Easily-maintained optical cable

Abstract

The utility model provides an easy-to-maintain optical cable, and solves the technical problem that the optical cable is difficult to maintain after being soaked in water. The easy-to-maintain optical cable comprises a sheath, an optical fiber, a positioning sheet and an identification holding part, the optical fiber is located in the sheath, the positioning sheet is fixed in at least one side wall of the sheath, and the identification holding part is fixed on the outer wall of the sheath; the part, located between the positioning piece and the mark holding part, of the protective sleeve is a cutting part, a cutting gap is formed in the positioning piece, the cutting part and the cutting gap extend in the thickness direction of the side wall of the protective sleeve, and one side of the positioning piece is connected with the cutting part and the cutting gap. The sheath is sequentially cut along the cutting part, the side, facing the cutting part, of the positioning piece and the cutting gap, the interior of the sheath can be maintained by opening a skylight on the sheath, and after maintenance is completed, glue is coated along the cutting gap, the side, facing the cutting part, of the positioning piece and the cutting part, the sheath is closed, and maintenance is carried out on the premise that the optical fiber is not damaged. The tension of the optical cable is not affected, and the optical cable does not need to be laid again.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of optical cable, especially to an easy maintenance type optical cable. BACKGROUND

[0002] At present, with the complexity of optical cable wiring environment, when the optical cable is laid and constructed, the surface is punctured by sharp objects, resulting in partial water leakage of the optical cable. After the optical fiber is soaked in water for a long time, the glass surface adsorbs water vapor, and then a hydrolysis reaction occurs slowly, so that the silicon-oxygen bond in the original network-Si-O-Si- is broken, the bridge oxygen becomes non-bridge oxygen, resulting in glass cracks, and the cracks continue to grow, so the optical fiber is extremely easy to break. In addition, the presence of OH radicals also increases the absorption loss of the optical fiber to light, resulting in a sharp increase in 1150nm band line loss. Moreover, in winter, water freezing and expansion can damage the optical fiber.

[0003] The applicant finds that the prior art at least has the following technical problems: the existing optical cable is extremely difficult to maintain after being soaked in water, it is not easy to quickly realize precise positioning of the water leakage section, visual management cannot be achieved, abnormalities cannot be found in the early stage, resulting in large maintenance difficulty in the later stage, and the optical cable itself is damaged when maintenance is performed, which greatly reduces the service life of the optical cable. UTILITY MODEL CONTENT

[0004] The utility model discloses an easy maintenance type optical cable to solve the technical problem that the existing optical cable is difficult to maintain after being soaked in water. The preferred technical solutions in the many technical solutions provided by the utility model can produce many technical effects, which are described below.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The easy maintenance type optical cable provided by the utility model comprises a sheath, an optical fiber, a positioning sheet and an identification holding part.

[0007] The optical fiber is located in the sheath, the positioning sheet is fixed in at least one side wall of the sheath, and the identification holding part is fixed on the outer wall of the sheath.

[0008] The part of the sheath between the positioning sheet and the identification holding part is a cutting part, the positioning sheet is provided with a cutting gap, the cutting part and the cutting gap extend along the thickness direction of the side wall of the sheath, and one side of the positioning sheet is connected with the cutting part and the cutting gap.

[0009] Preferably, a water-blocking reinforcing element is arranged in the sheath; the water-blocking reinforcing element comprises water-blocking aramid yarn or water-blocking glass yarn.

[0010] Preferably, a water-developing part is arranged in the sheath; the water-developing part comprises anhydrous copper sulfate powder.

[0011] Preferably, the positioning piece comprises a first positioning piece and a second positioning piece, wherein:

[0012] The first positioning piece and the second positioning piece are located in the same side wall of the sheath, and the cutting gap is located between the first positioning piece and the second positioning piece.

[0013] Preferably, the identification holding part comprises a first identification holding part and a second identification holding part, wherein:

[0014] The first identification holding part and the second identification holding part are fixed to the same side outer wall of the sheath, wherein one of the cutting parts is located between the end of the first positioning piece and the first identification holding part, and the other of the cutting parts is located between the end of the second positioning piece and the second identification holding part.

[0015] Preferably, the first positioning piece and the second positioning piece each comprise a transverse piece and a longitudinal piece, wherein:

[0016] The transverse piece is fixed to one end of the longitudinal piece, and the two are in an L-shaped structure; the cutting part is located between the transverse piece and the identification holding part.

[0017] Preferably, the first positioning piece and the second positioning piece are symmetrically arranged about the cutting gap.

[0018] Preferably, the identification holding part is in an L-shaped structure, one segment of the identification holding part is arranged in parallel with the transverse piece, and the cutting part is located between the two.

[0019] Preferably, the positioning piece is a metal piece.

[0020] The utility model also provides a kind of maintenance method of optical cable, using above-mentioned easily maintained optical cable, the maintenance method comprises:

[0021] In the optical cable section needing maintenance, the sheath is successively cut along the cutting part, the side of the positioning piece towards the cutting part, the cutting gap, and the sheath is skylighted;

[0022] After the internal maintenance of optical cable is completed, the sheath is adhered and closed by coating glue along the cutting gap, the side of the positioning piece towards the cutting part and the cutting part.

[0023] Preferably, after the internal maintenance of optical cable is completed, the sheath is adhered and closed by coating glue along the cutting gap, the side of the positioning piece towards the cutting part and the cutting part.

[0024] Preferably, the side wall of the sheath is cut linearly along the cutting gap until the sheath is completely cut off.

[0025] Preferably, when the glue is applied, the glue is applied to the cutting surface of the sheath and the side of the positioning sheet facing the cutting part.

[0026] Preferably, a water-blocking reinforcing member is arranged in the sheath; a water-activated color-changing part is arranged in the sheath.

[0027] The maintenance method further comprises:

[0028] When the inside of the optical cable is maintained, the water-blocking reinforcing member after being cleaned of water, the water-activated color-changing part after being cleaned of color change, a new water-blocking reinforcing member and a new water-activated color-changing part are replaced.

[0029] Compared with the prior art, the easily-maintained optical cable has the following beneficial effects: the easily-maintained optical cable does not need to cut the optical cable, the sheath is cut along the cutting part, the side of the positioning sheet facing the cutting part, and the cutting gap in sequence, the inside of the sheath is maintained by opening a skylight in the sheath, after maintenance, the sheath is adhered and closed by applying glue along the cutting gap, the side of the positioning sheet facing the cutting part, and the cutting part, the glue is prevented from entering the inside of the sheath, the positioning sheet and the identification holding part facilitate positioning of the cutting position, the cutting position is neat, precise maintenance is achieved, the optical cable reinforcing member and the optical fiber are not damaged during maintenance, the tension of the optical cable is not affected, and the optical cable does not need to be re-laid. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 is an internal structure schematic diagram of the easily-maintained optical cable;

[0032] Figure 2 is a top view of the internal structure of the easily-maintained optical cable;

[0033] Figure 3 is a structure schematic diagram of the cutting side of the sheath.

[0034] In the figure, 1 is a sheath; 11 is a cutting part; 12 is a cutting gap; 2 is an optical fiber; 3 is a positioning sheet; 31 is a first positioning sheet; 311 is a transverse sheet; 312 is a longitudinal sheet; 32 is a second positioning sheet; 4 is an identification holding part; 41 is a first identification holding part; 42 is a second identification holding part; 5 is a water-blocking reinforcing member; 6 is a water-activated color-changing part. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope protected by the utility model.

[0036] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0037] The utility model embodiment provides a kind of easily maintained optical cable, it is convenient to position cutting position, make cutting position neat, guarantee the product quality after optical cable maintenance.

[0038] The technical scheme provided by the utility model will be described in more detail below. Figures 1-3 The technical scheme provided by the utility model will be described in more detail below.

[0039] Embodiment 1:

[0040] As Figures 1-3 Indicated, the easily maintained optical cable provided by the utility model, including sheath 1, optical fiber 12, positioning sheet 3 and identification grip part, wherein: optical fiber 12 is located in sheath 1, positioning sheet 3 is fixed in at least one side wall of sheath 1, and identification grip part 4 is fixed on the outer wall of sheath 1;The part of sheath 1 between positioning sheet 3 and identification grip part is cutting part 11, cutting gap 12 is provided on positioning sheet 3, cutting part 11, cutting gap 12 extends along the thickness direction of the side wall of sheath 1, and one side of positioning sheet 3 is connected with cutting part 11 and cutting gap 12.

[0041] Among them, the cross-sectional shape of sheath 1 is rectangle or other shape, but it should be guaranteed that the side of the installation positioning member of sheath 1 is straight line side, to facilitate installation positioning member, convenient cutting.

[0042] Sheath 1 is made of PA or PVC transparent material, to facilitate observation the state inside optical cable.

[0043] Specifically, the positioning sheet 3 can be a metal sheet such as an iron sheet to ensure structural strength and certain support and facilitate coating of adhesive.

[0044] The easy-to-repair optical cable does not need to cut the optical cable, and the sheath 1 is cut along the cutting part 11, the side of the positioning sheet 3 facing the cutting part 11, and the cutting gap 12 in sequence, the inside of the sheath 1 is repaired by opening a skylight in the sheath 1, and after repair, the sheath 1 is adhered and closed by coating glue along the cutting gap 12, the side of the positioning sheet 3 facing the cutting part 11, and the cutting part 11, to prevent glue from entering the inside of the sheath 1, and the positioning sheet 3 and the identification holding part facilitate positioning of the cutting position and make the cutting position neat, thereby ensuring product quality after repair of the optical cable. Precise repair is achieved without damaging the optical cable reinforcing member and the optical fiber 12, so that the tension of the optical cable is not affected and the optical cable does not need to be re-laid.

[0045] Referring to Figure 3 When the sheath 1 is adhered after repair, the removed part of the sheath 1 forms an inlaid structure with the positioning sheet 3, the removed part of the sheath 1 is easily inlaid into the positioning sheet 3, and the surface is flat after being adhered with glue, without protrusions or depressions.

[0046] As an optional embodiment, referring to Figure 1 and Figure 2 , the sheath 1 is provided with a water-blocking reinforcing member 5; the water-blocking reinforcing member 5 includes water-blocking aramid yarn or water-blocking glass yarn.

[0047] The water-blocking reinforcing member 5 inside the optical cable is water-blocking aramid yarn, which can provide tension to the optical cable, and the water-blocking powder on the surface of the water-blocking aramid yarn can also play a role in longitudinal water-blocking of the optical cable.

[0048] As an optional embodiment, referring to Figure 1 and Figure 2 , the sheath 1 is provided with a water-seeing color part 6; the water-seeing color part 6 includes anhydrous copper sulfate powder.

[0049] Some white anhydrous copper sulfate powder is filled in the optical cable, and when the anhydrous copper sulfate comes into contact with water, the aqueous solution thereof is weakly alkaline and turns blue when it comes into contact with water; based on this principle, it can be accurately positioned which part of the sheath 1 of the optical cable is broken to cause water to leak into the inside of the optical cable, and the length of the water leakage section can be accurately positioned.

[0050] As an optional embodiment, referring to Figures 1-3 , the positioning sheet 3 includes a first positioning sheet 31 and a second positioning sheet 32, wherein: the first positioning sheet 31 and the second positioning sheet 32 are located in the same side wall of the sheath 1, and the cutting gap 12 is located between the first positioning sheet 31 and the second positioning sheet 32. This structure facilitates the formation of the cutting gap 12 and facilitates the cutting and adhesion of the sheath 1.

[0051] The positioning piece 3 has two functions. One is to cooperate with the marking holding part 4 to position the cutting part 11, so that the maintenance personnel can cut the sheath 1 along the positioning piece, the cutting part 11 and the cutting gap to open the sheath 1 and maintain the internal optical cable. The other is to facilitate the re-closing of the sheath 1 after maintenance, and to apply glue along the cutting gap 12, the side of the positioning piece 3 facing the cutting part 11 and the cutting part 11, so as to facilitate the regular application of glue, prevent the cutting part 11 from being uneven, and prevent the glue from overflowing or entering the internal sheath 1.

[0052] As an optional embodiment, referring to Figures 1-3 As shown in the figure, the marking holding part 4 includes a first marking holding part 41 and a second marking holding part 42, wherein the first marking holding part 41 and the second marking holding part 42 are fixed to the same side of the outer wall of the sheath 1, and the cutting part 11 is located between the end of the first positioning piece 31 and the first marking holding part 41, and the cutting part 11 is located between the end of the second positioning piece 32 and the second marking holding part 42.

[0053] The marking holding part has two functions. One is to mark the position of the positioning piece 3, so that the maintenance personnel can cut the sheath 1 along the marking holding part and the cutting part 11 at the end of the positioning piece 3. The other is to facilitate the construction personnel to pull out the part of the sheath 1 after cutting on one side of the positioning piece 3.

[0054] Specifically, the height of the marking holding part is 0.5-1.0mm, and the width is 0.4-0.8mm.

[0055] As an optional embodiment, referring to Figure 3 As shown in the figure, the first positioning piece 31 and the second positioning piece 32 each include a transverse piece 311 and a longitudinal piece 312, wherein the transverse piece 311 is fixed to one end of the longitudinal piece 312, and the two are in an L-shaped structure; the cutting part 11 is located between the transverse piece 311 and the marking holding part. The first positioning piece 31 and the second positioning piece 32 are symmetrically arranged about the cutting gap 12. The above structure facilitates accurate positioning of the position of the cutting part 11 and forms a regular cutting line.

[0056] As an optional embodiment, referring to Figure 1 and Figure 3 As shown in the figure, the marking holding part 4 has an L-shaped structure, and one segment of the marking holding part is arranged in parallel with the transverse piece 311, and the cutting part 11 is located between the two.

[0057] The above structure facilitates accurate positioning of the position of the cutting part 11 and forms a regular cutting line.

[0058] Figure 1 and Figure 3 The thick dashed line in the figure indicates the cutting path. Referring to Figure 1 and Figure 3As shown, when the target cable segment needs to be repaired, the cutting part 11 between the identification holding part and the positioning piece, the side of the positioning piece facing the identification holding part (the side away from the optical fiber 12), the cutting gap cutting sheath 1, tearing the sheath 1, holding the identification holding part, taking out the outside part of the cut sheath 1 until the inside of the cable is exposed, then cleaning the inside of the anhydrous copper sulfate and the wet water-blocking reinforcing member 5, adding some new water-blocking reinforcing member 5 and some anhydrous copper sulfate powder, then combining the skylight sheath 1, using hot melt glue and a hot melt gun to seal and bond during the combination, that is, coating the glue at the dashed line position (the original cutting line position) in the figure, achieving precise repair and not damaging the cable reinforcing member and the optical fiber 12, so that the tensile force of the cable is not affected, and the cable does not need to be re-laid.

[0059] Embodiment 2:

[0060] The embodiment provides a cable repair method, which uses the above-mentioned easy-to-repair cable, and the repair method comprises the following steps: cutting the sheath 1 along the cutting part 11, the side of the positioning piece 3 facing the cutting part 11, and the cutting gap 12 in sequence to open the skylight of the sheath 1; after the internal repair of the cable is completed, coating the glue along the cutting gap 12, the side of the positioning piece 3 facing the cutting part 11, and the cutting part 11 to adhere and close the sheath 1.

[0061] The cable repair method has the advantages that precise repair can be achieved, the cable reinforcing member and the optical fiber 12 are not damaged, the tensile force of the cable is not affected, and the cable does not need to be re-laid.

[0062] When the hot melt glue is used for bonding, the glue does not flow into the inside of the cable because the two sides of the positioning piece 3 facing the identification holding part are bonded with the torn sheath 1. Since the torn sheath 1 is a rectangular sheath 1, the remaining sheath 1 of the positioning piece can form an inlaid structure, and the surface is flat after being bonded with the glue, without the phenomenon of protrusion or depression.

[0063] As an optional implementation, referring to Figs. 1 and 2, Figure 2 and Figure 3 As shown, the sheath 1 is cut along the cutting gap 12 until the side wall of the sheath 1 is completely cut off, so that a cut with a regular structure is formed, and subsequent bonding is facilitated.

[0064] As an optional implementation, when the glue is coated, the glue is coated on the cutting surface of the sheath 1 and the side of the positioning piece facing the cutting part 11. This facilitates the coating of the glue and prevents the glue from overflowing or entering the inside of the sheath 1.

[0065] As an optional implementation, the water-blocking reinforcing member 5 is arranged in the sheath 1; the water-coloring part 6 is arranged in the sheath 1; the maintenance method further comprises: cleaning the water-absorbed water-blocking reinforcing member 5 and the color-changed water-coloring part 6, and replacing the new water-blocking reinforcing member 5 and the water-coloring part 6 when the internal maintenance of the optical cable is performed.

[0066] The production method of the optical cable is as follows: the optical fiber 12 and the water-blocking aramid yarn are placed on a pay-off rack, wherein the pay-off tension of the optical fiber 12 is 100 g, and the pay-off tension of the water-blocking aramid yarn is 300 g; two L-shaped iron sheets are horizontally placed into the inner film; the optical fiber 12 and the water-blocking aramid yarn are passed through a powdering machine and are inserted into the inner film of a machine head; meanwhile, the powdering machine is opened to coat the reinforcing member and the optical fiber 12 with a layer of copper sulfate powder; the machine head is opened to extrude the PA or PVC transparent sheath 1; the temperature of the extruder is 170℃, 175℃, 180℃, 185℃, 180℃, 175℃, and 170℃; and then the optical cable is drawn to a traction machine through a water tank, so as to be formed.

[0067] In the description of the specification, a specific feature, structure or characteristic can be combined in any one or more embodiments or examples in a suitable manner.

[0068] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In the description of the specification, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific feature, structure, material or characteristic described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0069] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled in the technical field can easily think of the change or replacement within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. An easy-to-maintain optical cable, characterized in that, Includes a sheath, optical fiber, positioning plate, and marking grip, wherein: The optical fiber is located inside the sheath, the positioning piece is fixed inside at least one side wall of the sheath, and the marking grip is fixed to the outer wall of the sheath; The portion of the sheath located between the positioning piece and the marking grip portion is a cutting portion. The positioning piece is provided with a cutting gap. The cutting portion and the cutting gap extend along the thickness direction of the side wall of the sheath. One side of the positioning piece connects the cutting portion and the cutting gap.

2. The easy-to-maintain optical cable according to claim 1, characterized in that, The sheath is provided with a water-blocking reinforcement; the water-blocking reinforcement includes water-blocking aramid yarn or water-blocking glass yarn.

3. The easy-to-maintain optical cable according to claim 1, characterized in that, The sheath is provided with a water-reactive color-developing part; the water-reactive color-developing part includes anhydrous copper sulfate powder.

4. The easy-to-maintain optical cable according to claim 1, characterized in that, The positioning piece includes a first positioning piece and a second positioning piece, wherein: The first positioning piece and the second positioning piece are located in the same side wall of the sheath, and the cutting gap is located between the first positioning piece and the second positioning piece.

5. The easy-to-maintain optical cable according to claim 4, characterized in that, The label holding part includes a first label holding part and a second label holding part, wherein: The first marking grip portion and the second marking grip portion are fixed to the outer wall of the sheath on the same side, wherein one of the cutting portions is located between the end of the first positioning piece and the first marking grip portion, and the other cutting portion is located between the end of the second positioning piece and the second marking grip portion.

6. The easy-to-maintain optical cable according to claim 4, characterized in that, Both the first positioning piece and the second positioning piece include a transverse piece and a longitudinal piece, wherein: The transverse piece is fixed to one end of the longitudinal piece, and the two form an L-shaped structure; the cutting part is located between the transverse piece and the marking gripping part.

7. The easy-to-maintain optical cable according to claim 6, characterized in that, The first positioning piece and the second positioning piece are symmetrically arranged with respect to the cutting gap.

8. The easy-to-maintain optical cable according to claim 6, characterized in that, The marking grip portion has an L-shaped structure, with one section of the marking grip portion arranged parallel to the transverse piece, and the cutting portion located between the two.

9. The easy-to-maintain optical cable according to claim 1, characterized in that, The positioning piece is a metal piece.

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