CN109339170A - A kind of Manual double-layer downspout device and sink - Google Patents
A kind of Manual double-layer downspout device and sink Download PDFInfo
- Publication number
- CN109339170A CN109339170A CN201811271167.6A CN201811271167A CN109339170A CN 109339170 A CN109339170 A CN 109339170A CN 201811271167 A CN201811271167 A CN 201811271167A CN 109339170 A CN109339170 A CN 109339170A
- Authority
- CN
- China
- Prior art keywords
- slot
- shell
- downspout device
- manual double
- lifting assembly
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/22—Outlet devices mounted in basins, baths, or sinks
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/26—Object-catching inserts or similar devices for waste pipes or outlets
- E03C1/264—Separate sieves or similar object-catching inserts
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
The present invention provides a kind of Manual double-layer downspout devices, include: shell, offer a through slot along the thickness direction of shell, and the filter structure there are two mutually nested connection is set in through slot, one of filter structure is branch lid, another filter structure is filter basket；Lifting assembly, one end sequentially pass through filter basket and branch lid, and the other end is matched with through slot, move up and down the on-off changed between through slot and drainpipe by lifting assembly, wherein drainpipe is connected to the lower end of shell.A kind of Manual double-layer downspout device provided by the invention, two mutually nested filter structures are set in shell, with the lifting assembly with filter structure sliding cooperation, by moving up and down for lifting assembly, realizes water storage and drain operation, solve the problems, such as additionally to increase spare and accessory parts in water storage or drain operation, so that the structure of downspout device becomes more simple, compact, in addition, solving the blockage problem of drainpipe by double-layer filter structure.
Description
Technical field
The invention belongs to sink accessory technical fields, are related to a kind of downspout device, especially a kind of Manual double-layer downspout device and
Sink.
Background technique
The water storage basin bottom part of kitchen basin is equipped with the drainage hole for draining at present, is equipped with draining in drainage hole bottom
Device (downspout device) simultaneously connects drainpipe, the waste water in pond can be introduced sewer by downspout device and drainpipe.In order to
The impurity of the bulky grain when sluicing is avoided to enter the displacement for the water that sewer causes in line clogging, and control retaining basin,
Filter basket and sealing part are housed on downspout device.When filter basket is lifted, the water in pond, which can be flowed into relatively rapidly, to be lauched
Road, when filter basket is subdued, the water in pond may not flow into sewer.Filter basket move up and down adjustable retaining basin to
The water flow size of sewer circulation.The filter basket of downspout device is usually one, is outwelled in filter basket when lifting filter basket preparation
When rubbish, the part rubbish in filter basket can slide into drainpipe from periphery, it is possible to make to drain blockage and cause inconvenience.
Chinese patent (CN 201598687U) discloses a kind of waterfall device of water tank, comprising: bowl, the first filter basket, its
Including handle；The filter basket body that centre has through-hole, surface to have filter hole；The anchorage bar being connect with handle；It covers in the fastening
Metal gasket and waterstop sealing ring on bar；Second filter basket, it include drop handle；There is the filter basket body of filter hole on surface；Institute
Stating downspout device further includes the separable movable partition layer in bowl, and the bottom of the movable partition layer offered water
Hole, and the intermediate set bucket being connected with anchorage bar interference, first, second filter basket are packed into the bowl, institute
It states the first filter basket to be located above the movable partition layer, second filter basket is located at below the movable partition layer.
Although above-mentioned provide a kind of waterfall device of water tank, solve the problems, such as draining blockage, sink described above
Downspout device, when carrying out drain operation, it is desired nonetheless to open stop cover, be drained, when carrying out water storage operation, it is desired nonetheless to
Stop cover is subjected to water storage in filter basket.
In conclusion needing to design one kind is able to solve drainpipe blockage problem, and not in water storage and drain operation
Generate the downspout device of extra spare and accessory parts.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, proposing one kind and being able to solve draining blockage
Problem, and in water storage and the downspout device for not generating extra spare and accessory parts when drain operation.
Object of the invention can be realized by the following technical scheme: a kind of Manual double-layer downspout device, comprising: shell, edge
The thickness direction of shell offers a through slot, and the filter structure there are two mutually nested connection is arranged in through slot, wherein
One filter structure is branch lid, another filter structure is filter basket；Lifting assembly, one end sequentially pass through filter basket and Zhi Gai
Body, the other end are matched with through slot, move up and down the on-off changed between through slot and drainpipe by lifting assembly, wherein
Drainpipe is connected to the lower end of shell.
In a kind of above-mentioned Manual double-layer downspout device, lifting assembly by its own gravity realize through slot and drainpipe it
Between blocking connection.
In a kind of above-mentioned Manual double-layer downspout device, one end of lifting assembly is provided with one and is used cooperatively with through slot
Water shutoff portion, the other end of lifting assembly are provided with the clamping portion being used cooperatively with branch lid.
In a kind of above-mentioned Manual double-layer downspout device, lifting assembly includes a pull rod, and clamping portion and water shutoff part
Not Wei Yu pull rod both ends, wherein clamping portion includes the bolt for extending transversely through pull rod, or is symmetrically arranged on pull rod
Two quarter butts.
In a kind of above-mentioned Manual double-layer downspout device, the inside lower end of shell is provided with a stepped part, wherein envelope
Water portion is mutually clamped with the stepped part, and water shutoff portion, filter basket are connected on pull rod by threaded fastener.
In a kind of above-mentioned Manual double-layer downspout device, water shutoff portion from top to bottom includes the stainless of stepped structure setting
The plastic mattress of steel pad, the silicagel pad of stepped structure setting and stepped structure setting, wherein stainless steel pad, silica gel
Pad and the mutually nested connection of plastic mattress, and stainless steel pad and the stepped part of shell are mutually clamped.
Plane and branch lid open end institute in a kind of above-mentioned Manual double-layer downspout device, where the open end of filter basket
Plane between there are differences in height, wherein the distance of the difference in height is greater than the stroke that moves up and down of pull rod.
In a kind of above-mentioned Manual double-layer downspout device, filter basket is in rotational-like structure setting, and opening along filter basket
Mouthful end extends outward to form the first flange, branch lid include one be in rotational-like structure setting cover board, and along the opening of cover board
End extends outward to form the second flange, wherein the second flange is mutually clamped with the stepped part on the inside of shell upper end, and under the second flange
Level height where side is higher than the level height where the first flange upper side.
In a kind of above-mentioned Manual double-layer downspout device, the diameter of filter basket inner sidewall is greater than the diameter of cover board lateral wall.
In a kind of above-mentioned Manual double-layer downspout device, branch lid further includes fixed screw, on cover board, and is passed through
Nut locks fixed screw on the cover board, wherein along the axis direction of cover board, sequentially passes through fixed screw, cover board and spiral shell
Sliding channel and the pull rod of cap are used cooperatively.
The present invention also provides a kind of sinks, comprising: groove body, recessed formation sink, wherein downspout device described above can
Disassembly is installed on the slot bottom of sink.
In a kind of above-mentioned sink, it is provided with external screw thread on the downspout device shell of the one end that is connected with sink slot bottom, and
The connection between downspout device and sink is realized by washer and fastening nut.
Compared with prior art, a kind of Manual double-layer downspout device provided by the invention, setting two is mutually embedding in shell
The filter structure of set, and the lifting assembly with filter structure sliding cooperation, by moving up and down for lifting assembly, realize water storage and
Drain operation solves the problems, such as additionally to increase spare and accessory parts in water storage or drain operation, so that the structure of downspout device becomes
More simple, compact, in addition, solving the blockage problem of drainpipe by double-layer filter structure, what raising downspout device used can
By property.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of Manual double-layer downspout device of the present invention.
Fig. 2 is a kind of explosive view of Manual double-layer downspout device of the present invention.
Fig. 3 is a kind of structural schematic diagram of the Manual double-layer downspout device of the present invention in water storage state.
Fig. 4 is a kind of structural schematic diagram of the Manual double-layer downspout device of the present invention in hull-borne.
Fig. 5 is the explosive view of branch lid in a preferred embodiment of the present invention.
Fig. 6 is the explosive view of lifting assembly in a preferred embodiment of the present invention.
In figure, 100, shell；110, through slot；200, branch lid；210, cover board；211, the second flange；220, fixed screw；
230, nut；300, filter basket；310, the first flange；400, lifting assembly；410, pull rod；420, bolt；430, stainless steel pad；
440, silicagel pad；450, plastic mattress.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figures 1 to 6, a kind of Manual double-layer downspout device provided by the invention, comprising: shell 100, along shell 100
Thickness direction offer a through slot 110, and in through slot 110 be arranged there are two mutually nested connection filter structure,
In filter structure be branch lid 200, another filter structure is filter basket 300；Lifting assembly 400, one end sequentially passes through
Filter basket 300 and branch lid 200, the other end are matched with through slot 110, move up and down change through slot by lifting assembly 400
On-off between 110 and drainpipe, wherein drainpipe is connected to the lower end of shell 100.
Two mutually nested filter structures are arranged in a kind of Manual double-layer downspout device provided by the invention in shell 100,
Water storage and draining behaviour are realized by moving up and down for lifting assembly 400 with the lifting assembly 400 with filter structure sliding cooperation
Make, solves the problems, such as additionally to increase spare and accessory parts in water storage or drain operation, so that the structure of downspout device becomes more simple
It is single, compact, in addition, solving the blockage problem of drainpipe by double-layer filter structure, improve the reliability that downspout device uses.
Preferably, as shown in Figures 1 to 6, lifting assembly 400 by its own gravity realize through slot 110 and drainpipe it
Between blocking connection.There are two types of the downspout devices generally installed on sink, and a kind of opening in shell 100 is removably connected with
One water sealing structure realizes water storage operation when water sealing structure is installed on the opening of shell 100, when water sealing structure takes shrinking away from theshell
When the opening of body 100, drain operation is realized；Second, installing an elastic button in shell 100, pass through elastic button
It pushes and bounces, realize water storage and drain operation, but the equal Shortcomings of above two mode point out that the structure of the first is set
Meter can have more extra spare and accessory parts (water sealing structure) in water storage draining, inconvenient, and be easy to lose；Second of knot
Structure design, after repeatedly using, the elastomeric element in elastic button can generate fatigue, follow the string alternatively, cannot achieve
The sealing of sink slot bottom bottom.And the lifting assembly 400 in the present embodiment, it is that water storage operation is realized by the gravity of its own,
Without increasing additional spare and accessory parts, and (because using frequently sealing will not occur for built-in nonelastic component to be not thorough or lose
Elasticity), to improve the convenience and reliability used.
Preferably, as shown in Figures 1 to 6, one end of lifting assembly 400 is provided with one and is used cooperatively with through slot 110
Water shutoff portion, the other end of lifting assembly 400 are provided with the clamping portion being used cooperatively with branch lid 200, as progress water storage behaviour
When making, lifting assembly 400 sinks according to self gravity, so that water shutoff portion blocks the channel between through slot 110 and drainpipe, at this time
Clamping portion on lifting assembly 400 is protruded into branch lid 200；When carrying out drain operation, lifting assembly 400 is above mentioned, and connection is logical
Channel between slot 110 and drainpipe at this point, branch lid 200 is stretched out in clamping portion, and is held on branch lid 200, prevents from going up and down
Component 400 falls again under the impact of water flow and blocks the channel between through slot 110 and drainpipe, causes to drain to improve
Smoothness.
It is further preferred that as shown in Figures 1 to 6, lifting assembly 400 includes a pull rod 410, and clamping portion and water shutoff
Portion is located at the both ends of pull rod 410, wherein clamping portion includes one and extends transversely through the bolt 420 of pull rod 410, or is drawing
Two quarter butts are symmetrically arranged on bar 410.When carrying out water storage operation, bolt 420 or the equal retraction branch lid 200 of two quarter butts
It is interior, when carrying out drain operation, it is held on branch lid 200, is made by the free end at the both ends of bolt 420 or two quarter butts
The water shutoff portion obtained on pull rod 410 is in vacant state, so that the channel between through slot 110 and drainpipe be connected.In addition, carry out
When drain operation, water body has certain impact force for 410 end of pull rod, and due to pull rod 410 at this time by bolt 420 or
Person's quarter butt is held on branch lid 200, to improve the reliability of draining.
It is further preferred that as shown in Figures 1 to 6, being provided with a stepped part along the inside lower end of shell 100, wherein
Water shutoff portion is mutually clamped with the stepped part, and water shutoff portion, filter basket 300 are connected on pull rod 410 by threaded fastener, thus
Realize between water shutoff portion and stepped part it is quick connect and separate, and realize pull rod 410, water shutoff portion and filter basket 300
It synchronizes and moves up and down.It is further preferred that water shutoff portion from top to bottom includes the stainless steel pad 430 of stepped structure setting, is in
The silicagel pad 440 of step structure setting and the plastic mattress 450 of stepped structure setting, wherein stainless steel pad 430, silicon
Rubber mat 440 and the mutually nested connection of plastic mattress 450, and stainless steel pad 430 and the stepped part of shell 100 are mutually clamped.In this reality
It applies in example, stainless steel pad 430, silicagel pad 440 and plastic mattress 450 is respectively provided with stepped structure, on the one hand improved stainless
On the other hand the intensity of steel pad 430 improves the leakproofness of downspout device.
Preferably, as shown in Figures 1 to 6, the plane where the open end of filter basket 300 and 200 open end institute of branch lid
Plane between there are differences in height, wherein the distance of the difference in height is greater than the stroke that moves up and down of pull rod 410.In this implementation
In example, why the stroke that pull rod 410 moves up and down is set smaller than the difference in height between filter basket 300 and branch lid 200,
It is to during pull rod 410 moves up, not will drive synchronizing for branch lid 200 and move up, to keep away when carrying out drain operation
Exempt from the macromolecular particles such as the swill in water through channel between 100 inner wall of branch lid 200 and shell or filter basket 300 with
Channel between the inner wall of shell 100 enters in drainpipe and blocks drainpipe, to improve the reliability that downspout device uses.
It is further preferred that as shown in Figures 1 to 6, filter basket 300 is in rotational-like structure setting, and along filter basket 300
Open end extend outward to form the first flange 310, branch lid 200 include one be in rotational-like structure setting cover board 210, and
The second flange 211 is extended outward to form along the open end of cover board 210, wherein on the inside of the second flange 211 and 100 upper end of shell
Stepped part is mutually clamped, and the level height where 211 downside of the second flange is higher than the level where 310 upper side of the first flange
Highly.It is further preferred that the diameter of 300 inner sidewall of filter basket is greater than the diameter of 210 lateral wall of cover board, so that filter basket 300
Cover board 210 is jacked up in 410 uphill process of pull rod, avoiding interfering with cover board 210.
Preferably, as shown in Figures 1 to 6, branch lid 200 further includes fixed screw 220, on cover board 210, and is led to
It crosses nut 230 fixed screw 220 is locked on cover board 210, wherein along the axis direction of cover board 210, sequentially pass through fixed spiral shell
Silk 220, the sliding channel of cover board 210 and nut 230 and pull rod 410 are used cooperatively, when carrying out water storage operation, pull rod 410
On bolt 420 or quarter butt retraction fixed screw 220 in；When carrying out drain operation, bolt 420 on pull rod 410 or
Quarter butt is held on the upper surface of fixed screw 220, that is, the form and hull-borne of bolt 420 or quarter butt under water storage state
Under bolt 420 and the form of quarter butt have rotated 90 ° just.
The present invention also provides a kind of sink, including, groove body, recessed formation sink, wherein downspout device described above
It is removably mounted on the slot bottom of sink, to realize the sealing and draining of sink slot bottom.
It is further preferred that as shown in Figures 1 to 6, being arranged on the downspout device shell 100 of the one end that is connected with sink slot bottom
There is external screw thread, and realizes the connection between downspout device and sink by washer and fastening nut.In the present embodiment, the screw thread
For injection molding, and it is nested with shell 100 (stainless steel material is made) by side spot welding or glue the modes such as to bond
Connection forms integral structure setting.In the present embodiment, the screw thread is and indirect in stainless steel material by injection molding
Shell 100 on tapping, and compared with the generally plastic material of script shell 100, while improving downspout device intensity, no
Change its connectivity robustness.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of Manual double-layer downspout device characterized by comprising shell offers a through slot along the thickness direction of shell,
And the filter structure there are two mutually nested connection is set in through slot, one of filter structure is branch lid, another mistake
Filter structure is filter basket；Lifting assembly, one end sequentially pass through filter basket and branch lid, and the other end is matched with through slot, pass through liter
That comes down to a lower group part moves up and down the on-off changed between through slot and drainpipe, wherein drainpipe is connected to the lower end of shell.
2. a kind of Manual double-layer downspout device according to claim 1, which is characterized in that lifting assembly passes through its own gravity
Realize that the blocking between through slot and drainpipe connects.
3. a kind of Manual double-layer downspout device according to claim 1 or 2, which is characterized in that one end of lifting assembly is arranged
There is the water shutoff portion being used cooperatively with through slot, the other end of lifting assembly is provided with the clamping being used cooperatively with branch lid
Portion.
4. a kind of Manual double-layer downspout device according to claim 3, which is characterized in that lifting assembly includes a pull rod,
And clamping portion and water shutoff portion are located at the both ends of pull rod, wherein clamping portion includes the bolt for extending transversely through pull rod, or
Two quarter butts are symmetrically arranged on pull rod.
5. a kind of Manual double-layer downspout device according to claim 4, which is characterized in that the inside lower end along shell is provided with
One stepped part, wherein water shutoff portion is mutually clamped with the stepped part, and is connected to water shutoff portion, filter basket by threaded fastener
On pull rod.
6. a kind of Manual double-layer downspout device according to claim 3, which is characterized in that water shutoff portion from top to bottom includes in rank
Stainless steel pad, the silicagel pad of stepped structure setting and the plastic mattress of stepped structure setting of ladder configuration setting,
Wherein, stainless steel pad, silicagel pad and the mutually nested connection of plastic mattress, and stainless steel pad and the stepped part of shell are mutually clamped.
7. a kind of Manual double-layer downspout device according to claim 1, which is characterized in that flat where the open end of filter basket
There are differences in height between plane where face and branch lid open end, wherein the distance of the difference in height is moved up and down greater than pull rod
Stroke.
8. a kind of Manual double-layer downspout device according to claim 7, which is characterized in that filter basket is set in rotational-like structure
Set, and extend outward to form the first flange along the open end of filter basket, branch lid include one be in rotational-like structure setting lid
Plate, and the second flange is extended outward to form along the open end of cover board, wherein the second flange and the stepped part phase on the inside of shell upper end
Clamping, and the level height where the second flange downside is higher than the level height where the first flange upper side.
9. a kind of Manual double-layer downspout device according to claim 8, which is characterized in that branch lid further includes fixed screw,
Fixed screw is locked on the cover board on cover board, and through nut, wherein along the axis direction of cover board, sequentially pass through
The sliding channel of fixed screw, cover board and nut and pull rod are used cooperatively.
10. a kind of sink, comprising: groove body, recessed formation sink, wherein any downspout device of claim 1 to 9 can
Disassembly is installed on the slot bottom of sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271167.6A CN109339170A (en) | 2018-10-29 | 2018-10-29 | A kind of Manual double-layer downspout device and sink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271167.6A CN109339170A (en) | 2018-10-29 | 2018-10-29 | A kind of Manual double-layer downspout device and sink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109339170A true CN109339170A (en) | 2019-02-15 |
Family
ID=65312426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811271167.6A Pending CN109339170A (en) | 2018-10-29 | 2018-10-29 | A kind of Manual double-layer downspout device and sink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109339170A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2551694Y (en) * | 2002-04-12 | 2003-05-21 | 徐剑光 | Draining filter |
| CN2603123Y (en) * | 2003-03-10 | 2004-02-11 | 梁炳祥 | Water drainage switch for basin |
| CN2729168Y (en) * | 2004-08-31 | 2005-09-28 | 冯伯安 | Outlet device of sink |
| KR20110068744A (en) * | 2009-12-14 | 2011-06-22 | (주)코트랩 | Open system with sink |
| KR200462565Y1 (en) * | 2011-03-15 | 2012-09-14 | 김원종 | A drainage unit of sink bowl |
| CN203664093U (en) * | 2013-11-27 | 2014-06-25 | 诸暨市成顺机械有限公司 | Spray gun adjusting plate |
| CN209653054U (en) * | 2018-10-29 | 2019-11-19 | 浙江欧琳生活健康科技有限公司 | A kind of Manual double-layer downspout device and sink |
-
2018
- 2018-10-29 CN CN201811271167.6A patent/CN109339170A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2551694Y (en) * | 2002-04-12 | 2003-05-21 | 徐剑光 | Draining filter |
| CN2603123Y (en) * | 2003-03-10 | 2004-02-11 | 梁炳祥 | Water drainage switch for basin |
| CN2729168Y (en) * | 2004-08-31 | 2005-09-28 | 冯伯安 | Outlet device of sink |
| KR20110068744A (en) * | 2009-12-14 | 2011-06-22 | (주)코트랩 | Open system with sink |
| KR200462565Y1 (en) * | 2011-03-15 | 2012-09-14 | 김원종 | A drainage unit of sink bowl |
| CN203664093U (en) * | 2013-11-27 | 2014-06-25 | 诸暨市成顺机械有限公司 | Spray gun adjusting plate |
| CN209653054U (en) * | 2018-10-29 | 2019-11-19 | 浙江欧琳生活健康科技有限公司 | A kind of Manual double-layer downspout device and sink |
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Effective date of registration: 20210622 Address after: 315104 Xianghe East Road, Yinzhou District Yinzhou investment and business center, Ningbo, Zhejiang 128 Applicant after: NINGBO OULIN INDUSTRIAL Co.,Ltd. Address before: 315104 No. 128 Xianghe East Road, Yinzhou District, Ningbo, Zhejiang. Applicant before: ZHEJIANG OULIN HEALTHY LIFE TECHNOLOGY Co.,Ltd. |
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Address after: 315104, Zhejiang, Yinzhou District, Ningbo investment center, harmony East Road, No. 128 Applicant after: Ningbo OULIN Technology Co.,Ltd. Address before: 315104 Xianghe East Road, Yinzhou District Yinzhou investment and business center, Ningbo, Zhejiang 128 Applicant before: NINGBO OULIN INDUSTRIAL Co.,Ltd. |