CN-224217274-U - Cable with high compression resistance

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a cable with high compression resistance, which comprises a polyvinyl chloride sheath and a steel tape armor protective layer wound on the surface of the polyvinyl chloride sheath, wherein a filling layer is connected inside the steel tape armor protective layer, a crosslinked polyethylene insulating layer is connected inside the filling layer, a copper core is connected inside the crosslinked polyethylene insulating layer, a first reinforcing belt is embedded inside the polyvinyl chloride sheath, two ends of the first reinforcing belt are connected with a second reinforcing belt, and the cable is manufactured by stacking and repeatedly assembling the first reinforcing belt and the second reinforcing belt which are made of PVC materials inside the polyvinyl chloride sheath.

Inventors

• WANG HAIQUN
• WANG YUBAO
• WU WANZHI
• WANG QUN

Assignees

• 安徽长鹿特种电缆有限公司

Dates

Publication Date

20260508

Application Date

20250603

Claims (5)

1. 1. The cable with high compression resistance comprises a polyvinyl chloride sheath (1) and a steel tape armor protection layer (2) wound on the surface of the polyvinyl chloride sheath (1), and is characterized in that a filling layer (3) is connected inside the steel tape armor protection layer (2), a crosslinked polyethylene insulation layer (4) is connected inside the filling layer (3), and a copper core (5) is connected inside the crosslinked polyethylene insulation layer (4); The PVC sheath is characterized in that a first reinforcing belt (11) is embedded in the PVC sheath (1), two ends of the first reinforcing belt (11) are connected with second reinforcing belts (12), the same-directional ends of the first reinforcing belt (11) and the second reinforcing belts (12) are connected with butt joint buckles (13), a clamping groove (14) is formed in one end, close to the butt joint buckles (13), of the first reinforcing belt (11), and the same-directional ends of the first reinforcing belt (11) and the second reinforcing belts (12) are provided with lightening grooves (15).
2. 2. The cable with high compression resistance according to claim 1, wherein the first reinforcing strip (11) and the second reinforcing strip (12) are made of PVC, and the first reinforcing strip (11) and the second reinforcing strip (12) are connected in a stacking mode in a reciprocating manner.
3. 3. The cable with high compression resistance according to claim 1, wherein the butt joint buckle (13) is made of plastic, and the butt joint buckle (13) and the clamping groove (14) form a clamping structure.
4. 4. The cable with strong compression resistance according to claim 1, wherein the butt joint buckles (13) are four, the four butt joint buckles (13) are distributed in a four-equal-division mode relative to the circle center of the first reinforcing belt (11), and the butt joint buckles (13) are in an L-shaped structure in side view.
5. 5. A cable with high compression resistance according to claim 1, wherein the lightening slots (15) have a hexagonal cross section.

Description

Cable with high compression resistance Technical Field The utility model belongs to the technical field of cables, and particularly relates to a cable with high compression resistance. Background A cable is a linear or ribbon-shaped electrical device for transmitting electrical, electrical or optical signals. The power supply is generally composed of one or more mutually insulated conductors, and is wrapped with structures such as an insulating layer, a shielding layer, a protective sleeve and the like, so that safe and reliable transmission is realized, and the power supply is used for transmitting and distributing electric energy and is widely applied to power systems such as power plants, substations, transmission lines, distribution lines and the like; The cable is used as a core carrier for electric energy and signal transmission, and a multi-layer wrapped composite structure is adopted in the cable, and is generally composed of a conductor, an insulating layer, a shielding layer and a protective layer; In an underground laying scene, the cable needs to bear the extrusion force generated by the earthing pressure and foundation settlement, and if the foundation is unevenly settled, the local pressure is even doubled. In narrow spaces such as tunnels and cable trenches, cables are densely distributed to cause mutual extrusion, the outer protective layer is easy to sink after long-term stress, the insulating layer is misplaced, and even conductor deformation and fracture occur when serious. Disclosure of utility model The utility model aims to provide a cable with strong compression resistance, and aims to solve the problem that in the prior art, when the cable is used, the cable needs to bear extrusion force generated by earthing pressure and foundation settlement in an underground laying scene, and if the foundation is unevenly settled, the local pressure is even doubled. In narrow spaces such as tunnels, cable trenches, cables are densely distributed to cause mutual extrusion, the outer protective layer is easy to sink after long-term stress, the insulating layer is misplaced, and even the problem of conductor deformation and fracture occurs when serious. The cable comprises a polyvinyl chloride sheath and a steel tape armor protection layer wound on the surface of the polyvinyl chloride sheath, wherein a filling layer is connected to the inside of the steel tape armor protection layer, a crosslinked polyethylene insulation layer is connected to the inside of the filling layer, and a copper core is connected to the inside of the crosslinked polyethylene insulation layer; the inside of polyvinyl chloride sheath is inlayed and is equipped with first reinforcing band, the both ends of first reinforcing band all are connected with the second reinforcing band, the syntropy end of first reinforcing band and second reinforcing band all is connected with the butt joint buckle, the draw-in groove has been seted up to the one end that first reinforcing band is close to the butt joint buckle, the alleviateed the groove has all been seted up to the syntropy end of first reinforcing band and second reinforcing band. As a cable with high compression resistance, the first reinforcing belt and the second reinforcing belt are preferably made of PVC materials, and are connected in a stacking mode in a reciprocating mode. As the cable with high compression resistance, the butt joint buckle is preferably made of plastic materials, and the butt joint buckle and the clamping groove form a clamping structure. As the cable with high compression resistance, the four butt joint buckles are preferably arranged, the four butt joint buckles are distributed in a quartering mode relative to the circle center of the first reinforcing belt, and the butt joint buckles are in an L-shaped structure in a side view. Preferably, the cross section of the lightening groove of the cable with strong compression resistance is in a hexagonal structure. Compared with the prior art, the utility model has the beneficial effects that: According to the utility model, in the manufacturing process of the cable which needs to be preset underground, the first reinforcing belt and the second reinforcing belt made of PVC materials are stacked and assembled in a reciprocating manner in the polyvinyl chloride sheath, and the reinforcing layer formed by the first reinforcing belt and the second reinforcing belt is wrapped on the surface of the steel tape armor protective layer, so that the strength and the hardness of the cable are improved, and the compression resistance effect is improved. Drawings The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings: FIG. 1 is a schematic view of the overall structure of a cable a