CN218214714U

CN218214714U - Extrusion-resistant deformation-resistant low-voltage power cable

Info

Publication number: CN218214714U
Application number: CN202222202514.8U
Authority: CN
Inventors: 谢正新
Original assignee: Shenglong Electric Group Wuhan Co ltd
Current assignee: Shenglong Electric Group Wuhan Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-01-03
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses a low-voltage power cable with extrusion resistance and deformation resistance, which relates to the technical field of power cables and particularly comprises a wear-resistant layer, wherein a protective layer is coaxially and fixedly connected on the inner wall of the wear-resistant layer, a flame-retardant layer is coaxially and fixedly connected on the inner wall of the protective layer, an installation frame is coaxially arranged inside the flame-retardant layer, and the installation frame is designed as an equilateral regular polygon; the utility model discloses a fire-retardant layer of fire-retardant layer, including installation frame, buffering cavity, buffering elastic strip, the fire-retardant layer of buffering elastic strip one side contacts, the inside coaxial buffer cavity of having seted up of installation frame, the inside coaxial arrangement of buffering cavity has central anti muscle that rolls over, it is equipped with buffering elastic strip to be interrupted equidistant on the fire-retardant layer inner wall, buffering elastic strip is oval design, buffering elastic strip is located the location and embraces between the cover, the fire-retardant layer of buffering elastic strip one side contacts. The utility model discloses when using, realized the effective protection to the cable, avoided the cable conductor to receive external force extrusion to take place deformation and lead to the emergence of the fracture condition, had higher suitability.

Description

Extrusion-resistant deformation-resistant low-voltage power cable

Technical Field

The utility model relates to a power cable technical field specifically is a low voltage power cable of resistant extrusion resistance to deformation.

Background

The cable can be divided into a high-voltage cable and a low-voltage cable according to voltage, wherein the low-voltage cable line, the low-voltage overhead line and the low-voltage overhead insulated line are more difficult to lay and maintain compared with the low-voltage overhead insulated line, but the low-voltage cable line, the low-voltage overhead insulated line and the low-voltage overhead insulated line are widely applied to a low-voltage distribution system due to the characteristics of reliable operation, no pole standing, less influence from the outside and the like. The existing low-voltage power cable is easily bent and deformed when being extruded by a heavy object or impacted by external force, so that an external sheath of the cable is broken, an internal wire core is broken, the applicability is poor, and the use safety of the cable is seriously affected. In order to solve the problems, a low-voltage power cable resistant to extrusion and deformation is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a low voltage power cable of resistant extrusion resistance to deformation has solved the power cable problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the low-voltage power cable with extrusion resistance and deformation resistance comprises a wear-resistant layer, wherein a protective layer is coaxially and fixedly connected to the inner wall of the wear-resistant layer, a flame-retardant layer is coaxially and fixedly connected to the inner wall of the protective layer, an installation frame is coaxially arranged inside the flame-retardant layer, the installation frame is designed to be an equilateral regular polygon, a positioning and embracing sleeve facing one side of the flame-retardant layer is arranged at the corner of the installation frame, and the positioning and embracing sleeve is designed to be C-shaped;

the inside coaxial buffer cavity of having seted up of installation frame, the inside coaxial arrangement of buffer cavity has the central authorities to resist and rolls over the muscle, it is equipped with buffering elasticity strip to be interrupted equidistant on the fire-retardant layer inner wall, buffering elasticity strip is oval design, buffering elasticity strip is located the location and embraces between the cover, the fire-retardant layer in buffering elasticity strip one side contacts, buffering elasticity strip opposite side is provided with the resistance to compression bearing board rather than corresponding, resistance to compression bearing board concave surface contacts with buffering elasticity strip, resistance to compression bearing board convex surface middle part fixedly connected with buffering division board, one side that resistance to compression bearing board was kept away from to the buffering division board runs through the installation frame and is connected with the central authorities resist the muscle of rolling over.

Optionally, the wear-resistant layer is made of a wear-resistant ceramic coating material.

Optionally, the protective layer is made of hard rubber material.

Optionally, the flame retardant layer is made of a glass fiber material.

Optionally, it is equipped with the arc arch towards cable conductor one side to be interrupted the equidistant on the fire-retardant layer inner wall, the protruding inside fixed mounting of arc has supplementary anti muscle of rolling over, supplementary anti muscle of rolling over is parallel with the cable conductor axis.

Optionally, a cable conductor corresponding to the positioning clasping sleeve is arranged in the positioning clasping sleeve, an insulating sleeve is coaxially sleeved on the outer surface of the cable conductor, and the outer surface of the insulating sleeve is connected with the positioning clasping sleeve.

Optionally, the buffering elastic strip is designed to be hollow, and elastic filling materials are installed inside the buffering elastic strip.

Compared with the prior art, the utility model discloses when using, through setting up buffering elastic strip, when it receives the outside gravity extrusion from the wearing layer, the inside elasticity stopping cooperation resistance to compression bearing board of buffering elastic strip can slow down the impact force, when the extrusion force disappears, buffering elastic strip can kick-back gradually and prop up the cable skin, and central authorities resist the muscle of rolling over, supplementary resist the muscle of rolling over then effectively improved cable conductor 7's bending strength, thereby realized the effective protection to the cable, avoided cable conductor to receive external force extrusion to take place deformation and lead to the emergence of the fracture condition, higher suitability has.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the wear-resistant layer, the protective layer and the flame-retardant layer of the present invention;

fig. 3 is a front sectional structural view of the present invention.

In the figure: 1. a wear resistant layer; 2. a protective layer; 3. a flame retardant layer; 4. a mounting frame; 5. positioning the clasping sleeve; 6. an insulating sleeve; 7. a cable conductor; 8. a buffer cavity; 9. a central anti-fold rib; 10. a cushioning elastic strip; 11. a cushioning elastic strip; 12. a compression-resistant bearing plate; 13. a buffer partition plate; 14. an arc-shaped bulge; 15. and (5) assisting in resisting folding ribs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a low-voltage power cable resistant to extrusion and deformation comprises a wear-resistant layer 1, wherein a protective layer 2 is coaxially and fixedly connected to the inner wall of the wear-resistant layer 1, a flame-retardant layer 3 is coaxially and fixedly connected to the inner wall of the protective layer 2, an installation frame 4 is coaxially arranged inside the flame-retardant layer 3, the installation frame 4 is designed to be an equilateral regular polygon, a positioning embracing sleeve 5 facing one side of the flame-retardant layer 3 is arranged at the corner of the installation frame 4, the positioning embracing sleeve 5 is designed to be C-shaped, a cable conductor 7 can be positioned and installed by utilizing the positioning embracing sleeve 5, and the cable conductor 7 is protected by the wear-resistant layer 1, the protective layer 2 and the flame-retardant layer 3;

the inside coaxial buffer cavity 8 of having seted up of installation frame 4, the inside coaxial central authorities of buffer cavity 8 install anti muscle 9 of folding, it is equipped with buffering elastic strip 10 to be interrupted equidistant on the 3 inner walls of fire-retardant layer, buffering elastic strip 10 is oval design, buffering elastic strip 10 is located between the location embraces the cover 5, the fire-retardant layer 3 of buffering elastic strip 10 one side contacts, buffering elastic strip 10 opposite side is provided with resistance to compression supporting plate 12 rather than corresponding, resistance to compression supporting plate 12 concave surface contacts with buffering elastic strip 10, resistance to compression supporting plate 12 convex surface middle part fixedly connected with buffering division board 13, one side that buffering division board 13 kept away from resistance to compression supporting plate 12 runs through installation frame 4 and is connected with central authorities 'anti muscle 9, utilize installation frame 4, central authorities' anti muscle 9, buffering division board 13, resistance to compression supporting plate 12, prop the cable outside, when buffering elastic strip 10 receives the gravity extrusion from the wearing layer 1 outside to extrude, slow down the impact strength of resistance to compression supporting plate 12 through its inside elasticity stopping 11 cooperation, when the extrusion force disappears, buffering elastic strip 10 can kick-back gradually and prop up the cable, thereby avoided cable 7 to receive the extrusion that the extrusion takes place the extrusion that external force leads to the fracture condition.

Further, the wear-resistant layer 1 is made of a wear-resistant ceramic coating material, the wear-resistant ceramic coating material is manually or mechanically coated on the inner liner or the surface of the equipment, and after a series of chemical reactions, the bonding strength and hardness of the ceramic can be achieved after 3 days at normal temperature.

Furthermore, the protective layer 2 is made of hard rubber material, and the hard rubber material has the characteristics of strong tensile strength and excellent electrical insulation performance, and is an excellent electrical insulation protective material.

Furthermore, the flame-retardant layer 3 is made of glass fiber material, and the glass fiber material has the characteristics of good insulation property, strong heat resistance, good corrosion resistance and the like, and is commonly used as a flame-retardant material in composite materials.

Further say, be interrupted equidistant being equipped with the arc arch 14 towards cable conductor 7 one side on the 3 inner walls on fire-retardant layer, the protruding 14 inside fixed mounting of arc has supplementary anti muscle 15 of rolling over, supplementary anti muscle 15 of rolling over is parallel with cable conductor 7 axis, through the protruding 14 inside supplementary anti muscle 15 of rolling over of arc, has further strengthened cable conductor 7's whole anti intensity of buckling.

Furthermore, a cable conductor 7 corresponding to the positioning embracing sleeve 5 is arranged in the positioning embracing sleeve 5, an insulating sleeve 6 is coaxially sleeved on the outer surface of the cable conductor 7, the outer surface of the insulating sleeve 6 is connected with the positioning embracing sleeve 5, the cable conductor 7 is separated in different positioning embracing sleeves 5 by arranging the insulating sleeve 6 and matching with a buffer partition plate 13, and the protection performance of the cable conductor 7 is improved.

Furthermore, the elastic buffer strip 10 is hollow, the elastic buffer strip 10 is internally provided with the elastic filler 11, and the elastic buffer strip 10 and the elastic filler 11 are arranged to be opposite to the elastic filler 11 from the outside of the wear-resistant layer 1.

In conclusion, when the extrusion-resistant and deformation-resistant low-voltage power cable is used, when the buffering elastic strip 10 is extruded by the gravity from the outside of the wear-resistant layer 1, the elastic filling material 11 inside the buffering elastic strip 10 is matched with the compression-resistant bearing plate 12 to slow down the impact force, when the extrusion force disappears, the buffering elastic strip 10 can rebound gradually to support the outer layer of the cable, and the central anti-bending rib 9 and the auxiliary anti-bending ribs 15 effectively improve the anti-bending strength of the cable conductor 7, so that the cable is effectively protected, the cable conductor 7 is prevented from being deformed by the extrusion of external force to cause the fracture, and the cable has high applicability.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 in specific cases to those skilled in the art. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 low voltage power cable of resistant extrusion resistance to deformation, includes wearing layer (1), its characterized in that: the inner wall of the wear-resistant layer (1) is coaxially and fixedly connected with a protective layer (2), the inner wall of the protective layer (2) is coaxially and fixedly connected with a flame-retardant layer (3), an installation frame (4) is coaxially arranged inside the flame-retardant layer (3), the installation frame (4) is designed to be an equilateral regular polygon, a positioning and embracing sleeve (5) facing one side of the flame-retardant layer (3) is arranged at the corner of the installation frame (4), and the positioning and embracing sleeve (5) is designed to be C-shaped;

inside coaxial buffer cavity (8) of having seted up of installation frame (4), buffer cavity (8) inside coaxial arrangement has central anti muscle (9) of rolling over, it is equipped with buffering elastic strip (10) to be interrupted equidistant on fire-retardant layer (3) inner wall, buffering elastic strip (10) are oval design, buffering elastic strip (10) are located the location and embrace between the cover (5), the fire-retardant layer (3) in buffering elastic strip (10) one side contacts, buffering elastic strip (10) opposite side is provided with rather than corresponding resistance to compression bearing board (12), resistance to compression bearing board (12) concave surface contacts with buffering elastic strip (10), resistance to compression bearing board (12) convex surface middle part fixedly connected with buffering division board (13), one side that resistance to compression bearing board (12) was kept away from in buffering division board (13) runs through installation frame (4) and is connected with central anti muscle (9) of rolling over.

2. The low voltage power cable of claim 1, wherein said cable is characterized by: the wear-resistant layer (1) is made of a wear-resistant ceramic coating material.

3. The low voltage power cable of claim 1, wherein said cable is characterized by: the protective layer (2) is made of hard rubber materials.

4. The low voltage power cable of claim 1, wherein said cable is characterized by: the flame-retardant layer (3) is made of glass fiber materials.

5. The low voltage power cable of claim 1, wherein said cable is characterized by: it is equipped with arc arch (14) towards cable conductor (7) one side to be interrupted equidistant on fire-retardant layer (3) inner wall, arc arch (14) inside fixed mounting has supplementary anti muscle (15) of rolling over, supplementary anti muscle (15) of rolling over is parallel with cable conductor (7) axis.

6. The low voltage power cable of claim 1, wherein said cable is characterized by: the cable is characterized in that a cable lead (7) corresponding to the positioning and embracing sleeve (5) is arranged in the positioning and embracing sleeve, an insulating sleeve (6) is coaxially sleeved on the outer surface of the cable lead (7), and the outer surface of the insulating sleeve (6) is connected with the positioning and embracing sleeve (5).

7. A low voltage power cable resistant to crushing and deformation according to claim 1, characterized in that: the buffer elastic strip (10) is designed to be hollow, and elastic filling materials (11) are installed inside the buffer elastic strip (10).