CN109741870B

CN109741870B - Power line

Info

Publication number: CN109741870B
Application number: CN201910067515.6A
Authority: CN
Inventors: 蒋莲莲
Original assignee: Zhongshan City Hongyun Electric Appliance Co ltd
Current assignee: ZHONGSHAN CITY HONGYUN ELECTRIC APPLIANCE Co.,Ltd.
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2020-08-28
Anticipated expiration: 2039-01-24
Also published as: CN109741870A

Abstract

The invention discloses a power line which comprises a wire outer tegument, wherein an inflation cavity is arranged inside the wire outer tegument, more than one inner core wire is arranged in the inflation cavity, more than one inner core wire is wrapped by an inner protective layer, more than one positioning sleeve is convexly arranged on the wire outer tegument, each positioning sleeve is internally provided with a movable cavity, two sides of the inner wall of each movable cavity are respectively provided with a guide sliding groove, a piston is respectively arranged in each movable cavity, two sides of each piston are respectively provided with a sliding block, and the sliding blocks are slidably arranged in the guide sliding grooves. The power line can be inflated by inert gas to expand, so that the gaps between the positioning sleeves which are close to each other originally are pulled open after inflation, the power line can be always in expanded contact with the inner wall of the line hole, swinging and displacement of the power line are prevented, and the internal core wire can be effectively suspended in the power line after expansion, so that the impact resistance and the shear resistance are improved.

Description

Power line

Technical Field

The invention relates to the field of electronic wires, in particular to a power line.

Background

The wire includes many kinds, including power cord, cable conductor, signal line, etc., and the power cord includes inside heart yearn and outside protective layer for the present case that uses many power cords as an example. Because the core wire is tightly attached to the inner wall of the protective layer, the inner core wire can be pressed immediately after the protective layer is pressed, so that the service life of the whole core wire is shortened, and the impact resistance and the pressure resistance are poor;

in addition, in equipment, pass for the power supply line, can set up a large amount of passageways of being qualified for the next round of competitions, the space of passageway of being qualified for the next round of competitions can be greater than the external diameter of power cord, the power cord set up in the passageway of being qualified for the next round of competitions in back can not with the passageway chucking of being qualified for the next round of competitions, lead to equipment to be qualified for the next round of competitions when using and rock, and at the in-process of rocking, the power cord can be continuous swing, the wobbling power cord can make the power cord not hard up with the welding.

Disclosure of Invention

The invention aims to solve the technical problem of providing a power line which can expand after being installed in a wire outlet groove, well protect the power line, enable the power line to be tightly attached to the inner wall of the wire groove, enable the power line not to shake during use, and improve the use safety and the service life.

The invention is realized by the following technical scheme: the utility model provides a power cord, includes the outer tegillum of wire rod, and the outer tegillum of wire rod is inside to have one and to aerify the chamber, aerify the intracavity and be provided with the interior heart yearn more than one, the interior heart yearn more than one passes through inner protective layer parcel, the arch is provided with a plurality of position sleeves on the outer tegillum of wire rod, all is provided with a movable chamber in every position sleeve, and movable intracavity wall both sides all are provided with a direction spout, a piston is all installed to the activity intracavity, and the both sides of piston set up a slider respectively, and slider slidable mounting is in the direction spout, and the lateral surface of a plurality of position sleeves all contacts.

As a preferred technical scheme, the wire outer tegument is made of elastic rubber materials, an inflation inlet is arranged at the head end or the tail end of the wire outer tegument, and the inflation inlet is communicated with an inflation cavity inside the wire outer tegument.

According to a preferable technical scheme, one side of the piston, which is opposite to the inner core wire, is inserted with one connecting wire, the outer wall of the inner protective layer, which is opposite to each connecting wire, is provided with a corresponding fixed shaft sleeve, and the other ends of the connecting wires are inserted into the corresponding fixed shaft sleeves and are fixedly connected with each other by glue.

As the preferred technical scheme, the positioning sleeve and the wire outer tegument layer are of an integral injection molding structure, the positioning sleeve is of a thickened structure, and the wall thickness of the positioning sleeve is 4 times larger than that of the wire outer tegument layer.

As a preferable technical scheme, the connecting wires are all metal heat conducting wires.

As a preferred technical scheme, a V-shaped clamping opening is formed between every two adjacent positioning sleeves, and inert gas is injected into an inflation cavity inside the outer covering layer of the wire through a one-way inflation opening to enable the whole outer covering layer of the wire to expand.

The invention has the beneficial effects that:

after the inert gas is filled, the fire disaster occurrence rate can be reduced by using the inert gas, and the use is safer;

the invention can effectively expand the inert gas after being filled with the inert gas, and the gaps between the positioning sleeves can be expanded after expansion, so that the adjacent two power lines can be mutually positioned by utilizing the expanded gaps and the positioning sleeves, the positioning sleeve on one side can be clamped in a gap cavity between the positioning sleeves of the power lines on the side, and the installation stability between the power lines is ensured;

and thirdly, the whole power line is inflated according to the aperture of the outlet channel, so that the power line is tightly clamped with the inner wall of the outlet channel after being inflated and expanded, the power line cannot shake even if vibration exists, and the service life is longer.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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

fig. 2 is a schematic view of the internal structure of the present invention.

Detailed Description

As shown in fig. 1 and 2, a power cord comprises a wire outer tegument 3, an inflation cavity 5 is arranged inside the wire outer tegument 3, more than one inner core wire 8 is arranged in the inflation cavity 5, more than one inner core wire 8 is wrapped by an inner protective layer 7, a plurality of positioning sleeves 2 are arranged on the wire outer tegument 3 in a protruding mode, a movable cavity 4 is arranged in each positioning sleeve 2, two sides of the inner wall of each movable cavity 4 are provided with a guide sliding groove 11, a piston 13 is arranged in each movable cavity 4, two sides of each piston 13 are respectively provided with a sliding block 12, the sliding blocks 12 are slidably mounted in the guide sliding grooves 11, the outer side faces of the positioning sleeves 2 are in mutual contact, and a clearance cavity is formed between each positioning sleeve 2.

In this embodiment, wire tegument 3 adopts elastic rubber material to make, and an inflation inlet 14 is installed to the head end or the tail end of wire tegument 3, and inflation inlet 14 communicates with each other with the inside gas cavity of wire tegument 7, aerifys through inflation inlet 14 for whole wire tegument 3 can expand, can lock outlet channel after the inflation, prevents that the power cord from rocking under the vibration environment.

Wherein, piston 13 all inserts to set up a connecting wire 9 on one side relative to the internal core line, and the outer wall of inner protective layer 7 is just facing every connecting wire 9 and all is provided with corresponding fixed axle sleeve 6, and the other end of connecting wire 9 all inserts in corresponding fixed axle sleeve 6 and beats glue water fixed connection. When the outer layer of the wire rod is not inflated and expanded, the connecting wire retracts into the positioning sleeve, after inflation and expansion, the outer layer of the whole wire rod is expanded, a gap between the positioning sleeves is enlarged, the piston on the inner side of the connecting wire moves relative to the positioning sleeve, and at the moment, the whole inner core wire and the inner protection layer are suspended and supported by more than one connecting wire, so that the inner core wire has very good heat dissipation performance and shock and pressure resistance when being used under the condition.

In this embodiment, position sleeve 2 and wire rod tegument 3 formula injection moulding structure as an organic whole, and position sleeve 2 is thickening structure, and its wall thickness is greater than 4 times of wire rod tegument 3. Because behind the position sleeve thickness, it is difficult to expand to aerify the back, consequently can guarantee the opening size in activity chamber all the time, prevents that the slider of sealing plug both sides from extracting from the direction spout.

In this embodiment, the connecting wires 9 are all made of metal heat-conducting wires, and the overall heat dissipation performance is increased by the metal heat-conducting wires, and the metal heat-conducting wires are preferably elastic metal wires, so that the supporting buffer force is certain, and the anti-seismic performance of the core wires is increased.

Wherein, all form the mouth that presss from both sides of a "V" font between the adjacent position sleeve 2, the wire rod tegument 3 inside aerifys the intracavity and pours into inert gas and make whole wire rod tegument inflation through one-way inflation inlet, position sleeve 2 is when not aerifing, the clearance between them is very little, but in case aerify the back, the clearance chamber between the position sleeve just can increase, when having the stranded power cord this moment, the position sleeve of the power cord of adjacent side can block in the clearance chamber of one side power cord, the function of mutual location has been had between several strands of power cords like this, increase stability in use.

The invention has the beneficial effects that:

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. A power cord, characterized by: the wire rod outer tegument comprises a wire rod outer tegument, wherein an inflation cavity is arranged inside the wire rod outer tegument, more than one inner core wire is arranged in the inflation cavity, more than one inner core wire is wrapped by an inner protective layer, a plurality of positioning sleeves are convexly arranged on the wire rod outer tegument, each positioning sleeve is internally provided with a movable cavity, two sides of the inner wall of each movable cavity are respectively provided with a guide chute, a piston is respectively arranged in each movable cavity, two sides of each piston are respectively provided with a sliding block, the sliding blocks are slidably arranged in the guide chutes, the outer side surfaces of the plurality of positioning sleeves are mutually contacted, and a clearance cavity is formed between;

the wire outer tegument layer is made of elastic rubber materials, an inflation inlet is arranged at the head end or the tail end of the wire outer tegument layer, and the inflation inlet is communicated with an inflation cavity inside the wire outer tegument layer;

one side of the piston, which is opposite to the inner core wire, is inserted with a connecting wire, the outer wall of the inner protective layer, which is right opposite to each connecting wire, is provided with a corresponding fixed shaft sleeve, and the other ends of the connecting wires are inserted into the corresponding fixed shaft sleeves and are fixedly connected by glue water;

a V-shaped clamping opening is formed between every two adjacent positioning sleeves, and inert gas is injected into an inflation cavity inside the outer tegument of the wire through a one-way inflation opening to enable the whole outer tegument of the wire to expand.

2. The electrical power cord as set forth in claim 1, wherein: the positioning sleeve and the wire outer tegument layer are of an integral injection molding structure, the positioning sleeve is of a thickened structure, and the wall thickness of the positioning sleeve is 4 times larger than that of the wire outer tegument layer.

3. The electrical power cord as set forth in claim 1, wherein: the connecting wires are all metal heat conducting wires.