CN214705474U

CN214705474U - Power cable convenient to fixed point detects

Info

Publication number: CN214705474U
Application number: CN202121132283.7U
Authority: CN
Inventors: 韩清超; 陈德浪; 张怀冰
Original assignee: Anhui Guotong Electric Power Construction Co ltd
Current assignee: Anhui Guotong Electric Power Construction Co ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-11-12
Anticipated expiration: 2031-05-25

Abstract

The utility model relates to a power cable technical field discloses a power cable convenient to fixed point detects, including cable body and locating component, set gradually wired core subassembly, buffering subassembly and outer guard assembly by interior outside to in the cable body, the core subassembly includes electrically conductive heart yearn, wrinkle aluminium separation sleeve and alkali-free glass fiber band, the buffering subassembly includes flexible silica gel cover and through-hole, outer guard assembly is including the gauze that blocks water and polyethylene sheath, the spacer sleeve is equipped with a plurality of on the lateral wall of cable body locating component, locating component all includes that rubber clamping jaw, breach, boss, ladder lead to groove and interior screwed pipe. The utility model discloses not only having improved insulation, antidetonation and waterproof performance of cable body greatly, effectively prolonging its life, being convenient for moreover with rubber clamp claw cup joint the appointed locus on the cable body, then the detecting element such as ann inserts the wattmeter, can realize real-time fixed point and sustainable electric leakage detection function.

Description

Power cable convenient to fixed point detects

Technical Field

The utility model relates to a power cable technical field specifically is a power cable convenient to fixed point detects.

Background

In an electric power system, various electrical devices need to realize power transmission and distribution of corresponding voltage grades through cables with corresponding specifications. The existing power cable generally comprises a wire core and a plurality of layers of sheaths, the material characteristics of the sheaths generally comprise insulation, water resistance, flame retardance, shock resistance, wear resistance and the like, but in actual production, the material selection of the sheaths is generally single, so that after a certain layer is broken, the corresponding protection function is greatly reduced; in addition, in various electrical faults or accidents, the electrical faults or accidents are mostly caused by cable leakage, wherein trace leakage can cause the voltage rise of the power supply and distribution tail end, the normal use of electrical equipment is influenced, and dangerous accidents such as cable short circuit and melt damage can be caused along with the increase of leakage.

Accordingly, one skilled in the art provides a power cable that facilitates fixed-point detection to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power cable convenient to fixed point detects 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:

the utility model provides a power cable convenient to fixed point detects, includes cable body and locating component, set gradually cable core subassembly, buffering subassembly and outer protective assembly in the cable body by inside to outside, the cable core subassembly includes electrically conductive heart yearn, wrinkle aluminium isolation sleeve and alkali-free glass fiber area, buffering subassembly includes flexible silica gel cover and through-hole, outer protective assembly is including the gauze that blocks water and polyethylene sheath, the spacer sleeve is equipped with a plurality of on the lateral wall of cable body locating component, locating component all includes that rubber clamping jaw, breach, boss, ladder lead to groove and interior screwed pipe.

As a further aspect of the present invention: the outer side wall of the conductive core wire is wrapped with the corrugated aluminum isolation sleeve, and the outer side wall of the corrugated aluminum isolation sleeve is uniformly wound with the alkali-free glass fiber belt for forming a tightly attached double-layer insulation structure.

As a further aspect of the present invention: the flexible silica gel cover wrap up in on the lateral wall of alkali-free glass fiber band, a plurality of has been seted up to the inside equal angle of flexible silica gel cover the through-hole, just the through-hole all is oval structure for reserve great elastic deformation space, thereby promote buffering protection effect, the inside of through-hole all is filled has the powder that blocks water, utilizes its water swelling's characteristic to block outside intaking.

As a further aspect of the present invention: the waterproof gauze is wound on the outer side wall of the flexible silica gel sleeve, and the outer side wall of the waterproof gauze is wrapped with the polyethylene sheath and used for forming a double-layer waterproof and anticorrosive structure.

As a further aspect of the present invention: the rubber clamping jaw is of a C-shaped structure, the rubber clamping jaw is sleeved on the outer side wall of the polyethylene sheath, the notches are symmetrically formed in the inner side wall of the opening of the rubber clamping jaw, and the rubber clamping jaw is convenient to manually open and convenient to disassemble and assemble fixed points on the cable body.

As a further aspect of the present invention: all be provided with on the lateral wall at rubber clamping jaw middle part the boss, two have been seted up to the all symmetry in inside of boss the ladder leads to the groove, the inside that the groove was led to the ladder all axial is inlayed and is had interior solenoid is convenient for the location dismouting of interior solenoid, the bottom of interior solenoid all with the inside wall coplane of rubber clamping jaw is used for with the lateral wall of polyethylene sheath agrees with each other, avoids the fish tail.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the corrugated aluminum isolation sleeve and the alkali-free glass fiber belt form a tightly-attached double-layer insulation structure on the outer side of the conductive core wire, the flexible silica gel sleeve with the through hole forms buffer protection on the core wire assembly, and the polyethylene sheath, the water-blocking yarn belt and the water-blocking powder filled in the through hole form a three-layer waterproof and anticorrosive structure, so that the insulation, shock resistance and waterproof performances of the cable body are greatly improved, and the service life of the cable body is effectively prolonged;

2. the rubber clamping jaw of the C-shaped structure is broken off through the notch and sleeved on the designated site on the cable body, and then detection units such as a power meter and the like are inserted into the detachable inner screwed pipe, so that the real-time fixed-point electric leakage detection function can be realized.

Drawings

FIG. 1 is a schematic perspective view of a power cable for facilitating fixed point detection;

FIG. 2 is an enlarged cross-sectional view of a cable body of a power cable for facilitating fixed-point detection;

fig. 3 is a schematic diagram of a partially exploded structure of a positioning assembly in a power cable for facilitating fixed-point detection.

In the figure: 1. a cable body; 2. a wire core assembly; 201. a conductive core wire; 202. corrugated aluminum spacer sleeves; 203. alkali-free glass fiber tape; 3. a buffer assembly; 301. a flexible silica gel sleeve; 302. a through hole; 4. an outer shield assembly; 401. a water-blocking tape; 402. a polyethylene jacket; 5. a positioning assembly; 501. a rubber jaw; 502. a notch; 503. a boss; 504. a stepped through groove; 505. an inner solenoid.

Detailed Description

Please refer to fig. 1-3, in an embodiment of the present invention, a power cable convenient for fixed point detection, including cable body 1 and locating component 5, cable body 1 sets gradually cable core subassembly 2 from inside to outside, buffer assembly 3 and outer protecting component 4, cable core subassembly 2 includes electrically conductive heart yearn 201, wrinkle aluminium spacer 202 and alkali-free glass fiber tape 203, buffer assembly 3 includes flexible silica gel cover 301 and through-hole 302, outer protecting component 4 is including the gauze 401 and the polyethylene sheath 402 that block water, the spacer sleeve is equipped with a plurality of locating component 5 on the lateral wall of cable body 1, locating component 5 all includes rubber clamping jaw 501, breach 502, boss 503, ladder leads to groove 504 and interior screwed pipe 505.

In fig. 1 and 2: the outer side wall of the conductive core wire 201 is wrapped with a corrugated aluminum isolation sleeve 202, and the outer side wall of the corrugated aluminum isolation sleeve 202 is uniformly wound with an alkali-free glass fiber tape 203 for forming a tightly attached double-layer insulation structure; the flexible silica gel sleeve 301 is wrapped on the outer side wall of the alkali-free glass fiber belt 203, eighteen through holes 302 are formed in the flexible silica gel sleeve 301 at equal angles, the through holes 302 are all in an oval structure and used for reserving a large elastic deformation space, so that the buffering protection effect is improved, water blocking powder is filled in the through holes 302, and external water inflow is blocked by utilizing the water absorption expansion characteristic of the water blocking powder; the water-blocking gauze 401 is wound on the outer side wall of the flexible silica gel sleeve 301, and the outer side wall of the water-blocking gauze 401 is wrapped with the polyethylene sheath 402 for forming a double-layer waterproof and anticorrosive structure.

In fig. 1 and 3: the rubber clamping jaws 501 are all in a C-shaped structure, the rubber clamping jaws 501 are all sleeved on the outer side wall of the polyethylene sheath 402, notches 502 are symmetrically formed in the inner side wall of the opening of the rubber clamping jaw 501, and therefore the rubber clamping jaws 501 can be conveniently opened manually, and can be conveniently detached and installed at fixed points on the cable body 1; all be provided with boss 503 on the lateral wall at rubber clamping jaw 501 middle part, two ladder through grooves 504 have all been seted up to boss 503's inside all symmetry, and the inside that ladder through groove 504 all is inlayed axially and is had interior screwed pipe 505, the location dismouting of interior screwed pipe 505 of being convenient for, the bottom of interior screwed pipe 505 all with the inside wall coplane of rubber clamping jaw 501 for agree with the lateral wall of polyethylene sheath 402 each other, avoid the fish tail.

The utility model discloses a theory of operation is: firstly, a tightly-attached double-layer insulation structure is formed on the outer side of a conductive core wire 201 through a corrugated aluminum isolation sleeve 202 and an alkali-free glass fiber tape 203, then buffer protection is formed on the core wire assembly 2 through a flexible silica gel sleeve 301, eighteen through holes 302 with oval structures are formed in the flexible silica gel sleeve 301 at equal angles, a large elastic deformation space is reserved, the buffer protection effect can be improved to a certain extent, and then a three-layer waterproof and anticorrosion structure is formed through a polyethylene sheath 402, a water-blocking yarn tape 401 and water-blocking powder filled in the through holes 302, so that the insulation, anti-seismic and waterproof performances of a cable body 1 are greatly improved, and the service life of the cable body is effectively prolonged; after the cable body 1 is laid, the rubber clamping jaws 501 of the C-shaped structures are sleeved at the designated positions on the cable body 1 at intervals through the notches 502, and then detection units such as power meters are inserted into the detachable inner solenoid 505, so that a real-time fixed-point and sustainable electric leakage detection function can be realized, and frequent detection work is not required to be manually carried out.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A power cable convenient for fixed-point detection comprises a cable body (1) and a positioning component (5), it is characterized in that the cable body (1) is internally and sequentially provided with a wire core component (2), a buffer component (3) and an outer protection component (4) from inside to outside, the wire core component (2) comprises a conductive core wire (201), a corrugated aluminum isolation sleeve (202) and an alkali-free glass fiber tape (203), the buffer component (3) comprises a flexible silica gel sleeve (301) and a through hole (302), the outer protective component (4) comprises a water-blocking yarn belt (401) and a polyethylene sheath (402), a plurality of positioning components (5) are sleeved on the outer side wall of the cable body (1) at intervals, the positioning assemblies (5) respectively comprise a rubber clamping jaw (501), a notch (502), a boss (503), a stepped through groove (504) and an inner solenoid (505).

2. The power cable convenient for spot detection according to claim 1, wherein the outer sidewall of the conductive core wire (201) is wrapped with the corrugated aluminum isolation sleeve (202), and the outer sidewall of the corrugated aluminum isolation sleeve (202) is uniformly wrapped with the alkali-free glass fiber tape (203).

3. The power cable convenient to fixed point detection according to claim 1, wherein the flexible silica gel sleeve (301) is wrapped on the outer side wall of the alkali-free glass fiber tape (203), a plurality of through holes (302) are formed in the flexible silica gel sleeve (301) at equal angles, the through holes (302) are all in an oval structure, and water blocking powder is filled in the through holes (302).

4. The power cable convenient for fixed-point detection according to claim 1, wherein the water-blocking gauze (401) is wound on the outer side wall of the flexible silicone sleeve (301), and the outer side wall of the water-blocking gauze (401) is wrapped with the polyethylene sheath (402).

5. The power cable convenient for fixed-point detection according to claim 1, wherein the rubber clamping jaws (501) are all in a C-shaped structure, the rubber clamping jaws (501) are all sleeved on the outer side wall of the polyethylene sheath (402), and the inner side wall of the opening of the rubber clamping jaw (501) is symmetrically provided with the notches (502).

6. The power cable convenient for fixed point detection according to claim 1, wherein the bosses (503) are disposed on outer side walls of the middle portion of the rubber clamping jaw (501), two stepped through grooves (504) are symmetrically formed inside the bosses (503), the inner threaded pipes (505) are axially embedded inside the stepped through grooves (504), and bottom ends of the inner threaded pipes (505) are coplanar with inner side walls of the rubber clamping jaw (501).