Flexible pressure-resistant flame-retardant cable

Abstract

The utility model discloses a flexible pressure-resistant flame-retardant cable, and relates to the technical field of power cables. The flexible pressure-resistant flame-retardant cable comprises the outer sheath, the conductor and the pressure-resistant assembly, the armor layer is pasted and fixed on the inner wall of the outer sheath, the flame-retardant layer is arranged in the armor layer, and the arrangement of the outer sheath enables the cable to have good oil resistance, corrosion resistance and wear resistance, and is suitable for severe environments such as organic solvents and oils. An insulating layer is pasted and fixed on the inner wall of the flame-retardant layer, seven groups of mineral oxygen barrier layers are pasted and fixed in the insulating layer, and a group of cavities are formed between the armor layer and the flame-retardant layer. Through the cooperative use of the armor layer, the high-strength air bag, the filling fiber and the telescopic sleeve, the flexible cable can play a role in protecting the conductors, also enhances the pressure resistance of the flexible cable, can bear long-term bending and extrusion, and is free of fracture or damage, and through the arrangement of the outer sheath, the cable has better oil resistance, corrosion resistance and wear resistance, and the service life of the cable is prolonged. The method is suitable for organic solvent, oil and other severe environments.

Description

Technical Field

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

[0002] Flexible cables are the preferred cables for power transmission materials and signal transmission carriers in drag chain motion systems. They are also known as drag chain cables, towing cables, mobile cables and robot cables.

[0003] A flexible flame-retardant fireproof cable with publication number CN215643807U specifically relates to the field of cable technology, including a conductor and a flame-retardant layer installed on the outside of the conductor, the outside of the flame-retardant layer is provided with a plurality of grooves distributed along the axial direction of the conductor, the flame-retardant layer is penetrated with a plurality of slots connecting the grooves, a fire-extinguishing layer is provided between adjacent slots, an armor layer is provided on the surface of the fire-extinguishing layer, a fire-extinguishing device is provided in the fire-extinguishing layer; the fire-extinguishing device includes a plate body, a fire-extinguishing ball is connected to the outside of the plate body, and a trigger layer is provided at the connection between the fire-extinguishing ball and the plate body. The utility model is provided with a fire-extinguishing device, and the fire-extinguishing ball will transport the fire-extinguishing gas into the plate body under the action of pressure, and the fire-extinguishing hole in the plate body is used to divert the fire-extinguishing gas, so as to realize the fire-extinguishing operation in the external fire area, thereby avoiding the cable from being baked by the flame, ensuring the integrity of the internal structure, and having high safety and stability.

[0004] The above-mentioned flexible flame retardant and fireproof cable adopts multiple structures or material layers to achieve flame retardant and fireproof effects. Flexible cables are mostly used for dragging. The above-mentioned flexible cable has poor pressure resistance and its service life is greatly reduced. Utility Model Content

[0005] The utility model aims to provide a flexible pressure-resistant flame-retardant cable, which can solve the problem that the pressure-resistant effect of the above-mentioned flexible cable is poor and its service life is greatly reduced.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a flexible pressure-resistant flame-retardant cable, comprising:

[0007] An outer sheath, an armor layer is pasted and fixed to the inner wall of the outer sheath, a flame retardant layer is arranged inside the armor layer, an insulating layer is pasted and fixed to the inner wall of the flame retardant layer, seven groups of mineral oxygen-isolating layers are pasted and fixed inside the insulating layer, and a group of cavities are formed between the armor layer and the flame retardant layer;

[0008] Conductors are glued and fixed inside the mineral oxygen-isolating layer. There are forty-nine conductors in a group of seven, with a total of seven groups.

[0009] The pressure-resistant component is arranged in the cavity formed between the armor layer and the flame-retardant layer. The pressure-resistant component includes high-strength airbags. The number of the high-strength airbags is four and they are arranged in the cavity in a ring shape.

[0010] Preferably, the pressure-resistant component also includes filling fibers and telescopic sleeves. The number of the telescopic sleeves is four and they are arranged in a ring shape in the cavity. The two ends of the telescopic sleeves are respectively fixedly connected to the inner wall of the armor layer and the outer wall of the flame-retardant layer. The high-strength airbags and the telescopic sleeves are staggered. The space formed between the high-strength airbags and the telescopic sleeves and the cavity is filled with filling fibers, which can protect the conductor and enhance the pressure resistance of the flexible cable. The cable can withstand long-term bending and extrusion without rupture or damage.

[0011] Preferably, the insulating layer and the mineral oxygen-isolating layer form six groups of fan-shaped cavities, and fan-shaped frames are fixedly installed in the fan-shaped cavities to play a supporting role.

[0012] Preferably, six groups of triangular cavities are formed between the seven groups of mineral oxygen-isolating layers, and a tripod is fixedly installed in the triangular cavity to play a supporting role.

[0013] Preferably, the interiors of the fan-shaped frame and the tripod are filled with filling ropes.

[0014] Preferably, the conductor is a copper core stranded conductor, the insulation layer is a magnesium oxide insulation layer, the armor layer is a stainless steel strip material, and the outer sheath is a chloroprene rubber material.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The flexible pressure-resistant flame-retardant cable, through the coordinated use of the armor layer, high-strength airbag, filling fiber and telescopic sleeve, can protect the conductor and enhance the pressure resistance of the flexible cable. It can withstand long-term bending and extrusion without cracking or damage. The setting of the outer sheath makes the cable have good oil resistance, corrosion resistance and wear resistance, and is suitable for harsh environments such as organic solvents and oils.

[0017] (2) The flexible pressure-resistant flame-retardant cable can protect the conductor through the coordinated use of the filling rope, the mineral oxygen-isolating layer, the fan-shaped frame and the tripod. When encountering external impact or extrusion, it can also reduce the deformation of the conductor to a certain extent, thereby extending the service life of the flexible cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a three-dimensional diagram of the utility model;

[0021] Figure 3 It is an enlarged view of part A of the utility model;

[0022] Figure 4 It is an enlarged view of part B of the present utility model.

[0023] Figure numerals: 1. outer sheath; 2. armor layer; 3. high-strength airbag; 4. filling fiber; 5. telescopic sleeve; 6. flame retardant layer; 7. filling rope; 8. insulating layer; 9. mineral oxygen barrier layer; 10. conductor; 11. fan-shaped frame; 12. tripod. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] See also Figure 1-4 The utility model provides a technical solution: a flexible pressure-resistant flame-retardant cable, comprising an outer sheath 1, a conductor 10 and a pressure-resistant component. An armor layer 2 is pasted and fixed to the inner wall of the outer sheath 1, and a flame-retardant layer 6 is arranged inside the armor layer 2. The arrangement of the outer sheath 1 makes the cable have good oil resistance, corrosion resistance and wear resistance, and is suitable for harsh environments such as organic solvents and oils. An insulating layer 8 is pasted and fixed to the inner wall of the flame-retardant layer 6, and seven groups of mineral oxygen-isolating layers 9 are pasted and fixed inside the insulating layer 8. A group of cavities is formed between the armor layer 2 and the flame-retardant layer 6; the conductor 10 is pasted and fixed inside the mineral oxygen-isolating layer 9, the number of conductors 10 is forty-nine and each seven are in a group, and there are seven groups in total; the pressure-resistant component is arranged in the cavity formed between the armor layer 2 and the flame-retardant layer 6, and the pressure-resistant component includes a high-strength airbag 3, and the number of the high-strength airbag 3 is four groups and is arranged in the cavity in a ring shape.

[0026] The pressure-resistant component also includes filling fibers 4 and telescopic sleeves 5. The number of telescopic sleeves 5 is four groups and they are arranged in a ring shape in the cavity. The two ends of the telescopic sleeves 5 are fixedly connected to the inner wall of the armor layer 2 and the outer wall of the flame-retardant layer 6 respectively. The high-strength airbags 3 and the telescopic sleeves 5 are staggered. The space formed between the high-strength airbags 3 and the telescopic sleeves 5 and the cavity is filled with filling fibers 4. Through the coordinated use of the armor layer 2, the high-strength airbags 3, the filling fibers 4 and the telescopic sleeves 5, the conductor 10 can be protected, and the pressure resistance of the flexible cable can be enhanced. It can withstand long-term bending and extrusion without rupture or damage. The insulating layer 8 and the mineral oxygen barrier layer 9 form six groups of fans. shaped cavity, a fan-shaped frame 11 is fixedly installed in the fan-shaped cavity, six groups of triangular cavities are formed between the seven groups of mineral oxygen-isolating layers 9, a tripod 12 is fixedly installed in the triangular cavity, and the interiors of the fan-shaped frame 11 and the tripod 12 are filled with filling ropes 7. Through the coordinated use of the filling rope 7, the mineral oxygen-isolating layer 9, the fan-shaped frame 11 and the tripod 12, the conductor 10 can be protected. When encountering external force impact or extrusion, the deformation of the conductor 10 can be reduced to a certain extent, thereby extending the service life of the flexible cable. The conductor 10 is a copper core twisted conductor, the insulating layer 8 is a magnesium oxide insulating layer, the armor layer 2 is a stainless steel belt material, and the outer sheath 1 is a chloroprene rubber material.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A flexible pressure-resistant flame-retardant cable, characterized in that: include: An outer sheath (1), an armor layer (2) is glued and fixed to the inner wall of the outer sheath (1), a flame retardant layer (6) is arranged inside the armor layer (2), an insulating layer (8) is glued and fixed to the inner wall of the flame retardant layer (6), seven groups of mineral oxygen-isolating layers (9) are glued and fixed inside the insulating layer (8), and a group of cavities is formed between the armor layer (2) and the flame retardant layer (6); Conductors (10) are glued and fixed inside the mineral oxygen-isolating layer (9), the number of conductors (10) is 49 and each group is seven, with a total of seven groups; The pressure-resistant component is arranged in a cavity formed between the armor layer (2) and the flame-retardant layer (6), and the pressure-resistant component includes high-strength airbags (3). The number of the high-strength airbags (3) is four groups and they are arranged in a ring shape in the cavity.

2. A flexible pressure-resistant flame-retardant cable according to claim 1, characterized in that: The pressure-resistant component also includes filling fibers (4) and telescopic sleeves (5). The number of the telescopic sleeves (5) is four and they are arranged in a ring shape in the cavity. The two ends of the telescopic sleeves (5) are respectively fixedly connected to the inner wall of the armor layer (2) and the outer wall of the flame retardant layer (6). The high-strength airbags (3) and the telescopic sleeves (5) are arranged in a staggered manner. The space formed between the high-strength airbags (3) and the telescopic sleeves (5) and the cavity is filled with filling fibers (4).

3. A flexible pressure-resistant flame-retardant cable according to claim 2, characterized in that: The insulating layer (8) and the mineral oxygen-isolating layer (9) form six groups of fan-shaped cavities, and fan-shaped frames (11) are fixedly installed in the fan-shaped cavities.

4. A flexible pressure-resistant flame-retardant cable according to claim 3, characterized in that: Six groups of triangular cavities are formed between the seven groups of mineral oxygen-isolating layers (9), and a tripod (12) is fixedly installed in the triangular cavities.

5. A flexible pressure-resistant flame-retardant cable according to claim 4, characterized in that: The interiors of the fan-shaped frame (11) and the tripod (12) are both filled with filling ropes (7).

6. A flexible pressure-resistant flame-retardant cable according to claim 5, characterized in that: The conductor (10) is a copper core stranded conductor, the insulating layer (8) is a magnesium oxide insulating layer, the armor layer (2) is a stainless steel strip material, and the outer sheath (1) is a chloroprene rubber material.

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