CN220242094U - Efficient cleaning equipment for waste plastics - Google Patents

Efficient cleaning equipment for waste plastics Download PDF

Info

Publication number
CN220242094U
CN220242094U CN202321395311.3U CN202321395311U CN220242094U CN 220242094 U CN220242094 U CN 220242094U CN 202321395311 U CN202321395311 U CN 202321395311U CN 220242094 U CN220242094 U CN 220242094U
Authority
CN
China
Prior art keywords
box
flushing
brushing
water
fixed
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
CN202321395311.3U
Other languages
Chinese (zh)
Inventor
徐吉伟
段振佼
赵起武
柴秀娟
唐爱萍
富丰泽
马祥元
陈燕
王晓玲
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.)
Gansu Juneng Environmental Protection Technology Co ltd
Original Assignee
Gansu Juneng Environmental Protection Technology 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 Gansu Juneng Environmental Protection Technology Co ltd filed Critical Gansu Juneng Environmental Protection Technology Co ltd
Priority to CN202321395311.3U priority Critical patent/CN220242094U/en
Application granted granted Critical
Publication of CN220242094U publication Critical patent/CN220242094U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)

Abstract

The utility model discloses efficient waste plastic cleaning equipment, which comprises the following components: the device comprises a flushing box, a brushing box, a bottom plate, a permeable transmission mechanism, a flushing mechanism, a brushing mechanism and a water filtering tank; the flushing box is fixed at the left part of the upper side of the bottom plate, the brushing box is fixed at the right part of the upper side of the bottom plate, and the flushing box and the near side of the brushing box are fixedly connected and communicated with each other; the flushing mechanism is arranged at the inner top of the flushing box, and the conveying mechanism is arranged at the inner lower part of the flushing box; the front side lower part of the brushing box is provided with a sealing waterproof door, the filter water tank is arranged at the lower part in the brushing box in a removable mode, the right end part of the conveying mechanism extends to the inside of the brushing box and is positioned above the filter water tank, and the brushing mechanism is arranged at the inner side of the brushing box in a lifting mode through a lifting driving mechanism. Compared with the prior art, the method has the advantages that: the novel waste plastic washing device can wash waste plastic firstly and then brush, combines two washing modes, and improves the washing effect by washing twice.

Description

Efficient cleaning equipment for waste plastics
Technical Field
The utility model relates to the technical field of waste plastic recovery, in particular to efficient waste plastic cleaning equipment.
Background
The waste plastic is a popular expression, and is not waste, old and unused plastic products, most of plastic products, especially a large number of disposable plastic products, have no great change in the performance of the plastic materials, so that the plastic products are completely possibly recycled and reprocessed into plastic products by a proper method for reuse, the recycled plastic is recycled, the plastic bottle flakes need to be sorted firstly after recycling, and the plastic bottle flakes need to be washed and then smashed after sorting so as not to influence the smashing effect.
The existing cleaning equipment has a single cleaning mode for waste plastics, and most of the existing cleaning equipment washes the waste plastics through water flow, and most of the existing cleaning equipment only cleans the waste plastics once, so that the cleaning effect is poor.
Disclosure of Invention
The utility model aims to solve the technical problems and provide the efficient waste plastic cleaning equipment which can wash and scrub waste plastic and improve the cleaning effect by combining two types of cleaning.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
an efficient cleaning device for waste plastics, comprising:
the device comprises a flushing box, a brushing box, a bottom plate, a permeable transmission mechanism, a flushing mechanism, a brushing mechanism and a water filtering tank;
the flushing box is fixed at the left part of the upper side of the bottom plate, the brushing box is fixed at the right part of the upper side of the bottom plate, and the flushing box and the near side of the brushing box are fixedly connected and communicated with each other;
the upper part of the left side of the flushing box is provided with a feeding pipe in a penetrating way, the bottom of the flushing box is provided with a water outlet with a valve, the flushing mechanism is arranged at the inner top of the flushing box, and the conveying mechanism is arranged at the inner lower part of the flushing box;
the front side lower part of the brushing box is provided with a sealing waterproof door, the filter water tank is arranged at the lower part in the brushing box in a removable mode, the right end part of the conveying mechanism extends to the inside of the brushing box and is positioned above the filter water tank, the brushing mechanism is arranged at the inner side of the brushing box in a lifting mode through the lifting driving mechanism, the top of the brushing box is provided with a water inlet pipe in a penetrating mode, and the right side of the bottom of the brushing box is provided with a sewage outlet with a valve.
As an improvement, transport mechanism includes conveyer belt, a pair of transfer roller and fixes the transport motor in the washout box outside, the conveyer belt cup joints on two transfer rollers, and left transfer roller rotates the inboard left portion that sets up in the washout box, and right transfer roller rotates the inboard left portion that sets up in the washout box, and two transfer rollers are connected through the conveyer belt transmission and are rotated by the drive of transport motor, evenly offered a plurality of hole of permeating water on the conveyer belt, and left end portion is located the below of inlet pipe. Waste plastic can be conveyed from left to right in the novel inner part, water flow can pass through the novel inner part, and the waste plastic can be conveyed from the flushing tank to the flushing tank.
As an improvement, the flushing mechanism comprises a water pump, a first water distribution pipe, a plurality of second water distribution pipes and a plurality of high-pressure spray heads, wherein the water pump, the first water distribution pipe, the plurality of second water distribution pipes and the plurality of high-pressure spray heads are fixed on the upper side of the flushing tank, the first water distribution pipe is fixed on the inner top of the flushing tank and is connected with a water outlet of the water pump, the second water distribution pipe is uniformly arranged on the lower side of the first water distribution pipe and is communicated with the first water distribution pipe, the plurality of high-pressure spray heads are uniformly arranged on the lower side of the second water distribution pipe along the axial direction, and the high-pressure spray heads face towards the conveying belt. The water can be sent to the high-pressure spray head through the water pump, and the high-pressure spray head sprays out waste plastics placed on the conveyor belt, so that the waste plastics can be flushed by water flow.
As an improvement, the positions on the inner walls of the left side and the right side of the brushing box, which correspond to the water filtering boxes, are respectively provided with a lapping plate, the left side and the right side of the top of the water filtering boxes are respectively lapped on the upper sides of the corresponding lapping plates, and the sealing waterproof door is arranged corresponding to the water filtering boxes. The filter water tank can be taken out from the interior of the brushing box by opening the sealing waterproof door, so that the cleaned waste plastic can be taken out.
As an improvement, lift actuating mechanism is including fixing at the driving motor at brush box top, lifter plate, threaded rod, guide bar and fixed plate, the fixed plate is fixed on the right side inner wall of brush box, the threaded rod rotates and sets up between the upside of fixed plate and the interior top of brush box, and top and driving motor's output shaft drive connection, the guide bar is fixed between fixed plate and brush box interior top, the right-hand member screw thread of lifter plate cup joints on the threaded rod, and the activity cup joints on the guide bar. When the waste plastic placed in the water filtering tank needs to be scrubbed, the scrubbing mechanism is driven to descend to the inside of the water filtering tank by the driving lifting plate to scrub the waste plastic, and when the water filtering tank needs to be taken out, the scrubbing mechanism can be driven to ascend to the inside leaving the water filtering tank by the driving lifting plate.
As an improvement, brushing mechanism includes the puddler motor of fixing in lifter plate upside, rotates the dwang that sets up in lifter plate left end downside and four brush-holder stud of fixing respectively on the dwang, the output shaft of puddler motor is connected with the top drive of dwang, and agitator motor sets up in the inside of waterproof case, the upper and lower both sides of brush-holder stud are provided with the brush hair respectively. The brush rod can be driven to rotate by driving the rotating rod to rotate through the stirring motor, so that the bristles can brush the surface of waste plastics.
As an improvement, four corners of the bottom of the flushing box are respectively connected and fixed with the upper side of the bottom plate through supporting rods.
As an improvement, the sealing waterproof door is provided with a transparent observation window. The height of the water level can be observed when water is injected into the brushing box through the water inlet pipe.
Compared with the prior art, the utility model has the advantages that: the utility model discloses a set up washing case, scrub case, washing mechanism and scrubbing mechanism, carry out rivers earlier to waste plastic and wash then soak again to combine together through two kinds of cleaning methods, make waste plastic's washing comparatively thoroughly, and through twice washing, effectively improved waste plastic's cleaning performance.
Drawings
FIG. 1 is a schematic sectional view of a waste plastic high-efficiency cleaning apparatus in a front view.
Fig. 2 is a schematic diagram of a right-view cross-sectional structure of the efficient waste plastic cleaning equipment.
Fig. 3 is a schematic sectional structure view of the efficient cleaning equipment for waste plastics in the overlooking direction.
Fig. 4 is a schematic diagram of a front view structure of a high-efficiency cleaning apparatus for waste plastics according to the present utility model.
As shown in the figure: 1. a flushing box; 2. a brush box; 3. a bottom plate; 4. a water filtering tank; 5. a feed pipe; 6. a water outlet; 7. sealing the waterproof door; 8. a water inlet pipe; 9. a sewage outlet; 10. a conveyor belt; 11. a conveying roller; 12. a conveying motor; 13. a water permeable hole; 14. a water pump; 15. a water distribution pipe I; 16. a water distribution pipe II; 17. a high pressure nozzle; 18. a lapping plate; 19. a driving motor; 20. a lifting plate; 21. a threaded rod; 22. a guide rod; 23. a fixing plate; 24. a stirring motor; 25. a rotating lever; 26. a brush bar; 27. a support rod; 28. and a transparent observation window.
Detailed Description
In the description of the present utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. 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 one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more. In addition, the term "include" and any variations thereof are intended to cover a non-exclusive inclusion.
The present utility model will be described in further detail with reference to the accompanying drawings.
An efficient cleaning device for waste plastics, comprising:
the washing machine comprises a flushing box 1, a brushing box 2, a bottom plate 3, a permeable conveying mechanism, a flushing mechanism, a brushing mechanism and a water filtering tank 4.
The flushing tank 1 is fixed at the left part of the upper side of the bottom plate 3, the flushing tank 2 is fixed at the right part of the upper side of the bottom plate 3, and the adjacent sides of the flushing tank 1 and the flushing tank 2 are fixedly connected and communicated with each other. Specifically, four corners of the bottom of the flushing tank 1 are respectively connected and fixed with the upper side of the bottom plate 3 through support rods 27.
The upper left part of the flushing box 1 is provided with a feed pipe 5 in a penetrating way, the bottom of the flushing box is provided with a water outlet 6 with a valve, the flushing mechanism is arranged at the inner top of the flushing box 1, and the conveying mechanism is arranged at the inner lower part of the flushing box 1. Specifically, the conveying mechanism comprises a conveying belt 10, a pair of conveying rollers 11 and a conveying motor 12 fixed on the outer side of the flushing tank 1, the conveying belt 10 is sleeved on the two conveying rollers 11, the conveying rollers 11 on the left side are rotationally arranged on the left inner side of the flushing tank 1, the conveying rollers 11 on the right side are rotationally arranged on the left inner side of the flushing tank 2, the two conveying rollers 11 are connected through the conveying belt in a transmission mode and are driven to rotate by the conveying motor 12, a plurality of water permeable holes 13 are uniformly formed in the conveying belt 10, and the left end portion of the conveying belt is located below the feeding pipe 5.
Specifically, the flushing mechanism comprises a water pump 14, a first water distribution pipe 15, a plurality of second water distribution pipes 16 and a plurality of high-pressure spray heads 17 which are fixed on the upper side of the flushing tank 1, the first water distribution pipe 15 is fixed on the inner top of the flushing tank 1 and is connected with a water outlet of the water pump 14, the second water distribution pipe 16 is uniformly arranged on the lower side of the first water distribution pipe 15 and is communicated with the first water distribution pipe 15, a plurality of high-pressure spray heads 17 are uniformly arranged on the lower side of the second water distribution pipe 16 along the axial direction, and the high-pressure spray heads 17 face the conveyor belt 10.
It is noted that the water inlet of the water pump 14 is connected to an external water supply.
The front side lower part of scrubbing case 2 is equipped with sealed water proof door 7, and filter tank 4 removable setting is in scrubbing case 2 interior lower part, the right-hand member portion of transport mechanism extends to scrubbing case 2's inside, and is located filter tank 4 top, scrubbing mechanism passes through the inboard that lifting drive mechanism drive over-and-under type set up in scrubbing case 2, scrubbing case 2's top link up and is provided with inlet tube 8, and the bottom right side is provided with drain 9 that has the valve. Specifically, the positions on the inner walls of the left and right sides of the brushing box 2 corresponding to the water filtering box 4 are respectively provided with a lapping plate 18, the left and right sides of the top of the water filtering box 4 are respectively lapped on the upper sides of the corresponding lapping plates 18, and the sealing waterproof door 7 is arranged corresponding to the water filtering box 4.
Specifically, the lifting driving mechanism comprises a driving motor 19 fixed at the top of the brushing box 2, a lifting plate 20, a threaded rod 21, a guide rod 22 and a fixing plate 23, wherein the fixing plate 23 is fixed on the right inner wall of the brushing box 2, the threaded rod 21 is rotatably arranged between the upper side of the fixing plate 23 and the inner top of the brushing box 2, the top end is in driving connection with an output shaft of the driving motor 19, the guide rod 22 is fixed between the fixing plate 23 and the inner top of the brushing box 2, and the right end of the lifting plate 20 is in threaded sleeve joint on the threaded rod 21 and is movably sleeve joint on the guide rod 22.
Specifically, the brushing mechanism includes a stirring motor 24 fixed on the upper side of the lifting plate 20, a rotating rod 25 rotatably disposed on the lower side of the left end of the lifting plate 20, and four brush rods 26 respectively fixed on the rotating rod 25, an output shaft of the stirring motor 24 is in driving connection with the top end of the rotating rod 25, the stirring motor 24 is disposed in the waterproof box, and bristles are disposed on the upper and lower sides of the brush rods 26 respectively.
Specifically, the sealing waterproof door 7 is provided with a transparent observation window 28.
It is worth noting that the conveying motor 12, the water pump 14, the driving motor 19 and the stirring motor 24 used in the present utility model are all existing devices, and the use control method and the circuit connection mode of the above devices are all in the prior art, and the present utility model provides electric energy for the above devices through the wire connection external power supply.
The utility model is implemented in particular:
as shown in fig. 1, the novel plastic washing machine is stably placed on the ground, waste plastic to be washed is then put into the washing box 1 from the feeding pipe 5, the waste plastic can fall to the upper side of the conveying belt 10, the conveying motor 12 is started to drive the conveying belt to convey the waste plastic, the water pump 14 is started, water can be sprayed to the waste plastic through the high-pressure spray nozzle 17 for washing, and the water flow washed by the waste plastic can flow to the bottom of the washing box 1 through the water permeable hole 13 and flows out from the water outlet 6;
the conveyor belt 10 can convey washed waste plastics into the brushing box 2, the waste plastics can drop into the water filtering tank 4, water is injected into the brushing box 2 through the water inlet pipe 8, the water level is observed through the transparent observation window 28, so that clean water just can submerge the waste plastics in the water filtering tank 4, then the driving motor 19 is started to enable the threaded rod 21 to rotate, thereby driving the lifting plate 20 to descend, driving the brush rod 26 to descend to the inner side of the water filtering tank 4, and then the stirring motor 24 is started, namely the brush rod 16 can be driven to rotate, so that the waste plastics are brushed;
after the cleaning is finished, the driving motor 19 is started again, so that the lifting plate drives the brushing mechanism to ascend, the brush rod 26 and the rotating rod 25 completely leave the inner side of the water filtering tank 4, water is discharged from the sewage outlet 9, and then the water filtering tank 4 can be taken out by opening the sealing waterproof door 7, namely, the cleaned waste plastics are taken out.
The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims (8)

1. The utility model provides a high-efficient cleaning equipment of waste plastic, includes washout case (1) and scrubbing case (2), its characterized in that: the device also comprises a bottom plate (3), a permeable conveying mechanism, a flushing mechanism, a brushing mechanism and a water filtering tank (4);
the flushing box (1) is fixed at the left part of the upper side of the bottom plate (3), the brushing box (2) is fixed at the right part of the upper side of the bottom plate (3), and the adjacent sides of the flushing box (1) and the brushing box (2) are fixedly connected and communicated with each other;
the upper part of the left side of the flushing box (1) is provided with a feed pipe (5) in a penetrating way, the bottom of the flushing box is provided with a water outlet (6) with a valve, the flushing mechanism is arranged at the inner top of the flushing box (1), and the conveying mechanism is arranged at the inner lower part of the flushing box (1);
the cleaning device is characterized in that a sealing waterproof door (7) is arranged at the lower part of the front side of the cleaning box (2), the filter water tank (4) is arranged at the lower part in the cleaning box (2) in a removable mode, the right end part of the conveying mechanism extends to the inside of the cleaning box (2) and is located above the filter water tank (4), the cleaning mechanism drives the lifting type cleaning box (2) to be arranged at the inner side of the cleaning box (2) through a lifting driving mechanism, a water inlet pipe (8) is arranged at the top of the cleaning box (2) in a penetrating mode, and a drain outlet (9) with a valve is arranged at the right side of the bottom of the cleaning box.
2. The efficient waste plastic cleaning equipment as claimed in claim 1, wherein: the conveying mechanism comprises a conveying belt (10), a pair of conveying rollers (11) and a conveying motor (12) fixed on the outer side of the flushing box (1), the conveying belt (10) is sleeved on the two conveying rollers (11), the conveying rollers (11) on the left side are rotatably arranged on the left part of the inner side of the flushing box (1), the conveying rollers (11) on the right side are rotatably arranged on the left part of the inner side of the brushing box (2), the two conveying rollers (11) are connected through the conveying belt in a transmission mode and are driven to rotate by the conveying motor (12), a plurality of water permeable holes (13) are uniformly formed in the conveying belt (10), and the left end part of the conveying belt is located below the feeding pipe (5).
3. The efficient waste plastic cleaning equipment as claimed in claim 2, wherein: the flushing mechanism comprises a water pump (14) fixed on the upper side of the flushing tank (1), a first water distribution pipe (15), a plurality of second water distribution pipes (16) and a plurality of high-pressure spray heads (17), wherein the first water distribution pipe (15) is fixed on the inner top of the flushing tank (1) and is connected with a water outlet of the water pump (14), the second water distribution pipe (16) is uniformly arranged on the lower side of the first water distribution pipe (15) and is communicated with the first water distribution pipe (15), a plurality of high-pressure spray heads (17) are uniformly arranged on the lower side of the second water distribution pipe (16) along the axial direction, and the high-pressure spray heads (17) are all oriented to the conveying belt (10).
4. The efficient waste plastic cleaning equipment as claimed in claim 1, wherein: the cleaning device is characterized in that the positions, corresponding to the water filtering tanks (4), on the inner walls of the left side and the right side of the brushing tank (2) are respectively provided with a lapping plate (18), the left side and the right side of the top of the water filtering tanks (4) are respectively lapped on the upper sides of the corresponding lapping plates (18), and the sealing waterproof door (7) is arranged corresponding to the water filtering tanks (4).
5. The efficient waste plastic cleaning equipment as claimed in claim 1, wherein: the lifting driving mechanism comprises a driving motor (19) fixed at the top of the brushing box (2), a lifting plate (20), a threaded rod (21), a guide rod (22) and a fixing plate (23), wherein the fixing plate (23) is fixed on the right inner wall of the brushing box (2), the threaded rod (21) is rotatably arranged between the upper side of the fixing plate (23) and the inner top of the brushing box (2), the top end part of the threaded rod is in driving connection with an output shaft of the driving motor (19), the guide rod (22) is fixed between the fixing plate (23) and the inner top of the brushing box (2), and the right end part of the lifting plate (20) is in threaded sleeve joint with the threaded rod (21) and is movably sleeve joint with the guide rod (22).
6. The efficient waste plastic cleaning equipment according to claim 5, wherein: the brushing mechanism comprises a stirring motor (24) fixed on the upper side of the lifting plate (20), a rotating rod (25) rotatably arranged on the lower side of the left end part of the lifting plate (20) and four brush rods (26) respectively fixed on the rotating rod (25), an output shaft of the stirring motor (24) is in driving connection with the top end part of the rotating rod (25), the stirring motor (24) is arranged in the waterproof box, and bristles are respectively arranged on the upper side and the lower side of the brush rods (26).
7. The efficient waste plastic cleaning equipment as claimed in claim 1, wherein: four corners of the bottom of the flushing box (1) are respectively connected and fixed with the upper side of the bottom plate (3) through supporting rods (27).
8. The efficient waste plastic cleaning equipment as claimed in claim 1, wherein: the sealing waterproof door (7) is provided with a transparent observation window (28).
CN202321395311.3U 2023-06-02 2023-06-02 Efficient cleaning equipment for waste plastics Active CN220242094U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321395311.3U CN220242094U (en) 2023-06-02 2023-06-02 Efficient cleaning equipment for waste plastics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321395311.3U CN220242094U (en) 2023-06-02 2023-06-02 Efficient cleaning equipment for waste plastics

Publications (1)

Publication Number Publication Date
CN220242094U true CN220242094U (en) 2023-12-26

Family

ID=89269775

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321395311.3U Active CN220242094U (en) 2023-06-02 2023-06-02 Efficient cleaning equipment for waste plastics

Country Status (1)

Country Link
CN (1) CN220242094U (en)

Similar Documents

Publication Publication Date Title
CN206380636U (en) A kind of potato washing collection device
CN209999536U (en) processing device for recycling shower gel plastic bottles
CN109700051B (en) Chilli cleaning system
CN211636173U (en) Self-cleaning mixing and stirring processing equipment
CN111687099B (en) Mechanical cleaning environmental protection equipment
CN220242094U (en) Efficient cleaning equipment for waste plastics
CN212759948U (en) Belt cleaning device for machining
CN110293085B (en) Belt cleaning device is used in processing of artichoke leaf
CN218014719U (en) Bottle washing machine
CN112999915A (en) Self-cleaning mixing and stirring processing equipment
CN217314647U (en) Waste plastic sheet cleaning device
CN212892438U (en) Cleaning of mesh belt for conveying glass bottle
CN211027395U (en) Chemical reaction kettle cleaning device
CN214431618U (en) Hot pepper belt cleaning device
CN212525169U (en) Food production is with circulation wiper mechanism
CN211757067U (en) Cleaning and grading equipment for production of traditional Chinese medicine decoction pieces
CN212329030U (en) Cleaning machine for food processing
CN211322967U (en) Multi-functional majia shaddock belt cleaning device
CN208758137U (en) A kind of automatic brushing decontamination plant
CN111772210A (en) Full-automatic cleaning and drying processing technology of soybeans
CN214077973U (en) Bile cleaning treatment pool
CN214243786U (en) Bottled water conveyor
CN220238300U (en) Disinfectant preparation device with self-cleaning function
CN214555802U (en) Intelligent CIP online cleaning system of probiotic production
CN220825218U (en) Raw material cleaning machine

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant