Composite flame-retardant HPVC cable protection pipe

Abstract

The utility model discloses a composite flame-retardant HPVC cable protection tube, which relates to the technical field of cables, comprises a wear-resistant shell, and is characterized in that a waterproof layer is fixedly connected in the wear-resistant shell, an outer flame-retardant layer is fixedly connected in the waterproof layer, an outer base plate is fixedly connected in the outer flame-retardant layer, and an inner base plate is fixedly connected in the outer base plate. An inner insulation layer is fixedly connected to the interior of the outer base plate, a plurality of inner base plates are fixedly connected to the interior of the inner insulation layer, and a plurality of I-shaped buffer plates are fixedly connected to the interior of the inner insulation layer. According to the composite flame-retardant HPVC cable protection pipe, the tensile property of the composite flame-retardant HPVC cable protection pipe is improved, the acting force borne by the outer pipe is absorbed, the damage of the external force to the inner pipe layer is reduced, the service life of the composite flame-retardant HPVC cable protection pipe is prolonged, and the inorganic matter filling material filled in the composite flame-retardant HPVC cable protection pipe can achieve good fireproof performance.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a composite flame-retardant HPVC cable protection tube. Background Art

[0002] Cables are electrical transmission devices consisting of one or more insulated conductors separated by an insulation layer and a sheath. They are typically used to transmit electrical energy, data, or signals from one location to another and are widely used in power systems, communication networks, electronic equipment, and other fields.

[0003] Currently, most power pipelines are laid underground and need to withstand ground pressure. During long-term use, they will be deformed by continuous external force, which can easily damage the cables inside the cables and affect the service life of the cables. For this reason, we propose a composite flame-retardant HPVC cable protection tube. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a composite flame-retardant HPVC cable protection tube, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a composite flame-retardant HPVC cable protection tube, including a wear-resistant outer shell, characterized in that: the interior of the wear-resistant outer shell is fixedly connected to a waterproof layer, the interior of the waterproof layer is fixedly connected to an outer flame-retardant layer, the interior of the outer flame-retardant layer is fixedly connected to an outer pad, the interior of the outer pad is fixedly connected to an inner insulating layer, the interior of the inner insulating layer is fixedly connected to multiple inner pads, the interior of the inner insulating layer is fixedly connected to multiple I-shaped buffer plates, one side of the multiple I-shaped buffer plates and the inner pad is fixedly connected to an inner base plate, the interior of the inner base plate is fixedly connected to glass fiber, the interior of the glass fiber is filled with inorganic filling material, and the interior of the glass fiber is provided with a cable body.

[0006] Preferably, a plurality of internal grooves are provided inside the outer pad, and a plurality of buffer springs are provided inside the internal grooves. One end of the buffer spring is fixedly connected to one side of the outer flame retardant layer, and the other end of the buffer spring is fixedly connected to the outer side of the inner insulating layer. Through the mutual cooperation of the buffer spring, the outer flame retardant layer and the cable body, when the composite flame retardant HPVC cable protection tube is squeezed by external force, preliminary buffering can be performed, thereby improving the adaptability of the composite flame retardant HPVC cable protection tube and protecting the cable body inside it.

[0007] Preferably, an air cavity is opened inside the inner pad, and further buffering can be performed through the cooperation between the inner pad, the air cavity and the I-shaped buffer plate, thereby protecting the interior of the composite flame-retardant HPVC cable protection tube.

[0008] Preferably, a plurality of ventilation holes are provided inside the I-shaped buffer plate, and the ventilation holes provided inside the I-shaped buffer plate are conducive to heat dissipation.

[0009] Preferably, the inorganic filling material is composed of alumina powder.

[0010] Preferably, the outer side of the glass fiber is coated with organic heat-resistant high-temperature silicone resin.

[0011] Preferably, the wear-resistant shell is made of polyvinyl chloride resin.

[0012] The utility model provides a composite flame-retardant HPVC cable protection tube, which has the following beneficial effects:

[0013] 1. The composite flame-retardant HPVC cable protection tube improves its tensile strength through the mutual cooperation of the outer pad, inner groove, buffer spring, I-shaped buffer plate and inner pad, absorbs the force acting on the outer tube, reduces the damage to the inner tube layer caused by external force, and increases the service life of the composite flame-retardant HPVC cable protection tube. The inorganic filling material filled inside and the outer flame-retardant layer can provide good fireproof performance, thereby improving the protection of the power pipeline to the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0016] In the figure: 1. Wear-resistant outer shell; 2. Waterproof layer; 3. Outer flame retardant layer; 4. Outer pad; 5. Internal groove; 6. Buffer spring; 7. I-shaped buffer plate; 8. Inner pad; 9. Air cavity; 10. Inner base plate; 11. Glass fiber; 12. Inorganic filling material; 13. Cable body; 14. Inner insulation layer. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] See also Figures 1 to 2The utility model provides a technical solution: a composite flame-retardant HPVC cable protection tube, comprising a wear-resistant outer shell 1, characterized in that: a waterproof layer 2 is fixedly connected to the inside of the wear-resistant outer shell 1, an outer flame-retardant layer 3 is fixedly connected to the inside of the waterproof layer 2, an outer pad 4 is fixedly connected to the inside of the outer pad 4, an inner insulating layer 14 is fixedly connected to the inside of the inner insulating layer 14, a plurality of inner pads 8 are fixedly connected to the inside of the inner insulating layer 14, a plurality of I-shaped buffer plates 7 are fixedly connected to the inside of the inner insulating layer 14, an inner base plate 10 is fixedly connected to one side of the plurality of I-shaped buffer plates 7 and the inner pad 8, a glass fiber 11 is fixedly connected to the inside of the inner base plate 10, an inorganic filling material 12 is filled in the glass fiber 11, and a cable body 13 is arranged inside the glass fiber 11;

[0019] The outer pad 4 is provided with a plurality of internal grooves 5, and a plurality of buffer springs 6 are provided inside the internal grooves 5. One end of the buffer spring 6 is fixedly connected to one side of the outer flame retardant layer 3, and the other end of the buffer spring 6 is fixedly connected to the outer side of the inner insulating layer 14. Through the mutual cooperation of the buffer spring 6, the outer flame retardant layer 3 and the cable body 13, when the composite flame retardant HPVC cable protection tube is squeezed by external force, preliminary buffering can be performed, thereby improving the adaptability of the composite flame retardant HPVC cable protection tube and protecting the cable body 13 inside it;

[0020] An air cavity 9 is provided inside the inner pad 8. The inner pad 8, the air cavity 9 and the I-shaped buffer plate 7 cooperate with each other to further provide buffering, thereby protecting the interior of the composite flame-retardant HPVC cable protection tube.

[0021] The I-shaped buffer plate 7 has a plurality of ventilation holes formed therein, which facilitate heat dissipation.

[0022] The inorganic filler material 12 is composed of alumina powder;

[0023] The outer side of the glass fiber 11 is coated with an organic heat-resistant high-temperature silicone resin;

[0024] The wear-resistant outer shell 1 is made of polyvinyl chloride resin.

[0025] In summary, when the composite flame-retardant HPVC cable protection tube is in use, the outer pad 4, the inner groove 5, the buffer spring 6, the I-shaped buffer plate 7 and the inner pad 8 cooperate with each other to absorb the force acting on the outer tube, thereby reducing the damage to the internal tube layer caused by the external force. The inorganic filling material 12 filled inside the glass fiber 11 and the organic high-temperature resistant silicone resin coated on the outside of the glass fiber 11 increase the flame retardant and heat-insulating effects of the composite flame-retardant HPVC cable protection tube.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A composite flame-retardant HPVC cable protection tube, comprising a wear-resistant outer shell (1), characterized in that: The wear-resistant outer shell (1) is fixedly connected to a waterproof layer (2) inside, the waterproof layer (2) is fixedly connected to an outer flame-retardant layer (3) inside, the outer flame-retardant layer (3) is fixedly connected to an outer pad (4) inside, the outer pad (4) is fixedly connected to an inner insulating layer (14) inside, the inner insulating layer (14) is fixedly connected to a plurality of inner pads (8) inside, the inner insulating layer (14) is fixedly connected to a plurality of I-shaped buffer plates (7) inside, one side of the plurality of I-shaped buffer plates (7) and the inner pad (8) is fixedly connected to an inner base plate (10), the inner base plate (10) is fixedly connected to a glass fiber (11), the glass fiber (11) is filled with an inorganic filling material (12), and the glass fiber (11) is provided with a cable body (13) inside.

2. The composite flame-retardant HPVC cable protection tube according to claim 1, characterized in that: The outer pad (4) is provided with a plurality of internal grooves (5), and a plurality of buffer springs (6) are provided inside the internal grooves (5). One end of the buffer spring (6) is fixedly connected to one side of the outer flame retardant layer (3), and the other end of the buffer spring (6) is fixedly connected to the outer side of the inner insulating layer (14).

3. The composite flame-retardant HPVC cable protection tube according to claim 1, characterized in that: An air cavity (9) is provided inside the inner pad (8).

4. The composite flame-retardant HPVC cable protection tube according to claim 1, characterized in that: A plurality of ventilation holes are provided inside the I-shaped buffer plate (7).

5. The composite flame-retardant HPVC cable protection tube according to claim 1, characterized in that: The inorganic filling material (12) is composed of aluminum oxide powder.

6. The composite flame-retardant HPVC cable protection tube according to claim 1, characterized in that: The outer side of the glass fiber (11) is coated with organic heat-resistant high-temperature silicone resin.

7. The composite flame-retardant HPVC cable protection tube according to claim 1, characterized in that: The wear-resistant outer shell (1) is made of polyvinyl chloride resin.

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