CN211150150U

CN211150150U - Plastic insulation control cable capable of preventing frost cracking

Info

Publication number: CN211150150U
Application number: CN201922109884.5U
Authority: CN
Inventors: 周茶
Original assignee: Qingdao Jinzhou Weiye Cable Co ltd
Current assignee: Qingdao Jinzhou Weiye Cable Co ltd
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2020-07-31
Anticipated expiration: 2029-11-30

Abstract

The utility model discloses a plastic insulation control cable that prevents frostbite and split, including cable, protective housing base and protective housing, the skin weld of protective housing base has U type frame, the lateral wall of U type frame has seted up the screw, the spiro union has the bolt in the screw, the bolt runs through the protective housing, the U type groove of protective housing internal surface corresponds with U type frame groove position, the cable centre gripping is between U type frame and protective housing, the protection architecture of cable outside all uses the hard rubber class material to make, and have good anti-cutting ability, can effectively protect the cable that exposes outside under low temperature operational environment, can not directly receive external impact, the inflation layer intussuseption is filled with the felt-like material that the inflation fibre supported, have good elasticity, the clearance between fibrous layer and outside line skin has been filled to a certain extent, make it unlikely to rock among them, simultaneously when outside line skin and pencil receive the influence emergence of external temperature to change, the bulking layer is compressed to avoid the occurrence of expansion and cracking of the strand sheath.

Description

Plastic insulation control cable capable of preventing frost cracking

Technical Field

The utility model relates to a cable conductor technical field specifically is a plastics insulation control cable who prevents frostbite and split.

Background

The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and transmission lines under river-crossing seawater; outdoor temperature in winter in northern areas of China is below zero year round, cables in the areas can be in a low-temperature working state in half of the year, cable skins made of rubber materials can be embrittled at a low-temperature state, rubber plastics with certain cold resistance are selected to serve as the cable skins in the existing cables to avoid the problem of frost cracking of the cable skins, and when the working environment changes violently, the inner and outer shrinkage rates of the cable skins still deviate due to high-speed expansion and contraction, and part of the cable skins are cracked.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent plastic insulation control cable of frost crack to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a plastic insulation control cable capable of preventing frost cracking comprises a cable, a protective shell base and a protective shell, wherein a U-shaped frame is welded on the surface of the protective shell base, screw holes are formed in the side wall of the U-shaped frame, bolts are screwed in the screw holes and penetrate through the protective shell, U-shaped grooves in the inner surface of the protective shell correspond to the grooves of the U-shaped frame in position, and the cable is clamped between the U-shaped frame and the protective shell;

the cable comprises a wire harness, a fiber layer, an expanded layer and an outer wire skin are sequentially wrapped outside the wire harness, and a plug and a socket are respectively and fixedly installed at the left end and the right end of the wire harness.

Preferably, expansion bolts are respectively inserted into four corners of the protective shell base, and elastic washers are arranged between the protective shell base and the expansion bolts.

Preferably, the upper and lower ends of the protective shell are integrally formed with side wing plates.

Preferably, the tail ends of the side wing plates are fixedly provided with dustproof brushes.

Preferably, the inner surface of the U-shaped frame is uniformly provided with anti-slip teeth.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a plastics insulation control cable that prevents frostbite and split, the outside protection architecture of cable all uses the hard rubber class material to make, can bear the impact force of certain degree, and there is good anti cutting ability, can effectively protect the cable that exposes outside under low temperature operational environment, can directly not receive external impact, the material of the felt form that bulked fiber supported is filled in the bulking layer, good elasticity has, the clearance between fibrous layer and outside line skin has been filled to a certain extent, make it be unlikely to make a round trip to rock wherein, when outside line skin and pencil receive outside temperature to influence emergence change, thereby can compress the bulking layer and avoid the condition emergence of line skin expansion crack.

Drawings

Fig. 1 is a left side view of the present invention;

fig. 2 is a front cross-sectional view of the cable of the present invention.

In the figure: the cable comprises a cable 1, a protective shell base 2, a 3U-shaped frame, a protective shell 4, a side wing plate 5, an expansion bolt 6, an elastic washer 7, a bolt 8, a screw hole 9, an anti-slip tooth 10, a dustproof brush 11, an outer wire skin 12, a fiber layer 13, a swelling layer 14 and a wire harness 15.

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.

Referring to fig. 1-2, the present invention provides a technical solution: a plastic insulation control cable capable of preventing frost cracking comprises a cable 1, a protective shell base 2 and a protective shell 4, wherein a U-shaped frame 3 is welded on the surface of the protective shell base 2, a screw hole 9 is formed in the side wall of the U-shaped frame 3, a bolt 8 is screwed in the screw hole 9, the bolt 8 penetrates through the protective shell 4, a U-shaped groove in the inner surface of the protective shell 4 corresponds to the groove of the U-shaped frame 3, and the cable 1 is clamped between the U-shaped frame 3 and the protective shell 4;

the cable 1 comprises a wire harness 15, a fiber layer 13, an expanded layer 14 and an outer wire sheath 12 are sequentially wrapped outside the wire harness 15, a plug 16 and a socket 17 are respectively and fixedly mounted at the left end and the right end of the wire harness 15, the fiber layer 13 is woven by using a fire-resistant fiber material, a felt-shaped material supported by expanded fibers is filled in the expanded layer 14, the expanded layer has good elasticity, a gap between the fiber layer 13 and the outer wire sheath 12 is filled to a certain degree, the expanded layer is prevented from shaking back and forth, and when the outer wire sheath 12 and the wire harness 15 are affected by external temperature and change, the expanded layer 14 can be compressed, so that the expansion and cracking of the wire sheath can be avoided.

Specifically, expansion bolts 6 are respectively inserted into four corners of the protective shell base 2, and elastic washers 7 are arranged between the protective shell base 2 and the expansion bolts 6.

Specifically, the upper and lower ends of the protective case 4 are integrally formed with side flaps 5.

Specifically, the dust brush 11 is fixedly attached to each of the distal ends of the side wings 5.

Specifically, the inner surface of the U-shaped frame 3 is evenly provided with the anti-slip teeth 10.

The working principle is as follows: when the utility model discloses when using, the outside protection architecture of cable 1 all uses the hard rubber class material to make, can bear the impact force of certain degree, and there is good anti cutting ability, can effectively protect cable 1 that exposes outside under low temperature operational environment, can directly not receive external shock, the material that is filled with the felt form that popped fibre supported in the layer 14 intussuseption of swelling, good elasticity has been had, the clearance between fibrous layer 13 and outside line skin 12 has been filled to a certain extent, make it be unlikely to make a round trip to rock wherein, when outside line skin 12 and pencil 15 receive outside temperature influence emergence change, thereby can compress the layer 14 of swelling and avoid the condition emergence of line skin expansion crack.

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 plastics insulation control cable of frostproofing split, includes cable (1), protective housing base (2) and protective housing (4), its characterized in that: the cable protection device is characterized in that a U-shaped frame (3) is welded on the surface of the protection shell base (2), a screw hole (9) is formed in the side wall of the U-shaped frame (3), a bolt (8) is screwed in the screw hole (9), the bolt (8) penetrates through the protection shell (4), a U-shaped groove in the inner surface of the protection shell (4) corresponds to the groove of the U-shaped frame (3), and the cable (1) is clamped between the U-shaped frame (3) and the protection shell (4);

the cable (1) comprises a wiring harness (15), a fiber layer (13), a bulking layer (14) and an outer wire sheath (12) are sequentially wrapped outside the wiring harness (15), and a plug (16) and a socket (17) are respectively and fixedly mounted at the left end and the right end of the wiring harness (15).

2. The frost crack resistant insulated plastic control cable of claim 1, wherein: expansion bolts (6) are respectively inserted into four corners of the protective shell base (2), and elastic washers (7) are arranged between the protective shell base (2) and the expansion bolts (6).

3. The frost crack resistant insulated plastic control cable of claim 1, wherein: the upper end and the lower end of the protective shell (4) are integrally formed with side wing plates (5).

4. The frost crack prevention plastic insulated control cable of claim 3, wherein: the tail ends of the side wing plates (5) are fixedly provided with dustproof brushes (11).

5. The frost crack resistant insulated plastic control cable of claim 1, wherein: the inner surface of the U-shaped frame (3) is uniformly provided with anti-skid teeth (10).