Composite structure elevator cable with steel cord reinforcement core

Abstract

The utility model relates to cable manufacturing technical field especially relates to a kind of composite structure elevator cable with steel rope reinforcing core, including cable body, the cable body includes the reinforcing steel rope of central arrangement and the multiple beam wire core combination inner layer, multiple beam wire core combination middle layer, multiple beam wire core combination outer layer, cotton yarn braiding layer and outer sheath layer are sequentially arranged from inside to outside around reinforcing steel rope;The reinforcing steel rope includes the reinforcing core of being arranged in central position, and the outer end of the reinforcing core is equipped with steel rope sheath;The reinforcing steel rope adopts mild steel rope, and the direction of stranding is left direction;The utility model is designed by multilayer composite structure, and mechanical performance and electrical performance are optimized, meet the demand of modern elevator to safety, reliability and durability.

Description

Technical Field

[0001] This utility model relates to the field of cable manufacturing technology, and in particular to a composite structure elevator cable with a steel rope reinforcing core. Background Technology

[0002] With the continuous development and progress of society, elevators are being used more and more widely, and the performance requirements for elevator cables are becoming increasingly stringent. Traditional elevator cables have the following shortcomings: traditional cables mostly use a single fiber rope or metal wire as a reinforcing core, which is not strong enough, making the cable prone to stretching deformation or breakage under the dynamic load of frequent elevator rises and falls, affecting operational safety; the core combination structure is simple, making it difficult to simultaneously meet the needs of power transmission and video signal transmission, and the insulation layer is easily damaged or the signal attenuated when bent due to structural instability; the protective layer has weak buffering and wear resistance, making it susceptible to external environmental influences during long-term use, shortening the cable's service life. Utility Model Content

[0003] To address some of the problems existing in the prior art, this utility model provides a composite structure elevator cable with a steel rope reinforcing core. This cable optimizes mechanical and electrical performance through a multi-layer composite structure design, meeting the requirements of modern elevators for safety, reliability, and durability.

[0004] To achieve the above objectives, this utility model provides a composite structure elevator cable with a steel rope reinforcing core, comprising a cable body, the cable body including a reinforcing steel rope disposed at the center and multiple bundles of wire cores arranged sequentially from the inside out around the reinforcing steel rope, including an inner layer, a middle layer, an outer layer, a cotton yarn braided layer, and an outer sheath layer; the reinforcing steel rope includes a reinforcing core disposed at the center, the outer end of which is fitted with a steel rope sheath; the reinforcing steel rope is a soft steel rope, and the twisting direction is left-handed.

[0005] In operation, the cable body is supported by a reinforcing steel rope. The reinforcing core provides tensile strength through a left-hand twisted soft steel rope structure, and the steel rope sheath protects the rope from external corrosion. The inner layer of the multi-bundle wire core assembly surrounds the reinforcing steel rope. The inner layer wires use right-hand twisted copper conductors and are wrapped with 105°C UL insulation material. The inner layer fills the gaps between the wires. The first filament non-woven fabric is wrapped left-hand with a 15%–25% overlap rate to form the inner layer protection. The middle layer of the multi-bundle wire core assembly wraps around the inner layer. The first middle layer wire, the second middle layer wire, and the coaxial video cable are arranged around the inner layer. The second middle layer wire is twisted left-hand with a copper conductor and bulletproof wire to enhance resistance. For tensile strength, the coaxial video cable uses LDPE insulation and 0.10mm soft copper wire braided shielding to achieve anti-interference transmission. After filling the gaps in the middle layer, the second long filament non-woven fabric is wrapped around the right with a 15% to 25% overlap rate. The outer layer of the multi-bundle core combination wraps the middle layer. The outer layer of the core consists of conductor cores with copper wire and bulletproof wire twisted in the right and an insulation layer. The third long filament non-woven fabric is wrapped around the outer layer in the left with a 15% to 25% overlap rate. The cotton yarn braided layer is formed by cross-weaving polyester rope to form a wear-resistant protective layer. Finally, the outer sheath layer is wrapped with a high wear-resistant material to cover the entire structure. All layers work together to achieve the cable's tensile strength, anti-interference, wear resistance and signal transmission functions.

[0006] The beneficial effects of this utility model are as follows: By using a left-hand twisted soft steel rope as the central reinforcing core, combined with a steel rope sheath, the tensile strength of the cable is significantly improved, effectively withstanding the tensile force during elevator operation; through the layered design of multiple core bundles, including inner, middle, and outer layers, combined with copper conductors, bulletproof wire bundles, and overlapping wrapping of long-filament non-woven fabric, core displacement is effectively suppressed, enhancing overall roundness and structural stability; the coaxial video cable uses LDPE insulation material combined with 0.10mm soft copper wire braided shielding, combined with a differentiated wrapping direction design, effectively improving the anti-interference capability of signal transmission and ensuring signal transmission quality; the outer sheath layer uses high-strength wear-resistant material, combined with a cotton yarn braided layer to form multi-layer protection, which can absorb radial impact force, reduce vibration damage, and improve wear resistance; the bulletproof wire and copper wire bundle structure in the outer layer further enhances flexibility, adapts to high-frequency bending conditions, extends service life, and meets the stringent requirements of elevator systems for safety, reliability, and durability.

[0007] As a further improvement of this utility model, in order to reduce the gaps between the wire cores, improve the roundness of the structure, and enhance the cable's resistance to bending deformation, the inner layer of the multi-bundle wire core assembly includes multiple inner layer bundles arranged at intervals, and an inner layer filler is provided between the inner layer bundles; both the inner layer bundles and the inner layer filler are arranged around the reinforcing steel rope as the center, and the outer sides of the inner layer bundles and the inner layer filler are wrapped with a first filament nonwoven fabric.

[0008] As a further improvement of this utility model, in order to enhance the reliability of the cable in the high-temperature environment of the elevator shaft, the right-hand stranding and left-hand wrapping form an interlocking structure to enhance the anti-torsion performance; the inner layer bundle is made of copper conductor bundles stranded in the right-hand direction; the inner layer bundle includes an insulation layer, which uses 105℃ UL insulation material; the first filament nonwoven fabric is wrapped with overlapping, the wrapping direction is left-hand, and the overlap rate is 15% to 25%.

[0009] As a further improvement of this utility model, in order to achieve the integration of power and video signal transmission and reduce the risk of interlayer slippage, the middle layer of the multi-bundle wire core assembly includes a first middle layer wire, a second middle layer wire, and a coaxial video line. Multiple sets of the first and second middle layer wires are provided. The first and second middle layer wires and the coaxial video line are all arranged around the inner layer of the multi-bundle wire core assembly. A second filament nonwoven fabric is wrapped around the outside of the first and second middle layer wires and the coaxial video line. A middle layer filler is provided between the second filament nonwoven fabric and the first and second middle layer wires and the coaxial video line.

[0010] As a further improvement of this utility model, in order to enhance the anti-interference capability of signal transmission and meet the needs of elevator video monitoring, the second bundle of wires in the middle layer is made of multiple copper conductors and bulletproof wire bundles twisted into a cable, with the twisting direction being to the left; the second long filament non-woven fabric is wrapped with overlapping, with the wrapping direction being to the right and the overlap rate being 15% to 25%; the coaxial video cable includes an insulating shielding layer, which is made of LDPE insulating material and multiple 0.10mm soft copper wires braided for shielding.

[0011] As a further improvement of this utility model, in order to reduce the loose deformation of the outer layer of the cable when bending and improve the flexibility of the cable, the outer layer of the multi-bundle core assembly includes an outer layer bundle, and the outer layer bundle is arranged in several around the middle layer of the multi-bundle core assembly; the outer side of the outer layer bundle is wrapped with a third filament nonwoven fabric, the wrapping direction of the third filament nonwoven fabric is to the left, and the overlap rate is 15% to 25%.

[0012] As a further improvement of this utility model, in order to improve tensile strength and meet the electrical safety requirements of densely arranged wire bundles, the outer wire bundle includes a conductor core located at the center. The conductor core is a cable made of multiple copper wires and bulletproof wire bundles twisted together in a right-hand direction. An insulation layer is provided on the outside of the conductor core.

[0013] As a further improvement of this utility model, in order to form an elastic buffer layer to absorb the radial impact force during cable operation, reduce vibration damage, and at the same time improve wear resistance and extend service life, the cotton yarn braided layer is composed of multiple cross-woven polyester ropes; the outer sheath layer is made of highly wear-resistant material. Attached Figure Description

[0014] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the cross-section of the reinforcing steel rope in this utility model.

[0016] Figure 3 This is a cross-sectional schematic diagram of the inner layer of the multi-bundle wire core assembly in this utility model.

[0017] Figure 4 This is a cross-sectional schematic diagram of the middle layer of the multi-bundle wire core assembly in this utility model.

[0018] Figure 5 This is a cross-sectional schematic diagram of the outer layer of the multi-bundle wire core assembly in this utility model.

[0019] Figure 6 This is a schematic cross-sectional view of the outer layer bundle in this utility model.

[0020] The components include: 1. Reinforcing steel rope; 11. Reinforcing core; 12. Steel rope sheath; 2. Inner layer of multi-bundle wire core combination; 21. Inner layer bundle; 22. Inner layer filler; 23. First filament non-woven fabric; 3. Middle layer of multi-bundle wire core combination; 31. Middle layer first bundle; 32. Middle layer filler; 33. Second filament non-woven fabric; 34. Middle layer second bundle; 35. Coaxial video cable; 4. Outer layer of multi-bundle wire core combination; 41. Outer layer bundle; 411. Conductor core; 412. Insulation layer; 42. Third filament non-woven fabric; 5. Cotton yarn braided layer; and 6. Outer sheath. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions in this utility model, the following description is provided in conjunction with the appendix. Figure 1-6 The present invention will be further described below. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the protection scope of the present invention.

[0022] In the description of this utility model, it should be noted that the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] like Figure 1-6The illustrated elevator cable with a steel rope reinforcing core includes a cable body. The cable body comprises a centrally located reinforcing steel rope 1, and surrounding the reinforcing steel rope 1, arranged sequentially from the inside out: an inner layer 2 of multiple bundled wire cores, a middle layer 3 of multiple bundled wire cores, an outer layer 4 of multiple bundled wire cores, a cotton yarn braided layer 5, and an outer sheath layer 6. The reinforcing steel rope 1 includes a centrally located reinforcing core 11, the outer end of which is fitted with a steel rope sheath 12. The reinforcing steel rope 1 is made of soft steel rope, and the twisting direction is left-handed. The inner layer 2 of the multiple bundled wire cores includes multiple inner layer bundles 21 spaced apart, with inner layer filler 22 between the inner layer bundles 21. The inner layer bundles 21 and the inner layer... The filler 22 is arranged around the reinforcing steel rope 1. The inner layer bundle 21 and the inner layer filler 22 are wrapped with a first long filament non-woven fabric 23. The inner layer bundle 21 is made of copper conductor bundles twisted in the right direction. The inner layer bundle 21 includes an insulation layer made of 105°C UL insulation material. The first long filament non-woven fabric 23 is wrapped with overlapping layers in the left direction, with an overlap rate of 15% to 25%. The multi-bundle core combination middle layer 3 includes a middle layer first bundle 31, a middle layer second bundle 34, and a coaxial video cable 35. The middle layer first bundle 31 and the middle layer second bundle 34 are each provided with multiple sets. The middle layer first bundle 31 and the middle layer second bundle 34 are arranged with... The coaxial video cable 35 is arranged around the inner layer 2 of the multi-bundle wire core assembly. The outer sides of the first bundle of wires 31, the second bundle of wires 34, and the coaxial video cable 35 are wrapped with a second long filament nonwoven fabric 33. A middle layer filler 32 is provided between the second long filament nonwoven fabric 33 and the first bundle of wires 31, the second bundle of wires 34, and the coaxial video cable 35. The second bundle of wires 34 is a cable made of multiple copper conductors and bulletproof wire bundles twisted together in the left direction. The second long filament nonwoven fabric 33 is wrapped with overlapping layers in the right direction, with an overlap rate of 15% to 25%. The coaxial video cable 35 includes an insulating shielding layer, which is made of LDPE insulating material and multiple 0. The shield is made of 10mm soft copper wire braid; the outer layer 4 of the multi-bundle wire core assembly includes an outer layer bundle 41, which is arranged in several layers around the middle layer 3 of the multi-bundle wire core assembly; the outer layer bundle 41 is wrapped with a third long filament non-woven fabric 42, which is wrapped in a left-hand direction with an overlap rate of 15% to 25%; the outer layer bundle 41 includes a conductor core 411 located at the center, which is made of multiple copper wires twisted with bulletproof wire bundles in a right-hand direction; an insulation layer 412 is provided on the outside of the conductor core 411; the cotton yarn braided layer 5 is made of multiple cross-braided polyester ropes; the outer sheath layer 6 is made of a highly wear-resistant material.

[0024] In operation, the cable body is supported by a reinforcing steel rope 1. The reinforcing core 11 provides tensile strength through a left-hand twisted soft steel rope structure. A steel rope sheath 12 protects the steel rope from external corrosion. The inner layer 2 of the multi-bundle wire core assembly surrounds the reinforcing steel rope 1. The inner layer wires 21 use right-hand twisted copper conductors and are wrapped with 105°C UL insulation material. The inner layer filler 22 fills the gaps between the wires. The first filament non-woven fabric 23 is wrapped left-hand with a 15%–25% overlap rate to form the inner layer protection. The middle layer 3 of the multi-bundle wire core assembly wraps around the inner layer. The middle layer first bundle 31, the middle layer second bundle 34, and the coaxial video cable 35 are arranged around the inner layer. The middle layer second bundle 34 is twisted left-hand with a copper conductor to provide tensile strength. To enhance tensile strength, the coaxial video cable 35 employs LDPE insulation and 0.10mm soft copper wire braided shielding for interference-resistant transmission. After the middle layer filler 32 fills the gaps, the second long filament non-woven fabric 33 wraps around it to the right with a 15%–25% overlap rate. The multi-bundle core combination outer layer 4 wraps around the middle layer. The outer layer bundle 41 consists of conductor cores 411 twisted to the right by copper wire and bulletproof wire, and an insulation layer 412. The third long filament non-woven fabric 42 wraps around the outer layer to the left with a 15%–25% overlap rate. The cotton yarn braided layer 5 forms a wear-resistant protective layer through cross-weaving of polyester ropes. Finally, the outer sheath layer 6 uses a highly wear-resistant material to wrap the entire structure. All layers work together to achieve the cable's tensile strength, interference resistance, wear resistance, and signal transmission functions.

[0025] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A composite elevator cable with a steel rope reinforcing core, comprising a cable body, characterized in that: The cable body includes a centrally located reinforcing steel rope (1) and a multi-bundle core assembly inner layer (2), a multi-bundle core assembly middle layer (3), a multi-bundle core assembly outer layer (4), a cotton yarn braided layer (5), and an outer sheath layer (6) arranged sequentially from the inside to the outside around the reinforcing steel rope (1); the reinforcing steel rope (1) includes a reinforcing core (11) located at the center, and the outer end of the reinforcing core (11) is fitted with a steel rope sheath (12); the reinforcing steel rope (1) is made of soft steel rope and the twisting direction is to the left.

2. The composite elevator cable with steel rope reinforcement core according to claim 1, characterized in that: The inner layer (2) of the multi-bundle core assembly includes multiple inner layer bundles (21) spaced apart, and an inner layer filler (22) is provided between the inner layer bundles (21); the inner layer bundles (21) and the inner layer filler (22) are both arranged around the reinforcing steel rope (1) as the center, and the outer side of the inner layer bundles (21) and the inner layer filler (22) is wrapped with a first filament nonwoven fabric (23).

3. The composite elevator cable with steel rope reinforcement core according to claim 2, characterized in that: The inner layer bundle (21) is made of copper conductor bundle twisted together in the right direction; the inner layer bundle (21) includes an insulating layer made of 105°C UL insulating material; the first filament nonwoven fabric (23) is wrapped in an overlapping manner in the left direction with an overlap rate of 15% to 25%.

4. The composite elevator cable with steel rope reinforcement core according to claim 1, characterized in that: The middle layer (3) of the multi-bundle wire core assembly includes a first middle layer wire bundle (31), a second middle layer wire bundle (34), and a coaxial video cable (35). The first middle layer wire bundle (31) and the second middle layer wire bundle (34) are provided in multiple sets. The first middle layer wire bundle (31), the second middle layer wire bundle (34), and the coaxial video cable (35) are all arranged around the inner layer (2) of the multi-bundle wire core assembly. The outer side of the first middle layer wire bundle (31), the second middle layer wire bundle (34), and the coaxial video cable (35) is wrapped with a second filament nonwoven fabric (33). A middle layer filler (32) is provided between the second filament nonwoven fabric (33) and the first middle layer wire bundle (31), the second middle layer wire bundle (34), and the coaxial video cable (35).

5. The composite elevator cable with steel rope reinforcement core according to claim 4, characterized in that: The middle layer second bundle (34) is a cable made of multiple copper conductors and bulletproof wire bundles twisted together in the left direction; the second long filament nonwoven fabric (33) is wrapped in an overlapping manner in the right direction with an overlap rate of 15% to 25%; the coaxial video cable (35) includes an insulating shielding layer, which is made of LDPE insulating material and multiple 0.10mm soft copper wires braided for shielding.

6. The composite elevator cable with steel rope reinforcement core according to claim 1, characterized in that: The outer layer (4) of the multi-bundle core assembly includes an outer layer bundle (41), and several outer layer bundles (41) are arranged around the middle layer (3) of the multi-bundle core assembly; a third filament nonwoven fabric (42) is wrapped around the outer side of the outer layer bundle (41), and the wrapping direction of the third filament nonwoven fabric (42) is to the left, with an overlap rate of 15% to 25%.

7. The composite elevator cable with steel rope reinforcement core according to claim 6, characterized in that: The outer layer wire (41) includes a conductor core (411) located at the center. The conductor core (411) is a cable made of multiple copper wires twisted together with bulletproof wire bundles, with the twisting direction being to the right. An insulation layer (412) is provided on the outside of the conductor core (411).

8. The composite elevator cable with steel rope reinforcement core according to claim 1, characterized in that: The cotton yarn braided layer (5) consists of multiple cross-woven polyester ropes; the outer sheath layer (6) is made of a highly wear-resistant material.

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