阅读说明：本技术 一种耐化学腐蚀性和耐高低温的双层共挤绝缘电缆 (Chemical corrosion resistance and high and low temperature resistance double-layer co-extrusion insulated cable ) 是由 武光超 于 2019-09-02 设计创作，主要内容包括：本发明属于电缆领域,尤其是一种耐化学腐蚀性和耐高低温的双层共挤绝缘电缆,现提出如下方案,其包括包裹层,所述包裹层的内部设有多个直线均匀排布的固定环,固定环上开有多个连通孔,相邻连通孔内穿设有加强筋,固定环的内部均通过连接块固定有多个套圈,套圈的内部穿设有导线,包裹层的内部填充有具有缓冲功能的填充层,所述包裹层的外部设有保护层一,保护层一的外部设有保护层二。本发明提出了一种耐化学腐蚀性和耐高低温的双层共挤绝缘电缆,具有优良的弯折性能,在长时间的弯折后,不容易出现损坏的情况,且其具有优良的耐高温和耐低温性能,方便在复杂情况下使用,同时具有一定的抗腐蚀性能。(The invention belongs to the field of cables, and particularly relates to a chemical corrosion resistance and high and low temperature resistance double-layer co-extrusion insulated cable. The double-layer co-extrusion insulated cable with chemical corrosion resistance and high and low temperature resistance provided by the invention has excellent bending performance, is not easy to damage after being bent for a long time, has excellent high temperature resistance and low temperature resistance, is convenient to use under complex conditions, and has certain corrosion resistance.)

1. The double-layer co-extrusion insulated cable with chemical corrosion resistance and high and low temperature resistance comprises a wrapping layer (6), and is characterized in that a plurality of fixing rings (5) which are linearly and uniformly distributed are arranged inside the wrapping layer (6), a plurality of communicating holes are formed in the fixing rings (5), reinforcing ribs (3) penetrate through adjacent communicating holes, a plurality of ferrules (4) are fixed inside the fixing rings (5) through connecting blocks (1), wires (2) penetrate through the ferrules (4), a filling layer (10) with a buffering function is filled inside the wrapping layer (6), a first protective layer (8) is arranged outside the wrapping layer (6), and a second protective layer (9) is arranged outside the first protective layer (8);

a plurality of buffer tubes (7) are filled between the wrapping layer (6) and the first protective layer (8), and the vertical sections of the buffer tubes (7) are oval.

2. The double-layer co-extrusion insulated cable with chemical resistance and high and low temperature resistance as claimed in claim 1, wherein the outer sidewall of the wrapping layer (6) is provided with a plurality of bumps, the outer sidewall of the buffer tube (7) is provided with a plurality of fixing holes arranged along a straight line, and one end of the bump is inserted into the fixing hole.

3. The double-layer co-extruded insulated cable with chemical resistance and high and low temperature resistance according to claim 1, wherein the first protective layer (8) is a rubber layer added with chlorosulfonated polyethylene and ethylene-vinyl acetate copolymer.

4. The double-layer co-extruded insulated cable with chemical resistance and high and low temperature resistance according to claim 1, wherein the filling layer (10) is a slow mixture of EPDM rubber particles and PVC insulating particles.

5. The double-layer co-extruded insulated cable with chemical resistance and high and low temperature resistance according to claim 1, wherein the second protective layer (9) is a fluoroplastic comprising mica-containing silicone tapes and ceramic fibers, and a protective layer woven from glass fiber yarns or cotton yarns and impregnated with an anti-corrosive oil is sleeved on the outside of the second protective layer (9).

6. The chemical resistance and high and low temperature resistance double-layer co-extrusion insulated cable according to claim 1, characterized in that a refractory silicon wafer material is filled between the first protective layer (8) and the wrapping layer (6).

Technical Field

The invention relates to the technical field of cables, in particular to a chemical corrosion resistant and high and low temperature resistant double-layer co-extrusion insulated cable.

Background

China has wide land, so that the climate in various parts of China has great difference, and the huge temperature difference puts higher requirements on our cable material. In areas with hot climate and severe climate environment, the temperature is very high, the cable needs to have very strong high temperature resistance, and in northern areas of China, the temperature often reaches minus 40 ℃ and the climate is very dry, and general equipment is in an unmanned area, under the condition of such low temperature, the cable needs to have better low temperature resistance and certain flame retardant property, general rubber can not normally work at such low temperature, for some cable equipment, the cable needs to be bent in the using process, and the long-time bending easily causes the cable to be damaged, so that a chemical corrosion resistance and high and low temperature resistance double-layer co-extrusion insulated cable is provided.

Disclosure of Invention

The invention provides a chemical corrosion resistance and high and low temperature resistance double-layer co-extrusion insulated cable, which solves the problems in the background technology.

In order to achieve the purpose, the invention adopts the following technical scheme:

a double-layer co-extrusion insulated cable resistant to chemical corrosion and high and low temperatures comprises a wrapping layer, wherein a plurality of fixing rings which are linearly and uniformly distributed are arranged inside the wrapping layer, a plurality of communicating holes are formed in the fixing rings, reinforcing ribs penetrate through adjacent communicating holes, a plurality of ferrules are fixed inside the fixing rings through connecting blocks, wires penetrate through the ferrules, a filling layer with a buffering function is filled inside the wrapping layer, a first protective layer is arranged outside the wrapping layer, and a second protective layer is arranged outside the first protective layer;

and a plurality of buffer tubes are filled between the wrapping layer and the first protective layer, and the vertical sections of the buffer tubes are oval.

Preferably, the outer side wall of the wrapping layer is provided with a plurality of convex blocks, the outer side wall of the buffer tube is provided with a plurality of fixing holes arranged along the linear direction, and one end of each convex block is inserted into each fixing hole.

Preferably, the first protective layer is a rubber layer added with chlorosulfonated polyethylene and ethylene-vinyl acetate copolymer.

Preferably, the filling layer is a slow mixture of EPDM rubber particles and PVC insulating particles.

Preferably, the second protective layer is a fluoroplastic comprising mica-containing silicone tapes and ceramic fibers, and a protective layer woven by glass fiber yarns or cotton yarns and impregnated with anti-corrosion oil is sleeved outside the second protective layer.

Preferably, a refractory silicon wafer material is filled between the first protective layer and the wrapping layer.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention provides a chemical corrosion resistance and high and low temperature resistance double-layer co-extrusion insulated cable, which has excellent bending performance and is not easy to damage after being bent for a long time;

2. the invention provides a chemical corrosion resistance and high and low temperature resistance double-layer co-extrusion insulated cable, which has excellent high temperature resistance and low temperature resistance through the structure, is convenient to use under complex conditions, and has certain corrosion resistance.

Drawings

FIG. 1 is a schematic structural diagram of a chemical corrosion resistance and high and low temperature resistance double-layer co-extruded insulated cable according to the present invention;

FIG. 2 is a schematic view of a partial structure of a chemical resistance and high and low temperature resistance double-layer co-extruded insulated cable according to the present invention;

FIG. 3 is a schematic structural diagram of a buffer tube and a fixing hole of a chemical resistance and high and low temperature resistance double-layer co-extruded insulated cable according to the present invention.

In the figure: 1 connecting block, 2 wires, 3 reinforcing ribs, 4 ferrules, 5 fixing rings, 6 wrapping layers, 7 buffer tubes, 71 fixing holes, 8 first protective layers, 9 second protective layers and 10 filling layers.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a double-layer co-extrusion insulated cable with chemical corrosion resistance and high and low temperature resistance comprises a wrapping layer 6, wherein a plurality of fixing rings 5 which are linearly and uniformly distributed are arranged inside the wrapping layer 6, a plurality of communicating holes are formed in the fixing rings 5, reinforcing ribs 3 penetrate through adjacent communicating holes, a plurality of ferrules 4 are fixed inside the fixing rings 5 through connecting blocks 1, wires 2 penetrate through the ferrules 4, a filling layer 10 with a buffering function is filled inside the wrapping layer 6, a first protective layer 8 is arranged outside the wrapping layer 6, and a second protective layer 9 is arranged outside the first protective layer 8;

a plurality of buffer tubes 7 are filled between the wrapping layer 6 and the first protective layer 8, the vertical cross section of each buffer tube 7 is oval, the buffer tubes 7 have good buffering performance when being extruded, and the buffer tubes 7 are preferably rubber tubes with certain elasticity and can be twisted to a certain degree.

Be equipped with a plurality of lugs on the lateral wall of parcel layer 6, it has a plurality of fixed orificess that set up along the straight line direction to open on the lateral wall of buffer tube 7, and the one end of lug is inserted in the fixed orifices for buffer tube 7 and parcel layer firm in connection.

The first protective layer 8 is a rubber layer added with chlorosulfonated polyethylene and ethylene-vinyl acetate copolymer, so that the cable has good heat resistance and fire resistance.

The filling layer 10 is a slow mixture of EPDM rubber particles and PVC insulating particles, the cable has good buffering performance when being bent, and is easy to recover after being bent, and the cable cannot be damaged, and the EPDM rubber particles have good heat dissipation performance, so that the heat dissipation performance of the cable is improved.

The second protective layer 9 is made of mica-containing organic silicon tape and ceramic fiber fluoroplastic, the cable can work at low temperature conveniently, a protective layer which is woven by glass fiber yarns or cotton yarns and is impregnated with anti-corrosion oil is sleeved outside the second protective layer 9, and the protective layer is arranged, so that the outer surface of the cable has good anti-corrosion performance.

And a refractory silicon wafer material is filled between the first protective layer 8 and the wrapping layer 6, so that the fireproof performance is good.

The invention provides a chemical corrosion resistance and high and low temperature resistance double-layer co-extrusion insulated cable, which has excellent bending performance and is not easy to damage after being bent for a long time;

the invention provides a chemical corrosion resistance and high and low temperature resistance double-layer co-extrusion insulated cable, which has excellent high temperature resistance and low temperature resistance through the structure, is convenient to use under complex conditions, and has certain corrosion resistance.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.