PE cable protection pipe

Abstract

The utility model discloses a PE cable protection pipe comprising a structure main body which comprises an external protection pipe, an internal protection pipe and a cable which are arranged in a combined manner. The cable is arranged in the internal protection tube in a penetrating mode, the internal protection tube is arranged in the external protection tube, a plurality of supporting pieces are arranged between the external protection tube and the internal protection tube, and a plurality of sets of pressure buffering through holes are formed in the external protection tube. The inner side of the internal protection tube is sequentially provided with an anti-torsion layer and a flame-retardant layer, and the flame-retardant layer is arranged outside the cable in a wrapping manner; through the combined arrangement of the external protection tube and the internal protection tube, dual protection is carried out on the cable; and through the arrangement of the anti-torsion layer, the anti-torsion layer is formed by spirally winding sheet-shaped steel strips, and meanwhile, the anti-compression and anti-torsion effects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable protection tubes, in particular to a PE cable protection tube. Background Art

[0002] Wires and cables are wire products used to transmit electrical (magnetic) energy, information, and achieve electromagnetic energy conversion. Wires and cables in a broad sense are also simply called cables. In a narrower sense, cables refer to insulated cables, which can be defined as a collection of the following components: one or more insulated wire cores, and their respective coatings, overall protective layers, and outer sheaths. Cables may also have additional uninsulated conductors. Cable protection conduits are cable protection devices used in underground power and communication cable installations to protect the cables from external pressure or collisions. They are widely used in power cable projects, power transmission and transformation construction projects, communication and optical cable line projects, cable projects for airports, transportation bridges, industrial parks, and underground municipal construction.

[0003] However, most cable protection tubes in the prior art have simple structures, which makes them easily affected by external factors and causes damage to the cables inside. Utility Model Content

[0004] The purpose of the present utility model is to provide a PE cable protection tube in order to solve the above problems.

[0005] The utility model achieves the above-mentioned object through the following technical solutions: a PE cable protection tube, comprising a structural body, wherein the structural body comprises an outer protection tube, an inner protection tube and a cable arranged in combination;

[0006] The cable is inserted into the inner protection tube, the inner protection tube is arranged in the outer protection tube, a plurality of supports are arranged between the outer protection tube and the inner protection tube, and a plurality of pressure-relieving through holes are arranged in the outer protection tube;

[0007] The inner side of the internal protection tube is provided with an anti-torsion layer and a flame retardant layer in sequence, and the flame retardant layer is provided on the outside of the cable in a covering manner.

[0008] Preferably, the outer protection tube, the inner protection tube and the cable are arranged in concentric circles.

[0009] Preferably, a plurality of groups of the pressure-relieving through holes are evenly arranged in the external protective tube.

[0010] Preferably, the support member is a sheet-like structure, and a plurality of the support members are evenly distributed around the circumference.

[0011] Preferably, the anti-torsion layer is formed by spirally winding a sheet steel belt.

[0012] Preferably, the surface of the external protection tube is provided with a plurality of evenly distributed anti-slip grooves.

[0013] Preferably, the cable consists of a cable core and a skin layer which is arranged on the outside of the cable core in a covering manner, and the flame retardant layer is arranged on the outside of the skin layer.

[0014] The beneficial effects of the utility model are:

[0015] 1. The cable is double protected by the combination of external protection tube and internal protection tube;

[0016] 2. The combination of the pressure-relieving through hole and the support member plays a role in resisting and relieving pressure;

[0017] 3. Through the setting of the anti-torsion layer, the anti-torsion layer is formed by spirally winding sheet steel belts, which plays the role of anti-compression and anti-torsion at the same time;

[0018] 4. The flame retardant layer plays a role in flame retardancy protection;

[0019] 5. Anti-skid grooves are set on the surface of the external protective tube to prevent slipping during installation and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the PE cable protection tube of the utility model;

[0021] Figure 2 This is a cross-sectional view of the PE cable protection tube of the utility model;

[0022] Figure 3 This is a side view of the PE cable protection tube of the utility model.

[0023] Diagram:

[0024] 1. External protective tube; 2. Internal protective tube; 3. Anti-torsion layer; 4. Support member; 5. Pressure-relieving hole; 6. Anti-slip groove; 7. Cable; 8. Flame-retardant layer. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figure 1-3 As shown:

[0027] In this embodiment, a PE cable protection tube includes a structural body, which includes an outer protective tube 1, an inner protective tube 2 and a cable 7 that are arranged in combination. The outer protective tube 1 and the inner protective tube 2 are combined to provide dual protection for the cable 7; the cable 7 is inserted into the inner protective tube 2, and the inner protective tube 2 is arranged in the outer protective tube 1; a plurality of support members 4 are provided between the outer protective tube 1 and the inner protective tube 2; a plurality of groups of pressure-relieving through holes 5 are provided in the outer protective tube 1; the arrangement of the support members 4 provides a pressure-resistant effect; the arrangement of the pressure-relieving through holes 5 provides a pressure-relieving effect; an anti-torsion layer 3 and a flame-retardant layer 8 are provided on the inner side of the inner protective tube 2 in sequence; the flame-retardant layer 8 is wrapped around the outside of the cable 7; the arrangement of the anti-torsion layer 3 provides a torsion-resistant effect; the arrangement of the flame-retardant layer 8 provides a fire-retardant effect.

[0028] Among them, the external protective tube 1, the internal protective tube 2 and the cable 7 are arranged in a concentric circle distribution, and the cable 7 is doubly protected by the external protective tube 1 and the internal protective tube 2; multiple groups of the pressure-relieving through holes 5 are evenly arranged in the external protective tube 1, and the cable 7 is pressure-relieving protected from multiple directions by the setting of multiple groups of the pressure-relieving through holes 5; the support member 4 is a sheet structure, and several of the support members 4 are evenly distributed around the circumference; the anti-torsion layer 3 is formed by spirally winding a sheet steel belt, and the setting of the anti-torsion layer 3 improves the compression resistance and torsion resistance of the cable 7 at the same time; the surface of the external protective tube 1 is provided with a plurality of evenly distributed anti-slip grooves 6, and by setting the anti-slip grooves 6 on the surface of the external protective tube 1, it plays an anti-slip role during installation and storage; the cable 7 consists of a cable core and a skin layer wrapped around the outside of the cable core, and the flame retardant layer 8 is arranged outside the skin layer.

[0029] Working principle:

[0030] Through the combination of the external protective tube 1 and the internal protective tube 2, the external protective tube 1 is sleeved on the outside of the internal protective tube 2, and the internal protective tube 2 is sleeved on the outside of the cable 7. The cable 7 is doubly protected by the external protective tube 1 and the internal protective tube 2. The combination of the pressure-relieving through hole 5 and the support 4 plays a role in resisting pressure and relieving pressure. Through the setting of the anti-torsion layer 3, the anti-torsion layer 3 is spirally wound by a sheet steel belt, and plays a role in resisting pressure and torsion at the same time. Through the setting of the flame retardant layer 8, it plays a role in flame retardancy. By arranging the anti-skid groove 6 on the surface of the external protective tube 1, it plays an anti-skid role during installation and storage.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0032] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A PE cable protection tube, characterized in that: The invention comprises a structural body, wherein the structural body comprises an outer protection tube (1), an inner protection tube (2) and a cable (7) which are arranged in combination; The cable (7) is inserted into the inner protection tube (2), the inner protection tube (2) is arranged in the outer protection tube (1), a plurality of support members (4) are arranged between the outer protection tube (1) and the inner protection tube (2), and a plurality of groups of pressure-relieving through holes (5) are arranged in the outer protection tube (1); The inner side of the internal protection tube (2) is provided with an anti-torsion layer (3) and a flame retardant layer (8) in sequence, and the flame retardant layer (8) is provided in a covering manner on the outside of the cable (7).

2. A PE cable protection tube according to claim 1, characterized in that: The outer protection tube (1), the inner protection tube (2) and the cable (7) are arranged in a concentric circle distribution.

3. The PE cable protection tube according to claim 1, characterized in that: A plurality of groups of the pressure-relieving through holes (5) are evenly arranged in the external protection tube (1).

4. The PE cable protection tube according to claim 1, characterized in that: The support member (4) is a sheet-like structure, and a plurality of the support members (4) are evenly distributed around the circumference.

5. The PE cable protection tube according to claim 1, characterized in that: The anti-torsion layer (3) is formed by spirally winding a sheet steel belt.

6. The PE cable protection tube according to claim 1, characterized in that: The surface of the external protection tube (1) is provided with a plurality of evenly distributed anti-slip grooves (6).

7. The PE cable protection tube according to claim 1, characterized in that: The cable (7) comprises a cable core and a skin layer that is arranged on the outside of the cable core in a sheathing manner, and the flame retardant layer (8) is arranged on the outside of the skin layer.

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