CN212380165U

CN212380165U - Wear-resistant outdoor cable

Info

Publication number: CN212380165U
Application number: CN202021368910.2U
Authority: CN
Inventors: 卢飞
Original assignee: Anhui Off Special Cable Technology Co ltd
Current assignee: Anhui Off Special Cable Technology Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-01-19
Anticipated expiration: 2030-07-14

Abstract

The utility model relates to a wire and cable technical field, concretely relates to stand wear and tear outdoor cable. The utility model provides a stand wear and tear outdoor cable, includes the cable core, by interior fire-retardant layer, waterproof layer, armor, second insulating layer and outer protective sheath that has set gradually outside to on the cable core, be provided with the filling layer in the fire-retardant layer, the cable core includes main cable core and supplementary cable core, supplementary cable core has at least one, and supplementary cable core nestification is in the filling layer, supplementary cable core uses main cable core to be the annular distribution as the center, the filling layer includes elastic layer and toughening layer, the fixed cover of elastic layer is established outside main cable core, toughening layer cover is established outside the elastic layer, main cable core and supplementary cable core all overlap outward and are equipped with shielding layer and first insulating layer, the fixed shock attenuation unit that is provided with between waterproof layer and the armor.

Description

Wear-resistant outdoor cable

Technical Field

The utility model relates to a wire and cable technical field, concretely relates to stand wear and tear outdoor cable.

Background

The cable can be a power cable, a compensation cable, a shielding cable, a wear-resistant cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like. They are composed of single-strand or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like, and are respectively applied to different occasions.

At present, a general structure of a general outdoor transmission cable wraps a conductor, insulation, a wrapping tape and a sheath, the conductor is wrapped in an insulation layer, an insulation wire core is cabled around the wrapping tape, and a cabled wire core is wrapped in the sheath layer. This is also the development direction of this patent. Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating.

However, outdoor cables are susceptible to severe weather conditions such as strong wind and heavy rain, so that the structure of the sheath material wrapped on the cable is susceptible to abrasion and damage, and the insulation material is gradually exposed to the outside. Once the phenomenon occurs, the cable needs to be replaced, the operation time is influenced, the production cost is improved, and the tensile property and the wear resistance are not outstanding. Improving the abrasion resistance of the cable also means extending the life of the outdoor cabling, but currently common outdoor cables are not ideal in terms of protection against wind erosion.

For example, an intrinsically safe electrical cable according to CN201020258743.6, comprising a multi-strand cable surrounded by a sheath, and a single-strand cable comprising three wires, each wire comprising a conductor and an insulating layer, wherein: the outer layer of the single-stranded cable is wrapped with a sub-shielding layer, and a pair-twisted wrapping is filled between the sub-shielding layer and the electric wire; the shielding layer is wrapped between the multi-strand cable and the sheath layer, and the gap between the shielding layer and the multi-strand cable is filled with the stranded cable wrapping. When the cable structure is used outdoors, the using effect is easily influenced by weather, and the service life is relatively short due to the low abrasion resistance.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a strong outdoor cable that stand wear and tear that excellent in use effect is strong.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a stand wear and tear outdoor cable, includes the cable core, by interior fire-retardant layer, waterproof layer, armor, second insulating layer and outer protective sheath that has set gradually outside to on the cable core, be provided with the filling layer in the fire-retardant layer, the cable core includes main cable core and auxiliary cable core, and the auxiliary cable core has at least one, and the auxiliary cable core nestification is in the filling layer, and the auxiliary cable core uses main cable core to be the annular distribution as the center, and the filling layer includes elastic layer and toughening layer, and the fixed cover of elastic layer is established outside main cable core, toughening layer cover is established outside the elastic layer, and main cable core and auxiliary cable core all overlap and be equipped with shielding layer and first insulating layer outward, the fixed shock attenuation unit that is provided with between.

The further optimization of this technical scheme, damping unit includes locating piece, spring and shock attenuation post, and the shock attenuation post is annular equidistance around the waterproof layer and distributes, and shock attenuation post one end and waterproof layer fixed connection, the shock attenuation post other end and locating piece fixed connection, the fixed setting of locating piece is on the armor, and the spring housing is established on the shock attenuation post, and spring one end and locating piece fixed connection, the other end and waterproof layer fixed connection.

Further optimization of this technical scheme still includes the flame retardant coating, and the flame retardant coating is fixed to be set up between second insulating layer and outer protective sheath.

According to the further optimization of the technical scheme, the flame-retardant layer and the elastic layer are fixedly connected with the toughening layer, the number of the auxiliary cable cores is 5, the auxiliary cable cores are distributed in an annular and equidistant mode by taking the main cable core as the center, and the auxiliary cable cores are nested at the connection positions of the elastic layer and the toughening layer.

Further optimization of this technical scheme, the surperficial integrated into one piece of outer protective sheath is provided with wear resistant strip, and wear resistant strip is annular equidistance distribution as the centre of a circle with the center of outer protective sheath.

Further optimization of the technical scheme is realized, and the inside of the armor layer is of a net structure woven by steel wires.

The technical scheme is further optimized, and the toughening layer is woven by polyvinyl alcohol fibers.

Compared with the prior art the utility model discloses following beneficial effect has: the utility model discloses a set up the shock attenuation unit, can receive external environment's impact when the cable, play certain cushioning effect to the cable core of inside, prevent that cable core and outside protective layer from producing wearing and tearing because vibrations. Through the elastic layer arranged between the auxiliary cable core and the main cable core, the electric wire cable is effectively prevented from being contacted with the main cable core when being extruded, and abrasion between the auxiliary cable core and the main cable core is avoided. The utility model discloses strengthen the suitability and the practicality of cable, made it better in outdoor result of use.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the present invention.

In the figure: a main cable core 1; an auxiliary cable core 2; a shielding layer 3; a first insulating layer 4; a second insulating layer 5; a waterproof layer 6; an armor layer 7; a positioning block 8; a shock-absorbing post 9; a spring 10; a fire-resistant layer 11; an outer protective sheath 12; a toughening layer 13; an elastic layer 14; a flame retardant layer 15; wear strips 16.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

The utility model discloses a stand wear and tear outdoor cable, refer to figure 1 and show, do the utility model discloses a cross-sectional view, including main cable core 1, supplementary cable core 2, shielding layer 3, first insulation layer 4, second insulating layer 5, waterproof layer 6, armor 7, locating piece 8, shock attenuation post 9, spring 10, flame retardant coating 11, outer protective sheath 12, toughening layer 13, elastic layer 14. Including the cable core, by interior fire-retardant layer 15 that has set gradually outside to on the cable core, waterproof layer 6, armor 7, second insulating layer 5 and outer protective sheath 12, be provided with the filling layer in the fire-retardant layer 15, the cable core includes main cable core 1 and auxiliary cable core 2, main cable core 1 and auxiliary cable core 2 all overlap outward and are equipped with shielding layer 3 and first

insulating layer

4, 2 auxiliary cable cores of auxiliary cable core 2 have 5, and 3 nests of auxiliary cable core are in the filling layer, 5 auxiliary cable cores 2 are annular equidistance around main cable core 1 and distribute. The filling layer comprises an elastic layer 13 and a toughening layer 14, the elastic layer 13 is fixedly sleeved outside the main cable core 1, the toughening layer 14 is sleeved outside the elastic layer 13, the auxiliary cable core 2 is nested at the joint of the elastic layer 14 and the toughening layer 13, and the elastic layer 14, the toughening layer 13, the flame retardant layer 15 and the first insulating layer 4 are connected through adhesive adhesion. The main cable core 1 comprises a main conductor, an insulating layer and a shielding layer are wrapped on the main conductor, the auxiliary cable core 2 is formed by twisting 5 electric wire conductors, the outer portion of each conductor is wrapped with a wrapping layer, and the outer portion of each wrapping layer is sequentially wrapped with the insulating layer and the shielding layer.

Be provided with the shock attenuation unit between armor 7 and the waterproof layer 6, the shock attenuation unit includes locating piece 8, shock attenuation post 9 and spring 10, shock attenuation post 9 is annular equidistance around waterproof layer 6 and distributes, and 9 one end of shock attenuation post and waterproof layer 6 fixed connection, the 9 other end of shock attenuation post and locating piece 8 fixed connection, locating piece 8 is fixed to be set up on armor 7, spring 10 cover is established on shock attenuation post 9, and 10 one end of spring and 8 fixed connection of locating piece, the other end and waterproof layer 6 fixed connection. When the outdoor cable receives external force impact when receiving external force and assaults, shock attenuation post 9 and spring 10 mutually support and can play certain cushioning effect to reduce cable core vibrations and cause wearing and tearing. The armor layer 7 is sequentially sleeved with a second insulating layer 5, a fireproof layer 11 and an outer protective sleeve 12. The surface of the outer protective sleeve 12 is integrally provided with wear resistant strips 16, and the wear resistant strips 16 are distributed in an annular shape at equal intervals by taking the center of the outer protective sleeve 12 as a circle center. The wear-resistant strips 16 annularly arranged on the outer protective sleeve 12 effectively prevent the outer protective sleeve 13 from directly contacting with the ground, and prevent the wires and cables from being worn when being moved. The interior of the armor layer 7 is a net structure woven by steel wires, and the toughening layer 13 is woven by polyvinyl alcohol fibers. The first insulating layer 4 and the second insulating layer 5 both adopt polytetrafluoroethylene wrapping layers, and the material has excellent electrical insulating property, high insulating resistance, high voltage resistance, flame resistance and aging resistance, and is long in service life. Can improve fire resistance, high temperature resistance and electrical insulation.

The utility model discloses when using, when this cable received vibrations because external factors etc. shock attenuation post 9 and spring 10 mutually support and can play certain cushioning effect to external force of shock attenuation unit to reduce the cable core and cause wearing and tearing because vibrations. Through the wear-resistant strips 16 annularly arranged on the outer protective sleeve 12, the outer protective sleeve 13 is effectively prevented from directly contacting the ground, and the wires and cables are prevented from being worn when being moved. Through the elastic layer 7 that sets up between auxiliary cable core 2 and main cable core 1, effectually avoided when electric wire receives the extrusion auxiliary cable core 2 and main cable core 1 between produce the contact, the friction between auxiliary cable core 2 and the main cable core 1 has been avoided, the effectual life who improves this electric wire and cable, layer 13 is the setting of weaving by the polyvinyl alcohol fibre toughening, can effectively improve the toughness of this cable, the practicality of this cable has been strengthened, and the effectual life who increases this electric wire and cable.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.

Although the embodiments have been described, once the basic inventive concept is known, other changes and modifications can be made to the embodiments by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all the modifications of the equivalent structure or equivalent flow path using the contents of the specification and the drawings of the present invention, or directly or indirectly using other related technical fields are also included in the scope of the present invention.

Claims

1. The utility model provides a stand wear and tear outdoor cable, a serial communication port, including the cable core, by interior fire-retardant layer, waterproof layer, armor, second insulating layer and outer protective sheath of having set gradually outside to on the cable core, be provided with the filling layer in the fire-retardant layer, the cable core includes main cable core and supplementary cable core, supplementary cable core has at least one, and supplementary cable core nestification is in the filling layer, supplementary cable core uses main cable core to be the annular distribution as the center, the filling layer includes elastic layer and toughening layer, the fixed cover of elastic layer is established outside main cable core, toughening layer cover is established outside the elastic layer, main cable core and supplementary cable core all overlap outward and are equipped with shielding layer and first insulating layer, the fixed shock attenuation unit that is provided with between waterproof layer and the armor.

2. The outdoor abrasion-resistant cable according to claim 1, wherein the shock absorption unit comprises a positioning block, a spring and shock absorption columns, the shock absorption columns are distributed around the waterproof layer in an annular shape at equal intervals, one end of each shock absorption column is fixedly connected with the waterproof layer, the other end of each shock absorption column is fixedly connected with the positioning block, the positioning block is fixedly arranged on the armor layer, the spring is sleeved on the shock absorption columns, one end of the spring is fixedly connected with the positioning block, and the other end of the spring is fixedly connected with the waterproof layer.

3. A wear resistant outdoor cable in accordance with claim 1 further comprising a fire barrier layer fixedly disposed between the second insulating layer and the outer protective sheath.

4. The wear-resistant outdoor cable of claim 1, wherein the flame-retardant layer and the elastic layer are fixedly connected with the toughening layer, the number of the auxiliary cable cores is 5, the auxiliary cable cores are distributed in an annular and equidistant manner by taking the main cable core as a center, and the auxiliary cable cores are nested at the connection positions of the elastic layer and the toughening layer.

5. A wear-resistant outdoor cable according to claim 1, wherein the outer protective sheath has wear-resistant strips integrally formed on the surface thereof, and the wear-resistant strips are annularly and equidistantly distributed around the center of the outer protective sheath.

6. A wear resistant outdoor cable according to claim 1, wherein the inside of the armor layer is a net structure woven by steel wires.

7. A wear resistant outdoor cable according to claim 1, wherein said toughening layer is woven from polyvinyl alcohol fibers.