CN213545969U

CN213545969U - Bending-resistant cable

Info

Publication number: CN213545969U
Application number: CN202023066361.6U
Authority: CN
Inventors: 张健
Original assignee: Tong Cable Electric Co ltd
Current assignee: Tong Cable Electric Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-06-25
Anticipated expiration: 2030-12-18

Abstract

The utility model relates to the technical field of cables, in particular to a bending-resistant cable, which comprises a filling body, a plurality of conductor wires are arranged in the filling body and are arranged in a row in the filling body, the outer wall of the filling body is provided with a heat insulation layer, the outer wall of the heat insulation layer is provided with bending rings, the top of each bending ring is provided with a protective layer, the protective layers are bent inwards between the bending rings, the bending-resistant cable has the advantages that the conductor wires are arranged in the filling body in a row, so that the phenomenon that the outer side body core is bent and deformed too much is avoided, the performance of the conductor core is reduced, the bending-resistant capability of the bending-resistant cable is enhanced, the bending ring can effectively prevent the conductor core from being broken due to the too large bending angle, the bending-resistant cable is prevented from being scrapped due to the excessive bending, the protective layer with redundant length is arranged between the bending rings in an inward bending mode, so that the protective layer can be prevented from being broken or torn, and the service life of the protective layer is prolonged.

Description

Bending-resistant cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a resistant cable of buckling.

Background

A cable is a conductor made of one or more conductors insulated from each other and an outer insulating sheath that carries power or information from one location to another. When being equipped with many conductors in a cable, make many conductors cooperation filler group into the cylinder usually, when the cable was bent, outside conductor deflection can be bigger, influences cable performance and life, and outside protective material is relatively poor owing to lack elasticity moreover, and deformation and damage appear easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a bending-resistant cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the bending-resistant cable comprises a filling body, wherein a plurality of conductor wires are arranged in the filling body, the conductor wires are arranged in a row in the filling body, a heat insulation layer is arranged on the outer wall of the filling body, a bending ring is arranged on the outer wall of the heat insulation layer, a protective layer is arranged on the top of the bending ring and is bent inwards between the bending rings, the protective layer comprises an outer protective sleeve, a waterproof layer, a fireproof layer and a flame-retardant layer, the bending ring is bonded on the inner wall of the outer protective sleeve, the waterproof layer is bonded on the outer wall of the outer protective sleeve, the fireproof layer is bonded on the outer wall of the waterproof layer, the flame-retardant layer is bonded on the outer wall of the fireproof layer, the conductor wires comprise conductor cores, insulating layers, anti-interference layers and inner protective sleeves, the insulating layers are sleeved on the outer walls of the conductor cores, the anti-interference layers, and the outer wall of the inner protective sleeve is bonded with a filling body.

Preferably, the interior of the filling body is provided with a pulling-resistant steel wire.

Preferably, the outer wall of the flame-retardant layer is coated with an oxidation-resistant and wear-resistant coating.

Preferably, the outer protective sleeve is formed by bonding elastic rubber and high-bending-strength nylon cloth.

Preferably, the anti-interference layer is woven by copper wires.

The utility model provides a pair of resistant cable of buckling, beneficial effect lies in: this resistant cable of buckling is through arranging the conductor line into one row at the obturator, it is too big to avoid outside body core bending deformation, reduce the performance of conductor core, strengthen this resistant cable of buckling's resistant ability of buckling, the ring of bending can effectively prevent to bend the angle and excessively make the conductor core rupture, avoid this resistant cable of bending to scrap because bend excessively, set up the unnecessary protective layer of length through bending in between the ring of bending and can avoid the protective layer to crowd brokenly or tear, the life of extension protective layer.

Drawings

Fig. 1 is a schematic sectional structure view of a bending-resistant cable provided by the present invention;

fig. 2 is a schematic view of an external structure of a bending-resistant cable according to the present invention;

fig. 3 is a schematic view of a conductor line structure of a bending-resistant cable according to the present invention;

fig. 4 is the utility model provides a resistant protective sheath structural sketch of cable of buckling.

In the figure: 1. a conductor line; 2. a filler; 3. a thermal insulation layer; 4. bending the ring; 5. a protective layer; 6. pulling-resistant steel wires; 7. a conductor core; 8. an insulating layer; 9. an anti-interference layer; 10. an inner protective sheath; 11. an outer protective sheath; 12. a waterproof layer; 13. a fire barrier layer; 14. a flame retardant layer.

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.

Referring to fig. 1-4, a bending-resistant cable comprises a filling body 2, a plurality of conductor wires 1 are arranged inside the filling body 2, the conductor wires 1 are arranged in a row inside the filling body 2, a heat insulation layer 3 is arranged on the outer wall of the filling body 2, a bending ring 4 is arranged on the outer wall of the heat insulation layer 3, a protective layer 5 is arranged on the top of the bending ring 4, the protective layer 5 is bent inwards between the bending rings 4, the protective layer 5 comprises an outer protective sleeve 11, a waterproof layer 12, a fireproof layer 13 and a flame-retardant layer 14, the bending ring 4 is bonded on the inner wall of the outer protective sleeve 11, the waterproof layer 12 is bonded on the outer wall of the outer protective sleeve 11, the fireproof layer 13 is bonded on the outer wall of the waterproof layer 12, the flame-retardant layer 14 is bonded on the outer wall of the fireproof layer 13, the conductor wires 1 comprises a conductor core 7, an insulating layer 8, an anti-interference layer 9 and an inner protective sleeve 10, the outer wall bonding obturator 2 of interior protective sheath 10, the inside of obturator 2 is equipped with the tensile steel wire 6 of dragging, and the outer wall coating on fire-retardant layer 14 has anti-oxidant wear-resisting coating, and outer protective sheath 11 is formed through bonding by elastic rubber and high bending strength nylon cloth, and anti-interference layer 9 is woven by the copper wire and is formed.

The working principle is as follows: the conductor wires 1 are arranged in a row in the filling body 2, so that the stress of each conductor core 7 is the same when the conductor wires are bent, and the outer side body core 7 is prevented from being deformed too much under the action of the inner side body core 7 and the bending force; during bending, the protective layer 5 with redundant length is arranged between the bending rings 4 in an inward bending mode, the deformation of the outer protective layer 5 is compensated by straightening, extrusion is replaced by the inward bending mode, and excessive deformation caused by extrusion of the inner protective layer 5 and the outer protective layer 5 are prevented from being pulled apart; through 4 stops the too big conductor core 7 rupture of messenger of angle of bending of ring, prevents through insulating layer 3 that the temperature from influencing conductor core 7, avoids conductor core 7 to receive external world and mutual electromagnetic interference through anti-interference layer 9, pulls 6 reinforcing cables tensile ability of tearing through the tensile, through waterproof layer 12, flame retardant coating 13 and 14 waterproof fire prevention on fire-retardant layer.

This resistant cable of buckling is through arranging conductor line 1 into one row at obturator 2, avoid outside body core 7 bending deformation too big, reduce the performance of conductor core 7, strengthen this resistant ability of buckling of the resistant cable of buckling, ring 4 of bending can effectively prevent to bend the angle and excessively make conductor core 7 rupture, avoid this resistant cable of buckling to scrap because bend excessively, it can avoid 5 crowds of protective layer or tear through the protective layer 5 that the inturn sets up length between ring 4 of bending, prolong 5's of protective layer life.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The bending-resistant cable comprises a filling body (2) and is characterized in that a plurality of conductor lines (1) are arranged inside the filling body (2), the conductor lines (1) are arranged in a row inside the filling body (2), a heat insulation layer (3) is arranged on the outer wall of the filling body (2), a bending ring (4) is arranged on the outer wall of the heat insulation layer (3), a protective layer (5) is arranged on the top of the bending ring (4), the protective layer (5) is bent inwards between the bending rings (4), the protective layer (5) comprises an outer protective sleeve (11), a waterproof layer (12), a fireproof layer (13) and a flame-retardant layer (14), the bending ring (4) is bonded on the inner wall of the outer protective sleeve (11), the waterproof layer (12) is bonded on the outer wall of the outer protective sleeve (11), the flame-retardant layer (13) is bonded on the outer wall of the waterproof layer (12), and the flame-retardant layer (14) is bonded on the outer wall of, conductor line (1) includes conductor core (7), insulating layer (8), anti-interference layer (9) and interior protective sheath (10), the outer wall of conductor core (7) cup joints insulating layer (8), the outer wall of insulating layer (8) cup joints anti-interference layer (9), the outer wall of anti-interference layer (9) cup joints interior protective sheath (10), the outer wall bonding obturator (2) of interior protective sheath (10).

2. A bend-resistant cable according to claim 1, characterized in that the interior of the filling body (2) is provided with a tensile steel wire (6).

3. Bend-resistant cable according to claim 1, characterized in that the outer wall of the flame-retardant layer (14) is coated with an oxidation-resistant and wear-resistant coating.

4. A bend-resistant cable according to claim 1, characterized in that the outer protective sheath (11) is made of elastic rubber and high-bending-strength nylon cloth by bonding.

5. A bend-resistant cable according to claim 1, characterised in that the tamper-resistant layer (9) is braided from copper wire.