CN218471623U

CN218471623U - Special-shaped flame-retardant aluminum alloy armored low-voltage power cable

Info

Publication number: CN218471623U
Application number: CN202222023205.4U
Authority: CN
Inventors: 杨有粮; 李晖; 丁元丽
Original assignee: Kunming Kunming Railway Cable Co ltd
Current assignee: Kunming Kunming Railway Cable Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2023-02-10
Anticipated expiration: 2032-08-03

Abstract

The utility model discloses a fire-retardant aluminum alloy armor low voltage power cable of abnormal shape, including the cable oversheath, the cable core has been placed to the inside of cable oversheath, the inboard fixedly connected with dampproof course of cable oversheath, the inboard fixedly connected with enhancement layer of dampproof course, the inboard fixedly connected with flame retardant coating of enhancement layer, the inboard fixedly connected with tensile layer of flame retardant coating, the inside of cable core is provided with the location stem, the outside of cable core is provided with the armor, the inside fixedly connected with centre gripping cushion of armor. This fire-retardant aluminum alloy armor low pressure power cable of abnormal shape can carry out spacing support to its elasticity scope through the outside reinforcement sleeve of support elastic pole, and the inside tensile layer of cable main part has stronger power of dragging, and its inside armor and tensile layer can improve the protecting effect when cable main part receives the extrusion and drags to improve the durability that the cable used, solved the relatively poor problem of intensity.

Description

Special-shaped flame-retardant aluminum alloy armored low-voltage power cable

Technical Field

The utility model relates to a power equipment technical field specifically is a fire-retardant aluminum alloy armor low voltage power cable of abnormal shape.

Background

With the rapid development of communication and power industries, cables become indispensable connection and transmission equipment, power cables are mainly used for power supply or electrical connection in low-voltage lines, the product is suitable for industries such as petroleum, chemical engineering, power plants, metallurgy and railways, the types of the cables are more but different from one another, and common cables are not enough when in use, for example, the integral durability of part of the cables is poor, the condition that the inner part is bent and damaged in the process of wire arrangement and transmission is easy to occur, or the flame-retardant protection effect of the cables is poor, so that a special-shaped flame-retardant aluminum alloy armored low-voltage power cable is developed to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-retardant aluminum alloy armor low pressure power cable of abnormal shape to propose the relatively poor problem of cable support intensity in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-retardant aluminum alloy armor low pressure power cable of abnormal shape, includes the cable oversheath, the cable core has been placed to the inside of cable oversheath, the inboard fixedly connected with dampproof course of cable oversheath, the inboard fixedly connected with enhancement layer of dampproof course, the inboard fixedly connected with fire-retardant layer of enhancement layer, the inboard fixedly connected with tensile layer of fire-retardant layer, the inside of cable core is provided with the location stem, the outside of cable core is provided with the armor, the inside fixedly connected with centre gripping cushion block of armor, six groups of armor steel wires of fixedly connected with between armor and the tensile layer, fixedly connected with supports the elastic rod between armor and the tensile layer, the outside fixedly connected with reinforcement cover that supports the elastic rod.

Preferably, the supporting elastic rods are provided with six groups, and the supporting elastic rods are distributed outside the armor layer in an annular shape.

Preferably, four groups of limiting gaskets are fixedly connected between the positioning core column and the armor layer, and a positioning sleeve is fixedly connected to the outer part of each limiting gasket.

Preferably, the cable core is provided with four groups, the clamping cushion blocks are provided with four groups, and the inner sides of the clamping cushion blocks are in contact with the outer sides of the cable core.

Preferably, the cable outer sheath is adhered to the moisture-proof layer through glue, and the flame-retardant layer is adhered to the reinforcing layer through glue.

Preferably, the flame-retardant layer is prepared by adopting a tinned copper wire mesh grid, and the flame-retardant layer is arranged between the tensile layer and the reinforcing layer.

Compared with the prior art, the beneficial effects of the utility model are that: the special-shaped flame-retardant aluminum alloy armored low-voltage power cable not only realizes improvement of durability and convenience in positioning, but also realizes flame retardance and moisture resistance;

(1) The armor layer in the cable main body can improve the supporting force of the whole cable, the supporting elastic rods outside the armor layer and the armor steel wires are uniformly distributed to improve the uniformity of the supporting force, the supporting elastic rods and the armor steel wires have strong supporting elasticity, the reinforcing sleeve outside the supporting elastic rods can limit and support the elastic range of the reinforcing sleeve, the tensile layer in the cable main body has strong pulling force, and the armor layer and the tensile layer in the cable main body can improve the protection effect when the cable main body is extruded and pulled, so that the use durability of the cable is improved;

(2) The cable core is arranged in the cable outer sheath and is limited and clamped through the clamping cushion blocks, the clamping cushion blocks are extruded outside the cable core, the positioning core column and the limiting cushion blocks in the cable core can limit and divide four groups of cable cores, the clamping cushion blocks enhance the placement firmness of the cable core, the cable core falling and deviation of a cable main body in the using process are avoided, and the structure realizes the functions of facilitating positioning and improving the stability;

(3) Through being provided with the cable oversheath, the dampproof course, fire-retardant layer and enhancement layer, what the cable oversheath adopted is that waterproof wear resistant material preparation forms, the inboard dampproof course of cable oversheath can carry out dampproofing the absorption to the steam that soaks the cable main part, avoid steam to enter into cable main part internal contact to the cable core, the tinned copper wire mesh grid that the inboard fire-retardant layer of cable oversheath adopted, the condition that spontaneous combustion expansion appears in fire-retardant cable main part inside can be effectively to fire-retardant layer, also can avoid the cable core to be burnt to simultaneously, this structure has improved the protectiveness that the cable main part used.

Drawings

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

FIG. 2 is a side view of the present invention;

fig. 3 is a schematic view of a front cross-sectional structure of a cable core of the present invention;

fig. 4 is a schematic view of a front view of a local cross-sectional structure of the armor layer of the present invention.

In the figure: 1. a cable outer sheath; 2. a moisture barrier; 3. an armor layer; 4. supporting an elastic rod; 5. a flame retardant layer; 6. armouring steel wires; 7. clamping the cushion block; 8. a reinforcing layer; 9. a cable core; 10. a limiting gasket; 11. a positioning sleeve; 12. positioning the core column; 13. reinforcing the sleeve; 14. a tensile layer.

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.

Example 1: referring to fig. 1-4, a special-shaped flame-retardant aluminum alloy armored low-voltage power cable comprises a cable outer sheath 1, a cable core 9 is placed inside the cable outer sheath 1, a moisture-proof layer 2 is fixedly connected to the inner side of the cable outer sheath 1, a reinforcing layer 8 is fixedly connected to the inner side of the moisture-proof layer 2, a flame-retardant layer 5 is fixedly connected to the inner side of the reinforcing layer 8, a tensile layer 14 is fixedly connected to the inner side of the flame-retardant layer 5, a positioning core column 12 is arranged inside the cable core 9, an armor layer 3 is arranged outside the cable core 9, a clamping cushion block 7 is fixedly connected inside the armor layer 3, six groups of armor steel wires 6 are fixedly connected between the armor layer 3 and the tensile layer 14, a supporting elastic rod 4 is fixedly connected between the armor layer 3 and the tensile layer 14, and a reinforcing sleeve 13 is fixedly connected to the outside of the supporting elastic rod 4;

six groups of supporting elastic rods 4 are arranged, and the supporting elastic rods 4 are annularly distributed outside the armor layer 3;

specifically, as shown in fig. 1, fig. 2 and fig. 4, the supporting elastic rods 4 and the armor wires 6 outside the armor layer 3 are uniformly distributed to improve the uniformity of the supporting force, the supporting elastic rods 4 and the armor wires 6 have strong supporting elasticity, the reinforcing sleeve 13 outside the supporting elastic rods 4 can limit and support the elastic range thereof, the tensile layer 14 inside the cable main body has strong pulling force, and the armor layer 3 and the tensile layer 14 inside the cable main body can improve the protection effect when the cable main body is extruded and pulled.

Example 2: four groups of limiting gaskets 10 are fixedly connected between the positioning core column 12 and the armor layer 3, positioning sleeves 11 are fixedly connected to the outer parts of the limiting gaskets 10, four groups of cable cores 9 are arranged, four groups of clamping cushion blocks 7 are arranged, and the inner sides of the clamping cushion blocks 7 are in contact with the outer sides of the cable cores 9;

specifically, as shown in fig. 1 and fig. 3, the clamping cushion block 7 is extruded outside the cable core 9, the positioning core column 12 and the limiting gasket 10 inside the cable core 9 can limit and divide the four groups of cable cores 9, and the clamping cushion block 7 enhances the firmness of the placement of the cable cores 9, thereby avoiding the situation that the cable cores 9 fall off and are deviated when the cable main body is in use.

Example 3: the outer cable sheath 1 is adhered to the moisture-proof layer 2 through glue, the flame-retardant layer 5 is adhered to the reinforcing layer 8 through glue, the flame-retardant layer 5 is prepared by adopting a tinned copper wire mesh grid, and the flame-retardant layer 5 is arranged between the tensile layer 14 and the reinforcing layer 8;

specifically, as shown in fig. 1 and 2, the moisture-proof layer 2 on the inner side of the cable outer sheath 1 can absorb moisture immersed in a cable main body in a moisture-proof manner, so that the moisture is prevented from entering the cable main body and contacting the cable core 9, the flame-retardant layer 5 on the inner side of the cable outer sheath 1 adopts a tinned copper wire mesh grid, and the flame-retardant layer 5 can effectively resist flame.

The working principle is as follows: the utility model discloses when using, what cable main part outside cable oversheath 1 adopted is that waterproof wear-resisting material preparation forms, can carry out waterproof dustproof protection to the cable main part effectively, the cable core 9 of cable main part installation can reduce the condition of aversion through centre gripping cushion 7 and take place, centre gripping cushion 7 extrusion is in the outside of cable core 9, location stem 12 and spacing gasket 10 inside cable core 9 can carry out spacing division to four group's cable cores 9, the fastness that centre gripping cushion 7 reinforcing cable core 9 was placed, armor 3 inside the cable main part can improve the holistic holding power to the cable, armor 3 outside support elastic rod 4 and armor steel wire 6 distribute uniformly can improve the homogeneity of holding power, support elastic rod 4 and armor steel wire 6 have stronger support elasticity, support elastic rod 4 outside reinforcing cover 13 can carry out spacing support to its elasticity scope, the inside tensile layer 14 of cable main part has stronger pulling force, its inside armor 3 and tensile layer 14 can improve the protective effect when the cable main part receives the extrusion and pulls, thereby the durability that the cable used has been improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a fire-retardant aluminum alloy armor low pressure power cable of abnormal shape, includes cable oversheath (1), its characterized in that: cable core (9) have been placed to the inside of cable oversheath (1), inboard fixedly connected with dampproof course (2) of cable oversheath (1), inboard fixedly connected with enhancement layer (8) of dampproof course (2), inboard fixedly connected with fire-retardant layer (5) of enhancement layer (8), inboard fixedly connected with tensile layer (14) of fire-retardant layer (5), the inside of cable core (9) is provided with location stem (12), the outside of cable core (9) is provided with armor (3), the inside fixedly connected with centre gripping cushion (7) of armor (3), six groups of armor steel wires (6) of fixedly connected with between armor (3) and tensile layer (14), fixedly connected with supports elastic rod (4) between armor (3) and tensile layer (14), the outside fixedly connected with reinforcement cover (13) that supports elastic rod (4).

2. The special-shaped flame-retardant aluminum alloy armored low-voltage power cable as claimed in claim 1, wherein: six groups of supporting elastic rods (4) are arranged, and the supporting elastic rods (4) are annularly distributed outside the armor layer (3).

3. The special-shaped flame-retardant aluminum alloy armored low-voltage power cable according to claim 1, characterized in that: four groups of limiting gaskets (10) are fixedly connected between the positioning core column (12) and the armor layer (3), and a positioning sleeve (11) is fixedly connected to the outer portion of each limiting gasket (10).

4. The special-shaped flame-retardant aluminum alloy armored low-voltage power cable according to claim 1, characterized in that: the cable core (9) is provided with four groups, the clamping cushion blocks (7) are provided with four groups, and the inner sides of the clamping cushion blocks (7) are in contact with the outer sides of the cable cores (9).

5. The special-shaped flame-retardant aluminum alloy armored low-voltage power cable according to claim 1, characterized in that: the cable outer sheath (1) is adhered to the moisture-proof layer (2) through glue, and the flame-retardant layer (5) is adhered to the reinforcing layer (8) through glue.

6. The special-shaped flame-retardant aluminum alloy armored low-voltage power cable according to claim 1, characterized in that: the flame-retardant layer (5) is prepared from a tinned copper wire mesh grid, and the flame-retardant layer (5) is arranged between the tensile layer (14) and the reinforcing layer (8).