CN211266413U

CN211266413U - Modified polypropylene power cable protection tube

Info

Publication number: CN211266413U
Application number: CN201922282348.5U
Authority: CN
Inventors: 柳惠平
Original assignee: Suzhou Hubin Electric Power Equipment Manufacturing Co ltd
Current assignee: Suzhou Hubin Electric Power Equipment Manufacturing Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-08-14
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a modified polypropylene power cable protection tube, which comprises a pipe body, the internal surface of body is provided with the outer protective layer, the inside of outer protective layer is provided with the inner protective layer, the outer protective layer includes polypropylene layer, rubber protection layer and corrosion resistant layer. The utility model discloses an increase polypropylene layer and rubber protective layer in the inside of outer protective layer, can increase the holistic ageing resistance of body and corrosion resistance, and the rubber protective layer has elastic capacity, receive the extrusion rear surface at the body and can produce deformation rapidly, can recover fast after the atress disappears, be difficult for producing the deformation, can resist the corrosive power of soil and sewage simultaneously, make its surface can not produce corrosion, increase life, the erosion of burying underground receiving soil and sewage easily for a long time has been solved simultaneously and has been caused the whole corrosion of protection tube ageing easily, and compressive strength is not high, very easily produce the problem of deformation.

Description

Modified polypropylene power cable protection tube

Technical Field

The utility model relates to a cable protection tube technical field specifically is a modified polypropylene power cable protection tube.

Background

The non-excavation modified polypropylene (MPP) protective tube for the power cable is a novel plastic pipeline which is made by taking modified polypropylene as a main raw material and adopting a special formula and a processing technology, has a series of advantages of high strength, good high temperature resistance, easy cable threading and releasing, simple and convenient construction, cost saving and the like, is widely used as the protective tube of the power cable and the communication cable, more highlights the product personality as the construction of a non-excavation jacking pipe, meets the development requirement of a modern city, is suitable for the burial depth range of 2-18m, has the advantages of no environmental pollution, no influence on traffic, little damage to the stratum structure, safe and reliable construction, short period, low construction cost and reduction of the failure rate of a pipe network, but the cable protective tube is easily corroded and aged by soil and sewage after being buried underground for a long time, and the compression strength is not high, so that deformation is easily generated, and the normal use of the power cable is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modified polypropylene power cable protection tube possesses corrosion-resistant ageing resistance and the high advantage of compressive strength, has solved and has buried the erosion that receives soil and sewage easily in the underground for a long time and cause the whole corrosion of protection tube ageing easily, and compressive strength is not high moreover, very easily produces the problem of deformation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a modified polypropylene power cable protection tube, includes the body, the internal surface of body is provided with the outer protective layer, the inside of outer protective layer is provided with the inner protective layer, the outer protective layer includes polypropylene layer, rubber protection layer and corrosion resistant layer, one side on polypropylene layer bonds there is the rubber protection layer, one side on rubber protection layer bonds there is the corrosion resistant layer.

Preferably, the surface of the outer protective layer is wound with a metal wrapping layer, and the metal wrapping layer is woven by metal wires into a net shape and distributed on the surface of the outer protective layer.

Preferably, the outer diameter range of the pipe body is 16-110 mm, the wall thickness range of the pipe body is 2-10 mm, and the pipe body is made of High Density Polyethylene (HDPE).

Preferably, the inner protection layer is internally provided with an insulating layer, one side of the insulating layer is provided with a reinforcing layer, the reinforcing layer and the insulating layer are formed by pressing, and the reinforcing layer is made of an elastic metal material.

Preferably, a shear-proof steel plate is arranged between the outer protective layer and the inner protective layer, and the shear-proof steel plate is attached to the surface of the inner protective layer and is connected with the surface of the inner protective layer through a high-strength adhesive.

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

1. the utility model discloses an increase polypropylene layer and rubber protective layer in the inside of outer protective layer, can increase the holistic ageing resistance of body and corrosion resistance, and the rubber protective layer has elastic capacity, receive the extrusion rear surface at the body and can produce deformation rapidly, can recover fast after the atress disappears, be difficult for producing the deformation, can resist the corrosive power of soil and sewage simultaneously, make its surface can not produce corrosion, increase life, the erosion of burying underground receiving soil and sewage easily for a long time has been solved simultaneously and has been caused the whole corrosion of protection tube ageing easily, and compressive strength is not high, very easily produce the problem of deformation.

2. The utility model discloses a set up the metal around the covering on the surface of outer protective layer, not only can protect outer protective layer, can also strengthen resistance to compression and tensile strength, further the holistic intensity of body and toughness have been strengthened, and application range is extensive, is fit for popularizing and applying.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the outer protective layer structure of the present invention;

fig. 3 is a cross-sectional view of the tube body of the present invention.

In the figure: 1. a pipe body; 2. an outer protective layer; 3. an inner protective layer; 4. a polypropylene layer; 5. a rubber protective layer; 6. a corrosion-resistant layer; 7. and (6) a metal wrapping 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-3, a modified polypropylene power cable protection tube comprises a tube body 1, wherein the outer diameter of the tube body 1 is 16-110 mm, the wall thickness of the tube body 1 is 2-10 mm, the tube body 1 is made of high density polyethylene HDPE, an outer protection layer 2 is arranged on the inner surface of the tube body 1, a metal wrapping layer 7 is wound on the surface of the outer protection layer 2, the metal wrapping layer 7 is woven by metal wires into a net shape and distributed on the surface of the outer protection layer 2, a shear-proof steel plate is arranged between the outer protection layer 2 and the inner protection layer 3, the shear-proof steel plate is attached to the surface of the inner protection layer 3 and connected through a high-strength adhesive, the protection tube can be prevented from being stolen by a thief and is not easy to be cut, the metal wrapping layer 7 is arranged on the surface of the outer protection layer 2, not only can be protected by the outer protection layer 2, but also can enhance the compressive and tensile capabilities, and further, the application range is wide, the pipe is suitable for popularization and application, the inner protection layer 3 is arranged inside the outer protection layer 2, the insulation layer is arranged inside the inner protection layer 3, the reinforcement layer is arranged on one side of the insulation layer, the reinforcement layer and the insulation layer are formed by pressing, the reinforcement layer is made of elastic metal materials, the outer protection layer 2 comprises a polypropylene layer 4, a rubber protection layer 5 and a corrosion-resistant layer 6, the rubber protection layer 5 is bonded on one side of the polypropylene layer 4, the corrosion-resistant layer 6 is bonded on one side of the rubber protection layer 5, the aging resistance and the corrosion resistance of the whole pipe body 1 can be improved by adding the polypropylene layer 4 and the rubber protection layer 5 inside the outer protection layer 2, the rubber protection layer 5 has elastic capacity, the surface can be rapidly deformed after the pipe body 1 is extruded, the pipe can be rapidly restored after the stress disappears, the pipe is not easy to deform, and, the surface of the protective pipe cannot be corroded, the service life of the protective pipe is prolonged, and the problems that the protective pipe is easily corroded and aged by soil and sewage after being buried underground for a long time, the pressure resistance is low, and deformation is easily caused are solved.

The standard parts used in this document are commercially available, all the components in this document are customized according to the description of the specification and the drawings, and the connection relationship and specific structure between the layers in this document are all performed by the prior art, such as by mechanical methods, by adhesives, by various welding methods such as thermal welding, ultrasonic welding, flux, welding, and fusion crimping, and no specific description is made here.

During the use, through increase polypropylene layer 4 and rubber protective layer 5 in the inside of outer protective layer 2, can increase the holistic ageing resistance and the corrosion resistance of body 1, and rubber protective layer 5 has the elasticity ability, the surface can produce deformation rapidly after receiving the extrusion at body 1, can recover fast after the atress disappears, be difficult for producing the deformation, can resist the corrosivity of soil and sewage simultaneously, make its surface can not produce corrosion, increase life, through set up metal around covering 7 on the surface of outer protective layer 2, not only can protect outer protective layer 2, can also strengthen resistance to compression and tensile strength, further strengthened holistic intensity and toughness of body 1, wide in use range, and is suitable for popularization and application.

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 modified polypropylene power cable protection tube, includes body (1), its characterized in that: the inner surface of body (1) is provided with outer protective layer (2), the inside of outer protective layer (2) is provided with inner protective layer (3), outer protective layer (2) are including polypropylene layer (4), rubber protection layer (5) and corrosion-resistant layer (6), one side bonding of polypropylene layer (4) has rubber protection layer (5), one side bonding of rubber protection layer (5) has corrosion-resistant layer (6).

2. The modified polypropylene power cable protection tube according to claim 1, wherein: the surface of the outer protective layer (2) is wound with a metal wrapping layer (7), and the metal wrapping layer (7) is woven by metal wires into a net shape and distributed on the surface of the outer protective layer (2).

3. The modified polypropylene power cable protection tube according to claim 1, wherein: the outer diameter range of the pipe body (1) is 16-110 mm, the wall thickness range of the pipe body (1) is 2-10 mm, and the pipe body (1) is made of high-density polyethylene (HDPE).

4. The modified polypropylene power cable protection tube according to claim 1, wherein: the inner protection layer (3) is internally provided with an insulating layer, one side of the insulating layer is provided with a reinforcing layer, the reinforcing layer and the insulating layer are formed by pressing, and the reinforcing layer is made of elastic metal materials.

5. The modified polypropylene power cable protection tube according to claim 1, wherein: and an anti-shearing steel plate is arranged between the outer protective layer (2) and the inner protective layer (3), and the anti-shearing steel plate is attached to the surface of the inner protective layer (3) and is connected through a high-strength adhesive.