CN222560498U - Dryer unit for medicinal and edible materials - Google Patents

Dryer unit for medicinal and edible materials Download PDF

Info

Publication number
CN222560498U
CN222560498U CN202323499642.4U CN202323499642U CN222560498U CN 222560498 U CN222560498 U CN 222560498U CN 202323499642 U CN202323499642 U CN 202323499642U CN 222560498 U CN222560498 U CN 222560498U
Authority
CN
China
Prior art keywords
drying
stirring
heat
protective shell
drying box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202323499642.4U
Other languages
Chinese (zh)
Inventor
孙小垒
王景刚
李东客
齐珈珲
张翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Feilong Health Shenyang Co ltd
Original Assignee
Feilong Health Shenyang Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Feilong Health Shenyang Co ltd filed Critical Feilong Health Shenyang Co ltd
Priority to CN202323499642.4U priority Critical patent/CN222560498U/en
Application granted granted Critical
Publication of CN222560498U publication Critical patent/CN222560498U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Drying Of Solid Materials (AREA)

Abstract

本实用新型提供一种可用于药食同源物料的干燥机组,涉及一种干燥设备技术领域。该实用新型包括支撑架和干燥箱体,干燥箱上设置有烘干结构,干燥箱体上设置有搅拌结构,搅拌结构包括第一搅拌结构和第二搅拌结构,烘干结构包括第一烘干结构、第二烘干结构、第三烘干结构和第四烘干结构。本实用新型采用两组搅拌结构和四组烘干结构相配合,使得设备能够在不断搅拌的过程中持续对设备内部的物料进行加热烘干,并且由于物料在不断的翻滚过程中,所以物料能够受热均匀,烘干效果好。

The utility model provides a drying unit that can be used for medicine and food materials, and relates to the technical field of drying equipment. The utility model includes a support frame and a drying box body, a drying structure is provided on the drying box, a stirring structure is provided on the drying box body, the stirring structure includes a first stirring structure and a second stirring structure, and the drying structure includes a first drying structure, a second drying structure, a third drying structure and a fourth drying structure. The utility model adopts two groups of stirring structures and four groups of drying structures to cooperate, so that the equipment can continuously heat and dry the materials inside the equipment during the continuous stirring process, and because the materials are in the continuous tumbling process, the materials can be heated evenly and the drying effect is good.

Description

Dryer unit for medicinal and edible materials
Technical Field
The utility model relates to the technical field of drying equipment, in particular to a drying unit for medicinal and edible materials.
Background
The dryer is mechanical equipment for reducing the moisture of materials by using hot air and is used for drying the materials.
In the prior art, in the patent document with publication number of CN212071098U, a centrifugal spray granulation dryer for improving the yield of materials is proposed, and comprises a drying tank and a discharge tank. This improve centrifugal spray granulation desiccator of material productivity utilizes the motor to rotate, through bevel gear and conical tooth disc intermeshing, make and rotate the cover and can rotate fast, through cleaning plate top and rotating cover bottom fixed connection, make the cleaning plate scrape the material on the material jar inner wall of arranging through first brush hair, be convenient for the material is collected, improve material productivity, effectively prevent still can rotten disqualified material of sensitive wall material that glues, be provided with the wind-guiding annular through rotating the cover outer wall, utilize the hot-blast pipe to transmit hot-blast to the wind-guiding annular inside simultaneously, then carry out stoving work through the shower nozzle secondary, improve drying efficiency, further improve material production speed, and be provided with L type cleaning plate at the drying tank inner wall, can make the shower nozzle be difficult for blockking up through the inboard second brush hair of L type cleaning plate.
Although the prior art spray improves the drying efficiency to a certain extent, in the actual working process, the problem of deterioration caused by insufficient drying of the material inside still occurs.
Disclosure of utility model
Aiming at the defects in the problems, the utility model provides a dryer unit for medicinal and edible materials, which is matched with two groups of stirring structures and four groups of drying structures, so that the equipment can continuously heat and dry the materials in the equipment in the continuous stirring process, and the materials can be heated uniformly in the continuous rolling process, so that the drying effect is good.
In order to solve the problems, the utility model provides a drying unit for medicinal and edible materials, which comprises a supporting frame and a drying box body, wherein the drying box body is arranged at the upper end of the supporting frame, a feeding hopper is arranged at the top end of the drying box body, a drying structure is arranged on the drying box body, a discharging box is arranged on the supporting frame, a discharging hopper is arranged at the bottom end of the discharging box, a stirring structure is arranged on the drying box body, the stirring structure comprises a first stirring structure and a second stirring structure, the first stirring structure is arranged at the left end of the drying box body, the second stirring structure is arranged at the right end of the drying box body, the drying structure comprises a first drying structure, a second drying structure, a third drying structure and a fourth drying structure, the first drying structure and the second drying structure are arranged on the inner wall of the top end of the drying box body, and the third drying structure and the fourth drying structure are arranged on the inner wall of the bottom end of the drying box body.
Preferably, the first stirring structure comprises a first stirring motor, a first rotating shaft, a first stirring shaft and a first stirring rod, a first mounting seat is arranged at the left end of the drying box body, the first stirring motor is arranged at the upper end of the first mounting seat, the output end of the first stirring motor is connected with the first stirring shaft through the first rotating shaft, and the first stirring rod is arranged on the first stirring shaft.
Preferably, the second stirring structure comprises a second stirring motor, a second rotating shaft, a second stirring shaft and a second stirring rod, a second installation seat is arranged at the right end of the drying box body, the second stirring motor is arranged at the upper end of the second installation seat, the output end of the second stirring motor is connected with the second stirring shaft through the second rotating shaft, and the second stirring rod is arranged on the second stirring shaft.
Preferably, the first drying structure comprises a first heat-conducting protective shell, the first heat-conducting protective shell is arranged at the top end of the drying box body, and a first electric heater is arranged in the first heat-conducting protective shell.
Preferably, the second drying structure comprises a second heat conduction protective shell, the second heat conduction protective shell is arranged at the top end of the drying box body, and a second electric heater is arranged in the second heat conduction protective shell.
Preferably, the third drying structure comprises a third heat conduction protective shell, the third heat conduction protective shell is arranged at the bottom end of the drying box body, and a third electric heater is arranged in the third heat conduction protective shell.
Preferably, the fourth drying structure comprises a fourth heat conduction protective shell, the fourth heat conduction protective shell is arranged at the bottom end of the drying box body, and a fourth electric heater is arranged in the fourth heat conduction protective shell.
Compared with the prior art, the utility model has the following advantages:
1. According to the utility model, the two groups of stirring structures and the four groups of drying structures are matched, so that the equipment can continuously heat and dry materials in the equipment in the continuous stirring process, and the materials can be heated uniformly in the continuous rolling process, so that the drying effect is good.
2. The utility model is provided with two groups of hot air structures, each group of hot air structure adopts three-way ventilation pipelines, and the upper end, the lower end and the discharging box of the box body are continuously ventilated through the three-way ventilation pipelines, so that the drying effect of the equipment on materials can be prolonged to the greatest extent.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present utility model.
Detailed Description
The present utility model will be further described in detail with reference to the drawings and examples, which are not intended to limit the utility model, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
As shown in fig. 1, the embodiment of the utility model comprises a support frame 1 and a drying box body 2, wherein the drying box body 2 is arranged at the upper end of the support frame 1, a feed hopper 3 is arranged at the top end of the drying box body 2, a discharge box 4 is arranged on the support frame 1, and a discharge hopper 5 is arranged at the bottom end of the discharge box 4.
In this embodiment, be provided with stirring structure on the drying cabinet 2, stirring structure includes first stirring structure and second stirring structure, and first stirring structure sets up the left end at drying cabinet 2, and the second stirring structure sets up the right-hand member at drying cabinet 2.
In this embodiment, first stirring structure includes first agitator motor 6, first pivot 7, first (mixing) shaft 8 and first (mixing) shaft 9, the left end of drying cabinet 2 is provided with first mount pad 10, first mount pad 10 upper end is provided with first agitator motor 6, the output of first agitator motor 6 is connected with first (mixing) shaft 8 through first pivot 7, be provided with first (mixing) shaft 9 and first (mixing) connection board on first (mixing) shaft 8, first (mixing) connection board includes first left (mixing) connection board 11 and first (mixing) connection board 12, first left (mixing) connection board 11 sets up the left end at first (mixing) shaft 8), first (mixing) connection board 12 sets up the right-hand member at first (mixing) shaft 8, the upper end of first left (mixing) connection board 11 and first (mixing) connection board 12) is provided with first (mixing) upper auxiliary stirring rod 13, and be provided with a plurality of first (mixing) upper stirring leaf on first (mixing) rod 13, the lower extreme of first left (mixing) connection board 11 and first (mixing) connection board 12) is provided with first (mixing) auxiliary stirring rod 14) on first (mixing) lower stirring rod 14, and first (mixing) auxiliary stirring rod 14) is provided with first (mixing) lower stirring leaf on first (mixing) upper stirring rod.
In this embodiment, the second stirring structure includes a second stirring motor 15, a second rotating shaft 16, a second stirring shaft 17 and a second stirring rod 18, the right end of the drying box 2 is provided with a second mounting seat 19, the upper end of the second mounting seat 19 is provided with the second stirring motor 15, the output end of the second stirring motor 15 is connected with the second stirring shaft 17 through the second rotating shaft 16, the second stirring shaft 17 is provided with the second stirring rod 18 and a second stirring connecting plate, the second stirring connecting plate includes a second left stirring connecting plate 20 and a second right stirring connecting plate 21, the second left stirring connecting plate 20 is arranged at the left end of the second stirring shaft 18, the second right stirring connecting plate 21 is arranged at the right end of the second stirring shaft 18, the upper ends of the second left stirring connecting plate 20 and the second right stirring connecting plate 21 are provided with a second upper auxiliary stirring rod 22, the second upper auxiliary stirring rod 22 is provided with a plurality of second upper stirring leaves, the lower ends of the second left stirring connecting plate 20 and the second right stirring connecting plate 21 are provided with a second lower auxiliary stirring rod 23, and the second upper auxiliary stirring rod 23 is provided with a plurality of second lower stirring leaves.
In this embodiment, be provided with the stoving structure on the drying cabinet 2, the stoving structure includes first stoving structure, second stoving structure, third stoving structure and fourth stoving structure, and first stoving structure and second stoving structure set up on the top inner wall of drying cabinet 2, and third stoving structure and fourth stoving structure set up on the bottom inner wall of drying cabinet 2.
In this embodiment, the first drying structure includes a first heat-conducting protective housing 24, the first heat-conducting protective housing 24 is disposed at the top end of the drying cabinet 2, and a first electric heater 25 is disposed in the first heat-conducting protective housing 24, the second drying structure includes a second heat-conducting protective housing 26, the second heat-conducting protective housing 26 is disposed at the top end of the drying cabinet 2, and a second electric heater 27 is disposed in the second heat-conducting protective housing 26, the third drying structure includes a third heat-conducting protective housing 28, the third heat-conducting protective housing 28 is disposed at the bottom end of the drying cabinet 2, and a third electric heater 29 is disposed in the third heat-conducting protective housing 28, the fourth drying structure includes a fourth heat-conducting protective housing 30, the fourth heat-conducting protective housing 30 is disposed at the bottom end of the drying cabinet 2, and a fourth electric heater 31 is disposed in the fourth heat-conducting protective housing 30.
In this embodiment, be provided with hot-blast structure on the drying cabinet 2, hot-blast structure includes first hot-blast structure and second hot-blast structure, and first hot-blast structure sets up the left end at drying cabinet 2, and the second hot-blast structure sets up the right-hand member at drying cabinet 2.
In this embodiment, the first hot air structure includes a first hot air box 32, a plurality of first hot air blowers are disposed in the first hot air box 32, air outlet ends of the first hot air box 32 are respectively communicated with an upper end of the drying box 2, a bottom end of the drying box 2 and a left end of the discharging box 4 through a first upper air outlet pipe 33, a first middle air outlet pipe 34 and a first lower air outlet pipe 34, wherein the first upper air outlet pipe 33 is correspondingly disposed with a left end of the first heat conducting protective shell 24, the first middle air outlet pipe 34 is correspondingly disposed with a left end of the third heat conducting protective shell 28, the first lower air outlet pipe 35 is correspondingly disposed with an inner left end of the discharging box 4, the second hot air structure includes a second hot air box 36, a plurality of second hot air blowers are disposed in the second hot air box 36, and air outlet ends of the second hot air box 36 are respectively communicated with a second upper air outlet pipe 37, a second middle air outlet pipe 38, a second lower air outlet 39 and an upper end of the drying box 2, a bottom end of the drying box 2 and a right end of the discharging box 4, wherein the second upper air outlet pipe 37 is correspondingly disposed with a right end of the second heat conducting protective shell 26, the second middle air outlet pipe 34 is correspondingly disposed with a right end of the second heat conducting protective shell 38, and correspondingly disposed with a right end of the second middle air outlet pipe 38 is correspondingly disposed with a right end of the fourth heat conducting air outlet end of the second hot air outlet 30.
All electric components in the scheme are connected with an adaptive power supply through wires by a person skilled in the art, and an appropriate controller is selected according to actual conditions so as to meet control requirements, specific connection and control sequences, and the electric connection is completed by referring to the following working principles in the working sequence among the electric components, wherein the detailed connection means are known in the art, and the following main description of the working principles and processes is omitted from the description of electric control.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
In the description of the present specification, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the technical solutions of the present patent and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present patent application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present patent application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In the present specification, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or in communication between two elements or in interaction with each other, unless explicitly stated otherwise. The specific meaning of the above terms in this specification will be understood by those of ordinary skill in the art in view of the specific circumstances.
In this specification, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (7)

1.一种可用于药食同源物料的干燥机组,包括支撑架和干燥箱体,所述干燥箱体设置在所述支撑架上端,所述干燥箱体顶端设置有进料斗,所述干燥箱上设置有烘干结构,所述支撑架上设置有出料箱,所述出料箱的底端设置有出料斗,其特征在于,所述干燥箱体上设置有搅拌结构,所述搅拌结构包括第一搅拌结构和第二搅拌结构,所述第一搅拌结构设置在所述干燥箱体的左端,所述第二搅拌结构设置在所述干燥箱体的右端,所述烘干结构包括第一烘干结构、第二烘干结构、第三烘干结构和第四烘干结构,所述第一烘干结构和所述第二烘干结构设置在所述干燥箱体的顶端内壁上,所述第三烘干结构和所述第四烘干结构设置在所述干燥箱的底端内壁上。1. A drying unit that can be used for medicinal and edible materials, comprising a support frame and a drying box, the drying box is arranged at the upper end of the support frame, a feed hopper is arranged at the top of the drying box, a drying structure is arranged on the drying box, a discharge box is arranged on the support frame, and a discharge hopper is arranged at the bottom end of the discharge box, characterized in that a stirring structure is arranged on the drying box, the stirring structure comprises a first stirring structure and a second stirring structure, the first stirring structure is arranged at the left end of the drying box, and the second stirring structure is arranged at the right end of the drying box, the drying structure comprises a first drying structure, a second drying structure, a third drying structure and a fourth drying structure, the first drying structure and the second drying structure are arranged on the top inner wall of the drying box, and the third drying structure and the fourth drying structure are arranged on the bottom inner wall of the drying box. 2.如权利要求1所述的一种可用于药食同源物料的干燥机组,其特征在于,所述第一搅拌结构包括第一搅拌电机、第一转轴、第一搅拌轴和第一搅拌杆,所述干燥箱体的左端设置有第一安装座,所述第一安装座上端设置有所述第一搅拌电机,所述第一搅拌电机的输出端通过所述第一转轴与所述第一搅拌轴连接,所述第一搅拌轴上设置有所述第一搅拌杆。2. A drying unit that can be used for medicinal and edible materials as described in claim 1, characterized in that the first stirring structure includes a first stirring motor, a first rotating shaft, a first stirring shaft and a first stirring rod, a first mounting seat is provided at the left end of the drying box, the first stirring motor is provided at the upper end of the first mounting seat, the output end of the first stirring motor is connected to the first stirring shaft through the first rotating shaft, and the first stirring shaft is provided with the first stirring rod. 3.如权利要求1所述的一种可用于药食同源物料的干燥机组,其特征在于,所述第二搅拌结构包括第二搅拌电机、第二转轴、第二搅拌轴和第二搅拌杆,所述干燥箱体的右端设置有第二安装座,所述第二安装座上端设置有所述第二搅拌电机,所述第二搅拌电机的输出端通过所述第二转轴与所述第二搅拌轴连接,所述第二搅拌轴上设置有所述第二搅拌杆。3. A drying unit that can be used for medicinal and edible materials as described in claim 1, characterized in that the second stirring structure includes a second stirring motor, a second rotating shaft, a second stirring shaft and a second stirring rod, a second mounting seat is provided at the right end of the drying box, the second stirring motor is provided at the upper end of the second mounting seat, the output end of the second stirring motor is connected to the second stirring shaft through the second rotating shaft, and the second stirring shaft is provided with the second stirring rod. 4.如权利要求1所述的一种可用于药食同源物料的干燥机组,其特征在于,所述第一烘干结构包括第一导热保护壳,所述第一导热保护壳设置在所述干燥箱体的顶端,并且所述第一导热保护壳内设置有第一电加热器。4. A drying unit that can be used for medicinal and edible materials as described in claim 1, characterized in that the first drying structure includes a first heat-conductive protective shell, the first heat-conductive protective shell is arranged at the top of the drying box, and a first electric heater is arranged in the first heat-conductive protective shell. 5.如权利要求1所述的一种可用于药食同源物料的干燥机组,其特征在于,所述第二烘干结构包括第二导热保护壳,所述第二导热保护壳设置在所述干燥箱体的顶端,并且所述第二导热保护壳内设置有第二电加热器。5. A drying unit that can be used for medicinal and edible materials as described in claim 1, characterized in that the second drying structure includes a second heat-conductive protective shell, the second heat-conductive protective shell is arranged on the top of the drying box, and a second electric heater is arranged in the second heat-conductive protective shell. 6.如权利要求1所述的一种可用于药食同源物料的干燥机组,其特征在于,所述第三烘干结构包括第三导热保护壳,所述第三导热保护壳设置在所述干燥箱体的底端,并且所述第三导热保护壳内设置有第三电加热器。6. A drying unit that can be used for medicinal and edible materials as described in claim 1, characterized in that the third drying structure includes a third heat-conductive protective shell, the third heat-conductive protective shell is arranged at the bottom end of the drying box, and a third electric heater is arranged in the third heat-conductive protective shell. 7.如权利要求1所述的一种可用于药食同源物料的干燥机组,其特征在于,所述第四烘干结构包括第四导热保护壳,所述第四导热保护壳设置在所述干燥箱体的底端,并且所述第四导热保护壳内设置有第四电加热器。7. A drying unit that can be used for medicinal and edible materials as described in claim 1, characterized in that the fourth drying structure includes a fourth heat-conductive protective shell, the fourth heat-conductive protective shell is arranged at the bottom end of the drying box, and a fourth electric heater is arranged in the fourth heat-conductive protective shell.
CN202323499642.4U 2023-12-21 2023-12-21 Dryer unit for medicinal and edible materials Active CN222560498U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202323499642.4U CN222560498U (en) 2023-12-21 2023-12-21 Dryer unit for medicinal and edible materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202323499642.4U CN222560498U (en) 2023-12-21 2023-12-21 Dryer unit for medicinal and edible materials

Publications (1)

Publication Number Publication Date
CN222560498U true CN222560498U (en) 2025-03-04

Family

ID=94763168

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202323499642.4U Active CN222560498U (en) 2023-12-21 2023-12-21 Dryer unit for medicinal and edible materials

Country Status (1)

Country Link
CN (1) CN222560498U (en)

Similar Documents

Publication Publication Date Title
CN216393004U (en) A steam conditioning and cooling equipment system for feed processing
CN210718552U (en) Drying device is used in rice production and processing
CN207797611U (en) A kind of dendrobium candidum drying unit
CN222560498U (en) Dryer unit for medicinal and edible materials
CN110558485A (en) Tabletting device for oat deep processing
CN218107592U (en) High-efficient compounding device of biomass feedstock
CN217483163U (en) Drying equipment for pet feed production
CN215260925U (en) A new type of oil drying device
CN210980661U (en) Rice drying equipment
CN214447295U (en) Mortar apparatus for producing with stoving function
CN211532741U (en) A high-digestible and disease-resistant frog extruded feed processing and drying device
CN209310451U (en) A kind of livestock forage drying unit
CN210952166U (en) Drying equipment for chicken feed processing
CN218047573U (en) Heating pipeline insulation material compounding device
CN219985654U (en) Residual grain cleaning device of grain drier
CN216308472U (en) Drying equipment for rice processing
CN219199910U (en) Medical intermediate drying equipment
CN220304107U (en) Drying equipment is used in rice processing
CN222012561U (en) Feed production dryer with automatic overturning function
CN107712569B (en) A microwave cooking device for cereal preforming processing
CN219934508U (en) Platinum carbon catalyst production drying device
CN221232909U (en) Drying device of plastic particles for wear-resistant plastics
CN110836585A (en) Feed pellet dries by fire storage bucket
CN219785808U (en) Raw material cleaning equipment
CN218380150U (en) Drying equipment is used in root of kudzu vine processing

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant