CN202057836U - Rapid optical fiber connector - Google Patents

Abstract

The utility model relates to a rapid optical fiber connector, which comprises a ferrule cavity and a locating inner frame sleeve, wherein a ferrule flange is arranged in the ferrule cavity, one end in the ferrule flange is provided with a second ferrule, the other end in the ferrule flange is provided with a fiber pigtail locating groove, one end of the second ferrule and corresponding to the other end connected with the ferrule flange extends into a connection pipe and can move in the connection pipe, a first ferrule is arranged in the connection pipe, an optical fiber splicing portion used for air exhaust in splicing the first ferrule and the second ferrule is arranged in the connection pipe, the connection pipe and the first ferrule extend into the locating inner frame sleeve, the first ferrule penetrates out of the locating inner frame sleeve, a splicing spring is arranged in the ferrule cavity, the splicing spring is arranged at the other end of the ferrule cavity and the locating inner frame sleeve, one end of the ferrule flange and corresponding to an end provided with the fiber pigtail locating groove extends into the ferrule cavity and penetrates into the splicing spring, and the ferrule flange is correspondingly connected with the splicing spring. The rapid optical fiber connector is compact in structure, convenient in connection and operation, low in splicing loss, high in stability and reliability, and wide in application scope, and is safe and reliable.

Description

A kind of fast fibre connector

Technical field

The utility model relates to a kind of connector, and especially a kind of fast fibre connector belongs to the technical field of fibre junction.

Background technology

In the fibre junction field, the mechanical type fibre junction is two kinds of different modes realizing that optical fiber is fixedlyed connected with Fusion Joining.Fiber to the home be deployed in user resident and indoor at the fibre junction point have big and the characteristics that the place disperses of number of users.Because different user is applied to install asynchronism(-nization), same sub-district, similar ADSL service release.After the user arrived to a certain degree, existing workmen and heat sealing machine can not satisfy the time requirement of user's turn up service.Mechanical type fibre junction mode is because simple to operate, and the staff training cycle is short, and instrument is invested characteristics such as little, for the optical fiber large scale deployment provides most cost-effective fibre junction solution.In such as corridor eminence, small space, illumination is not enough, on-the-spot power taking inconvenience etc. occasion.The mechanical type joints of optical fibre provide convenience, practicality, the means that continue efficiently for design, installation, maintainer.In theory, in Fiber to the home engineering, to the family, continuing of the optical cable of registering one's residence of enormous amount, scattered distribution such as capillary all should consider to use the mechanical type joints of optical fibre after the optical splitter beam split.

Optical fiber cold joint technology is guardian technique in optical fiber is registered one's residence engineering, but the insertion loss of optical fiber cold joint product is the resistance for fear of this technology popularization always.Generally the Insertion Loss requirement to the common joints of optical fibre is less than 0.3 or 0.2; Certainly the insertion loss of cold joint product can be more satisfactory state below 0.3 or 0.2.But external domesticly seldom have several companies the insertion loss of cold joint product really can be controlled at below 0.3 or 0.2, and except that Minnesota Mining and Manufacturing Company, the real insertion loss of this series products of other companies is all at 0.5 ~ 0.6.Like product adopts the design of V-type groove mostly, and two ends optical fiber is docked in groove.

The too high The key factor of cold connector Insertion Loss is the low-refraction that the breakpoint place has the clearance to cause.A lot of companies only consider at the breakpoint place when product design and add the matching fluid secluding air, and do not consider the air emptying that how breakpoint place itself is existed, matching fluid wraps up the original micro-air in breakpoint place when using easily, causes insertion loss to maintain about 0.5.

In order to reduce the insertion loss of fibre junction, in the prior art, favourable structure with optical fiber matching fluid and vent port or air discharge duct, by being arranged on vent port or the link slot on the connecting pipe, can when the fibre junction of two ends, air be discharged, thereby can effectively reduce insertion loss.But, because optical fiber in cutting process, is difficult to guarantee that the absolute smooth of fiber end face can form certain fine face depression; And the out-of-flatness meeting of fiber end face forms the airspace between the optical fiber contact when continuing, such airspace can make the insertion loss of fibre junction still remain on the higher level, particularly when in the housing of optical fiber contact at connector, influenced the use of fibre junction.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of fast fibre connector is provided, its compact conformation, and attended operation is convenient, connecting loss is low, stability and reliability height, and wide accommodation is safe and reliable.

According to the technical scheme that the utility model provides, described fast fibre connector comprises the lock pin cavity and is positioned at the location inside casing cover of described lock pin cavity one end end; Be provided with plug core tail handle in the lock pin cavity, end in the described plug core tail handle is provided with the second fixedly connected lock pin, the other end in the plug core tail handle is provided with the tail optical fiber locating slot, and described tail optical fiber locating slot is along the axial distribution of plug core tail handle, and the tail optical fiber locating slot is connected with second lock pin; Second lock pin stretches in the connecting pipe corresponding to the other end that links to each other with plug core tail handle, and can move in connecting pipe; Be provided with the first fixedly connected lock pin corresponding to the other end that links to each other with second lock pin in the connecting pipe; Be provided with in the connecting pipe be used for first lock pin, the fibre junction portion of exhaust when second lock pin continues; The connecting pipe and first lock pin stretch in the inside casing cover of location, and first lock pin passes in the inside casing cover of location; Be provided with the spring that continues in the described lock pin cavity, the described spring that continues is positioned at the lock pin cavity and the other end of locating the inside casing cover; The plug core tail handle correspondence is provided with the end of tail optical fiber locating slot and stretches in the lock pin cavity, and penetrates in the spring that continues; The corresponding connection of plug core tail handle with the wiring spring.

Described fibre junction portion comprises the optical fiber matching fluid that is positioned at connecting pipe, and described optical fiber matching fluid is wrapped up the end that first lock pin is positioned at connecting pipe; Connecting pipe with the corresponding sidewall of optical fiber matching fluid be set be provided with vent port, described vent port is connected with connecting pipe.

Described fibre junction portion comprises the optical fiber matching fluid that is positioned at connecting pipe, and described optical fiber matching fluid is wrapped up the end that first lock pin is positioned at connecting pipe; In the connecting pipe with the corresponding sidewall of optical fiber matching fluid be set be provided with the plurality of rows air drain, described air discharge duct corresponding sidewall that optical fiber matching fluid is set in the connecting pipe extends to the end that second lock pin inserts.

Described lock pin cavity is provided with the crimping caudal peduncle corresponding to the other end that links to each other with location inside casing cover, be provided with positioning step in the described crimping caudal peduncle, described positioning step links to each other with an end of the spring that continues, and the other end of the spring that continues stretches in the lock pin cavity, and is enclosed within on the plug core tail handle.

Be concaved with locating slot on the described lock pin cavity, be provided with fine setting button and optical fiber crimping button in the described locating slot, described optical fiber crimping button is the corresponding contiguous spring that continues in locating slot; The end that the fine setting button is positioned at locating slot is provided with fixed orifice, and the end that optical fiber crimping button is positioned at locating slot is provided with pilot hole, and the axis of the axis of described pilot hole, fixed orifice and lock pin cavity is located along the same line; The spring that continues links to each other with the corresponding bottom that pilot hole is set of optical fiber crimping button with the other end that positioning step links to each other.

Described lock pin cavity is provided with the crimping button locating piece of symmetrical distribution, and described optical fiber crimping button is embedded in the locating slot, and the shape and the lock pin cavity of optical fiber crimping button are complementary, and the end of optical fiber crimping button links to each other with crimping button locating piece.

Described location inside casing puts and is provided with the locating outer frame cover, and the shape of described locating outer frame cover is complementary with the shape of location inside casing cover, and location inside casing cover can move in the locating outer frame cover.

Described crimping caudal peduncle is provided with crimping tail cover.Be provided with the tail cover installing and locating groove of symmetrical distribution in the described crimping tail cover, the tail cover installing and locating piece of the shape of described tail cover installing and locating groove and crimping caudal peduncle end is complementary.

Described lock pin cavity convexes with lock pin cavity mounting blocks corresponding to the end with location inside casing cover, and the location inside casing puts and is provided with the connection pilot hole that allows lock pin cavity mounting blocks to set.

Advantage of the present utility model: an end of plug core tail handle is provided with second lock pin, tail optical fiber locating slot in second lock pin and the plug core tail handle is connected, and the interior pre-buried optical fiber of the tail optical fiber in second lock pin and first lock pin is finished for the first time by the fibre junction portion in the connecting pipe and continued; Plug core tail handle stretches in the lock pin cavity corresponding to the other end that second lock pin is set, the fixed orifice of fine setting button and the pilot hole of optical fiber crimping button position plug core tail handle, the restoring force of spring of continuing acts on the plug core tail handle by optical fiber crimping button, second lock pin of plug core tail handle end is moved to the direction of first lock pin in connecting pipe, and promptly tail optical fiber in second lock pin and the pre-buried optical fiber in first lock pin move; By moving of second lock pin, air between tail optical fiber and pre-buried optical fiber end can be discharged once more, under the parcel of optical fiber matching fluid, tail optical fiber in second lock pin and the pre-buried optical fiber in first lock pin reach the effect that continues preferably, tail optical fiber and pre-buried fibre junction are subjected to the influence of respective air when having reduced the fiber cut out-of-flatness, reduced the insertion loss that continues of tail optical fiber and pre-buried optical fiber, improved the effect of fibre junction, compact conformation, attended operation convenience, stability and reliability height, wide accommodation, safe and reliable.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is that the A-A of Fig. 1 is to cut-open view.

Fig. 3 is an explosive view of the present utility model.

Fig. 4 is a kind of structural representation of the utility model connecting pipe.

Fig. 5 is the right view of Fig. 4.

Fig. 6 is that the B-B of Fig. 4 is to cut-open view.

Fig. 7 is the another kind of structural representation of the utility model connecting pipe.

Fig. 8 is the structural representation of the utility model crimping tail cover.

Embodiment

The utility model is described in further detail below in conjunction with concrete drawings and Examples.

As Fig. 1 ~ shown in Figure 8: the utility model comprises first lock pin 1, connecting pipe 2, second lock pin 3, plug core tail handle 4, the first caudal peduncle contiguous block 5, spring 6 continues, locating outer frame cover 7, location inside casing cover 8, lock pin cavity 9, fine setting button 10, optical fiber crimping button 11, crimping caudal peduncle 12, crimping tail cover 13, locating slot 14, the second caudal peduncle contiguous block 15, tail optical fiber locating slot 16, crimping button locating piece 17, fixed orifice 18, lock pin cavity mounting blocks 19, crimping caudal peduncle mounting blocks 20, inside casing cover locating piece 21, connect pilot hole 22, the inside casing cover connects stopper slot 23, crimping caudal peduncle link slot 24, pilot hole 25, caudal peduncle locating piece 26, caudal peduncle locating slot 27, positioning step 28, connecting pipe locating piece 29, air discharge duct 30, vent port 31, tail cover installing and locating groove 32 and tail cover installing and locating piece 33.

As Fig. 1, Fig. 2 and shown in Figure 3: as described in lock pin cavity 9 be the cylinder-like structure of hollow, an end of lock pin cavity 9 is provided with location inside casing cover 8.Be provided with plug core tail handle 4 in the lock pin cavity 9, the end in the described plug core tail handle 4 is provided with second lock pin 3, and an end of described second lock pin 3 stretches in the plug core tail handle 4 and with plug core tail handle 4 fixedlys connected.Plug core tail handle 4 comprises the second caudal peduncle contiguous block 15 of the first caudal peduncle contiguous block 5 and corresponding matching, one end of the described first caudal peduncle contiguous block 5 is provided with caudal peduncle locating slot 27, allow the caudal peduncle locating piece 26 on the second caudal peduncle contiguous block 15 to set in the described caudal peduncle locating slot 27, the shape of caudal peduncle locating slot 27, size all are complementary with caudal peduncle locating piece 26.The caudal peduncle locating piece 26 of the second caudal peduncle contiguous block 15 is embedded in the caudal peduncle locating slot 27, thereby the first caudal peduncle contiguous block 5 and the second caudal peduncle contiguous block 15 form plug core tail handle 4.Be provided with tail optical fiber locating slot 16 corresponding to the other end that second lock pin 3 is set in the described plug core tail handle 4, described tail optical fiber locating slot 16 distributes along the axial length of plug core tail handle 4, and tail optical fiber locating slot 16 is connected with second lock pin 3.Second lock pin 3 links to each other with connecting pipe 2 corresponding to the other end that links to each other with plug core tail handle 4, and second lock pin 3 can move in connecting pipe 2.Be provided with first lock pin 1 corresponding to the other end that links to each other with second lock pin 3 in the connecting pipe 2, described first lock pin 1 is fixedlyed connected with connecting pipe 2, is provided with pre-buried optical fiber in first lock pin 1.When second lock pin 3 is mobile in connecting pipe 2, for the air in the connecting pipe 2 are discharged, reduce pre-buried optical fiber and the interior tail optical fiber connecting loss of second lock pin 3 in first lock pin 1, be provided with fibre junction portion in the connecting pipe 2.After second lock pin 3 inserted in the connecting pipe 2, the axis of the axis of second lock pin 3 and first lock pin 1 was positioned on the unified straight line.

As Fig. 4 ~ shown in Figure 7: as described in fibre junction portion comprise the optical fiber matching fluid that is positioned at connecting pipe 2, described optical fiber matching fluid is wrapped up the end that first lock pin 1 is positioned at connecting pipe 2; Be provided with vent port 31 or air discharge duct 30 corresponding to the sidewall that optical fiber matching fluid is set in the connecting pipe 2, described vent port 31 or air discharge duct 30 all are connected with connecting pipe 2.When in the connecting pipe 2 when air discharge duct 30 being set forming fibre junction portion with optical fiber matching fluid, air discharge duct 30 is provided with the position of optical fiber matching fluid and extends to the end that second lock pin 3 inserts from connecting pipe 2 correspondences, air discharge duct 30 can be for one or more.When on the connecting pipe 2 vent port 31 or air discharge duct 30 being set, second lock pin 3 be with tail optical fiber in connecting pipe 2 when first lock pin 1, air in the connecting pipe 2 along with second lock pin 3 be inserted through vent port 31 or air discharge duct 30 is discharged, after second lock pin 3 passes optical fiber matching fluid with tail optical fiber with first lock pin 1 in pre-buried optical fiber realization continue; Optical fiber matching fluid can stop entering of extraneous air, can guarantee the effect that continues between tail optical fiber and pre-buried optical fiber.

Be concaved with locating slot 14 on the outer wall of lock pin cavity 9, the through hole in described locating slot 14 and the lock pin cavity 9 is connected.Be provided with fine setting button 10 and optical fiber crimping button 11 in the locating slot 14, an end of described fine setting button 10 positioned adjacent inside casing cover 8 in locating slot 14.Fine setting button 10 is embedded in the locating slot 14 with optical fiber crimping button 11, and fine setting button 10, the shape of optical fiber crimping button 11 and the shape of locating slot 14 and lock pin cavity 9 are complementary.Fine setting button 10 is provided with fixed orifice 18 corresponding to the end of setting in the locating slot 14, optical fiber crimping button 11 is provided with pilot hole 25 corresponding to the end that is embedded in the locating slot 14, and the axis of described pilot hole 25, fixed orifice 18 and the axis of lock pin cavity 9 are located along the same line.After optical fiber crimping button 11 is embedded in the locating slot 14, optical fiber crimping button 11 is positioned at the outer end of locating slot 14 and contacts with crimping button locating piece 17 on the lock pin cavity 9, crimping button locating piece 17 is symmetrically distributed on the lock pin cavity 9, when optical fiber crimping button 11 with after crimping button locating piece 17 links to each other, can prevent the rotation of optical fiber crimping button 11.

Because optical fiber in cutting process, is difficult to guarantee the definitely smooth of fiber end face; And the out-of-flatness meeting of fiber end face forms the airspace between the optical fiber contact when fibre junction, and the existence of airspace can make the insertion loss of fibre junction still remain on the higher level.Therefore, when second lock pin 3 is installed in the plug core tail handle 4, and when plug core tail handle 4 is installed in the lock pin cavity 9, during the fibre junction portion complete connection of the interior pre-buried optical fiber of the tail optical fiber in second lock pin 3 and first lock pin 1 in connecting pipe 2, still have the part air and make the insertion loss that continues between tail optical fiber and pre-buried optical fiber bigger, influence the effect of fibre junction.In order to guarantee the effect that continues, be provided with the spring 6 that continues in the lock pin cavity 9, the described spring 6 that continues is positioned at lock pin cavity 9 corresponding to the other end that location inside casing cover 8 is set; When plug core tail handle 4 stretches in the lock pin cavity 9 corresponding to the other end that links to each other with second lock pin 3, plug core tail handle 4 passes fixed orifice 18 earlier and pilot hole 25 carries out concentric locating, plug core tail handle 4 penetrates in the spring 6 that continues after passing pilot hole 25 more then, the spring 6 that continues acts on the acting force on the plug core tail handle 4, when stoping plug core tail handle 4 to continue in lock pin cavity 9, to stretch into, can make the pre-buried optical fiber in more close first lock pin 1 of tail optical fiber in second lock pin 3, in optical fiber matching fluid, reduce the air insertion loss between tail optical fiber and pre-buried optical fiber, reached the connection status preferably between tail optical fiber and pre-buried optical fiber, the insertion loss that reduction brings when continuing because of the out-of-flatness of fiber cut end face further reduces air to the insertion loss that continues between tail optical fiber and pre-buried optical fiber.

In order to make the spring 6 that continues have the better action effect, lock pin cavity 9 is corresponding to being provided with crimping caudal peduncle 12 with location inside casing cover 8 other ends that link to each other, the end of described crimping caudal peduncle 12 is provided with crimping caudal peduncle link slot 24, described crimping caudal peduncle link slot 24 is complementary with the crimping caudal peduncle mounting blocks 20 of lock pin cavity 9 ends, and crimping caudal peduncle link slot 24 allows crimping caudal peduncle mounting blocks 20 to set.Be provided with positioning step 28 in the crimping caudal peduncle 12.The crimping caudal peduncle mounting blocks 20 of lock pin cavity 9 ends is embedded in the crimping caudal peduncle link slot 24, thus being connected lock pin cavity 9 and crimping caudal peduncle 12; After the connection, an end of the spring 6 that continues contacts with positioning step 28, and the other end and optical fiber crimping button 11 contact corresponding to the end that pilot hole 11 is set, and the spring 6 that continues is in compressive state.The acting force that spring 6 and the plug core tail handle of continuing is 4 acts on the plug core tail handle 4 by optical fiber crimping button 11.

As Fig. 3 with shown in Figure 8: the other end that crimping caudal peduncle 12 correspondences link to each other with lock pin cavity 9 is provided with crimping tail cover 13, be provided with the tail cover installing and locating groove 32 of symmetrical distribution in the described crimping tail cover 13, described tail cover installing and locating groove 32 is complementary with the tail cover installing and locating piece 33 of crimping caudal peduncle 12 ends.Crimping tail cover 13 is enclosed within on the crimping caudal peduncle 12, and tail cover installing and locating piece 33 is positioned at tail cover installing and locating groove 32; When promotion crimping tail cover 13 is mobile on crimping caudal peduncle 12, tail cover installing and locating piece 33 is separated with tail cover installing and locating groove 32, after rotating crimping tail cover 13, tail cover installing and locating piece 33 can stop crimping tail cover 13 to move axially on crimping caudal peduncle 12, avoids crimping tail cover 13 to come off from crimping caudal peduncle 12.

Location inside casing cover 8 is provided with locating outer frame cover 7, and described locating outer frame cover 7 is complementary with location inside casing cover 8.Difference according to location inside casing cover 8,7 shapes of locating outer frame cover etc. forms SC, the FC of fibre junction or the connector construction of LC respectively, thereby links to each other with corresponding interface by location inside casing cover 8, locating outer frame cover 7, and versatility is good, installs easy to connect.Be provided with corresponding to an end that links to each other with lock pin cavity 9 on the location inside casing cover 8 and be connected pilot hole 22, described connection pilot hole 22 is corresponding with the lock pin cavity mounting blocks 19 on the lock pin cavity 9, and connection pilot hole 22 permission lock pin cavity mounting blocks 19 are set.When location inside casing cover 8 was enclosed within on the lock pin cavity 9, lock pin cavity mounting blocks 19 was embedded at and connects in the pilot hole 22, had guaranteed location inside casing cover 8 reliabilities that are connected with lock pin cavity 9.Convex with inside casing cover locating piece 21 on the location inside casing cover 8, described inside casing cover locating piece 21 and inside casing on the locating outer frame cover 7 overlap and are connected stopper slot 23 and are complementary; After locating outer frame cover 7 is installed on the location inside casing cover 8, inside casing cover locating piece 21 on the location inside casing cover 8 is embedded at the inside casing cover and connects in the stopper slot 23, overlap the corresponding matching that is connected stopper slot 23 by inside casing cover locating piece 21 with inside casing, can guarantee the displacement of 8 in locating outer frame cover 7 and location inside casing cover.

As Fig. 1 ~ shown in Figure 8: during use, tail optical fiber penetrates crimping tail cover 13, crimping caudal peduncle 12 backs and penetrates in the plug core tail handle 4 in the lock pin cavity 9.Tail optical fiber penetrates in the plug core tail handle 4 and second lock pin 3 by the tail optical fiber locating slot 16 of plug core tail handle 4 ends, and tail optical fiber stretches out second lock pin 3 corresponding to the end that links to each other with connecting pipe 2.Be provided with pre-buried optical fiber in first lock pin 1.When continuing, second lock pin 3 stretches in the connecting pipe 2 corresponding to the other end that links to each other with plug core tail handle 4, along with second lock pin 3 constantly pushes in the connecting pipe 2, gas in the connecting pipe 2 can be discharged from vent port 31 in the connecting pipe 2 or air discharge duct 30, after second lock pin 3 passes optical fiber matching fluid, pre-buried optical fiber complete connection under the effect of optical fiber matching fluid in the tail optical fiber in second lock pin 3 and first lock pin 1, optical fiber matching fluid has stoped reentering of air, reduces the insertion loss between tail optical fiber and pre-buried optical fiber.But because the out-of-flatness that tail optical fiber and pre-buried optical fiber end cause when cutting, the connecting loss between tail optical fiber and pre-buried optical fiber still can be subjected to air influence between the out-of-flatness end face.In order to improve the effect that continues of tail optical fiber and pre-buried optical fiber, after the tail optical fiber in the pre-buried optical fiber in first lock pin 1 and second lock pin 3 tentatively continued, plug core tail handle 4 stretched in the lock pin cavity 9 corresponding to the other end that links to each other with second lock pin 3.The end of plug core tail handle 4 is passed the fixed orifice 18 of fine setting button 10 successively and the pilot hole 25 of optical fiber crimping button 11 positions, and the axis of the axis of plug core tail handle 4 and lock pin cavity 9 is located along the same line.The external diameter of plug core tail handle 4 varies in size, and the external diameter of plug core tail handle 4 reduces to the end that tail optical fiber locating slot 16 is set gradually from an end that links to each other with second lock pin 3.Plug core tail handle 4 is by after finely tuning button 10 and optical fiber crimping button 11 installing and locating, and plug core tail handle 10 is imported in the spring 6 that continues.Because the external diameter difference of plug core tail handle 4, plug core tail handle 4 is complementary with the external diameter of optical fiber crimping button 11 junctions and the aperture of pilot hole 25; The spring 6 that continues is in compressive state at optical fiber crimping button 11 and 28 of positioning steps, after in plug core tail handle 4 is imported pilot hole 25 into, the spring 6 that continues acts on acting force on the plug core tail handle 4 by optical fiber crimping button 11, can accurately locate the installation of plug core tail handle 4, simultaneously, plug core tail handle 4 is when pushing, can make the pre-buried optical fiber in more close first lock pin 1 of tail optical fiber in second lock pin 3, tail optical fiber is further near behind the pre-buried optical fiber, can discharge the air between tail optical fiber and pre-buried optical fiber, improve the continuation effect between tail optical fiber and pre-buried optical fiber, the optical fiber end out-of-flatness is to the influence of fibre junction when having reduced cutting.After plug core tail handle 4 is by spring 6 and 10 crimping of the optical fiber crimping button location of continuing, move in locating slot 14 by fine setting button 10, because the external diameter difference of plug core tail handle 4, fine setting button 10 is when plug core tail handle 4 moves corresponding to the end that second lock pin 3 is set, plug core tail handle 4 can clamp the tail optical fiber that is positioned at plug core tail handle 4, connects reliable.After plug core tail handle 4 connects, crimping tail cover 13 is enclosed within on the crimping caudal peduncle 12, makes the opening degree of crimping caudal peduncle 12 ends clamp tail optical fiber; Promote and rotate crimping tail cover 13, assurance crimping tail cover 13 reliabilities that are connected with crimping caudal peduncle 12.The connecting pipe 2 and first lock pin 1 stretch in the location inside casing cover 8, and pass location inside casing cover.Location inside casing cover 8 links to each other with lock pin cavity 9, and locating outer frame cover 7 is installed in the location inside casing and overlaps on 7, finishes the installation process that continues of overall optical fiber connector.

One end of the utility model plug core tail handle 4 is provided with second lock pin 3, tail optical fiber locating slot 16 in second lock pin 3 and the plug core tail handle 4 is connected, and the pre-buried optical fiber in the tail optical fiber in second lock pin 3 and first lock pin 1 is finished for the first time by connecting pipe 2 interior fibre junction portions and continued; Plug core tail handle 4 stretches in the lock pin cavity 9 corresponding to the other end that second lock pin 3 is set, the fixed orifice 18 of fine setting button 10 and 25 pairs of plug core tail handle 4 of pilot hole of optical fiber crimping button 11 position, the restoring force of spring 6 of continuing acts on the plug core tail handle 4 by optical fiber crimping button 11, second lock pin 3 of plug core tail handle 4 ends is moved to the direction of first lock pin 1 in connecting pipe 2, and promptly tail optical fiber in second lock pin 3 and the pre-buried optical fiber in first lock pin 1 move; By moving of second lock pin 3, air between tail optical fiber and pre-buried optical fiber end can be discharged once more, under the parcel of optical fiber matching fluid, pre-buried optical fiber in the tail optical fiber in second lock pin 3 and first lock pin 1 reaches the effect that continues preferably, tail optical fiber and pre-buried fibre junction are subjected to the influence of respective air when having reduced the fiber cut out-of-flatness, reduced the insertion loss that continues of tail optical fiber and pre-buried optical fiber, improved the effect of fibre junction, compact conformation, attended operation convenience, stability and reliability height, wide accommodation, safe and reliable.

Claims (10)

1. fast fibre connector comprises lock pin cavity (9) and is positioned at the location inside casing cover (8) of described lock pin cavity (9) one end ends; Be provided with plug core tail handle (4) in the lock pin cavity (9), end in the described plug core tail handle (4) is provided with fixedly connected second lock pin (3), the other end in the plug core tail handle (4) is provided with tail optical fiber locating slot (16), described tail optical fiber locating slot (16) is along the axial distribution of plug core tail handle (4), and tail optical fiber locating slot (16) is connected with second lock pin (3); Second lock pin (3) stretches in the connecting pipe (2) corresponding to the other end that links to each other with plug core tail handle (4), and can move in connecting pipe (2); Be provided with fixedly connected first lock pin (1) corresponding to the other end that links to each other with second lock pin (3) in the connecting pipe (2); Be provided with the fibre junction portion that is used for first lock pin (1), second lock pin (3) exhaust when continuing in the connecting pipe (2); Connecting pipe (2) and first lock pin (1) stretch in the location inside casing cover (8), and first lock pin (1) passes in location inside casing cover (8); It is characterized in that: be provided with the spring that continues (6) in the described lock pin cavity (9), the described spring that continues (6) is positioned at the lock pin cavity (9) and the other end of locating inside casing cover (8); Plug core tail handle (4) correspondence is provided with the end of tail optical fiber locating slot (16) and stretches in the lock pin cavity (9), and penetrates in the spring that continues (6); Plug core tail handle (4) and the corresponding connection of wiring spring (6).

2. fast fibre connector according to claim 1 is characterized in that: described fibre junction portion comprises the optical fiber matching fluid that is positioned at connecting pipe (2), and described optical fiber matching fluid is wrapped up the end that first lock pin (1) is positioned at connecting pipe (2); Connecting pipe (2) with the corresponding sidewall of optical fiber matching fluid be set be provided with vent port (31), described vent port (31) is connected with connecting pipe (2).

3. fast fibre connector according to claim 1 is characterized in that: described fibre junction portion comprises the optical fiber matching fluid that is positioned at connecting pipe (2), and described optical fiber matching fluid is wrapped up the end that first lock pin (1) is positioned at connecting pipe (2); In the connecting pipe (2) with the corresponding sidewall of optical fiber matching fluid be set be provided with plurality of rows air drain (30), described air discharge duct (30) is provided with optical fiber matching fluid from interior the correspondence of connecting pipe (2) sidewall is to end extension that second lock pin (3) inserts.

4. fast fibre connector according to claim 1, it is characterized in that: described lock pin cavity (9) is provided with crimping caudal peduncle (12) corresponding to the other end that links to each other with location inside casing cover (8), be provided with positioning step (28) in the described crimping caudal peduncle (12), described positioning step (28) links to each other with an end of the spring that continues (6), the other end of spring (6) of continuing stretches in the lock pin cavity (9), and is enclosed within on the plug core tail handle (4).

5. fast fibre connector according to claim 4, it is characterized in that: be concaved with locating slot (14) on the described lock pin cavity (9), be provided with fine setting button (10) and optical fiber crimping button (11) in the described locating slot (14), described optical fiber crimping button (11) is the corresponding contiguous spring (6) that continues in locating slot (14); The end that fine setting button (10) is positioned at locating slot (14) is provided with fixed orifice (18), the end that optical fiber crimping button (11) is positioned at locating slot (14) is provided with pilot hole (25), and the axis of described pilot hole (25), fixed orifice (18) and the axis of lock pin cavity (9) are located along the same line; The spring (6) that continues links to each other with the corresponding bottom that pilot hole (25) is set with optical fiber crimping button (11) of the other end that positioning step (28) links to each other.

6. fast fibre connector according to claim 5, it is characterized in that: described lock pin cavity (9) is provided with the crimping button locating piece (17) of symmetrical distribution, described optical fiber crimping button (11) is embedded in the locating slot (14), the shape of optical fiber crimping button (11) and lock pin cavity (9) are complementary, and the end of optical fiber crimping button (11) links to each other with crimping button locating piece (17).

7. fast fibre connector according to claim 1, it is characterized in that: described location inside casing cover (8) is provided with locating outer frame cover (7), the shape of described locating outer frame cover (7) is complementary with the shape of location inside casing cover (8), and location inside casing cover (8) can move in locating outer frame cover (7).

8. fast fibre connector according to claim 4 is characterized in that: described crimping caudal peduncle (12) is provided with crimping tail cover (13).

9. fast fibre connector according to claim 8, it is characterized in that: be provided with the tail cover installing and locating groove (32) of symmetrical distribution in the described crimping tail cover (13), the shape of described tail cover installing and locating groove (32) and the tail of crimping caudal peduncle (12) end cover installing and locating piece (33) are complementary.

10. fast fibre connector according to claim 1, it is characterized in that: described lock pin cavity (9) convexes with lock pin cavity mounting blocks (19) corresponding to the end with location inside casing cover (8), and location inside casing cover (8) is provided with the connection pilot hole (22) that allows lock pin cavity mounting blocks (19) to set.

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