CN101950051B - Three-needle-type FTTH fiber connector - Google Patents

Abstract

The invention relates to a three-needle-type FTTH fiber connector comprising a connecting body, an insertion core and a locking mechanism, wherein, the connecting body is used for inserting two optical cables to be butted into an optical cable insertion channel arranged in the connecting body the fiber connector; the insertion core is arranged in the optical cable insertion channel in the middle part of the connecting body; the locking mechanism is used for fixing the optical cable on the connecting body; the insertion core is composed of three stainless steel needles which are overlapped into a shape like a Chinese character 'pin'; and butt holes are formed among the three steel needles. As the insertion core adopts a three-needle-type structure, has unique shape, is easy to manufacture, adopts the stainless steel needles, has good corrosion resistance, and can be used for a long time. The whole connector has the advantages of simple structure, high installation quality, high success rate, high reliability and high installation speed, can lead the fibers to be butted in rapid speed and has larger popularization and application value in some occasions, such as small construction area, no power source, places in which the electric spark is strictly prohibited, and places with scattered installation position.

Description

The three-hand type FTTH joints of optical fibre

Technical field

The present invention relates to a kind of fiber optic communication field, the FTTH fiber active linker that is coupled to each other especially for optical fiber.

Background technology

The joints of optical fibre; Be optical fiber with optical fiber between carry out the device that detachable (activity) is connected; It gets up the accurate butt joint of two end faces of optical fiber; Go so that the luminous energy of launching fiber output can be coupled to receive in the optical fiber to greatest extent, and make because it is got involved optical link and the influence that system causes is reduced to minimum, this is the basic demand of the joints of optical fibre.To a certain extent, the joints of optical fibre have influenced reliability and each item performance of optical transmission system.The joints of optical fibre that are used for FTTH should have " complete cutting, accurately aim at, elasticity paste into, reliably tighten up " wait four characteristics, could guarantee that like this signal hangs down the damage conducting.The existing joints of optical fibre, its lock pin adopts zirconia ceramics material to process more, and damaging appears in long-term use the easily, thereby can't satisfy above-mentioned to joints of optical fibre performance demands.

Summary of the invention

The technical matters that the present invention will solve provides a kind of grinding, reliability height and reusable three-hand type FTTH joints of optical fibre of need not.

In order to solve the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of three-hand type FTTH joints of optical fibre, it comprises

Connect body, described connection body has and is used for waiting to dock the optical fiber that optical fiber inserts wherein with two sections and inserts passage;

Lock pin, it is set in place in the optical fiber that connects the body middle part and inserts in the passage, and described lock pin has the butt hole that is connected with optical fiber insertion passage;

Latch mechanism, it is installed in the two ends that connect body, is used for optical fiber is fixed on the connection body;

Described lock pin is made up of three parallel superimposed stainless pins that are isosceles triangle; Be formed with described butt hole between described three draw points; Described each draw point two ends are tapered; The both ends of whole lock pin are trumpet type, and the optical fiber of described connection body inserts passage and is provided with the butt hole of lock pin is concentric, insert also to be concaved with on the passage at the optical fiber that is positioned at the lock pin two ends to be used for optical fiber and to carry out laterally mobile arc dashpot within it.

Preferably, described connection body comprise connect pedestal, with the connection top cover that is connected the bonding setting of pedestal, described optical fiber inserts passage and is spliced with being connected top cover by the connection pedestal, and described dashpot is opened on the connection pedestal.

Further preferably, described connection body is cuboid, and its xsect outer rim is square.

As a kind of concrete embodiment, the physical dimension of described connection body is 40mm * 5mm * 5mm.

Preferably, described connection body adopts amino resins or ABS plastic injection mo(u)lding.

Because the technique scheme utilization, the present invention compared with prior art has advantage: the joints of optical fibre of the present invention, and its lock pin that is used for optical fiber align adopts the three-hand type structure; Moulding is unique, and is easy to make, and; Lock pin adopts the Stainless Steel pin, and good corrosion resistance can use for a long time.Simultaneously; Whole connector construction is simple; Need not during installation to grind, need not welding, have the installation quality height, success ratio is high, reliability is high and install quick etc. a bit, especially little, non-transformer, the occasion of forbidding electric spark or installation site to disperse in some construction areas; Can make and the optical fiber rapid abutting joint have bigger application value.

Description of drawings

Accompanyingdrawing 1 is a kind of joints of optical fibre cut-open view that technical scheme is implemented according to the present invention;

Accompanyingdrawing 2 is an A-A direction cut-open view in the accompanyingdrawing 1;

Wherein: 1, connect body; 11, optical fiber inserts passage; 12, dashpot; 13, connect pedestal; 14, connect top cover;

2, lock pin; 21, butt hole; 22, draw point; 3, latch mechanism; 4, optical fiber; 41, bare fibre;

Embodiment

To combine accompanying drawing below, the preferred embodiment of the invention will be elaborated:

The joints of optical fibre as depicted in figs. 1 and 2, it is mainly formed by connectingbody 1,lock pin 2 andlatch mechanism 3 three parts.Wherein, connectbody 1 by connectingpedestal 13, forming with the connectiontop cover 14 that is connectedpedestal 13 bonding settings,whole connection body 1 is cuboid, and in the present embodiment, the size that connectsbody 1 is set at length * wide * height=40 * 5 * 5mm.Connectpedestal 13 and insertpassage 11 with being connected the optical fiber that is formed with between thetop cover 14 along the extension of body length direction, this opticalfiber inserts passage 11 and is used for two sectionsoptical fiber 4 to be docked are inserted wherein from the two ends that connectbody 1 respectively.Whole connection body adopts amino resins or ABS plastic injection mo(u)lding.

Lock pin 2 is embedded in optical fiber and inserts in thepassage 11; Lockpin 2 fixedly is bonded by threestainless pins 22 through polishing; It is superimposed, as shown in Figure 2 that threedraw points 22 are isosceles triangle, just in time forms abutt hole 21 between three draw points; Thisbutt hole 21inserts passage 11 with optical cable and is connected, andbutt hole 21 is concentric with optical cable insertion passage 11.In order to make thebare fibre 41 at two ends get in thebutt holes 21 smoothly, taper all is processed at the two ends of threedraw points 22, makes the two ends flare of whole lock pin, guarantees that optical fiber gets into smoothly and realizes aiming at the lock pin center and connect.

Latch mechanism 3 is installed in the two ends that connectbody 1, and it mainly is used for fixingoptical fiber 4 in the position that connects on the body 1.In the present embodiment,latch mechanism 3 connects on thetop cover 14 and rotating locking is turned round for being installed in, and is as shown in Figure 1; Optical fiber is in connection status among the figure; The state that is in locking optical fiber is turned round in the locking that is positioned at the right side, can prevent that optical fiber from withdrawing from connector, and the locking in left side is turned round and is in unlocked state; This shows that the optical fiber in left side has level of freedom.

In order to let optical fiber when locking; A buffer zone that laterally moves is arranged; The both sides that onconnection pedestal 13, are positioned atlock pin 2 are concaved with anarc dashpot 12 respectively; Whenlatch mechanism 3 was fixed on optical fiber on the connection body, it had certain curved space in thisdashpot 12, shown in right side among Fig. 1.

The present embodiment joints of optical fibre are applicable to the coated fiber of 0.25mm or the heart yearn of 0.9mm tightly packaged fiber; Whole connector construction is compact, and volume is less, can realize easily that not only optical fiber Cheng Duan goes into the panel box; And can directly insert ONU; Twin-core skin cable continues into both-end, and outdoor optical cable is gone into villa etc., covers FTTx comprehensively Fiber to the home various requirement.These joints of optical fibre also are applicable at machine room field fabrication fixed length jumping fiber in addition, can increase substantially the machine room service efficiency, reduce the machine room potential faults.Need not to grind, need not welding during installation; Only need wait that with two the optical fiber of aiming at connection inserts the optical-fibre channel from connecting the left and right two ends of body respectively, butt joint get final product optical fiber at the lock pin center then, aims to connect not only fast but also make things convenient for; And reliability is higher; Operation need not the professional, even general resident also can have bigger application value from line operate.

The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.

Claims (5)

1. three-hand type FTTH joints of optical fibre, it comprises

Connect body (1), described connection body (1) has and is used for waiting to dock the optical fiber that optical fiber inserts wherein with two sections and inserts passage (11);

Lock pin (2), it is set in place in the optical fiber that connects body (1) middle part and inserts in the passage (11), and described lock pin (2) has the butt hole (21) that is connected with optical fiber insertion passage (11);

Latch mechanism (3), it is installed in the two ends that connect body (1), is used for optical fiber is fixed on connection body (1);

It is characterized in that: described lock pin (2) is made up of three parallel superimposed stainless pins (22) that are isosceles triangle; Be formed with described butt hole (21) between described three draw points (22); Described each draw point (22) two ends are tapered; The both ends of whole lock pin (2) are trumpet type; The optical fiber of described connection body (1) inserts the concentric setting of butt hole (21) of passage (11) and lock pin (2), is used for optical fiber and carries out laterally mobile arc dashpot (12) within it being positioned at also to be concaved with on the optical fiber insertion passage (11) at lock pin (2) two ends.

2. the three-hand type FTTH joints of optical fibre according to claim 1; It is characterized in that: described connection body (1) comprise connect pedestal (13), with the connection top cover (14) that is connected the bonding setting of pedestal (13); Described optical fiber inserts passage (11) and is spliced with being connected top cover (14) by connecting pedestal (13), and described dashpot (12) is opened on the connection pedestal (13).

3. the three-hand type FTTH joints of optical fibre according to claim 2 is characterized in that: described connection body (1) is cuboid, and its xsect outer rim is square.

4. the three-hand type FTTH joints of optical fibre according to claim 3 is characterized in that: the physical dimension of described connection body (1) is 40mm * 5mm * 5mm.

5. according to the described arbitrary three-hand type FTTH joints of optical fibre of claim 1～4, it is characterized in that: described connection body (1) adopts amino resins or ABS plastic injection mo(u)lding.

Images