CN217035171U

CN217035171U - Low pressure copper core cable that fire proofness is good

Info

Publication number: CN217035171U
Application number: CN202220485653.3U
Authority: CN
Inventors: 赖海军; 周培弟; 周佩珍
Original assignee: Hunan Jinlan Electrician Technology Co ltd
Current assignee: Hunan Jinlan Electrician Technology Co ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-07-22
Anticipated expiration: 2032-03-08

Abstract

The utility model discloses a low-voltage copper core cable with good fire resistance, which comprises a cable main body, wherein the cable main body comprises a corrosion-resistant layer, a high-temperature-resistant layer, a waterproof layer, an inner liner layer, a filling layer, an insulating layer and a copper core, the insulating layer is arranged on the annular side surface of the copper core, the inner liner layer is arranged on the outer side of the insulating layer, the filling layer is arranged in the inner liner layer, the outer surface of the insulating layer is attached to the filling layer, the waterproof layer is arranged on the outer side of the inner liner layer, the high-temperature-resistant layer is arranged on the annular side surface of the waterproof layer, and the corrosion-resistant layer is arranged on the annular side surface of the high-temperature-resistant layer. The utility model can not only facilitate the transmission of electric power or telecommunication through the design of the copper core, but also avoid the influence of the external high-temperature environment on the copper core and the insulating rubber in the cable main body through the design of the high-temperature resistant layer so as to influence the normal use of the cable main body, and can facilitate the connection and the use of the two cable main bodies through the first support ring and the second support ring.

Description

Low pressure copper core cable that fire proofness is good

Technical Field

The utility model relates to the technical field of copper-core cables, in particular to a low-voltage copper-core cable with good fire resistance.

Background

The cable is a conductor covered with an insulating layer (7), a protective layer, a shielding layer and the like for transmitting power or signal current and signal voltage, and can be divided into a high-voltage cable and a low-voltage cable according to voltage, and the low-voltage cable line is difficult to lay and maintain compared with a low-voltage overhead line and a low-voltage overhead insulated line, but is widely applied to a low-voltage power distribution system because the low-voltage cable line has the characteristics of reliable operation, no pole standing, no land occupation, no influence on the appearance, less influence by the outside and the like.

The low pressure copper core cable that uses at present has certain defect, and low pressure copper core cable fire behavior is not good, causes the cable main part to produce the burning phenomenon because of high temperature environment easily when using, and then has reduced the practicality of cable main part, consequently, provides a low pressure copper core cable that fire proofness is good and seems very necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a low-voltage copper core cable with good fire resistance.

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

the utility model provides a low pressure copper core cable that fire resistance is good, includes the cable main part, the cable main part includes corrosion resistant layer, high temperature resistant layer, waterproof layer, inner liner, filling layer, insulating layer and copper core, be provided with the insulating layer on the copper core annular side, the insulating layer outside is provided with the inner liner, and the inside filling layer that is provided with of inner liner, the insulating layer surface laminates with the filling layer mutually, the inner liner outside is provided with the waterproof layer, be provided with high temperature resistant layer on the waterproof layer annular side, be provided with the corrosion resistant layer on the high temperature resistant layer annular side.

Further, the corrosion-resistant layer is made of polytetrafluoroethylene, and the high-temperature-resistant layer is made of an asbestos net.

Furthermore, the waterproof layer is made of butyl rubber, the filling layer is made of glass fiber yarns, and the insulating layer is made of insulating rubber.

Furthermore, the number of the cable main bodies is two, one of the two cable main bodies is fixedly provided with a first supporting ring at the rear end of the annular side face of the cable main body, the other cable main body is fixedly provided with a second supporting ring at the front end of the annular side face of the cable main body, and the rear end of the first supporting ring is attached to the front end of the second supporting ring.

Furthermore, four square rods are uniformly and fixedly installed at the front end of the second support ring, the front end of each square rod penetrates through the first support ring, four square through holes are uniformly formed in the front end of the first support ring, and the square rods are inserted into the square through holes.

Furthermore, rectangular channels are symmetrically formed in the left end and the right end of the square rod, and springs are fixedly mounted inside the rectangular channels.

Furthermore, the other end of the spring is fixedly provided with an inclined block, and the other end of the inclined block extends to the outer side of the rectangular groove and is attached to the front end of the support ring.

The utility model has the beneficial effects that:

1. design through the copper core is convenient for carry out electric power or telecommunication transmission, and the design of insulating layer is convenient for carry out insulation protection to the copper core, avoids the copper core to receive external corruption and damage, and the design of inner liner is convenient for support the filling layer, and the design of filling layer is convenient for carry out the secondary protection to copper core and insulating layer, and then has improved cable main body's life and effect.

2. The design through the waterproof layer has improved the water-proof effects of cable main part, avoids the copper core to be affected the back corrosion rate and accelerates, and the design on resistant high temperature layer avoids external high temperature environment to cause the influence to inside copper core of cable main part and insulating rubber, and then influences the normal use of cable main part, and the design on corrosion-resistant layer makes cable main part surface acid and alkali-resistance ability promote, and then has improved the life of cable main part.

3. Two cable main parts of being convenient for connect the use through support ring one and support ring two, the square pole passes the support ring and extrudees the sloping block in the lump for the spring produces elasticity, and when the support ring was crossed completely to the sloping block, under the effect of spring force, the sloping block removed to reset and a support ring front end laminating, and two front ends of support ring and a support ring rear end laminating this moment, and then accomplish the connection of two cable main parts, and then the connection between the cable main part of being convenient for is used.

Drawings

Fig. 1 is a schematic perspective view of a low-voltage copper-core cable with good fire resistance according to the present invention;

FIG. 2 is a schematic structural diagram of a cable main body of a low-voltage copper-core cable with good fire resistance according to the present invention;

FIG. 3 is a cross-sectional view of a support ring for a low voltage copper core cable having improved fire resistance according to the present invention;

fig. 4 is a partially enlarged structural schematic view of a low-voltage copper-core cable with good fire resistance according to the present invention.

In the figure: 1. a cable body; 2. a corrosion-resistant layer; 3. a high temperature resistant layer; 4. a waterproof layer; 5. an inner liner layer; 6. a filling layer; 7. an insulating layer; 8. a copper core; 9. a first support ring; 10. a second support ring; 11. a square bar; 12. a spring; 13. and (5) an oblique block.

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. It should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and their meaning in the context of this patent will be understood to those of ordinary skill in the art.

Example 1

Referring to fig. 1-2, a low-voltage copper core cable with good fire resistance comprises a cable main body 1, wherein the cable main body 1 comprises a corrosion-resistant layer 2, a high-temperature-resistant layer 3, a waterproof layer 4, an inner liner layer 5, a filling layer 6, an insulating layer 7 and a copper core 8, an insulating layer 7 is arranged on the annular side surface of the copper core 8, the copper core 8 is designed to facilitate electric power or telecommunication transmission, the insulating layer 7 is designed to facilitate insulation protection of the copper core 8 and prevent the copper core 8 from being damaged due to external corrosion, the inner liner layer 5 is arranged outside the insulating layer 7, the inner liner 5 is designed to facilitate support of the filling layer 6, the filling layer 6 is arranged inside the inner liner 5, the filling layer 6 is designed to facilitate secondary protection of the copper core 8 and the insulating layer 7, the outer surface of the insulating layer 7 is attached to the filling layer 6, the waterproof layer 4 is arranged outside the inner liner 5, and the waterproof layer 4 is designed to improve the waterproof effect of the cable main body 1, avoid copper core 8 to wet the back corrosion rate accelerate, be provided with high temperature resistant layer 3 on the 4 annular side of waterproof layer, external high temperature environment is avoided in high temperature resistant layer 3's design to cause the influence to 1 inside copper core 8 of cable main part and insulating rubber, and then influence the normal use of cable main part 1, be provided with corrosion-resistant layer 2 on the 3 annular side of high temperature resistant layer, corrosion-resistant layer 2's design makes 1 surface acid and alkali resistance of cable main part promote, and then improved cable main part 1's life.

In the utility model, it should be noted that the corrosion-resistant layer 2 is made of polytetrafluoroethylene, the design of the polytetrafluoroethylene not only can improve the corrosion-resistant effect of the cable main body 1, but also can improve the electrical insulation and the anti-aging endurance of the cable main body 1, the design of the high-temperature-resistant layer 3 is made of asbestos gauze, the design of the asbestos gauze improves the high-temperature-resistant effect of the cable main body 1, and meanwhile, can effectively improve the fire-proof performance of the cable main body 1, the waterproof layer 4 is made of butyl rubber, the design of the butyl rubber improves the waterproof effect of the cable main body 1, so as to avoid the copper core 8 from being affected, the filling layer 6 is made of glass fiber, the design of the glass fiber further improves the high-temperature-resistant effect of the cable main body 1, and the insulating layer 7 is made of insulating rubber, so that the electric leakage phenomenon of the cable main body 1 is avoided.

The working principle is as follows: when using cable main body 1, the design of copper core 8 is convenient for carry out electric power or telecommunication transmission, the design of insulating layer 7 is convenient for carry out insulation protection to copper core 8, avoid copper core 8 to receive external corruption and damage, the design of inner liner 5 is convenient for support filling layer 6, the design of filling layer 6 is convenient for carry out secondary protection to copper core 8 and insulating layer 7, waterproof layer 4's design has improved cable main body 1's water-proof effects, avoid copper core 8 to accelerate by the corrosion rate after damping, high temperature resistant layer 3's design avoids external high temperature environment to cause the influence to copper core 8 and the insulating rubber of cable main body 1 inside, and then influence cable main body 1's normal use, corrosion resistant layer 2's design makes cable main body 1 surface acid and alkali resistance promote, and then cable main body 1's life has been improved.

Example 2

Referring to fig. 3-4, the low-voltage copper core cable with good fire resistance further comprises a first support ring 9 and a second support ring 10, the number of the cable main bodies 1 is two, the rear end of the annular side surface of one cable main body 1 is provided with the first support ring 9 through a screw, the front end of the annular side surface of the other cable main body 1 is provided with the second support ring 10 through a screw, the rear end of the first support ring 9 is attached to the front end of the second support ring 10, the front end of the second support ring 10 is uniformly welded with four square rods 11, the front end of each square rod 11 penetrates through the first support ring 9, four square through holes are uniformly processed at the front end of the first support ring 9, the square through holes are internally inserted with the square rods 11, the square rods 11 are conveniently inserted into the first support ring 9 due to the design of the square through holes, rectangular grooves are symmetrically formed at the left end and the right end of each square rod 11, springs 12 are welded inside, oblique blocks 13 are welded at the other ends of the springs, the oblique blocks 13 extend to the outer sides of the rectangular grooves and are attached to the front ends of the first support rings 9, the design of sloping block 13 is convenient for with square bar 11 joint on support ring 9, and then realizes the connection of two cable main bodies 1, and the design of rectangular channel is convenient for sloping block 13 and is accomodate inside square bar 11.

The working principle is as follows: when two cable bodies 1 need to be connected, the other cable body 1 is installed at the rear end of one cable body 1, so that the second support ring 10 is located at the rear end of the first support ring 9, meanwhile, the front end of the square rod 11 enters the square through hole on the first support ring 9, the other cable body 1 is pushed to move forwards, the cable body 1 moves forwards to drive the second support ring 10 and the square rod 11 to move forwards, the square rod 11 moves forwards to drive the inclined block 13 to move, so that the inclined block 13 is attached to the first support ring 9, the first support ring 9 extrudes the inclined block 13, so that the inclined block 13 moves into the rectangular groove and extrudes the spring 12, the spring 12 generates elastic force, when the inclined block 13 completely crosses the first support ring 9, under the action of the elastic force of the spring 12, the inclined block 13 moves to reset to be attached to the front end of the first support ring 9, at the moment, the front end of the second support ring 10 is attached to the rear end of the first support ring 9, thereby completing the connection of the two cable bodies 1.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the utility model concepts of the present invention in the scope of the present invention.

Claims

1. The utility model provides a low pressure copper core cable that fire resistance is good, includes cable main part (1), its characterized in that, cable main part (1) is including corrosion resistant layer (2), high temperature resistant layer (3), waterproof layer (4), inner liner (5), filling layer (6), insulating layer (7) and copper core (8), be provided with insulating layer (7) on copper core (8) the ring flank, insulating layer (7) outside is provided with inner liner (5), and inner liner (5) inside is provided with filling layer (6), insulating layer (7) surface and filling layer (6) laminate mutually, inner liner (5) outside is provided with waterproof layer (4), be provided with high temperature resistant layer (3) on waterproof layer (4) the ring flank, be provided with corrosion resistant layer (2) on high temperature resistant layer (3) the ring flank.

2. The low-voltage copper-core cable with good fire resistance according to claim 1, wherein the corrosion-resistant layer (2) is made of polytetrafluoroethylene, and the high-temperature-resistant layer (3) is made of asbestos gauze.

3. The low-voltage copper core cable with good fire resistance according to claim 1, wherein the waterproof layer (4) is made of butyl rubber, the filling layer (6) is made of glass fiber yarns, and the insulating layer (7) is made of insulating rubber.

4. The low-voltage copper core cable with good fire resistance as claimed in claim 1, wherein the number of the cable main bodies (1) is two, one of the cable main bodies (1) is fixedly provided with a first supporting ring (9) at the rear end of the annular side surface, the other cable main body (1) is fixedly provided with a second supporting ring (10) at the front end of the annular side surface, and the rear end of the first supporting ring (9) is attached to the front end of the second supporting ring (10).

5. The low-voltage copper-core cable with good fire resistance according to claim 4, wherein four square rods (11) are uniformly and fixedly mounted at the front end of the second support ring (10), the front ends of the square rods (11) penetrate through the first support ring (9), four square through holes are uniformly formed in the front end of the first support ring (9), and the square rods (11) are inserted into the square through holes.

6. The low-voltage copper core cable with good fire resistance as claimed in claim 5, wherein rectangular grooves are symmetrically formed in the left end and the right end of the square rod (11), and springs (12) are fixedly mounted in the rectangular grooves.

7. The low-voltage copper core cable with good fire resistance as claimed in claim 6, wherein an inclined block (13) is fixedly mounted at the other end of the spring (12), and the other end of the inclined block (13) extends to the outer side of the rectangular groove and is attached to the front end of the first support ring (9).