CN203480091U

CN203480091U - Micro pipe joint for micro cable protection

Info

Publication number: CN203480091U
Application number: CN201320532664.3U
Authority: CN
Inventors: 陈士文
Original assignee: HEBEI QIANYUAN COMMUNICATION EQUIPMENT CO Ltd
Current assignee: HEBEI QIANYUAN COMMUNICATION EQUIPMENT CO Ltd
Priority date: 2013-08-29
Filing date: 2013-08-29
Publication date: 2014-03-12
Anticipated expiration: 2023-08-29

Abstract

The utility model relates to a micro pipe joint for micro cable protection, and belongs to the technical field of optical cable equipment. An inner sleeve in the micro pipe joint is of a hollow symmetrical structure; the outer surfaces of two ends of the inner sleeve are provided with threads; inner holes are provided with steps; two sealing rings are installed in the inner holes at the two ends of the inner sleeve and are fixed through the steps; two gaskets and two spring sheets are respectively compacted on the two sealing rings and are compacted and fixed through two transparent members; the transparent members are internally provided with steps for installing the spring sheets and the gaskets; the inner surfaces of the internal ports of the transparent members are provided with threads for mutual screwing with the threads at the outer surfaces of the two ends of the inner sleeve; each end cap has one end provided with a clamping edge and the other end provided with a clamping bench; and the clamping edges of the end portions of the end caps are clamped at the end portions of the transparent members. The micro pipe joint for micro cable protection has the following advantages: the structure is simple and sound, the joint overall sealing performance is good, and the impact resistance is high. Besides, the joint is corrosion resistant, provides higher safety and reliability for micro pipe manufacturing and construction, and substantially prolongs the service life of fibers in a micro pipe.

Description

A kind of microtube joint for micro cable protection

Technical field

The utility model relates to a kind of microtube joint for micro cable protection, belongs to fiber optic cable plant technical field.

Background technology

Optical fiber for communication engineering must be protected in its construction and use procedure, therefore first optical fiber will be placed in to micro-cable or optical cable.In recent years, the microtubule technology that America and Europe develops rapidly impels the manufacture of micro-cable, microtubule and construction all to make significant headway.Micro-cable is fewer than the protective layer material of conventional cable, cost is low, because of in batches successively cloth be placed in pipeline, micro-cable core number of the initial stage that can reduce.According to market demand, can lay at any time and substitute optical fiber, avoided laying 8～10 years after the above fiber utilization of hundred cores just reach 30% shortcoming.

Micro-cable must guarantee the serviceable life of at least 20 years, and micro-cable function can not be degenerated in the meantime.Due in construction and use procedure in outdoor environment, so micro-cable must possess the bad external environment condition of opposing, the ability affecting as sewage, sump oil low temperature, corrosion etc.Therefore micro-cable must be placed in to microtubule, the two ends of microtubule must emit sealing with waterproof sealing.

Along with the needs of the times, optical fiber becomes possibility with entering, and for fear of the fine construction of cloth, because excavation destroys municipal roadbed, operating technique and method all need to improve, every technical performance index to pipe adapter has all proposed new requirement, does not also reach in the market the pipe adapter of standard-required completely.

Summary of the invention

The purpose of this utility model is to propose a kind of microtube joint for micro cable protection, changes the structure of existing microtube joint, prevents that gas from leaking outside when solving microtube joint internal pressurization, and can not prevent that external pressurized is to the problem of internal leak.By new structure, when while preventing from constructing, air pressure inside increases to 3Mpa, tube joint assembly pulls open, and has an accident.

The microtube joint for micro cable protection the utility model proposes, comprises two Transparent Parts, two end caps, two spring leafs, two packing rings, two O-ring seals and inner sleeve; Described inner sleeve is hollow symmetrical structure, and the outside surface at inner sleeve two ends is processed with screw thread, in the endoporus at inner sleeve two ends, has step; Two described O-ring seals are arranged in the endoporus at inner sleeve two ends, and fix by step; Described two packing rings and two spring leafs are pressed on respectively on two O-ring seals, and by two Transparent Parts, packing ring and spring pressure are fastened, there is step described Transparent Parts inside, in order to mounting spring sheet and packing ring, Transparent Parts internal port inside surface is processed with screw thread, for mutually tightening with the screw thread of inner sleeve two ends outside surface; One end of described end cap is with edge, and the other end is with Ka Tai, and the edge of end cap end is stuck in the end of Transparent Parts.

The microtube joint for micro cable protection the utility model proposes, its advantage is simple and reasonable, whole joint tighness is good; impact resistance is strong, corrosion-resistant, air tight under 18 atmospheric pressure; not explosion under 38 atmospheric pressure, oozes in not under 6 atmospheric pressure, and 380N pulling force does not disconnect.For the manufacture of microtubule, construction provide more safe and reliable joint, and have greatly improved the serviceable life of optical fiber in microtubule.

Accompanying drawing explanation

Fig. 1 is the structural representation of the microtube joint for micro cable protection that the utility model proposes

Fig. 2 is the structural representation of end cap in the microtube joint shown in Fig. 1.

Fig. 3 is the structural representation of Transparent Parts in the microtube joint shown in Fig. 1.

Fig. 4 is the be hit by a bullet structural representation of reed of the microtube joint shown in Fig. 1.

Fig. 5 is the structural representation of the microtube joint middle washer shown in Fig. 1.

Fig. 6 is the structural representation of rubber ring in the microtube joint shown in Fig. 1.

Fig. 7 is the structural representation of inner sleeve in the microtube joint shown in Fig. 1.

In Fig. 1-Fig. 7, the 2nd, end cap, the 3rd, Transparent Parts, the 4th, spring leaf, the 5th, packing ring, the 6th, O-ring seal, the 7th, inner sleeve.

Embodiment

The microtube joint for micro cable protection the utility model proposes; its structure as shown in Figure 1; comprise two Transparent Parts 3, (its structure is as shown in Figure 3), two its structures of end cap 2(are as shown in Figure 2), two its structures of spring leaf 4(as shown in Figure 4), two its structures of packing ring 5(are as Fig. 5), two its structures of O-ring seal 6(are as shown in 6) and its structure of inner sleeve 7(as shown in Figure 7).Inner sleeve 7 is hollow symmetrical structure, and the outside surface at inner sleeve two ends is processed with screw thread, in the endoporus at inner sleeve two ends, has step.Two O-ring seals 6 are arranged in the endoporus at inner sleeve two ends, and fix by step.Two packing rings 5 and two spring leafs 6 are pressed on respectively on two O-ring seals 6, and by two Transparent Parts 3, packing ring 5 and spring leaf 6 are fixed, there is step Transparent Parts 3 inside, in order to mounting spring sheet 4 and packing ring 5, Transparent Parts 3 internal port inside surfaces are processed with screw thread, for mutually tightening with the screw thread of inner sleeve two ends outside surface.One end of end cap 2 is with edge, and the other end is with Ka Tai, and the edge of end cap end is stuck in the end of Transparent Parts 3.

The use procedure of the microtube joint the utility model proposes is: insert from the two ends of microtube joint respectively the end of two sections of microtubules that need are connected, by end cap, shell fragment, rubber ring is tightly fixed in microtube joint by the end of microtubule, again due to the acting in conjunction of packing ring, shell fragment O-ring seal, being microtubule partly seals and air tight at microtube joint, can bear 18 above atmospheric pressure, rely on the be threaded power of holding that adds of power and shell fragment of Transparent Parts and inner sleeve to bear the pulling force of 380N and do not disconnect.

Plastic components in microtube joint of the present utility model, manufactures with macromolecular material polycarbonate, has very high intensity and toughness, makes microtube joint have good corrosion resistance and impact resistance and explosion-proof performance.

Claims

1. for a microtube joint for micro cable protection, it is characterized in that this microtube joint comprises two Transparent Parts, two end caps, two spring leafs, two packing rings, two O-ring seals and inner sleeve; Described inner sleeve is hollow symmetrical structure, and the outside surface at inner sleeve two ends is processed with screw thread, in the endoporus at inner sleeve two ends, has step; Two described O-ring seals are arranged in the endoporus at inner sleeve two ends, and fix by step; Described two packing rings and two spring leafs are pressed on respectively on two O-ring seals, and by two Transparent Parts, packing ring and spring pressure are fastened, there is step described Transparent Parts inside, in order to mounting spring sheet and packing ring, Transparent Parts internal port inside surface is processed with screw thread, for mutually tightening with the screw thread of inner sleeve two ends outside surface; One end of described end cap is with edge, and the other end is with Ka Tai, and the edge of end cap end is stuck in the end of Transparent Parts.