High-strength tensile cable

Abstract

The utility model discloses a high-strength tensile cable, which comprises a protective layer, an armor layer I arranged inside the protective layer, an armor layer II arranged inside the armor layer I, an armor layer III arranged inside the armor layer II, copper conductors arranged inside the armor layer III and distributed in a central symmetry manner, insulating layers arranged outside the copper conductors, and an insulating layer arranged outside the insulating layers. The first armor layer comprises a first steel belt spirally surrounding the second armor layer, the second armor layer comprises a first steel wire belt and a second steel wire belt, and the first steel wire belt and the second steel wire belt are interwoven. According to the utility model, through the arrangement of the first armor layer, the second armor layer and the third armor layer, the cable can bear tensile force generated by natural movement of buildings such as expressways, railways and bridges when in use, the tensile strength of the cable is very high, and the first armor layer formed by the first spiral steel belt has relatively strong compression resistance and impact resistance effects, so that the cable is very convenient to use. And the cable is more reliable in use.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a high-strength tensile cable. Background Art

[0002] At present, with the development of science and technology, the use of cables has greatly increased. However, due to the different working environments in various industries, a large number of cables are also needed in the construction of highways, railways and bridges, so that cables play the role of power supply or communication.

[0003] Chinese Patent No. 201820731417.9 provides a corrosion-resistant cable, which belongs to the field of cable technology. A corrosion-resistant cable includes a filling core, a cable core, an inner sheath, a first anti-corrosion layer, and an outer sheath from the inside to the outside. The inner surface of the inner sheath is annularly provided with multiple arc frames, each of which forms a cavity with the inner surface of the inner sheath, and a cable core is embedded in each cavity. The filling core is circumscribed with multiple arc frames, and each cable core includes multiple conductors, an insulating layer wrapped around the multiple conductors, and a second anti-corrosion layer wrapped around the insulating layer. Although the cable in the above patent can play a corrosion-resistant effect, its tensile performance is weak when it is used in highways, railways and bridges. The natural movement of buildings such as highways, railways and bridges will produce a large tensile force on the cable, which causes the cable to be easily damaged when used in highways, railways and bridges. Therefore, it is urgent to design a high-strength tensile cable to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a high-strength tensile cable to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-strength tensile cable comprises a protective layer, wherein an armor layer 1 is arranged inside the protective layer, an armor layer 2 is arranged inside the armor layer 1, an armor layer 3 is arranged inside the armor layer 2, a copper conductor symmetrically distributed in the center is arranged inside the armor layer 3, an insulating layer is arranged outside the copper conductor, the armor layer 1 comprises a steel belt 1 spirally wound around the outside of the armor layer 2, the armor layer 2 comprises a steel belt 1 and a steel belt 2, and the steel belt 1 and the steel belt 2 are interwoven with each other.

[0007] Furthermore, a nylon layer 1 is provided between the protective layer and the armor layer 1, and a nylon layer 2 is provided between the armor layer 1 and the armor layer 2.

[0008] Furthermore, a filler is provided between the armor layer three and the copper conductor, and a waterproof layer is provided between the armor layer three and the filler.

[0009] Furthermore, the armor layer three includes steel belt two, the steel belt two is centrally symmetrically distributed, and the steel belt two is located between the waterproof layer and the nylon layer two.

[0010] Furthermore, the cross-section of the steel strip 1 is rectangular, and the cross-section of the steel strip 2 is trapezoidal.

[0011] Furthermore, an optical cable is arranged at the center of the filler, and a cladding is arranged on the outer wall of the optical cable.

[0012] In the above technical scheme, the utility model provides a high-strength tensile cable, which has the following beneficial effects: by setting the armor layer one, the armor layer two and the armor layer three, the cable can withstand the tension generated by the natural movement of buildings such as highways, railways and bridges when in use, so that the tensile strength of the cable is very high, avoiding the cable from being damaged by the tension, and the armor layer one formed by the spiral steel belt one has strong compression and impact resistance, making the cable more reliable when in use; by setting the nylon layer one and the nylon layer two, on the one hand, the tensile strength of the cable is further enhanced, and on the other hand, the armor layer one, the armor layer two and the armor layer three can be isolated to prevent the three from wearing each other; by setting the armor layer two formed by interweaving the steel belt one and the steel belt two, the armor layer two has good softness, ensuring the flexibility of the cable when winding, and at the same time having a good restraining effect on the annularly distributed steel belt two. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 The present invention is a schematic diagram of the main structure of a high-strength tensile cable embodiment provided by the present invention.

[0015] Figure 2 The present invention is a schematic cross-sectional structure diagram of a high-strength tensile cable embodiment provided by the utility model.

[0016] Figure 3 A schematic diagram of three structures of the armor layer provided for an embodiment of a high-strength tensile cable of the utility model.

[0017] Description of reference numerals:

[0018] 1 protective layer, 2 armor layer 1, 3 nylon layer 1, 4 armor layer 2, 5 nylon layer 2, 6 armor layer 3, 7 waterproof layer, 8 copper conductor, 9 insulation layer, 10 filler, 11 cladding, 12 optical cable, 13 steel belt 1, 14 steel belt 1, 15 steel belt 2, 16 steel belt 2. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] like Figure 1-3 As shown, a high-strength tensile cable provided by an embodiment of the utility model includes a protective layer 1, an armor layer 2 is arranged inside the protective layer 1, an armor layer 2 is arranged inside the armor layer 2, an armor layer 3 6 is arranged inside the armor layer 2 4, copper conductors 8 distributed in a central symmetrical manner are arranged inside the armor layer 3 6, an insulating layer 9 is arranged outside the copper conductor 8, the armor layer 1 2 includes a steel belt 13 spirally wrapped around the outside of the armor layer 2 4, the armor layer 2 4 includes a steel belt 1 14 and a steel belt 2 15, and the steel belt 1 14 and the steel belt 2 15 are interwoven with each other.

[0021] Specifically, in this embodiment, the protective layer 1 includes a protective layer 1, which is made of a high-density polyethylene base resin specially used for the sheath material, added with high-quality carbon black masterbatch and other related processing aids, and mixed and granulated. The protective layer 1 has strong resistance to ultraviolet radiation aging and heat aging. The protective layer 1 is provided with an armor layer 1 2 inside, and an armor layer 2 4 is provided inside the armor layer 1 2. The armor layer 2 4 is provided inside the armor layer 2 4. The armor layer 3 6 is provided inside the armor layer 2. The armor layer 1 2, the armor layer 2 4 and the armor layer 3 6 make the cable have a strong tensile effect. The armor layer 3 6 is provided inside. Copper conductors 8 distributed symmetrically with the center are provided. The copper conductor 8 is the cable core of the cable, which plays the role of transmitting electricity. An insulating layer 9 is arranged on the outside of the copper conductor 8. The insulating layer 9 is made of cross-linked polyethylene insulating material, so that the surface of the copper conductor 8 is insulated from the outside. The armor layer 2 includes a steel belt 13 spirally wrapped around the outside of the armor layer 2 4. The spiral steel belt 13 has strong tensile and compressive properties. The armor layer 2 4 includes a steel belt 14 and a steel belt 2 15. The steel belt 14 and the steel belt 2 15 are interwoven with each other. The steel belt 14 and the steel belt 2 15 are both formed by a number of steel wires, so that the armor layer 2 4 has good softness.

[0022] The utility model provides a high-strength tensile cable. By arranging the armor layer 1 2, the armor layer 2 4 and the armor layer 3 6, the cable can withstand the tension generated by the natural movement of buildings such as highways, railways and bridges when in use, so that the tensile strength of the cable is very high, and the armor layer 1 2 formed by the spiral steel belt 13 has strong compression and impact resistance, so that the cable is more reliable when in use.

[0023] In another embodiment provided by the utility model, a nylon layer 1 3 is provided between the protective layer 1 and the armor layer 1 2, and a nylon layer 2 5 is provided between the armor layer 1 2 and the armor layer 2 4. The nylon layer 1 3 and the nylon layer 2 5 can further enhance the tensile strength of the cable, and can isolate the armor layer 1 2, the armor layer 2 4 and the armor layer 3 6 to prevent mutual wear between the three. A filler 10 is provided between the armor layer 3 6 and the copper conductor 8, and the filler 10 is made of polypropylene material. A waterproof layer 7 is provided between the armor layer 3 6 and the filler 10, and the waterproof layer 7 is made of rubber material, so that the cable has a strong anti-water effect. The armor layer 3 6 includes a steel belt 2 16 The steel strips 16 are centrally symmetrically distributed, and the steel strips 16 are located between the waterproof layer 7 and the nylon layer 5. The steel strips 16 formed in a centrally symmetrical distribution enable the armor layer 3 6 to withstand a strong tensile force; the cross-section of the steel strip 13 is rectangular, and the cross-section of the steel strip 16 is trapezoidal. The trapezoidal steel strips 16 are arranged more densely, so that the gaps between them are required, thereby making the formed armor layer 3 6 more dense; an optical cable 12 is arranged at the center of the filler 10. The use of the optical cable 12 enables the cable to have an information transmission function. The outer wall of the optical cable 12 is provided with a cladding 11. The cladding 11 can reduce the refraction of light in the optical cable 12 to the outside, so that the efficiency of information transmission by the cable is improved.

[0024] Working principle: the armor layer 1 2, armor layer 2 4 and armor layer 3 6 are located inside the cable protective layer 1, so that the cable can withstand the tension generated by the natural movement of buildings such as highways, railways and bridges when in use, so that the tensile strength of the cable is very high, and the armor layer 1 2 formed by the spiral steel belt 13 has strong compression and impact resistance, making the cable more reliable when in use; the nylon layer 1 3 and nylon layer 2 5 are set, on the one hand, the tensile strength of the cable is further enhanced, and on the other hand, the armor layer 1 2, armor layer 2 4 and armor layer 3 6 can be isolated to prevent mutual wear between the three; the armor layer 2 4 formed by the interweaving of the steel belt 1 14 and the steel belt 2 15 has good softness, which ensures the flexibility of the cable when winding, and at the same time has a good restraining effect on the annularly distributed steel belt 2 16.

[0025] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-strength tensile cable, characterized in that: The invention comprises a protective layer (1), wherein an armor layer 1 (2) is arranged inside the protective layer (1), an armor layer 2 (4) is arranged inside the armor layer 1 (2), an armor layer 3 (6) is arranged inside the armor layer 2 (4), a copper conductor (8) distributed in a centrally symmetrical manner is arranged inside the armor layer 3 (6), an insulating layer (9) is arranged outside the copper conductor (8), the armor layer 1 (2) comprises a steel belt 1 (13) spirally wound around the outside of the armor layer 2 (4), the armor layer 2 (4) comprises a steel belt 1 (14) and a steel belt 2 (15), and the steel belt 1 (14) and the steel belt 2 (15) are interwoven with each other.

2. A high-strength tensile cable according to claim 1, characterized in that: A nylon layer one (3) is provided between the protective layer (1) and the armor layer one (2), and a nylon layer two (5) is provided between the armor layer one (2) and the armor layer two (4).

3. A high-strength tensile cable according to claim 2, characterized in that: A filler (10) is provided between the armor layer three (6) and the copper conductor (8), and a waterproof layer (7) is provided between the armor layer three (6) and the filler (10).

4. A high-strength tensile cable according to claim 3, characterized in that: The armor layer three (6) includes steel strips two (16), which are centrally symmetrically distributed and located between the waterproof layer (7) and the nylon layer two (5).

5. A high-strength tensile cable according to claim 4, characterized in that: The cross section of the first steel strip (13) is rectangular, and the cross section of the second steel strip (16) is trapezoidal.

6. A high-strength tensile cable according to claim 3, characterized in that: An optical cable (12) is arranged at the center of the filler (10), and a cladding (11) is arranged on the outer wall of the optical cable (12).

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