CN213691531U - Resistance to compression cable - Google Patents

Abstract

A crush resistant cable comprising: a jacket; the embedded layer is arranged in the outer sleeve and is of a net structure; the inner layer is arranged in the embedded layer; the buffer layer is provided with an inner-layer inner wall in a circumferential array; the water resistance layer is arranged in the buffer layer, and a circular hole is formed in the center of the water resistance layer; the protective layers are arranged in the circular holes in two pairs and are in symmetrical structures; the lining framework is arranged in the round holes at intervals along the axial direction of the outer sleeve; the heat conducting layers are arranged in the circular holes at intervals along the axial direction of the outer sleeve, and are respectively arranged on the end surfaces of the corresponding lining frameworks in one-to-one correspondence with the lining frameworks; the number of the conducting wires is four, each conducting wire is formed by twisting a plurality of conducting wires, and each conducting wire penetrates through the protective layer. The utility model discloses can effectual improvement cable compressive strength, improve the insulating waterproof characteristic of cable, improve the fire behaviour of cable, improve the heat conductivility of cable, improve the wholeness ability of cable, have stronger practicality.

Description

Resistance to compression cable

Technical Field

The utility model relates to a relevant technical field of cable especially relates to a resistance to compression cable.

Background

The cable is a common and indispensable thing in daily life as multiple functions such as control installation, connecting device, transmission electric power.

The use scene of cable is more, avoid the cable to be pressed and make the wire expose in the air in the use, perhaps appear inside cracked phenomenon after in order to prevent that the cable from being pressed, therefore when the cable uses, erect often in the air or bury underground in the below ground, this kind of operation can effectually avoid the cable to be crushed by the pressure, but the weak characteristics of cable compressive capacity are not fundamentally solved, the cable is at the compressive process, the protective sheath in the outside is as the buffer layer, carry out effectual buffering to pressure, and partial pressure will pass in the protective sheath entering wire in the outside, and the hardness of the harder cable of outer layer of wire itself is big, consequently at extruded in-process, the wire will directly expose in the air, thereby improve the compressive capacity of cable for the problem of treating urgently.

Disclosure of Invention

The utility model provides a resistance to compression cable to solve above-mentioned prior art not enough, can effectual improvement cable compressive strength, improve the insulating waterproof characteristic of cable, improve the fire-retardant characteristic of cable, improve the heat conductivility of cable, improve the wholeness ability of cable, have stronger practicality.

In order to realize the purpose of the utility model, the following technologies are adopted:

a crush resistant cable comprising:

a jacket;

the embedded layer is arranged in the outer sleeve and is of a net structure;

the inner layer is arranged in the embedded layer;

the buffer layer is provided with an inner-layer inner wall in a circumferential array;

the water resistance layer is arranged in the buffer layer, and a circular hole is formed in the center of the water resistance layer;

the protective layers are arranged in the circular holes in two pairs and are in symmetrical structures;

the lining framework is arranged in the round holes at intervals along the axial direction of the outer sleeve;

the heat conducting layers are arranged in the round holes at intervals along the axial direction of the outer sleeve, correspond to the lining frameworks one by one and are arranged on the end faces of the corresponding lining frameworks;

the number of the conducting wires is four, each conducting wire is formed by twisting a plurality of conducting wires, and each conducting wire penetrates through the protective layer.

Further, the outer jacket is made of HFDB 4202NT EC insulating material.

Further, the embedded layer is a steel wire mesh.

Further, the inner layer is made of HFDB 4202NT EC insulating material.

Further, the buffer layer is of an arc-shaped structure and is made of the inner layer extending inwards in an extrusion forming mode.

Further, the water-blocking layer is made of water-blocking powder.

Furthermore, the lining framework is formed by pressing a plurality of layers of oil-impregnated crepe paper, the lining framework is concentrically formed with a communicating hole, the lining framework penetrates through the protective layer, and a halogen-free flame-retardant fireproof material is filled between every two adjacent lining frameworks.

Furthermore, the heat-conducting layer is made by silica gel, and it includes the outer lane of adhesion in inside lining skeleton terminal surface, and the outer lane extends to the centre of a circle and be equipped with four of the interior strip that stretches of circumference array, and the outer wall of the interior strip that stretches all takes shape has a plurality of fins.

The technical scheme has the advantages that:

the utility model discloses can effectual improvement cable compressive strength, improve the insulating waterproof characteristic of cable, improve the fire behaviour of cable, improve the heat conductivility of cable, improve the wholeness ability of cable, have stronger practicality.

Drawings

Fig. 1 shows a perspective view of a first embodiment.

Fig. 2 shows a perspective view of the second embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.

Furthermore, the terms "substantially", and the like are intended to indicate that the relative terms are not necessarily strictly required, but may have some deviation. For example: "substantially equal" does not mean absolute equality, but because absolute equality is difficult to achieve in actual production and operation, certain deviations generally exist. Thus, in addition to absolute equality, "substantially equal" also includes the above-described case where there is some deviation. In this case, unless otherwise specified, terms such as "substantially", and the like are used in a similar manner to those described above.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, a crush resistant cable includes: the outer sleeve 1, the embedded layer 2, the inner layer 3, the buffer layer 4, the lead 7 and the like.

The outer jacket 1 is made of HFDB 4202NT EC insulating material. The embedded layer 2 is a steel wire mesh and is arranged in the coat 1 and is of a net structure. And an inner layer 3, which is arranged in the embedded layer 2 and is made of HFDB 4202NT EC insulating material. The buffer layer 4 is provided with inner walls of the inner layer 3 in a circumferential array, is of an arc structure and is formed by extruding and forming the inner layer 3 extending inwards. And the water-resisting layer 5 is arranged in the buffer layer 4, is provided with a round hole at the center and is made of water-resisting powder. The protective layers 6 are made of HFDB 4202NT EC insulating materials, are arranged in two pairs, are arranged in the round holes and are in symmetrical structures. The inside lining skeleton 8 is the interval distribution along the axial of overcoat 1 and wears in the round hole, and it is formed by the pressfitting of multilayer immersion oil crepe paper, and concentric the taking shape of inside lining skeleton 8 has the intercommunication hole 80, and inside lining skeleton 8 wears in inoxidizing coating 6, and it has halogen-free fire-retardant fire-resistant material to fill between two adjacent inside lining skeletons 8. Heat-conducting layer 9 is interval distribution along the axial of overcoat 1 and wears in the round hole, and all with inside lining skeleton 8 one-to-one, all locates the terminal surface of the inside lining skeleton 8 that corresponds, and heat-conducting layer 9 is made by silica gel, and it includes adhesion in the outer lane 90 of inside lining skeleton 8 terminal surface, and outer lane 90 stretches four strip 91 in extending and being equipped with of circumference array to the centre of a circle, and the strip 91 outer wall that stretches in all forms and has fin 92 a plurality of. The number of the conducting wires 7 is four, each conducting wire is formed by twisting a plurality of conducting wires, and each conducting wire penetrates through the protective layer 6.

The cable aims to improve the compressive strength of the cable, and correspondingly improves the waterproof property, the flame retardant property and the heat dissipation property of the cable.

Wherein the outer sleeve 1 made of HFDB 4202NT EC insulating material can prevent water trees from being generated, thereby improving the water erosion resistance of the cable, effectively improving the insulativity of the cable, effectively prolonging the service life of the outer sleeve 1 by preventing the water trees from being generated, the embedded layer 2 made of steel wires or carbon fibers and arranged between the outer sleeve 1 and the inner layer 3 can effectively improve the tensile strength of the whole cable, effectively improve the external strength of the whole cable when a steel wire mesh is adopted as the embedded layer 2, enhance the strength of the protective sleeve consisting of the inner sleeve 1 and the inner layer 3 by adopting the carbon fibers, improve the strength of the whole external protective structure as a framework between the outer sleeve 1 and the outer layer 3, effectively ensure the associativity between the outer sleeve 1 and the inner layer 3 by adopting a net structure, effectively improve the compressive strength of the cable by the buffer layer 4 in an arc structure, when the cable pressurized, the deformable space of buffer layer 4 is great, reduces the direct action of external pressure to the wire, and waterproof layer 5 can the inside effect of blocking water of effectual improvement cable, improves the water-proof effects of cable, and waterproof layer 5 is made by the mixture of acrylic acid sodium, monomer acrylamide, cross-linking agent, initiator and deionized water. The protective layer 6 is used as a direct protective sleeve of the wire, the service life of the cable can be effectively prolonged through the protective sleeve made of HFDB 4202NT EC insulating materials, the lining frameworks 8 are formed by pressing and combining a plurality of layers of oil-impregnated crepe paper with good insulating property and certain strength, on one hand, the compressive strength of the cable is improved, the protective sleeve plays a role in protecting and supporting the internal wire 7, the cable is effectively prevented from being damaged due to overlarge pressure when being pressed, meanwhile, in order to improve the flame retardant effect of the cable, a corresponding halogen-free flame retardant refractory material is arranged between every two adjacent lining frameworks 8, the main components of the halogen-free flame retardant refractory material are compounds formed by magnesium hydroxide, aluminum hydroxide and zinc borate, the substances can mutually cooperate to reduce the flammability of the cable, and in order to improve the heat dissipation performance of the cable, the heat conduction layer 9 made of silica gel is, this kind of heat-conducting layer 9 can give off the heat that the wire produced to reduce the latent heat of cable, and then improve the life-span of cable.

This cable is in the processing production process, carry out the stranded conductor of each wire group earlier, then wrap up inoxidizing coating 6 in 7 outsides of each wire through extrusion equipment after the stranded conductor is accomplished, then, wear inside lining skeleton 8 and the heat-conducting layer 9 that the pressfitting adhesion formed in proper order on the wire, after the completion, carry out the extrusion of inlayer 3, establish the partial structure of completion with the cover and pass extrusion equipment, wrap up inlayer 3 above that, then establish the embedded layer 2 that has prepared the completion on the cable, the cover is established the completion after, carry out the parcel of overcoat 1 through extrusion equipment, wherein buffer layer 4 is through extrusion equipment and inlayer 3 simultaneous molding.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is obvious that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (9)

1. A crush-resistant cable, comprising:

a jacket (1);

the embedded layer (2) is arranged in the outer sleeve (1) and is of a net structure;

the inner layer (3) is arranged in the embedded layer (2);

the buffer layer (4) is provided with the inner wall of the inner layer (3) in a circumferential array;

the water resisting layer (5) is arranged in the buffer layer (4), and a round hole is formed in the center of the water resisting layer;

the protective layers (6) are arranged in the circular holes in two pairs and are in symmetrical structures;

the lining frameworks (8) are arranged in the round holes at intervals along the axial direction of the outer sleeve (1);

the heat conducting layers (9) are arranged in the circular holes at intervals along the axial direction of the outer sleeve (1), correspond to the lining frameworks (8) one by one and are arranged on the end faces of the corresponding lining frameworks (8);

the number of the conducting wires (7) is four, each conducting wire is formed by twisting a plurality of conducting wires, and each conducting wire penetrates through the protective layer (6).

2. Crush-resistant cable according to claim 1, wherein the outer jacket (1) is made of HFDB 4202NT EC insulating material.

3. Crush-resistant cable according to claim 1, wherein the embedded layer (2) is a steel mesh.

4. Crush-resistant cable according to claim 1, wherein the inner layer (3) is made of HFDB 4202NT EC insulating material.

5. Crush-resistant cable according to claim 1, wherein the buffer layer (4) is of arcuate configuration and is formed by extrusion of the inner layer (3) extending inwardly.

6. Crush-resistant cable according to claim 1, wherein the water-blocking layer (5) is made of water-blocking powder.

7. The pressure-resistant cable according to claim 1, wherein the lining frame (8) is formed by pressing a plurality of layers of oil-impregnated crepe paper, the lining frame (8) is concentrically formed with a communicating hole (80), the lining frame (8) penetrates through the protective layer (6), and a halogen-free flame-retardant fire-resistant material is filled between two adjacent lining frames (8).

8. The pressure-resistant cable according to claim 1, wherein the heat conducting layer (9) is made of silica gel and comprises an outer ring (90) adhered to the end face of the lining framework (8), the outer ring (90) extends towards the center of a circle and is provided with four inner extending strips (91) in a circumferential array, and the outer walls of the inner extending strips (91) are all provided with a plurality of fins (92).

9. Crush-resistant cable according to claim 1, wherein the shield (6) is made of HFDB 4202NT EC insulating material.

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