CN220672269U

CN220672269U - Fire-resistant insulated cable

Info

Publication number: CN220672269U
Application number: CN202321812348.1U
Authority: CN
Inventors: 黄嘉阳
Original assignee: Jiaxing Aoyipu Data Cable Co ltd
Current assignee: Jiaxing Aoyipu Data Cable Co ltd
Priority date: 2023-07-11
Filing date: 2023-07-11
Publication date: 2024-03-26
Anticipated expiration: 2033-07-11

Abstract

The utility model discloses a fire-resistant insulated cable, which relates to the technical field of cables and comprises a cable main body, wherein the cable main body comprises a base layer, an insulating layer is fixed on the inner wall of the base layer, a plurality of groups of conductive cores are additionally arranged in the insulating layer, a rubber layer is sleeved on the outer wall of the insulating layer, and a fire-resistant layer is fixed on the outer wall of the rubber layer. According to the utility model, the flame-retardant layer has a flame-retardant effect on the cable, the condition that the cable burns is avoided, the cavity formed between the rubber layer and the base layer has a blocking effect on heat, the heat is blocked from being transferred into the guide core, a plurality of groups of elastic components between the rubber layer and the base layer correspond to the extrusion force of the outside, the effect of buffering and unloading force is achieved, the damage to the extrusion of the conductive core is avoided, the hemp rope has a stretch-resistant effect, the silicon rubber particles can lead out the heat generated by the current transmitted by the conductive core, the condition of disconnection caused by butt joint is avoided, and a higher protection effect is achieved on the cable.

Description

Fire-resistant insulated cable

Technical Field

The utility model relates to the technical field of cables, in particular to a fire-resistant insulated cable.

Background

The cable is a device for transmitting power and signals, the wire and the cable are the most important components of the power line, along with the increasing of power requirements, the application field is increasingly complex, and how to improve the flame retardance and fire resistance of the wire and the cable is an extremely important link on the premise of ensuring the reliable service of the wire and the cable and the safe operation of the power line, so that the cable has important significance.

Because of the diversified application places of the cable, the existing cable has single protection function, the outer wall of the cable only wraps one side of the insulating rubber singly, and the cable loses the function of a conveying circuit due to factors such as fire disaster, external force and the like, thereby providing a fire-resistant insulating cable

Disclosure of Invention

Based on this, it is an object of the present utility model to provide a fire resistant insulated cable to solve the technical problems set forth in the background above.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a fire-resistant insulated cable, includes the cable main part, the cable main part includes the basic unit, the inner wall of basic unit is fixed with the insulating layer, the inside of insulating layer is equipped with multiunit conductive core additional, the outer wall of insulating layer has cup jointed the rubber layer, the outer wall of rubber layer is fixed with fire-retardant layer, the inner wall of rubber layer is equipped with multiunit elastic component with the outer wall of insulating layer.

Preferably, the cross section of the end part of the elastic piece is X-shaped, four ends of the elastic piece extend into the rubber layer and the insulating layer respectively, an arc-shaped chute is formed at the contact position of the rubber layer and the insulating layer with the elastic piece, and the elastic piece is made of heat-insulating rubber.

Preferably, a plurality of groups of hemp ropes are additionally arranged in the base layer, and the plurality of groups of hemp ropes are distributed in the base layer in an annular array.

Preferably, soft fillers are arranged on the outer walls of the multiple groups of conductive cores in the insulating layer, and the soft fillers are made of silicon rubber particles.

Preferably, the elastic members are distributed between the rubber layer and the insulating layer in an annular array, and the distances between every two groups of elastic members are equal.

Preferably, a heat insulation layer is arranged at the contact position of the inner wall of the rubber layer and the insulating layer, and the heat insulation layer is sewn and fixed through flexible iron wires.

In summary, the utility model has the following advantages:

according to the utility model, the flame-retardant layer has a flame-retardant effect on the cable, the condition that the cable burns is avoided, the cavity formed between the rubber layer and the base layer has a blocking effect on heat, the heat is blocked from being transferred into the guide core, a plurality of groups of elastic components between the rubber layer and the base layer correspond to the extrusion force of the outside, the effect of buffering and unloading force is achieved, the damage to the extrusion of the conductive core is avoided, the hemp rope has a stretch-resistant effect, the silicon rubber particles can lead out the heat generated by the current transmitted by the conductive core, the condition of disconnection caused by butt joint is avoided, and a higher protection effect is achieved on the cable.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is an end cutaway view of the present utility model;

fig. 3 is an enlarged view of a portion of fig. 2 a in accordance with the present utility model.

In the figure: 100. a cable body;

110. a flame retardant layer; 120. a rubber layer; 130. a base layer; 140. hemp ropes; 150. an insulating layer; 160. a soft filler; 170. a conductive core; 180. an elastic member.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

1-3, including cable main part 100, cable main part 100 includes basic unit 130, the inner wall of basic unit 130 is fixed with insulating layer 150, the inside of insulating layer 150 adds and is equipped with multiunit conductive core 170, the outer wall of insulating layer 150 has cup jointed rubber layer 120, the outer wall of rubber layer 120 is fixed with fire-retardant layer 110, the inner wall of rubber layer 120 and the outer wall of insulating layer 150 are equipped with multiunit elastic component 180, add in the basic unit 130 and be equipped with multiunit twine 140, and multiunit twine 140 is the annular array and distributes in basic unit 130, the inner wall of rubber layer 120 and insulating layer 150 contact position department are equipped with the insulating layer, and the insulating layer passes through flexible iron wire sewing and fixes.

The external force firstly contacts with the flame-retardant layer 110 to cause the flame-retardant layer 110 and the rubber layer 120 to be sunken, so that the elastic piece 180 is deformed, the suffered external force is buffered and weakened, and the rigid contact to the base layer 130 is avoided, thereby protecting the integrity of the cable, playing an anti-extrusion effect, bending the stress point of the cable when the external force is caused, and playing an anti-stretching effect to effectively prevent the cable from being broken;

the flame retardant coating 110 has an isolation effect on external heat, the cavity between the rubber layer 120 and the base layer 130 is utilized to play a role of an air wall, the better heat is isolated, the place of production is prevented from being in the base layer 130, the soft filler 160 can transfer out the heat generated by the current conveyed by the conductive core 170, the circuit breaking caused by heat butt joint is avoided, the breakage caused by extrusion between the conductive cores 170 can be prevented, and the cable is further protected better.

Referring to fig. 2 and 3, the cross section of the end of the elastic member 180 is X-shaped, four ends of the elastic member 180 extend into the rubber layer 120 and the insulating layer 150, and an arc chute is formed at a contact position between the rubber layer 120 and the insulating layer 150 and the elastic member 180, and the elastic member 180 is made of heat-insulating rubber.

By utilizing the elastic function of the elastic piece 180, the elastic protection effect is achieved, the condition that the cable is in rigid contact with external force is avoided, the arc-shaped sliding groove provides deformation space for the elastic piece 180, the elastic piece 180 is prevented from being broken, and heat is prevented from being transmitted into the base layer 130 through the elastic piece 180.

Referring to fig. 2, a soft filler 160 is disposed on the outer walls of the plurality of conductive cores 170 in the insulating layer 150, and the soft filler 160 is made of silicone rubber particles.

The anti-extrusion effect is achieved among the multiple groups of conductive cores 170, heat generated when the conductive cores 170 are supplied with current can be conducted out, and the situation of heat accumulation is avoided.

Referring to fig. 2, the plurality of elastic members 180 are distributed between the rubber layer 120 and the insulating layer 150 in an annular array, and the distances between every two sets of elastic members 180 are equal.

The cable is all-round to play buffering elasticity protection effect to this cable, avoids causing rigid contact to the hawser, and then can protect the integrality of this cable.

When the cable is used, external force firstly contacts with the flame-retardant layer 110 to cause the flame-retardant layer 110 and the rubber layer 120 to be sunken, so that the elastic piece 180 of the cable is deformed, the suffered external force is buffered and weakened, and the rigid contact to the base layer 130 is avoided, so that the integrity of the cable is protected, the anti-extrusion effect is achieved, the stress point of the cable is bent when the external force is caused, the stretch-proof effect is achieved by the hemp rope 140, and the condition of cable disconnection is effectively prevented;

Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.

Claims

1. A fire resistant insulated cable, characterized in that: including cable main part (100), its characterized in that: the cable main body (100) comprises a base layer (130), an insulating layer (150) is fixed on the inner wall of the base layer (130), a plurality of groups of conductive cores (170) are additionally arranged in the insulating layer (150), a rubber layer (120) is sleeved on the outer wall of the insulating layer (150), a flame retardant layer (110) is fixed on the outer wall of the rubber layer (120), a plurality of groups of elastic components (180) are arranged on the inner wall of the rubber layer (120) and the outer wall of the insulating layer (150), the end section of the elastic component (180) is X-shaped, four ends of the elastic component (180) extend into the rubber layer (120) and the insulating layer (150) respectively, an arc-shaped chute is formed in the contact position of the rubber layer (120) and the insulating layer (150) with the elastic component (180), and the elastic component (180) is made of heat-insulating rubber.

2. A fire resistant insulated cable according to claim 1, wherein: a plurality of groups of twines (140) are additionally arranged in the base layer (130), and the plurality of groups of twines (140) are distributed in the base layer (130) in an annular array.

3. A fire resistant insulated cable according to claim 1, wherein: soft fillers (160) are arranged on the outer walls of the plurality of groups of conductive cores (170) in the insulating layer (150), and the soft fillers (160) are made of silicon rubber particles.

4. A fire resistant insulated cable according to claim 1, wherein: the elastic pieces (180) are distributed between the rubber layer (120) and the insulating layer (150) in an annular array, and the distances between every two groups of elastic pieces (180) are equal.

5. A fire resistant insulated cable according to claim 1, wherein: the inner wall of the rubber layer (120) is provided with a heat insulation layer at the contact position with the insulating layer (150), and the heat insulation layer is fixed by flexible iron wire sewing.