CN216957492U - Novel RVV flexible cable - Google Patents

Abstract

The utility model discloses a novel RVV flexible cable, which comprises a plurality of RVV line bodies and a pseudo elastomer, wherein the plurality of RVV line bodies are uniformly distributed on the outer side of the pseudo elastomer in an annular manner around the pseudo elastomer, a sheath layer is arranged on the outer side of the RVV line bodies, and a filling layer is arranged in the sheath layer; every gang RVV line body all includes the conductor and sets up in the first heat-resistant layer in the conductor outside the outside of first heat-resistant layer is equipped with the second heat-resistant layer the outside of second heat-resistant layer is equipped with the insulating layer. By adopting the RVV flexible cable, the flexibility and resilience of the cable are increased while the tensile force borne by the cable is enhanced, the high-temperature resistance of the cable is also increased, the stability is strong, the flexibility is good, the cable is prevented from being damaged in the using process, the service life of the cable is prolonged, and the RVV flexible cable has the advantages of simple structure, stable performance, long service life, convenience in laying and strong practicability, and is beneficial to popularization and application of products.

Description

Novel RVV flexible cable

Technical Field

The utility model relates to the technical field of power cables, in particular to a novel RVV flexible cable.

Background

The RVV cable is a kind of sheathed wire, which is called copper core polyvinyl chloride insulation polyvinyl chloride sheathed flexible cable, also called light polyvinyl chloride insulation polymer, commonly called flexible sheathed wire. The RVV cable is the most common cable of a weak current system, is mainly applied to power lines, control lines and signal transmission lines for electric appliances, instruments, electronic equipment and automation devices, and can be particularly used for an anti-theft alarm system, a building intercom system and the like. At present, the existing RVV cable in the market is that a layer of sheath is added on two or more RV lines, and the tensile force born in the use process is born by the whole cable, so that the damage degree to the cable is very large, the phenomena of deformation and distortion are easy to occur, and even the cable is broken due to overlarge tensile force in the use process, so that the service life of the RVV cable is shortened, and the practicability of the RVV electric wire cable is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem in the background art and provides a RVV flexible cable which is simple in structure, stable in performance, long in service life and convenient to popularize and apply, in particular to a novel RVV flexible cable.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a novel RVV flexible cable comprises a plurality of RVV wire bodies and a pseudo-elastomer, wherein the plurality of RVV wire bodies are uniformly distributed on the outer side of the pseudo-elastomer in an annular manner around the pseudo-elastomer, a sheath layer is arranged on the outer side of the RVV wire bodies, and a filling layer is arranged in the sheath layer; each RVV line body comprises a conductor and a first heat-resistant layer arranged on the outer side of the conductor, a second heat-resistant layer is arranged on the outer side of the first heat-resistant layer, and an insulating layer is arranged on the outer side of the second heat-resistant layer.

Furthermore, the novel RVV flexible cable is characterized in that the RVV cable body is provided with three strands, and the three strands of RVV cable bodies are annularly and uniformly distributed in the sheath layer (4).

Furthermore, the novel RVV flexible cable is characterized in that conductors in the RVV wire body are copper core flexible conductors, the first heat-resistant layer is a fire-resistant mica tape wound in a positive and negative direction, the second heat-resistant layer is a ceramic silica gel tape wound in a positive and negative direction, the winding overlapping rate of the fire-resistant mica tape and the ceramic silica gel tape is not lower than 50%, and the insulating layer is formed by extruding polyvinyl chloride elastomer insulating materials of JT-105 type.

Furthermore, the novel RVV flexible cable is characterized in that the pseudo-elastomer is formed by hinging bulletproof filaments, the filling layer is filled in a gap between the RVV cable body and the pseudo-elastomer by adopting an asbestos powder material, and the sheath layer is formed by extruding and wrapping a polyvinyl chloride elastomer sheath material with the model of HT-105.

By adopting the novel RVV flexible cable, the structure of the existing RVV flexible cable is improved and optimized, a pseudo elastomer is added during cabling, the pseudo elastomer is formed by hinging of anti-elastic yarns, and the anti-elastic yarns are mainly made of polyaryl fibers, so that the novel RVV flexible cable is high in tensile strength, good in heat resistance, excellent in advantages of wear resistance, cutting resistance, acid resistance, impact resistance, flame resistance and the like, and can enhance the tensile resistance of a lead; in addition, the insulating layer and the sheath layer are made of PVC elastomer cable materials, the insulating layer is formed by extruding and wrapping a PVC elastomer insulating material with the model of JT-105, the sheath layer is formed by extruding and wrapping a PVC elastomer sheath material with the model of HT-105, and the flexibility and resilience of the cable can be increased while the tensile force borne by the cable is enhanced by a double-layer wrapping mode, so that the aging of the RVV wire body 1 is effectively reduced, and the service life of the RVV wire body is prolonged; in addition, two heat-resistant layers are arranged between the conductor and the insulating layer, wherein the first heat-resistant layer is a positive and negative wrapped fire-resistant mica tape, the second heat-resistant layer is a positive and negative wrapped ceramic silica gel tape, and the high-temperature resistance of the cable can be effectively improved through the arranged fire-resistant mica tape and the ceramic silica gel tape.

Therefore, the RVV flexible cable provided by the utility model not only increases the flexibility and resilience of the cable, but also increases the high-temperature resistance of the cable while enhancing the tensile force borne by the cable, has strong stability and good flexibility, avoids the cable from being damaged in the use process, prolongs the service life of the cable, and has the advantages of simple structure, stable performance, long service life, convenience in laying and strong practicability, and is beneficial to product popularization and application.

Drawings

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

Fig. 1 is a schematic structural view of the present invention.

Shown in the figure: 1-RVV line body, 11-conductor, 12-first heat-resistant layer, 13-second heat-resistant layer, 14-insulating layer, 2-false elastomer, 3-filling layer and 4-sheath layer.

Detailed Description

As shown in fig. 1, the novel RVV flexible cable according to the present invention comprises a plurality of RVV wire bodies 1 and a pseudo-elastic body 2, wherein the RVV wire bodies 1 are uniformly distributed around the pseudo-elastic body 2 in an annular shape outside the pseudo-elastic body 2, a sheath layer 4 is disposed outside the RVV wire body 1, and a filling layer 3 is disposed inside the sheath layer 4; each RVV wire body 1 includes a conductor 11 and a first heat-resistant layer 12 disposed outside the conductor 11, a second heat-resistant layer 13 is disposed outside the first heat-resistant layer 12, and an insulating layer 14 is disposed outside the second heat-resistant layer 13.

Further, the novel RVV flexible cable is characterized in that the RVV cable body 1 is provided with three strands, and the three strands of RVV cable bodies 1 are annularly and uniformly distributed in the sheath layer 4; the RVV wire comprises a RVV wire body 1, a conductor 11, a first heat-resistant layer 12, a second heat-resistant layer 13 and an insulating layer 14, wherein the conductor 11 in the RVV wire body 1 is a copper core soft conductor, the first heat-resistant layer is a fire-resistant mica tape wound forward and backward, the second heat-resistant layer is a ceramic silica gel tape wound forward and backward, the winding overlapping rate of the fire-resistant mica tape and the ceramic silica gel tape is not lower than 50%, and the insulating layer 14 is formed by extruding and wrapping a polyvinyl chloride elastomer insulating material of JT-105 type.

Furthermore, the novel RVV flexible cable is characterized in that the pseudo-elastic body 2 is formed by hinging bulletproof filaments, the filling layer 3 is filled in a gap between the RVV wire body 1 and the pseudo-elastic body 2 by adopting an asbestos powder material, and the sheath layer 4 is formed by extruding a polyvinyl chloride elastic body sheath material with the type of HT-105.

By adopting the novel RVV flexible cable, the structure of the existing RVV flexible cable is improved and optimized, a pseudo-elastomer 2 is added during cabling, the pseudo-elastomer 2 is formed by hinging of anti-elastic yarns, and the anti-elastic yarns are mainly made of polyaryl fibers, so that the novel RVV flexible cable is high in tensile strength, good in heat resistance, excellent in advantages of wear resistance, cutting resistance, acid resistance, impact resistance, flame resistance and the like, and can enhance the tensile resistance of a lead; in addition, the insulating layer 14 and the sheath layer 4 are both made of a PVC elastomer cable material, which is a granular material prepared by mixing and granulating a polyvinyl chloride resin and a modified polymer material as base materials with additives such as a plasticizer, a filler (a flame retardant), a stabilizer, a lubricant and the like. The PVC elastomer cable material is a granular material prepared by mixing and granulating polyvinyl chloride resin and a modified high polymer material which are taken as base materials and added with auxiliary agents such as a plasticizer, a filling agent (a flame retardant), a stabilizer, a lubricant and the like. The insulating layer 14 is formed by extruding and wrapping a polyvinyl chloride elastomer insulating material with the model of JT-105, the sheath layer 4 is formed by extruding and wrapping a polyvinyl chloride elastomer sheath material with the model of HT-105, the polyvinyl chloride elastomer insulating material with the model of JT-105 and the polyvinyl chloride elastomer sheath material with the model of HT-105 are adopted, the high temperature resistance of 105 ℃ can be achieved, the flexibility and the resilience of the cable can be increased while the tensile force of the cable is enhanced through a double-layer wrapping mode, and the aging of the RVV line body is effectively reduced, so that the service life of the RVV line body is prolonged; in addition, two heat-resistant layers are arranged between the conductor 11 and the insulating layer 14, wherein the first heat-resistant layer 12 is a positive and negative wrapped fire-resistant mica tape, the second heat-resistant layer 13 is a positive and negative wrapped ceramic silica gel tape, and the high-temperature resistance of the cable can be effectively improved through the arranged fire-resistant mica tape and the ceramic silica gel tape.

In conclusion, the RVV flexible cable provided by the utility model not only increases the flexibility and resilience of the cable, but also increases the high-temperature resistance of the cable while enhancing the tensile force borne by the cable, has strong stability and good flexibility, avoids the cable from being damaged in the use process, prolongs the service life of the cable, and has the advantages of simple structure, stable performance, long service life, convenience in laying and strong practicability, and is beneficial to product popularization and application.

The protection scope of the present invention is not limited to the technical solutions disclosed in the specific embodiments, the above description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, and any minor modifications, equivalent substitutions and improvements made according to the technical solutions of the present invention should be included in the protection scope of the technical solutions of the present invention.

Claims (4)

1. A novel RVV flexible cable is characterized in that: the artificial rubber gauge comprises a plurality of RVV line bodies (1) and a pseudo-elastomer (2), wherein the plurality of RVV line bodies (1) are uniformly distributed on the outer side of the pseudo-elastomer (2) in an annular manner around the pseudo-elastomer (2), a sheath layer (4) is arranged on the outer side of the RVV line body (1), and a filling layer (3) is arranged in the sheath layer (4); each RVV wire body (1) comprises a conductor (11) and a first heat-resistant layer (12) arranged on the outer side of the conductor (11), a second heat-resistant layer (13) is arranged on the outer side of the first heat-resistant layer (12), and an insulating layer (14) is arranged on the outer side of the second heat-resistant layer (13).

2. The novel RVV flexible cable as claimed in claim 1, wherein: the RVV cable body (1) is provided with three strands, and the three strands of RVV cable bodies (1) are uniformly distributed in the sheath layer (4) in an annular mode.

3. The novel RVV flexible cable as claimed in claim 1, wherein: conductor (11) in RVV line body (1) are the soft conductor of copper core, first heat-resistant layer (12) are the fire-resistant mica tape of positive and negative package, and second heat-resistant layer (13) are the ceramic silica gel area of positive and negative package, the package overlap ratio of wrapping of fire-resistant mica tape and ceramic silica gel area is not less than 50%, insulating layer (14) adopt the type to be the crowded package of polyvinyl chloride elastomer insulating material of JT-105 to form.

4. The novel RVV flexible cable as claimed in claim 1, wherein: the artificial elastic body (2) is formed by hinging bulletproof wires, the filling layer (3) is filled in a gap between the RVV wire body (1) and the artificial elastic body (2) by adopting an asbestos powder material, and the sheath layer (4) is formed by extruding and wrapping a polyvinyl chloride elastic body sheath material with the model of HT-105.

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