CN218274044U

CN218274044U - High flame-retardant insulated wire and cable

Info

Publication number: CN218274044U
Application number: CN202221942619.0U
Authority: CN
Inventors: 刘育奇
Original assignee: Jinbao Lisheng Technology Shenzhen Co ltd
Current assignee: Jinbao Lisheng Technology Shenzhen Co ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-01-10
Anticipated expiration: 2032-07-26

Abstract

The utility model relates to the technical field of wire and cable, and a high fire-retardant insulated wire and cable is disclosed, including the outer insulating layer, the inner wall fixedly connected with triangular supports frame of outer insulating layer, be equipped with the bracing piece in the triangular supports frame, be equipped with two baffles between bracing piece and the triangular supports frame, three electric core has been placed in the triangular supports frame, electric core overcoat is equipped with the inner insulating layer, the fixed cover of outer wall of outer insulating layer is equipped with the shielding layer, the fixed cover of shielding layer is equipped with fire-retardant layer. The utility model discloses can bury deeply at the cable when underneath, improve the compressive capacity of cable, avoid the cable to receive pressure too big can cause protective layer splitting and the cracked problem of electric core, improve the life of cable.

Description

High flame-retardant insulated wire and cable

Technical Field

The utility model relates to a wire and cable technical field especially relates to a high flame retardant insulation wire and cable.

Background

The wire and cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion, the wire and cable in a broad sense is also called as cable for short, the cable in a narrow sense is insulated cable, and it can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, total protective layers and outer sheaths, the cable may also have additional conductors without insulation.

The existing electric wire and cable can be buried underground, the extrusion force of the cable under the ground is large, the protective layer of the cable is easy to break, and the service life of the cable is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art wire and cable can bury underground when using, and the extrusion force that the cable received underground is great, causes breaking of cable protective layer easily, influences the life's of cable problem, and the high flame retardant insulated wire and cable who proposes.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a high fire-retardant insulated wire and cable, includes the external insulation layer, the inner wall fixedly connected with triangular supports frame of external insulation layer, be equipped with the bracing piece in the triangular supports frame, be equipped with two baffles between bracing piece and the triangular supports frame, three electric core has been placed in the triangular supports frame, electric core overcoat is equipped with the internal insulation layer, the fixed cover of external insulation layer's outer wall is equipped with the shielding layer, the fixed cover of shielding layer is equipped with fire-retardant layer.

Preferably, the fire-retardant layer overcoat is equipped with two mutual articulated lag, two the equal fixedly connected with sloping block of last lateral wall of lag, two the sloping block overcoat is equipped with same cutting ferrule.

Preferably, the upper side wall of the cutting sleeve is provided with a groove, the side wall of the groove is provided with two limiting holes, limiting pins are inserted in the limiting holes, the upper side wall of the inclined block is provided with limiting grooves matched with the limiting pins, the upper ends of the two limiting pins are fixedly connected with the same pulling plate, and the side wall of one side of the pulling plate opposite to the groove is fixedly connected with two springs.

Preferably, the triangular support frame is filled with flame-retardant polypropylene filler.

Preferably, a supporting net rack is arranged between the outer insulating layer and the triangular supporting frame.

Preferably, the material of the flame-retardant layer is chlorosulfonated polyethylene.

Preferably, the spring is made of copper alloy.

Compared with the prior art, the utility model provides a high flame retardant insulated wire and cable possesses following beneficial effect:

this high fire-retardant insulated wire and cable, through outer insulating layer, triangular supports frame, bracing piece, baffle, electric core, internal insulation layer, shielding layer, fire-retardant layer, lag, sloping block, the cutting ferrule that sets up, can bury deeply at the cable when underneath, improve the compressive capacity of cable, avoid the cable to receive the too big problem that can cause protective layer splitting and electric core fracture of pressure, improved the life of cable.

Drawings

Fig. 1 is a schematic structural view of a high flame retardant insulated wire and cable according to the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1.

In the figure: 1. an outer insulating layer; 2. a triangular support frame; 3. a support bar; 4. a partition plate; 5. an electric core; 6. an inner insulating layer; 7. a shielding layer; 8. a flame retardant layer; 9. a protective sleeve; 10. a sloping block; 11. a ferrule; 12. a groove; 13. a limiting hole; 14. a spacing pin; 15. a limiting groove; 16. pulling a plate; 17. a spring; 18. a flame retardant polypropylene filler; 19. and a net frame is supported.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a high flame-retardant insulated wire and cable comprises an outer insulating layer 1, wherein a triangular support frame 2 is fixedly connected to the inner wall of the outer insulating layer 1, a support rod 3 is arranged in the triangular support frame 2, two partition plates 4 are arranged between the support rod 3 and the triangular support frame 2, three electric cores 5 are placed in the triangular support frame 2, an inner insulating layer 6 is sleeved outside the electric cores 5, a shielding layer 7 is fixedly sleeved on the outer wall of the outer insulating layer 1, and a flame-retardant layer 8 is sleeved outside the shielding layer 7.

The 8 overcoat in fire-retardant layer is equipped with two mutual articulated lag 9, and the equal fixedly connected with sloping block 10 of the last lateral wall of two lag 9, two sloping block 10 overcoat are equipped with same cutting ferrule 11.

The upper side wall of the cutting sleeve 11 is provided with a groove 12, the side wall of the groove 12 is provided with two limiting holes 13, limiting pins 14 are inserted in the limiting holes 13, the upper side wall of the inclined block 10 is provided with limiting grooves 15 matched with the limiting pins 14, the upper ends of the two limiting pins 14 are fixedly connected with the same pull plate 16, and the side wall of one side, opposite to the groove 12, of the pull plate 16 is fixedly connected with two springs 17.

The triangular support frame 2 is filled with flame-retardant polypropylene filler 18, so that the flame-retardant capability of the cable is further improved.

A supporting net rack 19 is arranged between the outer insulating layer 1 and the triangular support frame 2, so that the supporting strength between the outer insulating layer 1 and the triangular support frame 2 is improved.

The flame retardant layer 8 is made of chlorosulfonated polyethylene, the chlorosulfonated polyethylene is prepared by chlorination and chlorosulfonation of low-density polyethylene or high-density polyethylene, is a white or yellow elastomer, can be dissolved in aromatic hydrocarbon and chlorinated hydrocarbon, and is insoluble in fat and alcohol, can only swell and be insoluble in ketone and ether, and has excellent ozone resistance, atmospheric aging resistance, chemical corrosion resistance and the like, and better physical and mechanical properties, aging resistance, heat resistance, low temperature resistance, oil resistance, flame resistance, wear resistance and electric insulation resistance.

The spring 17 is made of copper alloy, so that the corrosion resistance of the spring 17 can be improved.

The utility model discloses in, during the use, when receiving the extrusion, lag 9 through the outside setting reduces some pressure earlier, and lag 9 is the circular arc structure, and compressive capacity is stronger, and the triangular supports frame 2 utilizes triangle stability can reduce some pressure again, can bury deeply at the cable when underneath, improves the compressive capacity of cable, avoids the cable to receive the too big problem that can cause protective layer splitting and electric core fracture of pressure, has improved the life of cable.

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 design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a high fire-retardant insulated wire and cable, includes external insulation layer (1), its characterized in that, the inner wall fixedly connected with triangular supports frame (2) of external insulation layer (1), be equipped with bracing piece (3) in triangular supports frame (2), be equipped with two baffle (4) between bracing piece (3) and triangular supports frame (2), three electric core (5) have been placed in triangular supports frame (2), electric core (5) overcoat is equipped with internal insulation layer (6), the fixed cover of outer wall of external insulation layer (1) is equipped with shielding layer (7), shielding layer (7) external fixation cover is equipped with fire-retardant layer (8).

2. A high flame-retardant insulated electric wire and cable as claimed in claim 1, characterized in that said flame-retardant layer (8) is sheathed with two mutually hinged protective sheaths (9), the upper side walls of both said protective sheaths (9) are fixedly connected with ramp blocks (10), and the same ferrule (11) is sheathed outside both said ramp blocks (10).

3. The high flame-retardant insulated wire and cable as claimed in claim 2, wherein the upper side wall of the ferrule (11) is provided with a groove (12), the side wall of the groove (12) is provided with two limiting holes (13), a limiting pin (14) is inserted into each limiting hole (13), the upper side wall of the inclined block (10) is provided with a limiting groove (15) matched with the limiting pin (14), the upper ends of the two limiting pins (14) are fixedly connected with the same pulling plate (16), and the side wall of one side of the pulling plate (16) opposite to the groove (12) is fixedly connected with two springs (17).

4. A high flame-retardant insulated electric wire and cable according to claim 1, characterized in that the triangular support frame (2) is filled with flame-retardant polypropylene filler (18).

5. The high flame retardant insulated wire and cable according to claim 1, wherein a supporting grid (19) is provided between the outer insulating layer (1) and the triangular support frame (2).

6. The high flame retardant insulated wire and cable according to claim 1, wherein the flame retardant layer (8) is chlorosulfonated polyethylene.

7. A high flame-retardant insulated electric wire and cable as claimed in claim 3, wherein the material of said spring (17) is copper alloy.