A hoisting cable with a tensile band monitoring function

Abstract

The utility model discloses a hoist cable with tensile belt monitoring function, including conductor, tensile body, outer optical fiber body, filling body and sheath, three conductors are close to the delta shape arrangement, and the outer optical fiber body is arranged between two adjacent conductors, and the filling body is filled between two adjacent conductors, and the inner side of filling body presses the outer optical fiber body on the conductor, and the outer circumferential surface of two adjacent filling bodies is linked to constitute the cylindrical surface, and is wrapped by the sheath, and the tensile body is arranged in the filling body, and the tensile body includes support cover, steel wire and armoring, and the support cover is the elastic elliptical tubular structure, and the major axis extends along the radial, and is towards the outer optical fiber body, and a plurality of steel wires are sequentially arranged along the outer circumferential surface of the support cover, and the armoring wraps the steel wire, and the steel wire is limited in the support cover. The utility model provides a kind of hoist cable, and improves tensile property and safety performance.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a hoisting cable with tensile strength monitoring function. Background Technology

[0002] With the development of high-rise buildings and increasing waterproofing requirements, higher demands are being placed on the tensile strength and fire resistance of hoisting cables for high-rise buildings. Existing hoisting cables, as shown in patent application number CN201920956998.0, consist of a conductor, an outer sheath, and a steel wire rope. The steel wire rope is located at the center of the hoisting cable, with multiple conductors arranged around it. Finally, the outer sheath wraps around the conductors. Existing hoisting cables utilize the space between the conductors to install a single steel wire rope. This results in a small number of wire ropes, poor tensile strength, and suitability for applications with relatively low load-bearing capacity. Furthermore, they lack temperature and vibration monitoring capabilities, leading to poor safety during hoisting. Utility Model Content

[0003] To address the shortcomings of existing hoisting cables in terms of poor tensile strength and safety performance, this invention proposes a hoisting cable that improves both tensile strength and safety performance.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A hoisting cable with tensile strength monitoring function includes a conductor, a tensile body, an outer optical fiber, a filler, and a sheath. The three conductors are arranged in a tight triangular pattern. An outer optical fiber is placed between two adjacent conductors. The filler is placed between two adjacent conductors, and the inner side of the filler presses the outer optical fiber onto the conductor. The outer peripheral surfaces of two adjacent fillers are connected to form a cylindrical surface and are wrapped by the sheath. Each filler contains a tensile body, which includes a support sleeve, steel wires, and armor. The support sleeve is an elastic elliptical tubular structure with its major axis extending radially and facing the outer optical fiber. Multiple steel wires are arranged sequentially along the outer periphery of the support sleeve, and the armor wraps around the steel wires, limiting the steel wires outside the support sleeve.

[0006] Through the above configuration, firstly, embedding tensile strength elements within the filler allows for more space to accommodate these elements, thereby enhancing the overall tensile strength of the hoisting cable and making it suitable for use in ultra-high-rise buildings; secondly, embedding external optical fibers within the hoisting cable allows for monitoring of the cable's temperature and vibration, improving its safety; and thirdly, the tensile strength elements act as thermal bridges, facilitating the transfer of external heat from the hoisting cable to the external optical fibers, increasing the external optical fibers' sensitivity to external temperatures, and further enhancing the safety of the hoisting cable.

[0007] Furthermore, the distance from the outer end of the tensile body to the outer peripheral surface of the filler is d1, and the distance from the inner end of the tensile body to the outer optical fiber is d2, 1mm. <d1<3mm,1mm<d2<3mm。

[0008] Furthermore, the inner diameter of the support sleeve along its minor axis is r1, and the outer diameter of the outer optical fiber is r2, 1 / 3. <r1 / r2<1 / 2。

[0009] Furthermore, the hoisting cable also includes an inner optical fiber body, with three conductors arranged around the inner optical fiber body and abutting against it.

[0010] Furthermore, the side of the filler that abuts against the outer optical fiber is an arc surface, with the middle of the arc surface abutting against the outer optical fiber, and the arc surface extending perpendicularly to the outer surface of the conductor on both sides in the width direction.

[0011] The above settings facilitate the production of hoisting cables.

[0012] Furthermore, the filler is made of PE material.

[0013] The filler in this application is produced by extruding PE raw material outside steel wire using an extruder, which facilitates production.

[0014] Furthermore, the conductor includes, from the inside out, a copper wire, an inner shielding layer, an insulating layer, an outer shielding layer, a copper strip, a first wrapping layer, and a first flame-retardant layer.

[0015] Furthermore, the sheath includes, from the inside out, an oxygen barrier layer, a second wrapping layer, and a second flame-retardant layer. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the hoisting cable for an example.

[0017] Figure 2 for Figure 1 Enlarged view of point A. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0019] like Figures 1 to 2 A hoisting cable with tensile strength monitoring function includes a conductor 3, a tensile body 4, an outer optical fiber body 5, a filler body 6, and a sheath 7. The three conductors 3 are arranged in a tight triangular pattern. An outer optical fiber body 5 is provided between two adjacent conductors 3. The filler body 6 fills between two adjacent conductors 3. The inner side of the filler body 6 presses the outer optical fiber body 5 onto the conductor 3. The outer peripheral surfaces of two adjacent filler bodies 6 are connected to form a cylindrical surface and are wrapped by the sheath 7. Each filler body 6 contains a tensile body 4. The tensile body 4 includes a support sleeve 41, steel wires 42, and armor 43. The support sleeve 41 is an elastic elliptical tubular structure with its major axis extending radially and facing the outer optical fiber body 5. Multiple steel wires 42 are arranged sequentially along the outer periphery of the support sleeve 41. The armor 43 wraps around the steel wires 42 and limits the steel wires 42 outside the support sleeve 41.

[0020] Through the above configuration, firstly, the tensile body 4 is embedded in the filler 6, providing more space to install more tensile bodies 4, thereby improving the overall tensile performance of the hoisting cable and making it suitable for use in super high-rise buildings; secondly, the outer optical fiber 5 is embedded in the hoisting cable, which can be used to monitor the temperature and vibration of the hoisting cable, improving the safety of the hoisting cable; thirdly, the tensile body 4 can act as a thermal bridge, facilitating the transfer of external heat from the hoisting cable to the outer optical fiber 5, increasing the sensitivity of the outer optical fiber 5 to external temperature, and further improving the safety of the hoisting cable.

[0021] The conductor 3 in this application serves a conductive function. Specifically, three conductors 3 are arranged closely in a triangular pattern, meaning that each conductor 3 abuts against the adjacent conductor 3 to improve the compactness of the hoisting cable. The hoisting cable of this application specifically includes three external optical fibers 5, one between every two adjacent conductors 3. The external optical fibers 5 abut against the outer surface of the conductor 3 to monitor the surface temperature of the conductor 3. The external optical fibers 5 are specifically connected to the optical unit transmitting terminal to monitor temperature and vibration information. Three filler bodies 6 are provided in this application, each positioned between two adjacent conductors 3. The cross-section of the filler body 6 is approximately fan-shaped. When positioned between two adjacent conductors 3, the inner side of the filler body 6 presses the external optical fibers 5 tightly against the outer surface of the conductor 3. The outer circumferences of the filler bodies 6 interlock to form a circle, enclosing the three conductors 3 for easy sheathing. 7. Installation; The tensile body 4 of this application mainly serves to resist tension and bear the tension of the hoisting cable to prevent the outer optical fiber body 5 and conductor 3 from being pulled apart. The support sleeve 41 of the tensile body 4 can be made of a material with good elasticity, such as rubber or plastic. Its long axis extends radially along the hoisting cable and faces the outer optical fiber body 5. A layer of steel wire 42 is set on the outside of the support sleeve 41. The steel wires 42 are closely arranged, and two adjacent steel wires 42 abut against each other to prevent the steel wires 42 from moving. The armor 43 is made of metal and limits the steel wires 42 on the support sleeve 41. The cross-section of the tensile body 4 is basically an elliptical structure with its long axis extending radially towards the outer optical fiber body 5. It acts as a thermal bridge and can transfer the temperature of the hoisting cable surface inward to the outer optical fiber body 5. When a fire occurs on the outside of the hoisting cable, it can be transmitted to the outer optical fiber body 5 more quickly and thus be detected so as to control the fire more quickly. In addition, when the hoisting cable is bent, the tensile body 4, being hollow, can deform appropriately in the long axis direction to reduce the compressive force on the outer optical fiber body 5, thereby protecting the outer optical fiber body 5 and preventing it from being crushed.

[0022] In one implementation, the distance from the outer end of the tensile body 4 to the outer peripheral surface of the filler 6 is d1, and the distance from the inner end of the tensile body 4 to the outer optical fiber 5 is d2, 1mm. <d1<3mm,1mm<d2<3mm。

[0023] As one implementation, the inner diameter of the support sleeve 41 along its minor axis is r1, and the outer diameter of the outer optical fiber body 5 is r2, 1 / 3. <r1 / r2<1 / 2。

[0024] As one implementation method, the hoisting cable also includes an inner optical fiber body 8, with three conductors 3 arranged around the inner optical fiber body 8 and abutting against it.

[0025] As one implementation, the side of the filler 6 that abuts against the outer optical fiber 5 is an arc surface 9, the middle of the arc surface 9 abuts against the outer optical fiber 5, and the arc surface 9 extends vertically to the outer surface of the conductor 3 on both sides in the width direction.

[0026] The above settings facilitate the production of hoisting cables.

[0027] In this application, the filler 6 has an arc surface 9 on the side near the outer optical fiber 5. The distance between the left and right sides of the arc surface 9 is greater than the diameter of the outer optical fiber 5. When producing hoisting cables, after the outer optical fiber 5 is placed between the conductors 3, and the filler 6 is embedded between two adjacent conductors 3, the arc surface 9 can more easily press the outer optical fiber 5 onto the conductor 3. Moreover, the arc surface 9 is similar to an arch bridge, which can transmit part of the pressure of the tensile body 4 on the outer optical fiber 5 to the surface of the conductor 3, thereby reducing the force on the outer optical fiber 5 and protecting the outer optical fiber 5 from damage.

[0028] As one implementation method, filler 6 is made of PE material.

[0029] The filler 6 of this application uses an extruder to extrude PE raw material outside the steel wire 42, which facilitates production.

[0030] As one implementation, the conductor 3 includes, from the inside out, a copper wire 31, an inner shielding layer 32, an insulating layer 33, an outer shielding layer 34, a copper strip 35, a first wrapping layer 36, and a first flame-retardant layer 37.

[0031] In this application, the copper wire 31 serves to conduct electricity, the inner shielding layer 32, the copper strip 35, and the outer shielding layer 34 serve to shield, the insulating layer 33 serves to insulate, the first wrapping layer 36 serves to fasten, and the first flame-retardant layer 37 and the first wrapping layer 36 are both made of halogen-free materials, which have flame-retardant, smokeless, and non-toxic effects, and improve fire resistance and safety.

[0032] As one implementation method, the sheath 7 includes an oxygen barrier layer 71, a second wrapping layer 72 and a second flame retardant layer 73 arranged sequentially from the inside to the outside.

[0033] The oxygen barrier layer 71 of this application uses a low-smoke, halogen-free, ceramicized, high-flame-retardant polyolefin sheath 7. When exposed to open flame, it can melt and isolate air, prevent internal combustion, improve the fire resistance of the hoisting cable, and extend the working time of the hoisting cable in a fire, providing valuable time for rescue. The second wrapping layer 72 and the second flame-retardant layer 73 are made of halogen-free materials, which will not produce toxic smoke when exposed to open flame, facilitating personnel to escape from the fire.

[0034] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A hoisting cable with tensile strength monitoring function, characterized in that, The device comprises a conductor, a tensile body, an outer optical fiber, a filler, and a sheath. The three conductors are arranged in a tight triangular pattern. An outer optical fiber is placed between two adjacent conductors. The filler is placed between two adjacent conductors, and the inner side of the filler presses the outer optical fiber onto the conductor. The outer peripheral surfaces of two adjacent fillers are connected to form a cylindrical surface and are wrapped by the sheath. Each filler contains a tensile body. The tensile body includes a support sleeve, steel wires, and armor. The support sleeve is an elastic elliptical tubular structure with its major axis extending radially and facing the outer optical fiber. Multiple steel wires are arranged sequentially along the outer periphery of the support sleeve. The armor wraps around the steel wires and confines them outside the support sleeve.

2. The hoisting cable with tensile strength monitoring function according to claim 1, characterized in that, The distance from the outer end of the tensile body to the outer peripheral surface of the filler is d1, and the distance from the inner end of the tensile body to the outer optical fiber is d2, 1mm. <d1<3mm,1mm<d2<3mm。 3. A hoisting cable with tensile strength monitoring function according to claim 1, characterized in that, The inner diameter of the support sleeve along its minor axis is r1, and the outer diameter of the outer optical fiber is r2, 1 / 3. <r1 / r2<1 / 2。 4. A hoisting cable with tensile strength monitoring function according to claim 1, characterized in that, The hoisting cable also includes an inner optical fiber body, with three conductors arranged around the inner optical fiber body and abutting against it.

5. A hoisting cable with tensile strength monitoring function according to claim 4, characterized in that, The side of the filler that abuts against the outer optical fiber is an arc surface, the middle of the arc surface abuts against the outer optical fiber, and the arc surface extends vertically to the outer surface of the conductor on both sides in the width direction.

6. A hoisting cable with tensile strength monitoring function according to claim 1, characterized in that, The filler is made of PE material.

7. A hoisting cable with tensile strength monitoring function according to claim 1, characterized in that, The conductor comprises, from the inside out, a copper wire, an inner shielding layer, an insulating layer, an outer shielding layer, a copper strip, a first wrapping layer, and a first flame-retardant layer.

8. A hoisting cable with tensile strength monitoring function according to claim 1, characterized in that, The sheath includes, from the inside out, an oxygen barrier layer, a second wrapping layer, and a second flame-retardant layer.

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