CN211788310U

CN211788310U - Fireproof cable

Info

Publication number: CN211788310U
Application number: CN202020697955.8U
Authority: CN
Inventors: 徐晓峰; 陈宇鹏; 刘辉; 周炎炎飞
Original assignee: Feizhou Zhizao Zhejiang Technology Co Ltd
Current assignee: Feizhou Zhizao Zhejiang Technology Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-10-27
Anticipated expiration: 2030-04-30

Abstract

The utility model provides a fire prevention cable belongs to cable technical field. It has solved the unable technical problem such as the condition of putting out a fire of initiative of current fire prevention cable. This fire prevention cable includes the sinle silk, the outer parcel of sinle silk has the first insulation layer, and the outer parcel of first insulation layer has the second insulation layer, and the outer parcel of second insulation layer has the shielding layer, and the outer parcel of shielding layer fire prevention asbestos layer, the outer parcel rubber layer of fire prevention asbestos layer still is equipped with the gas holder of storing carbon dioxide gas outside the rubber layer, and the gas holder has the mouth that loses heart, mouthful department that loses heart is equipped with the temperature sense leakage device that can control carbon dioxide gas leakage. The utility model discloses can initiatively put out the condition of a fire.

Description

Fireproof cable

Technical Field

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

Background

Cable is a generic term for optical cables, electrical cables, and the like. The cable has many purposes, is mainly used for controlling installation, connecting equipment, transmitting power and other multiple functions, and is a common and indispensable object in daily life. Installation requires special care since the cable is live. The main process of the wire and the cable comprises the following steps: the wire and cable are made by: the three processes of drawing, stranding and coating are completed, the more complicated the model specification is, the higher the repeatability is. If the cable is in short circuit or open circuit in the use process, the risk of fire is very likely to happen, and how to extinguish the fire in time is a technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a fire prevention cable, can initiatively put out the condition of a fire.

In order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a fireproof cable, includes the sinle silk, the outer parcel of sinle silk has the first insulation layer, and the outer parcel of first insulation layer has the second insulation layer, and the outer parcel of second insulation layer has the shielding layer, and the outer parcel of shielding layer fire prevention asbestos layer, the outer parcel rubber layer in fire prevention asbestos layer still are equipped with the gas holder of storing carbon dioxide gas outside the rubber layer, and the gas holder has the mouth that loses heart, mouthful department that loses heart is equipped with the temperature sense leakage device that can control carbon dioxide gas leakage.

In foretell fire prevention cable, the thalposis leaks the device and includes the fire sprinkler head, the fire sprinkler head includes the spiro union support, and the top spiro union of spiro union support is on the gas holder, and spiro union support middle part is equipped with the vitreous body, is equipped with the high liquid of coefficient of thermal expansion in the vitreous body, and the top of the vitreous body is equipped with the shutoff head that can the shutoff loses heart, the shutoff head supports with the vitreous body top and leans on.

In the fireproof cable, the bottom of the bolt joint support is provided with a supporting piece capable of supporting and fixing the glass body.

In the fireproof cable, a concave cavity capable of accommodating a glass body is arranged in the supporting piece, and the bottom of the glass body is located in the concave cavity and is wrapped by the supporting piece.

In the above fire-resistant cable, the support is made of a metal material.

In the fireproof cable, an aerogel layer is further arranged between the rubber layer and the fireproof asbestos layer. The utility model has the advantages that:

1. when the fire sprinkler head is on fire and the temperature is too high, the liquid in the glass body expands to burst the glass body, the blocking head loses the force acting on the air leakage opening, and the carbon dioxide in the gas storage tank leaks to actively prevent the deterioration of the fire.

2. The aerogel layer is arranged between the rubber layer and the fireproof asbestos layer, so that the temperature rise influence of external fire on the parts such as the wire core can be reduced.

Drawings

Fig. 1 is a schematic cross-sectional view of the present cable.

Fig. 2 is a schematic view of a connection structure of the air storage tank and the fire sprinkler head.

Fig. 3 is a schematic structural view of a fire-resistant cable.

In the figure, 1, a wire core; 2. a first insulating layer; 3. a shielding layer; 4. a fireproof asbestos layer; 5. an aerogel layer; 6. a rubber layer; 7. a gas storage tank; 8. a fire sprinkler head; 8a, screwing a bracket; 8b, a vitreous body; 8c, plugging heads; 8d, a supporting piece; 8e, an air leakage opening; 9. a second insulating layer.

Detailed Description

The invention is further explained by combining the attached drawings.

The first embodiment is as follows:

as shown in the attached drawings 1 to 3 in the specification, the fireproof cable comprises a wire core 1, wherein a first insulating layer 2 is wrapped outside the wire core 1, and the first insulating layer 2 can be made of plastics or rubber materials and wrapped outside the wire core 1. The first insulating layer 2 is wrapped by a second insulating layer 9, and the second insulating layer 9 can be a PVC pipe or a rubber pipe. The outer parcel of second insulating layer 9 has shielding layer 3, and shielding layer 3 adopts red copper or tinned copper to make, and shielding layer 3 outer parcel fire prevention asbestos layer 4, the outer parcel of fire prevention asbestos layer 4 has aerogel layer 5, and aerogel layer 5 still wraps up rubber layer 6 outward, and rubber layer 6 still is equipped with the gas holder 7 of storing carbon dioxide gas outward, and gas holder 7 has the mouth 8e that loses heart, and mouth 8e department that loses heart is equipped with the temperature sense leakage device that can control carbon dioxide gas and leak.

As shown in the attached drawings 1 to 3 of the specification, the temperature-sensitive leakage device comprises a fire-fighting spray head 8, the fire-fighting spray head 8 comprises a screw joint support 8a, the top of the screw joint support 8a is screwed on an air storage tank 7, a glass body 8b is arranged in the middle of the screw joint support 8a, liquid with a high thermal expansion coefficient is filled in the glass body 8b, a sealing head 8c capable of sealing an air leakage opening 8e is arranged above the glass body 8b, the sealing head 8c is abutted against the top of the glass body 8b, a bearing piece 8d capable of bearing and fixing the glass body 8b is arranged at the bottom of the screw joint support 8a, a concave cavity capable of containing the glass body 8b is arranged in the bearing piece 8, the bottom end of the glass body 8b is positioned in the concave cavity and is wrapped by the supporting piece 8d, the supporting piece 8d is made of copper or iron and has better heat absorption and heat conduction performance, and the supporting piece 8d transmits the ambient temperature to the glass tube more quickly. The liquid in the vitreous body 8b may be kerosene, a sulfate solution or alcohol; the amount of liquid in the glass body 8b is small, and carbon dioxide leaks out when the liquid is broken, so that the glass body does not have a combustion condition.

As shown in fig. 1 to 3 of the specification, the air tank 7 and the fire sprinkler head 8 may be fixed by winding an adhesive tape around the rubber layer 6.

As shown in fig. 1 to 3 in the specification, the fireproof cable is mainly applied to an automobile or a closed environment, the space is not large, and the environment of line fire is usually not easy to detect. After the place where this fire prevention cable was located takes place the condition of a fire, the temperature can rise, lies in the liquid inflation in the glass pipe, and final glass pipe breaks, and the shutoff head 8c loses to support after falling, is followed gas escape opening 8e by carbon dioxide gas in the gas holder 7 and is rushed out, with the carbon dioxide concentration rise of the environment where the cable was located, realizes preventing stretching of the condition of a fire. The aerogel layer 5 arranged between the rubber layer 6 and the fireproof asbestos layer 4 can reduce the temperature rise influence of external fire on the cable core 1 and other parts.

Example two:

this embodiment is substantially the same as the above-described embodiment, except that the temperature-sensitive leakage device includes a solenoid valve which communicates with the air release port 8e, and a temperature sensor which is electrically connected to the solenoid valve, the temperature sensor being mounted on the rubber layer 6. The temperature sensor can be electrically connected with other equipment to provide energy, and can also be a temperature sensor with a battery. When the temperature sensor senses the height of the environmental temperature and a fire possibly occurs or the fire occurs, the electromagnetic valve is opened to discharge the carbon dioxide gas.

The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the technical solution disclosed by the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. The utility model provides a fire prevention cable, includes sinle silk (1), its characterized in that, sinle silk (1) outer parcel has first insulation layer (2), and first insulation layer (2) outer parcel has second insulating layer (9), and second insulating layer (9) outer parcel has shielding layer (3), shielding layer (3) outer parcel fire prevention asbestos layer (4), fire prevention asbestos layer (4) outer parcel rubber layer (6), rubber layer (6) still are equipped with gas holder (7) of storing carbon dioxide gas outward, and gas holder (7) have mouthful (8e) of disappointing, mouthful (8e) department of disappointing is equipped with the temperature sense leakage device that can control carbon dioxide gas leakage.

2. The fireproof cable according to claim 1, wherein the temperature-sensitive leakage device comprises a fire sprinkler head (8), the fire sprinkler head (8) comprises a bolt connection support (8a), the top of the bolt connection support (8a) is in bolt connection with an air storage tank (7), a glass body (8b) is arranged in the middle of the bolt connection support (8a), liquid with a high thermal expansion coefficient is filled in the glass body (8b), a sealing head (8c) capable of sealing an air leakage opening (8e) is arranged above the glass body (8b), and the sealing head (8c) is abutted to the top of the glass body (8 b).

3. Fire protection cable according to claim 2, characterized in that the bottom of the screwing bracket (8a) is provided with a bearing (8d) capable of bearing and fixing the glass body (8 b).

4. A fire protection cable according to claim 3, wherein the support (8d) is provided with a cavity capable of receiving the glass body (8b), and the bottom end of the glass body (8b) is located in the cavity and is wrapped by the support (8 d).

5. Fire protection cable according to claim 4, characterized in that the carrier (8d) is made of a metallic material.

6. A fire-resistant cable according to claim 1 or 2 or 3 or 4 or 5, characterised in that an aerogel layer (5) is further provided between the rubber layer (6) and the layer of fire-resistant asbestos (4).