CN107150316A - Power tool - Google Patents
Power tool Download PDFInfo
- Publication number
- CN107150316A CN107150316A CN201610799487.3A CN201610799487A CN107150316A CN 107150316 A CN107150316 A CN 107150316A CN 201610799487 A CN201610799487 A CN 201610799487A CN 107150316 A CN107150316 A CN 107150316A
- Authority
- CN
- China
- Prior art keywords
- power tool
- light source
- display screen
- lens
- power
- 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
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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
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
Abstract
The invention discloses a kind of power tool, including：Work head, for implementation tool function；Motor, for driving work head；Tool housing, for accommodating motor；Projection display equipment, for the object being incident upon the information of power tool in the way of projecting in front of work head；Electric supply installation, at least for being powered for projection display equipment；Projection display equipment includes：Light source, for producing the light needed for projecting；Display screen, for showing the pattern needed for projecting；Lens, are projected for the light produced by making light source along assigned direction；Display screen is arranged between light source and lens.Its information of power tool disclosed by the invention is projected onto the front of work head, is easy to user to observe.
Description
Technical field
The present invention relates to a kind of power tool, and in particular to a kind of power tool with projection display equipment.
Background technology
Common power tool has：Screwdriver, brill class, electric hammer, sander, reciprocating saw, sweep-saw, annular saw etc..
Electric tool is normally referred to as with the power tool of driven by power.Need to know electricity when user is using electric tool
Working condition at power driven tools, such as mode of operation, dump energy.
Traditional electric tool sets indicating window to indicate dump energy state on battery pack housing, and its set location does not conform to
Reason is not easy to observe dump energy state in user's operating process, and it, which indicates that function is single, in addition can not indicate electric tool
Other information.
The content of the invention
A kind of power tool, including：Work head, for implementation tool function；Motor, for driving work head；Instrument shell
Body, for accommodating motor；Projection display equipment, for the information of power tool to be incident upon into work head front in the way of projecting
Object on；Electric supply installation, at least for being powered for projection display equipment；Projection display equipment includes：Light source, for producing throwing
Light needed for shadow；Display screen, for showing the pattern needed for projecting；Lens, are specified for the light edge produced by making light source
Direction is projected；Display screen is arranged between light source and lens.
Further, light source is LED/light source.
Further, light source is LASER Light Source.
Further, display screen includes a LCDs.
Further, power tool also includes：Drive circuit, for driving LCDs；Controller, for controlling to drive
Dynamic circuit；Drive circuit is electrically connected respectively at LCDs and controller.
Further, power tool also includes：Controller, at least one in control display screen and light source；Detection
Device, for detecting power tool；Controller constitutes communication with detection means and is connected to allow the controller to according to detection means
Testing result control display screen shows different pattern or controls the brightness of light source, color.
Further, side of the lens away from display screen at least includes an arc curve mirror.
Further, lens, display screen and light source are arranged approximately along straight line.
Further, the distance between display screen and light source are more than the focal length of lens.
Further, the distance between display screen and lens centre point are equal to the focal length of lens.
Further, the distance between display screen and light source are more than or equal to the distance between display screen and lens.
Further, the span of the angle of divergence of the light produced by light source is 40 degree to 70 degree.
Further, power tool also includes：Drive shaft, for driving work head rotation；Lens, display screen and light source are big
Cause to arrange along the straight line parallel to drive shaft.
Further, the distance between light source and lens and power tool the size parallel to driving direction of principal axis than take
It is 0.2 to 0.5 to be worth scope.
Further, the information that projection display equipment is shown includes the mode of operation of power tool, motor steering, remaining electricity
Amount.
Further, power tool is electric tool.
A kind of electric tool, including：Work head, for implementation tool function；Motor, for driving work head；Instrument shell
Body, for accommodating motor；Projection display equipment, for the information of electric tool to be incident upon into work head front in the way of projecting
Object on；Supply unit, at least for being powered for motor；Wherein, projection display equipment includes：Light source, for producing projection
Required light；Display screen, for showing the pattern needed for projecting；Lens, for making the light produced by light source along designated parties
To projection；Display screen is arranged between light source and lens.
Further, supply unit includes：Battery bag, for being powered for motor；Battery bag can removably be bound to work
Has housing.
Further, tool housing includes：Joint portion, for combining battery bag；Motor be arranged on lens and joint portion it
Between.
Further, tool housing includes：Joint portion, for combining battery bag；Lens are arranged on work head and joint portion
Between.
Further, tool housing includes：Handle portion, for being gripped for user；Motor be arranged on lens and handle portion it
Between.
Further, tool housing includes：Handle portion, for being gripped for user；Lens are arranged on work head and handle portion
Between.
Further, electric tool also includes：Trigger, for starting motor；Tool housing includes：Handle portion, for supplying
User grips；Trigger may be contained within the homonymy of handle portion with lens.
Further, projection display equipment also includes：Device case, for accommodating at least one in light source and display screen
It is individual；Lens are installed on device case；Device case is removably connected to tool housing.
Further, electric tool also includes：First connection terminal, exposes tool housing；Second connection terminal, exposes dress
Put housing；When device case is connected to tool housing, the first connection terminal and the contact of the second connection terminal.
Further, electric tool also includes：First communication module, is arranged in tool housing；Second communication module, if
It is placed in device case；First communication module and the second communication module constitute wireless telecommunications to transmit the information of electric tool.
Further, projection display equipment also includes：Built-in battery core, is arranged inside device case；Charging inlet, is used for
Charged for built-in battery core；Charging inlet exposing device housing.
Further, projection display equipment also includes：Photoelectric conversion device, for converting optical signal into electric signal；Survey
Away from device, the distance for calculating lightray propagation according to the electric signal of photoelectric conversion device；Light source is LASER Light Source, and optics turns
The reflection light for the laser beam that changing device can send light source is converted into electric signal；Range unit is according to photoelectric conversion device
Electric signal calculates the distance that laser beam is propagated.
Further, the light for sending different colours that light source can be changeable.
Further, light source can be simultaneously emitted by the light of different colours.
Further, electric tool also includes：Controller, the brightness for controlling light source；In the reduction of supply unit electricity
When reduce light source brightness.
The present invention is advantageous in that the much information of power tool can be indicated by projection display equipment, power work
The front that the information of tool is projected onto work head also allows for user's observation.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of power tool as embodiment；
Fig. 2 is the partial sectional view of power tool in Fig. 1；
Fig. 3 is the schematic diagram after the battery bag separation of power tool in Fig. 1；
Fig. 4 is the schematic diagram of the projection display equipment of power tool in Fig. 1；
Fig. 5 is the schematic diagram after the removal partial shell of projection display equipment in Fig. 4；
Fig. 6 is the schematic diagram after the projection display equipment separation of power tool in Fig. 1；
Fig. 7 is the partial enlarged drawing of power tool in Fig. 1；
Fig. 8 is the internal structure schematic diagram of the projection display equipment of power tool in Fig. 1；
Fig. 9 is the schematic diagram of another projection display equipment；
Figure 10 is the schematic diagram of another power tool as embodiment；
Figure 11 is the schematic diagram of another power tool as embodiment；
Figure 12 is the working state schematic representation of the power tool shown in Figure 11.
Embodiment
Make specific introduce to the present invention below in conjunction with the drawings and specific embodiments.
Power tool 100 as depicted in figs. 1 and 2 includes：Work first 10, motor 20, tool housing 30, the and of battery bag 40
Trigger 50.
Work first 10 is used for implementation tool function.Specifically, the power tool shown in Fig. 1 and Fig. 2 is electric drill, work
First 10 can clamp drill bit or screwdriver bit.
Motor 20 is used to drive work first 10.Specifically, power tool 100 also includes drive shaft 60, and drive shaft 60 is used
Rotated in driving work first 10.As a kind of embodiment, power tool 100 includes transmission mechanism 70.The driving transmission of motor 20
Mechanism 70 and then drive shaft 60 is rotated.As shown in Fig. 2 transmission mechanism 70 is gear-box, gear-box plays decelerating effect.As another
A kind of embodiment, drive shaft 60 can also be the output shaft of motor 20.
Tool housing 30 is used to accommodate motor 20；Motor 20 can also be that the internal combustion engine using fuel combustion as power can also
It is the motor using electric power as power, specifically, shown in Fig. 2, motor 20 is motor, and now power tool 100 can also be into it
For electric tool.Battery bag 40 is at least used to power for motor.When power tool 100 has other power units, battery bag 40
Can also be its power supply.As shown in figure 3, battery bag 40 is detachably connected to tool housing 30.Specifically, tool housing 30 is wrapped
Include the joint portion 31 for combining battery bag 40.Battery bag 40 is removably bound to tool housing 30.Power tool 100 can be with
It can also include multiple battery bags 40 including a battery bag 40.Tool housing 30 also includes the handle portion for being used to grip for user
32.Trigger 50 is used to start motor.
Power tool 100 also includes projection display equipment 80.Projection display equipment 80 is used for the information of power tool 100
On the object that first 10 front of work is incident upon in the way of projection.The information that projection display equipment 80 is shown includes power tool
100 mode of operation, motor are turned to, at least one in dump energy.Projection display equipment 80 can show one or many simultaneously
Individual above- mentioned information, can also switch between multiple information.The information that projection display equipment 80 is shown can also be motor 20
Load condition, the working time of power tool 100, temperature etc. show the information of the correlation behavior of power tool 100.Electric supply installation is
Projection display equipment 80 is powered, and electric supply installation includes battery bag 40.
As shown in Figure 4 and Figure 5, projection display equipment 80 includes：Light source 81, display screen 82, lens 83 and device case 84.
Light source 81 is used to produce the light needed for projection.Light source 81 can be that LED/light source can also be LASER Light Source.Light source
81 light colors sent are adjustable, and the light for sending different colours that light source 81 can be changeable can also be simultaneously emitted by different face
The light of color.Display screen 82 is used to show the pattern needed for projection.Display screen 82 includes a LCDs.Lens 83 are used for
Light produced by making light source 81 is projected along assigned direction；Display screen 82 is arranged between light source 81 and lens 83.Device case
84 are used to accommodate at least one in light source 81 and display screen 82.Lens 83 are installed on device case 84.
As shown in Fig. 2, Fig. 6 and Fig. 8, lens 83, display screen 82 and light source 81 are arranged approximately along straight line.Lens 83, display
Screen 82 and light source 81 are approximately along the straight line arrangement parallel to drive shaft 60.The distance between light source 81 and lens 83 L4 and power work
Tool 100 the size L5 parallel to the direction of drive shaft 60 than span be 0.2 to 0.5.Between display screen 82 and light source 81
Apart from L1 be more than lens 83 focal length.As a kind of embodiment, the distance between display screen 82 and light source 81 L1 are more than etc.
In the focal length of twice of lens 83.The distance between display screen 82 and the central point of lens 83 L2 are equal to the focal length of lens 83.Display
The distance between screen 82 and light source 81 L1 are more than or equal to the distance between display screen 82 and lens 83 L3.
Side of the lens 83 away from display screen 82 at least includes an arc curve mirror.The diverging of light produced by light source 81
The span at angle is 40 degree to 70 degree.Further, the span of the angle of divergence is 40 degree to 60 degree.
As shown in Figure 2 and Figure 5, power tool 100 also includes the first communication module 90 and the second communication module 86.First leads to
News module 90 is arranged in tool housing 30.Second communication module 86 is arranged in device case 84.The He of first communication module 90
Second communication module 86 constitutes wireless telecommunications to transmit the information of power tool 100.Specifically, power tool 100 includes work
Has circuit board 92, the first communication module 90 is arranged on instrument circuit board 92.Instrument circuit board 92 is provided with controller 921, drive
Dynamic circuit and detection means 922, controller 921 are used at least one in control display screen 82 and light source 81；Controller 921 is used
In the brightness of control light source 81；The brightness of light source 81 is reduced when the energy of battery bag 40 is reduced.Light source 81 can be by battery bag 40
Power supply, the internal electric source of can also be powered by other power supplys such as external power supply or projection display equipment 80.Can also be according to it
The energy situation of his power supply controls the brightness of light source 81.
Drive circuit is used to drive display screen 82；Controller 921 is used to control drive circuit；Drive circuit respectively with display
Screen 82 and controller 921 are electrically connected.Detection means 922 is used to detect power tool 100；Controller 921 and the structure of detection means 922
Into communication connect so that controller 921 can according to the testing result control display screen 82 of detection means 922 show different pattern or
Control brightness, the color of light source 81.As another embodiment, controller and detection means can also be arranged on device case
It is interior.
Projection display equipment 80 can also be used as power tool as the non-removable part of power tool 100
A 100 dismountable parts, specifically, as shown in fig. 6, device case 84 is detachably connected to tool housing 30.It is specific and
Speech, as shown in fig. 7, power tool 100 includes the first connection terminal 91 and the second connection terminal 85.First connection terminal 91 exposes
Tool housing 30；The exposing device housing 84 of second connection terminal 85.When device case 84 is connected to tool housing 30, first connects
The connection terminal 85 of connecting terminal 91 and second is contacted.First connection terminal 91 and the second connection terminal 85 realize electrical connection, battery bag
40 be that projection display equipment 80 is powered.
As alternative embodiment, as shown in figure 9, projection display equipment 80 ' includes：Light source 81 ', display screen 82 ',
Lens 83 ', device case 84 ', built-in battery core 87 ' and device circuit board component 88 '.
Device circuit board component 88 ' realizes the electrical connection of each several part in projection display equipment 80 '.Built-in battery core 87 ' is set
It is internal in device case 84 '.Built-in battery core 87 ' can power for light source 81 '.Projection display equipment 80 ' can be set individually
The charging inlet 871 ' of exposing device housing 84 ', charging inlet 871 ' is used to charge for built-in battery core 87 '.As a kind of specific
Embodiment, charging inlet 871 ' can also realize the function of the second connection terminal 85.Charging inlet 871 ' can utilize electricity
Pond bag 40 can also use independent charging device to be charged for built-in battery core 87 ' for the built-in power supply of battery core 87 '.
Device circuit board component 88 ' is provided with controller 881 ', range unit 882 ' and drive circuit.
Controller 881 ' is used at least one in control display screen 82 ' and light source 81 '；Controller 881 ' is used to control light
The brightness in source 81 '；Drive circuit is used to drive display screen 82 '；Controller 881 ' is used to control drive circuit；Drive circuit is distinguished
Electrically connected with display screen 82 ' and controller 881 '.
Projection display equipment 80 ' also includes photoelectric conversion device 89 '.Photoelectric conversion device 89 ' is used to convert optical signal
For electric signal.Range unit 882 ' is used for the distance that lightray propagation is calculated according to the electric signal of photoelectric conversion device 89 '.Specifically
For, light source 81 ' is LASER Light Source, and the reflection light for the laser beam that photoelectric conversion device 89 ' can send light source 81 ' is converted
For electric signal；Range unit 882 ' calculates the distance that laser beam is propagated according to the electric signal of photoelectric conversion device 89 '.
Projection display equipment can be arranged on the diverse location of power tool.Specifically, as shown in Figures 2 and 3, project
Display device 80 is located between work first 10 and joint portion 31.Projection display equipment 80 be located at work first 10 and handle portion 32 it
Between.Specifically, refer in short transverse as shown in Figure 2.Projection display equipment 80 is located at work first 10 and joint portion 31
Between.Projection display equipment 80 is located between work first 10 and handle portion 32.More specifically, lens 83 are arranged on work first 10
Between joint portion 31.Lens 83 are arranged between work first 10 and handle portion 32.Trigger 50 may be contained within handle with lens 83
The homonymy in portion 32.
As another embodiment, in the short transverse with reference to shown in Figure 10, projection display equipment 102 can also be by
According in the top of power tool 101, specifically, motor 104 is located between lens 103 and joint portion 106.Motor 104 is located at
Between lens 103 and handle portion 105.Battery bag 107 is bound to joint portion 106.Motor 104 is located at lens 103 and battery bag 107
Between.Work first 108 is located between lens 103 and joint portion 106.In addition, on the axis direction of motor 104, Projection Display
Device 102 can also be arranged on different positions, such as close to work first 108 or away from work first 108.
As another embodiment, as shown in figure 11, projection display equipment 202 is built in the power of power tool 201
In housing 206.Specifically.Light source 205, display screen 204, lens 203 can be accommodated using tool housing 206.Lens 203 are pacified
Loaded on power housing 206.As shown in figure 12, projection display equipment 202 is used for the information of power tool 201 in the way of projecting
On the object for being incident upon first 207 front of work.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way for above-described embodiment, it is all to be obtained by the way of equivalent substitution or equivalent transformation
Technical scheme, all falls within protection scope of the present invention.
Claims (13)
1. a kind of power tool, including：
Work head, for implementation tool function；
Motor, for driving the work head；
Tool housing, for accommodating the motor；
Projection display equipment, for the object being incident upon the information of the power tool in the way of projecting in front of work head
On；
Electric supply installation, at least for being powered for the projection display equipment；
Wherein, the projection display equipment includes：
Light source, for producing the light needed for projecting；
Display screen, for showing the pattern needed for projecting；
Lens, are projected for the light produced by making the light source along assigned direction；
The display screen is arranged between the light source and the lens.
2. power tool according to claim 1, it is characterised in that：
The display screen includes a LCDs.
3. power tool according to claim 2, it is characterised in that：
The power tool also includes：
Drive circuit, for driving the LCDs；
Controller, for controlling the drive circuit；
The drive circuit is electrically connected respectively at the LCDs and the controller.
4. power tool according to claim 1, it is characterised in that：
The power tool also includes：
Controller, for controlling at least one in the display screen and the light source；
Detection means, for detecting the power tool；
The controller and the detection means constitute communication and are connected so that the controller can be according to the inspection of the detection means
Survey brightness, color that display screen described in output control shows different pattern or the control light source.
5. power tool according to claim 1, it is characterised in that：
Side of the lens away from the display screen at least includes an arc curve mirror.
6. power instrument according to claim 1, it is characterised in that：
The lens, the display screen and the light source are arranged approximately along straight line.
7. power instrument according to claim 1, it is characterised in that：
The distance between the display screen and the light source are more than the focal length of the lens.
8. power instrument according to claim 1, it is characterised in that：
The distance between the display screen and the lens centre point are equal to the focal length of the lens.
9. power instrument according to claim 1, it is characterised in that：
The distance between the display screen and the light source are more than or equal to the distance between the display screen and described lens.
10. power tool according to claim 1, it is characterised in that：
The span of the angle of divergence of light produced by the light source is 40 degree to 70 degree.
11. power tool according to claim 1, it is characterised in that：
The power tool also includes：
Drive shaft, for driving the work head to rotate；
The lens, the display screen and the light source are approximately along the straight line arrangement parallel to the drive shaft.
12. power tool according to claim 1, it is characterised in that：
The distance between the light source and the lens are with the power tool in the size ratio parallel to the driving direction of principal axis
Span be 0.2 to 0.5.
13. power tool according to claim 1, it is characterised in that：
The information that the projection display equipment is shown includes the mode of operation of the power tool, motor steering, dump energy.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610126405 | 2016-03-04 | ||
| CN2016101264059 | 2016-03-04 | ||
| CN201610126109 | 2016-03-04 | ||
| CN2016101261099 | 2016-03-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107150316A true CN107150316A (en) | 2017-09-12 |
| CN107150316B CN107150316B (en) | 2019-11-22 |
Family
ID=59791901
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610785779.1A Active CN107150315B (en) | 2016-03-04 | 2016-08-31 | Electric tool |
| CN201610799487.3A Active CN107150316B (en) | 2016-03-04 | 2016-08-31 | Power tool |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610785779.1A Active CN107150315B (en) | 2016-03-04 | 2016-08-31 | Electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN107150315B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110581A (en) * | 2017-12-25 | 2018-06-01 | 芜湖锐进医疗设备有限公司 | Medical saw is drilled with brush motor battery |
| EP3971472A4 (en) * | 2020-01-23 | 2022-11-02 | Nanjing Chervon Industry Co., Ltd. | Utility light, combination of battery pack and utility light, and electric tool |
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| DE2529668A1 (en) * | 1975-07-03 | 1977-01-20 | Ewald Ebenhan | Electric hand-drill with inbuilt light - has light switched on by drill switch and shining on drill bit |
| CN2770894Y (en) * | 2004-12-21 | 2006-04-12 | 车王电子股份有限公司 | Electric tool |
| CN101169585A (en) * | 2006-10-25 | 2008-04-30 | 林修平 | Hand-held moving device and method for displaying information |
| JP2012071409A (en) * | 2010-09-30 | 2012-04-12 | Hitachi Koki Co Ltd | Power tool |
| CN203356658U (en) * | 2013-07-17 | 2013-12-25 | 深圳远驰电动工具有限公司 | Handheld electric drill |
| CN204295654U (en) * | 2014-11-10 | 2015-04-29 | 柏永茂 | A kind of electric tool |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6729413B2 (en) * | 2001-08-24 | 2004-05-04 | Black & Decker Inc. | Power tool with battery pack ejector |
| US6729414B2 (en) * | 2002-07-16 | 2004-05-04 | Black & Decker Inc. | Cordless drill with metal housing |
| CN2677098Y (en) * | 2003-12-26 | 2005-02-09 | 车王电子股份有限公司 | Power tool |
| DE102005021383A1 (en) * | 2005-05-04 | 2006-11-09 | Robert Bosch Gmbh | Rechargeable battery-electric hand tool machine, has LED diode utilized as light source, which switches on light system, where light of diode is erected on operating field, and diode and light control system are arranged in light pipe |
| DE102010064118B4 (en) * | 2010-12-23 | 2015-03-19 | Hilti Aktiengesellschaft | Auxiliary device of a drilling machine and control method |
| AU2012319093A1 (en) * | 2011-06-27 | 2014-01-16 | Board Of Regents Of The University Of Nebraska | On-board tool tracking system and methods of computer assisted surgery |
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2016
- 2016-08-31 CN CN201610785779.1A patent/CN107150315B/en active Active
- 2016-08-31 CN CN201610799487.3A patent/CN107150316B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2529668A1 (en) * | 1975-07-03 | 1977-01-20 | Ewald Ebenhan | Electric hand-drill with inbuilt light - has light switched on by drill switch and shining on drill bit |
| CN2770894Y (en) * | 2004-12-21 | 2006-04-12 | 车王电子股份有限公司 | Electric tool |
| CN101169585A (en) * | 2006-10-25 | 2008-04-30 | 林修平 | Hand-held moving device and method for displaying information |
| JP2012071409A (en) * | 2010-09-30 | 2012-04-12 | Hitachi Koki Co Ltd | Power tool |
| CN203356658U (en) * | 2013-07-17 | 2013-12-25 | 深圳远驰电动工具有限公司 | Handheld electric drill |
| CN204295654U (en) * | 2014-11-10 | 2015-04-29 | 柏永茂 | A kind of electric tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107150315B (en) | 2020-04-07 |
| CN107150316B (en) | 2019-11-22 |
| CN107150315A (en) | 2017-09-12 |
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |