CN220119737U - Drum-type tea dryer - Google Patents
Drum-type tea dryer Download PDFInfo
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- CN220119737U CN220119737U CN202321557301.5U CN202321557301U CN220119737U CN 220119737 U CN220119737 U CN 220119737U CN 202321557301 U CN202321557301 U CN 202321557301U CN 220119737 U CN220119737 U CN 220119737U
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- stirring
- drying
- hollow shaft
- roller
- motor
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- 241001122767 Theaceae Species 0.000 title abstract description 50
- 238000003756 stirring Methods 0.000 claims abstract description 97
- 238000001035 drying Methods 0.000 claims abstract description 82
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000009423 ventilation Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 24
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 6
- 241001330002 Bambuseae Species 0.000 claims description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 6
- 239000011425 bamboo Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 4
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- 244000269722 Thea sinensis Species 0.000 claims 6
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- 235000013616 tea Nutrition 0.000 description 49
- 238000007599 discharging Methods 0.000 description 7
- 210000004209 hair Anatomy 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 5
- 235000009024 Ceanothus sanguineus Nutrition 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 210000001672 ovary Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a roller-type tea dryer which comprises a drying rack, a stirring mechanism and a drying mechanism; and (3) drying a frame: the middle part of the upper end of the stirring hollow shaft is rotationally connected with the stirring hollow shaft through a bearing; stirring mechanism: the stirring hollow shaft is rotatably connected to the middle part of the stirring hollow shaft through a sealing bearing, and the outer surface of the stirring hollow shaft positioned in the stirring mechanism is provided with uniform and respective ventilation holes; and a drying mechanism: the drying mechanism is positioned on the right side of the drying frame and is communicated with the right end of the stirring hollow shaft through a rotary joint; wherein: the upper end of the left side of the drying rack is provided with a control switch group, and the input end of the control switch group is electrically connected with an external power supply; wherein: still include a motor, this drum-type tealeaves desiccator, through the opposite motion of cylinder and stirring helical blade, make the stirring of tealeaves more abundant, guarantee the continuous change of tealeaves stoving face at stoving in-process, guarantee tealeaves stoving's thoroughness and high efficiency.
Description
Technical Field
The utility model relates to the technical field of tea dryers, in particular to a roller type tea dryer.
Background
Tea trees belong to shrubs or small trees, and branches and leaves of the tea trees are hairless. The leaves are oblong or elliptic, the tips are blunt or sharp, the base is wedge-shaped, the upper surface is smooth, the lower surface is free of hair or soft hair is generated at first, and the edges are provided with saw teeth. The petioles are hairless. Flowers are white, stems are occasionally slightly long, sepals are wide and oval to round, no hair exists, and the flowers are stored. Petals are wide and oval, the basal parts are slightly connected, the back surface is hairless, and sometimes short and soft hairs are slightly arranged. The ovary grows white hair closely and the flower column has no hair. Tea beverage made of tea is one of three beverages in the world.
The existing tea processing technology is mature, after tea is picked, the tea can be changed into a state suitable for drinking through the procedures of fixation, rolling, fermentation and the like, wherein the tea is dried in a very critical step, the quality and the taste of the inside of the tea can be kept only after the tea is dried, and the main-stream tea dryer in the market at present is a drum dryer which utilizes hot air to evaporate water in the tea, so that the drying purpose is achieved.
However, the drum-type tea dryer which is popular in the market at present still has difficulty in achieving uniformity when drying tea, so that the final tea drying degree is different, the tea quality is affected, in addition, after drying is finished, the tea is manually put into a collecting box, the loading and unloading are inconvenient, the labor cost is increased, and the working efficiency is reduced.
Therefore, we propose a drum-type uniform-drying tea dryer.
Disclosure of Invention
The utility model aims to overcome the existing defects, and provides the roller-type tea dryer which can fully dry tea, ensure the drying quality, lighten the working strength and improve the working efficiency, and can effectively solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a drum-type tea dryer comprises a drying frame, a stirring mechanism and a drying mechanism;
and (3) drying a frame: the middle part of the upper end of the stirring hollow shaft is rotationally connected with the stirring hollow shaft through a bearing;
stirring mechanism: the stirring hollow shaft is rotatably connected to the middle part of the stirring hollow shaft through a sealing bearing, and the outer surface of the stirring hollow shaft positioned in the stirring mechanism is provided with uniform and respective ventilation holes;
and a drying mechanism: the drying mechanism is positioned on the right side of the drying frame and is communicated with the right end of the stirring hollow shaft through a rotary joint;
wherein: the upper end of the left side of the drying rack is provided with a control switch group, and the input end of the control switch group is electrically connected with an external power supply;
wherein: still include first motor, the boss fixed connection of first motor and stoving frame left side upper end, the output of first motor and the left end fixed connection of stirring hollow shaft, the output of control switch group is connected to the input electricity of first motor, through the opposite motion of cylinder and stirring helical blade, makes the stirring of tealeaves more abundant, guarantees the constantly change of tealeaves stoving face at the stoving in-process, guarantees tealeaves stoving's thoroughness and high efficiency, avoids the condition of drying by fire or semi-drying to appear, has improved dry quality, and hot fluid gas can maximize evenly spread over inside the barrel, better solution original model drying system exist the problem, guaranteed that the quality of tealeaves does not receive wet damage, ejection of compact pan feeding sealing door structure opens and shuts conveniently.
Further, rabbling mechanism still includes stirring rib, stirring helical blade, cylinder and louvre, the cylinder passes through sealed bearing and rotates to be connected in the middle part of stirring hollow shaft, is equipped with even respectively bleeder vent on the surface that the stirring hollow shaft is located the cylinder inside, stirring rib evenly sets up in the inner wall of cylinder, and stirring hollow shaft surface fixedly connected with stirring helical blade that is located the cylinder inside, the louvre is evenly seted up in the left and right sides of cylinder, can guarantee the sufficiency and the high efficiency of tealeaves stoving.
Further, the ring gear has been seted up to the left and right sides of cylinder, the upper end of drying rack is equipped with four symmetry respectively risers, the middle part of riser all is connected with the linkage gear through the rotation axis rotation, the linkage gear all with vertical adjacent with the ring gear meshing be connected, the riser left surface fixedly connected with second motor of left side front end, the output shaft of second motor and the rotation axis fixed connection of left end front side, the input of second motor is through the electricity connection in the output of control switch group, realize the rotation of cylinder, make the stirring of tealeaves more abundant.
Further, the drying mechanism further comprises a drying pipe, an air heater and an air inlet filter screen, the air heater is located on the right side of the drying frame, an air outlet of the air heater is communicated with a rotary joint at the right end of the stirring hollow shaft through the drying pipe, the air inlet of the air heater is provided with the air inlet filter screen, and the input end of the air heater is electrically connected with the output end of the control switch group, so that hot-flow gas can rapidly transfer heat to and dry tea through the drying pipe, and the quality of the tea is guaranteed not to be damaged.
Further, still include feeding and discharging mechanism, feeding and discharging mechanism includes rotatory buckle, hinge, material mouth baffle, the material mouth baffle passes through the hinge and articulates on the material mouth lateral wall of cylinder surface, the surface of cylinder is equipped with the internal thread section of thick bamboo, the inside of internal thread section of thick bamboo and the double-screw bolt threaded connection of rotatory buckle, and rotatory buckle's shrouding is installed with the cooperation of material mouth baffle, can reduce the manual work of throwing in and collecting tealeaves, alleviates physical labor intensity, improves the operating efficiency.
Further, the left and right sides upper end of drying rack has the safety cover through bolted connection, and the ring gear is located inside the safety cover, protects the safety of protection staff in the machine operation, prevents to be pressed from both hands by the ring gear clamp.
Further, a discharging hole is formed in the middle of the drying frame, and material receiving is facilitated.
Compared with the prior art, the utility model has the beneficial effects that: this drum-type tealeaves desiccator has following benefit:
1. the first motor is regulated and controlled by the control switch group to drive the stirring hollow shaft to rotate, the stirring helical blade is driven to move by the rotation of the stirring hollow shaft, so that tea leaves are continuously stirred and impacted on the stirring rib inside the roller, uniform stirring of the tea leaves is realized, meanwhile, staff controls the second motor to rotate by the control switch group, finally, the roller is driven to rotate anticlockwise, the second motor output shaft drives the rotating shaft on the front side of the left end to rotate, and then the linkage gear on the front side of the left end is driven to rotate, the roller is driven to rotate in the middle of the stirring hollow shaft under the meshing transmission of the toothed ring on the left side, finally, the stirring helical blade inside the roller moves clockwise, the stirring helical blade of the tea leaves is driven to move in opposite directions through the roller and the stirring helical blade, continuous change of the tea leaf drying surface in the drying process is ensured, the sufficiency and high efficiency of tea leaf drying are ensured, the condition of overdrying or semi-drying is avoided, and the drying quality is improved.
2. During feeding, the rotary buckle is twisted to enable the stud of the rotary buckle to rotate with the internal thread barrel, so that the sealing plate of the rotary buckle is staggered with the material port baffle, the material port baffle is opened after the material port baffle is short of limiting, tea leaves to be dried are put into the roller, then the material port baffle is covered, the rotary buckle enables the sealing plate on the rotary buckle to be overlapped with the material port baffle for limiting, and during discharging, only the roller is required to be controlled to rotate the feeding and discharging structure to the lower end, so that space is saved, labor intensity is reduced, and operation efficiency is improved.
3. Adopt the air heater to produce hot-flow gas, get into inside the cylinder through the stoving pipe to be equipped with the louvre in the export, make hot-flow gas carry out quick heat transfer drying to tealeaves, and in time discharge moisture, hot-flow gas can maximize evenly spread over inside the barrel, better solution original model drying system exist the problem, guaranteed that the quality of tealeaves does not receive the wet damage.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of a drying mechanism according to the present utility model;
fig. 3 is a schematic view of a rear-view cross-section structure of the drying mechanism of the present utility model.
In the figure: the device comprises a protection cover 1, a first motor 2, a drying frame 3, a control switch group 4, a stirring mechanism 5, stirring ribs 51, stirring helical blades 52, a roller 53, a 54 heat dissipation hole, a second motor 6, a feeding and discharging mechanism 7, a rotary buckle 71, a hinge 72, a material port baffle 73, a stirring hollow shaft 8, a drying mechanism 9, a drying pipe 91, a hot air blower 92, an air inlet filter screen 93, a linkage gear 10 and a vertical plate 11.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the present embodiment provides a technical solution: a roller-type tea dryer comprises a drying frame 3, a stirring mechanism 5 and a drying mechanism 9;
drying rack 3: the middle part of the upper end of the drying rack is rotatably connected with a stirring hollow shaft 8 through a bearing, and the middle part of the drying rack 3 is provided with a discharge port which is convenient for receiving materials;
stirring mechanism 5: the stirring mechanism 5 further comprises a stirring rib 51, stirring helical blades 52, a roller 53 and a heat dissipation hole 54, wherein the stirring rib 51, the stirring helical blades 52, the roller 53 and the heat dissipation hole 54 are rotationally connected to the middle of the stirring hollow shaft 8 through the sealing bearing, uniformly distributed air holes are formed in the outer surface of the stirring hollow shaft 8 inside the roller 53, the stirring rib 51 is uniformly arranged on the inner wall of the roller 53, the stirring helical blades 52 are fixedly connected to the outer surface of the stirring hollow shaft 8 inside the roller 53, the heat dissipation hole 54 is uniformly arranged on the left side and the right side of the roller 53 to stir tea leaves, the stirring helical blades 52 are driven to move clockwise through rotation of the stirring hollow shaft 8, the tea leaves are continuously stirred inside the roller 53 and collide with the stirring rib 51, uniform stirring of the tea leaves is realized, continuous change of a tea leaf drying surface in a drying process is ensured, the hot air heats and dries the tea leaves through the air holes, the moisture-containing air is timely discharged through the air holes 54, the sufficiency and the high efficiency of the tea leaf drying are ensured, the toothed rings are arranged on the left side and the right side of the roller 53, four symmetrical and independent vertical plates 11 are arranged at the upper end of the drying rack 3, the middle parts of the vertical plates 11 are respectively connected with a linkage gear 10 through rotation shafts in a rotating way, the linkage gears 10 are respectively meshed with the toothed rings in a vertically adjacent way, the left side surface of the vertical plate 11 at the front end of the left side is fixedly connected with a second motor 6, the output shaft of the second motor 6 is fixedly connected with the rotation shaft at the front side of the left end, the input end of the second motor 6 is electrically connected with the output end of the control switch group 4, the anticlockwise rotation of the roller 53 is realized, meanwhile, the stirring helical blades 52 in the roller 53 move clockwise, the stirring of the tea leaves is enabled to be more sufficient through the opposite movement of the roller 53 and the stirring helical blades 52, the upper ends of the left side and the right side of the drying rack 3 are connected with a protective cover 1 through bolts, and a toothed ring is positioned inside the protective cover 1, so that the safety of workers is protected during the operation of the machine, and the teeth ring is prevented from being clamped by two hands;
drying mechanism 9: the drying mechanism 9 is positioned on the right side of the drying frame 3 and is communicated with the right end of the stirring hollow shaft 8 through a rotary joint, the drying mechanism further comprises a drying pipe 91, an air heater 92 and an air inlet filter screen 93, the air heater 92 is positioned on the right side of the drying frame 3, an air outlet of the air heater 92 is communicated with the rotary joint on the right end of the stirring hollow shaft 8 through the drying pipe 91, an air inlet filter screen 94 is arranged at an air inlet of the air heater 92, an input end of the air heater 92 is electrically connected with an output end of the control switch group 4, the air heater 92 is started, external air is supplied into the air heater 92 after being filtered by the air inlet filter screen 93, then the air is heated by the air heater 92, and hot air carries out rapid heat transfer drying on tea leaves through the drying pipe 91;
wherein: the upper end of the left side of the drying rack 3 is provided with a control switch group 4, the input end of the control switch group 4 is electrically connected with an external power supply, and the control switch group 4 regulates and controls the normal operation of each electric appliance;
wherein: the stirring device further comprises a first motor 2, wherein the first motor 2 is fixedly connected with a boss at the upper end of the left side of the drying frame 3, an output shaft of the first motor 2 is fixedly connected with the left end of the stirring hollow shaft 8, and an input end of the first motor 2 is electrically connected with an output end of the control switch group 4, so that the control switch group 4 can control the rotation of the stirring hollow shaft 8 by controlling the operation of the first motor 2.
Wherein: still include feed and discharge mechanism 7, feed and discharge mechanism 7 includes rotatory buckle 71, hinge 72, material mouth baffle 73 articulates on the material mouth lateral wall of cylinder 53 surface through hinge 72, the surface of cylinder 53 is equipped with the internal thread section of thick bamboo, the inside and the double-screw thread threaded connection of rotatory buckle 71 of internal thread section of thick bamboo, the shrouding of rotatory buckle 71 is installed with the cooperation of material mouth baffle 73, during the feeding, it is rotatory to drive cylinder 53 with feed and discharge structure 7 upper end to drive the cylinder through control switch group 4, twist rotatory buckle 71, rotatory buckle 71 drives the cardboard and rises and rotate, open material mouth baffle 73, can realize the feeding, the feed and discharge is in a position, only need control cylinder 53 rotate feed and discharge structure 7 to the lower extreme open can, save space, reduce the manual throwing and collect tealeaves work, alleviate physical labor intensity, improve the operating efficiency.
The working principle of the drum-type tea dryer provided by the utility model is as follows: during operation, a worker operates the second motor 6 through the control switch group 4, the output shaft of the second motor 6 drives the rotary shaft at the front side of the left end to rotate, and then drives the linkage gear 10 at the front side of the left end to rotate, under the meshing transmission of the toothed ring at the left side, the roller 53 is driven to rotate at the middle part of the stirring hollow shaft 8, the other three linkage gears 10 are meshed with the toothed ring to provide bottom guide support until the feeding and discharging structure 7 of the roller 53 is rotated to the upper end, the rotary buckle 71 is twisted, the stud of the rotary buckle 71 and the internal thread cylinder are rotated, so that the sealing plate of the rotary buckle 71 is misplaced with the material opening baffle 73, the material opening baffle 73 is opened after the material opening baffle 73 is lack of limit, tea leaves to be dried are put into the roller 53, then the material opening baffle 73 is covered, the rotary buckle 71 enables the sealing plate on the rotary buckle 71 to coincide with the material opening baffle 73 to limit, the staff controls the first motor 2 to operate through the control switch group 4, the output shaft rotates to drive the stirring hollow shaft 8 to rotate, and then drives the stirring helical blade 52 to rotate clockwise, so that tea leaves are continuously stirred in the roller 53 and impact the stirring rib 51, uniform stirring of the tea leaves is realized, meanwhile, the staff controls the second motor 6 to rotate through the control switch group 4, finally, the roller 53 is driven to rotate anticlockwise, the stirring helical blade 52 in the roller 53 moves clockwise, the stirring of the tea leaves is more sufficient through the opposite movement of the roller 53 and the stirring helical blade 52, the staff starts the hot air blower 92 through the control switch group 4, the external air is supplied to the air inlet filter screen 93 for filtering and then is injected into the hot air blower 92, then the hot air blower 92 heats the air, and the hot air carries out rapid heat transfer drying on the tea leaves through the drying tube 91, meanwhile, the tea leaves are continuously stirred in the drying process, the drying surface of the tea leaves is continuously changed, hot-flow gas heats and dries the tea leaves through the air holes, and moisture-containing gas is timely discharged through the heat dissipation holes 54, so that the sufficiency and the high efficiency of tea leaf drying are ensured.
It should be noted that, in the above embodiment, the first motor 2 and the second motor 6 may be a M9RZ90G4GGA/MY9G200B speed reduction motor, the air heater 92 may be an NH-FL-3380-120 air volume type air heater, and the control switch set 4 is provided with control buttons corresponding to the first motor 2, the second motor 6 and the air heater 92 one by one and used for controlling the switches thereof.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (7)
1. A drum-type tealeaves desiccator, its characterized in that: comprises a drying frame (3), a stirring mechanism (5) and a drying mechanism (9);
drying rack (3): the middle part of the upper end is rotatably connected with a stirring hollow shaft (8) through a bearing
Stirring mechanism (5): the stirring device is rotationally connected to the middle part of a stirring hollow shaft (8) through a sealing bearing, and uniformly and respectively provided with air holes on the outer surface of the stirring hollow shaft (8) positioned inside the stirring mechanism (5);
drying mechanism (9): the drying mechanism (9) is communicated with the right end of the stirring hollow shaft (8) through a rotary joint;
wherein: the upper end of the left side of the drying rack (3) is provided with a control switch group (4), and the input end of the control switch group (4) is electrically connected with an external power supply;
wherein: still include first motor (2), boss fixed connection of first motor (2) and stoving frame (3) left side upper end, the output shaft of first motor (2) is fixed connection with the left end of stirring hollow shaft (8), the output of control switch group (4) is connected to the input electricity of first motor (2).
2. A drum tea dryer as claimed in claim 1, wherein: the stirring mechanism (5) further comprises stirring ribs (51), stirring helical blades (52), a roller (53) and cooling holes (54), the roller (53) is rotationally connected to the middle of the stirring hollow shaft (8) through a sealing bearing, the stirring hollow shaft (8) is provided with uniform and separate ventilation holes on the outer surface of the inner portion of the roller (53), the stirring ribs (51) are uniformly arranged on the inner wall of the roller (53), the stirring helical blades (52) are fixedly connected to the outer surface of the stirring hollow shaft (8) in the roller (53), and the cooling holes (54) are uniformly formed in the left side and the right side of the roller (53).
3. A drum tea dryer as claimed in claim 2, wherein: toothed rings are arranged on the left side and the right side of the roller (53), four symmetrical and separate vertical plates (11) are arranged at the upper end of the drying rack (3), the middle parts of the vertical plates (11) are respectively connected with a linkage gear (10) through rotation of a rotating shaft, the linkage gears (10) are respectively connected with the vertical adjacent toothed rings in a meshed mode, a second motor (6) is fixedly connected to the left side face of the vertical plate (11) at the front end of the left side, an output shaft of the second motor (6) is fixedly connected with the rotating shaft at the front side of the left end, and the input end of the second motor (6) is electrically connected to the output end of the control switch group (4).
4. A drum tea dryer as claimed in claim 1, wherein: the drying mechanism further comprises a drying pipe (91), an air heater (92) and an air inlet filter screen (93), wherein the air heater (92) is located on the right side of the drying frame (3), an air outlet of the air heater (92) is communicated with a rotary joint at the right end of the stirring hollow shaft (8) through the drying pipe (91), an air inlet filter screen (94) is arranged at an air inlet of the air heater (92), and an input end of the air heater (92) is electrically connected with an output end of the control switch group (4).
5. A drum tea dryer as claimed in claim 2, wherein: still include feed and discharge mechanism (7), feed and discharge mechanism (7) are including rotatory buckle (71), hinge (72), material mouth baffle (73) are articulated on the material mouth lateral wall of cylinder (53) surface through hinge (72), the surface of cylinder (53) is equipped with the internal thread section of thick bamboo, the inside of internal thread section of thick bamboo and the double-screw thread threaded connection of rotatory buckle (71), the shrouding and the cooperation of material mouth baffle (73) of rotatory buckle (71) are installed.
6. A drum tea dryer as claimed in claim 3, wherein: the upper ends of the left side and the right side of the drying rack (3) are connected with a protective cover (1) through bolts, and the toothed ring is positioned inside the protective cover (1).
7. A drum tea dryer as claimed in claim 1, wherein: the middle part of the drying rack (3) is provided with a discharge hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321557301.5U CN220119737U (en) | 2023-06-19 | 2023-06-19 | Drum-type tea dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321557301.5U CN220119737U (en) | 2023-06-19 | 2023-06-19 | Drum-type tea dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220119737U true CN220119737U (en) | 2023-12-01 |
Family
ID=88895041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321557301.5U Active CN220119737U (en) | 2023-06-19 | 2023-06-19 | Drum-type tea dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220119737U (en) |
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2023
- 2023-06-19 CN CN202321557301.5U patent/CN220119737U/en active Active
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