CN213691496U - Bending-resistant cable - Google Patents

Abstract

The utility model discloses a resistant cable of buckling, including central support, cable core and oversheath, the draw-in groove of several and cable core one-to-one is seted up in the outside of central support, the oversheath cladding is in the outside of central support and cable core, wherein the oversheath, it has the fire prevention filler to fill between central support and the cable core, and the embedded several resistant inner core of buckling that is equipped with of fire prevention filler, the oversheath includes the polyurethane foaming layer that from interior to exterior fixes in proper order, fire-retardant around the covering, the elastic layer, buffer layer and inoxidizing coating, and it is fixed through the fire prevention gluing agent between the adjacent two-layer, the embedded spring that is equipped with the several along circumference equidistance and arranges in polyurethane foaming layer, the buffer layer includes. The utility model discloses a multilayer composite construction, reasonable in design, simple structure has fire prevention, resistance to compression, resistant bending property, improves the life of cable greatly, has spreading value.

Description

Bending-resistant cable

Technical Field

The utility model belongs to the technical field of the cable, concretely relates to resistant cable of buckling.

Background

The flexible cable is the first choice cable of power transmission material, signal transmission carrier in the drag chain motion system, the another name: drag chain cable, drag cable, removal cable, robot cable etc. flexible cable need buckle often in the use and drag, and cable core and oversheath can constantly bear certain range distortion. However, the existing cable has poor protection, so that the cable is very easy to break or break core wires in the bending process, and the using effect is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a resistant cable of buckling to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a resistant cable of buckling, includes central support, cable core and oversheath, and its structural feature lies in: the draw-in groove of several and cable core one-to-one is seted up in the outside of central support, the oversheath cladding is in the outside of central support and cable core, wherein the oversheath, it has the fire prevention filler to fill between central support and the cable core, and the embedded several inner core of buckling resistant that is equipped with of fire prevention filler, the oversheath includes from interior to exterior fixed polyurethane foaming layer in proper order, fire-retardant around the covering, the elastic layer, buffer layer and inoxidizing coating, and it is fixed through the fire prevention gluing agent between the adjacent two-layer, the embedded spring that is equipped with the several along circumference equidistance and arranges in polyurethane foaming layer, the buffer layer includes the several and.

Preferably, the central support is made of a fluoro-rubber material.

Preferably, a through hole is formed in the center of the central support, and the through hole is filled with a polyurethane foam material.

Preferably, the cable core comprises a conductive core, an insulating layer fixed outside the conductive core in a wrapping manner, an oxygen-isolating layer fixed outside the insulating layer in a wrapping manner, and a flame-retardant layer fixed outside the oxygen-isolating layer in a wrapping manner, wherein the conductive core is formed by mutually twisting a plurality of wires, and cooling and heat dissipation filler sand is filled between the conductive core and the insulating layer.

Preferably, the bending-resistant inner core is made of a metal material or a polytetrafluoroethylene material.

Preferably, the outer side of the bending-resistant inner core is provided with a plurality of buffer grooves which are arranged at equal intervals along the axial direction.

Preferably, the plurality of buffer grooves are located on the same side of the bending-resistant inner core.

Preferably, the plurality of buffer grooves are alternately arranged on two sides of the bending-resistant inner core at intervals along the axial direction.

Preferably, the buffer groove is annular and is coaxial with the bending-resistant inner core.

Preferably, the buffer strip is made of a silica gel material or a rubber material, and the cross section of the buffer strip is triangular or elliptical or small semicircular.

Compared with the prior art, the utility model discloses a multilayer composite construction, reasonable in design, simple structure has fire prevention, resistance to compression, resistant bending property, improves the life of cable greatly, has spreading value.

Drawings

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

fig. 2 is a schematic structural view of the bending-resistant inner core of the present invention;

in the figure: 1-central support, 2-cable core, 3-outer sheath, 4-clamping groove, 5-fireproof filler, 6-bending-resistant inner core, 7-polyurethane foam layer, 8-flame-retardant wrapping layer, 9-elastic layer, 10-buffer layer, 11-protective layer, 12-spring, 13-buffer strip, 14-polyurethane foam material, 15-insulating layer, 16-oxygen isolation layer, 17-flame-retardant layer, 18-wire, 19-cooling heat dissipation filling sand and 20-buffer groove.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. 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 work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", 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 simplification of 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.

Referring to fig. 1-2, the present invention provides a technical solution, a bending-resistant cable, including a central support 1, a cable core 2 and an outer sheath 3, a plurality of clamping grooves 4 which are in one-to-one correspondence with the cable cores 2 are arranged on the outer side of the central support 1, the outer sheath 3 is coated on the outer sides of the central support 1 and the cable cores 2, wherein fireproof fillers 5 are filled among the outer sheath 3, the central support 1 and the cable core 2, a plurality of bending-resistant inner cores 6 are embedded in the fireproof fillers 5, the outer sheath 3 comprises a polyurethane foaming layer 7, a flame-retardant wrapping layer 8, an elastic layer 9, a buffer layer 10 and a protective layer 11 which are fixed in sequence from inside to outside, and it is fixed through fire prevention gluing agent between the adjacent two-layer, polyurethane foam layer 7 embedded be equipped with the spring 12 that the several arranged along circumference equidistance, buffer layer 10 include the several buffer strip 13 of arranging along circumference equidistance.

Wherein, in the embodiment, the central bracket 1 is made of a fluororubber material.

In this embodiment, a through hole is formed in the center of the central support 1, and the through hole is filled with a polyurethane foam material 14.

In this embodiment, the cable core 2 includes a conductive core, an insulating layer 15 wrapped and fixed outside the conductive core, an oxygen-barrier layer 16 wrapped and fixed outside the insulating layer 15, and a flame-retardant layer 17 wrapped and fixed outside the oxygen-barrier layer 16, wherein the conductive core is formed by twisting a plurality of wires 18, and a cooling and heat-dissipating filler 19 is filled between the conductive core and the insulating layer 15.

In the present embodiment, the bending-resistant inner core 6 is made of a metal material or a polytetrafluoroethylene material.

In this embodiment, a plurality of buffer grooves 20 are formed in the outer side of the bending-resistant inner core 6 and are arranged at equal intervals along the axial direction.

In this embodiment, the plurality of buffer grooves 20 are located on the same side of the bending-resistant inner core 6.

In the present embodiment, a plurality of the buffer grooves 20 are alternately arranged on two sides of the bending-resistant inner core 6 at intervals along the axial direction.

In this embodiment, the buffer groove 20 is annular, and the buffer groove 20 and the bending-resistant inner core 6 are coaxially disposed.

In this embodiment, the buffering strip 13 is made of a silicone material or a rubber material, and the cross section of the buffering strip 13 is triangular, elliptical, or small semicircular.

The central support 1 is arranged to effectively support the cable core 2, and the polyurethane foam material 14 is filled in the central support 1, so that the strength, toughness and bending resistance of the central support 1 can be improved.

Set up the several and have resistant inner core 6 of buckling of buffering recess 20, when the cable receives external force bending, buffering recess 20 provides the buffering space for resistant inner core 6 of buckling, and resistant inner core 6 of buckling can make the cable resume to the original state fast, avoids cable core 2 impaired, improves the resistant bendability of cable.

Set up polyurethane foam layer 7, have shockproof, resistance to compression, prevent fracture, waterproof, dampproofing, anticorrosive and sound insulation performance, because embedded spring 12 that is equipped with of polyurethane foam layer 7, when the cable receives external force bending, the spring action of spring 12 can make the cable resume to the original state fast, avoids cable core 2 impaired, improves the resistant bendability of cable.

Set up elasticity layer 9, elasticity layer 9 is the elastic fiber weaving layer, and when the cable received external force bending, the spring action of elasticity layer 9 can make the cable reply to the original state fast, avoids cable core 2 impaired, improves the resistant bendability of cable.

The buffer layer 10 that the setting is constituteed by buffer strip 13, when the cable receives external force bending, buffer strip 13 can avoid 11 direct extrusion cable cores 2 of inoxidizing coating, not only can reduce the pressure that cable core 2 received, can also make the cable reply to the original state fast under buffer strip 13's elasticity effect, avoids cable core 2 impaired, improves the resistant bendability of cable.

The utility model discloses a multilayer composite construction, reasonable in design, simple structure has fire prevention, resistance to compression, resistant bending property, improves the life of cable greatly, has spreading value.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. The utility model provides a resistant cable of buckling, includes central support, cable core and oversheath, its characterized in that: the outside of central support seted up the draw-in groove of several and cable core one-to-one, the oversheath cladding in the outside of central support and cable core, wherein it has the fire prevention filler to fill between oversheath, central support and the cable core, and the embedded several of being equipped with of fire prevention filler is able to bear or endure to buckle the inner core, the oversheath include polyurethane foaming layer, fire-retardant winding covering, elasticity layer, buffer layer and the inoxidizing coating that fix in proper order from interior to exterior, and it is fixed through the fire prevention gluing agent between the adjacent two-layer, polyurethane foaming layer embedded be equipped with the spring that the several was arranged along circumference equidistance, the buffer layer include the several buffer strip of arranging along circumference equidistance.

2. A bend-resistant cable as recited in claim 1, wherein: the central bracket is made of a fluororubber material.

3. A bend-resistant cable as recited in claim 1, wherein: the center of the central support is provided with a through hole, and the through hole is filled with a polyurethane foaming material.

4. A bend-resistant cable as recited in claim 1, wherein: the cable core comprises a conductive core, an insulating layer fixed on the outer side of the conductive core in a wrapping mode, an oxygen isolation layer fixed on the outer side of the insulating layer in a wrapping mode, and a flame-retardant layer fixed on the outer side of the oxygen isolation layer in a wrapping mode, wherein the conductive core is formed by mutually twisting a plurality of conducting wires, and cooling heat dissipation filling sand is filled between the conductive core and the insulating layer.

5. A bend-resistant cable as recited in claim 1, wherein: the bending-resistant inner core is made of a metal material or a polytetrafluoroethylene material.

6. A bend-resistant cable as recited in claim 1, wherein: the outer side of the bending-resistant inner core is provided with a plurality of buffer grooves which are distributed at equal intervals along the axial direction.

7. A bend-resistant cable according to claim 6, wherein: the plurality of buffer grooves are positioned on the same side of the bending-resistant inner core.

8. A bend-resistant cable according to claim 6, wherein: the buffer grooves are alternately arranged on two sides of the bending-resistant inner core at intervals along the axial direction.

9. A bend-resistant cable according to claim 6, wherein: the buffer groove is annular and is coaxial with the bending-resistant inner core.

10. A bend-resistant cable as recited in claim 1, wherein: the buffer strip is made of silica gel materials or rubber materials, and the cross section of the buffer strip is triangular, elliptical or small semicircular.

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