Distortion-resistant cable with compression-resistant structure

Abstract

The utility model discloses an anti-twist cable with a compression-resistant structure, which comprises an inner supporting layer, a plurality of groups of cable inner cores are fixedly mounted in the inner supporting layer, a tensile layer is mounted on the outer side of the inner supporting layer, a waterproof layer is mounted on the outer side of the tensile layer, a protective layer is mounted on the outer side of the waterproof layer, and a plurality of cable inner cores are fixedly mounted on the outer side of the protective layer. The inner supporting layer comprises a plurality of groups of S-shaped protective belts, and the plurality of groups of cable inner cores are respectively arranged at the inner sides of the S-shaped protective belts. Through the arrangement of the inner supporting layer, the plurality of groups of cable inner cores are respectively and independently arranged at the inner sides of the S-shaped protective belts, and by utilizing the special anti-distortion and anti-compression structures of the S-shaped protective belts, the cable is more stable in performance; meanwhile, the inner sheath and the pressure-resistant plate are arranged on the outer side of the S-shaped protective belt, so that the overall structural property of the inner supporting layer is improved, the stress area is increased through the pressure-resistant plate, the borne pressure is dispersed to the surface of the inner sheath, deformation of the cable caused by local stress is avoided, and the service life of the cable is prolonged. And the anti-twisting and anti-compression capabilities of the cable are further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field, concretely relates to a kind of anti-twist cable with compression structure. BACKGROUND

[0002] Anti-twist cable is used in occasions that need to withstand torsional vibration, such as bridges, tunnels, subways and other infrastructure projects. In these projects, the compression-resistant conduit can protect the cable from vibration, impact and corrosion and other adverse factors, ensuring the stable operation of the cable and reducing the cost of failure and maintenance.

[0003] The existing cable generally uses external protection to improve the compression resistance of the cable. However, the inner core of the cable is only supported by the outer protection, which causes the outer protection to deform and squeeze the inner core of the cable. Moreover, the inner core of the cable is directly in contact with each other, which causes the insulation layer between the inner core to be squeezed when bending and rotating, leading to damage to the insulation layer and short circuit, thereby reducing the service life of the cable.

[0004] According to the utility model discloses an anti-twist and compression-resistant cable for oil platform, which belongs to the technical field of cables. The anti-twist and compression-resistant cable for oil platform includes a stabilizing mechanism, a secondary cable, a fireproof mechanism, and a main cable. The stabilizing mechanism includes a main ring, which is in the shape of a cylinder. A rotating ring is embedded in the outer middle part of the main ring and connected through a bearing. Six rods are evenly fixed to the outer side of the rotating ring. Each rod has a secondary ring fixed to the end away from the rotating ring. Two adjacent secondary rings are connected by a rod. The two ends of the rod are fixed to the secondary rings. Each secondary ring has two tooth rings. The anti-twist and compression-resistant cable for oil platform has a frame structure inside the cable, making the cable more stable and having better compression resistance.

[0005] The anti-twist and compression-resistant cable for oil platform has a frame structure inside the cable, making the cable more stable and having better compression resistance. However, the internal frame structure is segmented on the cable, which has many installation structures and is not conducive to cost control. Therefore, we need to propose an anti-twist cable with compression structure. SUMMARY

[0006] The utility model discloses a purpose lies in providing a kind of anti-torsion cable with compression resistance structure, by the setting of inner support layer, several groups cable inner core are separately installed in the inside of S-type protective band, using the structure of anti-torsion and compression resistance of S-type protective band, avoid cable inner core to be directly subjected to external pressure and torsion, simultaneously using the inner sheath and compression plate of the outside setting of S-type protective band, improve the overall structural property of inner support layer, further improve the anti-torsion and compression resistance of cable, to solve the problem proposed in above background art.

[0007] To achieve the above object, the utility model provides the following technical scheme: an anti-torsion cable with compression resistance structure, including inner support layer, the inside fixed mounting of inner support layer has several groups cable inner core, the outside of inner support layer is installed with anti-pulling layer, the outside of anti-pulling layer is installed with waterproof layer, the outside of waterproof layer is installed with protective layer, and the inner support layer includes several groups S-type protective band, and several groups cable inner core are installed in the inside of S-type protective band, the outside of S-type protective band is fixedly sleeved with inner sheath, and the outside fixed mounting of inner sheath has compression resistance band, and the compression resistance band is continuous arc, and the outside of compression resistance band is fixedly sleeved with outer shield layer.

[0008] Preferably, the gap between the S-type protective band, inner sheath, compression resistance band, outer shield layer and cable inner core is filled with buffer material.

[0009] Preferably, the cable inner core includes a conductor, the outer side of the conductor is provided with an inner shield layer, and the outer side of the inner shield layer is sleeved with an inner insulation sleeve.

[0010] Preferably, the anti-pulling layer includes anti-pulling steel wires fixedly installed on the outside of the outer shield layer, and the anti-pulling steel wires are uniformly distributed in a circular shape.

[0011] Preferably, the outer side of the anti-pulling steel wires is sleeved with an armored metal belt, and the surface of the armored metal belt is provided with a rust-proof coating.

[0012] Preferably, the waterproof layer includes water-blocking belts fixedly wound on the outside of the armored metal belt, and the outer side of the water-blocking belts is sleeved with a waterproof isolation sleeve.

[0013] Preferably, the protective layer includes an outer insulation sleeve fixedly sleeved on the outside of the waterproof isolation sleeve, and the outer side of the outer insulation sleeve is fixedly sleeved with an outer sheath.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The utility model discloses a setting of inner support layer, the inner side of S type guard band is installed to several groups cable inner core respectively, utilizes the special anti -twist and anti -pressure structure of S type guard band itself, avoids cable inner core and is directly subjected to external pressure and torsion, and the inner sheath and anti -pressure plate of S type guard band outside setting improve the overall structural property of inner support layer, and the stress area is increased by using anti -pressure plate, and the pressure received is dispersed to the surface of inner sheath, avoids the deformation of cable because of local stress, and further improve the anti -twist and anti -pressure ability of cable.

[0016] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is overall structure schematic diagram of the utility model;

[0018] Figure 2 It is cable section view structure schematic diagram of the utility model;

[0019] Figure 3 It is cable inner core structure schematic diagram of the utility model;

[0020] Figure 4 It is waterproof layer installation structure schematic diagram of the utility model.

[0021] In the drawing: 1, inner support layer;11, S type guard band;12, inner sheath;13, anti -pressure band;14, outer shield layer;2, cable inner core;21, conductor;22, inner shield layer;23, inner insulation sleeve;3, buffer material;4, tensile layer;41, tensile steel wire;42, armoring metal belt;5, waterproof layer;51, water blocking belt;52, waterproof isolation sleeve;6, protective layer;61, outer insulation sleeve;62, outer sheath. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-4The utility model provides a kind of anti-torsion cable with compression resistance structure, including inner support layer 1, the inside fixed mounting of inner support layer 1 has several groups of cable inner core 2, the outside of inner support layer 1 is installed with tensile layer 4, the outside of tensile layer 4 is installed with waterproof layer 5, the outside of waterproof layer 5 is installed with protective layer 6, the compression resistance and the ability of anti-torsion of cable are improved by inner support layer 1, cooperate the setting of tensile layer 4, waterproof layer 5, protective layer 6, realize the effect of tensile, waterproof, anti-abrasion of cable in turn;

[0024] Inner support layer 1 includes several groups of S-shaped protective band 11, several groups of cable inner core 2 are respectively installed on the inside of S-shaped protective band 11, the outside of S-shaped protective band 11 is fixedly sleeved with inner sheath 12, the outside of inner sheath 12 is fixedly installed with compression resistance band 13, compression resistance band 13 is continuous arc, and the outside of compression resistance band 13 is fixedly sleeved with outer shielding layer 14, by the setting of S-shaped protective band 11 and compression resistance band 13, avoid the direct stress and local stress of cable inner core 2, improve the compression resistance and the effect of anti-torsion of cable.

[0025] The gap between S-shaped protective band 11, inner sheath 12, compression resistance band 13, outer shielding layer 14 and cable inner core 2 is filled with buffer material 3, by the setting of buffer material 3, cable inner core 2 is fixed in the inside of inner support layer 1, the stability of cable inner core 2 installation is improved, and buffer material 3 can reduce the external force received by cable.

[0026] Cable inner core 2 includes conductor 21, the outside of conductor 21 is provided with inner shielding layer 22, the magnetic field generated by cable inner core 2 can be reduced by inner shielding layer 22, to avoid interference to surrounding elements, the outside of inner shielding layer 22 is sleeved with inner insulation sleeve 23, by the setting of inner insulation sleeve 23, the short circuit condition between lines is avoided.

[0027] Tensile layer 4 includes tensile steel wire 41 fixedly installed on the outside of outer shielding layer 14, tensile steel wire 41 is uniformly distributed in circular shape, the tensile resistance of tensile steel wire 41 is utilized to reduce the deformation and fracture condition of cable caused by tension.

[0028] The outside of tensile steel wire 41 is sleeved with armored metal band 42, the surface of armored metal band 42 is provided with rust-proof coating, the tensile and compression resistance of cable is further improved by armored metal band 42.

[0029] Waterproof layer 5 includes water-blocking band 51 fixedly wound on the outside of armored metal band 42, waterproof isolation sleeve 52 is sleeved on the outside of water-blocking band 51, the waterproof effect of cable is improved by the setting of water-blocking band 51 and waterproof isolation sleeve 52.

[0030] The protective layer 6 comprises an outer insulation sleeve 61 fixedly sleeved outside the waterproof isolation sleeve 52, the safety performance of the cable is further improved through the arrangement of the outer insulation sleeve 61, and an outer protective sleeve 62 is fixedly sleeved outside the outer insulation sleeve 61, the wear resistance of the cable is improved through the arrangement of the protective sleeve 62.

[0031] In specific use, the cable inner core 2 is placed in the inner support layer 1, the cable inner core 2 is independently installed by the S-shaped protective belt 11, the extrusion between the cable inner cores 2 is reduced, the safety of electricity use is improved, the elasticity of the structure of the S-shaped protective belt 11 can offset the pressure and torsion force from the outside, the compression resistance and torsion resistance of the cable are improved, the force from the outside is evenly distributed on the main structure of the inner support layer 1 through the arrangement of the compression-resistant belt 13, the local force of the cable is avoided to be too large, and the compression resistance and torsion resistance of the cable are further improved.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A kink-resistant electrical cable having a crush-resistant structure, characterized by: The utility model provides an improved cable structure, which comprises an inner support layer (1), a plurality of groups of cable inner cores (2) are fixedly installed inside the inner support layer (1), a tensile layer (4) is installed on the outer side of the inner support layer (1), a waterproof layer (5) is installed on the outer side of the tensile layer (4), and a protective layer (6) is installed on the outer side of the waterproof layer (5). The inner support layer (1) comprises a plurality of groups of S-shaped protective bands (11), the plurality of groups of cable inner cores (2) are respectively installed on the inner side of the S-shaped protective bands (11), an inner sheath (12) is fixedly sleeved on the outer side of the S-shaped protective bands (11), a compression-resistant band (13) is fixedly installed on the outer side of the inner sheath (12), the compression-resistant band (13) is in a continuous arc shape, and an outer shielding layer (14) is fixedly sleeved on the outer side of the compression-resistant band (13).

2. A kink-resistant electrical cable having a crush-resistant construction according to claim 1, wherein: The gaps between the S-shaped protective bands (11), the inner sheath (12), the compression-resistant band (13), the outer shielding layer (14) and the cable inner cores (2) are filled with buffer materials (3).

3. A kink-resistant electrical cable having a crush-resistant construction according to claim 1, wherein: The cable inner core (2) comprises a conductor (21), an inner shielding layer (22) is arranged on the outer side of the conductor (21), and an inner insulation sleeve (23) is sleeved on the outer side of the inner shielding layer (22).

4. A kink-resistant electrical cable having a crush-resistant construction according to claim 1, wherein: The tensile layer (4) comprises tensile steel wires (41) fixedly installed on the outer side of the outer shielding layer (14), and the tensile steel wires (41) are uniformly distributed in a circular shape.

5. A kink-resistant electrical cable having a crush-resistant construction according to claim 4, wherein: The outer side of the tensile steel wires (41) is sleeved with armored metal bands (42), and the armored metal bands (42) are provided with rust-proof coating on the surfaces.

6. A kink-resistant electrical cable having a crush-resistant construction according to claim 5, wherein: The waterproof layer (5) comprises water-blocking bands (51) fixedly wound on the outer side of the armored metal bands (42), and the water-blocking bands (51) are sleeved with waterproof isolation sleeves (52) on the outer sides.

7. A kink-resistant electrical cable having a crush-resistant construction according to claim 6, wherein: The protective layer (6) comprises an outer insulation sleeve (61) fixedly sleeved on the outer side of the waterproof isolation sleeve (52), and the outer insulation sleeve (61) is fixedly sleeved with an outer sheath (62) on the outer side.

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