Cyclic tea extraction system

Abstract

The invention discloses a cyclic tea extraction system, relates to the technical field of tea extraction, and solves the problems that when an existing tea extraction system cleans tea, the tea is often adhered and attached to a filter screen, so that the working difficulty of cleaners is increased, pollution may be caused due to complexity of manual cleaning, and the cleaning efficiency is high. And the overall efficiency of tea extraction is reduced. Comprising a tea extraction tank, a tank cover arranged on the top surface of the tea extraction tank, a mounting base arranged in the tank cover and an electric valve arranged on a water outlet in the bottom of the tea extraction tank, and the electric valve is connected with an eduction tube; the mounting frame is arranged on the tank cover, and the inner bottom surface of a port of the mounting frame is connected with a filter plate; according to the tea leaf cleaning device, tea leaves are rapidly and automatically sucked out, the cleaning efficiency is remarkably improved, the risk of secondary pollution possibly caused by manual cleaning is effectively avoided through negative pressure suction force, the labor burden and difficulty of follow-up cleaning personnel are relieved, and cleanliness and sanitation of the extraction environment are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of tea extraction, and in particular relates to a circulating tea extraction system. Background Art

[0002] The tea extraction system is a new type of tea making technology, which is divided into two methods: cold extraction and hot extraction. Among them, cold extraction is a drink that extracts the effective ingredients in traditional tea through long-term low-temperature immersion or cold extraction technology; it uses low-temperature constant temperature immersion technology to adjust the immersion time according to different types of tea to ensure that the taste and nutrition of the tea are not destroyed, providing a healthier and better-tasting tea drinking experience. Hot extraction is a drink that extracts the effective ingredients in traditional tea through short-term high-temperature immersion or extraction technology, which is specifically based on dual control of pressure and temperature. When water is heated to a certain temperature, the movement of water molecules accelerates and the penetration is enhanced. At the same time, through the adjustment of pressure, water molecules can more easily penetrate into the tea, thereby extracting the effective ingredients in the tea (such as tea polyphenols, amino acids, caffeine, etc.). This process is not only fast and efficient, but also can preserve the aroma and taste of tea.

[0003] At present, in the process of cold extraction of tea, after a certain period of cyclic extraction of tea is completed, it is usually necessary to transfer the tea soup to a temporary storage tank for subsequent blending. At the same time, in order to reuse the equipment, the brewed tea leaves need to be cleaned out. In order to facilitate the removal of tea leaves, the current design adopts the method of placing the tea leaves on a filter structure, and then placing the entire filter structure and the tea leaves in the extraction equipment. However, this practice will cause a problem after the tea extraction is completed: when the filter structure is lifted to pour the tea leaves, the tea leaves tend to stick and adhere to the filter, which not only increases the difficulty of the cleaning workers' work, but also the tedious manual cleaning may cause pollution, reducing the overall efficiency of tea extraction. Therefore, based on the above problems, we designed a cyclic tea extraction system. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a circulating tea extraction system, which solves the technical problem that when the tea leaves are cleaned in the existing tea extraction system, the tea leaves tend to stick to and adhere to the filter screen, which not only increases the difficulty of the cleaning workers, but also the tedious manual cleaning may cause pollution, thereby reducing the overall efficiency of tea extraction.

[0005] To achieve the above object, according to an embodiment of the first aspect of the present invention, a circulating tea extraction system is provided, comprising a tea extraction tank, a tank cover arranged on the top surface of the tea extraction tank, a mounting base arranged in the tank cover, and an electric valve arranged on the water outlet at the bottom of the tea extraction tank, wherein the electric valve is connected to a dewatering pipe;

[0006] Also includes:

[0007] The mounting frame is arranged on the tank cover, the inner bottom surface of the port of the mounting frame is connected with a filter plate, a plurality of water filtering holes are penetrated on the filter plate, a circle of filter screen cover is connected to the surface edge of the filter plate, and a delivery port is arranged at the upper end of the side of the filter screen cover.

[0008] A further improvement is that the outer wall of the tea extraction pot is connected to a support, the support is connected to a lifting cylinder, the rod body of the lifting cylinder is connected to a frame rod, and the other end of the frame rod is connected to the pot cover.

[0009] A further improvement is that it also includes: a clamping assembly, which includes a plurality of mounting ears connected to the edge of the outer wall of the top surface of the tea extraction tank, a clamping piece rotatably arranged in the port of each mounting ear, a pressure wheel rotatably arranged in the port of one end of each pressure wheel, and a reset spring arranged at the other end of each pressure wheel, the outer wall of the tea extraction tank is connected to an assembly seat, the other side of each reset spring is respectively connected to the assembly seat, and a plurality of clamping notches are opened at the edge of the outer wall of the tank cover, and each clamping notch corresponds to each pressure wheel.

[0010] A further improvement is that the middle portion of each of the clamping notches is recessed downward and is cooperatively connected to the pressing wheel, and each of the clamping members and the pressing wheel are equidistantly distributed.

[0011] A further improvement is that it further comprises: a sealing assembly, wherein the top surface port of the tea extraction tank is provided with an installation notch, and the sealing assembly comprises a circle of sealing rubber ring fitted and connected to the inner wall of the installation notch and a circle of sealing convex ring connected to the edge of the bottom surface of the tank cover, and the sealing convex ring is divided into a head section and a tail section;

[0012] When the can lid is closed, the outer wall surface of the head section of the sealing convex ring is in contact with the inner wall surface of the sealing rubber ring, and the end section is in contact with the sealing rubber ring and the edge of the top port of the tea extraction can.

[0013] A further improvement lies in the suction mechanism, which includes a plurality of suction tubes inserted through the tank cover and the mounting base, a suction cover arranged in the filter cover and respectively connected to each suction tube, a mounting frame arranged outside the tea extraction tank, a sliding sleeve fixedly inserted through the tank cover and the middle part of the mounting base, an auxiliary rod movably inserted through the sliding sleeve and the top end of which is connected to the mounting frame, a piston sleeve being sleeved on the auxiliary rod, the outer wall of the piston sleeve being in contact with the inner wall of the sliding sleeve, and the other end of the frame rod being connected to the sliding sleeve.

[0014] A further improvement is that the suction mechanism also includes a vacuum suction pump, the input pipeline of the vacuum suction pump is connected to an isolation cleaner, an isolation filter element is arranged in the isolation cleaner, and each of the suction tubes is respectively connected to a port of the isolation cleaner.

[0015] A further improvement is that an assembly disk is provided on the suction hood, and a plurality of mounting blocks sleeved on the outer wall of each suction pipe opening are connected to the outer edge of the assembly disk, and the end of the auxiliary rod is connected to the top surface of the assembly disk.

[0016] A further improvement is that each of the mounting blocks is connected to the outside with a mounting ring, on which a rubber scraper ring is sleeved, on the inner wall of the rubber scraper ring are provided a number of T-shaped plugs, on the back of each T-shaped plug is connected a sub-buckle, on the outer wall of the mounting ring are provided a slot corresponding to the position of each T-shaped plug, on the inner wall of each slot is embedded a female buckle, and on the rubber scraper ring is sleeved a circle of curved scrapers, which bend toward the bottom of the tea extraction pot.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The present invention places a sufficient amount of tea leaves directly on the filter plate through the delivery port, and the filter plate is surrounded by the filter cover. Subsequently, the filter structure is lifted and lowered by driving the frame rod using a lifting cylinder, and is placed inside the tea extraction tank. At this time, the tank cover is closed and fits the tea extraction tank. This design ensures that a sufficient amount of tea leaves are delivered at one time, while effectively avoiding the problem of tea leaves overflowing or falling. When the filter structure is lifted, the tea can flow smoothly from the water filtration holes of the filter plate and the sides of the filter cover into the bottom of the tea extraction tank. The two do not interfere with each other, which greatly facilitates the subsequent unified cleaning work.

[0019] (2) When the can lid of the present invention is closed and fits with the tea brewing can, the outer wall surface of the head section of the sealing convex ring and the inner wall surface of the sealing rubber ring are in contact with each other, and the rear section is in contact with the sealing rubber ring and the edge of the top port of the tea brewing can, and a clamping assembly is arranged on the edge of the top port of the tea brewing can. This design allows the edge of the can lid to press the pressure wheel in the port of each clamping member respectively under the drive of the lifting cylinder until each pressure wheel is respectively stuck in the middle depression of each clamping notch. In this way, the reset compression spring is pre-compressed to support the clamping member, and the pressure wheel at the other end of the clamping member presses the edge of the can lid evenly under the principle of leverage, so that the container is effectively sealed and prevented from being contaminated. This can not only ensure the cleanliness and taste of the tea, but also extend the shelf life of the tea.

[0020] (3) After the tea extraction is completed, the lifting cylinder is responsible for driving the frame rod and the tank cover to perform lifting operations. When the tank cover is in a closed state, the suction cover is located exactly at the inner upper end of the filter cover to ensure that the normal tea extraction process is not affected. After the tea extraction is completed, the frame rod and the tank cover rise with the lifting cylinder. At this time, the sliding sleeve slides along the auxiliary rod and maintains a sealed state through the piston sleeve. After the filter structure is lifted, the suction cover moves to the top of the filter plate. Subsequently, a high-power vacuum suction pump is started, and the negative pressure suction it generates is used to suck the tea leaves on the filter plate through each suction tube, and finally deposit them on the barrier filter element in the barrier cleaner. This ingenious design not only realizes the rapid and automatic suction of tea leaves, significantly improving the cleaning efficiency, but also effectively avoids the risk of secondary pollution that may be caused by manual cleaning through negative pressure suction, reduces the labor burden and difficulty of subsequent cleaning personnel, and ensures the cleanliness and hygiene of the extraction environment.

[0021] (4) During the installation process of the rubber scraper ring of the present invention, the rubber scraper ring is conveniently inserted into the corresponding slots on the outer wall of the installation ring through the multiple T-shaped plugs arranged on the inner wall of the rubber scraper ring, and the sub-buckles on each T-shaped plug are engaged with the female buckle in the slot. This design not only simplifies the installation steps, but also greatly facilitates the removal and replacement of the rubber scraper ring. The design of the rubber scraper ring can scrape off the tea leaves remaining on the inner wall of the filter cover. This function enables it to effectively cooperate with the suction mechanism to perform rapid cleaning operations, thereby significantly improving the overall cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the tank cover and filter structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0025] Figure 4 The present invention Figure 3 The enlarged structural diagram at A in the middle;

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of the suction mechanism and the rubber scraper ring of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of a single pressing assembly, a tea extraction tank and a tank cover of the present invention;

[0028] Figure 7 It is a schematic diagram of the top view of the suction hood, a plurality of suction tubes and a mounting ring of the present invention;

[0029] Figure 8 It is a schematic diagram of the filter plate structure of the present invention.

[0030] Markings in the figure:

[0031] 1. Tea extraction pot; 11. Export pipe; 12. Frame rod; 13. Lifting cylinder; 14. Support; 101. Installation notch;

[0032] 2. Clamping assembly; 21. Reset compression spring; 22. Clamping piece; 23. Assembly seat; 24. Mounting ear; 25. Pressing wheel;

[0033] 3. Tank cover; 31. Press the notch; 32. Install the base;

[0034] 4. Installation frame; 41. Filter plate; 411. Water filter hole; 42. Filter cover; 421. Inlet;

[0035] 5. Sealing assembly; 51. Sealing rubber ring; 52. Sealing convex ring; 501. Head section; 502. End section;

[0036] 6. Suction mechanism; 61. Suction tube; 62. Suction cover; 621. Large-diameter suction port; 63. Sliding sleeve; 64. Auxiliary rod; 65. Piston sleeve; 66. Mounting frame; 67. Vacuum suction pump; 68. Blocking cleaner; 601. Assembly plate; 602. Mounting block;

[0037] 7. Mounting ring; 71. Rubber scraper ring; 711. Scraper; 72. T-shaped plug; 73. Sub-buckle; 74. Slot; 75. Female buckle. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figures 1 to 4 as well as Figure 8 As shown, a circulating tea extraction system comprises a tea extraction tank 1, a tank cover 3 arranged on the top surface of the tea extraction tank 1, a mounting base 32 arranged in the tank cover 3 and an electric valve arranged on the water outlet at the bottom of the tea extraction tank 1, and a guide pipe 11 is connected to the electric valve for discharging the brewed tea;

[0040] Specifically, the outer wall of the tea extraction tank 1 is connected to a support 14, the support 14 is connected to a lifting cylinder 13, the rod body of the lifting cylinder 13 is connected to a frame rod 12, the other end of the frame rod 12 is connected to the tank cover 3, and the lifting cylinder 13 is used to lift the frame rod 12 and the tank cover 3;

[0041] The mounting frame 4 is arranged on the tank cover 3. The bottom inner surface of the port of the mounting frame 4 is connected to a filter plate 41. The filter plate 41 is provided with several water filtering holes 411. A circle of filter screen cover 42 is connected to the surface edge of the filter plate 41. The upper end of the side of the filter screen cover 42 is provided with a delivery port 421. When the present scheme is used, a sufficient amount of tea leaves are directly placed on the filter plate 41 through the delivery port 421. The filter plate 41 is surrounded by the filter screen cover 42. Subsequently, the lifting cylinder 13 is used to drive the frame rod 12 to realize the lifting and lowering of the filter screen structure, and the filter screen structure is placed inside the tea extraction tank 1. This design ensures that the tea leaves are delivered in sufficient quantity at one time, while effectively avoiding the trouble of tea leaves overflowing or falling. When the filter screen structure is lifted, the tea can smoothly flow from the water filtering holes 411 of the filter plate 41 and the side of the filter screen cover 42 into the bottom of the tea extraction tank 1. The two do not interfere with each other, which greatly facilitates the subsequent unified cleaning work.

[0042] like Figure 1 Figure 4 ,and Figure 6 As shown, in this embodiment, an implementation scheme is also provided, including:

[0043] A clamping assembly 2, the clamping assembly 2 comprises a plurality of mounting ears 24 connected to the edge of the outer wall of the top surface of the tea extraction tank 1, a clamping piece 22 rotatably arranged in the port of each mounting ear 24, a pressing wheel 25 rotatably arranged in the port of one end of each pressing piece 22, and a reset spring 21 arranged at the other end of each pressing piece 22. The outer wall of the tea extraction tank 1 is connected to an assembly seat 23, and the other side of each reset spring 21 is respectively connected to the assembly seat 23. A plurality of clamping notches 31 are provided at the edge of the outer wall of the tank cover 3, and each clamping notch 31 corresponds to each pressing wheel 25. The middle part of each clamping notch 31 is concave downward and is matched and connected with the pressing wheel 25. Each clamping piece 22 and the pressing wheel 25 are evenly spaced.

[0044] The sealing component 5 is provided with a mounting notch 101 at the top surface port of the tea extracting tank 1. The sealing component 5 comprises a sealing rubber ring 51 which is fitted and connected to the inner wall of the mounting notch 101 and a sealing convex ring 52 which is connected to the bottom edge of the tank cover 3. The sealing convex ring 52 is divided into a head section 501 and a tail section 502.

[0045] When the present solution is used, after the lifting cylinder 13 is used to drive the frame rod 12 and the can lid 3 to rise and fall, when the can lid 3 is covered and fitted with the tea-brewing can 1, the outer wall surface of the head section 501 of the sealing convex ring 52 and the inner wall surface of the sealing rubber ring 51 are fitted and contacted, and the end section 502 is fitted to the sealing rubber ring 51 and the edge of the top surface port of the tea-brewing can 1, and the clamping components 2 are arranged on the edge of the top surface of the tea-brewing can 1, and the clamping components 2 are evenly distributed. This design allows the can lid 3 to be pressed under the drive of the lifting cylinder 13. The edge of each pressing member 22 is pressed to press the pressing wheel 25 in the port of each pressing member 22 until each pressing wheel 25 is respectively stuck in the middle depression of each pressing notch 31, so that the return compression spring 21 is pre-compressed to support the pressing member 22, and the pressing wheel 25 at the other end of the pressing member 22 presses the edge of the can cover 3 tightly and evenly under the principle of lever, so that the container is effectively sealed to avoid contamination, which can not only ensure the cleanliness and taste of the tea, but also prolong the storage time of the tea;

[0046] like Figure 3 and Figure 5 As shown, in this embodiment, an implementation scheme is also provided, including:

[0047] The suction mechanism 6 includes a plurality of suction tubes 61 inserted into the tank cover 3 and the mounting base 32, a suction cover 62 arranged in the filter cover 42 and connected to each suction tube 61 respectively, a mounting frame 66 arranged outside the tea extraction tank 1, a sliding sleeve 63 fixedly inserted into the middle of the tank cover 3 and the mounting base 32, an auxiliary rod 64 and a vacuum suction pump 67 movably inserted into the sliding sleeve 63 and connected to the top end of the mounting frame 66, a piston sleeve 65 is sleeved on the auxiliary rod 64, the outer wall of the piston sleeve 65 is in contact with the inner wall of the sliding sleeve 63, the other end of the frame rod 12 is connected to the sliding sleeve 63, an isolation cleaner 68 is connected to the input pipeline of the vacuum suction pump 67, an isolation filter element is arranged in the isolation cleaner 68, and each suction tube 61 is respectively connected to the port of the isolation cleaner 68.

[0048] Specifically, an assembly disk 601 is provided on the suction hood 62, and several mounting blocks 602 are connected to the outer edge of the assembly disk 601 and are sleeved on the outer wall of the tube mouth of each suction tube 61. The end of the auxiliary rod 64 is connected to the top surface of the assembly disk 601, and the bottom port of the suction hood 62 expands outward.

[0049] It should be noted that the vacuum suction pump 67 is a high-power type, and the specific model is a commercially available product selected according to the actual needs of the site. The number of suction tubes 61 is selected and installed according to the actual needs of the site. As shown in the figure, the other suction tubes 61 located in the middle position can be installed on the assembly plate 601 to ensure the stability of suction cleaning;

[0050] When this solution is implemented, the lifting cylinder 13 is responsible for driving the frame rod 12 and the tank cover 3 to perform lifting operations. When the tank cover 3 is in a closed state, the suction cover 62 is located exactly at the inner upper end of the filter cover 42 to ensure that the normal tea extraction process is not affected. After the tea extraction is completed, the frame rod 12 and the tank cover 3 rise with the lifting cylinder 13. At this time, the sliding sleeve 63 slides along the auxiliary rod 64 and maintains a sealed state through the piston sleeve 65. After the filter structure is lifted, the suction cover 62 moves to the top of the filter plate 41. Subsequently, the high-power vacuum suction pump 67 is started, and the negative pressure suction it generates is used to suck the tea leaves on the filter plate 41 through each suction tube 61, and finally deposited on the barrier filter element in the barrier cleaner 68. This ingenious design not only realizes the rapid and automatic suction of tea leaves, significantly improves the cleaning efficiency, but also effectively avoids the risk of secondary pollution that may be caused by manual cleaning through negative pressure suction, reduces the labor burden and difficulty of subsequent cleaning personnel, and ensures the cleanliness and hygiene of the extraction environment;

[0051] like Figure 5 and Figure 7 As shown, in this embodiment, another implementation scheme is also provided. Specifically, a mounting ring 7 is connected to the outside of each mounting block 602, and a rubber scraper ring 71 is sleeved on the mounting ring 7. The inner wall surface of the rubber scraper ring 71 is provided with several T-shaped plug blocks 72, and the back of each T-shaped plug block 72 is connected with a sub-buckle 73. The outer wall surface of the mounting ring 7 is provided with a slot 74 corresponding to the position of each T-shaped plug block 72, and the inner wall of each slot 74 is embedded with a female buckle 75. A circle of curved scraper blades 711 is sleeved on the rubber scraper ring 71, and the curved scraper blades 711 are bent toward the bottom surface of the tea extraction pot 1. During the installation process, the rubber scraper ring 71 is conveniently inserted into the corresponding slot 74 of the outer wall of the mounting ring 7 through the multiple T-shaped plug blocks 72 provided on its inner wall, and the sub-buckle 73 on each T-shaped plug block 72 is engaged with the female buckle 75 in the slot 74. Such a design not only simplifies the installation steps, but also greatly facilitates the disassembly and replacement of the rubber scraper ring 71. The rubber scraper ring 71 is designed to scrape off the tea leaves remaining on the inner wall of the filter cover 42. This function enables it to effectively cooperate with the suction mechanism 6 to perform rapid cleaning operations, thereby significantly improving the overall cleaning efficiency.

[0052] like Figures 1 to 8 As shown, in this embodiment, the application document is used to connect the tea extraction tank 1 to an external heat exchanger, a circulation pipeline system and other auxiliary components before implementation. It should be noted that the specific principle of cold extraction is as follows:

[0053] a. Put the tea leaves into the tea extraction pot;

[0054] b. Use a heat exchanger (refrigerant heat exchange) to reduce the temperature of pure water to 10±2℃, and then pump the water into the tea extraction tank;

[0055] c. Use the heat exchanger to pump cold water into the interlayer of the tea extraction tank to stabilize the temperature of the tea extraction at 10±2℃;

[0056] d. The tea soup is circulated to extract the tea leaves. After a certain period of time, the extraction is stopped and the tea soup is poured into a temporary storage tank for mixing. After the tea leaves are cleaned, they are put into the tea extraction again.

[0057] In addition, it should be noted that the application document only improves the step of cleaning tea leaves in the tea extraction system. When cleaning tea leaves in the existing tea extraction system, the tea leaves often stick to and adhere to the filter screen, which not only increases the difficulty of the cleaning workers, but also the tedious manual cleaning may cause pollution, reducing the overall efficiency of tea extraction. It does not involve improvements in other aspects. The working principle of this circulating tea extraction system is introduced as follows:

[0058] When this solution is used, a sufficient amount of tea leaves are placed directly on the filter plate 41 through the delivery port 421, and the filter plate 41 is surrounded by the filter cover 42. Subsequently, the lifting cylinder 13 is used to drive the frame rod 12 to realize the lifting and lowering of the filter structure, and place it inside the tea extraction tank 1. At this time, the tank cover 3 is covered and fits with the tea extraction tank 1. This design ensures that a sufficient amount of tea leaves are delivered at one time, while effectively avoiding the trouble of tea leaves overflowing or falling. When the filter structure is lifted, the tea can smoothly flow from the water filtration hole 411 of the filter plate 41 and the side of the filter cover 42 into the bottom of the tea extraction tank 1, and the two do not interfere with each other, which greatly facilitates the subsequent unified cleaning work.

[0059] When the can lid 3 is closed and fits with the tea brewing can 1, the outer wall surface of the head section 501 of the sealing convex ring 52 and the inner wall surface of the sealing rubber ring 51 are in contact with each other, and the end section 502 is in contact with the sealing rubber ring 51 and the edge of the top port of the tea brewing can 1, and a clamping assembly 2 is arranged on the edge of the top surface of the tea brewing can 1, and the clamping assembly 2 is evenly distributed. This design, under the drive of the lifting cylinder 13, allows the edge of the can lid 3 to press the pressure wheel 25 in the port of each pressure piece 22 until each pressure wheel 25 is stuck in the middle depression of each pressure notch 31, so that the reset compression spring 21, after being compressed in advance, supports the pressure piece 22, and the pressure wheel 25 at the other end of the pressure piece 22, under the principle of leverage, tightly and evenly presses the edge of the can lid 3, so that the container is effectively sealed and prevented from being contaminated, which can not only ensure the cleanliness and taste of the tea, but also extend the shelf life of the tea.

[0060] When the tea extraction is completed, the lifting cylinder 13 is responsible for driving the frame rod 12 and the tank cover 3 to perform lifting operations. When the tank cover 3 is in a closed state, the suction cover 62 is just located at the inner upper end of the filter cover 42 to ensure that the normal tea extraction process is not affected. After the tea extraction is completed, the frame rod 12 and the tank cover 3 rise with the lifting cylinder 13. At this time, the sliding sleeve 63 slides along the auxiliary rod 64 and maintains a sealed state through the piston sleeve 65. After the filter structure is lifted, the suction cover 62 moves to the top of the filter plate 41. Subsequently, the high-power vacuum suction pump 67 is started, and the negative pressure suction generated by it is used to suck the tea leaves on the filter plate 41 through each suction tube 61, and finally deposited on the barrier filter element in the barrier cleaner 68. This ingenious design not only realizes the rapid and automatic suction of tea leaves, significantly improves the cleaning efficiency, but also effectively avoids the risk of secondary pollution that may be caused by manual cleaning through negative pressure suction, reduces the labor burden and difficulty of subsequent cleaning personnel, and ensures the cleanliness and sanitation of the extraction environment.

[0061] In addition, during the installation process, the rubber scraper ring 71 is conveniently inserted into the corresponding slots 74 on the outer wall of the installation ring 7 through the multiple T-shaped plugs 72 provided on the inner wall of the rubber scraper ring 71, and the sub-buckles 73 on each T-shaped plug 72 are engaged with the female buckle 75 in the slot 74. This design not only simplifies the installation steps, but also greatly facilitates the removal and replacement of the rubber scraper ring 71. The design of the rubber scraper ring 71 can scrape off the tea leaves remaining on the inner wall of the filter cover 42. This function enables it to effectively cooperate with the suction mechanism 6 to perform a quick cleaning operation, thereby significantly improving the overall cleaning efficiency.

[0062] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A circulating tea extraction system, comprising a tea extraction tank (1), a tank cover (3) arranged on the top surface of the tea extraction tank (1), a mounting base (32) arranged in the tank cover (3), and an electric valve arranged on the water outlet at the bottom of the tea extraction tank (1), wherein the electric valve is connected to a dewatering pipe (11); It is characterized in that Also includes: The mounting frame (4) is arranged on the tank cover (3); the bottom surface of the port of the mounting frame (4) is connected to a filter plate (41); a plurality of water filtering holes (411) are provided through the filter plate (41); a filter screen cover (42) is connected to the edge of the surface of the filter plate (41); a delivery port (421) is provided at the upper end of the side of the filter screen cover (42).

2. A circulating tea extraction system according to claim 1, characterized in that: The outer wall of the tea extraction pot (1) is connected to a support (14), the support (14) is connected to a lifting cylinder (13), the rod body of the lifting cylinder (13) is connected to a frame rod (12), and the other end of the frame rod (12) is connected to the pot cover (3).

3. A circulating tea extraction system according to claim 1, characterized in that: The invention also comprises: a clamping assembly (2), wherein the clamping assembly (2) comprises a plurality of mounting ears (24) connected to the edge of the outer wall of the top surface of the tea extraction pot (1), a clamping member (22) rotatably arranged in the port of each mounting ear (24), a pressing wheel (25) rotatably arranged in the port of one end of each pressing member (22), and a return spring (21) arranged at the other end of each pressing member (22), the outer wall of the tea extraction pot (1) is connected to an assembly seat (23), the other side of each return spring (21) is respectively connected to the assembly seat (23), and a plurality of clamping notches (31) are provided at the edge of the outer wall of the pot cover (3), and each clamping notch (31) corresponds to each pressing wheel (25).

4. A circulating tea extraction system according to claim 3, characterized in that: The middle part of each of the clamping notches (31) is recessed downwards and is connected to the clamping wheel (25). Each of the clamping members (22) and the clamping wheel (25) is evenly spaced.

5. A circulating tea extraction system according to claim 1, characterized in that: The invention also comprises: a sealing assembly (5), wherein the top surface port of the tea extraction pot (1) is provided with an installation notch (101), and the sealing assembly (5) comprises a circle of sealing rubber ring (51) which is closely connected to the inner wall of the installation notch (101) and a circle of sealing convex ring (52) which is connected to the bottom edge of the pot cover (3), and the sealing convex ring (52) is divided into a head section (501) and a tail section (502); When the can lid (3) is closed, the outer wall surface of the head section (501) of the sealing convex ring (52) is in contact with the inner wall surface of the sealing rubber ring (51), and the end section (502) is in contact with the sealing rubber ring (51) and the edge of the top surface port of the tea extraction can (1).

6. A circulating tea extraction system according to claim 1, characterized in that: The invention also comprises: a suction mechanism (6), the suction mechanism (6) comprising a plurality of suction tubes (61) inserted into the tank cover (3) and the mounting base (32), a suction cover (62) arranged in the filter cover (42) and connected to each suction tube (61), a mounting frame (66) arranged outside the tea extraction tank (1), a sliding sleeve (63) fixedly inserted into the middle of the tank cover (3) and the mounting base (32), an auxiliary rod (64) movably inserted into the sliding sleeve (63) and connected to the mounting frame (66) at the top end, the auxiliary rod (64) being sleeved with a piston sleeve (65), the outer wall of the piston sleeve (65) being in contact with the inner wall of the sliding sleeve (63), and the other end of the frame rod (12) being connected to the sliding sleeve (63).

7. A circulating tea extraction system according to claim 6, characterized in that: The suction mechanism (6) further comprises a vacuum suction pump (67), the input pipeline of the vacuum suction pump (67) is connected to an isolation cleaner (68), an isolation filter element is arranged in the isolation cleaner (68), and each of the suction tubes (61) is respectively connected to a port of the isolation cleaner (68).

8. A circulating tea extraction system according to claim 6, characterized in that: The suction cover (62) is provided with an assembly disk (601), and the outer edge of the assembly disk (601) is connected to a plurality of mounting blocks (602) sleeved on the outer wall surface of the pipe opening of each suction pipe (61), and the end of the auxiliary rod (64) is connected to the top surface of the assembly disk (601).

9. A circulating tea extraction system according to claim 8, characterized in that: The outside of each mounting block (602) is connected to a mounting ring (7), and a rubber scraper ring (71) is sleeved on the mounting ring (7). The inner wall surface of the rubber scraper ring (71) is provided with a plurality of T-shaped plug blocks (72), and the back of each T-shaped plug block (72) is connected with a sub-buckle (73). The outer wall surface of the mounting ring (7) is provided with a slot (74) at a position corresponding to each T-shaped plug block (72), and a female buckle (75) is embedded in the inner wall of each slot (74). A circle of curved scraper blades (711) is sleeved on the rubber scraper ring (71), and the curved scraper blades (711) are bent toward the bottom surface of the tea extraction pot (1).

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