Flat deflection-resistant elevator control cable suitable for high-rise building

Abstract

The utility model provides a flat deflection-resistant elevator control cable suitable for a high-rise building, and the cable comprises a power cable core which comprises a first wire core, the first wire core is wrapped by a first non-hygroscopic wrapping tape, and the first non-hygroscopic wrapping tape is filled with a first filling material; the control cable core comprises a second wire core, the second wire core is wrapped with a second non-hygroscopic wrapping tape, the second non-hygroscopic wrapping tape is filled with a second filling material, and the second non-hygroscopic wrapping tape is externally provided with a shielding layer and a third non-hygroscopic wrapping tape; the first wire core and the second wire core have the same structure and comprise conductors, reinforcing elements are arranged among the plurality of soft copper wires, and an insulating layer is extruded outside the plurality of soft copper wires; the power cable cores and the control cable cores are horizontally and alternately arranged and wrapped by the outer protection layer, and the reinforcing elements are utilized to increase the distortion resistance and the pulling resistance of the first cable core and the second cable core, so that the cable has good warping resistance, and signal and power output interruption caused by cable breakage is avoided.

Description

Technical Field

[0001] This utility model relates to the field of cables, and in particular to a flat, flexible elevator control cable suitable for high-rise buildings. Background Technology

[0002] Elevators, as indispensable vertical transportation tools in modern high-rise buildings, are crucial for the safe and efficient operation of the buildings' daily functions. With technological advancements and widespread application, elevator systems are constantly evolving, and elevator flat cables, due to their unique design characteristics, play an increasingly important role in these systems. The safety and reliability of elevators directly impact people's lives and work, and as one of the core components of an elevator, the quality and performance of the elevator control cable are particularly critical. The material of the elevator control cable directly affects its performance and service life.

[0003] Currently, elevator cables have some deficiencies in resistance to torsional fatigue, which makes them prone to breakage and causes interruptions in signal and power transmission. Utility Model Content

[0004] This invention provides a flat, flexible elevator control cable suitable for high-rise buildings, which aims to solve the problem of poor torsional fatigue resistance of existing flat cables.

[0005] To achieve the above objectives, embodiments of this utility model provide a flat, flexible elevator control cable suitable for high-rise buildings, comprising:

[0006] The power cable core includes several first cores twisted together, and the first cores are wrapped with a first non-hygroscopic tape. The area wrapped by the first non-hygroscopic tape is also filled with a first filler material, which is used to fill the gaps formed by the first cores.

[0007] The control cable core includes several intertwined second cores, with a second non-hygroscopic wrapping tape wrapped around the second cores. The area wrapped by the second non-hygroscopic wrapping tape is also filled with a second filler material. A shielding layer and a third non-hygroscopic wrapping tape are sequentially arranged outside the second non-hygroscopic wrapping tape.

[0008] The first core and the second core have the same structure, including a conductor, which is formed by twisting multiple soft copper wires together. A reinforcing element is provided between the multiple soft copper wires, and an insulating layer is extruded over the multiple soft copper wires.

[0009] The power cable core and the control cable core are arranged alternately in a horizontal manner, and the power cable core and the control cable core are also wrapped with an outer protective layer.

[0010] Preferably, the soft copper wire is a type 6 annealed copper wire, and multiple soft copper wires are twisted together in a preset direction and a preset pitch to form a conductor. The preset direction is either S-direction or Z-direction, and the preset pitch is 12-14 times the conductor diameter.

[0011] Preferably, the first filler material and the second filler material are made of one of the following: nylon fiber filaments, polypropylene PP rope, or high flame retardant rope.

[0012] Preferably, the first, second, and third non-hygroscopic wrapping tapes are flame-retardant wrapping tapes or fiberglass cloth tapes, and the overlap rate of the first, second, and third non-hygroscopic wrapping tapes when wrapping is not less than 15%.

[0013] Preferably, the shielding layer is a metal shielding layer, which is made of soft copper wires with a diameter of 0.15mm-0.20mm crisscrossed and woven at a density of 85%.

[0014] Preferably, the insulating layer is formed by extruding polyvinyl chloride nitrile elastomer material onto the outside of the conductor.

[0015] Preferably, the outer protective layer is formed by extruding polyvinyl chloride butadiene silicone elastomer outside the power cable core and the control cable core.

[0016] Preferably, the reinforcing element is made of nylon fiber yarn.

[0017] Preferably, the number of power cable cores is 3-5, and the number of control cable cores is set according to the logarithm of the control signals.

[0018] The above-mentioned solution of this utility model has the following beneficial effects:

[0019] In this application, reinforcing elements are provided inside the conductor of the wire core. The reinforcing elements are used to increase the torsion resistance and tensile strength of the first and second wire cores, so that this application has good flexibility and avoids signal and power output interruption due to cable breakage. At the same time, the insulation layer and sheath layer of the polymer material not only have good insulation, flexibility and oil resistance, but also have high cost performance. This also enables this application to maintain stable performance and market preference in the load-bearing environment.

[0020] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the present invention;

[0022] Figure 2 yes Figure 1 Enlarged view of section A;

[0023] Figure 3 yes Figure 1 Enlarged view of section B.

[0024] [Explanation of Labels in the Attached Image]

[0025] 100 - Power cable core, 110 - First conductor, 120 - First filler material, 130 - First non-absorbent wet wrapping tape

[0026] 200 - Control cable core, 210 - Second core, 220 - Second filler material, 230 - Second non-hygroscopic wrapping tape, 240 - Shielding layer, 250 - Third non-hygroscopic wrapping tape.

[0027] 111-Conductor, 112-Reinforcing element, 113-Insulating layer,

[0028] 300 - Outer protective layer. Detailed Implementation

[0029] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0030] like Figures 1-3 As shown, an embodiment of this utility model provides a flat, flexible elevator control cable suitable for high-rise buildings, including a power cable core 100 for transmitting electrical energy and a control cable core 200 for transmitting signals. The power cable core 100 includes first cores 110, and several first cores 110 are twisted together. A first non-hygroscopic wrapping tape 130 is wrapped around the twisted first cores 110. A first filler material 120 is filled in the area wrapped by the first non-hygroscopic wrapping tape 130, and the first filler material 120 fills the gaps formed by the first cores 110.

[0031] The control cable core 200 includes second cores 210, a plurality of second cores 210 being twisted together. A second non-hygroscopic wrapping tape 230 is wrapped around the twisted second cores 210. A second filler material 220 is filled in the area wrapped by the second non-hygroscopic wrapping tape 230, filling the gaps formed by the second cores 210. A shielding layer 240 and a third non-hygroscopic wrapping tape 250 are sequentially disposed outside the second non-hygroscopic wrapping tape 230.

[0032] The aforementioned first core 110 and second core 210 have the same structure, both including a conductor 111, which is formed by twisting multiple soft copper wires together. A reinforcing element 112 is also provided between the multiple soft copper wires, and the multiple soft copper wires are twisted around the reinforcing element 112. An insulating layer 113 is also extruded over the conductor 111 formed by the multiple soft copper wires.

[0033] The aforementioned power cable core 100 and control cable core 200 are arranged horizontally alternately and at intervals, and an outer protective layer 300 is wrapped around the power cable core 100 and control cable core 200 to protect the power cable core 100 and control cable core 200.

[0034] The reinforcing element 112 is a linear structure made of nylon fiber yarn, and multiple soft copper wires are twisted together around the reinforcing element 112 to form a conductor 111.

[0035] In this application, the soft copper wire is a type 6 annealed copper wire. Multiple soft copper wires are twisted together in a predetermined direction and at a predetermined pitch to form a conductor 111. The predetermined direction is either S-axis or Z-axis, and the predetermined pitch is 12-14 times the diameter of the conductor 111. The maximum diameter of the type 6 annealed copper wire is 0.21 mm. The smaller the wire diameter, the more flexible the conductor 111. Combined with a reinforcing element 112 made of nylon fiber yarn, the first core 110 and the second core 210 possess good tensile strength, tensile strength, and excellent mechanical and impact resistance, exhibiting high strength.

[0036] The first core 110 and the second core 210 are also twisted together in another preset direction and with a preset pitch to form the power cable core 100 and the control cable core 200. The preset direction of the first core 110 and the second core 210 is the same as the preset direction of the conductor 111, and the preset twisting pitch of the first core 110 and the second core 210 is 12-14 times the diameter of the power cable core 100 or the control cable core 200.

[0037] The first filler material 120 and the second filler material 220 are made of the same material, namely nylon fiber, polypropylene PP rope or high flame retardant rope.

[0038] The first non-hygroscopic wrapping tape 130, the second non-hygroscopic wrapping tape 230, and the third non-hygroscopic wrapping tape 250 are flame-retardant wrapping tapes or fiberglass cloth tapes. When wrapping, the overlap rate of the first non-hygroscopic wrapping tape 130, the second non-hygroscopic wrapping tape 230, and the third non-hygroscopic wrapping tape 250 is not less than 15%, that is, when each layer of wrapping tape is wrapped, the width of the previous layer of wrapping tape is at least 15% of the width of the wrapping tape. The first non-hygroscopic wrapping tape 130 serves to prevent the first core 110 from loosening during pre-twisting and to tighten the core 100, thus ensuring its stability. The second non-hygroscopic wrapping tape 230 is a dense polyester tape. Its function is not only to tighten the second core 210 during pre-twisting and to ensure its stability, but also to isolate the shielding layer 240 and the second core 210, preventing the soft copper wire joints in the shielding layer 240 from piercing the insulation layer 113 and forming a spark breakdown point, thereby reducing the insulation breakdown rate. The third non-hygroscopic wrapping tape 250 isolates the outer protective layer 300 and the shielding layer 240, preventing the soft copper wire joints in the shielding layer 240 from piercing the outer protective layer 300 and forming a spark breakdown point when the outer protective layer 300 is extruded.

[0039] Preferably, the first non-hygroscopic wrapping tape 130 and the third non-hygroscopic wrapping tape 250 can be PP tape or glass ribbon.

[0040] The shielding layer 240 is a metal shielding layer, which is made of soft copper wires with a diameter of 0.15mm-0.20mm crisscrossed and woven with a weaving density of 85%.

[0041] The insulating layer 113 is formed by extruding polyvinyl chloride nitrile elastomer onto the conductor 111.

[0042] The outer protective layer 300 is extruded from polyvinyl chloride butadiene silicone elastomer and is applied to the outside of the power cable core 100 and the control cable core 200.

[0043] In this application, there are 3-5 power cable cores 100, and the number of control cable cores 200 is set according to the logarithm of the control signals. In this embodiment, there are 2 sets of control cable cores 200.

[0044] The flat, flexible elevator control cable for high-rise buildings provided in this application uses nylon fiber yarn and soft copper wire in the first core 110 and the second core 210, which have good conductivity and flexibility, and can provide stable current. In addition, the insulation layer 113 and the outer protective layer 300 are made of polymer materials (polyvinyl chloride butadiene nitrile elastomer, polyvinyl chloride butadiene silicone elastomer), which have good insulation, flexibility and oil resistance, and can maintain the stability of the cable in complex environments. Compared with traditional round cables, this application has a smaller bending radius, lighter weight and higher torsional strength, making it suitable for use in elevators, especially for flexible wiring in confined spaces, improving the installation efficiency and maintenance convenience of elevator systems.

[0045] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A flat flexible bending-resistant elevator control cable suitable for high-rise buildings, characterized in that, include: The power cable core (100) includes a plurality of first wire cores (110) twisted together, and a first non-hygroscopic wrapping tape (130) is wrapped around the plurality of first wire cores (110). The area wrapped by the first non-hygroscopic wrapping tape (130) is also filled with a first filler material (120), and the first filler material (120) is used to fill the gaps formed by the first wire cores (110). The control cable core (200) includes several intertwined second cores (210), and the second cores (210) are wrapped with a second non-hygroscopic wrapping tape (230). The area wrapped by the second non-hygroscopic wrapping tape (230) is also filled with a second filler material (220). A shielding layer (240) and a third non-hygroscopic wrapping tape (250) are sequentially provided outside the second non-hygroscopic wrapping tape (230). The first core (110) and the second core (210) have the same structure, including a conductor (111), which is formed by twisting multiple soft copper wires, with a reinforcing element (112) between the multiple soft copper wires, and an insulating layer (113) is extruded over the multiple soft copper wires. The power cable core (100) and the control cable core (200) are arranged alternately in a horizontal manner, and the power cable core (100) and the control cable core (200) are also wrapped with an outer protective layer (300).

2. The flat flexible bend-insensitive elevator control cable suitable for high-rise buildings according to claim 1, characterized in that: The soft copper wire is a type 6 annealed copper wire. Multiple soft copper wires are twisted together in a preset direction and with a preset pitch to form a conductor (111). The preset direction is either S-direction or Z-direction, and the preset pitch is 12-14 times the diameter of the conductor (111).

3. The flat, flexible elevator control cable suitable for high-rise buildings according to claim 1, characterized in that: The first filler material (120) and the second filler material (220) are made of one of the following materials: nylon fiber filaments, polypropylene PP rope, or high flame retardant rope.

4. The flat flexible control cable for high-rise buildings as claimed in claim 1, wherein: The first non-hygroscopic wrapping tape (130), the second non-hygroscopic wrapping tape (230) and the third non-hygroscopic wrapping tape (250) are flame-retardant wrapping tape or fiberglass cloth tape, and the overlap rate of the first non-hygroscopic wrapping tape (130), the second non-hygroscopic wrapping tape (230) and the third non-hygroscopic wrapping tape (250) is not less than 15% when wrapping.

5. The flat flexible bend-insensitive elevator control cable suitable for high-rise buildings according to claim 1, characterized in that: The shielding layer (240) is a metal shielding layer, which is made of soft copper wires with a diameter of 0.15mm-0.20mm crisscrossed and woven with a weaving density of 85%.

6. The flat flexible bend-insensitive elevator control cable suitable for high-rise buildings according to claim 1, characterized in that: The insulating layer (113) is extruded from polyvinyl chloride nitrile elastomer material onto the conductor (111).

7. The flat flexible bend-insensitive elevator control cable suitable for high-rise buildings according to claim 1, characterized in that: The outer protective layer (300) is extruded from polyvinyl chloride butadiene silicone elastomer onto the outside of the power cable core (100) and the control cable core (200).

8. The flat flexible bend-insensitive elevator control cable suitable for high-rise buildings according to claim 1, characterized in that: The reinforcing element (112) is made of nylon fiber yarn.

9. The flat flexible bend-insensitive elevator control cable suitable for high-rise buildings according to claim 1, characterized in that: The number of power cable cores (100) is 3-5, and the number of control cable cores (200) is set according to the logarithm of the control signals.

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