CN205503951U - Micro -gear case and output shaft thereof - Google Patents
Micro -gear case and output shaft thereof Download PDFInfo
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- CN205503951U CN205503951U CN201620128426.XU CN201620128426U CN205503951U CN 205503951 U CN205503951 U CN 205503951U CN 201620128426 U CN201620128426 U CN 201620128426U CN 205503951 U CN205503951 U CN 205503951U
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- axle body
- output shaft
- planet carrier
- shell
- miniature gears
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Abstract
The utility model relates to a technical field of gear box discloses a micro -gear case and output shaft thereof. The micro -gear case, which comprises an outer shell, locate the interior and planet carrier of subsides by terminal surface in its output of shell, and wear to locate in the output of shell and with planet carrier rotational positioning's output shaft, wherein, the output shaft includes the axle body, and coaxial the setting in the location of axle body tail end portion, along the center pin of output shaft and towards the spacing cooperation of direction of axle body outer end between location portion and the planet carrier, and along the center pin and towards the spacing cooperation of the orientation of axle body tail end between the outer terminal surface of axle body outer end and output. The utility model provides a micro -gear case and output shaft thereof has effectively prevented output shaft axial displacement, has improved whole the operating steadily nature of this micro -gear case, has prolonged life, in addition, and this micro -gear case simple structure, processing and convenient assembling to, its output shaft commonality is good, and is both applicable in ordinary diameter gear box, also is applicable to the gear box of small diameter.
Description
Technical field
This utility model relates to the technical field of gear-box, particularly relates to a kind of miniature gears case and output shaft thereof.
Background technology
At present, the use of the miniature gears case that volume is little, speed reducing ratio is high is more and more extensive, such as electronic lock,
Communication apparatus, precision instrument, medical apparatus and instruments, Smart Home etc..Output shaft is as the final power of gear-box
Output element, it is torque and the part of stress maximum in gear-box.The output shaft of existing miniature gears case,
It uses cylinder or the cylindrical structural with location trimming to design, when mounted, and will by axial compressive force
On the afterbody planet carrier of output shaft press-in gear-box, and output shaft is avoided to move vertically by interference fit
Dynamic.But, when gear-box long time running, owing to being acted on by alternate load so that output shaft and row
The magnitude of interference between carrier progressively reduces, and so, when output shaft is by axial force, easily moves axially
And affect the performance of gear-box, even occur output shaft abjection or gearbox shaft to wait indefinitely inefficacy to card.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, it is provided that a kind of miniature gears case and
Its output shaft, it is to avoid moving axially of output shaft, improves the stationarity of miniature gears case overall operation,
Thus extend its service life.
This utility model embodiment provides a kind of miniature gears case, including shell, is arranged in described shell
And be posted by the planet carrier of the inner face of its outfan, and be arranged in the outfan of described shell and with institute
Stating planet carrier and rotate the output shaft of location, described output shaft includes axle body, and is coaxially disposed in described axle body
The location division of tail end, along the central shaft of described output shaft and towards institute between described location division and described planet carrier
State the spacing cooperation in direction of axle body outer end, and along institute between described axle body outer end and the outer face of described outfan
State central shaft the spacing cooperation in direction towards described axle body tail end.
Further, described axle body and described location division are cylindric, and the diameter of axle of described location division is more than
The diameter of axle of described axle body.
Further, described planet carrier center has installing hole, and the inner end edge of described installing hole offers
Heavy stand groove, the periphery of described location division is convexly equipped with the step adapting to described heavy stand groove, and described location division wears
In described installing hole, and described step is placed in described heavy stand groove and is formed towards described axle body outer end
Move axially spacing.
Further, the periphery wall of described location division having installation trimming, described installing hole inwall has fixed
Position trimming, described installation trimming is parallel is posted by the trimming of described location formation rotation location.
Further, being provided with bearing in the perforate of described outfan, described axle body is rotatably arranged in described
In bearing.
Further, the periphery of described axle body outer end is equipped with annular groove, described annular groove is arranged with card
Ring, described snap ring is kept out in the outer face of outfan of described shell and forms the axle towards described axle body tail end
To mobile spacing.
Further, the outer end of described axle body is arranged with pad, and described shim clip is located at described snap ring and institute
Between the outer face of the outfan stating shell.
Further, the periphery wall of described axle body outer end has the output trimming for being in transmission connection.
Further, described miniature gears case also includes the planetary gear being connected with described planet carrier, with described
The motor gear of planetary gear engagement, and it is covered in the end cap of described shell tail end.
This utility model embodiment provides a kind of output shaft, in miniature gears case, described miniature gears
Case includes shell, and in being arranged at described shell and be posted by the planet carrier of inner face of its outfan, institute
State output shaft be arranged in the outfan of described shell and rotate location, described output shaft bag with described planet carrier
Include axle body, and be coaxially disposed in the location division of described axle body tail end, described location division and described planet carrier it
Between the central shaft along described output shaft the spacing cooperation in direction towards described axle body outer end, and outside described axle body
Hold between the outer face of described outfan that direction along described central shaft and towards described axle body tail end is spacing joins
Close.
Based on technique scheme, and compared with prior art, the miniature tooth that this utility model embodiment proposes
Roller box and output shaft thereof, wherein, output shaft includes axle body and is coaxially disposed in the location division of this axle body tail end,
This output shaft coordinates by its location division is spacing with planet carrier, defines along its central shaft towards its outer extreme direction
Mobile spacing, so, it is to avoid the axial gear-box of output is outside mobile and abjection problem occurs, meanwhile, should
Output shaft coordinates by its axle body outer end is spacing with the outer face of shell outfan, defines along its central shaft court
The movement in its tail end direction is spacing, so, it is to avoid output axial gear-box is internal mobile and gear-box occurs
The most stuck problem, so, is effectively increased the stationarity of this miniature gears case overall operation, and extends
Its service life, and, the simple in construction of this miniature gears case, processing and easy to assembly, meanwhile, its
The versatility of output shaft is good, has both been applicable to common diameter gear-box, has been also applied for the gear-box of minute diameter.
Accompanying drawing explanation
Fig. 1 is the perspective view of the miniature gears case that this utility model embodiment proposes；
Fig. 2 is the cross-sectional view of the miniature gears case that this utility model embodiment proposes；
Fig. 3 is the cross-section structure partial schematic diagram of the miniature gears case that this utility model embodiment proposes；
Fig. 4 is the perspective view of the output shaft that this utility model embodiment proposes.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And embodiment, this utility model is further elaborated.Should be appreciated that described herein specifically
Embodiment, only in order to explain this utility model, is not used to limit this utility model.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, and it can be straight
It is connected on another element or may be simultaneously present centering elements.When an element is known as " being connected to " separately
One element, it can be directly to another element or may be simultaneously present centering elements.
It addition, also, it should be noted the orientation such as left and right, upper and lower in this utility model embodiment is used
Language, is only relative concept or with the normal operating condition of product as reference each other, and should not be regarded as
Restrictive.Below in conjunction with specific embodiment, realization of the present utility model is described in detail.
As shown in Figures 1 to 4, this utility model embodiment proposes a kind of miniature gears case, this miniature tooth
Roller box can include shell 1, planet carrier 2 and output shaft 3, and wherein, shell 1 is front end perforate and tail end opening
Hollow shell, here, shell 1 front end is outfan 11, in planet carrier 2 is arranged on shell 1 and recline this
The inner face of outfan 11, meanwhile, output shaft 3 is arranged in the outfan 11 of shell 1, and this output
Location, so, planet carrier 2 axial rotation is rotated in the tail end of axle 3 is inserted into shell 1 and with planet carrier 2
Output shaft 3 axial rotation can be driven.Specifically, output shaft 3 can include axle body 31 and location division 32,
Location division 32 is co-axially located at the tail end of this axle body 31.In the inside of the shell 1 of this miniature gears case, defeated
The location division 32 of shaft 3 is spacing with planet carrier 2 to be coordinated, and is specially along the central shaft of output shaft 3 and towards it
The spacing cooperation in direction of axle body 31 outer end, meanwhile, at the outside of the shell 1 of this miniature gears case, output shaft
Axle body 31 outer end of 3 is spacing with the outer face of the outfan 11 of shell 1 to be coordinated, and is specially along output shaft 3
Central shaft and towards the spacing cooperation in direction of its axle body 31 tail end.
As it has been described above, the miniature gears case that this utility model embodiment proposes, its output shaft 3 includes axle body 31
And it is coaxially disposed in the location division 32 of this axle body 31 tail end, here, output shaft 3 is by its location division 32
Spacing with planet carrier 2 coordinate, define along its central shaft towards the movement of its outer extreme direction spacing, so, keep away
Having exempted from output shaft 3 and the problem of abjection occurred to outside movement of gear-box, meanwhile, output shaft 3 is by its axle
Body 31 outer end is spacing with the outer face of the outfan 11 of shell 1 to be coordinated, and defines along its central shaft towards its tail
The movement of extreme direction is spacing, so, it is to avoid output shaft 3 is internal mobile and gearbox shaft occur to gear-box
To stuck problem, so, it is effectively increased the stationarity of this miniature gears case overall operation, and extends
Its service life, and, the simple in construction of this miniature gears case, processing is with easy to assembly, and meanwhile, it is defeated
The versatility of shaft 3 is good, has both been applicable to common diameter gear-box, has been also applied for the gear-box of minute diameter.
Further, in embodiment of the present utility model, above-mentioned axle body 31 and above-mentioned location division 32 are the most excellent
Elect as cylindric, and the diameter of axle of location division 32 is more than the diameter of axle of axle body 31.So, by by axle body 31
It is designed as cylindric with location division 32 and makes location division 32 diameter of axle more than axle body 31 diameter of axle so that output shaft 3
Assembling with planet carrier 2 and position convenient.Certainly, according to practical situation and demand, new in this practicality
In other embodiments of type, axle body 31 and location division 32 can be also other shapes, the most uniquely limit.
Further, in embodiment of the present utility model, above-mentioned planet carrier 2 center has installing hole 20,
This installing hole 20 adapts to the location division 32 of above-mentioned output shaft 3 tail end, and herein, location division 32 is contained in this
In installing hole 20 and formed rotation location, so, during planet carrier 2 axial rotation, output shaft 3 can be driven
Axial rotation.Certainly, according to practical situation and real needs, in other embodiments of the present utility model,
Above-mentioned planet carrier 2 is located by connecting with output shaft 3 also by other modes and coordinates, and the most uniquely limits.
Further, in embodiment of the present utility model, the inner end edge of above-mentioned installing hole 20 offers
Heavy stand groove 200, and the periphery of above-mentioned location division 32 is convexly equipped with the step 321 adapting to this heavy stand groove 200,
This step 321 is contained in this heavy stand groove 200, and meanwhile, the bottom land of heavy stand groove 200 keeps out step 321
Move towards installing hole 20 outer end, so, i.e. define towards moving axially of axle body 31 outer end spacing, also
That is, step 321 coordinates with heavy stand groove 200 that to avoid output shaft 3 outside mobile to gear-box.It addition,
Between inwall and the periphery wall of step 321 of heavy stand groove 200, there is empty avoiding gap, and the end face of location division 32
Without departing from the tail end end face of the medial surface of planet carrier 2, i.e. output shaft 3 without departing from the medial surface of planet carrier 2,
So so that location division 32 is the compactest with the assembling of planet carrier 2, and installs simple and convenient.Certainly, root
According to practical situation and real needs, in other embodiments of the present utility model, the location of above-mentioned output shaft 3
Carry out spacing cooperation also by other modes between portion 32 with planet carrier 2, the most uniquely limit.
In embodiment of the present utility model, the periphery wall of above-mentioned location division 32 has installation trimming 322,
Herein, this installation trimming 322 is a plane.Accordingly, installing hole 20 inwall of above-mentioned planet carrier 2 has
Adapt to the location trimming (being not drawn in accompanying drawing) of this installation trimming 322.After assembling, location division 32 houses
In installing hole 20, and installation trimming 322 on the periphery wall of location division 32 is parallel abuts in installing hole 20
In the location trimming of inwall, so so that location division 32 is formed with planet carrier 2 and rotates location.Certainly, root
According to practical situation and demand, in other embodiments of the present utility model, also may be used in the location division 32 of output shaft 3
Location fit is rotated by other means with planet carrier 2, such as key connecting etc., the most uniquely limit.
In this utility model embodiment, in the perforate of above-mentioned outfan 11, it is provided with bearing 4, output shaft 3
Axle body 31 be rotatably arranged in bearing 4.By being provided with bearing 4 in the perforate of outfan 11,
And the axle body 31 of output shaft 3 is rotatably arranged in bearing 4, efficiently reduce the rotation of output shaft 3
Friction, improves the overall performance of this miniature gears case.
In embodiment of the present utility model, the periphery of above-mentioned axle body 31 outer end is equipped with annular groove 310,
It is arranged with snap ring 5 on this annular groove 310, and this snap ring 5 is kept out outside the outfan 11 of above-mentioned shell 1
End face, blocks axle body 31 moving axially to its tail end direction, so, i.e. defines towards axle body 31
Moving axially of tail end is spacing.It is to say, snap ring 5 with keep away spacing cooperation of keeping out of outfan 11 outer face
Exempt from output shaft 3 internal mobile to gear-box, thus avoided miniature gears case and occur the most stuck.Certainly,
According to practical situation and demand, in other embodiments of the present utility model, snap ring 5 can directly be kept out
On outfan 11 outer face, it is possible to be indirectly to keep out on outfan 11 outer face, it addition, output shaft 3
Axle body 31 and outfan 11 between coordinate also by other modes are spacing, the most uniquely limit.
Further, in embodiment of the present utility model, the outer end of above-mentioned axle body 31 is arranged with pad 6,
And between the outer face of this pad 6 outfan 11 of being folded in above-mentioned snap ring 5 and above-mentioned shell 1.Namely
Saying, snap ring 5 is arranged in annular groove 310, and snap ring 5 is positioned at the outside of outfan 11 outer face of shell 1,
In order to reduce friction, pad 6, so, snap ring 5 are installed between the outer face of snap ring 5 and outfan 11
Jointly act on pad 6 and outfan 11 outer face and avoid output shaft 3 movement inside gear-box.When
So, according to practical situation and real needs, in other embodiments of the present utility model, also by other
Mode reduces the friction between pad 6 and outfan 11 outer face, the most uniquely limits.
In embodiment of the present utility model, the periphery wall of above-mentioned axle body 31 outer end has output trimming 311,
This output trimming 311 realizes power transmission for being in transmission connection with other equipment outside.Herein, output trimming
311 and above-mentioned installation trimming 322 contribute to the driving torque when output shaft 3 rotates.Certainly, according to reality
Border situation and real needs, in other embodiments of the present utility model, realize axle also by other modes
Body 31 outer end is in transmission connection with other equipment outside, and such as key connecting etc. the most uniquely limits.
Further, in embodiment of the present utility model, above-mentioned miniature gears case also include planetary gear 7,
Motor gear 8 and end cap 9, wherein, end cap 9 is sealed on the opening of above-mentioned shell 1 tail end, end cap 9
Covering formation inner chamber with shell 1, above-mentioned planet carrier 2, planetary gear 7 and motor gear 8 are arranged at this
In inner chamber, and planetary gear 7 is movably connected on planet carrier 2, and motor gear 8 engages with planetary gear 7.
So, motor gear 8 rotates, and drives the planetary gear 7 engaged to rotate, and planetary gear 7 drives again
Planet carrier 2 rotates, and planet carrier 2 drives output shaft 3 to rotate again.Certainly, according to practical situation and demand,
In other embodiments of this utility model, miniature gears case may also include miscellaneous part, is not construed as limiting herein.
In embodiment of the present utility model, when above-mentioned miniature gears case is installed, first by output shaft 3
The location division 32 of tail end is installed in the installing hole 20 of planet carrier 2, then bearing 4 is arranged on shell 1
Outfan 11 delivery outlet (i.e. perforate) in, then axle body 31 outer end of output shaft 3 is piercing in axle
Hold 4, secondly other parts of this miniature gears case are installed, finally install in axle body 31 outer end of output shaft 3
Pad 6 and snap ring 5, thus complete the installation of output shaft 3.
As shown in Figures 1 to 4, this utility model embodiment also proposed a kind of output shaft 3, and it is used for
Stating in miniature gears case, this miniature gears case can include shell 1 and planet carrier 2 and this output shaft 3, its
In, shell 1 is the hollow shell of front end perforate and tail end opening, and herein, shell 1 front end is outfan 11,
In planet carrier 2 is arranged on shell 1 and the inner face of this outfan 11 that reclines, output shaft 3 is arranged in shell 1
Outfan 11 in, and rotate location in the tail end of this output shaft 3 is inserted into shell 1 and with planet carrier 2,
So, planet carrier 2 axial rotation can drive output shaft 3 axial rotation.Specifically, this output shaft 3 can
Including axle body 31 and location division 32, location division 32 is co-axially located at the tail end of this axle body 31, output shaft 3
Location division 32 spacing with planet carrier 2 coordinate, be specially along the central shaft of output shaft 3 and towards its axle body
The spacing cooperation in direction of 31 outer ends, meanwhile, axle body 31 outer end of output shaft 3 and the outfan 11 of shell 1
The spacing cooperation in outer face, i.e. along output shaft 3 central shaft and towards the spacing cooperation in direction of its axle body 31 tail end.
Based on technique scheme, the output shaft that this utility model embodiment proposes, by its location division 32
Spacing with planet carrier 2 coordinate, define along its central shaft towards the movement of its outer extreme direction spacing, it is to avoid be defeated
There is the problem of abjection to outside movement of gear-box in shaft 3, and by its axle body 31 outer end and shell 1
The spacing cooperation in outer face of outfan 11, define along its central shaft towards the movement in its tail end direction spacing,
Avoid output shaft 3 and gearbox shaft occurs to stuck problem to gear-box internal movement, be effectively increased
The stationarity of miniature gears case overall operation, and extend its service life, and, leading to of this output shaft 3
Good by property, both it is applicable to common diameter gear-box, is also applied for the gear-box of minute diameter.
Embodiment described above, only this utility model detailed description of the invention, but protection model of the present utility model
Enclose and be not limited thereto, the technology model that any those familiar with the art discloses at this utility model
In enclosing, the amendment of various equivalence can be readily occurred in, replace and improvement etc., these amendments, replace and improve
All should contain within protection domain of the present utility model.Therefore, protection domain Ying Yiquan of the present utility model
The protection domain that profit requires is as the criterion.
Claims (10)
1. miniature gears case, including shell, in being arranged at described shell and be posted by the inner face of its outfan
Planet carrier, and be arranged in the outfan of described shell and with described planet carrier rotate location output shaft,
It is characterized in that, described output shaft includes axle body, and is coaxially disposed in the location division of described axle body tail end,
Central shaft along described output shaft the side towards described axle body outer end between described location division and described planet carrier
To spacing cooperation, and between described axle body outer end and the outer face of described outfan along described central shaft and towards
The spacing cooperation in direction of described axle body tail end.
2. miniature gears case as claimed in claim 1, it is characterised in that described axle body and described location division
It is cylindric, and the diameter of axle of described location division is more than the diameter of axle of described axle body.
3. miniature gears case as claimed in claim 2, it is characterised in that described planet carrier center has
Installing hole, the inner end edge of described installing hole offers heavy stand groove, and the periphery of described location division is convexly equipped with adaptation
In the step of described heavy stand groove, described location division is arranged in described installing hole, and described step is placed in institute
State in heavy stand groove and formed towards moving axially of described axle body outer end spacing.
4. miniature gears case as claimed in claim 3, it is characterised in that on the periphery wall of described location division
Having installation trimming, described installing hole inwall has location trimming, described installation trimming is parallel be posted by described
Formed in the trimming of location and rotate location.
5. miniature gears case as claimed in claim 3, it is characterised in that set in the perforate of described outfan
Being equipped with bearing, described axle body is rotatably arranged in described bearing.
6. miniature gears case as claimed in claim 1, it is characterised in that on the periphery of described axle body outer end
Being equipped with annular groove, described annular groove is arranged with snap ring, described snap ring is kept out in the outfan of described shell
Outer face and formed towards moving axially of described axle body tail end spacing.
7. miniature gears case as claimed in claim 6, it is characterised in that the outer end of described axle body is arranged with
Between pad, and the outer face of the described shim clip outfan of being located at described snap ring and described shell.
8. the miniature gears case as described in any one of claim 1 to 7, it is characterised in that outside described axle body
On the periphery wall of end, there is the output trimming for being in transmission connection.
9. the miniature gears case as described in any one of claim 1 to 7, it is characterised in that described miniature tooth
Roller box also includes the planetary gear being connected with described planet carrier, the motor gear engaged with described planetary gear,
And it is covered in the end cap of described shell tail end.
10. output shaft, in miniature gears case, described miniature gears case includes shell, and is arranged at
In described shell and be posted by the planet carrier of inner face of its outfan, described output shaft is arranged in described shell
Outfan in and with described planet carrier rotate location, it is characterised in that described output shaft includes axle body, with
And it is coaxially disposed in the location division of described axle body tail end, along described defeated between described location division and described planet carrier
The central shaft of shaft the spacing cooperation in direction towards described axle body outer end, and described axle body outer end is defeated with described
Go out between the outer face of end along described central shaft and towards the spacing cooperation in direction of described axle body tail end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620128426.XU CN205503951U (en) | 2016-02-18 | 2016-02-18 | Micro -gear case and output shaft thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620128426.XU CN205503951U (en) | 2016-02-18 | 2016-02-18 | Micro -gear case and output shaft thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205503951U true CN205503951U (en) | 2016-08-24 |
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ID=56724391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620128426.XU Active CN205503951U (en) | 2016-02-18 | 2016-02-18 | Micro -gear case and output shaft thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN205503951U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017139944A1 (en) * | 2016-02-18 | 2017-08-24 | 深圳市兆威机电有限公司 | Miniature gear box and output shaft thereof |
| CN107091320A (en) * | 2016-02-18 | 2017-08-25 | 深圳市兆威机电有限公司 | Miniature gears case and its output shaft |
| CN107191578A (en) * | 2017-05-23 | 2017-09-22 | 深圳市兆威机电有限公司 | It is a kind of to be driven output mechanism, gear-box and the assemble method for being driven output mechanism |
-
2016
- 2016-02-18 CN CN201620128426.XU patent/CN205503951U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017139944A1 (en) * | 2016-02-18 | 2017-08-24 | 深圳市兆威机电有限公司 | Miniature gear box and output shaft thereof |
| CN107091320A (en) * | 2016-02-18 | 2017-08-25 | 深圳市兆威机电有限公司 | Miniature gears case and its output shaft |
| CN107091320B (en) * | 2016-02-18 | 2023-10-10 | 深圳市兆威机电股份有限公司 | Micro gear box and output shaft thereof |
| CN107191578A (en) * | 2017-05-23 | 2017-09-22 | 深圳市兆威机电有限公司 | It is a kind of to be driven output mechanism, gear-box and the assemble method for being driven output mechanism |
| WO2018214983A1 (en) * | 2017-05-23 | 2018-11-29 | 深圳市兆威机电股份有限公司 | Transmission output mechanism, gear box and assembly method of transmission output mechanism |
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| C14 | Grant of patent or utility model | ||
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Address after: 518000 Guangdong Shenzhen Baoan District Fuyong Street Dragon King Temple Industrial Park 18 Patentee after: Shenzhen mechatronics, mechatronics and Limited by Share Ltd Address before: 518000 Guangdong Shenzhen Baoan District Fuyong Street Dragon King Temple Industrial Park 18 Patentee before: Shenzhen Zhaowei Machinery & Electronics Co., Ltd. |