CN217544212U - Polyvinyl chloride insulated power line - Google Patents

Abstract

The utility model discloses a polyvinyl chloride insulated power cord, including the power cord main part, the power cord main part is by the wire, the internal insulation layer, the shielding layer, the filling layer, armor and outer insulating layer are constituteed, the internal insulation layer cladding is in the outer terminal surface of wire, the outer terminal surface of insulating layer including the shielding layer cladding, the filling layer is filled between shielding layer and armor, the outer terminal surface of outer insulating layer cladding at the armor, the outer end of armor is provided with the stretch-proofing ring, be provided with anti-cutting silk in the outer insulating layer, the outer terminal surface spraying of outer insulating layer has fire protection coating and anti-corrosion coating. The utility model discloses an add the armor structure that has stretch-proofing ring at the interior terminal surface of outer insulating layer, promoted the joint strength of outer insulating layer and armor greatly to promote the stretch-proofing ability of outer insulating layer, avoided lengthening the attenuation, promoted the security of power cord, and promoted the compressive capacity of power cord main part.

Description

Polyvinyl chloride insulated power line

Technical Field

The utility model relates to a power cord technical field specifically is a polyvinyl chloride insulated power cord.

Background

The power line is a wire that transmits current. The usual way of current transfer is point-to-point transfer. The power cord may be classified into an AC power cord and a DC power cord according to the purpose, and the AC power cord is generally a wire through which AC power having a relatively high voltage is passed.

An authorized bulletin number CN210325295U discloses a polyvinyl chloride insulated wire, which comprises a wire core, a first insulating layer, a shielding layer, a second insulating layer, an armor layer, a third insulating layer, a heat insulating layer, a fourth insulating layer and a protective layer, wherein the first insulating layer is fixed on the outer side wall of the wire core, and the shielding layer is fixed on the outer side wall of the first insulating layer.

Above-mentioned a polyvinyl chloride insulated wire, this power cord are when long-time high load uses, and the electric wire can produce a large amount of heats, leads to electric wire PVC shell to soften to the attenuation is elongated to the outer insulation layer after dragging, influences the power quality, thereby causes the potential safety hazard, consequently needs a polyvinyl chloride insulated wire to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a polyvinyl chloride insulated power cord to generate heat after solving among the prior art electric wire long-time use and seriously lead to the easy problem that influences the electric wire quality of deformation of insulating layer.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a polyvinyl chloride insulated power cord, includes the power cord main part, the power cord main part comprises wire, internal insulation layer, shielding layer, filling layer, armor and outer insulating layer, the internal insulation layer cladding is at the outer terminal surface of wire, the outer terminal surface of internal insulation layer is covered to the shielding layer cladding, the filling layer is filled between shielding layer and armor, the outer terminal surface of outer insulating layer cladding at the armor, the outer end of armor is provided with the stretch-proofing ring, be provided with the anti-cutting silk in the outer insulating layer, the outer terminal surface spraying of outer insulating layer has fire prevention coating and anti-corrosion coating.

Preferably, the armor is made of aluminum alloy, the thickness of the armor is one millimeter, the puncture resistance of the power line main body is improved through the armor, and the thickness is moderate, so that the power line main body has certain bending capability.

Preferably, the stretch-proofing ring is a plurality of ring-shaped aluminum alloy plates, the distance between the stretch-proofing rings is equal to the width of the stretch-proofing ring, a plurality of annular gullies are formed on the surface of the armor layer through the stretch-proofing rings, so that the connection strength between the outer insulating layer and the stretch-proofing rings is enhanced, the displacement between the outer insulating layer and the armor layer is avoided, the deformation probability of the outer insulating layer after the main body of the power line is overheated is reduced, the pressure resistance of the power line is improved, and the distance between the stretch-proofing rings is reserved to enable the power supply to be bent.

Preferably, the stretch-proofing ring is of a hollow structure, the hollow structure reduces production cost, meanwhile, the weight of the power line main body is reduced, and the carrying is convenient.

Preferably, the cutting-resistant wires are made of steel wires and are arrayed along the circumference of the outer end face of the stretch-resistant ring, the diameter of each cutting-resistant wire is one millimeter, and the cutting-resistant capability of the power line main body is enhanced through the cutting-resistant wires.

Preferably, the outer ends of the corrosion-resistant coating sprayed and the fireproof coating are used for avoiding the fireproof coating from losing effectiveness due to long-term contact friction between the fireproof coating and the external environment.

Preferably, the anti-corrosion coating is made of waterborne polyurethane, and the waterborne polyurethane has good corrosion resistance and weather resistance.

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

1. the utility model discloses an add the armor structure that has stretch-proofing ring at the interior terminal surface of outer insulating layer, promoted the joint strength of outer insulating layer and armor greatly to promote the stretch-proofing ability of outer insulating layer, avoided lengthening the attenuation, promoted the security of power cord, and promoted the compressive capacity of power cord main part.

2. The utility model discloses an add anti cutting wire in the outer insulating layer, promoted the anti cutting ability of power cord main part to the security of power cord main part has been promoted.

3. The utility model discloses an outer terminal surface spraying from the power cord main part has promoted the fire prevention and the resistance to corrosion of power cord main part by fire protection coating and anticorrosive coating to the life of power cord main part has been promoted.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 2 according to the present invention;

fig. 4 is a cross-sectional view B-B of fig. 2 according to the present invention;

fig. 5 is an enlarged view of the position C in fig. 4 according to the present invention.

In the figure: 1 power line body, 11 wires, 12 inner insulating layers, 13 shielding layers, 14 filling layers, 15 armor layers, 151 stretch-proofing rings, 16 outer insulating layers, 161 fireproof coatings, 162 corrosion-resistant coatings and 163 anti-cutting wires.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 5, the insulated polyvinyl chloride power cord shown in the figures includes a power cord main body 1, where the power cord main body 1 is composed of a wire 11, an inner insulating layer 12, a shielding layer 13, a filling layer 14, an armor layer 15 and an outer insulating layer 16, the inner insulating layer 12 covers an outer end surface of the wire 11, the shielding layer 13 covers an outer end surface of the inner insulating layer 12, the filling layer 14 is filled between the shielding layer 13 and the armor layer 15, the outer insulating layer 16 covers an outer end surface of the armor layer 15, an anti-stretching ring 151 is disposed at an outer end of the armor layer 15, a cutting-proof thread 163 is disposed in the outer insulating layer 16, and a fireproof coating 161 and an anti-corrosion coating 162 are sprayed on an outer end surface of the outer insulating layer 16.

Armor 15 adopts the aluminum alloy to make, and the thickness of armor 15 is a millimeter, through armor 15, promotes the anti puncture ability of power cord main part 1, and the moderate messenger of thickness it has certain ability of bending.

The stretch-resistant rings 151 are made of a plurality of annular aluminum alloy plates, the distance between every two adjacent stretch-resistant rings 151 is equal to the width of each stretch-resistant ring 151, and a plurality of annular ravines are formed on the surface of the armor layer 15 through the stretch-resistant rings 151, so that the connection strength between the outer insulating layer 16 and the stretch-resistant rings 151 is enhanced, the outer insulating layer 16 and the armor layer 15 are prevented from being displaced, the deformation probability of the outer insulating layer 16 after the power line body 1 is overheated is reduced, the pressure resistance of the power line is improved, and the distance between the stretch-resistant rings 151 is reserved to enable the power supply to be bent.

Stretch-proofing ring 151 is hollow structure, and hollow structure has reduced manufacturing cost, has reduced the weight of power cord main part 1 simultaneously, conveniently carries.

The cutting-preventing wires 163 are made of steel wires, the cutting-preventing wires 163 are arrayed along the circumference of the outer end face of the stretch-resistant ring 151, the diameter of the cutting-preventing wires 163 is one millimeter, and the cutting-resistant capability of the power line body 1 is enhanced through the cutting-preventing wires 163.

The corrosion-resistant coating 162 is sprayed on the outer end of the fire-retardant coating 161 to prevent the fire-retardant coating 161 from being damaged due to long-term contact and friction between the fire-retardant coating 161 and the external environment.

The corrosion-resistant coating 162 is made of waterborne polyurethane, and the waterborne polyurethane has good corrosion resistance and weather resistance.

When the power cord is used: when the power cord is overheated, because the outer end of armor 15 is provided with stretch-proofing ring 161, make zigzag engagement be connected between outer insulating layer 16 and the armor 15 to promote outer insulating layer 16's stretch-proofing ability, avoid its deformation, and stretch-proofing ring 151 promotes the structural strength of power cord main part 1, thereby has promoted its compressive capacity, is provided with in the outer insulating layer 16 and prevents cutting wire 163, can effectively avoid power cord main part 1 to be cut.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 (7)

1. A polyvinyl chloride insulated power cord comprising:

power cord main part (1), power cord main part (1) comprises wire (11), internal insulation layer (12), shielding layer (13), filling layer (14), armor (15) and outer insulating layer (16), internal insulation layer (12) cladding is at the outer terminal surface of wire (11), the outer terminal surface of internal insulation layer (12) is wrapped in shielding layer (13), fill between shielding layer (13) and armor (15) in filling layer (14), the outer terminal surface of armor (15) is wrapped in external insulation layer (16), the outer end of armor (15) is provided with stretch-proofing ring (151), be provided with in outer insulating layer (16) and prevent cutting silk (163), the outer terminal surface spraying of outer insulating layer (16) has fire protection coating (161) and anticorrosive coating (162).

2. The insulated power cord of polyvinyl chloride according to claim 1, wherein: the armor layer (15) is made of aluminum alloy, and the thickness of the armor layer (15) is one millimeter.

3. The insulated power cord of polyvinyl chloride according to claim 1, wherein: the stretch-proof rings (151) are a plurality of circular-ring-shaped aluminum alloy plates, and the distance between every two adjacent stretch-proof rings (151) is equal to the width of each stretch-proof ring (151).

4. The insulated power cord of polyvinyl chloride according to claim 3, wherein: the stretch-resistant ring (151) is of a hollow structure.

5. The insulated power cord of polyvinyl chloride according to claim 1, wherein: the anti-cutting wire (163) is made of steel wires, the anti-cutting wire (163) is arrayed along the circumference of the outer end face of the stretch-resistant ring (151), and the diameter of the anti-cutting wire (163) is one millimeter.

6. The insulated polyvinyl chloride power cord according to claim 1, wherein: the outer end of the corrosion resistant coating (162) is sprayed with a fire resistant coating (161).

7. The insulated power cord of polyvinyl chloride according to claim 1, wherein: the corrosion-resistant coating (162) is made of waterborne polyurethane.

Images