CN219575203U - Multi-core branch combined cable - Google Patents

Abstract

The utility model discloses a multi-core branch combined cable, which comprises an outer sheath, an inner sheath, a cable core body and an anti-bending structure, wherein the inner sheath is arranged on the inner side of the outer sheath, a central supporting column is arranged at the central position inside the inner sheath, the cable core body is arranged inside the inner sheath between supporting ribs, the anti-bending structure is arranged on the outer side of the inner sheath, the anti-bending sheath, a cavity, a first arc-shaped elastic sheet and a second arc-shaped elastic sheet are sequentially arranged inside the anti-bending structure, the anti-bending sheath is arranged on the outer side of the inner sheath, the cavity is arranged inside the anti-bending sheath, equidistant first arc-shaped elastic sheets are fixed on the inner wall on one side of the cavity, and equidistant second arc-shaped elastic sheets are fixed on the inner wall on the other side of the cavity. The utility model not only improves the bending resistance of the cable, has good heat insulation and flame retardance, but also is not easy to wear and crack and is more durable.

Description

Multi-core branch combined cable

Technical Field

The utility model relates to the technical field of cables, in particular to a multi-core branch combined cable.

Background

The cable is an electric energy or signal transmission device, generally composed of a conducting wire, an insulating layer and a protective layer, and the electric wire and the cable are necessarily present in places where electric power exists, so to speak, all industrial production, transportation, construction engineering, modern agriculture, scientific research work, military equipment, space and ocean exploration comprise daily life of people, and the multi-core cable refers to a cable with more than one insulating wire core.

1. The bending resistance of the multi-core branch combined cable is common, when the cable is subjected to bending force or extrusion, the cable core in the multi-core branch combined cable is directly stressed to cause deformation or damage, and the multi-core branch combined cable is difficult to restore to the original state, so that certain defects exist; 2. the multi-core branch combined cable has common heat insulation and flame retardance, and is easy to damage when the cable encounters high temperature or open fire, so that power interruption is caused; 3. the abrasion resistance of the multi-core branch combined cable is common, the cable is directly rubbed with the ground, the wall surface or other objects, abrasion is easy to generate, and the sheath is broken, so that the risk of electric leakage or faults is increased.

Disclosure of Invention

The present utility model is directed to a multi-core branch combination cable for solving the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a multicore branch combination cable, includes oversheath, cable core and anti structure of buckling, the oversheath sets up the inboard at the oversheath, the inside central point of oversheath puts the department and is provided with the center support column, just all be fixed with the supporting rib on the outer wall of center support column, the cable core all establishes the inside of oversheath between the supporting rib, anti structure of buckling sets up the outside of oversheath, anti structure of buckling's inside has set gradually anti sheath, cavity, first arc shell fragment, second arc shell fragment of buckling, the outside of oversheath is provided with anti sheath of buckling, just anti sheath of buckling glues with the oversheath through first sticky layer, anti inside of buckling is provided with the cavity, just all be fixed with equidistant first arc shell fragment on the inner wall of cavity one side, and all be fixed with equidistant second arc shell fragment on the inner wall of cavity opposite side, second arc shell fragment contacts with first arc shell fragment.

Preferably, the outer surface of the outer sheath is coated with a wear-resistant layer, so that the wear resistance of the outer sheath is improved.

Preferably, the outer walls of the outer jackets are sleeved with equidistant armor rings, so that the cable does not directly rub against the ground, the wall surface or other objects, and the outer jackets play a role in protection.

Preferably, a shielding layer is arranged on the inner wall of the inner sheath, so that shielding and anti-interference effects are achieved.

Preferably, the outside of anti structure of buckling is provided with first fire-retardant layer, and first fire-retardant layer glues the glutinous structure of buckling through the second glues glutinous layer, has played thermal-insulated, fire-retardant effect.

Preferably, the bending-resistant sheath is made of a mixed material of polyurethane and Kevlar fiber, and has the characteristics of good toughness and good bending-resistant effect.

Preferably, the outside of first fire-retardant layer is provided with the fire-retardant layer of second, just twine on the outer wall of fire-retardant layer of second has the glass fiber area, and the glass fiber area glues with the oversheath through the third glues the glutinous layer and glues, has further strengthened fire resistance.

Preferably, the second flame retardant layer and the first flame retardant layer are respectively a low-smoke halogen-free polyolefin material and a ceramic silicone rubber material, and have good high temperature resistance and flame retardant property.

Compared with the prior art, the utility model has the beneficial effects that: the multi-core branch combined cable not only improves the bending resistance of the cable, has good heat insulation and flame retardance, but also is not easy to wear and crack and is more durable;

(1) Through being provided with anti sheath, cavity, first arc shell fragment, second arc shell fragment, central support column, supporting rib, when the cable receives the bending force or receives the extrusion, the effort is transmitted for anti bending structure, wherein, anti bending sheath adopts polyurethane and kevlar fibre mixed material, toughness is good, anti bending effect is good, the inside first arc shell fragment of cavity and second arc shell fragment atress are extrudeed each other and consume the effort, prevent that the effort from exclusively giving the cable core and causing the deformation or the damage of cable core, and central support column and supporting rib play the effect of support to cable inner structure, thereby the anti bending performance of cable has been promoted, and anti bending structure's resilience is effectual, the cable can resume the original state rapidly after external force disappears;

(2) The first flame-retardant layer, the second flame-retardant layer and the glass fiber tape are arranged in the cable, and the first flame-retardant layer and the second flame-retardant layer are sequentially arranged in the cable, so that the first flame-retardant layer is made of ceramic silicon rubber material, the second flame-retardant layer is made of low-smoke halogen-free polyolefin material, and has good high temperature resistance and flame retardance, and the glass fiber tape is wound on the surface of the second flame-retardant layer, so that the fire resistance is further enhanced, and the heat insulation and flame retardance of the cable are improved;

(3) Through being provided with oversheath, inner sheath, wearing layer, armor circle, the wearing layer on the oversheath outer wall has strengthened the wear resistance of cable, and the setting of armor circle makes the cable not directly rub with ground, wall or other objects, and the oversheath has played the effect of protection, and this cable adopts the double-deck sheath structure of oversheath and inner sheath moreover, and is effectual to the protection of cable core to make the difficult wearing and tearing of cable break, it is more durable.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is an enlarged schematic view of the inner sheath according to the present utility model;

FIG. 3 is an enlarged view of the bending-resistant structure of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

fig. 5 is a schematic elevational view of the present utility model.

In the figure: 1. an outer sheath; 2. an inner sheath; 3. a central support column; 4. a support rib; 5. a cable core; 6. a bending resistant structure; 601. a buckling resistant sheath; 602. a cavity; 603. a first arc-shaped elastic sheet; 604. a second arc-shaped elastic sheet; 7. a first adhesive layer; 8. a second adhesive layer; 9. a shielding layer; 10. a first flame retardant layer; 11. a second flame retardant layer; 12. a glass fiber tape; 13. a third adhesive layer; 14. a wear-resistant layer; 15. an armor ring.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.

Referring to fig. 1-5, an embodiment of the present utility model is provided: the multi-core branch combined cable comprises an outer sheath 1, an inner sheath 2, a cable core 5 and an anti-bending structure 6, wherein the inner sheath 2 is arranged at the inner side of the outer sheath 1;

the inner wall of the inner sheath 2 is provided with a shielding layer 9 which plays roles of shielding and anti-interference;

a central support column 3 is arranged at the central position inside the inner sheath 2, and support ribs 4 are fixed on the outer walls of the central support column 3;

the cable cores 5 are all arranged in the inner sheath 2 between the supporting ribs 4;

the bending-resistant structure 6 is arranged outside the inner sheath 2;

the bending-resistant sheath 601, the cavity 602, the first arc-shaped elastic sheet 603 and the second arc-shaped elastic sheet 604 are sequentially arranged in the bending-resistant structure 6;

the outer side of the inner sheath 2 is provided with an anti-bending sheath 601, and the anti-bending sheath 601 is adhered to the inner sheath 2 through a first adhesive layer 7;

a cavity 602 is arranged in the bending-resistant sheath 601, first arc-shaped elastic pieces 603 with equal intervals are fixed on the inner wall of one side of the cavity 602, second arc-shaped elastic pieces 604 with equal intervals are fixed on the inner wall of the other side of the cavity 602, and the second arc-shaped elastic pieces 604 are contacted with the first arc-shaped elastic pieces 603;

the bending-resistant sheath 601 is made of a mixed material of polyurethane and Kevlar fiber, and has the characteristics of good toughness and good bending-resistant effect;

the first flame-retardant layer 10 is arranged on the outer side of the bending-resistant structure 6, and the first flame-retardant layer 10 is adhered to the bending-resistant structure 6 through the second adhesive layer 8, so that the effects of heat insulation and flame retardance are achieved;

the second flame retardant layer 11 is arranged on the outer side of the first flame retardant layer 10, the glass fiber tape 12 is wound on the outer wall of the second flame retardant layer 11, and the glass fiber tape 12 is adhered to the outer sheath 1 through the third adhesive layer 13, so that the fire resistance is further enhanced;

the second flame-retardant layer 11 and the first flame-retardant layer 10 are respectively a low-smoke halogen-free polyolefin material and a ceramic silicone rubber material, and have good high temperature resistance and flame retardance;

the outer surface of the outer sheath 1 is coated with the wear-resistant layer 14, so that the wear resistance of the outer sheath 1 is improved;

equidistant armor rings 15 are sleeved on the outer wall of the outer sheath 1, so that the cable does not directly rub against the ground, the wall surface or other objects, and the outer sheath 1 plays a role in protection.

When the embodiment of the utility model is used, the following steps are adopted: firstly, when this cable receives bending force or receives the extrusion, the effort transmission is for anti bending structure 6, wherein, anti bending sheath 601 adopts polyurethane and kevlar fibre mixed material, toughness is good, anti bending effect is good, the inside first arc shell fragment 603 of cavity 602 and second arc shell fragment 604 atress are extrudeed each other and consume the effort, prevent that effort from being exclusively given to cable core 5 and cause the deformation or the damage of cable core 5, and center support column 3 and supporting rib 4 have played the effect of support to cable inner structure, thereby the bending resistance performance of cable has been promoted, and anti bending structure 6's resilience effect is good, the cable can resume to the original form rapidly after the external force disappears, then, because the inside of cable is equipped with first flame retardant layer 10 and second flame retardant layer 11 in proper order, first flame retardant layer 10 is ceramic silicon rubber material, second flame retardant layer 11 is low smoke and zero halogen polyolefin material, all have good high temperature resistant and fire retardant property, and the surface winding of second flame retardant layer 11 has glass fiber ribbon 12, further strengthened fire-resistant performance, thereby the thermal-proof performance of cable has been promoted, and the outer wall surface of outer wall 1 has improved, and cable 14 on the outer wall 1 has been used for making wear-resistant cable and wear-resistant layer 1, the wear-resistant layer is better than the cable is broken, the wear-resistant layer is arranged with the cable is better, the outer wall is protected to the cable is made to the cable is better, the wear-resistant, the cable is protected with the inner layer is better, the cable is protected and has better wear-resistant, and has better protection performance.

Claims (7)

1. The multi-core branch combined cable is characterized by comprising an outer sheath (1), an inner sheath (2), a cable core body (5) and an anti-bending structure (6), wherein the inner sheath (2) is arranged on the inner side of the outer sheath (1), a central supporting column (3) is arranged at the central position of the inner sheath (2), supporting ribs (4) are fixed on the outer wall of the central supporting column (3), the cable core body (5) is arranged in the inner sheath (2) between the supporting ribs (4), the anti-bending structure (6) is arranged on the outer side of the inner sheath (2), an anti-bending sheath (601), a cavity (602), a first arc-shaped elastic piece (603) and a second arc-shaped elastic piece (604) are sequentially arranged in the inner side of the anti-bending structure (6), the outer side of the inner sheath (2) is provided with an anti-bending sheath (601), the anti-bending sheath (601) is adhered to the inner sheath (2) through a first adhesive layer (7), the inner side of the anti-bending sheath (601) is provided with a cavity (602), the inner wall (602) is provided with a second arc-shaped elastic piece (602) on one side of the cavity (602) and the other side of the cavity (602) is fixed with an equal distance, the second arc-shaped elastic piece (604) is contacted with the first arc-shaped elastic piece (603).

2. The multi-core drop combination cable of claim 1, wherein: the outer surface of the outer sheath (1) is coated with a wear-resistant layer (14).

3. The multi-core drop combination cable of claim 1, wherein: the outer walls of the outer jackets (1) are sleeved with equidistant armor rings (15).

4. The multi-core drop combination cable of claim 1, wherein: a shielding layer (9) is arranged on the inner wall of the inner sheath (2).

5. The multi-core drop combination cable of claim 1, wherein: the outside of anti structure (6) of buckling is provided with first fire-retardant layer (10), and first fire-retardant layer (10) glues glutinous structure (6) of buckling through second glues glutinous layer (8).

6. The multi-core drop combination cable of claim 5, wherein: the outer side of the first flame retardant layer (10) is provided with a second flame retardant layer (11), a glass fiber belt (12) is wound on the outer wall of the second flame retardant layer (11), and the glass fiber belt (12) is adhered to the outer sheath (1) through a third adhesive layer (13).

7. The multi-core drop combination cable of claim 6, wherein: the second flame-retardant layer (11) and the first flame-retardant layer (10) are respectively made of low-smoke halogen-free polyolefin materials and ceramic silicone rubber materials.