Tea fermentation device based on multilayer net cage

Abstract

The invention discloses a tea fermentation device based on a multi-layer net cage type, and belongs to the technical field of tea production, through the arrangement of a rotating mechanism and a turning mechanism, net plates can rotate in a fermentation net cage under the cooperation of the rotating mechanism, the uniformity of contact between each net plate and tea in the net plate and air is improved, and the tea fermentation efficiency is improved. Meanwhile, in the rotating process, a second gear drives a rotating rod to rotate under the limitation of a positioning support and drives a rotating plate to rotate under the limitation of a mounting plate, and the rotating plate drives a mounting clamping block to rotate through a clamping groove, so that a tea placing layer can deflect with the center of the rotating plate as the axis; the tea leaves in the tea leaf placing layer are turned over along with deflection, so that the tea leaves in the tea leaf placing layer are turned over on the premise that the fermentation net cage is not opened, and temperature and humidity floating caused by opening of the fermentation net cage is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of tea production, and in particular to a tea fermentation device based on a multi-layer mesh box. Background Art

[0002] Fermented tea refers to the tea that has been fermented in the tea production process. After the tea buds and leaves are withered, rolled, fermented, dried and other preliminary processes to make raw tea, the tea that is refined is fermented tea. It can be divided into lightly fermented tea, semi-fermented tea, fully fermented tea, and post-fermented tea. Tea fermentation generally adopts closed fermentation method, which is to ferment in a relatively closed space under artificial control of temperature, humidity, air and number of bacteria. This method can speed up the fermentation rate, conversion speed and shorten the fermentation cycle. The cage-type fermentation device is widely used as a commonly used closed container. During the fermentation process of tea, the degree of oxidation is a key factor in determining the quality and taste of tea. Therefore, the tea leaves need to be turned regularly during the fermentation process to increase the contact area between the tea leaves and the air and provide more oxygen for microorganisms. For fully fermented teas such as black tea, turning also helps to evenly oxidize and avoid over-oxidation or under-oxidation of some tea leaves. Although the existing cage-type fermentation device can regulate the temperature and humidity in the fermentation chamber, the temperature and humidity inside the fermentation chamber will fluctuate every time the fermentation chamber is opened for turning, which requires an extremely high adjustment speed for the regulating equipment. Especially in the early stage of fermentation, the humidity of the tea leaves is high and the fermentation reaction is more intense. Therefore, the cycle of opening the fermentation chamber and turning the tea leaves is relatively short at this stage, about once an hour. If the adjustment speed of the regulating equipment is slow, it is easy to cause the humidity and temperature in the fermentation chamber to fail to meet the fermentation standards for a long time, affecting the fermentation process of the tea leaves. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the temperature and humidity inside the fermentation chamber fluctuate every time the fermentation chamber is opened for turning, and the adjustment speed of the control equipment is extremely high, especially in the early stage of fermentation, the humidity of the tea leaves is high and the fermentation reaction is more intense. Therefore, the cycle of opening the fermentation chamber and turning the tea leaves at this stage is relatively short, about once per hour. If the adjustment speed of the control equipment is slow, it is easy to cause the humidity and temperature in the fermentation chamber to fail to meet the fermentation standards for a long time, affecting the fermentation process of the tea leaves. A tea fermentation device based on a multi-layer mesh box is proposed.

[0004] In order to achieve the above purpose, the present invention adopts the following technology: a tea fermentation device based on a multi-layer mesh box: It comprises a fermentation net box and a net plate arranged in the fermentation net box for placing tea leaves, wherein the inner wall of the fermentation net box is provided with a rotating mechanism, the rotating mechanism comprises two rotating disks rotatably arranged in the fermentation net box and a positioning disk penetrating the middle of the rotating disk, a spoke shaft is installed on the rotating disk, an assembly plate is installed on the spoke shaft, and the bottom of the assembly plate is always kept level with the ground; The assembly plate is provided with a flipping mechanism, which includes a rotating plate rotatably arranged on the assembly plate and a guide plate installed on the positioning plate, a second gear is installed on the rotating plate and a plurality of arc-shaped racks meshing with the second gear are arranged at intervals on the guide plate; The screen plate is mounted on the rotating plate. After the screen plate rotates to the guide plate along with the rotating disk, the second gear contacts the arc-shaped rack and drives the screen plate to deflect with the center of the rotating plate as the axis, and the tea leaves in the screen plate are turned over along with the deflection. The mesh plate is provided with a smoothing mechanism for smoothing the tea leaves that are piled up after turning over. The smoothing mechanism comprises a leveling shovel that moves horizontally along the length direction of the mesh plate, and the bottom of the leveling shovel is in contact with the tea leaves.

[0005] As a further description of the above technology based on a multi-layer mesh box type tea fermentation device: The rotating mechanism also includes a mounting frame and a mounting bracket installed in the fermentation net box, the rotating disk is rotatably installed in the mounting frame, a toothed annular groove is provided on the surface of the rotating disk, and the positioning disk is fixedly installed in the fermentation net box through the mounting bracket; A rotating shaft is rotatably arranged on the inner wall of the fermentation net box, and a toothed transmission wheel and a first gear meshing with the toothed annular groove are sleeved on the rotating shaft; The fermentation net box is equipped with a rotating handle for driving the rotating disk to rotate, and another toothed transmission wheel is installed on the output end of the rotating handle. The two toothed transmission wheels are sleeved with toothed transmission belts. When the rotating handle rotates, the first gear cooperates with the toothed annular groove to drive the rotating disk to rotate.

[0006] As a further description of the above technology based on a multi-layer mesh box type tea fermentation device: The mesh plate comprises a tea placing layer installed on the rotating plate, a transpiration water collecting layer installed under the tea placing layer and installation blocks installed on both sides of the tea placing layer, and the tea placing layer is connected to the rotating plate through the installation blocks.

[0007] As a further description of the above technology based on a multi-layer mesh box type tea fermentation device: The flip mechanism also includes a mounting plate mounted on the assembly plate, a mounting hole matching the mounting plate is opened in the middle of the assembly plate, a rotating plate passes through and is rotatably arranged in the middle of the mounting plate, a positioning bracket is also installed on the mounting plate, a rotating rod passes through and is rotatably arranged in the middle of the positioning bracket, and both ends of the rotating rod are respectively connected to the rotating plate and the second gear; The rotating plate is provided with a card slot which is interlocked with the installation card block, and the assembly plate is provided with a guide track which guides the installation card block to be inserted into the card slot.

[0008] As a further description of the above technology based on a multi-layer mesh box type tea fermentation device: An annular cavity is provided on the surface of the rotating rod, a torsion spring is wound in the cavity, and the end of the torsion spring is connected to the inner wall of the positioning bracket.

[0009] As a further description of the above technology based on a multi-layer mesh box type tea fermentation device: The tea placement layer and the transpiration water collection layer are both provided with strip-shaped through holes in the middle, and the outer edges of the strip-shaped through holes are respectively provided with a first blocking plate and a second blocking plate of the same height as the inner walls of the tea placement layer and the transpiration water collection layer; The smoothing mechanism also includes a connecting rod penetrating the strip-shaped through holes in the middle of the tea placing layer and the transpiration water collecting layer, and a slide groove provided at the bottom of the transpiration water collecting layer, a connecting frame is connected to the bottom of the connecting rod, and a sliding block is provided on the connecting frame and is slidably embedded in the slide groove; The leveling shovel is rotatably mounted on the connecting rod, a support plate is horizontally arranged below the leveling shovel, the support plate and the leveling shovel are connected by an adjusting mechanism, and the distance between the leveling shovel and the bottom of the inner wall of the tea placing layer is adjusted by the adjusting mechanism.

[0010] As a further description of the above technology based on a multi-layer mesh box type tea fermentation device: A first guide rod is arranged on the inner wall of the slide groove, a round hole for the first guide rod to pass through is opened in the middle of the slider, a compression spring is wound on the surface of the first guide rod, and two ends of the compression spring are respectively connected to the slider and the inner wall of the slide groove.

[0011] As a further description of the above technology based on a multi-layer mesh box type tea fermentation device: The position of the leveling shovel is adjusted by a guiding mechanism, which includes a first guiding plate, a second guiding plate, a third guiding plate arranged in the fermentation net box, and a second guiding rod installed on the connecting frame, the edges of the first guiding plate, the second guiding plate and the third guiding plate are arranged in an arc shape that fits the second guiding rod, and a spacing is reserved between two adjacent arc edges to form a channel; When the mesh plate rotates to the first guide plate, the second guide rod enters the channel and moves along the arc edge, and the arc edge guides the second guide rod to drive the connecting frame to move along the length direction of the mesh plate.

[0012] As a further description of the above technology based on a multi-layer mesh box type tea fermentation device: The first guide plate, the second guide plate and the third guide plate are detachably mounted on the bottom of the inner wall of the fermentation net box through a support.

[0013] As a further description of the above technology based on a multi-layer mesh box type tea fermentation device: The adjustment mechanism includes a mounting groove provided at the bottom of the leveling shovel and a toothed track installed on the support plate, a moving block is slidably embedded in the mounting groove, and a support rod is rotatably connected to the bottom of the moving block; A base is slidably embedded on the toothed track, the base is vertically connected to the support rod, a hinge is arranged on the base, and a hook which meshes with the toothed track is rotatably arranged on the hinge.

[0014] In summary, due to the adoption of the above-mentioned technology, a tea fermentation device based on a multi-layer mesh box has the following beneficial effects: 1. Through the provided rotating mechanism and flipping mechanism, the mesh plate can be rotated in the fermentation net box with the cooperation of the rotating mechanism, and the mesh plate and the tea leaves inside it can be rotated in the fermentation net box, which improves the uniformity of contact between each mesh plate and the tea leaves inside it and the air, and facilitates the adjustment of the position of the mesh plate. At the same time, during the rotation process, the second gear enters the guide plate and contacts the arc-shaped rack. Under the push of the arc-shaped rack, the second gear drives the rotating rod to rotate under the restriction of the positioning bracket, and drives the rotating plate to rotate under the restriction of the mounting plate. The rotating plate drives the mounting block to rotate through the card slot, so that the tea placing layer can deflect with the center of the rotating plate as the axis, and the tea leaves in the tea placing layer are flipped with the deflection, so that the tea leaves in the tea placing layer are flipped without opening the fermentation net box, thereby reducing the temperature and humidity fluctuations caused by opening the fermentation net box; 2. Through the smoothing mechanism, by pushing the connecting frame, the connecting frame drives the leveling shovel to move horizontally along the length direction of the slide groove under the limitation of the slide groove, and the inner wall of the slide groove is provided with a first guide rod, and the middle part of the slider is provided with a round hole for the first guide rod to pass through, and the surface of the first guide rod is wound with a compression spring, and the two ends of the compression spring are respectively connected to the slider and the inner wall of the slide groove, so that the slider can squeeze the compression spring and cause it to produce elastic deformation during the movement of the first guide rod surface. At the same time, the connecting frame drives the support plate and the leveling shovel to move in the tea placing layer through two connecting rods, flattens the raised part of the tea pile or fills the concave position, thereby achieving the purpose of leveling the turned tea leaves in the tea placing layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a tea fermentation device based on a multi-layer mesh box is shown; Figure 2 A schematic diagram of a three-dimensional cross-sectional structure of a tea fermentation device based on a multi-layer mesh box is shown; Figure 3 A first structural schematic diagram of the interior of a fermentation cage is shown; Figure 4A second structural schematic diagram of the interior of the fermentation cage is shown; Figure 5 A schematic diagram of the three-dimensional structure of a screen plate installed on a flipping mechanism and a leveling mechanism installed on the screen plate is shown; Figure 6 Shows Figure 5 A schematic diagram of the enlarged structure at A in the middle; Figure 7 A schematic diagram of a three-dimensional cross-sectional structure of a flipping mechanism is shown; Figure 8 A schematic diagram of the three-dimensional structure when the flip mechanism is disassembled from the assembly plate is shown; Fig. 9 A schematic diagram of the front cross-sectional mechanism of the positioning plate and the guide plate is shown; Fig.10 Shows Fig. 9 A schematic diagram of the enlarged structure at B in the middle; Fig.11 It shows a three-dimensional structural schematic diagram of the screen plate when the leveling mechanism moves; Fig.12 A schematic diagram of the three-dimensional cross-sectional structure of the screen plate and the leveling mechanism is shown; Fig.13 A schematic diagram of the three-dimensional structure of the leveling mechanism is shown; Fig.14 A schematic diagram of a three-dimensional cross-sectional structure of the adjustment mechanism is shown; Fig.15 Shows Fig.14 Schematic diagram of the enlarged structure at C in the middle; Fig.16 A schematic diagram of the front cross-sectional structure of the transpiration water collection layer and the chute is shown; Fig.17 A schematic diagram showing a partial three-dimensional cross-sectional structure of the guide mechanism Fig.18 A three-dimensional structural schematic diagram of the rotating mechanism is shown.

[0016] Legend: 11. Fermentation net box; 12. Net plate; 121. Tea placing layer; 122. Evaporated water collecting layer; 123. Mounting block; 124. First blocking plate; 125. Second blocking plate; 20. Rotating mechanism; 21. Mounting frame; 22. Rotating plate; 221. Toothed annular groove; 222. Rotating shaft; 223. First gear; 224. Toothed transmission wheel; 225. Toothed transmission belt; 23. Positioning plate; 231. Mounting bracket; 24. Rotating handle; 25. Spoke shaft; 26. Assembly plate; 261. Guide track; 30. Flipping mechanism; 31. Mounting plate; 32. Rotating plate; 33. Slot; 34. Positioning bracket; 35. Rotating rod; 351. Torsion spring; 36. Second gear; 37. Guide plate; 38. Arc-shaped rack; 40. Smoothing mechanism; 41. Connecting frame; 42. Sliding block; 43. Connecting rod; 44. Support plate; 45. Smoothing shovel; 46. Sliding groove; 461. First guide rod; 462. Compression spring; 50. Guide mechanism; 51. First guide plate; 52. Second guide plate; 53. Third guide plate; 54. Support; 55. Second guide rod; 60. Adjustment mechanism; 61. Mounting slot; 62. Moving block; 63. Support rod; 64. Base; 641. Hinge; 642. Hook; 65. Toothed track. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technology in the embodiments of the present invention, a tea fermentation device based on a multi-layer mesh box. Obviously, the described embodiment is only a part of the embodiments of the present invention, not 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.

[0018] In order to solve the problem that the temperature and humidity inside the fermentation chamber fluctuate each time the fermentation chamber is opened for turning, the adjustment speed of the control device is extremely high, especially in the early stage of fermentation, when the humidity of the tea leaves is high and the fermentation reaction is more intense. Therefore, the cycle of opening the fermentation chamber and turning the tea leaves at this stage is relatively short, about once per hour. If the adjustment speed of the control device is slow, it is easy to cause the humidity and temperature in the fermentation chamber to fail to meet the fermentation standards for a long time, affecting the fermentation process of the tea leaves. The present invention proposes a tea fermentation device based on a multi-layer mesh box, such as Figure 1 - Fig.18 As shown: The fermentation net box 11 and the net plate 12 arranged in the fermentation net box 11 for placing tea leaves are provided. Fig.11 As shown, the screen plate 12 includes a tea placing layer 121 installed on the rotating plate 32, a transpiration water collecting layer 122 installed under the tea placing layer 121, and mounting blocks 123 installed on both sides of the tea placing layer 121; The inner wall of the fermentation net box 11 is provided with a rotating mechanism 20, which includes two rotating disks 22 rotatably arranged in the fermentation net box 11 and a positioning disk 23 penetrating the middle of the rotating disk 22. A plurality of spoke shafts 25 are installed on the rotating disk 22, and an assembly plate 26 is installed on the spoke shaft 25. The bottom of the assembly plate 26 is always kept level with the ground. like Fig.18As shown, the rotating mechanism 20 also includes a mounting frame 21 and a mounting bracket 231 mounted in the fermentation net box 11, the rotating disk 22 is rotatably mounted in the mounting frame 21, a toothed annular groove 221 is provided on the surface of the rotating disk 22, and the positioning disk 23 is fixedly mounted in the fermentation net box 11 through the mounting bracket 231; A rotating shaft 222 is rotatably provided on the inner wall of the fermentation net box 11, and a toothed transmission wheel 224 and a first gear 223 meshing with the toothed annular groove 221 are sleeved on the rotating shaft 222; A rotating handle 24 for driving the rotating disk 22 to rotate is installed on the fermentation net box 11, and another toothed transmission wheel 224 is installed on the output end of the rotating handle 24, and a toothed transmission belt 225 is sleeved on the two toothed transmission wheels 224; When it is necessary to rotate the rotating disk 22, by holding and rotating the handle 24, the toothed transmission wheel 224 installed on the handle 24 drives the toothed transmission wheel 224 installed on the rotating shaft 222 to rotate through the toothed transmission belt 225. The toothed transmission wheel 224 drives the first gear 223 to rotate through the rotating shaft 222. When the first gear 223 rotates, it can cooperate with the toothed annular groove 221 to push the rotating disk 22 to rotate under the restriction of the mounting frame 21. The mesh plate 12 and the tea leaves therein can rotate in the fermentation net box 11, which can improve the uniformity of contact between each mesh plate 12 and the tea leaves therein and the air, and facilitate the adjustment of the position of the mesh plate 12.

[0019] A flip mechanism 30 is mounted on the assembly plate 26. Figure 6-Figure 10 As shown, the flipping mechanism 30 includes a rotating plate 32 rotatably arranged on the assembly plate 26 and a guide plate 37 installed on the positioning plate 23, a second gear 36 is installed on the rotating plate 32, and a plurality of arc-shaped racks 38 meshing with the second gear 36 are arranged at intervals on the guide plate 37, and an arc surface is arranged on the guide plate 37 to match the moving track of the second gear 36 when the mesh plate 12 rotates, so that the second gear 36 can contact with the arc-shaped rack 38 arranged on the guide plate 37 and rotate after entering the guide plate 37; The flip mechanism 30 also includes a mounting plate 31 mounted on the assembly plate 26. A mounting hole matching the mounting plate 31 is opened in the middle of the assembly plate 26. A rotating plate 32 passes through and is rotatably arranged in the middle of the mounting plate 31. A positioning bracket 34 is also mounted on the mounting plate 31. A rotating rod 35 passes through and is rotatably arranged in the middle of the positioning bracket 34. Both ends of the rotating rod 35 are respectively connected to the rotating plate 32 and the second gear 36. The tea placing layer 121 on the mesh plate 12 is connected to the rotating plate 32 through the mounting block 123. The rotating plate 32 is provided with a slot 33 which is mutually engaged with the mounting block 123. The assembly plate 26 is provided with a guide track 261 which guides the mounting block 123 to be inserted into the slot 33. When the mesh plate 12 needs to be installed, the mesh plate 12 with tea leaves placed thereon is placed through the cavity door of the fermentation mesh box 11, and the installation block 123 is inserted into the guide track 261. Under the guidance of the guide track 261, the installation block 123 enters the card slot 33. The position of the installation block 123 can be restricted by a latch hole (not shown in the figure) so that it cannot be removed from the card slot 33. The mesh plate 12 is installed. When the tea leaves on the mesh plate 12 need to be turned over, the rotating disk 22 is rotated by rotating the rotating handle 24, and the rotating disk 22 drives the assembly plate 26 to rotate through the spoke shaft 25, and the slot 33 set on the assembly plate 26 drives the mesh plate 12 to rotate. After the mesh plate 12 rotates to the guide plate 37 with the rotating disk 22, the second gear 36 enters the guide plate 37 and contacts the arc-shaped rack 38. Under the push of the arc-shaped rack 38, the second gear 36 drives the rotating rod 35 to rotate under the restriction of the positioning bracket 34, and drives the rotating plate 32 to rotate under the restriction of the mounting plate 31. The rotating plate 32 drives the mounting block 123 to rotate through the slot 33, so that the tea placing layer 121 can deflect with the center of the rotating plate 32 as the axis, and the tea leaves in the tea placing layer 121 are turned over with the deflection, so that the tea leaves in the tea placing layer 121 are turned over without opening the fermentation net box 11, thereby reducing the temperature and humidity fluctuation caused by opening the fermentation net box 11. At the same time, in order to prevent the second gear 36 from coming into contact with the next arc-shaped rack 38 without being reset in time after coming into contact with one arc-shaped rack 38, causing excessive deflection of the tea-leaf placing layer 121, such as Figure 7 As shown, an annular cavity is provided on the surface of the rotating rod 35, and a torsion spring 351 is wound in the cavity. The end of the torsion spring 351 is connected to the inner wall of the positioning bracket 34. Through this design, when the rotating rod 35 rotates under the restriction of the positioning bracket 34, it can pull the torsion spring 351 to produce elastic deformation. By utilizing the elastic deformation recovery of the torsion spring 351, the torsion spring 351 can pull the rotating rod 35 and the second gear 36 to quickly reset, thereby avoiding the situation where the second gear 36 is not reset in time.

[0020] The tea placement layer 121 and the transpiration water collection layer 122 are both provided with strip-shaped through holes in the middle. Fig.12 As shown, the first blocking plate 124 and the second blocking plate 125 are respectively arranged at the outer edge of the strip through hole, which are the same height as the inner wall of the tea placement layer 121 and the transpiration water collection layer 122. Through this design, the tea leaves in the tea placement layer 121 and the water collected in the transpiration water collection layer 122 can be blocked by the first blocking plate 124 and the second blocking plate 125, so they will not leak into the fermentation net box 11 through the strip through hole; The tea leaves in the tea placing layer 121 cannot be evenly spread out after turning over. The air circulation is insufficient in the too thick area, which may easily lead to insufficient fermentation of the tea leaves, while the too thin area may lead to excessive oxidation and fermentation to produce sour taste. Therefore, in order to avoid the above problems, a smoothing mechanism 40 is installed on the mesh plate 12 to smooth the tea leaves that are piled up after turning over. The smoothing mechanism 40 includes a leveling shovel 45 that moves horizontally along the length direction of the mesh plate 12, and the bottom of the leveling shovel 45 is in contact with the tea leaves. The smoothing mechanism 40 further includes a connecting rod 43 penetrating through the strip-shaped through holes in the middle of the tea placing layer 121 and the transpiration water collecting layer 122, and a slide groove 46 provided at the bottom of the transpiration water collecting layer 122. The bottom of the connecting rod 43 is connected to a connecting frame 41, and a slider 42 is provided on the connecting frame 41 and is slidably embedded in the slide groove 46. The leveling shovel 45 is rotatably mounted on the connecting rod 43, a support plate 44 is horizontally arranged below the leveling shovel 45, the support plate 44 and the leveling shovel 45 are connected by an adjustment mechanism 60, and the distance between the leveling shovel 45 and the bottom of the inner wall of the tea placing layer 121 is adjusted by the adjustment mechanism 60; By pushing the connecting frame 41, the connecting frame 41 drives the leveling shovel 45 to move horizontally along the length direction thereof under the restriction of the slide groove 46. A first guide rod 461 is provided on the inner wall of the slide groove 46. A round hole for the first guide rod 461 to pass through is provided in the middle of the slider 42. A compression spring 462 is wound around the surface of the first guide rod 461. The two ends of the compression spring 462 are respectively connected to the slider 42 and the inner wall of the slide groove 46, so that the slider 42 can squeeze the compression spring 462 and cause it to produce elastic deformation during the movement of the surface of the first guide rod 461. At the same time, the connecting frame 41 drives the support plate 44 and the leveling shovel 45 to move in the tea placing layer 121 through the two connecting rods 43, so as to flatten the raised part of the tea pile or fill the concave position, thereby achieving the purpose of leveling the tea leaves that have been turned over in the tea placing layer 121. Further, in order to control the moving distance and moving speed of the support plate 44 and the leveling shovel 45, the position of the leveling shovel 45 is adjusted by a guiding mechanism 50, and the guiding mechanism 50 includes a first guiding plate 51, a second guiding plate 52, a third guiding plate 53 arranged in the fermentation net box 11, and a second guiding rod 55 installed on the connecting frame 41, and the edges of the first guiding plate 51, the second guiding plate 52, and the third guiding plate 53 are arranged to be arc-shaped to fit the second guiding rod 55, and a spacing is reserved between two adjacent arc-shaped edges to form a channel; When the rotating disk 22 drives the screen 12 to move to the first guide plate 51 by rotating, the screen 12 drives the second guide rod 55 to move and enter the channel through the connecting frame 41. The second guide rod 55 moves in the channel in contact with the arc edge. Under the guidance of the arc edge, the second guide rod 55 can move laterally in the channel, thereby driving the connecting frame 41 to move along the length direction of the screen 12. The first guide plate 51, the second guide plate 52 and the third guide plate 53 are detachably mounted on the bottom of the inner wall of the fermentation cage 11 through the support 54. By replacing the first guide plate 51, the second guide plate 52 and the third guide plate 53 with different arc edges, the curvature of the channel formed by the first guide plate 51, the second guide plate 52 and the third guide plate 53 is changed, and the moving speed and movable area of ​​the second guide rod 55 in the channel are also changed accordingly, thereby achieving the purpose of adjusting the moving distance and moving rate of the support plate 44 and the leveling shovel 45.

[0021] At the same time, since different tea leaves have different requirements for oxygen content during fermentation, the thickness of the tea piles of different tea leaves during fermentation is also different. Therefore, an adjustment mechanism 60 is provided between the support plate 44 and the leveling shovel 45 to achieve the purpose of adjusting the distance between the leveling shovel 45 and the bottom of the tea placing layer 121. The adjustment mechanism 60 includes a mounting groove 61 provided at the bottom of the leveling shovel 45 and a toothed track 65 installed on the support plate 44. A moving block 62 is slidably embedded in the mounting groove 61, and a support rod 63 is rotatably connected to the bottom of the moving block 62. A base 64 is slidably embedded on the toothed track 65, and the base 64 is vertically connected to the support rod 63. A hinge 641 is provided on the base 64, and a hook 642 that meshes with the toothed track 65 is rotatably provided on the hinge 641; By pushing the base 64, the base 64 slides under the restriction of the toothed track 65, and the base 64 drives the moving block 62 to slide inside the installation groove 61 through the toothed track 65. When the angle of the leveling shovel 45 is adjusted, the angle between the moving block 62 and the support rod 63 is also adjusted accordingly, so that the toothed track 65 can always support the leveling shovel 45. The larger the angle between the leveling shovel 45 and the support plate 44, the smaller the distance between the leveling shovel 45 and the bottom of the tea placing layer 121. While the base 64 slides, the hinge 641 drives the hook 642 to contact the teeth of the toothed track 65. The teeth on the toothed track 65 include a vertical surface and an inclined surface. The end of the hook 642 is also provided with a vertical surface and an inclined surface that cooperate with the teeth of the toothed track 65. Therefore, under the push of the toothed track 65, when the inclined surface of the hook 642 fits with the inclined surface of the teeth of the toothed track 65, the hook 642 can rotate and lift, and when the vertical surface of the hook 642 fits with the vertical surface of the teeth of the toothed track 65, the hook 642 cannot rotate, so that the position of the base 64 is locked by the teeth of the toothed track 65 and the hook 642, thereby achieving the purpose of locking the angle of the adjusted leveling shovel 45.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention, according to the technology of the present invention, a multi-layer mesh box-type tea fermentation device and its inventive concept are equivalently replaced or changed, which should be covered by the protection scope of the present invention.

Claims

1. A tea fermentation device based on a multi-layer mesh box, comprising a fermentation mesh box (11) and a mesh plate (12) arranged in the fermentation mesh box (11) for placing tea leaves, characterized in that: The inner wall of the fermentation net box (11) is provided with a rotating mechanism (20), the rotating mechanism (20) comprising two rotating disks (22) rotatably arranged in the fermentation net box (11) and a positioning disk (23) penetrating the middle of the rotating disks (22), a spoke shaft (25) being mounted on the rotating disks (22), an assembly plate (26) being mounted on the spoke shaft (25), and the bottom of the assembly plate (26) always being kept level with the ground; A flipping mechanism (30) is mounted on the assembly plate (26), the flipping mechanism (30) comprising a rotating plate (32) rotatably mounted on the assembly plate (26) and a guide plate (37) mounted on the positioning plate (23), a second gear (36) being mounted on the rotating plate (32) and a plurality of arc-shaped racks (38) meshing with the second gear (36) being arranged at intervals on the guide plate (37); The mesh plate (12) is mounted on the rotating plate (32). After the mesh plate (12) rotates with the rotating disk (22) to the guide plate (37), the second gear (36) contacts the arc-shaped rack (38) and drives the mesh plate (12) to deflect with the center of the rotating plate (32) as the axis, and the tea leaves in the mesh plate (12) are turned over with the deflection; The mesh plate (12) is provided with a smoothing mechanism (40) for smoothing the tea leaves that are piled up after being turned over. The smoothing mechanism (40) comprises a leveling shovel (45) that moves horizontally along the length direction of the mesh plate (12), and the bottom of the leveling shovel (45) is in contact with the tea leaves.

2. A tea fermentation device based on a multi-layer mesh box according to claim 1, characterized in that: The rotating mechanism (20) further comprises a mounting frame (21) and a mounting bracket (231) mounted in the fermentation net box (11); the rotating disk (22) is rotatably mounted in the mounting frame (21); a toothed annular groove (221) is provided on the surface of the rotating disk (22); and the positioning disk (23) is fixedly mounted in the fermentation net box (11) via the mounting bracket (231); A rotating shaft (222) is rotatably disposed on the inner wall of the fermentation net box (11), and a toothed transmission wheel (224) and a first gear (223) meshing with the toothed annular groove (221) are sleeved on the rotating shaft (222); The fermentation net box (11) is provided with a rotating handle (24) for driving the rotating disk (22) to rotate. Another toothed transmission wheel (224) is provided on the output end of the rotating handle (24). A toothed transmission belt (225) is sleeved on the two toothed transmission wheels (224). When the rotating handle (24) rotates, the first gear (223) cooperates with the toothed annular groove (221) to drive the rotating disk (22) to rotate.

3. The tea fermentation device based on a multi-layer mesh box according to claim 1, characterized in that: The mesh plate (12) comprises a tea placement layer (121) mounted on the rotating plate (32), a transpiration water collection layer (122) mounted under the tea placement layer (121), and mounting blocks (123) mounted on both sides of the tea placement layer (121); the tea placement layer (121) is connected to the rotating plate (32) via the mounting blocks (123).

4. The tea fermentation device based on a multi-layer mesh box according to claim 1, characterized in that: The flip mechanism (30) further comprises a mounting plate (31) mounted on the assembly plate (26); a mounting hole matching the mounting plate (31) is provided in the middle of the assembly plate (26); a rotating plate (32) passes through and is rotatably arranged in the middle of the mounting plate (31); a positioning bracket (34) is further mounted on the mounting plate (31); a rotating rod (35) passes through and is rotatably arranged in the middle of the positioning bracket (34); and two ends of the rotating rod (35) are respectively connected to the rotating plate (32) and the second gear (36); The rotating plate (32) is provided with a slot (33) interlocked with the mounting block (123), and the assembly plate (26) is provided with a guide track (261) for guiding the mounting block (123) to be inserted into the slot (33).

5. The tea fermentation device based on a multi-layer mesh box according to claim 4, characterized in that: The rotating rod (35) has an annular cavity on its surface, in which a torsion spring (351) is wound, and the end of the torsion spring (351) is connected to the inner wall of the positioning bracket (34).

6. The tea fermentation device based on a multi-layer mesh box according to claim 3, characterized in that: The tea placement layer (121) and the transpiration water collection layer (122) are both provided with strip-shaped through holes in the middle, and a first blocking plate (124) and a second blocking plate (125) having the same height as the inner walls of the tea placement layer (121) and the transpiration water collection layer (122) are respectively provided at the outer edges of the strip-shaped through holes; The smoothing mechanism (40) further comprises a connecting rod (43) penetrating through the strip-shaped through holes in the middle of the tea placement layer (121) and the transpiration water collection layer (122), and a slide groove (46) provided at the bottom of the transpiration water collection layer (122); the bottom of the connecting rod (43) is connected to a connecting frame (41), and the connecting frame (41) is provided with a sliding block (42) slidably embedded in the slide groove (46); The leveling shovel (45) is rotatably mounted on the connecting rod (43), a support plate (44) is horizontally arranged below the leveling shovel (45), the support plate (44) and the leveling shovel (45) are connected via an adjustment mechanism (60), and the distance between the leveling shovel (45) and the bottom of the inner wall of the tea placing layer (121) is adjusted via the adjustment mechanism (60).

7. The tea fermentation device based on a multi-layer mesh box according to claim 6, characterized in that: A first guide rod (461) is arranged on the inner wall of the slide groove (46), a circular hole for the first guide rod (461) to pass through is opened in the middle of the slider (42), a compression spring (462) is wound around the surface of the first guide rod (461), and two ends of the compression spring (462) are respectively connected to the slider (42) and the inner wall of the slide groove (46).

8. The tea fermentation device based on a multi-layer mesh box according to claim 6, characterized in that: The position of the leveling shovel (45) is adjusted by a guiding mechanism (50), the guiding mechanism (50) comprising a first guiding plate (51), a second guiding plate (52), a third guiding plate (53) arranged in the fermentation net box (11), and a second guiding rod (55) mounted on the connecting frame (41), the edges of the first guiding plate (51), the second guiding plate (52), and the third guiding plate (53) being arranged in an arc shape that fits the second guiding rod (55), and a space is reserved between two adjacent arc edges to form a channel; When the mesh plate (12) rotates to the first guide plate (51), the second guide rod (55) enters the channel and moves in close contact with the arc edge, and the arc edge guides the second guide rod (55) to drive the connecting frame (41) to move along the length direction of the mesh plate (12).

9. The tea fermentation device based on a multi-layer mesh box according to claim 8, characterized in that: The first guide plate (51), the second guide plate (52) and the third guide plate (53) are detachably mounted on the bottom of the inner wall of the fermentation cage (11) via a support (54).

10. The tea fermentation device based on a multi-layer mesh box according to claim 6, characterized in that: The adjustment mechanism (60) comprises a mounting groove (61) provided at the bottom of the leveling shovel (45) and a toothed track (65) mounted on the support plate (44); a moving block (62) is slidably embedded in the mounting groove (61); and a support rod (63) is rotatably connected to the bottom of the moving block (62); A base (64) is slidably embedded on the toothed track (65), the base (64) is vertically connected to the support rod (63), a hinge (641) is provided on the base (64), and a hook (642) is rotatably provided on the hinge (641) and meshes with the toothed track (65).

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