Waterproof cable for landscape lamp

Abstract

The utility model discloses a waterproof cable for a landscape lamp, which relates to the field of cables, aims to provide a cable capable of being used underwater, and adopts the technical scheme that the waterproof cable comprises a grounding wire and a power wire, wire cores of the grounding wire and the power wire adopt compound stranded conductors, insulating layers are arranged outside the compound stranded conductors, and after the grounding wire and the power wire are arranged in a bracket in a penetrating manner, the insulating layers are arranged outside the compound stranded conductors. A filling layer, a flame-retardant layer and a waterproof layer are arranged between the insulating layer and the support, a third filling layer is filled in the gap of the support, and a third waterproof layer, an anti-puncture layer and a sheath are arranged outside the support. By adopting the composite water-blocking conductor formed by soft tinning and water-blocking yarns, the softness of the wire rod can be maintained, and a longitudinal waterproof effect can be achieved; the filling layer on the cable core can achieve flame-retardant and waterproof effects, the support of the cable core can maintain the relative position of the cable core, the tensile strength of the cable can be improved, and the anti-puncture layer can effectively prevent animals in water from biting the cable. The utility model can be used by being soaked in water for a long time, and has little influence on the electrical property.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically a waterproof cable for landscape lighting. Background Technology

[0002] Landscape lighting equipment requires cables for power supply. For example, in the construction of parks and residential areas, water environment lighting such as fountains is often involved. In order to improve the aesthetics, lighting cables are often laid underwater. However, fish and other aquatic creatures are often kept in the water, which places high demands on the waterproof and tear-resistant properties of the cables. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a waterproof cable for landscape lights, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model discloses a waterproof cable for landscape lighting. The technical solution includes a power line and a grounding wire, both housed within a sheath. The power line includes a first conductor with a first insulation layer. The grounding wire includes a second conductor with a second insulation layer. The power line and grounding wire are located within a support frame, which includes a central frame and multiple planetary frames. Multiple planetary frames are located around and connected to the central frame. The power line is located within the planetary frames, and the grounding wire is located within the central frame. The support frame provides stable support for the cable and can maintain its integrity. The relative positions of the internal conductors are maintained. Between the power wire and the planetary carrier, there is a first filler layer, a first flame-retardant layer, and a first waterproof layer. Between the grounding wire and the center carrier, there is a second filler layer, a second flame-retardant layer, and a second waterproof layer. The filler layer protects the internal conductors, the flame-retardant layer reduces the probability of fire, and the waterproof layer prevents short circuits in the conductors when used underwater. The gaps between the multiple planetary carriers are filled with a third filler layer, which protects the internal conductors and maintains their roundness. Outside the third filler layer, a third waterproof layer, a puncture-resistant layer, and a sheath are sequentially arranged. The third waterproof layer prevents external water from seeping into the cable, and the puncture-resistant layer prevents underwater organisms from tearing the cable.

[0005] In a preferred embodiment of this invention, both the first conductor and the second conductor are twisted conductors of tin-plated soft copper wire and water-blocking yarn. The water-blocking yarn enables longitudinal water blocking.

[0006] As a preferred embodiment of this utility model, both the first insulating layer and the second insulating layer shown are modified EPDM rubber insulating layers, which can give the cable good flexibility while improving the cable's torsion resistance.

[0007] As a preferred embodiment of this utility model, the first filling layer and the second filling layer are halogen-free rubber strips; the third filling layer is halogen-free low-smoke polyolefin, and the halogen-free low-smoke polyolefin filler can achieve waterproof and flame-retardant effects.

[0008] As a preferred technical solution of this utility model, the first flame-retardant layer and the second flame-retardant layer are high flame-retardant fiberglass tapes.

[0009] As a preferred embodiment of this utility model, the first waterproof layer and the second waterproof layer are single-sided adhesive water-blocking strips; the third waterproof layer is made of TPO (thermoplastic polyolefin) material.

[0010] As a preferred embodiment of this invention, the puncture-resistant layer is a zinc-nickel alloy mesh layer.

[0011] As a preferred embodiment of this utility model, the sheath is a modified polyether polyurethane sheath.

[0012] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention, by employing a composite water-blocking conductor made of soft tin-plated material and water-blocking yarn, maintains the flexibility of the wire and provides longitudinal waterproofing. The first and second filler layers on the core protect the conductor, achieving a flame-retardant effect. The core support maintains the relative position of the cores and improves the tensile strength of the cable. The third filler layer and the third waterproof layer further enhance the flame-retardant and waterproofing effects. The waterproofing is radial, thus working in conjunction with the longitudinal waterproofing of the water-blocking yarn to achieve a bidirectional waterproofing effect. The puncture-resistant layer effectively prevents animals in the water from tearing the cable. This invention can be used after long-term immersion in water with minimal impact on its electrical performance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the support structure of this utility model.

[0015] In the figure: 1. First conductor; 2. First insulation layer; 3. First filler layer; 4. Support; 401. Central support; 402. Planetary support; 5. Second conductor; 6. Second insulation layer; 7. Second filler layer; 8. Third filler layer; 9. Third waterproof layer; 10. Puncture-resistant layer; 11. Sheath. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0017] like Figures 1 to 2 As shown, this utility model discloses a waterproof cable for landscape lights. The technical solution includes a wire core and a support 4. The wire core consists of one grounding wire and three power wires. The power wires include a first conductor 1, which is covered with a first insulation layer 2. The grounding wire includes a second conductor 5, which is covered with a second insulation layer 6. The support 4 is made of polyethylene and includes a central frame 401 and three planetary frames 402. The three planetary frames 402 are arranged around the central frame 401. The central frame 401 and the planetary frames 402 are arranged as follows: Figure 2 The frame-like cylindrical structure shown has a grounding wire running through a central frame 401 and three power wires running through three planetary carriers 402 respectively. A first filling layer 3 is filled between the first insulation layer 2 of the power wire and the planetary carrier 402, and a second filling layer 7 is filled between the second insulation layer 6 of the grounding wire and the central frame 401. The first insulation layer 2 and the second insulation layer 6 are made of modified EPDM rubber insulation. The first filling layer 3 and the second filling layer 7 are made of halogen-free rubber strips. Both the first filling layer 3 and the second filling layer 7 are wrapped with high flame-retardant fiberglass tape, and the high flame-retardant fiberglass tape is wrapped with a water-blocking tape with adhesive coating on the inside.

[0018] To improve the flame retardant and water-blocking properties of the cable, and to maintain the roundness of the cable, a third filler layer 8 is filled in the gap of the planetary carrier 402. The third filler layer 8 is made of halogen-free low-smoke polyolefin. To further improve the waterproof performance, a third waterproof layer 9 is extruded on the outside of the third filler layer 8. The third waterproof layer 9 is made of TPO material.

[0019] To prevent bites from aquatic creatures, a puncture-resistant layer 10 is applied over the third waterproof layer 9. The puncture-resistant layer 10 uses a zinc-nickel alloy mesh layer.

[0020] A sheath 11 made of modified polyether polyurethane is installed over the puncture-resistant layer 10.

[0021] The connection method involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to common knowledge.

[0022] Components not described in detail in this article are existing technologies.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof cable for landscape lighting, comprising a power line and a grounding wire, wherein both the power line and the grounding wire are enclosed in a sheath (11), characterized in that: The power line includes a first conductor (1) with a first insulation layer (2) outside; the grounding wire includes a second conductor (5) with a second insulation layer (6) outside; the power line and the grounding wire are located in a support (4), the support (4) including a central frame (401) and planetary carriers (402), there are multiple planetary carriers (402), which are located around the central frame (401) and connected to the central frame (401), the power line is located on the planetary carriers (401) In 02), the grounding wire is located in the central frame (401), and there is a first filling layer (3), a first flame retardant layer, and a first waterproof layer between the power line and the planetary carrier (402). There is a second filling layer (7), a second flame retardant layer, and a second waterproof layer between the grounding wire and the central frame (401). The gaps between the multiple planetary carriers (402) are filled with a third filling layer (8). A third waterproof layer (9), a puncture-resistant layer (10), and a sheath (11) are sequentially provided outside the third filling layer (8).

2. The waterproof cable for landscape lighting according to claim 1, characterized in that: Both the first conductor (1) and the second conductor (5) are twisted conductors of tin-plated soft copper wire and water-blocking yarn.

3. The waterproof cable for landscape lighting according to claim 2, characterized in that: Both the first insulating layer (2) and the second insulating layer (6) shown are modified EPDM rubber insulating layers.

4. The waterproof cable for landscape lighting according to claim 1, characterized in that: The first filler layer (3) and the second filler layer (7) are halogen-free rubber strips; the third filler layer (8) is halogen-free low-smoke polyolefin.

5. The waterproof cable for landscape lighting according to claim 1, characterized in that: The first flame-retardant layer and the second flame-retardant layer are high flame-retardant fiberglass tapes.

6. The waterproof cable for landscape lighting according to claim 1, characterized in that: The first and second waterproof layers are single-sided adhesive water-blocking tapes; the third waterproof layer (9) is made of TPO material.

7. The waterproof cable for landscape lighting according to claim 1, characterized in that: The puncture-resistant layer (10) is a zinc-nickel alloy mesh layer.

8. The waterproof cable for landscape lighting according to claim 1, characterized in that: The sheath (11) is a modified polyether polyurethane sheath.

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