CN219497408U

CN219497408U - Fracture-preventing power cable

Info

Publication number: CN219497408U
Application number: CN202320658153.XU
Authority: CN
Inventors: 赵林
Original assignee: HEBEI SHITUO ELECTRICAL CO Ltd
Current assignee: HEBEI SHITUO ELECTRICAL CO Ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-08-08
Anticipated expiration: 2033-03-29

Abstract

The utility model discloses an anti-fracture power cable, which comprises an outer protective sleeve, wherein a cable is arranged in the outer protective sleeve, an insulating shielding layer is wrapped outside the cable, an outer layer steel wire woven net is adhered to the inner wall of the outer protective sleeve, an inner protective sleeve is arranged in the outer protective sleeve, an inner layer steel wire woven net is adhered to the inner wall of the inner protective sleeve, a reinforcing sleeve is arranged in the inner protective sleeve, the cable and the insulating shielding layer are positioned in the reinforcing sleeve, an insulating shielding sleeve is arranged between the reinforcing sleeve and the inner layer steel wire woven net, and steel wires are sleeved in the insulating shielding sleeve. The utility model has the beneficial effects of improving corrosion resistance, improving compression resistance, improving stability and reliability of the power cable, prolonging service life, improving tensile strength of the power cable, avoiding fracture in the use process, preventing the power cable from being broken through the steel wire rope when the protective sleeve is broken, and improving safety.

Description

Fracture-preventing power cable

Technical Field

The utility model relates to the technical field of power cables, in particular to an anti-breakage power cable.

Background

The power cable is a cable for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station outgoing lines, power supply in industrial and mining enterprises and power transmission lines under sea water passing through the river, and in the power lines, the proportion of the cable is gradually increasing.

The utility model with the application number of CN202120708063.8 discloses a high-strength fracture-resistant power cable. Through nine rubber tubes and six conductors in the cable, the force can evenly pass through six conductors, then on passing nine rubber tubes again, and the rubber tube can play a buffering and offset a part of effect, through the large-scale rubber tube of cable inside center department, the resistance that makes the force receive can be along with increasing, and then through the elasticity effect of rubber tube, can make the extrusion or the tensile of offset force, after offset effect, memory metal cover can get back to the state of unstressed in the inside arrangement of cable.

The device plays a role in buffering and counteracting through the rubber tube, the power cable is usually used in an external environment, the rubber tube is easy to corrode and damage after long-time use, the power cable is easy to break when bearing larger force, the service life is short, and the use stability and reliability are reduced.

The foregoing is not necessarily a prior art, and falls within the technical scope of the inventors.

Disclosure of Invention

The utility model aims to solve the problems, and designs an anti-fracture power cable.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a prevent cracked power cable, includes outer lag, the inside cable that is equipped with of outer lag, the outside parcel of cable has insulating shield layer, outer lag inner wall bonds there is outer steel wire mesh grid, be equipped with interior lag in the outer lag, interior lag inner wall bonds there is inlayer steel wire mesh grid, interior lag inside is equipped with the reinforcement cover, cable and insulating shield layer are located the reinforcement cover, install insulating shield between reinforcement cover and the inlayer steel wire mesh grid, insulating shield endotheca is equipped with wire rope.

Further, the inner protective sleeve is oval, the upper end and the lower end of the inner protective sleeve are fixedly bonded with the outer layer steel wire woven mesh, a fireproof filler is filled in a gap between the outer layer steel wire woven mesh and the inner protective sleeve, a pressure-resistant ventilation pipe is arranged in the fireproof filler, and the pressure-resistant ventilation pipe is positioned at the left side and the right side of the inner protective sleeve.

Further, the side wall of the reinforcing sleeve is fixedly bonded with the inner layer steel wire woven net, a flame-retardant filler is filled in a gap between the inner layer steel wire woven net and the reinforcing sleeve, and the insulating shielding sleeve is positioned in the flame-retardant filler.

Further, the cables are provided with three cables, the three cables are wrapped with insulating shielding layers, and the reinforcing sleeve is filled with positioning fillers.

Further, the outer layer steel wire woven mesh and the inner layer steel wire woven mesh are made of stainless steel materials.

Compared with the prior art, the technical scheme has the following beneficial effects:

1. the strength of outer lag and interior lag has been improved through outer steel wire mesh grid and inlayer steel wire mesh grid, has improved corrosion-resistant effect, and the fire-resistant filler and the fire-retardant packing of cooperation inside have improved compressive capacity, can absorb pressure through withstand voltage permeability cell, play the effect of buffering, offset the extrusion force, have improved power cable's stability and reliability, have improved life.

2. The tensile capacity of the power cable is improved through the outer layer steel wire woven mesh, the inner layer steel wire woven mesh and the steel wire rope, the phenomenon of fracture in the using process is avoided, when the protective sleeve is broken, the power cable is prevented from being broken through the steel wire rope, and the safety is improved.

Drawings

Fig. 1 is a schematic structural view of a breakage-proof power cable according to the present utility model.

FIG. 2 is a front cross-sectional view of the outer protective sheath.

FIG. 3 is an enlarged cross-sectional view of the inner protective sheath.

In the figure: 1. an outer protective sleeve; 2. a cable; 3. an insulating shielding layer; 4. an outer layer steel wire woven net; 5. an inner protective sleeve; 6. inner layer steel wire woven net; 7. reinforcing the sleeve; 8. an insulating shield; 9. a wire rope; 10. a refractory filler; 11. pressure-resistant ventilation pipe; 12. and (3) flame retardant filler.

Detailed Description

The utility model is described in detail below with reference to the accompanying drawings, as shown in fig. 1-3: the utility model provides a prevent power cable of fracture, includes outer lag 1, the inside cable 2 that is equipped with of outer lag 1, cable 2 outside parcel has insulating shield 3, outer lag 1 inner wall bonds there is outer steel wire mesh grid 4, be equipped with interior lag 5 in the outer lag 1, interior lag 5 inner wall bonds there is inlayer steel wire mesh grid 6, interior lag 5 is inside to be equipped with consolidates cover 7, cable 2 and insulating shield 3 are located consolidates cover 7, install insulating shield 8 between reinforcement cover 7 and the inlayer steel wire mesh grid 6, insulating shield 8 endotheca is equipped with wire rope 9; the inner protective sleeve 5 is elliptical, the upper end and the lower end of the inner protective sleeve 5 are fixedly bonded with the outer layer steel wire woven mesh 4, a fireproof filler 10 is filled in a gap between the outer layer steel wire woven mesh 4 and the inner protective sleeve 5, a pressure-resistant gas-permeable pipe 11 is arranged in the fireproof filler 10, and the pressure-resistant gas-permeable pipe 11 is positioned at the left side and the right side of the inner protective sleeve 5; the side wall of the reinforcing sleeve 7 is fixedly bonded with the inner layer steel wire woven net 6, a gap between the inner layer steel wire woven net 6 and the reinforcing sleeve 7 is filled with flame-retardant filler 12, and the insulating shielding sleeve 8 is positioned in the flame-retardant filler 12; three cables 2 are arranged, the three cables 2 are wrapped with insulating shielding layers 3, and positioning fillers are filled in the reinforcing sleeves 7; the outer layer steel wire woven mesh 4 and the inner layer steel wire woven mesh 6 are made of stainless steel materials.

The working principle of the embodiment is as follows: when the power cable is extruded, an outer layer steel wire woven net 4 is adhered to the inner wall of the outer protective sleeve 1, an inner protective sleeve 5 is arranged in the outer protective sleeve 1, an inner layer steel wire woven net 6 is adhered to the inner wall of the inner protective sleeve 5, the inner protective sleeve 5 is elliptical, the upper end and the lower end of the inner protective sleeve 5 are fixedly adhered to the outer layer steel wire woven net 4, a fireproof filler 10 is filled in a gap between the outer layer steel wire woven net 4 and the inner protective sleeve 5, a pressure-resistant permeability pipe 11 is arranged in the fireproof filler 10, the pressure-resistant permeability pipe 11 is positioned on the left side and the right side of the inner protective sleeve 5, the side wall of the reinforcing sleeve 7 is fixedly adhered to the inner layer steel wire woven net 6, a flame-retardant filler 12 is filled in a gap between the inner layer steel wire woven net 6 and the reinforcing sleeve 7, the insulating protective sleeve 8 is positioned in the flame-retardant filler 12, the strength of the outer protective sleeve 1 and the inner protective sleeve 5 is improved through the outer layer steel wire woven net 4 and the inner layer steel wire woven net 6, the fireproof filler 10 and the flame-retardant filler 12 are matched, so that the compression resistance capability of the power cable is improved, when the pressure applied to the power cable is high, the pressure-resistant permeability of the fireproof filler 11 is generated, the pressure-resistant filler 11 can be absorbed, the pressure-resistant filler 11 can be generated, the pressure-resistant filler 11 can be used for absorbing the pressure-resistant compression resistance and the power cable can be improved, and the pressure-resistant stability can be improved, and the deformation resistance can be used;

the inside reinforcement cover 7 that is equipped with of interior lag 5, cable 2 and insulating shield layer 3 are located reinforcement cover 7, install insulating shield cover 8 between reinforcement cover 7 and the inlayer steel wire mesh grid 6, insulating shield cover 8 endotheca is equipped with wire rope 9, the tensile ability of power cable has been improved through outer steel wire mesh grid 4, inlayer steel wire mesh grid 6, wire rope 9, avoid taking place cracked phenomenon in the use, when the lag fracture, can prevent that power cable from breaking completely through wire rope 9, the security has been improved.

The above technical solution only represents the preferred technical solution of the present utility model, and some changes that may be made by those skilled in the art to some parts of the technical solution represent the principles of the present utility model, and the technical solution falls within the scope of the present utility model.

Claims

1. The utility model provides a prevent cracked power cable, includes outer lag (1), the inside cable (2) that is equipped with of outer lag (1), cable (2) outside parcel has insulating shield (3), a serial communication port, outer lag (1) inner wall bonding has outer steel wire mesh grid (4), be equipped with interior lag (5) in outer lag (1), interior lag (5) inner wall bonding has inlayer steel wire mesh grid (6), interior lag (5) inside is equipped with consolidates cover (7), cable (2) and insulating shield (3) are located consolidates cover (7), consolidate and install insulating shield (8) between cover (7) and the inlayer steel wire mesh grid (6), insulating shield (8) endotheca is equipped with wire rope (9).

2. The fracture-preventing power cable according to claim 1, wherein the inner protective sleeve (5) is elliptical, the upper end and the lower end of the inner protective sleeve (5) are fixedly bonded with the outer layer steel wire woven mesh (4), a fireproof filler (10) is filled in a gap between the outer layer steel wire woven mesh (4) and the inner protective sleeve (5), a pressure-resistant gas-permeable pipe (11) is arranged in the fireproof filler (10), and the pressure-resistant gas-permeable pipe (11) is positioned on the left side and the right side of the inner protective sleeve (5).

3. The breakage-proof power cable according to claim 1, wherein the side wall of the reinforcing sleeve (7) is fixedly bonded with the inner layer steel wire woven mesh (6), a gap between the inner layer steel wire woven mesh (6) and the reinforcing sleeve (7) is filled with flame retardant filler (12), and the insulating shielding sleeve (8) is positioned in the flame retardant filler (12).

4. The anti-fracture power cable according to claim 1, wherein three cables (2) are provided, the three cables (2) are all wrapped with insulating shielding layers (3), and the reinforcing sleeve (7) is filled with positioning filler.

5. A breakage-proof power cable as claimed in claim 1, characterized in that the outer layer wire mesh grid (4) and the inner layer wire mesh grid (6) are made of stainless steel material.