KR101783973B1 - Connection sleeve for protecting optical cable joint - Google Patents

Connection sleeve for protecting optical cable joint Download PDF

Info

Publication number
KR101783973B1
KR101783973B1 KR1020160023469A KR20160023469A KR101783973B1 KR 101783973 B1 KR101783973 B1 KR 101783973B1 KR 1020160023469 A KR1020160023469 A KR 1020160023469A KR 20160023469 A KR20160023469 A KR 20160023469A KR 101783973 B1 KR101783973 B1 KR 101783973B1
Authority
KR
South Korea
Prior art keywords
sealing member
connector
elasticity
optical cable
connection point
Prior art date
Application number
KR1020160023469A
Other languages
Korean (ko)
Other versions
KR20170100944A (en
Inventor
권영우
김용운
Original Assignee
주식회사 에스원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 에스원 filed Critical 주식회사 에스원
Priority to KR1020160023469A priority Critical patent/KR101783973B1/en
Publication of KR20170100944A publication Critical patent/KR20170100944A/en
Application granted granted Critical
Publication of KR101783973B1 publication Critical patent/KR101783973B1/en

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3847—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces
    • G02B6/3849—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces using mechanical protective elements, e.g. caps, hoods, sealing membranes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Cable Accessories (AREA)

Abstract

The present invention provides a connection sleeve for protecting an optical cable connection point capable of stably protecting a fused and connected optical cable connection point.
According to one aspect of the present invention, a connection sleeve for protecting an optical cable connection point includes a hollow protective pipe into which an optical cable connection point is inserted, a connector coupled to a longitudinal direction of the protection pipe, a connector cap coupled to the connector, And a second sealing member inserted in the first sealing member and extending longer than the first sealing member and protruding outward of the first sealing member.

Figure R1020160023469

Description

TECHNICAL FIELD [0001] The present invention relates to a connection sleeve for protecting an optical cable connection point,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection sleeve, and more particularly, to a connection sleeve for protecting an optical cable's connection point.

When installing fiber optic cables, the cables in the two sections are connected together by connecting the optical fibers of one of the sections to the corresponding optical fibers of the other section using a junction box called a closure. Cables for long distance transmission require multiple closures, and multi-core cables require optical fibers that must be connected together over many times. Thus, there is a need for a connection that can connect the optical fibers more accurately together and reduce the number of times the optical fibers are connected together, so that an inexpensive, relatively durable optical fiber connection can be achieved.

Conventionally known optical cable connecting methods include a method of fusing optical fibers using a fusion splicer, a method of mechanically connecting using a connector, and an adhesive bonding method using a UV-curable adhesive.

Although mechanical bonding requires a lower-cost connecting tool than fusion bonding, the fixing of the optical cable may depend on the mechanical fastening force, resulting in deterioration in durability, reliability, and light loss.

Problems associated with adhesive bonding require UV irradiation, which results in high cost, and ultraviolet radiation is harmful to the human body, resulting in decreased operability in the operating position.

When the connection point is formed by the fusion splicer, the optical cable can be stably connected, but water may penetrate the connection point or the connection point may be cracked or cut due to external vibration or impact.

In the case of connecting the optical cables in this way, it is very important to prevent the optical cables from escaping and to prevent the breakage of the connection part due to moisture penetration and vibration by holding the optical cables firmly.

The present invention provides a connection sleeve for protecting an optical cable connection point capable of stably protecting a fused and connected optical cable connection point.

According to an aspect of the present invention, there is provided a connection sleeve for protecting a fused-connected optical cable connection point according to one aspect of the present invention includes a hollow protective pipe to which a fused and connected optical cable connection point is inserted, a connector fastened to one side of the protection pipe in a longitudinal direction, And a second sealing member inserted in the first sealing member and extending longer than the first sealing member and protruding outward from the connector cap, the second sealing member being inserted into the connector, .

The first sealing member may include a first portion inserted into the connector and a second portion protruding from the connector and inserted into the connector cap.

Further, one end of the second sealing member may be inserted into the connector, and the other end of the second sealing member may protrude to the outside of the connector cap.

In addition, the first sealing member and the second sealing member may be formed to have different elasticity.

Further, the first sealing member may be made of a material having a first elasticity, and the second sealing member may be made of a material having a second elasticity, and the second elasticity may be larger than the first elasticity.

The second sealing member may be made of silicone rubber.

The first sealing member may include any one selected from the group consisting of styrene butadiene styrene, styrene butadiene, acrylonitrile butadiene, and ethylene propylene.

The connector may further include an inner support screwed to the protective pipe, a flange extended outwardly from the inner support, and an outer support screwed to the connector cap.

A plurality of slits extending in the longitudinal direction of the connector may be formed on the outer support, and the slits may be spaced apart from the outer connector in the circumferential direction.

According to an embodiment of the present invention, since the first sealing member and the second sealing member inserted in the first sealing member and formed longer than the first sealing member are provided, the connection point of the fused and connected optical cable can be stably protected.

Further, since the elasticity of the first sealing member and the second sealing member are different from each other and the elasticity of the second sealing member is formed larger than the elasticity of the first sealing member, the connection point of the fused and connected optical cable can be more stably protected . In particular, according to an embodiment of the present invention, moisture penetrating between the connector cover and the optical cable can be stably shielded.

1 is an exploded perspective view showing a connection sleeve according to an embodiment of the present invention.
2 is a cross-sectional view of a portion of another connecting sleeve according to an embodiment of the present invention.
3 is an exploded perspective view showing a part of a connection sleeve according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the specification and drawings, the same reference numerals denote the same elements.

FIG. 1 is an exploded perspective view showing a connection sleeve according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a part of a connection sleeve according to an embodiment of the present invention, FIG. 3 is a cross- Fig. 5 is an exploded perspective view showing a part of the connection sleeve according to the first embodiment.

1 to 3, a connection sleeve 101 for protecting an optical cable connection point according to the present embodiment includes a protection pipe 10, a connector 20, a connector cap 40, a first sealing member 30, , And a second sealing member (50).

The protection pipe 10 is made of a circular tube, and an optical cable connection point fused and connected by a fusion splicer is inserted into the protection pipe. At both longitudinal ends of the protection pipe, fastening portions (12, 13) for fastening the connector are formed. The fastening portions 12 and 13 are projected further outward than the other portions of the protection pipe 10 and the inner circumferential surfaces of the fastening portions 12 and 13 are formed with threads.

The connecting sleeve 101 includes two connectors 20, and the connector 20 is coupled to both longitudinal ends of the protective pipe 10. The connector 20 is hollow so that the optical cable can pass through. The connector 20 includes an inner support 21 threaded into the protective pipe 10, a flange 22 extending outwardly from the inner support 21 and an outer support 23 threadedly engaged with the connector cap 40 ).

The inner support portion 21 is inserted into the fastening portions 12 and 13 and is screwed to the protection pipe 10. The flange portion 22 protrudes outward from the inner support portion 21 and abuts the tip end of the fastening portions 12 and 13. [ The outer support portion 23 protrudes in a direction opposite to the inner support portion 21 and is engaged with the connector cap 40. On the outer surface of the outer support portion 23, a thread is formed.

A plurality of slits 28 extending in the longitudinal direction of the connector 20 are formed on the outer support portion 23 and the slits 28 are spaced apart from each other in the circumferential direction of the connector 20. When the connector cap 40 is coupled to the outer support 23 the outer support 23 is pressed by the connector cap 40 and the outer support 23 is pressed against the first sealing member 30 and second The sealing performance of the sealing member 50 can be further improved.

The connector cap 40 includes a tubular portion 41 fixed to the outer support portion 23 in a screwed manner, a cover portion 42 formed in a plate shape blocking the tube portion 41, and an opening 43 formed in the cover portion 42 . On the inner surface of the tube portion 41 is formed a thread to be engaged with the outer support portion 23.

The first sealing member 30 is tubular and is inserted into the connector 20. The first sealing member 30 includes a first portion 31 inserted into the connector 20 and a second portion 32 projecting outwardly of the connector 20, (40).

The first sealing member 30 is made of rubber, and may include any one selected from the group consisting of styrene butadiene styrene, styrene butadiene, acrylonitrile butadiene, and ethylene propylene. The first sealing member 30 may be made of styrene butadiene rubber (SBR), acrylonitrile butadiene rubber (NBR), or ethylene propylene rubber (EPR).

The second sealing member 50 is inserted into the first sealing member 30 and extends longer than the first sealing member 30 and protrudes outward of the first sealing member 30. The second sealing member 50 protrudes outside the connector cap 40 through the connector 20 and the connector cap 40.

When the first sealing member 30 and the second sealing member 50 are installed and protruded to the outside of the connector cap 40 as described above, the second sealing member 50 primarily blocks moisture and the first sealing member 50 30) can stably protect the fiber-optic cable connection point with moisture as a secondary function.

On the other hand, the first sealing member 30 and the second sealing member 50 may have different elasticity. That is, the first sealing member 30 is made of a material having a first elasticity, the second sealing member 50 is made of a material having a second elasticity, and the second elasticity is formed larger than the first elasticity . The second elasticity may be 1.1 to 5 times the first elasticity. For this, the second sealing member 50 may be made of silicone rubber.

As described above, when the first sealing member 30 and the second sealing member 50 have different elasticity, and the second sealing member 50 is made of a material having greater elasticity than the first sealing member 30 The first sealing member 30 and the second sealing member 50 can more reliably block penetration of moisture.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And it goes without saying that the invention belongs to the scope of the invention.

Connecting sleeve (101) Protective pipe (10)
The connector (20)
The inner support 21 flange 22,
The outer support 23 slits 28,
The first portion 31 of the first sealing member 30,
The second portion 32, the connector cap 40,
The tube portion 41, the cover portion 42,
The opening (43) and the second sealing member (50)

Claims (9)

A hollow protective pipe into which the optical cable connection point is inserted;
Connectors secured to both longitudinal ends of the protective pipe;
A connector cap which is tubular and is coupled to the connector;
A first sealing member formed in a tubular shape and inserted into the connector; And
A second sealing member inserted into the first sealing member and extending longer than the first sealing member and protruding outside the connector cap;
Lt; / RTI >
Wherein the first sealing member is made of a material having a first elasticity and the second sealing member is made of a silicone rubber material having a second elasticity and the second elasticity is 1.1 to 5 times larger than the first elasticity Wherein the optical fiber splice protection sleeve is formed of a metal. The method according to claim 1,
Wherein the first sealing member includes a first portion inserted into the connector and a second portion protruding from the connector and inserted into the connector cap. 3. The method of claim 2,
Wherein one end of the second sealing member is inserted into the connector and the other end of the second sealing member protrudes outside the connector cap. 3. The method of claim 2,
Wherein the first sealing member and the second sealing member have elasticity different from each other. delete delete The method according to claim 1,
Wherein the first sealing member comprises any one selected from the group consisting of styrene butadiene styrene, styrene butadiene, acrylonitrile butadiene, and ethylene propylene. The method according to claim 1,
Wherein the connector includes an inner support screwed to the protective pipe, a flange extended outwardly from the inner support, and an outer support screwed to the connector cap. 9. The method of claim 8,
A plurality of slits extending in the longitudinal direction of the connector are formed on the outer supporting portion, and the slits are spaced apart in the circumferential direction of the outer connector.
KR1020160023469A 2016-02-26 2016-02-26 Connection sleeve for protecting optical cable joint KR101783973B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160023469A KR101783973B1 (en) 2016-02-26 2016-02-26 Connection sleeve for protecting optical cable joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160023469A KR101783973B1 (en) 2016-02-26 2016-02-26 Connection sleeve for protecting optical cable joint

Publications (2)

Publication Number Publication Date
KR20170100944A KR20170100944A (en) 2017-09-05
KR101783973B1 true KR101783973B1 (en) 2017-10-10

Family

ID=59924726

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160023469A KR101783973B1 (en) 2016-02-26 2016-02-26 Connection sleeve for protecting optical cable joint

Country Status (1)

Country Link
KR (1) KR101783973B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102509685B1 (en) * 2020-09-07 2023-03-14 (주)아이벡스메디칼시스템즈 optical cable penetrator device and system for oxygen saturation measurement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007072255A (en) * 2005-09-08 2007-03-22 Toto Ltd Optical receptacle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007072255A (en) * 2005-09-08 2007-03-22 Toto Ltd Optical receptacle

Also Published As

Publication number Publication date
KR20170100944A (en) 2017-09-05

Similar Documents

Publication Publication Date Title
ES2843674T3 (en) Reinforced fiber optic connector
US20200110227A1 (en) Optical fiber connector and method of assembling the same on site
US8047726B2 (en) Optical connector
BR112017012958B1 (en) CONNECTION PART AND FIBER OPTIC CONNECTOR
KR101964764B1 (en) Plug protection cap, fiber optic connector assembly, fiber optic plug and network device
WO2016086881A1 (en) System and method for protecting optical fibre splice
ES2708671T3 (en) Optical connector and ferrule of optical connector
US9004781B2 (en) Method for reinforcing a splice part and reinforcing structure
RU2603237C2 (en) Unit of connection of fibre-optic cable with connector having fibre locking means
US10082230B2 (en) Corrugated tube for protecting a cable, fastener for coupling a housing on the corrugated tube and seal element for sealing the corrugated tube against the housing
MX2012004906A (en) Optical connector.
RU2006111269A (en) BASIC COMPONENT OF THE PROTECTIVE HOUSING AND ELEMENT FOR THE FORMATION OF THIS COMPONENT
KR101783973B1 (en) Connection sleeve for protecting optical cable joint
GB2600051A (en) Waterproof optical connector plug for outdoor field assembly, and method for manufacturing same
WO2010092657A1 (en) Optical connector and method for assembling optical connector
KR101939378B1 (en) Connector for optical fiber cable
KR101762403B1 (en) Optical connector for assembling in the field
US10877221B2 (en) Fiber optic connector
US20160103284A1 (en) Enhanced EMI Protection for a Connector System
KR100933502B1 (en) Protecting pipe for communication cable
TWM486070U (en) Connecting device for connecting optical fiber cables
JP6527718B2 (en) Plug side optical connector and optical connector system
KR101231205B1 (en) Connector assembly for fiber optic cables
KR102512811B1 (en) Field-assembled fiber optic connector
RU2817508C2 (en) Fiber-optic cable core stripping method and fiber-optic cable

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant