CN218447319U

CN218447319U - Environment-friendly halogen-free low-smoke armored fire-resistant cable

Info

Publication number: CN218447319U
Application number: CN202222379736.7U
Authority: CN
Inventors: 袁阳; 袁贵海; 唐维群; 陈茂
Original assignee: Yunnan Chuncheng Cable Manufacturing Co ltd
Current assignee: Yunnan Chuncheng Cable Manufacturing Co ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2023-02-03
Anticipated expiration: 2032-09-08

Abstract

The utility model belongs to the field of fire-resistant cables, in particular to an environment-friendly halogen-free low-smoke armored fire-resistant cable, which solves the problems of weak fire resistance and easy pressure damage in the prior art, and comprises a halogen-free low-smoke outer layer, an armored sleeve and a conductor, wherein a plurality of support plates which are annularly and uniformly distributed are fixedly arranged between the halogen-free low-smoke outer layer and the armored sleeve, a sleeve hole is arranged in the armored sleeve, and a retaining sleeve is nested in the sleeve hole; the conductor includes that lead the core and lead the core outward of a plurality of in a plurality of, and is a plurality of interior lead the core setting and be in keep the inside of cover, through the setting of armor cover, keep cover isotructure, during the burning of conflagration, the outside of cable can be isolated with flame by the dry powder layer, and inside main part with inside keeps down, if burning strength leads to the armor to warp, also can leave reuse with the reservation cover of inside, and fire-resistant ability is strong.

Description

Environment-friendly halogen-free low-smoke armored fire-resistant cable

Technical Field

The utility model relates to a fire resisting cable technical field specifically is a there is not steamed low cigarette armor fire resisting cable of environmental protection.

Background

Currently, a fire-resistant cable refers to a cable that can be kept in operation safely for a certain period of time in the event of flame combustion. Fire-resistant cables are widely used in places related to fire safety and fire life saving, such as high-rise buildings, underground railways, underground streets, large power stations, and important industrial and mining enterprises, for example, power supply lines and control lines of emergency facilities such as fire-fighting equipment and emergency guide lamps.

The halogen-free low-smoke cable in the prior art has the following defects: firstly, although the cable can cause less smoke after being burnt by fire, the self fireproof performance and fire resistance of the cable are not strong, and the inner guide core cannot be used continuously; secondly, the cable has a single structure and insufficient pressure resistance and is easy to damage after being extruded.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an environmental protection does not have steamed low cigarette armor fire resisting cable, has solved the problem that fire resistance is weak, easy pressurized damage.

In order to achieve the above object, the utility model provides a following technical scheme: an environment-friendly halogen-free low-smoke armored fire-resistant cable comprises a halogen-free low-smoke outer layer, an armored sleeve and a conductor, wherein a plurality of support plates which are uniformly distributed in an annular mode are fixedly arranged between the halogen-free low-smoke outer layer and the armored sleeve, a sleeve hole is formed in the armored sleeve, and a retaining sleeve is nested in the sleeve hole;

the conductor comprises a plurality of inner conducting cores and a plurality of outer conducting cores, the inner conducting cores are arranged inside the retaining sleeve, and the outer conducting cores are uniformly distributed in the armor sleeve in an annular mode.

Preferably, both ends of the support plate are respectively provided with a reinforcing block and a connecting plate which are integrally formed, and both sides of the reinforcing block are provided with bearing plates which are integrally formed;

the pressure bearing plate is fixedly connected with the inner wall of the halogen-free low-smoke outer layer, and the connecting plate is fixedly connected with the outer wall of the armor sleeve.

Preferably, the bearing plate and the connecting plate are both arc-shaped.

Preferably, it is the steamed low cigarette packing cover of annular equipartition to go back fixedly connected with a plurality of on the outer inner wall of steamed low cigarette, the through-hole has been seted up to the inside of steamed low cigarette packing cover, fixedly connected with spring between bearing plate and the connecting plate, the spring is located correspondingly the inside of through-hole.

Preferably, a plurality of hollow cavities are formed between the halogen-free low-smoke filling sleeve and the armor sleeve, and a dry powder layer is filled inside the hollow cavities.

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

1. the utility model discloses a setting of armour cover, retaining cover isotructure, during the burning of conflagration, the outside of cable can be isolated flame by dry powder layer, and inside is kept the main part of inside down, if burning intensity leads to the armor to warp, also can leave reuse with the retaining cover of inside, and fire-resistant ability is strong.

2. The utility model discloses a setting of bearing plate, connecting plate, extension board isotructure, the cable bears main pressure through curved bearing plate and connecting plate after experiencing the extrusion, reduces internal damage, and the cable is difficult for the pressurized damage, and compressive property is superior.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is an enlarged view of the label A of the present invention;

FIG. 3 is a schematic view of a partial structure of the present invention;

fig. 4 is a schematic structural view of the retaining sleeve of the present invention when pulled out.

In the figure: 1. a halogen-free low-smoke outer layer; 2. sheathing; 3. reserving a sleeve; 4. a conductor; 41. an inner guide core; 42. an outer guide core; 5. a dry powder layer; 6. a halogen-free low-smoke filling sleeve; 7. a reinforcing block; 8. a pressure bearing plate; 9. a through hole; 10. a spring; 11. a support plate; 12. a connecting plate.

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. 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.

Referring to fig. 1-4, an environment-friendly halogen-free low-smoke armored fire-resistant cable comprises a halogen-free low-smoke outer layer 1, an armored sleeve 2 and a conductor 4, wherein a plurality of support plates 11 uniformly distributed in an annular shape are fixedly arranged between the halogen-free low-smoke outer layer 1 and the armored sleeve 2, a sleeve hole is formed in the armored sleeve 2, and a retaining sleeve 3 is nested in the sleeve hole; conductor 4 includes core 41 and the outer core 42 of leading of a plurality of in a plurality of, core 41 sets up in the inside that remains cover 3 in a plurality of, a plurality of outer core 42 of leading is annular evenly distributed in the inside of armor 2, through armor cover 2, the setting of retaining cover 3 isotructure, when the burning of conflagration, the outside of cable can be isolated with flame by dry powder layer 5, inside main part with inside is kept down, if combustion strength leads to the armor to warp, also can leave reuse with inside retaining cover 3, fire resistance is strong.

Referring to fig. 2, a reinforcing block 7 and a connecting plate 12 of an integrally formed structure are respectively disposed at two ends of the support plate 11, and pressure-bearing plates 8 of an integrally formed structure are disposed at two sides of the reinforcing block 7; bearing plate 8 with there is not steamed outer 1 inner wall fixed connection of low cigarette, connecting plate 12 with armor cover 2's outer wall fixed connection, through the setting of bearing plate 8, connecting plate 12, extension board 11 isotructure, the cable bears the main pressure through curved bearing plate 8 and connecting plate 12 after experiencing the extrusion, reduces internal damage, and the difficult pressurized damage of cable, compressive property are superior.

Referring to fig. 2, the pressure bearing plate 8 and the connecting plate 12 are both arc-shaped.

Referring to fig. 3, the inner wall of the outer halogen-free low-smoke layer 1 is further fixedly connected with a plurality of halogen-free low-smoke packing sleeves 6 which are uniformly distributed annularly, through holes 9 are formed inside the halogen-free low-smoke packing sleeves 6, springs 10 are fixedly connected between the bearing plates 8 and the connecting plates 12, and the springs 10 are located inside the corresponding through holes 9.

Referring to fig. 4, a plurality of hollow cavities are formed between the halogen-free low-smoke filling sleeve 6 and the armor sleeve 2, and the dry powder layer 5 is filled inside the hollow cavities.

The utility model discloses specific implementation process as follows: when the cable is manufactured, an armor sleeve 2 of a main body is connected with an external halogen-free low-smoke outer layer 1 through a supporting rod, a connecting plate 12 and a pressure bearing plate 8, then a group of halogen-free low-smoke filling sleeves 6 are additionally arranged on the inner wall of the halogen-free low-smoke outer layer 1, dry powder is injected between the armor sleeve 2 and the halogen-free low-smoke filling sleeves 6, and a conductor 4 is divided into an inner guide core 41 and an outer guide core 42 which are arranged on the armor sleeve 2 and reserved;

furthermore, when a fire disaster occurs, the outer halogen-free low-smoke outer layer 1 can generate a small amount of smoke when being burnt, the damage of the inner armor sleeve 2 and the retaining sleeve 3 can be effectively avoided due to the isolation of the dry powder layer 5, and if the burning time is too long, the inner armor sleeve 2 deforms, and the retaining sleeve 3 with the inner guide core 41 arranged inside can be partially drawn out for reuse;

in addition, when the cable is pressed, the pressure applied to the middle pressure bearing plate 8 and the connecting plate 12 is dispersed, and the pressure applied to the middle pressure bearing plate and the connecting plate can be relieved through the spring 10, so that damage is reduced, and the cable is protected to the greatest extent;

it should be noted that the materials of the halogen-free low-smoke outer layer 1, the halogen-free low-smoke filling sleeve 6, the armor sleeve 2 and the retaining sleeve 3 are all made of the existing halogen-free low-smoke material, and are not described herein again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a there is not steamed low cigarette armor fire resisting cable of environmental protection, includes that there is not steamed low cigarette skin (1), armor (2) and conductor (4), its characterized in that: a plurality of support plates (11) which are uniformly distributed in a ring shape are fixedly arranged between the halogen-free low-smoke outer layer (1) and the armor sleeve (2), a sleeve hole is formed in the armor sleeve (2), and a retaining sleeve (3) is nested in the sleeve hole;

the conductor (4) comprises a plurality of inner guide cores (41) and a plurality of outer guide cores (42), the inner guide cores (41) are arranged inside the retaining sleeve (3), and the outer guide cores (42) are uniformly distributed in the armor sleeve (2) in an annular mode.

2. The environment-friendly halogen-free low-smoke armored fire-resistant cable according to claim 1, characterized in that: a reinforcing block (7) and a connecting plate (12) which are integrally formed are respectively arranged at two ends of the support plate (11), and bearing plates (8) which are integrally formed are respectively arranged at two sides of the reinforcing block (7);

the pressure bearing plate (8) is fixedly connected with the inner wall of the halogen-free low-smoke outer layer (1), and the connecting plate (12) is fixedly connected with the outer wall of the armor sleeve (2).

3. The environment-friendly halogen-free low-smoke armored fire-resistant cable according to claim 2, characterized in that: the pressure bearing plate (8) and the connecting plate (12) are both arc-shaped.

4. The environment-friendly halogen-free low-smoke armored fire-resistant cable according to claim 2, characterized in that: it is the low cigarette packing cover of no halogen that annular equipartition is gone up to a plurality of fixedly connected with still on the inner wall of low cigarette outer (1) of no halogen, through-hole (9) have been seted up to the inside of low cigarette packing cover of no halogen (6), fixedly connected with spring (10) between bearing plate (8) and connecting plate (12), spring (10) are located correspondingly the inside of through-hole (9).

5. The environment-friendly halogen-free low-smoke armored fire-resistant cable according to claim 4, characterized in that: a plurality of hollow cavities are formed between the halogen-free low-smoke filling sleeve (6) and the armor sleeve (2), and a dry powder layer (5) is filled inside the hollow cavities.