CN218214703U

CN218214703U - Cable structure of halogen-free flame-retardant engineering cable

Info

Publication number: CN218214703U
Application number: CN202221760804.8U
Authority: CN
Inventors: 张秋峰; 向军; 朱安贵; 张海龙
Original assignee: Baosheng Science and Technology Innovation Co Ltd
Current assignee: Baosheng Science and Technology Innovation Co Ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2023-01-03
Anticipated expiration: 2032-07-08

Abstract

The utility model discloses a cable structure of steamed flame retarded engineering cable of nothing relates to steamed flame retarded cable technical field, including the cable core, the inside of cable core is provided with the copper conductor, the outside of copper conductor is provided with interior mica tape, the outside of interior mica tape is provided with the internal insulation layer, one side of cable core is provided with the buffering strip, the outside of buffering strip is provided with the multiunit buffer block, the outside of buffer block is provided with outer mica tape, be provided with the filling layer between outer mica tape and the buffer block. The utility model discloses a buffering strip, the buffer block that set up, buffering strip, buffer block all adopt silica gel rubber materials, and the buffer block equidistance sets up in the periphery of buffering strip for can play the purpose of carrying out effective buffering to the effort, thereby can prevent that the effort from directly acting on the cable core, reduce the damage that causes the cable core, and then the life of extension cable can improve the toughness of cable simultaneously.

Description

Cable structure of halogen-free flame-retardant engineering cable

Technical Field

The utility model relates to a there is not steamed flame retarded cable technical field specifically is a there is not cable structure of steamed flame retarded engineering cable.

Background

The traditional PVC cable is easy to decompose and escape a large amount of highly toxic and corrosive hydrogen chloride gas after being heated when a fire disaster happens, and a large amount of highly toxic dense smoke is generated, thereby causing great life and property loss and bringing great difficulty to rescue work.

In order to avoid and reduce fire and secondary damage caused by the fire as much as possible, people find that the problem can be effectively solved by changing the outer layer material and the process used by the product through a great deal of research for more than ten years. The halogen-free low-smoke flame-retardant cable is mainly characterized in that all materials do not contain halogen, the smoke quantity released during combustion is small, the light transmittance is good, rescue work is greatly facilitated, and casualties and property loss can be reduced to a great extent.

According to chinese patent No. CN 111627607A, a halogen-free flame-retardant low-voltage cable is disclosed, which comprises a cable core, and is characterized in that: the cable core central point puts for the copper conductor, and copper conductor outside is provided with interior mica tape, and interior mica tape outside is provided with the insulating layer, and the insulating layer outside is provided with the isolation layer, and three cable cores are regular triangle-shaped and arrange, and the cable core outside is provided with the magnesium hydrate filling layer, and the magnesium hydrate filling layer outside is around wrapping outer mica tape, and outer mica tape outside is provided with the fire-retardant area of low pressure halogen-free, and the fire-retardant outband of low pressure halogen-free is provided with the halogen-free sheath.

To above-mentioned relevant scheme, the inventor thinks above-mentioned cable is when using, and shock resistance is not strong, for example when using in some comparatively abominable places of condition, the cable often can cause the inside copper conductor core damage of cable because of receiving external force impact in the in-process of using, leads to cable life to reduce, and the potential safety hazard is higher.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a there is not steamed fire-retardant engineering cable's cable structure to solve the not strong technical problem of current cable shock resistance.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cable structure of fire-retardant engineering cable of nothing halogen, includes the cable core, the inside of cable core is provided with the copper conductor, the outside of copper conductor is provided with interior mica tape, the outside of interior mica tape is provided with the internal insulation layer, one side of cable core is provided with the buffering strip, the outside of buffering strip is provided with the multiunit buffer block, the outside of buffer block is provided with outer mica tape, be provided with the filling layer between outer mica tape and the buffer block, the outside in outer mica tape is provided with the outer insulation layer, the outside of outer insulation layer is provided with low smoke and zero halogen flame retardant sheath.

Through adopting above-mentioned technical scheme, buffering strip, buffer block all adopt silica gel rubber materials, and the buffer block equidistance sets up the periphery at the buffering strip for can play and carry out the purpose of effective buffering to the effort, thereby can prevent that the effort direct action from on the cable core, reduce the damage that causes the cable core, and then the life of extension cable, can improve the toughness of cable simultaneously.

The utility model discloses further set up to, the buffer block is provided with three groups, three groups the buffer block equidistance distributes in the outside of buffering strip.

Through adopting above-mentioned technical scheme, can play the purpose of effectively buffering the effort to can prevent that the effort direct action from reducing the damage that causes the cable core on the cable core, and then prolong the life of cable, can improve the toughness of cable simultaneously.

The utility model discloses further set up to, the filling layer is the fire retardant.

Through adopting above-mentioned technical scheme, can make the cable have preferred flame retardant efficiency.

The utility model discloses further set up as, interior mica tape, outer mica tape are synthetic mica.

Through adopting above-mentioned technical scheme, utilize to cover in corresponding position around the package technique, can have fire-retardant fire resistance.

The utility model discloses further set up as, inner insulating layer, outer insulating layer are ceramic fire-resistant silicon rubber material.

By adopting the technical scheme, the insulation of the cable can be better through multiple insulation.

The utility model discloses further set up to, the cable core is provided with three groups, three groups the cable core is regular triangle distribution.

By adopting the technical scheme, mutual balance of magnetic fields can be facilitated.

To sum up, the utility model discloses mainly have following beneficial effect:

1. the utility model discloses a buffering strip, the buffer block that set up, buffering strip, buffer block all adopt silica gel rubber materials, and the buffer block equidistance sets up in the periphery of buffering strip for can play the purpose of carrying out effective buffering to the effort, thereby can prevent that the effort from directly acting on the cable core, reduce the damage that causes the cable core, and then the life of extension cable can improve the toughness of cable simultaneously.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a side sectional view of the present invention.

In the figure: 1. a cable core; 2. a copper conductor; 3. an inner mica tape; 4. an inner insulating layer; 5. a buffer strip; 6. a buffer block; 7. a filling layer; 8. an outer mica tape; 9. an outer insulating layer; 10. a low-smoke halogen-free flame-retardant sheath.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The following describes an embodiment of the present invention according to its overall structure.

A cable structure of a halogen-free flame-retardant engineering cable is shown in figures 1-3 and comprises three cable cores 1, wherein the three cable cores 1 are distributed in a regular triangle manner, and mutual balance of magnetic fields can be facilitated.

The inside of cable core 1 is provided with copper conductor 2, one side of cable core 1 is provided with buffering strip 5, the outside of buffering strip 5 is provided with multiunit buffer block 6, buffer block 6 is provided with three groups, 6 equidistance distributions of buffer block of three groups are in the outside of buffering strip 5, can play the purpose of effectively buffering the effort, thereby can prevent that the effort from directly acting on cable core 1, reduce the damage that leads to the fact 1 cable core, and then the life of extension cable, can improve the toughness of cable simultaneously.

The outer side of the copper conductor 2 is provided with the inner mica tape 3, the outer side of the buffer block 6 is provided with the outer mica tape 8, the inner mica tape 3 and the outer mica tape 8 are both synthetic mica, and the synthetic mica are covered at corresponding positions by using a wrapping technology, so that the flame-retardant and fire-resistant mica tape has flame-retardant and fire-resistant properties.

A filling layer 7 is arranged between the outer mica tape 8 and the buffer block 6, and the filling layer 7 is a flame retardant, so that the cable has a good flame retardant effect.

The outer side of the inner mica tape 3 is provided with an inner insulating layer 4, the outer side of the outer mica tape 8 is provided with an outer insulating layer 9, the inner insulating layer 4 and the outer insulating layer 9 are both made of ceramic fire-resistant silicon rubber materials, and the cable is enabled to be better in insulating property through multiple insulation.

The outside of outer insulating layer 9 is provided with low smoke and zero halogen flame retardant sheath 10, and the burning only has very little fume emission when containing this product cable, and no corrosivity or hazardous gas produce, has ensured the personal safety effectively.

The utility model discloses a theory of operation does: during the use, because buffering strip 5, buffer block 6 all adopt silica gel rubber material, and buffer block 6 equidistance sets up in the periphery of buffering strip 5 for can play the purpose of effectively buffering the effort, thereby can prevent that the effort from directly acting on cable core 1, reduce the damage that leads to the fact cable core 1, and then the life of extension cable, can improve the toughness of cable simultaneously.

Although embodiments of the present invention have been shown and described, it is intended that the present embodiments be illustrative only and not limiting to the invention, and that the particular features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples, and that modifications, substitutions, variations, and the like, which are not inventive in light of the above teachings, may be made to the embodiments by those skilled in the art without departing from the principles and spirit of the present invention, but are to be construed as broadly as the following claims.

Claims

1. The utility model provides a cable structure of fire-retardant engineering cable of halogen-free, includes cable core (1), its characterized in that: the inside of cable core (1) is provided with copper conductor (2), mica tape (3) in being provided with in the outside of copper conductor (2), the outside of interior mica tape (3) is provided with internal insulation layer (4), one side of cable core (1) is provided with buffer strip (5), the outside of buffer strip (5) is provided with multiunit buffer block (6), the outside of buffer block (6) is provided with outer mica tape (8), be provided with between outer mica tape (8) and buffer block (6) filling layer (7), the outside of outer mica tape (8) is provided with outer insulating layer (9), the outside of outer insulating layer (9) is provided with low smoke and zero halogen flame retardant sheath (10).

2. The cable structure of the halogen-free flame-retardant engineering cable according to claim 1, wherein: buffer block (6) are provided with three groups, three groups buffer block (6) equidistance distributes in the outside of buffering strip (5).

3. The cable structure of the halogen-free flame-retardant engineering cable according to claim 1, characterized in that: the filling layer (7) is a flame retardant.

4. The cable structure of the halogen-free flame-retardant engineering cable according to claim 1, wherein: the inner mica tape (3) and the outer mica tape (8) are both synthetic mica.

5. The cable structure of the halogen-free flame-retardant engineering cable according to claim 1, characterized in that: the inner insulating layer (4) and the outer insulating layer (9) are both made of ceramic fire-resistant silicon rubber materials.

6. The cable structure of the halogen-free flame-retardant engineering cable according to claim 1, wherein: the cable core (1) is provided with three groups, three groups the cable core (1) is in regular triangular distribution.