CN213424705U - Multi-core coaxial cable - Google Patents

Abstract

The utility model discloses a multicore coaxial cable, including the card frame, the inner wall center of card frame runs through there is the strengthening rib, be equipped with protective structure between inner sheath layer and the oversheath layer. This multicore coaxial cable, the setting on accessible polyethylene layer, wedding and the carbon fiber layer and the C/C combined material that the epoxy formed, make the cable have extremely strong corrosion resistance, cooperation aluminum-plastic composite strip can make the cable have very strong high temperature resistant insulating ability simultaneously, can effectual isolated electric current, prevent that electric leakage breakdown short circuit phenomenon from taking place, and then increase of service life, promote the safety in utilization, and through the card frame, the setting of glass silk band and steel band, can further promote the compressive capacity of cable, and then avoid inner structure to receive the extrusion and damage, accessible water blocking area and polyurethane layer carry out the separation to water, accessible nylon rope adsorbs the storage to water when unexpected seepage, and then avoid water to continue to cable inside erosion and permeation, promote the waterproof nature of cable greatly.

Description

Multi-core coaxial cable

Technical Field

The utility model relates to a multicore coaxial cable technical field specifically is a multicore coaxial cable.

Background

Coaxial cable refers to a cable having two concentric conductors, the conductors and the shielding layer share the same axis, and most common coaxial cables consist of copper conductors separated by an insulating material, and another layer of annular conductor and its insulator are arranged outside the inner layer of insulating material, and then the whole cable is covered by a sheath made of polyvinyl chloride or teflon material.

When the multi-core coaxial cable in the prior art is used, the corrosion resistance of the cable is poor, the high-temperature-resistant insulating capacity is high, the current cannot be effectively isolated, the phenomenon of short circuit caused by electric leakage breakdown is prevented, the service life of the cable is shortened, the use safety is low, the pressure resistance is poor, the inner structure is easily extruded and damaged, meanwhile, the waterproof performance of the cable is poor, the use strength is further influenced, the use effect of the cable cannot be guaranteed, and the multi-core coaxial cable is inconvenient to use by people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multicore coaxial cable to solve multicore coaxial cable among the prior art among the above-mentioned background art when using, the corrosion resistance of cable is not good, and high temperature resistant insulating ability, and unable effectual isolated current prevents that electric leakage from puncturing the short circuit phenomenon and taking place, and then leads to its life to shorten, and the safety in utilization is not high, and compressive capacity is poor, and inner structure receives the extrusion easily and the problem of damage.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-core coaxial cable comprises a clamping frame, wherein a reinforcing rib penetrates through the center of the inner wall of the clamping frame, copper cores are arranged in inner through holes of the clamping frame, a fire-resistant layer is fixedly connected to the outer wall of each copper core, an insulating layer is fixedly connected to the outer wall of each fire-resistant layer, gypsum is filled between each insulating layer and the inner wall of each through hole of the clamping frame, glass fiber wrapping belts wrap the outer walls of the clamping frame, inner sheath layers are fixedly connected to the outer walls of the glass fiber wrapping belts, outer sheath layers are arranged on the outer sides of the inner sheath layers, and a protective structure is arranged between each inner sheath layer and each outer sheath layer;

the protective structure comprises an aluminum-plastic composite belt, a polyethylene layer, a carbon fiber layer, an epoxy resin layer and a steel belt;

the outer wall rigid coupling of compound area of plastic-aluminum has the polyethylene layer, the outer wall rigid coupling on polyethylene layer has the carbon fiber layer, the outer wall rigid coupling on carbon fiber layer has the epoxy layer, the outer wall parcel on epoxy layer has the steel band, the outer wall of steel band and the inner wall fixed connection on oversheath layer.

Preferably, a plurality of the copper cores are coaxially and annularly arranged.

Preferably, the outer wall of the outer sheath is processed with a rib.

Preferably, the carbon fiber layer and the epoxy resin layer form corrosion resistance.

Preferably, a waterproof structure is arranged between the aluminum-plastic composite belt and the inner sheath;

the waterproof structure comprises a water-blocking tape, a polyurethane layer and a nylon rope;

the inner wall of the water-blocking tape wraps the outer wall of the inner sheath, a polyurethane layer is arranged on the outer side of the water-blocking tape, and a nylon rope is sandwiched between the polyurethane layer and the water-blocking tape.

Preferably, the nylon ropes are radially and equidistantly distributed.

Compared with the prior art, the beneficial effects of the utility model are that: this multicore coaxial cable, through the card frame, the strengthening rib, the copper core, the flame retardant coating, the insulating layer, glass silk band, the inner sheath layer, the oversheath layer, gypsum and protective structure's cooperation, make this cable when using, the setting on accessible polyethylene layer, wedding and the C/C combined material that carbon fiber layer and epoxy formed, make the cable have extremely strong corrosion resistance, cooperation aluminum-plastic composite strip can make the cable have very strong high temperature resistant insulating ability simultaneously, can effectual isolated electric current, prevent that electric leakage breakdown short circuit phenomenon from taking place, and then increase of service life, promote the safety in utilization, and through the card frame, the setting of glass silk band and steel band, can further promote the compressive capacity of cable, and then avoid inner structure to receive the extrusion and damage.

Through the cooperation of card frame, strengthening rib, copper core, flame retardant coating, insulating layer, glass silk band, inner sheath layer, outer sheath layer, gypsum and waterproof construction for this cable is when using, and accessible water blocking area and polyurethane layer carry out the separation to water, and accessible nylon rope adsorbs the storage to water when unexpected seepage, and then avoids water to continue to corrode the infiltration to the cable is inside, promotes the waterproof nature of cable greatly, further promotes service strength, guarantees its result of use, makes things convenient for people to use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the copper core, refractory layer and insulating layer of FIG. 1;

FIG. 3 is a schematic view of the construction of the water-blocking tape, the polyurethane layer and the nylon cord of FIG. 1;

fig. 4 is a schematic structural view of the polyethylene layer, the carbon fiber layer and the epoxy resin layer in fig. 1.

In the figure: 1. the waterproof structure comprises a clamping frame, 2 parts of reinforcing ribs, 3 parts of a copper core, 4 parts of a fireproof layer, 5 parts of an insulating layer, 6 parts of a glass fiber wrapping tape, 7 parts of a protective structure, 701 parts of an aluminum-plastic composite tape, 702 parts of a polyethylene layer, 703 parts of a carbon fiber layer, 704 parts of an epoxy resin layer, 705 parts of a steel tape, 8 parts of a waterproof structure, 801 parts of a water blocking tape, 802 parts of a polyurethane layer, 803 parts of a nylon rope, 9 parts of an inner sheath layer, 10 parts of an outer sheath layer, 11 parts of gypsum.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a multi-core coaxial cable comprises a clamping frame 1, reinforcing ribs 2 penetrate through the center of the inner wall of the clamping frame 1, the reinforcing ribs 2 are made of steel wires, copper cores 3 are arranged in inner through holes of the clamping frame 1, a plurality of copper cores 3 are arranged in a coaxial ring shape, a fire-resistant layer 4 is fixedly connected to the outer wall of each copper core 3, the fire-resistant layer 4 is made of fire-resistant fiber materials, an insulating layer 5 is fixedly connected to the outer wall of each fire-resistant layer 4, the insulating layer 5 is made of polyvinyl chloride and has strong fire resistance, gypsum 11 is filled between the insulating layer 5 and the inner wall of the through hole of the clamping frame 1 and has good fire resistance and can fix the copper cores 3 and the like, a glass fiber wrapping belt 6 wraps the outer wall of the clamping frame 1, an inner sheath layer 9 is fixedly connected to the outer wall of the glass fiber wrapping belt 6, an outer sheath layer 10 is arranged on the outer side of the inner sheath layer 9, the inner sheath layer 9 and the outer sheath layer 10 are made of nitrile rubber, the convex edges can increase the wear resistance of the outer sheath layer 10, and a protective structure 7 is arranged between the inner sheath layer 9 and the outer sheath layer 10.

The protective structure 7 comprises an aluminum-plastic composite belt 701, a polyethylene layer 702, a carbon fiber layer 703, an epoxy resin layer 704 and a steel belt 705, wherein the polyethylene layer 702 is fixedly connected to the outer wall of the aluminum-plastic composite belt 701, the aluminum-plastic composite belt 701 has strong high-temperature-resistant insulating capacity, can effectively isolate current, can prevent the occurrence of electric leakage breakdown short circuit phenomenon, has waterproof property and tensile property, and enhances the strength of the aluminum-plastic composite belt, the polyethylene layer 702 has excellent low-temperature resistance and good chemical stability, and can resist corrosion of most acid and alkali, the carbon fiber layer 703 is fixedly connected to the outer wall of the polyethylene layer 702, the epoxy resin layer 704 is fixedly connected to the outer wall of the carbon fiber layer 703, the carbon fiber layer 703 and the epoxy resin layer 704 form an anti-corrosion layer, the carbon fiber has high axial strength and modulus, low density, high specific performance, no creep, is resistant to ultrahigh temperature under a non-oxidation environment, good fatigue resistance, the thermal expansion coefficient is small, the thermal expansion coefficient is anisotropic, the corrosion resistance is good, the good electric conduction and heat conduction performance and the electromagnetic shielding performance are good, the epoxy resin layer 703 is used for being matched with the carbon fiber layer 802 to form a C/C composite material, the C/C composite material has extremely strong corrosion resistance, the outer wall of the epoxy resin layer 704 is wrapped by the steel belt 705, the pressure resistance of the steel belt 705 can be improved, and the outer wall of the steel belt 705 is fixedly connected with the inner wall of the outer sheath layer 10.

Be equipped with waterproof construction 8 between plastic-aluminum composite band 701 and the inner sheath layer 9, waterproof construction 8 includes water-blocking tape 801, polyurethane layer 802 and nylon rope 803, the inner wall parcel of water-blocking tape 801 is in the outer wall of inner sheath 9, the outside of water-blocking tape 801 is equipped with polyurethane layer 802, water-blocking tape 801 is by polyester non-woven fabrics, adhesives, materials such as high-speed inflation polymer water-absorbing resin processing form, have better water-blocking, polyurethane layer 802 has better waterproof nature, the clamping has nylon rope 803 between polyurethane layer 802 and the water-blocking tape 801, nylon rope 803 is radial equidistance distribution, the design can play the filling effect like this, accessible nylon rope 803 adsorbs the water of infiltration simultaneously, further avoid water infiltration.

In this embodiment, when using the multi-core coaxial cable, firstly, the reinforcing rib 2 penetrates through the inside of the card frame 1, the copper core 3 wrapped with the fire-resistant layer 4 and the insulating layer 5 is inserted into the through hole of the card frame 1, and is filled with gypsum 11 to be fixed, and the glass fiber wrapping tape 6 is wound on the outer wall of the card frame 1, through the setting of the steel tape 705, the cable can be subjected to compression resistance, and the epoxy resin layer 703 is used for matching with the carbon fiber layer 802 to form a C/C composite material, which has extremely strong corrosion resistance, and further has corrosion resistance, through the setting of the aluminum-plastic composite tape 701, the multi-core coaxial cable can have very strong high temperature resistance and insulation capacity, can effectively isolate current, prevent the occurrence of electric leakage short circuit, and has waterproof performance and stretch resistance, the strength of the aluminum-plastic composite tape is enhanced, meanwhile, through the setting of the water-resistant tape 801 and the polyurethane layer 802, can play waterproof, the effect that blocks water to the cable, and can adsorb the water of unexpected infiltration through nylon rope 803, and then avoid water to its inside infiltration erosion, prolong the life of cable.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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

Claims (6)

1. A multicore coaxial cable, includes card frame (1), its characterized in that: a reinforcing rib (2) penetrates through the center of the inner wall of the clamping frame (1), a copper core (3) is arranged in an inner through hole of the clamping frame (1), a fire-resistant layer (4) is fixedly connected to the outer wall of the copper core (3), an insulating layer (5) is fixedly connected to the outer wall of the fire-resistant layer (4), gypsum (11) is filled between the insulating layer (5) and the inner wall of the through hole of the clamping frame (1), a glass fiber wrapping tape (6) is wrapped on the outer wall of the clamping frame (1), an inner sheath layer (9) is fixedly connected to the outer wall of the glass fiber wrapping tape (6), an outer sheath layer (10) is arranged on the outer side of the inner sheath layer (9), and a protective structure (7) is arranged between the inner sheath layer (9) and the outer sheath layer (10);

the protective structure (7) comprises an aluminum-plastic composite belt (701), a polyethylene layer (702), a carbon fiber layer (703), an epoxy resin layer (704) and a steel belt (705);

the outer wall rigid coupling of compound area of aluminium-plastic (701) has polyethylene layer (702), the outer wall rigid coupling of polyethylene layer (702) has carbon fiber layer (703), the outer wall rigid coupling of carbon fiber layer (703) has epoxy layer (704), the outer wall parcel of epoxy layer (704) has steel band (705), the outer wall of steel band (705) and the inner wall fixed connection of oversheath layer (10).

2. The multiple core coaxial cable of claim 1, wherein: the plurality of copper cores (3) are coaxially and annularly arranged.

3. The multiple core coaxial cable of claim 1, wherein: the outer wall of the outer sheath layer (10) is provided with a convex edge.

4. The multiple core coaxial cable of claim 1, wherein: the carbon fiber layer (703) and the epoxy resin layer (704) form an anti-corrosion layer.

5. The multiple core coaxial cable of claim 1, wherein: a waterproof structure (8) is arranged between the aluminum-plastic composite belt (701) and the inner sheath layer (9);

the waterproof structure (8) comprises a water-blocking tape (801), a polyurethane layer (802) and a nylon rope (803);

the inner wall of the water-blocking tape (801) is wrapped on the outer wall of the inner sheath layer (9), the outer side of the water-blocking tape (801) is provided with a polyurethane layer (802), and a nylon rope (803) is sandwiched between the polyurethane layer (802) and the water-blocking tape (801).

6. The multiple core coaxial cable of claim 5, wherein: the nylon ropes (803) are radially and equidistantly distributed.

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