CN218384542U

CN218384542U - Tensile rubber jacketed flexible cable resistant to external force

Info

Publication number: CN218384542U
Application number: CN202222948912.4U
Authority: CN
Inventors: 甘叶凡; 沈志海; 沈志荣
Original assignee: Anhui Huahai Special Cable Group Co Ltd
Current assignee: Anhui Huahai Special Cable Group Co Ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-01-24
Anticipated expiration: 2032-11-04

Abstract

The utility model provides an external force resistant tensile rubber jacketed flexible cable, concretely relates to cable technical field, wire including quantity greater than two, the wire is around the cyclic annular distribution in the same centre of a circle, the common centre of a circle department that centers on of wire is equipped with the plastic sleeve, the wire with the laminating of plastic sleeve, include the strengthening rib in the plastic sleeve, the plastic sleeve with the strengthening rib laminating, the plastic sleeve with be equipped with the tensile steel wire in the clearance that forms between the wire, the wire encircles the outside edge that forms and is equipped with the inner insulating layer, the inner insulating layer with the wire is all laminated, the obturator has been filled up in space department in the inner insulating layer, be equipped with the outer jacket around the outside of covering, the outer jacket includes from interior to exterior shielding layer of cladding in proper order, weaving layer, armoured cable mechanical protection layer to and cable oversheath, solved the poor problem of cable pull resistance in the current application.

Description

Tensile rubber jacketed flexible cable resistant to external force

Technical Field

The utility model belongs to the technical field of the cable, concretely relates to tensile rubber jacketed flexible cable of external force resistant.

Background

At present, with the rapid development of national economy, the using amount and the using range of the electric wire and the electric cable serving as the main artery of the national economy are larger and larger, the electric wire and the electric cable occupy important positions in the industrial proportion of China, particularly in our life and industrial manufacturing, the environment used by some electric wires and electric cables is severe, the electric wires and the electric cable are dragged on the ground along with the movement of equipment sometimes and are continuously rubbed, the electric cables are easily broken, and therefore the service life of the electric wire and the electric cable is shortened. Therefore, a tensile rubber-sheathed flexible cable resistant to external force is required.

Disclosure of Invention

To prior art's not enough, this disclosed aim at provides an external force resistant tensile rubber cover flexible cable, has solved the poor problem of cable tensile nature in the current application.

The purpose of the disclosure can be realized by the following technical scheme:

including quantity be greater than two wire, the wire is around the cyclic annular distribution of the same centre of a circle, the centre of a circle department that the wire centers on jointly is equipped with the plastic sleeve, the wire with the laminating of plastic sleeve, the plastic sleeve is equipped with the strengthening rib, the plastic sleeve with be equipped with the tensile steel wire in the clearance that forms between the wire, the wire encircles the outside edge that forms and is equipped with the internal insulation layer, the internal insulation layer with the wire is all laminated, the intraformational space department of internal insulation has been filled up with the obturator.

The above technical scheme has the following principle and effects:

the reinforcing rib is arranged into a spiral structure and is similar to a spring in shape, the reinforcing rib supports the leads from the inner side, the plastic sleeve which is inserted among the five leads is sleeved on the outer side of the reinforcing rib, the outer wall of the plastic sleeve is attached to the outer wall of the columnar sleeve, and the reinforcing rib is attached to and supported on the inner wall of the plastic sleeve; thereby exert external force to the cable and take place the deformation back, the strengthening rib takes place deformation, after the external force that applys to the cable disappears, because there is elasticity in strengthening rib itself, can resume naturally to original shape, resume naturally to the in-process of original shape at the strengthening rib, the inner structure of this cable of drive that can be natural resets, plays resistant external force effect.

The nouns, conjunctions or adjectives involved in the above technical solutions are explained as follows:

insulating layer: the insulating layer is a component which is coated around the periphery of the lead and plays an electric insulation role.

Reinforcing ribs: in the structural design process, the condition that the overhanging surface of the structural body is too large or the span is too large may occur, under the condition that the load which can be borne by the connecting surface of the structural body is limited, a reinforcing plate (named as a reinforcing rib JIN rib in engineering) is added on the common vertical surface of the two combined bodies so as to increase the strength of the combining surface, and the reinforcing rib is arranged into a spiral structure and has the shape similar to a spring in function.

Filling material: the filler is used for making the outer diameter of the cable relatively round so as to be beneficial to wrapping and sheath squeezing, and also used for making the cable structure stable and internal calculus, and the cable is uniformly stressed in use (when being stretched, compressed and bent in manufacturing and laying) without damaging the internal structure of the cable. Therefore, the filler is an auxiliary structure, but is also necessary.

The beneficial effect of this disclosure: the utility model relates to a tensile rubber jacketed flexible cable of resistant external force can solve the poor problem of cable pull resistance in the current application.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of an embodiment of the present disclosure;

FIG. 2 is a schematic view of an inner insulating layer of an embodiment of the disclosure;

fig. 3 is a schematic view of a conductive line structure according to an embodiment of the disclosure.

Wherein 1, conducting wires; 101. a metal wire; 102. a columnar sleeve; 103. a support pillar; 2. a tensile steel wire; 3. reinforcing ribs; 301. a plastic sleeve; 4. a filler; 5. an inner insulating layer; 6. halogen-free low-smoke flame-retardant belt layer; 7. a thermal insulation layer; 8. wrapping a covering; 9. an outer jacket; 10. a shielding layer; 11. weaving layer; 12. a mechanical armor layer of the armored cable; 13. and a cable outer sheath.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

As shown in fig. 1, the embodiment of the utility model provides an external force resistant tensile rubber jacketed flexible cable, wire 1 including quantity greater than two, 1 ring-shaped distribution of wire just centers on the same centre of a circle, the centre of a circle department that wire 1 centers on jointly is equipped with plastic sleeve 301, wire 1 laminates with plastic sleeve 301, include strengthening rib 3 in the plastic sleeve 301, plastic sleeve 301 laminates with strengthening rib 3, be equipped with tensile steel wire 2 in the clearance that forms between plastic sleeve 301 and the wire 1, wire 1 encircles the outside edge that forms and is equipped with inner insulating layer 5, inner insulating layer 5 all laminates with wire 1, space department in the inner insulating layer 5 has been filled up with obturator 4.

The number of the leads 1 can be adjusted according to actual use requirements; in an optical cable for an optical communication network, which has been rapidly developed in almost thirty years, an optical fiber is used as a lead 1; the filling body 4 can be selected from a polypropylene belt, a non-woven fabric PP rope, a hemp rope or a common cheaper material processed by recycled rubber, and an inner insulating layer 5; the inner insulating layer 5 can be selected from polyvinyl chloride (PVC), polyethylene, cross-linked polyethylene (XLPE); the number of the compression-resistant steel wires can be designed to be one compression-resistant steel wire arranged between every two wires 1.

Because the reinforcing ribs 3 are arranged into a spiral structure and are similar to springs in shape, the reinforcing ribs 3 support the leads 1 from the inner side, the plastic sleeves 301 which are inserted among the five leads 1 are sleeved on the outer sides of the reinforcing ribs 3, the outer walls of the plastic sleeves 301 are attached to the outer walls of the cylindrical sleeves 102, and the reinforcing ribs 3 are attached to and supported on the inner walls of the plastic sleeves 301; thereby exert external force and take place the deformation back to the cable, the deformation takes place for strengthening rib 3, after the external force that applys to the cable disappears, because there is elasticity in strengthening rib 3 itself, can resume naturally to original shape, at the in-process that strengthening rib 3 resumes naturally to original shape, the inner structure of this cable of drive that can be natural resets, plays external force resistant effect.

The lead 1 comprises a plurality of stranded metal wires, a cylindrical sleeve 102 fixedly connected with the metal wires 101 is arranged on the outer side of the metal wires 101, and a supporting column 103 attached to the metal wires 101 is arranged on the inner side of the metal wires 101.

The lead 1 is generally made of nonferrous metals with excellent conductivity, such as copper, aluminum and the like; the material of the cylindrical sleeve 102 can be changed according to actual use requirements, and the support column 103 plays a role in supporting the winding and twisting of the metal wire 101.

The outside from interior to exterior of internal insulation layer 5 has the cladding of halogen-free low smoke flame retardant belt layer 6, insulating layer 7 in proper order, around covering 8.

The halogen-free low-smoke flame-retardant belt layer 6 and the heat-insulating layer 7 both play a flame-retardant role and belong to the flame-retardant part of the cable, and are not described in detail in the disclosure.

Around covering 8: in the using process of the cable, the wire is made into a cylindrical shape, so that the wire is prevented from being loosened; the cable insulation or the inner sheath layer has different functions of heat insulation, corrosion resistance or aging resistance and the like due to different materials; the protective insulation or inner sheath layer is not damaged by armor when the cable is armored, and plays roles of buffering and padding; the signal is not interfered; and the insulation function is realized between the conductor and the shielding wire.

An outer protective layer 9 is arranged on the outer side of the wrapping layer 8, and the outer protective layer 9 comprises a shielding layer 10, a weaving layer 11, an armored cable mechanical protection layer 12 and a cable outer sheath 13 which are sequentially coated from inside to outside.

The outer sheath 9: the outer sheath 9 is a protective covering layer covering the cable sheath (inner sheath) and mainly plays a role in mechanical reinforcement and corrosion prevention

The shielding layer 10: the shielding layer 10 of the shielded cable is mainly made of non-magnetic materials such as copper and aluminum, and has a very thin thickness which is much smaller than the skin depth of a metal material at a use frequency, and the effect of the shielding layer 10 is mainly generated not by the reflection and absorption of a metal body to an electric field and a magnetic field, but by the grounding of the shielding layer 10, and the grounding form is different, which directly affects the shielding effect.

Weaving layer 11: the braided layer 11 is one of the various sheaths or outer sheaths 9 of the electric wires and cables, and the braided layer 11 here can be selected as a steel wire braid, and the main function of the steel wire braid is: 1. mechanical protection, such as a power cable for ships CF 31. 2. Bear longitudinal tensile force, such as WC-GC and WCT types of the magnetic measuring cable for marine geological exploration.

Mechanical armor layer 12 of armored cable: armouring means that the cable which is subjected to large mechanical forces should have an armouring layer, i.e. a layer of metal protection is added on the outermost side of the product in order to prevent the inner utility layer from being damaged during transportation and installation. Should have 1 layer of crowded package that accords with regulation thickness or around the package inner liner layer below the cable forge dress layer, armoured cable means the cable that has metal material armor protective layer, and the cable can also improve the cable interference killing feature through shielding protection except mechanical protection extension life such as reinforcing tensile strength, compressive strength with the purpose of armor.

Cable jacket 13: the outer sheath 13 of the cable is made of PVC (polyvinyl chloride) and PE (polyethylene), and mainly functions to protect the inner sheath from mechanical damage and chemical corrosion and to increase the mechanical strength of the cable, i.e. to provide tensile and compressive strength.

The working principle is as follows: the reinforcing rib is arranged into a spiral structure and is similar to a spring in shape, the reinforcing rib supports the leads from the inner side, the plastic sleeve which is inserted among the five leads is sleeved on the outer side of the reinforcing rib, the outer wall of the plastic sleeve is attached to the outer wall of the columnar sleeve, and the reinforcing rib is attached to and supported on the inner wall of the plastic sleeve; thereby exert external force and take place the deformation back to the cable, the strengthening rib takes place deformation, after the external force that applys to the cable disappears, because there is elasticity in strengthening rib itself, can resume to original shape naturally, resume to the in-process of original shape naturally at the strengthening rib, the inner structure of this cable of drive that can be natural resets, plays external force resistant effect.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing illustrates and describes the general principles, principal features, and advantages of the present disclosure. It will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, which are presented solely for purposes of illustrating the principles of the disclosure, and that various changes and modifications may be made to the disclosure without departing from the spirit and scope of the disclosure, which is intended to be covered by the claims.

Claims

1. The utility model provides a tensile rubber jacketed flexible cable of resistant external force which characterized in that: wire (1) that is greater than two including quantity, wire (1) distributes around the same centre of a circle ring-type, the centre of a circle department that wire (1) centers on jointly is equipped with plastic sleeve pipe (301), wire (1) with plastic sleeve pipe (301) laminating, be equipped with strengthening rib (3) in plastic sleeve pipe (301), plastic sleeve pipe (301) with be equipped with tensile steel wire (2) in the clearance that forms between wire (1), wire (1) encircles the outside edge that forms and is equipped with interior insulating layer (5), interior insulating layer (5) with wire (1) all laminates, space department in interior insulating layer (5) has been filled up with obturator (4).

2. The external force resistant tensile cabtyre flexible cable according to claim 1, wherein: wire (1) includes wire (101), the outside of wire (101) is equipped with column cover (102) with wire (101) fixed connection, the inboard of wire (101) is equipped with support column (103) with wire (101) laminating.

3. The external force resistant tensile cabtyre flexible cable according to claim 1, wherein: the outside from interior to exterior of interior insulating layer (5) has cladding in proper order and has steamed low fire-retardant belting layer of cigarette (6), insulating layer (7), winds covering (8).

4. The external force resistant tensile cabtyre flexible cable according to claim 3, wherein: the cable is characterized in that an outer protective layer (9) is arranged on the outer side of the wrapping layer (8), and the outer protective layer (9) comprises a shielding layer (10), a woven layer (11), an armored cable mechanical protective layer (12) and a cable outer sheath (13) which are sequentially coated from inside to outside.