CN209249145U - A kind of flame-retardant intrinsic safety computer cable with long service life - Google Patents

Abstract

The utility model relates to intrinsic safety field of cable technology, and disclose a kind of flame-retardant intrinsic safety computer cable with long service life, including outer jointing jacket, the inner wall of the outer jointing jacket is fixedly installed with double-tape armor, the inside of the double-tape armor is filled with fire resisting separation layer, the inside of the fire resisting separation layer is filled with oxygen barrier layer, the inside of the oxygen barrier layer is fixedly installed with internal protective cover, the inner wall of the internal protective cover is fixedly installed with band, the inside of the band is fixedly installed with conductor, the lateral wall of the conductor is socketed with metallic sheath, insulating layer is filled between the conductor and metallic sheath.The flame-retardant intrinsic safety computer cable with long service life; by the way that outer jointing jacket is arranged; after if the outer jointing jacket of cable is damaged; outside air is entered inside cable by notch; under the action of internal protective cover and band; the inside of cable is avoided to be corroded, and oxygen barrier layer prevents air oxidation cable internal magnetic element, extends the service life of cable.

Description

A kind of flame-retardant intrinsic safety computer cable with long service life

Technical field

The utility model relates to intrinsic safety field of cable technology, specially a kind of flame-retardant intrinsic safety with long service life is calculated Electric cable.

Background technique

Power supply unit of the intrinsic safety cable as communication, monitoring, detection, alarm and control system, essential safety source master It applies in petroleum, chemical industry, weaving and coal mine etc. containing in sexual mixture ambient, essential safety source circuit has to comply with essence The requirement of safety circuit standard, intrinsicallysafecircuit refer to the condition as defined in standard (including work normally and standard as defined in Fault condition) under any electric spark for generating or any fuel factor cannot light as defined in property gaseous environment circuit, it is special Point is: inside power circuit and lead-out wire be whether all in the case where working normally or nonserviceabling it is safe, it is generated Electric spark will not light the property mixture in ambient enviroment.

The protective for guaranteeing computer and computer peripherals for traditional building, is typically placed in special put Room is set, since equipment is in indoor for a long time, so that the connecting cable between computer and equipment can also be sealed in half for a long time Dark environment is closed, such cable is easy to be corroded, and keep internal element exposed, oxidation by air, the service life contracting of cable Short, we have proposed a kind of flame-retardant intrinsic safety computer cables with long service life to solve the above-mentioned problems.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of flame-retardant intrinsic safety computer with long service life Cable has the advantages that long service life, solves since equipment is in indoor for a long time, thus between computer and equipment Connecting cable can also be in the environment of semiclosed darkness for a long time, and such cable is easy to be corroded, and keep internal element exposed, quilt The problem of air oxidation, the reduced service life of cable.

(2) technical solution

To realize above-mentioned long service life purpose, the utility model is provided the following technical solutions: a kind of with long service life Flame-retardant intrinsic safety computer cable, including outer jointing jacket, the inner wall of the outer jointing jacket are fixedly installed with double-tape armor, institute The inside of double-tape armor is stated filled with fire resisting separation layer, the inside of the fire resisting separation layer is filled with oxygen barrier layer, described oxygen barrier The inside of layer is fixedly installed with internal protective cover, and the inner wall of the internal protective cover is fixedly installed with band, and the inside of the band is solid Dingan County is equipped with conductor, and the lateral wall of the conductor is socketed with metallic sheath, and insulating layer, institute are filled between the conductor and metallic sheath The lateral wall for stating metallic sheath is socketed with Isolated Shield set, and filled layer is filled between the conductor and band.

Preferably, the outer jointing jacket and internal protective cover are silicone rubber tube, and the lateral wall of outer jointing jacket is coated with PVC Wind film.

Preferably, the double-tape armor is process steel wire, and double-tape armor is coated on the outside of fire resisting separation layer.

Preferably, the band is glass polyester belt, and band is wrapped around in the outside of filled layer.

Preferably, the conductor is no less than four, and conductor is twisted copper wire.

Preferably, the insulating layer is to squeeze plastics, and the Isolated Shield set includes copper strips and EP rubbers pipe, the copper Band is fixedly mounted on the inner wall of EP rubbers pipe.

Preferably, the lateral wall of the Isolated Shield set is coated with frosted protective film.

(3) beneficial effect

Compared with prior art, it is electromechanical to provide a kind of flame-retardant intrinsic safety calculating with long service life for the utility model Cable, have it is following the utility model has the advantages that

The flame-retardant intrinsic safety computer cable with long service life, by the way that outer jointing jacket is arranged, the computer in building Connecting cable with computer peripherals be all it is groups of be mounted in wall or in wall top, the external cladding of outer jointing jacket There is PVC to wind film, there is double-tape armor in inside, improves the stretch-resistance and resistance to pressure of cable in this way, and in the bending of cable When, by inner protection film and frosted protective film, abrasion of the filler in filled layer to inner protection film is prevented, so as to avoid electricity When cable installation, there is breakage, when carrying out the transmission of signal, passes through the effect of insulating layer and Isolated Shield set between conductor Under, it can be interfered with each other to avoid occurring signal between conductor, signal biography can also be influenced to avoid the signal interference between cable It is defeated, so that the service life of cable is extended, if outside air enters cable by notch after the outer jointing jacket of cable is damaged Inside avoids the inside of cable from being corroded under the action of internal protective cover and band, and oxygen barrier layer prevents air oxidation cable Internal magnetic element extends the service life of cable.

Detailed description of the invention

Fig. 1 is the utility model structure elevational cross-sectional view；

Fig. 2 is the utility model structure side view cutaway drawing.

In figure: 1 outer jointing jacket, 2 double-tape armors, 3 fire resisting separation layers, 4 oxygen barrier layers, 5 internal protective covers, 6 bands, 7 conductors, 8 metallic sheaths, 9 insulating layers, 10 Isolated Shield sets, 11 filled layers.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

A kind of flame-retardant intrinsic safety computer cable with long service life referring to FIG. 1-2, including outer jointing jacket 1, outer guarantor The inner wall of sheath 1 is fixedly installed with double-tape armor 2, and the inside of double-tape armor 2 is filled with fire resisting separation layer 3, double steel band armours 2 are filled as process steel wire, and double-tape armor 2 is coated on the outside of fire resisting separation layer 3, the inside of fire resisting separation layer 3 be filled with every Oxygen layer 4, the inside of oxygen barrier layer 4 are fixedly installed with internal protective cover 5, and outer jointing jacket 1 and internal protective cover 5 are silicone rubber tube, and outer The lateral wall of protective case 1 is coated with PVC winding film, and the inner wall of internal protective cover 5 is fixedly installed with band 6, and the inside of band 6 is fixed Conductor 7 is installed, conductor 7 is no less than four, and conductor 7 is twisted copper wire, and the lateral wall of conductor 7 is socketed with metallic sheath 8, conductor Insulating layer 9 is filled between 7 and metallic sheath 8, the lateral wall of metallic sheath 8 is socketed with Isolated Shield set 10, and insulating layer 9 is to squeeze modeling Material, Isolated Shield set 10 include copper strips and EP rubbers pipe, and copper strips is fixedly mounted on the inner wall of EP rubbers pipe, conductor 7 and packet Filled layer 11 is filled between band 6, band 6 is glass polyester belt, and band 6 is wrapped around in the outside of filled layer 11, isolation The lateral wall of housing 10 is coated with frosted protective film, by the way that outer jointing jacket 1 is arranged, computer and external connection of computer in building The connecting cable of equipment be all it is groups of be mounted in wall or wall top on, the outside of outer jointing jacket 1 is coated with PVC winding There are double-tape armor 2 in film, inside, improve the stretch-resistance and resistance to pressure of cable in this way, and cable it is curved when, by interior Protective film 5 and frosted protective film prevent abrasion of the filler to inner protection film 5 in filled layer 11, so as to avoid cable peace When dress, there is breakage, when carrying out the transmission of signal, passes through the effect of insulating layer 9 and Isolated Shield set 10 between conductor 7 Under, it can be interfered with each other to avoid there is signal between conductor 7, signal biography can also be influenced to avoid the signal interference between cable It is defeated, so that the service life of cable is extended, if outside air enters electricity by notch after 1 breakage of outer jointing jacket of cable Inside cable, under the action of internal protective cover 5 and band 6, the inside of cable is avoided to be corroded, and oxygen barrier layer 4 prevents air oxygen Change cable internal magnetic element, extends the service life of cable.

In conclusion the flame-retardant intrinsic safety computer cable with long service life is being built by the way that outer jointing jacket 1 is arranged Build interior computer and computer peripherals connecting cable be all it is groups of be mounted in wall or in wall top, outer jointing jacket 1 outside is coated with PVC winding film, and there is double-tape armor 2 in inside, improves the stretch-resistance and resistance to pressure of cable in this way, and Cable it is curved when, by inner protection film 5 and frosted protective film, prevent the filler in filled layer 11 to inner protection film 5 There is breakage when so as to avoid cable installation in abrasion, when carrying out the transmission of signal, passes through insulating layer between conductor 7 9 and Isolated Shield set 10 under the action of, can be interfered with each other to avoid there is signal between conductor 7, can also be to avoid between cable Signal interference, influence signal transmission, to extend the service life of cable, if after 1 breakage of outer jointing jacket of cable, outside Portion's air is entered inside cable by notch, under the action of internal protective cover 5 and band 6, the inside of cable is avoided to be corroded, And oxygen barrier layer 4 prevents air oxidation cable internal magnetic element, extends the service life of cable, when solving long due to equipment Between in interior, so that connecting cable between computer and equipment can also be in the environment of semiclosed darkness for a long time, in this way The problem of cable is easy to be corroded, and keeps internal element exposed, oxidation by air, the reduced service life of cable.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (7)

1. a kind of flame-retardant intrinsic safety computer cable with long service life, including outer jointing jacket (1), it is characterised in that: described The inner wall of outer jointing jacket (1) is fixedly installed with double-tape armor (2), and the inside of the double-tape armor (2) is filled with resistance to fire screen The inside of absciss layer (3), the fire resisting separation layer (3) is filled with oxygen barrier layer (4), and the inside of the oxygen barrier layer (4) is fixedly installed with The inner wall of internal protective cover (5), the internal protective cover (5) is fixedly installed with band (6), and the inside of the band (6) is fixedly mounted Have conductor (7), the lateral wall of the conductor (7) is socketed with metallic sheath (8), is filled between the conductor (7) and metallic sheath (8) The lateral wall of insulating layer (9), the metallic sheath (8) is socketed with Isolated Shield set (10), between the conductor (7) and band (6) Filled with filled layer (11).

2. a kind of flame-retardant intrinsic safety computer cable with long service life according to claim 1, it is characterised in that: institute It states outer jointing jacket (1) and internal protective cover (5) is silicone rubber tube, and the lateral wall of outer jointing jacket (1) is coated with PVC winding film.

3. a kind of flame-retardant intrinsic safety computer cable with long service life according to claim 1, it is characterised in that: institute Stating double-tape armor (2) is process steel wire, and double-tape armor (2) is coated on the outside of fire resisting separation layer (3).

4. a kind of flame-retardant intrinsic safety computer cable with long service life according to claim 1, it is characterised in that: institute Stating band (6) is glass polyester belt, and band (6) is wrapped around in the outside of filled layer (11).

5. a kind of flame-retardant intrinsic safety computer cable with long service life according to claim 1, it is characterised in that: institute It states conductor (7) and is no less than four, and conductor (7) is twisted copper wire.

6. a kind of flame-retardant intrinsic safety computer cable with long service life according to claim 1, it is characterised in that: institute Insulating layer (9) are stated to squeeze plastics, the Isolated Shield set (10) includes copper strips and EP rubbers pipe, and the copper strips is fixedly mounted In the inner wall of EP rubbers pipe.

7. a kind of flame-retardant intrinsic safety computer cable with long service life according to claim 1, it is characterised in that: institute The lateral wall for stating Isolated Shield set (10) is coated with frosted protective film.