Underwater cleaning robot cable

Abstract

The utility model relates to an underwater cleaning robot cable, and belongs to the technical field of cables. According to the technical scheme, the cable comprises a conductor (1), polypropylene insulation (2), a high-density polyethylene inner sheath (3) and a foaming polyurethane sheath (4), the polypropylene insulation (2) is extruded outside the conductor (1) to form an insulation wire core, a plurality of insulation wire cores are cabled, the high-density polyethylene inner sheath (3) is extruded outside the cabled wire core, and the foaming polyurethane outer sheath (4) is extruded outside the high-density polyethylene inner sheath (3). The cable has the advantages that the cable sheath is a double-layer sheath composed of the high-density polyethylene inner sheath and the foaming polyurethane sheath, compared with a traditional flexible sheath material, the high-density polyethylene inner sheath is good in rebound resilience and can solve the problem of knotting caused by bending and rotating of the cable, and the foaming polyurethane outer sheath is good in wear resistance and waterproof performance.

Description

Technical Field

[0001] The utility model relates to an underwater cleaning robot cable and belongs to the technical field of cables. Background Art

[0002] Swimming pools are places for cooling off and exercising in the summer. As the usage time increases, dirt and bacteria gradually accumulate in the swimming pool. In addition to changing the water quality, the swimming pool needs to be cleaned. The most advanced method is to use a robot to clean the swimming pool wall. Due to the lack of special supporting cables, the supporting cables for swimming robots are generally ordinary waterproof flexible cables. During the operation of the robot, the cable will become knotted due to its own weight and bending and rotation, affecting the robot's cleaning operation. Utility Model Content

[0003] The purpose of the utility model is to provide an underwater cleaning robot cable, the cable sheath is a double-layer sheath structure, the high-density polyethylene inner sheath has good resilience compared to traditional flexible sheath materials, and the foamed polyurethane outer sheath has good wear resistance and waterproof performance, thereby solving the above-mentioned problems existing in the background technology.

[0004] The technical solution of the utility model is:

[0005] An underwater cleaning robot cable comprises a conductor, polypropylene insulation, a high-density polyethylene inner sheath and a foamed polyurethane sheath. The conductor is extruded with polypropylene insulation to form an insulating core. A plurality of insulating cores are cabled. A high-density polyethylene inner sheath is extruded outside the cabled core. The high-density polyethylene inner sheath is extruded with a foamed polyurethane outer sheath.

[0006] Furthermore, the foamed polyurethane outer sheath is made of closed-cell foamed polyurethane.

[0007] Furthermore, the conductor is a tinned copper conductor.

[0008] Furthermore, the number of the insulating cores is two, and the two insulating cores are arranged side by side.

[0009] The positive effects of the utility model are as follows: the cable sheath is a double-layer sheath composed of a high-density polyethylene inner sheath and a foamed polyurethane sheath. Compared with traditional flexible sheath materials, the high-density polyethylene inner sheath has good resilience and can solve the problem of knots caused by cable bending and rotation. The foamed polyurethane outer sheath has good wear resistance and waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] In the figure: conductor 1, polypropylene insulation 2, high-density polyethylene inner sheath 3, foamed polyurethane outer sheath 4. DETAILED DESCRIPTION

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0013] Refer to the attached Figure 1 This embodiment provides an underwater cleaning robot cable, comprising a conductor 1, a polypropylene insulation 2, a high-density polyethylene inner sheath 3 and a foamed polyurethane sheath 4. The conductor 1 is extruded with a polypropylene insulation 2 to form an insulating core. The two insulating cores are arranged side by side for cabling. The high-density polyethylene inner sheath 3 is extruded outside the cable, and the high-density polyethylene inner sheath 3 is extruded with a foamed polyurethane outer sheath 4.

[0014] The conductor 1 is a tinned copper conductor.

[0015] The foamed polyurethane outer sheath 4 is made of closed-cell foamed polyurethane.

[0016] The high-density polyethylene inner sheath 3 is a non-hydrophilic material with good mechanical properties and high hardness. The high-density polyethylene inner sheath 3 is filled into the interior of the insulating core by extrusion, which not only plays a protective role as a filling sheath, but also has good resilience compared to traditional flexible sheath materials, and can solve the problem of knots caused by cable bending and rotation.

[0017] The foamed polyurethane outer sheath 4 has good wear resistance and waterproof performance. Compared with the traditional polyurethane sheath, the foamed polyurethane sheath adopts closed-cell foaming physical technology, specifically, a special chemical foaming agent is added to the polyether modified polyurethane sheath material, and the ratio of the foaming agent to the polyurethane sheath is 2-5%. The foamed polyurethane sheath is extruded through the high temperature and pressure of the extruder. The specific gravity of the foamed polyurethane outer sheath is 0.6-0.8g / cm3.

[0018] The specific gravity of the polypropylene insulation, high-density polyethylene inner sheath, and foamed polyurethane outer sheath is less than that of water. The overall cable specific gravity is less than that of water. The cable can automatically stand upright in water, reducing the problem of easy entanglement of the cable due to robot operation.

Claims

1. An underwater cleaning robot cable, characterized in that: The invention comprises a conductor (1), a polypropylene insulation (2), a high-density polyethylene inner sheath (3) and a foamed polyurethane sheath (4); the conductor (1) is extruded with a polypropylene insulation (2) to form an insulated wire core; a plurality of insulated wire cores are cabled; a high-density polyethylene inner sheath (3) is extruded outside the cabled wire core; and the high-density polyethylene inner sheath (3) is extruded with a foamed polyurethane outer sheath (4).

2. The underwater cleaning robot cable according to claim 1, characterized in that: The foamed polyurethane outer sheath (4) is made of closed-cell foamed polyurethane.

3. An underwater cleaning robot cable according to claim 1 or 2, characterized in that: The conductor (1) is a tinned copper conductor.

4. An underwater cleaning robot cable according to claim 1 or 2, characterized in that: The number of the insulating wire cores is two, and the two insulating wire cores are arranged side by side.

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