Optical fiber ribbon optical cable with composite component

Abstract

The invention belongs to the field of optical cables, and discloses an optical fiber ribbon optical cable with a composite component, which comprises a loose tube, a plurality of optical fiber ribbons, the composite component and an outer sheath, the composite component enables the optical fiber ribbons with different core numbers to be arranged in an extension component of the composite component through extension grooves with different depths, and meanwhile, the material and space occupation of the composite component can be saved. The optical cable has the main beneficial technical effects that the structure is simple and easy to manufacture, optical fiber ribbons of different specifications can be placed in the same optical cable, the requirements of users with different requirements are met, the structure is compact, the cost is low, the space utilization rate is high, the optical fiber ribbons are easy to take and place, and the inspection and construction efficiency is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of optical cables, and in particular relates to an optical fiber ribbon cable with a composite component. Background Art

[0002] With the growth of demand for broadband access, different customers have different demands. Therefore, there is a constant demand for optical fiber ribbons with different specifications in the same optical cable.

[0003] In the prior art, the rectangular skeleton groove of skeleton optical cables is generally used to stack optical fiber ribbons of the same specifications, and the optical fiber ribbons are basically perpendicular to the center. When different optical fiber ribbons are used, the skeleton size and cost increase. Both the central bundle tube optical cable and the layer-stranded optical cable have circular loose tubes. Although optical fiber ribbons of different specifications can be placed in the loose tubes, it is difficult to strip them and the loose tubes need to be destroyed.

[0004] CN112904511A discloses a skeleton cable, comprising a skeleton with multiple skeleton grooves, an optical fiber unit installed in the skeleton grooves, a waterproof layer covering the skeleton and the optical fiber unit, and a sheath layer covering the waterproof layer; the end of the skeleton groove has a positioning notch, and the optical fiber unit comprises: a cover plate, both ends of which are placed on the positioning notch of the skeleton groove; multiple optical fiber ribbons, located in the skeleton groove, one side end of each optical fiber ribbon is connected to the inner side of the cover plate through a first connecting portion, and an identification mark is sprayed at the intersection of the first connecting portion and the cover plate, and the color of the identification mark of each optical fiber ribbon is different. Each optical fiber ribbon of the optical fiber unit is connected to the cover plate, and the positional relationship between each optical fiber ribbon is determined, and there is no problem of entanglement or misalignment; when connecting, the corresponding optical fiber ribbon can be quickly selected through identification marks of different colors.

[0005] However, it cannot solve the above-mentioned technical problems. Summary of the invention

[0006] To solve the above problems, the purpose of the present invention is to disclose an optical fiber ribbon cable with a composite component, which is achieved by adopting the following technical solutions.

[0007] The invention discloses an optical fiber ribbon cable with a composite component, comprising a loose tube, a plurality of optical fiber ribbons, a composite component and an outer sheath. The loose tube comprises a tube body and a plurality of optical fiber ribbons, the plurality of optical fiber ribbons are distributed in the inner cavity of the tube body in a stacked manner, the composite component is composed of a composite body and a plurality of extension components, the composite body has a body hole inside, the plurality of extension components are distributed along the outer edge of the composite body, each extension component is composed of a plurality of extension strips distributed in sequence, extension grooves are formed between adjacent extension strips, the outer edges of all extension strips in the extension component are on the same circumference, the extension grooves extend inwardly into the composite body, or the extension grooves extend inwardly only to the outer edge of the composite body, or at least one extension groove extends inwardly into the composite body, and the outermost edges of the longest extension strips of all extension components are on the same circumference; the optical fiber ribbon is located in the extension groove, and the number of optical fibers in the optical fiber ribbon in the same extension component is not completely equal; the loose tube is located in the body hole, and the outer sheath is coated on the outside of the composite component.

[0008] In the optical fiber ribbon cable with composite components described above, the loose tube is replaced by a reinforcing component, and the reinforcing component is composed of a central reinforcing member and a cushion layer, and the cushion layer covers the central reinforcing member.

[0009] The optical fiber ribbon cable having a composite component described above has an integrated structure.

[0010] In the optical fiber ribbon cable with composite components described above, the optical fiber ribbon is composed of multiple optical fibers and an adhesive layer covering all the optical fibers as a whole or at their edges, and the multiple optical fibers are arranged in rows and are not in contact with each other.

[0011] The optical fiber ribbon cable with composite components described above has an optical fiber model of G.652, G.655, G.667, A1a, or A1b.

[0012] In the optical fiber ribbon cable with composite components described above, the material of the outer sheath is plastic.

[0013] In the optical fiber ribbon cable with composite components described above, the material of the sleeve body is plastic.

[0014] The optical fiber ribbon cable having a composite component is made of plastic, metal or alloy.

[0015] In the optical fiber ribbon cable with composite components described above, the material of the central reinforcement member is steel wire, copper wire, aluminum wire, glass fiber reinforced plastic, aramid yarn, aramid yarn bundle, glass fiber yarn bundle, twisted steel wire rope, or twisted aluminum wire rope.

[0016] In the optical fiber ribbon cable with composite components described above, the cushion layer is made of plastic.

[0017] In the present application, an optical fiber ribbon cable with a composite component includes a loose tube, a plurality of optical fiber ribbons, a composite component, and an outer sheath, and is characterized in that: optical fiber ribbons with different core numbers can be arranged in the extension component of the composite component through extension grooves of different depths, and at the same time, the material and space occupied by the composite component can be saved; the outer sheath covers the composite component, the loose tube is located in the center of the composite component, and the optical fiber ribbon is located in the extension groove.

[0018] The present invention has the following main beneficial technical effects: simple structure, easy manufacturing, optical fiber ribbons of different specifications can be placed in the same optical cable, meeting the requirements of users with different needs, compact structure, low cost, high space utilization, easy to take and place the optical fiber ribbon, and higher inspection and construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure after dissection of Example 1.

[0020] Figure 2 for Figure 1 Schematic diagram of the enlarged cross-section structure.

[0021] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of a section of the composite component used in the process after being disassembled.

[0022] Figure 4 for Figure 3 Schematic diagram of the enlarged cross-section structure.

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure after dissection of Example 2.

[0024] Figure 6 for Figure 5 Schematic diagram of the enlarged cross-section structure.

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of implementation example 3.

[0026] Figure 8 This is a schematic diagram of the three-dimensional structure of a section of the composite component used in Example 3 after being disassembled.

[0027] Fig. 9 for Figure 8 Schematic diagram of the enlarged cross-section structure. 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-loose tube, 2-optical fiber ribbon, 3-composite component, 4-outer sheath, 5-reinforcement component, 11-optical fiber ribbon, 12-tube body, 30-body hole, 31-composite body, 32-extension component, 321-first extension bar, 322-second extension bar, 323-third extension bar, 324-fourth extension bar, 325-fifth extension bar, 331-first extension groove, 332-second extension groove, 333-third extension groove, 334-fourth extension groove, 51-center reinforcement member, 52-cushion.

[0030] Implementation Example 1: Please see Figures 1 to 4 , an optical fiber ribbon cable with a composite component, comprising a loose tube 1, a plurality of optical fiber ribbons 2, a composite component 3, and an outer sheath 4, wherein the loose tube 1 comprises a tube body 12, a plurality of optical fiber ribbons 11, and the plurality of optical fiber ribbons 11 are distributed in a stacked manner in the inner cavity of the tube body 12, the composite component 3 is composed of a composite body 31 and a plurality of extension components 32, the composite body 31 has a body hole 30 inside, and the plurality of extension components 32 are distributed along the outer edge of the composite body 31, each extension component 32 is composed of a first extension strip 321, a second extension strip 322, a third extension strip 323, a fourth extension strip 324, and a fifth extension strip 325 that are sequentially spaced, a first extension groove 331 is provided between the first extension strip 321 and the second extension strip 322, a second extension groove 332 is provided between the second extension strip 322 and the third extension strip 323, and a third extension groove 333 is provided between the third extension strip 323 and the fourth extension strip 324, There is a fourth extension groove 334 between the fourth extension strip 324 and the fifth extension strip 325, the outer edges of all the extension strips in the extension component 32 are on the same circumference, the first extension groove to the fourth extension groove extend inward into the composite body 31, and the outermost edges of the longest extension strips of all the extension components 32 are on the same circumference; the optical fiber ribbon 2 is located in the extension groove, and the number of optical fibers in the optical fiber ribbon 2 in the same extension component 32 is not completely equal; the loose sleeve 1 is located in the body hole 30, and the outer sheath 4 is covered on the outside of the composite component 3.

[0031] The number of optical fibers in the optical fiber ribbon 2 reflects the type of the optical fiber ribbon. For example, if there are only 2 optical fibers, it is called a 2-fiber ribbon, if there are only 4 optical fibers, it is called a 4-fiber ribbon, if there are only 6 optical fibers, it is called a 6-fiber ribbon, if there are only 8 optical fibers, it is called an 8-fiber ribbon, if there are only 10 optical fibers, it is called a 10-fiber ribbon, and so on. The width of the cross section of optical fiber ribbons with different core numbers is different, which means that the extension groove space can be maximized when placed in extension grooves of different depths.

[0032] In the present application, the outer sheath 4 covering and the composite component 3 may also have at least one functional protective layer, such as a steel belt, an aluminum belt, a water-blocking belt, a fireproof belt, etc. and a composite thereof.

[0033] In the present application, the gap in the loose tube 1 can also be filled with water-blocking paste, water-blocking powder, water-blocking yarn, etc.

[0034] Implementation Example 2: Please see Figure 5 and Figure 6 , and refer to Figures 1 to 4 , an optical fiber ribbon cable with a composite component, which is basically the same as the implementation example 1, except that: the loose tube 1 is replaced by a reinforcing component 5, and the reinforcing component 5 is composed of a central reinforcing member 51 and a cushion layer 52, and the cushion layer 52 covers the central reinforcing member 51; of course, the reinforcing component 5 can also be composed of only the central reinforcing member 51.

[0035] Implementation Example 3: Please see Figures 7 to 9 , and refer to Figures 1 to 6 , an optical fiber ribbon cable with a composite component, which is basically the same as embodiment 2, except that: the first extension groove to the fourth extension groove only extend inward to the outer edge of the composite body 31.

[0036] Of course, in this embodiment, the loose tube 1 in the implementation example 1 can also be used to replace the reinforcing component 5.

[0037] In the present application, each extension component 32 is composed of a plurality of extension bars that are sequentially spaced and distributed, and extension grooves are formed between adjacent extension bars.

[0038] In the present application, the optical fiber ribbon 11 is composed of a plurality of optical fibers and an adhesive layer covering all the optical fibers as a whole or at their edges. The plurality of optical fibers are arranged in rows and adjacent ones are not in contact with each other.

[0039] In the present application, the optical fiber ribbon 2 and the optical fiber ribbon 11 have the same structure.

[0040] In the present application, the optical fiber ribbon 11 and the optical fiber ribbon 2 are preferably optical fiber ribbons in the prior art with a rectangular cross section.

[0041] In the present application, the composite component 3 is an integrated structure.

[0042] In the optical fiber ribbon cable with composite components described in the present application, the material of the outer sheath 4 is preferably plastic, preferably containing polyethylene or polypropylene or nylon or flame retardant.

[0043] In the optical fiber ribbon cable with composite components described in the present application, the material of the sleeve body 12 is preferably plastic, preferably modified polypropylene or polybutylene terephthalate.

[0044] In the optical fiber ribbon cable with a composite component described in the present application, the material of the composite component 3 is preferably plastic, formed by extrusion, and can also be a metal material or an alloy material.

[0045] In the optical fiber ribbon cable with composite components described in the present application, the material of the central strength member 51 is steel wire, copper wire, aluminum wire, glass fiber reinforced plastic, aramid yarn, aramid yarn bundle, glass fiber yarn bundle, twisted steel wire rope, or twisted aluminum wire rope.

[0046] In the optical fiber ribbon cable with composite components described in the present application, the material of the cushion layer 52 is plastic.

[0047] In the present application, the composite component 3 is extruded and formed by an extruder at one time. During the extrusion, the optical fiber ribbon 2, the loose tube 1 and / or the reinforcing component 5 are inserted into the corresponding slots of the extruder head. After passing through the extruder head, they are stretched together, enter the cooling water tank, and are continuously pulled to form an optical fiber ribbon cable.

[0048] Compared with the prior art, the present application makes full use of space by changing or increasing the depth of the extension groove through an extension component 32 that is integrated with the composite body 31 and extends outward, thereby realizing the placement of optical fiber ribbons with different numbers of cores in the same optical cable, and at the same time saving materials and space of the composite component 3, as well as materials outside the composite component 3.

[0049] In this application, if Figure 2 As shown, the number of optical fibers in the optical fiber ribbon 2 may not be exactly the same, for example Figure 4 In the embodiment, the depth of the first extension groove 331 is less than the depth of the second extension groove 332, the depth of the second extension groove 332 is equal to the depth of the third extension groove 333, and the depth of the first extension groove 331 is equal to the depth of the fourth extension groove 34. In this way, the same type of optical fiber ribbons can be placed in the first extension groove 331 and the fourth extension groove 34, such as 8-fiber ribbons, and the same type of optical fiber ribbons can be placed in the second extension groove 332 and the third extension groove 333, such as 12-fiber ribbons; and so on. In this way, optical fiber ribbons with different core numbers can be placed in the same extension component 32; and the extension component 32 is a part of a cylinder. In this way, due to the existence of the extension groove and the gap between adjacent extension components 32, the material of the composite component 3 is saved. At the same time, due to the reasonable use of space, the space outside the composite component 3 is saved, the diameter or size of the external material is significantly reduced, and various materials are consumed less and the cost is lower.

[0050] In the present application, the preferred mode is that in the same cable, the extension components 32 are the same, and may also be slightly different according to different requirements. For example, in the same extension component 32, the width of the extension groove may be different, so that multiple optical fiber ribbons can be placed in the extension grooves of different widths. Figure 2There is only one optical fiber ribbon in each extension groove. When there are multiple optical fiber ribbons in a single extension groove, the optical fiber ribbons are arranged in a parallel stacking manner. The so-called parallel stacking means that the optical fiber ribbons are stacked vertically in the extension groove, and are not arranged in a direction perpendicular to the center line connecting the composite component 3 and the extension component 32; of course, the extension grooves of different extension components 32 may be different according to the above description. Under the above inspiration, no creative labor is required.

[0051] In the present application, the number of extension grooves on the extension component 32 may be multiple or one.

[0052] The present invention has the following main beneficial technical effects: simple structure, easy manufacturing, optical fiber ribbons of different specifications can be placed in the same optical cable, meeting the requirements of users with different needs, compact structure, low cost, high space utilization, easy to take and place the optical fiber ribbon, and higher inspection and construction efficiency.

[0053] 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. An optical fiber ribbon cable with a composite component, comprising a loose tube, a plurality of optical fiber ribbons, a composite component, and an outer sheath, characterized in that: The extension grooves of different depths can be used to arrange optical fiber ribbons with different core numbers in the extension component of the composite component, and at the same time can save the material and space occupied by the composite component; the outer sheath covers the composite component, the loose tube is located in the center of the composite component, and the optical fiber ribbon is located in the extension groove.

2. The optical fiber ribbon cable with a composite component according to claim 1, characterized in that: The composite component is composed of a composite body and multiple extension components. The composite body has a body hole inside. The multiple extension components are distributed along the outer edge of the composite body. Each extension component is composed of multiple extension strips that are distributed in sequence and at intervals. Extension grooves are formed between adjacent extension strips. The outer edges of all extension strips in the extension component are on the same circumference, and the extension grooves extend inwardly into the composite body, or the extension grooves only extend inwardly to the outer edge of the composite body, or at least one extension groove extends inwardly into the composite body, and the outermost edges of the longest extension strips of all extension components are on the same circumference.

3. The optical fiber ribbon cable with a composite component according to claim 2, characterized in that: The optical fiber ribbon is located in the extension groove, and the number of optical fibers in the optical fiber ribbon in the same extension component is not completely equal; the loose tube is located in the body hole, and the outer sheath is covered on the outside of the composite component.

4. An optical fiber ribbon cable with a composite component according to claim 1 or claim 2 or claim 3, characterized in that: The loose tube is replaced by a reinforcement component, which consists of a central reinforcement member and a cushion layer, and the cushion layer covers the central reinforcement member.

5. The optical fiber ribbon cable with a composite component according to claim 4, characterized in that: The material of the central reinforcement member is steel wire, copper wire, aluminum wire, glass fiber reinforced plastic, aramid yarn, aramid yarn bundle, glass fiber yarn bundle, twisted steel wire rope, or twisted aluminum wire rope.

6. The optical fiber ribbon cable with a composite component according to claim 4, characterized in that: The material of the cushion is plastic.

7. An optical fiber ribbon cable with a composite component according to claim 1 or claim 2 or claim 3, characterized in that: Composite parts are one-piece structures.

8. An optical fiber ribbon cable with a composite component according to claim 1 or claim 2 or claim 3, characterized in that: The material of the outer sheath is plastic.

9. An optical fiber ribbon cable with a composite component according to claim 1 or claim 2 or claim 3, characterized in that: The loose tube includes a tube body and a plurality of optical fiber ribbons, and the plurality of optical fiber ribbons are distributed in the inner cavity of the tube body 12 in a stacked manner.

10. An optical fiber ribbon cable with a composite component according to claim 1 or claim 2 or claim 3, characterized in that: The material of the composite component is plastic or metal or alloy.

Images