CN213123884U

CN213123884U - Protective layer for preventing cable deformation

Info

Publication number: CN213123884U
Application number: CN202022457290.6U
Authority: CN
Inventors: 闫甲田; 刘宏亮; 孙荣德; 冯珍
Original assignee: Dangshan Hongqi Cable Co ltd
Current assignee: Dangshan Hongqi Cable Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-05-04
Anticipated expiration: 2030-10-28

Abstract

The utility model provides a protective layer for preventing cable deformation, which relates to the technical field of cables and comprises a cable inner layer and an outer protective layer, wherein the outer protective layer is arranged outside the cable inner layer; a reinforcing layer is arranged in the outer protective layer and comprises a plurality of reinforcing ribs parallel to the axis of the inner layer of the cable, and the reinforcing ribs are arranged at intervals around the inner layer of the cable; the cable inlayer is including setting up the elasticity core in cable inlayer axle center, follows the circumference interval of elasticity core is provided with a plurality of cable layers, is provided with between a plurality of cable layers to have elastic obturator, vacuole formation between obturator and the elasticity core. The cable solves the problem that the cable is easy to deform because the cable can be inevitably influenced by external force in the using process of the cable in the prior art.

Description

Protective layer for preventing cable deformation

Technical Field

The utility model relates to the technical field of cables, especially, relate to a prevent protective layer of cable deformation.

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 device is erected in the air or installed underground or underwater for telecommunication or power transmission. In the use of cable, can receive external force influence unavoidably, and take place the cable and warp, can produce the potential safety hazard when influencing cable normal use, need in time maintain the change to the cable.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a prevent protective layer that cable warp, in its use of having solved the cable that exists among the prior art, can receive external force influence unavoidably, lead to the problem that the cable warp easily.

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

a protective layer for preventing cable deformation comprises a cable inner layer and an outer protective layer, wherein the outer protective layer is arranged outside the cable inner layer;

a reinforcing layer is arranged in the outer protective layer and comprises a plurality of reinforcing ribs parallel to the axis of the inner layer of the cable, and the reinforcing ribs are arranged at intervals around the inner layer of the cable;

the cable inlayer is including setting up the elasticity core in cable inlayer axle center, follows the circumference interval of elasticity core is provided with a plurality of cable layers, is provided with between a plurality of cable layers to have elastic obturator, vacuole formation between obturator and the elasticity core.

Compared with the prior art, the utility model discloses following beneficial effect has:

intervals are arranged among the reinforcing ribs, so that the cable is easy to deform radially when being extruded by external force, and a buffering effect is formed; the strengthening rib is difficult by axial tension, can guarantee that the cable receives sufficient intensity occasionally of axial force, and then guarantees that the cable layer does not receive more axial force tractive and influence the electric conduction of self. The elastic core is extruded to deform, so that the cavity is filled, a certain deformation space is provided for the inside, and meanwhile, after the inner cavity is extruded to a certain degree, the elastic core is in contact with the cable layer and the filler for supporting, so that overlarge deformation is prevented; meanwhile, a certain elastic recovery effect is formed after the external force is eliminated.

Preferably, every group the strengthening rib includes first strengthening rib and second strengthening rib, and the both sides of first strengthening rib are provided with the recess along the circumference, and the both sides of second strengthening rib are provided with the arch along the circumference, protruding edge enhancement layer circumference sliding connection is in adjacent recess.

Preferably, the reinforcing rib is provided with a plurality of strip-shaped holes, and the length direction of the strip-shaped holes is parallel to the axis of the reinforcing layer.

Preferably, the elastic force of the elastic core is greater than the elastic force of the filling body.

Preferably, the cable layer comprises a conductor and an insulating layer disposed outside the conductor.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic cross-sectional view of an embodiment of the present invention.

Fig. 2 is a schematic view of a reinforcing rib structure according to an embodiment of the present invention.

In the above drawings: 1. an inner layer of the cable; 2. an outer jacket; 3. reinforcing ribs; 31. a first reinforcing rib; 32. a second reinforcing rib; 4. an elastic core; 5. a cable layer; 6. a filler; 7. a cavity; 8. a strip-shaped hole; 9. a wire; 10. an insulating layer.

Detailed Description

In order to make the technical means, creation features, achievement purposes and actions of the present invention clearer and easier to understand, the following technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1, a cable deformation-preventing protective layer comprises a cable inner layer 1 and an outer protective layer 2, wherein the outer protective layer 2 is arranged outside the cable inner layer 1; a reinforcing layer is arranged in the outer protective layer 2, the reinforcing layer comprises a plurality of reinforcing ribs 3 parallel to the axis of the cable inner layer 1, and the reinforcing ribs 3 are arranged at intervals around the cable inner layer 1; the cable inner layer 1 comprises an elastic core 4 arranged at the axis of the cable inner layer 1, a plurality of cable layers 5 are arranged at intervals on the circumference of the elastic core 4, an elastic filling body 6 is arranged between the cable layers 5, and a cavity 7 is formed between the filling body 6 and the elastic core 4. The outer protection layer 2 is arranged outside the cable inner layer 1 to protect the cable inner layer 1, when the cable is subjected to external extrusion force, the reinforcing layer is firstly extruded, the external extrusion force cannot directly act on the cable inner layer 1, and the cable layer 5 is prevented from being directly extruded and deformed; because the interval is arranged between the reinforcing ribs 3, the reinforcing ribs 3 move along the circumferential direction of the inner layer 1 of the cable under the external extrusion, the interval between the reinforcing ribs 3 is reduced, and the cable is easy to deform in the radial direction, thereby forming the buffer effect; meanwhile, the reinforcing ribs 3 are not easy to stretch axially, so that the cable can have enough strength when being subjected to axial force, and further the inner layer 1 of the cable is prevented from being pulled by more axial force to influence the self conductivity. The interval between the reinforcing ribs 3 is reduced, so that the space of the inner layer 1 of the cable is reduced, the cable layer 5 moves towards the elastic core 4, the elastic core 4 is extruded to generate elastic deformation, the cavity 7 is filled, a certain deformation space is provided for the interior, and meanwhile, after the inner cavity 7 is extruded to a certain degree, the elastic core 4 is in contact with the cable layer 5 and the filler 6 for supporting, so that overlarge deformation is prevented; when the external extrusion force disappears, the original state is restored due to the action of the elastic force in the opposite direction.

Preferably, the elastic force of the elastic core 4 is greater than the elastic force of the filling body 6. The elastic core 4 is made of a material with better elasticity and recovery performance so as to make corresponding deformation according to different extrusion parts. In actual arrangement, the filler 6 is made of conventional cable materials, and the elastic core 4 is relatively good in elasticity.

As shown in fig. 1, each group of the reinforcing ribs 3 includes a first reinforcing rib 31 and a second reinforcing rib 32, grooves are formed on both sides of the first reinforcing rib 31 along the circumference, protrusions are formed on both sides of the second reinforcing rib 32 along the circumference, and the protrusions are slidably connected in the adjacent grooves along the circumferential direction of the reinforcing layer. When an external pressing force is applied, the protrusions of the side surfaces of the second reinforcing beads 32 move into the grooves of the adjacent first reinforcing beads 31. As shown in fig. 2, the reinforcing rib 3 is provided with a plurality of strip-shaped holes 8, and the length direction of the strip-shaped holes 8 is parallel to the axis of the reinforcing layer. When the reinforcing ribs 3 are extruded, the reinforcing ribs themselves deform in the radial direction of the cable, so that the movable distance between the reinforcing ribs 3 after extrusion is maximized. The cooperation of recess and bellied to and set up bar hole 8 at strengthening rib 3 itself and make strengthening rib 3 when receiving external force extrusion, radial deformation reaches the biggest. The reinforcing ribs 3 can be made of metal with good toughness and strength; non-metallic materials may also be used to avoid electromagnetic effects caused by excessive current, such as SPEC plastic, synthetic rubber, etc.

As shown in fig. 1, the cable layer 5 includes a conductive wire 9 and an insulating layer 10 disposed outside the conductive wire 9. The insulation layer 10 insulates the wires 9 from the surrounding environment or from adjacent wires 9, and there is no concern about the insulation performance.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A cable deformation resistant protective layer, comprising: the cable comprises a cable inner layer (1) and an outer protective layer (2), wherein the outer protective layer (2) is arranged outside the cable inner layer (1);

a reinforcing layer is arranged in the outer protective layer (2), the reinforcing layer comprises a plurality of reinforcing ribs (3) parallel to the axis of the cable inner layer (1), and the reinforcing ribs (3) are arranged at intervals around the cable inner layer (1);

the cable inner layer (1) comprises an elastic core (4) arranged on the axis of the cable inner layer (1), a plurality of cable layers (5) are arranged at intervals on the circumference of the elastic core (4), an elastic filling body (6) is arranged between the cable layers (5), and a cavity (7) is formed between the filling body (6) and the elastic core (4).

2. The cable deformation resistant protective layer of claim 1, wherein: every group strengthening rib (3) include first strengthening rib (31) and second strengthening rib (32), and the both sides of first strengthening rib (31) are provided with the recess along the circumference, and the both sides of second strengthening rib (32) are provided with the arch along the circumference, protruding enhancement layer circumference sliding connection is followed in adjacent recess.

3. A cable deformation resistant protective layer as claimed in claim 2, wherein: a plurality of strip-shaped holes (8) are formed in the reinforcing ribs (3), and the length directions of the strip-shaped holes (8) are parallel to the axis of the reinforcing layer.

4. The cable deformation resistant protective layer of claim 1, wherein: the elastic force of the elastic core (4) is larger than that of the filling body (6).

5. The cable deformation resistant protective layer of claim 1, wherein: the cable layer (5) comprises a conducting wire (9) and an insulating layer (10) arranged outside the conducting wire (9).