CN211529648U - Special compression-resistant flexible cable - Google Patents

Abstract

The utility model discloses a special resistance to compression flexible cable, including cable core, supporting framework, protective layer, buffer layer, oversheath, fire-retardant filler, the cable core sets up in the protective layer with supporting framework, the outer crowded package buffer layer of protective layer, the outer crowded package oversheath of buffer layer, fire-retardant filler is filled between cable core and supporting framework. The utility model has the advantages of simple and reasonable structure, can effectual improvement cable's resistance to compression effect.

Description

Special compression-resistant flexible cable

Technical Field

The utility model relates to a special resistance to compression flexible cable belongs to power cable technical field.

Background

The power cable is widely applied to urban underground power grids, leading-out lines of power stations, power supplies inside industrial and mining enterprises, railway through lines, underwater power transmission lines crossing rivers and straits, and the like.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide a special type compression-resistant flexible cable.

The scheme of the utility model is as follows: the utility model provides a special resistance to compression flexible cable, includes cable core, support skeleton, protective layer, buffer layer, oversheath, fire-retardant filler, the cable core sets up in the protective layer with supporting the skeleton, crowded package buffer layer outside the protective layer, crowded package oversheath outside the buffer layer, fire-retardant filler is filled between cable core and support skeleton, the cable core comprises the conductor, around covering, insulating layer, crowded package outward around the covering of conductor, crowded package insulating layer outward around the covering, support skeleton comprises cross skeleton, base, connecting rod, the cross skeleton sets up at the cable positive center, the base sets up on the protective layer inner wall for four group's symmetries, the base is fixed to be set up on the protective layer inner wall, the cross skeleton passes through connecting rod and pedestal connection, cross skeleton and base are made by rigid insulation material, the connecting rod is made by elastic insulation material, the buffer layer is internally and symmetrically provided with a plurality of groups of round through holes, the flame-retardant filler is powdery flame-retardant filler, and the buffer layer can be internally provided with a shielding layer.

The utility model has the advantages that: the utility model has the advantages of simple and reasonable structure, because the setting of buffer layer, but buffer intraformational circular through-hole can effectual buffer pressure when exerting pressure to the cable, the protection cable, and the setting of the intraformational support chassis of protection has had very big improvement to the compressive strength of cable, and the connecting rod in the support chassis is made by elastic insulation material, not only can buffer pressure, has still guaranteed the pliability of cable.

Drawings

Fig. 1 is a schematic structural diagram of the present invention, and fig. 2 is a schematic structural diagram of embodiment 2, wherein: 1. a cable core; 2. a support framework; 3. a protective layer; 4. a buffer layer; 5. an outer sheath; 6. a flame retardant filler; 11. a conductor; 12. wrapping a covering; 13. an insulating layer; 21. a cross-shaped framework; 22. a base; 23. a connecting rod; 41. a circular through hole; 42. a connecting pipe; 7. and a shielding layer.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be understood that the term "provided" unless otherwise explicitly specified or limited

The terms "coupled" and "connected" are used broadly and may include, for example, a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1

The utility model provides a special resistance to compression flexible cable, includes cable core 1, supporting framework 2, protective layer 3, buffer layer 4, oversheath 5, fire-retardant filler 6, cable core 1 and supporting framework 2 set up in protective layer 3, protective layer 3 crowded package buffer layer 4 outward, buffer layer 4 crowded package oversheath 5 outward fire-retardant filler 6 is filled between cable core 1 and supporting framework 2, cable core 1 comprises conductor 11, around covering 12, insulating layer 13, conductor 11 crowded package is around covering 12 outward, crowded package insulating layer 13 outward around covering 12, supporting framework 2 comprises cross skeleton 21, base 22, connecting rod 23, cross skeleton 21 sets up at the cable positive center, base 22 sets up on protective layer 3 inner wall for four group's symmetries, base 22 is fixed to be set up on protective layer 3 inner wall, cross skeleton 21 passes through connecting rod 23 and base 22 connects, the cross-shaped framework 21 and the base 22 are made of rigid insulating materials, the connecting rod 23 is made of elastic insulating materials, a plurality of groups of circular through holes 41 are symmetrically arranged in the buffer layer 4, and the flame-retardant filler 6 is powdery flame-retardant filler.

Example 2

The utility model provides a special resistance to compression flexible cable, includes cable core 1, supporting framework 2, protective layer 3, buffer layer 4, oversheath 5, fire-retardant filler 6, cable core 1 sets up in protective layer 3 with supporting framework 2, the outer crowded package buffer layer 4 of protective layer 3, crowded package oversheath 5 outside the buffer layer 4, fire-retardant filler 6 is filled between cable core 1 and supporting framework 2, cable core 1 comprises conductor 11, around covering 12, insulating layer 13, the outer crowded package of conductor 11 is around covering 12, around covering 12 outer crowded package insulating layer 13, supporting framework 2 comprises cross skeleton 21, base 22, connecting rod 23, cross skeleton 21 sets up at the cable positive center, base 22 sets up on protective layer 3 inner wall for four group's symmetries, base 22 is fixed to be set up on protective layer 3 inner wall, cross skeleton 21 passes through connecting rod 23 and base 22 connects, cross skeleton 21 and base 22 are made by rigid insulation material, connecting rod 23 is made by elastic insulation material, fire-retardant filler 6 is powdered fire-retardant filler, the symmetry is provided with the circular through-hole 41 of multiunit in the buffer layer 4, be provided with connecting pipe 42 between the circular through-hole 41, connecting pipe 42 is that the multiunit sets up in buffer layer 4 along cable direction interval fixed distance, and connecting pipe 42 makes UNICOM between the circular through-hole 41 of multiunit, be provided with shielding layer 7 in the buffer layer 4, shielding layer 7 sets up in circular through-hole 41 and connecting pipe 42.

Although the present invention has been described and illustrated in detail with reference to specific embodiments thereof, it should be understood that various equivalent changes and modifications can be made therein in accordance with the present invention, and the functional effects thereof are not beyond the spirit of the present invention.

Claims (5)

1. The utility model provides a special type resistance to compression flexible cable, includes cable core, supporting framework, protective layer, buffer layer, oversheath, fire-retardant filler, its characterized in that: the cable core and the supporting framework are arranged in the protective layer, the buffer layer is extruded outside the protective layer, the outer sheath is extruded outside the buffer layer, and the flame-retardant filler is filled between the cable core and the supporting framework.

2. A special compression-resistant flexible cable as claimed in claim 1, wherein: the cable core is composed of a conductor, a wrapping layer and an insulating layer, wherein the wrapping layer is extruded outside the conductor, and the insulating layer is extruded outside the wrapping layer.

3. A special compression-resistant flexible cable as claimed in claim 1, wherein: the utility model discloses a cable protection device, including support skeleton, base, pedestal connection, cross skeleton, base, connecting rod, support skeleton comprises cross skeleton, base, connecting rod, the cross skeleton sets up at the cable positive center, the base sets up on the protective layer inner wall for four group's symmetries, the base is fixed to be set up on the protective layer inner wall, the cross skeleton passes through connecting rod and pedestal connection, cross skeleton and base are made by rigid insulation material, the connecting rod is made by elastic insulation material.

4. A special compression-resistant flexible cable as claimed in claim 1, wherein: and a plurality of groups of circular through holes are symmetrically arranged in the buffer layer.

5. A special compression-resistant flexible cable as claimed in claim 1, wherein: the flame-retardant filler is powdery flame-retardant filler.

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