Tea deep processing, extraction and separation device and method

Abstract

The invention discloses a tea deep processing, extraction and separation device and method, and belongs to the technical field of tea extraction. Comprising a tank body and a plurality of supporting frames fixed to the vertical end of the tank body, the interior of the tank body is hollow, a bottom baffle and a top baffle are fixedly arranged on the two vertical end faces of the tank body respectively, and the bottom baffle is located at the end close to the supporting frames. The separation channel is formed in the outer side surface of the inner extraction barrel and is communicated with the extraction cavity. The driving structure drives the feeding pipe to move towards the bearing plate, extraction water between the pressing plate and the bearing plate is promoted to reversely enter the feeding pipe, a small amount of tea attached to the inner wall of the feeding pipe is backwashed, and it is avoided that too much tea is attached to the inner wall of the feeding pipe, and the extraction quality of the tea is affected.

Description

Technical Field

[0001] The present invention relates to a device and method for deep processing and extraction separation of tea, belonging to the technical field of tea extraction. Background Art

[0002] Conventional tea extraction usually uses the water-boiling method to extract tea at high temperature. The extracted water contains a stronger tea aroma compared to the cold extraction method. However, when the conventional tea extraction equipment mixes tea and water and then passes them into the equipment for extraction, since most of them use pipeline transportation for tea, some tea will adhere to the pipeline during transportation, resulting in a decrease in the amount of tea entering the extraction stage. When the extraction water volume remains unchanged, it will lead to a decrease in the concentration of the extracted water after extraction, seriously affecting the extraction quality of tea. Summary of the Invention

[0003] The technical problem to be solved by the present invention is as follows: to provide a device and method for deep processing and extraction separation of tea, which solves the problem that in the prior art, some tea will adhere to the pipeline during transportation, resulting in a decrease in the amount of tea entering the extraction stage. When the extraction water volume remains unchanged, it will lead to a decrease in the concentration of the extracted water after extraction, seriously affecting the extraction quality of tea.

[0004] The technical problem to be solved by the present invention is achieved by the following technical solutions: A device for deep processing and extraction separation of tea includes a tank body and several support frames fixed at the vertical ends of the tank body. The inside of the tank body is hollow. Bottom baffles and top baffles are respectively fixedly arranged on the vertical end faces of the tank body. The bottom baffle is located at one end close to the support frame. It further includes: An inner extraction cylinder, which is arranged inside the tank body. The inside of the inner extraction cylinder is hollow to form an extraction cavity. A separation channel, which is opened on the outer side of the inner extraction cylinder. The separation channel communicates with the extraction cavity. A bearing plate, which is vertically slidably arranged in the extraction cavity. The connection between the bearing plate and the inner wall of the extraction cavity is sealed. A pressing plate, which is arranged on the side of the bearing plate away from the support frame. The pressing plate is vertically slidably arranged in the extraction cavity. The connection between the pressing plate and the inner wall of the extraction cavity is sealed. A feed pipe communicating with the space between the pressing plate and the bearing plate is fixedly arranged on the side of the pressing plate away from the bearing plate. A movable pipe, which is fixed on the side of the bearing plate away from the pressing plate, and the end of the movable pipe away from the bearing plate extends outside the tank body. Among them, a sealing structure capable of separating the movable pipe from the space between the pressing plate and the bearing plate is arranged at the connection between the movable pipe and the bearing plate. A shielding structure capable of closing the extraction cavity is arranged in the separation channel. A driving structure for pushing the pressing plate to slide vertically through the feed pipe is arranged on the pressing plate. A return spring is sleeved outside the movable pipe.

[0005] By adopting the above technical solution, in the initial state, the closed structure separates the bearing plate from the movable tube. After mixing tea leaves and water, it is introduced into the space between the bearing plate and the pressing plate through the feed pipe. At this time, since the bearing plate and the pressing plate are respectively sealed with the inner wall of the inner extraction cylinder, the tea water mixture cannot move further. At this time, water conducts the first soaking extraction on the tea leaves. After the extraction time arrives, the driving structure drives the feed pipe to move towards the bearing plate. At this time, due to the reduction of the space between the pressing plate and the bearing plate, the extraction water between the pressing plate and the bearing plate will reversely enter the interior of the feed pipe, thereby flushing a little tea leaves attached to the inner wall of the feed pipe and bringing the tea leaves into the space between the bearing plate and the pressing plate for extraction, avoiding excessive attachment of tea leaves to the inner wall of the feed pipe and affecting the extraction quality of the tea leaves.

[0006] During the process of the pressing plate moving towards the bearing plate, the tea leaves will be squeezed. At the same time, the bearing plate moves towards the direction away from the top baffle. When the bearing plate moves to the separation channel, the blocking structure is opened, so that the extraction water between the pressing plate and the bearing plate flows out of the inner extraction cylinder through the separation channel. And due to the pressure of the pressing plate and the bearing plate, the tea leaves still remain between the pressing plate and the bearing plate, achieving the purpose of quickly separating the tea leaves and the extraction water. Then the driving structure makes the pressing plate move away from the bearing plate through the feed pipe, and the bearing plate gradually resets under the elastic action of the return spring. At this time, new water can be injected between the pressing plate and the bearing plate through the feed pipe to conduct the secondary extraction on the tea leaves. The tea leaves can be further extracted after being slightly squeezed by the pressing plate and the bearing plate, which can further improve the extraction effect, so that the secondary extraction quality of the tea leaves is higher.

[0007] The present invention is further configured as: The closed structure includes: A communication channel is opened on the bearing plate. One end of the communication channel is communicated with the space between the pressing plate and the movable tube, and the other end of the communication channel is communicated with the movable tube. A closed cavity is opened in the bearing plate and communicated with the communication channel. There are two relatively arranged closing plates. The two closing plates are relatively slidably arranged in the closed cavity. The two closing plates abut against each other to close the communication channel. Magnetic attraction blocks are fixed on the opposite side surfaces of the two closing plates. An electromagnet is fixedly arranged on the end wall of the closed cavity opposite to the magnetic attraction block on the inner side. A closing spring is arranged between the opposite side surface of the closing plate and the inner side end wall of the closed cavity where the electromagnet is located. Wherein, only after the electromagnet is energized, it magnetically adsorbs the magnetic attraction block to separate the two closing plates.

[0008] By adopting the above technical solution, when it is necessary to seal the communication channel, the electromagnet is powered off, and the two closing plates abut against each other under the elastic action of the closing spring, thereby sealing the communication channel, preventing the tea leaves and water between the bearing plate and the pressing plate from flowing into the movable tube and achieving the closing effect. When it is necessary to discharge the tea leaves and water on the bearing plate, the electromagnet is powered on and adsorbs the magnetic block, so that the two closing plates are disengaged from abutting. At this time, the tea leaves and water enter the movable tube through the communication channel and are discharged, achieving the purpose of removing the tea leaves that have been extracted, enabling the extraction and separation equipment to perform the next batch of tea extraction operations.

[0009] The present invention is further configured as: The shielding structure includes: A flip sealing plate, one end of which is hinged to the opposite end wall of the separation channel, and the flip sealing plate flips along the hinged end in a direction away from the inner extraction cylinder. A filter plate, arranged on the side of the separation channel away from the flip sealing plate, and the filter plate is fixedly connected to the separation channel. Wherein, when the flip sealing plate is located in the separation channel, it seals the separation channel, and a driving motor power-connected to the hinge shaft of the flip sealing plate is fixedly arranged in the wall body of the separation channel.

[0010] By adopting the above technical solution, under normal conditions, the flip sealing plate closes the separation channel, making the extraction cavity sealed. When it is necessary to make the pressing plate move towards the bearing plate, the driving motor starts and drives the flip sealing plate to flip towards the outside of the separation channel. At this time, the flip sealing plate releases the sealing of the separation channel. When the bearing plate moves to the separation channel, the extraction water can flow through the filter plate to the outside of the inner extraction cylinder, and the tea leaves are intercepted and separated by the filter plate, achieving the purpose of separating the tea leaves and the extraction water.

[0011] The present invention is further configured as: The driving structure includes: A threaded sleeve, sleeved on the outside of the feed pipe, and the threaded sleeve is rotatably connected to the top baffle and is threadedly connected to the feed pipe. An adjusting motor, arranged on the side of the threaded sleeve, and a power output shaft is connected to the adjusting motor. Wherein, the output shaft and the threaded sleeve are power-connected through a set of gear pairs.

[0012] By adopting the above technical solution, after the adjusting motor starts, it drives the threaded sleeve to perform a fixed-axis rotation through the gear pair. At this time, since the threaded sleeve is threadedly connected to the feed pipe, and the feed pipe is fixed to the pressing plate and the pressing plate cannot rotate, under the action of the threaded structure, the feed pipe slides in the vertical direction, achieving the purpose of adjusting the relative position between the pressing plate and the bearing plate.

[0013] The present invention is further configured as follows: An outer extraction cylinder is provided inside the tank body and is located outside the inner extraction cylinder. The outer extraction cylinder is fixedly connected to the inner wall of the tank body through a connecting rod. The horizontal radial section of the inner extraction cylinder is polygonally arranged. The outer vertical edge of the inner extraction cylinder is in sliding contact with the inner wall of the outer extraction cylinder and the contact part is sealed. A plurality of drainage spaces are formed between the outer side surface of the inner extraction cylinder and the inner wall of the outer extraction cylinder. The plurality of drainage spaces are independent of each other. Rotating sleeves are fixedly provided at the vertical end parts of the inner extraction cylinder respectively. The rotating sleeves are rotatably connected to the inner wall of the outer extraction cylinder and the two rotating sleeves seal the vertical ends of the drainage spaces. A middle cavity communicating with the plurality of drainage spaces is opened in the rotating sleeve close to the bottom baffle. A plurality of temporary storage cavities communicating with the middle cavity are provided through the end of the outer extraction cylinder facing the bottom baffle. An external connection block is fixedly provided at the outer end part of the outer extraction cylinder facing the bottom baffle. The end part of the external connection block penetrates through the bottom baffle and extends to the outside of the tank body. A transfer pipeline communicating with the temporary storage cavity is fixedly provided on the external connection block.

[0014] The present invention is further configured as follows: A rotating motor is fixedly provided on the outer side surface of the outer extraction cylinder. A rotating gear is power-connected to the rotating motor. The rotating gear meshes with the outer side surface of the rotating sleeve close to the top baffle.

[0015] By adopting the above technical solution, when the middle cavity is aligned and communicated with the temporary storage cavity, the extraction water discharged through the separation channel first enters the drainage space, and then flows into the temporary storage cavity through the middle cavity for short-term storage. The extraction water stored in the temporary storage cavity can be directly transmitted to the external storage device through the transfer pipeline for long-term storage. When different types of tea are extracted each time, by starting the rotating motor to drive the rotating gear to rotate, the rotating sleeve rotates accordingly. The rotating sleeve drives the inner extraction cylinder to rotate through the connecting plate, so that the middle cavity on one side of the separation channel rotates and communicates with another temporary storage cavity without storing extraction water. At this time, other types of tea can be normally extracted, and the extraction water is stored in this temporary storage cavity in the short term, enabling the extraction and separation device to extract multiple types of tea and independently store their extraction water, improving the scope of use of the extraction and separation device.

[0016] The present invention is further configured as follows: The rotating sleeve close to the top baffle is hollow to form an airtight cavity. The airtight cavity is communicated with the drainage space. An expansion piece for sealing the airtight cavity is fixedly provided at the communication part between the airtight cavity and the drainage space. A connecting plate for fixedly connecting the inner extraction cylinder and the rotating sleeve is provided in the airtight cavity. An opening communicating with the airtight cavity is provided at the end of the extraction cavity facing the top baffle. A flexible sealing film for sealing the extraction cavity is fixedly provided at the opening of the extraction cavity.

[0017] By adopting the above technical solution, after the tea extraction process is completed and the extraction water is stored in the temporary storage cavity, the adjustment motor is started to drive the threaded sleeve to rotate, so that the feed pipe drives the pressing plate to move away from the bearing plate, and the pressing plate presses the flexible sealing film. At this time, the flexible sealing film undergoes elastic deformation and the space in the airtight cavity becomes smaller. Since the space in the airtight cavity becomes smaller, the air pressure in the airtight cavity rises and is higher than the air pressure in the drainage space. At this time, the expansion piece expands and deforms towards the drainage space under the pressure difference, so that the air pressure in the drainage space rises until the air pressure in the drainage space is the same as the air pressure in the airtight cavity. In this way, the extraction water can be in an environment higher than the atmospheric pressure, which is beneficial to slowing down the cooling rate of the extraction water and can slow down the volatilization of the tea aroma in the extraction water to the greatest extent.

[0018] The present invention is further provided that: a fixed rod is fixedly arranged in the feed pipe, and a disturbing plate extending along a spiral path in the axial direction of the feed pipe is rotatably arranged on the fixed rod.

[0019] By adopting the above technical solution, when the mixture of water and tea flows through the disturbing plate, due to the spiral structure of the disturbing plate, the disturbing plate itself rotates, so that the disturbing plate disturbs the mixture, further promoting the mixing of water and tea, making the tea fully contact with water, which is beneficial to the subsequent tea extraction process.

[0020] The present invention is further provided that: a first air guiding channel extending into the outer extraction cylinder is opened on one side of the extraction cavity close to the bottom baffle, a second air guiding channel extending into the outer extraction cylinder is opened in the wall body of the inner extraction cylinder facing the drainage space, one end of the second air guiding channel located in the outer extraction cylinder is communicated with one end of the first air guiding channel, the other end of the second air guiding channel away from the first air guiding channel is communicated with the drainage space, an elastic sealing sheet is relatively fixedly arranged at the communicating part of the first air guiding channel and the second air guiding channel, and the two elastic sealing sheets abut against each other to seal and separate the first air guiding channel and the second air guiding channel. A first release channel successively penetrating the outer extraction cylinder and the bottom baffle is opened in the first air guiding channel, a second release channel successively penetrating the outer extraction cylinder and the bottom baffle is opened in the second air guiding channel, and release pipes extending to the outside of the tank body are fixedly arranged in both the first release channel and the second release channel.

[0021] By adopting the above technical solution, when the middle cavity is connected with any temporary storage cavity, the first air guide channels located in the outer extraction cylinder and the inner extraction cylinder of the extension path are connected with each other, and at the same time, the second air guide channels located in the outer extraction cylinder and the inner extraction cylinder of the extension path are connected with each other. After the extraction water and tea leaves are separated, the extraction water is stored in the temporary storage cavity. At this time, the flip sealing plate has not yet flipped toward the separation channel. When the pressing plate resets, the supporting plate resets and slides under the elastic force of the reset spring. At this time, the space of the extraction cavity on the side of the supporting plate toward the bottom baffle becomes larger and the pressure becomes smaller. The volatile gas with tea aroma in the temporary storage cavity is sucked into the extraction cavity through the separation channel. After the supporting plate is reset, the driving motor is reversed to drive the flip sealing plate to flip toward the separation channel and close the separation channel. At this time, the volatile gas with tea aroma remains In the extraction chamber, when the pressing plate moves toward the supporting plate, the supporting plate is squeezed and moves toward the bottom baffle. At this time, the flip sealing plate is not opened, and the air pressure in the extraction chamber increases, causing the air pressure in the first air guide channel to increase and be greater than the air pressure in the second air guide channel, thereby causing the two elastic sealing plates abutting each other to undergo elastic deformation and separation, and the gas in the first air guide channel is introduced into other drainage spaces through the second air guide channel. Since the other drainage spaces are aligned with other temporary storage chambers, the tea aroma can enter other temporary storage chambers that store extracted water, which is beneficial to making the tea aroma stored in the temporary storage chamber more intense. When extracting different types of tea, since the extracted water stored in each temporary storage chamber has a different aroma, different extracted waters can contain different types of tea aromas, making the flavor of the extracted water better.

[0022] A separation method for a tea deep processing extraction and separation device, the separation method comprising: S1: Tea leaves and water are mixed and introduced into the space between the pressing plate and the supporting plate through the feeding pipe. At this time, the sealing structure seals the supporting plate and the tea leaves begin to be extracted; S2: After a single extraction of the tea leaves is completed, the driving structure drives the pressing plate to move toward the supporting plate, and the pressing plate squeezes the tea leaves and pushes the supporting plate to move; S3: When the pressing plate and the supporting plate move to the separation channel, the shielding structure opens, allowing the extracted water between the pressing plate and the supporting plate to flow out through the separation channel, while the remaining tea leaves are squeezed by the pressing plate and the supporting plate and retained between the pressing plate and the supporting plate, thus completing the separation of the tea leaves and the extracted water; S4: The driving structure drives the pressing plate to move away from the supporting plate, and the supporting plate is reset under the elastic action of the reset spring; S5: introducing water into the space between the pressing plate and the supporting plate through the feeding pipe, so that the water mixes between the pressing plate and the supporting plate and extracts the tea leaves; S6: Repeat steps S2-S5; S7: Connect the bearing plate with the movable pipe through a closed structure, and discharge the tea leaves and water to the outside of the tank body through the movable pipe, completing all the extraction steps of the tea leaves.

[0023] The beneficial effects of the present invention are as follows: After mixing the tea leaves and water, they are introduced into the space between the bearing plate and the pressing plate through the feed pipe. At this time, since the bearing plate and the pressing plate are respectively sealed with the inner wall of the inner extraction cylinder, the tea water mixture cannot move further. At this time, the water conducts the primary immersion extraction on the tea leaves. After the extraction time arrives, the driving structure drives the feed pipe to move towards the bearing plate. At this time, due to the reduction of the space between the pressing plate and the bearing plate, the extraction water between the pressing plate and the bearing plate will flow back into the interior of the feed pipe, thereby flushing a little tea leaves attached to the inner wall of the feed pipe and bringing the tea leaves into the space between the bearing plate and the pressing plate for extraction, avoiding excessive attachment of tea leaves to the inner wall of the feed pipe and affecting the extraction quality of the tea leaves. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a structural sectional view of the present invention; Figure 3 is Figure 2 an enlarged structural view of part A in Figure 4 is a schematic structural diagram of the present invention when the pressing plate presses the tea leaves on the bearing plate; Figure 5 is a schematic structural diagram of the present invention when the pressing plate presses the flexible sealing film into the airtight cavity; Figure 6 is a partial structural sectional view of the closed structure of the present invention.

[0025] In the figure: 10, tank body; 11, support frame; 12, bottom baffle; 13, top baffle; 14, external connection pipe; 15, threaded sleeve; 16, feed pipe; 17, adjustment motor; 18, fixed rod; 19, disturbance plate; 20, external extraction cylinder; 21, internal extraction cylinder; 22, extraction chamber; 23, flexible sealing film; 24, pressing plate; 25, flipping sealing plate; 26, filter plate; 27, return spring; 28, waste connection pipe; 29, connecting rod; 30, bearing plate; 31, movable pipe; 32, closed chamber; 33, communication channel; 34, closing plate; 35, magnetic attraction block; 36, electromagnet; 37, closing spring; 38, connecting plate; 39, intermediate chamber; 40, rotating sleeve; 41, airtight chamber; 42, expansion piece; 43, drainage space; 44, rotating motor; 45, rotating gear; 46, temporary storage chamber; 48, external connection block; 49, transfer pipeline; 50, first air guide channel; 51, second air guide channel; 52, elastic sealing piece; 53, first release channel; 54, second release channel; 55, release pipe; 56, separation channel; 60, movable electrode ring; 61, fixed electrode ring. Detailed implementation mode

[0026] In order to easily understand the technical means, creative features, achieved purposes and effects of the present invention, the present invention will be further described below in conjunction with specific drawings.

[0027] As Figures 1 to 3 shown, a tea deep processing extraction and separation device includes a tank body 10 and a plurality of support frames 11 fixed at the vertical ends of the tank body 10. The inside of the tank body 10 is hollow. Bottom baffles 12 and top baffles 13 are respectively fixedly arranged on the vertical end faces of the tank body 10. The bottom baffle 12 is located at one end close to the support frame 11. The device further includes an internal extraction cylinder 21, a pressing plate 24, a bearing plate 30, a movable pipe 31 and a separation channel 56. The internal extraction cylinder 21 is arranged inside the tank body 10. The inside of the internal extraction cylinder 21 is hollow to form an extraction chamber 22. The separation channel 56 is opened on a single outer side of the internal extraction cylinder 21. The separation channel 56 communicates with the extraction chamber 22 and is opened in the horizontal direction. The bearing plate 30 is vertically slidably arranged in the extraction chamber 22. The outer contour of the bearing plate 30 is the same as the inner contour of the extraction chamber 22. The connection between the bearing plate 30 and the inner wall of the extraction chamber 22 is sealed. The pressing plate 24 is arranged on the side of the bearing plate 30 facing the top baffle 13. The pressing plate 24 is vertically slidably arranged in the extraction chamber 22. The outer contour of the pressing plate 24 is the same as the inner contour of the extraction chamber 22. The connection between the pressing plate 24 and the inner wall of the extraction chamber 22 is sealed. A feed pipe 16 communicating with the space between the pressing plate 24 and the bearing plate 30 is fixedly arranged on the side of the pressing plate 24 away from the bearing plate 30. The end of the feed pipe 16 away from the pressing plate 24 penetrates through the top baffle 13 and extends to the outside of the tank body 10.

[0028] AsFigure 2 As shown, a fixed rod 18 is fixedly arranged inside the feed pipe 16. The fixed rod 18 does not seal the inside of the feed pipe 16 and allows water and tea leaves to pass through. A disturbing plate 19 is rotatably arranged on the fixed rod 18 and extends along a spiral path in the axial direction of the feed pipe 16. The fixed rod 18 and the disturbing plate 19 form a disturbing structure, and at least one group of disturbing structures is arranged in the extending direction of the feed pipe 16. One end of the feed pipe 16 extending outside the tank body 10 can be threadedly connected to an external connection pipe 14, and the external connection pipe 14 is connected to a mixing device that provides a mixture of tea leaves and water externally. The movable pipe 31 is fixed on the side of the bearing plate 30 away from the pressing plate 24, and the end of the movable pipe 31 away from the bearing plate 30 extends outside the tank body 10. One end of the movable pipe 31 connected to the bearing plate 30 communicates with the space between the pressing plate 24 and the bearing plate 30. The sliding path of the end of the movable pipe 31 away from the bearing plate 30 penetrates through the inner extraction cylinder 21 and the bottom baffle 12 to form a discharge channel.

[0029] As Figures 2 to 5 shown, a sealing structure for separating the movable pipe 31 from the space between the pressing plate 24 and the bearing plate 30 is arranged at the connection between the movable pipe 31 and the bearing plate 30. A shielding structure capable of sealing the extraction cavity 22 is arranged in the separation channel 56. A driving structure for pushing the pressing plate 24 to slide vertically through the feed pipe 16 is arranged on the pressing plate 24. A return spring 27 is sleeved outside the movable pipe 31, and both ends of the return spring 27 are fixedly connected to the inner wall of the extraction cavity 22 and the bearing plate 30 respectively. The return spring 27 provides an elastic force for the bearing plate 30 vertically towards the top baffle 13.

[0030] As Figure 2 and Figure 6 shown, the sealing structure includes a sealing cavity 32, a communication channel 33, a sealing plate 34, a magnetic attraction block 35 and a sealing spring 37. The communication channel 33 is vertically and penetratingly arranged on the bearing plate 30. One end of the communication channel 33 communicates with the space between the pressing plate 24 and the movable pipe 31, and the other end of the communication channel 33 communicates with the movable pipe 31. The sealing cavity 32 is horizontally opened in the bearing plate 30 and communicates with the communication channel 33. Two sealing plates 34 are arranged oppositely, and the two sealing plates 34 are slidably arranged oppositely in the sealing cavity 32. When the two sealing plates 34 abut against each other, they can seal the communication channel 33. The connection between the sealing plate 34 and the sealing cavity 32 is sealed to prevent water from entering the sealing plate 34. The magnetic attraction block 35 is fixed on the opposite side surfaces of the two sealing plates 34, and an electromagnet 36 is fixedly arranged on the end wall of the sealing cavity 32 opposite to the magnetic attraction block 35. The electromagnet 36 magnetically attracts the magnetic attraction block 35 only after being energized to separate the two sealing plates 34. The sealing spring 37 is arranged between the opposite side surfaces of the sealing plate 34 and the inner side end wall of the sealing cavity 32 where the electromagnet 36 is located. As Figure 2 and Figure 4As shown in the figure, the shielding structure includes a flipping sealing plate 25 and a filter plate 26. One end of the flipping sealing plate 25 is hinged to the opposite end wall of the separation channel 56, and the flipping sealing plate 25 flips along the hinged end in a direction away from the inner extraction cylinder 21. A driving motor is fixedly arranged inside the wall of the separation channel 56 and is power-connected to the hinge shaft of the flipping sealing plate 25. The filter plate 26 is arranged on the side of the separation channel 56 away from the flipping sealing plate 25, and the filter plate 26 is fixedly connected to the separation channel 56. When the flipping sealing plate 25 is located inside the separation channel 56, it seals the separation channel 56.

[0031] As Figure 2 shown in the figure, the driving structure includes a threaded sleeve 15 and an adjusting motor 17. The threaded sleeve 15 is sleeved outside the feed pipe 16. The threaded sleeve 15 is rotatably connected to the top baffle 13 and is threadedly connected to the feed pipe 16. The adjusting motor 17 is arranged on the side of the threaded sleeve 15 and is fixedly connected to the top baffle 13. A power output shaft is power-connected to the adjusting motor 17. Gears are sleeved on both the output shaft and the threaded sleeve 15, and the two gears mesh with each other to form a gear pair. The threaded sleeve 15 and the output shaft are power-connected through this gear pair.

[0032] As Figure 5 shown in the figure, an outer extraction cylinder 20 is arranged inside the tank body 10 and is located outside the inner extraction cylinder 21. The outer extraction cylinder 20 is fixedly connected to the inner wall of the tank body 10 through a connecting rod 29. A plurality of connecting rods 29 are provided. The horizontal radial section of the inner extraction cylinder 21 is polygonally arranged, generally quadrilateral. The outer vertical edge of the inner extraction cylinder 21 is in sliding contact with the inner wall of the outer extraction cylinder 20 and the contact part is sealed. A plurality of drainage spaces 43 are formed between the outer side surface of the inner extraction cylinder 21 and the inner wall of the outer extraction cylinder 20, and the plurality of drainage spaces 43 are independent of each other. When the horizontal radial section of the inner extraction cylinder 21 is quadrilateral, there are four drainage spaces 43. One end of the inner extraction cylinder 21 facing the bottom baffle 12 abuts against the inner wall of the outer extraction cylinder 20. Rotating sleeves 40 are fixedly arranged at the vertical ends of the inner extraction cylinder 21 respectively. The rotating sleeves 40 are rotatably connected to the inner wall of the outer extraction cylinder 20 and the two rotating sleeves 40 seal the vertical ends of the drainage spaces 43. As Figure 5 shown in the figure, an intermediate cavity 39 communicating with the plurality of drainage spaces 43 is opened inside the rotating sleeve 40 on the side close to the bottom baffle 12. A plurality of temporary storage cavities 46 communicating with the intermediate cavity 39 are penetrated through one end of the outer extraction cylinder 20 facing the bottom baffle 12. The number of the temporary storage cavities 46 and the intermediate cavity 39 is the same as that of the drainage spaces 43. One drainage space 43 and the intermediate cavity 39 can be sequentially communicated with temporary storage cavities 46 at different positions through the rotation of the inner extraction cylinder 21.

[0033] As Figure 2As shown, an external connection block 48 is fixedly arranged at the outer end of the outer extraction cylinder 20 facing the bottom baffle 12. The end of the external connection block 48 penetrates through the bottom baffle 12 and extends to the outside of the tank body 10. A transfer pipeline 49 communicating with the temporary storage cavity 46 is fixedly arranged on the external connection block 48. One end of the transfer pipeline 49 away from the external connection block 48 is communicated with a pipeline for conveying liquid externally, and a solenoid valve is fixedly installed at the communication port. The sliding path of one end of the movable pipe 31 away from the bearing plate 30 penetrates through the outer extraction cylinder 20. A waste connection pipe 28 is fixed outside the bottom baffle 12. The waste connection pipe 28 is communicated with the discharge channel where the movable pipe 31 penetrates through the bottom baffle 12. The waste connection pipe 28 can be communicated with an external waste collection device and discharge the completely extracted tea leaves and waste water into the waste collection device. A rotating motor 44 is fixedly arranged on the outer side surface of the outer extraction cylinder 20. A rotating gear 45 is power-connected to the rotating motor 44. The rotating gear 45 meshes with the outer side surface of the rotating sleeve 40 on one side close to the top baffle 13.

[0034] As Figure 5 shown, the inside of the rotating sleeve 40 on one side close to the top baffle 13 is hollowly arranged to form an airtight cavity 41. An inert gas is filled in the airtight cavity 41. The airtight cavity 41 is communicated with the drainage space 43. An expansion sheet 42 for sealing the airtight cavity 41 is fixedly arranged at the communication part between the airtight cavity 41 and the drainage space 43. A connecting plate 38 for fixedly connecting the inner extraction cylinder 21 and the rotating sleeve 40 is arranged in the airtight cavity 41. An opening communicating with the airtight cavity 41 is arranged at one end of the extraction cavity 22 facing the top baffle 13. A flexible sealing film 23 for sealing the extraction cavity 22 is fixedly arranged at the opening of the extraction cavity 22.

[0035] As Figures 2 to 3As shown in the figure, on one side of the extraction chamber 22 close to the bottom baffle 12, a first air guiding channel 50 extending into the outer extraction cylinder 20 is provided. The first air guiding channel 50 is divided into two parts by the inner extraction cylinder 21 and the extraction chamber 22. In the wall body of the inner extraction cylinder 21 facing the drainage space 43, a second air guiding channel 51 extending into the outer extraction cylinder 20 is provided. The second air guiding channel 51 is divided into two parts by the inner extraction cylinder 21 and the extraction chamber 22. One end of the second air guiding channel 51 located in the outer extraction cylinder 20 is communicated with one end of the first air guiding channel 50. One end of the second air guiding channel 51 far from the first air guiding channel 50 is communicated with the drainage space 43. At the communication part of the first air guiding channel 50 and the second air guiding channel 51, an elastic sealing sheet 52 is relatively fixedly arranged. The two elastic sealing sheets 52 are abutted against each other to seal and separate the first air guiding channel 50 and the second air guiding channel 51. The first air guiding channel 50, the second air guiding channel 51 and the elastic sealing sheet 52 together form an air guiding structure. A plurality of air guiding structures are arranged in the outer extraction cylinder 20 and the inner extraction cylinder 21. The number and position of the air guiding structures correspond to the number and position of the drainage space 43. On the side of the inner extraction cylinder 21 where the separation channel 56 is opened, the first air guiding channel 50 and the second air guiding channel 51 inside the inner extraction cylinder 21 are not provided, but the first air guiding channel 50 and the second air guiding channel 51 in the outer extraction cylinder 20 corresponding to this part are normally provided, as Figure 2 shown. When the temporary storage chamber 46 is not aligned with the intermediate chamber 39, the two parts of the first air guiding channel 50 and the second air guiding channel 51 are not aligned. Only when an intermediate chamber 39 is aligned with any temporary storage chamber 46, the two parts of the first air guiding channel 50 and the second air guiding channel 51 located in the inner extraction cylinder 21 and the extraction chamber 22 are aligned with each other. A first release channel 53 that sequentially penetrates the outer extraction cylinder 20 and the bottom baffle 12 is provided in the first air guiding channel 50. A second release channel 54 that sequentially penetrates the outer extraction cylinder 20 and the bottom baffle 12 is provided in the second air guiding channel 51. Release pipes 55 extending to the outside of the tank body 10 are fixedly arranged in both the first release channel 53 and the second release channel 54.

[0036] As Figure 2 shown, on the end face of the inner extraction cylinder 21 facing the bottom baffle 12, an annular movable electrode ring 60 is fixedly arranged. On the part of the bottom of the outer extraction cylinder 20 abutting against the inner extraction cylinder 21, a fixed electrode ring 61 that is aligned with the movable electrode ring 60 and is annular is fixedly arranged. The movable electrode ring 60 and the fixed electrode ring 61 are in sliding abutment. A wire is electrically connected to the electromagnet 36. The extending path of the wire passes through the space on the side of the carrier plate 30 facing the bottom baffle 12 and is stacked in this space. One end of the wire far from the electromagnet 36 extends into the inner extraction cylinder 21 through the end wall of the extraction chamber 22 facing the bottom baffle 12 and is electrically connected to the movable electrode ring 60. The fixed electrode ring 61 is connected to an external power supply device. The external power supply device transmits electric energy to the fixed electrode ring 61 and transfers it to the electromagnet 36 through the movable electrode ring 60 and the wire.

[0037] In the initial state, the closed structure separates the bearing plate 30 from the movable tube 31. After mixing tea leaves and water, it is introduced into the space between the bearing plate 30 and the pressing plate 24 through the feed pipe 16. The water is hot water at a temperature of 90 - 99 degrees Celsius. At this time, since the bearing plate 30 and the pressing plate 24 are respectively sealed with the inner wall of the inner extraction cylinder 21, the tea mixture cannot move further. At this time, the water conducts the first extraction of the tea leaves. After the extraction time arrives, the driving structure drives the feed pipe 16 to move towards the bearing plate 30. At this time, since the space between the pressing plate 24 and the bearing plate 30 decreases, the connections between the pressing plate 24 and the bearing plate 30 and the inner wall of the extraction cavity 22 are sealed. At this time, the extraction water between the pressing plate 24 and the bearing plate 30 will flow back into the interior of the feed pipe 16, thereby flushing a little tea leaves attached to the inner wall of the feed pipe 16 and bringing the tea leaves into the space between the bearing plate 30 and the pressing plate 24 for extraction, avoiding excessive attachment of tea leaves to the inner wall of the feed pipe 16 and affecting the extraction quality of the tea leaves.

[0038] During the process of the pressing plate 24 moving towards the bearing plate 30, the tea leaves will be squeezed. At the same time, the bearing plate 30 moves in the direction away from the top baffle 13. When the bearing plate 30 moves to the separation channel 56, the blocking structure is opened, so that the extraction water between the pressing plate 24 and the bearing plate 30 flows out of the inner extraction cylinder 21 through the separation channel 56. Due to the pressure of the pressing plate 24 and the bearing plate 30, the tea leaves still remain between the pressing plate 24 and the bearing plate 30, achieving the purpose of quickly separating the tea leaves and the extraction water. Then, the driving structure makes the pressing plate 24 move away from the bearing plate 30 through the feed pipe 16. The bearing plate 30 gradually resets under the elastic action of the return spring 27. At this time, new water can be injected into the space between the pressing plate 24 and the bearing plate 30 through the feed pipe 16 for the second extraction of the tea leaves. The tea leaves can be further extracted after being slightly squeezed by the pressing plate 24 and the bearing plate 30, which can further improve the extraction effect, so that the quality of the second extraction of the tea leaves is higher.

[0039] When it is necessary to close the communication channel 33, the electromagnet 36 is powered off, and the two closing plates 34 abut against each other under the elastic action of the closing spring 37, thereby sealing the communication channel 33, avoiding the tea leaves and water between the bearing plate 30 and the pressing plate 24 from flowing into the movable tube 31 and achieving the closing effect. When it is necessary to discharge the tea leaves and water on the bearing plate 30, the electromagnet 36 is powered on and adsorbs the magnetic block 35, so that the two closing plates 34 are disengaged from abutting. At this time, the tea leaves and water enter the movable tube 31 through the communication channel 33 and are discharged, achieving the purpose of removing the extracted tea leaves, enabling the extraction and separation equipment to carry out the tea extraction operation for the next batch.

[0040] Under normal conditions, the flipping sealing plate 25 seals the separation channel 56, closing the extraction chamber 22. When it is necessary to move the pressing plate 24 towards the bearing plate 30, the driving motor starts and drives the flipping sealing plate 25 to flip towards the outside of the separation channel 56. At this time, the flipping sealing plate 25 releases the seal of the separation channel 56. When the bearing plate 30 moves to the separation channel 56, the extracted water can flow through the filter plate 26 to the outside of the inner extraction cylinder 21, and the tea leaves are intercepted and separated by the filter plate 26, achieving the purpose of separating the tea leaves and the extracted water.

[0041] After the adjusting motor 17 starts, it drives the threaded sleeve 15 to rotate around a fixed axis through a gear pair. At this time, since the threaded sleeve 15 is threadedly connected to the feed pipe 16, and the feed pipe 16 is fixed to the pressing plate 24 and the pressing plate 24 cannot rotate, under the action of the threaded structure, the feed pipe 16 slides in the vertical direction to achieve the purpose of adjusting the relative position between the pressing plate 24 and the bearing plate 30.

[0042] When the intermediate cavity 39 is aligned and communicated with the temporary storage cavity 46, the extracted water discharged through the separation channel 56 first enters the drainage space 43, and then flows into the temporary storage cavity 46 through the intermediate cavity 39 for short-term storage. The extracted water stored in the temporary storage cavity 46 can be directly transmitted to an external storage device through the transfer pipe 49 for long-term storage; when different types of tea leaves are extracted each time, by starting the rotating motor 44 to drive the rotating gear 45 to rotate, the rotating sleeve 40 rotates accordingly. The rotating sleeve 40 drives the inner extraction cylinder 21 to rotate through the connecting plate 38, so that the intermediate cavity 39 on one side of the separation channel 56 rotates and communicates with another temporary storage cavity 46 that has not stored the extracted water. At this time, other types of tea leaves can be normally extracted, and the extracted water is short-term stored in this temporary storage cavity 46, enabling the extraction and separation device to extract multiple types of tea leaves and independently store their extracted water, improving the application range of the extraction and separation device.

[0043] After the tea leaf extraction process is completed and the temporary storage cavity 46 stores the extracted water, the adjusting motor 17 starts and drives the threaded sleeve 15 to rotate, causing the feed pipe 16 to drive the pressing plate 24 to move away from the bearing plate 30, and the pressing plate 24 presses the flexible sealing film 23. At this time, the flexible sealing film 23 undergoes elastic deformation, reducing the space in the airtight cavity 41. Due to the reduction of the space in the airtight cavity 41, the air pressure in the airtight cavity 41 increases and is higher than the air pressure in the drainage space 43. At this time, the expansion piece 42 expands and deforms towards the drainage space 43 under the pressure difference, increasing the air pressure in the drainage space 43 until the air pressure in the drainage space 43 is the same as the air pressure in the airtight cavity 41. This can keep the extracted water in an environment with a pressure higher than the atmospheric pressure, which is beneficial to slowing down the cooling rate of the extracted water and minimizing the volatilization of the tea aroma in the extracted water.

[0044] When the mixture of water and tea leaves flows through the disturbance plate 19, the spiral structure of the disturbance plate 19 causes the disturbance plate 19 to rotate, thereby causing the disturbance plate 19 to disturb the mixture, further promoting the mixing of water and tea leaves, allowing the tea leaves to fully contact with water, and facilitating the subsequent tea extraction process.

[0045] When the middle cavity 39 is connected with any temporary storage cavity 46, the first air guide channel 50 extending the path is located in the outer extraction cylinder 20 and the inner extraction cylinder 21 and is connected to each other. At the same time, the second air guide channel 51 extending the path is located in the outer extraction cylinder 20 and the inner extraction cylinder 21 and is connected to each other. After the extracted water and tea leaves are separated through the separation channel 56, the extracted water is stored in a temporary storage cavity 46. At this time, the flip sealing plate 25 has not flipped toward the separation channel 56. When the pressing plate 24 is reset, the supporting plate 30 is reset and slid under the elastic force of the reset spring 27. At this time, the space of the extraction cavity 22 on the side of the supporting plate 30 toward the bottom baffle 12 becomes larger and the pressure becomes smaller. The volatile gas with tea aroma in the temporary storage cavity 46 is sucked into the extraction cavity 22 through the separation channel 56. After the supporting plate 30 is reset, the driving motor is reversed to drive the flip sealing plate 25 to flip toward the separation channel 56 and close the separation channel 56. At this time, the volatile gas of the tea aroma is released. The volatile gas remains in the extraction chamber 22. When the pressing plate 24 moves toward the supporting plate 30, the supporting plate 30 is squeezed and moves toward the bottom baffle 12. At this time, the flip sealing plate 25 is not opened, and the air pressure in the extraction chamber 22 increases, causing the air pressure in the first air guide channel 50 to increase and be greater than the air pressure in the second air guide channel 51, thereby causing the two elastic sealing plates 52 abutting each other to undergo elastic deformation and separation. The gas in the first air guide channel 50 is introduced into other drainage spaces 43 through the second air guide channel 51. Since the other drainage spaces 43 are aligned with other temporary storage chambers 46, the tea aroma can enter other temporary storage chambers 46 for storing extracted water, which can make the tea aroma stored in the temporary storage chamber 46 more intense. When extracting different types of tea, since the extracted water stored in each temporary storage chamber 46 has a different aroma, different extracted waters can contain different types of tea aromas, making the extracted water more fragrant.

[0046] A first release channel 53 communicating with the first air guide channel 50 and a second release channel 54 communicating with the second air guide channel 51 are formed through the bottom baffle 12. The first release channel 53 and the second release channel 54 are respectively located on both sides of the elastic sealing sheet 52. A release pipe 55 extending to the outside of the tank body 10 is fixedly arranged inside the first release channel 53 and the second release channel 54. A manual valve for switching is connected to the release pipe 55. Since the carrier plate 30 will contact the filter plate 26 during the vertical movement, a part of the extraction water will adhere to the filter plate 26 and flow to the inner wall of the extraction cavity 22 facing the bottom baffle 12 under the action of gravity during subsequent extraction treatment and converge. At this time, a part of the extraction water will flow into the first air guide channel 50 and enter the second air guide channel 51 following the above steps of the tea fragrance passing through the first air guide channel 50. The extraction water accumulated in the first air guide channel 50 and the second air guide channel 51 can be discharged to the outside of the tank body 10 by opening the valve on the release pipe 55, avoiding the accumulation of extraction water in the extraction cavity 22, the first air guide channel 50 and the second air guide channel 51 and affecting the operation of the equipment.

[0047] When the extraction water temporarily stored in the temporary storage cavity 46 needs to be transferred, the solenoid valve on the transfer pipeline 49 is opened to make the extraction water flow out of the temporary storage cavity 46 into the pipeline for transporting liquids outside the tank body 10, achieving the purpose of transporting the extraction water. Since the temporary storage cavity 46 is communicated with the external pipeline, the gas existing in the pipeline and the external storage device will reverse into the temporary storage cavity 46 to supplement the lacking gas after the solenoid valve is opened, keeping the air pressure in the temporary storage cavity 46 near the atmospheric pressure value.

[0048] A separation method for a tea deep-processing extraction and separation device, the separation method comprising: S1: Mix the tea and water and pass them through the feed pipe 16. When passing through the disturbance plate 19, the disturbance plate 19 can disturb the water and tea to mix them sufficiently, and finally make them enter the space between the pressing plate 24 and the carrier plate 30. At this time, the two closing plates 34 in the closing structure abut against each other to close the carrier plate 30, and start to extract the tea. S2: After a single extraction of the tea is completed, the adjustment motor 17 in the driving structure is started to drive the threaded sleeve 15 to rotate, thereby driving the pressing plate 24 to move towards the carrier plate 30. The pressing plate 24 squeezes the tea and pushes the carrier plate 30 to move. S3: When the pressing plate 24 and the bearing plate 30 move to the separation channel 56, the drive motor in the shielding structure starts and drives the flipping sealing plate 25 to flip, opening the separation channel 56. The extraction water between the pressing plate 24 and the bearing plate 30 flows out through the separation channel 56. The outflowing extraction water enters the temporary storage cavity 46 through the intermediate cavity 39 under the action of gravity for storage. The remaining tea leaves are retained between the pressing plate 24 and the bearing plate 30 under the extrusion of the pressing plate 24 and the bearing plate 30, completing the separation of the tea leaves and the extraction water. S4: The drive motor in the drive structure starts in the reverse direction, driving the pressing plate 24 to move away from the bearing plate 30. The bearing plate 30 is reset under the elastic action of the return spring 27. S5: Water is re-introduced into the space between the pressing plate 24 and the bearing plate 30 through the feed pipe 16, so that the water is mixed between the pressing plate 24 and the bearing plate 30 and the tea leaves are extracted. S6: Repeat steps S2 - S5. S7: When the tea leaves in the pressing plate 24 and the bearing plate 30 are completely extracted, the electromagnet 36 is energized and adsorbs the magnetic block 35 by opening the closing structure, separating the two closing plates 34, connecting the bearing plate 30 and the movable pipe 31 through the communication channel 33. The tea leaves and the waste water are discharged into the waste connection pipe 28 outside the tank body 10 through the movable pipe 31 and finally introduced into the waste collection equipment for collection, thus completing all the extraction steps of the tea leaves.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope claimed by the present invention. The scope claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An extraction and separation device for deep processing of tea leaves, comprising a tank body (10) and a plurality of support frames (11) fixed to the vertical end of the tank body (10). The interior of the tank body (10) is hollow, and bottom baffles (12) and top baffles (13) are respectively and fixedly arranged on the vertical end faces of the tank body (10). The bottom baffle (12) is located at one end close to the support frame (11), and it is characterized in that: Further included are: An inner extraction cylinder (21), which is arranged inside the tank body (10). The inside of the inner extraction cylinder (21) is hollow to form an extraction cavity (22). A separation channel (56), which is opened on the outer side surface of the inner extraction cylinder (21). The separation channel (56) communicates with the extraction cavity (22). A bearing plate (30), which is vertically slidably arranged inside the extraction cavity (22). The connection between the bearing plate (30) and the inner wall of the extraction cavity (22) is sealed. A pressing plate (24), which is arranged on the side of the bearing plate (30) away from the support frame (11). The pressing plate (24) is vertically slidably arranged inside the extraction cavity (22). The connection between the pressing plate (24) and the inner wall of the extraction cavity (22) is sealed. A feed pipe (16) that communicates with the space between the pressing plate (24) and the bearing plate (30) is fixedly arranged on the side of the pressing plate (24) away from the bearing plate (30). A movable pipe (31), which is fixed on the side of the bearing plate (30) away from the pressing plate (24), and the end of the movable pipe (31) away from the bearing plate (30) extends outside the tank body (10). Wherein, a closed structure that can separate the movable pipe (31) from the space between the pressing plate (24) and the bearing plate (30) is arranged at the connection between the movable pipe (31) and the bearing plate (30). A shielding structure that can be used to close the extraction cavity (22) is arranged inside the separation channel (56). A driving structure that can push the pressing plate (24) to slide vertically through the feed pipe (16) is arranged on the pressing plate (24). A return spring (27) is sleeved outside the movable pipe (31).

2. The extraction and separation device for deep processing of tea according to claim 1, wherein: The closed structure includes: A communication channel (33), which is opened on the bearing plate (30). One end of the communication channel (33) communicates with the space between the pressing plate (24) and the movable pipe (31), and the other end of the communication channel (33) communicates with the movable pipe (31). A closed cavity (32), which is opened inside the bearing plate (30) and communicates with the communication channel (33). Two closing plates (34) are oppositely arranged. The two closing plates (34) are slidably arranged opposite to each other inside the closed cavity (32). The two closing plates (34) abut against each other to close the communication channel (33). Magnetic attraction blocks (35), which are fixed on the opposite side surfaces of the two closing plates (34). An electromagnet (36) is fixedly arranged on the end wall of the inner side of the closed cavity (32) opposite to the magnetic attraction blocks (35). A closing spring (37), which is arranged between the opposite side surfaces of the closing plate (34) and the inner side end wall of the closed cavity (32) where the electromagnet (36) is located. Wherein, the electromagnet (36) magnetically attracts the magnetic attraction blocks (35) only after being energized to separate the two closing plates (34).

3. The extraction and separation device for deep processing of tea leaves according to claim 1, wherein: shielding The structure includes: A flipping sealing plate (25), one end of which is hinged to the opposite end walls of the separation channel (56). The flipping sealing plate (25) flips along the hinged end in a direction away from the inner extraction cylinder (21). A filter plate (26), which is arranged on the side of the separation channel (56) away from the flipping sealing plate (25). The filter plate (26) is fixedly connected to the separation channel (56). Among them, when the flipping sealing plate (25) is located inside the separation channel (56), it seals the separation channel (56). A driving motor that is power-connected to the hinge shaft of the flipping sealing plate (25) is fixedly arranged inside the wall of the separation channel (56).

4. A tea deep processing extraction and separation device according to claim 1, characterized in that: The driving structure includes: A threaded sleeve (15) sleeved outside the feed pipe (16). The threaded sleeve (15) is rotatably connected to the top baffle (13) and is threadedly connected to the feed pipe (16). An adjusting motor (17) arranged on the side of the threaded sleeve (15). An output shaft is power-connected to the adjusting motor (17). Among them, the output shaft and the threaded sleeve (15) are power-connected through a set of gear pairs.

5. A tea deep processing extraction and separation device according to claim 1, characterized in that: Inside the tank body (10), an outer extraction cylinder (20) is arranged outside the inner extraction cylinder (21). The outer extraction cylinder (20) is fixedly connected to the inner wall of the tank body (10) through a connecting rod (29). The horizontal radial section of the inner extraction cylinder (21) is polygonally arranged. The outer vertical edge of the inner extraction cylinder (21) is in sliding contact with the inner wall of the outer extraction cylinder (20) and the contact part is sealed. A plurality of drainage spaces (43) are formed between the outer side surface of the inner extraction cylinder (21) and the inner wall of the outer extraction cylinder (20). The plurality of drainage spaces (43) are independent of each other. Rotating sleeves (40) are fixedly arranged at the vertical end parts of the inner extraction cylinder (21) respectively. The rotating sleeves (40) are rotatably connected to the inner wall of the outer extraction cylinder (20) and the two rotating sleeves (40) close the vertical ends of the drainage spaces (43). An intermediate cavity (39) communicating with the plurality of drainage spaces (43) is formed inside the rotating sleeve (40) on the side close to the bottom baffle (12). A plurality of temporary storage cavities (46) communicating with the intermediate cavity (39) are arranged through the end of the outer extraction cylinder (20) facing the bottom baffle (12). An external connection block (48) is fixedly arranged at the outer end part of the outer extraction cylinder (20) facing the bottom baffle (12). The end part of the external connection block (48) penetrates through the bottom baffle (12) and extends to the outside of the tank body (10). A transfer pipeline (49) communicating with the temporary storage cavity (46) is fixedly arranged on the external connection block (48).

6. The extraction and separation device for deep processing of tea leaves according to claim 5, characterized in that: A rotating motor (44) is fixedly arranged on the outer side surface of the outer extraction cylinder (20). A rotating gear (45) is power-connected to the rotating motor (44). The rotating gear (45) meshes with the outer side surface of the rotating sleeve (40) on the side close to the top baffle (13).

7. A tea deep processing extraction and separation device according to claim 5, characterized in that: The inside of the rotating sleeve (40) on the side close to the top baffle (13) is hollow to form an airtight cavity (41). The airtight cavity (41) communicates with the drainage space (43). An expansion sheet (42) that seals the airtight cavity (41) is fixedly arranged at the communicating part of the airtight cavity (41) and the drainage space (43). A connecting plate (38) that fixedly connects the inner extraction cylinder (21) and the rotating sleeve (40) is arranged inside the airtight cavity (41). An opening communicating with the airtight cavity (41) is arranged at one end of the extraction cavity (22) facing the top baffle (13). A flexible sealing film (23) that seals the extraction cavity (22) is fixedly arranged at the opening of the extraction cavity (22).

8. A tea deep processing extraction and separation device according to claim 1, characterized in that: A fixing rod (18) is fixedly arranged inside the feed pipe (16), and a disturbing plate (19) which extends along a spiral path in the axial direction of the feed pipe (16) is rotatably arranged on the fixing rod (18).

9. A tea deep processing extraction and separation device according to claim 5, characterized in that: On one side of the extraction cavity (22) close to the bottom baffle (12), a first air guide channel (50) extending into the outer extraction cylinder (20) is opened. Inside the wall of the inner extraction cylinder (21) facing the drainage space (43), a second air guide channel (51) extending into the outer extraction cylinder (20) is opened. One end of the second air guide channel (51) located inside the outer extraction cylinder (20) communicates with one end of the first air guide channel (50). The end of the second air guide channel (51) far from the first air guide channel (50) communicates with the drainage space (43). An elastic sealing piece (52) is relatively fixedly arranged at the communicating part of the first air guide channel (50) and the second air guide channel (51). The two elastic sealing pieces (52) abut against each other to seal and separate the first air guide channel (50) and the second air guide channel (51). A first release channel (53) which successively penetrates through the outer extraction cylinder (20) and the bottom baffle (12) is opened in the first air guide channel (50). A second release channel (54) which successively penetrates through the outer extraction cylinder (20) and the bottom baffle (12) is arranged in the second air guide channel (51). Release pipes (55) extending to the outside of the tank body (10) are fixedly arranged in both the first release channel (53) and the second release channel (54).

10. A separation method of a separation device for deep processing and extraction of tea leaves according to any one of claims 1-9, characterized in that: The separation method includes: S1: Mix tea leaves and water and introduce them into the space between the pressing plate (24) and the bearing plate (30) through the feed pipe (16). At this time, the closed structure closes the bearing plate (30), and the extraction of tea leaves begins. S2: After a single extraction of tea leaves is completed, the driving structure drives the pressing plate (24) to move towards the bearing plate (30). The pressing plate (24) squeezes the tea leaves and pushes the bearing plate (30) to move. S3: When the pressing plate (24) and the bearing plate (30) move to the separation channel (56), the shielding structure is opened, so that the extraction water between the pressing plate (24) and the bearing plate (30) flows out through the separation channel (56). The remaining tea leaves are retained between the pressing plate (24) and the bearing plate (30) under the extrusion of the pressing plate (24) and the bearing plate (30), and the separation of tea leaves and extraction water is completed. S4: The driving structure drives the pressing plate (24) to move away from the bearing plate (30), and the bearing plate (30) is reset under the elastic action of the return spring (27). S5: Water is introduced into the space between the pressing plate (24) and the bearing plate (30) through the feed pipe (16), so that the water is mixed between the pressing plate (24) and the bearing plate (30) and the tea leaves are extracted. S6: Repeat steps S2 - S5. S7: The bearing plate (30) is communicated with the movable pipe (31) through the closed structure, and the tea leaves and water are discharged to the outside of the tank body (10) through the movable pipe (31), and all the extraction steps of the tea leaves are completed.

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