CN106742969A - A kind of dustbin for avoiding being opened accidentally - Google Patents
A kind of dustbin for avoiding being opened accidentally Download PDFInfo
- Publication number
- CN106742969A CN106742969A CN201611187255.9A CN201611187255A CN106742969A CN 106742969 A CN106742969 A CN 106742969A CN 201611187255 A CN201611187255 A CN 201611187255A CN 106742969 A CN106742969 A CN 106742969A
- Authority
- CN
- China
- Prior art keywords
- staving
- pedal
- dustbin
- push rod
- cylinder
- 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.)
- Granted
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
- B65F1/14—Other constructional features; Accessories
- B65F1/16—Lids or covers
- B65F1/1623—Lids or covers with means for assisting the opening or closing thereof, e.g. springs
- B65F1/163—Pedal-operated lids
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Refuse Receptacles (AREA)
Abstract
The invention discloses a kind of dustbin for avoiding and being opened accidentally, including staving and the storing bin being arranged inside the staving, rotated on staving and be provided with bung, two pedals are provided with staving, respectively first pedal and second pedal, first pedal and second pedal are respectively connected with first tumbler and second tumbler by first connecting rod and second connecting rod respectively, torsion spring is provided with first tumbler and second tumbler for resetting, first pedal and second pedal lower section are provided with and are respectively arranged with first reservoir and second reservoir, first reservoir is connected with first transfusion cylinder, first transfusion cylinder is connected with vertical piston cylinder, first piston rod is movably set with piston cylinder, first piston rod end is connected with base plate, push rod is connected with base plate, bung bottom and push rod position directly above is provided with bearing plate.Compared with prior art, simple structure low cost of the present invention, easily manufactured to be easy to promote on a large scale, still adult can easily open again to be prevented from child.
Description
Technical field
The present invention relates to dustbin field, more particularly to a kind of dustbin for avoiding being opened accidentally.
Background technology
Dustbin, also known as litter-bin or dustbin, exactly put the place of rubbish.Dustbin majority is with metal or plastic cement
System, the used time is put into polybag, when rubbish is lost once that can tie up bag more.Most dustbins have lid in case the peculiar smell four of rubbish
Dissipate, some dustbins can be with foot pedal opening.Dustbin is the container " sheltered evil people and countenance evil practices " during people live, and is also socio-cultural
One kind refraction.The dustbin majority of household is put in kitchen, to place food waste.Some families all can respectively put one in main room
It is individual.The dustbin of some recreation grounds can be specifically designed to angel's thing.
There are various rubbish in dustbin, wherein can there are some sharp sharp objects, or food waste article.And
If there is a child in family, because the curious nature of child, all articles that can be got at can be all put into product in mouth by them
Taste its taste.Therefore, for child, the rubbish in these dustbins is breakneck.And in the market existing general
In logical dustbin, for cost and convenient consideration, one kind is not designed can allow the age less child can not to open,
But the dustbin that adult or sensible child can conveniently open.
The content of the invention
The present invention be directed to deficiency of the prior art, there is provided a kind of dustbin for avoiding being opened accidentally, simple structure into
This is low, easily manufactured to be easy to promote on a large scale, and still adult can easily open again to be prevented from child.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：One kind avoids being opened accidentally
Dustbin, including staving and the storing bin that is arranged inside the staving are rotated on the staving and are provided with bung, the staving
On be provided with two pedals, respectively first pedal and second pedal, the first pedal and the second pedal pass through first connecting rod respectively
First tumbler and second tumbler are respectively connected with second connecting rod, torsion spring is provided with the first tumbler and second tumbler for multiple
Position, the first pedal and second pedal lower section are provided with and are respectively arranged with first reservoir and second reservoir, the first reservoir connection
There is first transfusion cylinder, the first transfusion cylinder is connected with vertical piston cylinder, and first piston rod is movably set with the piston cylinder, described
First piston rod end is connected with base plate, is connected with push rod on the base plate, the bung bottom and positioned at the push rod just
Top position is provided with bearing plate, and guide plate is provided with the staving, and the push rod may pass through the guide plate and be held described
Pressing plate jack-up is so that bung upset, is provided with back-moving spring, the second reservoir between the guide plate and the base plate
Second transfusion cylinder is connected with, second piston rod is movably set with the second transfusion cylinder, the second piston rod end is provided with top board, institute
State top board to be arranged at the storing bin lower section and shifting on the storing bin can be promoted, second transfusion cylinder and the vertical piston cylinder
It is connected, the second piston-rod lower end part covers the liquid-transport pipe-line that the second transfusion cylinder is connected with piston cylinder.
The push rod top be provided with hemisphere for and bearing plate contact when reduce rub.
The push rod bottom is provided with screw thread, and the push rod is connected through a screw thread mode and is installed on the base plate.
Gap is provided with the push rod can be clamped herein for rotating the push rod with spanner.
The piston cylinder is installed with the inner wall of barrel by mounting bracket, and the piston cylinder end is provided with end plate.
First postive stop baffle is provided with outside the first reservoir, second postive stop baffle is provided with outside the second reservoir.
The bung is connected by hinge with the staving, and positive stop is provided with the staving, is set on the bung
Briquetting is equipped with, the briquetting is pressed on the positive stop and the top surface of the upper surface of the bung and the staving is flushed or low
In the top surface.
Simple structure low cost of the present invention, it is easily manufactured to be easy to promote on a large scale, but it is prevented from child grows up
People can easily open again.
Brief description of the drawings
Fig. 1 is external structure schematic diagram of the invention.
Fig. 2 is internal structure left side of the invention perspective diagram.
Fig. 3 is internal structure right side of the invention perspective diagram.
Fig. 4 is structural representation when first pedal of the invention works.
Fig. 5 is first pedal of the invention and the work of second pedal structural representation when working together.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：As shown in Figures 1 to 5, one
The dustbin for avoiding being opened accidentally, including staving 1 and the storing bin 14 being arranged inside the staving 1 are planted, is rotated on the staving 1
Bung 2 is provided with, two pedals, respectively first pedal 3 and second pedal 4, the He of first pedal 3 are provided with the staving 1
The second pedal 4 is respectively connected with first tumbler 32 and second tumbler 42, the first by first connecting rod 31 and second connecting rod 41 respectively
Torsion spring is provided with tumbler 32 and second tumbler 42 for resetting, the first pedal 3 and the lower section of second pedal 4 are provided with and set respectively
It is equipped with first reservoir 51 and second reservoir 61, the first reservoir 51 is connected with first transfusion cylinder 5, the first transfusion cylinder 5 and vertically
Piston cylinder 7 be connected, is movably set with first piston rod 81 in the piston cylinder 7, the end of first piston rod 81 is connected with base plate
82, it is connected with push rod 8 on the base plate 82, the bottom of the bung 2 and being provided with positioned at the position directly above of the push rod 8 is held
Guide plate 11 is provided with pressing plate 21, the staving 1, the push rod 8 may pass through the guide plate 11 and push up the bearing plate 21
Rise so that bung 2 overturns, back-moving spring 86, the second reservoir are provided between the guide plate 11 and the base plate 82
61 are connected with second transfusion cylinder 6, and second piston rod 9 is movably set with the second transfusion cylinder 6, and the end of second piston rod 9 is provided with
Top board 91, the top board 91 is arranged at the lower section of the storing bin 14 and can promote and moved on the storing bin 14, the second transfusion
Cylinder 6 is connected with vertical piston cylinder 7, and the end portion of second piston rod 9 covers what the second transfusion cylinder 6 was connected with piston cylinder 7
Liquid-transport pipe-line 63.
The top of the push rod 8 be provided with hemisphere 83 for and bearing plate 21 contact when reduce rub.
The bottom of the push rod 8 is provided with screw thread 84, and the push rod 8 is connected through a screw thread mode and is installed on the base plate 82
On.
Gap 85 is provided with the push rod 8 can be clamped herein for rotating the push rod 8 with spanner.
The piston cylinder 7 is installed with the inwall of the staving 1 by mounting bracket 73, and the end of the piston cylinder 7 is provided with
End plate 82.
It is provided with outside the first reservoir 51 outside first postive stop baffle 52, the second reservoir 61 and is provided with second postive stop baffle
62。
The bung 2 is connected by hinge 12 with the staving 1, and positive stop 13, the bucket are provided with the staving 1
Briquetting 22 is provided with lid 2, the briquetting 22 is pressed on the positive stop 13 and the upper surface of the bung 2 and the staving
1 top surface is flush or below the top surface.
The present apparatus sets first pedal 3 and second pedal 4, and only steps on two pedals simultaneously, can open dustbin
Open.And in order to avoid opening dustbin with hand, the upper surface of the bung 2 of the present apparatus and the top surface of staving 1 are flush or below this
There is no handle on top surface, and bung 2, therefore, it is only the dustbin for being hard to turn on the present apparatus with hand.Two of the present apparatus
There is a certain distance, because the pin of child is smaller between pedal, it is impossible to while two pedals are stepped on, this makes it possible to avoid
Opened by child.And the pin being grown up is than larger, it becomes possible to while stepping on two pieces of pedals, can so open the present apparatus.This
Device is so set, it becomes possible to prevent child to be opened accidentally dustbin.Also, the handle that the present apparatus is not turned on bung 2
Hand, so further avoid child from opening the present apparatus, protects the safety of child.
As shown in Figure 4, it is now that first pedal 3 is operated, now the liquid in first reservoir 51 is entered into piston cylinder 7
Hydraulic cavities 71 in, so as to promote first piston rod 81 to move up.Finally cause to be moved on push rod 8.But only first reservoir 51
The volume of interior liquid, it is impossible to so that push rod 8 withstands bearing plate 21 and moves up, it is impossible to so that bung 2 overturns, namely cannot open
Open dustbin.
As shown in Figure 5, it is now first pedal 3 and second pedal 4 while being operated.After second pedal 4 is operated, second storage
Liquid in liquid capsule 61 is entered into second transfusion cylinder 6, so that promote moved on second piston rod 9, so that being moved on storing bin 14.
After being moved on second piston rod 9, liquid-transport pipe-line 63 will be got through, the liquid in such second reservoir 61 can also enter into hydraulic cavities
In 71, coordinate first reservoir 51 together.It is sufficient that liquid so in hydraulic cavities 71, it becomes possible to so that push rod 8 withstands pressure-bearing
Plate 21 is moved up, so that bung 2 overturns, opens dustbin.At the same time, storing bin 14 also leans out and, convenient use
Person is exactly thrown away in storing bin 14 rubbish.
The present apparatus opens the bung 2 of dustbin, does not quickly complete, because liquid flowing is not to complete moment,
The present apparatus is lentamente to open bung 2.So, the air flow on periphery is just shallower, would not be by the foul smell in storing bin 14
Take out of.
After using completion, then pin is no longer stepped down on first pedal 3 and second pedal 4, now, back-moving spring 86 elastic force with
And under the Action of Gravity Field of bung 2, push rod 8 sets back.First piston rod 81 is moved down, and liquid in hydraulic cavities 71 is transmitted back into first liquid storage
In capsule 51 and in second reservoir 61.Also, under gravity, storing bin 14 is moved down, second piston rod 9 is promoted to move down,
So as to be transmitted back in second reservoir 61 in second transfusion cylinder 6.After second piston rod 9 is moved down, liquid-transport pipe-line 63 will be sealed, this
Liquid would not enter second reservoir 61 in sample hydraulic cavities 71, only enter in first reservoir 51.Then under second piston rod 9 continues
Move, remaining liquid is transmitted back in second reservoir 61.
Protection scope of the present invention includes but is not limited to embodiment of above, and protection scope of the present invention is with claims
Be defined, any replacement being readily apparent that to those skilled in the art that this technology is made, deformation, improvement each fall within it is of the invention
Protection domain.
Simple structure low cost of the present invention, it is easily manufactured to be easy to promote on a large scale, but it is prevented from child grows up
People can easily open again.
Claims (7)
1. a kind of dustbin for avoiding being opened accidentally, including staving（1）Be arranged at the staving（1）Internal storing bin（14）,
The staving（1）Upper rotation is provided with bung（2）, the staving（1）On be provided with two pedals, respectively first pedal（3）
With second pedal（4）, it is characterised in that：The first pedal（3）With the second pedal（4）Pass through first connecting rod respectively（31）With second connecting rod
（41）It is respectively connected with first tumbler（32）With second tumbler（42）, the first tumbler（32）With second tumbler（42）Interior setting
There is torsion spring for resetting, the first pedal（3）With second pedal（4）Lower section is provided with and is respectively arranged with first reservoir（51）Stored up with second
Liquid capsule（61）, the first reservoir（51）It is connected with first transfusion cylinder（5）, the first transfusion cylinder（5）With vertical piston cylinder（7）Phase
Even, the piston cylinder（7）Inside it is movably set with first piston rod（81）, the first piston rod（81）End is connected with base plate（82）,
The base plate（82）On be connected with push rod（8）, the bung（2）Bottom and positioned at the push rod（8）Position directly above sets
It is equipped with bearing plate（21）, the staving（1）Inside it is provided with guide plate（11）, the push rod（8）May pass through the guide plate（11）
By the bearing plate（21）Jack-up is so that bung（2）Upset, the guide plate（11）With the base plate（82）Between set
There is back-moving spring（86）, the second reservoir（61）It is connected with second transfusion cylinder（6）, the second transfusion cylinder（6）Inside it is movably set with
Second piston rod（9）, the second piston rod（9）End is provided with top board（91）, the top board（91）It is arranged at the storing bin
（14）Lower section and the storing bin can be promoted（14）Upper shifting, the second transfusion cylinder（6）With vertical piston cylinder（7）It is connected, institute
State second piston rod（9）End portion covers the second transfusion cylinder（6）And piston cylinder（7）Connected liquid-transport pipe-line（63）.
2. a kind of dustbin for avoiding being opened accidentally according to claim 1, it is characterised in that：The push rod（8）Top
It is provided with hemisphere（83）For and bearing plate（21）Friction is reduced during contact.
3. a kind of dustbin for avoiding being opened accidentally according to claim 1, it is characterised in that：The push rod（8）Bottom
It is provided with screw thread（84）, the push rod（8）The mode of being connected through a screw thread is installed on the base plate（82）On.
4. a kind of dustbin for avoiding being opened accidentally according to claim 3, it is characterised in that：The push rod（8）On set
It is equipped with gap（85）Can to clamp be used for herein with spanner and rotate the push rod（8）.
5. a kind of dustbin for avoiding being opened accidentally according to claim 1, it is characterised in that：The piston cylinder（7）It is logical
Cross mounting bracket（73）Install and the staving（1）On inwall, the piston cylinder（7）End is provided with end plate（72）.
6. a kind of dustbin for avoiding being opened accidentally according to claim 1, it is characterised in that：The first reservoir（51）
It is provided with first postive stop baffle outward（52）, the second reservoir（61）It is provided with second postive stop baffle outward（62）.
7. a kind of dustbin for avoiding being opened accidentally according to claim 1, it is characterised in that：The bung（2）Pass through
Hinge（12）With the staving（1）It is connected, the staving（1）On be provided with positive stop（13）, the bung（2）On be provided with
Briquetting（22）, the briquetting（22）It is pressed in the positive stop（13）Upper and described bung（2）Upper surface and the staving（1）
Top surface flush or below the top surface.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611187255.9A CN106742969B (en) | 2016-12-21 | 2016-12-21 | A kind of dustbin for avoiding being opened accidentally |
| CN201910365633.5A CN110203583A (en) | 2016-12-21 | 2016-12-21 | A kind of dustbin |
| CN201910365634.XA CN110203584A (en) | 2016-12-21 | 2016-12-21 | Dustbin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611187255.9A CN106742969B (en) | 2016-12-21 | 2016-12-21 | A kind of dustbin for avoiding being opened accidentally |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910365634.XA Division CN110203584A (en) | 2016-12-21 | 2016-12-21 | Dustbin |
| CN201910365633.5A Division CN110203583A (en) | 2016-12-21 | 2016-12-21 | A kind of dustbin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106742969A true CN106742969A (en) | 2017-05-31 |
| CN106742969B CN106742969B (en) | 2019-06-25 |
Family
ID=58896350
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910365634.XA Withdrawn CN110203584A (en) | 2016-12-21 | 2016-12-21 | Dustbin |
| CN201611187255.9A Active CN106742969B (en) | 2016-12-21 | 2016-12-21 | A kind of dustbin for avoiding being opened accidentally |
| CN201910365633.5A Withdrawn CN110203583A (en) | 2016-12-21 | 2016-12-21 | A kind of dustbin |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910365634.XA Withdrawn CN110203584A (en) | 2016-12-21 | 2016-12-21 | Dustbin |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910365633.5A Withdrawn CN110203583A (en) | 2016-12-21 | 2016-12-21 | A kind of dustbin |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN110203584A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112520274A (en) * | 2020-11-29 | 2021-03-19 | 武汉瑞锦丰路桥设备股份有限公司 | Garbage can capable of preventing opening by child |
| CN112693779A (en) * | 2018-11-30 | 2021-04-23 | 王涵 | Garbage can capable of preventing child from mistakenly opening garbage can |
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|---|---|---|---|---|
| DE4132958A1 (en) * | 1990-11-05 | 1992-05-14 | Johannes Loebbert | Foot pedal operated refuse bin - has insert inside outer housing, with connecting bar between flap lid and pedal consisting of two armed lever |
| US20020092853A1 (en) * | 2001-01-17 | 2002-07-18 | Tin-Chou Wang | Oil hydraulic device for a dustbin lid |
| CN202219943U (en) * | 2011-08-10 | 2012-05-16 | 昆明理工大学 | Rubbish bin |
| CN202400510U (en) * | 2012-01-13 | 2012-08-29 | 曾永标 | Pail slow-descending toilet pail |
| CN202429587U (en) * | 2011-12-21 | 2012-09-12 | 台山市广安霖机电制造有限公司 | Garbage bin |
| CN202642607U (en) * | 2012-07-18 | 2013-01-02 | 曾文贵 | Can cover gradually-falling type garbage can |
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| CN204937828U (en) * | 2015-06-22 | 2016-01-06 | 郑州航空工业管理学院 | A kind of sewage disposer |
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| GB2388767B (en) * | 2002-05-21 | 2005-06-08 | David Ohayon | Refuse bins |
| CN200971254Y (en) * | 2006-11-28 | 2007-11-07 | 郑学科 | Dustbin |
| CN201102764Y (en) * | 2007-10-13 | 2008-08-20 | 江门市辉捷塑胶五金制造有限公司 | Pedal type refuse can |
| CN102644312A (en) * | 2012-04-17 | 2012-08-22 | 胡丁友 | Automatic flush toilet |
| US20140054293A1 (en) * | 2012-08-21 | 2014-02-27 | Kerry L. Goodfield | Feminine hygiene waste and storage container |
| CN203946485U (en) * | 2014-07-28 | 2014-11-19 | 曾文贵 | A kind of sanitary bucket |
| CN105804195A (en) * | 2014-12-29 | 2016-07-27 | 柳州市京阳节能科技研发有限公司 | Automatic efficiently-water-saving and environment-friendly closestool |
| CN205574767U (en) * | 2016-03-10 | 2016-09-14 | 刘克浪 | Can prevent environment -friendly trash can that gaseous pollutants flies away |
| CN106005840B (en) * | 2016-07-04 | 2018-06-19 | 陈政 | Foot-operated interior bagging refuse receptacle |
-
2016
- 2016-12-21 CN CN201910365634.XA patent/CN110203584A/en not_active Withdrawn
- 2016-12-21 CN CN201611187255.9A patent/CN106742969B/en active Active
- 2016-12-21 CN CN201910365633.5A patent/CN110203583A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4132958A1 (en) * | 1990-11-05 | 1992-05-14 | Johannes Loebbert | Foot pedal operated refuse bin - has insert inside outer housing, with connecting bar between flap lid and pedal consisting of two armed lever |
| US20020092853A1 (en) * | 2001-01-17 | 2002-07-18 | Tin-Chou Wang | Oil hydraulic device for a dustbin lid |
| CN202219943U (en) * | 2011-08-10 | 2012-05-16 | 昆明理工大学 | Rubbish bin |
| CN202429587U (en) * | 2011-12-21 | 2012-09-12 | 台山市广安霖机电制造有限公司 | Garbage bin |
| CN202400510U (en) * | 2012-01-13 | 2012-08-29 | 曾永标 | Pail slow-descending toilet pail |
| CN202642607U (en) * | 2012-07-18 | 2013-01-02 | 曾文贵 | Can cover gradually-falling type garbage can |
| CN202897249U (en) * | 2012-10-25 | 2013-04-24 | 江门市辉捷塑胶五金制造有限公司 | Trash can with air pressure assistance slow descent can cover |
| CN204937828U (en) * | 2015-06-22 | 2016-01-06 | 郑州航空工业管理学院 | A kind of sewage disposer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112693779A (en) * | 2018-11-30 | 2021-04-23 | 王涵 | Garbage can capable of preventing child from mistakenly opening garbage can |
| CN112693779B (en) * | 2018-11-30 | 2022-12-23 | 江西艾酷玩具有限公司 | Garbage can capable of preventing child from mistakenly opening garbage can |
| CN112520274A (en) * | 2020-11-29 | 2021-03-19 | 武汉瑞锦丰路桥设备股份有限公司 | Garbage can capable of preventing opening by child |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110203584A (en) | 2019-09-06 |
| CN110203583A (en) | 2019-09-06 |
| CN106742969B (en) | 2019-06-25 |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20190528 Address after: 325000 Room 608 of Qiaoertou Rose Building, Nanpu Street, Lucheng District, Wenzhou City, Zhejiang Province Applicant after: Chen Guolin Address before: 315020 No. 105 Renmin Road, Majie Street, Jiangbei District, Ningbo City, Zhejiang Province (2-28) Applicant before: Ningbo Jiangbei cave Industrial Design Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 277599, 1501, Xin Xin Xi Road, Tengzhou, Shandong, Zaozhuang Patentee after: Chen Guolin Address before: 325000 Room 608 of Qiaoertou Rose Building, Nanpu Street, Lucheng District, Wenzhou City, Zhejiang Province Patentee before: Chen Guolin |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201230 Address after: 1501 Beixin West Road, Tengzhou City, Zaozhuang City, Shandong Province Patentee after: TENGZHOU INSTITUTE OF PRODUCT QUALITY SUPERVISION AND INSPECTION Address before: 1501 Beixin West Road, Tengzhou City, Zaozhuang City, Shandong Province Patentee before: Chen Guolin |