CN211125141U

CN211125141U - Flame-retardant wire

Info

Publication number: CN211125141U
Application number: CN202020210118.8U
Authority: CN
Inventors: 文桂华; 文志强
Original assignee: Hunan Mishuihe Cables Co ltd
Current assignee: Hunan Mishuihe Cables Co ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-07-28
Anticipated expiration: 2030-02-25

Abstract

The utility model discloses a fire-retardant electric wire, including electric wire body and fire-retardant sleeve pipe, the fire-retardant sleeve pipe of a plurality of has been cup jointed on this external table wall of electric wire, fire-retardant sheathed tube one end is provided with the interconnection and takes over, fire-retardant sheathed tube other end is provided with the outer joint pipe, the bolt hole has been seted up on the interconnection and takes over, bolted connection has fixing bolt on the outer joint pipe. The utility model discloses in, this fire-retardant electric wire is provided with interior fire-retardant layer and interior fire-retardant filling layer in inside, can prevent that the overheated emergence condition of catching fire of conductor for inside is fire-retardant, secondly has cup jointed the fire-retardant sleeve pipe of a plurality of in the outside of electric wire body, is used for preventing that there is the fire source in the electric wire body outside to cause the electric wire body to catch fire, realizes inside and outside fire prevention simultaneously, improves its fire behaviour, has increased the security that the electric wire body used.

Description

Flame-retardant wire

Technical Field

The utility model relates to an electric wire technical field especially relates to a fire-retardant electric wire.

Background

The electric wire refers to a wire for transmitting electric energy. The bare wires, the electromagnetic wires and the insulated wires. The bare wires have no insulating layer and comprise copper, aluminum flat wires, overhead stranded wires and various profiles (such as molded lines, buses, copper bars, aluminum bars and the like). It is mainly used for outdoor overhead and indoor bus bars and switch boxes. Magnet wires are insulated wires that, when energized, produce a magnetic field or induce a current in a magnetic field. It is mainly used for motor and transformer coils and other relevant electromagnetic equipment. The conductor is mainly a copper wire, and has a thin insulating layer, good electrical and mechanical properties, heat resistance, moisture resistance, solvent resistance and the like. Different insulating materials are selected to achieve different characteristics.

The electric wire that has now generally singlely sets up fire-retardant layer in inside for place the electric wire inner conductor and generate heat and cause the internal combustion phenomenon, do not possess outside fire-retardant protection, when laying of electric wire uses, easily cause the electric wire to burn out because of outside burning things which may cause a fire disaster, cause power consumption potential safety hazard and huge economic damage, so can not satisfy user's demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a flame-retardant electric wire.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a flame-retardant wire comprises a wire body and a flame-retardant sleeve;

The outer surface wall of the electric wire body is sleeved with a plurality of flame-retardant sleeves, one end of each flame-retardant sleeve is provided with an inner connecting pipe, the other end of each flame-retardant sleeve is provided with an outer connecting pipe, the inner connecting pipe is provided with a bolt hole, and the outer connecting pipe is connected with a fixing bolt through a bolt;

The flame-retardant sleeve is characterized in that an inner pipe is sleeved inside the flame-retardant sleeve, and the outer side of the inner pipe and the inside of the flame-retardant sleeve are filled with filled heat-insulating asbestos.

Preferably, the electric wire body comprises conductor, inner insulating layer, interior fire-retardant layer and fire-retardant filling layer, the inner insulating layer cup joints in the conductor outside, the outside of inner insulating layer is set up to interior fire-retardant layer, the outside of inner insulating layer is provided with the inner sheath, and the fire-retardant filling layer of hole is filled in the cavity between inner sheath and the interior fire-retardant layer.

Preferably, the outer side of the inner sheath is provided with a shielding layer, and the outer side of the shielding layer is sleeved with the outer sheath.

Preferably, the outer diameter of the inner connecting pipe is smaller than the inner diameter of the outer connecting pipe, and a sealing gasket is sleeved on the outer surface wall of the inner connecting pipe.

Preferably, the inner surface walls of the inner connecting pipe and the outer connecting pipe are sleeved with insulating rubber pads.

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

1. The utility model discloses in, this fire-retardant electric wire is provided with interior fire-retardant layer and interior fire-retardant filling layer in inside, can prevent that the overheated emergence condition of catching fire of conductor for inside is fire-retardant, secondly has cup jointed the fire-retardant sleeve pipe of a plurality of in the outside of electric wire body, is used for preventing that there is the fire source in the electric wire body outside to cause the electric wire body to catch fire, realizes inside and outside fire prevention simultaneously, improves its fire behaviour, has increased the security that the electric wire body used.

2. The utility model discloses in, this fire-retardant electric wire for the fire-retardant sleeve pipe of outside fire prevention cup joints on the electric wire body, and including the fire-retardant sleeve pipe of a plurality of cup joints through the outer joint pipe cooperation fixing bolt fixes, secondly pack thermal-insulated asbestos in fire-retardant intraduct is provided with the intussuseption, possess fine thermal-insulated effect for on fire-retardant sleeve pipe is difficult for transmitting the temperature to the electric wire body when being heated, prevent that the electric wire body from being heated and damaging, further improvement the security that the electric wire body used.

Drawings

Fig. 1 is a schematic structural view of a flame-retardant electric wire according to the present invention;

Fig. 2 is a schematic structural view of a flame-retardant sleeve of a flame-retardant electric wire according to the present invention;

Fig. 3 is a schematic cross-sectional structure view of the wire body of the flame-retardant wire according to the present invention.

Illustration of the drawings:

1. A wire body; 11. a conductor; 12. an inner insulating layer; 13. an inner flame retardant layer; 14. a flame retardant filler layer; 15. an inner sheath; 16. a shielding layer; 17. an outer sheath; 2. a flame-retardant sleeve; 3. an internal connection pipe; 4. bolt holes; 5. an outer connecting pipe; 6. fixing the bolt; 7. filling heat insulation asbestos in the chamber; 8. an inner tube.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, a flame-retardant electric wire includes a wire body 1 and a flame-retardant sleeve 2;

The outer surface wall of the wire body 1 is sleeved with a plurality of flame-retardant sleeves 2, one end of each flame-retardant sleeve 2 is provided with an inner connecting pipe 3, the other end of each flame-retardant sleeve 2 is provided with an outer connecting pipe 5, the inner connecting pipe 3 is provided with a bolt hole 4, and the outer connecting pipe 5 is connected with a fixing bolt 6 through a bolt;

An inner pipe 8 is sleeved in the flame-retardant sleeve 2, and the inner side of the inner pipe 8 and the inside of the flame-retardant sleeve 2 are filled with filled heat-insulating asbestos 7.

The electric wire body 1 comprises a conductor 11, an inner insulating layer 12, an inner flame-retardant layer 13 and a flame-retardant filling layer 14, wherein the inner insulating layer 12 is sleeved on the outer side of the conductor 11, the inner flame-retardant layer 13 is arranged on the outer side of the inner insulating layer 12, an inner sheath 15 is arranged on the outer side of the inner insulating layer 12, the flame-retardant filling layer 14 with a filling hole is filled in a cavity between the inner sheath 15 and the inner flame-retardant layer 13, a shielding layer 16 is arranged on the outer side of the inner sheath 15, and an outer sheath 17 is sleeved on the outer.

The outer diameter of the inner connecting pipe 3 is smaller than the inner diameter of the outer connecting pipe 5, a sealing gasket is sleeved on the outer surface wall of the inner connecting pipe 3, and insulating rubber gaskets are sleeved on the inner surface walls of the inner connecting pipe 3 and the outer connecting pipe 5.

The working principle is as follows: when the flame-retardant electric wire is used, firstly, the inner flame-retardant layer 13 and the flame-retardant filling layer 14 which are arranged in the electric wire body 1 can prevent the conductor 11 from being overheated to cause a fire situation and are used for internal flame retardance, secondly, the outer side of the electric wire body 1 is sleeved with a plurality of flame-retardant sleeves 2 for preventing the electric wire body 1 from being ignited due to a fire source at the outer side of the electric wire body 1, so as to realize the simultaneous internal and external fire prevention and improve the flame-retardant performance, the flame-retardant sleeves 2 for external fire prevention are sleeved on the electric wire body 1, the plurality of flame-retardant sleeves 2 are sleeved on the inner connecting pipe 3 through the outer connecting pipe 5 and are matched with the fixing bolt 6 for fixing, secondly, the flame-retardant sleeve 2 is internally provided with the filled heat-insulating asbestos 7 which has good heat-insulating function, make fire-retardant sleeve pipe 2 be difficult for transmitting the temperature to electric wire body 1 when being heated on, prevent that electric wire body 1 from being heated and damaging, further improvement the security of electric wire body 1 use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The flame-retardant wire is characterized by comprising a wire body (1) and a flame-retardant sleeve (2);

The wire comprises an electric wire body (1), wherein the outer surface wall of the electric wire body (1) is sleeved with a plurality of flame-retardant sleeves (2), one ends of the flame-retardant sleeves (2) are provided with inner connecting pipes (3), the other ends of the flame-retardant sleeves (2) are provided with outer connecting pipes (5), the inner connecting pipes (3) are provided with bolt holes (4), and the outer connecting pipes (5) are connected with fixing bolts (6) through bolts;

An inner pipe (8) is sleeved inside the flame-retardant sleeve (2), and the inner side of the inner pipe (8) and the inside of the flame-retardant sleeve (2) are filled with filled heat-insulating asbestos (7).

2. The flame-retardant electric wire according to claim 1, wherein the electric wire body (1) is composed of a conductor (11), an inner insulating layer (12), an inner flame-retardant layer (13) and a flame-retardant filling layer (14), the inner insulating layer (12) is sleeved outside the conductor (11), the inner flame-retardant layer (13) is arranged outside the inner insulating layer (12), an inner sheath (15) is arranged outside the inner insulating layer (12), and a cavity between the inner sheath (15) and the inner flame-retardant layer (13) is filled with the flame-retardant filling layer (14).

3. A flame retardant electric wire according to claim 2, wherein a shielding layer (16) is provided on the outside of the inner sheath (15), and an outer sheath (17) is sleeved on the outside of the shielding layer (16).

4. The flame-retardant electric wire according to claim 1, wherein the inner connecting pipe (3) has an outer diameter smaller than the inner diameter of the outer connecting pipe (5), and a gasket is sleeved on the outer surface wall of the inner connecting pipe (3).

5. The flame-retardant electric wire according to claim 1, wherein the inner surface walls of the inner connecting pipe (3) and the outer connecting pipe (5) are sleeved with insulating rubber gaskets.