CN212587243U

CN212587243U - Fireproof tensile-resistant cable

Info

Publication number: CN212587243U
Application number: CN202021606041.2U
Authority: CN
Inventors: 宁丽婵
Original assignee: Zhongshang Cable Group Co ltd
Current assignee: Zhongshang Cable Group Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-02-23
Anticipated expiration: 2030-08-05

Abstract

The utility model belongs to the technical field of cables, in particular to a fireproof tensile-resistant cable, which comprises a conductor, wherein the surface of the conductor is fixedly connected with an insulating layer, and the surface of the insulating layer is fixedly connected with an inner insulating layer; the utility model discloses, through cutting off the lag top layer, can spill the screw thread, be convenient for and another lag inside screw thread threaded connection, realize the high-speed joint purpose between the cable, be rubber through setting up wear-resisting ball material, improve the elasticity of cable itself when can increase wear resistance, the material through setting up first flame retardant coating is fire-resistant mica tape, be formed by the preparation of mica tape machine, a fire-resistant insulating material, good high temperature resistance and fire resistance can have, the device adopts the cooperation between each structure, the fire prevention and the tensile resistance performance of cable have been strengthened greatly, the connection between the cable of being convenient for simultaneously uses, whole device reasonable in design, high durability and convenient use, therefore, the clothes hanger is strong in practicability.

Description

Fireproof tensile-resistant cable

Technical Field

The utility model belongs to the technical field of the cable, concretely relates to stretch resistance cable of fire prevention.

Background

Conventional cables are typically rope-like cables made by stranding several or several groups of conductors, each group being insulated from one another and often twisted around a center, and covered with a highly insulating covering over the entire outside, the cables being characterized by internal electrical conduction and external insulation.

At present, the wear resistance of most shells of the existing used cables is poor, the tensile resistance is poor, the cables are extremely easy to damage and leak, the service life of the cables is not guaranteed, the use safety is guaranteed, the butt joint between the cables is troublesome, and great inconvenience is brought to the use.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a stretch resistance cable of fire prevention has the characteristics that the fire prevention is effectual and the stretch resistance performance is good.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-resistant stretching resistance cable, includes the conductor, the fixed surface of conductor is connected with the insulating layer, the fixed surface of insulating layer is connected with interior isolation layer, the fixed surface of interior isolation layer is connected with the insulating layer, the first flame retardant coating of fixed surface of interior isolation layer is connected with, the fixed surface of first flame retardant coating is connected with at a distance from the oxygen layer, the fixed surface that separates the oxygen layer is connected with the second flame retardant coating, the stretching resistance steel wire has been cup jointed on the surface of second flame retardant coating, the surface of stretching resistance steel wire is cup jointed the elastic material filling layer, the fixed surface of elastic material filling layer is connected with the lag, the fixed surface of lag is connected with a plurality of wear-resisting ball.

Preferably, the surface of the protective sleeve is provided with anti-skid grains, and the wear-resistant balls are made of rubber.

Preferably, the insulating layer and the protective sleeve are both made of soft PVC insulating materials.

Preferably, the protecting jacket is internally provided with threads, and the oxygen insulation layer is made of flame-retardant polyurethane materials.

Preferably, the first fireproof layer is made of a fireproof mica tape, and the second fireproof layer is made of a high-density polyethylene material.

Preferably, the conductor is a stranded copper conductor, and the elastic material filling layer is formed by filling an elastic rubber material.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, through cutting off the lag top layer, can spill the screw thread, be convenient for with the inside screw thread threaded connection of another lag, realize the quick connection purpose between the cable, through setting up wear-resisting ball material and being rubber, can improve the elasticity of cable itself when increasing wear resistance, the tensile force performance of reinforcing cable, through setting up the material of first flame retardant coating and being fire-resistant mica tape, be made by mica tape machine, be a fire-resistant insulating material, have good high temperature resistance and fire resistance performance, through setting up the material of second flame retardant coating and be high density polyethylene material, high density polyethylene has good heat resistance and cold resistance, chemical stability is good, still have higher rigidity and toughness, mechanical strength is good, the device adopts the cooperation between each structure, the fire prevention and the tensile resistance performance of cable have been strengthened greatly, meanwhile, the cables are convenient to connect and use, and the whole device is reasonable in design, convenient to use and high in practicability.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a front view section of the present invention;

FIG. 2 is a schematic structural diagram of a side view of the protective cover of the present invention;

fig. 3 is a schematic side view and a cut-open structure of the middle protective cover of the present invention;

in the figure: 1. a conductor; 2. an insulating layer; 3. an inner barrier layer; 4. a first fire resistant layer; 5. an oxygen barrier layer; 6. a second fire-resistant layer; 7. tensile steel wire; 8. a filling layer of an elastic material; 9. wear-resistant balls; 10. a protective sleeve; 11. anti-skid lines; 12. a thread; 13. an insulating layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a fireproof tensile-resistant cable comprises a conductor 1, wherein an insulating layer 2 is fixedly connected to the surface of the conductor 1, the purpose of insulating the conductors 1 can be achieved by arranging the insulating layer 2, the electric leakage situation is avoided, the safety is high, an inner isolating layer 3 is fixedly connected to the surface of the insulating layer 2, a heat insulating layer 13 is fixedly connected to the surface of the inner isolating layer 3, a first fireproof layer 4 is fixedly connected to the surface of the inner isolating layer 3, an oxygen isolating layer 5 is fixedly connected to the surface of the first fireproof layer 4, a second fireproof layer 6 is fixedly connected to the surface of the oxygen isolating layer 5, a tensile-resistant steel wire 7 is sleeved on the surface of the second fireproof layer 6, an elastic material filling layer 8 is sleeved on the surface of the tensile-resistant steel wire 7, a protective sleeve 10 is fixedly connected to the surface of the elastic material filling layer 8, and a plurality of wear-resistant balls 9 are fixedly connected to the surface of the protective sleeve 10, the device adopts the cooperation between each structure, has strengthened the fire prevention and the stretching resistance performance of cable greatly, and the connection between the cable of being convenient for simultaneously is used, whole device reasonable in design, convenient to use, the practicality is strong.

Specifically, the surface of lag 10 is provided with anti-skidding line 11, wear-resisting ball 9 material is rubber, is rubber through setting up wear-resisting ball 9 material, improves the elasticity of cable itself when can increase wear resistance, strengthens the tensile force performance of cable.

Specifically, the insulating layer 2 and the protective sleeve 10 are both made of soft PVC insulating materials.

Specifically, the inside of lag 10 is provided with screw thread 12, through cutting away lag 10 top layer, can spill screw thread 12, is convenient for with the 12 threaded connection of another lag 10 internal thread, realizes the high-speed joint purpose between the cable, separate oxygen layer 5 and adopt fire-retardant polyurethane material to make, phosphate among the fire-retardant polyurethane decomposes hypophosphorous acid after being heated to can further decompose and produce the liquid membrane of phosphoric acid, produced phosphoric acid can combine the carbonization in coordination with the nitrogen in the fire-retardant polyurethane main chain, produces the carbon-layer, and the carbon-layer can completely cut off the air, and intermediate product phosphoric acid and hypophosphorous acid are non-combustible liquid, can strengthen fire-retardant effect, have greatly guaranteed the life of cable.

Specifically, the material of first flame retardant coating 4 is fire resistant mica tape, and the material through setting up first flame retardant coating 4 is fire resistant mica tape, is formed by the preparation of mica tape machine, is a fire-resistant insulating material, has good high temperature resistance and fire resistance, the material of second flame retardant coating 6 is high density polyethylene material, and high density polyethylene has good heat resistance and cold resistance, and chemical stability is good, still has higher rigidity and toughness, and mechanical strength is good.

Specifically, the conductor 1 is a stranded copper conductor 1, and the elastic material filling layer 8 is formed by filling an elastic rubber material.

The utility model discloses a theory of operation and use flow: when the utility model is used and cables need to be connected, the surface layer of the protective sleeve 10 is firstly cut to expose the thread 12, the conductor 1 is contacted through the threaded connection of the thread 12 on the surface of the protective sleeve 10 and the thread 12 in the interior of another cable, so as to realize the electric connection, and in the use process, by means of the wear-resistant balls 9 and the protective sleeve 10, protection of the conductor 1 can be achieved, in the event of a fire, firstly the first fire protection layer 4 increases the fire protection of the cable, then the oxygen isolating layer 5 is decomposed to generate a carbon layer which can isolate air, the intermediate products phosphoric acid and hypophosphorous acid are all non-flammable liquid, the flame retardant effect is enhanced, the fireproof effect is enhanced through the heat-resistant layer and the second fireproof layer 6, meanwhile, the cable is pulled, the tensile property of the cable is enhanced by means of the matching of the tensile steel wire 7 and the elastic material filling layer 8, and the cable is prevented from being damaged in the pulling process.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fire-resistant, tension-resistant cable comprising a conductor (1), characterized in that: the surface fixed connection of conductor (1) has insulating layer (2), the fixed surface of insulating layer (2) is connected with interior isolation layer (3), the fixed surface of interior isolation layer (3) is connected with insulating layer (13), the fixed surface of interior isolation layer (3) is connected with first flame retardant coating (4), the fixed surface of first flame retardant coating (4) is connected with at a distance from oxygen layer (5), the fixed surface that separates oxygen layer (5) is connected with second flame retardant coating (6), the surface of second flame retardant coating (6) has cup jointed tensile steel wire (7), the surface of tensile steel wire (7) has cup jointed elastic material filling layer (8), the fixed surface of elastic material filling layer (8) is connected with lag (10), the fixed surface of lag (10) is connected with a plurality of wear-resisting ball (9).

2. A fire-resistant, tension-resistant cable according to claim 1, wherein: the surface of the protective sleeve (10) is provided with anti-skid grains (11), and the wear-resistant balls (9) are made of rubber.

3. A fire-resistant, tension-resistant cable according to claim 1, wherein: the insulating layer (2) and the protective sleeve (10) are both made of soft PVC insulating materials.

4. A fire-resistant, tension-resistant cable according to claim 1, wherein: the oxygen-insulating protective sleeve is characterized in that threads (12) are arranged inside the protective sleeve (10), and the oxygen-insulating layer (5) is made of flame-retardant polyurethane materials.

5. A fire-resistant, tension-resistant cable according to claim 1, wherein: the first fireproof layer (4) is made of a fireproof mica tape, and the second fireproof layer (6) is made of a high-density polyethylene material.

6. A fire-resistant, tension-resistant cable according to claim 1, wherein: the conductor (1) is a stranded copper conductor (1), and the elastic material filling layer (8) is formed by filling an elastic rubber material.