CN204462479U

CN204462479U - A kind of butterfly optical cable type fiber optic protection box

Info

Publication number: CN204462479U
Application number: CN201520150354.4U
Authority: CN
Inventors: 吴明
Original assignee: Nanjing Huamai Technology Co Ltd
Current assignee: Nanjing Huamai Technology Co Ltd
Priority date: 2015-03-17
Filing date: 2015-03-17
Publication date: 2015-07-08
Anticipated expiration: 2025-03-17

Abstract

The utility model discloses a kind of butterfly optical cable type fiber optic protection box; comprise base (1), buckle (3), upper cover (4); also comprise two reinforcement heat-shrink tube (2); described pair of reinforcement heat-shrink tube (2) is fixed on base (1) by buckle (3); upper cover (4) and base (1) fix, for covering two reinforcement heat-shrink tube (2).The beneficial effects of the utility model are, cost is existing to cheap, and except two reinforcement heat-shrink tube, miscellaneous part can reuse, and reduces cost, and data can not be affected, and decreases the decay because mechanical splice causes.

Description

A kind of butterfly optical cable type fiber optic protection box

Technical field

The utility model relates to a kind of butterfly optical cable type fiber optic protection box; for the optical cable welding protection box that a kind of communications industry scene adopts thermal welding mode to continue; this connector mainly applies to, in fiber entering household, FTTX network and communication machine room, belong to communication network device technical field.

Background technology

In the market based in the fiber-to-the-home field splicing of FTTH, be mainly divided into heat sealing machine to continue and mechanical splice, connect and cold joint referred to as heat respectively.

It is traditional continuation method that heat connects, and effect is fine, but needs heat sealing machine welding, to the corresponding high point of the requirement of workmen.

Just can construct as long as cold joint then joins simple optical fiber cutter, simple and fast, is applicable to various construction environment, very low to manual request, just can on dutyly operate through simple training, but there is the defects such as unstable properties, the life-span is short, field splicing success ratio is low in actual use in cold joint technology; And splicing point is a breakpoint all the time, the time has been grown may have hidden danger.

Now commercially for mainly prefabricated butterfly optical cable tail optical fiber and the prefabricated circular optical cable tail optical fiber of fiber to the home construction, tail optical fiber is drawn in by the pipe perforator imbedded in pipeline end of registering one's residence and does welded joint, cold junction, or from end of registering one's residence, tail optical fiber pipe perforator is introduced corridor case, with the tail optical fiber welding in case or cold joint.

The relative merits of prior art:

Prefabricated butterfly optical cable tail optical fiber: current is many, and cost is less, the optical cable other end makes cold junction or hot melt head; Cold junction, now through in a few years developing, engendering that decay becomes and affecting use greatly, and the problem that success ratio is always not high; Present operator uses cold junction as during emergency repair, make thermofusible after also needing to change cable afterwards; Hot melt head good reliability, but can not reuse.

Prefabricated circular optical cable tail optical fiber: bending radius is little, can not natural distortion, and tensile strength is good, is more than or equal to 100N (10min), but after continuing, the aramid fiber yarn of its inside is bad fixing, and the quality that aramid fiber yarn is fixed directly affects the tensile strength of optical cable.

Tube-through type is prefabricated into end type circular lead-in optical cable jumping fiber: mainly connector miniaturization, and separate knock-known Assembling, passes optical cable with pipe perforator clamping connector from pipeline, after be assembled into finished product use.Advantage does not need cold joint and welding, the jumping fiber that plant ground makes, and part field assembles, and data are more reliable also more cost-saving.

Summary of the invention

In order to solve in above-mentioned prior art existing problem, the purpose of this utility model is a kind of butterfly optical cable type fiber optic protection box of design, and product is simple, practical, all reusable, strong operability except heat-shrink tube.

In order to realize foregoing invention object, the utility model adopts following technical scheme:

A kind of butterfly optical cable type fiber optic protection box; comprise base (1), buckle (3), upper cover (4); also comprise two reinforcement heat-shrink tube (2); described pair of reinforcement heat-shrink tube (2) is fixed on base (1) by buckle (3); upper cover (4) and base (1) fix, for covering two reinforcement heat-shrink tube (2).

The beneficial effects of the utility model are: can obvious cost-saving and resource, increase work efficiency, and are new good solutions.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the utility model using state.

Fig. 2 is the structural representation of base.

Fig. 3 is the structural representation of two reinforcement heat-shrink tube.

Fig. 4 is the structural representation of buckle.

Fig. 5 is the structural representation of upper cover.

Fig. 6 is two reinforcement heat-shrink tube sectional views.

Fig. 7 is single reinforcement heat-shrink tube sectional view.

Fig. 8 is the sectional view after two reinforcement heat-shrink tube and butterfly optical cable pyrocondensation.

Wherein, 1 is base; 2 is two reinforcement heat-shrink tubes; 3 are buckles, 4 are upper covers, 5 is optical cables.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the butterfly optical cable type fiber optic protection box of the utility model embodiment, comprises base (1), two reinforcement heat-shrink tube (2), buckle (3), upper cover (4); Optical cable (5), by two reinforcement heat-shrink tube (2) pyrocondensation protection, loads base (1) successively, buckles buckle (3), covers upper cover (4).

2 prefabricated end tail optical fibers are got out before construction; wherein one is inserted in two reinforcement heat-shrink tube (2); the optical cable that stripping is good is put into heat sealing machine welding; after completing, taking-up puts the optical fiber that two reinforcement heat-shrink tube (2) protection has been melted; put into heating region pyrocondensation; after terminating, base (1) is put in taking-up after cooling, loads onto buckle (3) successively and compresses optical cable, then cover upper cover (4).

Consider the cross section feature of butterfly optical cable, the present embodiment changes tradition list reinforcement heat-shrink tube as shown in Figure 7 into two reinforcement heat-shrink tubes as shown in Figure 6, after ensureing pyrocondensation, optical fiber is all the time in centre position, such optical fiber would not bend, can not cause the disconnected fine and excessive problem that decays, and then impact uses; According to single reinforcement shrinkable tube structure, after pyrocondensation, bare fibre can offset by single reinforcement, cause local bending, easily cause disconnected fibre and decay excessive, particularly in the area that temperature range is large, cause disconnected fibre due to the reason of expanding with heat and contract with cold and decay excessive probability more greatly, Fig. 8 is two reinforcement heat-shrink tube and butterfly optical cable schematic cross-section after pyrocondensation.

In addition, it is as far as possible simple, convenient that the present embodiment is considered in repeatable utilization and construction, product is made upper and lower covers structure and be convenient to fastener, as long as hold of tight optical cable for one during dismounting, upper cover just can disassemble by another hand grip upper cover both sides, also can utilize the preformed groove on the both sides of upper and lower covers, carve with a word and upper cover is pried open; Consider intensity and the repeatability of metalwork, inner employing metal button member fastening optical cable, ensures that the stretching resistance of optical cable can be more than or equal to 50N (10min), fastener has also been reserved notch (Fig. 3 amplifies little figure) and be convenient to dismounting; Finished size is only (length) 80 × (wide), 8 × (height) 6, unit: mm, is suitable for the coiling of optical cable, is convenient to improve space availability ratio; When reusing, only need cut off optical cable, change a new two reinforcement heat-shrink tube, other part can continue to use, and has saved cost, more economically.

Although the utility model with preferred embodiment openly as above; but they are not for limiting the utility model, being anyly familiar with this those skilled in the art, not departing from the spirit and scope of the utility model; from when making various changes or retouch, belong to the protection domain of the utility model equally.What therefore protection domain of the present utility model should define with the claim of the application is as the criterion.

Claims

1. a butterfly optical cable type fiber optic protection box; comprise base (1), buckle (3), upper cover (4); it is characterized in that; also comprise two reinforcement heat-shrink tube (2); described pair of reinforcement heat-shrink tube (2) is fixed on base (1) by buckle (3); upper cover (4) and base (1) fix, for covering two reinforcement heat-shrink tube (2).