CN216927191U - FRP cable strength core - Google Patents

Abstract

The utility model discloses a reinforcing core of an FRP optical cable, comprising a solidified layer, a central axis of the solidified layer is provided with a reinforcing frame, an outer end of the reinforcing frame is provided with an auxiliary reinforcing ring, and the outer peripheral surface of the auxiliary reinforcing ring is connected with the inner surface of the solidified layer. A second filler is arranged between the peripheral surfaces, and a first filler is arranged between the inner peripheral surface of the auxiliary reinforcing ring and the outer peripheral surface of the reinforcing frame, the central axis of the reinforcing frame is fixed with a first reinforcing strip, and the auxiliary reinforcement The surface of the ring is equidistantly penetrated by a second reinforcing strip; the fiber optic cable strength core not only increases its own compressive and tensile properties, but also increases its bending resistance, greatly improving the service life of the fiber optic cable strength core .

Description

FRP cable strength core

technical field

The utility model relates to the field of optical cable strengthening cores, in particular to the strengthening cores of FRP optical cables.

Background technique

FRP optical cable strengthening core (glass fiber) is a new type of high-performance engineering composite material prepared by pultrusion molding process after mixing resin as matrix material and glass fiber as reinforcing material. FRP optical cable strengthening core is optical cable / optical cable The important components of the fiber optic cable are generally placed in the center of the optical fiber cable/cable, and its function is to support the optical fiber unit or optical fiber bundle, and improve the tensile strength of the optical fiber cable. Traditional optical cables use metal reinforcements. FRP non-metallic reinforcements are more and more used in various optical cables due to their advantages of light weight, high strength and corrosion resistance.

In the prior art, although the FRP optical cable reinforcement core has the advantages of light weight, high strength and corrosion resistance, the compressive and tensile properties of the reinforcement core are weak, resulting in a short service life. For this reason, we provide FRP optical cable reinforcement. core.

Utility model content

In order to overcome the deficiencies of the prior art, the present invention provides an FRP optical cable strengthening core to solve the problems raised in the above-mentioned background art.

In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: the FRP optical cable reinforced core includes a solidified layer, the central axis of the solidified layer is provided with a reinforcing skeleton, the outer end of the reinforcing skeleton is provided with an auxiliary reinforcing ring, the A second filler is arranged between the outer peripheral surface of the auxiliary reinforcement ring and the inner peripheral surface of the solidified layer, and a first filler is arranged between the inner peripheral surface of the auxiliary reinforcement ring and the outer peripheral surface of the reinforcement frame, and the central axis of the reinforcement frame is fixed through There is a first reinforcing strip, and the surface of the auxiliary reinforcing ring is provided with a second reinforcing strip equidistantly along the annular shape.

As a preferred technical solution of the present invention, the material of the first filler is ethylene-propylene rubber, and the material of the second filler is calcium carbonate powder.

As a preferred technical solution of the present invention, the reinforcing skeleton includes a circular body provided integrally and an arc-shaped body whose peripheral surfaces are equidistantly provided.

As a preferred technical solution of the present invention, two ends of the auxiliary reinforcing ring are provided with integral arc-shaped protrusions at equal distances, and the arc-shaped protrusions are located at both ends of the second reinforcing strip.

As a preferred technical solution of the present invention, an annular metal woven mesh is embedded inside the solidified layer.

As a preferred technical solution of the present invention, two opposite arc-shaped protrusions form an annular shape, and the second reinforcing strip is located at the central axis of the annular shape.

Compared with the prior art, the beneficial effects that the utility model can achieve are:

1. The reinforcing skeleton cooperates with the first reinforcing bar set in the middle and the second reinforcing bar equidistantly arranged on the surface of the auxiliary reinforcing ring, which greatly increases the compressive performance of the fiber optic cable reinforcing core. The first filler material is ethylene propylene rubber, and the second filler material is calcium carbonate powder. On the one hand, it plays the role of filling and reinforcement, and on the other hand, it improves the anti-extrusion ability, tensile strength and bending strength of the fiber optic cable reinforcement core, and makes the The fiber optic cable strength core has the function of fire prevention, which improves the comprehensive performance of the fiber optic cable strength core, thereby improving the service life of the fiber optic cable strength core;

2. The special-shaped reinforced skeleton composed of a circular body and an arc-shaped body has a deformation cavity on the outer surface of the reinforced skeleton, which increases the contact area between the reinforced skeleton and the first filler, and disperses the extrusion force on the optical cable, thereby increasing the strength of the reinforced skeleton. The strength against extrusion and bending further increases the overall performance of the reinforcing core.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the position diagram of the utility model metal woven mesh;

Among them: 1. Cured layer; 2. Metal woven mesh; 3. Reinforcing frame; 4. First reinforcing strip; 5. Auxiliary reinforcing ring; 6. Arc-shaped protrusion; 7. Second reinforcing strip; 9. The second filler.

Detailed ways

In order to make the technical means, creative features, goals and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present utility model, not all . Based on the examples in the implementation manner, other examples obtained by those skilled in the art without creative work are all within the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following examples can be obtained from commercial sources unless otherwise specified.

Example:

As shown in FIG. 1 , the present invention provides an FRP optical cable reinforced core, including a solidified layer 1, the solidified layer 1 is a resin solidified layer, the central axis of the solidified layer 1 is provided with a reinforcing frame 3, and the outer end of the reinforcing frame 3 is provided with auxiliary reinforcement Ring 5, a second filler 9 is arranged between the outer peripheral surface of the auxiliary reinforcement ring 5 and the inner peripheral surface of the cured layer 1, and a first filler 8 is arranged between the inner peripheral surface of the auxiliary reinforcement ring 5 and the outer peripheral surface of the reinforcement frame 3, The central axis of the reinforcement frame 3 is fixed with a first reinforcement strip 4, and the surface of the auxiliary reinforcement ring 5 is penetrated by a second reinforcement strip 7 at an equal distance along the ring. The first filler 8 is made of ethylene-propylene rubber, and the second filler 9 is made of It is calcium carbonate powder;

The reinforcement frame 3 cooperates with the first reinforcement strip 4 arranged in the middle and the second reinforcement strip 7 arranged equidistantly on the surface of the auxiliary reinforcement ring 5, which greatly increases the compressive performance of the optical cable reinforcement core. At the same time, the material of the first filler 8 is set to ethylene propylene. Rubber and ethylene-propylene rubber have high elasticity, electrical insulation and chemical resistance. When the fiber optic cable strength core is extruded by external force, it can relieve part of the stress and improve the anti-extrusion ability of the fiber optic cable strength core. The second filler material is 9 It is set as calcium carbonate powder. On the one hand, the setting of calcium carbonate powder plays the role of filling and strengthening, improving the tensile strength and bending strength of the reinforcing core, and on the other hand, it also makes the optical cable reinforcing core have a fireproof function and improves the comprehensive performance of the optical cable reinforcing core. performance, thereby improving the service life of the strength core of the optical cable.

As shown in FIG. 1 , the present embodiment discloses that the reinforcing frame 3 includes an integrally arranged circular body and an arc-shaped body whose peripheral surfaces are equidistantly arranged;

The special-shaped reinforcing skeleton 3 composed of a circular body and an arc-shaped body has a deformation cavity on the outer surface of the reinforcing skeleton 3, which increases the contact area between the reinforcing skeleton 3 and the first filler 8, and disperses the extrusion force on the optical cable, thereby increasing the reinforcement The anti-extrusion and anti-bending strength of the skeleton 3 further increases the comprehensive performance of the reinforcing core.

As shown in FIG. 1 , the present embodiment discloses that the two ends of the auxiliary reinforcing ring 5 are provided with integral arc-shaped protrusions 6 at equal distances, and the arc-shaped protrusions 6 are located at both ends of the second reinforcing bar 7 . The two The opposite arc-shaped protrusions 6 form an annular shape, and the second reinforcing strip 7 is located at the central axis of the annular shape;

Through the arc-shaped protrusions 6 symmetrically arranged along the ring, the contact area of the auxiliary reinforcement ring 5 with the first packing 8 and the second packing 9 at both ends is increased, the stability of the auxiliary reinforcement ring 5 is increased, and the auxiliary reinforcement ring is further increased. 5's own strength.

As shown in FIG. 1 and FIG. 2 , this embodiment discloses that an annular metal woven mesh 2 is embedded in the cured layer 1 ;

Through the metal woven mesh 2 embedded in the solidified layer 1, the compression resistance and tensile resistance of the solidified layer 1 are increased, and at the same time, the interior of the solidified layer 1 plays a protective role.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The reinforcing core of an FRP optical cable, comprising a solidified layer (1), characterized in that: the central axis of the solidified layer (1) is provided with a reinforcing skeleton (3), and the outer end of the reinforcing skeleton (3) is provided with an auxiliary reinforcement Ring (5), a second filler (9) is arranged between the outer peripheral surface of the auxiliary reinforcement ring (5) and the inner peripheral surface of the cured layer (1), and the inner peripheral surface of the auxiliary reinforcement ring (5) and the reinforcement frame ( 3) A first filler (8) is arranged between the outer peripheral surfaces of the reinforcing skeleton (3), a first reinforcing strip (4) is fixed through the central axis of the reinforcing skeleton (3), and the surfaces of the auxiliary reinforcing ring (5) are equidistant along the ring. A second reinforcing strip (7) runs through. 2 . The FRP optical cable strength core according to claim 1 , wherein the material of the first filler ( 8 ) is ethylene-propylene rubber, and the material of the second filler ( 9 ) is calcium carbonate powder. 3 . 3 . The FRP optical cable strength core according to claim 1 , wherein the reinforcing skeleton ( 3 ) comprises an integrally arranged circular body and an arc-shaped body whose peripheral surfaces are equidistantly arranged. 4 . 4. The FRP optical cable strengthening core according to claim 1, characterized in that: both ends of the auxiliary reinforcing ring (5) are provided with integral arc-shaped protrusions (6) at equal distances, and the arc-shaped protrusions ( 6) at both ends of the second reinforcing strip (7). 5. The FRP optical cable strength core according to claim 1, characterized in that: an annular metal braided mesh (2) is embedded in the interior of the solidified layer (1). 6 . The FRP optical cable strength core according to claim 4 , wherein the two opposite arc-shaped protrusions ( 6 ) form an annular shape, and the second reinforcing strip ( 7 ) is located at the central axis of the annular shape. 7 .

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