CN112017810A

CN112017810A - Power cable with good insulation safety

Info

Publication number: CN112017810A
Application number: CN201910471317.6A
Authority: CN
Inventors: 何建荣; 窦国祥; 吴树谦
Original assignee: Jiangsu Hongyun Cable Co ltd
Current assignee: Jiangsu Hongyun Cable Co ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-12-01

Abstract

The invention discloses a power cable with good insulation safety, relates to the field of power cables, and aims to solve the problems that the conventional power cable is only sleeved with a rubber sleeve, the rubber sleeve is rotten and broken after being used for a long time, the whole cable is short-circuited or leaks electricity, and a wire core in the cable is easily damaged when the cable is cut. Including protection gum cover and supplementary shutdown mechanism, the inside of protection gum cover is provided with the sinle silk, and the outside arrangement of protection gum cover has insulating cover, the outer wall of insulating cover is inlayed and is had protection machanism, supplementary shutdown mechanism connects inside the inner wall of protection gum cover, and protection machanism's inside is including plastics ball, and plastics ball swing joint in the outer wall of insulating cover, the rubber sleeve is installed to the one end that protection gum cover central point was kept away from to plastics ball, and the inside spout that is provided with of inner wall of rubber sleeve.

Description

Power cable with good insulation safety

Technical Field

The invention relates to the field of power cables, in particular to a power cable with good insulation safety.

Background

The power cable is used for transmitting and distributing electric energy, is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater, has a gradually increased proportion in the power line, has higher and higher requirements on the performance of the cable along with social requirements, and not only has high-efficiency transmission performance, but also has high safety.

The existing power cable is only sleeved with a layer of rubber sleeve, after the rubber sleeve is used for a long time, the rubber sleeve can be rotten and broken, the phenomenon that the whole cable is short-circuited or leaks electricity can be caused, and when the cable is cut, a wire core inside the cable is easily damaged.

Disclosure of Invention

The invention aims to provide a power cable with good insulation safety, and aims to solve the problems that the existing power cable provided in the background art is only sleeved with a rubber sleeve, the rubber sleeve is rotten and broken after being used for a long time, the whole cable is short-circuited or leaks electricity, and a wire core in the cable is easily damaged when the cable is cut.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a power cable that insulating security is good, includes protection gum cover and supplementary shutdown mechanism, the inside of protection gum cover is provided with the sinle silk, and the outside arrangement of protection gum cover has insulating cover, the outer wall of insulating cover is inlayed and is had protection mechanism, supplementary shutdown mechanism connects inside the inner wall of protection gum cover.

Preferably, the inside of protection machanism is including the plastics ball, and plastics ball swing joint in the outer wall of insulating cover, the rubber sleeve is installed to the one end that protection gum cover central point was kept away from to the plastics ball, and the inside spout that is provided with of inner wall of rubber sleeve.

Preferably, sliding connection is adopted between the plastic ball and the sliding groove, and sliding connection is adopted between the plastic ball and the insulating sleeve.

Preferably, the rubber sleeve is of an annular structure, a hollowed-out structure is formed between the rubber sleeve and the insulating sleeve, and the rubber sleeve is distributed outside the insulating sleeve at equal intervals.

Preferably, the inside of supplementary shutdown mechanism is including cutting out the groove, and cuts out and constitute the integration through moulding plastics between groove and the protective rubber cover and be connected, the bottom in cutting out the groove is settled there is the plastics backing plate, and the inside in cutting out the groove is inlayed and is had the rubber buffer.

Preferably, the cutting grooves are distributed in the inner wall of the protective rubber sleeve at equal intervals, the cutting grooves are connected with the plastic cushion plate, and the plastic cushion plate is in sliding connection with the protective rubber sleeve.

Preferably, the rubber plug is movably connected with the cutting groove, and the cutting groove is of a V-shaped structure.

Compared with the prior art, the invention has the beneficial effects that:

1. in the invention, as the plastic ball can roll between the chute and the insulating sleeve, when the rubber sleeve is stressed outside, the plastic ball is rotated outside the insulating sleeve, so that birds, other animals and external objects can be effectively prevented from being attached to the power cable, and the power cable is prevented from being damaged.

2. In the invention, the rubber sleeve can further protect the power cable from the outside, and a certain distance is reserved between the rubber sleeve and the insulating sleeve, so that the rubber sleeve not only can play a role of heat insulation in a high-temperature period, but also can further increase the insulating property of the power cable.

3. According to the power cable cutting device, the cutting grooves are equidistantly distributed in the inner wall of the protective rubber sleeve, so that the cable can be cut along the cutting grooves, the plastic base plate is arranged at the bottom end of each cutting groove, the plastic base plate can block the cutting blade, the phenomenon that the wire core in the cable is damaged by cutting when the cable is cut can be effectively prevented, and the plastic base plate can be pulled out after the cutting is finished, so that the functionality and flexibility of the power cable are embodied.

4. In the invention, the rubber plug can block the cutting groove when not cutting, so as to prevent water or other substances from accumulating in the cutting groove, avoid influencing the cable, and lead the cutting to be drawn out from the cutting groove.

Drawings

Fig. 1 is a front cut-away view of a power cable with good insulation safety according to the present invention;

FIG. 2 is a side cross-sectional view of the upper end of a power cable of the present invention having good insulation safety;

fig. 3 is a state view of the rubber stopper of the present invention inserted into the cutting groove.

In the figure: 1. protecting the rubber sleeve; 2. a wire core; 3. an insulating sleeve; 4. a protection mechanism; 401. plastic balls; 402. a rubber sleeve; 403. a chute; 5. an auxiliary cutting mechanism; 501. cutting a groove; 502. a plastic backing plate; 503. and a rubber plug.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, an embodiment of the present invention is shown: the utility model provides a power cable that insulating security is good, includes protection gum cover 1 and supplementary shutdown mechanism 5, and the inside of protection gum cover 1 is provided with sinle silk 2, and the outside arrangement of protection gum cover 1 has insulating cover 3, and the outer wall of insulating cover 3 is inlayed and is had protection machanism 4, and supplementary shutdown mechanism 5 is connected inside the inner wall of protection gum cover 1.

Further, the inside of protection machanism 4 is including plastics ball 401, and plastics ball 401 swing joint is in the outer wall of insulating cover 3, and rubber sleeve 402 is installed to the one end that protection gum cover 1 central point was kept away from to plastics ball 401, and the inside spout 403 that is provided with of inner wall of rubber sleeve 402.

Further, be sliding connection between plastics ball 401 and the spout 403, and be sliding connection between plastics ball 401 and the insulating cover 3, because plastics ball 401 can roll between spout 403 and insulating cover 3, then when the outside atress of rubber sleeve 402, utilize plastics ball 401 to rotate in the outside of insulating cover 3, can effectually prevent like this that birds or other animals and external object from attaching to power cable, avoid causing the damage to power cable.

Further, rubber sleeve 402 is the loop configuration, is fretwork column structure between its rubber sleeve 402 and the insulating cover 3, and rubber sleeve 402 equidistance distributes in the outside of insulating cover 3, and rubber sleeve 402 can carry out further protection to inside power cable from the outside, and because there is certain distance between rubber sleeve 402 and the insulating cover 3, not only can play thermal-insulated effect like this in the high temperature season, can further increase power cable's insulating properties again.

Further, the inside of supplementary shutdown mechanism 5 is including cutting out groove 501, and constitutes the integration through moulding plastics between cutting out groove 501 and the protection gum cover 1 and be connected, and the bottom of cutting out groove 501 is settled there is plastic backing plate 502, and the inside of cutting out groove 501 is inlayed and is had rubber buffer 503.

Further, tailor groove 501 equidistance distribution inside the inner wall of protection gum cover 1, it is tailor groove 501 and is connected with plastic backing plate 502, and be sliding connection between plastic backing plate 502 and the protection gum cover 1, the inside equidistance distribution of inner wall of protection gum cover 1 has tailors groove 501, can tailor the cable along tailorring groove 501 like this, and the bottom of tailorring groove 501 is equipped with plastic backing plate 502, plastic backing plate 502 can stop the scissors cutting piece, like this can effectually prevent to tailor the cable, cut bad with cable inside sinle silk 2, and tailor the completion back, can take out plastic backing plate 502, embody this power cable's functionality and flexibility.

Further, rubber buffer 503 and tailor for swing joint between the groove 501, and tailor groove 501 and be the V-arrangement structure, rubber buffer 503 can be when not tailorring, will tailor groove 501 and plug up, prevents to tailor groove 501 inside and pile up moisture or other substances, avoids causing the influence to the cable, needs to tailor and can take out from tailoring groove 501.

The working principle is as follows: when the cable cutting device is used, when a cable with a certain length needs to be cut, after the cable is measured, the approximately similar cutting groove 501 is selected, the rubber plug 503 in the cutting groove 501 is pulled out, the cutting device is cut along the cutting groove 501, and because the plastic backing plate 502 is arranged at the bottom end of the cutting groove 501, the plastic backing plate 502 can block a cutting blade, so that the cable core 2 in the cable can be effectively prevented from being cut, and after the cutting is finished, the plastic backing plate 502 can be pulled out, when birds or other objects are attached to the cable after the cable is put into use, the upper end of the rubber sleeve 402 is stressed to automatically slide outside the insulating sleeve 3 along the plastic ball 401, so that the birds or other objects cannot be stably attached to the cable, and the birds or other objects are prevented from being attached to the cable, and the rubber sleeve 402 can further protect the power cable in the cable from the outside, and because there is certain distance between insulating cover 3 and the rubber sleeve 402, so not only can play the thermal-insulated effect in high temperature period, can further increase power cable's insulating properties again.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a power cable that insulating security is good, includes protective rubber cover (1) and supplementary shutdown mechanism (5), its characterized in that: the cable core (2) is arranged inside the protective rubber sleeve (1), the insulating sleeve (3) is arranged outside the protective rubber sleeve (1), the protective mechanism (4) is embedded in the outer wall of the insulating sleeve (3), and the auxiliary cut-off mechanism (5) is connected to the inner wall of the protective rubber sleeve (1).

2. The power cable with good insulation safety as claimed in claim 1, wherein: the inside of protection machanism (4) is including plastics ball (401), and plastics ball (401) swing joint in the outer wall of insulating cover (3), rubber sleeve (402) are installed to the one end that protection gum cover (1) central point was kept away from in plastics ball (401), and inside spout (403) that is provided with of inner wall of rubber sleeve (402).

3. A power cable with good insulation safety as claimed in claim 2, wherein: the plastic ball (401) is in sliding connection with the sliding groove (403), and the plastic ball (401) is in sliding connection with the insulating sleeve (3).

4. A power cable with good insulation safety as claimed in claim 2, wherein: the rubber sleeve (402) is of an annular structure, a hollow structure is formed between the rubber sleeve (402) and the insulating sleeve (3), and the rubber sleeve (402) is equidistantly distributed outside the insulating sleeve (3).

5. The power cable with good insulation safety as claimed in claim 1, wherein: the inside of supplementary shutdown mechanism (5) is including cutting groove (501), and cuts out and constitute the integration through moulding plastics between groove (501) and protection gum cover (1) and be connected, the bottom of cutting groove (501) is settled there is plastic backing plate (502), and the inside of cutting groove (501) is inlayed and is had rubber buffer (503).

6. The power cable with good insulation safety as claimed in claim 5, wherein: cut out groove (501) equidistance and distribute inside the inner wall of protection gum cover (1), it cuts out groove (501) and is connected with plastic backing plate (502), and is sliding connection between plastic backing plate (502) and protection gum cover (1).

7. The power cable with good insulation safety as claimed in claim 5, wherein: the rubber buffer (503) is movably connected with the cutting groove (501), and the cutting groove (501) is of a V-shaped structure.