Drag chain flexible cable with fireproof function

Abstract

The utility model provides a drag chain flexible cable with a fireproof function. The drag chain flexible cable comprises a protective layer; the fireproof coating layer is arranged on the outer side face of the protective layer, and wear-resistant strips are arranged on the outer side face of the fireproof coating layer; the flexible carbon fiber composite layer is arranged on the inner side surface of the protective layer; and the first insulating layer is arranged in the flexible carbon fiber composite layer, and a glass fiber layer is arranged in the first insulating layer. According to the drag chain flexible cable with the fireproof function, provided by the utility model, the fireproof coating layer is arranged on the outer side surface of the protective layer, so that the cable can be prevented from burning together with other transmission lines when a fire disaster occurs outside, and thus the whole cable is protected, and the service life of the cable is prolonged. And the damage to the cable when other transmission lines which are installed together generate a fire disaster is avoided, so that the subsequent maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drag chain cables, in particular to a drag chain flexible cable with a fire prevention function. Background Technique

[0002] In occasions where equipment units need to move back and forth, in order to prevent cable entanglement, abrasion, pulling off, hanging, and scattering, the cable is often placed in a cable drag chain to protect the cable, and the cable can also move back and forth with the drag chain. This highly flexible special cable that can move back and forth with the drag chain without being easily worn is called a drag chain cable, and is usually also called a drag cable or a tank chain cable.

[0003] For example, in the patent application with the publication number CN 213905003 U in the prior art, the cable includes a wear-resistant layer, a protective layer is arranged on the inner surface of the wear-resistant layer, signal lines are arranged on both the upper and lower sides of the inner cavity of the protective layer, a fireproof and heat-insulating layer is wrapped on the outer surface of the signal lines. By arranging the protective layer and the wear-resistant layer, the wires and signal lines in the inner cavity of the cable are protected. By the fireproof and heat-insulating layer, the outer surface of the signal lines is fireproof and heat-insulating. By the glass fiber layer, the wires are fireproof and heat-insulating. By the first insulating layer and the second insulating layer, the insulation effect of the signal lines and the wires is improved. By the mica fire-resistant layer, the fire resistance of the glass fiber layer is improved. By the silica gel layer, the horizontal tensile ability of the signal lines is improved. By arranging the above structures, it has the advantages of better fireproof and heat-insulating effects, solves the problem of poor fireproof and heat-insulating effects existing in the existing drag chain cables, and thus improves the safety effect of later use.

[0004] This cable avoids the wires and signal lines from causing a fire due to a fault by arranging a glass fiber layer and a fireproof and heat-insulating layer on the outer sides of the wires and the signal lines respectively. However, when the cable is in use, it needs to be installed together with multiple other cables. Therefore, when other transmission lines fail and catch fire, the cable will also catch fire simultaneously, increasing the subsequent maintenance cost.

[0005] Therefore, it is necessary to provide a drag chain flexible cable with a fire prevention function to solve the above technical problems. Content of the Utility Model

[0006] The utility model provides a drag chain flexible cable with a fire prevention function, which solves the problem that when a fire occurs outside, the cable is damaged, increasing the maintenance cost.

[0007] To solve the above technical problems, a drag chain flexible cable with a fire prevention function provided by the utility model includes:

[0008] A protective layer;

[0009] A fireproof coating layer is provided on the outer side of the protective layer, and wear-resistant strips are provided on the outer side of the fireproof coating layer;

[0010] A flexible carbon fiber composite layer is provided on the inner side of the protective layer;

[0011] A first insulating layer is provided inside the flexible carbon fiber composite layer. A fiberglass layer is provided inside the first insulating layer, and a wire is provided inside the fiberglass layer;

[0012] A second insulating layer is provided inside the flexible carbon fiber composite layer. A fireproof and heat-insulating layer is provided inside the second insulating layer, and a signal wire is provided inside the fireproof and heat-insulating layer.

[0013] Preferably, the first insulating layer and the second insulating layer are arranged adjacent to each other, and the first insulating layer and the second insulating layer are separated by the flexible carbon fiber composite layer.

[0014] Preferably, a plurality of the first insulating layers and a plurality of the second insulating layers are provided.

[0015] Preferably, a plurality of the fireproof and heat-insulating layers and a plurality of the fiberglass layers are also provided.

[0016] Preferably, a plurality of the wear-resistant strips are provided and are evenly arranged on the outer side of the fireproof coating layer.

[0017] Preferably, a rubber sleeve is provided inside the flexible carbon fiber composite layer, and a steel wire rope is provided inside the rubber sleeve.

[0018] Preferably, the rubber sleeve is arranged at the central position of the flexible carbon fiber composite layer.

[0019] Compared with the related art, a drag chain flexible cable with a fireproof function provided by the present utility model has the following beneficial effects:

[0020] The present utility model provides a drag chain flexible cable with a fireproof function. By providing a fireproof coating layer on the outer side of the protective layer, when a fire occurs outside, the cable can be prevented from burning together with other transmission lines, thereby protecting the overall cable. When a fire occurs in other installed transmission lines, damage to the cable can be avoided, thereby reducing the subsequent maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a first embodiment of a drag chain flexible cable with a fireproof function provided by the present utility model;

[0022] Figure 2 isFigure 1 Schematic diagram of the end face structure shown

[0023] Figure 3 Schematic diagram of the structure of the second embodiment of a drag chain flexible cable with fire prevention function provided by the present utility model

[0024] Reference numerals in the figure: 1, fireproof coating layer; 2, wear-resistant strip; 3, protective layer; 4, flexible carbon fiber composite layer; 5, first insulating layer; 6, fiberglass layer; 7, wire; 8, second insulating layer; 9, fireproof and heat-insulating layer; 10, signal wire; 11, rubber sleeve; 12, steel wire rope Specific embodiments

[0025] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments

[0026] First embodiment

[0027] Please refer to Figure 1 , Figure 2 , wherein Figure 1 Schematic diagram of the structure of the first embodiment of a drag chain flexible cable with fire prevention function provided by the present utility model Figure 2 is Figure 1 Schematic diagram of the end face structure shown. A drag chain flexible cable with fire prevention function includes: a protective layer 3

[0028] A fireproof coating layer 1, the fireproof coating layer 1 is arranged on the outer side surface of the protective layer 3, and a wear-resistant strip 2 is arranged on the outer side surface of the fireproof coating layer 1

[0029] A flexible carbon fiber composite layer 4, the flexible carbon fiber composite layer 4 is arranged on the inner side surface of the protective layer 3

[0030] A first insulating layer 5, the first insulating layer 5 is arranged inside the flexible carbon fiber composite layer 4, a fiberglass layer 6 is arranged inside the first insulating layer 5, and a wire 7 is arranged inside the fiberglass layer 6

[0031] A second insulating layer 8, the second insulating layer 8 is arranged inside the flexible carbon fiber composite layer 4, a fireproof and heat-insulating layer 9 is arranged inside the second insulating layer 8, and a signal wire 10 is arranged inside the fireproof and heat-insulating layer 9

[0032] The fireproof coating layer 1 is an intumescent fireproof coating, which will expand to form a thick heat-insulating carbon layer when encountering fire, or a non-intumescent fireproof coating, which prevents the fire through its own high-temperature resistance and heat-insulating effect

[0033] The wear-resistant strips 2 are provided on the outer side of the fireproof coating layer 1, so as to avoid friction with the surface of the cable when the drag chain moves, causing wear of the fireproof coating layer 1 and affecting the fireproof effect.

[0034] The first insulating layer 5 and the second insulating layer 8 are arranged adjacent to each other, and are spaced by the flexible carbon fiber composite layer 4 between the first insulating layer 5 and the second insulating layer 8.

[0035] A plurality of the first insulating layers 5 and a plurality of the second insulating layers 8 are provided.

[0036] A plurality of the fireproof and heat-insulating layers 9 and a plurality of the glass fiber layers 6 are also provided.

[0037] A plurality of the wear-resistant strips 2 are provided and are evenly arranged on the outer side of the fireproof coating layer 1.

[0038] The wear-resistant strip 2 is made of ultra-high molecular weight polyethylene. Polyethylene is a thermoplastic resin obtained by polymerization of ethylene. Industrially, it also includes copolymers of ethylene and a small amount of α-olefins. Polyethylene is odorless, non-toxic, feels like wax, has excellent low-temperature resistance, good chemical stability, can resist the erosion of most acids and alkalis, is insoluble in general solvents at room temperature, has low water absorption, and excellent electrical insulation;

[0039] The protective layer 3 is made of rubber. Rubber refers to a highly elastic polymer material with reversible deformation, which is elastic at room temperature, can produce large deformation under a small external force, and can return to its original state after removing the external force;

[0040] The fireproof and heat-insulating layer 9 is made of ceramic fiber. By providing the fireproof and heat-insulating layer 9, the fireproof and heat-insulating effect of the signal wire 10 is improved. Ceramic fiber is a fibrous lightweight refractory material, which has the advantages of light weight, high temperature resistance, good thermal stability, low thermal conductivity, small specific heat and resistance to mechanical vibration, etc.;

[0041] The first insulating layer 5 and the second insulating layer 8 are made of synthetic resin. By providing the first insulating layer 5 and the second insulating layer 8, the insulation effect between the signal wire 10 and the wire 7 is improved. Synthetic resin is a class of polymer synthesized artificially, which is a viscous liquid or a solid that can be softened by heating. It usually has a temperature range of melting or softening when heated, can be in a plastic flow state under the action of external force, and some properties are similar to natural resin. The most important application of synthetic resin is to manufacture plastics;

[0042] By providing the flexible carbon fiber composite layer 4, the high-temperature resistance effect between the first insulating layer 5 and the second insulating layer 8 is improved.

[0043] The working principle of a kind of drag chain flexible cable with fireproof function provided by the utility model is as follows:

[0044] When a fire occurs externally, the fireproof coating layer 1 can play a role in protecting the cable, preventing damage caused by the combustion of the cable, and a wear-resistant strip 2 is provided on the outer side of the fireproof coating layer 1. In this way, during use, friction between the fireproof coating layer 1 and the drag chain is avoided, and damage to the fireproof coating layer 1 is prevented.

[0045] Compared with the related technology, a drag chain flexible cable with a fireproof function provided by the present utility model has the following beneficial effects:

[0046] By providing a fireproof coating layer 1 on the outer side of the protective layer 3, when a fire occurs externally, the cable can be prevented from burning together with other transmission lines, thereby protecting the entire cable. When a fire occurs in other installed transmission lines, damage to the cable can be avoided, thereby reducing the subsequent maintenance cost.

[0047] Second Embodiment

[0048] Please refer to Figure 3 Based on a drag chain flexible cable with a fireproof function provided in the first embodiment of the present application, a second embodiment of the present application proposes another drag chain flexible cable with a fireproof function. The second embodiment is only a preferred manner of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0049] Specifically, the difference of a drag chain flexible cable with a fireproof function provided in the second embodiment of the present application is that a rubber sleeve 11 is provided inside the flexible carbon fiber composite layer 4, and a steel wire rope 12 is provided inside the rubber sleeve 11.

[0050] The rubber sleeve 11 is provided at the central position of the flexible carbon fiber composite layer 4.

[0051] By providing a rubber sleeve 11 on the outer side of the steel wire rope 12, during use, friction between the outer side of the steel wire rope 12 and the outer side of the flexible carbon fiber composite layer 4 can be avoided, and damage to the flexible carbon fiber composite layer 4 can be prevented.

[0052] The working principle of a drag chain flexible cable with a fireproof function provided by the present utility model is as follows:

[0053] During use, a rubber sleeve 11 is wrapped around the outer side of the steel wire rope 12, and then the rubber sleeve 11 is installed inside the flexible carbon fiber composite layer 4.

[0054] Compared with the related technology, a drag chain flexible cable with a fireproof function provided by the present utility model has the following beneficial effects:

[0055] Through the cooperation of the rubber sleeve 11 and the steel wire rope 12, when in use, the rubber sleeve 11 and the steel wire rope 12 are arranged inside the flexible carbon fiber composite layer 4, thereby increasing the pulling strength of the cable.

[0056] The above are only embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall similarly be included in the patent protection scope of the present invention.

Claims

1. A fireproof drag chain flexible cable, characterized in that: include: Protective layer; A fire retardant coating layer, wherein the fire retardant coating layer is arranged on the outer side of the protective layer, and the outer side of the fire retardant coating layer is provided with wear-resistant strips; A flexible carbon fiber composite layer, wherein the flexible carbon fiber composite layer is arranged on the inner side of the protective layer; A first insulating layer, wherein the first insulating layer is arranged inside the flexible carbon fiber composite layer, a glass fiber layer is arranged inside the first insulating layer, and a wire is arranged inside the glass fiber layer; A second insulating layer, wherein the second insulating layer is arranged inside the flexible carbon fiber composite layer, a fireproof and heat-insulating layer is arranged inside the second insulating layer, and a signal line is arranged inside the fireproof and heat-insulating layer.

2. A fireproof drag chain flexible cable according to claim 1, characterized in that: The first insulating layer and the second insulating layer are arranged adjacent to each other, and the first insulating layer and the second insulating layer are spaced apart by the flexible carbon fiber composite layer.

3. A fireproof drag chain flexible cable according to claim 2, characterized in that: A plurality of the first insulating layer and a plurality of the second insulating layer are provided.

4. A fireproof drag chain flexible cable according to claim 3, characterized in that: The fireproof heat insulation layer and the glass fiber layer are also provided in plurality.

5. A fireproof drag chain flexible cable according to claim 4, characterized in that: The wear-resistant strips are provided in plurality and are evenly arranged on the outer side of the fire-retardant coating layer.

6. The fireproof drag chain flexible cable according to claim 1, characterized in that: A rubber sleeve is arranged inside the flexible carbon fiber composite layer, and a steel wire rope is arranged inside the rubber sleeve.

7. A fireproof drag chain flexible cable according to claim 6, characterized in that: The rubber sleeve is arranged at the center of the flexible carbon fiber composite layer.

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