CN107021306B - A kind of portable bottom goes out formula dustbin - Google Patents
A kind of portable bottom goes out formula dustbin Download PDFInfo
- Publication number
- CN107021306B CN107021306B CN201710212025.1A CN201710212025A CN107021306B CN 107021306 B CN107021306 B CN 107021306B CN 201710212025 A CN201710212025 A CN 201710212025A CN 107021306 B CN107021306 B CN 107021306B
- Authority
- CN
- China
- Prior art keywords
- dustbin
- fixed
- slot
- rubbish
- refuse bag
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F1/00—Refuse receptacles; Accessories therefor
- B65F1/04—Refuse receptacles; Accessories therefor with removable inserts
- B65F1/06—Refuse receptacles; Accessories therefor with removable inserts with flexible inserts, e.g. bags or sacks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F1/00—Refuse receptacles; Accessories therefor
- B65F1/12—Refuse receptacles; Accessories therefor with devices facilitating emptying
- B65F1/125—Features allowing the receptacle to be lifted and emptied by its bottom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F1/00—Refuse receptacles; Accessories therefor
- B65F1/14—Other constructional features; Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Abstract
The invention discloses a kind of portable bottoms to go out formula dustbin, it includes dustbin body, rubbish barrel soleplate, promotes gear unit and refuse bag fixed cell, wherein, rubbish barrel soleplate is hinged on the bottom position of dustbin body, it promotes gear unit to be arranged near the medial surface of dustbin body, refuse bag fixed cell is evenly arranged on the upper outside wall of dustbin body；Promoting gear unit includes lifting folded plate, push rod and transmission button, and lifting folded plate is hingedly mounted on third axis, and the upper end of push rod is hinged on folded plate otic placode by articulated shaft, and the lower end of push rod is hinged on by articulated shaft to be stretched out on plate otic placode.Refuse bag fixed cell of the invention is fixed to the refuse bag position of placement to be made that guarantees, promotes gear unit and completes to release refuse bag from dustbin bottom by the folding of rubbish barrel soleplate, avoid because rubbish it is overweight caused by refuse bag damage sequence；Result simple operations of the present invention are convenient, ensure that rubbish send the reliability to public garbage bin.
Description
Technical field:
The present invention relates to articles for daily use technical fields, and in particular to a kind of portable bottom goes out formula dustbin.
Background technique:
Dustbin can all appear in everybody sight as essential a part in daily life cleaning operation daily
Among, it is all the garbage containing device of our clean and tidy clean environments, existing skill either in public region, family or company
In art, dustbin majority is put into polybag with metal or plastic cement system, used time, loses when rubbish more than one can tie up refuse bag.
Household garbage bin dustbin especially for kitchen use, it is overweight to will appear rubbish in use, is taking out rubbish
The damage of refuse bag top edge or bottom is caused during bag, causes the secondary waste for enabling us have a headache processing, is thrown away rubbish at us
To refuse bag, it also will appear refuse bag and slide the embarrassment to dustbin；How to design a kind of can consolidate refuse bag
It is scheduled in dustbin, while not needing overweight refuse bag taking out the dustbin thrown away to be the technical issues of we face.
Summary of the invention:
The purpose of the present invention is to the deficiencies in the prior art, provides a kind of portable bottom and go out formula dustbin.
To achieve the above object, technology solution of the invention is as follows:
A kind of portable bottom goes out formula dustbin comprising dustbin body, promotes gear unit and refuse bag at rubbish barrel soleplate
Fixed cell, wherein rubbish barrel soleplate is hinged on the bottom position of dustbin body, promotes gear unit and dustbin body is arranged in
Near medial surface, refuse bag fixed cell is evenly arranged on the upper outside wall of dustbin body；Two opposite side of dustbin body bottom
Rectangular A slot and rectangular B slot are offered respectively, are respectively fixed with first axle and second on wall surface inside rectangular A slot and rectangular B slot
Axis is also provided with rectangular C slot above rectangular A slot, gear unit supporting block, gear unit branch is fixedly installed in rectangular C slot
Bracer is concave structure, and third axis is fixed on concave structure side wall；Rubbish barrel soleplate side is symmetrically fixed with two bottom plate ears
Plate, two bottom plate otic placodes are hinged on the second axis, and the other side of rubbish barrel soleplate is provided with base tub, are fixed on base tub medial surface
Bottom plate button is installed, bottom plate button is fold-type structure, and the upper side of bottom plate button is provided with the first lozenges, the first lozenges and level
Face angle is 45 °；Promoting gear unit includes lifting folded plate, push rod and transmission button, and lifting folded plate is hingedly mounted on third axis
On, the top bottom side for lifting folded plate is provided with folded plate otic placode, and the upper end of push rod is hinged on folded plate otic placode by articulated shaft, passes
The top of dynamic button is hinged in first axle, and the upper end side for being driven button, which is equipped with, stretches out plate, is stretched out on the upside of plate to be provided with and is stretched out plate ear
Plate, the lower end of push rod is hinged on by articulated shaft to be stretched out on plate otic placode, and the bottom for being driven button is provided with overlap joint platform, overlaps platform
Downside is provided with the second lozenges, and the second lozenges angle with horizontal plane is 45 °, under the upper side and bottom plate button that overlap platform
Side overlap joint is fixed.
The lower middle position of lifting folded plate offers folded plate through slot, and the first strong magnetic is fixedly installed with inside folded plate through slot
Iron offers supporting block groove on the concave structure side wall of gear unit supporting block, and supporting block inside grooves are fixed with the last the second
Power magnet, the first strong magnets and the second strong magnets opposite face are that there is a natural attraction between the sexes face.
Three pairs of ladle body otic placodes are uniformly fixed on dustbin body upper outside wall, the middle part downside of each pair of ladle body otic placode is also solid
Determine the first spring anchor block；Refuse bag fixed cell includes briquetting and adjustable spring, and briquetting is " m " type structure, pressing
The middle part of block is hinged on ladle body otic placode by articulated shaft, and the lower inside surface of briquetting is fixedly installed second spring and fixes
Block, adjustable spring two sides are separately mounted on the first spring anchor block and second spring fixed block.
A pair of of handle otic placode, two handle otic placodes are also fixed on the top dustbin body lateral wall of rectangular B slot
Between rubbish handle for bucket is fixedly mounted.
Dustbin body and rubbish barrel soleplate are made of stainless steel material, and corrosion-resistant material is coated on dustbin body inner sidewall
Expect, resistant material is coated on the upper side of rubbish barrel soleplate.
Being provided on the inside of dustbin body prevents from being promoted the protection housing that gear unit is placed into rubbish touching interference.
The beneficial effects of the present invention are:
A kind of portable bottom of the invention goes out formula dustbin, includes promoting gear unit and refuse bag fixed cell, rubbish
Bag fixed cell is fixed to the refuse bag position of placement to be made that guarantee, and promoting gear unit can opening by rubbish barrel soleplate
Close complete refuse bag is released from dustbin bottom, avoid because rubbish it is overweight caused by refuse bag damage sequence；The present invention
As a result simple operations are convenient, ensure that rubbish send the reliability to public garbage bin.
Detailed description of the invention:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is partial structural diagram of the invention；
Fig. 3 is another viewing angle constructions schematic diagram of the present invention；
Fig. 4 is partial structure sectional view of the present invention；
Fig. 5 is the structural schematic diagram of rubbish barrel soleplate；
Fig. 6 is the structural schematic diagram of refuse bag fixed cell.
Specific embodiment:
In order to keep the above objects, features and advantages of the present invention more obvious and easy to understand, with reference to the accompanying drawing to this hair
Bright specific embodiment is described in detail.
As shown in figures 1 to 6, a kind of portable bottom goes out formula dustbin comprising dustbin body 10, promotes biography at rubbish barrel soleplate 11
Moving cell and refuse bag fixed cell 3, wherein rubbish barrel soleplate 11 is hinged on the bottom position of dustbin body 10, is promoted and is passed
Moving cell is arranged near the medial surface of dustbin body 10, and refuse bag fixed cell 3 is evenly arranged in the top of dustbin body 10
On lateral wall；10 bottom of dustbin body, two opposite side offers rectangular A slot 101 and rectangular B slot 102, rectangular A slot 101 and side respectively
First axle 201 and the second axis 114 are respectively fixed on 102 inside wall surface of shape B slot, the top of rectangular A slot 101 is also provided with rectangular
C slot, gear unit supporting block 13 is fixedly installed in rectangular C slot, and gear unit supporting block 13 is concave structure, concave structure side
Third axis is fixed on wall；11 side of rubbish barrel soleplate is symmetrically fixed with two bottom plate otic placodes 113, and two bottom plate otic placodes 113 are cut with scissors
It connects on the second axis 114, the other side of rubbish barrel soleplate 11 is provided with base tub 110, is fixedly installed on 110 medial surface of base tub
Bottom plate button 111, bottom plate button 111 are fold-type structure, and the upper side of bottom plate button 111 is provided with the first lozenges 112, the first lozenges
112 angles with horizontal plane are 45 °；Promoting gear unit includes lifting folded plate 21, push rod 22 and transmission button 20, lifts folded plate 21
It is hingedly mounted on third axis, the top bottom side of lifting folded plate 21 is provided with folded plate otic placode 2011, and the upper end of push rod 22 passes through
Articulated shaft is hinged on folded plate otic placode 2011, and the top of transmission button 20 is hinged in first axle 201, the upper end side of transmission button 20
Equipped with plate is stretched out, stretches out on the upside of plate to be provided with and stretch out plate otic placode 202, the lower end of push rod 22 is hinged on stretching plate by articulated shaft
On otic placode 202, the bottom of transmission button 20 is provided with overlap joint platform, and the downside for overlapping platform is provided with the second lozenges, the second wedge shape
Face angle with horizontal plane is 45 °, and the downside overlap joint of the upper side and bottom plate button 111 that overlap platform is fixed.
The lower middle position of lifting folded plate 21 offers folded plate through slot, and the first strength is fixedly installed with inside folded plate through slot
Magnet 211 offers supporting block groove on the concave structure side wall of gear unit supporting block 13, and supporting block inside grooves are fixed with
Second strong magnets 131, the first strong magnets 211 and 131 opposite face of the second strong magnets are there is a natural attraction between the sexes face.
Three pairs of ladle body otic placodes 103, the middle part of each pair of ladle body otic placode 103 are uniformly fixed on 10 upper outside wall of dustbin body
Also fixed first spring anchor block 104 in downside；Refuse bag fixed cell 3 includes briquetting 30 and adjustable spring 31, briquetting
30 be " m " type structure, and the middle part of briquetting 30 is hinged on ladle body otic placode 103 by articulated shaft, the lower inside of briquetting 30
Face is fixedly installed second spring fixed block 301, and 31 two sides of adjustable spring are separately mounted to the first spring anchor block 104 and second
On spring anchor block 301.
Also it is fixed with a pair of of handle otic placode 121 on 10 lateral wall of top dustbin body of rectangular B slot 102, two
Rubbish handle for bucket 12 is fixedly mounted between handle otic placode 121.
Dustbin body 10 and rubbish barrel soleplate 11 are made of stainless steel material, and corrosion resistant is coated on 10 inner sidewall of dustbin body
Corrosion material is coated with resistant material on the upper side of rubbish barrel soleplate 11.
Being provided on the inside of dustbin body 10 prevents from being promoted the protection housing that gear unit is placed into rubbish touching interference.
Go out in formula dustbin in use, new refuse bag is put into portable bottom, refuse bag fixed cell 3 is pressed, by refuse bag
The position that the part for stretching out dustbin body 10 is fixed on dustbin body 10 and briquetting 30 presses, makes to throw away refuse bag when into rubbish
Position does not change；When rubbish needs to clear up more, the part that refuse bag is stretched out dustbin body 10 is fixed single from refuse bag
It is removed in member 3, portable bottom is gone out formula dustbin and is put into the big dustbin of public region by handheld garbage bin handle 12, pulls lifting
Folded plate 21, push rod 22 drive transmission button 20 to rotate around first axle 201 under the pulling of lifting folded plate 21, the bottom of transmission button 20
Portion overlaps platform and the overlap joint of bottom plate button 111 is detached from, and rubbish barrel soleplate 11 rotates under the action of rubbish weight around the second axis 114,
In refuse bag just out of, portable bottom goes out that formula dustbin bottom crashes into public region big dustbin, rubbish cleaning is completed；It is proposed hand
It mentions after bottom goes out formula dustbin, rubbish barrel soleplate 11 is pasted into ground and is placed, hand takes the downward push of rubbish handle for bucket 12, bottom plate button 111
The first lozenges 112 and transmission button 20 the second lozenges between smoothly move, until overlap joint platform upper side and bottom plate button
111 downside, which overlaps, to be fixed；The interattraction of first strong magnets 211 and the second strong magnets 131 ensure that lifting folded plate
21 effect that automatically resets.
The embodiment is to be illustrated the present invention, and is not intended to limit the present invention.Anyone skilled in the art
Without departing from the spirit and scope of the present invention, it modifies to the embodiment, therefore rights protection model of the invention
It encloses, should be as listed in the claims of the present invention.
Claims (6)
1. a kind of portable bottom goes out formula dustbin, it is characterised in that: including dustbin body (10), rubbish barrel soleplate (11), promote biography
Moving cell and refuse bag fixed cell (3), wherein rubbish barrel soleplate (11) is hinged on the bottom position of dustbin body (10),
It promotes gear unit to be arranged near the medial surface of dustbin body (10), refuse bag fixed cell (3) is evenly arranged in dustbin
On the upper outside wall of body (10)；Two opposite side of dustbin body (10) bottom offers rectangular A slot (101) and rectangular B slot respectively
(102), it is respectively fixed with first axle (201) and the second axis (114) on rectangular A slot (101) and the internal wall surface of rectangular B slot (102),
It is also provided with rectangular C slot above rectangular A slot (101), is fixedly installed in rectangular C slot gear unit supporting block (13), is driven
Unit supports block (13) is concave structure, is fixed with third axis on concave structure side wall；Rubbish barrel soleplate (11) side is symmetrically solid
It is fixed that there are two bottom plate otic placode (113), two bottom plate otic placodes (113) are hinged on the second axis (114), rubbish barrel soleplate (11) it is another
Side is provided with base tub (110), is fixedly installed with bottom plate button (111) on base tub (110) medial surface, and bottom plate button (111) is folding
Type structure, the upper side of bottom plate button (111) are provided with the first lozenges (112), and the first lozenges (112) angle with horizontal plane is
45°；Promoting gear unit includes lifting folded plate (21), push rod (22) and transmission button (20), and lifting folded plate (21) is hingedly installed
On third axis, the top bottom side of lifting folded plate (21) is provided with folded plate otic placode (2011), and the upper end of push rod (22) passes through hinge
Spindle is hinged on folded plate otic placode (2011), is hinged on first axle (201) at the top of transmission button (20), and the upper of (20) is detained in transmission
End side portion, which is equipped with, stretches out plate, stretches out on the upside of plate to be provided with and stretches out plate otic placode (202), and the lower end of push rod (22) is cut with scissors by articulated shaft
It connects on stretching out plate otic placode (202), the bottom of transmission button (20) is provided with overlap joint platform, and the downside for overlapping platform is provided with the second wedge
Shape face, the second lozenges angle with horizontal plane are 45 °, and the downside overlap joint of the upper side and bottom plate button (111) that overlap platform is fixed.
2. a kind of portable bottom according to claim 1 goes out formula dustbin, it is characterised in that: in the lower part of lifting folded plate (21)
Between position offer folded plate through slot, the first strong magnets (211), gear unit supporting block are fixedly installed with inside folded plate through slot
(13) supporting block groove is offered on concave structure side wall, supporting block inside grooves are fixed with the second strong magnets (131), the
One strong magnets (211) and the second strong magnets (131) opposite face are that there is a natural attraction between the sexes face.
3. a kind of portable bottom according to claim 1 goes out formula dustbin, it is characterised in that: dustbin body (10) upper outside
Three pairs of ladle body otic placodes (103) are uniformly fixed on wall, also fixed first spring is solid on the downside of the middle part of each pair of ladle body otic placode (103)
Determine block (104)；Refuse bag fixed cell (3) includes briquetting (30) and adjustable spring (31), and briquetting (30) is " m " type knot
The middle part of structure, briquetting (30) is hinged on ladle body otic placode (103) by articulated shaft, and the lower inside surface of briquetting (30) is fixed
It is provided with second spring fixed block (301), adjustable spring (31) two sides are separately mounted to the first spring anchor block (104) and second
On spring anchor block (301).
4. a kind of portable bottom according to claim 1 goes out formula dustbin, it is characterised in that: be located at the upper of rectangular B slot (102)
It is also fixed with a pair of of handle otic placode (121) on portion's dustbin body (10) lateral wall, is fixedly mounted between two handle otic placodes (121)
Rubbish handle for bucket (12).
5. a kind of portable bottom according to claim 1 goes out formula dustbin, it is characterised in that: dustbin body (10) and dustbin
Bottom plate (11) is made of stainless steel material, and resistant material, rubbish barrel soleplate (11) are coated on dustbin body (10) inner sidewall
Upper side on be coated with resistant material.
6. a kind of portable bottom according to claim 1 goes out formula dustbin, it is characterised in that: setting on the inside of dustbin body (10)
Having prevents from being promoted the protection housing that gear unit is placed into rubbish touching interference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710212025.1A CN107021306B (en) | 2017-04-01 | 2017-04-01 | A kind of portable bottom goes out formula dustbin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710212025.1A CN107021306B (en) | 2017-04-01 | 2017-04-01 | A kind of portable bottom goes out formula dustbin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107021306A CN107021306A (en) | 2017-08-08 |
| CN107021306B true CN107021306B (en) | 2019-04-26 |
Family
ID=59527775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710212025.1A Active CN107021306B (en) | 2017-04-01 | 2017-04-01 | A kind of portable bottom goes out formula dustbin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107021306B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107521884B (en) * | 2017-08-10 | 2020-06-12 | 张洁 | Dormitory rubbish automatic processing apparatus |
| CN107512508B (en) * | 2017-08-10 | 2020-08-28 | 海门茵萃斯纺织品有限公司 | Dormitory garbage centralized treatment method |
| CN109539027A (en) * | 2018-11-27 | 2019-03-29 | 陈玉燕 | A kind of wall-mounted LED light convenient for adjusting disassembly |
| CN109533724B (en) * | 2018-12-05 | 2024-05-24 | 王洪桥 | Dustbin |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0820405A (en) * | 1994-06-21 | 1996-01-23 | Takashi Okuki | Bottom cover opening/closing exhaust type refuse bin |
| DE102006016697A1 (en) * | 2006-03-24 | 2007-10-11 | Heinz-Dieter Bauer | Portable container e.g. for collection and transport of bulk materials, has circular container with pivoting bottom flap which covers entire interior of container slot |
| CN201280317Y (en) * | 2008-09-27 | 2009-07-29 | 清华大学 | Intermittent lower cover-opening wastebin |
| KR20120119536A (en) * | 2011-04-21 | 2012-10-31 | (주)클린 | A garbage |
| CN104340566A (en) * | 2013-07-30 | 2015-02-11 | 江苏德皇文具有限公司 | Novel garbage basket |
| CN104709642A (en) * | 2013-12-14 | 2015-06-17 | 王心怡 | Garbage can facilitating garbage dumping |
-
2017
- 2017-04-01 CN CN201710212025.1A patent/CN107021306B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0820405A (en) * | 1994-06-21 | 1996-01-23 | Takashi Okuki | Bottom cover opening/closing exhaust type refuse bin |
| DE102006016697A1 (en) * | 2006-03-24 | 2007-10-11 | Heinz-Dieter Bauer | Portable container e.g. for collection and transport of bulk materials, has circular container with pivoting bottom flap which covers entire interior of container slot |
| CN201280317Y (en) * | 2008-09-27 | 2009-07-29 | 清华大学 | Intermittent lower cover-opening wastebin |
| KR20120119536A (en) * | 2011-04-21 | 2012-10-31 | (주)클린 | A garbage |
| CN104340566A (en) * | 2013-07-30 | 2015-02-11 | 江苏德皇文具有限公司 | Novel garbage basket |
| CN104709642A (en) * | 2013-12-14 | 2015-06-17 | 王心怡 | Garbage can facilitating garbage dumping |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107021306A (en) | 2017-08-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107021306B (en) | A kind of portable bottom goes out formula dustbin | |
| CN102935919A (en) | Convenient garbage can | |
| CN208470678U (en) | A kind of folding cover type garbage bin | |
| CN207618366U (en) | A kind of novel link driven type compressed garbage bucket | |
| CN104210784A (en) | Variable volume waste bin with adjustable height | |
| KR101615322B1 (en) | Compression type garbage can | |
| CN114476439A (en) | Environmental protection dustbin capable of preventing rubbish from falling outside | |
| CN206705028U (en) | A kind of medical waste bucket easy to use | |
| CN205274362U (en) | Compression intelligent garbage can | |
| CN106364817A (en) | Clean type dustbin convenient to empty and special for outdoor use | |
| CN205708315U (en) | A kind of environment-friendly trash can | |
| CN209396365U (en) | A kind of diaper pail | |
| CN208485115U (en) | A kind of dustbin having overturning-preventing function | |
| CN204021647U (en) | A kind of adjustable for height varying capacity sewage disposer | |
| CN203473691U (en) | Labor-saving garbage can with lever | |
| CN211643410U (en) | A intelligent garbage bin for office building | |
| CN205771206U (en) | The refuse receptacle that a kind of sanitationman of convenience sweeps | |
| CN102092546B (en) | Combined trash can | |
| CN205972557U (en) | Pedal refuse can | |
| CN202027539U (en) | Dustpan preventing garbage from leaking | |
| CN203833052U (en) | Convenient waste bin | |
| CN205098807U (en) | Convenient household trash bin | |
| CN209988454U (en) | Intelligent garbage can | |
| CN103754530A (en) | Metal trash bin easy to clean | |
| CN208631347U (en) | A kind of full-automatic dustbin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190329 Address after: 317100 No. 16 Kangning Road, Shaliu Town, Sanmen County, Taizhou City, Zhejiang Province Applicant after: Ye Sainan Address before: 523000 Songshan Lake productivity building, Dongguan, Guangdong 408 Applicant before: Chen Yuyan |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |