CN108134279B - A kind of power supply plug assembly - Google Patents
A kind of power supply plug assembly Download PDFInfo
- Publication number
- CN108134279B CN108134279B CN201711495584.4A CN201711495584A CN108134279B CN 108134279 B CN108134279 B CN 108134279B CN 201711495584 A CN201711495584 A CN 201711495584A CN 108134279 B CN108134279 B CN 108134279B
- Authority
- CN
- China
- Prior art keywords
- power supply
- connection
- motor
- grafting
- transfer block
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
Abstract
The present invention provides a kind of power supply plug assembly, including shell, hollow cavity, grafting channel, grafting head assembly, power supply part and driving part；The hollow cavity is located in the shell and is connected to by the grafting channel with outside, and the grafting head assembly is inserted into the hollow cavity by the grafting channel；The grafting head assembly includes connection-peg ontology, connects electric body and be plugged on the rotating part of the connection-peg ontology right end, and the rotating part includes two panels conductive sheet and transfer block, and described to connect electric body include two, and is embedded in the top and bottom of the connection-peg ontology respectively；The power supply part includes two power supply bodies, for contacting realization conducting power supply with the two panels conductive sheet；The driving part includes that switching slot, motor and elastomeric element, the switching slot are fixedly connected with the power output shaft of the motor, and the transfer block is inserted into the switching slot, and the elastomeric element controls the motor rotation after being touched.
Description
Technical field
The present invention relates to power supply technical field, in particular to a kind of power supply plug assembly.
Background technique
Electrical equipment is when realizing with power supply grafting, the connection for the mechanical system for needing more to consolidate, the prior art
The middle friction using between socket and plug and when realizing insertion state locking, this socket is in use process
In be easy to produce sparking, cause a hidden trouble to using safe.Moreover, this interface, which will need to be manually operated, to be inserted when needing to power off
Head is disconnected to realize electrical disconnection with socket, this causes trouble to operation, and is manually operated and pulls the plug out of the socket to realize electricity
Gas disconnection be easy to cause security risk, and when this socket is accidentally hit due to accidentally kicking will cause between socket and plug suddenly
Electrical to disconnect, which results in electrical equipments to power off and cisco unity malfunction suddenly, can also cause to electrical equipment if serious
Damage, and generate unnecessary economic loss.
Summary of the invention
The technical problem to be solved in the present invention is to provide it is a kind of can realize automatically electrical connection and accidentally kick accidentally hit when it is anti-breaking
The power supply plug assembly of electricity.
To solve the above problems, the present invention adopts the following technical scheme:
A kind of power supply plug assembly of the invention, including shell, hollow cavity, grafting channel, grafting head assembly, confession
Electrical components and driving part；The hollow cavity is located in the shell and is connected to by the grafting channel with outside, described
Grafting head assembly is inserted into the hollow cavity by the grafting channel；The grafting head assembly includes connection-peg ontology, connects electricity
The section of body and the rotating part for being plugged on the connection-peg ontology right end, connection-peg ontology centre position is rectangle, is used for
Channel cooperation positioning is patched with described, the right end of the connection-peg ontology is cylindrical body and the cylindrical body with rotating part setting
Groove, which matches, constitutes rotatable connection, and the rotating part includes two panels conductive sheet and transfer block, the two panels conductive sheet phase
Side to the excircle that the rotating part is arranged in simultaneously is extended inwardly in a radial direction to the cylindrical body groove inner wall, described
Transfer block is arranged in the middle part of the rotating part right side, described to connect electric body including two, and is embedded in the connection-peg ontology respectively
The upper and lower surface of right end cylindrical body, described to connect electric body one end connection external electric equipment, the other end extends to the connection-peg sheet
The end of body；The power supply part includes the power supply body that two ends have collar flange, is relatively arranged on respectively described hollow
The upper side and lower side of cavity right wall, for contacting realization conducting power supply with the two panels conductive sheet；The driving part includes turning
Access slot, motor and elastomeric element, the switching slot are fixedly connected with the power output shaft of the motor, and the elastomeric element is located at
Between the motor right side and the inner walls, after the transfer block is inserted into the switching slot, described in elastomeric element control
Motor rotation, the power output shaft of the motor, it is described switching slot, the transfer block axial centre be on the same straight line.
The grafting head assembly is inserted into the grafting channel and enters the hollow cavity, presses the grafting head assembly and makes
The transfer block is inserted into the switching slot, and the elastomeric element is depressed, and the motor receives control signal and opens, described
The power output shaft of motor drives the switching slot rotation, and the switching slot drives to be turned with the rotating part of the transfer block one
Dynamic, so that the conductive sheet is contacted with the power supply body, while the conductive sheet connects electric body and contacts with described, realizes leading for circuit
It is logical；When without electricity consumption, the motor receives control signal and opens, and the power output shaft of the motor drives the switching slot to turn
Dynamic, the switching slot drives to be rotated backward with the rotating part of the transfer block one, so that the conductive sheet and the power supply body
Separation, while the conductive sheet connects electric body and separates with described, realizes the disconnection of circuit.The elastomeric element generates rebound after being pressurized
Power is displaced outwardly the rotating part, and the collar flange moves axially outward for being limited in rotating part described in power supply process
Dynamic to be detached from the power supply body, the cooperation of the elastomeric element and the collar flange can effectively prevent loosening because of the rotating part
Cause to power off suddenly and electrical equipment is damaged.
In one embodiment of the invention, the right side of the connection-peg ontology includes four magnet blocks, is set respectively
It sets at the edge up and down of the right side；The cylindrical body groove floor of the rotating part includes four iron blocks, is respectively set
At the edge up and down of the cylindrical body groove floor.
Four magnet blocks are set in the right side of the connection-peg ontology, are set in the cylindrical body groove floor of the rotating part
Four iron blocks are set, so that the rotating part can realize positioning more quickly during rotation, so that the shape being turned on or off
State is more stable.
In one embodiment of the invention, the power supply body is cylindrical body；The conductive sheet end is arc-shaped, institute
It is identical as the power supply radius of body to state arc-shaped inner radius.
The power supply body is set as cylindrical body, and to be set as internal diameter identical with the cylindrical body for the end of the conductive sheet
Circular arc, it is each during enabling the power supply body and the electric conductor to realize Rapid matching, contact or disconnection more quickly
Position is synchronous, and local instability is avoided to cause safety problem.
In one embodiment of the invention, the elastomeric element includes inductive switch, described in the transfer block insertion
Elastomeric element is squeezed after switching slot, and the inductive switch controls the motor and rotates so that the conductive sheet and the power supply
Body contact.
In the event of a power failure, elastomeric element is squeezed after the transfer block is inserted into the switching slot, the induction
Switch issues working signal, controls the motor rotation so that the conductive sheet is contacted with the power supply body；The case where powering
Under, pressing the grafting head assembly again is squeezed elastomeric element, and the inductive switch does not work, to prevent from making because accidentally touching
At power-off.It when confirmation power supply terminates to need to power off, needs artificially to control the motor, i.e., artificial movement gives control the motor
The signal of rotation separates the conductive sheet with the power supply body so that the motor rotates.
In one embodiment of the invention, the transfer block is that shape is identical more with the cross section of the switching slot
Side shape, the polygon include triangle, quadrangle, any one in pentagon or hexagon.
The cross section of the transfer block and the switching slot can be arbitrary polygon, can be realized described turn as long as meeting
Access slot drives the function of the transfer block rotation.
The beneficial effect of power supply plug assembly of the present invention is: passing through the phase interworking of the switching slot and transfer block of polygon
Conjunction enables motor that rotating part is driven to rotate, and rotation is driven by motor in rotating part, can realize that connecing electric body and power supply body passes through
The disconnection of electrical connection or electrical connection is realized in contact and disconnection with conductive sheet；The structure of whole equipment is relatively easy, energy
Enough guarantee reliable for operation and reduce manufacturing cost, considerably increase the stability of electrical connection, effectively prevents due to accidentally kicking
The generation of electrical equipment circut breaking is accidentally hit and caused, the hair of the security risk generated when manual operation is electrical to be disconnected is avoided
It is raw.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of power supply plug assembly of the present invention, wherein grafting head assembly is inserted into grafting
In channel；
Fig. 2 is the schematic diagram of internal structure under power supply plug assembly on state of the present invention；
Fig. 3 is the structural schematic diagram of connection-peg ontology end face described in power supply plug assembly of the present invention；
Fig. 4 is the structural schematic diagram of rotating part described in power supply plug assembly of the present invention；
Wherein, 1- shell, 2- hollow cavity, 3- grafting channel, 4- grafting head assembly, 41- connection-peg ontology, 411- magnet
Block, 42- connect electric body, 43- rotating part, 431- conductive sheet, 432- transfer block, 433- iron block, 5- power supply part, 6- driving part,
61- switching slot, 62- motor, 63- elastomeric element.
Specific embodiment
In order to illustrate more clearly of technical solution of the present invention, it is briefly described below in conjunction with specific embodiment, but
Technical solution of the present invention is not limited to the following example.
Embodiment 1
As shown in Figs. 1-2, the present invention provides a kind of power supply plug assembly, including shell 1, hollow cavity 2, grafting are logical
Road 3, grafting head assembly 4, power supply part 5 and driving part 6；The hollow cavity 2 is located in the shell 1 and is inserted by described
It connects road 3 to be connected to outside, the grafting head assembly 4 is inserted into the hollow cavity 2 by the grafting channel 3；The grafting
Head assembly 4 includes connection-peg ontology 41, connects electric body 42 and be plugged on the rotating part 43 of 41 right end of connection-peg ontology, described to insert
The section at the intermediate position of joint body 41 is rectangle, for patching the cooperation positioning of channel 3 with described, the connection-peg ontology 41
Right end is cylindrical body and matches the rotatable connection of composition, the rotating part with the cylindrical body groove of the rotating part 43 setting
43 include two panels conductive sheet 431 and transfer block 432, and the two panels conductive sheet 431 is oppositely arranged on the outer circle of the rotating part 43
The side in week is simultaneously extended inwardly in a radial direction to the cylindrical body groove inner wall, and the transfer block 432 is arranged in the rotation
It is described to connect electric body 42 including two in the middle part of 43 right side of portion, and respectively embedded in the upper surface of described connection-peg ontology 41 and in the following, institute
It states and connects electric 42 one end of body connection external electric equipment, the other end extends to the end of the connection-peg ontology 41；The power supply
Part 5 includes the power supply body that two ends have collar flange, is relatively arranged on the upside of the hollow cavity right wall respectively under
Side, for contacting realization conducting power supply with the two panels conductive sheet；The driving part 6 includes switching slot 61, motor 62 and bullet
Property component 63, the switching slot 61 is fixedly connected with the power output shaft of the motor 62, and the elastomeric element 63 is located at described
Between 1 inner wall of 62 right side of motor and the shell, the transfer block 432 is inserted into the switching slot 61, and the motor 62 rotates,
The power output shaft of the motor 62, it is described switching slot 61, the transfer block 432 axial centre be on the same straight line.
Embodiment 2
As shown in Figs 1-4, the present invention provides a kind of power supply plug assembly, including shell 1, hollow cavity 2, grafting are logical
Road 3, grafting head assembly 4, power supply part 5 and driving part 6；The hollow cavity 2 is located in the shell 1 and is inserted by described
It connects road 3 to be connected to outside, the grafting head assembly 4 is inserted into the hollow cavity 2 by the grafting channel 3；The grafting
Head assembly 4 includes connection-peg ontology 41, connects electric body 42 and be plugged on the rotating part 43 of 41 right end of connection-peg ontology, described to insert
The section at the intermediate position of joint body 41 is rectangle, for patching the cooperation positioning of channel 3 with described, the connection-peg ontology 41
Right end is cylindrical body and matches the rotatable connection of composition, the rotating part with the cylindrical body groove of the rotating part 43 setting
43 include two panels conductive sheet 431 and transfer block 432, and the two panels conductive sheet 431 is oppositely arranged on the outer circle of the rotating part 43
The side in week is simultaneously extended inwardly in a radial direction to the cylindrical body groove inner wall, and the transfer block 432 is arranged in the rotation
It is described to connect electric body 42 including two in the middle part of 43 right side of portion, and respectively embedded in the upper surface of described connection-peg ontology 41 and in the following, institute
It states and connects electric 42 one end of body connection external electric equipment, the other end extends to the end of the connection-peg ontology 41；The connection-peg
The right side of ontology 41 includes four magnet blocks 411, is separately positioned on the edge up and down of the right side；The rotating part
43 cylindrical body groove floor includes four iron blocks 433, is separately positioned on the edge up and down of the cylindrical body groove floor；
The power supply part 5 includes the power supply body that two ends have collar flange, is relatively arranged on the hollow cavity right wall respectively
The upper side and lower side, for contact with the two panels conductive sheet realization conducting power；The driving part 6 include switching slot 61,
Motor 62 and elastomeric element 63, the switching slot 61 are fixedly connected with the power output shaft of the motor 62, the elastomeric element
63 between 1 inner wall of 62 right side of motor and the shell, after the transfer block 432 is inserted into the switching slot 61, institute
State motor 62 rotation, the power output shaft of the motor 62, it is described switching slot 61, the transfer block 432 axial centre exist
On same straight line, the transfer block 432 is the identical hexagon of shape with the cross section of the switching slot 61.
Embodiment 3
As shown in Figs. 1-2, the present invention provides a kind of power supply plug assembly, including shell 1, hollow cavity 2, grafting are logical
Road 3, grafting head assembly 4, power supply part 5 and driving part 6；The hollow cavity 2 is located in the shell 1 and is inserted by described
It connects road 3 to be connected to outside, the grafting head assembly 4 is inserted into the hollow cavity 2 by the grafting channel 3；The grafting
Head assembly 4 includes connection-peg ontology 41, connects electric body 42 and be plugged on the rotating part 43 of 41 right end of connection-peg ontology, described to insert
The section at the intermediate position of joint body 41 is rectangle, for patching the cooperation positioning of channel 3 with described, the connection-peg ontology 41
Right end is cylindrical body and matches the rotatable connection of composition, the rotating part with the cylindrical body groove of the rotating part 43 setting
43 include two panels conductive sheet 431 and transfer block 432, and the two panels conductive sheet 431 is oppositely arranged on the outer circle of the rotating part 43
The side in week is simultaneously extended inwardly in a radial direction to the cylindrical body groove inner wall, and the transfer block 432 is arranged in the rotation
It is described to connect electric body 42 including two in the middle part of 43 right side of portion, and respectively embedded in the upper surface of described connection-peg ontology 41 and in the following, institute
It states and connects electric 42 one end of body connection external electric equipment, the other end extends to the end of the connection-peg ontology 41；The power supply
Part 5 includes the power supply body that two ends have collar flange, and the end of the power supply body includes collar flange, is oppositely arranged respectively
In the upper side and lower side of the hollow cavity right wall, for contacting realization conducting power supply with the two panels conductive sheet；The power supply
Body is cylindrical body, and 431 end of conductive sheet is arc-shaped, the radius phase of the arc-shaped inner radius and the power supply body
Together；The driving part 6 includes switching slot 61, motor 62 and elastomeric element 63, and the switching slot 61 is dynamic with the motor 62
Power output shaft is fixedly connected, and the elastomeric element 63 is between 1 inner wall of 62 right side of motor and the shell, and described turn
Connect after block 432 is inserted into the switching slot 61, the motor 62 rotates, the power output shaft of the motor 62, the switching slot 61,
The axial centre of the transfer block 432 is on the same straight line, and the transfer block 432 and the cross section of the switching slot 61 are shape
The identical quadrangle of shape.
Embodiment 4
As shown in Figs. 1-2, the present invention provides a kind of power supply plug assembly, including shell 1, hollow cavity 2, grafting are logical
Road 3, grafting head assembly 4, power supply part 5 and driving part 6；The hollow cavity 2 is located in the shell 1 and is inserted by described
It connects road 3 to be connected to outside, the grafting head assembly 4 is inserted into the hollow cavity 2 by the grafting channel 3；The grafting
Head assembly 4 includes connection-peg ontology 41, connects electric body 42 and be plugged on the rotating part 43 of 41 right end of connection-peg ontology, described to insert
The section at the intermediate position of joint body 41 is rectangle, for patching the cooperation positioning of channel 3 with described, the connection-peg ontology 41
Right end is cylindrical body and matches the rotatable connection of composition, the rotating part with the cylindrical body groove of the rotating part 43 setting
43 include two panels conductive sheet 431 and transfer block 432, and the two panels conductive sheet 431 is oppositely arranged on the outer circle of the rotating part 43
The side in week is simultaneously extended inwardly in a radial direction to the cylindrical body groove inner wall, and the transfer block 432 is arranged in the rotation
It is described to connect electric body 42 including two in the middle part of 43 right side of portion, and respectively embedded in the upper surface of described connection-peg ontology 41 and in the following, institute
It states and connects electric 42 one end of body connection external electric equipment, the other end extends to the end of the connection-peg ontology 41；The power supply
Part 5 includes the power supply body that two ends have collar flange, and the end of the power supply body includes collar flange, is oppositely arranged respectively
In the upper side and lower side of the hollow cavity right wall, for contacting realization conducting power supply with the two panels conductive sheet；The power supply
Body is cylindrical body, and 431 end of conductive sheet is arc-shaped, the radius phase of the arc-shaped inner radius and the power supply body
Together；The driving part 6 includes switching slot 61, motor 62 and elastomeric element 63, and the switching slot 61 is dynamic with the motor 62
Power output shaft is fixedly connected, and the elastomeric element 63 is between 1 inner wall of 62 right side of motor and the shell, the bullet
Property component 63 include inductive switch, elastomeric element 63 is squeezed after the transfer block 432 is inserted into the switching slot 61, the sense
Inductive switch controls the rotation of motor 62 so that the conductive sheet 431 is contacted with the power supply body, and the power of the motor 62 is defeated
Shaft, the switching slot 61, the transfer block 432 axial centre be on the same straight line, the transfer block 432 with described turn
The cross section of access slot 61 is identical four triangle of shape.
Claims (5)
1. a kind of power supply plug assembly, it is characterised in that: including shell, hollow cavity, grafting channel, grafting head assembly,
Power supply part and driving part；
The hollow cavity is located in the shell and is connected to by the grafting channel with outside, and the grafting head assembly passes through
The hollow cavity is inserted into the grafting channel；
The grafting head assembly includes connection-peg ontology, connects electric body and be plugged on the rotating part of the connection-peg ontology right end, institute
The section for stating position among connection-peg ontology is rectangle, is positioned for cooperating with the grafting channel, the connection-peg ontology
Right end is cylindrical body and matches the rotatable connection of composition, the rotating part packet with the cylindrical body groove of rotating part setting
Include two panels conductive sheet and transfer block, the two panels conductive sheet is oppositely arranged on the side of the excircle of the rotating part and radially
Direction extends inwardly to the cylindrical body groove inner wall, and the transfer block is arranged in the middle part of the rotating part right side, described to connect
Electric body includes two, and is embedded in the upper and lower surface of the connection-peg ontology right end cylindrical body respectively, described to connect electric body one end connection
External electric equipment, the other end extend to the end of the connection-peg ontology；
The power supply part includes the power supply body that two ends have collar flange, and it is right to be relatively arranged on the hollow cavity respectively
The upper side and lower side of wall, for contacting realization conducting power supply with the two panels conductive sheet；
The driving part includes switching slot, motor and elastomeric element, and the power output shaft of the switching slot and the motor is solid
Fixed connection, between the motor right side and the inner walls, the transfer block insertion is described to be turned the elastomeric element
After access slot, motor rotation, the power output shaft of the motor, the switching slot, the transfer block axial centre exist
On same straight line.
2. power supply plug assembly according to claim 1, it is characterised in that: the right end bread of the connection-peg ontology
Four magnet blocks are included, the edge up and down of the right side is separately positioned on；The cylindrical body groove-bottom bread of the rotating part
Four iron blocks are included, the edge up and down of the cylindrical body groove floor is separately positioned on.
3. power supply plug assembly according to claim 1 or 2, it is characterised in that: the power supply body is cylindrical body；Institute
State conductive sheet end be it is arc-shaped, the arc-shaped inner radius is identical as the power supply radius of body.
4. power supply plug assembly according to claim 1 or 2, it is characterised in that: the elastomeric element includes induction
Switch, elastomeric element is squeezed after the transfer block is inserted into the switching slot, and the inductive switch controls the motor rotation
So that the conductive sheet is contacted with the power supply body.
5. power supply plug assembly according to claim 1 or 2, it is characterised in that: the transfer block and the switching
The cross section of slot is the identical polygon of shape, and the polygon includes triangle, quadrangle, any in pentagon or hexagon
It is a kind of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711495584.4A CN108134279B (en) | 2017-12-31 | 2017-12-31 | A kind of power supply plug assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711495584.4A CN108134279B (en) | 2017-12-31 | 2017-12-31 | A kind of power supply plug assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108134279A CN108134279A (en) | 2018-06-08 |
| CN108134279B true CN108134279B (en) | 2019-03-12 |
Family
ID=62394280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711495584.4A Active CN108134279B (en) | 2017-12-31 | 2017-12-31 | A kind of power supply plug assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108134279B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO303955B1 (en) * | 1996-04-15 | 1998-09-28 | Knut Ove Steinhovden | Pull-out puller |
| CN106785673B (en) * | 2017-01-06 | 2018-05-15 | 安徽原上草节能环保科技有限公司 | A kind of power supply plug assembly |
| CN106654712B (en) * | 2017-01-11 | 2018-04-17 | 南京士帅电子科技有限公司 | A kind of anti-loosening power supply plug assembly |
| CN106848754B (en) * | 2017-03-03 | 2018-07-10 | 张甘泉 | It is a kind of lockable for electric installation |
-
2017
- 2017-12-31 CN CN201711495584.4A patent/CN108134279B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108134279A (en) | 2018-06-08 |
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Effective date of registration: 20190130 Address after: Room 261, No. 16, Hou Chengdong District Station, Xining City, Qinghai Province Applicant after: Mu Mengfei Address before: 315040 international road B 1209, 586 Jiangnan Road, hi tech Zone, Ningbo, Zhejiang, China, 95 Applicant before: NINGBO FEICHAI ROBOT TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20191206 Address after: Wuhe County 233300 Anhui city of Bengbu province Huaihe road general merchandise company commercial building East Second Patentee after: BENGBU ZHIDA TECHNOLOGY CONSULTING Co.,Ltd. Address before: 810006 Qinghai province Xining City Chengdong district station room 261 No. 16 Patentee before: Mu Mengfei |
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Effective date of registration: 20230731 Address after: No.55, Building 3, Yard 1, Fenghui Nanfang, Lianhu District, Xi'an, Shaanxi 710000 Patentee after: Yu Nan Address before: 233300 Bengbu, Wuhe County, Anhui Province, Huaihe Road, Japan, commercial and residential building second East. Patentee before: BENGBU ZHIDA TECHNOLOGY CONSULTING Co.,Ltd. |
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