CN112986264B - Optical fiber connector detection device - Google Patents
Optical fiber connector detection device Download PDFInfo
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- CN112986264B CN112986264B CN202110301124.3A CN202110301124A CN112986264B CN 112986264 B CN112986264 B CN 112986264B CN 202110301124 A CN202110301124 A CN 202110301124A CN 112986264 B CN112986264 B CN 112986264B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 57
- 238000001514 detection method Methods 0.000 title claims abstract description 56
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 28
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 28
- 241001330002 Bambuseae Species 0.000 claims description 28
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 28
- 239000011425 bamboo Substances 0.000 claims description 28
- 238000007689 inspection Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses an optical fiber connector detection device which comprises a detection box, two fixing cylinders and two optical fiber connectors, wherein two sides of the top of the detection box are respectively communicated with the bottoms of the two fixing cylinders, the bottoms of the optical fiber connectors penetrate through the fixing cylinders and extend to the bottoms of the fixing cylinders, one side of an inner cavity of the detection box is fixedly connected with a driving box, and the bottoms of the inner cavities of the driving box are fixedly connected with a motor through a supporting plate. This fiber connector detection device can all-round shoot fiber connector, and the quality of fiber connector that can be better detects, and when need detecting the contrast to two fiber connector, can carry out fine regulation to the position of camera, and then can compare after detecting two fiber connector fast, and convenient to use person operates according to actual conditions.
Description
Technical Field
The invention relates to the technical field of optical fiber connectors, in particular to an optical fiber connector detection device.
Background
An optical fiber connector is a device for detachable (movable) connection between optical fibers, which precisely connects two end surfaces of the optical fibers so that the light energy output by the transmitting optical fiber can be coupled into the receiving optical fiber to the maximum extent, and the influence on the system caused by the intervention of the light energy into an optical link is minimized, which is a basic requirement of the optical fiber connector. To a certain extent, the reliability and various performances of the optical transmission system are affected by the optical fiber connector, and the principle of the optical fiber connector is that before the coupling element is combined with the optical element and the optical fiber, an image capturing device is generally used to capture an image of each optical channel to detect whether each optical channel has poor molding, such as concave or dirty, and if one lens in each optical channel has poor molding or dirty, the optical channel is disqualified, and the optical coupling element is disqualified, so that the existing optical fiber connector detection device has wide application, but has some problems.
The traditional optical fiber connector detection device can only shoot the optical fiber connector at a fixed angle, so that the optical fiber connector cannot be comprehensively detected, the obtained image information is single, and the detection device can only detect one optical fiber connector at a time and then needs to replace to detect the other optical fiber connector, so that in the actual use process, the two optical fiber connectors are often detected and compared, and the two optical fiber connectors are separated so as to be inconvenient for a user to observe and compare.
There is therefore a need for improvements over existing fiber optic connector detection devices.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an optical fiber connector detection device, which solves the problems that the optical fiber connector detection device cannot adjust the angle of a camera and cannot compare two optical fiber connectors.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides an optical fiber connector detection device, includes detection case, fixed section of thick bamboo and fiber connector, the quantity of fixed section of thick bamboo and fiber connector is two, the both sides at detection case top communicate with the bottom of two fixed sections respectively, the bottom of fiber connector runs through the fixed section of thick bamboo and extends to the bottom of fixed section of thick bamboo, one side fixedly connected with driving box of detection case inner chamber to the bottom of driving box inner chamber passes through backup pad fixedly connected with motor, the output of motor passes through shaft coupling fixedly connected with threaded rod to the one end that the threaded rod kept away from the motor is rotated with one side of driving box inner chamber through the bearing and is connected, the surface threaded connection of threaded rod has the screw thread piece to the top fixedly connected with driving plate, the top of driving plate runs through the driving box and extends to the top of driving box to the surface fixedly connected with shooting case at driving plate top, the bottom fixedly connected with of shooting case inner chamber and U type frame to be connected with the pivot through the bearing rotation between the inside of U type frame, and surface fixedly connected with camera, the top of camera and the top of camera extends to one side of the hydraulic cylinder and the hydraulic cylinder of the detection case that the detection case runs through the one side of the inner chamber, and the hydraulic cylinder of the detection case is connected with one side of the movable camera.
Preferably, the bottom of the inner cavity of the driving box is fixedly connected with a sliding rod, the surface of the sliding rod is connected with a sliding sleeve in a sliding manner, and the top of the sliding sleeve is fixedly connected with the bottom of the threaded block.
Preferably, the bottom of the detection box is fixedly connected with a handle, and the surface of the handle is provided with anti-skid patterns.
Preferably, the bottom of the inner cavity of the detection box is fixedly connected with an internal element through a mounting block.
Preferably, a first clamping plate is fixedly connected to one side of the inner wall of the fixing cylinder, and the inner wall of the first clamping plate is in contact with the surface of the optical fiber connector.
Preferably, the cavity is seted up to one side of fixed section of thick bamboo inside, one side that is located the detection case top of fixed section of thick bamboo runs through there is the draw-in lever, the draw-in lever extends to the one end of fixed section of thick bamboo inner chamber and runs through the cavity and extend to the inside of fixed section of thick bamboo to the draw-in lever extends to the inside one end fixedly connected with second splint of fixed section of thick bamboo, the inner wall and the surface contact of fiber connector of second splint.
Preferably, the clamping rod is positioned at the top of the cavity inner cavity and is fixedly connected with a pressing plate, and a reset spring is fixedly connected between one side of the pressing plate and one side of the cavity inner wall.
Preferably, the surface of the detection box is fixedly connected with a display screen, and the bottom of the display screen is fixedly connected with a control button.
Preferably, the bottom of shooting case passes through gyro wheel and the top roll connection of drive case, the through-hole that cooperatees the use with the camera is seted up at the top of shooting case.
Preferably, the top of detecting the incasement wall just is located the equal fixedly connected with installation piece in both sides of fixed section of thick bamboo, the fixed section of thick bamboo is located the equal fixedly connected with U template in both sides of detecting the incasement chamber, the inside fixed connection of one side of U template through screw and installation piece.
Advantageous effects
The invention provides a detection device for an optical fiber connector. Compared with the prior art, the method has the following beneficial effects:
(1) This fiber connector detection device, the output through the motor passes through shaft coupling fixedly connected with threaded rod, and the one end that the motor was kept away from to the threaded rod passes through the bearing rotation with one side of drive box inner chamber and is connected, the surface threaded connection of threaded rod has the screw thread piece, and the top fixedly connected with drive plate of screw thread piece, the top of drive plate runs through the drive box and extends to the top of drive box, and the drive plate extends to the fixed surface of drive box top and is connected with the shooting case, the bottom fixed connection and the U type frame of shooting case inner chamber, and be connected with the pivot through the bearing rotation between the inside of U type frame, and the fixed surface of pivot has the camera, the top of camera runs through the detection case and extends to the top of detection case, one side fixedly connected with hydraulic cylinder of detection case inner chamber, and the output of hydraulic cylinder passes through the moving part and one side rotation of camera is connected, can all-round fiber connector shoots, the quality of fiber connector that can be better detects, and need detect when comparing two fiber connectors, can carry out fine regulation to the position of camera, and then can detect two fiber connector and the rear according to the actual operation that the user is convenient for compare.
(2) This fiber connector detection device has seted up the cavity through the inside one side of fixed section of thick bamboo, one side that is located the detection case top of fixed section of thick bamboo runs through there is the draw-in lever, the draw-in lever extends to the one end of fixed section of thick bamboo inner chamber and runs through the cavity and extend to the inside of fixed section of thick bamboo, and the draw-in lever extends to the inside one end fixedly connected with second splint of fixed section of thick bamboo, the inner wall and the surface contact of fiber connector of second splint, the draw-in lever is located the top fixedly connected with clamp plate of cavity inner chamber, and fixedly connected with reset spring between one side of clamp plate and one side of cavity inner wall, can fix very well to fiber connector, the quality of whole detection has been guaranteed.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the structure of the inspection box of the present invention;
FIG. 3 is a cross-sectional view of the drive housing structure of the present invention;
FIG. 4 is a cross-sectional view of the structure of the shooting box of the present invention;
FIG. 5 is a side view of the U-shaped frame structure of the present invention;
FIG. 6 is a cross-sectional view of a stationary drum structure of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6A in accordance with the present invention;
fig. 8 is an enlarged view of a portion of fig. 2B in accordance with the present invention.
In the figure: 1-detection box, 2-fixed cylinder, 3-fiber connector, 4-drive box, 5-motor, 6-threaded rod, 7-screw thread piece, 8-drive board, 9-shooting box, 10-U frame, 11-pivot, 12-camera, 13-hydraulic cylinder, 14-slide bar, 15-sliding sleeve, 16-handle, 17-inner component, 18-first splint, 19-cavity, 20-clamping bar, 21-second splint, 22-clamp plate, 23-reset spring, 24-display screen, 25-installation piece, 26-U template.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides an optical fiber connector detection device, including detection case 1, fixed cylinder 2 and optical fiber connector 3's quantity is two, the both sides at detection case 1 top communicate with the bottom of two fixed cylinders 2 respectively, the bottom of optical fiber connector 3 runs through fixed cylinder 2 and extends to the bottom of fixed cylinder 2, one side fixedly connected with driving case 4 of detection case 1 inner chamber, and the bottom of driving case 4 inner chamber is through backup pad fixedly connected with motor 5, the output of motor 5 passes through shaft coupling fixedly connected with threaded rod 6, and the one end that the threaded rod 6 kept away from motor 5 is passed through the bearing rotation with one side of driving case 4 inner chamber and is connected, threaded rod 6's surface threaded connection has screw thread piece 7, and screw thread piece 7's top fixedly connected with drive plate 8, motor 5 can drive threaded rod 6's rotation after starting, and then drive screw piece 7's rotation, under the limiting action of the slide bar 14 and the sliding sleeve 15, the thread block 7 can drive the driving plate 8 to move so as to drive the shooting box 9 to move, thus the position of the shooting box 9 can be adjusted, the position of the camera 12 can be adjusted, two optical fiber connectors 3 can be shot well, the top of the driving plate 8 penetrates through the driving box 4 and extends to the top of the driving box 4, the surface of the driving plate 8 extending to the top of the driving box 4 is fixedly connected with the shooting box 9, the bottom of the inner cavity of the shooting box 9 is fixedly connected with the U-shaped frame 10, a rotating shaft 11 is connected between the interiors of the U-shaped frame 10 through a bearing in a rotating way, the surface of the rotating shaft 11 is fixedly connected with the camera 12, the top of the camera 12 penetrates through the detecting box 1 and extends to the top of the detecting box 1, one side of the inner cavity of the detecting box 1 is fixedly connected with a hydraulic cylinder 13, the hydraulic cylinder 13 will drive the camera 12 to move after being started, because the U-shaped frame 10 is rotationally connected with the camera 12 through the rotating shaft 11, the shooting angle of the camera 12 can be adjusted, the output end of the hydraulic cylinder 13 is rotationally connected with one side of the camera 12 through a movable part, and meanwhile, the contents which are not described in detail in the specification belong to the prior art known to the person skilled in the art.
According to the invention, the bottom of the inner cavity of the driving box 4 is fixedly connected with the sliding rod 14, the surface of the sliding rod 14 is connected with the sliding sleeve 15 in a sliding manner, the top of the sliding sleeve 15 is fixedly connected with the bottom of the threaded block 7, and the sliding rod 14 and the sliding sleeve 15 can limit the movement of the threaded block 7 on the threaded rod 6.
According to the invention, the handle 16 is fixedly connected to the bottom of the detection box 1, and the anti-skidding patterns are formed on the surface of the handle 16, so that a user can grip the handle 16 for operation during use, and the stability of the handle 16 can be increased by the anti-skidding patterns.
In the invention, the bottom of the inner cavity of the detection box 1 is fixedly connected with an inner element 17 through a mounting block.
In the invention, a first clamping plate 18 is fixedly connected to one side of the inner wall of the fixed cylinder 2, and the inner wall of the first clamping plate 18 is in contact with the surface of the optical fiber connector 3.
In the invention, a cavity 19 is formed on one side of the inside of a fixed cylinder 2, a clamping rod 20 penetrates through one side of the fixed cylinder 2, which is positioned at the top of a detection box 1, one end of the clamping rod 20 extending to the inner cavity of the fixed cylinder 2 penetrates through the cavity 19 and extends to the inside of the fixed cylinder 2, one end of the clamping rod 20 extending to the inside of the fixed cylinder 2 is fixedly connected with a second clamping plate 21, the inner wall of the second clamping plate 21 is contacted with the surface of an optical fiber connector 3, rubber pads are arranged on the surfaces of the first clamping plate 18 and the second clamping plate 21, and thus the friction force of the optical fiber connector can be increased.
In the invention, the clamping rod 20 is positioned at the top of the inner cavity of the cavity 19, the pressing plate 22 is fixedly connected, the reset spring 23 is fixedly connected between one side of the pressing plate 22 and one side of the inner wall of the cavity 19, and the elastic coefficient of the reset spring 23 is determined according to actual conditions and can be replaced.
In the invention, the surface of the detection box 1 is fixedly connected with the display screen 24, the bottom of the display screen 24 is fixedly connected with the control button, and the display screen 24 can display information shot by the camera 12.
According to the invention, the bottom of the shooting box 9 is in rolling connection with the top of the driving box 4 through the rollers, the stability of the shooting box 9 when the top of the driving box 4 moves can be increased through the arrangement of the rollers, and the top of the shooting box 9 is provided with the through hole matched with the camera 12.
In the invention, the top of the inner wall of the detection box 1 is fixedly connected with the mounting blocks 25 on both sides of the fixed cylinder 2, the fixed cylinder 2 is fixedly connected with the U-shaped plate 26 on both sides of the inner cavity of the detection box 1, one side of the U-shaped plate 26 is fixedly connected with the inside of the mounting blocks 25 through screws, a user can loosen the screws between the mounting blocks 25 and the U-shaped plate 26, and then the fixed cylinder 2 is taken down from the detection box 1 for maintenance.
When in use, a user can pull the clamping rod 20 to the outside of the fixed cylinder 2, the clamping rod 20 can drive the second clamping plate 21 to move after moving, when the second clamping plate 21 moves to a proper position, the user can insert the optical fiber connector 3 into the fixed cylinder 2, after the insertion, the user starts the camera 12, the camera 12 can shoot the optical fiber connector 3, and then the quality of the optical fiber connector 3 can be intuitively observed on the display screen 24 by the user, when the optical fiber connector 3 needs to be detected at different angles, the user can start the hydraulic cylinder 13, the hydraulic cylinder 13 can drive the camera 12 to move after being started, because the U-shaped frame 10 is rotationally connected with the camera 12 through the rotating shaft 11, the shooting angle of the camera 12 can be adjusted, the camera 12 can be detected in multiple directions, when the comparison detection is needed for the two optical fiber connectors 3, a user can start the motor 5, the motor 5 can drive the threaded rod 6 to rotate after being started, the threaded block 7 is further driven to rotate, the threaded block 7 can drive the driving plate 8 to move under the limiting action of the sliding rod 14 and the sliding sleeve 15, the shooting box 9 is further driven to move, the position of the shooting box 9 can be adjusted, the position of the camera 12 is further adjusted, and the two optical fiber connectors 3 can be shot well.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an optical fiber connector detection device, includes detection case (1), fixed section of thick bamboo (2) and optical fiber connector (3), the quantity of fixed section of thick bamboo (2) and optical fiber connector (3) is two, the both sides at detection case (1) top communicate with the bottom of two fixed section of thick bamboo (2) respectively, the bottom of optical fiber connector (3) runs through fixed section of thick bamboo (2) and extends to the bottom of fixed section of thick bamboo (2), its characterized in that: one side fixedly connected with drive case (4) of detection case (1) inner chamber to the bottom of drive case (4) inner chamber is through backup pad fixedly connected with motor (5), the output of motor (5) is through shaft coupling fixedly connected with threaded rod (6), and one end that motor (5) was kept away from to threaded rod (6) is passed through the bearing rotation with one side of drive case (4) inner chamber and is connected, the surface threaded connection of threaded rod (6) has screw thread piece (7) to the top fixedly connected with drive plate (8) of screw thread piece (7), the top of drive plate (8) runs through drive case (4) and extends to the top of drive case (4), and the surface fixedly connected with shooting case (9) of drive plate (8) extension to the top of drive case (4), the bottom fixedly connected with in shooting case (9) inner chamber and U type frame (10), and be connected with pivot (11) through the bearing rotation between the inside of U type frame (10), and the surface fixedly connected with camera (12) of pivot (11), the top of camera (12) runs through detection case (1) and extends to the top of detection case (1) and the fixed hydraulic cylinder (13), and the output end of the hydraulic oil cylinder (13) is rotationally connected with one side of the camera (12) through a movable piece.
2. The optical fiber connector inspection device according to claim 1, wherein: the bottom of the inner cavity of the driving box (4) is fixedly connected with a sliding rod (14), the surface of the sliding rod (14) is connected with a sliding sleeve (15) in a sliding manner, and the top of the sliding sleeve (15) is fixedly connected with the bottom of the threaded block (7).
3. The optical fiber connector inspection device according to claim 1, wherein: the bottom of detection case (1) fixedly connected with handle (16) to the anti-skidding line has been seted up on the surface of handle (16).
4. The optical fiber connector inspection device according to claim 1, wherein: the bottom of the inner cavity of the detection box (1) is fixedly connected with an inner element (17) through a mounting block.
5. The optical fiber connector inspection device according to claim 1, wherein: a first clamping plate (18) is fixedly connected to one side of the inner wall of the fixed cylinder (2), and the inner wall of the first clamping plate (18) is in contact with the surface of the optical fiber connector (3).
6. The optical fiber connector inspection device according to claim 1, wherein: cavity (19) have been seted up to one side of fixed section of thick bamboo (2) inside, one side that is located detection case (1) top of fixed section of thick bamboo (2) runs through there is clamping rod (20), one end that clamping rod (20) extended to fixed section of thick bamboo (2) inner chamber runs through cavity (19) and extends to the inside of fixed section of thick bamboo (2) to one end fixedly connected with second splint (21) that clamping rod (20) extended to the inside of fixed section of thick bamboo (2), the inner wall of second splint (21) and the surface contact of fiber connector (3).
7. The optical fiber connector inspection device according to claim 6, wherein: the clamping rod (20) is positioned at the top of the inner cavity of the cavity (19) and fixedly connected with a pressing plate (22), and a reset spring (23) is fixedly connected between one side of the pressing plate (22) and one side of the inner wall of the cavity (19).
8. The optical fiber connector inspection device according to claim 1, wherein: the surface of the detection box (1) is fixedly connected with a display screen (24), and the bottom of the display screen (24) is fixedly connected with a control button.
9. The optical fiber connector inspection device according to claim 1, wherein: the bottom of shooting case (9) is connected with the top of driving case (4) through the gyro wheel roll, the through-hole that cooperatees with camera (12) is seted up at the top of shooting case (9).
10. The optical fiber connector inspection device according to claim 1, wherein: the top of detecting box (1) inner wall just is located the equal fixedly connected with installation piece (25) of both sides of fixed section of thick bamboo (2), the both sides that fixed section of thick bamboo (2) are located detecting box (1) inner chamber are equal fixedly connected with U template (26), the inside fixed connection of one side of U template (26) through screw and installation piece (25).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110301124.3A CN112986264B (en) | 2021-03-22 | 2021-03-22 | Optical fiber connector detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110301124.3A CN112986264B (en) | 2021-03-22 | 2021-03-22 | Optical fiber connector detection device |
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| CN112986264A CN112986264A (en) | 2021-06-18 |
| CN112986264B true CN112986264B (en) | 2023-05-23 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113708831B (en) * | 2021-08-31 | 2022-07-12 | 鹰潭市和兴光通讯器件有限公司 | Optical fiber connector quality inspection equipment before leaving factory |
| CN114034710B (en) * | 2021-11-15 | 2023-05-23 | 鹰潭市和兴光通讯器件有限公司 | Auxiliary detection device for optical fiber connector |
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Denomination of invention: A fiber optic connector detection device Effective date of registration: 20231019 Granted publication date: 20230523 Pledgee: Shangrao Bank Co.,Ltd. Xinjiang Sub branch Pledgor: YINGTAN HEXING FIBRE COMMUNICATION COMPONENTS Co.,Ltd. Registration number: Y2023980061949 |
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