Composite cable

Abstract

The utility model discloses a composite cable, and belongs to the field of cables. Comprising an insulating outer layer, an insulating inner layer and a cable layer, the cable layer is located in the insulating inner layer, the insulating inner layer is located in the insulating outer layer, a pigment layer is arranged between the insulating inner layer and the insulating outer layer, and the pigment layer is filled with liquid pigment. The problem that a user cannot quickly find a crack or a damaged part due to the fact that the crack or the damaged part is relatively small when whether an external insulation sleeve of a cable is cracked or damaged is checked is solved.

Description

Technical Field

[0001] The utility model relates to the field of cables, in particular to a composite cable. Background Art

[0002] At present, the composite cables on the market are usually composed of an outer insulating sheath, a filling layer, an inner insulating sheath, a wire core and a functional layer. The filling layer supports the wire core, the outer insulating sheath and the inner insulating sheath insulate and protect the wire core, and the functional layer gives the cable specified functions.

[0003] For example, a waterproof rubber-sheathed cable is disclosed in Chinese patent publication number CN218513215U. The utility model relates to the technical field of soft cables, and specifically to a waterproof rubber-sheathed cable, comprising a wire core, the wire core comprising a conductor and an insulating layer extruded on the outer wall of the conductor, the conductor comprising a multi-layer twisted structure arranged from the inside to the outside, and each layer of the twisted structure is provided with a water-blocking tape at intervals along the length direction of the conductor; the outer wall of each layer of the twisted structure of the conductor is coated with a semi-conductive water-blocking tape, and the water-blocking tape is coated on the outer wall of the single-layer twisted structure of the conductor at equal intervals along the length direction of the conductor, and the water-blocking tapes coated on the outer walls of the adjacent two layers of the twisted structure are arranged at intervals along the length direction of the conductor. Compared with the prior art, the water-blocking filler is densely filled in the gap of the twisted structure, so that the contact area between the copper conductors of the multi-layer twisted structure is increased, while achieving the radial waterproof effect of the conductor, the contact area between the copper conductors is increased, the resistance is reduced, and thus the power loss is reduced.

[0004] However, when checking whether the outer insulation sheath of the cable is cracked or damaged, the cracked or damaged part is often small, making it difficult for the user to quickly discover the cracked or damaged part. Summary of the Invention

[0005] The purpose of the present invention is to provide a composite cable to solve the problem that when checking whether the outer insulation sheath of the cable is cracked or damaged, the user is often unable to quickly find the cracked or damaged area because the cracked or damaged area is small.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: it includes an insulating outer layer, an insulating inner layer and a cable layer, the cable layer is located inside the insulating inner layer, the insulating inner layer is located inside the insulating outer layer, and a pigment layer is provided between the insulating inner layer and the insulating outer layer, and the pigment layer is filled with liquid pigment.

[0007] Furthermore, the inner wall of the insulating outer layer is provided with a plurality of storage grooves for storing liquid pigments.

[0008] Furthermore, the outer wall of the insulating inner layer is connected to a plurality of raised portions with arc-shaped cross sections, and the protruding parts of the raised portions are in contact with the receiving grooves.

[0009] Furthermore, an elastic sheet is provided between the protruding portions, the elastic sheet is connected to the inner wall of the insulating outer layer, and the inner space of the elastic sheet is filled with liquid pigment.

[0010] Furthermore, the cable layer includes a second wire core and a plurality of first wire cores, and the first wire cores surround the second wire cores.

[0011] Furthermore, the outer wall of the second core is provided with a polygonal limit frame, each outer wall of the limit frame is provided with an inwardly recessed arc groove, and the first core is placed inside each arc groove.

[0012] Furthermore, a clamp is provided on the outside of the first wire core, and the clamp is circular and clamped on the outer wall of the first wire core.

[0013] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] 1. When the insulating outer layer of the utility model is broken, the liquid pigment inside the storage groove or the liquid pigment inside the elastic sheet flows out according to the broken cracks according to the broken position, leaving traces on the outer wall of the insulating outer layer, which is convenient for staff to check. In addition, the setting of the protrusion and the elastic sheet effectively improves the buffering effect of the cable, thereby increasing the service life of the cable.

[0015] 2. The utility model sets a limit frame, the second wire core is set inside the limit frame, and multiple first wire cores are set outside the limit frame, and are fixedly connected by clamps, which is convenient for improving the stability of the connection between the wire cores and can effectively avoid the occurrence of entanglement and confusion between the wire cores. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional structural diagram of the utility model;

[0017] Figure 2 For this utility model Figure 1 The enlarged structural diagram of area a in the middle;

[0018] Figure 3 This is a structural diagram of the connection between the insulating outer layer and the insulating inner layer of the utility model;

[0019] Figure 4 This is a diagram of the cable layer structure of the utility model;

[0020] In the accompanying drawings, 1, insulating outer layer; 2, insulating inner layer; 3, cable layer; 4, pigment layer; 11, storage groove; 31, clamp; 32, first wire core; 33, limit frame; 34, second wire core; 41, elastic sheet; 42, raised portion; 341, arc groove. DETAILED DESCRIPTION

[0021] The specific implementation of the utility model is further described below with reference to the accompanying drawings.

[0022] See Figure 1 A composite cable includes an outer insulating layer 1, an inner insulating layer 2, and a cable layer 3. The cable layer 3 is located inside the inner insulating layer 2, which is located inside the outer insulating layer 1. A pigment layer 4 is provided between the inner insulating layer 2 and the outer insulating layer 1. The pigment layer 4 is filled with liquid pigment. This solves the problem of not being able to quickly detect cracks or damage to the outer insulating sheath of a cable due to the small size of the cracks or damage.

[0023] See Figure 1-Figure 3 The inner wall of the insulating outer layer 1 is provided with a plurality of storage grooves 11 for storing liquid pigments; the outer wall of the insulating inner layer 2 is connected with a plurality of raised portions 42 with arc-shaped cross sections, and the protruding portions of the raised portions 42 are in contact with the storage grooves 11; an elastic sheet 41 is provided between the raised portions 42, and the elastic sheet 41 is connected to the inner wall of the insulating outer layer 1, and the internal space of the elastic sheet 41 is filled with liquid pigments; when the insulating outer layer 1 is broken, according to the damaged position, the liquid pigment inside the storage groove 11 or the liquid pigment inside the elastic sheet 41 flows out according to the damaged cracks, leaving traces on the outer wall of the insulating outer layer 1, which is convenient for staff to check, and the arrangement of the raised portions 42 and the elastic sheet 41 effectively improves the buffering effect of the cable, thereby increasing the service life of the cable.

[0024] See Figure 4 The cable layer 3 includes a second core 34 and multiple first cores 32, and the first core 32 is surrounded by the second core 34; the outer wall of the second core 34 is provided with a polygonal limit frame 33, and each outer wall of the limit frame 33 is provided with an inwardly recessed arc groove 341, and a first core 32 is placed inside each arc groove 341; the outside of the first core 32 is provided with a clamp 31, and the clamp 31 is circularly clamped to the outer wall of the first core 32; through the set limit frame 33, the second core 34 is arranged inside the limit frame 33, and the multiple first cores 32 are arranged outside the limit frame 33, and the clamp 31 is used for fixed connection, which is convenient for improving the stability of the connection between the cores and can effectively avoid the occurrence of entanglement and confusion between the cores.

[0025] The above description is a detailed description of the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modifications completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A composite cable, characterized in that: The invention comprises an insulating outer layer (1), an insulating inner layer (2) and a cable layer (3), wherein the cable layer (3) is located inside the insulating inner layer (2), and the insulating inner layer (2) is located inside the insulating outer layer (1). A pigment layer (4) is provided between the insulating inner layer (2) and the insulating outer layer (1), and the pigment layer (4) is filled with liquid pigment.

2. A composite cable according to claim 1, characterized in that: The inner wall of the insulating outer layer (1) is provided with a plurality of receiving grooves (11) for receiving liquid pigments.

3. The composite cable according to claim 1, characterized in that: The outer wall of the insulating inner layer (2) is connected to a plurality of raised portions (42) arranged in an arc-shaped cross section, and the protruding portions of the raised portions (42) are in contact with the receiving grooves (11).

4. A composite cable according to claim 3, characterized in that: An elastic sheet (41) is provided between the raised portions (42), the elastic sheet (41) is connected to the inner wall of the insulating outer layer (1), and the inner space of the elastic sheet (41) is filled with liquid pigment.

5. The composite cable according to claim 1, characterized in that: The cable layer (3) comprises a second wire core (34) and a plurality of first wire cores (32), wherein the first wire cores (32) surround the second wire core (34).

6. A composite cable according to claim 5, characterized in that: The outer wall of the second wire core (34) is provided with a polygonal limiting frame (33), each outer wall of the limiting frame (33) is provided with an inwardly recessed arc groove (341), and the first wire core (32) is placed inside each arc groove (341).

7. A composite cable according to claim 6, characterized in that: A clamp (31) is provided on the outside of the first wire core (32), and the clamp (31) is circular and clamped on the outer wall of the first wire core (32).

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