An extraction device for plant polysaccharides

Abstract

The utility model discloses a kind of extraction devices of plant polysaccharide, including electric heating extraction tank, filter cartridge, lifting cover plate, stirring transmission mechanism and extrusion mechanism, electric heating extraction tank top is driven lifting cover plate lifting by hydraulic cylinder, lifting cover plate below is equipped with detachably installed filter cartridge, filter cartridge is limited by groove, fixed peg and slide bolt to realize cooperation, filter cartridge bottom is equipped with stirring shaft, with the automatic docking of stirring transmission mechanism below isolation plate to realize stirring, extrusion mechanism is arranged in lifting cover plate inside for the extrusion of residue in filter cartridge after extraction;The device can improve the sealing installation precision of filter cartridge, ensure the efficient docking between stirring shaft and power mechanism, improve stirring stability and extraction efficiency, while effectively extruding residue, improve solution recovery rate, convenient operation, compact structure, suitable for polysaccharide active ingredient high-efficiency extraction and residual liquid utilization.

Description

Technical Field

[0001] This utility model belongs to the field of plant extraction technology, specifically relating to an extraction device for plant polysaccharides. Background Technology

[0002] Plant polysaccharides, as natural products, are widely found in medicinal herbs, fruits, vegetables, and other plants. They possess excellent biological activity and have broad application prospects in the food, pharmaceutical, and cosmetic fields. Currently, the main extraction method for polysaccharides is water extraction followed by alcohol precipitation, which typically requires multiple steps such as crushing, heating, stirring, filtering, and concentration of the plant raw materials. To improve extraction efficiency and reduce energy consumption, existing technologies often employ extraction tank devices with heating and stirring functions.

[0003] However, existing plant polysaccharide extraction equipment still has many shortcomings in terms of structural and functional coordination. On the one hand, the sealing connection structure between the filter cartridge and the extraction tank is relatively simple, often relying on manual tightening or external clips for fixation. This can easily lead to leakage during the heating and extraction process due to improper installation or inadequate sealing, affecting equipment safety and extraction efficiency. On the other hand, the transmission structure of the stirring shaft is mostly a rigid connection, lacking adaptation and correction mechanisms. When there is a deviation in the engagement angle, it cannot be effectively aligned, and in severe cases, it may even cause parts to jam or be damaged, affecting the continuity of the extraction process and the lifespan of the equipment.

[0004] In addition, the existing equipment has an imperfect design for the waste residue treatment process after extraction. It often relies on manual pouring or gravity-based natural drip filtration, which cannot effectively recover the residual polysaccharide solution and is not conducive to the rapid dehydration and transfer of waste residue, resulting in resource waste and cumbersome operation. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide an improved extraction device for plant polysaccharides, which can achieve a reasonable structure, reliable coordination, convenient operation and high extraction efficiency to solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An extraction device for plant polysaccharides includes an electrically heated extraction tank. Hydraulic cylinders are vertically arranged on both sides of the electrically heated extraction tank. The output shafts of the two hydraulic cylinders are connected to the same lifting cover plate, which seals the top opening of the electrically heated extraction tank.

[0007] An isolation plate is installed at the bottom of the interior of the electrically heated extraction tank, and a stirring transmission mechanism is installed at the center of the isolation plate.

[0008] A filter cylinder is installed on the lower surface of the lifting cover plate. The top of the filter cylinder is open, and a lip is provided on the outer side of the top of the filter cylinder. A stirring shaft is rotatably installed at the center of the lower surface of the filter cylinder.

[0009] The surface of the lifting cover plate is provided with an installation groove with the same diameter as the lip. Both sides of the installation groove are provided with sliding grooves. The lip is slidably disposed between the two sliding grooves. After the filter cartridge is installed, it coincides with the axis of the electrically heated extraction tank.

[0010] The mounting groove has two fixing bolts symmetrically arranged on the rear side of its surface, which limit the rear side of the lip. The mounting groove has two sliding holes symmetrically arranged on the front side of its surface, and two sliding bolts are slidably installed in each of the two sliding holes. The two sliding bolts limit the front side of the lip, and a connecting plate is provided on the top of each of the two sliding bolts.

[0011] The top of the stirring shaft is uniformly provided with stirring rods, and the lower end face of the stirring shaft is provided with polygonal mating holes.

[0012] The stirring transmission mechanism includes a motor located at the center of the bottom of the isolation plate. The output end of the motor is provided with a main shaft, which passes through the isolation plate. Grooves are symmetrically formed on the upper surface of the main shaft, and a sliding sleeve is slidably installed on the top of the main shaft.

[0013] The sliding sleeve has symmetrically arranged protrusions that match the groove inside. The protrusions slide within the groove. The top of the sliding sleeve has a polygonal mating post that matches the internal dimensions of the polygonal mating hole.

[0014] A spring is fitted onto the surface of the spindle, and the spring is located below the sliding sleeve.

[0015] The surface of the lifting cover is equipped with a squeezing mechanism, which is used to squeeze the residue inside the filter cartridge after extraction.

[0016] Furthermore, a mounting box is horizontally arranged at the center of the upper surface of the lifting cover, and a storage cavity is opened at the center of the lower surface of the lifting cover, the storage cavity communicating with the mounting box; the extrusion mechanism includes a bidirectional screw horizontally rotatably installed in the mounting box and a pressure plate disposed in the storage cavity.

[0017] Furthermore, two sliders are symmetrically slidably installed inside the mounting box, and the two sliders are respectively screwed to different thread surfaces of the bidirectional screw; the bottom of each slider is hinged to a connecting rod, and the end of each connecting rod away from the slider is hinged to the upper surface of the pressure plate, and the pressure plate is adapted to the inner diameter of the filter cartridge.

[0018] Furthermore, the bottom of the electrically heated extraction tank is provided with a base, and the bottom of the electrically heated extraction tank is connected to an outlet pipe.

[0019] Compared with the prior art, the beneficial effects of this utility model are: This invention features a lifting cover plate on which a filter cartridge and a sliding limiting structure are installed. This allows the lip of the filter cartridge to slide into the mounting groove, where it is limited by a front sliding bolt and a rear fixing bolt, ensuring the filter cartridge aligns with the axis of the electrically heated extraction tank after installation. The lifting cover plate then seals the top opening of the electrically heated extraction tank, reducing sealing issues caused by misalignment of the filter cartridge installation position.

[0020] This invention incorporates a main shaft, a sliding sleeve, and a multi-faceted mating structure within a stirring transmission mechanism. A spring, along with mating grooves and protrusions, allows the sliding sleeve to slide axially along the main shaft and rotate with it. When there is an angular deviation between the multi-faceted mating post and the multi-faceted mating hole, the sliding sleeve is pressed downwards. After the sliding sleeve rotates with the main shaft to a suitable angle, the spring pushes the sliding sleeve upwards, causing the multi-faceted mating post to enter the multi-faceted mating hole, thus completing the mating between the stirring transmission mechanism and the stirring shaft.

[0021] This utility model sets up a storage cavity and an installation box on the lifting cover plate, and forms a squeezing mechanism by means of a bidirectional screw, a slider, a connecting rod and a pressure plate. After extraction, the pressure plate can enter the filter cylinder to squeeze the residue inside the filter cylinder, so as to squeeze out the residual liquid in the residue and compress the volume of the residue for subsequent processing. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic cross-sectional view of the filter cartridge and lifting cover plate of this utility model; Figure 4 This is a schematic diagram of the installation structure of the filter cartridge and lifting cover plate of this utility model; Figure 5 This is a schematic diagram of the parabolic structure of the isolation plate and stirring transmission mechanism of this utility model; Figure 6 This is a bottom view schematic diagram of the lifting cover structure of this utility model.

[0023] The components represented by each number in the attached diagram are listed below: 1. Electric heating extraction tank; 11. Base; 12. Liquid outlet pipe; 13. Hydraulic cylinder; 14. Isolation plate; 2. Stirring transmission mechanism; 21. Motor; 22. Main shaft; 221. Groove; 23. Spring; 24. Sliding sleeve; 25. Multi-faceted connecting column; 3. Filter cartridge; 31. Lip edge; 4. Stirring shaft; 41. Multi-faceted butt joint hole; 5. Lifting cover; 51. Mounting groove; 52. Slide groove; 53. Fixing bolt; 54. Sliding hole; 55. Mounting box; 56. Storage cavity; 6. Extrusion mechanism; 61. Bidirectional screw; 62. Slider; 63. Connecting rod; 64. Pressure plate; 7. Sliding bolt. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] See Figures 1 to 6 An extraction apparatus for plant polysaccharides includes an electrically heated extraction tank 1. The electrically heated extraction tank 1 has a hollow structure and is used for heating extraction operations. A heating device is installed inside the tank wall of the electrically heated extraction tank 1 to maintain the temperature required for the extraction process.

[0026] Hydraulic cylinders 13 are vertically installed on both sides of the electrically heated extraction tank 1. The output shafts of both hydraulic cylinders 13 are connected to the same lifting cover plate 5, enabling the two hydraulic cylinders 13 to jointly drive the lifting cover plate 5 to rise and fall. The lifting cover plate 5 has a horizontal plate structure with reinforcing ribs on its edges to increase its rigidity and stability. When the lifting cover plate 5 is lowered, it can seal the top opening of the electrically heated extraction tank 1. When the lifting cover plate 5 is raised, it can drive the filter cartridge 3 away from the electrically heated extraction tank 1.

[0027] An isolation plate 14 is installed at the bottom of the interior of the electrically heated extraction tank 1, which separates the extraction chamber from the drive chamber. A stirring transmission mechanism 2 is installed at the center of the isolation plate 14, which provides rotational power to the stirring shaft 4.

[0028] A filter cylinder 3 is installed on the lower surface of the lifting cover plate 5. The filter cylinder 3 is a cylindrical structure with an open top, and a lip 31 is provided on the outer side of the top of the filter cylinder 3. A stirring shaft 4 is rotatably installed at the center of the lower surface of the filter cylinder 3, and multiple stirring rods are evenly arranged on the top of the stirring shaft 4.

[0029] See Figure 4 and Figure 6The surface of the lifting cover plate 5 has a mounting groove 51 with the same diameter as the lip 31. The mounting groove 51 is used to accommodate and position the lip 31 of the filter cartridge 3. Sliding grooves 52 are provided on both sides of the mounting groove 51. The lip 31 is slidably positioned between the two sliding grooves 52, allowing the filter cartridge 3 to be installed on the lifting cover plate 5 through the engagement of the lip 31 and the sliding grooves 52. After installation, the filter cartridge 3 is aligned with the axis of the electrically heated extraction tank 1.

[0030] Two fixing bolts 53 are symmetrically arranged on the rear side of the surface of the mounting groove 51, which limit the rear side of the lip 31. Two sliding holes 54 are symmetrically opened on the front side of the surface of the mounting groove 51, and two sliding bolts 7 are slidably installed in each of the two sliding holes 54, which limit the front side of the lip 31. A connecting plate is provided on the top of the two sliding bolts 7, which is used to drive the two sliding bolts 7 to move together, facilitating the installation and removal of the filter cartridge 3.

[0031] After the filter cartridge 3 is installed in place, the lip 31 is located between the two sliding grooves 52. The fixing bolt 53 limits the rear side of the lip 31, and the sliding bolt 7 limits the front side of the lip 31, so that the filter cartridge 3 is kept below the lifting cover plate 5.

[0032] See Figure 2 , Figure 3 and Figure 5 The lower end face of the stirring shaft 4 is provided with a polygonal mating hole 41. The stirring transmission mechanism 2 includes a motor 21 located at the bottom center of the partition plate 14. The output end of the motor 21 is provided with a main shaft 22, which passes through the partition plate 14. Grooves 221 are symmetrically provided on the upper surface of the main shaft 22, and a sliding sleeve 24 is slidably installed on the top of the main shaft 22.

[0033] The sliding sleeve 24 has symmetrically arranged protrusions that match the groove 221 inside, and the protrusions slide within the groove 221. Through the cooperation between the groove 221 and the protrusions, the sliding sleeve 24 can slide along the axis of the main shaft 22 and rotate synchronously with the main shaft 22.

[0034] The top of the sliding sleeve 24 is provided with a polygonal mating post 25, which is adapted to the internal dimensions of the polygonal mating hole 41. A spring 23 is sleeved on the surface of the spindle 22, and the spring 23 is located below the sliding sleeve 24. The spring 23 can apply an upward force to the sliding sleeve 24, so that the sliding sleeve 24 tends to move in the direction of the polygonal mating hole 41.

[0035] When the filter cartridge 3 moves downward with the lifting cover plate 5, and the angle of the multi-faceted docking post 25 matches the angle of the multi-faceted docking hole 41, the multi-faceted docking post 25 enters the multi-faceted docking hole 41, so that the stirring transmission mechanism 2 and the stirring shaft 4 form a transmission cooperation.

[0036] When there is an angular deviation between the polygonal docking post 25 and the polygonal docking hole 41, the lower end of the stirring shaft 4 applies a downward force to the polygonal docking post 25, causing the sliding sleeve 24 to move downward along the main shaft 22 and compress the spring 23. After the motor 21 is started, the main shaft 22 drives the sliding sleeve 24 to rotate through the cooperation of the groove 221 and the convex strip; when the polygonal docking post 25 rotates to an angle that matches the polygonal docking hole 41, the spring 23 pushes the sliding sleeve 24 to move upward along the main shaft 22, so that the polygonal docking post 25 enters the polygonal docking hole 41, thereby completing the docking between the stirring transmission mechanism 2 and the stirring shaft 4.

[0037] See Figure 2 and Figure 3 A mounting box 55 is horizontally arranged at the center of the upper surface of the lifting cover plate 5, and a storage cavity 56 is opened at the center of the lower surface of the lifting cover plate 5, which communicates with the mounting box 55. The extrusion mechanism 6 includes a bidirectional screw 61 horizontally rotatably installed in the mounting box 55 and a pressure plate 64 disposed in the storage cavity 56.

[0038] Two sliders 62 are symmetrically slidably installed inside the mounting box 55. The two sliders 62 are respectively screwed into different threaded surfaces of the bidirectional screw 61. The bottom of each slider 62 is hinged to a connecting rod 63. The ends of the two connecting rods 63 opposite to the sliders 62 are hinged to the upper surface of the pressure plate 64. The pressure plate 64 is adapted to the inner diameter of the filter cartridge 3.

[0039] When the bidirectional screw 61 is rotated, the two sliders 62 can move closer to or further apart along the bidirectional screw 61. When the two sliders 62 move closer to each other, they push the pressure plate 64 downward through the connecting rod 63, causing the pressure plate 64 to enter the filter cartridge 3. When the two sliders 62 move further apart, they drive the pressure plate 64 upward through the connecting rod 63, causing the pressure plate 64 to enter the receiving cavity 56.

[0040] See Figure 1 The bottom of the electrically heated extraction tank 1 is provided with a base 11, which is used to support the electrically heated extraction tank 1. The bottom of the electrically heated extraction tank 1 is connected to a liquid outlet pipe 12, through which the extracted liquid can be discharged.

[0041] The working process of this utility model is as follows: In use, first control the hydraulic cylinder 13 to drive the lifting cover plate 5 upward, so that the lifting cover plate 5 leaves the electric heating extraction tank 1. Put the crushed plant material into the filter cylinder 3, and then install the filter cylinder 3 below the lifting cover plate 5, so that the lip 31 slides into the two slide grooves 52.

[0042] After the filter cartridge 3 is installed in place, the fixing bolt 53 limits the rear side of the lip 31. The connecting plate drives the two sliding bolts 7 to move in the sliding hole 54, so that the two sliding bolts 7 limit the front side of the lip 31, thereby completing the installation between the filter cartridge 3 and the lifting cover plate 5.

[0043] Then, control the two hydraulic cylinders 13 to drive the same lifting cover 5 to move downward, so that the filter cartridge 3 enters the electric heating extraction tank 1 and the lifting cover 5 covers the top opening of the electric heating extraction tank 1.

[0044] As the filter cartridge 3 moves downward, when the angle of the polygonal mating post 25 matches that of the polygonal mating hole 41, the polygonal mating post 25 enters the polygonal mating hole 41. When there is a deviation in their angles, the lower end of the stirring shaft 4 presses the polygonal mating post 25 and the sliding sleeve 24 downward, compressing the spring 23.

[0045] The motor 21 is started, and the motor 21 drives the sliding sleeve 24 and the polygonal docking post 25 to rotate via the main shaft 22. When the polygonal docking post 25 rotates to an angle that matches the polygonal docking hole 41, the spring 23 pushes the sliding sleeve 24 upward, so that the polygonal docking post 25 enters the polygonal docking hole 41. The motor 21 continues to work, driving the stirring shaft 4 to rotate via the main shaft 22, the sliding sleeve 24 and the polygonal docking post 25, so that the stirring rod on the stirring shaft 4 stirs the plant material inside the filter cylinder 3.

[0046] After extraction, the hydraulic cylinder 13 is controlled to move the lifting cover plate 5 upward, so that the filter cartridge 3 leaves the electric heating extraction tank 1 and is suspended above the electric heating extraction tank 1, so that the liquid in the filter cartridge 3 flows downward.

[0047] Then, rotate the bidirectional screw 61 to bring the two sliders 62 closer to each other. The two sliders 62 push the pressure plate 64 downward through the connecting rod 63, so that the pressure plate 64 enters the filter cylinder 3 and squeezes the residue in the filter cylinder 3, squeezing out the liquid remaining in the residue.

[0048] After extrusion, the bidirectional screw 61 is rotated in the opposite direction, causing the two sliders 62 to move away from each other. The two sliders 62 drive the pressure plate 64 to move upward and enter the receiving cavity 56 via the connecting rod 63. Then, the connecting plate drives the two sliding bolts 7 to release the restriction on the front side of the lip 31, and the filter cartridge 3 is removed from the lifting cover plate 5 to facilitate the cleaning of the residue inside the filter cartridge 3.

[0049] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. An extraction apparatus for plant polysaccharides, comprising an electrically heated extraction tank (1), characterized in that: Hydraulic cylinders (13) are vertically arranged on both sides of the electric heating extraction tank (1). The output shafts of the two hydraulic cylinders (13) are connected to the same lifting cover plate (5). The lifting cover plate (5) seals the top opening of the electric heating extraction tank (1). An isolation plate (14) is provided at the bottom of the interior of the electric heating extraction tank (1), and a stirring transmission mechanism (2) is installed at the center of the isolation plate (14). A filter cylinder (3) is installed on the lower surface of the lifting cover plate (5). The top of the filter cylinder (3) is open. A lip (31) is provided on the outer side of the top of the filter cylinder (3). A stirring shaft (4) is rotatably installed at the center of the lower surface of the filter cylinder (3). The surface of the lifting cover plate (5) is provided with an installation groove (51) with the same diameter as the lip (31). The two sides of the installation groove (51) are provided with sliding grooves (52). The lip (31) is slidably disposed between the two sliding grooves (52). After the filter cartridge (3) is installed, it coincides with the axis of the electric heating extraction tank (1). Fixing bolts (53) are symmetrically arranged on the rear side of the surface of the mounting groove (51), and the two fixing bolts (53) limit the rear side of the lip (31); The mounting groove (51) has symmetrical sliding holes (54) on the front side of its surface. Each of the two sliding holes (54) has a sliding bolt (7) slidably installed in it. The two sliding bolts (7) limit the front side of the lip (31). The top of the two sliding bolts (7) is provided with a connecting plate. The top of the stirring shaft (4) is uniformly provided with stirring rods, and the lower end face of the stirring shaft (4) is provided with polygonal docking holes (41). The stirring transmission mechanism (2) includes a motor (21) located at the bottom center of the isolation plate (14). The output end of the motor (21) is provided with a main shaft (22). The main shaft (22) passes through the isolation plate (14). Grooves (221) are symmetrically opened on the upper surface of the main shaft (22). A sliding sleeve (24) is slidably installed on the top of the main shaft (22). The sliding sleeve (24) is symmetrically provided with protrusions that are adapted to the groove (221) inside. The protrusions slide in the groove (221). The top of the sliding sleeve (24) is provided with a polygonal mating post (25). The polygonal mating post (25) is adapted to the internal size of the polygonal mating hole (41). A spring (23) is fitted onto the surface of the main shaft (22), and the spring (23) is located below the sliding sleeve (24); The surface of the lifting cover plate (5) is equipped with a squeezing mechanism (6), which is used to squeeze the residue inside the filter cartridge (3) after extraction.

2. The plant polysaccharide extraction device according to claim 1, characterized in that: The upper surface of the lifting cover plate (5) is horizontally provided with an installation box (55), and the lower surface of the lifting cover plate (5) is provided with a storage cavity (56), which is connected to the installation box (55). The extrusion mechanism (6) includes a bidirectional screw (61) that is horizontally rotatably installed in the mounting box (55) and a pressure plate (64) that is disposed in the receiving cavity (56).

3. The plant polysaccharide extraction device according to claim 2, characterized in that: The mounting box (55) has two sliders (62) symmetrically slidably installed inside, and the two sliders (62) are respectively screwed into different thread surfaces of the bidirectional screw (61); Both sliders (62) are hinged to the bottom of a connecting rod (63), and the ends of the two connecting rods (63) away from the sliders (62) are hinged to the upper surface of the pressure plate (64), which is adapted to the inner diameter of the filter cartridge (3).

4. The plant polysaccharide extraction device according to claim 1, characterized in that: The bottom of the electric heating extraction tank (1) is provided with a base (11), and the bottom of the electric heating extraction tank (1) is connected to an outlet pipe (12).

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