CN219609301U - Protection device for optical fiber is drawn forth to wisdom muscle material - Google Patents
Protection device for optical fiber is drawn forth to wisdom muscle material Download PDFInfo
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- CN219609301U CN219609301U CN202320164639.8U CN202320164639U CN219609301U CN 219609301 U CN219609301 U CN 219609301U CN 202320164639 U CN202320164639 U CN 202320164639U CN 219609301 U CN219609301 U CN 219609301U
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- 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
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Abstract
The utility model relates to a protection device for leading out optical fibers from smart ribs, which relates to the technical field of optical fiber protection, and comprises a sheath structure and a horn-shaped connector, wherein the sheath structure is arranged at the front end of the smart ribs, the sheath structure comprises an optical fiber sheath I and an optical fiber sheath II, the optical fiber sheath I is a capillary rubber tube, the optical fiber sheath II is a steel wire with a single-spiral structure, the optical fiber sheath II is wound and wrapped on the outer surface of the optical fiber sheath I, the small end of the horn-shaped connector is fixedly connected with the sheath structure, the large end of the horn-shaped connector is extended with a straight cylinder part, the smart ribs are inserted into the straight cylinder part and are in clamping connection with the straight cylinder part, and the leading-out optical fibers are arranged in the protection device in a penetrating way; the horn-shaped connector effectively prevents the phenomenon that the section mutation exists at the position where the intelligent reinforcement material is led out of the optical fiber, so that the stress concentration is caused, and the reduction of the optical fiber strength is avoided.
Description
Technical Field
The utility model relates to the technical field of optical fiber protection, in particular to a protection device for an intelligent reinforcement leading-out optical fiber.
Background
The inhaul cable is used as a main stress part of a cable-stayed bridge and consists of tens of high-strength steel wires or even hundreds of high-strength steel wires. Under the repeated action of alternating stress below the tensile strength limit, the dual action of fatigue and corrosion can lead to the occurrence of broken wires of part of steel wires, the bearing capacity is reduced until the stay cable fails, and the potential safety hazard of burying the bridge is realized. Therefore, real-time monitoring and detection of the inhaul cable bridge are necessary.
Common cable force detection methods include a manometer cable force measurement method, a pressure sensor measurement method, a frequency cable force measurement method and the like. The cable force detection methods can only measure the cable force of the whole cable of the cable, but cannot reflect the actual health condition of the cable wire, and have certain limitation in use. The application of the fiber grating sensor effectively solves the problem of limitation, and the method for applying the fiber grating sensor in the inhaul cable is to embed or paste the fiber grating sensor on a certain high-strength steel wire forming the inhaul cable to form the intelligent reinforcement material. Therefore, the importance of the smart tendon is self-evident.
In the smart rib, the optical fiber is one of the most important components for smart rib, and the optical fiber is very fragile and easy to break, so that the protection of the optical fiber on the lead-out part of the smart rib is very important.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a protection device for an intelligent reinforcement leading-out optical fiber, so as to solve the problem that the leading-out optical fiber is easy to break in the prior art.
The technical scheme for solving the technical problems is that the protection device for the intelligent reinforcement leading-out optical fiber comprises a sheath structure arranged at the front end of the intelligent reinforcement, wherein the sheath structure comprises an optical fiber sheath I and an optical fiber sheath II, the optical fiber sheath I is a capillary rubber tube, the optical fiber sheath II is a steel wire with a single-spiral structure, the optical fiber sheath II is wound and wrapped on the outer surface of the optical fiber sheath I, and leading-out optical fibers outside the intelligent reinforcement are exposed and are arranged in the sheath structure in a penetrating mode.
The utility model further adopts the technical scheme that: the optical fiber sheath I is one of an ethylene propylene diene monomer rubber tube, a chlorosulfonated polyethylene rubber tube, a chloroether rubber tube and a pvf plastic tube.
The utility model further adopts the technical scheme that: the optical fiber sheath II is one of a copper plated steel wire, a galvanized steel wire, an aluminized steel wire and a flat steel wire.
The utility model further adopts the technical scheme that: the spiral distance of the optical fiber sheath II is less than or equal to 0.2mm.
The utility model further adopts the technical scheme that: the sheath structure also comprises a sheath protection wire, and the sheath protection wire is wrapped on the outer surface of the optical fiber sheath II.
The utility model further adopts the technical scheme that: the sheath structure also comprises an optical fiber sheath III sleeved on the outer surface of the sheath protection wire, wherein the optical fiber sheath III is a rubber sleeve or a pvf plastic sleeve.
The utility model further adopts the technical scheme that: the outer surface of the optical fiber sheath III is coated with fireproof heat-insulating paint.
The utility model further adopts the technical scheme that: the protection device further comprises a horn-shaped connector, the small end of the horn-shaped connector is fixedly connected with the sheath structure, the large end of the horn-shaped connector extends to form a straight cylinder portion, and the intelligent reinforcement material is inserted into the straight cylinder portion and is in clamping connection with the straight cylinder portion.
The utility model further adopts the technical scheme that: the horn-shaped joint is an aluminum horn-shaped joint.
The utility model further adopts the technical scheme that: the inner surface of the straight barrel part of the horn-shaped joint is coated with metal adhesive.
Due to the adoption of the structure, the protection device for the intelligent reinforcement leading-out optical fiber has the following beneficial effects compared with the prior art:
1. the lead-out optical fiber is not easy to break
The utility model comprises a capillary rubber tube and a single-spiral structure steel wire wound and wrapped on the outer surface of the capillary rubber tube, wherein the outgoing optical fiber is arranged in the capillary rubber tube in a penetrating way, the capillary rubber tube and the single-spiral structure steel wire have good toughness and linearity, and the outgoing optical fiber is protected, so that the outgoing optical fiber can maintain good linearity and toughness under the condition that the diameter of the outgoing optical fiber is extremely tiny, is not easy to break, and meets the requirements of a inhaul cable detection monitoring installation process;
the optical fiber sheath I is an ethylene propylene diene monomer rubber tube, a chlorosulfonated polyethylene rubber tube, a chlorohydrin rubber tube or a pvf plastic tube, so that the outgoing optical fiber has good toughness and linearity; the optical fiber sheath II is a copper-plated steel wire, a galvanized steel wire, an aluminum-plated steel wire or a flat steel wire, the steel wires have good toughness and ductility, the spiral distance of the optical fiber sheath II is smaller than or equal to 0.2mm, the optical fiber sheath II further has good toughness and ductility, in the construction process of the intelligent reinforcement material, the outgoing optical fiber is often bent at a large angle, the outgoing optical fiber is not broken when being bent at a large angle or even folded in half, and the intelligent reinforcement material can adapt to various working conditions; the sheath protecting wire is wrapped on the outer surface of the optical fiber sheath II, so that the sheath structure has better shock resistance and the toughness of the sheath structure is enhanced; further, the optical fiber sheath III is a rubber sheath or a pvf plastic sheath, the rubber sheath is elastic at room temperature, can generate larger deformation under the action of small external force, can recover after the external force is removed, has high elasticity, breaking strength and elongation, and pvf plastic also has high toughness;
therefore, the optical fiber sheath I, the optical fiber sheath II, the sheath protecting wire and the optical fiber sheath III enable the sheath structure to have good toughness, the bending resistance is greatly enhanced, and the outgoing optical fiber penetrating through the capillary tube is not easy to break.
2. Long service life
The optical fiber sheath I is an ethylene propylene diene monomer rubber tube, a chlorosulfonated polyethylene rubber tube, a chlorohydrin rubber tube or a pvf plastic tube, the rubber tube or the plastic tube has excellent heat resistance, steam resistance, weather resistance, chemical corrosion resistance and excellent electrical insulation performance, the optical fiber sheath III is a rubber sleeve or pvf plastic sleeve, the rubber sleeve has excellent wear resistance, high breaking strength and elongation, the pvf plastic sleeve also has a crystal structure, high transparency (ultraviolet ray transmission), high electrical insulation performance, excellent chemical resistance, ageing resistance and corrosion resistance, and the outer surface of the optical fiber sheath III is coated with fireproof heat insulation paint, so that the durability of the sheath structure is further enhanced, the service life of the sheath structure is prolonged, and the extracted optical fiber has excellent corrosion resistance, ageing resistance and longer service life.
3. Firm in connection
The inner surface of the straight barrel part of the aluminum horn-shaped joint is coated with a strong metal adhesive, when the aluminum horn-shaped joint is connected with the intelligent rib, the aluminum horn-shaped joint is preliminarily connected with the intelligent rib through the strong metal adhesive, and then the straight barrel part of the aluminum horn-shaped joint is clamped with the intelligent rib by using a clamp, so that the connection effect is further enhanced.
4. The aluminum horn-shaped connector effectively prevents the phenomenon that the section of the intelligent reinforcement material led out of the optical fiber is suddenly changed, so that the stress concentration is obvious, and the strength of the optical fiber is prevented from being reduced.
5. The utility model has simple structure and low cost, overcomes the defects of high brittleness and low shearing resistance of the optical fiber material, effectively protects the fragile part of the intelligent reinforcement material, and can be widely applied to projects such as bridge guy cables, suspenders, prestressed tendons and the like.
Drawings
FIG. 1 is a schematic diagram of a protection device for an intelligent fiber optic cable according to an embodiment;
FIG. 2 is a left side view of a smart bar pigtail fiber protection device according to one embodiment;
in the figure:
1-sheath structure, 11-optical fiber sheath I, 12-optical fiber sheath II, 13-sheath protection wire, 14-optical fiber sheath III, 2-horn-shaped connector, 21-straight barrel part, 3-outgoing optical fiber and 4-intelligent rib material.
Detailed Description
Example 1
As shown in fig. 1-2, a protection device for leading out optical fibers from smart ribs comprises a sheath structure 1 and a horn-shaped connector 2, wherein the sheath structure 1 is sequentially provided with an optical fiber sheath I11, an optical fiber sheath II 12, a sheath protecting wire 13 and an optical fiber sheath III 14 from an inner layer to an outer layer;
the optical fiber sheath I11 is a capillary rubber tube, and the capillary rubber tube is one of an ethylene propylene diene monomer rubber tube, a chlorosulfonated polyethylene rubber tube, a chlorohydrin rubber tube and a pvf plastic tube, and the outgoing optical fiber 3 exposed outside the body of the intelligent reinforcement material 4 is arranged in the optical fiber sheath I11 in a penetrating way, so that the outgoing optical fiber has good corrosion resistance and aging resistance and good toughness and straightness; the optical fiber sheath II 12 is a steel wire with a single spiral structure, the optical fiber sheath II 12 is one of a round copper plated steel wire, a round galvanized steel wire, a round aluminum plated steel wire and a round flat steel wire, the optical fiber sheath II 12 is spirally wound on the outer surface of the optical fiber sheath I11, and the spiral distance is less than or equal to 0.2mm, so that the lead-out optical fiber is not broken when being bent at a larger angle or even folded in half, and the intelligent rib can adapt to various working conditions; the sheath protecting wire 13 is made of aluminum fibers and aramid fibers, and the sheath protecting wire 13 is wrapped on the outer surface of the optical fiber sheath II 12, so that the sheath structure 1 has better shock resistance and the toughness of the sheath structure 1 is further enhanced; the optical fiber sheath III 14 is a rubber sleeve or a pvf plastic sleeve, the outer surface of the optical fiber sheath III 14 is coated with fireproof heat-insulating paint, and the optical fiber sheath III 14 is sleeved on the outer surface of the sheath protection wire 13; the multi-layer structure protects the outgoing optical fiber 3, so that the outgoing optical fiber 3 keeps good linearity and toughness under the condition of extremely small diameter and is not easy to break;
the horn joint 2 is an aluminum horn joint, the small end of the horn joint 2 is fixedly connected with the sheath structure 1, a straight barrel part 21 is extended from the large end of the horn joint 2, a strong metal adhesive is coated on the inner surface of the straight barrel part 21, when the horn joint is connected with the intelligent reinforcement material 4, the horn joint 2 is preliminarily connected with the intelligent reinforcement material 4 through the strong metal adhesive, and then the straight barrel part 21 of the horn joint 2 is clamped and connected with the intelligent reinforcement material 4 through a clamp, so that the connection effect is further enhanced, the phenomenon that the section mutation is caused at the position where the intelligent reinforcement material is led out of an optical fiber, and the stress concentration is obvious is effectively prevented, and the reduction of the optical fiber strength is avoided;
the outgoing optical fiber 3 is a plastic optical fiber or a glass fiber optical fiber, the outer surface of the outgoing optical fiber 3 is coated with optical fiber protective coating and epoxy resin, the optical fiber protective coating is favorable for enhancing the toughness of the optical fiber, and the epoxy resin has excellent paint film adhesive force, so that the adhesive force of the outgoing optical fiber 3 to a sheath structure can be greatly improved, meanwhile, the outgoing optical fiber has good heat resistance and electrical insulation, the toughness of the outgoing optical fiber is further enhanced, and further, the optical fiber is prevented from being broken in the processes of transportation, installation, use and the like.
The utility model relates to a manufacturing method of a protection device for an intelligent reinforcement material lead-out optical fiber, which comprises the following steps:
1. selecting an optical fiber material, selecting a plastic optical fiber or a glass fiber optical fiber according to the environment of the inhaul cable, and coating an optical fiber protective coating on the surface of the optical fiber after selecting the optical fiber, thereby preventing the optical fiber from breaking during transportation, installation and the like;
2. according to engineering environment, ethylene propylene diene monomer rubber, chlorosulfonated polyethylene rubber, chlorohydrin rubber or pvf plastic is selected as a material of an optical fiber sheath I, the optical fiber sheath I is manufactured, firstly, the surface of an optical fiber is coated with epoxy resin, and then an outgoing optical fiber is embedded into the optical fiber sheath I;
3. firstly, selecting a round copper plated steel wire, a galvanized steel wire, an aluminum plated steel wire or a flat steel wire as a material of an optical fiber sheath II according to engineering environment, manufacturing the optical fiber sheath II, and then, winding the optical fiber sheath II on the optical fiber sheath I in a single spiral way, wherein the spiral distance is not more than 0.2mm;
4. firstly, selecting aluminum fibers and aramid fibers according to a proportion to initially prepare sheath protecting wires, and then wrapping an optical fiber sheath II by single-layer wrapping of the sheath protecting wires;
5. according to different heights of the intelligent ribs, selecting rubber (the height of the intelligent ribs is lower) or pvf plastic (the height of the intelligent ribs is higher) as a material of an optical fiber sheath III, extruding the material to prepare the optical fiber sheath III, coating fireproof heat-insulating paint on the outer surface of the optical fiber sheath III, and sleeving the fireproof heat-insulating paint on the outer surface of a sheath protection wire;
6. welding the small end of the horn-shaped joint with the sheath structure;
7. the intelligent rib material is connected with the leading-out optical fiber protection device, the strong metal adhesive is coated on the inner surface of the straight barrel part of the horn-shaped joint, the intelligent rib material is inserted into the straight barrel part of the horn-shaped joint, and the straight barrel part and the intelligent rib material are further clamped by the clamp to complete connection.
Claims (10)
1. The protection device for the optical fiber led out of the intelligent rib material is characterized by comprising a sheath structure (1) arranged at the front end of the intelligent rib material (4), wherein the sheath structure (1) comprises an optical fiber sheath I (11) and an optical fiber sheath II (12), the optical fiber sheath I (11) is a capillary rubber tube, the optical fiber sheath II (12) is a steel wire with a single spiral structure, the optical fiber sheath II (12) is wound and wrapped on the outer surface of the optical fiber sheath I (11), and led-out optical fibers (3) outside the intelligent rib material (4) are exposed out of the optical fiber sheath I and are arranged in the sheath structure (1) in a penetrating mode.
2. The protection device for the intelligent reinforcement led-out optical fiber according to claim 1, wherein the optical fiber sheath I (11) is one of an ethylene propylene diene monomer rubber tube, a chlorosulfonated polyethylene rubber tube, a chloroether rubber tube and a pvf plastic tube.
3. The protection device for the intelligent reinforcement-bar-drawn optical fiber according to claim 1, wherein the optical fiber sheath II (12) is one of a copper-plated steel wire, a zinc-plated steel wire, an aluminum-plated steel wire and a flat steel wire.
4. The device for protecting an intelligent bar-drawn optical fiber according to claim 1, wherein the spiral pitch of the optical fiber sheath II (12) is 0.2mm or less.
5. The protection device for the smart tendon-led-out optical fiber according to claim 1, wherein the sheath structure (1) further comprises a sheath protection wire (13), and the sheath protection wire (13) is wrapped on the outer surface of the optical fiber sheath II (12).
6. The protection device for the smart tendon led-out optical fiber according to claim 5, wherein the sheath structure (1) further comprises an optical fiber sheath III (14) sleeved on the outer surface of the sheath protecting wire (13), and the optical fiber sheath III (14) is a rubber sleeve or a pvf plastic sleeve.
7. The protection device for an intelligent bar-drawn optical fiber according to claim 6, wherein the outer surface of the optical fiber sheath III (14) is coated with a fireproof heat-insulating coating.
8. The device for protecting an optical fiber from a smart rib according to claim 1, further comprising a horn-shaped connector (2), wherein a small end of the horn-shaped connector (2) is fixedly connected with the sheath structure (1), a cylindrical portion (21) is extended from a large end of the horn-shaped connector (2), and the smart rib (4) is inserted into the cylindrical portion (21) and is clamped and connected with the cylindrical portion.
9. The device for protecting an intelligent fiber reinforced plastic extraction fiber according to claim 8, wherein said horn connector (2) is an aluminum horn connector.
10. The protection device for the smart bar-drawn optical fiber according to claim 8, wherein the inner surface of the straight tube portion of the horn-shaped joint (2) is coated with a metal adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320164639.8U CN219609301U (en) | 2023-02-02 | 2023-02-02 | Protection device for optical fiber is drawn forth to wisdom muscle material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320164639.8U CN219609301U (en) | 2023-02-02 | 2023-02-02 | Protection device for optical fiber is drawn forth to wisdom muscle material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219609301U true CN219609301U (en) | 2023-08-29 |
Family
ID=87743329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320164639.8U Active CN219609301U (en) | 2023-02-02 | 2023-02-02 | Protection device for optical fiber is drawn forth to wisdom muscle material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219609301U (en) |
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2023
- 2023-02-02 CN CN202320164639.8U patent/CN219609301U/en active Active
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