Fireproof cable

Abstract

The utility model discloses a fireproof cable, which comprises a first insulating sheath and is characterized in that a plurality of wire cores are arranged in the first insulating sheath, hollow pipes are arranged among the plurality of wire cores, a second insulating sheath is fixedly sleeved on the outer side of the wire cores, a second fireproof layer is fixedly sleeved on the outer side of the second insulating sheath, and a second fireproof layer is fixedly sleeved on the outer side of the second fireproof layer. A first fireproof layer sleeves the outer sides of the plurality of wire cores, the outer surfaces of which are fixedly sleeved with the second insulating sheaths and the second fireproof layers, glass fiber layers are filled between the first fireproof layer and the plurality of wire cores, the outer surfaces of which are fixedly sleeved with the second insulating sheaths and the second fireproof layers, and a corrosion-resistant layer fixedly sleeves the outer side of the first fireproof layer; and a water-blocking filling layer is filled between the corrosion-resistant layer and the first insulating sheath. According to the utility model, the second fireproof layer is arranged, so that the fireproof capability among the plurality of wire cores is greatly enhanced, and the first fireproof layer fixedly sleeves the outer side of the glass fiber layer, so that the fireproof capability of the cable is further enhanced.

Description

Technical Field

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

[0002] Cables are made of one or more mutually insulated conductors and an outer insulating protective layer. They are wires that transmit electricity or information from one place to another. With the rapid development of electricity, higher requirements are needed for cable quality. At present, many ordinary cables are in use. Because the design of ordinary cables does not take into account greater fire resistance in the application environment, the fire resistance is insufficient and cannot meet the special requirements of users. For this reason, we propose a fire-proof cable to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a fireproof cable to solve the above-mentioned deficiencies in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire-proof cable, comprising: a first insulating sheath, characterized in that: a plurality of wire cores are arranged in the first insulating sheath, empty tubes are arranged between the plurality of wire cores, a second insulating sheath is fixedly sleeved on the outer side of the wire core, a second fireproof layer is fixedly sleeved on the outer side of the second insulating sheath, a plurality of wire cores whose outer surfaces are fixedly sleeved with the second insulating sheath and the second fireproof layer are sleeved on the outer side with the first fireproof layer, a glass fiber layer is filled between the first fireproof layer and the plurality of wire cores whose outer surfaces are fixedly sleeved with the second insulating sheath and the second fireproof layer, a corrosion-resistant layer is fixedly sleeved on the outer side of the first fireproof layer, and a water-blocking filling layer is filled between the corrosion-resistant layer and the first insulating sheath.

[0005] Furthermore, the first fireproof layer is formed by winding a mica tape around a glass fiber layer.

[0006] Furthermore, the second fireproof layer is formed by winding a mica tape around a glass fiber layer.

[0007] Furthermore, the water-blocking filling layer is formed by winding a water-blocking tape around the corrosion-resistant layer.

[0008] Furthermore, the material of the corrosion-resistant layer is polyethylene (PE).

[0009] In the above technical solution, the fireproof cable provided by the utility model has the following beneficial effects:

[0010] 1. The utility model greatly enhances the fireproof capability between multiple cores by arranging a second insulating outer skin and a second fireproof layer on the outside of the core, thereby avoiding the problem of short circuit and fire caused by high temperature between multiple cores. The fireproof capability of the cable is further enhanced by fixing the first fireproof layer on the outside of the glass fiber layer.

[0011] 2. By setting empty tubes between multiple wire cores, the empty tubes are made of polyethylene (PE) to enhance the mechanical strength of the cable.

[0012] 3. By setting a water-blocking filling layer, moisture can be prevented from penetrating along the cable longitudinally, ensuring the normal operation of the cable in a humid environment or underwater environment; by setting a corrosion-resistant layer, the cable can be prevented from being corroded in harsh environments such as humidity, acid and alkali, thereby extending the service life of the cable.

[0013] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0014] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 A schematic diagram of the structure provided for an embodiment of the utility model;

[0017] Figure 2 A plan view provided for an embodiment of the utility model.

[0018] Description of reference numerals:

[0019] 1. First insulating outer skin; 2. Water-blocking filling layer; 3. Corrosion-resistant layer; 4. First fireproof layer; 5. Wire core; 6. Second insulating outer skin; 7. Second fireproof layer; 8. Empty tube; 9. Glass fiber layer. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0021] Please refer to 1-2, a fire-proof cable, comprising: a first insulating sheath 1, characterized in that: a plurality of wire cores 5 are arranged in the first insulating sheath 1, an empty tube 8 is arranged between the plurality of wire cores 5, a second insulating sheath 6 is fixedly sleeved on the outer side of the wire core 5, a second fireproof layer 7 is fixedly sleeved on the outer side of the second insulating sheath 6, a first fireproof layer 4 is sleeved on the outer side of the plurality of wire cores 5 whose outer surfaces are fixedly sleeved with the second insulating sheath 6 and the second fireproof layer 7, a glass fiber layer 9 is filled between the first fireproof layer 4 and the plurality of wire cores 5 whose outer surfaces are fixedly sleeved with the second insulating sheath 6 and the second fireproof layer 7, a corrosion-resistant layer 3 is fixedly sleeved on the outer side of the first fireproof layer 4, and a water-blocking filling layer 2 is filled between the corrosion-resistant layer 3 and the first insulating sheath 1.

[0022] Specifically, the utility model greatly enhances the fireproof capability between the multiple wire cores 5 by arranging the second insulating outer skin 6 and the second fireproof layer 7 on the outside of the wire core 5, thereby avoiding the problem of short circuit ignition caused by high temperature between the multiple wire cores 5. The fireproof capability of the cable is further enhanced by fixing the first fireproof layer 4 on the outside of the glass fiber layer 9. By arranging an empty tube 8 between the multiple wire cores 5, the empty tube 8 is made of polyethylene PE material, thereby enhancing the mechanical strength of the cable. By arranging the water-blocking filling layer 2, moisture can be prevented from penetrating along the longitudinal direction of the cable, thereby ensuring the normal operation of the cable in a humid environment or underwater environment; by arranging the corrosion-resistant layer 3, the cable can be prevented from being corroded in harsh environments such as humidity, acid and alkali, thereby extending the service life of the cable.

[0023] Furthermore, the first fireproof layer 4 is formed by winding a mica tape around the glass fiber layer 9 .

[0024] Specifically, the mica tape has good insulation performance and high temperature resistance, and can improve the insulation strength and fire resistance of the cable. The setting of the double-layer mica tape in the cable greatly improves the fire resistance of the cable.

[0025] Furthermore, the second fireproof layer 7 is formed by winding a mica tape around the glass fiber layer 9 .

[0026] Specifically, the glass fiber layer 9 is made of glass fiber, which has excellent fire resistance, can maintain structural integrity in high temperature environments, effectively resist the invasion of flames, provide reliable fire protection for cables, have good insulation properties, ensure the electrical insulation effect of cables, prevent leakage and short circuit and other faults, enhance the mechanical strength of cables, enable them to withstand certain external forces such as stretching, bending and extrusion, and are not easily corroded by chemical substances, and can adapt to various complex environmental conditions.

[0027] Furthermore, the water-blocking filling layer 2 is formed by winding a water-blocking tape around the corrosion-resistant layer 3 .

[0028] Specifically, the water-blocking tape can prevent moisture from penetrating along the longitudinal direction of the cable, ensuring the normal operation of the cable in a humid environment or underwater environment.

[0029] Furthermore, the material of the corrosion-resistant layer 3 is polyethylene PE.

[0030] Specifically, polyethylene PE has high chemical stability and can effectively resist corrosion from a variety of chemical substances.

[0031] In the utility model, the corrosion-resistant layer 3 and the glass fiber layer 9 both have excellent corrosion resistance and can enhance the mechanical strength of the cable; the first fireproof layer 4, the second fireproof layer 7 and the glass fiber layer 9 all have good insulation performance and high temperature resistance, which can protect the cable when used in harsh environments.

[0032] 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 fireproof cable, comprising: A first insulating sheath (1), characterized in that: a plurality of wire cores (5) are arranged inside the first insulating sheath (1), an empty tube (8) is arranged between the plurality of wire cores (5), a second insulating sheath (6) is fixedly sleeved on the outer side of the wire core (5), a second fireproof layer (7) is fixedly sleeved on the outer side of the second insulating sheath (6), a first fireproof layer (4) is sleeved on the outer side of a plurality of wire cores (5) whose outer surfaces are fixedly sleeved with the second insulating sheath (6) and the second fireproof layer (7), a glass fiber layer (9) is filled between the first fireproof layer (4) and the plurality of wire cores (5) whose outer surfaces are fixedly sleeved with the second insulating sheath (6) and the second fireproof layer (7), a corrosion-resistant layer (3) is fixedly sleeved on the outer side of the first fireproof layer (4), and a water-blocking filling layer (2) is filled between the corrosion-resistant layer (3) and the first insulating sheath (1).

2. A fireproof cable according to claim 1, characterized in that: The first fireproof layer (4) is formed by winding a mica tape around the glass fiber layer (9).

3. A fireproof cable according to claim 1, characterized in that: The second fireproof layer (7) is formed by winding a mica tape around the glass fiber layer (9).

4. A fireproof cable according to claim 1, characterized in that: The water-blocking filling layer (2) is formed by winding a water-blocking tape around the outside of the corrosion-resistant layer (3).

5. A fireproof cable according to claim 1, characterized in that: The material of the corrosion-resistant layer (3) is polyethylene (PE).

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