CN113777719B - Optical fiber movable connector - Google Patents
Optical fiber movable connector Download PDFInfo
- Publication number
- CN113777719B CN113777719B CN202111125036.9A CN202111125036A CN113777719B CN 113777719 B CN113777719 B CN 113777719B CN 202111125036 A CN202111125036 A CN 202111125036A CN 113777719 B CN113777719 B CN 113777719B
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- Prior art keywords
- optical fiber
- movable
- clamping piece
- piston
- piece
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
- G02B6/3891—Bayonet type
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3869—Mounting ferrules to connector body, i.e. plugs
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3895—Dismountable connectors, i.e. comprising plugs identification of connection, e.g. right plug to the right socket or full engagement of the mating parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention discloses an optical fiber movable connector which comprises a shell, wherein an optical fiber positioning assembly is arranged in the shell and comprises a fixed optical fiber clamping piece, a movable optical fiber clamping piece and a movable limiting piece, the movable optical fiber clamping piece is arranged on the fixed optical fiber clamping piece in a sliding mode, both the fixed optical fiber clamping piece and the movable optical fiber clamping piece are provided with fiber penetrating holes, one side of each fiber penetrating hole is provided with a notch, two sides of each notch are provided with elastic arms, the shell is provided with the movable limiting piece, a protruding portion is arranged on the movable limiting piece, the outer surface of the movable limiting piece is provided with a transparent layer with a hollow cavity, the transparent layer is provided with an air outlet connected with the hollow cavity, a piston sleeve communicated with the hollow cavity is arranged on the transparent layer, a piston is arranged in the piston sleeve in a sliding mode, and a colored liquid bag is arranged in a cavity defined by the piston and the piston sleeve. The optical fiber connector can directly observe whether the optical fiber inside the optical fiber connector slips or not from the outside of the optical fiber connector, and a large amount of detection time is saved.
Description
Technical Field
The invention belongs to the technical field of optical fiber movable connectors, and particularly relates to an optical fiber movable connector.
Background
With the development of optical communication technology, the optical fiber connector is an essential component for optical fiber connection. The optical fiber connector is generally connected to the socket in an inserting manner, an elastic buckling part matched with the socket is generally arranged on the outer side of a shell of the optical fiber connector, a ceramic connector extending out of one end of the shell is arranged in the shell, and a positioning structure for positioning the optical fiber is arranged in the shell. Optical fiber connector can accomplish the connection of optic fibre after inserting on the socket, realize the transmission of light signal, but the condition that optic fibre was pulled appears in the difficult emergence in the use, because elasticity buckling parts is fixed with the socket, probably lead to appearing sliding between optic fibre and the location structure, make the transmission loss of light signal show the aggravation, and the slippage of optic fibre can't be observed from the shell to general optical fiber connector, only can judge after through detecting light signal, and to a large amount of optical fiber connector on the optical distribution frame, the optical fiber connector that will find optic fibre through the mode that detects one by one slides consumes a large amount of check-out time undoubtedly.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the optical fiber movable connector which can visually observe whether the optical fiber inside the optical fiber movable connector slips or not from the outside of the optical fiber movable connector, thereby saving a large amount of detection time.
In order to solve the technical problem, the invention is solved by the following technical scheme: an optical fiber movable connector comprises a shell, wherein an elastic buckling part matched with a socket is arranged on the outer side of the shell, a ceramic connector extending out of one end of the shell is arranged in the shell, an optical fiber positioning assembly is arranged in the shell and comprises a fixed optical fiber clamping piece, a movable optical fiber clamping piece and a movable limiting piece, an axial slideway is arranged on the fixed optical fiber clamping piece, the movable optical fiber clamping piece is arranged on the axial slideway in a sliding manner, both the fixed optical fiber clamping piece and the movable optical fiber clamping piece are provided with fiber penetrating holes, one side of each fiber penetrating hole is provided with a notch, two elastic arms are arranged on two sides of each notch, the shell is provided with the movable limiting piece, two protruding parts capable of oppositely pressing the two elastic arms are arranged on the movable limiting piece, and the outer surface of the movable limiting piece is provided with a transparent layer with a hollow cavity, the transparent layer is provided with an air outlet connected with the hollow cavity, the transparent layer is provided with a piston sleeve communicated with the hollow cavity, a piston is arranged in the piston sleeve in a sliding mode, a colored liquid sac is arranged in a cavity enclosed by the piston sleeve, one end of the piston is abutted to the protruding portion, the other end of the piston is abutted to the colored liquid sac, and the shell is provided with an opening used for being placed into the protruding portion and the piston sleeve. When the optical fiber movable connector is installed, an optical fiber sequentially passes through the movable optical fiber clamping piece, the fixed optical fiber clamping piece and the ceramic connector, the movable limiting piece is installed in place, namely the two elastic arms are oppositely pressed by the convex part on the movable limiting piece, so that the optical fiber is clamped by the fixed optical fiber clamping piece and the movable optical fiber clamping piece, when the optical fiber is slightly pulled, the optical fiber is not easy to slide due to the clamping of the fixed optical fiber clamping piece, when the optical fiber is pulled by a large force, the optical fiber can slide relative to the fixed optical fiber clamping piece, the movable optical fiber clamping piece can move along with the movement of the optical fiber on the axial slideway, the piston can be pushed to extrude liquid in the colored liquid bag into the hollow cavity of the transparent layer in the moving process of the movable optical fiber clamping piece, the color is presented on the transparent layer, and whether the optical fiber inside slides or not can be directly observed from the outside of the optical fiber movable connector, saving a large amount of detection time.
In the above technical solution, preferably, the fixed optical fiber clamping member is provided with an initial positioning groove for the movable optical fiber clamping member, two sides of the axial slideway are provided with limiting protrusions, and when the elastic arm is not pressed by the protrusions, the limiting protrusions limit the movable optical fiber clamping member in the initial positioning groove for the movable optical fiber clamping member; when the spring arm is compressed by the boss, the spring arm bends to escape the limit boss so that the movable optical fiber clamping member can slide on the axial slide way. By adopting the structure, the movable optical fiber clamping member is always positioned in the initial positioning groove of the movable optical fiber clamping member when being installed, so that the interference between the movable optical fiber clamping member and the piston in the installation process can be prevented, and the colored liquid bag can be prevented from being accidentally broken by extrusion in the installation process.
In the above technical solution, preferably, a lining member is disposed in the housing, the fixing optical fiber clamping member is disposed on the lining member, and the lining member and the ceramic connector are elastically matched by a spring.
In the above technical solution, preferably, a positioning sleeve is disposed at an end of the housing opposite to the ceramic connector, and the fixed optical fiber clamping member is clamped between the lining member and the positioning sleeve.
In the above technical solution, preferably, an elastic optical fiber guide sleeve is clamped between the positioning sleeve and the housing. By adopting the structure, the optical fiber can be prevented from being bent by a large angle at the side where the optical fiber penetrates into the shell to influence the optical signal transmission.
In the above technical scheme, preferably, the movable limiting part is rotatably disposed on the housing, and the movable limiting part is fixed to the outer wall of the housing through a buckle. By adopting the structure, the operation is more convenient in the process of installing the optical fiber, and the movable limiting part can ensure that the boss can be aligned with the elastic arm after being rotated and fixed with the shell buckle.
In the above technical solution, preferably, the inner wall of the movable limiting part is provided with a protruding column, the outer wall of the casing is provided with a groove, and the protruding column is clamped into the groove to rotatably arrange the movable limiting part on the casing. By adopting the structure, the movable limiting part can be conveniently replaced after the optical fiber is displaced and breaks the colored liquid sac, so that other parts can be repeatedly used.
Among the above-mentioned technical scheme, it is preferred, be provided with the installing port on the activity locating part, the piston bush and the piston is followed the installing port penetrates, the stratum lucidum with activity locating part cementing. The structure is adopted to facilitate the assembly of the movable limiting part.
Compared with the prior art, the invention has the following beneficial effects: when the optical fiber movable connector is installed, an optical fiber sequentially passes through the movable optical fiber clamping piece, the fixed optical fiber clamping piece and the ceramic connector, the movable limiting piece is installed in place, namely the two elastic arms are oppositely pressed by the convex part on the movable limiting piece, so that the optical fiber is clamped by the fixed optical fiber clamping piece and the movable optical fiber clamping piece, when the optical fiber is slightly pulled, the optical fiber is not easy to slide due to the clamping of the fixed optical fiber clamping piece, when the optical fiber is pulled by a large force, the optical fiber can slide relative to the fixed optical fiber clamping piece, the movable optical fiber clamping piece can move along with the movement of the optical fiber on the axial slideway, the piston can be pushed to extrude liquid in the colored liquid bag into the hollow cavity of the transparent layer in the moving process of the movable optical fiber clamping piece, the color is presented on the transparent layer, and whether the optical fiber inside slides or not can be directly observed from the outside of the optical fiber movable connector, saving a large amount of detection time.
Drawings
Fig. 1 is a schematic view of the overall structure of an optical fiber loaded in the embodiment of the present invention.
Fig. 2 is a schematic cross-sectional structure diagram of an embodiment of the invention.
Fig. 3 is a schematic cross-sectional structure diagram of the optical fiber after sliding in the embodiment of the invention.
FIG. 4 is an exploded view of the liner, fixed fiber clamping member and movable fiber clamping member of an embodiment of the present invention.
Fig. 5 is an exploded view of a movable limiting member according to an embodiment of the present invention.
Fig. 6 is a schematic bottom view of a movable position-limiting member according to an embodiment of the present invention.
Fig. 7 is a schematic cross-sectional structural view of a movable limiting member according to an embodiment of the present invention.
Fig. 8 is a schematic view of an overall structure of the movable limiting member according to the embodiment of the present invention when the movable limiting member is not buckled.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 8, an optical fiber connector includes a housing 1, an elastic fastening portion 11 is disposed at an outer side of the housing 1 and engaged with a socket, a ceramic connector 2 is disposed in the housing 1 and extends from an end of the housing 1, an optical fiber positioning assembly 3 is disposed in the housing 1, the optical fiber positioning assembly 3 includes a fixed optical fiber clamping member 31, a movable optical fiber clamping member 32 and a movable limiting member 33, an axial sliding way 311 is disposed on the fixed optical fiber clamping member 31, the movable optical fiber clamping member 32 is slidably disposed on the axial sliding way 311, both the fixed optical fiber clamping member 31 and the movable optical fiber clamping member 32 are provided with a fiber penetrating hole 34, a notch 341 is disposed at one side of the fiber penetrating hole 34, both sides of the notch 341 are provided with elastic arms 342, the housing 1 is provided with the movable limiting member 33, two protruding portions 331 capable of pressing the two elastic arms 342 toward each other are disposed on the movable limiting member 33, a transparent layer 35 having a hollow cavity 351 is disposed on an outer surface of the movable limiting member 33, an air outlet 352 connected with the hollow cavity 351 is formed in the transparent layer 35, a piston sleeve 36 communicated with the hollow cavity 351 is arranged on the transparent layer 35, a piston 37 is arranged in the piston sleeve 36 in a sliding mode, a colored liquid bag 38 is arranged in a cavity defined by the piston 37 and the piston sleeve 36, one end of the piston 37 abuts against the projection 331, the other end of the piston 37 abuts against the colored liquid bag 38, and an opening used for placing the projection 331 and the piston sleeve 36 is formed in the shell 1. When the optical fiber movable connector is installed, an optical fiber sequentially passes through the movable optical fiber clamping member 32, the fixed optical fiber clamping member 31 and the ceramic connector 2, the movable limiting member 33 is installed in place, namely the two elastic arms 342 are oppositely pressed by the convex part 331 on the movable limiting member 33, so that the fixed optical fiber clamping member 31 and the movable optical fiber clamping member 32 both clamp the optical fiber, when the optical fiber is slightly pulled, the optical fiber is not easy to slide due to the clamping of the fixed optical fiber clamping member 31, and when the optical fiber is pulled by a large force, the optical fiber can slide relative to the fixed optical fiber clamping member 31, the movable optical fiber clamping member 32 can move along with the movement of the optical fiber on the axial slide way 311, and in the moving process of the movable optical fiber clamping member 32, the piston 37 can be pushed to extrude the liquid in the colored liquid bag 38 into the hollow cavity 351 of the transparent layer 35, so that the transparent layer 35 presents color, therefore, whether the optical fiber inside slips or not can be directly observed from the outside of the optical fiber movable connector, and a large amount of detection time is saved.
In this embodiment, the fixed optical fiber clamping member 31 is provided with an initial positioning slot 312 for the movable optical fiber clamping member, the two sides of the axial slideway 311 are provided with limiting protrusions 313, and when the elastic arm 342 is not pressed by the protrusions 331, the limiting protrusions 313 limit the movable optical fiber clamping member 32 in the initial positioning slot 312 for the movable optical fiber clamping member; when the spring arm 342 is compressed by the protrusion 331, the spring arm 342 flexes away from the limit protrusion 313 so that the movable fiber clamp 32 can slide on the axial slide 311. By adopting the structure, when being installed, the movable optical fiber clamping member 32 is always positioned in the initial positioning groove 312 of the movable optical fiber clamping member, so that the interference between the movable optical fiber clamping member 32 and the piston 37 in the installation process can be prevented, and the colored liquid bag 38 can be prevented from being accidentally crushed in the installation process.
In this embodiment, a lining member 4 is disposed in the housing 1, a clamping member 31 for fixing the optical fiber is disposed on the lining member 4, and the lining member 4 and the ceramic connector 2 are elastically engaged with each other by a spring 5.
In this embodiment, a positioning sleeve 6 is disposed at an end of the housing 1 opposite to the ceramic connector 2, and the fixed optical fiber clamping member 31 is clamped between the lining member 4 and the positioning sleeve 6.
In this embodiment, an elastic optical fiber guide sleeve 7 is clamped between the positioning sleeve 6 and the housing 1. By adopting the structure, the optical fiber can be prevented from being bent by a large angle at the side where the optical fiber penetrates into the shell 1 to influence the optical signal transmission.
In this embodiment, the movable limiting part 33 is rotatably disposed on the housing 1, and the movable limiting part 33 is fixed to the outer wall of the housing 1 by a buckle. With the structure, the operation is more convenient in the process of installing the optical fiber, and the movable limiting part 33 can ensure that the boss 331 can be aligned with the elastic arm 342 after being rotated and fastened with the shell 1. Of course, it is easily understood by those skilled in the art that in other embodiments, the movable limiting member 33 may be separated from the housing 1 before the optical fiber is installed, or may be slidably connected, and after the optical fiber is inserted, the movable limiting member 33 is fixed to the housing 1 by a snap, so that the protrusion 331 on the movable limiting member 33 may also press the two elastic arms 342 toward each other.
In this embodiment, the inner wall of the movable limiting member 33 is provided with a convex pillar 332, the outer wall of the housing 1 is provided with a groove 12, and the convex pillar 332 is clamped in the groove 12 to rotatably set the movable limiting member 33 on the housing 1. By adopting the structure, the movable limiting piece 33 can be conveniently replaced after the optical fiber is displaced to break the colored liquid bag 38, so that the rest parts can be repeatedly used.
In this embodiment, in order to facilitate the assembly of the movable limiting member 33, the movable limiting member 33 is provided with an installation opening 333, the piston sleeve 36 and the piston 37 penetrate through the installation opening 333, and the transparent layer 35 is bonded to the movable limiting member 33. When the piston sleeve 36 and the piston 37 are installed, the piston sleeve 36 and the piston 37 penetrate through the installation opening 333, and the transparent layer 35 is glued through glue.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an optic fibre connector that moves about, includes casing (1), casing (1) outside be provided with socket complex elasticity buckling parts (11), be provided with ceramic connector (2) that stretch out from casing (1) one end in casing (1), be provided with optic fibre locating component (3), its characterized in that in casing (1): the optical fiber positioning component (3) comprises a fixed optical fiber clamping piece (31), a movable optical fiber clamping piece (32) and a movable limiting piece (33), an axial slide way (311) is arranged on the fixed optical fiber clamping piece (31), the movable optical fiber clamping piece (32) is arranged on the axial slide way (311) in a sliding mode, the fixed optical fiber clamping piece (31) and the movable optical fiber clamping piece (32) are provided with fiber penetrating holes (34), one side of each fiber penetrating hole (34) is provided with a notch (341), two sides of each notch (341) are provided with elastic arms (342), the shell (1) is provided with the movable limiting piece (33), the movable limiting piece (33) is provided with two protruding portions (331) capable of pressing the two elastic arms (342) oppositely, and the outer surface of the movable limiting piece (33) is provided with a transparent layer (35) with a hollow cavity (351), the transparent layer (35) is provided with an air outlet (352) connected with the hollow cavity (351), a piston sleeve (36) communicated with the hollow cavity (351) is arranged on the transparent layer (35), a piston (37) is arranged in the piston sleeve (36) in a sliding manner, a cavity enclosed by the piston (37) and the piston sleeve (36) is internally provided with a colored liquid sac (38), one end of the piston (37) is abutted against the bulge part (331), the other end of the piston (37) is abutted against the colored liquid bag (38), the shell (1) is provided with an opening for placing the lug boss (331) and the piston sleeve (36), the fixed optical fiber clamping piece (31) is fixedly arranged in the shell (1), the movable fiber clamping member (32) can push the piston (37) as the fiber clamped by the movable fiber clamping member moves to the piston (37) side.
2. The fiber optic pigtail of claim 1, wherein: the fixed optical fiber clamping piece (31) is provided with a movable optical fiber clamping piece initial positioning groove (312), two sides of the axial slide way (311) are provided with limiting convex parts (313), and when the elastic arm (342) is not pressed by the convex parts (331), the limiting convex parts (313) limit the movable optical fiber clamping piece (32) in the movable optical fiber clamping piece initial positioning groove (312); when the elastic arm (342) is pressed by the convex part (331), the elastic arm (342) bends to avoid the limit convex part (313) so that the movable optical fiber clamping piece (32) can slide on the axial slideway (311).
3. The fiber optic pigtail of claim 1, wherein: the optical fiber connector is characterized in that a lining piece (4) is arranged in the shell (1), the fixing optical fiber clamping piece (31) is arranged on the lining piece (4), and the lining piece (4) is elastically matched with the ceramic connector (2) through a spring (5).
4. A fiber optic pigtail connector as recited in claim 3, wherein: the optical fiber connector is characterized in that a positioning sleeve (6) is arranged at one end, opposite to the ceramic connector (2), of the shell (1), and the fixed optical fiber clamping piece (31) is clamped between the lining piece (4) and the positioning sleeve (6).
5. The fiber optic pigtail of claim 4, wherein: an elastic optical fiber guide sleeve (7) is clamped between the positioning sleeve (6) and the shell (1).
6. The fiber optic pigtail of claim 1, wherein: the movable limiting part (33) is rotatably arranged on the shell (1), and the movable limiting part (33) is fixed with the outer wall of the shell (1) through a buckle.
7. The fiber optic pigtail of claim 6, wherein: the utility model discloses a portable electronic device, including casing (1), activity locating part (33), movable locating part (33) inner wall is provided with projection (332), casing (1) outer wall is provided with recess (12), projection (332) card is gone into will in recess (12) movable locating part (33) rotate set up in on casing (1).
8. The fiber optic pigtail of claim 1, wherein: be provided with installing port (333) on the activity locating part (33), piston sleeve (36) and piston (37) follow installing port (333) penetrate, stratum lucidum (35) with the cementing of activity locating part (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111125036.9A CN113777719B (en) | 2021-09-25 | 2021-09-25 | Optical fiber movable connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111125036.9A CN113777719B (en) | 2021-09-25 | 2021-09-25 | Optical fiber movable connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113777719A CN113777719A (en) | 2021-12-10 |
| CN113777719B true CN113777719B (en) | 2022-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111125036.9A Active CN113777719B (en) | 2021-09-25 | 2021-09-25 | Optical fiber movable connector |
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| Country | Link |
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| CN (1) | CN113777719B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202305889U (en) * | 2011-08-17 | 2012-07-04 | 沈继茂 | Optical fiber connector |
| JP2015175885A (en) * | 2014-03-13 | 2015-10-05 | ウシオ電機株式会社 | Fiber-optic device |
| JP2017003612A (en) * | 2015-06-04 | 2017-01-05 | 日立金属株式会社 | Communication light visualization cord and communication light detector |
| CN109884752A (en) * | 2019-04-24 | 2019-06-14 | 中航光电科技股份有限公司 | For realizing fiber alignment and the mechanical connecting device of fixation in optical fiber connector |
| CN110058355A (en) * | 2019-03-19 | 2019-07-26 | 武汉光迅科技股份有限公司 | A kind of automatic coupling device and automatic coupling method |
| CN214201842U (en) * | 2020-12-23 | 2021-09-14 | 宁波明日通信器材有限公司 | LC optical fiber adapter with detection function |
-
2021
- 2021-09-25 CN CN202111125036.9A patent/CN113777719B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202305889U (en) * | 2011-08-17 | 2012-07-04 | 沈继茂 | Optical fiber connector |
| JP2015175885A (en) * | 2014-03-13 | 2015-10-05 | ウシオ電機株式会社 | Fiber-optic device |
| JP2017003612A (en) * | 2015-06-04 | 2017-01-05 | 日立金属株式会社 | Communication light visualization cord and communication light detector |
| CN110058355A (en) * | 2019-03-19 | 2019-07-26 | 武汉光迅科技股份有限公司 | A kind of automatic coupling device and automatic coupling method |
| CN109884752A (en) * | 2019-04-24 | 2019-06-14 | 中航光电科技股份有限公司 | For realizing fiber alignment and the mechanical connecting device of fixation in optical fiber connector |
| CN214201842U (en) * | 2020-12-23 | 2021-09-14 | 宁波明日通信器材有限公司 | LC optical fiber adapter with detection function |
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| Publication number | Publication date |
|---|---|
| CN113777719A (en) | 2021-12-10 |
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Denomination of invention: Optical fiber movable connector Effective date of registration: 20221020 Granted publication date: 20220520 Pledgee: Agricultural Bank of China Limited Shaoxing Shangyu sub branch Pledgor: ZHEJIANG HONGSHENG COMMUNICATION TECHNOLOGY Co.,Ltd. Registration number: Y2022330002721 |