CN212907219U

CN212907219U - 750KV crosslinked polyethylene insulated single-core power cable for protecting surface

Info

Publication number: CN212907219U
Application number: CN202022064182.2U
Authority: CN
Inventors: 杨春贵; 刘凤梅; 赵明祥; 杨俊驿
Original assignee: Kunming Kunbao Wire & Cable Manufacturing Co ltd
Current assignee: Kunming Kunbao Wire & Cable Manufacturing Co ltd
Priority date: 2020-09-19
Filing date: 2020-09-19
Publication date: 2021-04-06
Anticipated expiration: 2030-09-19

Abstract

The utility model discloses an insulating single core power cable of 750KV crosslinked polyethylene to skin protection, which comprises a cable, the outer wall winding of cable is connected with the resistance wire, and the waterproof circle of outer wall fixedly connected with of resistance wire to the outer wall bonding of waterproof circle has damping spring, damping spring's top fixedly connected with PE insulating ring. This 750KV crosslinked polyethylene insulation single core power cable to skin protection, the outside resistance wire of cable carries out the obstruction of electric power to inside when using, and then prevent inside electric leakage, the waterproof circle in the resistance wire outside is the butyl rubber material, prevent that steam from getting into and leading to the short circuit, damping spring cushions the striking when the cable meets the striking distortion, the silica gel marble resumes distortion deformation, and then has alleviateed the influence to inside cable, the anticorrosive wearing layer adopts the PC material, and then heat-resisting shock-resistant and anti-oxidant, wear-resisting corrosion resistance to whole has promoted, thereby the protective effect of cable has been increased.

Description

750KV crosslinked polyethylene insulated single-core power cable for protecting surface

Technical Field

The utility model relates to the technical field of cables, specifically be an insulating single core power cable of 750KV crosslinked polyethylene to skin protection.

Background

The cable is an electric energy or signal transmission device, usually comprises several or several groups of wire, wherein 750KV crosslinked polyethylene insulating single core power cable's use is comparatively extensive, but current protection cable still has certain defect, just as:

1. the protection effect of the existing protection cable is not good, so that the later maintenance cost is increased, the condition that the cable is corroded and damaged is increased, and the service life of the cable is reduced.

2. The external connection of cable is inconvenient to carry out to current protection cable, and then has increased the degree of difficulty of cable connection to user's work efficiency has been reduced.

In order to solve the problems, innovative design is urgently needed on the basis of the original protective cable structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a 750KV crosslinked polyethylene insulation single core power cable to the protection effect who provides in solving above-mentioned background art is not good, and inconvenient external connection's of carrying on the cable problem.

In order to achieve the above object, the utility model provides a following technical scheme: a750 KV crosslinked polyethylene insulated single-core power cable for protecting a surface comprises a cable, the outer wall of the cable is wound and connected with a resistance wire, the outer wall of the resistance wire is fixedly connected with a waterproof ring, and the outer wall of the waterproof ring is bonded with a damping spring, the top end of the damping spring is fixedly connected with a PE insulating ring, and the outer wall of the PE insulating ring is fixedly provided with a silica gel marble, the outer wall of the silica gel marble is fixedly connected with an anti-corrosion wear-resistant layer, the outer wall of the anti-corrosion wear-resistant layer is sleeved with a fixed cylinder, an elastic clamping block is fixedly connected on the right side of the fixed cylinder, a connecting cylinder is fixedly arranged on the outer wall of the anticorrosion wear-resistant layer, a clamping cylinder is bonded on the left side of the connecting cylinder, and the outer wall of the right side of the buckle barrel is provided with a clamping hole, the outer wall of the anti-corrosion wear-resistant layer is fixedly provided with an internal thread barrel, and the outer wall of the anti-corrosion wear-resistant layer is movably connected with an external thread cylinder, and a moving hole is reserved on the left side of the external thread cylinder.

Preferably, the waterproof ring forms an elastic structure with the inner wall of the PE insulating ring through a damping spring, and two ends of the damping spring are fixedly connected with the outer wall of the waterproof ring and the inner wall of the PE insulating ring respectively.

Preferably, the PE insulating ring forms an elastic structure through the inner wall of silica gel marble and the anticorrosive wear-resistant layer, and the outer wall of silica gel marble is fixedly connected with the inner wall of the anticorrosive wear-resistant layer.

Preferably, the anticorrosion wear-resistant layer forms a thread structure through the inner wall of an external thread section of thick bamboo and an internal thread section of thick bamboo, and the outer wall threaded connection of the inner wall of an external thread section of thick bamboo and an internal thread section of thick bamboo.

Preferably, the elastic clamping block forms a clamping structure with the inner wall of the clamping cylinder through the clamping hole, and the outer wall of the elastic clamping block is attached to the inner wall of the clamping hole.

Preferably, the outer thread cylinder forms a moving structure through the moving hole and the outer wall of the anti-corrosion wear-resistant layer, and the inner wall of the moving hole is attached to the outer wall of the anti-corrosion wear-resistant layer.

Compared with the prior art, the beneficial effects of the utility model are that: the 750KV crosslinked polyethylene insulated single-core power cable for protecting the surface;

1. the cable is provided with an anti-corrosion waterproof elastic ring layer, when the cable is used, a resistance wire outside the cable blocks the inside of the cable, so that internal electric leakage is prevented, a waterproof ring outside the resistance wire is made of butyl rubber, water vapor is prevented from entering the cable to cause short circuit, a damping spring buffers impact when the cable is twisted due to impact, and a silica gel marble recovers torsional deformation, so that the influence on the internal cable is reduced;

2. but be provided with a connection buckle section of thick bamboo, cable internal connection back, when externally connecting, in the buckle of an elasticity fixture block card in going into a buckle section of thick bamboo on the fixed section of thick bamboo, carry out the outer wall one deck to the cable and fix, remove an external screw thread section of thick bamboo to an internal thread section of thick bamboo through removing the hole at the cable outside again, carry out the screw thread with an internal thread section of thick bamboo and twist with an external screw thread section of thick bamboo and close, and then carry out two layers to the cable and fix to the wall connection of.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;

FIG. 2 is a schematic side sectional view of the elastic clamping block of the present invention;

FIG. 3 is a schematic side sectional view of the internal thread cylinder of the present invention;

fig. 4 is a schematic side sectional view of the bayonet hole of the present invention.

In the figure: 1. a cable; 2. a resistance wire; 3. a waterproof ring; 4. a damping spring; 5. a PE insulating ring; 6. silica gel marble; 7. an anti-corrosion wear-resistant layer; 8. a fixed cylinder; 9. an elastic clamping block; 10. a connecting cylinder; 11. a buckle barrel; 12. a clamping hole; 13. an internal threaded barrel; 14. an externally threaded barrel; 15. the hole is moved.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a750 KV crosslinked polyethylene insulation single-core power cable for protecting a surface comprises a cable 1, a resistance wire 2, a waterproof ring 3, a damping spring 4, a PE insulation ring 5, a silica gel marble 6, an anticorrosion wear-resistant layer 7, a fixed cylinder 8, an elastic clamping block 9, a connecting cylinder 10, a buckle cylinder 11, a clamping hole 12, an internal thread cylinder 13, an external thread cylinder 14 and a moving hole 15, wherein the resistance wire 2 is wound on the outer wall of the cable 1, the waterproof ring 3 is fixedly connected to the outer wall of the resistance wire 2, the damping spring 4 is bonded to the outer wall of the waterproof ring 3, the PE insulation ring 5 is fixedly connected to the top end of the damping spring 4, the silica gel marble 6 is fixedly installed on the outer wall of the PE insulation ring 5, the anticorrosion wear-resistant layer 7 is fixedly connected to the outer wall of the silica gel marble 6, the fixing cylinder 8 is sleeved on the outer wall of the anticorrosion wear-resistant layer 7, the elastic clamping block 9 is fixedly connected to the right side of the fixed, and the left side of connecting cylinder 10 bonds and has a buckle section of thick bamboo 11 to a card hole 12 has been seted up to the right side outer wall of a buckle section of thick bamboo 11, and the outer wall fixed mounting of anticorrosive wearing layer 7 has an internal thread section of thick bamboo 13, and the outer wall swing joint of anticorrosive wearing layer 7 has an external screw thread section of thick bamboo 14, and the left side of an external screw thread section of thick bamboo 14 is reserved has removal hole 15.

The waterproof ring 3 and the inner wall of the PE insulating ring 5 form an elastic structure through the damping spring 4, two ends of the damping spring 4 are fixedly connected with the outer wall of the waterproof ring 3 and the inner wall of the PE insulating ring 5 respectively, and the damping spring 4 is arranged to reduce the impact force on the inside when the cable is impacted;

the PE insulating ring 5 is of an elastic structure formed by the silica gel marble 6 and the inner wall of the anticorrosion wear-resistant layer 7, the outer wall of the silica gel marble 6 is fixedly connected with the inner wall of the anticorrosion wear-resistant layer 7, and the silica gel marble 6 is fixed between the anticorrosion wear-resistant layer 7 and the PE insulating ring 5, so that the deformation of the cable can be recovered when the cable is twisted;

the anticorrosion wear-resistant layer 7 forms a thread structure with the inner wall of the internal thread cylinder 13 through the external thread cylinder 14, the inner wall of the external thread cylinder 14 is in threaded connection with the outer wall of the internal thread cylinder 13, and the internal thread cylinder 13 is screwed with the external thread cylinder 14, so that the connection of the outer wall of the cable is facilitated;

the elastic clamping block 9 and the inner wall of the clamping barrel 11 form a clamping structure through the clamping hole 12, the outer wall of the elastic clamping block 9 is attached to the inner wall of the clamping hole 12, and the elastic clamping block 9 is clamped with the clamping hole 12 in the clamping barrel 11, so that the outer wall of the cable is conveniently connected, and the two cables are conveniently fixed;

a section of thick bamboo 14 of external screw thread constitutes removal structure through removing hole 15 and anticorrosive wearing layer 7's outer wall, and removes the inner wall in hole 15 and laminates mutually with anticorrosive wearing layer 7's outer wall, removes setting up of hole 15 and has made things convenient for a section of thick bamboo 14 of external screw thread, and then has made things convenient for screwing up of a section of thick bamboo 14 of external screw thread and an internal thread section of thick bamboo 13.

The working principle is as follows: when the 750KV crosslinked polyethylene insulated single-core power cable for protecting the surface is used, according to the graph 1, when the cable is used, the resistance wire 2 outside the cable 1 blocks the electric power inside the cable, so that internal electric leakage is prevented, the waterproof ring 3 outside the resistance wire 2 is made of butyl rubber, so that water vapor is prevented from entering the cable to cause short circuit, when the cable is subjected to impact distortion, the shock absorption spring 4 buffers the impact, the silica gel marble 6 recovers the distortion deformation, so that the influence on the internal cable 1 is reduced, the anticorrosion wear-resistant layer 7 is made of PC material, so that the heat resistance, impact resistance and oxidation resistance are realized, the integral wear resistance and corrosion resistance are improved, and the protection effect of the cable is improved;

according to fig. 2, 3 and 4, after the cable is connected internally, when the cable is connected externally, the elastic clamping block 9 on the fixing barrel 8 is clamped into the buckle of the buckle barrel 11, the cable is fixed by one layer of the outer wall, the external thread barrel 14 is moved to the internal thread barrel 13 through the moving hole 15 at the outside of the cable 1, the external thread barrel 14 and the internal thread barrel 13 are screwed in a threaded manner, and then the cable is fixed in two layers, so that the outer wall connection of the cable is facilitated.

Those not described in detail in this specification are within the skill of the art.

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

Claims

1. The utility model provides a 750KV crosslinked polyethylene insulating single core power cable to skin protection, includes cable (1), its characterized in that: the cable is characterized in that a resistance wire (2) is wound and connected on the outer wall of the cable (1), a waterproof ring (3) is fixedly connected on the outer wall of the resistance wire (2), a damping spring (4) is bonded on the outer wall of the waterproof ring (3), a PE insulating ring (5) is fixedly connected on the top end of the damping spring (4), a silica gel marble (6) is fixedly mounted on the outer wall of the PE insulating ring (5), an anticorrosion wear-resistant layer (7) is fixedly connected on the outer wall of the silica gel marble (6), a fixed cylinder (8) is sleeved on the outer wall of the anticorrosion wear-resistant layer (7), an elastic clamping block (9) is fixedly connected on the right side of the fixed cylinder (8), a connecting cylinder (10) is fixedly mounted on the outer wall of the anticorrosion wear-resistant layer (7), a clamping cylinder (11) is bonded on the left side of the connecting cylinder (10), a clamping hole (12) is formed in the right side of the clamping cylinder (11), and the outer wall of the anti-corrosion wear-resistant layer (7) is movably connected with an external thread cylinder (14), and a moving hole (15) is reserved on the left side of the external thread cylinder (14).

2. A skin protected 750KV crosslinked polyethylene insulated single core power cable according to claim 1, characterized in that: waterproof circle (3) constitute elastic structure through damping spring (4) and the inner wall of PE insulating circle (5), and damping spring (4) both ends respectively with the outer wall of waterproof circle (3) and the inner wall fixed connection of PE insulating circle (5).

3. A skin protected 750KV crosslinked polyethylene insulated single core power cable according to claim 1, characterized in that: PE insulating collar (5) constitute elastic construction through the inner wall of silica gel marble (6) with anticorrosive wearing layer (7), and the outer wall of silica gel marble (6) and the inner wall fixed connection of anticorrosive wearing layer (7).

4. A skin protected 750KV crosslinked polyethylene insulated single core power cable according to claim 1, characterized in that: the anti-corrosion wear-resistant layer (7) forms a thread structure with the inner wall of the internal thread cylinder (13) through the external thread cylinder (14), and the inner wall of the external thread cylinder (14) is in threaded connection with the outer wall of the internal thread cylinder (13).

5. A skin protected 750KV crosslinked polyethylene insulated single core power cable according to claim 1, characterized in that: the elastic clamping block (9) and the inner wall of the clamping cylinder (11) form a clamping structure through the clamping hole (12), and the outer wall of the elastic clamping block (9) is attached to the inner wall of the clamping hole (12).

6. A skin protected 750KV crosslinked polyethylene insulated single core power cable according to claim 1, characterized in that: the outer thread cylinder (14) forms a moving structure through the moving hole (15) and the outer wall of the anti-corrosion wear-resistant layer (7), and the inner wall of the moving hole (15) is attached to the outer wall of the anti-corrosion wear-resistant layer (7).