Four-core multimode marine optical cable

Abstract

The utility model discloses a four-core multimode marine optical cable, and relates to the technical field of optical cables. The optical cable comprises four optical fibers, reinforcing sleeves and an outer sheath, the outer parts of the four optical fibers are all wrapped with tight wrapping layers, the four optical fibers are all connected in preformed holes in the middle parts of the reinforcing sleeves in a penetrating manner, and the outer parts of the four optical fibers are sleeved with a plurality of reinforcing sleeves. According to the multi-core optical cable, the reinforcing sleeves are arranged to support the plurality of optical fibers in the polyester film layer, so that the defect of poor pressure resistance of the existing multi-core optical cable is avoided, that is, the plurality of reinforcing sleeves are utilized to support the plurality of optical fibers in the reinforcing sleeves when the multi-core optical cable is pressed, so that the optical fibers are prevented from being pressed and damaged due to mutual collision, and the service life of the multi-core optical cable is prolonged. And in order not to influence the bendability of the optical cable, the plurality of reinforcing sleeves are connected by adopting the butt joint pieces and the sleeve pieces, and the butt joint ends of the butt joint pieces are connected by adopting the ball heads, so that the plurality of reinforcing sleeves can be bent, and the bending of the optical cable is not influenced while the pressure resistance of the optical cable is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of optical cable, concretely relates to a four -core multimode marine optical cable. BACKGROUND

[0002] The optical cable belongs to one kind of cable, wherein the optical cable is a communication cable assembly using one or more optical fibers placed in a cladding sheath as transmission medium and can be used alone or in combination, and is widely applied in life, ship, construction and electronic industry;

[0003] The optical cable used in the field of ship is generally single -core or four -core, the four -core optical cable is more stable in transmission effect than single -core because of the increase of the number of optical fibers in it, but the four inner cores are easy to cause damage by mutual friction under pressure in the use process because of the core structure in it, and the utility model is proposed in view of this. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a four -core multimode marine optical cable.

[0005] To solve the above technical problems, the basic idea of the technical scheme of the utility model is:

[0006] A four -core multimode marine optical cable, including four optical fibers, reinforcing sleeve and outer sheath, the outside of four optical fibers is wrapped with tight package layer, four optical fibers are all connected in the reserved hole of the middle part of reinforcing sleeve, a plurality of reinforcing sleeves are provided outside four optical fibers, the front and rear ends of each reinforcing sleeve are respectively provided with butt joint and sleeve, the butt joint end of the butt joint of sleeve is provided with a ball head installation groove body, and the ball head is fixed with the top of butt joint;

[0007] The middle part of each reinforcing sleeve is also provided with a plurality of weight reduction holes, and the inside of each weight reduction hole is fixed with an inner support ring;

[0008] The outside of a plurality of reinforcing sleeves and four optical fibers is arranged in the inside of the same polyester film layer, and the outer sheath is arranged outside the polyester film layer.

[0009] Optionally, the outside of the polyester film layer is provided with an inner sheath, the inner side and the outer side of the inner sheath are provided with mica tape layers, the mica tape layer on the inner side is attached to the polyester film layer, and the outside of the mica tape layer on the outer side is provided with a steel belt protection layer.

[0010] Optionally, the outside of the steel belt protection layer is provided with an auxiliary sheath, the inner surface and the outer surface of the auxiliary sheath are coated with a capsaicin layer, and the surface of the capsaicin layer on the outer surface is in contact with the inner side of the outer sheath.

[0011] Optionally, the auxiliary sheath is made of LSZH, the outer sheath is made of TPU, and the surface of the outer sheath is coated with.

[0012] Optionally, the surface of the outer sheath is annularly arrayed with a plurality of pre-grinding blocks, and the top of each pre-grinding block is fixed with a wear-resistant ring.

[0013] After the above technical scheme is adopted, the utility model has the following beneficial effects compared with the prior art, of course, any product implementing the utility model does not necessarily need to simultaneously achieve all the advantages described below:

[0014] The utility model discloses a reinforcing sleeve plays the role of supporting the multiple optical fibers inside the polyester film layer, avoids the poor pressure resistance of the prior art multi-core optical cable, i.e. when being pressed, the multiple reinforcing sleeves support the multiple optical fibers inside the reinforcing sleeve, avoid mutual interference and damage under pressure, and in order to not affect the flexibility of the optical cable, the multiple reinforcing sleeves are connected by the butt joint and the sleeve, and the butt joint end is connected by the ball head, so that the multiple reinforcing sleeves can be bent, thereby improving the pressure resistance of the optical cable without affecting its flexibility, and in order to reduce the weight of the reinforcing sleeve, multiple lightening holes are designed, thereby reducing the weight of the optical cable and facilitating the subsequent worker layout.

[0015] The specific embodiments of the utility model will be described in further detail below with reference to the drawings. DRAWINGS

[0016] The drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0017] In the drawings:

[0018] Figure 1 It is a front view of the structure of the utility model;

[0019] Figure 2 It is a combined part structure diagram of the reinforcing sleeve, the lightening hole and the inner support ring in the utility model;

[0020] Figure 3 It is a combined part structure side view diagram of the multiple reinforcing sleeves and the tight layer in the utility model;

[0021] Figure 4 It is a combined part structure diagram of the pre-grinding block and the wear-resistant ring in the utility model;

[0022] Figure 5 It is a part structure diagram of A in the utility model; Figure 1

[0023] Figure 6 It is a part structure diagram of A in the utility model; Figure 1 ​Figure 2 is a schematic view of the structure of the B part in Figure 1.

[0024] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0025] 1, optical fiber; 2, tight package layer; 3, reinforcing sleeve; 4, butt joint; 5, sleeve; 6, ball head; 7, weight reduction hole; 8, inner support ring; 9, polyester film layer; 10, inner sheath; 11, mica tape layer; 12, steel belt protection layer; 13, auxiliary sheath; 14, capsaicin layer; 15, pre-grinding block; 16, wear-resistant ring; 17, outer sheath.

[0026] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] The utility model will be further described in detail in combination with the drawings.

[0028] Please refer to Figures 1 to 6 The utility model provides a kind of technical scheme: a kind of four-core multimode marine optical cable, including four optical fibers 1, reinforcing sleeve 3 and outer sheath 17, the outside of four optical fibers 1 is wrapped with tight package layer 2, four optical fibers 1 are all connected in the reserved hole of the middle part of reinforcing sleeve 3, a plurality of reinforcing sleeve 3 is sheathed outside four optical fibers 1, each reinforcing sleeve 3 front and rear two ends are respectively provided with butt joint 4 and sleeve 5, the butt joint end of butt joint 4 of sleeve 5 is provided with the groove body for ball head 6 installation, ball head 6 is fixed with the top of butt joint 4;

[0029] The middle part of each reinforcing sleeve 3 is also provided with a plurality of weight reduction holes 7, and the inside of each weight reduction hole 7 is fixed with an inner support ring 8.

[0030] A plurality of reinforcing sleeve 3 and the outside of four optical fibers 1 are arranged in the inside of the same polyester film layer 9, and the outer sheath 17 is arranged outside the polyester film layer 9.Considering that the four-core optical cable is more stable in transmission than single-core because of the increase of the number of optical fibers 1 inside, but during use, due to the core structure inside, it is easy to cause damage to the four inner cores when subjected to pressure, the utility model patent plays a supporting role on the plurality of optical fibers 1 inside the polyester film layer 9 by setting the reinforcing sleeve 3, avoiding the poor pressure resistance of the existing multi-core optical cable, that is, when subjected to pressure, the plurality of reinforcing sleeves 3 will support the plurality of optical fibers 1 inside the reinforcing sleeve 3, avoiding mutual friction and damage under pressure, and in order not to affect the flexibility of the optical cable, the butt joint 4 and the sleeve 5 are connected between the plurality of reinforcing sleeves 3, and the butt joint end of the butt joint 4 is connected with the ball head 6, so that the plurality of reinforcing sleeves 3 can be bent, thereby improving the pressure resistance of the optical cable without affecting its flexibility.

[0031] The outer part of the polyester film layer 9 is provided with an inner sheath 10, the inner side and the outer side of the inner sheath 10 are provided with mica tape layers 11, the mica tape layer 11 on the inner side is attached to the polyurethane film layer, the outer part of the mica tape layer 11 on the outer side is provided with a steel tape protection layer 12, the steel tape protection layer 12 plays a role of anti-tension for the optical cable, and the mica tape layer 11 plays a role of fire resistance and insulation for the optical cable.

[0032] The outer part of the steel tape protection layer 12 is provided with an auxiliary sheath 13, the inner surface and the outer surface of the auxiliary sheath 13 are coated with a capsaicin layer 14, and the surface of the capsaicin layer 14 on the outer surface is in contact with the inner side of the outer sheath 17; considering that there is a situation that mice gnaw the optical cable in the cabin environment, the device prevents the mice from gnawing the optical cable through the capsaicin layer 14.

[0033] The material of the auxiliary sheath 13 is LSZH, and the material of the outer sheath 17 is TPU; the auxiliary sheath 13 of the optical cable is made of halogen-free LSZH material, so that a large amount of smoke is not released when heated and combusted, thereby avoiding the generation of harmful smoke in the cabin environment without ventilation, which affects the health of the crew; the outer sheath 17 is made of TPU material, which has multiple excellent physical properties, is an excellent sheath material for the optical cable, and also has antibacterial properties, so that the optical cable is not affected by mold even in a humid cabin environment.

[0034] The surface of the outer sheath 17 is annularly arranged with a plurality of pre-wear blocks 15, and the top of each pre-wear block 15 is fixed with a wear-resistant ring 16; the pre-wear block 15 is arranged to protect the surface of the outer sheath 17 of the device, so that the pre-wear block 15 and the wear-resistant ring 16 on the surface of the pre-wear block 15 are worn out first when rubbing, thereby prolonging the service life of the outer sheath 17.

[0035] The utility model is not limited to the above-mentioned embodiment, any person should know that the structural change made under the inspiration of the utility model, any technical scheme with the same or similar technical scheme of the utility model falls into the protection scope of the utility model. The utility model is not described in detail, and the technical, shape and structure parts are all known technology.

Claims

1. A four-fiber multimode shipboard optical cable comprising four optical fibers (1), a strength jacket (3) and an outer jacket (17), characterized in that, The outer part of the four optical fibers (1) is wrapped with a tight package layer (2), the four optical fibers (1) are connected through the reserved holes in the middle part of the reinforcing sleeve (3), a plurality of reinforcing sleeves (3) are sleeved outside the four optical fibers (1), the front and rear ends of each reinforcing sleeve (3) are respectively provided with a butt joint piece (4) and a sleeve piece (5), a mounting groove for a ball head (6) is formed in the butt joint end of the butt joint piece (4) of the sleeve piece (5), and the ball head (6) is fixed to the top of the butt joint piece (4); A plurality of weight reduction holes (7) are formed in the middle part of each reinforcing sleeve (3), and an inner support ring (8) is fixed in each weight reduction hole (7); The plurality of reinforcing sleeves (3) and the four optical fibers (1) are arranged in the same polyester film layer (9), and an outer protective sleeve (17) is arranged outside the polyester film layer (9).

2. A four-fiber multimode shipboard optical cable according to claim 1, characterized in that, The outer part of the polyester film layer (9) is provided with an inner protective sleeve (10), and the inner side and the outer side of the inner protective sleeve (10) are provided with mica tape layers (11), and the mica tape layer (11) on the inner side is attached to the polyurethane film layer, and the outer part of the mica tape layer (11) on the outer side is provided with a steel belt protection layer (12).

3. A four-fiber multi-mode shipboard optical cable according to claim 2, characterized in that, The outer part of the steel belt protection layer (12) is provided with an auxiliary protective sleeve (13), and the inner surface and the outer surface of the auxiliary protective sleeve (13) are coated with a capsaicin layer (14), and the surface of the capsaicin layer (14) on the outer surface is in contact with the inner side of the outer protective sleeve (17).

4. A four-fiber multi-mode shipboard optical cable according to claim 3, characterized in that, The material of the auxiliary protective sleeve (13) is LSZH, and the material of the outer protective sleeve (17) is TPU, and the surface of the outer protective sleeve (17) is also coated with.

5. A four-core multi-mode shipboard optical cable according to claim 1, characterized in that, The surface of the outer protective sleeve (17) is annularly arranged with a plurality of pre-grinding blocks (15), and the top of each pre-grinding block (15) is fixed with a wear-resistant ring (16).

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