Intelligent cable and signal line storage protective cover thereof

Abstract

The utility model discloses an intelligent cable and signal line storage protection cover thereof, and the signal line storage protection cover comprises a shell and a winding table. The shell has a containing cavity, and the shell is provided with a wire outlet hole communicating with the containing cavity. The winding table is arranged in the containing cavity, and the end face of the winding table away from the inner wall of the shell is provided with a containing groove for storing a fiber grating optical splitter. The side wall of the winding table is used for winding the signal line, and finally the signal line is pulled out from the wire outlet hole. The above-mentioned intelligent cable and signal line storage protection cover thereof, the fiber grating optical splitter is specially stored by the containing groove, and the signal line is wound on the side wall of the winding sleeve with a large curvature radius. Finally, the signal line is pulled out from the wire outlet hole, and the signal line will not be abraded with the sealing plate, and the small curvature radius also prevents the transmission quality of the fiber signal from being affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge cable technology field, concretely relates to an intelligent cable and signal line storage protective cover thereof. BACKGROUND

[0002] In recent decades, with the rapid leap of national economy and infrastructure construction, China's bridge engineering ushered in an unprecedented "golden age". Under the synergistic driving of material science, design theory and construction technology, magnificent bridges across the world have sprung up like mushrooms, from super-long-span suspension bridges, cable-stayed bridges across rivers, lakes and seas to prestressed concrete continuous beam bridges throughout the national highway network. The construction scale and technical level of bridges have achieved a historic breakthrough.

[0003] Intelligent cable is the product of the integration of traditional bridge cable and cutting-edge sensing technology, representing a major innovation in the field of bridge health monitoring. By directly implanting or attaching miniature sensing elements such as optical fiber sensors in the cable during manufacturing, it can "sense" key parameters such as stress, temperature and vibration while bearing structural load. This built-in "nerve" system can monitor the stress state and potential damage of the cable in real time and accurately, providing unprecedented data support for evaluating bridge safety, warning fatigue damage and implementing preventive maintenance, greatly improving the safety and durability of large bridge operation.

[0004] Currently, the signal line of the internal sensor of the intelligent cable is generally arranged in the hollow steel pipe inside the anchor and led out from the large end of the anchor. However, due to the full pouring of some anchors, the signal line may be worn out and cause large bending after being directly threaded through the sealing plate from the large end, which is not conducive to the transmission of fiber grating signals. UTILITY MODEL CONTENTS

[0005] Therefore, it is necessary to provide an intelligent cable and a signal line storage protective cover thereof for the signal line leading-out mode of the existing sensor to solve the problems of signal line wear and large bending.

[0006] A signal line storage protective cover, comprising: a shell having a receiving cavity, the shell being provided with a wire outlet hole communicating with the receiving cavity; and a winding table arranged in the receiving cavity, the end surface of the winding table away from the inner wall of the shell being provided with a receiving groove for receiving a fiber grating optical splitter, and the side wall of the winding table being used for winding the signal line, and finally the signal line being threaded out from the wire outlet hole.

[0007] In one embodiment, the periphery of the shell is provided with a flange, and the flange is provided with mounting holes for mounting to the anchor.

[0008] In one of the embodiments, a reinforcing rib is arranged between the shell and the flange.

[0009] In one of the embodiments, the shell is made of transparent material.

[0010] In one of the embodiments, the shell is made of transparent organic glass.

[0011] In one of the embodiments, a sealing glue is arranged in the wire outlet hole.

[0012] In one of the embodiments, a drain hole is arranged on the shell and communicates with the accommodating cavity, and a one-way valve is arranged in the drain hole.

[0013] In one of the embodiments, the winding table is coaxially arranged with the axis of the shell.

[0014] In one of the embodiments, the winding table is in the shape of a circular truncated cone, and the diameter of the winding table gradually decreases in the direction close to the anchorage device.

[0015] An intelligent cable, comprising: an anchorage device; a cable anchored by the anchorage device, and a sensor encapsulated in the cable; and The signal line storage protection cover according to any one of the above-mentioned embodiments is arranged on the anchorage device, and the signal line of the sensor passes through the anchorage device and enters the storage protection cover.

[0016] The intelligent cable and the signal line storage protection cover thereof, the fiber Bragg grating splitter is specially stored in the accommodating groove, the signal line is wound on the side wall of the winding sleeve with a large curvature radius, and finally the signal line is taken out from the wire outlet hole. The signal line will not be abraded by the sealing plate, and the small curvature radius also prevents the transmission quality of the optical fiber signal from being affected. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present application, the drawings required in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0018] Figure 1 Fig. 1 is a structural schematic view of an intelligent cable in an embodiment; Figure 2 Fig. 2 is a structural schematic view of a signal line storage protection cover in an embodiment; Figure 1 Fig. 3 is a structural schematic view of a signal line storage protection cover in another embodiment; Figure 3 Fig. 4 is a side view of the signal line storage protection cover shown in Fig. 3. Figure 2

[0019] Reference signs: ​10-Anchor, 11-Large end, 20-Cable, 21-Signal line, 30-Signal line storage and protection cover, 31-Housing, 312-Receiving cavity, 314-Outlet hole, 32-Winding platform, 322-Receiving groove, 33-Flange, 332-Mounting hole, 34-Reinforcing rib, 35-Drain hole, 352-One-way valve, 40-Fiber optic grating splitter. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0023] Please see Figure 1 One embodiment of the smart cable includes an anchor 10, a cable 20, and a signal line storage and protection cover 30.

[0024] The cable 20 is anchored by the anchor 10. In this embodiment, the cable 20 is anchored by split wires. A sensor is encapsulated inside the cable 20, and a signal wire storage protective cover 30 is installed on the anchor 10. The signal wire 21 of the sensor inside the cable 20 passes through the anchor 10 and enters the signal wire storage protective cover 30.

[0025] In one embodiment, the signal cable storage and protection cover 30 is installed on the large end 11 of the anchor 10. The signal cable 21 of the sensor passes through the anchor 10 and then exits from the large end 11 of the anchor 10. After being stored and organized by the signal cable storage and protection cover 30, it exits.

[0026] Please refer to the following: Figure 2In one embodiment, the signal cable storage and protection cover 30 includes a housing 31 and a winding platform 32. The housing 31 is generally cylindrical and has a receiving cavity 312. The housing 31 is also provided with a cable outlet 314 communicating with the receiving cavity 312.

[0027] The winding stage 32 is located inside the receiving cavity 312 and is mounted on the bottom wall of the housing 31. The end face of the winding stage 32 away from the inner wall of the housing 31 is provided with a receiving groove 322. The fiber optic grating splitter 40 is located in the receiving groove 322. The fiber optic grating signal line 21 and other signal lines 21, such as temperature and humidity signal line 21, are wound around the side wall of the winding stage 32 with a large radius of curvature to prevent the small radius of curvature from affecting the transmission quality of the fiber optic signal. Finally, the signal line 21 passes through the outlet hole 314.

[0028] In one embodiment, the winding platform 32 is frustum-shaped, and its diameter gradually decreases towards the anchor 10. The frustum-shaped winding platform 32 ensures that the signal wire 21 is wound in a loop, preventing large bends in the signal wire 21 caused by irregular surfaces. The gradual decrease in diameter towards the anchor 10 allows the signal wire 21 to be wound gradually from small to large, ensuring stable winding of the signal wire 21.

[0029] In one embodiment, the winding platform 32 is coaxially arranged with the axis of the housing 31. The winding platform 32 is located at the center of the housing 31, which can make the distance between the signal line 21 on the winding platform 32 and the inner wall of the housing 31 consistent, thus avoiding contact wear between the signal line 21 and the inner wall of the housing 31.

[0030] In one embodiment, a sealant is provided inside the outlet hole 314. The sealant can seal the outlet hole 314, ensuring the airtightness of the protective cover and preventing external humid air from accelerating the corrosion of the anchor end wire. Specifically, the sealant can be silicone rubber, polyurethane sealant, etc.

[0031] In one embodiment, a flange 33 is provided around the periphery of the housing 31, and the flange 33 has mounting holes 332 for mounting onto the anchor 10. The signal wire 21 is wound around the winding platform 32, and after the signal wire 21 exits through the outlet hole 314, a signal wire storage protective cover 30 is placed over the large end 11 of the anchor 10. Bolts are then inserted into the mounting holes 332 and the holes on the anchor 10 to install the signal wire storage protective cover 30 onto the anchor 10.

[0032] Please refer to the following: Figure 3In this embodiment, multiple sets of mounting holes 332 are provided, and these sets of mounting holes 332 are arranged in an array along the circumferential direction to ensure the stable installation of the signal cable receiving protective cover 30. The flange 33 can be integrally formed with the housing 31, such as by stamping or injection molding, to ensure the strength of the protective cover. In one embodiment, a reinforcing rib 34 is provided between the housing 31 and the flange 33. The reinforcing rib 34 can increase the connection strength between the housing 31 and the flange 33 and prevent damage to the protective cover.

[0033] In one embodiment, to prevent external humid air from exacerbating the corrosion of the anchoring end wire, a stainless steel protective cover is generally used for sealing. However, stainless steel seals do not allow for real-time observation of the internal conditions, which is not conducive to inspection and maintenance. Therefore, in this embodiment, the housing 31 is made of transparent acrylic glass, which facilitates observation and maintenance of the anchoring end, optical fiber, temperature and humidity signal line 21, and beam splitter. Specifically, the housing 31 is made of transparent acrylic glass, and the light transmittance of the acrylic glass should be greater than 90% to achieve visualization.

[0034] In one embodiment, the housing 31 has a drain hole 35 that communicates with the receiving cavity 312. A one-way valve 352 is installed in the drain hole 35. The one-way flow direction of the one-way valve 352 is from the inside of the protective cover to the outside. The one-way flow of the one-way valve 352 can automatically drain water when there is water accumulation inside the protective cover and seal it when there is no water drainage, thus ensuring the airtightness of the inside of the protective cover.

[0035] The aforementioned intelligent cable and its signal line storage protective cover 30, along with the fiber optic grating splitter 40, are specifically housed in the receiving slot 322. The signal line 21 is wound around the side wall of the winding sleeve with a large radius of curvature, and finally exits through the outlet hole 314. The signal line 21 will not experience wear from the sealing plate, and the small radius of curvature also prevents it from affecting the transmission quality of the fiber optic signal. The protective cover is made of transparent material, allowing real-time observation of the internal condition, which is beneficial for inspection and maintenance.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A signal cable storage and protective cover, characterized in that, include: The housing has a receiving cavity, and the housing is provided with a wire outlet hole communicating with the receiving cavity; and A winding platform is disposed within the receiving cavity. The end face of the winding platform away from the inner wall of the housing is provided with a receiving groove for accommodating the fiber optic grating splitter. The side wall of the winding platform is used to wind the signal line, and finally the signal line passes through the outlet hole.

2. The signal cable storage and protective cover according to claim 1, characterized in that, The periphery of the housing is provided with a flange, and the flange is provided with mounting holes for mounting onto an anchor.

3. The signal cable storage and protective cover according to claim 2, characterized in that, A reinforcing rib is provided between the housing and the flange.

4. The signal cable storage and protective cover according to claim 1, characterized in that, The shell is made of a transparent material.

5. The signal cable storage and protective cover according to claim 4, characterized in that, The shell is made of transparent plexiglass.

6. The signal cable storage and protective cover according to claim 1, characterized in that, The outlet hole is filled with sealant.

7. The signal cable storage and protective cover according to claim 1, characterized in that, The housing has a drain hole that connects to the receiving cavity, and a one-way valve is installed in the drain hole.

8. The signal cable storage and protective cover according to claim 1, characterized in that, The winding platform is coaxial with the axis of the housing.

9. The signal cable storage and protective cover according to any one of claims 1-8, characterized in that, The winding platform is frustum-shaped, and its diameter gradually decreases towards the anchor.

10. A smart cable, characterized in that, include: Anchorage; The cable is anchored by the anchor, and a sensor is encapsulated inside the cable; and The signal line storage and protection cover as described in any one of claims 1-9 is installed on the anchor, and the signal line of the sensor passes through the anchor and enters the storage and protection cover.

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