CN117130117B - Butterfly-shaped compression-resistant stretch-resistant communication optical cable - Google Patents
Butterfly-shaped compression-resistant stretch-resistant communication optical cable Download PDFInfo
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- CN117130117B CN117130117B CN202311391533.2A CN202311391533A CN117130117B CN 117130117 B CN117130117 B CN 117130117B CN 202311391533 A CN202311391533 A CN 202311391533A CN 117130117 B CN117130117 B CN 117130117B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 94
- 238000007906 compression Methods 0.000 title claims abstract description 56
- 230000006835 compression Effects 0.000 title claims abstract description 54
- 238000004891 communication Methods 0.000 title claims abstract description 23
- 230000003139 buffering effect Effects 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 2
- 239000000945 filler Substances 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 31
- 239000010410 layer Substances 0.000 description 70
- 238000005452 bending Methods 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 7
- 239000007779 soft material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002674 ointment Substances 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
Classifications
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Communication Cables (AREA)
Abstract
The invention relates to the technical field of communication optical cables, in particular to a butterfly-shaped compression-resistant and stretching-resistant communication optical cable. Including the oversheath, the oversheath intussuseption is filled with the first filling layer of symmetry, the symmetry be provided with the bolster between the first filling layer, the bolster is used for the buffering the pressure that the oversheath received, the both sides of bolster all are provided with the second filling layer, be provided with the resistance to compression cover in the second filling layer, be provided with the third filling layer in the resistance to compression cover, be provided with first armor in the third filling layer, be provided with the optical cable core in the first armor, the resistance to compression cover with first armor cooperation reduces the pressure that the optical cable core received. The invention utilizes the deformation of the outer sheath and the first filling layer to play a role in buffering in the first step, and if the extrusion force is smaller, the elastic force generated by the deformation of the outer sheath and the first filling layer is enough to support the cable core, so that the cable core is prevented from being extruded and broken.
Description
Technical Field
The invention relates to the technical field of communication optical cables, in particular to a butterfly-shaped compression-resistant and stretching-resistant communication optical cable.
Background
The communication optical cable is composed of a cable core and an outer protective layer, and the main difference between the communication optical cable and the cable is that the optical cable is required to be provided with a reinforcing member to bear external mechanical load to protect the cable core.
The existing communication optical cable only wraps one side of the protective coating on the outer side, and the protective structure is simple and can not effectively resist pressure, so that after the communication optical cable is extruded by external force, the cable core is damaged, and further attenuation of optical signals can be caused, and signal quality is poor and even transmission is impossible.
Aiming at the defect of poor pressure resistance of the existing communication optical cable, the development of a butterfly-shaped pressure-resistant and stretching-resistant communication optical cable is needed.
Disclosure of Invention
In order to overcome the defects that the existing communication optical cable is only wrapped with a protective coating on one side, and the protective structure is simple and can not effectively resist pressure, so that when the communication optical cable is extruded by external force, the cable core is damaged, further optical signals are attenuated, and the signal quality is poor or even the transmission is impossible, the invention provides the butterfly-shaped compression-resistant stretch-resistant communication optical cable.
The technical scheme of the invention is as follows: the utility model provides a butterfly resistance to compression stretch-proofing communication optical cable, includes the oversheath, the oversheath intussuseption is filled with the first filling layer of symmetry, the symmetry be provided with the bolster between the first filling layer, the bolster is used for buffering the pressure that the oversheath received, the both sides of bolster all are provided with the second filling layer, be provided with the resistance to compression cover in the second filling layer, be provided with the third filling layer in the resistance to compression cover, be provided with first armor in the third filling layer, be provided with the optical cable core in the first armor, the resistance to compression cover is used for the protection in the optical cable core in the first armor, the resistance to compression cover with first armor cooperation reduces the pressure that the optical cable core received.
Preferably, the buffer member is arranged in a horizontal 8 shape, and two sides of the buffer member are provided with gaps, and the buffer member is a complete closed loop for reducing local stress of the buffer member.
Preferably, the compression-resistant sleeve is made of triangular metal materials and is used for increasing the compression resistance of the compression-resistant sleeve.
Preferably, the first filling layer and the second filling layer are both made of elastic materials and are used for damping the optical cable core.
Preferably, the third filling layer is made of composite fiber, and is used for maintaining a gap between the compression-resistant sleeve and the first armor layer and improving the strength of the compression-resistant sleeve.
Preferably, the first armor layer is provided as a metal bellows.
Preferably, the buffer part is characterized by further comprising symmetrically distributed steel belts, wherein the symmetrically distributed steel belts are fixedly connected to two sides of the buffer part respectively, and the steel belts are arranged in an arc shape.
Preferably, the steel strip is provided with a first filling layer, the first filling layer is positioned between the buffer piece and the steel strip, the first filling layer is made of elastic materials, and a reinforcing piece is arranged in the first filling layer.
Preferably, the cable further comprises a second armor layer, the second armor layer is arranged in the middle of the first armor layer, the central axes of the first armor layer and the second armor layer are mutually overlapped, and lantern rings which are distributed at equal intervals are fixedly connected between the cable cores and the second armor layer.
Preferably, soft materials are filled between the adjacent lantern rings and used for protecting the optical cable cores.
The beneficial effects of the invention are as follows:
1. the outer sheath and the deformation of the first filling layer play a first step of buffering effect, if the extrusion force is small, the elastic force generated by the deformation of the outer sheath and the deformation of the first filling layer is enough to support, so that the cable core of the optical cable is prevented from being extruded and broken, and the performance and the transmission quality of the optical cable are adversely affected.
2. The buffer piece is wholly capable of distributing extrusion force, so that the force is uniformly distributed in the buffer piece, the force is effectively dispersed along the arc direction, the concentration degree of local stress is reduced, the compression resistance is improved, and the overall stability is enhanced.
3. When the buffer piece is deformed, the two second filling layers are deformed synchronously, and vibration generated by extrusion can be reduced by the first filling layers and the second filling layers and transmitted to the optical cable core, so that the optical cable core can effectively and stably transmit signals.
4. The compressive sleeve is set to be of a triangle stable structure, and can still keep a stable state after being subjected to extrusion force, so that extrusion force is prevented from acting on two optical cable cores, and the optical cable cores are damaged and can not effectively transmit signals.
5. The first armor layer is arranged as the corrugated pipe and improves the bending resistance of the optical cable under the joint action of the first armor layer and the compression-resistant sleeve, so that the optical cable is prevented from being broken and damaged due to the fact that the bending angle of the optical cable exceeds the bending maximum bending radius of the optical cable.
6. The two steel belts and the two reinforcing members share most of traction force, so that the stretching resistance of the optical cable is improved, and the cable core is prevented from being broken and damaged due to the stretching force of the optical cable.
7. The soft material between the adjacent lantern rings is ointment, so that the anti-seismic and waterproof capabilities of the optical cable are improved, and the service life of the optical cable is prolonged.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic top perspective view of the present invention;
FIG. 3 is a schematic perspective view of a cushioning member and compression sleeve of the present invention;
FIG. 4 is a schematic perspective view of a buffer and steel strip of the present invention;
fig. 5 is a schematic perspective view of a first armor and a second armor of the present invention;
fig. 6 is a schematic cross-sectional perspective view of a first armor and collar of the present invention.
Reference numerals illustrate: 1-an outer sheath, 2-a first filling layer, 3-a buffer part, 4-a second filling layer, 5-a compression-resistant sleeve, 6-a third filling layer, 7-a first armor layer, 8-an optical cable core, 9-a steel belt, 10-a fourth filling layer, 11-a reinforcing part, 12-a second armor layer and 13-a sleeve ring.
Description of the embodiments
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1: a butterfly compression-resistant and stretching-resistant communication optical cable, as shown in figures 1-3, comprises an outer sheath 1, wherein the outer side of the outer sheath 1 is provided with an anti-corrosion and waterproof coating layer for prolonging the service life of the optical cable, two symmetrical first filling layers 2 are filled in the outer sheath 1, a buffer piece 3 is arranged between the two symmetrical first filling layers 2, the buffer piece 3 is used for buffering the extrusion force received by the optical cable, the buffer piece 3 is arranged in a transverse 8 shape, two sides of the buffer piece 3 are provided with gaps, the buffer piece 3 is a complete closed loop for reducing the local stress of the buffer piece 3, the buffer piece 3 can buffer the extrusion forces in multiple directions, no matter the side of the buffer piece 3 is stressed, the buffer piece 3 can distribute the stress, the extrusion resistance of the buffer piece 3 is improved, the compression resistance of the optical cable is improved, two sides of the buffer piece 3 are provided with second filling layers 4, the second filling layer 4 is internally provided with a compression-resistant sleeve 5, the compression-resistant sleeve 5 is made of triangular metal materials and is used for increasing the compression resistance of the compression-resistant sleeve 5, the compression-resistant sleeve 5 has self triangular stability and prevents the compression-resistant sleeve 5 from being deformed by extrusion, the compression-resistant sleeve 5 is internally provided with a third filling layer 6, the third filling layer 6 is made of composite fiber materials and is used for keeping the gap between the compression-resistant sleeve 5 and the first armor layer 7, the third filling layer 6 is used for improving the stability of the compression-resistant sleeve 5 and the first armor layer 7 and improving the strength of the compression-resistant sleeve 5, the third filling layer 6 is internally provided with a first armor layer 7, the first armor layer 7 is provided with a metal corrugated pipe, the first armor layer 7 is used for improving the bending resistance of the optical cable core 8, the first filling layer 2 and the second filling layer 4 are both made of elastic materials, the anti-compression sleeve 5 is used for protecting the optical cable core 8 in the first armor layer 7, the anti-compression sleeve 5 is matched with the first armor layer 7, the pressure born by the optical cable core 8 is reduced, and the deformation resistance and bending resistance of the optical cable are improved.
When this optical cable receives the extrusion force of vertical direction, at first oversheath 1 and first filling layer 2 receive extrusion deformation, oversheath 1 and first filling layer 2 deformation play the cushioning effect of first step, if the extrusion force is less, with the elasticity that oversheath 1 and first filling layer 2 deformation produced is enough to support, prevents that optical cable core 8 from receiving extrusion rupture, produces adverse effect to the performance and the transmission quality of optical cable.
When pressure acts on this optical cable perpendicularly, pressure is transmitted to buffer 3 through first filling layer 2, buffer 3 receives the extrusion to take place to warp once more to the extrusion force, buffer 3 sets up to horizontal "8" font closed loop, no matter what limit of this optical cable is acted on to pressure, buffer 3 wholly homoenergetic is shared the extrusion force, make the power evenly distributed in buffer 3, disperse the power along the pitch arc direction effectively, the concentrated degree of local atress has been reduced, the compressive capacity has improved holistic stability, when buffer 3 takes place to warp, two second filling layers 4 take place deformation in step, first filling layer 2 and second filling layer 4 can also reduce the vibrations transmission to optical cable core 8 that the extrusion produced, make optical cable core 8 can effective stable transmission signal.
When extrusion force exceeds the scope that oversheath 1, first filling layer 2, bolster 3 and second filling layer 4 supported, under oversheath 1, first filling layer 2, bolster 3 and second filling layer 4 cooperation, cushion extrusion force, reduce the extrusion force of being used in two resistance to compression covers 5, resistance to compression cover 5 sets up to triangle-shaped stable structure, still can keep steady state after resistance to compression cover 5 receives the extrusion force, avoid extrusion force to act on two optical cable cores 8, lead to optical cable core 8 damage can not effectual transmission signal.
Under the joint protection of the compression-resistant sleeve 5 and the first armor layer 7, the fact that the optical cable core 8 cannot break when the optical cable is subjected to certain extrusion force is guaranteed, the optical cable core 8 is kept to effectively transmit signals, the first armor layer 7 is arranged to be a corrugated pipe, and the bending-resistant capability of the optical cable is improved under the joint cooperation with the compression-resistant sleeve 5, and the fact that the bending angle of the optical cable exceeds the bending maximum bending radius of the optical cable is avoided, so that the optical cable core 8 is broken and damaged is avoided.
Example 2: on the basis of embodiment 1, as shown in fig. 2 and 4, the device further comprises two symmetrically distributed steel belts 9, wherein the two symmetrically distributed steel belts 9 are fixedly connected to the upper side and the lower side of the buffer member 3 respectively, the buffer member 3 is matched with the two steel belts 9 to buffer extrusion force, the steel belts 9 are arc-shaped, and the arc-shaped steel belts 9 have higher yield strength and tensile strength, so that the steel belts 9 can bear larger external force and have good bending resistance.
As shown in fig. 2, the optical cable further comprises a fourth filling layer 10, the fourth filling layer 10 is located between the buffer member 3 and the steel belt 9, the fourth filling layer 10 is made of elastic materials, vibration is reduced and transmitted to the optical cable core 8, a reinforcing member 11 is arranged in the fourth filling layer 10, the reinforcing member 11 is arranged as a steel wire rope, and the tensile resistance of the optical cable is improved, so that breakage of the optical cable is avoided when the optical cable is stretched.
When this optical cable receives the extrusion force, the extrusion force is acted on two steel bands 9 simultaneously, two steel bands 9 receive the extrusion and take place deformation, steel band 9 takes place deformation and extrusion bolster 3, bolster 3 and two steel bands 9 cooperation, cushion the extrusion force, two steel bands 9 set up to the arc simultaneously, curved steel band 9 has higher yield strength and tensile strength, make steel band 9 can bear great external force and good bending resistance ability, and then the bending resistance ability of this optical cable has been improved, two reinforcement 11 in this optical cable keep relative distance under the effect of fourth filling layer 10, when this optical cable receives the traction force, the traction force of most is shared to two steel bands 9 and two reinforcement 11, the stretch resistance of this optical cable has been improved, avoid this optical cable to draw the power to lead to the optical cable core 8 to take place the fracture and damage.
Example 3: on the basis of embodiment 2, as shown in fig. 6, still including second armor 12, second armor 12 sets up in the middle part of first armor 7, second armor 12 parcel cable core 8, further protect cable core 8, the central axis of first armor 7 and second armor 12 coincide each other, the rigid coupling has equidistant lantern ring 13 of distribution between cable core 8 and the second armor 12, lantern ring 13 is used for fixed spacing to cable core 8, it has soft material to fill between the adjacent lantern ring 13, soft material is the oleamen, be used for protecting cable core 8, the antidetonation and waterproof ability of this optical cable has been improved, the life of this optical cable has been prolonged.
The second armor layer 12 wraps the outer side of the optical cable core 8, the optical cable core 8 is protected finally, damage of the optical cable when the optical cable is subjected to extrusion force is reduced, meanwhile, soft materials between adjacent lantern rings 13 are ointment, the anti-seismic and waterproof capacity of the optical cable is improved, and the service life of the optical cable is prolonged.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (6)
1. The butterfly-shaped compression-resistant and stretch-resistant communication optical cable is characterized by comprising an outer sheath (1), wherein symmetrical first filling layers (2) are filled in the outer sheath (1), a buffer piece (3) is arranged between the symmetrical first filling layers (2), the buffer piece (3) is used for buffering the pressure born by the outer sheath (1), second filling layers (4) are arranged on two sides of the buffer piece (3), a compression-resistant sleeve (5) is arranged in the second filling layers (4), a third filling layer (6) is arranged in the compression-resistant sleeve (5), a first armor layer (7) is arranged in the third filling layer (6), an optical cable core (8) is arranged in the first armor layer (7), the compression-resistant sleeve (5) is used for protecting the optical cable core (8) in the first armor layer (7), and the compression-resistant sleeve (5) is matched with the first armor layer (7) to reduce the pressure born by the optical cable core (8);
the buffer piece (3) is arranged in a transverse 8 shape, gaps are formed in two sides of the buffer piece (3), and the buffer piece (3) is a complete closed loop and is used for reducing local stress of the buffer piece (3);
the compression-resistant sleeve (5) is made of triangular metal materials and is used for increasing the compression-resistant capacity of the compression-resistant sleeve (5);
the first armor layer (7) is arranged as a metal corrugated pipe;
the steel belt (9) is symmetrically distributed, the symmetrically distributed steel belts (9) are fixedly connected to two sides of the buffer piece (3) respectively, and the steel belts (9) are arranged in an arc shape.
2. The butterfly-shaped compression-resistant and stretching-resistant communication optical cable according to claim 1, wherein the first filling layer (2) and the second filling layer (4) are made of elastic materials and are used for damping the optical cable core (8).
3. A butterfly compression and stretch resistant communication cable according to claim 1, wherein the third filler layer (6) is provided as a composite fibre material for maintaining a gap between the compression jacket (5) and the first armor layer (7) and increasing the strength of the compression jacket (5).
4. The butterfly-shaped compression-resistant and stretching-resistant communication optical cable according to claim 1, further comprising a fourth filling layer (10), wherein the fourth filling layer (10) is located between the buffer member (3) and the steel belt (9), the fourth filling layer (10) is made of elastic materials, and a reinforcing member (11) is arranged in the fourth filling layer (10).
5. The butterfly-shaped compression-resistant and stretching-resistant communication optical cable according to claim 1, further comprising a second armor layer (12), wherein the second armor layer (12) is arranged in the middle of the first armor layer (7), the central axes of the first armor layer (7) and the second armor layer (12) are mutually overlapped, and a lantern ring (13) which is distributed at equal intervals is fixedly connected between the optical cable core (8) and the second armor layer (12).
6. A butterfly-shaped compression-resistant stretch-resistant communication cable according to claim 5, wherein flexible material is filled between adjacent collars (13) for protecting the cable core (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311391533.2A CN117130117B (en) | 2023-10-25 | 2023-10-25 | Butterfly-shaped compression-resistant stretch-resistant communication optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311391533.2A CN117130117B (en) | 2023-10-25 | 2023-10-25 | Butterfly-shaped compression-resistant stretch-resistant communication optical cable |
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| Publication Number | Publication Date |
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| CN117130117A CN117130117A (en) | 2023-11-28 |
| CN117130117B true CN117130117B (en) | 2024-01-19 |
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| CN206758163U (en) * | 2017-06-08 | 2017-12-15 | 吕涛 | A kind of cable of hydraulic engineering |
| CN107785111A (en) * | 2017-09-30 | 2018-03-09 | 方涌东 | A kind of environment-friendly cable |
| CN207624432U (en) * | 2017-12-01 | 2018-07-17 | 上海电缆厂集团有限公司 | A kind of bellows armored cable |
| CN208969306U (en) * | 2018-10-15 | 2019-06-11 | 河北鸿宇通信器材有限公司 | Non-metallic optical fiber cables hook |
| CN209118810U (en) * | 2018-11-27 | 2019-07-16 | 山东新鲁星电缆有限公司 | A kind of cable with stronger compressive resistance |
| CN211427878U (en) * | 2019-07-31 | 2020-09-04 | 苏州美昱高分子材料有限公司 | Light high-strength PVC cable |
| CN110908051A (en) * | 2019-11-21 | 2020-03-24 | 杭州富通通信技术股份有限公司 | Optical cable |
| CN211293387U (en) * | 2019-11-29 | 2020-08-18 | 江苏南方天宏通信科技有限公司 | 8-shaped self-supporting optical cable |
| CN214377772U (en) * | 2021-03-17 | 2021-10-08 | 天长市润业电缆科技有限公司 | Medium-voltage fireproof power cable |
| CN113674905A (en) * | 2021-07-21 | 2021-11-19 | 丁卫阳 | High temperature resistant variable frequency cable with prevent sheath spare |
| CN215680228U (en) * | 2021-09-30 | 2022-01-28 | 浙江中兴电缆有限公司 | Mechanical impact resistant three-core fire-resistant power cable |
| CN114200610A (en) * | 2021-12-20 | 2022-03-18 | 南京华信藤仓光通信有限公司 | Retractable optical cable for underwater exploration |
| CN114914030A (en) * | 2022-05-31 | 2022-08-16 | 富通集团（嘉善）通信技术有限公司 | Buried optical cable |
| CN115166917A (en) * | 2022-06-24 | 2022-10-11 | 广东中天科技光缆有限公司 | Optical cable |
| CN116844771A (en) * | 2023-07-21 | 2023-10-03 | 江苏俊知技术有限公司 | Corrugated pipe armoured flexible cable for ultra-soft communication power supply and manufacturing method |
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| CN117130117A (en) | 2023-11-28 |
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