Impact-resistant tensile power protection pipe and preparation method thereof

A technology for power protection and impact resistance, applied in the direction of electrical components, etc., can solve the problems of inconvenient insertion and removal of power cables, failure to guarantee the stability of power cables, impact resistance, and tensile performance, etc., to achieve small friction and improve resistance Shock, easy insertion and removal effect

Inactive Publication Date: 2020-11-24
NINGGUO MINGFU CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power protection tube is inconvenient to insert and take out the power cable, and cannot guarantee the stability, impact resistance and tensile performance of the power cable after installation

Method used

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  • Impact-resistant tensile power protection pipe and preparation method thereof
  • Impact-resistant tensile power protection pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the present embodiment provides an impact-resistant and tensile-resistant power protection tube, which includes an outer sheath tube 1, an inner sheath tube 2, and an inner smooth tube 3 arranged in sequence from outside to inside. The inner smooth tube 3 is used to fix the power For the cable, wear-resistant protrusions 4 are distributed in an annular array between the inner sheath tube 2 and the inner smooth tube 3, inserting parts 5 are distributed in the peripheral annular array of the inner smooth tube 3, and the inner peripheral annular array of the outer sheath tube 1 is distributed with The engaging part 6 matched with the insertion part 5 . The power protection tube is provided with a structure from the outside to the inside and outside of the sheath tube 1, the inner sheath tube 2, and the inner smooth tube 3, and the wear-resistant protrusions 4 are distributed in an annular array between the inner sheath tube 2 and the inner smooth...

Embodiment 2

[0039] Such as figure 2 As shown, in the anti-shock and tensile power protection tube of this embodiment, the cross section of the insertion part 5 is L-shaped, and the engaging part 6 includes a U-shaped slot 61 for accommodating the insertion part 5 and a stopper for restricting the movement of the insertion part 5 plate 62. Of course, the structures of the insertion part 5 and the engaging part 6 are not limited to the above-mentioned embodiments, and can also be realized by other detachable assembly structures.

Embodiment 3

[0041] Such as Figure 1-2 As shown, this embodiment provides a preparation method for an impact-resistant and tensile-resistant power protection tube, including the following steps:

[0042] a. Preparation of the outer sheath tube: According to parts by weight, mix 42 parts of high-density polyethylene, 19 parts of polybutylene terephthalate, and 3 parts of vinyl glycidyl ether at 46 ° C and 250 rpm to mix evenly , add 9 parts of impact modifier, 8 parts of white carbon black, 5 parts of hydrophobic silica, 2.2 parts of carboxylic acid type compatibilizer, heat up to 66 ° C, stir at 400 rpm for 2.6 hours, extrude and granulate, Then use a molding extruder to extrude to obtain an outer sheath tube; wherein, the impact modifier is prepared from the following raw materials in parts by weight: 50 parts of polystyrene resin, 16 parts of nano-titanium dioxide, 10 parts of zeolite powder, gas phase two 7 parts of silicon oxide.

[0043] b. Preparation of inner sheath tube: 28 part...

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Abstract

The invention provides an impact-resistant tensile power protection pipe and a preparation method thereof, and relates to the technical field of power protection pipes. The power protection pipe comprises an outer sheath pipe, an inner sheath pipe and an inner smooth pipe which are sequentially arranged from outside to inside, the inner smooth pipe is used for fixing a power cable, abrasion-resistant protrusions are distributed between the inner sheath pipe and the inner smooth pipe in an annular array mode, inserting parts are distributed on the periphery of the inner smooth pipe in an annular array mode, and clamping parts matched with the inserting parts are distributed on the inner periphery of the outer sheath tube in an annular array mode. Friction force between the inner sheath pipeand the inner smooth pipe is increased, the phenomenon that the inner smooth pipe rotates when the power cable is installed is avoided, meanwhile, the inserting parts are clamped in the clamping parts, and the stability, impact resistance and tensile strength of the power cable in the mounting process are guaranteed.

Description

technical field [0001] The invention relates to the technical field of power protection tubes, in particular to an impact-resistant and tensile power protection tube and a preparation method thereof. Background technique [0002] The power protection tube refers to a metal protection tube with a certain mechanical strength that is laid on the outer layer of the cable to prevent the cable from being damaged. The communication cables and wire ropes are charged to protect the cables, switches and core boards, so that the whole machine will not be burned out, and it also plays a certain role in isolating the magnetic field interference of the power lines. The power protection tube is inconvenient to insert and take out the power cable, and cannot guarantee the stability, impact resistance and tensile performance of the power cable after installation. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention provides an impact-resistant and ...

Claims

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Application Information

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IPC IPC(8): H02G3/04C08L23/06C08L67/02C08L25/06C08K13/04C08K7/26C08K3/22C08K3/36
CPCC08K2003/2241C08K2201/011C08K2201/014C08L23/06C08L2203/18C08L2205/03C08L2205/06C08L2205/08H02G3/0406H02G3/0481C08L67/02C08L25/06C08K13/04C08K7/26C08K3/22C08K3/36
Inventor 卢康宁程炎军
Owner NINGGUO MINGFU CABLE CO LTD
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