Hoisting cable for high-rise building

Abstract

The utility model discloses a hoisting cable for a high-rise building, which relates to the technical field of hoisting cables and sequentially comprises an outer coating layer, an armor layer, an inner lining layer and a buffer layer from outside to inside, a plurality of groups of reinforcing ribs are wrapped in the buffer layer, a plurality of groups of wire cores are arranged in the buffer layer, a filling layer is wrapped outside each group of wire cores, and the filling layer is arranged between the outer coating layer and the inner lining layer. The wire core comprises a metal conductor, the metal conductor is concentrically provided with an insulating layer and a metal shielding layer towards the outer side in sequence, the filling layer is oval, the length of the short axis of the filling layer is 1.1 times of the diameter of the wire core, the length of the long axis of the filling layer is 1.4 times of the diameter of the wire core, and the length of the long axis of the filling layer is 1.2 times of the diameter of the wire core. The multiple groups of wire cores are circumferentially distributed by taking the axis of the buffer layer as the center, a group of reinforcing ribs are arranged at the axis of the buffer layer, and the other multiple groups of reinforcing ribs are circumferentially distributed by taking the axis of the buffer layer as the center, so that the device has the characteristic of improving the tensile strength.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting cables, in particular to a hoisting cable for high-rise buildings. Background Art

[0002] With the robust growth of my country's national economy and the accelerated pace of infrastructure construction, such as real estate development, the use of power cables as the main lines for power supply and distribution in various buildings and facilities has become a historical necessity. Therefore, construction companies, designers, and contractors are all seeking more advanced, more economical, higher-performance, smaller-space-occupied, and shorter-cycle power supply and distribution construction technologies and methods. The use of hoisting cables is a common method.

[0003] A lifting cable with the publication number CN209962739U includes four conductors, which are directly wrapped in a cross-linked polyethylene insulation layer. The conductors wrapped in the cross-linked polyethylene insulation layer are wrapped together in a tape, the tape is wrapped in an inner sheath, the inner sheath is wrapped in a steel belt armor layer, and the steel belt armor layer is wrapped in an outer sheath. It also includes a tensile wire layer, the outer surface of which is in contact with the outer surface of the cross-linked polyethylene insulation layer outside each conductor. The tensile wire layer is a fiber composite reinforced tensile layer, or the tensile wire layer is a combination of a steel wire rope and a sheath layer, the steel wire rope is wrapped in the sheath layer, and the thickness of the outer sheath is 1.3 times the thickness of the inner sheath. In the utility model, the outer surface of the tensile wire layer is in contact with the outer surface of the cross-linked polyethylene insulation layer outside each conductor.

[0004] The new type has only one tensile wire layer, which is only suitable for laying lines at a relatively low height. Its load-bearing and tensile strength cannot meet the requirements of laying lines in high-rise buildings. This phenomenon has become a problem that needs to be solved urgently by people in this field. Utility Model Content

[0005] The purpose of the present utility model is to provide a lifting cable for high-rise buildings in view of the existing technical defects, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a lifting cable for high-rise buildings, which includes an outer layer, an armor layer, an inner lining layer, and a buffer layer from the outside to the inside, wherein the buffer layer is wrapped with multiple groups of reinforcing ribs, and the buffer layer is provided with multiple groups of wire cores, and each group of the wire cores is covered with a filling layer.

[0007] The present invention further describes that the wire core includes a metal conductor, and the metal conductor is concentrically provided with an insulating layer and a metal shielding layer in sequence toward the outside.

[0008] The present invention further illustrates that the filling layer is elliptical.

[0009] The present invention further states that the short axis length of the filling layer is 1.1 times the diameter of the wire core, and the long axis length of the filling layer is 1.4 times the diameter of the wire core.

[0010] The present invention further describes that the plurality of groups of wire cores are distributed in a circle with the axis of the buffer layer as the center.

[0011] The present invention further describes that a group of reinforcing ribs are provided at the axis of the buffer layer, and the remaining groups of reinforcing ribs are distributed in a circle with the axis of the buffer layer as the center.

[0012] Compared with the prior art, the beneficial effect achieved by the present invention is that the present invention improves the overall tensile strength of the cable through the armor layer and the reinforcement ribs.

[0013] The buffer layer is used to restrict and fix the reinforcement ribs to prevent the reinforcement ribs from damaging the wire core when the cable is twisted.

[0014] Multiple groups of wire cores are divided by multiple groups of filling layers, and the metal shielding layer of the wire core is protected by the filler in the filling layer.

[0015] The structure formed by the filling layer opened through the buffer layer has a supporting effect on the cable as a whole, thereby improving the compression resistance of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] In the figure: 1. Outer layer; 2. Armor layer; 3. Lining layer; 4. Buffer layer; 5. Reinforcement ribs; 6. Filling layer; 7. Wire core; 8. Metal conductor; 9. Metal shielding layer; 10. Insulation layer. DETAILED DESCRIPTION

[0019] The following is a non-limiting detailed description of the technical solution of the present invention in conjunction with preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0020] See also Figure 1The utility model provides a technical solution: a lifting cable for high-rise buildings, which includes an outer layer 1, an armor layer 2, an inner lining layer 3, and a buffer layer 4 from the outside to the inside.

[0021] The material of the outer layer 1 includes but is not limited to polyvinyl chloride, synthetic rubber, etc., and has the characteristics of being waterproof, fireproof and flame retardant.

[0022] The outer layer 1 is wrapped with an armor layer 2, which is woven from steel tapes and is used to prevent the cable from being mechanically damaged during installation.

[0023] The armor layer 2 is wrapped with an inner lining layer 3. The material of the inner lining layer 3 includes but is not limited to polyvinyl chloride tape, non-woven linen tape, non-woven fabric tape, and impregnated paper tape. It is used to insulate, prevent corrosion or aging of the cable and protect the buffer layer 4 from being damaged by the armor layer 2.

[0024] The inner lining layer 3 wraps the buffer layer 4, and the buffer layer 4 is made of elastic foam material, including but not limited to polyester rubber and EPDM rubber, which is used to protect the wrapped wire core 7 and enhance the overall toughness of the cable.

[0025] The buffer layer 4 is wrapped with multiple groups of reinforcing ribs 5, specifically 4 groups of reinforcing ribs. Among them, one group of reinforcing ribs 5 is set at the axis of the buffer layer 4, and the remaining three groups of reinforcing ribs 5 are distributed in a circle with the axis of the buffer layer 4 as the center, which is used to improve the overall load-bearing and tensile strength of the cable.

[0026] Three groups of wire cores 7 are provided in the buffer layer 4 , and the three groups of wire cores 7 are distributed in a circle with the axis of the buffer layer 4 as the center.

[0027] Each group of wire cores 7 is covered with a filling layer 6 on the outside. The overall structure of the filling layer 6 is elliptical. The short axis length of the filling layer 6 is 1.1 times the diameter of the wire core 7, and the long axis length of the filling layer 6 is 1.4 times the diameter of the wire core 7. The materials of the filling layer 6 include but are not limited to polyester tape, tin foil tape, spun yarn, glass fiber yarn, etc.

[0028] The wire core 7 includes a metal conductor 8 , the material of which includes but is not limited to copper, aluminum, etc. An insulating layer 10 and a metal shielding layer 9 are sequentially provided on the outside of the metal conductor 8 .

[0029] The material of the metal shielding layer 9 includes but is not limited to corrugated aluminum sheath, corrugated copper sheath, etc., and has the functions of electric field shielding and waterproof sealing. The material of the insulating layer 10 includes but is not limited to polyethylene and ethylene propylene rubber.

[0030] In this embodiment, the overall tensile strength of the cable is improved by the armor layer 2 and the reinforcing ribs 5 .

[0031] The buffer layer 4 is used to restrict and fix the reinforcing ribs 5 to prevent the reinforcing ribs 5 from damaging the core 7 when the cable is twisted. At the same time, the filling layer 6 has a branching effect on multiple groups of cores 7. The filler in the filling layer 6 has a protective effect on the metal shielding layer 9 of the core 7, preventing the metal shielding layer 9 from being damaged after the cable is twisted, thereby affecting the conductive effect of the metal conductor 8.

[0032] The elliptical structure formed by the filling layer 6 has a buffering effect, thereby improving the compression resistance of the cable.

[0033] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only used to facilitate the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0034] Finally, it should be pointed out that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents. Such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A hoisting cable for high-rise buildings, comprising, from outside to inside, an outer layer (1), an armor layer (2), an inner lining layer (3), and a buffer layer (4), characterized in that: The buffer layer (4) is wrapped with multiple groups of reinforcing ribs (5), and the buffer layer (4) is provided with multiple groups of wire cores (7), and each group of wire cores (7) is covered with a filling layer (6).

2. A high-rise building hoisting cable according to claim 1, characterized in that: The wire core (7) comprises a metal conductor (8), and the metal conductor (8) is provided with an insulating layer (10) and a metal shielding layer (9) in sequence concentrically toward the outside.

3. A high-rise building hoisting cable according to claim 1, characterized in that: The filling layer (6) is elliptical.

4. A high-rise building hoisting cable according to claim 3, characterized in that: The short axis length of the filling layer (6) is 1.1 times the diameter of the wire core (7), and the long axis length of the filling layer (6) is 1.4 times the diameter of the wire core (7).

5. A high-rise building hoisting cable according to claim 4, characterized in that: The plurality of groups of wire cores (7) are distributed in a circular pattern with the axis of the buffer layer (4) as the center.

6. A high-rise building hoisting cable according to claim 5, characterized in that: A group of reinforcing ribs (5) is provided at the axis of the buffer layer (4), and the remaining groups of reinforcing ribs (5) are distributed in a circular pattern with the axis of the buffer layer (4) as the center.

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