CN217955511U

CN217955511U - Flexible wire with polyvinyl chloride sheath

Info

Publication number: CN217955511U
Application number: CN202221995944.3U
Authority: CN
Inventors: 刘慈凯; 刘慈堃; 刘慈浩; 刘贤龙; 杨少丽; 陈介强; 陈浩瀚; 陈军灵; 苏红元
Original assignee: Guangdong Rihong Cable Co ltd
Current assignee: Guangdong Rihong Cable Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-12-02
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a polyvinyl chloride sheath flexible wire, including twisted pair sinle silk and outer protective layer, the outer protective layer includes filling layer, water blocking layer, fire-retardant layer and restrictive coating, the filling layer is wrapping up twisted pair sinle silk, the water blocking layer sets up in the filling layer periphery, fire-retardant layer sets up in the water blocking layer periphery, the restrictive coating sets up in the fire-retardant layer periphery, the restrictive coating surface is provided with anti-skidding net line; the twisted wire core is formed by twisting and winding two copper core wires; the utility model discloses a filling layer is used for protecting the twisted pair core, and the water-blocking layer formed by the longitudinal wrapping of the single-sided aluminum-plastic composite layer can prevent rainwater from invading into the cable; the flame-retardant layer formed by the olefin material can improve the flame resistance of the cable in fire, so that the cable is convenient for workers to cut off the power in time, and the machine is prevented from being damaged; meanwhile, the anti-pulling performance of the twisted-pair wire core can be enhanced, and the cable is not easy to tear in the using process.

Description

Flexible wire with polyvinyl chloride sheath

Technical Field

The utility model relates to a cable equipment technical field, concretely relates to polyvinyl chloride sheath patchcord.

Background

Electrical wire products for transmitting power, transferring information, and implementing electromagnetic energy conversion are called wire cables. The insulated wire is generally called an electric wire, which is a product only provided with a metal conductor and a conductor, wherein the insulated wire is coated with an insulating layer, a light protective layer and a light protective layer (such as a cotton yarn woven layer, a glass fiber woven layer, plastic, rubber and the like), has a simpler structure, a smaller outer diameter and smaller use voltage and current; the cable is a product which has a complicated structure and a large cross section and is provided with a conductor, an insulating layer, a tight inner protective layer for preventing moisture from entering or an outer protective layer with high mechanical strength.

Wire and cable products are used in different situations, so the performance requirements are multifaceted; for example, a cable without a protective layer is easy to be damaged in the using process, and safety accidents are easy to occur due to short circuit of the cable because of poor flame retardance and waterproof performance; secondly, the copper core wires in most double-core cables are wrapped by the direct outer protective layer without winding, so that the double-core cables are weak in anti-pulling performance and easy to damage.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a flexible cord with a polyvinyl chloride sheath.

In order to solve the technical problem, the technical scheme of the utility model is that: a polyvinyl chloride sheath flexible wire comprises a twisted pair wire core and an outer protection layer, wherein the outer protection layer comprises a filling layer, a water blocking layer, a flame retardant layer and a sheath layer, the filling layer wraps the twisted pair wire core, the water blocking layer is arranged on the periphery of the filling layer, the flame retardant layer is arranged on the periphery of the water blocking layer, the sheath layer is arranged on the periphery of the flame retardant layer, and anti-skidding grid lines are arranged on the outer surface of the sheath layer; the twisted wire core is formed by twisting and winding two copper core wires; the copper core includes soft tinned wire, semi-conducting layer, insulating layer and shielding layer, the semi-conducting layer sets up in soft tinned wire periphery, the insulating layer sets up in the semi-conducting layer periphery, the shielding layer sets up in the insulating layer periphery.

Preferably, the insulating layer is made of ethylene propylene rubber.

Preferably, the shielding layer is formed by weaving tinned copper wires.

Preferably, the sheath layer is a polyvinyl chloride sheath.

Preferably, the water-resistant layer is formed by longitudinally wrapping a single-side aluminum-plastic composite layer.

Preferably, the flame-retardant layer is made of an olefin material.

The utility model discloses technical effect mainly embodies: the utility model discloses a filling layer is used for protecting the twisted pair core, and the water-blocking layer formed by the longitudinal wrapping of the single-sided aluminum-plastic composite layer can prevent rainwater from invading into the cable; the flame-retardant layer formed by the olefin material can improve the flame resistance of the cable in fire, so that the cable is convenient for workers to cut off the power in time, and the machine is prevented from being damaged; meanwhile, the anti-pulling performance of the twisted-pair wire core can be enhanced, and the cable is not easy to tear in the using process.

Drawings

Fig. 1 is a structural diagram of a flexible cord of a polyvinyl chloride sheath of the present invention;

fig. 2 is a three-dimensional view of a polyvinyl chloride sheathed cord of fig. 1.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.

A polyvinyl chloride sheath flexible wire is shown in figures 1-2 and comprises a twisted pair wire core 1 and an outer protective layer 2, wherein the outer protective layer 2 comprises a filling layer 21, a water blocking layer 22, a flame retardant layer 23 and a sheath layer 24, the filling layer 21 wraps the twisted pair wire core 1, the water blocking layer 22 is arranged on the periphery of the filling layer 21, and particularly, the water blocking layer 22 can prevent the electric wire from being broken due to the fact that the electric wire is invaded by rainwater when the electric cable is installed outdoors. Fire-retardant layer 23 sets up in water-blocking layer 22 periphery, restrictive coating 24 sets up in fire-retardant layer 23 periphery, and is specific, fire-retardant layer 23 can improve the fire resistance of cable in the conflagration, makes things convenient for the staff in time to cut off the power supply, avoids the machine to receive the damage. The outer surface of the sheath layer 24 is provided with anti-skid gridding grains 241; specifically, the anti-skidding grid lines 241 can increase the cable holding power of workers, avoid the sliding of the cable in the installation process and bring inconvenience to the installation of the workers. The twisted wire core 1 is formed by twisting and winding two copper core wires 11; specifically, the twisted pair core 1 formed by twisting two copper core wires 11 can improve the anti-pulling performance of the wire. Copper core 11 includes soft tinned copper line 111, semi-conducting layer 112, insulating layer 113 and shielding layer 114, semi-conducting layer 112 sets up in soft tinned copper line 111 peripherally, insulating layer 113 sets up in semi-conducting layer 112 peripherally, shielding layer 114 sets up in insulating layer 113 peripherally, and is concrete, and the shielding layer 114 that the tinned copper wire was woven and is formed plays even electric field, adsorbs free impurity and to the shielding effect of external electric field.

The insulating layer 113 is made of ethylene propylene rubber. Specifically, the insulating layer 113 made of ethylene propylene rubber enhances the insulating property of the cable. The shielding layer 114 is braided by tinned copper wire. Specifically, the shielding layer 114 woven by tinned copper wires plays a role in homogenizing an electric field, adsorbing free impurities and shielding an external electric field.

The sheath layer 24 is made of polyvinyl chloride sheath. Specifically, the polyvinyl chloride sheath further enhances the corrosion resistance of the cable. The water-resistant layer 22 is formed by longitudinally wrapping a single-side aluminum-plastic composite layer, and the flame-retardant layer 23 is made of an olefin material.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. A polyvinyl chloride sheath flexible wire is characterized in that: the cable comprises a twisted pair cable core and an outer protection layer, wherein the outer protection layer comprises a filling layer, a water-blocking layer, a flame-retardant layer and a sheath layer, the filling layer wraps the twisted pair cable core, the water-blocking layer is arranged on the periphery of the filling layer, the flame-retardant layer is arranged on the periphery of the water-blocking layer, the sheath layer is arranged on the periphery of the flame-retardant layer, and anti-skid gridding grains are arranged on the outer surface of the sheath layer; the twisted wire core is formed by twisting and winding two copper core wires; the copper core includes soft tinned wire, semi-conducting layer, insulating layer and shielding layer, the semi-conducting layer sets up in soft tinned wire periphery, the insulating layer sets up in the semi-conducting layer periphery, the shielding layer sets up in the insulating layer periphery.

2. A polyvinyl chloride sheathed cord as claimed in claim 1, wherein: the insulating layer is made of ethylene propylene rubber.

3. A polyvinyl chloride sheathed cord as claimed in claim 1, wherein: the shielding layer is formed by weaving tinned copper wires.

4. A polyvinyl chloride sheathed cord as claimed in claim 1, wherein: the sheath layer is made of polyvinyl chloride materials.

5. A polyvinyl chloride sheathed cord as claimed in claim 1, wherein: the water-resistant layer is formed by longitudinally wrapping a single-side aluminum-plastic composite layer.

6. A polyvinyl chloride sheathed cord as claimed in claim 1, wherein: the flame-retardant layer is made of olefin materials.