Indoor reinforced photoelectric composite cable

Abstract

The utility model discloses an indoor reinforced photoelectric composite cable, which is characterized by comprising an optical fiber, conductors, an inner sheath, a reinforcing element and an outer sheath, the number of the conductors is two, the two conductors are symmetrically arranged at two sides of the optical fiber, the inner sheath is coated outside the optical fiber and the conductors, and the reinforcing element is coated outside the outer sheath. The reinforcing element is coated outside the inner sheath, and the outer sheath is coated outside the reinforcing element; the cable is also provided with at least one tearing rope, and the tearing rope is disposed outside the inner sheath, and is disposed inside the reinforcing element. The tensile strength and the compressive strength of the composite cable are effectively improved, the problem of breakage in the wiring process is prevented, and the performance is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cables, more particularly to a kind of indoor reinforcing type optical fiber composite cable. BACKGROUND

[0002] Optical fiber composite cable refers to be suitable for broadband access network system as transmission line, it is a new type of access mode, it integrates optical fiber, power transmission copper wire, can solve broadband access, equipment power, signal transmission problem.

[0003] Common indoor 1.7mm*3.0mm optical fiber composite cable is used in FTTR indoor wiring, site does SC-one light two electric fast connector, low-voltage direct current 1.7mm*3.0mm optical fiber composite cable has only two conductors copper wire to strengthen inside, therefore, the tensile strength of this optical fiber composite cable is about 170N or so.In indoor long-distance wiring, or when subjected to violent construction, optical fiber composite cable is easily broken.In this way, if the tensile strength of optical fiber composite cable is strengthened, it is the direction that the person skilled in the art needs to strive for. SUMMARY

[0004] The utility model aims at providing a kind of indoor reinforcing type optical fiber composite cable, by using the structure, effectively increase the strength of composite cable, improve the convenience of construction.

[0005] To achieve the above-mentioned purpose, the utility model employs the technical scheme that a kind of indoor reinforcing type optical fiber composite cable, including optical fiber, conductor, inner sheath, reinforcing element and outer sheath,

[0006] The conductor is two, two conductors are symmetrically arranged on the two sides of the optical fiber, the inner sheath is wrapped on the outside of optical fiber and conductor, the reinforcing element is wrapped on the outside of the inner sheath, and the outer sheath is wrapped on the outside of the reinforcing element.

[0007] At least one tear rope is further provided, the tear rope is arranged on the outside of the inner sheath, and the tear rope is arranged in the inside of the reinforcing element.

[0008] In the above technical solution, the tear rope and the conductor are arranged parallel to the extension direction of the optical fiber.

[0009] In the above technical solution, the tear rope is two, and the two tear ropes are symmetrically arranged on the two sides of the inner sheath.

[0010] In the above technical solution, the two conductors are arranged on the two sides of the optical fiber, and the two tear ropes are arranged on the other two sides of the optical fiber.

[0011] In the above technical solution, the two sides of the inner sheath are respectively provided with a groove, and each tear rope is arranged opposite to the groove.

[0012] In the technical scheme, the outer wall of the inner sheath is provided with a mounting groove, a color strip marking element is mounted in the mounting groove, the color strip marking element is arranged along the extension direction of the optical fiber, and the reinforcing element is wrapped outside the color strip marking element.

[0013] In the technical scheme, the conductor and the optical fiber have a spacing, the inner sheath is wrapped outside the conductor and the optical fiber, and fills inside the spacing.

[0014] In the technical scheme, the reinforcing element is reinforcing yarn.

[0015] In the technical scheme, the inner sheath and the outer sheath are made of LSZH material.

[0016] In the technical scheme, the cross section of the inner sheath is a rectangular structure, the cross section length of the inner sheath is 2.9mm-3.1mm, and the width is 1.6mm-1.8mm; the diameter of the outer sheath is 4.2mm-4.8mm.

[0017] Due to the technical scheme, the utility model has the following advantages compared with the prior art:

[0018] 1. In the utility model, the reinforcing element is wrapped outside the inner sheath, and a tear rope is further arranged in the reinforcing element, which can effectively improve the tensile strength of the composite cable, and compared with the previous structure, the tensile strength can be increased from about 170N to about 450N, the composite cable is not easy to be pulled off in long-distance wiring or violent construction, and the tensile strength and compressive strength of the composite cable can be effectively improved.

[0019] 2. In the utility model, two tear ropes are arranged on the two sides of the inner sheath, and the reinforcing element is reinforcing yarn, which can not only improve the tensile strength of the composite cable, but also improve the compressive strength and prevent the composite cable from being broken. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the end cross section structure schematic view of the embodiment one of the utility model.

[0021] Among them: 1, optical fiber; 2, conductor; 3, inner sheath; 4, reinforcing element; 5, outer sheath; 6, tear rope; 7, groove; 8, color strip marking element. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with the drawings and embodiments:

[0023] Embodiment one: see Figure 1As shown, a reinforced indoor optical-electric composite cable comprises an optical fiber 1, a conductor 2, an inner sheath 3, a reinforcing element 4 and an outer sheath 5,

[0024] The conductor 2 is two, and the two conductors 2 are symmetrically arranged on the two sides of the optical fiber 1. The inner sheath 3 is wrapped outside the optical fiber 1 and the conductor 2. The reinforcing element 4 is wrapped outside the inner sheath 3. The outer sheath 5 is wrapped outside the reinforcing element 4.

[0025] At least one tear rope 6 is further provided, which is arranged outside the inner sheath 3 and inside the reinforcing element 4.

[0026] In this embodiment, taking the direction shown as an example, the optical fiber is at the center of the inner sheath. Two conductors are symmetrically arranged on the left and right sides of the optical fiber. The conductor is a copper conductor. Each conductor can be a single copper wire or a plurality of copper wires twisted together. A groove is arranged on the top and bottom outer walls of the inner sheath, so that the inner sheath forms a butterfly sheath structure. The two conductors are arranged on the two sides between the two grooves. The conductor and the optical fiber have a spacing therebetween. The inner sheath is wrapped outside the conductor and the optical fiber and fills the inside of the spacing. The optical fiber, the conductor and the inner sheath form a sub-cable. In order to increase the compression and tensile strength, a reinforcing element is further arranged outside the sub-cable in this embodiment, and a tear rope is arranged inside the reinforcing element, so as to increase the compression and tensile strength of the composite cable. The tensile strength can reach 450N, which is not easy to break in long-distance wiring or violent construction. Meanwhile, an outer sheath is wrapped outside the reinforcing element to prevent the reinforcing element from being directly exposed. This not only makes the composite cable more beautiful, but also protects the reinforcing element and prevents damage to the reinforcing element.

[0027] The tear rope 6 and the conductor 2 are arranged in parallel to the extension direction of the optical fiber 1.

[0028] The two tear ropes 6 are symmetrically arranged on the two sides of the inner sheath 3. The two conductors 2 are arranged on the two sides of the optical fiber 1. The two tear ropes 6 are arranged on the other two sides of the optical fiber 1. Taking the direction shown as an example, the two tear ropes are arranged above and below the optical fiber. They are above and below the inner sheath and do not contact the inner sheath. The reinforcing element is wrapped outside the inner sheath and also wrapped around the tear ropes. The reinforcing element, the tear ropes and the inner sheath are connected together, which effectively increases the compression and tensile strength of the composite cable.

[0029] The inner sheath adopts a butterfly sheath, recesses 7 are arranged on the top and bottom outer walls of the inner sheath 3 respectively, and each of the tear ropes 6 is arranged opposite to one of the recesses 7.

[0030] Referring to Figure 1 As shown in the figure, the outer wall of the inner sheath 3 is provided with a mounting groove, and a color strip marking element 8 is mounted in the mounting groove, the color strip marking element 8 is arranged along the extension direction of the optical fiber 1, and the reinforcing element 4 is wrapped outside the color strip marking element 8. The color strip marking part is arranged on the outer wall of the inner sheath, which is used for marking the color code of the optical fiber. Alternatively, the color strip marking can also be directly coated with colorant on the outer wall of the inner sheath, so that the mounting groove does not need to be arranged separately.

[0031] The reinforcing element is reinforcing yarn, which can effectively increase the tensile and compressive strength of the composite cable.

[0032] The inner sheath and the outer sheath are made of LSZH material (low smoke and halogen-free material), and have strong flame retardant performance.

[0033] Referring to Figure 1 As shown in the figure, the cross section of the inner sheath is a rectangular structure, the cross section length of the inner sheath is 2.9mm-3.1mm, and the width is 1.6mm-1.8mm; the diameter of the outer sheath is 4.2mm-4.8mm. Preferably, the cross section length of the inner sheath is 3mm, the width is 1.7mm, and the diameter of the outer sheath is 4.5mm.

[0034] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0035] In the utility model, unless another definite provision and limitation, the term " install", " link", " connect", " fixed" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, for example, two through abutment, contact and so on form mechanical abutment or contact connection mode, two also can be directly hung or through intermediate medium hang up and so on, also can be two element internal communication or two element's interaction relationship. For ordinary skilled person in the art, the specific meaning of the above-mentioned term in the application can be understood according to the specific circumstances.

Claims

1. A reinforced optical fiber composite cable for indoor use, characterized by: The cable comprises an optical fiber, a conductor, an inner sheath, a reinforcing element and an outer sheath. The two conductors are symmetrically arranged on both sides of the optical fiber. At least one tear rope is arranged outside the inner sheath and inside the reinforcing element.

2. The indoor enhanced fiber optic cable assembly of claim 1, wherein: The tear rope and the conductor are arranged in parallel with the extending direction of the optical fiber.

3. The indoor enhanced fiber optic cable assembly of claim 1, wherein: The two tear ropes are symmetrically arranged on both sides of the inner sheath.

4. The indoor enhanced fiber optic cable assembly of claim 3, wherein: The two conductors are arranged on both sides of the optical fiber, and the two tear ropes are arranged on the other two sides of the optical fiber.

5. The indoor enhanced fiber optic cable assembly of claim 4, wherein: Each of the two tear ropes is arranged opposite to one of the two grooves.

6. The indoor enhanced fiber optic cable assembly of claim 1, wherein: A color strip marker is arranged in the mounting groove of the outer wall of the inner sheath.

7. The indoor enhanced fiber optic cable assembly of claim 1, wherein: The reinforcing element is arranged outside the color strip marker.

8. The indoor enhanced fiber optic cable assembly of claim 1, wherein: The conductor is spaced apart from the optical fiber.

9. The indoor enhanced fiber optic cable assembly of claim 1, wherein: The inner sheath and the outer sheath are made of LSZH material.

10. The indoor enhanced fiber optic cable assembly of claim 1, wherein: The cross section of the inner sheath is rectangular, and the length of the cross section is 2.9mm-3.1mm and the width is 1.6mm-1.8mm. The diameter of the outer sheath is 4.2mm-4.8mm.

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