Butterfly-shaped leading-in optical cable convenient to lay

Abstract

The invention belongs to the technical field of optical cables, and discloses a butterfly-shaped leading-in optical cable convenient to lay, which is provided with a butterfly-shaped unit, and a first protection unit and a second protection unit which are used for protecting the butterfly-shaped unit, the first protection unit and the second protection unit are located on the left side and the right side of the butterfly-shaped unit respectively and combined with the upper portion of the butterfly-shaped unit into a whole, and openings are formed between the first protection unit and the butterfly-shaped unit and between the second protection unit and the butterfly-shaped unit. The invention has the following main technical effects: the structure is simple, the manufacture is easy, the production speed is high, the mechanical property is better, and the product is more stable and reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of optical cables, and in particular relates to a butterfly-shaped introduction optical cable which is easy to lay. Background Art

[0002] When the butterfly optical cable is used as a pipeline, it is mainly directly inserted into the pipeline. Since the butterfly unit is easy to rub against the pipeline wall at the inlet and outlet, it is generally protected, such as the following prior art.

[0003] CN215181094U discloses a dual-core butterfly-shaped optical cable for pipelines, which comprises two combined components, a butterfly-shaped unit, a protective layer, and an outer sheath; the combined components are of a special shape and structure; the two combined components are placed opposite to each other, the two butterfly-shaped unit accommodating cavities are assembled into a rectangular parallelepiped butterfly-shaped cavity, the first reinforcement member is located in the upper accommodating cavity of the first combined component, the first reinforcement member is located on the groove of the first combined component, the second reinforcement member is located in the upper accommodating cavity of the second combined component, the second reinforcement member is located on the groove of the second combined component, the butterfly-shaped unit is located in the butterfly-shaped cavity, and the two combined components form a cylindrical structure; the protective layer is located outside the two combined components, and the outer sheath is located outside the protective layer.

[0004] CN214895944U discloses a light-weight pipeline introduction optical cable, comprising a butterfly cable subunit, a reinforcement member and a water-blocking layer. The butterfly cable subunit comprises an optical fiber, a butterfly-shaped sheath wrapped around the optical fiber and a reinforcement member embedded in the butterfly-shaped sheath. The butterfly cable subunit is provided with a reinforcement member between the notches of the butterfly wings on both sides respectively; the reinforcement member is a columnar structure, and each reinforcement member is tangent to the corresponding notch side walls on both sides; the water-blocking layer is tightly wrapped around the butterfly cable subunit and the outer side of the reinforcement member to form a cable core structure, the cross-section of the cable core structure is circular, and the reinforcement member is tangent to the inner side of the water-blocking layer.

[0005] CN113205907A discloses an optoelectronic composite cable for a butterfly pipeline, comprising an inner sheath, a water-blocking tape, a steel pipe, an optical fiber, a reinforcing member, an aluminum tape, a feeder, a tinned copper wire braid layer and an outer sheath. The steel pipe is sleeved on the optical fiber, the optical fiber is fixedly installed on the inner sheath, the feeder is fixedly installed on the inner sheath, the reinforcing member is fixedly installed on the inner sheath, several groups of water-blocking tapes are evenly wound on the inner sheath, the aluminum tape is fixedly installed on the outer wall of the water-blocking tape, the tinned copper wire braid layer is fixedly sleeved on the outer wall of the aluminum tape, and the outer sheath is fixedly sleeved on the outer wall of the tinned copper wire braid layer.

[0006] The above-mentioned optical cables all have reinforcement members directly placed on both sides of the butterfly unit, and then wrapped or covered together through a protective layer or a coating layer. When subjected to force, the reinforcement members press the butterfly unit, and the structure is complex, the production speed is slow, the cost is high, and the product is not round. In addition, since the additional part is heavy, it is not suitable for overhead laying. Summary of the invention

[0007] To solve the above problems, the purpose of the present invention is to disclose a butterfly-shaped optical cable that is easy to lay, which is achieved by adopting the following technical solutions.

[0008] A butterfly-shaped optical cable introduction that is easy to lay has a butterfly unit, and also has a first protection unit and a second protection unit for protecting the butterfly unit. The first protection unit and the second protection unit are respectively located on the left and right sides of the butterfly unit and are respectively integrated with the upper part of the butterfly unit. There are openings between the first protection unit, the second protection unit and the butterfly unit.

[0009] The butterfly-shaped optical cable introduced above is easy to lay, and the distance between the left and right sides of the butterfly unit is the width of the butterfly unit, and the distance between the highest point of the upper end surface of the butterfly unit and the lowest point of the lower end is the height of the butterfly unit.

[0010] In the butterfly-shaped optical cable introduced above which is easy to lay, the outer surfaces of the butterfly-shaped unit, the first protection unit and the second protection unit are on the same cylindrical surface.

[0011] A butterfly-shaped optical cable introduction that is easy to lay has a butterfly unit, which is composed of an optical communication component, a reinforcement member, and a butterfly sheath. The reinforcement member is located on the upper and lower sides of the optical communication component, and the butterfly sheath covers the optical communication component and the reinforcement member; it also has a first protection unit and a second protection unit, which are respectively located on the left and right sides of the butterfly sheath, and the first protection unit, the butterfly sheath, and the second protection unit are combined into one.

[0012] The above-mentioned butterfly-shaped optical cable introduction is easy to lay, and the optical communication component is an optical fiber or an optical fiber ribbon, and the optical fiber ribbon is composed of multiple optical fibers and an adhesive layer covering all the optical fibers.

[0013] The butterfly-shaped optical cable introduced above is easy to lay, and the butterfly-shaped sheaths on the left and right sides of the optical communication component have tearing holes; a first opening is provided between the bottom of the first protection unit and the butterfly-shaped sheath, and a second opening is provided between the bottom of the second protection unit and the butterfly-shaped sheath.

[0014] The butterfly-shaped optical cable introduced above, which is easy to lay, has a first tearing opening between the upper part of the first protection unit and the butterfly-shaped sheath, and a second tearing opening between the upper part of the second protection unit and the butterfly-shaped sheath.

[0015] In the butterfly-shaped optical cable introduced above which is easy to lay, the first protection unit is composed of a first reinforcement member and a first protection sleeve covering the first reinforcement member.

[0016] In the butterfly-shaped optical cable introduced above which is easy to lay, the second protection unit is composed of a second reinforcement member and a second protection sleeve covering the second reinforcement member.

[0017] The butterfly-shaped optical cable introduced above is easy to lay, the upper end surface of the butterfly sheath is a part of the cylindrical surface, the lower end surface of the butterfly sheath is a part of the cylindrical surface, and the left and right surfaces of the butterfly sheath are both planes.

[0018] In the butterfly-shaped optical cable introduced above which is easy to lay, the outer edge of the first protective cover, the outer edge of the second protective cover, the upper end surface of the butterfly-shaped cover, and the lower end surface of the butterfly-shaped cover are on the same cylindrical surface.

[0019] In the above-mentioned butterfly-shaped optical cable introduction cable which is easy to lay, the height of the butterfly-shaped unit is greater than the width of the butterfly-shaped unit.

[0020] In the above-mentioned butterfly-shaped optical cable which is easy to lay, the first reinforcement member is replaced by 1 to 4 insulated conductors, and the second reinforcement member is replaced by 1 to 4 insulated conductors, wherein the insulated conductors are composed of a conductor and an insulating layer covering the conductor.

[0021] The present application has the following main beneficial technical effects: simple structure, easy manufacturing, fast production speed, better mechanical properties, and more stable and reliable products. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure after dissection of Example 1.

[0023] Figure 2 for Figure 1 Schematic diagram of the enlarged cross-section structure.

[0024] Figure 3 for Figure 2 A schematic diagram after some reference numerals are removed.

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure after dissection of Example 2.

[0026] Figure 5 for Figure 4 Schematic diagram of the enlarged cross-section structure.

[0027] Figure 6 for Figure 5 Schematic diagram of a cross-section of the structure after construction. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand and implement this patent, the marks in the drawings are now described in detail in conjunction with the drawings in the specification.

[0029] In the figure: 1—butterfly unit, 2—first protection unit, 3—second protection unit, 11—optical fiber, 12—reinforcement member, 13—butterfly sheath, 14—tear opening, 15—first tear opening, 16—second tear opening, 17—first opening, 18—second opening, 21—first reinforcement member, 22—first protective cover, 31—second reinforcement member, 32—second protective cover, H—height of butterfly unit, W—width of butterfly unit, 111—adhesive layer, 41—first steel wire rope, 42—second steel wire rope.

[0030] Implementation Example 1: Please see Figures 1 to 3 A butterfly-shaped optical cable introduction cable which is easy to lay comprises a butterfly-shaped unit 1, which is composed of an optical communication component, a reinforcing member 12 and a butterfly-shaped sheath 13, wherein the reinforcing member is located at the upper and lower sides of the optical communication component, and the butterfly-shaped sheath covers the optical communication component and the reinforcing member; the butterfly-shaped unit 1 also comprises a first protection unit 2 and a second protection unit 3, wherein the first protection unit and the second protection unit are respectively located at the left and right sides of the butterfly sheath, and the first protection unit, the butterfly sheath and the second protection unit are combined into one.

[0031] The butterfly-shaped optical cable introduced above, which is easy to lay, has tearing openings 14 on the butterfly-shaped sheaths on the left and right sides of the optical communication component.

[0032] The butterfly-shaped optical cable introduced above, which is easy to lay, has a first opening 17 between the lower part of the first protection unit and the butterfly-shaped sheath.

[0033] The butterfly-shaped optical cable introduced above, which is easy to lay, has a second opening 18 between the lower part of the second protection unit and the butterfly-shaped sheath.

[0034] The butterfly-shaped optical cable introduced above, which is easy to lay, has a first tearing opening 15 between the upper part of the first protection unit and the butterfly-shaped sheath.

[0035] The butterfly-shaped optical cable introduced above, which is easy to lay, has a second tear-off opening 16 between the upper part of the second protection unit and the butterfly-shaped sheath.

[0036] In the butterfly-shaped optical cable introduced above which is easy to lay, the first protection unit is composed of a first reinforcement member 21 and a first protection cover 22 covering the first reinforcement member.

[0037] In the butterfly-shaped optical cable introduced above which is easy to lay, the second protection unit is composed of a second reinforcement member 31 and a second protection cover 32 covering the second reinforcement member.

[0038] The butterfly-shaped optical cable introduced above is easy to lay, the upper end surface of the butterfly sheath is a part of the cylindrical surface, the lower end surface of the butterfly sheath is a part of the cylindrical surface, and the left and right surfaces of the butterfly sheath are both planes.

[0039] In the butterfly-shaped optical cable introduced above, which is easy to lay, the outer edge of the first protective cover 22, the outer edge of the second protective cover 32, the upper end surface of the butterfly cover, and the lower end surface of the butterfly cover are on the same cylindrical surface.

[0040] In the above-mentioned butterfly-shaped optical cable introduction cable which is easy to lay, the height H of the butterfly-shaped unit is greater than the width W of the butterfly-shaped unit.

[0041] In the butterfly-shaped optical cable introduced above, which is easy to lay, the first reinforcement member 21 is replaced by 1 to 4 insulated conductors, and the second reinforcement member 31 is replaced by 1 to 4 insulated conductors. The insulated conductors are composed of a conductor and an insulating layer covering the conductor.

[0042] The above-mentioned butterfly-shaped optical cable introduction is easy to lay, and the optical communication component is the optical fiber 11.

[0043] Implementation Example 2: Please see Figures 4 to 6 , and refer to Figures 1 to 3 , a butterfly-shaped optical cable introduction that is easy to lay, is basically the same as implementation example 1, except that the optical communication component is composed of multiple optical fibers 11 and an adhesive layer 111 that covers all the optical fibers.

[0044] The butterfly-shaped optical cable introduced in the present application, when used for aerial laying, has the first opening 17 sleeved on the first steel wire rope 41, and the second opening 18 sleeved on the second steel wire rope 42, and the first steel wire rope 41 is parallel to the second steel wire rope 42. This method allows the optical cable to be laid aerially, and, during construction, at a bend, such as when stretching a corner, due to the protection of the first protection unit 2 and the second protection unit 3, stretching and friction will not damage the butterfly unit 1, thereby effectively protecting the butterfly unit 1; on the other hand, the first reinforcement member 21 and the second reinforcement member 31 greatly improve the tensile strength, compression resistance, bending resistance, and wear resistance of the optical cable; and, since the height and width of the butterfly sheath are consistent with the height and width of the butterfly unit in the prior art, the optical fiber connector in the prior art can be conveniently used without the need to further improve or redesign the optical fiber connector.

[0045] The butterfly-shaped optical cable introduced in the present application, when laid in a pipeline, is suitable for being placed in the pipeline due to its cylindrical structure, and can more reasonably utilize the pipeline space. On the other hand, due to the presence of the first protection unit 2 and the second protection unit 3, when the optical cable rubs against the edge of the pipeline during the process of being pulled into and out of the pipeline, the butterfly unit 1 is effectively protected and will not be worn or damaged.

[0046] Compared with the pipe optical cable in the prior art, in the present application, the reinforcement parts are placed on both sides of the butterfly unit, and then cover the butterfly unit and the reinforcement parts. The structure is simpler, the product manufacturing is more convenient, the product is more rounded, and when subjected to force, the butterfly unit will not be damaged due to the pressure of the reinforcement parts.

[0047] In the present application, when the first reinforcement is replaced by an insulated conductor and the second reinforcement is replaced by an insulated conductor, while increasing the mechanical properties of the optical cable, power can also be transmitted at the same time, achieving the purpose of simultaneously entering the home with power and optical signals.

[0048] The butterfly-shaped optical fiber cable described in the present application is easy to lay, and the type of the optical fiber 11 is G.652, G.655, G.656, G.657, A1a, A1b, or A1c.

[0049] The butterfly-shaped optical cable introduced in the present application which is easy to lay, the strength member 12 is a steel wire, an iron wire, an aluminum wire, a copper wire, an alloy wire, a glass fiber reinforced plastic rod, an aramid yarn, or a glass fiber yarn.

[0050] The butterfly-shaped optical cable introduced in the present application is easy to lay, and the material of the butterfly-shaped sheath 13 is plastic.

[0051] The butterfly-shaped optical cable introduced in the present application which is easy to lay, the first reinforcement member 21 is a steel wire, an iron wire, an aluminum wire, a copper wire, an alloy wire, a glass fiber reinforced plastic rod, an aramid yarn, or a glass fiber yarn.

[0052] In the butterfly-shaped optical cable introduced in the present application, which is easy to lay, the material of the first protective sheath 22 is plastic.

[0053] In the butterfly-shaped optical cable introduced in the present application, which is easy to lay, the second reinforcement member 31 is a steel wire, an iron wire, an aluminum wire, a copper wire, an alloy wire, a glass fiber reinforced plastic rod, an aramid yarn, or a glass fiber yarn.

[0054] In the butterfly-shaped optical cable introduced in the present application and convenient for laying, the material of the second protective sheath 32 is plastic.

[0055] In the butterfly-shaped optical cable introduced in the present application, which is easy to lay, the material of the adhesive layer 111 is plastic, preferably polyacrylic resin.

[0056] In the present application, the first protection unit 2 and the second protection unit 3 preferably have the same structure, are symmetrically distributed on both sides of the butterfly unit, and are combined with the upper end part of the side of the butterfly sheath of the butterfly unit.

[0057] In the present application, the butterfly unit 1, the first protection unit 2 and the second protection unit 3 are an integrated structure and are formed as one piece by a sheath extruder.

[0058] In the present application, the first opening and the second opening are not only used for engaging the wire rope and hooking, but also for tearing off the first protection unit and the second protection unit when connecting; similarly, the first tear-off opening and the second tear-off opening are also used for tearing off the first protection unit and the second protection unit; in this way, the width and height of the butterfly unit can be guaranteed to match the optical fiber connector in the prior art.

[0059] In the present application, the cross-section of the butterfly-shaped introduction optical cable is similar to the structure of a wing, which effectively protects the butterfly unit and is more convenient for overhead hanging installation; the wing structure improves the tensile force and resistance to lateral pressure and impact; the wing structure and the butterfly unit together form a nearly circular optical cable, which is also convenient for pipeline laying and is not easily damaged during construction, thus forming effective protection; compared with the pipeline butterfly optical cable in the prior art, it has greater tensile force, is not easily crushed, and has a rounded product; it is easy to produce and can be formed in one step.

[0060] In the present application, it is not necessary to have the first and second reinforcement members, as long as the first and second protective covers have sufficient strength and hardness, and will not cause gravity tearing of the first and second protective units during and after hooking.

[0061] In the present application, it is preferred that: the junction between the innermost bottom end of the first protection unit and the butterfly sheath is located above the tearing hole. Similarly, the junction between the innermost bottom end of the second protection unit and the butterfly sheath is also located above the tearing hole. In this way, when the overhead installation is carried out, the tearing hole is located above the first and second steel wire ropes, thereby more effectively protecting the butterfly unit so that it will not be easily bitten by birds and other animals at the tearing hole.

[0062] In the present application, the presence of the first and second protection units effectively resists external impacts, pressure, etc., and further improves the strength of the optical cable, making it more suitable for overhead and pipeline laying. There is no need to worry about the damage of the butterfly-shaped introduction optical cable when the optical cable is constructed using the tension of conventional pipeline optical cables; of course, the materials of the first protective cover and the second protective cover can also be high-strength foamed materials, which can significantly reduce the weight of the optical cable.

[0063] The present application can be used as an intelligent sensor or intelligent sensing element; since it can transmit voice and images, it can also be used as a physical sensor, such as a voice sensor or an image sensor; since it transmits optical signals through the principle of total reflection, it can also be used as a distance sensor; the optical fiber in the present application is an optical waveguide itself, so it can be used as an optical waveguide, such as an array optical waveguide or a diffraction optical waveguide; the present application can also be used in the field of optical computing, as part of optical chip computing, in the fields of optical computing, optical computing, and optical network computing.

[0064] The present application has the following main beneficial technical effects: simple structure, easy manufacturing, fast production speed, better mechanical properties, and more stable and reliable products.

[0065] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A butterfly-shaped optical cable that is easy to lay, having a butterfly-shaped unit, characterized in that: It also has a first protection unit and a second protection unit for protecting the butterfly unit. The first protection unit and the second protection unit are respectively located on the left and right sides of the butterfly unit and are respectively integrated with the upper part of the butterfly unit. There are openings between the first protection unit, the second protection unit and the butterfly unit.

2. A butterfly-shaped optical cable introduction cable that is easy to lay, comprising a butterfly-shaped unit (1), the butterfly-shaped unit comprising an optical communication component, a reinforcing member (12), and a butterfly-shaped sheath (13), the reinforcing member being located at the upper and lower sides of the optical communication component, and the butterfly-shaped sheath covering the optical communication component and the reinforcing member; characterized in that: It also comprises a first protection unit (2) and a second protection unit (3), wherein the first protection unit and the second protection unit are respectively located on the left and right sides of the butterfly-shaped protective cover, and the first protection unit, the butterfly-shaped protective cover and the second protection unit are integrated into one.

3. The butterfly-shaped optical cable for easy installation according to claim 2, characterized in that: The optical communication component is an optical fiber (11) or an optical fiber ribbon, and the optical fiber ribbon is composed of a plurality of optical fibers (11) and an adhesive layer (111) covering all the optical fibers.

4. The butterfly-shaped optical cable for easy installation according to claim 2, characterized in that: The butterfly-shaped sheaths on the left and right sides of the optical communication component are provided with tearing openings (14); a first opening (17) is provided between the bottom of the first protection unit and the butterfly-shaped sheath, and a second opening (18) is provided between the bottom of the second protection unit and the butterfly-shaped sheath.

5. The butterfly-shaped optical cable for easy installation according to claim 2, characterized in that: A first tearing opening (15) is provided between the upper portion of the first protection unit and the butterfly-shaped protective cover, and a second tearing opening (16) is provided between the upper portion of the second protection unit and the butterfly-shaped protective cover.

6. The butterfly-shaped optical cable for easy installation according to claim 2, characterized in that: The upper end surface of the butterfly sleeve is a part of a cylindrical surface, the lower end surface of the butterfly sleeve is a part of a cylindrical surface, and the left and right surfaces of the butterfly sleeve are both planes; the outer edge of the first protective sleeve (22), the outer edge of the second protective sleeve (32), the upper end surface of the butterfly sleeve, and the lower end surface of the butterfly sleeve are on the same cylindrical surface.

7. A butterfly-shaped optical cable that is easy to lay according to claim 1 or claim 2, characterized in that: The height of the butterfly unit is greater than the width of the butterfly unit.

8. A butterfly-shaped optical cable that is easy to lay according to any one of claims 1 to 5, characterized in that: The first protection unit is composed of a first reinforcement piece (21) and a first protection cover (22) covering the first reinforcement piece.

9. A butterfly-shaped optical cable for easy installation according to claim 8, characterized in that: The second protection unit is composed of a second reinforcement piece (31) and a second protection cover (32) covering the second reinforcement piece.

10. The butterfly-shaped optical cable for easy installation according to claim 7, characterized in that: The first reinforcement member (21) is replaced by 1 to 4 insulated wires, and the second reinforcement member (31) is replaced by 1 to 4 insulated wires, wherein the insulated wires are composed of a conductor and an insulating layer covering the conductor.

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