CN210896703U

CN210896703U - Fire-resistant electric wire with good flame-retardant and insulating properties

Info

Publication number: CN210896703U
Application number: CN201921755624.9U
Authority: CN
Inventors: 王佳俊; 陈政先; 匡传星; 段丕亮
Original assignee: Qingdao Cable Sea Industrial Technology Group Co ltd
Current assignee: Qingdao Cable Sea Industrial Technology Group Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-06-30
Anticipated expiration: 2029-10-18

Abstract

The utility model relates to a fire-resistant electric wire technical field specifically discloses a fire-resistant electric wire that fire-retardant insulating properties is good, including wear-resisting inoxidizing coating, the hollow heat-resistant layer of inner wall fixedly connected with of wear-resisting inoxidizing coating, the inner wall of hollow heat-resistant layer have communicating pipe around circumference equidistance through connection, the body of keeping away from hollow heat-resistant layer one side of communicating pipe is fixed on the pole and has been cup jointed the negative pressure sealing washer, and the central authorities of negative pressure sealing washer inner. This structural design through between the inslot of hollow heat-resisting intraformational fluting and the fire retardant, through the structural design between plastic piece and the circular export, can make the inside of this fire-resistant electric wire that fire-retardant insulating properties is good in case the condition of spontaneous combustion appears, thereby the fire retardant just can enter into the inside of negative pressure sealing washer and cover the flame of spontaneous combustion and go out, prevent the chain burning condition from appearing, thereby make this fire-resistant electric wire that fire-retardant insulating properties is good reach and can carry out automatic fire-retardant purpose when the spontaneous combustion phenomenon appears in the electric wire inside.

Description

Fire-resistant electric wire with good flame-retardant and insulating properties

Technical Field

The utility model relates to a fire-resistant electric wire technical field specifically is a fire-resistant electric wire that fire-retardant insulating properties is good.

Background

The electric wire refers to a conducting wire for transmitting electric energy, a bare wire, an electromagnetic wire and an insulating wire. The bare wire has no insulating layer, including copper, aluminum flat wire, overhead twisted wire and various profiles (such as molded line, bus, copper bar, aluminum bar, etc.), it is mainly used for outdoor overhead and indoor bus bar and switch box, the electromagnetic wire is an insulated wire which generates magnetic field after being electrified or induces current in the magnetic field, it is mainly used for motor and transformer winding and other relevant electromagnetic equipment.

At present, current fire-resistant electric wire is after long-time use, and damage can appear because long-term high temperature is toasted in its inside fire-retardant layer, and in case the inside high temperature of electric wire, the spontaneous combustion condition can appear in the inside that can make whole electric wire to the emergence of initiating the electric fire, and current fire-resistant electric wire does not have better self emergency treatment mode, can only put out a fire through artificial mode.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a fire-resistant electric wire that fire-retardant insulating properties is good possesses and carries out advantages such as automatic fire-retardant when the spontaneous combustion phenomenon appears in the electric wire inside, has solved the inside high temperature of current fire-resistant electric wire, can make the inside spontaneous combustion condition of appearing of whole electric wire to cause the problem that electric spark appears.

The utility model discloses a fire-retardant good fire-resistant electric wire of insulating properties, including wear-resistant protective layer, the hollow heat-resistant layer of inner wall fixedly connected with of wear-resistant protective layer, the inner wall of hollow heat-resistant layer is link up around circumference equidistance and is connected with communicating pipe, and the pole body that hollow heat-resistant layer one side was kept away from to communicating pipe is fixed to have cup jointed the negative pressure sealing washer, and the central authorities of negative pressure sealing washer inner chamber are equipped with the insulating layer, and the central authorities of insulating layer inner chamber are equipped with the insulating.

The utility model discloses a fire-retardant insulating properties is good fire-resistant electric wire, wherein the fluting has been seted up around the circumference equidistance to hollow heat-resistant layer inner chamber, and grooved inner chamber packs has the fire retardant, and this design is of value to can be with the pure inner chamber to this electric wire of fire retardant in.

The utility model discloses a fire-resistant electric wire that fire-retardant insulating properties is good, wherein each fluting in the hollow heat-resistant layer inner chamber all with each communicating pipe through connection on its inner wall, one side fixedly connected with circular export that is arranged in the negative pressure sealing washer inner chamber communicating pipe, the fixed surface laminating that circular export is close to negative pressure sealing washer one side has the plastic piece, this design is favorable to the plastic piece can stop up the intercommunication pipe plug, can prevent that the fire retardant from revealing when the spontaneous combustion condition does not appear.

The utility model discloses a fire-resistant electric wire that fire-retardant insulating properties is good, wherein the top on the positive right side of negative pressure sealing washer is equipped with the check valve, and this design has the air that is good for making things convenient for the staff in with the negative pressure sealing washer to take away.

The utility model discloses a fire-retardant insulating properties is good fire-resistant electric wire, wherein the inner chamber packing between insulating layer and the insulating layer has the insulating pad, and cable line's line is fixed to have cup jointed the insulating cement on one's body, and this design is of value to the insulating properties that can strengthen this electric wire.

The utility model discloses a fire-resistant electric wire that fire-retardant insulating properties is good, wherein negative pressure seal circle is close to one side of insulating layer and the insulating layer between fixed connection together, this design is favorable to the fire retardant in the negative pressure seal circle in can entering into the insulating layer.

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

the utility model has the advantages that through the structural design of the wear-resistant protective layer, the fire-resistant electric wire with good flame-retardant insulating property has better wear resistance, the flame retardant can be hidden in the inner cavity of the electric wire through the structural design between the notch in the hollow heat-resistant layer and the flame retardant, through the structural design between the negative pressure sealing ring and the communicating pipe as well as the circular outlet, the flame retardant can enter the inner cavity of the negative pressure sealing ring, through the structural design between the check valve and the negative pressure sealing ring, workers can conveniently draw the air pressure in the negative pressure sealing ring away, so that the inner cavity of the negative pressure sealing ring is called as the environment of negative pressure, through the structural design between the plastic sheet and the circular outlet, once the self-ignition condition occurs in the interior of the fire-resistant electric wire with good flame-retardant insulating property, the flame retardant can enter the interior of the negative pressure sealing ring to cover, the fire-resistant wire with good flame-retardant and insulating properties can automatically resist flame when spontaneous combustion occurs in the wire.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

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

FIG. 2 is a schematic front sectional view of the present invention;

FIG. 3 is a schematic view of the structure of the communication tube in the bottom view;

fig. 4 is a schematic side perspective view of the present invention.

In the figure: 1. a wear-resistant protective layer; 2. a hollow heat-resistant layer; 3. a communicating pipe; 4. a negative pressure sealing ring; 5. a one-way valve; 6. a thermal insulation layer; 7. an insulating pad; 8. an insulating layer; 9. grooving; 10. a flame retardant; 11. a circular outlet; 12. a cable; 13. a plastic sheet.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Please refer to fig. 1-4, the utility model discloses a fire-resistant electric wire that fire-retardant insulating properties is good, including wear-resistant inoxidizing coating 1, the hollow heat-resistant layer 2 of inner wall fixedly connected with of wear-resistant inoxidizing coating 1, the inner wall of hollow heat-resistant layer 2 has through connections communicating pipe 3 around circumference equidistance, communicating pipe 3 keeps away from the fixed negative pressure sealing washer 4 that has cup jointed on the pole body of hollow heat-resistant layer 2 one side, the central authorities of negative pressure sealing washer 4 inner chamber are equipped with insulating layer 6, the central authorities of insulating layer 6 inner chamber are equipped with insulating layer 8 around the circumference equidista.

The notches 9 are formed in the inner cavity of the hollow heat-resistant layer 2 at equal intervals around the circumference, the flame retardant 10 is filled in the inner cavity of each notch 9, and the design is beneficial to enabling the flame retardant 10 to be purely arranged in the inner cavity of the wire.

Each fluting 9 in 2 inner chambers of hollow heat-resisting layer all with each 3 through connections communicating pipe on its inner wall, the circular export 11 of one side fixedly connected with that 3 communicating pipes are located 4 inner chambers of negative pressure sealing washer, the fixed surface that circular export 11 is close to 4 one sides of negative pressure sealing washer has plastic piece 13, this design is good for plastic piece 13 can be stopped up communicating pipe 3, can prevent that fire retardant 10 from revealing when the spontaneous combustion condition does not appear.

The top on the right side of the front surface of the negative pressure sealing ring 4 is provided with a one-way valve 5, and the design is beneficial to facilitating a worker to pump away air in the negative pressure sealing ring 4.

The inner cavity between the heat insulation layer 6 and the insulation layer 8 is filled with an insulation pad 7, and the body of the cable 12 is fixedly sleeved with insulation glue, so that the design is beneficial to enhancing the insulation performance of the electric wire.

One side of the negative pressure sealing ring 4 close to the heat insulation layer 6 is fixedly connected with the heat insulation layer 6, and the design is beneficial to the fact that the flame retardant 10 in the negative pressure sealing ring 4 can enter the heat insulation layer 6.

When using the utility model discloses the time: the staff inserts the extraction opening of negative-pressure machine in check valve 5 earlier, take the state of negative pressure out the inner chamber of negative pressure sealing washer 4, in case when electric spark appears in cable 12 thereby make the inside of whole electric wire appear high temperature spontaneous combustion, the plastic piece 13 on the circular export 11 can be burned through to the high temperature of burning, thereby make communicating pipe 3 not receive the jam while the negative pressure in the negative pressure sealing washer 4 can be with the fire retardant 10 suction in fluting 9 to the negative pressure sealing washer 4 in, thereby make be full of fire retardant 10 in the negative pressure sealing washer 4, make fire retardant 10 can block the flame of spontaneous combustion on the cable 12, reduce the temperature around the cable 12 simultaneously, make the high temperature in the electric wire slowly cool down, thereby reach fire-retardant purpose.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a fire-resistant electric wire that fire-retardant insulating properties is good, includes wear-resisting inoxidizing coating (1), its characterized in that: the inner wall fixedly connected with hollow heat-resistant layer (2) of wear-resisting inoxidizing coating (1), the inner wall of hollow heat-resistant layer (2) has through connection communicating pipe (3) around circumference equidistance, communicating pipe (3) are kept away from the pole body of hollow heat-resistant layer (2) one side and are fixed and have been cup jointed negative pressure sealing washer (4), the central authorities of negative pressure sealing washer (4) inner chamber are equipped with insulating layer (6), the central authorities of insulating layer (6) inner chamber are equipped with insulating layer (8) around the circumference equidistance, the inner chamber of insulating layer (8) is equipped with two cables (12).

2. The fire-resistant electric wire with good flame-retardant and insulating properties according to claim 1, characterized in that: the inner cavity of the hollow heat-resistant layer (2) is provided with slots (9) at equal intervals around the circumference, and the inner cavity of each slot (9) is filled with a flame retardant (10).

3. The fire-resistant electric wire with good flame-retardant and insulating properties according to claim 2, characterized in that: each fluting (9) in hollow heat-resistant layer (2) inner chamber all link up with each communicating pipe (3) on its inner wall and be connected, communicating pipe (3) are located the circular export (11) of one side fixedly connected with in negative pressure sealing washer (4) inner chamber, circular export (11) are close to the fixed surface laminating of negative pressure sealing washer (4) one side and have plastic piece (13).

4. The fire-resistant electric wire with good flame-retardant and insulating properties according to claim 1, characterized in that: and a one-way valve (5) is arranged at the top of the right side of the front surface of the negative pressure sealing ring (4).

5. The fire-resistant electric wire with good flame-retardant and insulating properties according to claim 1, characterized in that: an inner cavity between the heat insulation layer (6) and the insulation layer (8) is filled with an insulation pad (7), and an insulation adhesive is fixedly sleeved on a wire body of a cable of the cable (12).

6. The fire-resistant electric wire with good flame-retardant and insulating properties according to claim 1, characterized in that: one side of the negative pressure sealing ring (4) close to the heat insulation layer (6) is fixedly connected with the heat insulation layer (6).