CN211578428U

CN211578428U - Anti-torsion cable

Info

Publication number: CN211578428U
Application number: CN202020421612.9U
Authority: CN
Inventors: 孙亮; 卢鹏程; 何宏亮; 肖剑鸣
Original assignee: Anhui Huadian Wire & Cable Group Co ltd
Current assignee: Anhui Huadian Wire & Cable Group Co ltd
Priority date: 2020-03-28
Filing date: 2020-03-28
Publication date: 2020-09-25
Anticipated expiration: 2030-03-28

Abstract

The utility model discloses an anti-torsion cable, include by a plurality of first sinle silks, the cable core that a plurality of second sinle silks and earth connection core constitute, the cable core outside is provided with the inner sheath layer, the inner sheath layer outside is provided with the outer sheath layer, be provided with many first racks that are parallel to each other with cable core the central axis on the outer sheath layer inside wall, be provided with the first rack of being connected with first rack toothing on the inner sheath layer lateral wall, equidistant a plurality of first skewed teeth that are provided with on the first rack, equidistant a plurality of second skewed teeth that set up with first skewed tooth cooperation meshing that are provided with on the first rack, all be provided with the spout that is parallel to each other with the cable core the central axis between two adjacent first racks, the spout is seted up on the outer sheath layer inside wall, be provided with the slider with spout sliding connection on the inner sheath layer lateral wall. The utility model discloses can effectively prevent to warp, crooked and take place deformation under the effect that the cable received external tension to the life of cable has been improved.

Description

Anti-torsion cable

Technical Field

The utility model relates to the technical field of cables, especially indicate an anti-torque cable.

Background

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. The power transmission system is erected in the air or installed underground or underwater to transmit telecommunication or power by transmitting, distributing power or transmitting electric signals and the like.

At present cable in process of production, all need be in the same place the simple transposition of cable conductor line, sheathe the conductor line in the overcoat protection cable again, but the cable is in the use, and the line often receives to twist reverse, crooked and take place the deformation back easily, if can not in time resume will cause the damage to the cable is inside, has unrecoverable torsional force in the cable, can be because torsional force leads to the inside extrusion of cable serious to reduce the life of cable.

Disclosure of Invention

In view of the above, the present invention is directed to a torsion resistant cable, which is directed to solve all or one of the problems of the related art.

Based on the above purpose, the utility model provides a torsion resistant cable, which comprises a cable core composed of a plurality of first cable cores, a plurality of second cable cores and a grounding cable core, wherein a plurality of first cable cores are twisted, a plurality of second cable cores and grounding cable core are all twisted outside the first cable cores, the cable core is wrapped by a polyester belt, the polyester belt is provided with an inner sheath layer outside, the inner sheath layer outside is provided with an outer sheath layer, the inner side wall of the outer sheath layer is provided with a plurality of first racks parallel to the central axis of the cable core, the outer side wall of the inner sheath layer is provided with a first rack meshed and connected with the first racks, the first racks are provided with a plurality of first inclined teeth at equal intervals, the first racks are provided with a plurality of second inclined teeth matched and meshed with the first inclined teeth, a chute parallel to the central axis of the cable core is arranged between two adjacent first racks, the spout is seted up on the oversheath layer inside wall, be provided with on the inner sheath layer lateral wall with spout sliding connection's slider.

Optionally, the slider both sides all are connected with the elastic component, every the one end of elastic component with the spout lateral wall is connected, every the spout equidistant setting.

Optionally, the elastic member is a spring.

Optionally, each first core sequentially includes, from inside to outside, a second conductor, a second inner insulating layer, and a second outer insulating layer.

Optionally, the second conductor comprises a core twisted by a plurality of spun yarn bundles and a plurality of tin-plated soft copper conductors twisted around the core.

Optionally, each of the second cores includes, in order from inside to outside, a first conductor and a first insulating layer.

Optionally, a filling strip is arranged at the center of the cable core, and the filling strip is a semi-conductive filling strip.

Optionally, a wrapping layer is arranged between the polyester belt and the inner sheath layer,

optionally, anti-pulling strips parallel to the central axis of the cable core are arranged on two sides of each first rack.

Optionally, the inner sheath layer and the outer sheath layer are both made of polyurethane elastomer materials.

From the above, the utility model discloses beneficial effect is:

1. the utility model discloses be provided with first skewed tooth, second skewed tooth, spout and slider, at the cable in the use, intermeshing between first skewed tooth and the second skewed tooth is connected and can effectively prevent to warp under the effect that receives external tension at the cable, crooked and take place deformation, the spout further restricts the cable with setting up of slider and warp under the effect that receives external tension, crooked and take place deformation, can effectively reduce the torsional strength that exists in the cable to the life of cable has been improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a torsion resistant cable according to the present invention;

fig. 2 is a schematic structural diagram of the connection between the sliding groove and the sliding block according to an embodiment of the present invention.

In the figure: the cable comprises a first cable core 1, a second cable core 2, a grounding wire core 3, a first conductor 4, a first insulating layer 5, a second conductor 6, a second inner insulating layer 7, a second outer insulating layer 8, a filling strip 9, a polyester tape 10, a wrapping layer 11, an inner sheath layer 12, an outer sheath layer 13, a tension resisting strip 14, a first helical tooth 15, a second helical tooth 16, a sliding groove 18, a sliding block 19 and a spring 20.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe any more.

A torsion-resistant cable comprises a cable core composed of a plurality of first cable cores 1, a plurality of second cable cores 2 and a grounding cable core 3, wherein the first cable cores 1 are twisted, the second cable cores 2 and the grounding cable core 3 are twisted outside the first cable cores 1, a polyester belt 10 wraps the cable core, an inner sheath layer 12 is arranged outside the polyester belt 10, an outer sheath layer 13 is arranged outside the inner sheath layer 12, a plurality of first racks parallel to the central axis of the cable core are arranged on the inner side wall of the outer sheath layer 13, a first rack meshed and connected with the first racks is arranged on the outer side wall of the inner sheath layer 12, a plurality of first inclined teeth 15 are arranged on the first racks at equal intervals, a plurality of second inclined teeth 16 matched and meshed with the first inclined teeth 15 are arranged on the first racks at equal intervals, adjacent two all be provided with between the first rack with cable core the central axis is parallel to each other's spout 18, spout 18 sets up on the 13 inside walls of oversheath layer, be provided with on the 12 lateral walls of oversheath layer with 18 sliding connection's of spout slider 19, in the cable in the use, intermeshing between first skewed tooth 15 and the second skewed tooth 16 is connected and can effectively prevent to receive distortion, bending and take place deformation under the effect of external pulling force at the cable, and the further restriction cable that sets up of spout 18 and slider 19 receives distortion, bending and take place deformation under the effect of external pulling force, can effectively reduce the torsional strength that exists in the cable to the life of cable has been improved.

In order to further reduce the torsional force existing in the cable through variation, elastic pieces are connected to two sides of the sliding block 19, one end of each elastic piece is connected with the side wall of the sliding groove 18, the sliding grooves 18 are arranged at equal intervals, and the elastic pieces are springs 20, so that the service life of the cable is prolonged.

Each first wire core 1 sequentially comprises a second conductor 6, a second inner insulating layer 7 and a second outer insulating layer 8 from inside to outside, the second conductor 6 comprises a cable core formed by twisting a plurality of strands of spun rayon yarn bundles and a plurality of strands of tin-plated soft copper conductors formed by twisting the cable core in a repeated mode, and the second inner insulating layer 7 and the second outer insulating layer 8 are made of ethylene propylene rubber, acetal resin, chloroprene rubber, polyvinyl chloride, styrene butadiene rubber, polyamide, melamine, polyethylene, polytetrafluoroethylene and the like.

Each second wire core 2 sequentially comprises a first conductor 4 and a first insulating layer 5 from inside to outside, and the first insulating layer 5 is made of ethylene propylene rubber, oil-impregnated paper, polyvinyl chloride, polyethylene, cross-linked polyethylene, rubber and the like.

And a filling strip 9 is arranged at the center of the cable core, and the filling strip is a semi-conductive filling strip.

A wrapping layer 11 is arranged between the polyester belt 10 and the inner sheath layer 12.

Every first rack both sides all be provided with the central axis of cable core is parallel to each other tensile strip 14, and tensile strip 14 adopts the bar that aramid fiber silk, dacron silk and carbon fiber silk weave according to the equal mass ratio.

The inner sheath layer and the outer sheath layer are made of polyurethane elastomer materials, and the polyurethane elastomer is excellent in wear resistance, high in hardness, high in strength, good in elasticity, low-temperature resistant, good in oil resistance, chemical resistance and environment resistance, and capable of reducing the weight of the cable.

The outer side of the inner sheath layer is also provided with a reed, so that damage of external pressure to the cable is reduced when the cable is pressurized in the periphery.

At the cable in the use, intermeshing between first skewed tooth 15 and the second skewed tooth 16 is connected and can effectively prevent to warp, crooked and take place deformation under the effect that the cable received external pulling force, and the setting up of spout 18 and slider 19 further limits the cable to warp, crooked and take place deformation under the effect that the external pulling force received, can effectively reduce the torsional strength that exists in the cable to the life of cable has been improved.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

In addition, well known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown in the provided figures for simplicity of illustration and discussion, and so as not to obscure the invention. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the invention, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the present invention is to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the invention, it should be apparent to one skilled in the art that the invention can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.

While the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic ram (dram)) may use the discussed embodiments.

The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The torsion-resistant cable is characterized by comprising a cable core consisting of a plurality of first cable cores (1), a plurality of second cable cores (2) and a grounding cable core (3), wherein the first cable cores (1) are twisted and arranged in a plurality of ways, the second cable cores (2) and the grounding cable core (3) are twisted and arranged on the outer side of the first cable cores (1), a polyester belt (10) is wrapped on the outer side of the cable core, an inner sheath layer (12) is arranged on the outer side of the polyester belt (10), an outer sheath layer (13) is arranged on the outer side of the inner sheath layer (12), a plurality of first racks parallel to the central axis of the cable core are arranged on the inner side wall of the outer sheath layer (13), a first rack connected with the first racks in a meshed manner is arranged on the outer side wall of the inner sheath layer (12), a plurality of first inclined teeth (15) are arranged on the first racks at equal intervals, the cable core is characterized in that a plurality of second skewed teeth (16) which are matched and meshed with the first skewed teeth (15) are arranged on the first racks at equal intervals, two adjacent second skewed teeth (16) are arranged between the first racks, parallel sliding grooves (18) are formed in the central axis of the cable core, the sliding grooves (18) are formed in the inner side wall of the outer sheath layer (13), and sliding blocks (19) which are connected with the sliding grooves (18) in a sliding mode are arranged on the outer side wall of the inner sheath layer (12).

2. A torsion resistant cable according to claim 1, wherein elastic members are connected to both sides of the sliding block (19), one end of each elastic member is connected to a side wall of the sliding slot (18), and each sliding slot (18) is arranged at equal intervals.

3. A torsion resistant cable according to claim 2, wherein the resilient member is a spring (20).

4. A torsion resistant cable according to claim 1, wherein each of said first cores (1) comprises, in order from the inside to the outside, a second conductor (6), a second inner insulating layer (7) and a second outer insulating layer (8).

5. A torsion resistant cable according to claim 4, wherein said second conductor (6) comprises a core twisted from a plurality of spun yarn bundles and a plurality of tinned soft copper conductors twisted around the core.

6. A torsion resistant cable according to claim 1, wherein each of said second cores (2) comprises, in order from the inside to the outside, a first conductor (4) and a first insulating layer (5).

7. The torsion-resistant cable according to claim 1, wherein a filler strip (9) is arranged at the center of the cable core, and the filler strip is a semi-conductive filler strip.

8. A torsion resistant cable according to claim 1, wherein a wrapping (11) is provided between the polyester tape (10) and the inner sheath layer (12).

9. A torsion resistant cable according to claim 1, wherein each of the first racks is provided with tension resistant strips (14) on both sides thereof in parallel with the central axis of the core.

10. A torsion resistant cable according to claim 1 wherein the inner and outer jacket layers are of polyurethane elastomer material.