CN211929129U

CN211929129U - Low-smoke halogen-free fire-resistant wire

Info

Publication number: CN211929129U
Application number: CN202021082686.0U
Authority: CN
Inventors: 卢英斌; 卢蛟; 黄伟; 叶银珠
Original assignee: Anhui Zhongtong Cable Technology Co ltd
Current assignee: Anhui Zhongtong Cable Technology Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2020-11-13
Anticipated expiration: 2030-06-12

Abstract

The utility model discloses a low smoke zero halogen fire-resistant wire, which belongs to the technical field of cables and comprises a shell, wherein a wire core is fixedly arranged at the center end inside the shell, an elastic ball is arranged at the periphery of the inner side of the shell and is four groups of elastic balls, the outer side wall of the shell is coated with a heat insulation coating, the outer side of the heat insulation coating is coated with a heat reflection heat insulation coating, the outer side of the heat reflection heat insulation coating is coated with a halogen-free expansion type flame retardant layer, the outer side of the halogen-free expansion type flame retardant layer is coated with a polyvinyl chloride layer, the elastic ball is made of rubber, the rubber is a high-elasticity polymer material with reversible deformation and has elasticity at room temperature, can generate larger deformation under the action of small external force, can recover the original shape after the external force is removed, the inner side wall, according to the elastic inertia of the elastic ball, the pressure can be effectively relieved, and the overall stability of the shell is ensured.

Description

Low-smoke halogen-free fire-resistant wire

Technical Field

The utility model relates to the technical field of cables, especially, relate to a low smoke and zero halogen fire-resistant wire.

Background

The cable is made of one or more conductors insulated from each other and an outer insulating protective layer, and is used for transmitting power or information from one place to another.

Patent No. CN206818474U discloses a fire-resistant high temperature resistance wire and cable, utilizes high temperature resistant material design to have the fire-resistant high temperature resistant structure of multilayer, has wholly improved the holistic fire-resistant high temperature resistance of wire and cable. The sheath layer material used in the invention has high strength, flame retardance and long service life, and prolongs the service life of the cable.

The wire of this patent also has the following disadvantages: 1. the fireproof hierarchical structure in the structural hierarchy is single, the fireproof performance is poor, and the overall performance of the electric wire and the cable is influenced; 2. the wire rod needs to bear a large amount of external pressure, the wire rod is deformed due to overlarge pressure, and the use quality and the effect are low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a low smoke and zero halogen fire-resistant wire aims at improving the refractiveness and the stability of wire.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of low smoke and zero halogen refractory conductor, which comprises a housin, the inboard central point fixed mounting of casing has the sinle silk, the inboard a week of casing is provided with the bouncing ball, and the bouncing ball is four groups, casing lateral wall cladding has thermal-insulated heat preservation coating, thermal-insulated heat preservation coating outside cladding has the thermal-insulated dope layer of heat reflection, the thermal-insulated dope layer outside cladding has the intumescent flame retardant layer of no halogen, there is the intumescent flame retardant layer outside cladding of no halogen on the polyvinyl chloride layer, the winding of the casing outside has the mica tape, mica tape outside fixed mounting has the polyolefin sheath.

Optionally, the outer side wall of the polyvinyl chloride layer is coated with a straw plate layer.

Optionally, the inner side wall of the straw board layer is provided with fiber bundles in a crossed manner, and the fiber bundles are metal fiber bundles.

Optionally, a spring is fixedly mounted on the inner side of the elastic ball.

The utility model has the advantages as follows:

1. the heat insulation coating is composed of silicate, is a closed mesh structure, can fully store warm air to achieve the effect of heat insulation, can reduce the heat conductivity coefficient through the heat insulation coating, prevents heat from conducting through a wire, realizes the integral heat insulation of the wire, is coated with a heat reflection heat insulation coating layer on the outer side wall, contains ultrafine ceramic bubbles, has higher reflectivity to sunlight, is tightly arranged to form a complete heat insulation layer after film forming, can greatly reduce the internal temperature of a coated object, saves energy by about 40 percent, can reflect the heat in the light of the environment, isolates the heat from transmitting the wire, isolates the heat radiation, does not contain halogen, can generate carbon foam during combustion, and plays the roles of heat insulation, oxygen insulation, smoke suppression and drip prevention, the mica tape is formed by wrapping a wrapping machine to form a mica tape wrapping package, is a high-performance mica insulating product, has excellent high-temperature resistance, combustion resistance and flame resistance, further improves the overall fire resistance, and solves the problems that the fire resistance hierarchical structure in the structural hierarchy is single, the fire resistance is poor and the overall performance of the electric wire and the cable is influenced.

2. The elastic ball is made of rubber which is a high-elasticity polymer material with reversible deformation, the elastic ball is rich in elasticity at room temperature, can generate larger deformation under the action of small external force, and can recover the original shape after the external force is removed, the inner side wall of the elastic ball is inlaid and connected with a spring, when the shell bears the external pressure, the spring performs compression motion, the pressure can be effectively relieved according to the self elastic inertia of the elastic ball, the integral stability of the shell is ensured, the polyolefin sheath refers to a polymer of olefin, and is a general name of thermoplastic resin obtained by singly polymerizing or copolymerizing ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 4-methyl-1-pentene and other alpha-olefins and certain cycloolefins, the thermoplastic resin has good anti-collision performance and strong self, and plays a role in protecting a lead, the whole safety is enhanced, and the problems that a large amount of external pressure needs to be borne, the wire is deformed due to overlarge pressure, and the use quality and the effect are low are solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an overall schematic view of a low smoke zero halogen fire-resistant wire according to an embodiment of the present invention;

FIG. 2 is a schematic view of a coating structure of a low-smoke halogen-free refractory wire according to an embodiment of the present invention;

FIG. 3 is a schematic view of a fiber bundle structure of a low smoke zero halogen fire resistant wire according to an embodiment of the present invention;

in the figure: 1. a housing; 2. a resilient ball; 3. a spring; 4. a wire core; 5. a heat insulating coating; 6. a heat reflective insulation coating layer; 7. a halogen-free intumescent flame retardant layer; 8. a polyvinyl chloride layer; 9. a straw board layer; 10. a fiber bundle; 11. mica tapes; 12. a polyolefin jacket.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, 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 efforts belong to the protection scope of the present invention.

A low smoke zero halogen fire-resistant wire according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1, fig. 2 and fig. 3, the embodiment of the utility model provides a low smoke and zero halogen refractory wire, including

casing

1, 1 inboard central point fixed mounting of casing has

sinle silk

4, 1 inboard a week of casing is provided with bounce ball 2, and bounce ball 2 is four groups, 1 lateral wall cladding of casing has thermal-insulated heat preservation coating 5, 5 outside cladding of thermal-insulated heat preservation coating have heat reflection

heat insulation coating

6, 6 outside cladding of thermal-insulated heat insulation coating has the intumescent fire-retardant layer 7 of no halogen, 7 outside cladding of the intumescent fire-retardant layer of no halogen have

polyvinyl chloride layer

8, 1 outside winding of casing has mica tape 11, 11 outside fixed mounting of mica tape has polyolefin sheath 12.

Illustratively, the elastic ball 2 is made of rubber, the rubber is a high-elasticity polymer material with reversible deformation, the elastic ball is rich in elasticity at room temperature, the elastic ball can generate large deformation under the action of small external force, the elastic ball can recover the original shape after the external force is removed, the spring 3 is embedded and connected on the inner side wall of the elastic ball 2, when the shell 1 bears the external pressure, the spring 3 performs compression movement, the pressure can be effectively relieved according to the self elastic inertia of the elastic ball 2, and the overall stability of the shell 1 is ensured.

Referring to fig. 2 and 3, the outer side wall of the polyvinyl chloride layer 8 is coated with a straw board layer 9.

The straw board has the characteristics of high strength, large product breadth, fire resistance, water resistance, environmental protection and low cost, and realizes resource recycling.

Referring to fig. 3, fiber bundles 10 are arranged on the inner side wall of the straw board layer 9 in a crossing manner, and the fiber bundles 10 are metal fiber bundles.

Illustratively, the overall strength of the straw board layer may be enhanced by the fiber bundles 10, thereby increasing the overall degree of compression resistance.

Referring to fig. 1, a spring 3 is fixedly mounted inside the elastic ball 2.

Illustratively, the spring 3 deforms itself to convert elastic potential energy into kinetic energy to counteract the external force on the shell 1.

When in use, the heat insulation coating 5 is composed of silicate and is a closed mesh structure, the structure can fully store warm air to achieve the effect of heat insulation, the heat conductivity coefficient can be reduced through the heat insulation coating to prevent heat from conducting through a lead, the integral heat insulation of the lead is realized, the outer side wall of the heat insulation coating 5 is coated with a heat reflection heat insulation coating layer 6, the heat reflection heat insulation coating layer 6 contains superfine ceramic bubbles, the coating has higher reflectivity to sunlight, the ceramic bubbles are closely arranged to form a complete heat insulation layer after film forming, the internal temperature of a coated object can be greatly reduced, the energy can be saved by about 40 percent, the heat in the light of the environment can be reflected, the heat transmission lead is isolated, the heat radiation is isolated, the halogen-free expansion type flame retardant layer 7 does not contain halogen, carbon foam can be generated during combustion, and the heat insulation, oxygen isolation and smoke suppression are realized, The anti-dripping elastic ball has the advantages that the anti-dripping elastic ball has excellent flame retardant property, the elastic ball 2 is made of rubber, the rubber is a high-elasticity polymer material with reversible deformation, the rubber is high in elasticity at room temperature, large deformation can be generated under the action of very small external force, the rubber can recover to the original shape after the external force is removed, the spring 3 is embedded and connected on the inner side wall of the elastic ball 2, when the shell 1 bears the external pressure, the spring 3 performs compression motion, the pressure can be effectively relieved according to the self elastic inertia of the elastic ball 2, and the overall stability of the shell 1 is ensured.

It should be noted that, the utility model relates to a low smoke and zero halogen fire-resistant wire, including casing 1, bounce ball 2, spring 3, sinle silk 4, thermal-insulated heat preservation coating 5, heat reflection heat insulation coating layer 6, there is not steamed intumescent flame retardant coating 7, polyvinyl chloride layer 8, straw sheet layer 9, tow 10, mica wire 11, polyolefin sheath 12, the part is general standard component or the part that technical staff in the field knows, and its structure and principle all can all be known or can be known through conventional experimental method for this technical staff through the technical manual.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a low smoke and zero halogen fire-resistant wire, includes casing (1), its characterized in that, casing (1) inboard central point fixed mounting has sinle silk (4), casing (1) inboard a week is provided with bouncing ball (2), and bouncing ball (2) are four groups, casing (1) lateral wall cladding has thermal-insulated heat preservation coating (5), thermal-insulated heat preservation coating (5) outside cladding has heat reflection heat insulation coating layer (6), heat reflection heat insulation coating layer (6) outside cladding has halogen-free intumescent flame retardant coating (7), there is polyvinyl chloride layer (8) halogen-free intumescent flame retardant coating (7) outside cladding, casing (1) outside winding has mica tape (11), mica tape (11) outside fixed mounting has polyolefin sheath (12).

2. The low-smoke zero-halogen fire-resistant wire according to claim 1, wherein the outer side wall of the polyvinyl chloride layer (8) is coated with a straw board layer (9).

3. The low smoke zero halogen fire-resistant wire of claim 2, characterized in that the fiber bundles (10) are arranged in the straw board layer (9) in a crossing manner, and the fiber bundles (10) are metal fiber bundles.

4. The low-smoke zero-halogen fire-resistant wire according to claim 1, characterized in that a spring (3) is fixedly mounted inside the elastic ball (2).