Oolong tea filtering device with pretreatment function

Abstract

The oolong tea filtering device with the pretreatment function comprises a filtering box, filter screen plates are jointly slidably mounted on the inner walls of the two sides of the filtering box through sliding grooves, gauze is fixedly mounted on the upper end faces of the filter screen plates, a collecting frame is fixedly mounted in the filtering box, and a first toothed plate is fixedly mounted on the bottom wall of each filter screen plate; a sliding opening matched with the filter screen plate and the first toothed plate is formed in the outer wall of the filter box, a rotating rod is rotationally installed on the outer wall of the filter box in a penetrating mode, and the end of the rotating rod is connected with the first toothed plate through a first rotating mechanism. According to the tea leaf cleaning device, the screw, the limiting rod, the connecting rod, the cleaning brush and other assemblies are arranged, the screw can drive the moving block to move through cooperation with the limiting rod when rotating, at the moment, the moving block can drive the cleaning brush to move through cooperation with the connecting rod, and therefore the cleaning brush can clean tea leaves on the upper end face of the gauze; therefore, the influence of tea accumulation on the liquidity of tea soup is avoided.

Description

Technical Field

[0001] This invention relates to the field of oolong tea beverage production technology, and in particular to an oolong tea filtration device with pretreatment function. Background Technology

[0002] In the production process of oolong tea beverages, the main purpose of filtration is to remove impurities and tea leaves from the tea leaves, so as to avoid these impurities from having a negative impact on the taste and appearance of the beverage. Filtration can also improve the clarity and transparency of the beverage, making it more in line with consumer expectations.

[0003] In existing technologies, when filtering oolong tea, the tea leaves and tea residue need to be coarsely filtered first. During coarse filtration, a filter screen and gauze are usually used together. When filtering a large amount of oolong tea, the tea leaves will accumulate on the upper surface of the gauze. When a large amount of tea leaves accumulate, it will affect the flow of tea soup through the gauze, reduce the filtration efficiency of oolong tea, and thus reduce the production efficiency of oolong tea beverages. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pre-treatment oolong tea filtration device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A tea filtration device with pretreatment function includes a filter box. Filter screens are slidably mounted on both inner walls of the filter box via sliding grooves. Gauze is fixedly mounted on the upper surface of the filter screens. A collection frame is fixedly mounted inside the filter box. A first toothed plate is fixedly mounted on the bottom wall of the filter screens. A sliding opening that mates with the filter screens and the first toothed plate is opened on the outer wall of the filter box. A rotating rod is rotatably mounted through the outer wall of the filter box. The end of the rotating rod is connected to the first toothed plate via a first rotating mechanism. A rocker wheel is fixedly mounted on the outer wall of the rotating rod. A first rotating shaft is fixedly mounted on the outer wall of the filter box via a first connecting frame. A first connecting sleeve is rotatably mounted on the outer wall of the first rotating shaft via a torque mechanism. A first sealing plate is fixedly connected to the outer wall of the first connecting sleeve via a first connecting rod. A first sealing gasket is fixedly installed on the inner wall of the first sealing plate. A feeding hopper communicating with the interior is fixedly installed on the upper end face of the filter box. A screw is rotatably installed on the outer wall of the filter box via a moving frame. A first motor connected to the screw is fixedly installed on the outer wall of the moving frame. Two moving blocks are rotatably installed on the outer wall of the screw. A limit rod is fixedly installed inside the moving frame. The limit rod slides through the two moving blocks. A cleaning brush is fixedly connected to the upper end face of one of the moving blocks via a connecting mechanism, and a second toothed plate is fixedly installed on the upper end face of the other moving block. A cleaning opening that mates with the cleaning brush is provided on the outer wall of the filter box. A second rotating shaft is rotatably installed on the outer wall of the filter box via a second connecting frame, and the outer wall of the second rotating shaft is connected to the second toothed plate via a second rotating mechanism.

[0006] Preferably, the first rotating mechanism includes a first gear fixedly mounted on the end of the rotating rod, and the first gear meshes with a first toothed plate.

[0007] Preferably, the torque mechanism includes two torsion springs installed on the outer wall of the first rotating shaft, with the two ends of the two torsion springs elastically connected to the outer wall of the first rotating shaft and the inner wall of the first connecting sleeve, respectively.

[0008] Preferably, the connecting mechanism includes a connecting rod fixedly installed on the upper surface of the movable block, the end of the connecting rod being fixedly connected to the upper surface of the cleaning brush, and the outer wall of the filter box having a movable opening that cooperates with the connecting rod.

[0009] Preferably, the second rotating mechanism includes a second gear fixedly mounted on the outer wall of the second rotating shaft, and the second gear meshes with the second gear plate.

[0010] Preferably, a collection bucket that mates with a collection frame is slidably installed on the outer wall of the filter box through a pull-out opening, a limiting plate is fixedly installed inside the collection bucket, and a filter hopper is slidably installed on the upper surface of the limiting plate.

[0011] Preferably, a second connecting sleeve is fixedly installed on the outer wall of the second rotating shaft, a second sealing plate is fixedly connected to the outer wall of the second connecting sleeve via a second connecting rod, a second sealing gasket is fixedly installed on the inner wall of the second sealing plate, a guide frame that mates with the cleaning opening is fixedly installed on the outer wall of the filter box, a sliding sleeve is fixedly installed on the outer wall of the filter box, a slider is slidably installed inside the sliding sleeve, and a collection box is fixedly installed at the end of the slider.

[0012] Preferably, a first cylinder is fixedly mounted on the upper surface of the filter box via a first mounting frame, and a first telescopic opening is provided on the upper surface of the filter box to cooperate with the telescopic end of the first cylinder. A pressing plate is fixedly connected to the telescopic end of the first cylinder. A push plate is slidably mounted inside the filter box via a mounting groove. A second cylinder is fixedly mounted on the outer wall of the filter box via a second mounting frame, and a second telescopic opening is provided on the outer wall of the filter box to cooperate with the second cylinder. The telescopic end of the second cylinder is fixedly connected to the outer wall of the push plate.

[0013] Preferably, a rotating pipe is rotatably installed through the upper end face of the filter box, a spray pipe is fixedly installed on the outer wall of the rotating pipe, a plurality of spray nozzles communicating with the interior are fixedly installed on the outer wall of the spray pipe, a connecting sleeve is rotatably installed on the outer wall of the rotating pipe, and a water inlet pipe is fixedly installed inside the connecting sleeve.

[0014] Preferably, a second motor is fixedly installed on the upper end face of the filter box via a support plate. The output shaft of the second motor and the outer wall of the rotating tube are both fixedly installed with pulleys. The two pulleys are connected by a belt for transmission. An indicator arrow is fixedly installed on the outer wall of the rotating tube. An indicator block that cooperates with the indicator arrow is fixedly installed on the upper end face of the filter box.

[0015] The beneficial effects of this invention are: 1. By setting up components such as a screw, a limiting rod, a connecting rod, and a cleaning brush, the screw can drive the moving block to move when it rotates through cooperation with the limiting rod. At this time, the moving block can drive the cleaning brush to move through cooperation with the connecting rod. This allows the cleaning brush to clean the tea leaves on the upper surface of the gauze, thereby preventing the accumulation of tea leaves from affecting the flow of the tea soup.

[0016] 2. By setting up components such as a first cylinder, a pressing plate, a second cylinder, and a push plate, the first cylinder can drive the pressing plate to move downwards to press the tea leaves below, thereby squeezing out the tea soup inside the tea leaves and avoiding waste of tea soup. After the pressing plate is reset, the second cylinder can drive the push plate to move and scrape off the tea leaves adhering to the bottom wall of the pressing plate.

[0017] 3. By setting up components such as torsion springs, a first sealing plate, and a first sealing gasket, the first sealing plate can drive the first sealing gasket to block and seal the sliding opening under the elastic compression of the two torsion springs, thereby preventing tea soup from seeping out of the sliding opening.

[0018] 4. By setting up components such as pulleys, rotating pipes, spray pipes and nozzles, the second motor can drive the rotating pipe to rotate through two pulleys connected by a belt. The rotating pipe then drives the spray pipes and multiple nozzles to rotate, thereby spraying rinsing water while rotating, which can increase the cleaning effect inside the filter box. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an oolong tea filtration device with pretreatment function proposed in this invention; Figure 2 for Figure 1 A schematic diagram of the vertical section structure; Figure 3 This is a side view of an oolong tea filtration device with pretreatment function proposed in this invention. Figure 4 for Figure 3A schematic diagram of the vertical section structure; Figure 5 This is a schematic diagram of the back structure of an oolong tea filtration device with pretreatment function proposed in this invention; Figure 6 for Figure 5 A schematic diagram of the vertical section structure; Figure 7 This is a top-view cross-sectional view of an oolong tea filtration device with pretreatment function proposed in this invention. Figure 8 This is a schematic diagram of the bottom cross-section of an oolong tea filtration device with pretreatment function proposed in this invention; Figure 9 for Figure 2 Enlarged schematic diagram of the structure at point A in the diagram; Figure 10 for Figure 4 Enlarged schematic diagram of the structure at point B in the diagram; Figure 11 for Figure 5 Enlarged schematic diagram of the structure at point C; Figure 12 for Figure 6 Enlarged schematic diagram of the structure at point D; Figure 13 for Figure 7 Enlarged schematic diagram of the structure at point E in the diagram; Figure 14 for Figure 8 Enlarged schematic diagram of the structure at point F.

[0020] In the diagram: 1. Filter box, 2. Filter screen plate, 3. Gauze, 4. Collection frame, 5. Collection bucket, 6. Limiting plate, 7. Filter hopper, 8. First toothed plate, 9. Rotating rod, 10. First gear, 11. Rocker wheel, 12. First connecting frame, 13. First rotating shaft, 14. Torsion spring, 15. First connecting sleeve, 16. First connecting rod, 17. First sealing plate, 18. First sealing gasket, 19. Feeding hopper, 20. Moving frame, 21. Screw, 22. First motor, 23. Limiting rod, 24. Moving block, 25. Connecting rod, 26. Cleaning brush, 27. Second toothed plate, 28. Second... 29 Connecting frame, 30 Second rotating shaft, 31 Second gear, 32 Second connecting sleeve, 33 Second connecting rod, 34 Second sealing plate, 35 Second sealing gasket, 36 Guide frame, 37 Sliding sleeve, 38 Sliding block, 39 Collection box, 40 First mounting frame, 41 First cylinder, 42 Extrusion plate, 43 Second mounting frame, 44 Second cylinder, 45 Push plate, 46 Rotating pipe, 47 Spray pipe, 48 Spray head, 49 Connecting sleeve, 50 Water inlet pipe, 51 Support plate, 52 Second motor, 53 Pulley, 54 Indicating arrow, 55 Indicating block. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] Reference Figure 1-14 A tea filtration device with pretreatment function includes a filter box 1. Filter screen plates 2 are slidably installed on both inner walls of the filter box 1 via sliding grooves. Gauze 3 is fixedly installed on the upper surface of the filter screen plates 2. A collection frame 4 is fixedly installed inside the filter box 1. The shape of the collection frame 4 is designed to facilitate the collection of tea soup inside, allowing the tea soup to flow downwards from its outlet. A collection bucket 5 that cooperates with the collection frame 4 is slidably installed on the outer wall of the filter box 1 through a pull-out opening. A limiting plate 6 is fixedly installed inside the collection bucket 5. A filter hopper 7 is slidably installed on the upper surface of the limiting plate 6. A first toothed plate 8 is fixedly installed on the bottom wall of the filter screen plates 2. A sliding opening that cooperates with the filter screen plates 2 and the first toothed plate 8 is opened on the outer wall of the filter box 1. Furthermore, the double-layer filtration structure composed of filter plate 2 and gauze 3 can initially intercept tea residue in oolong tea, while the filter hopper 7 can further filter the tea soup flowing down through the collection frame 4, improving the purity of the tea soup. The opening of the sliding opening provides the necessary space for the movement of filter plate 2 and first toothed plate 8, ensuring the smooth operation of subsequent component adjustment.

[0023] A rotating rod 9 is rotatably installed through the outer wall of the filter box 1. The end of the rotating rod 9 is connected to the first toothed plate 8 through a first rotating mechanism. The first rotating mechanism includes a first gear 10 fixedly installed at the end of the rotating rod 9. The first gear 10 meshes with the first toothed plate 8. A rocker wheel 11 is fixedly installed on the outer wall of the rotating rod 9. A first rotating shaft 13 is fixedly installed on the outer wall of the filter box 1 through a first connecting frame 12. A first connecting sleeve 15 is rotatably installed on the outer wall of the first rotating shaft 13 through a torque mechanism. The torque mechanism includes a torsion spring 14 installed on the outer wall of the first rotating shaft 13. The two ends of the two torsion springs 14 are elastically connected to the outer wall of the first rotating shaft 13 and the inner wall of the first connecting sleeve 15, respectively. Furthermore, by driving the rotating rod 9 to rotate through the rocker wheel 11, the filter plate 2 can be easily adjusted by the meshing relationship between the first gear 10 and the first toothed plate 8. Meanwhile, the torsion spring 14 can provide a stable elastic force for the first connecting sleeve 15, ensuring that the subsequent sealing structure can fit tightly against the corresponding opening and guaranteeing the sealing performance of the device.

[0024] The outer wall of the first connecting sleeve 15 is fixedly connected to the first sealing plate 17 via the first connecting rod 16. The inner wall of the first sealing plate 17 is fixedly installed with the first sealing gasket 18. The upper end face of the filter box 1 is fixedly installed with the feeding hopper 19 communicating with the interior. The shape design of the feeding hopper 19 is conducive to the pouring of oolong tea raw materials. The outer wall of the filter box 1 is rotatably installed with the screw 21 via the moving frame 20. The outer wall of the moving frame 20 is fixedly installed with the first motor 22 connected to the screw 21. The outer wall of the screw 21 is rotatably installed with two moving blocks 24. The moving frame 20 is fixedly installed with the limiting rod 23. The limiting rod 23 slides through the two moving blocks 24. The limiting rod 23 can restrict the two moving blocks 24, so that the two moving blocks 24 can only move axially along the outer wall of the screw 21. Furthermore, the cooperation between the first sealing plate 17 and the first sealing gasket 18 can effectively seal the sliding opening and prevent tea leakage. The structural design of the feeding hopper 19 reduces the difficulty of adding raw materials. The limitation of the moving block 24 by the limiting rod 23 can ensure that the moving block 24 moves stably under the drive of the screw 21, avoiding deviation that may affect subsequent cleaning or transmission operations.

[0025] One of the movable blocks 24 has a cleaning brush 26 fixedly connected to its upper end face via a connecting mechanism. The connecting mechanism includes a connecting rod 25 fixedly installed on the upper end face of the movable block 24. The end of the connecting rod 25 is fixedly connected to the upper end face of the cleaning brush 26. The outer wall of the filter box 1 has a movable opening that cooperates with the connecting rod 25. Another movable block 24 has a second toothed plate 27 fixedly installed on its upper end face. The outer wall of the filter box 1 has a cleaning opening that cooperates with the cleaning brush 26. The inner bottom wall of the cleaning opening is on the same horizontal line as the upper end face of the gauze 3 to avoid the difference in height between the two affecting the cleaning and discharge of tea leaves. The outer wall of the filter box 1 is rotatably mounted with a second rotating shaft 29 via a second connecting frame 28. The outer wall of the second rotating shaft 29 is connected to the second toothed plate 27 via a second rotating mechanism. The second rotating mechanism includes a second gear 30 fixedly installed on the outer wall of the second rotating shaft 29. The second gear 30 meshes with the second toothed plate 27. Furthermore, the connecting rod 25 enables a stable connection between the moving block 24 and the cleaning brush 26, ensuring that the moving block 24 can move synchronously to drive the cleaning brush 26 to clean the tea leaves on the surface of the gauze 3. The horizontal design of the cleaning opening and the gauze 3 ensures that the tea leaves can be discharged smoothly. The meshing transmission between the second toothed plate 27 and the second gear 30 provides a power transmission path for the subsequent linkage adjustment of the sealing structure.

[0026] A second connecting sleeve 31 is fixedly installed on the outer wall of the second rotating shaft 29. A second sealing plate 33 is fixedly connected to the outer wall of the second connecting sleeve 31 through a second connecting rod 32. A second sealing gasket 34 is fixedly installed on the inner wall of the second sealing plate 33. Both the first sealing gasket 18 and the second sealing gasket 34 are made of food-grade silicone. Silicone has good thermal and chemical stability and does not react with any substance except strong alkali and hydrofluoric acid. It is non-toxic and odorless and will not contaminate oolong tea. Furthermore, the choice of food-grade silicone material ensures that the sealing gasket will not produce harmful substances during contact with tea, thus guaranteeing the safety of the beverage. The cooperation between the second connecting sleeve 31 and the second connecting rod 32 enables the connection between the second rotating shaft 29 and the second sealing plate 33, allowing the second sealing plate 33 to seal or open the cleaning opening as the second rotating shaft 29 rotates.

[0027] A guide frame 35 that matches the cleaning opening is fixedly installed on the outer wall of the filter box 1. A sliding sleeve 36 is fixedly installed on the outer wall of the filter box 1. A slider 37 is slidably installed inside the sliding sleeve 36. The shape design of the inside of the sliding sleeve 36 and the outer wall of the slider 37 can increase the reliability of the connection between the slider 37 and the sliding sleeve 36. A collection box 38 is fixedly installed at the end of the slider 37. Furthermore, the guide frame 35 can guide the tea leaves discharged from the cleaning opening, so that the tea leaves fall accurately into the collection box 38. The matching structure of the sliding sleeve 36 and the slider 37 facilitates the installation and disassembly of the collection box 38. When the tea leaves in the collection box 38 accumulate to a certain extent, the collection box 38 can be easily pulled out for cleaning, improving the convenience of using the device.

[0028] A first cylinder 40 is fixedly mounted on the upper end face of the filter box 1 via a first mounting frame 39. A first telescopic opening is provided on the upper end face of the filter box 1 to cooperate with the telescopic end of the first cylinder 40. The design of the first telescopic opening can improve the smoothness of the telescopic end of the first cylinder 40 during telescopic movement. A pressing plate 41 is fixedly connected to the telescopic end of the first cylinder 40. A push plate 44 is slidably mounted inside the filter box 1 via a mounting groove. When the push plate 44 is inside the mounting groove, its outer wall is on the same plane as the inner wall of the filter box 1, thereby preventing the push plate 44 from extending and affecting the up and down movement of the pressing plate 41. Furthermore, the first cylinder 40 drives the extrusion plate 41 to move up and down, which can squeeze the tea leaves accumulated on the surface of the gauze 3, fully squeeze out the residual tea soup in the tea leaves, reduce waste. The design of the push plate 44 and the mounting groove not only ensures that the push plate 44 will not interfere with the normal operation of the extrusion plate 41 when it is not in use, but also prepares for subsequent cleaning of the tea leaves adhering to the surface of the extrusion plate 41.

[0029] A second cylinder 43 is fixedly mounted on the outer wall of the filter box 1 via a second mounting frame 42. A second telescopic opening is provided on the outer wall of the filter box 1 to cooperate with the second cylinder 43. The design of the second telescopic opening can improve the smoothness of the telescopic end of the second cylinder 43 during telescopic movement. The telescopic end of the second cylinder 43 is fixedly connected to the outer wall of the push plate 44. Furthermore, the second cylinder 43 provides power for the movement of the push plate 44. After the extrusion plate 41 completes the tea extrusion and resets, the second cylinder 43 can push the push plate 44 to move, scraping off the tea leaves adhering to the bottom wall of the extrusion plate 41, ensuring the cleanliness of the extrusion plate 41 for the next use. At the same time, it can also push the scraped tea leaves to a designated position for subsequent collection and processing.

[0030] A rotating pipe 45 is rotatably installed through the upper end face of the filter box 1. A spray pipe 46 is fixedly installed on the outer wall of the rotating pipe 45. Multiple spray nozzles 47 communicating with the interior are fixedly installed on the outer wall of the spray pipe 46. A connecting sleeve 48 is rotatably installed on the outer wall of the rotating pipe 45. An inlet pipe 49 is fixedly installed inside the connecting sleeve 48. The rotating pipe 45 can rotate inside the connecting sleeve 48, so the two are rotatably connected. Therefore, when the rotating pipe 45 rotates, the inlet pipe 49 is in a stationary state, which can avoid the twisting of the inlet pipe 49. Furthermore, the water inlet pipe 49 can be connected to a clean water source. The water source enters the spray pipe 46 through the connecting sleeve 48 and the rotating pipe 45, and is then sprayed out through the nozzle 47 to clean the inside of the filter box 1. The rotating connection design between the rotating pipe 45 and the connecting sleeve 48 ensures that the water inlet pipe 49 will not be twisted or damaged when the rotating pipe 45 drives the spray pipe 46 to rotate for cleaning, thus ensuring the stable progress of the cleaning process.

[0031] A second motor 51 is fixedly mounted on the upper surface of the filter box 1 via a support plate 50. Both the output shaft of the second motor 51 and the outer wall of the rotating tube 45 are fixedly mounted with pulleys 52. The two pulleys 52 are connected by a belt for transmission. An indicator arrow 53 is fixedly mounted on the outer wall of the rotating tube 45. An indicator block 54, which mates with the indicator arrow 53, is fixedly mounted on the upper surface of the filter box 1. When the indicator arrow 53 points to the indicator block 54, the position of the spray pipe 46 is... Figure 2 As shown, this avoids the spray pipe 46 extending and affecting the lifting and lowering of the extrusion plate 41; Furthermore, when the second motor 51 is working, it can drive the rotating tube 45 to rotate through the transmission action of the pulley 52 and the belt, thereby causing the spray pipe 46 and the nozzle 47 to rotate, achieving a comprehensive cleaning of the inside of the filter box 1. The cooperation between the indicator arrow 53 and the indicator block 54 provides a clear indication for the reset of the spray pipe 46, ensuring that the spray pipe 46 can return to a position that does not affect the operation of the extrusion plate 41 after cleaning, and ensuring that the operation of each component of the device does not interfere with each other.

[0032] When this invention is used, all electronic devices (first motor 22, first cylinder 40, second cylinder 43, second motor 51) are centrally controlled by an external controller, which can realize the fully automated operation of oolong tea pretreatment filtration, tea cleaning and recycling, and equipment self-cleaning without a large amount of manual intervention, significantly improving the ease of operation and production efficiency. In the pretreatment filtration stage, the operator pours the brewed oolong tea into the filter box 1 through the feeding hopper 19. At this time, the filter screen plate 2 in the filter box 1 and the gauze 3 fixed at the top form a double-layer filtration structure, which can directly intercept the tea residue in the oolong tea and complete the pretreatment filtration of the oolong tea. The filtered clear tea soup will flow downward through the gap between the gauze 3 and the filter screen plate 2, first collecting in the collection frame 4 fixed inside the filter box 1, and then accurately flowing through the outlet of the collection frame 4 to the collection bucket 5 slidably installed on the outer wall of the filter box 1. During this process, the filter bucket 7 supported by the limiting plate 6 inside the collection bucket 5 will perform secondary fine filtration of the tea soup, effectively filtering out the fine sediment in the tea soup and further ensuring the purity of the tea soup. When tea leaves accumulate on the upper surface of the gauze 3 to the point of affecting the flow of tea soup, the controller starts the first motor 22, which drives the screw 21 in the moving frame 20 to rotate. With the cooperation of the limiting rod 23 (which passes through the two moving blocks 24 and restricts their movement only along the axial direction), the screw 21 drives the two moving blocks 24 to move synchronously. One of the moving blocks 24 drives the cleaning brush 26 to slide along the surface of the gauze 3 through the connecting rod 25, sweeping the tea leaves to the area directly below the extrusion plate 41. The other moving block 24 drives the second toothed plate 27 to move. Through the meshing of the second toothed plate 27 and the second gear 30, the second rotating shaft 29 (installed in the second connecting frame 28) is driven to rotate. This, in turn, drives the second sealing plate 33 to rotate through the second connecting sleeve 31 and the second connecting rod 32, causing the second sealing gasket 34 to disengage from the cleaning opening and remove the obstruction to the cleaning opening. After the cleaning opening is opened, the controller starts the first cylinder 40. Its telescopic end passes through the first telescopic opening and drives the extrusion plate 41 to move downwards, thus clearing the tea leaves from the lower part of the cylinder. The accumulated tea leaves are squeezed to fully squeeze out the residual tea soup inside the tea leaves (the squeezed tea soup still flows into the collection frame 4 through gauze 3 and filter screen 2) to avoid tea soup waste. After the squeezing is completed, the first cylinder 40 drives the squeezing plate 41 to reset. The controller then starts the second cylinder 43. Its telescopic end passes through the second telescopic opening to drive the push plate 44 to move. The push plate 44 is in close contact with the bottom wall of the squeezing plate 41 to scrape off the tea leaves adhering to the squeezing plate 41. After scraping is completed, the second cylinder 43 drives the push plate 44 to retract into the installation groove (to avoid interfering with subsequent actions). Then the screw 21 continues to rotate. The cleaning brush 26 pushes the squeezed tea residue through the cleaning opening to the guide frame 35. The tea residue slides down the guide frame 35 into the collection box 38. After the tea residue is collected, the controller controls the first motor 22 to reverse and drive the cleaning brush 26 to reset. At the same time, the second toothed plate 27 meshes with the second gear 30 in the opposite direction, so that the second sealing plate 33 drives the second sealing gasket 34 to cover and seal the cleaning opening again. When deep cleaning and disinfection of the filter screen 2 and gauze 3 is required, the operator can manually rotate the rocker wheel 11, which drives the rotating rod 9 to rotate. The first gear 10 at the end of the rotating rod 9 rotates accordingly and meshes with the first toothed plate 8 on the bottom wall of the filter screen 2, driving the filter screen 2 to slide along the sliding groove on the inner wall of the filter box 1 and move out of the box through the sliding opening. During this process, the filter screen 2 will squeeze the first sealing plate 17, causing the first sealing plate 17 to drive the first connecting sleeve 15 outside the first rotating shaft 13 (installed on the first connecting frame 12) through the first connecting rod 16. The wall rotates, simultaneously squeezing two torsion springs 14. By continuously rotating the rocker wheel 11, the filter screen 2 and gauze 3 can be completely removed from the filter box 1 for cleaning. After cleaning, the rocker wheel 11 is reversed, and the first gear 10 meshes with the first toothed plate 8 in the opposite direction, driving the filter screen 2 and gauze 3 back into the filter box 1 along the slide groove. At this time, the two torsion springs 14 release their elastic force, pushing the first connecting sleeve 15 and the first connecting rod 16 to reset the first sealing plate 17, so that the first sealing gasket 18 tightly covers and seals the sliding opening to prevent tea leakage during subsequent filtration. When the device needs to be cleaned, the external controller starts the self-cleaning program. First, the water inlet pipe 49 inputs rinsing water into the rotating pipe 45 through the connecting sleeve 48. The rinsing water flows into the spray pipe 46 through the rotating pipe 45 and is sprayed out through multiple nozzles 47 on the spray pipe 46. At the same time, the controller starts the second motor 51, whose output shaft drives the rotating pipe 45 to rotate through two pulleys 52 (belt connection). The rotating pipe 45 synchronously drives the spray pipe 46 and the nozzles 47 to rotate, so that the rinsing water is sprayed all around the inner wall of the filter box 1, the filter screen plate 2, the gauze 3 and other components, improving the cleaning effect. After cleaning is completed, the controller controls the second motor 51 to drive the rotating pipe 45 to rotate until the indicator arrow 53 on the outer wall of the rotating pipe 45 points to the indicator block 54 on the upper end face of the filter box 1. At this time, the spray pipe 46 is reset to a position that does not affect the lifting and lowering of the extrusion plate 41, and the self-cleaning process ends.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tea filtration device with pretreatment function, comprising a filter box (1), characterized in that, The filter box (1) has filter screen plates (2) slidably installed on both sides of the inner wall through sliding grooves. Gauze (3) is fixedly installed on the upper surface of the filter screen plate (2). A collection frame (4) is fixedly installed inside the filter box (1). A first toothed plate (8) is fixedly installed on the bottom wall of the filter screen plate (2). The outer wall of the filter box (1) has a sliding opening that cooperates with the filter screen plate (2) and the first toothed plate (8). A rotating rod (9) is rotatably installed through the outer wall of the filter box (1). The end of the rotating rod (9) is connected to the first toothed plate (8) through a first rotating mechanism. A rocker wheel (11) is fixedly installed on the outer wall of the rotating rod (9). A first rotating shaft (13) is fixedly installed on the outer wall of the filter box (1) through a first connecting frame (12). A first connecting sleeve (15) is rotatably installed on the outer wall of the first rotating shaft (13) through a torque mechanism. The outer wall of the first connecting sleeve (15) is fixedly connected to the first sealing plate (17) via the first connecting rod (16). The inner wall of the first sealing plate (17) is fixedly installed with the first sealing gasket (18). The upper end face of the filter box (1) is fixedly installed with the feeding hopper (19) communicating with the interior. The outer wall of the filter box (1) is rotatably installed with the screw (21) via the moving frame (20). The outer wall of the moving frame (20) is fixedly installed with the first motor (22) connected to the screw (21). The outer wall of the screw (21) is rotatably installed with two moving blocks (24). The inside of the moving frame (20) is fixedly installed with the limiting rod (23). The limiting rod (23) slides through the two moving blocks (24). One of the movable blocks (24) has a cleaning brush (26) fixedly connected to its upper end face via a connecting mechanism. The other movable block (24) has a second toothed plate (27) fixedly installed on its upper end face. The outer wall of the filter box (1) has a cleaning opening that cooperates with the cleaning brush (26). The outer wall of the filter box (1) has a second rotating shaft (29) rotatably installed via a second connecting frame (28). The outer wall of the second rotating shaft (29) is connected to the second toothed plate (27) via a second rotating mechanism.

2. The oolong tea filtration device with pretreatment function according to claim 1, characterized in that, The first rotating mechanism includes a first gear (10) fixedly installed at the end of the rotating rod (9), and the first gear (10) meshes with the first toothed plate (8).

3. The oolong tea filtration device with pretreatment function according to claim 2, characterized in that, The torque mechanism includes two torsion springs (14) installed on the outer wall of the first rotating shaft (13). The two ends of the two torsion springs (14) are elastically connected to the outer wall of the first rotating shaft (13) and the inner wall of the first connecting sleeve (15), respectively.

4. The oolong tea filtration device with pretreatment function according to claim 3, characterized in that, The connecting mechanism includes a connecting rod (25) fixedly installed on the upper surface of the movable block (24). The end of the connecting rod (25) is fixedly connected to the upper surface of the cleaning brush (26). The outer wall of the filter box (1) is provided with a movable opening that cooperates with the connecting rod (25).

5. The oolong tea filtration device with pretreatment function according to claim 4, characterized in that, The second rotating mechanism includes a second gear (30) fixedly mounted on the outer wall of the second rotating shaft (29), and the second gear (30) meshes with the second toothed plate (27).

6. The oolong tea filtration device with pretreatment function according to claim 5, characterized in that, The outer wall of the filter box (1) is slidably installed with a collection bucket (5) that cooperates with the collection frame (4) through a pull-out opening. A limiting plate (6) is fixedly installed inside the collection bucket (5), and a filter hopper (7) is slidably installed on the upper surface of the limiting plate (6).

7. The oolong tea filtration device with pretreatment function according to claim 6, characterized in that, A second connecting sleeve (31) is fixedly installed on the outer wall of the second rotating shaft (29). A second sealing plate (33) is fixedly connected to the outer wall of the second connecting sleeve (31) through a second connecting rod (32). A second sealing gasket (34) is fixedly installed on the inner wall of the second sealing plate (33). A guide frame (35) that cooperates with the cleaning opening is fixedly installed on the outer wall of the filter box (1). A sliding sleeve (36) is fixedly installed on the outer wall of the filter box (1). A slider (37) is slidably installed inside the sliding sleeve (36). A collection box (38) is fixedly installed at the end of the slider (37).

8. The oolong tea filtration device with pretreatment function according to claim 7, characterized in that, The filter box (1) has a first cylinder (40) fixedly mounted on its upper end face via a first mounting frame (39). The filter box (1) has a first telescopic opening that cooperates with the telescopic end of the first cylinder (40). The telescopic end of the first cylinder (40) is fixedly connected to a pressing plate (41). The filter box (1) has a push plate (44) slidably mounted inside via a mounting groove. The filter box (1) has a second cylinder (43) fixedly mounted on its outer wall via a second mounting frame (42). The filter box (1) has a second telescopic opening that cooperates with the second cylinder (43). The telescopic end of the second cylinder (43) is fixedly connected to the outer wall of the push plate (44).

9. The oolong tea filtration device with pretreatment function according to claim 8, characterized in that, A rotating pipe (45) is rotatably installed through the upper end face of the filter box (1). A spray pipe (46) is fixedly installed on the outer wall of the rotating pipe (45). Multiple nozzles (47) communicating with the interior are fixedly installed on the outer wall of the spray pipe (46). A connecting sleeve (48) is rotatably installed on the outer wall of the rotating pipe (45). An inlet pipe (49) is fixedly installed inside the connecting sleeve (48).

10. The oolong tea filtration device with pretreatment function according to claim 9, characterized in that, The filter box (1) is fixedly mounted with a second motor (51) via a support plate (50). The output shaft of the second motor (51) and the outer wall of the rotating tube (45) are both fixedly mounted with pulleys (52). The two pulleys (52) are connected by a belt for transmission. An indicator arrow (53) is fixedly mounted on the outer wall of the rotating tube (45). An indicator block (54) that cooperates with the indicator arrow (53) is fixedly mounted on the upper surface of the filter box (1).

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