Sterile closed type microbial polysaccharide extractor

Abstract

The utility model discloses a sterile closed type microbial polysaccharide extractor, and relates to the technical field of polysaccharide extraction. One side of the upper surface of the cover plate is rotationally connected with the sealing plate through a hinge; the guide blocks are fixed on the outer ring wall of the sealing plate at equal angles, and the guide blocks are arranged in sliding grooves in the inner ring wall of the extraction box in a sliding manner; the limiting blocks are slidably arranged in sliding grooves in the inner ring wall of the extraction box, screw rods are fixed to the lower sides of the limiting blocks, and the inner threaded pipe is rotationally connected to the inner bottom wall of the extraction box through a bearing; the plugging plate is arranged on the upper side of the sealing plate; fixing plates are fixed at the top ends of the positioning columns; the driving mechanism is connected with the plugging plate; a stirring pipe is fixed on an output shaft of the stirring motor; the stirring rod is movably inserted into the stirring pipe, a plurality of limiting strips are fixed on the outer ring wall of the stirring rod at equal angles, and the limiting strips are slidably arranged in sliding grooves in the inner ring wall of the stirring pipe; the interior of the extraction box can be in a closed state, and the height of the sealing plate can be adjusted according to the pressure in the extraction box, so that the use condition in the extraction box is met.

Description

Technical Field

[0001] The utility model relates to the technical field of polysaccharide extraction, in particular to an aseptic closed microbial polysaccharide extractor. Background Art

[0002] Microbial polysaccharides are biopolymers that protect microorganisms. They are produced by bacteria, fungi, cyanobacteria and other microorganisms during metabolism. The production cycle of microbial polysaccharides is short and is not restricted by climate and geographical conditions. They can be produced using various waste residues and waste liquids under artificial control conditions. The structure of existing polysaccharide extraction equipment is mostly simple and cannot be kept in a closed state, so it is easily affected by different external fungi, thereby reducing the extraction effect. Utility Model Content

[0003] The purpose of the utility model is to provide a sterile closed microbial polysaccharide extractor with reasonable design and convenient use in view of the defects and shortcomings of the prior art, which can effectively solve the defects of the above-mentioned prior art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: it comprises an extraction box and a sealing plate, the extraction box is an upper open structure, a sealing plate is provided on the upper side of the extraction box, the outer peripheral wall of the sealing plate is arranged to conflict with the inner ring wall of the extraction box, a plurality of heating rods are fixed at equal angles on the inner bottom wall of the extraction box and the lower surface of the sealing plate, and the heating rods on the upper and lower sides are arranged in a staggered manner; it also comprises:

[0005] A cover plate, wherein the cover plate is embedded in the opening on one side of the sealing plate, and the lower sides of the walls around the cover plate are inclined toward the center, one side of the upper surface of the cover plate is screwed to the sealing plate through a hinge, and the outer peripheral wall of the cover plate is arranged to abut against the inner peripheral wall of the opening of the sealing plate;

[0006] Guide blocks, there are several guide blocks, and they are fixed on the outer ring wall of the sealing plate at equal angles, the guide blocks are slidably arranged in the slide groove on the inner ring wall of the extraction box, and the sealing gasket on the outer peripheral wall of the guide block abuts against the inner wall of the slide groove;

[0007] Limit blocks, there are several limit blocks, and they are slidably arranged in the slide groove on the inner ring wall of the extraction box one by one and are located at the lower side of the guide block. The sealing gasket on the outer side of the limit block is set in conflict with the slide groove. The lower side of the limit block is fixed with a screw rod, and the lower end of the screw rod is screwed with an internal threaded tube through a thread. The internal threaded tube is screwed on the inner bottom wall of the extraction box through a bearing. Several internal threaded tubes are connected by a synchronous wheel transmission assembly. After the twisting disk at the lower end of the internal threaded tube passes through the outer wall of the extraction box, it is exposed on the outside of the extraction box;

[0008] A blocking plate, wherein the blocking plate is arranged on the upper side of the sealing plate, and a through hole is provided on one side of the blocking plate, and the through hole is arranged in cooperation with the cover plate;

[0009] A positioning column, wherein the positioning column is fixed at the center of the upper surface of the sealing plate, the positioning column is inserted through the blocking plate, and a fixing plate is fixed to the top of the positioning column, and the fixing plate is set in conflict with the blocking plate;

[0010] A driving mechanism, wherein the driving mechanism is disposed in the fixing plate and connected to the blocking plate;

[0011] A stirring motor, wherein the stirring motor is embedded in the sealing plate, the stirring motor is equipped with a battery, the upper side of the stirring motor is embedded in the positioning column, a stirring tube is fixed on the output shaft of the stirring motor, and the stirring tube passes through the lower side wall of the sealing plate through a sealed bearing and is exposed in the extraction box;

[0012] A stirring rod, wherein the stirring rod is movably inserted in the stirring tube, the lower end of the stirring rod is screwed to the inner bottom wall of the extraction box through a bearing, a plurality of limit strips are fixed at equal angles on the outer ring wall of the stirring rod, the limit strips are slidably arranged in a slide groove on the inner ring wall of the stirring tube, and a plurality of stirring blades are fixed at equal angles on the lower side of the stirring rod and the outer ring wall of the stirring tube;

[0013] Through the above technical scheme, the cover plate is opened to add materials. After the addition is completed, the sealing plate is driven to rotate by the driving mechanism according to the position of the material until the through hole on the sealing plate is located on the side of the sealing plate away from the cover plate, so that the cover plate is in a closed state, and the heating rod and the stirring motor are started. The stirring motor drives the stirring tube to rotate, and the stirring tube drives the stirring rod to rotate, so that the stirring rod and the stirring blades on the stirring tube rotate at the same time, so that the extract and the extract are fully mixed, thereby improving the extraction efficiency. Since the extraction box is in a closed state, when the pressure in the extraction box changes, the sealing plate can move up and down freely to achieve the effect of adjusting the pressure in the extraction box.

[0014] As a further improvement of the utility model, the driving mechanism comprises:

[0015] A drive motor, wherein the drive motor is fixed to one side of the upper surface of the fixing plate, the drive motor is connected to an external power source, and an output shaft of the drive motor is inserted into the fixing plate;

[0016] The linkage shafts are several in number, and the upper ends of the linkage shafts are inserted on the fixed plate at equal angles through bearings. The lower ends of the linkage shafts pass through the side wall of the blocking plate and are suspended in the arc groove on the blocking plate. The linkage shafts are movably arranged in the slide groove on the upper side wall of the arc groove. The several linkage shafts are connected by a synchronous wheel transmission assembly, and one of the linkage shafts is fixedly connected to the output shaft of the driving motor;

[0017] Gears, there are several gears, and they are fixed on the lower end of the linkage shaft in a one-to-one correspondence. The gears are located in the arc groove, and several teeth are fixed on the inner wall of the arc groove at equal angles. The gears are meshed with the teeth;

[0018] Through the above technical solution, the drive motor is started, and the drive motor drives the linked shaft connected to it to rotate. The linked shaft drives several other linked shafts to rotate through the synchronous wheel transmission assembly. The linked shaft drives the gears at their lower ends to rotate, and the gears drive the sealing plate to rotate through the teeth.

[0019] As a further improvement of the utility model, a sealing ring is sleeved and fixed on the outer peripheral wall of the cover plate, and the outer peripheral wall of the sealing ring is arranged to conflict with the inner peripheral wall of the opening;

[0020] Through the above technical solution, the sealing effect between the cover plate and the sealing plate is increased.

[0021] As a further improvement of the utility model, a fixing frame is fixed to the lower end of the stirring tube, and the fixing frame is arranged in a "U" shape. The horizontal plate on the lower side of the fixing frame is sleeved on the stirring rod. The vertical plates of the fixing frame are all screwed with a No. 1 bevel gear through a bearing, and the upper and lower sides of the No. 1 bevel gear are meshed with a No. 2 bevel gear. The No. 2 bevel gear is respectively sleeved and fixed on the lower end of the stirring tube and the sleeve. The sleeve is screwed on the horizontal plate on the lower side of the fixing frame through a bearing, and the sleeve is sleeved on the stirring rod, and the slide groove on the inner wall of the sleeve is movably sleeved on the stirring rod;

[0022] Through the above technical solution, when the stirring tube rotates, it drives the No. 2 bevel gear on it to rotate, and the No. 2 bevel gear drives the No. 2 bevel gear on the lower side to rotate through the No. 1 bevel gear, and the No. 2 bevel gear drives the stirring rod to rotate. The stirring rod and the stirring tube rotate in opposite directions, thereby improving the stirring effect.

[0023] As a further improvement of the utility model, the lower sides of the two side walls of the through hole are inclined toward the center;

[0024] Through the above technical solution, the blocking plate can improve the smoothness of rotation through the inclined surface during the rotation process.

[0025] Compared with the prior art, the beneficial effects of the utility model are as follows: the aseptic closed microbial polysaccharide extractor described in the utility model can make the interior of the extraction box airtight, and the sealing plate can be adjusted in height according to the pressure in the extraction box to meet the usage conditions in the extraction box. The utility model has the advantages of reasonable setting and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model.

[0027] Figure 2It is a schematic diagram of the internal structure of the utility model.

[0028] Figure 3 for Figure 2 Enlarged view of part A in the middle.

[0029] Figure 4 It is an exploded view of the driving mechanism, sealing plate, blocking plate and fixing plate in the utility model.

[0030] Description of reference numerals:

[0031] Extraction box 1, sealing plate 2, heating rod 3, cover plate 4, guide block 5, limit block 6, screw 7, internal threaded tube 8, blocking plate 9, through hole 9-1, arc groove 9-2, positioning column 10, fixing plate 11, driving mechanism 12, driving motor 12-1, stirring motor 13, linkage shaft 12-2, gear 12-3, teeth 12-4, stirring tube 14, stirring rod 15, limit strip 16, stirring blade 17, sealing ring 18, fixing frame 19, No. 1 bevel gear 20, No. 2 bevel gear 21, sleeve 22. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the accompanying drawings.

[0033] Embodiment 1:

[0034] like Figure 1-Figure 4 As shown, this embodiment includes an extraction box 1 and a sealing plate 2. The extraction box 1 is an open structure on the upper side. The sealing plate 2 is provided on the upper side of the extraction box 1. The outer peripheral wall of the sealing plate 2 is arranged to conflict with the inner ring wall of the extraction box 1. A plurality of heating rods 3 are fixed at equal angles by bolts on the inner bottom wall of the extraction box 1 and the lower surface of the sealing plate 2. The heating rods 3 on the upper and lower sides are arranged in a staggered manner. It also includes:

[0035] The cover plate 4 is embedded in the opening on the left side of the sealing plate 2, and the lower sides of the four walls of the cover plate 4 are inclined toward the center. The right side of the upper surface of the cover plate 4 is screwed to the sealing plate 2 through a hinge, and the outer peripheral wall of the cover plate 4 is set in conflict with the inner peripheral wall of the opening of the sealing plate 2; a sealing ring 18 is sleeved and fixed on the outer peripheral wall of the cover plate 4, and the outer peripheral wall of the sealing ring 18 is set in conflict with the inner peripheral wall of the opening, thereby increasing the sealing effect between the cover plate 4 and the sealing plate 2;

[0036] Guide blocks 5, there are several guide blocks 5, and they are welded and fixed on the outer ring wall of the sealing plate 2 at equal angles, the guide blocks 5 are slidably arranged in the slide groove on the inner ring wall of the extraction box 1, and the sealing gasket on the outer peripheral wall of the guide block 5 abuts against the inner wall of the slide groove;

[0037] Limiting blocks 6, there are several limiting blocks 6, and they are slidably arranged in the slide groove on the inner ring wall of the extraction box 1 and are located at the lower side of the guide block 5. The sealing gasket on the outer side of the limiting block 6 is set in conflict with the slide groove. The lower side of the limiting block 6 is welded and fixed with a screw rod 7, and the lower end of the screw rod 7 is screwed with an internal threaded tube 8 through a thread. The internal threaded tube 8 is screwed on the inner bottom wall of the extraction box 1 through a bearing. Several internal threaded tubes 8 are connected by a synchronous wheel transmission assembly. After the twisting disk at the lower end of the internal threaded tube 8 passes through the outer wall of the extraction box 1, it is exposed on the outside of the extraction box 1;

[0038] The blocking plate 9 is arranged on the upper side of the sealing plate 2, and a through hole 9-1 is arranged on the left side of the blocking plate 9, and the through hole 9-1 is arranged in cooperation with the cover plate 4; the lower sides of the two side walls of the through hole 9-1 are inclined toward the center, and the blocking plate 9 can improve the smoothness of the rotation through the inclined surface during the rotation process;

[0039] A positioning column 10, wherein the positioning column 10 is welded and fixed to the center of the upper surface of the sealing plate 2, the positioning column 10 is inserted through the blocking plate 9, and a fixing plate 11 is welded and fixed to the top of the positioning column 10, and the fixing plate 11 is set against the blocking plate 9;

[0040] A driving mechanism 12, wherein the driving mechanism 12 is disposed in the fixing plate 11, and the driving mechanism 12 is connected to the blocking plate 9;

[0041] A stirring motor 13, wherein the stirring motor 13 is embedded in the sealing plate 2, the stirring motor 13 is provided with a battery, the upper side of the stirring motor 13 is embedded in the positioning column 10, a stirring tube 14 is fixed on the output shaft of the stirring motor 13, and the stirring tube 14 passes through the lower side wall of the sealing plate 2 through a sealed bearing and is exposed in the extraction box 1;

[0042] A stirring rod 15 is movably inserted in the stirring tube 14, and the lower end of the stirring rod 15 is screwed on the inner bottom wall of the extraction box 1 through a bearing. Several limit bars 16 are welded and fixed at equal angles on the outer ring wall of the stirring rod 15. The limit bars 16 are slidably set in the slide groove on the inner ring wall of the stirring tube 14, and several stirring blades 17 are welded and fixed at equal angles on the lower side of the stirring rod 15 and the outer ring wall of the stirring tube 14.

[0043] Embodiment 2:

[0044] See also Figure 1-2 , Figure 4 As shown, based on Example 1, the driving mechanism 12 includes:

[0045] A drive motor 12-1, wherein the drive motor 12-1 is fixed to the right side of the upper surface of the fixing plate 11 by bolts, the drive motor 12-1 is connected to an external power source, and an output shaft of the drive motor 12-1 is inserted into the fixing plate 11;

[0046] Linkage shaft 12-2, there are several linkage shafts 12-2, and the upper ends thereof are inserted on the fixed plate 11 at equal angles through bearings, and the lower ends of the linkage shafts 12-2 are suspended in the arc groove 9-2 on the blocking plate 9 after passing through the upper side wall of the blocking plate 9, and the linkage shafts 12-2 are movably arranged in the slide groove on the upper side wall of the arc groove 9-2, and several linkage shafts 12-2 are connected by a synchronous wheel transmission assembly, and the linkage shaft 12-2 on the right side is fixedly connected to the output shaft of the drive motor 12-1;

[0047] Gear 12-3, there are several gears 12-3, and they are welded and fixed one by one on the lower end of the linkage shaft 12-2. The gear 12-3 is located in the arc groove 9-2, and several teeth 12-4 are welded and fixed at equal angles on the inner wall of the arc groove 9-2. The gear 12-3 is meshed with the teeth 12-4.

[0048] Embodiment 3:

[0049] See also Figure 2 , Figure 3 As shown, on the basis of Example 1, a fixing frame 19 is welded and fixed to the lower end of the stirring tube 14, and the fixing frame 19 is set in a "U" shape. The horizontal plate on the lower side of the fixing frame 19 is sleeved on the stirring rod 15, and the vertical plates of the fixing frame 19 are screwed with a No. 1 bevel gear 20 through a bearing, and the upper and lower sides of the No. 1 bevel gear 20 are meshed with a No. 2 bevel gear 21, and the No. 2 bevel gear 21 is respectively sleeved and fixed on the lower end of the stirring tube 14 and the sleeve 22, and the sleeve 22 is screwed on the horizontal plate on the lower side of the fixing frame 19 through a bearing, and the sleeve 22 is sleeved on the stirring rod 15, and the slide groove on the inner wall of the sleeve 22 is movably sleeved on the stirring rod 15.

[0050] When using the utility model, the cover plate 4 is opened to add materials. After the addition is completed, the driving motor 12-1 is started according to the position of the materials. The driving motor 12-1 drives the linked shaft 12-2 connected thereto to rotate. The linked shaft 12-2 drives several other linked shafts 12-2 to rotate through the synchronous wheel transmission assembly. The linked shafts 12-2 drive the gears 12-3 at their respective lower ends to rotate. The gears 12-3 drive the blocking plate 9 to rotate through the teeth 12-4 until the through hole 9-1 on the blocking plate 9 is located on the side of the sealing plate 2 away from the cover plate 4, so that the cover plate 4 is in a closed state. The heating rod 3 and the stirring motor 13 are started to stir. The motor 13 drives the stirring tube 14 to rotate, and the stirring tube 14 drives the stirring rod 15 to rotate, so that the stirring rod 15 and the stirring blades 17 on the stirring tube 14 rotate at the same time. When the stirring tube 14 rotates, it drives the No. 2 bevel gear 21 thereon to rotate, and the No. 2 bevel gear 21 drives the No. 2 bevel gear 21 on the lower side to rotate through the No. 1 bevel gear 20. The No. 2 bevel gear 21 drives the stirring rod 15 to rotate. The stirring rod 15 and the stirring tube 14 rotate in opposite directions, thereby improving the stirring effect. Since the extraction box 1 is in a closed state, when the pressure in the extraction box 1 changes, the sealing plate 2 can move up and down freely, thereby achieving the effect of adjusting the pressure in the extraction box 1.

[0051] Compared with the prior art, the beneficial effects of this specific implementation are as follows:

[0052] 1. The sealing plate 2 slides in the extraction box 1 through the guide block 5, and its downward position is limited by the limit block 6. When the pressure in the extraction box 1 increases, the sealing plate 2 can move upward freely, thereby adjusting the pressure in the extraction box 1;

[0053] 2. The cover plate 4 on the sealing plate 2 can be blocked by the blocking plate 9, so that the cover plate 4 can be blocked after the feeding is completed, thereby improving the sealing between the sealing plate 2 and the extraction box 1;

[0054] 3. The second bevel gear 21 provided on the stirring tube 14 and the stirring rod 15 are meshed with the first bevel gear 20, so that the stirring tube 14 and the stirring rod 15 rotate in opposite directions, thereby improving the stirring effect.

[0055] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A sterile closed microbial polysaccharide extractor, comprising an extraction box (1) and a sealing plate (2), wherein the extraction box (1) is an open-top structure, a sealing plate (2) is provided on the upper side of the extraction box (1), an outer peripheral wall of the sealing plate (2) is arranged to abut against an inner ring wall of the extraction box (1), a plurality of heating rods (3) are fixed at equal angles on the inner bottom wall of the extraction box (1) and the lower surface of the sealing plate (2), and the heating rods (3) on the upper and lower sides are arranged in a staggered manner; characterized in that: It also contains: A cover plate (4), the cover plate (4) being embedded in an opening on one side of the sealing plate (2), and the lower sides of the four walls of the cover plate (4) being inclined toward the center, one side of the upper surface of the cover plate (4) being screwed to the sealing plate (2) via a hinge, and the outer peripheral wall of the cover plate (4) being arranged to abut against the inner peripheral wall of the opening of the sealing plate (2); Guide blocks (5), the guide blocks (5) being multiple in number and fixed at equal angles on the outer ring wall of the sealing plate (2), the guide blocks (5) being slidably arranged in a slide groove on the inner ring wall of the extraction box (1), and the sealing gasket on the outer peripheral wall of the guide blocks (5) abutting against the inner wall of the slide groove; A limit block (6), wherein the limit blocks (6) are multiple and are slidably arranged one by one in a slide groove on the inner ring wall of the extraction box (1) and are located at the lower side of the guide block (5). The sealing gasket on the outer side of the limit block (6) is arranged to abut against the slide groove. A screw rod (7) is fixed on the lower side of each limit block (6). The lower end of each screw rod (7) is screwed with an internal threaded tube (8) through a thread. The internal threaded tube (8) is screwed on the inner bottom wall of the extraction box (1) through a bearing. The multiple internal threaded tubes (8) are connected through a synchronous wheel transmission assembly. After the twisting disk at the lower end of the internal threaded tube (8) passes through the outer wall of the extraction box (1), it is exposed on the outer side of the extraction box (1); A blocking plate (9), the blocking plate (9) being arranged on the upper side of the sealing plate (2), a through hole (9-1) being provided on one side of the blocking plate (9), the through hole (9-1) being arranged in coordination with the cover plate (4); A positioning column (10), wherein the positioning column (10) is fixed at the center of the upper surface of the sealing plate (2), the positioning column (10) is inserted through the sealing plate (9), and a fixing plate (11) is fixed to the top of the positioning column (10), and the fixing plate (11) is arranged to abut against the sealing plate (9); A driving mechanism (12), wherein the driving mechanism (12) is arranged in the fixing plate (11), and the driving mechanism (12) is connected to the blocking plate (9); A stirring motor (13), wherein the stirring motor (13) is embedded in the sealing plate (2), the stirring motor (13) is equipped with a battery, the upper side of the stirring motor (13) is embedded in the positioning column (10), a stirring tube (14) is fixed on the output shaft of the stirring motor (13), and the stirring tube (14) passes through the lower side wall of the sealing plate (2) through a sealed bearing and is exposed in the extraction box (1); A stirring rod (15), wherein the stirring rod (15) is movably inserted into the stirring tube (14), the lower end of the stirring rod (15) is screwed onto the inner bottom wall of the extraction box (1) via a bearing, a plurality of limit bars (16) are fixed at equal angles on the outer ring wall of the stirring rod (15), the limit bars (16) are slidably arranged in a slide groove on the inner ring wall of the stirring tube (14), and a plurality of stirring blades (17) are fixed at equal angles on the lower sides of the stirring rod (15) and the outer ring wall of the stirring tube (14).

2. The aseptic closed microbial polysaccharide extractor according to claim 1, characterized in that: The driving mechanism (12) comprises: A drive motor (12-1), wherein the drive motor (12-1) is fixed to one side of the upper surface of the fixing plate (11), the drive motor (12-1) is connected to an external power source, and an output shaft of the drive motor (12-1) is inserted into the fixing plate (11); A linkage shaft (12-2), wherein there are several linkage shafts (12-2), and the upper ends of the linkage shafts (12-2) are inserted into the fixed plate (11) at equal angles through bearings, and the lower ends of the linkage shafts (12-2) are suspended in the arc groove (9-2) on the blocking plate (9) after passing through the upper side wall of the blocking plate (9), and the linkage shaft (12-2) is movably arranged in the slide groove on the upper side wall of the arc groove (9-2), and the several linkage shafts (12-2) are connected by a synchronous wheel transmission assembly, and one of the linkage shafts (12-2) is fixedly connected to the output shaft of the drive motor (12-1); Gears (12-3), there are a plurality of gears (12-3), and the gears (12-3) are fixed one by one on the lower end of the linkage shaft (12-2), the gears (12-3) are located in the arc groove (9-2), a plurality of teeth (12-4) are fixed at equal angles on the inner wall of the arc groove (9-2), and the gears (12-3) are meshed with the teeth (12-4).

3. The aseptic closed microbial polysaccharide extractor according to claim 1, characterized in that: A sealing ring (18) is sleeved and fixed on the outer peripheral wall of the cover plate (4), and the outer peripheral wall of the sealing ring (18) is arranged to abut against the inner peripheral wall of the opening.

4. The aseptic closed microbial polysaccharide extractor according to claim 1, characterized in that: A fixing frame (19) is fixed to the lower end of the stirring tube (14). The fixing frame (19) is arranged in a "U" shape. The horizontal plate on the lower side of the fixing frame (19) is sleeved on the stirring rod (15). The vertical plates of the fixing frame (19) are both screwed with a first bevel gear (20) through a bearing. The upper and lower sides of the first bevel gear (20) are meshed with a second bevel gear (21). The second bevel gear (21) is respectively sleeved and fixed on the lower end of the stirring tube (14) and the sleeve (22). The sleeve (22) is screwed on the horizontal plate on the lower side of the fixing frame (19) through a bearing. The sleeve (22) is sleeved on the stirring rod (15), and the slide groove on the inner wall of the sleeve (22) is movably sleeved on the stirring rod (15).

5. The aseptic closed microbial polysaccharide extractor according to claim 1, characterized in that: The lower sides of the two side walls of the through hole (9-1) are arranged to be inclined towards the center.

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