CN218730015U

CN218730015U - Anti-pulling flame-retardant environment-friendly cable

Info

Publication number: CN218730015U
Application number: CN202223039424.8U
Authority: CN
Inventors: 解丽丽; 解楠楠
Original assignee: Zepeng Cable Co ltd
Current assignee: Zepeng Cable Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-03-24
Anticipated expiration: 2032-11-15

Abstract

The utility model relates to a cable technical field provides a fire-retardant environmental protection cable of tensile, including oversheath layer and inner sheath layer, the junction equidistance between oversheath layer and the inner sheath layer is provided with a set of tensile structure, and the inboard on inner sheath layer is provided with bearing structure, and clearance department between bearing structure and the inner sheath layer is provided with the cable, and the outside of cable is provided with the insulating layer, and it has fire retardant layer one to fill between insulating layer and the cable, and it has fire retardant layer two to fill between insulating layer and the inner sheath layer. The utility model relates to a rational in infrastructure, through the spacing ring that is equipped with, can play limiting displacement to the position between outer sheath layer and the inner sheath layer, like this when pulling this cable, can avoid receiving between outer sheath layer and the inner sheath layer and pull the possibility that not hard up separation appears, and can play the effect of collecting to the whole of cable through the spacing ring, improve the bulk strength of cable, through the steel wire line that is equipped with, can further improve the tensile strength of this cable.

Description

Anti-pulling flame-retardant environment-friendly cable

Technical Field

The utility model relates to a cable technical field, it is concrete, relate to a fire-retardant environmental protection cable of pulling-resistant.

Background

Electrical wire cables are made of one or more mutually insulated conductors and an outer insulating protective layer, the conductors carrying power or information from one place to another, usually rope-like cables made by twisting several or groups of conductors (at least two in each group), each group being insulated from each other and usually twisted around a centre, the whole being covered with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation, and the more complex the product structure is, the more the superimposed layers are.

With the increasing need for urban safety, flame retardancy and fire resistance have become the main trends in cable products. If accidental burning happens to the cable with poor fire resistance, disasters are easily caused, a large number of harmful substances are released, serious pollution and economic loss are caused, and the cable is likely to be broken due to dead weight of the cable or the action of other external forces during long-distance conveying, so that the service life of the cable is affected. Therefore, the flame-retardant environment-friendly cable capable of resisting pulling is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

One) technical problem to be solved

The utility model aims at providing a fire-retardant environmental protection cable that tensile was dragged in order to compensate prior art not enough.

II) technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a fire-retardant environmental protection cable of tensile, includes oversheath layer and inner sheath layer, junction equidistance between oversheath layer and the inner sheath layer is provided with a set of tensile structure, the inboard on inner sheath layer is provided with bearing structure, clearance department between bearing structure and the inner sheath layer is provided with the cable, the outside of cable is provided with the insulating layer, it has fire retardant layer one to fill between insulating layer and the cable, it has fire retardant layer two to fill between insulating layer and the inner sheath layer.

Furthermore, tensile structure includes the spacing ring, the top of spacing ring cooperatees and sets up the spacing inslot that offers at outer restrictive coating inner wall, the bottom of spacing ring cooperatees and sets up in which spacing inslot that offers is at inner restrictive coating outer wall is two.

Furthermore, the supporting structure comprises a cross-shaped supporting frame, wherein supporting blocks in an outer splayed shape are fixedly arranged on four outer end faces of the supporting frame, and one end of each supporting block is tightly abutted to the inner wall of the inner sheath layer.

Furthermore, a group of steel wires are equidistantly arranged in the inner sheath layer along the circumferential direction and are woven by a plurality of steel wires.

Furthermore, the outer sheath layer and the inner sheath layer are both made of a polyfluorinated ethylene propylene material.

Further, the insulating layer is a plastic insulating layer made of polyvinyl chloride.

Further, the first flame retardant layer is an aluminum hydroxide flame retardant.

Further, the second flame retardant layer is a high heat-resistant boehmite flame retardant.

Thirdly), the beneficial effects are that:

compared with the prior art, this fire-retardant environmental protection cable that pulls resistant has following beneficial effect:

1. the utility model discloses a spacing ring that is equipped with can play limiting displacement to the position between outer sheath layer and the inner sheath layer, like this when pulling this cable, can avoid receiving between outer sheath layer and the inner sheath layer and pull the possibility that not hard up separation appears, and can play the effect of collecting to the whole of cable through the spacing ring, improve the bulk strength of cable, through the steel wire line that is equipped with, can further improve the tensile strength of this cable.

2. The utility model discloses a support frame and the supporting shoe that are equipped with cooperate, can improve the whole compressive strength of this cable, and through the supporting shoe that is equipped with, through fire retardant layer one and fire retardant layer two-phase cooperation, can improve the whole flame retardant efficiency of this cable, can improve the fire resistance of cable.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

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

fig. 2 is a schematic view of the front structure of the cable of the present invention;

fig. 3 is a schematic view of the tensile structure of the present invention;

fig. 4 is a schematic view of the supporting structure of the present invention.

In the figure: 1. an outer jacket layer; 2. an inner jacket layer; 3. a tensile structure; 301. a limiting ring; 302. a first limiting groove; 303. a second limiting groove; 4. a support structure; 401. a support frame; 402. a support block; 5. a cable; 6. an insulating layer; 7. a first flame retardant layer; 8. a second flame retardant layer; 9. a steel wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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. All other embodiments, which can be obtained by a person skilled in the art without inventive work, are related to the scope of protection of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: the utility model provides a fire-retardant environmental protection cable that tensile was dragged, includes oversheath layer 1 and inner sheath layer 2, the junction equidistance between oversheath layer 1 and the inner sheath layer 2 is provided with a set of tensile structure 3, the inboard of inner sheath layer 2 is provided with bearing structure 4, clearance department between bearing structure 4 and the inner sheath layer 2 is provided with cable 5, cable 5's outside is provided with insulating layer 6, it has fire retardant layer one 7 to fill between insulating layer 6 and the cable 5, it has fire retardant layer two 8 to fill between insulating layer 6 and the inner sheath layer 2.

Tensile structure 3 includes spacing ring 301, and the top of spacing ring 301 cooperatees and sets up in the spacing groove 302 that the inner wall was seted up on outer sheath layer 1, and the bottom of spacing ring 301 cooperatees and sets up including in which spacing groove two 303 that sets up of sheath layer 2 outer wall.

Through the spacing ring 301 that is equipped with, can play limiting displacement to the position between outer sheath layer 1 and the inner sheath layer 2, when this cable of pulling, can avoid receiving between outer sheath layer 1 and the inner sheath layer 2 to drag the possibility that appears not hard up separation like this, and can play the effect of collecting through spacing ring 301 to the whole of cable, improve the bulk strength of cable.

The supporting structure 4 includes a supporting frame 401 that is cross-shaped, four outer end faces of the supporting frame 401 are all fixedly provided with supporting blocks 402 that are in an outer splayed shape, and one end of each supporting block 402 is abutted against the inner wall of the inner jacket layer 2.

Through the support frame 401 and the supporting shoe 402 that are equipped with cooperate, can improve the whole compressive strength of this cable, and through the supporting shoe 402 that is equipped with.

A group of steel wires 9 are equidistantly arranged in the inner sheath layer 2 along the circumferential direction, and the steel wires 9 are woven by a plurality of steel wires.

The tensile strength of the cable can be further improved by the provided steel wire 9.

The outer sheath layer 1 and the inner sheath layer 2 are both made of fluorinated ethylene propylene.

Through outer sheath layer 1 and the inner sheath layer 2 that are equipped with, can play the effect of protection to cable 5.

The insulating layer 6 is a plastic insulating layer made of polyvinyl chloride.

The cable 5 can be insulated by the insulating layer 6 provided.

The first flame retardant layer 7 is an aluminum hydroxide flame retardant; and the second flame retardant layer 8 is a high-heat-resistant boehmite flame retardant.

Through the cooperation of the first flame retardant layer 7 and the second flame retardant layer 8, the overall flame retardant effect of the cable can be improved, and the fire resistance of the cable can be improved.

The working principle is as follows: through the spacing ring 301 that is equipped with, can play limiting displacement to the position between outer sheath layer 1 and the inner sheath layer 2, like this when this cable of pulling, can avoid receiving between outer sheath layer 1 and the inner sheath layer 2 and pull the possibility that not hard up separation appears, and can play the effect of collecting to the whole of cable through spacing ring 301, improve the bulk strength of cable, steel wire line 9 through being equipped with, can further improve the tensile strength of this cable, cooperate through support frame 401 and the supporting shoe 402 that is equipped with, can improve the whole compressive strength of this cable, and through the supporting shoe 402 that is equipped with, cooperate through flame retardant layer one 7 and flame retardant layer two 8, can improve the whole flame retardant efficiency of this cable, can improve the fire behavior of cable.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a fire-retardant environmental protection cable of tensile, includes oversheath layer (1) and inner sheath layer (2), its characterized in that: junction equidistance between oversheath layer (1) and inner sheath layer (2) is provided with a set of tensile structure (3), the inboard of inner sheath layer (2) is provided with bearing structure (4), clearance department between bearing structure (4) and inner sheath layer (2) is provided with cable (5), the outside of cable (5) is provided with insulating layer (6), it has fire retardant layer one (7) to fill between insulating layer (6) and cable (5), it has fire retardant layer two (8) to fill between insulating layer (6) and inner sheath layer (2).

2. The tear resistant, flame retardant, environmentally friendly cable of claim 1, wherein: tensile structure (3) include spacing ring (301), the top of spacing ring (301) cooperatees and sets up in spacing groove one (302) that outer restrictive coating (1) inner wall was seted up, the bottom of spacing ring (301) cooperatees and sets up in which spacing groove two (303) of seting up at inner restrictive coating (2) outer wall.

3. The tear resistant, flame retardant, environmentally friendly cable of claim 1, wherein: the supporting structure (4) comprises a cross-shaped supporting frame (401), four outer end faces of the supporting frame (401) are fixedly provided with supporting blocks (402) which are shaped like an outer Chinese character 'ba', and one ends of the supporting blocks (402) are abutted to the inner wall of the inner sheath layer (2).

4. The tear-resistant, flame-retardant, environmentally friendly cable of claim 1, wherein: the inner part of the inner sheath layer (2) is equidistantly provided with a group of steel wires (9) along the circumferential direction, and the steel wires (9) are woven by a plurality of steel wires.

5. The tear-resistant, flame-retardant, environmentally friendly cable of claim 1, wherein: the outer sheath layer (1) and the inner sheath layer (2) are both made of fluorinated ethylene propylene.

6. The tear-resistant, flame-retardant, environmentally friendly cable of claim 1, wherein: the insulating layer (6) is a plastic insulating layer made of polyvinyl chloride.

7. The tear-resistant, flame-retardant, environmentally friendly cable of claim 1, wherein: the first flame retardant layer (7) is an aluminum hydroxide flame retardant.

8. The tear-resistant, flame-retardant, environmentally friendly cable of claim 1, wherein: and the second flame retardant layer (8) is a high-heat-resistant boehmite flame retardant.