CN106671030A - Multifunctional electric tool - Google Patents
Multifunctional electric tool Download PDFInfo
- Publication number
- CN106671030A CN106671030A CN201611236114.1A CN201611236114A CN106671030A CN 106671030 A CN106671030 A CN 106671030A CN 201611236114 A CN201611236114 A CN 201611236114A CN 106671030 A CN106671030 A CN 106671030A
- Authority
- CN
- China
- Prior art keywords
- mounting head
- output shaft
- carrier bar
- chain saw
- electric tools
- 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
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F1/00—Combination or multi-purpose hand tools
- B25F1/02—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
The invention discloses a multifunctional electric tool, and belongs to the field of electric tools. The multifunctional electric tool comprises a machine body main body and a mounting head which is arranged at the front end of the machine body main body, wherein an output shaft extends out from the side part of the mounting head; the mounting head is detachably connected with a replaceable processing component; the processing component comprises an angle grinder component or a chain saw component; two connecting parts are arranged on the mounting head; and the angle grinder component and the chain saw component are separately mounted on the corresponding connecting parts in a matched mode, and are in transmission connection with the output shaft. The multifunctional electric tool has the advantage of serving several purposes, being capable of meeting angle grinder cutting and meeting chain saw cutting, increasing a usage rate of the machine body, and savig cost.
Description
【Technical field】
The present invention relates to a kind of multi-functional electric tools, belong to field of power tools.
【Background technology】
Existing electric tool species on the market is various, and function is also varied, but the driving of many electric tools
System is all general, and the working machine head simply installed is otherwise varied, such as angle grinder and electric chain saw, is all in fact cutting class
Instrument, the operation principle of angle mill is to make reciprocating-rotating movement by Motor drive saw blade, so as to cut to workpiece, but is being cut
When cutting wood, energy depth of cut is less.The operation principle of chain saw is to drive drive mechanism by power set, by drive mechanism
Saw chain is driven to be cut.Can cutting depth it is deeper, be generally used for performing and prune work or forest work, such as trees are cut
Cut down, prune and block, because the mode cut is different, user needs band when cutting work is carried out to different trees
Two electric tools, so more inconvenience.
【The content of the invention】
The technical problem to be solved is to overcome the deficiencies in the prior art and provide a kind of multifunctional motor-driven work
Tool, a tractor serves several purposes can meet angle mill cutting, it is also possible to meet chain saw cut, improve the utilization rate of body, cost-effective.
Above-mentioned technical problem is solved, the present invention is adopted the following technical scheme that：
A kind of multi-functional electric tools, including fuselage main body and the mounting head for being located at fuselage main body front end, the mounting head
Sidepiece stretch out output shaft, the mounting head releasable connection has removable processing assembly, and the processing assembly includes angle mill group
Part or chain saw componet, the mounting head is provided with two connecting portions, and the angle mill component and chain saw componet are distinguished Matching installation and arrived
On corresponding connecting portion, and it is connected with the output shaft.
Preferably, the mounting head includes the first connecting portion of connection corresponding with angle mill component, the first connecting portion
Including：Non-circular location division and the external screw thread being located on output shaft, the angle mill component includes abrasive disc, and abrasive disc is provided with first to be determined
Position hole, first location hole matches positioning with non-circular location division, and fixing nut is pressed on abrasive disc on output shaft.
Preferably, the mounting head includes the second connecting portion of connection corresponding with chain saw componet.
Preferably, the second connecting portion includes：The driving section that is located on output shaft and it is located at consolidating for mounting head side
Determine hole, the chain saw componet includes sprocket wheel and carrier bar supporting plate, and the sprocket wheel is connected with the driving section, the carrier bar
Frame plate is fixed on the fixing hole by securing member.
Preferably, the fixing hole is located at four edges of the outer circumferential side of the output shaft；And/or the angle mill group
Part includes abrasive disc shield, and the abrasive disc shield is arranged in mounting head by the fixing hole.
Preferably, the carrier bar supporting plate is extended with projection towards mounting head side, it is described that the projection is provided with avoidance
The avoidance slotted eye of output shaft, after the chain saw componet is installed, the projection offsets with the side of the mounting head.
Preferably, the driving section includes non-circular location division and the external screw thread being located on output shaft, on the sprocket wheel
It is provided with the second location hole, the second location hole matches positioning with non-circular location division, fixing nut and external screw thread Matching installation are by chain
Wheel is spacing on output shaft；Or, the driving section includes non-circular location division and the pin-and-hole being located on output shaft, on the sprocket wheel
The second location hole is provided with, the second location hole matches positioning with non-circular location division, is installed with split pin in the pin-and-hole and locks on sprocket wheel
Tightly on output shaft.
Preferably, the chain saw componet also includes the chain with sprocket engagement, the carrier bar supporting plate be provided with for
The carrier bar of the chain, the carrier bar supporting plate is supported to be provided with sliding axis, the carrier bar is provided with elongated hole, the sliding axis peace
It is mounted in the elongated hole and realizes that carrier bar is slidably matched with the carrier bar supporting plate.
Preferably, releasable connection has handle assembly in the fuselage main body, the handle assembly is U-shaped handle or staight shank
Handle.
Preferably, the mounting head is rotated with fuselage main body being connected.
Using beneficial effects of the present invention：
In the present invention, the mounting head releasable connection has removable processing assembly, and the processing assembly includes angle mill group
Part or chain saw componet, when actually used, if necessary to using electric tool as angle grinder use when, by angle mill component be installed to
In mounting head, when need using electric tool as chain saw to use when, can by angle mill component pull down, chain saw componet is installed to
In mounting head, in whole electric tool, fuselage main body is general, as long as user changes the processing assembly of front end, for
For user, the cost of purchase is lower, carries also more convenient during work, general during fuselage for manufacturer,
Can produce in enormous quantities, realize the effect of modularized production, greatly reduce production cost.
Say from structure, in the present invention, be attached using two connecting portions, respectively first connecting portion and the second connection
It can be greatly general that portion, and when actually used, first connecting portion and second connecting portion have, such as on output shaft
Non-circular location division and external screw thread, you can for being connected with abrasive disc, can be connected with chain gear transmission again, further increase
Plus versatility, without on the premise of the structure for changing original angle grinder, can also realize chain saw function so that R＆D costs are dropped to most
It is low, while the chain saw componet of the present invention is also used as independent accessory being sold.
The other features and advantages of the invention will be detailed in following specific embodiment, accompanying drawing exposure.
【Description of the drawings】
Below in conjunction with the accompanying drawings the present invention is described further：
Fig. 1 is the structural representation in the embodiment of the present invention one after established angle mill component；
Fig. 2 is another kind of structure graph in the embodiment of the present invention one after established angle mill component；
Fig. 3 is that the schematic diagram after chain saw componet is installed in the embodiment of the present invention one；
Fig. 4 is the exploded perspective view of chain saw componet and fuselage main body in the embodiment of the present invention one；
Fig. 5 is the structural representation of the intermediate plate supporting plate of the embodiment of the present invention one；
Fig. 6 is the connection diagram of the middle sprocket of the embodiment of the present invention two and output shaft.
【Specific embodiment】
The technical scheme of the embodiment of the present invention is explained and illustrated with reference to the accompanying drawing of the embodiment of the present invention, but under
It is only the preferred embodiments of the present invention to state embodiment, and not all.Based on the embodiment in embodiment, those skilled in the art
Other embodiment is obtained on the premise of creative work is not made, protection scope of the present invention is belonged to.
Embodiment 1：
As shown in Figures 1 to 5, the present embodiment is a kind of electric tool, is a kind of electronic work of hand-held specifically
Tool, including fuselage main body 1 and the mounting head 11 for being located at the front end of fuselage main body 1, the sidepiece of the mounting head 11 stretches out output shaft
111, motor is provided with fuselage main body 1, Motor drive output shaft 111 is rotated, and the releasable connection of the mounting head 11 has removable
Processing assembly, the processing assembly includes that component 2 or chain saw componet 3 are ground in angle, when actually used, if desired by electric tool
When using as angle grinder, angle mill component 2 is installed in mounting head 11, when needing to use electric tool as chain saw
When, angle mill component 2 can be pulled down, chain saw componet 3 is installed in mounting head 11, in whole electric tool, fuselage main body 1 is
General, as long as user changes the processing assembly of front end, for a user, the cost of purchase is lower, takes during work
Band is also more convenient, general during fuselage for manufacturer, can produce in enormous quantities, realizes the effect of modularized production
Really, production cost is greatly reduced.
In structure, the mounting head 11 is provided with two connecting portions, the angle mill component 2 and the difference of chain saw componet 3
With being installed on corresponding connecting portion, and be connected with the output shaft 111, wherein with angle grind component 2 it is corresponding connect be
First connecting portion, be connected with chain saw componet 3 for second connecting portion, in the present embodiment, first connecting portion and second connecting portion
It can be greatly general to have, and further increases versatility, on the premise of without the structure for changing original angle grinder,
Can be achieved with that chain saw componet 3 is installed so that R＆D costs are preferably minimized.
Specific structure, as shown in fig. 1, the first connecting portion includes：The non-circular positioning being located on output shaft 111
Portion 1110 and external screw thread 1111, arrange the plane of two opposition, and and output shaft in all sides of output shaft 111 in the present embodiment
111 all sides intersect to form the non-circular location division 1110, and the angle mill component 2 includes abrasive disc 20, sets on abrasive disc 20
There is the first location hole, the cross sectional shape of first location hole is consistent with the cross sectional shape of non-circular location division 1110, is arranged to
It is non-circular, the effect that abrasive disc 20 is rotated together with output shaft 111 can be played, during installation, the first location hole and non-circular location division
1110 form fits are positioned, and the inner side of non-circular location division 1110 is additionally provided with the compression bulge loop 1112 of compression, non-circular positioning
Portion 1110 matches after positioning with the first location hole, and fixing nut 12 is tightened onto on output shaft 111 by external screw thread 1111, by abrasive disc
20 are pressed between compression bulge loop 1112 and fixing nut 12.
Preferably, being provided with the keyhole 121 of more than 2 in the fixing nut 12 in the present embodiment, can use and it
The key for matching is tightened to fixing nut 12, and the inserting column matched with keyhole 121 is provided with the key, during matching, is inserted
Post is inserted in keyhole 121, is rotated with spanner portions on the key, and key is illustrated in Fig. 1 to 5.
In addition, as shown in Fig. 2 in the present embodiment, releasable connection in the fuselage main body 1 has handle assembly, the handle
Component includes U-shaped handle 141 and staight shank handle 142, is U-shaped handle 141 in Fig. 1, generally uses when chain saw componet is installed, U
Shape handle 141 is acted on more substantially, and user can apply pressure by U-shaped handle 141 to fuselage main body, allow cutting effect more
Good, U-shaped handle 141 can serve as handle, be convenient for carrying, and can also use when established angle grinds component certainly.And show in Fig. 2
For staight shank handle 142, it is more convenient using staight shank handle 142 when being commonly installed angle mill component.
And be rotatable between the mounting head and fuselage main body in the present embodiment, output shaft is side coil in such as Fig. 1
, and output shaft is orientation down in Fig. 2, this to be realized by the way that mounting head is rotated into 90 degree, user can be according to reality
Border processing environment is voluntarily adjusted, and is optimal case when component is ground using angle shown in Fig. 2, in Fig. 3 when certainly actually used
The optimal case for being shown as using during chain saw componet.
As shown in Figures 3 to 5, the second connecting portion includes：The driving section that is located on output shaft 111 and it is located at mounting head
The fixing hole 113 of 11 sides, the chain saw componet 3 includes sprocket wheel 31 and carrier bar supporting plate 32, the sprocket wheel 31 and the transmission
Portion is connected, and the carrier bar supporting plate 32 is fixed on the fixing hole 113 by securing member, driving section in the present embodiment
Structure is consistent with the structure of first connecting portion, and such first connecting portion just can be realized general with driving section.
Specifically, the driving section includes non-circular location division 1110 and the external screw thread 1111 being located on output shaft 111,
The sprocket wheel 31 is provided with the second location hole 311, and the second location hole 311 matches positioning, fixed spiral shell with non-circular location division 1110
Female 12 are pressed on sprocket wheel 31 on output shaft 111 with the Matching installation of external screw thread 1111, and fixing hole 113 has 4 in the present embodiment, and 4
Individual fixing hole 113 is respectively provided at four edges of the outer circumferential side of the output shaft 111, and carrier bar supporting plate 32 passes through 4 screws
It is fixed on the side of mounting head 11.Chain saw componet 3 also includes the chain 33 engaged with the sprocket wheel 31, the carrier bar supporting plate 32
The carrier bar 34 for supporting the chain 33 is provided with, after so installing, carrier bar supporting plate 32 keeps fixing, and sprocket wheel 31 is rotated,
Ensure that chain saw is normally used.
Additionally, 4 fixing holes 113 in the present embodiment also have another effect, it is exactly angle after established angle grinds component 2
Mill component 2 also includes abrasive disc shield 21, when abrasive disc shield 21 is used for preventing abrasive disc 20 from rotating, cuts the defective material for coming and is splashed to use
With family, and 4 fixing holes 113 in the present embodiment, can also be used to that abrasive disc shield 21 is installed, further increase versatility,
Schematic diagram after abrasive disc shield 21 is installed can be found in Fig. 2.
Meanwhile, the chain saw componet 3 in the present embodiment also includes chain saw shield 35, and chain saw shield 35 can be found in Fig. 4, this reality
Apply chain saw shield 35 in example to fix with carrier bar supporting plate 32 by buckle structure, convenient dismounting, replacing, buckle structure includes being located at
Clasp on chain saw shield 35 and the catching groove 321 being located on carrier bar supporting plate.
Because angle grinder is when normally using, in order to prevent abrasive disc 20 from the side of mounting head 11 is interfered with when rotating, generally
The side that abrasive disc 20 installs rear and mounting head 11 is allowed to have the gap of certain distance, and during the installation of chain saw componet 3, carrier bar supporting plate
32 do not rotate, therefore need not arrange this gap, and have gap being also easy to shake, and ask to solve this
Topic, the carrier bar supporting plate 32 is extended with projection 36 towards the side of mounting head 11, and the projection 36 is provided with the avoidance output shaft
111 avoidance slotted eye 361, after the chain saw componet 3 is installed, the projection 36 offsets with the side of the mounting head 11, arranges
The distance in gap is filled up after projection 36, so as to making the connection between carrier bar supporting plate 32 and mounting head 11 more stable.
Preferably, carrier bar 34 described in the present embodiment is to be slidably matched with the carrier bar supporting plate 32, the chain
Board mount plate 32 is provided with sliding axis 321, and the carrier bar 34 is provided with elongated hole 341, and the sliding axis 321 are arranged on the elongated hole
In 341, sliding axis 321 can slide in elongated hole 341 such that it is able to adjust the distance between carrier bar 34 and sprocket wheel 31, it is right to realize
The tensioning of chain 33 and loosen effect.
Embodiment 2：
As shown in fig. 6, the present embodiment is with the difference of embodiment 1, the present embodiment middle sprocket 31 is not by fixed spiral shell
Female mode is fixed on output shaft 111, but by split pin, specifically, shown output shaft 111 is provided with pin-and-hole, when
After second location hole 311 of sprocket wheel 31 is matched with non-circular location division 1110, split pin 15 is penetrated in pin-and-hole, using split pin 15
Sprocket wheel 31 is locked on output shaft 111.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and is familiar with
The those skilled in the art should be understood that the present invention includes but is not limited to accompanying drawing and interior described in specific embodiment above
Hold.The modification of any function and structure principle without departing from the present invention is intended to be included in the scope of claims.
Claims (10)
1. a kind of multi-functional electric tools, including fuselage main body and the mounting head for being located at fuselage main body front end, the mounting head
Sidepiece stretches out output shaft, it is characterised in that the mounting head releasable connection has removable processing assembly, the processing assembly bag
Angle mill component or chain saw componet are included, the mounting head is provided with two connecting portions, the angle mill component and chain saw componet difference
With being installed on corresponding connecting portion, and it is connected with the output shaft.
2. multi-functional electric tools as claimed in claim 1, it is characterised in that the mounting head includes that component is corresponding connects with angle mill
The first connecting portion for connecing, the first connecting portion includes：Non-circular location division and the external screw thread being located on output shaft, the angle mill
Component includes abrasive disc, and abrasive disc is provided with the first location hole, and first location hole matches positioning, fixed spiral shell with non-circular location division
Mother is pressed on abrasive disc on output shaft.
3. multi-functional electric tools as claimed in claim 1, it is characterised in that the mounting head includes connect corresponding with chain saw componet
The second connecting portion for connecing.
4. multi-functional electric tools as claimed in claim 3, it is characterised in that the second connecting portion includes：It is located at output shaft
On driving section and be located at the fixing hole of mounting head side, the chain saw componet includes sprocket wheel and carrier bar supporting plate, the sprocket wheel
It is connected with the driving section, the carrier bar supporting plate is fixed on the fixing hole by securing member.
5. multi-functional electric tools as claimed in claim 4, it is characterised in that the fixing hole is located at the periphery of the output shaft
Four edges of side；And/or, the angle mill component includes abrasive disc shield, and the abrasive disc shield is installed by the fixing hole
In mounting head.
6. multi-functional electric tools as claimed in claim 4, it is characterised in that the carrier bar supporting plate extends towards mounting head side
There is a projection, the projection is provided with the avoidance slotted eye for avoiding the output shaft, after the chain saw componet is installed, the projection and institute
The side for stating mounting head offsets.
7. multi-functional electric tools as claimed in claim 4, it is characterised in that the driving section includes being located at non-on output shaft
Circular location division and external screw thread, the sprocket wheel is provided with the second location hole, and the second location hole matches positioning with non-circular location division,
Fixing nut is spacing on output shaft by sprocket wheel with external screw thread Matching installation；Or, the driving section includes being located on output shaft
Non-circular location division and pin-and-hole, the sprocket wheel is provided with the second location hole, and the second location hole matches positioning with non-circular location division,
Split pin is installed with the pin-and-hole sprocket wheel is locked on output shaft.
8. multi-functional electric tools as claimed in claim 4, it is characterised in that the chain saw componet also includes and sprocket engagement
Chain, the carrier bar supporting plate is provided with the carrier bar for supporting the chain, and the carrier bar supporting plate is provided with sliding axis, institute
State carrier bar and be provided with elongated hole, the sliding axis are arranged in the elongated hole and realize that carrier bar is slidably matched with the carrier bar supporting plate.
9. multi-functional electric tools as described in one of claim 1 to 8, it is characterised in that releasable connection in the fuselage main body
There is handle assembly, the handle assembly is U-shaped handle or staight shank handle.
10. multi-functional electric tools as described in one of claim 1 to 8, it is characterised in that the mounting head turns with fuselage main body
Dynamic connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236114.1A CN106671030B (en) | 2016-12-28 | 2016-12-28 | Multifunctional electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236114.1A CN106671030B (en) | 2016-12-28 | 2016-12-28 | Multifunctional electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106671030A true CN106671030A (en) | 2017-05-17 |
| CN106671030B CN106671030B (en) | 2023-07-21 |
Family
ID=58872875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611236114.1A Active CN106671030B (en) | 2016-12-28 | 2016-12-28 | Multifunctional electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106671030B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733019A (en) * | 2021-09-23 | 2021-12-03 | 浙江嘉宏工具制造有限公司 | Multi-functional multi-angle switching electric tool |
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| CN102511321A (en) * | 2009-02-20 | 2012-06-27 | 苏州宝时得电动工具有限公司 | Chain saw |
| CN203136679U (en) * | 2012-12-05 | 2013-08-21 | 南京德朔实业有限公司 | Chain saw |
| CN105123429A (en) * | 2015-08-12 | 2015-12-09 | 宁波大叶园林设备有限公司 | Lithium electric chain saw for electrically controlling brake and stop of brushless motor through equiangular spiral cam |
| CN206445755U (en) * | 2016-12-28 | 2017-08-29 | 浙江亚特电器有限公司 | A kind of multi-functional electric tools |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2292000Y (en) * | 1997-06-04 | 1998-09-23 | 梁玉珊 | Combined multi-purpose power driven tools |
| DE19833126A1 (en) * | 1998-07-23 | 2000-01-27 | Stihl Maschf Andreas | Hand held motor chain saws, containing combustion air channel extending tangentially to fan wheel rotation direction and leading straight into air filter, and having channel entrance formed by fan wheel housing base |
| CA2335191A1 (en) * | 2001-02-27 | 2001-05-12 | Bill Seabrooke | Nu-grind |
| US20030029045A1 (en) * | 2001-08-11 | 2003-02-13 | Harald Mang | Guide bar for a portable handheld work apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733019A (en) * | 2021-09-23 | 2021-12-03 | 浙江嘉宏工具制造有限公司 | Multi-functional multi-angle switching electric tool |
| CN113733019B (en) * | 2021-09-23 | 2024-03-12 | 浙江嘉宏工具制造有限公司 | Multifunctional multi-angle switching electric tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106671030B (en) | 2023-07-21 |
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Address after: No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Yate Electric Appliance Co.,Ltd. Address before: 314100 No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Applicant before: ZHEJIANG YAT ELECTRICAL APPLIANCE Co.,Ltd. |
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