounted on the upper end face of the ultrasonic extraction vessel.

[0024] Furthermore, the output end of the servo motor extends into the ultrasonic extraction vessel, and a second gear is fitted onto the extended end.

[0025] Furthermore, the second gear array is disposed outside the first gear ring and meshes with the first gear ring.

[0026] Furthermore, a collar is connected to the lower end of the shaft, and the collar is positioned above the disc and the filter bag.

[0027] Furthermore, the elastic scraper array is arranged at the lower end of the shaft and is positioned above the filter bag.

[0028] Compared with the prior art, the present invention has the following technical advantages: (1) The membrane separation ultrasonic-assisted device of the present invention can be used for efficient ultrasonic extraction of the pulverized ginkgo leaf dispersion, and can be used for continuous coarse filtration after extraction, and can then be used for subsequent membrane separation and purification steps, realizing efficient, mild and continuous extraction of active ingredients from ginkgo leaves, and significantly improving processing efficiency.

[0029] (2) This invention utilizes multiple sets of ultrasonic devices that can slide up and down along a guide rod and rotate with a ring inside the extraction vessel, enabling dynamic and multi-angle ultrasonic treatment of ginkgo leaf solutions at different depths and positions within the vessel. Compared to fixed ultrasonic probes, this design effectively expands the coverage of ultrasonic cavitation, avoids extraction dead zones, and thus more fully disrupts plant cell walls, accelerates the dissolution of ginkgo flavonoids and terpene lactones, and significantly improves the extraction rate of active ingredients and batch-to-batch uniformity.

[0030] (3) In this invention, an electromagnetic feed valve controls the material transfer between the ultrasonic extraction vessel and the filtration vessel, and a filter bag is installed in the filtration vessel for preliminary solid-liquid separation. This structure allows the solution to directly enter the filtration process after ultrasonic extraction, without the need for manual transfer or external filtration equipment, thus realizing continuous operation of extraction-coarse filtration. The precise control of the electromagnetic feed valve can also avoid over-extraction or material retention, improving the overall processing efficiency and automation level.

[0031] (4) The elastic scraper inside the filter vessel of the present invention is linked to the ultrasonic device in the extraction vessel through a shaft. When the ultrasonic device slides up and down or rotates during the extraction process, it will simultaneously drive the elastic scraper to scrape the inner wall of the filter bag, so as to continuously remove the solid residues attached to the surface of the filter bag during the filtration process, keep the filter holes unobstructed, and maintain a stable filtration flow.

[0032] (5) After ultrasonic high-efficiency extraction and bag filter coarse filtration in this device, the active component solution obtained has removed most of the plant tissue residue and large particulate impurities, and the turbidity has been significantly reduced. This creates favorable conditions for subsequent fine membrane separation steps (such as ultrafiltration and nanofiltration), which can effectively reduce membrane fouling, extend the cleaning cycle and service life of membrane modules, and thus improve the stability and economy of the entire green extraction and purification process. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the ultrasonic-assisted membrane separation device of the present invention.

[0034] Figure 2 This is a cross-sectional view of the front structure of the present invention.

[0035] Figure 3 This is a schematic diagram of the internal structure of the ultrasonic extraction vessel and the filtration vessel of the present invention.

[0036] Figure 4 This is a schematic diagram of the internal structure of the ultrasonic extraction vessel of the present invention.

[0037] Figure 5 This is a bottom view of the internal structure of the ultrasonic extraction vessel of the present invention.

[0038] Figure 6This is a bottom view of the internal structure of the filter vessel of the present invention.

[0039] Figure 7 This is a schematic diagram of the internal structure of the filter vessel of the present invention.

[0040] Explanation of markings in the diagram: 1. Ultrasonic extraction vessel; 2. Filter vessel; 3. Electromagnetic feed valve; 4. Feed flange; 5. Electromagnetic discharge valve; 6. First ring platform; 7. First gear ring; 8. Upper ring; 9. Guide rod; 10. Lower ring; 11. Lead screw; 12. First gear; 13. Fitting ring; 14. Second gear ring; 15. Slide seat; 16. Ultrasonic equipment; 17. Cross connecting plate; 18. Servo motor; 19. Second gear; 20. Through cylinder; 21. Shaft; 22. Fitting ring; 23. Disc; 24. Second ring platform; 25. Filter bag; 26. Elastic scraper; 27. Slag discharge flange. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0042] In this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] Example 1: This embodiment provides a membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves. It is used for efficient ultrasonic-assisted extraction and continuous coarse filtration of active ingredients such as ginkgo flavonoids and terpene lactones from ginkgo. The auxiliary device of this embodiment includes an ultrasonic extraction vessel 1, a filter vessel 2 located at the lower end of the ultrasonic extraction vessel 1, and an electromagnetic feed valve 3 installed between the ultrasonic extraction vessel 1 and the filter vessel 2.

[0045] The ultrasonic extraction vessel 1 of this embodiment is used to receive ginkgo leaf solution and perform ultrasonic-assisted extraction treatment on it. The vessel body of the ultrasonic extraction vessel 1 is provided with an upper ring 8, a lower ring 10, and several sets of guide rods 9 connecting the upper ring 8 and the lower ring 10. Each set of guide rods 9 is slidably fitted with a slide seat 15, and each slide seat 15 is equipped with an ultrasonic device 16. In this embodiment, the upper end of the upper ring 8 is provided with a first ring platform 6, and a first toothed ring 7 is rotatably fitted on the outer side of the first ring platform 6.

[0046] In this embodiment, a linkage assembly is provided between the upper ring 8 and the lower ring 10 to drive the ultrasonic device 16 to slide up and down along the guide rod 9. A drive assembly is also installed on the ultrasonic extraction vessel 1 to drive the upper ring 8 and the lower ring 10 to rotate.

[0047] In this embodiment, the filter vessel 2 is used to receive the active component solution after ultrasonic-assisted extraction from the ultrasonic extraction vessel 1. The filter vessel 2 contains a second ring platform 24, a disc 23 located at the center of the second ring platform 24, and a filter bag 25 connecting the second ring platform 24 and the disc 23. A shaft 21 is rotatably connected to the disc 23. The upper end of the shaft 21 passes through the upper inner wall of the filter vessel 2 and the lower end of the ultrasonic extraction vessel 1, extending into the ultrasonic extraction vessel 1 and connecting to the ultrasonic device 16. The lower end of the shaft 21 is connected to several elastic scrapers 26 that cooperate with the filter bag 25 for scraping.

[0048] The ultrasonic-assisted membrane separation device of this embodiment can be used for efficient ultrasonic extraction of pulverized ginkgo leaf dispersion. After extraction, it can be flexibly and continuously coarsely filtered, and then used for subsequent membrane separation and purification steps. This achieves efficient, gentle and continuous extraction of active ingredients from ginkgo leaves, significantly improving processing efficiency.

[0049] Example 2: This embodiment provides a membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves. The device includes an ultrasonic extraction vessel 1, a filter vessel 2 located at the lower end of the ultrasonic extraction vessel 1, and an electromagnetic feed valve 3 installed between the ultrasonic extraction vessel 1 and the filter vessel 2.

[0050] The difference from Example 1 is that the ultrasonic extraction vessel 1 in this example has a feed flange 4 at the top. By connecting the feed flange 4 to the upstream equipment, the pulverized and pretreated ginkgo leaf solution can be contained.

[0051] In this embodiment, the bottom of the filter vessel 2 is equipped with an electromagnetic discharge valve 5, which is used to discharge the filtrate containing ginkgo active ingredients after filtration.

[0052] In this embodiment, the filter vessel 2 is equipped with slag discharge flanges 27 on both sides of its inner wall, and the horizontal height of the slag discharge flanges 27 is higher than that of the second ring platform 24, so that the filter residue can be discharged through the slag discharge flanges 27.

[0053] In this embodiment, the ultrasonic devices 16 are connected by a cross-shaped connecting plate 17, and the upper end of the shaft 21 is connected to the center of the lower end face of the cross-shaped connecting plate 17.

[0054] In this embodiment, a through-tube 20 is coaxially arranged between the ultrasonic extraction vessel 1 and the filter vessel 2. The shaft 21 extends through the through-tube 20 into the ultrasonic extraction vessel 1 and is sealed and rotated between the shaft 21 and the through-tube 20.

[0055] In this embodiment, the lower end of the shaft 21 is connected to a collar 22, and the collar 22 is located above the disc 23 and the filter bag 25.

[0056] In this embodiment, the elastic scraper strips 26 are arranged in an array at the lower end of the shaft 21 and are all positioned above the filter bag 25.

[0057] Example 3: This embodiment provides a membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves. The device includes an ultrasonic extraction vessel 1, a filter vessel 2 located at the lower end of the ultrasonic extraction vessel 1, and an electromagnetic feed valve 3 installed between the ultrasonic extraction vessel 1 and the filter vessel 2.

[0058] The difference from Embodiment 1 is that the linkage assembly in this embodiment includes a lead screw 11, a first gear 12, a sleeve ring 13, and a second gear ring 14. The upper and lower ends of the lead screw 11 are rotatably connected to the adjacent sides of the upper ring 8 and the lower ring 10, respectively. The first gear 12 is fitted onto the outer side of the upper end of the lead screw 11, and the sleeve ring 13 is fitted onto the inner wall of the ultrasonic extraction vessel 1. The second gear ring 14 is fitted onto the inner wall of the sleeve ring 13 and meshes with each of the first gears 12. A slide block 15 is threaded onto the outer side of its respective lead screw 11.

[0059] In this embodiment, multiple sets of guide rods 9 are arrayed between the upper ring 8 and the lower ring 10, and each set of guide rods 9 has two rods. Multiple slide blocks 15 are correspondingly provided, with each slide block 15 slidably fitted on both sides of the two guide rods 9 in the same set on the corresponding side. A lead screw 11 is disposed between the two guide rods 9 in each set.

[0060] The working principle of the linkage component in this embodiment is as follows: A lead screw 11 is rotatably mounted between the upper ring 8 and the lower ring 10, and a slide block 15 is threaded onto the outside of the lead screw 11. A first gear 12 is fitted onto the outer side of the upper end of the lead screw 11, and the first gear 12 can mesh with the second gear ring 14. When the upper ring 8 and the lower ring 10 rotate, they can drive the first gear 12 to mesh with the second gear ring 14, thereby driving the lead screw 11 to rotate. The forward and reverse rotation of the lead screw 11 is controlled by adjusting the forward and reverse rotation of the servo motor 18, so that the slide block 15 and the ultrasonic device 16 on it can rotate inside the ultrasonic extraction vessel 1 and move up and down along the axial direction of the ultrasonic extraction vessel 1, further improving the uniformity and efficiency of extraction. While each ultrasonic device 16 moves up and down, it can also pull the shaft 21 to drive the disc 23 to move up and down, thereby causing the filter bag 25 to be in a downward or upward funnel state, preventing the filter residue from accumulating at the bottom of the filter bag 25 and causing blockage.

[0061] Example 4: This embodiment provides a membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves. The device includes an ultrasonic extraction vessel 1, a filter vessel 2 located at the lower end of the ultrasonic extraction vessel 1, and an electromagnetic feed valve 3 installed between the ultrasonic extraction vessel 1 and the filter vessel 2.

[0062] The difference from Embodiment 1 is that the drive assembly in this embodiment includes a servo motor 18 and a second gear 19. Multiple servo motors 18 are arranged in parallel array and mounted on the upper surface of the ultrasonic extraction vessel 1. The output end of the servo motor 18 extends into the ultrasonic extraction vessel 1, and the second gear 19 is fitted onto the extended end. The second gear 19 array is located outside the first gear ring 7 and meshes with it.

[0063] The working principle of the driver component in this embodiment is as follows: The servo motor 18 is controlled to run, which in turn drives the second gear 19 to rotate. Through its meshing with the first gear ring 7, the upper ring 8 and the lower ring 10 are driven to rotate, which in turn drives the ultrasonic device 16, which slides on the guide rod 9 between the upper ring 8 and the lower ring 10, to rotate inside the ultrasonic extraction vessel 1.

[0064] Example 5: like Figures 1-7 As shown, this invention discloses a membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves, comprising an ultrasonic extraction vessel 1. A filter vessel 2 is connected to the lower end of the ultrasonic extraction vessel 1, and an electromagnetic discharge valve 3 is installed between the ultrasonic extraction vessel 1 and the filter vessel 2. An inlet flange 4 is provided at the upper end of the ultrasonic extraction vessel 1, and an electromagnetic discharge valve 5 is installed at the lower end of the filter vessel 2 for convenient loading and unloading.

[0065] In this embodiment, a first ring stage 6 is installed on the upper inner wall of the ultrasonic extraction vessel 1, and a first toothed ring 7 is rotatably fitted on the outer side of the first ring stage 6. An upper ring 8 is connected to the lower end of the first toothed ring 7, and multiple guide rods 9 are arrayed and connected to the lower end of the upper ring 8. The lower ends of all guide rods 9 are connected to a lower ring 10. A slide seat 15 is slidably fitted on the outer side of the guide rods 9, and an ultrasonic device 16 is installed on the slide seat 15.

[0066] In this embodiment, a second ring platform 24 is fitted inside the filter vessel 2, and a filter bag 25 is fitted inside the second ring platform 24. A disc 23 is fitted at the center of the filter bag 25 on the second ring platform 24. A shaft 21 is rotatably connected to the upper end of the disc 23, and the upper end of the shaft 21 passes through the upper inner wall of the filter vessel 2 and the lower end of the ultrasonic extraction vessel 1, and extends into the ultrasonic extraction vessel 1 to connect with the ultrasonic device 16. A plurality of elastic scraper strips 26 are arrayed at the lower end of the shaft 21 to cooperate with the filter bag 25 for scraping.

[0067] In this embodiment, a coaxial through-tube 20 is provided between the ultrasonic extraction vessel 1 and the filter vessel 2. The shaft 21 extends through the through-tube 20 into the ultrasonic extraction vessel 1 and is sealed and rotated between the shaft 21 and the through-tube 20 to prevent leakage between the ultrasonic extraction vessel 1 and the filter vessel 2.

[0068] In this embodiment, the lower end of the shaft 21 is connected to a collar 22, and the collar 22 is located above the disc 23 and the filter bag 25. Each elastic scraper 26 is made of elastic plastic and is located above the filter bag 25, so that the shaft 21 can drive each elastic scraper 26 to rotate with the upper ring 8 and the lower ring 10 to scrape the filter bag 25 in the filtering state, so as to avoid the accumulation of filter residue on the surface of the filter bag 25 and cause blockage.

[0069] In this embodiment, the ultrasonic extraction vessel 1 is equipped with a driving assembly for driving the upper ring 8 and the lower ring 10 to rotate. The driving assembly specifically includes a servo motor 18 and a second gear 19. Multiple servo motors 18 are arranged in an array on the upper surface of the ultrasonic extraction vessel 1. The output end of the servo motor 18 extends into the ultrasonic extraction vessel 1, and a second gear 19 is fitted onto the extended end. Each second gear 19 is arranged in an array outside the first gear ring 7 and meshes with it.

[0070] By connecting the feed flange 4 to the upstream equipment, the crushed and pre-treated ginkgo leaf solution is contained. Then, the servo motor 18 is controlled to run, which in turn drives the second gear 19 to rotate. Through its meshing with the first gear ring 7, the gear 19 drives the upper ring 8 and lower ring 10 to rotate, which in turn drives the ultrasonic device 16, which slides on the guide rod 9 between the upper ring 8 and lower ring 10, to rotate inside the ultrasonic extraction vessel 1. Simultaneously turning on the ultrasonic device 16 allows for control of its rotation within the ultrasonic extraction vessel 1, agitating the ginkgo leaf solution and achieving efficient extraction. While the ultrasonic devices 16 rotate, they also drive the cross connecting plate 17 and the shaft 21 to rotate, causing the elastic scrapers 26 to adhere to and rotate on the upper surface of the filter bag 25. After ultrasonic extraction is complete, opening the electromagnetic discharge valve 3 allows the ginkgo leaf solution in the ultrasonic extraction vessel 1 to flow onto the filter bag 25 for filtration. During the process, the elastic scraper 26 scrapes the filter bag 25 to prevent the filter residue on the filter bag 25 from accumulating and clogging, thereby improving the filtration efficiency and thus improving the overall extraction and coarse filtration efficiency. In addition, due to its elasticity, the elastic scraper 26 can effectively fit the surface of the filter bag 25 in various states.

[0071] In this embodiment, a linkage assembly is also provided between the upper ring 8 and the lower ring 10. This linkage assembly is used to drive the ultrasonic device 16 to slide up and down along the axial direction of the guide rod 9 when the upper ring 8 and the lower ring 10 rotate. The linkage assembly specifically includes a lead screw 11, a first gear 12, a sleeve ring 13, and a second gear ring 14. The upper and lower ends of the lead screw 11 are rotatably connected to the adjacent sides of the upper ring 8 and the lower ring 10. The first gear 12 is fitted onto the outer side of the upper end of the lead screw 11, the sleeve ring 13 is fitted onto the inner wall of the ultrasonic extraction vessel 1, and the second gear ring 14 is fitted onto the inner wall of the sleeve ring 13 and meshes with each of the first gears 12. A slide block 15 is threaded onto the outer side of its respective lead screw 11.

[0072] In this embodiment, multiple sets of guide rods 9 are arrayed between the upper ring 8 and the lower ring 10, with two guide rods in each set, and multiple slide blocks 15 are also provided. Each slide block 15 is slidably sleeved on both sides of the two guide rods 9 of the same set on the corresponding side, and the lead screw 11 is arranged between the two guide rods 9 in each set.

[0073] In this embodiment, all ultrasonic devices 16 are connected by a cross-shaped connecting plate 17, and the upper end of the shaft 21 is connected to the center of the lower end face of the cross-shaped connecting plate 17. The inner walls on both sides of the filter vessel 2 are also connected to slag discharge flanges 27, and the slag discharge flanges 27 on both sides are located above the second ring platform 24.

[0074] In this embodiment, a lead screw 11 is rotatably mounted between the upper ring 8 and the lower ring 10, and a slide block 15 is threaded onto the outside of the lead screw 11. A first gear 12 is fitted onto the outer side of the upper end of the lead screw 11, and the first gear 12 can mesh with a second gear ring 14. Thus, when the upper ring 8 and the lower ring 10 rotate, they can drive the first gear 12 to mesh with the second gear ring 14, thereby driving the lead screw 11 to rotate. Furthermore, by adjusting the forward and reverse rotation of the servo motor 18, the forward and reverse rotation of the lead screw 11 can be controlled. This allows the slide block 15 and its ultrasonic device 16 to rotate within the ultrasonic extraction vessel 1, while also moving up and down along the axial direction of the ultrasonic extraction vessel 1, further improving the uniformity and efficiency of the extraction. While the ultrasonic devices 16 move up and down, they can also pull the shaft 21 to move the disc 23 up and down, thereby causing the filter bag 25 to present a downward or upward funnel shape, preventing filter residue from accumulating at the bottom of the filter bag 25 and causing blockage. Meanwhile, when rinsing the filter vessel 2, the filter bag 25 can be adjusted to an upward funnel shape to facilitate the discharge of filter residue through the discharge flange 27.

[0075] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves, characterized in that, The device includes an ultrasonic extraction vessel (1), a filter vessel (2) located at the lower end of the ultrasonic extraction vessel (1), and an electromagnetic feeding valve (3) installed between the ultrasonic extraction vessel (1) and the filter vessel (2). The ultrasonic extraction vessel (1) is used to receive the ginkgo leaf solution and perform ultrasonic-assisted extraction on it. The vessel body is provided with an upper ring (8), a lower ring (10) and several sets of guide rods (9) connecting the upper ring (8) and the lower ring (10). Each set of guide rods (9) is slidably fitted with a slide seat (15) and an ultrasonic device (16) is installed on the slide seat (15). The upper end of the upper ring (8) is provided with a first ring platform (6), and a first toothed ring (7) is rotatably fitted on the outer side of the first ring platform (6). A linkage assembly for driving the ultrasonic device (16) to slide up and down along the guide rod (9) is provided between the upper ring (8) and the lower ring (10), and a drive assembly for driving the upper ring (8) and the lower ring (10) to rotate is also installed on the ultrasonic extraction vessel (1). The filter vessel (2) is used to receive the active component solution after ultrasonic-assisted extraction in the ultrasonic extraction vessel (1). The vessel body is provided with a second ring platform (24), a disc (23) located at the center of the second ring platform (24), and a filter bag (25) connecting the second ring platform (24) and the disc (23). A shaft (21) is rotatably connected to the disc (23). The upper end of the shaft (21) passes through the upper inner wall of the filter vessel (2) and the lower end of the ultrasonic extraction vessel (1) and extends into the ultrasonic extraction vessel (1) to connect with the ultrasonic device (16). The lower end of the shaft (21) is connected with several elastic scrapers (26) that cooperate with the filter bag (25) to scrape.

2. The membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves according to claim 1, characterized in that, The top of the ultrasonic extraction vessel (1) is provided with a feed flange (4). The bottom of the filter vessel (2) is equipped with an electromagnetic discharge valve (5); The filter vessel (2) has slag discharge flanges (27) installed on both sides of its inner walls, and the horizontal height of the slag discharge flanges (27) is higher than that of the second ring platform (24).

3. The membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves according to claim 1, characterized in that, The ultrasonic devices (16) are connected by a cross-shaped connecting plate (17). The upper end of the shaft (21) is connected to the center of the lower end face of the cross connecting plate (17).

4. The membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves according to claim 1, characterized in that, A through-tube (20) is coaxially arranged between the ultrasonic extraction vessel (1) and the filter vessel (2). The shaft (21) extends through the through-tube (20) into the ultrasonic extraction vessel (1) and is sealed and rotated between the through-tube (20).

5. The membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves according to claim 1, characterized in that, The linkage assembly includes a lead screw (11), a first gear (12), a sleeve ring (13), and a second gear ring (14). The upper and lower ends of the lead screw (11) are respectively rotatably connected to the side of the upper ring (8) and the lower ring (10) that are close to each other; The first gear (12) is fitted on the outer side of the upper end of the lead screw (11), and the fitting ring (13) is fitted on the inner wall of the ultrasonic extraction vessel (1); The second gear ring (14) is fitted onto the inner wall of the sleeve ring (13) and meshes with each of the first gears (12); The slide (15) is threaded onto the outside of the lead screw (11) on one side.

6. The membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves according to claim 5, characterized in that, Multiple sets of guide rods (9) are arrayed between the upper ring (8) and the lower ring (10), and each set of guide rods (9) has two rods. The slide block (15) is provided in multiple ways, and each slide block (15) is slidably sleeved on both sides of the two guide rods (9) in the same group on the corresponding side; The lead screw (11) is positioned between the two guide rods (9) in each group.

7. The membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves according to claim 1, characterized in that, The drive assembly includes a servo motor (18) and a second gear (19); The servo motors (18) are arranged in multiple parallel arrays and installed on the upper end face of the ultrasonic extraction vessel (1); The output end of the servo motor (18) extends into the ultrasonic extraction vessel (1), and a second gear (19) is fitted at the extended end.

8. A membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves according to claim 7, characterized in that, The second gear (19) array is disposed on the outside of the first gear ring (7) and meshes with the first gear ring (7).

9. A membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves according to claim 1, characterized in that, The lower end of the shaft (21) is connected to a collar (22), and the collar (22) is located above the disc (23) and the filter bag (25).

10. A membrane separation ultrasonic-assisted device for extracting active ingredients from ginkgo leaves according to claim 1, characterized in that, The elastic scraper strips (26) are arranged in an array at the lower end of the shaft (21) and are all located above the filter bag (25).

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