CN216528081U

CN216528081U - Double-insulation outer-layer cable

Info

Publication number: CN216528081U
Application number: CN202123444835.0U
Authority: CN
Inventors: 赵莉; 许金洞; 陈化喜; 孟凡伟; 周传亚; 许士新; 李建恒
Original assignee: Xianglinzhi Yanggu Cable Co ltd
Current assignee: Xianglinzhi Yanggu Cable Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-13
Anticipated expiration: 2031-12-28

Abstract

The utility model belongs to the technical field of cables, and discloses a cable with double insulating outer layers, which comprises a shell, wherein a waterproof inner sleeve is fixedly arranged inside the shell, insulating shells positioned on two sides of the outer surface of the waterproof inner sleeve are fixedly arranged inside the shell, insulating blocks are fixedly arranged inside the waterproof inner sleeve, and a waterproof sleeve positioned between the insulating blocks is fixedly arranged inside the waterproof inner sleeve. According to the utility model, the insulating block and the insulating shell are arranged, and due to the design of the insulating shell, the insulating protection can be carried out between the outer shell and the waterproof inner sleeve, so that a user or an electric power person can have good safety guarantee when contacting the cable, and a primary insulating effect is achieved.

Description

Double-insulation outer-layer cable

Technical Field

The utility model belongs to the technical field of cables, and particularly relates to a cable with double insulating outer layers.

Background

The cable is an electric energy or signal transmission device, generally comprising several or several groups of conductors twisted together to form a cable like a rope, wherein the conductors of each group are insulated from each other and are usually twisted around a center, and the whole cable is coated with a highly insulating coating, and the cable has the characteristics of internal electrification and external insulation.

At present, the cable is extensive in each field of being applied to, is the electric power tool commonly used in people's life, and current cable is at the in-process of in-service use, because its inside can let in the electric current, consequently can be equipped with corresponding insulating cover, however this insulating cover is the setting of individual layer only in the outside of wire generally, and when the cable is in long-term the use, if this insulating cover is because of factors such as ageing are defective, the phenomenon of electric leakage will take place easily, and then brings certain potential safety hazard for user and electric power personnel operation and use.

Meanwhile, the existing cable is often used in different environments, such as directly exposed to the outside or buried underground, however, no matter the outside or the underground, the existing cable has moisture interference, the waterproof effect of the existing cable is not ideal enough, and the moisture in the surrounding environment is easily introduced into the cable after long-term use, so that the normal operation of the cable is affected, and therefore, the improvement of the existing cable is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a cable with double insulating outer layers, which has the advantages of good insulating effect and high waterproof performance.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an outer cable of two insulation, includes the shell, the inside fixed mounting of shell has waterproof endotheca, the inside fixed mounting of shell has the insulating casing that is located waterproof endotheca surface both sides, the inside fixed mounting of waterproof endotheca has the collets, the inside fixed mounting of waterproof endotheca has the waterproof cover that is located between the collets, the inside fixed mounting of waterproof cover has the insulating cover body, the inside fixed mounting of insulating cover body has the wire.

According to the preferable technical scheme, the number of the insulating blocks is three, the filling materials are fixedly arranged inside the three insulating blocks, and due to the design of the filling materials, the strength of the inside of the insulating blocks and the strength of the inside of the waterproof inner sleeve are enhanced, so that the waterproof inner sleeve and the inside of the insulating blocks cannot be slightly sunken.

As a preferred technical solution of the present invention, the number of the insulation shells is two, the two insulation shells are both arc-shaped, and are made of polypropylene, and polypropylene has good chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties, good high wear-resistant processability, and the like, so that a primary insulation effect can be achieved in the outer surface of the cable.

As a preferred technical scheme of the utility model, the outer surface of the insulating block is fixedly connected with the outer surface of the waterproof sleeve, the radian of the outer surface of the insulating block is the same as that of the outer surface of the waterproof sleeve, the insulating block is made of polyethylene, and the polyethylene has good low-temperature resistance, good chemical stability, small water absorption and excellent electrical insulation, so that the insulating effect in the waterproof inner sleeve can be enhanced, the insulating performance of the outer layer of the cable can be obviously improved through the matching between the insulating block and the insulating shell, and the operation safety of power personnel is effectively guaranteed.

As a preferred technical scheme of the utility model, both sides of the outer surface of the waterproof inner sleeve are fixedly connected with the inner surface of the insulating shell, the waterproof inner sleeve is made of butyl rubber, the butyl rubber has good chemical stability and thermal stability, and most prominently, the air tightness and the water tightness are achieved, so that external moisture is effectively prevented from entering the inside of the waterproof inner sleeve, and a good primary waterproof effect is achieved.

As a preferred technical scheme of the utility model, the number of the waterproof sleeves is three, the three waterproof sleeves have the same size, and are all made of polyurethane, and the polyurethane has excellent chemical resistance, rebound resilience, mechanical properties and waterproofness, so that the waterproof effect can be enhanced in the waterproof inner sleeve, a good protection effect is achieved on a wire, and the wire can normally work and run.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the insulating block and the insulating shell are arranged, and due to the design of the insulating shell, the insulating protection can be carried out between the outer shell and the waterproof inner sleeve, so that a user or an electric power person can have good safety guarantee when contacting the cable, and a primary insulating effect is achieved.

2. According to the utility model, by arranging the waterproof inner sleeve and the waterproof sleeve, due to the design of the waterproof inner sleeve, primary waterproofing can be carried out from the inner part of the outer layer of the cable, so that the moisture in the external environment is effectively prevented from entering, and due to the design of the waterproof sleeve, the waterproof effect in the waterproof inner sleeve is enhanced, the secondary waterproofing effect is achieved, the good operation environment of the wire is ensured, and through the matching between the waterproof inner sleeve and the waterproof sleeve, waterproofing can be carried out from the inner layer and the outer layer of the cable, so that the waterproof performance of the cable is improved.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the top of the present invention;

fig. 3 is a schematic sectional view of the front surface of the present invention.

In the figure: 1. a housing; 2. a waterproof inner sleeve; 3. an insulating block; 4. an insulating case; 5. a waterproof jacket; 6. an insulating sleeve body; 7. a wire; 8. and (3) a filling material.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, the present invention provides a cable with double insulating outer layers, which includes an outer shell 1, a waterproof inner sleeve 2 fixedly installed inside the outer shell 1, insulating shells 4 fixedly installed inside the outer surface of the waterproof inner sleeve 2 and located on both sides of the outer surface of the waterproof inner sleeve 2, insulating blocks 3 fixedly installed inside the waterproof inner sleeve 2, a waterproof sleeve 5 fixedly installed inside the waterproof inner sleeve 2 and located between the insulating blocks 3, an insulating sleeve body 6 fixedly installed inside the waterproof sleeve 5, and a lead 7 fixedly installed inside the insulating sleeve body 6.

Wherein, the quantity of collets 3 is three, and the equal fixed mounting in three collets 3 has stopping 8, because stopping 8's design, will strengthen collets 3 and the inside intensity of waterproof endotheca 2 for the slightly sunken condition can not take place for the inside of waterproof endotheca 2 and collets 3.

Wherein, insulating casing 4's quantity is two, and two insulating casing 4's appearance all presents for the arc, and two insulating casing 4 all adopt polypropylene to make, and polypropylene has good chemical resistance, heat resistance, electrical insulation, high strength mechanical properties and good high wear resistance processing property etc. to can play preliminary insulating effect in the surface of this cable.

Wherein, the surface of collets 3 and the surface fixed connection of waterproof cover 5, the radian of collets 3 surface is the same with the radian of waterproof cover 5 surface, collets 3 adopt the polyethylene to make, and the polyethylene has good low temperature resistance ability, chemical stability is good, the hydroscopicity is little and electrical insulation is good, thereby can strengthen the inside insulating effect of waterproof endotheca 2, through the cooperation between collets 3 and insulating casing 4, will make the outer insulating properties of this cable obtain apparent promotion, electric power personnel's operation safety has effectively been ensured.

Wherein, the both sides of waterproof endotheca 2 surface all with the internal surface fixed connection of insulating shell 4, waterproof endotheca 2 adopts butyl rubber to make, and butyl rubber has good chemical stability and thermal stability, and the most outstanding is gas tightness and water proofness to effectual outside moisture of having avoided gets into the inside of waterproof endotheca 2, played good preliminary water-proof effects.

Wherein, the quantity of waterproof cover 5 is three, and three waterproof cover 5's size is the same, and three waterproof cover 5 all adopts polyurethane to make, and polyurethane has good chemical resistance, resilience, mechanical properties and waterproof nature, consequently can play the effect of strengthening waterproof effect in waterproof endotheca 2's inside, has reached good protecting effect to wire 7, makes its work operation that can be normal.

The working principle and the using process of the utility model are as follows:

because the design of two insulating casings 4 will carry out preliminary insulation protection from the inside in this cable outside for user or electric power personnel touch, have good safety guarantee, and because the design of collets 3, will carry out secondary insulation protection from the inside of waterproof endotheca 2, effectively avoid taking place the condition of electric leakage, through the cooperation between collets 3 and insulating casing 4, will promote the holistic insulating properties of this cable.

And because the design of waterproof endotheca 2, will follow the outer inside of cable and waterproof, and then reached preliminary waterproof effect, the effectual moisture that avoids under the external environment gets into, and because the design of waterproof cover 5, will carry out the secondary waterproof effect from the inside of waterproof endotheca 2, the normal operating of giving wire 7 provides good environment, and through the cooperation between waterproof endotheca 2 and the waterproof cover 5, will follow the ectonexine of this cable and waterproof, the waterproof performance of this cable has been improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A double-insulated outer-layer cable comprising a housing (1), characterized in that: the utility model discloses a waterproof insulation structure, including shell (1), inside fixed mounting of shell (1) has waterproof endotheca (2), the inside fixed mounting of shell (1) has insulating casing (4) that are located waterproof endotheca (2) surface both sides, the inside fixed mounting of waterproof endotheca (2) has insulating block (3), the inside fixed mounting of waterproof endotheca (2) has waterproof cover (5) that are located between insulating block (3), the inside fixed mounting of waterproof cover (5) has insulating cover body (6), the inside fixed mounting of insulating cover body (6) has wire (7).

2. A double insulated outer layer cable according to claim 1, wherein: the number of the insulating blocks (3) is three, and the filling materials (8) are fixedly arranged in the three insulating blocks (3).

3. A double insulated outer layer cable according to claim 1, wherein: the number of the insulation shells (4) is two, the appearance of each of the two insulation shells (4) is arc-shaped, and the two insulation shells (4) are made of polypropylene.

4. A double insulated outer layer cable according to claim 1, wherein: the outer surface of the insulating block (3) is fixedly connected with the outer surface of the waterproof sleeve (5), and the radian of the outer surface of the insulating block (3) is identical to that of the outer surface of the waterproof sleeve (5).

5. A double insulated outer layer cable according to claim 1, wherein: both sides of the outer surface of the waterproof inner sleeve (2) are fixedly connected with the inner surface of the insulating shell (4), and the waterproof inner sleeve (2) is made of butyl rubber.

6. A double insulated outer layer cable according to claim 1, wherein: the number of the waterproof sleeves (5) is three, the size of each waterproof sleeve (5) is the same, and the three waterproof sleeves (5) are made of polyurethane.