Mushroom polysaccharide extraction method and device

Abstract

The invention discloses a mushroom polysaccharide extraction method and device, and relates to the technical field of polysaccharide extraction.The mushroom polysaccharide extraction device comprises a box body, a shell communicated to one side of the box body, a control end electrically connected to the outer wall of the shell, a discharge port fixedly communicated to the other side of the box body and a gas detector in sensing connection with the control end through a transmission line; the extraction structure is arranged in the box body in a sliding manner and is used for continuously extracting polysaccharide; the driving structure is arranged in the shell and is used for driving the extraction structure to lift and close; and the valve opening and closing assemblies are arranged on the two sides of the discharging opening. Through the device, the problems that in an existing polysaccharide extraction device, mushrooms are concentrated into an extracting solution and then mixed with ethyl alcohol to promote polysaccharide precipitation, precipitated polysaccharide floats on the surface of ethyl alcohol due to low density, polysaccharide continuously precipitated during mixing accumulates on the surface to form a blocking layer, sufficient fusion of ethyl alcohol and the extracting solution is hindered, the mixing precipitation efficiency is reduced, and the extraction efficiency is reduced are solved. And the whole process of mixing and analyzing the polysaccharide needs 8-12 hours, so that the subsequent extraction and processing time is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polysaccharide extraction, in particular to a mushroom polysaccharide extraction method and device. BACKGROUND

[0002] The mushroom polysaccharide extraction device is a special device for extracting polysaccharide components from edible fungi (such as shiitake mushrooms, ganoderma lucidum, black fungus, etc.), and its core function is to realize efficient separation and purification of polysaccharides through physical, chemical or biological methods.

[0003] The edible mushroom polysaccharide extraction and separation device and method with publication number CN118787989B can realize that when the pistons move away from each other, the air pressure inside the mixing chamber is in negative pressure, at this time the air inside the shiitake mushroom block is released, when the pistons move close to each other, the air pressure inside the mixing chamber returns to normal, at this time, the shiitake mushroom block will restore to normal form and absorb a large amount of deionized water into the tissue, through multiple reciprocating movements, the tissue inside the shiitake mushroom block is fully infiltrated with deionized water, the deionized water dissolves the polysaccharides inside the tissue, and the device can accelerate the entry of deionized water into the shiitake mushroom block to dissolve the polysaccharides. When extracting polysaccharides from shiitake mushrooms in batches, the efficiency of polysaccharide filtration and extraction is greatly improved, but the existing polysaccharide extraction device still has some deficiencies: In the existing polysaccharide extraction device, when the mushrooms are concentrated into an extraction liquid, the extraction liquid needs to be mixed with ethanol to facilitate the precipitation of polysaccharide molecules. The precipitated polysaccharide molecules may aggregate to form small particles or flocs. Since the density of polysaccharides is usually lower than that of ethanol (especially high-concentration ethanol), these polysaccharide particles will float on the surface of the ethanol. However, during the mixing of ethanol and extraction liquid, as the polysaccharide molecules continue to precipitate, the polysaccharide floating on the surface will gradually accumulate to form a "blocking layer". This polysaccharide blocking layer will hinder the further fusion of ethanol and extraction liquid, resulting in a decrease in the efficiency of ethanol and extraction liquid mixing and promoting the complete precipitation of polysaccharides. Therefore, the time required for the entire mixing and polysaccharide precipitation process is relatively long, usually 8-12 hours, which undoubtedly increases the total time of subsequent polysaccharide extraction processing work.

[0004] In view of the above problems, it is urgent to make innovative design on the basis of the original mushroom polysaccharide extraction device. SUMMARY

[0005] The technical scheme of the present application aims at the technical problem that the prior art solution is too single, and provides a solution significantly different from the prior art. Specifically, the present application aims to provide a mushroom polysaccharide extraction method and device to solve the problem that in the prior art polysaccharide extraction device, after the mushroom is concentrated into an extraction liquid and mixed with ethanol to promote polysaccharide precipitation, the precipitated polysaccharide will float on the surface of the ethanol due to its low density. During mixing, the continuously precipitated polysaccharide accumulates on the surface to form a 'blocking layer', which hinders the full mixing of ethanol and the extraction liquid, reduces the mixing and precipitation efficiency, and makes the entire mixing and precipitation process take 8-12 hours, thereby increasing the subsequent extraction processing time.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A mushroom polysaccharide extraction method, comprising the following steps: S1, gas detection stage: when the extraction liquid is mixed with ethanol to form a 'blocking layer' of polysaccharide, and the amount of ethanol volatilization changes, the polysaccharide extraction begins; S2, polysaccharide isolation extraction stage: the polysaccharide in the 'blocking layer' in step S1 is isolated from the surrounding liquid to complete the preliminary extraction; S3, polysaccharide discharge stage: the isolated 'blocking layer' polysaccharide in step S2 is directly discharged to complete the extraction of polysaccharide.

[0007] A mushroom polysaccharide extraction device, comprising a box, a shell connected to one side of the box, a control end electrically connected to the outer wall of the shell, a discharge port fixedly connected to the other side of the box, and a gas detector connected to the control end through a transmission line, further comprising an extraction structure slidably arranged in the box for continuous extraction of polysaccharide, a driving structure arranged in the shell for driving the extraction structure to lift and close, and a valve opening and closing assembly arranged on both sides of the discharge port, the bottom of the shell is fixedly connected with a sensing plate electrically connected with the shell, and the inner wall of the box is provided with a lifting groove.

[0008] Preferably, the extraction structure comprises a first sliding plate slidably arranged in the lifting groove, shaft rods arranged in an array and penetrating through the first sliding plate, and a frame fixedly connected to the other side of the first sliding plate, the frame is rotatably provided with extraction plates arranged in an array, and the extraction plates are sleeved on the shaft rods.

[0009] Preferably, the two sides of the extraction plate are fixedly connected with a second sliding plate, one side of the second sliding plate is fixedly connected with a third sliding plate, the third sliding plate is provided with a discharge groove, the outer wall of the third sliding plate is fixedly connected with trigger blocks arranged in a symmetrical manner, and the trigger blocks are used to drive the valve opening and closing assembly to open and close.

[0010] Preferably, the driving structure comprises a lifting assembly arranged symmetrically on the first sliding plate for driving the lifting of the first sliding plate and a driving assembly for driving the rotation closing of the extraction plate, the lifting assembly comprises a first connecting piece fixedly connected to the inner wall of the shell, a second connecting piece fixedly connected to the outer wall of the first sliding plate and a second connecting rod rotatably arranged on the first connecting piece and the second connecting piece respectively, the connecting portions of the two second connecting rods are fixedly connected with a driving piece, one end of the driving piece is fixedly provided with a hydraulic device, and the hydraulic device is fixedly connected to the inner wall of the shell.

[0011] Preferably, the driving assembly comprises an extension plate fixedly connected to the outer wall of the first sliding plate, a motor arranged on the extension plate, a driving block arranged in a horizontal array on the shaft and a first connecting rod slidably connected to one end of the driving block, and the output end of the motor is fixedly connected with one of the shafts.

[0012] Preferably, the motor and the hydraulic device are electrically connected with the control end of the outer wall of the shell through connecting wires to form a sensing driving loop, and a limit switch for controlling the rotation angle of the output end of the motor is arranged on the motor.

[0013] Preferably, the valve opening and closing assembly comprises a valve plate rotatably arranged in the discharge port, a limit cam fixedly connected to the main shaft on both sides of the valve plate, a toothed frame slidably engaged on the main shaft on both sides of the valve plate and a limit rod arranged on the toothed frame for assisting the limit cam in limiting the opening angle of the valve plate, one side of the toothed frame is fixedly connected with a push rod, one end of the push rod penetrates through the box and is located in the lifting groove, and one end of the push rod is in extrusion contact with the trigger block.

[0014] Preferably, a spring is sleeved on the push rod, and the two ends of the spring are respectively connected with the outer wall of the box and the outer wall of the toothed frame.

[0015] Compared with the prior art, the present application has the following advantages: 1. Upon receiving a signal from the gas detector, the control unit immediately activates the hydraulic system. The hydraulic system begins operation, applying traction force to the two second connecting rods via a drive component. Since the second connecting rods are rotatably connected to the first connecting member fixed to the inner wall of the outer casing and the second connecting member fixed to the outer wall of the first sliding plate, the second connecting rods rotate under the traction force. This causes the first sliding plate to descend along the lifting groove opened on the inner wall of the casing. The descent of the first sliding plate causes the frame and the extraction plate rotatably mounted on the frame to descend together until the frame is accurately positioned directly below the "sealing layer." When the first sliding plate descends and touches the sensor plate fixedly connected to the bottom of the outer casing, the control unit receives a signal from the sensor plate and quickly starts the motor. The motor begins operation, and its output drives one of the shafts to rotate. Since a drive block is fitted on the shaft and is slidably connected to the first connecting rod, the rotation of this shaft synchronously drives the rotation of the remaining shafts through the drive block and the first connecting rod. As the shaft rotates, the extraction plate inside the frame begins to rotate and close, accurately isolating the polysaccharides of the "sealing layer" onto the extraction plate. 2. When the polysaccharide in the "blocking layer" is successfully isolated on the extraction plate, the inclined surface of the extraction plate facilitates the smooth discharge of the polysaccharide. Simultaneously, as the second slide plate moves downward in sync with the first slide plate, the trigger block on the second slide plate begins to squeeze the push rod. The squeezed push rod then moves the toothed frame fixedly connected to it. During this movement, the toothed frame meshes with the gears on the main shafts on both sides of the valve plate, thereby driving the valve plate main shaft to rotate. Driven by the main shaft, the valve plate begins to rotate and releases the closure of the discharge port. At this point, the polysaccharide in the "blocking layer" isolated on the extraction plate flows smoothly into the discharge port for discharge due to the inclined surface design of the extraction plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the polysaccharide extraction device of the present invention.

[0017] Figure 2 This is another schematic diagram of the overall structure of the polysaccharide extraction device of the present invention.

[0018] Figure 3 This is a cross-sectional view of the overall structure of the polysaccharide extraction device of the present invention.

[0019] Figure 4 This is a schematic diagram of the extracted structure of the present invention.

[0020] Figure 5 This is a schematic diagram of the extraction structure and driving structure of the present invention.

[0021] Figure 6 This is a schematic diagram of the closed state of the separation structure of the present invention.

[0022] Figure 7The internal component sectional view of the shell of the present application.

[0023] Figure 8 The structure of A is enlarged and shown schematically. Figure 6

[0024] In the figure: 1, box; 2, shell; 3, discharge port; 301, valve plate; 4, gas detector; 5, control end; 6, sensing plate; 7, first sliding plate; 701, extension plate; 8, frame; 9, extraction plate; 901, shaft; 10, second sliding plate; 1001, trigger block; 11, hydraulic device; 12, motor; 13, third sliding plate; 14, tooth frame; 1401, limiting rod; 15, driving block; 16, first connecting rod; 17, first connecting piece; 18, driving piece; 19, second connecting rod; 20, second connecting piece; 21, limiting cam; 22, push rod; 23, spring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0026] Please refer to Figures 1 to 8 The present application provides a technical solution: a mushroom polysaccharide extraction method, comprising the following steps: S1, gas detection stage: when the polysaccharide forms a "blocking layer" by mixing the extraction liquid with ethanol, and the ethanol evaporation amount changes, the polysaccharide extraction begins; S2, polysaccharide isolation extraction stage: the polysaccharide of the "blocking layer" in step S1 is isolated from the surrounding liquid to complete the preliminary extraction; S3, polysaccharide discharge stage: the isolated "blocking layer" polysaccharide in step S2 is directly discharged to complete the extraction of polysaccharide.

[0027] A mushroom polysaccharide extraction device, comprising a box 1, a shell 2 communicated on one side of the box 1, a control end 5 electrically connected to the outer wall of the shell 2, a discharge port 3 fixedly communicated on the other side of the box 1, and a gas detector 4 connected with the control end 5 through a transmission line, further comprising an extraction structure slidingly arranged in the box 1 for continuously extracting polysaccharide, a driving structure arranged in the shell 2 for driving the extraction structure to lift and close, and a valve opening and closing assembly arranged on both sides of the discharge port 3, the bottom of the shell 2 is fixedly connected with a sensing plate 6 electrically connected with the shell 2, and the inner wall of the box 1 is provided with a lifting groove.

[0028] ​As an embodiment of the present application, the gas detector 4 continuously monitors the amount of ethanol volatilization in the box 1. When the extract is mixed with ethanol and reacts to form a polysaccharide "blocking layer", the "blocking layer" will hinder the further volatilization of ethanol, resulting in a significant decrease in the amount of ethanol volatilization sensed by the gas detector 4. The gas detector 4 immediately transmits this change signal to the control end 5 through the transmission line. After receiving the signal, the control end 5 starts the driving structure, which drives the extraction structure to extract the polysaccharide of the "blocking layer". Subsequently, while the extraction structure isolates the polysaccharide of the "blocking layer" on the extraction structure, the extraction structure triggers the valve opening and closing assembly to open. The surface of the extraction structure is inclined, and the just-extracted polysaccharide of the "blocking layer" itself is still in a flowing state due to the adsorption of ethanol. It is discharged from the discharge port 3 for subsequent polysaccharide processing work.

[0029] The extraction structure includes a first sliding plate 7 slidingly arranged in the lifting groove, shaft rods 901 arranged in an array and penetrating through the first sliding plate 7, a frame 8 fixedly connected to the other side of the first sliding plate 7, and extraction plates 9 arranged in an array and rotatably arranged on the frame 8. The extraction plates 9 are all sleeved on the shaft rods 901.

[0030] The extraction plates 9 are fixedly connected with second sliding plates 10 on both sides. The second sliding plates 10 are fixedly connected with a third sliding plate 13 on one side. The third sliding plate 13 is provided with a discharge groove. The outer wall of the third sliding plate 13 is fixedly connected with trigger blocks 1001 arranged in symmetry. The trigger blocks 1001 are used to drive the valve opening and closing assembly to open and close.

[0031] As an embodiment of the present application, the first sliding plate 7 descends along the lifting groove formed in the inner wall of the box 1. The descent of the first sliding plate 7 drives the frame 8 and the extraction plates 9 rotatably arranged on the frame 8 to descend together until the frame 8 is accurately positioned below the "blocking layer". When the first sliding plate 7 descends to touch the sensing plate 6 fixedly connected to the bottom of the shell 2, the sensing plate 6 immediately inputs a signal to the control end 5. After receiving the signal, the control end 5 quickly starts the driving structure. The driving structure starts to work, and its output end drives one of the shaft rods 901 to rotate. With the rotation of the shaft rod 901, the extraction plates 9 in the frame 8 start to rotate and close, accurately isolating the polysaccharide of the "blocking layer" on the extraction plates 9.

[0032] The driving structure includes lifting assemblies arranged in symmetry on the first sliding plate 7 for driving the first sliding plate 7 to ascend and descend, and driving assemblies for driving the extraction plates 9 to rotate and close. The lifting assemblies include first connecting pieces 17 fixedly connected to the inner wall of the shell 2, second connecting pieces 20 fixedly connected to the outer wall of the first sliding plate 7, and second connecting rods 19 rotatably arranged on the first connecting pieces 17 and the second connecting pieces 20, respectively. The connecting portions of the two second connecting rods 19 are fixedly connected with a driving piece 18. One end of the driving piece 18 is fixedly provided with a hydraulic device 11, and the hydraulic device 11 is fixedly connected to the inner wall of the shell 2.

[0033] As the embodiment, the control end 5 starts the hydraulic device 11 immediately after receiving the signal of the gas detector 4. The hydraulic device 11 starts to work and exerts traction force on the two second connecting rods 19 through the driving member 18. Since the second connecting rods 19 are respectively rotationally connected with the first connecting members 17 fixed on the inner wall of the shell 2 and the second connecting members 20 fixed on the outer wall of the first sliding plate 7, the second connecting rods 19 rotate under the action of the traction force, thereby driving the first sliding plate 7 to descend along the lifting groove formed in the inner wall of the box body 1. The descent of the first sliding plate 7 drives the frame 8 and the extraction plate 9 rotationally arranged on the frame 8 to descend together until the frame 8 is accurately positioned below the “occlusion layer”.

[0034] The driving assembly comprises an extension plate 701 fixedly connected to the outer wall of the first sliding plate 7, a motor 12 arranged on the extension plate 701, driving blocks 15 horizontally arranged in an array on the shaft rods 901, and first connecting rods 16 slidably connected to one end of the driving blocks 15. The output end of the motor 12 is fixedly connected with one of the shaft rods 901.

[0035] The motor 12 and the hydraulic device 11 are electrically connected with the control end 5 on the outer wall of the shell 2 through connecting wires to form a sensing and driving circuit. A limit switch for controlling the rotation angle of the output end of the motor 12 is arranged on the motor 12.

[0036] As the embodiment, the control end 5 starts the motor 12 immediately after receiving the signal. The motor 12 starts to work and drives one of the shaft rods 901 to rotate through the output end. Since the driving blocks 15 are arranged on the shaft rods 901 and the driving blocks 15 are slidably connected with the first connecting rods 16, the rotation of the shaft rod 901 synchronously drives the remaining shaft rods 901 to rotate through the driving blocks 15 and the first connecting rods 16. With the rotation of the shaft rods 901, the extraction plate 9 in the frame 8 starts to rotate and close, accurately isolating the polysaccharide of the “occlusion layer” on the extraction plate 9 (it should be noted that the limit switch arranged on the motor 12 is used to limit the rotation angle of the output end of the motor 12. When a certain angle is reached (such as when the extraction plate 9 is completely closed or vertically expanded), the limit switch will stop the rotation of the output end of the motor 12).

[0037] The valve port opening and closing assembly comprises a valve plate 301 rotationally arranged in the discharge port 3, limit cams 21 fixedly connected to the two main shafts of the valve plate 301, tooth frames 14 slidably engaged with the two main shafts of the valve plate 301, and limit rods 1401 arranged on the tooth frames 14 for assisting the limit cams 21 to limit the opening angle of the valve plate 301. One side of the tooth frame 14 is fixedly connected with a push rod 22, one end of the push rod 22 penetrates through the box body 1 and is located in the lifting groove, and one end of the push rod 22 is in extrusion contact with the trigger block 1001.

[0038] A spring 23 is sleeved on the push rod 22, and two ends of the spring 23 are connected with the outer wall of the box body 1 and the outer wall of the tooth frame 14 respectively.

[0039] As the "occlusive layer" polysaccharide is successfully isolated on the extraction plate 9, since the surface of the extraction plate 9 is designed to be inclined, this is beneficial to the smooth discharge of the polysaccharide. At the same time, with the synchronous downward movement of the second sliding plate 10 during the downward movement of the first sliding plate 7, the trigger block 1001 on the second sliding plate 10 begins to extrude the push rod 22. After the push rod 22 is extruded, the tooth frame 14 fixedly connected with the push rod 22 moves. During the movement of the tooth frame 14, the tooth frame 14 meshes with the gear on the two sides of the main shaft of the valve plate 301, so that the main shaft of the valve plate 301 is driven to rotate. Under the driving of the main shaft, the valve plate 301 begins to rotate and releases the closed state of the discharge port 3. At this time, the "occlusive layer" polysaccharide isolated on the extraction plate 9 flows into the discharge port 3 for discharge under the action of the inclined design of the surface of the extraction plate 9. In addition, a spring 23 is sleeved on the push rod 22, and two ends of the spring 23 are connected with the outer wall of the box body 1 and the outer wall of the tooth frame 14 respectively. When the trigger block 1001 no longer extrudes the push rod 22, the elastic restoring force of the spring 23 will push the tooth frame 14 to reset, thereby driving the valve plate 301 to re-close the discharge port 3.

[0040] Working principle: when the mushroom polysaccharide extraction device is used, first of all, the gas detector 4 begins to continuously detect the amount of ethanol volatilization in the box body 1. During the extraction process, the extraction liquid and ethanol are mixed and react in the box body 1, and gradually form a polysaccharide "occlusive layer". When the "occlusive layer" is formed, it will hinder the further volatilization of ethanol, resulting in a significant decrease in the amount of ethanol volatilization sensed by the gas detector 4, and the gas detector 4 immediately transmits this change signal to the control end 5 through the transmission line. After receiving the signal, the control end 5 starts the driving structure. The driving structure is divided into a lifting assembly and a driving assembly; The lifting assembly begins to work, the control end 5 starts the hydraulic device 11, and the hydraulic device 11 applies a traction force to the two second connecting rods 19 through the driving piece 18. Since the second connecting rods 19 are respectively rotationally connected with the first connecting piece 17 fixed on the inner wall of the shell 2 and the second connecting piece 20 fixed on the outer wall of the first sliding plate 7, under the action of the traction force, the second connecting rods 19 rotate, thereby driving the first sliding plate 7 to descend along the lifting groove formed in the inner wall of the box body 1. The descent of the first sliding plate 7 drives the frame 8 and the extraction plate 9 rotationally arranged on the frame 8 to descend together until the frame 8 is accurately placed below the "occlusive layer"; When the first slide plate 7 descends to touch the sensing plate 6 fixedly connected to the bottom of the shell 2, the sensing plate 6 immediately inputs a signal to the control end 5. After the control end 5 receives the signal, the driving assembly is quickly started. The driving assembly starts to work, the control end 5 starts the motor 12, the output end of the motor 12 drives one of the shaft rods 901 to rotate. Since the driving block 15 is sleeved on the shaft rod 901 and the driving block 15 is in sliding connection with the first connecting rod 16, the rotation of the shaft rod 901 synchronously drives the remaining shaft rods 901 to rotate through the driving block 15 and the first connecting rod 16. With the rotation of the shaft rod 901, the extraction plate 9 in the frame 8 starts to rotate and close, accurately isolating the polysaccharide of the “occlusive layer” on the extraction plate 9; At the same time, with the rotation and closing of the extraction plate 9, the second slide plate 10 also moves downward synchronously with the descent of the first slide plate 7, and the trigger block 1001 on the second slide plate 10 starts to extrude the push rod 22. After the push rod 22 is extruded, it drives the tooth frame 14 fixedly connected thereto to move. In the moving process, the tooth frame 14 is in meshing with the gear on the main shaft of the valve plate 301, thereby driving the main shaft of the valve plate 301 to rotate. Under the driving of the main shaft, the valve plate 301 starts to rotate and releases the closed state of the discharge port 3. Since the surface of the extraction plate 9 is designed to be inclined, and the just-extracted polysaccharide of the “occlusive layer” itself keeps a flowing state due to the adsorption of ethanol, the polysaccharide will flow along the inclined surface of the extraction plate 9 into the discharge port 3 and be discharged through the discharge port 3 for subsequent polysaccharide processing work. When the extraction process is completed, the trigger block 1001 no longer extrudes the push rod 22. At this time, the elastic restoring force of the spring 23 sleeved on the push rod 22 will push the tooth frame 14 to reset, thereby driving the valve plate 301 to re-close the discharge port 3. At the same time, the motor 12 drives the shaft rod 901 to reset through the set limit switch, so that the extraction plate 9 returns to the original position, ready for the next polysaccharide extraction work.

[0041] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace part of the technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made shall be included in the protection scope of the present application.

Claims

1. A method for extracting mushroom polysaccharides, characterized in that, It comprises the following steps: S1, gas detection stage: when the extract is mixed with ethanol to form a "blocking layer" of polysaccharide, and the amount of ethanol volatilization changes, the polysaccharide extraction begins; S2, polysaccharide isolation extraction stage: the polysaccharide in the "blocking layer" in step S1 is isolated from the surrounding liquid, and the preliminary extraction is completed; S3, polysaccharide discharge stage: the isolated "blocking layer" polysaccharide in step S2 is directly discharged, and the polysaccharide extraction is completed.

2. A mushroom polysaccharide extraction device, which is suitable for the mushroom polysaccharide extraction method of claim 1, comprising a box (1), a shell (2) communicated on one side of the box (1), a control end (5) electrically connected to the outer wall of the shell (2), a discharge port (3) fixedly communicated on the other side of the box (1), and a gas detector (4) sensing connected with the control end (5) through a transmission line, characterized in that: It also includes an extraction structure slidingly arranged in the box (1) for continuous extraction of polysaccharide, a driving structure arranged in the shell (2) for driving the extraction structure to lift and close, and a valve opening and closing assembly arranged on both sides of the discharge port (3), the bottom of the shell (2) is fixedly connected with the sensing plate (6) which is electrically connected with the shell (2), and the inner wall of the box (1) is provided with a lifting groove. ​ 3. The mushroom polysaccharide extraction device according to claim 2, characterized in that: The extraction structure comprises a first sliding plate (7) slidingly arranged in the lifting groove, a shaft (901) arrayed and penetrating through the first sliding plate (7), and a frame (8) fixedly connected on the other side of the first sliding plate (7), the frame (8) is rotatably provided with an arrayed extraction plate (9), and the extraction plate (9) is sleeved on the shaft (901).

4. The mushroom polysaccharide extraction device according to claim 3, characterized in that: The two sides of the extraction plate (9) are fixedly connected with the second sliding plate (10), one side of the second sliding plate (10) is fixedly connected with the third sliding plate (13), the third sliding plate (13) is provided with a discharge groove, and the outer wall of the third sliding plate (13) is fixedly connected with the trigger block (1001) which is symmetrically distributed and used for driving the valve opening and closing assembly to open and close.

5. The mushroom polysaccharide extraction device according to claim 3, characterized in that: The driving structure comprises a lifting assembly symmetrically arranged on the first sliding plate (7) for driving the first sliding plate (7) to lift, and a driving assembly for driving the extraction plate (9) to rotate and close, the lifting assembly comprises a first connecting piece (17) fixedly connected with the inner wall of the shell (2), a second connecting piece (20) fixedly connected with the outer wall of the first sliding plate (7), and a second connecting rod (19) rotatably arranged on the first connecting piece (17) and the second connecting piece (20) respectively, the connecting portions of the two second connecting rods (19) are fixedly connected with a driving piece (18), one end of the driving piece (18) is fixedly provided with a hydraulic device (11), and the hydraulic device (11) is fixedly connected with the inner wall of the shell (2).

6. The mushroom polysaccharide extraction device according to claim 5, characterized in that: The driving assembly comprises an extension plate (701) fixedly connected with the outer wall of the first sliding plate (7), a motor (12) arranged on the extension plate (701), a driving block (15) horizontally arrayed and sleeved on the shaft (901), and a first connecting rod (16) slidably connected with one end of the driving block (15), and the output end of the motor (12) is fixedly connected with one of the shafts (901).

7. The mushroom polysaccharide extraction device according to claim 6, characterized in that: The motor (12) and the hydraulic device (11) are electrically connected with the control end (5) of the outer wall of the shell (2) through connecting wires to form a sensing and driving circuit, and a limit switch is arranged on the motor (12) for controlling the rotation angle of the output end of the motor (12).

8. The mushroom polysaccharide extraction device according to claim 2, characterized in that: The valve port opening and closing assembly comprises a valve plate (301) rotatably arranged in the discharge port (3), a limiting cam (21) fixedly connected to the two side main shafts of the valve plate (301), a toothed frame (14) slidingly engaged with the two side main shafts of the valve plate (301), and a limiting rod (1401) arranged on the toothed frame (14) and used for assisting the limiting cam (21) in limiting the opening angle of the valve plate (301), one side of the toothed frame (14) is fixedly connected with a push rod (22), one end of the push rod (22) penetrates through the box body (1) and is located in the lifting groove, and one end of the push rod (22) is in extrusion contact with a trigger block (1001).

9. The mushroom polysaccharide extraction device according to claim 8, characterized in that: A spring (23) is sleeved on the push rod (22), and the two ends of the spring (23) are connected with the outer wall of the box body (1) and the outer wall of the toothed frame (14) respectively.

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