Li medicine tea extraction machine and extraction method thereof

Abstract

The invention discloses a Li medicine tea extraction machine and an extraction method thereof. The Li medicine tea extraction machine comprises a shell, a plurality of storage tanks are arranged at the top of the shell, and inner filtering tanks, a mixing tank and a water adding tank which are in one-to-one correspondence with the storage tanks are arranged in the shell. The inner filter tank comprises an inner filter tank body, a tank cover, a cylindrical filter screen, a spiral conveying rod and a liftable marine riser, a non-return mechanism and a push rod are arranged on the side wall of the marine riser, and a bottom plate is arranged at the lower end of the cylindrical filter screen. During extraction, materials fall into the cylindrical filter screen from the storage tank through the valve device, and after water is injected for heating extraction, extract liquor is fed into the mixing tank for mixing and then is discharged. During deslagging, the marine riser ascends to drive the push rod to trigger the non-return mechanism to unlock the bottom plate, the spiral conveying rod rotates to push residues downwards, the residues fall into the material receiving disc through the side opening, then the marine riser descends, and the non-return mechanism resets to enable the bottom plate to seal the lower end of the cylindrical filter screen again. The device realizes automatic switching extraction of various materials, has an automatic deslagging function, can operate continuously, is convenient to operate, and is sanitary and reliable.

Description

Technical Field

[0001] This invention belongs to the field of tea beverage machine technology, specifically relating to a Li medicine extraction tea beverage machine and its extraction method. Background Technology

[0002] Currently, most beverage extraction equipment on the market, such as tea machines and coffee machines, can only hold a single ingredient (such as tea leaves or coffee), failing to meet users' diverse needs for extracting multiple different ingredients on the same device. When it is necessary to change ingredients, manual cleaning of residue and refilling are often required, which is cumbersome and can easily lead to flavor mixing.

[0003] Furthermore, the existing equipment has a relatively simple extraction chamber structure. After extraction, material residue usually accumulates inside the filter screen, requiring manual disassembly and cleaning, which is time-consuming and labor-intensive. Especially when continuously producing different beverages, the inability to automatically discharge and replace the residue severely affects the automation level of the equipment and the user experience. Therefore, there is an urgent need for a new type of extraction equipment that can automatically switch between multiple materials, automatically clean and discharge extraction residue, and has a compact structure. Summary of the Invention

[0004] The purpose of this invention is to provide a tea extraction machine for Li medicine and its extraction method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a Li medicine extraction tea brewing machine, comprising a housing, a storage tank disposed on the top of the housing, an inner filter tank, a mixing tank and a water adding tank disposed inside the housing, and a valve device disposed between the storage tank and the inner filter tank; The inner filter tank includes an inner filter tank body, with a detachable tank cover installed on the upper part of the inner filter tank body. A hollow cylindrical filter screen is vertically installed inside the inner filter tank body. A spiral conveying rod is installed inside the cylindrical filter screen. A water-proof pipe is sleeved on the outside of the cylindrical filter screen. A bottom plate is installed at the lower end of the cylindrical filter screen and inside the water-proof pipe. A spring is embedded in the side wall of the water-proof pipe. A check mechanism is installed at the upper end of the spring. The check mechanism includes a movable block with a horizontally movable latch inside. A small spring is installed on the outside of the latch. A vertical through hole is opened on the latch, and an inclined block is installed inside the through hole. A push rod is installed on the upper part of the side wall of the water-tight pipe. When the water-tight pipe moves upward to the top, the upper end of the push rod is blocked by the can lid, and the lower end of the push rod presses against the inclined block, causing the latch to move outward. The bottom plate, which was originally placed on the upper side of the latch, is no longer restricted. When the spiral conveyor rotates, the internal items are pushed downward.

[0006] Preferably, the lower end of the movable block is also provided with a pull rod. Pulling the pull rod downward will drive the anti-return mechanism to move downward, so that the locking tongue moves to the lower side of the base plate.

[0007] Preferably, a receiving tray is provided on the lower side of the water-proof pipe.

[0008] Preferably, a side opening is provided on the lower side of the water-proof pipe.

[0009] Preferably, the storage tank includes a storage tank body, and a motor is installed on the upper part of the storage tank body. The motor is connected to the screw conveyor rod through a rotating rod.

[0010] Preferably, the valve device includes a valve body, on which symmetrically arranged fan-shaped valve cores are provided. Grooves are provided on the arc-shaped surface of the valve cores. When the two valve cores are rotated to be aligned, the grooves on both sides form a circular hole for the rotating rod to pass through. A drive motor is provided on the outside of the valve body, and the drive motor is connected to the valve cores on both sides through a transmission box.

[0011] Preferably, the lifting and lowering of the water-proof pipe is driven by an electric telescopic rod. When the water-proof pipe rises to the top, the push rod abuts against the tank cover and triggers the check mechanism to unlock the bottom plate.

[0012] Preferably, the inner filter tank is equipped with a heater and a water injection pipe.

[0013] An extraction method for a Li medicine tea extraction machine includes the following steps: S1. Place different materials into multiple storage tanks located on the top of the shell; S2. Activate the valve device between the target storage tank and the corresponding inner filter tank to allow the material in the storage tank to fall into the cylindrical filter screen of the inner filter tank, and then close the valve device. S3. Add water to the inner filter tank and start the heater inside the inner filter tank to heat the material in the columnar filter screen; S4. After extraction, the liquid is sent from the inner filter tank into the mixing tank and discharged through the discharge pipe at the bottom of the mixing tank. S5. Start the electric telescopic rod to drive the water-blocking pipe to rise, trigger the check mechanism to unlock the bottom plate, start the spiral conveyor rod to rotate and push the material residue in the column filter screen downwards. Then the water-blocking pipe descends, the check mechanism resets and re-closes the bottom plate at the bottom of the column filter screen.

[0014] The technical effects and advantages of this invention are as follows: By setting up multiple independent storage tanks and corresponding internal filter tanks, and by setting up controllable valve devices between the storage tanks and the internal filter tanks, independent storage and on-demand delivery of different materials are realized; different materials can be selected as needed, and the equipment can automatically complete the entire process of feeding, brewing, and extraction, avoiding the trouble of material mixing and frequent manual addition; The inner filter tank uses a cylindrical filter screen in conjunction with a liftable baffle pipe and a check mechanism to achieve automatic discharge of residue after extraction. When the baffle pipe rises to the top, the push rod triggers the check mechanism to unlock the bottom plate. Combined with the rotation of the screw conveyor, the residue inside the cylindrical filter screen is pushed downwards and falls into the receiving tray through the side opening. This process is carried out under the obstruction of the baffle pipe, effectively preventing liquid leakage in the inner filter tank. It enables slag discharge and material replacement without interrupting equipment operation or disassembling parts, greatly improving the efficiency and hygiene of continuous operation. The valve device between the storage tank and the inner filter tank adopts a symmetrically arranged sector-shaped valve core. The groove on the valve core forms a circular hole for the rotating rod to pass through when the valve core rotates to a flush position. This structure not only ensures the transmission of the rotating power of the rotating rod, but also achieves a reliable seal when the valve is closed, effectively controlling the flow of material and ensuring the accuracy of the extraction volume per batch. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the storage tank and inner filter tank structure of the present invention; Figure 4 This is a cross-sectional view of the storage tank and inner filter tank of the present invention; Figure 5 This is a schematic cross-sectional view of the internal filter tank of the present invention; Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a schematic diagram of the anti-return mechanism of the present invention; Figure 8 This is a schematic diagram of the valve device structure of the present invention; Figure 9 This is a schematic diagram of the valve core structure of the present invention.

[0016] In the diagram: 1. Shell; 2. Storage tank; 21. Storage tank body; 22. Motor; 23. Rotating rod; 3. Inner filter tank; 31. Inner filter tank body; 32. Tank cover; 33. Columnar filter screen; 34. Screw conveyor rod; 35. Water-proof pipe; 36. Base plate; 37. Push rod; 38. Check mechanism; 381. Movable block; 382. Locking tongue; 383. Inclined block; 39. Spring; 310. Pull rod; 312. Side opening; 4. Mixing tank; 5. Water tank; 6. Receiving tray; 7. Discharge pipe; 9. Valve device; 91. Valve body; 92. Valve core; 93. Groove; 94. Transmission box; 95. Drive motor; 10. Electric telescopic rod. Detailed Implementation

[0017] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0018] This invention provides, for example Figure 1 and Figure 2 The illustrated tea brewing machine for Li medicine includes a housing 1. Three storage tanks 2 are located on the top of the housing 1. Inside the housing 1 are an inner filter tank 3, a mixing tank 4, and a water tank 5. Each storage tank 2 corresponds to one inner filter tank 3. The storage tanks 2 can hold Li medicine, tea leaves, coffee, etc., with the specific contents determined by actual usage. The items stored in the storage tanks 2 enter the inner filter tank 3 for brewing and extraction. The inner filter tank 3 has a water inlet pipe at its top and a heater inside to heat the water. The brewed and extracted liquid is sent to the mixing tank 4, and after mixing, it is discharged through a discharge pipe 7 at the bottom of the mixing tank 4. A valve device 9 is installed between the storage tanks 2 and the inner filter tank 3 to control the descent of the items in the storage tanks 2.

[0019] like Figures 3-5 As shown, the inner filter tank 3 includes an inner filter tank body 31, with a detachable tank cover 32 installed on the upper part of the inner filter tank body 31. A hollow cylindrical filter screen 33 is vertically arranged inside the inner filter tank body 31. A spiral conveying rod 34 is installed inside the cylindrical filter screen 33. A water-separating pipe 35 is sleeved on the outside of the cylindrical filter screen 33. The water-separating pipe 35 is raised and lowered by an external electric telescopic rod 10. When the water-separating pipe 35 moves to the tank cover 32, it separates the inner and outer parts of the cylindrical filter screen 33. A base plate 36 is installed at the lower end of the cylindrical filter screen 33, inside the water-separating pipe 35. A spring 39 is embedded in the side wall of the water-separating pipe 35, and a check mechanism 38 is installed at the upper end of the spring 39. Figure 6 and Figure 7 The check valve mechanism 38 includes a movable block 381 that can move up and down. Inside the movable block 381, there is a horizontally movable locking tongue 382. A small spring is provided on the outside of the locking tongue 382 to push the locking tongue 382 inward. A vertical through hole is opened on the locking tongue 382, ​​and an inclined block 383 is provided in the through hole. A push rod 37 is provided on the upper part of the side wall of the water-separating pipe 35. When the water-separating pipe 35 moves upward to the top, the upper end of the push rod 37 is blocked by the can cover 32, and the lower end of the push rod 37 will squeeze the inclined block 383 of the check valve mechanism 38. The locking tongue 382 then moves outward, and the bottom plate 36, which was originally placed on the upper side of the locking tongue 382, ​​is no longer restricted. When the spiral conveying rod 34 rotates, the internal items are pushed downward. Due to the blocking effect of the water-separating pipe 35, the solution in the inner filter tank 31 will not leak out, and continuous replacement can be achieved.

[0020] The lower end of the movable block 381 is also provided with a pull rod 310. When the base plate 36 needs to be reinstalled, the pull rod 310 is pulled down, which drives the anti-return mechanism 38 to move down. After the locking tongue 382 moves to the lower side of the base plate 36, the pull rod 310 is released. Under the action of the spring 39, the base plate 36 can move to the bottom of the cylindrical filter screen 33, thereby sealing the lower end of the cylindrical filter screen 33.

[0021] A receiving tray 6 is provided on the lower side of the water-separating pipe 35, and a side opening 312 is provided on the lower side of the water-separating pipe 35. Items discharged from the cylindrical filter screen 33 can be discharged from the side opening 312 and fall into the receiving tray 6.

[0022] Storage tank 2 includes storage tank body 21. A motor 22 is installed on the upper part of storage tank body 21. The motor 22 is connected to screw conveyor 34 through rotating rod 23, and the motor 22 drives screw conveyor 34 to rotate.

[0023] like Figure 8 and Figure 9 The valve device 9 includes a valve body 91, on which fan-shaped valve cores 92 are symmetrically arranged. Grooves 93 are provided on the arc-shaped surface of the valve cores 92. When the two valve cores 92 are rotated to be aligned, the grooves 93 on both sides form a round hole for the rotating rod 23 to pass through. A drive motor 95 is provided on the outside of the valve body 91. The drive motor 95 is connected to the valve cores 92 on both sides through a transmission box 94.

[0024] It should be noted that the cylindrical filter screen 33 can separate materials. During the brewing or extraction process, the rotating spiral conveyor rod 34 can squeeze the materials to make the components in the materials more thoroughly released.

[0025] This invention also provides an extraction method for a Li medicine extraction tea machine, comprising the following steps: I. Preparations and Material Deployment Material storage: According to usage needs, users can put different materials such as Li medicine, tea, coffee and so on into the three storage tanks 2 on the top, and fill the water tank 5 with an appropriate amount of clean water in advance.

[0026] Initial state: The water-separating pipe 35 in each inner filter tank 3 is in the lowered position, the bottom plate 36 is closed at the lower end of the cylindrical filter screen 33 under the support of the locking tongue 382 of the check mechanism 38, and the valve device 9 is in the closed state to prevent material from falling.

[0027] II. Single Extraction Process Taking storage tank 2 as an example, its workflow is as follows: Material feeding: The control system activates the valve device 9 corresponding to the storage tank 2. The drive motor 95 drives the two side fan-shaped valve cores 92 to open through the transmission box 94. The material in the storage tank 2 falls into the inner filter tank 3 below under the action of gravity and enters the cylindrical filter screen 33.

[0028] Water injection and extraction: After the material is fed, the valve device 9 is closed, and the water tank 5 injects a certain amount of clean water into the inner filter tank 31 through the water injection pipe at the top of the inner filter tank 3. The heater inside the inner filter tank 3 is activated to heat the water to the set temperature, and the material in the columnar filter screen 33 is rinsed or extracted. Then the screw conveyor rod 34 is activated to squeeze the material, so that the components in the material are released more thoroughly.

[0029] Liquid delivery: After extraction, the extract passes through the filter screen into the cavity between the inner filter tank 31 and the water separator 35, and is then sent to the mixing tank 4 through the pipeline. If a single material is selected, the mixing tank 4 can be used as a transfer tank; if multiple materials are selected, the mixing tank 4 will receive extracts from different inner filter tanks 3 for mixing.

[0030] Dispensing: After mixing, the finished beverage is dispensed through the discharge pipe 7 at the bottom of the mixing tank 4 for users to drink.

[0031] III. Automatic Residue Discharge and Reset Process After a single extraction is completed, the equipment can automatically clean the material residue inside the cylindrical filter screen 33 to prepare for the next extraction. Rising of the baffle pipe: The electric telescopic rod 10 is activated, driving the baffle pipe 35 to move upward. When the baffle pipe 35 moves to the top, its upper end is close to the tank cover 32. The inner and outer spaces of the cylindrical filter screen 33 are effectively separated by the baffle pipe 35, preventing leakage of residual liquid in the inner filter tank 31 during subsequent slag discharge. It should be noted that the baffle pipe 35 acts as a water barrier, so slag discharge can still be carried out even if there is liquid in the inner filter tank 3.

[0032] Bottom plate unlocking: When the water pipe 35 rises to its limit position, the upper end of the push rod 37 installed on its side wall is blocked by the can cover 32, and the lower end of the push rod 37 presses down on the inclined block 383 of the check mechanism 38. When the inclined block 383 moves down, it pushes the locking tongue 382 to overcome the elastic force of the small spring and move laterally to the outside. The locking tongue 382 releases its support for the bottom plate 36.

[0033] Slag discharge: After the bottom plate 36 loses its support, the motor 22 of the storage tank 2 starts and drives the screw conveyor 34 to rotate through the rotating rod 23. The screw conveyor 34 pushes the material residue inside the cylindrical filter screen 33 downward. After the bottom plate 36 is unlocked, the residue is discharged from the side opening 312 on the lower side of the water-proof pipe 35 and falls into the receiving tray 6 below.

[0034] Bottom plate reset: After slag discharge, the electric telescopic rod 10 drives the water-sealing pipe 35 to descend. Before or during descent, if it is necessary to re-close the bottom of the cylindrical filter screen 33, the operator or automatic mechanism pulls down the pull rod 310, causing the check mechanism 38 to move down as a whole, so that the locking tongue 382 moves below the bottom plate 36. Then, the pull rod 310 is released, and under the elastic force of the spring 39, the check mechanism 38 resets upward, and the locking tongue 382 pushes the bottom plate 36 back to the bottom of the cylindrical filter screen 33, completing the bottom closure. The equipment returns to its initial state and can be used for the next extraction.

[0035] IV. Continuous material switching process When you need to make different drinks in succession: The equipment can sequentially perform extraction operations corresponding to different storage tanks 2 according to the above process. Since each storage tank 2 is equipped with an independent internal filter tank 3 and a slag discharge mechanism, the extraction residue of the previous material can be automatically discharged before the next material is fed, effectively avoiding cross-contamination and cross-infection of materials.

[0036] The liquid extracted from each inner filter tank 3 can be mixed in proportion in the mixing tank 4 according to the preset formula to make a variety of compound flavored beverages of Li medicine, tea or coffee.

[0037] It should be noted that when brewing coffee, a cylindrical filter paper tube needs to be placed on the base plate 36. The coffee grounds fall into the filter paper tube, and when removing the grounds, the filter paper tube is discharged together with them.

[0038] Through the above process, the Benli herbal tea extraction machine achieves full automation from material storage, automatic feeding, heating and extraction, automatic residue cleaning to multi-material mixing, significantly improving the ease of operation and continuous operation capability.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A tea brewing machine for extracting Li medicinal herbs, comprising a housing (1), characterized in that: A storage tank (2) is provided on the top of the shell (1), and an inner filter tank (3), a mixing tank (4) and a water tank (5) are provided inside the shell (1). A valve device (9) is provided between the storage tank (2) and the inner filter tank (3). The inner filter tank (3) includes an inner filter tank body (31), a tank cover (32) is detachably installed on the upper part of the inner filter tank body (31), a hollow cylindrical filter screen (33) is vertically arranged inside the inner filter tank body (31), a spiral conveying rod (34) is arranged inside the cylindrical filter screen (33), and a water-proof pipe (35) is sleeved on the outside of the cylindrical filter screen (33); a bottom plate (36) is arranged at the lower end of the cylindrical filter screen (33) and inside the water-proof pipe (35), a spring (39) is embedded in the side wall of the water-proof pipe (35), and a check mechanism (38) is arranged at the upper end of the spring (39); The check mechanism (38) includes a movable block (381), inside which is a horizontally movable latch (382), and a small spring is provided on the outside of the latch (382). A through hole is vertically opened on the latch (382), and a slope block (383) is provided in the through hole. A push rod (37) is provided on the upper part of the side wall of the water-tight pipe (35). When the water-tight pipe (35) moves upward to the top, the upper end of the push rod (37) is blocked by the can lid (32), and the lower end of the push rod (37) presses the slope block (383), and the latch (382) moves outward. The bottom plate (36) originally placed on the upper side of the latch (382) is no longer restricted. When the spiral conveyor rod (34) rotates, the internal items are pushed downward.

2. The herbal tea extraction machine according to claim 1, characterized in that: The lower end of the movable block (381) is also provided with a pull rod (310). Pulling the pull rod (310) downward will drive the anti-return mechanism (38) to move downward, so that the locking tongue (382) moves to the lower side of the base plate (36).

3. The herbal tea extraction machine according to claim 1, characterized in that: A receiving tray (6) is provided on the lower side of the water-proof pipe (35).

4. The herbal tea extraction machine according to claim 1, characterized in that: A side opening (312) is provided on the lower side of the water-proof pipe (35).

5. The herbal tea extraction machine according to claim 1, characterized in that: The storage tank (2) includes a storage tank body (21), and a motor (22) is installed on the upper part of the storage tank body (21). The motor (22) is connected to the screw conveyor (34) through a rotating rod (23).

6. The Li medicine extraction tea brewing machine according to claim 1, characterized in that: The valve device (9) includes a valve body (91), on which fan-shaped valve cores (92) are symmetrically arranged. Grooves (93) are provided on the arc surface of the valve cores (92). When the valve cores (92) on both sides are rotated and aligned, the grooves (93) on both sides form a round hole for passing through the rotating rod (23). A drive motor (95) is provided on the outside of the valve body (91). The drive motor (95) is connected to the valve cores (92) on both sides through the transmission box (94).

7. A tea-making machine for extracting Li medicinal herbs according to claim 1, characterized in that: The lifting and lowering of the water-proof pipe (35) is driven by an electric telescopic rod (10). When the water-proof pipe (35) rises to the top, the push rod (37) abuts against the tank cover (32) and triggers the check mechanism (38) to unlock the bottom plate (36).

8. A tea-making machine for extracting Li medicinal herbs according to claim 1, characterized in that: A heater and a water injection pipe are provided on the inner filter tank (3).

9. An extraction method for a Li medicine tea extraction machine, characterized in that, Includes the following steps: S1. Place different materials into multiple storage tanks (2) located on the top of the shell (1); S2. Activate the valve device (9) between the target storage tank (2) and the corresponding inner filter tank (3) to allow the material in the storage tank (2) to fall into the cylindrical filter screen (33) of the inner filter tank (3), and then close the valve device (9). S3. Add water to the inner filter tank (3) and start the heater inside the inner filter tank (3) to heat the material in the column filter screen (33); S4. The extracted liquid is sent from the inner filter tank (3) into the mixing tank (4) and discharged through the discharge pipe (7) at the bottom of the mixing tank (4). S5. Start the electric telescopic rod (10) to drive the water-blocking pipe (35) to rise, trigger the check mechanism (38) to unlock the bottom plate (36), start the spiral conveyor rod (34) to rotate and push the material residue in the columnar filter screen (33) downward. Then the water-blocking pipe (35) descends, the check mechanism (38) resets and re-closes the bottom plate (36) at the bottom of the columnar filter screen (33).

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