CN209560143U - A kind of reinforced SC optical fiber connector - Google Patents

Abstract

The utility model embodiment discloses a kind of reinforced SC optical fiber connector, including shell, outer frame set, lock pin and tail sleeve, the outer wall of lock pin one end is equipped with rotation stop pin, the inner wall of shell is equipped with cotter way corresponding with rotation stop pin, one end grafting of lock pin is mounted in outer frame set, socket is equipped with the limit sleeve between rotation stop pin and outer frame set on lock pin, lock pin passes through the fixed tapered fiber gripper casing for being plugged with head as microcephaly of the other end of outer frame set, it is socketed to be equipped on outer wall outside fiber gripper casing and sets threaded tightening casing, the outer wall thread of tightening casing is connected with cutting ferrule, axial limit is carried out to lock pin by limit sleeve, when optical fiber is by biggish pulling force, it will drive the tightening casing connecting with fiber gripper and minute movement occur, and squeeze fiber gripper set tube wall, keep fiber gripper casing further right Optical fiber is clamped, and strengthens the fixed effect to optical fiber.

Description

A kind of reinforced SC optical fiber connector

Technical field

The utility model embodiment is related to technical field of communication equipment, and in particular to a kind of reinforced SC optical fiber connector.

Background technique

It is well known that optical fiber connector is the device for carrying out detachable (activity) connection between optical fiber and optical fiber, it is light Fine two end face precisions docking is got up, so that the light energy of launching fiber output can be coupled in reception optical fiber to the maximum extent It goes, and makes to influence to minimize caused by system since it intervenes optical link, optical fiber connector presses the difference of transmission medium The single mode and multimode connector of common silica-based optical fibers can be divided into, such as connected by the optical fiber of transmission medium of plastic cement there are also other Device；It can be divided by connector structure type: FC, SC, ST, LC, D4, DIN, MU, MT etc. various forms.

When optical fiber is mounted on optical fiber connector, it is desirable that optical fiber connector can tightly block optical fiber, prevent optical fiber from existing Cause optical fiber and optical fiber connector to be detached from due to the pulling force in self gravity or the external world pulls, or with optical fiber connector poor contact, Cause data transmission impacted etc., clamping of the existing optical fiber connector because of design and to manually installed consideration, to optical fiber Power is fixed and limited, it is difficult to guarantee that optical fiber and optical fiber connector remain firm connection.

Utility model content

For this purpose, the utility model embodiment provides a kind of reinforced SC optical fiber connector, pass through what is connect with fiber gripper Tightening casing squeezes the tube wall for the fiber gripper casing that stub end is plugged in tightening casing, when pulling optical fiber, makes Fiber gripper casing further clamps optical fiber, to solve in the prior art since clamping force of the optical fiber connector to optical fiber is inadequate Clamping force it is excessive caused by optical fiber be easily pulled or optical fiber it is easy to aging, damage the problem of.

To achieve the goals above, the embodiments of the present invention provides the following technical solutions:

The utility model provides a kind of reinforced SC optical fiber connector, including shell, fixed clamping inside the shell outer Frame set, lock pin and tail sleeve, the outer wall of described lock pin one end are equipped with rotation stop pin, and the inner wall of the shell is equipped with and rotation stop pin pair One end grafting of the cotter way answered, the lock pin is mounted in outer frame set, and socket is equipped with positioned at rotation stop pin and outer on the lock pin Limit sleeve between frame set, the lock pin pass through the fixed tapered optical fiber for being plugged with head as microcephaly of the other end of outer frame set Gripping sleeve, the fiber gripper casing is socketed to be equipped on outer wall outside sets threaded tightening casing, the tightening casing Outer wall thread is connected with cutting ferrule, and the tail portion rotation of the cutting ferrule is plugged with connection ring, and the tail sleeve socket is mounted in connection ring.

Further, the tail portion of the lock pin is equipped with a circle convex edge, and convex edge is equipped with the card slot on head and sidewall opening, And the sliding slot on the head and tail portion and sidewall opening through convex edge.

Further, it is equipped on the inner wall of fiber gripper bushing head one end and to be slidably matched with sliding slot and card slot Fixture block.

Further, several are offered on the side wall of the fiber gripper casing and tightening casing equally distributed to open Seam.

Further, the tail portion of the fiber gripper casing is equipped with cylindrical tubes.

The embodiments of the present invention has the advantages that

(1) one end of optical fiber is sequentially passed through into the aperture on tail sleeve, tightening casing, fiber gripper casing and lock pin, then Cutting ferrule is rotated, and the outer wall of the inner wall of cutting ferrule or tightening casing is tapered, when rotating cutting ferrule moves cutting ferrule along tightening casing, The diameter for tightening casing internal openings can be made to become smaller, so that tightening casing be made to be clamped the optical fiber in its aperture, prevent light Fibre is rotated and is moved.

(2) it is fixedly connected due to fiber gripper casing with lock pin, and due to the presence of limit sleeve axial direction will not occur for lock pin Movement, to can make to move the tightening casing of fiber gripper when the tail end of optical fiber is by larger pulling force, and when receiving When fixed pipe is along the outer wall sliding of the fiber gripper casing of taper, aperture in the tail end of fiber gripper casing major part can be made into one Step is shunk, so that the fiber gripper casing originally with fiber gripper cooperation be made further to be clamped to optical fiber, is not only improved The pulling force that can be born after optical fiber installation, and only when optical fiber is by sufficiently large pulling force, fiber gripper casing and shrinks set Guan Caihui increases the clamping dynamics to optical fiber, avoids optical fiber and is easy to happen aging and damage under long-term high-clamping force degree, And it is convenient for the installation of optical fiber.

Detailed description of the invention

It, below will be to reality in order to illustrate more clearly of the embodiments of the present invention or technical solution in the prior art It applies mode or attached drawing needed to be used in the description of the prior art is briefly described.It should be evident that attached in being described below Figure is only exemplary, for those of ordinary skill in the art, without creative efforts, can be with It is extended according to the attached drawing of offer and obtains other implementation attached drawings.

Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for Those skilled in the art understands and reads, and is not intended to limit the utility model enforceable qualifications, therefore does not have technology On essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the utility model institute energy Under the effect of generation and the purpose that can reach, it should all still fall in the revealed technology contents of the utility model and obtain the model that can cover In enclosing.

The term of cited such as "upper", "lower", "left", "right", " centre ", is merely convenient to describe in this specification Be illustrated, rather than to limit the enforceable range of the utility model, relativeness is altered or modified, without substantive change Under technology contents, when being also considered as the enforceable scope of the utility model.

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the fiber gripper cannula structure schematic diagram of the utility model；

Fig. 3 is the tightening casing structural schematic diagram of the utility model；

Fig. 4 is the inserting core structure schematic diagram of the utility model.

In figure:

1- shell；2- outer frame set；3- lock pin；4- tail sleeve；5- rotation stop pin；6- limit sleeve；7- fiber gripper casing；8- tightening Casing；9- cutting ferrule；10- connection ring；11- cylindrical tubes；

301- card slot；302- sliding slot；

501- cotter way；

701- fixture block.

Specific embodiment

The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this Content disclosed by specification understands other advantages and effect of the utility model easily, it is clear that described embodiment is The utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field is common Technical staff's every other embodiment obtained without making creative work belongs to the utility model protection Range.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the utility model provides a kind of reinforced SC optical fiber connector, including outer Outer frame set 2, lock pin 3 and the tail sleeve 4 of shell 1, fixed clamping in shell 1, the outer wall of described 3 one end of lock pin are equipped with rotation stop pin 5, The inner wall of the shell 1 is equipped with cotter way 501 corresponding with rotation stop pin 5, is socketed and is equipped with positioned at rotation stop pin 5 on the lock pin 3 Limit sleeve 6 between outer frame set 2, outer frame set 2, which connects and fixes, to be mounted in shell 1, and makes 3 head of lock pin by limit sleeve 6 The holding of rotation stop pin 5 of one end is plugged on cotter way 501, to prevent lock pin 3 from rotating.

Further, one end grafting of the lock pin 3 is mounted in outer frame set 2, and the lock pin 3 passes through the another of outer frame set 2 One end is fixed to be plugged with the tapered fiber gripper casing 7 that head is microcephaly, and socket is equipped with outside the fiber gripper casing 7 Threaded tightening casing 8 is set on outer wall, the outer wall thread of the tightening casing 8 is connected with cutting ferrule 9.

Specifically, sequentially passing through opening on tail sleeve 4, tightening casing 8, fiber gripper casing 7 and lock pin 3 for one section of optical fiber Then hole rotates cutting ferrule 9, and the outer wall of the inner wall of cutting ferrule 9 or tightening casing 8 is tapered, makes cutting ferrule 9 along receipts in rotation cutting ferrule 9 When fixed pipe 8 is mobile, the diameter for tightening 8 internal openings of casing can be made to become smaller, to make to tighten casing 8 for the optical fiber in its aperture It is clamped, prevents optical fiber from rotating and moving, also, since fiber gripper casing 7 is fixedly connected with lock pin 3, and lock pin 3 Due to the presence of limit sleeve 6, axial movement will not occur, to can make when the tail end of optical fiber is by larger pulling force by light Small movement occurs for the tightening casing 8 that fibre clamps, and when tightening casing 8 is slided along the outer wall of the fiber gripper casing 7 of taper When, the aperture in the tail end of 7 major part of fiber gripper casing can be made further to shrink, to make the light with fiber gripper cooperation originally Fine gripping sleeve 7 is further clamped optical fiber, not only increases the pulling force that can be born after optical fiber installation, and only in light When fibre is by sufficiently large pulling force, fiber gripper casing 7 and shrink sleeve 8 can just increase the clamping dynamics to optical fiber, avoid Optical fiber is easy to happen aging and damage under long-term high-clamping force degree, and is convenient for the installation of optical fiber.

And the tail portion of the lock pin 3 is equipped with a circle convex edge, and convex edge is equipped with the card slot 301 on head and sidewall opening, with And the sliding slot 302 on the head and tail portion and sidewall opening through convex edge, pacify on the inner wall of described 7 head one end of fiber gripper casing Equipped with the fixture block 701 being slidably matched with sliding slot 302 and card slot 301.

When installing fiber gripper casing 7, the fixture block 701 on 7 inner wall of fiber gripper casing is directed at sliding slot 302, makes light Fine gripping sleeve 7 is slided along 3 outer wall of lock pin, when fixture block 701, which slides into, is detached from sliding slot 302, is rotated fiber gripper casing 7, is made Fixture block 701 slide into card slot 301 in, connect fiber gripper casing 7 with circumferentially fixed lock pin 3, thus to fiber gripper casing 7 into The circumferential fixation of row, prevents it from rotating, also, since limit sleeve 6 jacks up lock pin 3 to head one end, makes 3 tail end of lock pin Convex edge and the tail end of outer frame set 2 push against, prevent fiber gripper casing 7 from occurring axial to move and cause fixture block 701 from card slot It is skidded off in 301.

Preferably, to offer several on the side wall of the fiber gripper casing 7 and tightening casing 8 equally distributed It cracks, be conducive to fiber gripper casing 7 and tighten the contraction of 8 open interior of casing, it is ensured that the clamping effect of optical fiber.

Preferably, the tail portion of the fiber gripper casing 7 is equipped with the cylindrical tubes 11 that one section of side wall cracks, and passes through cylinder Conduit 11 prevents tightening casing 8 from shifting during exercise, is conducive to the uniform of 7 tube wall stress of fiber gripper casing, reinforcement pair The clamping effect of optical fiber prevents the tube wall unbalance stress of fine gripping sleeve 7 and the optical fiber in fine gripping sleeve 7 is caused to be rolled over Damage.

The tail portion rotation of the cutting ferrule 9 is plugged with connection ring 10, and the socket of tail sleeve 4 is mounted in connection ring 10, thus The rotation of cutting ferrule 9 is driven when preventing tail sleeve 4 from rotating and leads to the clamping action failure for tightening casing 8 to optical fiber.

It should be added that the rotation stop pin 5 with lock pin 3 is integrally manufactured forms, and the tail portion of rotation stop pin 5 is in cone Shape rotation stop pin 5 and is damaged or is detached from lock pin 3 thus when avoiding optical fiber by larger pulling force, and lock pin 3 and optical fiber are caused Gripping sleeve 7 is pulled, and fiber gripper casing 7 is caused to lose the effect further clamped to optical fiber, in addition, 6 head of limit sleeve The profile of inner wall is bonded with the profile of 5 tail portion of rotation stop pin, is made 5 uniform force of rotation stop pin, is not susceptible to damage.

It should be strongly noted that 7 script of fiber gripper casing just has the function of being fixedly clamped to fiber gripper, in light When fibre is by biggish pulling force, it so that the tightening casing 8 connecting with fiber gripper is squeezed the tube wall of fiber gripper casing 7, make Aperture in fiber gripper casing 7 reduces, so that further the optical fiber in 7 aperture of fiber gripper casing is clamped, also, Tightening casing 8 is detached from the related fittings that one end that is mobile and leading to optical fiber head and optical fiber connector occurs in order to prevent, When installing optical fiber, optical fiber should be made to form one end bending section between tightening casing 8 and fiber gripper casing 7.

Although above having made detailed description to the utility model with generality explanation and specific embodiment, On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art 's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want Seek the range of protection.

Claims (5)

1. a kind of reinforced SC optical fiber connector, outer frame set (2), lock pin including shell (1), fixed clamping in shell (1) (3) and tail sleeve (4), which is characterized in that the outer wall of described lock pin (3) one end is equipped with rotation stop pin (5), the shell (1) it is interior Wall is equipped with cotter way (501) corresponding with rotation stop pin (5), and one end grafting of the lock pin (3) is mounted in outer frame set (2), institute It states socket on lock pin (3) and the limit sleeve (6) between rotation stop pin (5) and outer frame set (2) is installed, the lock pin (3) passes through The other end of outer frame set (2) is fixed to be plugged with the tapered fiber gripper casing (7) that head is microcephaly, and the fibre clip is fixed Pipe (7) is socketed to be equipped on outer wall outside sets threaded tightening casing (8), and the outer wall thread of tightening casing (8) is connected with The tail portion rotation of cutting ferrule (9), the cutting ferrule (9) is plugged with connection ring (10), and tail sleeve (4) socket is mounted on connection ring (10) On.

2. a kind of reinforced SC optical fiber connector according to claim 1, which is characterized in that the tail portion of the lock pin (3) Equipped with a circle convex edge, and convex edge is equipped with the card slot (301) on head and sidewall opening, and head and tail portion through convex edge and The sliding slot (302) of sidewall opening.

3. a kind of reinforced SC optical fiber connector according to claim 2, which is characterized in that the fiber gripper casing (7) fixture block (701) being slidably matched with sliding slot (302) and card slot (301) is installed on the inner wall of head one end.

4. a kind of reinforced SC optical fiber connector according to claim 1, which is characterized in that the fiber gripper casing (7) and several are offered on the side wall of tightening casing (8) equally distributed to crack.

5. a kind of reinforced SC optical fiber connector according to claim 1, which is characterized in that the fiber gripper casing (7) tail portion is equipped with cylindrical tubes (11).