CN216957487U

CN216957487U - Mineral flexible fireproof cable with good compression resistance effect

Info

Publication number: CN216957487U
Application number: CN202122953485.4U
Authority: CN
Inventors: 茆成彦; 周寿清; 韦佳; 王维路; 李程; 曹囯良
Original assignee: JIANGSU RUNHUA CABLE SHAREHOLDING CO Ltd
Current assignee: JIANGSU RUNHUA CABLE SHAREHOLDING CO Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-07-12
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a mineral flexible fireproof cable with good compression resistance effect in the technical field of cables, which comprises: the inner sheath, the inner sheath inner chamber evenly is equipped with the cable core, and the cable core includes conductor and insulating layer, the insulating layer cover is established on the outer wall of conductor, inner sheath outer wall cover is equipped with the heat insulation layer, heat insulation layer outer wall cover is equipped with the heat-resistant layer, the elastic layer is evenly installed to the heat-resistant layer outer wall, the elastic layer outer wall cover is equipped with the armor, and the armor outer wall cover is equipped with the oversheath, and the effect of buffering decompression is played to the elastic action through the elastic layer in the device, makes the cable receive external extrusion time, causes the extrusion force to reduce to cable inside, protects the cable, prolongs the life of cable.

Description

Mineral flexible fireproof cable with good compression resistance effect

Technical Field

The utility model relates to the technical field of cables, in particular to a mineral flexible fireproof cable with a good compression-resistant effect.

Background

The cable is a device for transmitting electric energy or signals, and plays an important role in life of people, so the safety of the cable in use also becomes important, and the cable is required to have strong performance.

The existing cable is generally formed by combining layers, the layers are tightly attached to each other, when the cable is extruded from the outside, the inside of the cable is extruded, and the cable is easily damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mineral flexible fireproof cable with a good compression-resistant effect so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an effectual mineral flexible fireproof cable of resistance to compression, includes: an inner sheath;

the cable core is uniformly arranged in the inner cavity of the inner sheath and comprises a conductor and an insulating layer, and the insulating layer is sleeved on the outer wall of the conductor;

the inner sheath outer wall cover is equipped with the heat insulation layer, heat insulation layer outer wall cover is equipped with the heat-resistant layer, heat-resistant layer outer wall cover is equipped with the elastic layer, the elastic layer outer wall cover is equipped with the armor, and the armor outer wall cover is equipped with the oversheath.

Preferably, the elastic layer is a rubber elastic layer.

Preferably, a filling layer is filled between the inner cavity of the inner sheath and the outer wall of the cable core, and the filling layer is a flame-retardant filling layer.

Preferably, the thermal insulation layer is a mineral layer.

Preferably, the outer sheath is a low smoke zero halogen outer sheath.

Preferably, the heat-resistant layer is a glass fiber layer.

Compared with the prior art, the utility model has the beneficial effects that: the device plays a role in buffering and pressure reduction through the elastic action of the elastic layer, so that when the cable is extruded from the outside, the extrusion force inside the cable is reduced, the cable is protected, and the service life of the cable is prolonged.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. an inner sheath; 2. a conductor; 3. an insulating layer; 4. a filling layer; 5. a heat insulating layer; 6. a heat-resistant layer; 7. an outer sheath; 8. an elastic layer; 9. an armor layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

the utility model provides a technical scheme that: a mineral flexible fireproof cable with good compression resistance, please refer to fig. 1, comprising: an inner sheath 1;

the cable core is uniformly arranged in the inner cavity of the inner sheath 1 and comprises conductors 2 and an insulating layer 3, the insulating layer 3 is sleeved on the outer walls of the conductors 2, the inner sheath 1 is a seamless copper pipe sheath, the insulating layer 3 is an inorganic magnesium oxide insulating layer, and the conductors 2 are high-conductivity copper conductors;

referring to fig. 1, a heat insulating layer 5 is sleeved on the outer wall of an inner sheath 1, a heat resistant layer 6 is sleeved on the outer wall of the heat insulating layer 5, the heat insulating layer 5 is a mineral layer, the mineral layer is made of natural rocks and minerals and is processed into a fiber layer shape, the fiber layer has good heat insulating performance and can keep certain flexibility at high temperature, and the heat resistant layer 6 is a glass fiber layer and has heat resistance;

referring to fig. 1, an armor layer 9 is sleeved on the outer wall of an elastic layer 8, the armor layer 9 is formed by weaving steel wires, an outer sheath 7 is sleeved on the outer wall of the armor layer 9, the outer sheath 7 is a low-smoke zero-halogen outer sheath, so that the environmental protection performance of a cable is improved, a filling layer 4 is filled between the inner cavity of the inner sheath 1 and the outer wall of the cable core, the filling layer 4 is a flame-retardant filling layer, the filling layer 4 is flame-retardant foam, mica powder is mixed in the flame-retardant foam, and the flame retardance and the high temperature resistance are improved.

Example 2:

referring to fig. 1, on the basis of embodiment 1, the outer wall of the heat-resistant layer 6 is uniformly provided with an elastic layer 8, and the elastic layer 8 is a rubber elastic layer, has elasticity, and has an effect of buffering and reducing pressure, so that when the cable is extruded from the outside, the extrusion force inside the cable is reduced, and the cable is protected;

compared with the embodiment 1, the elastic layer 8 is additionally arranged, the extrusion force inside the cable is reduced, the cable is protected, and the service life of the cable is prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an effectual mineral flexible fireproof cable of resistance to compression which characterized in that: the method comprises the following steps: an inner sheath (1);

the cable core is uniformly arranged in the inner cavity of the inner sheath (1) and comprises conductors (2) and an insulating layer (3), and the insulating layer (3) is sleeved on the outer walls of the conductors (2);

inner sheath (1) outer wall cover is equipped with heat insulation layer (5), heat insulation layer (5) outer wall cover is equipped with heat-resistant layer (6), heat-resistant layer (6) outer wall cover is equipped with elastic layer (8), elastic layer (8) outer wall cover is equipped with armor (9), and armor (9) outer wall cover is equipped with oversheath (7).

2. The mineral flexible fireproof cable with good compression resistance effect as claimed in claim 1, wherein: the elastic layer (8) is a rubber elastic layer.

3. The mineral flexible fireproof cable with good compression resistance effect as claimed in claim 1, wherein: and a filling layer (4) is filled between the inner cavity of the inner sheath (1) and the outer wall of the cable core, and the filling layer (4) is a flame-retardant filling layer.

4. The mineral flexible fireproof cable with good compression resistance effect as claimed in claim 1, wherein: the heat insulation layer (5) is a mineral layer.

5. The mineral flexible fireproof cable with good compression resistance effect as claimed in claim 1, wherein: the outer sheath (7) is a low-smoke halogen-free outer sheath.

6. The mineral flexible fireproof cable with good compression resistance effect as claimed in claim 1, wherein: the heat-resistant layer (6) is a glass fiber layer.