Flame-retardant fire-resistant central tube type lead-in optical cable

Abstract

The utility model relates to the technical field of optical cables, in particular to a flame-retardant fire-resistant central tube type lead-in optical cable, which comprises a cable core, an optical cable main body, a fireproof assembly and an installation assembly, a central reinforcing core is fixedly arranged on the inner side of the cable core, a filling material is arranged between the central reinforcing core and the cable core, and a thermal insulation protective sleeve is fixedly arranged on the outer surface of the cable core. The outer surface of the thermal insulation protective sleeve is fixedly provided with an outer sheath, the outer surface of the outer sheath is provided with a plurality of caulking grooves, the fireproof assembly comprises a flame-retardant layer, and the flame-retardant layer is fixedly arranged on the outer surface of the thermal insulation protective sleeve. And the first clamping plate and the second clamping plate are fixed together through the bolts, and a plurality of optical cables are arranged and fixed together, so that the optical cables are prevented from being stacked together in a mess, and fire hazards are prevented from being caused.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of optical cable, concretely is fire -retardant fire -resistant central tube type lead -in optical cable. BACKGROUND

[0002] The optical cable is manufactured to meet the performance specifications of optics, mechanics or environment, and is a communication cable assembly using one or more optical fibers placed in a sheath as a transmission medium and can be used alone or in groups.

[0003] In the prior art, such as patent application number "CN201920439147.9" proposes an optical cable, including: central reinforcing part, framework, around the central reinforcing part and combined as one, a plurality of framework grooves extending along the length direction of the framework are distributed on the circumference of the framework, cable, respectively arranged in each framework groove, first sheath layer, covered on the periphery of the framework.

[0004] But in the above patent, the optical cable is a plastic sleeve oil filling plastic sheath structure, when the optical cable is burned off, the optical fiber in the optical cable will be scattered, which is not conducive to the subsequent maintenance of the optical cable, when multiple optical cables are used at the same time, the optical cables are easy to accumulate together, which can cause fire. UTILITY MODEL CONTENT

[0005] The utility model aims at providing fire -retardant fire -resistant central tube type lead -in optical cable to solve the problem in the above background art.

[0006] The purpose of the utility model can be realized by the following technical scheme:

[0007] The fire -retardant fire -resistant central tube type lead -in optical cable includes cable core, optical cable main part, fire -proof assembly and installation component, the inner side of the cable core is fixedly provided with central reinforcing core, and the central reinforcing core and the cable core are provided with filling material.

[0008] The outer surface of the cable core is fixedly provided with temperature -insulation protective sleeve, the outer surface of the temperature -insulation protective sleeve is fixedly provided with outer sheath, a plurality of embedding grooves are formed in the outer surface of the outer sheath, the fire -proof assembly includes fire -retardant layer, and the fire -retardant layer is fixedly arranged on the outer surface of the temperature -insulation protective sleeve.

[0009] Preferably, the outer surface of the fire -retardant layer is fixedly provided with heat -insulation layer, the outer surface of the heat -insulation layer is fixedly provided with fire -proof layer, the fire -proof layer is fixedly arranged on the inner side of the outer sheath, and the outer surface of the outer sheath and the inner side of the embedding groove are fixedly provided with wear -resisting layer.

[0010] Preferably, the installation component includes first clamping plate, the first clamping plate is arranged on the lower surface of the optical cable main part, and the upper surface of the optical cable main part is provided with second clamping plate.

[0011] Preferably, the first and second clamping plates are provided with a plurality of placing grooves on the opposite sides.

[0012] Preferably, the lower surface of the second clamping plate is fixedly provided with two limiting blocks, and the upper surface of the first clamping plate is provided with two limiting grooves, and the two limiting blocks are slidably arranged in the two limiting grooves.

[0013] Preferably, the first and second clamping plates are internally and threadedly provided with two bolts, and the two bolts are arranged at the two ends of the first and second clamping plates.

[0014] The utility model discloses the beneficial effect that:

[0015] The utility model discloses a fireproof assembly includes flame -retardant layer and heat -insulating layer, sets up a layer flame -retardant layer, a layer heat -insulating layer and a layer fire -retardant layer between temperature -insulated protective sheath and outer sheath, reduces the efficiency that optical cable is on fire, is beneficial to subsequent optical cable maintenance, because installation component includes first clamping plate and second clamping plate etc., and the first clamping plate and second clamping plate are fixed together through bolt, and the plurality of optical cables are carded and fixed together, prevent optical cable from being easy messy and accumulated together, prevent causing fire. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, for those skilled in the art, other drawings can also be obtained without creative labor according to these drawings.

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the cable core, temperature -insulated protective sheath structure schematic diagram of the utility model;

[0019] Figure 3 It is the limiting groove, bolt structure schematic diagram of the utility model;

[0020] Figure 4 It is the wear -resisting layer, fire -resistant layer structure schematic diagram of the utility model.

[0021] The reference signs in the drawings are as follows:

[0022] 1, cable core;2, temperature -insulated protective sheath;3, outer sheath;4, embedding groove;5, central reinforcing core;6, filler material;7, flame -retardant layer;8, heat -insulating layer;9, fire -resistant layer;10, wear -resisting layer;11, first clamping plate;12, second clamping plate;13, placing groove;14, limiting block;15, limiting groove;16, bolt;17, optical cable main body. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. 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 fall within the scope of the utility model.

[0024] The flame-retardant fire-resistant central tube type lead-in optical cable comprises a cable core 1, an optical cable main body 17, a fireproof assembly and a mounting assembly, the inner side of the cable core 1 is fixedly provided with a central reinforcing core 5, and the central reinforcing core 5 and the cable core 1 are provided with a filler material 6.

[0025] The outer surface of the cable core 1 is fixedly provided with a temperature insulation protective sleeve 2, the outer surface of the temperature insulation protective sleeve 2 is fixedly provided with an outer sheath 3, the outer surface of the outer sheath 3 is provided with a plurality of embedding grooves 4, the fireproof assembly comprises a flame-retardant layer 7, and the flame-retardant layer 7 is fixedly arranged on the outer surface of the temperature insulation protective sleeve 2.

[0026] As shown in Figure 1 , Figure 2 and Figure 4 , a temperature insulation protective sleeve 2 is arranged on the outer surface of the cable core 1, an outer sheath 3 is arranged on the outer surface of the temperature insulation protective sleeve 2, a plurality of embedding grooves 4 are formed on the outer surface of the outer sheath 3, and a central reinforcing core 5 and a filler material 6 are arranged in the cable core 1.

[0027] The outer surface of the flame-retardant layer 7 is fixedly provided with a heat insulation layer 8, the outer surface of the heat insulation layer 8 is fixedly provided with a fireproof layer 9, the fireproof layer 9 is fixedly arranged on the inner side of the outer sheath 3, and the outer surface of the outer sheath 3 and the inner side of the embedding grooves 4 are both fixedly provided with a wear-resistant layer 10.

[0028] As shown in Figure 1 Figure 2 and Figure 4 , a flame-retardant layer 7, a heat insulation layer 8 and a fireproof layer 9 are arranged between the temperature insulation protective sleeve 2 and the outer sheath 3, and a wear-resistant layer 10 is arranged on the outer surface of the outer sheath 3.

[0029] The mounting assembly comprises a first clamping plate 11, the first clamping plate 11 is arranged on the lower surface of the optical cable main body 17, and the upper surface of the optical cable main body 17 is provided with a second clamping plate 12.

[0030] As shown in Figure 1 and Figure 3 , the position of the optical cable main body 17 is fixed by cooperation of the first clamping plate 11 and the second clamping plate 12.

[0031] The opposite sides of the first clamping plate 11 and the second clamping plate 12 are both provided with a plurality of placing grooves 13, and the optical cable main body 17 is slidingly arranged in the placing grooves 13.

[0032] As Figure 1 And Figure 3 The optical cable body 17 is fixed inside the placing groove 13, and the position of the optical cable body 17 is fixed according to requirements.

[0033] The lower surface of the second clamping plate 12 is fixedly provided with two limiting blocks 14, the upper surface of the first clamping plate 11 is provided with two limiting grooves 15, and the two limiting blocks 14 are slidably arranged in the two limiting grooves 15.

[0034] As Figure 3 The two limiting blocks 14 are slidably arranged in the two limiting grooves 15, so that the second clamping plate 12 is fixed to the upper surface of the first clamping plate 11.

[0035] The first clamping plate 11 and the second clamping plate 12 are both threadedly provided with two bolts 16, and the two bolts 16 are arranged at two ends of the first clamping plate 11 and the second clamping plate 12.

[0036] As Figure 3 The position between the first clamping plate 11 and the second clamping plate 12 is fixed by the two bolts 16, so that the limiting block 14 is prevented from sliding out of the limiting groove 15.

[0037] The working principle of the flame-retardant fire-resistant central tube type lead-in optical cable is as follows:

[0038] The central reinforcing core 5 and the filler 6 are arranged in the cable core 1, the temperature insulation protective sleeve 2 is arranged on the outer surface of the cable core 1, the flame-retardant layer 7, the heat insulation layer 8 and the fireproof layer 9 are arranged between the temperature insulation protective sleeve 2 and the outer sheath 3, the wear-resistant layer 10 is arranged on the outer surface of the outer sheath 3, the optical cable body 17 is arranged in the placing groove 13, the limiting block 14 is slidably inserted into the limiting groove 15, and the bolt 16 is threadedly inserted between the first clamping plate 11 and the second clamping plate 12, so that the position of the optical cable body 17 is fixed by the first clamping plate 11 and the second clamping plate 12.

[0039] Compared with the related art, the flame-retardant fire-resistant central tube type lead-in optical cable has the following beneficial effects:

[0040] The fireproof assembly comprises the flame-retardant layer 7 and the heat insulation layer 8, the flame-retardant layer 7, the heat insulation layer 8 and the fireproof layer 9 are arranged between the temperature insulation protective sleeve 2 and the outer sheath 3, the efficiency of the optical cable fire is reduced, and the subsequent optical cable maintenance is facilitated.

[0041] The installation assembly comprises the first clamping plate 11 and the second clamping plate 12, the first clamping plate 11 and the second clamping plate 12 are fixed together by the bolt 16, a plurality of optical cables are combed and fixed together, the optical cables are prevented from being randomly stacked together, and a fire is prevented from being caused.

[0042] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A fire resistant, fire survivable riser cable comprising a cable core (1), a cable body (17), a fire protection assembly and a mounting assembly, characterised in that, The inner side of the cable core (1) is fixedly provided with a central reinforcing core (5), and a filling material (6) is arranged between the central reinforcing core (5) and the cable core (1); The outer surface of the cable core (1) is fixedly provided with a temperature insulation protective sleeve (2), the outer surface of the temperature insulation protective sleeve (2) is fixedly provided with an outer protective sleeve (3), the outer surface of the outer protective sleeve (3) is provided with a plurality of embedding grooves (4), the fireproof assembly comprises a flame-retardant layer (7), and the flame-retardant layer (7) is fixedly arranged on the outer surface of the temperature insulation protective sleeve (2).

2. The flame retardant, fire resistant, central tube riser cable of claim 1, wherein, The outer surface of the flame-retardant layer (7) is fixedly provided with a heat insulation layer (8), the outer surface of the heat insulation layer (8) is fixedly provided with a fireproof layer (9), the fireproof layer (9) is fixedly arranged on the inner side of the outer protective sleeve (3), and the outer surface of the outer protective sleeve (3) and the inner side of the embedding groove (4) are both fixedly provided with a wear-resistant layer (10).

3. The flame-retardant, fire-resistant, central tube riser cable of claim 1 wherein, The mounting assembly comprises a first clamping plate (11), and the first clamping plate (11) is arranged on the lower surface of the optical cable body (17); and the upper surface of the optical cable body (17) is provided with a second clamping plate (12).

4. The flame-retardant, fire-resistant, central tube-style riser cable of claim 3, wherein, The opposite sides of the first clamping plate (11) and the second clamping plate (12) are both provided with a plurality of placing grooves (13), and the optical cable body (17) is slidably arranged in the placing grooves (13).

5. The flame-retardant, fire-resistant, central tube-style drop cable of claim 4, wherein, The lower surface of the second clamping plate (12) is fixedly provided with two limiting blocks (14), the upper surface of the first clamping plate (11) is provided with two limiting grooves (15), and the two limiting blocks (14) are slidably arranged in the two limiting grooves (15), respectively.

6. The flame-retardant, fire-resistant buffer tube riser cable of claim 5, wherein, The first clamping plate (11) and the second clamping plate (12) are both internally and threadedly provided with two bolts (16), and the two bolts (16) are arranged at two ends of the first clamping plate (11) and the second clamping plate (12), respectively.

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