CN209822336U

CN209822336U - Slow-compression tensile cable based on aramid filaments

Info

Publication number: CN209822336U
Application number: CN201920625958.8U
Authority: CN
Inventors: 周晓秋; 戴玲佩; 郑光磊; 戴兴华
Original assignee: Shanghai Jiaze Cable Group Co Ltd
Current assignee: Shanghai Jiaze Cable Group Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2019-12-20
Anticipated expiration: 2029-04-30

Abstract

The utility model provides a slowly press tensile cable based on aramid fiber silk, include: the cable comprises a cable layer, wherein a slow-pressing layer, a tensile reinforced layer and a protective layer are sequentially arranged on the outer side of the cable layer; the pressure-relieving layer comprises a primary elastic component, a sheet hinge mechanism and a secondary elastic component which are sequentially arranged from inside to outside; two ends of the secondary elastic component are connected with the tensile reinforced layer and the outer side of the four-bar hinge mechanism; the sheet hinge mechanism is sleeved on the cable layer; elastic substances are filled between the sheet hinge mechanism and the tensile reinforced layer; the two ends of the first-level elastic component are respectively connected with the inner side of the sheet hinge mechanism and the cable layer. The utility model has the advantages that: when the tensile reinforced layer is extruded, the secondary elastic part, the elastic substance, the sheet hinge mechanism and the primary elastic part are linked to relieve the external pressure; the aramid fiber yarns are arranged in the tensile reinforced layer, so that the overall tensile strength of the cable is improved.

Description

Slow-compression tensile cable based on aramid filaments

Technical Field

The utility model belongs to the technical field of the cable, especially, relate to a slow-pressing tensile cable based on aramid fiber silk.

Background

The cable may be classified into a power cable, a communication cable, a control cable, and the like according to its use. Compared with an overhead line, the cable has the advantages of small insulating distance between lines, small occupied space, no occupation of space above the ground due to underground laying, no influence of pollution of the surrounding environment, high power transmission reliability, and small interference on personal safety and the surrounding environment.

Because the number of cables arranged underground is large and dense, the cables are easy to extrude each other when being arranged or the wires are pulled, so that the cables are extruded and deformed, and the use and the safety are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a slowly press tensile cable based on aramid fiber silk to solve among the prior art problem that cable extrusion deformation and tensile strength are low. In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a slow compression tensile cable based on aramid fiber silk, includes: the cable comprises a cable layer, wherein a slow-pressing layer, a tensile reinforced layer and a protective layer are sequentially arranged on the outer side of the cable layer;

the pressure relieving layer comprises a primary elastic part, a sheet hinge mechanism and a secondary elastic part which are sequentially arranged from inside to outside;

two ends of the secondary elastic component are connected with the tensile reinforced layer and the outer side of the four-bar hinge mechanism;

the sheet hinge mechanism is sleeved on the cable layer; elastic substances are filled between the sheet hinge mechanism and the tensile reinforced layer;

and two ends of the primary elastic component are respectively connected with the inner side of the sheet hinge mechanism and the cable layer.

Preferably, the sheet hinge mechanism comprises a first sheet, a second sheet, a third sheet and a fourth sheet which are sequentially connected end to end; the first sheet and the second sheet are respectively connected with the primary elastic component; the outer sides of the first thin sheet, the second thin sheet, the third thin sheet and the fourth thin sheet are all connected with the secondary elastic component.

Preferably, the width of the first sheet is greater than the width of the second and fourth sheets; the first sheet and the second sheet are symmetrically arranged.

Preferably, tensile reinforcement wires are arranged inside the side wall of the tensile reinforcement layer; the tensile reinforcement wire is aramid fiber wire.

Preferably, the cable layer comprises a tape layer and a plurality of insulated wire cores arranged in the tape layer; the insulated wire core comprises a conductor; a conductor wrapping layer is wrapped outside the conductor; and the outer part of the conductor wrapping layer is extruded with a wear-resistant layer.

Preferably, the primary elastic member and the secondary elastic member are both springs.

Compared with the prior art, the utility model has the advantages that:

1) when the side wall of the cable is extruded, the protective layer is extruded from the outside, the protective layer has certain elasticity and can buffer certain pressure, the pressure is increased, the protective layer transmits the pressure to the internal tensile reinforced layer, when the tensile reinforced layer is extruded from the inside, the secondary elastic component is compressed, and the secondary elastic component and the elastic substance buffer most of the pressure from the tensile reinforced layer; the sheet hinge mechanism is pressed to retract, so that residual pressure from the tensile reinforcement layer is buffered, and the first-stage elastic component can prevent the cable layer from being pressed by the sheet hinge mechanism.

2) The aramid fiber yarn has high tensile strength, so that the overall strength of the cable is greatly improved.

Drawings

Fig. 1 is the utility model discloses a sectional view of slowly-pressing tensile cable based on aramid fiber silk.

1-primary elastic component, 2-sheet hinge mechanism, 21-first sheet, 22-second sheet, 3-secondary elastic component, 4-tensile reinforced layer and 5-protective layer.

Detailed Description

The invention will be described in greater detail below with reference to the schematic drawings, in which preferred embodiments of the invention are shown, it being understood that a person skilled in the art may modify the invention described herein, while still achieving the advantageous effects of the invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.

As shown in fig. 1, a slowly-compressed tensile cable based on aramid fiber silk includes: the cable comprises a cable layer, wherein a slow-pressing layer, a tensile reinforced layer 4 and a protective layer 5 are sequentially arranged on the outer side of the cable layer; the pressure-relieving layer comprises a primary elastic component 1, a sheet hinge mechanism 2 and a secondary elastic component 3 which are arranged from inside to outside in sequence; when the tensile reinforced layer 4 is extruded, the secondary elastic part 3, the elastic substance, the sheet hinge mechanism 2 and the primary elastic part 1 are linked; two ends of the secondary elastic component 3 are connected with the tensile reinforced layer 4 and the outer side of the four-bar hinge mechanism; the sheet hinge mechanism 2 is sleeved on the cable layer; elastic substances are filled between the sheet hinge mechanism 2 and the tensile reinforced layer 4; when the sheet hinge mechanism 2 is in a retraction trend, the elastic substance is used for fixing the sheet hinge mechanism 2 in real time in cooperation with the disturbance of the sheet hinge mechanism 2; two ends of the primary elastic component 1 are respectively connected with the inner side of the sheet hinge mechanism 2 and the cable layer. Wherein, the first-stage elastic component 1 and the second-stage elastic component 3 are both springs.

In the present embodiment, the sheet hinge mechanism 2 includes a first sheet 21, a second sheet 22, a third sheet, and a fourth sheet connected end to end in this order; the first sheet 21 and the second sheet 22 are respectively connected with the primary elastic member 1; the outer sides of the first sheet 21, the second sheet 22, the third sheet and the fourth sheet are connected with the secondary elastic members 3.

In the present embodiment, the width of the first sheet 21 is larger than the widths of the second sheet 22 and the fourth sheet; the first sheet 21 and the second sheet 22 are symmetrically disposed.

In the embodiment, the tensile reinforcement layer 4 is provided with tensile reinforcement wires inside the side wall; the tensile reinforcement wire is aramid fiber wire and has high tensile strength.

In the embodiment, the cable layer comprises a belting layer and a plurality of insulated wire cores arranged in the belting layer; the insulated wire core comprises a conductor; a conductor lapping layer is lapped outside the conductor; the conductor is extruded and wrapped with a wear-resistant layer outside the wrapping layer.

In summary, in the embodiment of the present invention, when the cable sidewall is extruded, the protective layer 5 receives external extrusion force, the protective layer 5 has certain elasticity, and can buffer certain pressure, the pressure is increased, the protective layer 5 transmits pressure to the internal tensile reinforcement layer 4, when the tensile reinforcement layer 4 is extruded, the secondary elastic component 3 is compressed, and the secondary elastic component 3 and the elastic substance buffer most of the pressure from the tensile reinforcement layer 4; the sheet hinge mechanism 2 is pressed to be retracted at this time, thereby buffering the residual pressure from the tensile reinforcement layer 4, and the primary elastic member 1 prevents the cable layer from being pressed by the sheet hinge mechanism 2. Furthermore, aramid fiber silk tensile strength is high for the bulk strength of cable obtains big promotion.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims

1. The utility model provides a slow pressure tensile cable based on aramid fiber silk which characterized in that includes: the cable comprises a cable layer, wherein a slow-pressing layer, a tensile reinforced layer and a protective layer are sequentially arranged on the outer side of the cable layer;

2. The aramid yarn-based slow-compression tensile cable according to claim 1, wherein the sheet hinge mechanism comprises a first sheet, a second sheet, a third sheet and a fourth sheet which are sequentially connected end to end; the first sheet and the second sheet are respectively connected with the primary elastic component; the outer sides of the first thin sheet, the second thin sheet, the third thin sheet and the fourth thin sheet are all connected with the secondary elastic component.

3. The aramid yarn-based slow-compression tensile cable of claim 2, wherein the width of the first sheet is greater than the widths of the second sheet and the fourth sheet; the first sheet and the second sheet are symmetrically arranged.

4. The aramid fiber yarn-based slow-compression tensile cable according to claim 1, wherein a tensile reinforcing yarn is arranged inside a side wall of the tensile reinforcing layer; the tensile reinforcement wire is aramid fiber wire.

5. The aramid yarn-based slow-compression tensile cable of claim 1, wherein the cable layer comprises a tape layer and a plurality of insulated cores disposed in the tape layer; the insulated wire core comprises a conductor; a conductor wrapping layer is wrapped outside the conductor; and the outer part of the conductor wrapping layer is extruded with a wear-resistant layer.

6. The aramid yarn-based slow-compression tensile cable of claim 1, wherein the primary elastic part and the secondary elastic part are both springs.