Edible fungus polysaccharide extraction device and extraction method thereof

Abstract

The invention belongs to the technical field of edible fungus polysaccharide extraction, and discloses an edible fungus polysaccharide extraction device and an extraction method thereof.The edible fungus polysaccharide extraction device comprises an ultrasonic extraction box, a box cover is installed at the top of the ultrasonic extraction box, an ultrasonic generation head is fixedly connected to the bottom end of the box cover, and a stirring assembly is arranged in the ultrasonic extraction box; the stirring assembly comprises a center shaft arranged in the ultrasonic extraction box, first stirring blades are uniformly mounted on the outer wall of the center shaft in an annular array, first connecting rings are fixedly connected to the ends, away from the center shaft, of the first stirring blades, fixing plates are fixedly connected to the top ends of the first connecting rings, and third stirring blades are mounted on the side walls of the fixing plates; the top end of the fixed plate is fixedly connected with a second connecting ring, and second stirring blades are uniformly mounted on the inner wall of the second connecting ring in an annular array; during working, raw materials are prevented from floating and sinking to the bottom through rotary stirring of the first stirring blade, the third stirring blade and the second stirring blade, and the polysaccharide extraction efficiency and the polysaccharide quality of edible mushrooms are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of edible fungus polysaccharide extraction, and specifically relates to an edible fungus polysaccharide extraction device and an extraction method thereof. Background Art

[0002] Edible fungus polysaccharides (such as Lentinan and Ganoderma lucidum polysaccharides) have significant application value in the pharmaceutical, health care and food industries due to their significant biological activity. Currently, ultrasonic extraction has become one of the mainstream technologies for edible fungus polysaccharide extraction due to its advantages such as high efficiency, energy saving and low temperature. After searching, patent: CN220309786U edible fungus polysaccharide extraction device includes an ultrasonic extraction box and an ultrasonic device installed on the ultrasonic extraction box, the ultrasonic device is provided with an ultrasonic generator head, the ultrasonic generator head is located inside the ultrasonic extraction box, and also includes a placement plate provided inside the ultrasonic extraction box. In the process of extracting edible fungus polysaccharides, the utility model of the edible fungus polysaccharide extraction device uses a lifting component and a guide component to make the annular pressure plate slide inside the sampling barrel. During the sliding of the annular extrusion plate, the extract inside the sampling barrel passes through each through hole and squeezes the edible fungus powder inside the sampling barrel through the annular pressure plate. The squeezing effect of the annular pressure plate on the edible fungus powder inside the sampling barrel reduces the probability of solid particles floating on the extract during the ultrasonic process, ensures the effect of high-frequency oscillation of the edible fungus powder, and improves the efficiency of edible fungus polysaccharide extraction. However, in the actual extraction process, edible fungi raw materials will not only float up but also sink to the bottom due to differences in physical properties (such as density, particle size, hydrophobicity, etc.), resulting in uneven extraction, which seriously affects the extraction efficiency and polysaccharide quality. Summary of the Invention

[0003] The purpose of the present invention is to provide an edible fungus polysaccharide extraction device and an extraction method thereof to solve the problems raised in the above background technology.

[0004] In order to achieve the above object, the present invention provides the following technical solution: an edible fungus polysaccharide extraction device, comprising an ultrasonic extraction box, a box cover is installed on the top of the ultrasonic extraction box, an ultrasonic generator head is fixedly connected to the bottom end of the box cover, and a stirring assembly is provided inside the ultrasonic extraction box; The stirring assembly includes a central axis arranged inside the ultrasonic extraction box, the outer wall of the central axis is evenly installed with first stirring blades in an annular array, the end of the first stirring blade away from the central axis is fixedly connected to a first connecting ring, the top of the first connecting ring is fixedly connected to a fixed plate, the side wall of the fixed plate is installed with a third stirring blade, the top of the fixed plate is fixedly connected to a second connecting ring, the inner wall of the second connecting ring is evenly installed with second stirring blades in an annular array, and the top of the second connecting ring is rotatably installed with a top cover; A first rotating shaft is embedded in the interior of the central shaft, and the first rotating shaft is rotatably mounted on the bottom of the ultrasonic extraction box. A first gear is fixedly connected to the outer wall of the first rotating shaft, and a second gear is meshedly connected to one side of the first gear. A second rotating shaft is fixedly mounted on the inner wall of the second gear, and a motor is mounted on the bottom of the second rotating shaft.

[0005] As a further technical solution of the present invention, the outer wall of the first rotating shaft is evenly installed with connecting rods in a ring array, and the connecting rods are slidably installed inside the central shaft.

[0006] As a further technical solution of the present invention, a feed port is provided inside the top cover, a cover plate is provided on the top of the feed port, and the cover plate is rotatably mounted on the top of the top cover.

[0007] As a further technical solution of the present invention, a filter cartridge is fixedly connected to the bottom end of the top cover, and the filter cartridge is arranged outside the ultrasonic generating head.

[0008] As a further technical solution of the present invention, a brush plate is installed at one end of the third stirring blade away from the fixed plate, and the brush plate is arranged on the outer wall of the filter cartridge.

[0009] As a further technical solution of the present invention, the brush plate is slidably installed inside the third stirring blade, and a spring is installed between the brush plate and the third stirring blade.

[0010] As a further technical solution of the present invention, the third stirring blade is fixedly connected to a third rotating shaft at one end close to the fixed plate, and the third rotating shaft is embedded in the interior of the fixed plate. A connecting plate is rotatably installed on the outer wall of the third rotating shaft, and a slider is fixedly connected to the top of the connecting plate. The slider is slidably installed in the interior of the guide groove, and the guide groove is opened in the interior of the top cover.

[0011] As a further technical solution of the present invention, one end of the third rotating shaft is fixedly connected to a third gear, one side of the third gear is meshedly connected to a rack plate, and the rack plate is fixedly installed on the inner wall of the fixed plate.

[0012] As a further technical solution of the present invention, a baffle is rotatably mounted on the outer wall of the third rotating shaft, and the baffle is slidably mounted on one side of the fixed plate.

[0013] An edible fungus polysaccharide extraction method comprises the following steps: S1: During operation, the crushed edible fungi and solvent are first placed in an ultrasonic extraction chamber, where ultrasonic cavitation destroys the cell walls and promotes the dissolution of polysaccharides. S2: Simultaneously starting the motor to drive the second rotating shaft to rotate, the rotation of the second rotating shaft drives the rotation of the second gear, the rotation of the second gear drives the rotation of the first gear, the rotation of the first gear drives the rotation of the connecting rod, the rotation of the connecting rod drives the rotation of the central shaft, the rotation of the central shaft drives the rotation of the first stirring blade, the rotation of the first stirring blade drives the rotation of the first connecting ring, the rotation of the first connecting ring drives the rotation of the fixed plate, the rotation of the fixed plate drives the rotation of the third stirring blade and the second connecting ring, the rotation of the second connecting ring drives the rotation of the second stirring blade, thereby stirring the upper, middle and lower areas in the ultrasonic extraction box; S3: When the fixed plate rotates, the connecting plate is driven to move. The movement of the connecting plate drives the slider to slide in the inner wall of the guide groove, and the slider moves back and forth up and down under the guidance of the slider. The movement of the connecting plate drives the movement of the third rotating shaft, and the movement of the third rotating shaft drives the movement of the third stirring blade, so that the third stirring blade moves up and down during the rotation process, breaking the liquid stratification; S4: When the third rotating shaft moves up and down inside the fixed plate, the movement of the third rotating shaft drives the third gear to contact the rack plate and rotate, causing the third stirring blade to rotate, thereby strengthening fluid mixing and further improving the polysaccharide extraction efficiency and polysaccharide quality.

[0014] The beneficial effects of the present invention are as follows: The present invention is provided with a stirring component. When working, first, the crushed edible fungi and the solvent are placed in an ultrasonic extraction box, and the cell walls are destroyed by ultrasonic cavitation, so as to promote the dissolution of polysaccharides; at the same time, the motor is started to drive the second rotating shaft to rotate, the rotation of the second rotating shaft drives the rotation of the second gear, the rotation of the second gear drives the rotation of the first gear, the rotation of the first gear drives the rotation of the connecting rod, the rotation of the connecting rod drives the rotation of the central shaft, the rotation of the central shaft drives the rotation of the first stirring blade, the rotation of the first stirring blade drives the rotation of the first connecting ring, the rotation of the first connecting ring drives the rotation of the fixed plate, the rotation of the fixed plate drives the rotation of the third stirring blade and the second connecting ring, and the rotation of the second connecting ring drives the rotation of the second stirring blade, thereby stirring the upper, middle and lower areas in the ultrasonic extraction box, so that the raw materials are always in a dynamic suspension state, thereby preventing the raw materials from floating and sinking to the bottom, and the relative movement speed of the raw materials and the solvent is increased, which accelerates the dissolution of polysaccharides, and helps to improve the polysaccharide extraction efficiency and polysaccharide quality of the edible fungi.

[0015] The present invention enables the third stirring blade to move up and down during the rotation process. When the fixed plate rotates, it drives the connecting plate to move. The movement of the connecting plate drives the slider to slide in the inner wall of the guide groove, and moves back and forth up and down under its guidance. The movement of the connecting plate drives the movement of the third rotating shaft, and the movement of the third rotating shaft drives the movement of the third stirring blade, so that the third stirring blade moves up and down during the rotation process, breaking the liquid stratification and fully mixing the high concentration area with the low concentration area, which helps to enhance the mixing effect, eliminate stratification and dead zones, and help improve the polysaccharide extraction efficiency.

[0016] The present invention rotates and stirs the third stirring blade while rotating. When the third rotating shaft moves up and down inside the fixed plate, the movement of the third rotating shaft drives the third gear to contact the rack plate and rotate, causing the third stirring blade to rotate, which helps to enhance fluid mixing and eliminate local concentration gradients, thereby further improving the quality of polysaccharides. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic cross-sectional view of the structure of the ultrasonic extraction box of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure at center A; Figure 5 This is a structural diagram of the first connecting ring and the second connecting ring of the present invention; Figure 6 This is a schematic diagram of the structure of the top cover of the present invention; Figure 7 This is a schematic cross-sectional view of the top cover and the fixing plate of the present invention; Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at point B in the middle; Figure 9 This is a schematic cross-sectional view of the top cover structure of the present invention; Figure 10 This is a schematic cross-sectional view of the structure of the third stirring blade of the present invention; In the figure: 1. Ultrasonic extraction box; 2. Box cover; 3. Ultrasonic generating head; 4. Filter cartridge; 5. Central axis; 6. First stirring blade; 7. First connecting ring; 8. First rotating shaft; 9. Connecting rod; 10. First gear; 11. Second gear; 12. Second rotating shaft; 13. Motor; 14. Fixed plate; 15. Second connecting ring; 16. Second stirring blade; 17. Top cover; 18. Third stirring blade; 19. Third rotating shaft; 20. Connecting plate; 21. Slider; 22. Guide chute; 24. Third gear; 25. Rack plate; 26. Baffle; 27. Brush plate; 28. Spring; 29. ​​Feed port; 30. Cover plate. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] like Figures 1 to 10 As shown, in an embodiment of the present invention, an edible fungus polysaccharide extraction device includes an ultrasonic extraction box 1, a box cover 2 is installed on the top of the ultrasonic extraction box 1, an ultrasonic generator 3 is fixedly connected to the bottom end of the box cover 2, and a stirring component is provided inside the ultrasonic extraction box 1; The stirring assembly includes a central axis 5 arranged inside the ultrasonic extraction box 1, and the outer wall of the central axis 5 is evenly installed with first stirring blades 6 in an annular array, and the end of the first stirring blade 6 away from the central axis 5 is fixedly connected to the first connecting ring 7, the top of the first connecting ring 7 is fixedly connected to the fixing plate 14, and the side wall of the fixing plate 14 is installed with a third stirring blade 18, the top of the fixing plate 14 is fixedly connected to the second connecting ring 15, and the inner wall of the second connecting ring 15 is evenly installed with second stirring blades 16 in an annular array, and the top of the second connecting ring 15 is rotatably installed with a top cover 17; A first rotating shaft 8 is embedded in the interior of the central shaft 5, and the first rotating shaft 8 is rotatably mounted on the bottom of the ultrasonic extraction box 1. A first gear 10 is fixedly connected to the outer wall of the first rotating shaft 8, and a second gear 11 is meshedly connected to one side of the first gear 10. A second rotating shaft 12 is fixedly mounted on the inner wall of the second gear 11, and a motor 13 is mounted at the bottom of the second rotating shaft 12.

[0020] Existing: CN220309786U discloses an edible fungus polysaccharide extraction device, which discloses the ultrasonic extraction box 1 and ultrasonic generating head 3 proposed in this application document. This technical means will not be described in detail here; During operation, the crushed edible fungi and solvent are first placed in the ultrasonic extraction box 1, and the cell walls are destroyed by ultrasonic cavitation to promote the dissolution of polysaccharides; At the same time, the motor 13 is started to drive the second rotating shaft 12 to rotate. The rotation of the second rotating shaft 12 drives the rotation of the second gear 11. The rotation of the second gear 11 drives the rotation of the first gear 10. The rotation of the first gear 10 drives the rotation of the connecting rod 9. The rotation of the connecting rod 9 drives the rotation of the central shaft 5. The rotation of the central shaft 5 drives the rotation of the first stirring blade 6. The rotation of the first stirring blade 6 drives the rotation of the first connecting ring 7. The rotation of the first connecting ring 7 drives the rotation of the fixed plate 14. The rotation of the fixed plate 14 drives the rotation of the third stirring blade 18 and the second connecting ring 15. The rotation of the second connecting ring 15 drives the rotation of the second stirring blade 16, thereby stirring the upper, middle and lower areas in the ultrasonic extraction box 1, so that the raw material is always in a dynamic suspension state, thereby preventing the raw material from floating and sinking, and the relative movement speed of the raw material and the solvent is increased, which accelerates the dissolution of polysaccharides, which helps to improve the polysaccharide extraction efficiency and polysaccharide quality of edible fungi.

[0021] Preferably, the tooth blocks on the outer wall of the second gear 11 are distributed in a sector shape, and the inner wall diameter of the second gear 11 is ten N times the inner wall diameter of the first gear 10, where N is a positive integer; When the second gear 11 drives the first gear 10 to rotate, the device is stirred intermittently, and the local shear force is reduced during the static period, thereby protecting the polysaccharide structure and reducing shear damage.

[0022] like Figure 3 and Figure 4 As shown, the outer wall of the first rotating shaft 8 is evenly installed with connecting rods 9 in a ring array, and the connecting rods 9 are slidably installed inside the central shaft 5.

[0023] When maintaining the first stirring blade 6, the third stirring blade 18 and the second stirring blade 16, they can be directly taken away upwards so that the central shaft 5 slides out from the outer wall of the connecting rod 9, which is convenient for maintenance.

[0024] like Figure 9 As shown, a feed port 29 is provided inside the top cover 17 , and a cover plate 30 is provided on the top of the feed port 29 . The cover plate 30 is rotatably mounted on the top of the top cover 17 .

[0025] When feeding, the feed port 29 is opened by rotating the cover plate 30 , and then edible fungi and solvent are added into the ultrasonic extraction box 1 . After adding, the cover plate 30 is rotated again to close the feed port 29 .

[0026] like Figure 2 and Figure 3 As shown, the bottom end of the top cover 17 is fixedly connected with a filter cartridge 4 , and the filter cartridge 4 is arranged outside the ultrasonic generating head 3 .

[0027] The ultrasonic head 3 is separated from the edible fungi to prevent the edible fungi raw materials (such as mycelium and fragments) from easily gathering on the surface of the ultrasonic head 3 during the ultrasonic process, resulting in a decrease in energy transfer efficiency or even damage to the ultrasonic head 3.

[0028] like Figure 2 and Figure 3 As shown, a brush plate 27 is installed at one end of the third stirring blade 18 away from the fixed plate 14 , and the brush plate 27 is arranged on the outer wall of the filter cartridge 4 .

[0029] When the third stirring blade 18 rotates in the ultrasonic extraction box 1, the end of the brush plate 27 contacts the outer wall of the filter cartridge 4, and the bristles (such as nylon or silicone material) continuously scrape the outer wall of the filter cartridge 4 to remove blockages and maintain pore permeability.

[0030] like Figure 10 As shown, the brush plate 27 is slidably installed inside the third stirring blade 18, and a spring 28 is installed between the brush plate 27 and the third stirring blade 18.

[0031] The bristles on the side wall of the brush plate 27 always have a tendency to move toward the side of the filter cartridge 4, providing flexible pressure so that the bristles always cling to the surface of the filter cartridge 4.

[0032] like Figure 7 、 Figure 8 and Figure 10 As shown, the third stirring blade 18 is fixedly connected to the third rotating shaft 19 at one end close to the fixed plate 14, and the third rotating shaft 19 is embedded in the interior of the fixed plate 14. The outer wall of the third rotating shaft 19 is rotatably installed with a connecting plate 20, and the top of the connecting plate 20 is fixedly connected with a slider 21, which is slidably installed in the interior of the guide groove 22, and the guide groove 22 is opened in the interior of the top cover 17.

[0033] When the fixed plate 14 rotates, it drives the connecting plate 20 to move. The movement of the connecting plate 20 drives the slider 21 to slide in the inner wall of the guide groove 22, and moves back and forth up and down under its guidance. The movement of the connecting plate 20 drives the movement of the third rotating shaft 19, and the movement of the third rotating shaft 19 drives the movement of the third stirring blade 18, so that the third stirring blade 18 moves up and down during the rotation process, breaking the liquid stratification and fully mixing the high concentration area with the low concentration area, which helps to enhance the mixing effect, eliminate stratification and dead zones, and helps to improve the polysaccharide extraction efficiency.

[0034] like Figure 7 、 Figure 8 and Figure 10 As shown, one end of the third rotating shaft 19 is fixedly connected to the third gear 24 , and one side of the third gear 24 is meshedly connected to the rack plate 25 , which is fixedly mounted on the inner wall of the fixed plate 14 .

[0035] When the third rotating shaft 19 moves up and down inside the fixed plate 14, the movement of the third rotating shaft 19 drives the third gear 24 to contact with the rack plate 25 and rotate, causing the third stirring blade 18 to rotate, which helps to enhance fluid mixing and eliminate local concentration gradients, thereby further improving the quality of polysaccharides.

[0036] like Figure 7 、 Figure 8 and Figure 10 As shown, a baffle 26 is rotatably mounted on the outer wall of the third rotating shaft 19 , and the baffle 26 is slidably mounted on one side of the fixed plate 14 .

[0037] A sliding groove is provided inside the fixed plate 14 for the third rotating shaft 19 to slide, and a baffle 26 covers the outside of the sliding groove to prevent the edible fungus raw materials from entering.

[0038] An edible fungus polysaccharide extraction method comprises the following steps: S1: During operation, the crushed edible fungi and solvent are first placed in an ultrasonic extraction box 1, where ultrasonic cavitation is used to destroy the cell walls and promote the dissolution of polysaccharides. S2: Simultaneously start the motor 13 to drive the second rotating shaft 12 to rotate, the rotation of the second rotating shaft 12 drives the rotation of the second gear 11, the rotation of the second gear 11 drives the rotation of the first gear 10, the rotation of the first gear 10 drives the rotation of the connecting rod 9, the rotation of the connecting rod 9 drives the rotation of the central shaft 5, the rotation of the central shaft 5 drives the rotation of the first stirring blade 6, the rotation of the first stirring blade 6 drives the rotation of the first connecting ring 7, the rotation of the first connecting ring 7 drives the rotation of the fixing plate 14, the rotation of the fixing plate 14 drives the rotation of the third stirring blade 18 and the second connecting ring 15, the rotation of the second connecting ring 15 drives the rotation of the second stirring blade 16, thereby stirring the upper, middle and lower areas in the ultrasonic extraction box 1; S3: When the fixed plate 14 rotates, it drives the connecting plate 20 to move. The movement of the connecting plate 20 drives the slider 21 to slide in the inner wall of the guide groove 22, and the slider 21 moves back and forth up and down under the guidance of the guide groove 22. The movement of the connecting plate 20 drives the movement of the third rotating shaft 19. The movement of the third rotating shaft 19 drives the movement of the third stirring blade 18, so that the third stirring blade 18 moves up and down during the rotation process, breaking the liquid stratification; S4: When the third rotating shaft 19 moves up and down inside the fixed plate 14, the movement of the third rotating shaft 19 drives the third gear 24 to contact with the rack plate 25 and rotate, causing the third stirring blade 18 to rotate, thereby strengthening fluid mixing and further improving the polysaccharide extraction efficiency and polysaccharide quality.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An edible fungus polysaccharide extraction device, comprising an ultrasonic extraction box (1), characterized in that: A box cover (2) is installed on the top of the ultrasonic extraction box (1), an ultrasonic generator (3) is fixedly connected to the bottom end of the box cover (2), and a stirring assembly is provided inside the ultrasonic extraction box (1); The stirring assembly comprises a central shaft (5) arranged inside the ultrasonic extraction box (1), the outer wall of the central shaft (5) is uniformly provided with first stirring blades (6) in an annular array, the end of the first stirring blade (6) away from the central shaft (5) is fixedly connected to a first connecting ring (7), the top of the first connecting ring (7) is fixedly connected to a fixing plate (14), the side wall of the fixing plate (14) is installed with a third stirring blade (18), the top of the fixing plate (14) is fixedly connected to a second connecting ring (15), the inner wall of the second connecting ring (15) is uniformly provided with second stirring blades (16) in an annular array, and the top of the second connecting ring (15) is rotatably provided with a top cover (17); A first rotating shaft (8) is embedded in the interior of the central shaft (5), and the first rotating shaft (8) is rotatably mounted on the bottom of the ultrasonic extraction box (1). A first gear (10) is fixedly connected to the outer wall of the first rotating shaft (8), and a second gear (11) is meshedly connected to one side of the first gear (10). A second rotating shaft (12) is fixedly mounted on the inner wall of the second gear (11), and a motor (13) is mounted on the bottom of the second rotating shaft (12).

2. The edible fungus polysaccharide extraction device according to claim 1, characterized in that: Connecting rods (9) are evenly mounted on the outer wall of the first rotating shaft (8) in a ring array, and the connecting rods (9) are slidably mounted inside the central shaft (5).

3. The edible fungus polysaccharide extraction device according to claim 1, characterized in that: A feed port (29) is provided inside the top cover (17), a cover plate (30) is provided on the top of the feed port (29), and the cover plate (30) is rotatably mounted on the top of the top cover (17).

4. The edible fungus polysaccharide extraction device according to claim 1, characterized in that: The bottom end of the top cover (17) is fixedly connected to a filter cartridge (4), and the filter cartridge (4) is arranged outside the ultrasonic generating head (3).

5. The edible fungus polysaccharide extraction device according to claim 1, characterized in that: A brush plate (27) is installed at one end of the third stirring blade (18) away from the fixed plate (14), and the brush plate (27) is arranged on the outer wall of the filter cartridge (4).

6. The edible fungus polysaccharide extraction device according to claim 5, characterized in that: The brush plate (27) is slidably mounted inside the third stirring blade (18), and a spring (28) is mounted between the brush plate (27) and the third stirring blade (18).

7. The edible fungus polysaccharide extraction device according to claim 1, characterized in that: The third stirring blade (18) is fixedly connected to one end of the fixed plate (14) with a third rotating shaft (19), and the third rotating shaft (19) is embedded in the interior of the fixed plate (14). A connecting plate (20) is rotatably mounted on the outer wall of the third rotating shaft (19), and a slider (21) is fixedly connected to the top end of the connecting plate (20). The slider (21) is slidably mounted in the interior of a guide slot (22), and the guide slot (22) is opened in the interior of the top cover (17).

8. The edible fungus polysaccharide extraction device according to claim 7, characterized in that: One end of the third rotating shaft (19) is fixedly connected to a third gear (24), one side of the third gear (24) is meshedly connected to a rack plate (25), and the rack plate (25) is fixedly mounted on the inner wall of the fixed plate (14).

9. The edible fungus polysaccharide extraction device according to claim 7, characterized in that: A baffle (26) is rotatably mounted on the outer wall of the third rotating shaft (19), and the baffle (26) is slidably mounted on one side of the fixed plate (14).

10. An extraction method for an edible fungus polysaccharide extraction device, which is applicable to the edible fungus polysaccharide extraction device according to claims 1 to 9, characterized in that: The following steps are involved: S1: During operation, the crushed edible fungi and the solvent are first placed in an ultrasonic extraction chamber (1), where the cell walls are destroyed by ultrasonic cavitation, thereby promoting the dissolution of polysaccharides. S2: Simultaneously start the motor (13) to drive the second rotating shaft (12) to rotate, the rotation of the second rotating shaft (12) drives the rotation of the second gear (11), the rotation of the second gear (11) drives the rotation of the first gear (10), the rotation of the first gear (10) drives the rotation of the connecting rod (9), the rotation of the connecting rod (9) drives the rotation of the central shaft (5), the rotation of the central shaft (5) drives the rotation of the first stirring blade (6), the rotation of the first stirring blade (6) drives the rotation of the first connecting ring (7), the rotation of the first connecting ring (7) drives the rotation of the fixed plate (14), the rotation of the fixed plate (14) drives the rotation of the third stirring blade (18) and the second connecting ring (15), the rotation of the second connecting ring (15) drives the rotation of the second stirring blade (16), thereby stirring the upper, middle and lower regions in the ultrasonic extraction box (1); S3: When the fixed plate (14) rotates, the connecting plate (20) is driven to move. The movement of the connecting plate (20) drives the slider (21) to slide in the inner wall of the guide groove (22), and the slider (21) moves up and down under the guidance of the guide groove. The movement of the connecting plate (20) drives the movement of the third rotating shaft (19). The movement of the third rotating shaft (19) drives the movement of the third stirring blade (18), so that the third stirring blade (18) moves up and down during the rotation process, breaking the liquid stratification; S4: When the third rotating shaft (19) moves up and down inside the fixed plate (14), the movement of the third rotating shaft (19) drives the third gear (24) to contact the rack plate (25) and rotate, causing the third stirring blade (18) to rotate, thereby strengthening the fluid mixing and further improving the polysaccharide extraction efficiency and polysaccharide quality.

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