CN212541982U

CN212541982U - Heat-resistant flame-retardant environment-friendly polyvinyl chloride insulated cable

Info

Publication number: CN212541982U
Application number: CN202021528836.6U
Authority: CN
Inventors: 王桂琴; 李兴霞; 陈义军; 费尤战
Original assignee: JIANGSU JIANGYANG CABLE CO Ltd
Current assignee: JIANGSU JIANGYANG CABLE CO Ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-02-12
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a fire-retardant environmental protection polyvinyl chloride insulated cable of heat-resistant type relates to insulated cable technical field, including the inner core, the outside fixedly connected with inner core insulating layer of inner core insulating layer, the outside of inner core insulating layer is equipped with outer core, the outer core insulating layer of the outside fixedly connected with of outer core insulating layer. This fire-retardant environmental protection polyvinyl chloride insulated cable of heat-resistant type, when the external world applys pressure to the cable, at first outer elastic ball can weaken external pressure, let and conduct the inside pressure of cable and reduce, inside inner elastic ball through the cable afterwards, interior elastic layer, outer elastic layer and elastic filler let the inner core and the outer core of cable not extruded, solved and received the easy by extrusion deformation of inside cable core when external extrusion, probably have the problem that causes the harm to the cable core.

Description

Heat-resistant flame-retardant environment-friendly polyvinyl chloride insulated cable

Technical Field

The utility model relates to an insulated cable technical field specifically is a fire-retardant environmental protection polyvinyl chloride insulated cable of heat-resistant type.

Background

At present, domestic power supply cables are used more and more, the cables are electrically connected and signal transmission is carried out between devices, assemblies and assemblies, and systems, the cables are necessary basic elements for forming a complete system, resin, plastics, pvc materials, silicon rubber and the like can be used as non-conductive materials of electric wires at present, the materials are made into insulating layers of the electric wires, electric conductors can be prevented from contacting with the outside, and therefore the situations of electric leakage, short circuit and the like of the electric wires are avoided.

In chinese utility model patent application no: CN201922090685.4 discloses a wear-resisting aerial insulated cable of environmental protection tensile and four-core structure aerial insulated cable, including a plurality of single core cables, single core cable contains the aluminum alloy conductor, and overlaps the bundle yarn layer that blocks water, the band layer that blocks water, tensile silk layer, heat preservation and the insulating layer of crowded package on the aluminum alloy conductor from inside to outside in proper order. This wear-resisting aerial insulated cable of environmental protection tensile and four-core structure, inside cable core is easily by extrusion deformation when receiving external extrusion, probably has the problem that causes the harm to the cable core, and has that heat resistance performance nature is not good, causes the problem of harm to the cable easily when being heated.

Therefore, it is necessary to provide a heat-resistant flame-retardant environment-friendly polyvinyl chloride insulated cable to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide a fire-retardant environmental protection polyvinyl chloride insulated cable of heat-resistant type to solve the current cable that proposes in the above-mentioned background art when receiving external extrusion the inside cable core is easily by extrusion deformation, probably has the problem that causes the harm to the cable core, and has that heat resistance performance nature is not good, causes the problem of harm to the cable easily when being heated.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a heat-resistant flame-retardant environment-friendly polyvinyl chloride insulated cable comprises an inner core, wherein an inner core insulating layer is fixedly connected to the outer side of the inner core, an inner core heat-insulating layer is fixedly connected to the outer side of the inner core insulating layer, an outer core is arranged on the outer side of the inner core heat-insulating layer, an outer core insulating layer is fixedly connected to the outer side of the outer core insulating layer, an inner fixing layer is arranged on the outer side of the outer core heat-insulating layer, an internal filling agent is arranged inside the inner fixing layer, an inner elastic layer is arranged on the outer side of the inner fixing layer, an inner elastic ball is arranged on the outer side of the inner elastic layer, an outer elastic layer is arranged on the outer side of the inner elastic ball, an elastic filling agent is arranged between the outer side of the inner elastic layer and the inner side of the outer elastic layer, an outer fixing layer is fixedly connected to the outer side of, the outer side of outer protection core is equipped with insulating cover, be equipped with protection core filler between insulating cover and the outer protection core, insulating cover's the outside is equipped with outer elastic ball, outer elastic ball's the outside is equipped with the polyvinyl chloride insulating layer, the inboard of polyvinyl chloride insulating layer is equipped with the resin filling layer, the outside fixedly connected with outer insulating layer of polyvinyl chloride insulating layer, the outer fire-retardant layer of outside fixedly connected with of outer insulating layer, the outside fixedly connected with outer protective layer of outer fire-retardant layer.

Preferably, the cross section of the inner core is circular, six outer cores are arranged on the outer side of the inner core uniformly.

Preferably, thirty-two inner elastic balls are arranged on the outer side of the inner elastic layer.

Preferably, the inner core insulating layer and the outer core insulating layer are both made of plastics, and the inner core heat-insulating layer and the outer core heat-insulating layer are both made of asbestos.

Preferably, the outer protective core is made of a metal material, and the outer protective core is uniformly arranged outside the outer fixing layer.

Preferably, the outer elastic balls and the inner elastic balls are identical in size and shape, and the outer elastic balls are uniformly arranged on the outer side of the protective insulating layer.

Preferably, the outer protective layer is made of a rubber material, and the outer flame retardant layer is made of a flame retardant plastic.

Preferably, the number of the outer elastic balls is greater than the number of the inner elastic balls, and the cross-sectional area of the outer protective core is greater than the cross-sectional areas of the outer elastic balls and the inner elastic balls.

(III) advantageous effects

Compared with the prior art, the utility model provides a fire-retardant environmental protection polyvinyl chloride insulated cable of heat-resistant type possesses following beneficial effect:

1. this fire-retardant environmental protection polyvinyl chloride insulated cable of heat-resistant type, when the external world applys pressure to the cable, at first outer elastic ball can weaken external pressure, let and conduct the inside pressure of cable and reduce, inside inner elastic ball through the cable afterwards, interior elastic layer, outer elastic layer and elastic filler let the inner core and the outer core of cable not extruded, solved and received the easy by extrusion deformation of inside cable core when external extrusion, probably have the problem that causes the harm to the cable core.

2. This fire-retardant environmental protection polyvinyl chloride insulated cable of heat-resistant type, through setting up outer insulating layer to the cable, let the inside cable core of cable and external world have had certain wall effect, and increase the inner core insulating layer and increase outer core insulating layer to the outside of outer core through the inner core outside, let the cable core avoid ambient temperature's influence, it is not good to have solved to have heat resistance, causes the problem of harm to the cable when being heated easily.

3. This fire-retardant environmental protection polyvinyl chloride insulated cable of heat-resistant type through increasing outer protection core to the cable inside, lets the intensity of cable increase, makes the life of cable increase, and the outside of cable core all is equipped with the insulating layer, lets the cable have fine insulating nature, uses safelyr.

Drawings

FIG. 1 is a schematic view of the inner core and outer core structure of the present invention;

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

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is an enlarged schematic view of the structure at B in fig. 2 according to the present invention.

In the figure: 1. an outer flame retardant layer; 2. an outer insulating layer; 3. a polyvinyl chloride insulating layer; 4. an internal filler; 5. an inner fixed layer; 6. an inner core; 7. an outer core; 8. an outer resilient ball; 9. a resin filling layer; 10. an outer core insulating layer; 11. an outer core insulation layer; 12. an inner core insulating layer; 13. an inner core thermal insulation layer; 14. a protective insulating layer; 15. an outer protective core; 16. a protective core filler; 17. an outer protective layer; 18. an inner elastic layer; 19. an elastomeric filler; 20. an inner elastic ball; 21. an outer elastic layer; 22. an outer fixing layer.

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.

Referring to fig. 1-4, a heat-resistant flame-retardant environment-friendly polyvinyl chloride insulated cable comprises an inner core 6, an inner core insulating layer 12 fixedly connected to the outer side of the inner core 6, an inner core insulating layer 13 fixedly connected to the outer side of the inner core insulating layer 12, an outer core 7 arranged on the outer side of the inner core insulating layer 13, the inner core 6 having a circular cross section, six outer cores 7 uniformly arranged on the outer side of the inner core 6, an outer core insulating layer 10 fixedly connected to the outer side of the outer core 7, an outer core insulating layer 11 fixedly connected to the outer side of the outer core insulating layer 10, the inner core insulating layer 12 and the outer core insulating layer 10 both made of plastic, the inner core insulating layer 13 and the outer core insulating layer 11 both made of asbestos, an inner fixing layer 5 arranged on the outer side of the outer core insulating layer 11, an inner filler 4 arranged inside the inner fixing layer 5, an inner elastic layer 18 arranged on the outer side of the inner fixing, the inner elastic ball 20 can protect the inner core 6 and the outer core 7 after being subjected to external pressure, the inner elastic ball 20 has thirty-two, the thirty-two inner elastic balls 20 are uniformly arranged on the outer side of the inner elastic layer 18, the outer elastic layer 21 is arranged on the outer side of the inner elastic ball 20, an elastic filler 19 is arranged between the outer side of the inner elastic layer 18 and the inner side of the outer elastic layer 21, the outer fixing layer 22 is fixedly connected to the outer side of the outer elastic layer 21, the outer protection core 15 is arranged on the outer side of the outer fixing layer 22, the outer protection core 15 is made of metal materials, the outer protection core 15 is uniformly arranged on the outer side of the outer fixing layer 22, the strength of the cable is increased by adding the outer protection core 15 to the inner part of the cable, the service life of the cable is prolonged, the outer side of the cable core is provided with an insulating layer, the cable has good insulating property and is safer to use, the outer side of the outer protection, a protective core filler 16 is arranged between the protective insulating layer 14 and the outer protective core 15, an outer elastic ball 8 is arranged on the outer side of the protective insulating layer 14, the outer elastic ball 8 can relieve external pressure, the number of the outer elastic balls 8 is larger than that of the inner elastic balls 20, the cross-sectional area of the outer protective core 15 is larger than that of the outer elastic balls 8 and that of the inner elastic balls 20, the outer elastic balls 8 and the inner elastic balls 20 are the same in size and shape, the outer elastic balls 8 are uniformly arranged on the outer side of the protective insulating layer 14, when the external force is applied to the cable, firstly, the outer elastic balls 8 weaken the external pressure to reduce the pressure transmitted to the inside of the cable, then, the inner core 6 and the outer core 7 of the cable are not extruded through the inner elastic balls 20, the inner elastic layer 18, the outer elastic layer 21 and the elastic filler 19 inside the cable, and the problem that the inner cable core is easily extruded and deformed when being extruded, probably have the problem that causes the harm to the cable core, the outside of outer elastic ball 8 is equipped with polyvinyl chloride insulating layer 3, polyvinyl chloride insulating layer 3's inboard is equipped with resin filling layer 9, polyvinyl chloride insulating layer 3's the outer insulating layer of outside fixedly connected with 2, through setting up outer insulating layer 2 to the cable, let the inside cable core of cable and external world have certain wall effect, and increase inner core insulating layer 13 and increase outer core insulating layer 11 to the outside of outer core 7 through the inner core 6 outside, let the cable core avoid the influence of ambient temperature, it is not good to have the heat resistance, easily cause the problem of harm to the cable when being heated, outer insulating layer 2's the outer fire-retardant layer 1 of outside fixedly connected with, outer protective layer 17 of outside fixedly connected with on outer fire-retardant layer 1, outer protective layer 17 is made by rubber materials, outer fire-retardant layer 1 is made by fire-retardant plastics.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

The working principle is as follows: when the cable is subjected to external pressure, the external elastic ball 8 firstly weakens the external pressure, so that the pressure transmitted to the interior of the cable is reduced, and then the inner core 6 and the outer core 7 of the cable are not extruded through the inner elastic ball 20, the inner elastic layer 18, the outer elastic layer 21 and the elastic filling agent 19 in the interior of the cable, when the outside temperature is too high, the cable core in the cable has certain separation effect with the outside by arranging the outer heat insulation layer 2 on the cable, and the cable core is prevented from being influenced by the outside temperature by adding the inner core heat insulation layer 13 on the outer side of the inner core 6 and adding the outer core heat insulation layer 11 on the outer side of the outer core 7, and the cable increases the strength of the cable by adding the outer protection core 15 to the inside of the cable, so that the service life of the cable is prolonged, and the outside of cable core all is equipped with the insulating layer, lets the cable have fine insulating nature, uses safelyr.

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 fire-retardant environmental protection polyvinyl chloride insulated cable of heat-resistant type, includes inner core (6), its characterized in that: the outer side of the inner core (6) is fixedly connected with an inner core insulating layer (12), the outer side of the inner core insulating layer (12) is fixedly connected with an inner core insulating layer (13), the outer side of the inner core insulating layer (13) is provided with an outer core (7), the outer side of the outer core (7) is fixedly connected with an outer core insulating layer (10), the outer side of the outer core insulating layer (10) is fixedly connected with an outer core insulating layer (11), the outer side of the outer core insulating layer (11) is provided with an inner fixing layer (5), the inner fixing layer (5) is internally provided with an inner filling agent (4), the outer side of the inner fixing layer (5) is provided with an inner elastic layer (18), the outer side of the inner elastic layer (18) is provided with an inner elastic ball (20), the outer side of the inner elastic ball (20) is provided with an outer elastic layer (21), and an elastic filling agent (19) is arranged between the outer side of, the outer fixed bed (22) of outside fixedly connected with of outer elastic layer (21), the outside of outer fixed bed (22) is equipped with outer protection core (15), the outside of outer protection core (15) is equipped with insulating cover (14), be equipped with protection core filler (16) between insulating cover (14) and outer protection core (15), the outside of insulating cover (14) is equipped with outer elastic ball (8), the outside of outer elastic ball (8) is equipped with polyvinyl chloride insulating layer (3), the inboard of polyvinyl chloride insulating layer (3) is equipped with resin filling layer (9), outer insulating layer (2) of outside fixedly connected with of polyvinyl chloride insulating layer (3), outer fire-retardant layer (1) of outside fixedly connected with of outer insulating layer (2), outer protective layer (17) of outside fixedly connected with of outer fire-retardant layer (1).

2. The heat-resistant flame-retardant environment-friendly polyvinyl chloride insulated cable according to claim 1, characterized in that: the cross-section of inner core (6) is circular, outer core (7) have six, six outer core (7) even range is in the outside of inner core (6).

3. The heat-resistant flame-retardant environment-friendly polyvinyl chloride insulated cable according to claim 1, characterized in that: thirty-two inner elastic balls (20) are arranged, and thirty-two inner elastic balls (20) are uniformly arranged on the outer side of the inner elastic layer (18).

4. The heat-resistant flame-retardant environment-friendly polyvinyl chloride insulated cable according to claim 1, characterized in that: the inner core insulating layer (12) and the outer core insulating layer (10) are both made of plastics, and the inner core heat-insulating layer (13) and the outer core heat-insulating layer (11) are both made of asbestos.

5. The heat-resistant flame-retardant environment-friendly polyvinyl chloride insulated cable according to claim 1, characterized in that: the outer protection core (15) is made of a metal material, and the outer protection core (15) is uniformly arranged on the outer side of the outer fixing layer (22).

6. The heat-resistant flame-retardant environment-friendly polyvinyl chloride insulated cable according to claim 1, characterized in that: the outer elastic balls (8) and the inner elastic balls (20) are the same in size and shape, and the outer elastic balls (8) are uniformly arranged on the outer side of the protective insulating layer (14).

7. The heat-resistant flame-retardant environment-friendly polyvinyl chloride insulated cable according to claim 1, characterized in that: the outer protective layer (17) is made of a rubber material, and the outer flame-retardant layer (1) is made of flame-retardant plastic.

8. The heat-resistant flame-retardant environment-friendly polyvinyl chloride insulated cable according to claim 1, characterized in that: the number of the outer elastic balls (8) is larger than that of the inner elastic balls (20), and the cross-sectional area of the outer protective core (15) is larger than that of the outer elastic balls (8) and the inner elastic balls (20).