Full-dry indoor miniature lead-in optical cable

Abstract

The utility model relates to the technical field of indoor miniature lead-in optical cables, and discloses a full-dry type indoor miniature lead-in optical cable, which comprises a loose tube, a water-blocking yarn is arranged in the loose tube, and a tight tube optical fiber is arranged in the water-blocking yarn. According to the full-dry type indoor miniature lead-in optical cable, the steel strand and other parts are arranged, the copper-plated steel strand is adopted, the mechanical tensile property of the optical cable is enhanced, additional corrosion-resistant protection is provided, the visibility and the identification degree of the optical cable are improved by utilizing the design that the outer sheath is extruded with the double-color strip, construction personnel can conveniently and rapidly identify the type of the optical cable, and the construction efficiency is improved. The water-blocking yarn and the water-blocking tape are used for replacing traditional factice filling to form a full-dry structure, the problem of environmental pollution possibly caused by factice is avoided, the weight of the optical cable is reduced, the parallel reinforcers are combined with the steel tape for armoring, excellent anti-flattening performance and tensile strength are provided, and the problems that the mechanical tensile property is poor, and the service life is long are solved. And the construction personnel cannot quickly identify the type of the optical cable.

Description

Technical Field

[0001] The utility model relates to the technical field of indoor micro-introduction optical cables, in particular to a fully dry indoor micro-introduction optical cable. Background Art

[0002] With the construction and updating of basic communication facilities, the market demand for parallel reinforcement optical cables with smaller size and good bending performance is increasing. The fully dry indoor micro-introduction optical cable is an optical cable used for communication connections between computer rooms. It has 4 to 24 optical fiber cores and requires high mechanical tensile performance. It is water-resistant, easy to identify, and easy to strip, making it easy to install and construct, bringing great convenience to construction.

[0003] The existing fully dry indoor micro-drop optical cable design has poor mechanical tensile performance, making it difficult for construction workers to quickly identify the type of optical cable. In addition, the previous design using grease inside the optical cable is prone to environmental pollution problems. The optical cable is heavy and has poor anti-flattening performance and tensile strength.

[0004] Now, a new type of fully dry indoor micro-introduction optical cable is proposed to solve the above solution. Utility Model Content

[0005] The purpose of the utility model is to provide a fully dry indoor micro-introduction optical cable to solve the problems raised in the above background technology, such as poor mechanical tensile performance and inconvenience for construction workers to quickly identify the type of optical cable.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a fully dry indoor micro-introduction optical cable, comprising a loose tube, a water-blocking yarn is arranged inside the loose tube, a tight-buffered optical fiber is arranged inside the water-blocking yarn, a water-blocking tape is arranged outside the loose tube, the outside of the water-blocking tape is wrapped with a rubber sleeve, the outside of the rubber sleeve is wrapped with a steel belt, the outside of the steel belt is fixedly connected to a parallel reinforcement member, the outside of the steel belt is sleeved with a sheath, the inside of the sheath is provided with a tear rope, the inside of the sheath is provided with a steel strand, and the outside of the sheath is fixedly connected to a color strip.

[0007] Preferably, two groups of color strips are provided, and the color strips are symmetrically distributed at the top and bottom ends of the sheath.

[0008] Preferably, the steel strands are provided in two groups, each group consisting of three.

[0009] Preferably, the steel strand is made of copper-plated material.

[0010] Preferably, the size of the steel strands is 3*0.4mm in parallel.

[0011] Preferably, hollow grooves are provided inside the rubber sleeve, and at least ten groups of hollow grooves are provided. The hollow grooves are evenly spaced and distributed inside the rubber sleeve.

[0012] Preferably, the interior of the hollow groove is filled with dry powder.

[0013] Preferably, the outside of the sheath is coated with a protective coating, and the protective coating is an environmentally friendly and non-toxic repellent.

[0014] Compared with the existing technology, the beneficial effects of the present invention are: the fully dry indoor micro drop optical cable not only realizes the mechanical tensile performance, facilitates the construction personnel to quickly identify the optical cable type, and has a fully dry structure and excellent anti-flattening performance and tensile strength, realizing the safety protection of the optical cable after the fire, but also realizes the characteristics of long-term effect, low toxicity and good thermal stability;

[0015] (1) By setting up parts such as steel strands and using parallel 3*0.4mm copper-plated steel strands, the mechanical tensile properties of the optical cable are enhanced, and additional anti-corrosion protection is provided to ensure that the optical cable can maintain stable performance under various environmental conditions. The design of the extruded double-color strips on the outer sheath improves the visibility and recognition of the optical cable, making it easier for construction workers to quickly identify the type of optical cable, speeding up construction and reducing construction errors. Water-blocking yarn and water-blocking tape are used instead of traditional grease filling to form a fully dry structure, avoiding the environmental pollution problems that may be caused by grease, while reducing the weight of the optical cable and improving the convenience of installation. The structural design of parallel reinforcement combined with steel belt armor provides excellent anti-compression performance and tensile strength, enabling the optical cable to adapt to various harsh construction environments and usage conditions;

[0016] (2) By providing a rubber sleeve, a hollow groove, and dry powder, the hollow groove is provided inside the rubber sleeve, at least ten groups of hollow grooves are provided, the hollow grooves are evenly spaced inside the rubber sleeve, and the hollow grooves are filled with dry powder, so that the safety of the incoming optical cable can be protected as much as possible after a fire occurs;

[0017] (3) By providing a protective coating, the outer portion of the sheath is coated with a protective coating, and the protective coating is an environmentally friendly non-toxic repellent. The environmentally friendly non-toxic repellent is coated on the outer portion of the entire introduction optical cable, making it have the characteristics of long-lasting, low toxicity, and good thermal stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0019] Figure 2 This is a side view of the structure of the connection method between the sheath and the protective coating of the utility model;

[0020] Figure 3This is a front view structural diagram of the connection method between the color strip and the sheath of the utility model;

[0021] Figure 4 This is a front view structural diagram of the connection method between the rubber sleeve and the water-blocking tape of the present invention.

[0022] In the figure: 1. Loose tube; 2. Water-blocking yarn; 3. Tight-buffered optical fiber; 4. Water-blocking tape; 5. Steel strand; 6. Rubber sleeve; 7. Hollow groove; 8. Steel belt; 9. Sheath; 10. Protective coating; 11. Color strip; 12. Dry powder; 13. Tear cord; 14. Parallel reinforcement. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figure 1-4 A fully dry indoor micro-drop optical cable comprises a loose tube 1, a water-blocking yarn 2 is provided inside the loose tube 1, a tight-buffered optical fiber 3 is provided inside the water-blocking yarn 2, a water-blocking tape 4 is provided outside the loose tube 1, a rubber sleeve 6 is wrapped outside the water-blocking tape 4, a steel belt 8 is wrapped outside the rubber sleeve 6, a parallel reinforcement member 14 is fixedly connected to the outside of the steel belt 8, a sheath 9 is sleeved on the outside of the steel belt 8, a tear cord 13 is provided inside the sheath 9, a steel strand 5 is provided inside the sheath 9, and a color strip 11 is fixedly connected to the outside of the sheath 9;

[0025] There are two groups of color strips 11, which are symmetrically distributed at the top and bottom ends of the sheath 9;

[0026] There are two groups of steel strands 5, each group consists of three, the material of the steel strands 5 is copper-plated material, and the size of the steel strands 5 is parallel 3*0.4mm;

[0027] Specifically, if Figure 1 and Figure 3As shown, the use of parallel 3*0.4mm copper-plated steel strands 5 enhances the mechanical tensile properties of the optical cable and provides additional corrosion protection, ensuring that the optical cable can maintain stable performance under various environmental conditions. The design of the extruded double-color strips 11 on the outer sheath 9 improves the visibility and recognition of the optical cable, making it easier for construction workers to quickly identify the type of optical cable, speeding up construction and reducing construction errors. Water-blocking yarn 2 and water-blocking tape 4 are used instead of traditional grease filling to form a fully dry structure, avoiding the environmental pollution problems that may be caused by grease, while reducing the weight of the optical cable and improving the convenience of installation. The structural design of parallel reinforcement members 14 combined with steel belt 8 armor provides excellent anti-compression performance and tensile strength, allowing the optical cable to adapt to various harsh construction environments and usage conditions.

[0028] Example 2: The rubber sleeve 6 is provided with hollow grooves 7, and at least ten groups of hollow grooves 7 are provided. The hollow grooves 7 are evenly spaced and distributed inside the rubber sleeve 6. The inside of the hollow grooves 7 is filled with dry powder 12;

[0029] Specifically, if Figure 1 and Figure 4 As shown, hollow grooves 7 are provided inside the rubber sleeve 6, and at least ten groups of hollow grooves 7 are provided. The hollow grooves 7 are evenly spaced inside the rubber sleeve 6, and the interior of the hollow grooves 7 is filled with dry powder 12. This can protect the safety of the introduced optical cable as much as possible after a fire occurs.

[0030] Example 3: The outer portion of the sheath 9 is coated with a protective coating 10, which is an environmentally friendly and non-toxic repellent;

[0031] Specifically, if Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the outside of the sheath 9 is coated with a protective coating 10, which is an environmentally friendly non-toxic repellent. The environmentally friendly non-toxic repellent is coated on the outside of the entire introduction optical cable, making it have the characteristics of long-lasting, low toxicity and good thermal stability.

[0032] Working principle: When the utility model is in use, first, the parallel 3*0.4mm copper-plated steel strands 5 are used to enhance the mechanical tensile properties of the optical cable and provide additional anti-corrosion protection to ensure that the optical cable can maintain stable performance under various environmental conditions. The design of the extruded double-color strips 11 on the outer sheath 9 improves the visibility and recognition of the optical cable, making it easier for construction workers to quickly identify the type of optical cable, speeding up construction and reducing construction errors. The water-blocking yarn 2 and water-blocking tape 4 are used instead of traditional grease filling to form a fully dry structure, avoiding the environmental pollution problems that may be caused by grease, while reducing the weight of the optical cable and improving the convenience of installation. The parallel reinforcement 14 is used to form a knot. The structural design of the armored steel belt 8 provides excellent anti-compression performance and tensile strength, so that the optical cable can adapt to various harsh construction environments and usage conditions. Afterwards, the interior of the rubber sleeve 6 is provided with hollow grooves 7, and there are at least ten groups of hollow grooves 7. The hollow grooves 7 are evenly spaced inside the rubber sleeve 6. The interior of the hollow grooves 7 is filled with dry powder 12, which can protect the safety of the introduced optical cable as much as possible after a fire occurs. Finally, the outside of the sheath 9 is coated with a protective coating 10, and the protective coating 10 is an environmentally friendly and non-toxic repellent. The environmentally friendly and non-toxic repellent is coated on the outside of the entire introduced optical cable, so that it has the characteristics of long-lasting, low toxicity and good thermal stability.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A fully dry indoor micro drop optical cable, comprising a loose tube (1), characterized in that: The loose tube (1) is provided with a water-blocking yarn (2) inside, a tight-fitting optical fiber (3) inside the water-blocking yarn (2), a water-blocking tape (4) outside the loose tube (1), a rubber sleeve (6) outside the water-blocking tape (4), a steel belt (8) outside the rubber sleeve (6), a parallel reinforcement member (14) outside the steel belt (8) is fixedly connected, a sheath (9) is sleeved outside the steel belt (8), a tear rope (13) is provided inside the sheath (9), a steel strand (5) is provided inside the sheath (9), and a color strip (11) is fixedly connected outside the sheath (9).

2. The fully dry indoor micro drop optical cable according to claim 1, characterized in that: Two groups of color strips (11) are provided, and the color strips (11) are symmetrically distributed at the top and bottom ends of the sheath (9).

3. The fully dry indoor micro drop optical cable according to claim 1, characterized in that: The steel strands (5) are provided in two groups, each group having three strands.

4. The fully dry indoor micro drop optical cable according to claim 1, characterized in that: The steel strand (5) is made of copper-plated material.

5. The fully dry indoor micro drop optical cable according to claim 1, characterized in that: The dimensions of the steel strands (5) are parallel 3*0.4 mm.

6. The fully dry indoor micro drop optical cable according to claim 1, characterized in that: Hollow grooves (7) are provided inside the rubber sleeve (6), and at least ten groups of the hollow grooves (7) are provided. The hollow grooves (7) are distributed at equal intervals inside the rubber sleeve (6).

7. The fully dry indoor micro drop optical cable according to claim 6, characterized in that: The interior of the hollow groove (7) is filled with dry powder (12).

8. The fully dry indoor micro drop optical cable according to claim 1, characterized in that: The outer portion of the sheath (9) is coated with a protective coating (10), and the protective coating (10) is an environmentally friendly and non-toxic repellent.

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