CN110426790A - Without spring push/pull formula optical fiber connector - Google Patents

Abstract

A kind of optical fiber connector with push/pull tongue piece, wherein the tongue piece is by intermediate arm bias forward, the intermediate arm pushes on the chamfering surface of width direction groove, to push forward to the push/pull tongue piece in the hook portion in the case where not using attached spring.The connector is fixed in adapter jack by hook portion.

Description

Without spring push/pull formula optical fiber connector

Cross reference to related applications

This application claims the entitled " SPRINGLESS submitted on May 1st, 2018 according to 35U.S.C.119 (e) The U.S. Provisional Application No.62/665 of PUSH/PULL FIBER OPTIC CONNECTOR ", 217 priority, and this Shen It please be entitled " the NARROW WIDTH ADAPTERS AND CONNECTORS WITH submitted on September 29th, 2017 The cip application of the U.S. non-provisional application 15/720,980 of MODULAR LATCHING ARM ", the non-provisional application claims: Entitled " the NARROW WIDTH ADAPTERS AND CONNECTORS WITH MODULAR submitted on 2 9th, 2017 The U.S. Provisional Application No.62/457,150 of LATCHING ARM "；On August 17th, the 2017 entitled " NARROW submitted The U.S. Provisional Application No.62/ of WIDTH ADAPTERS AND CONNECTORS WITH MODULAR LATCHING ARM " 546,920；Entitled " the NARROW WIDTH ADAPTERS AND CONNECTORS WITH submitted on January 30th, 2017 The U.S. Provisional Application No.62/452,147 of SPRING LOADED REMOTE RELEASE "；What on December 6th, 2016 submitted Entitled " NARROW WIDTH ADAPTERS AND CONNECTORS WITH SPRING LOADED REMOTE The U.S. Provisional Application No.62/430,560 of RELEASE "；And entitled " the NARROW that on December 5th, 2016 submits The U.S. Provisional Application No.62/ of WIDTH ADAPTERS AND CONNECTORS WITH MODULAR LATCHING ARM " 430,067, entire contents are incorporated herein by reference.

Technical field

The present invention relates to optical fiber connectors and adapter, more particularly it relates to have be attached to the pushing away of latch piece/ The optical fiber connector of pull tab piece or stretcher, when pulling the tongue piece connector released from adapter jack latch or by Release.

Background technique

Modem high capacity fibre system is connected usually using between fibre ribbon carry out system.Since there are multiple companies in light-path Contact, it is therefore desirable to which two fibre-optical splices or a connector are cooperated to another connector.By two fibre-optical splices or one In the cooperation of connector and connector, mechanical and optical alignment is most important.Slight misalignment will lead to serious signal damage It loses, especially in the case where the connector and connector for multi fiber band and multi-thread cable.Therefore, it is necessary to a kind of adapter, institutes State that adapter is able to maintain and fixes two fibre-optical splices or a connector is precisely aligned with connector.Adapter design is also answered This makes the installation of connector and connector be easy to carry out on-site assembly enough.In addition, the adapter should be durable design and/ Or durable material, for repeating to mount and dismount.

Summary of the invention

According to the present invention, optical fiber connector and socket cooperate, and the socket can be structured to receive push/pull tongue piece formula light The opening of fiber connector.Optical fiber connector includes: the push/pull tongue piece for being connected to connector front body, which receives one Or multiple connectors；Corresponding connector spring, push/pull tongue piece have a pair of of arm, and the pair of arm is configured to partially around encirclement The rear body of connector.Tongue piece has one or more protruding portions, and tongue piece is fixed to front by one or more of protruding portions Body.Rear body in traditional push/pull tongue piece formula connector has spring, which is located at the rear of push/pull tongue piece and should Spring bias push/pull tongue piece forward.Connector is pushed into socket by user, and the front top surface of connector and front Body is latched in the hook portion being contained in socket.This is secured the connectors in socket.

In the present invention, spring is removed, and a pair of of grasping part is prominent from the top surface of rear body.The grasping part has Antelabium, the antelabium fix push/pull tongue piece but tongue piece are allowed to move along a channel, longitudinal axis of the channel along connector Extend preset distance.Longitudinal axis is defined as in the same plane from front to rear portion or from close to cable and protective cover Close end of the distal portion to close connector.The shelf corresponding to rear body antelabium on connector has specific length, the length It is applying corresponding to user in the remote end part of connector, so as to it is fixed or from adapter jack remove connector traveling or Push/pull.

The close end of push/pull tongue piece has chamfering or inclined surface, the surface and is fixed in the hook portion in socket Between arm engage.Intermediate arm is lifted on tongue piece surface, this lifts a pair of outer arm in turn.Hook is integrally formed in these arms and hook portion ontology Portion.It is intermediate when groove at the top surface that intermediate arm is bonded on connector close end because groove is cut with a gradient Arm pushes forward tongue piece.When user is using cable/protective cover insertion tongue piece, which, which pushes forward, draws/pushes away tongue piece, and External arm is fallen into groove, to be secured the connectors in socket by hook portion.

In another embodiment, the type of multiple hook portions can be deployed in adapter jack.As described above, tongue Intermediate arm is lifted on piece surface.

Detailed description of the invention

Hereinafter with reference to attached drawing embodiment of the present invention will be described in more detail, in the accompanying drawings:

Figure 1A is depicted with push/pull tongue piece fiber adapter and the dustproof cover removed from the fiber adapter；

Figure 1B depicts the exploded view of the connector of Figure 1A；

Fig. 1 C1 is the perspective view of the connector of Figure 1A, wherein having magnification region；

Fig. 1 C2 is the enlarged view of Fig. 1 C1, and it illustrates push/pull tongue piece springs；

Fig. 1 C3 is the magnification region of Fig. 1 C1, and it illustrates the cross section views of push/pull spring；

Fig. 1 D is the perspective view with the connector of Figure 1A of short protective cover and long push/pull tongue piece；

Fig. 1 E is the exploded view of the connector of Fig. 1 D, and it illustrates the push/pull tongue piece springs before being inserted into rear body；

Fig. 2A is inserted into socket so as to the perspective view for the hook portion being fixed on connector in the socket.

Fig. 2 B is the face upwarding view of the hook portion of Fig. 2A；

Fig. 3 A is the perspective view of connector of the invention；

Fig. 3 B is the exploded view of the connector of Fig. 3 A；

Fig. 4 is the exploded view of the connector of Fig. 3 A, and it illustrates the rear bodies of substitution；

Fig. 5 A is the close end view of the amplification of the rear body of Fig. 4, the fixed push/pull tongue piece of the rear body；

Fig. 5 B is the close end view of the amplification of the rear body with the Fig. 4 for splitting cross section；

Fig. 6 A is the perspective view of the push/pull tongue piece of Fig. 5 A, which is attached to the rear body of Fig. 4；

Fig. 6 B is the perspective view of the push/pull tongue piece for the rear body for being fixed to Fig. 4.

Fig. 6 C is the perspective view for being connected the fixed push/pull tongue piece of device rear body；

Fig. 7 A is the perspective view of the connector close end when hook portion engages push/pull tongue piece front end；

Fig. 7 B is the viewgraph of cross-section of the connector close end when hook portion engages push/pull tongue piece front end；

Fig. 7 C is the perspective view of the close end of the connector when hook portion arm enters width direction groove；

Fig. 7 D is the viewgraph of cross-section of Fig. 7 C；

Fig. 7 E is during fixed connection device along the cross-sectional view of the hook portion intermediate arm of inclined ramp；

Fig. 7 F is the perspective view of the close end of the connector when external arm is retained in width direction groove；

Fig. 7 G is the viewgraph of cross-section of Fig. 7 F, and it illustrates the intermediate arms along inclined ramp；

Fig. 8 is the perspective view of connector according to the present invention；

Fig. 9 is the exploded view of the connector of Fig. 8；

Figure 10 is the enlarged view of the close end of the connector of Fig. 8；

Figure 11 A is the perspective view of the hook portion of substitution；

Figure 11 B is the birds-eye perspective of the hook portion of Figure 11 A；

Figure 12 A is the perspective view of the close end of the connector of the Fig. 8 engaged with the hook portion of Figure 11 A；

Figure 12 B is the viewgraph of cross-section of Figure 12 A；

Figure 13 A be start the connector for the Fig. 8 being mounted on the hook portion of Figure 11 A in width direction groove close end it is saturating View；

Figure 13 B is the viewgraph of cross-section of Figure 13 A；

Figure 14 is the viewgraph of cross-section of the hook portion of Figure 11 A of part engaged width direction groove；

Figure 15 A is the perspective view of the hook portion of Figure 11 A, and the hook portion is bonded in width direction groove to be fixedly connected Device；

Figure 15 B is the viewgraph of cross-section of Figure 15 A；

Specific embodiment

In the following description, it as preferred example, illustrates for cooperating the opposite of different type or same type Multiple fiber optical connector equipment.It will be apparent to those skilled in the art that do not depart from the scope of the present invention and It in the case where spirit, can modify, the modification includes addition and/or replacement.It can be omitted detail, in order to avoid make this Invention indigestion；However, writing the disclosure is to enable those skilled in the art without excessive experiment the case where Under practice teaching herein.

Figure 1A depicts traditional push/pull formula connector, includes front body 110；Be formed as the one of push/pull tongue piece 120 Partial a pair of of tongue piece 125, which, which is configured to surround, surrounds connector shell 127 and cable/protection shade assembly 108.Push/pull tongue piece 120 has the close end close to connector 102, which has width direction groove 117 and front body Sloped region 123 on 110 outer surface.Dustproof cover 101 can be used for protecting the joints from the influence of clast.Figure 1B is depicted The exploded view of Figure 1A.The component of connector 100A is separated or is resolved into connector 100B.B referring to Fig.1, push/pull tongue piece 120 have Have: tongue piece or handle 125；Biasing spring 105.2；First fixed salient 124a and the second fixed salient 124b；Ramp 123a, a part of the ramp as sloped region 123；And convex surfaces 122 and front inclined-plane or chamfering 121.Gu Determine in corresponding opening or the groove that protruding portion is configured to be locked on the outer surface of connector body, to help push/pull tongue Piece 120 is fixed to longitudinal movement of the connector 100A without interfering push/pull tongue piece 120.As known in the art, bias Spring 105.2 pushes forward push/pull tongue piece 120, which is removed, the optical fiber connector with push/pull tongue piece is led It is non-conspicuous improvement for domain.As described in greater detail below, in the engagement of chamfering 121 insertion adapter jack The intermediate hook arm (not shown) of hook portion.The chamfer configuration is limited until the arm reaches by top surface 122 at lifting intermediate hook arm Distance.As described below, intermediate arm is connected to a pair of outer arm, therefore when intermediate arm is lifted, external arm is seen that the upwardly deflected.

Continue Figure 1B, width direction groove 117 is located at the outer surface of front body 110.Front body 110 clamps multiple connectors 102, which is inclusive in flange 103, which is configured to for connector 102 being fixed in front body 110.Spring 104 to Preceding promotion connector 102.Spring 104 is comprised at the close end of rear body 105.Notch 105.7 receives push/pull biasing spring 105.2.In the present invention, spring 105.2 is removed as described below.

B referring to Fig.1, crimp rings 106 are covered to form cable/protection shade assembly 108 by protective cover 107.Final assembling Occur from distal portion to close end, in the case where connector is inserted into front body, when rear body latch piece 105.8 is being open When being inserted into front body at 113, rear body restricted spring 104 forward.Protection shade assembly is swirled to the distal portion of rear body On, although other methods are also known in the art.

Fig. 1 C1- Fig. 1 C3 depicts the top surface of the front body at the close end of connector 100A.Fig. 1 C1 is connector The perspective view of 100A, the connector is with the front body 110 at close end and with the distal portion in connector 100A The pulling tongue piece handle 125 at place.The magnification region of Fig. 1 C1 amplifies in Fig. 1 C2 to be shown.Fig. 1 C2 is shown to be cut positioned at rear body Biasing spring 105.2 in mouth 105.7, and the biasing spring is configured to bias push/pull tongue piece 120 forward.Also disclosing will Fixed salient 124a is press-fitted into the corresponding opening in connector body 127.Second fixed salient 124b is press-fitted Into the corresponding opening in ontology 127.These protruding portions 124a, 124b is sliding in the channel being formed in connector body opening Dynamic, which is sized so that push/pull tongue piece 120 can advance to utilize the hook portion being located in socket (not shown) (not shown) carrys out fixed connection device 100A and prevents the connector from discharging.Fig. 1 C3 depicts the second amplification view of Fig. 1 C1 Figure.The view be show the cross-sectional view of the intrinsic biasing spring 105.2 of tongue piece positioned at push/pull formula connector, and The spring pushes forward push/pull tongue piece 120 as known in the art.Fig. 1 D depicts the substitution assembled completely Convention connectors 100D.Push/pull tongue piece 120 is biased spring (not shown) bias forward, minimum such as push/pull ramp 123 Shown in point, which is aligned with width direction groove 117 substantially.

Fig. 1 E depicts the connector 100D of decomposition, and it illustrates main components.B referring to Fig.1, identical component have phase Same element number, such as biasing spring 105.2 are shown inserted into the notch of the rear body 105 in Fig. 1 E.Fig. 1 E also shows The biasing spring 105.2 before being inserted into spring retainer 105.1 along the direction of arrow " A " is gone out.Compare Figure 1B and Fig. 1 E to show Various forms of push/pull formula connectors of tongue piece 120 are gone out to push forward using biasing spring 105.2.

Fig. 2A depicts the hook portion 200 being inserted into socket, adapter jack or opening (not shown), is used for connector (100A, 100D) is fixed therein.Hook portion 200 has arc sections 252, which allows arm (254,256) as described herein As be bent.When power is applied to intermediate arm 256, external arm 254a, 254b is bent upwards or is lifted.When from intermediate arm 256 When removal force " F ", external arm (254a, 254b) is under the spring-force driven dual being primarily retained in arc sections 252 back to just Beginning position.With reference to Fig. 2 B, surface 250 is configured to engage with structure in corresponding socket so that hook portion is fixed on the socket In interior structure.Leg 259 bears against the close end of hook portion 200a on corresponding adapter jack structure (not shown), and And arm is maintained at predetermined altitude by the leg when the outer surface of engagement front body 100, as described herein.This is prevented Arm is dragged on the outer surface of connector top surface and resists the movement of the push/pull tongue piece that user makes.

Fig. 3 A depicts the push/pull formula connector 300 of the invention of no biasing spring 105.2.Ramp surface 123 or The arm of push/pull tongue piece 120 has multiple inclined surfaces.These surface structures lift external arm at engaged hook portions intermediate arm. When being fully inserted into connector 300, by promoting the connector in remote end part, connector 300 is fixed on hook portion 200 It is interior.According to the present invention, rake 123b is configured to provide opposite power against the intermediate arm 256 of hook portion 200 to ensure push/pull Tongue piece 120 is pushed forward, so that external arm 254a, 254b be allowed to fall into width direction groove 117 and via hook portion 200 It secures the connectors in adapter jack.

Fig. 3 B is the exploded view of Fig. 3 A, and it illustrates traditional components.A pair of of biasing spring 105.2 in the connector to Preceding promotion push/pull tongue piece 120.The constituent element of Fig. 3 B is similar with those counter elements shown in Figure 1B and Fig. 1 E and such as this Described in text like that.Fig. 4 depicts the push/pull formula connector without biasing spring 105.2 of embodiment according to the present invention 400.Rear body 105 has a pair of of protruding portion 105.3, and the pair of protruding portion extends through the corresponding opening of push/pull tongue piece 120 128, as shown in Fig. 5 A in more detail.Tongue piece 120 is locked to connector body by a pair of of the protruding portion 105.3 of opening 128/, together When opening 128 be again formed as allowing the channel that slides back and forth of tongue piece 120.

Fig. 5 A depicts the close end of connector 400.When hook portion is fixed in socket, width direction groove receives hook portion External arm so that connector and the adapter jack are fixed.The section view cross section of Fig. 5 B is shown in fitting flange with after Between portion's body, forward push connector 103 connector biasing spring position.Push/pull tongue piece arm 129 is comprising multiple rakes or tiltedly Slope portion.In the present invention, ramp 123b is cut or about 10 degree to 35 degree of chamfering, and exactly this angle provide it is opposite Surface force is so that when user inserts the connector into, to the adapter jack comprising hook portion, (hook portion is fixed on the socket In) when push up the intermediate arm 256 of hook portion 200 or hook portion 400 (Figure 11 A).Rear body protruding portion with groove 105.3a 105.3 are latched in convex surfaces 126 so that push/pull tongue piece 120 is fixed to rear body 105.Surface 126 is longitudinal to extend one section Distance, described a distance be wherein with hook portion socket in discharge or fixed connection device necessary to.

Fig. 6 A, which is depicted, is attached to connector body along the direction of arrow " A " for push/pull tongue piece 120.Rear body protruding portion 105.3 are attached to surface 126 and abutment face 126.2 is shelved.Fixed salient 124b is received connector body groove In 111.1.Fig. 6 B shows the protruding portion 124b being inserted into connector body opening.Fig. 6 C is shown when along arrow " A " Direction pull push/pull tongue piece 120 when, protruding portion 124b advances along channel, until the protruding portion quilt cover 110.2 stop.When When tongue piece 120 is pushed forward, protruding portion 124b is configured to stop in connector case body, to ensure ramp region 123 minimum point is aligned with width direction groove 117 substantially.Fig. 6 C shows the push/pull tongue piece being pulled along the direction " A ", with And move back up to the protruding portion 124b stopped at surface 110.2.The travel distance of protruding portion 124b is enough to lift centre End 254a, 254b of external hook portion are lifted in the end of the end of hook portion, the intermediate hook portion, to allow from adapter jack Interior removal connector 400.

Fig. 7 A- Fig. 7 G is depicted when connector 400 is fixed on adapter jack (not shown) wherein with hook portion 200 The operation of the connector 400 without biasing spring 105.2 when middle.Fig. 7 A is depicted when the intermediate arm 256 of hook portion 200 and surface The intermediate arm being lifted up when 121 engagement.The intermediate arm being lifted up has lifted external arm 254a, 254b again.It is external Arm 254a, 254b are spaced apart to not interfere push/pull tongue piece arm 129.As shown, when intermediate arm is astern towards connector 400 Distal portion push push/pull tongue piece arm 129 when, rake 123b is blocking groove 117.Fig. 7 B depicts connected device arm The intermediate hook portion 256 that 129 surface 121 is lifted, and when intermediate hook portion 256 is advanced along surface 122, the end of outer hook portion End 254a, 254b are lifted enough distances and draw to avoid in case surface.

Fig. 7 C depicts connector and continues into the socket (not shown) for being wherein fixed with hook portion.The circle of hook portion 200 Arc portion 252 contacts the surface in ramp region 123, this then pushes connector arm 129 backward.When intermediate arm 256 is lifted, power It is stored in arc sections 252, the power as described herein pushes out external arm into groove 117.As described above, protruding portion 124b (Fig. 6 C) meets with face 110.2, and this prevent push/pull tongue pieces further to advance to distal end.At the insertion point, for hook The design in portion 200, intermediate arm 256 are maximally lifted, and external arm 254a, 254b (not shown) start discharge tension and It falls into groove 117, so that connector is fixed in socket.As seen in figure 7 c, the proximal end face of external arm is now with its storage The spring force deposited and be pressed on connector body 110 via groove surface 117a.This is that connector 400 is fixed on by hook portion 200 Beginning in socket.Fig. 7 D depicts the viewgraph of cross-section of Fig. 7 C, it illustrates when intermediate arm 256 loosens along chamfering 123a, Intermediate arm 256 pushes forward push/pull formula connector arm 129.As described above, it is preferred to chamfering move forward arm 129 smoothly Without biasing spring 105.2.

Fig. 7 E shows the intermediate arm 256 moved along flap-type face or chamfering 123b, and be stored when intermediate arm When spring force is pressed downward, this moves forward connector arm 129 (push/pull tongue piece 120).When push/pull tongue piece 120 moves forward When, external arm 254a, 2454b is shelved in groove 117b, so that connector is fixed in socket.Fig. 7 F is depicted when connection When device is fully inserted into socket, external arm 254a presses upward against groove surface 117a.Fig. 7 G depicts slotting when completing connector insertion When in seat, intermediate arm 256 reaches the minimum point in ramp type face 123.At this point, external arm 254a has further extended into groove In 117 and groove surface 117a is continued to push against, this facilitates fixed connection device, and the case where not using biasing spring 105 Under facilitate intermediate arm 256 and push push/pull tongue piece arm 129 forward.When intermediate arm 256 is fixed by connector 400 via hook portion 200 When into adapter jack, external arm has arrived at latched position.Any user attempts without using push/pull tongue piece 120 In the case of remove connector when, external arm 254a, 254b of hook portion is put up a resistance due to being stopped by groove surface 117a (referring to figure 7F)。

Fig. 8 depicts the push/pull formula connector 800 of substitution, the connector can be removed via opening 104.5 push away/ Pull tab piece 120.Fig. 9 depicts the exploded view of connector 800.Identical element is similar to the element in Figure 1B.Show push/pull Tongue piece 120, rear body 105 and front body 110.Figure 10 is the enlarged view of the close end of connector 800.When push/pull tongue piece 120 When by bias forward, register of the minimum point 123c in ramp region 123 substantially with groove 117.Convex surfaces 122 are upward It is bent intermediate arm 256, to be lifted external arm 254a, 254b.External arm is avoided substantially by intermediate arm lifting and surface 122a contact, so that connector 800 be allowed to be inserted into socket without being stuck.

Figure 11 A depicts the hook portion 400 of substitution.Similar with hook portion 200, external arm 254a, 254b of hook portion 400 is raised Surface 121 moves up.Surface 122 is received in the 254c of channel.As in hook portion 200, it is inserted into connector slotting 259 contact surface 122a, 122b of leg when in seat.Figure 11 B shows contact surface 126, which is inserted using adapter Counter structure in seat fixes hook portion 400.

Figure 12 A, which is depicted, to be started for connector 800 to be inserted in the socket for being fixed with hook portion 400.When connector 800 is inserted Fashionable, pull tab piece arm 129 is pushed along distal direction as indicated by arrow " A ".Intermediate arm 254c is by shown in Figure 12 B Surface 121 after be lifted, this is lifted external arm 254a again.Hook portion 200 or hook portion 400 are fixed in adapter jack, because , when implementing connector of the invention by its protective cover push-in, connector arm is mobile until protruding portion 124b stops to distal end for this (referring to Fig. 6 C).Figure 12 B depicts the close end of connector surface (121,122) and the cross section of hook portion.Convex surfaces 122 have When referred to as hook portion region, 129 structure of linking arm acted in hook portion in the hook portion region.

Figure 13 A depicts the hook portion 400 for reaching chamfering surface 123b.In this embodiment, external arm 254a (and is not shown 254b) by push/pull tongue piece arm 129 towards connector 800 close end push.Figure 13 B, which is depicted, reaches the one of ramp region The intermediate arm 254c of section, wherein chamfering surface 123b is constructed such that the bias forward of connector arm 129 as rake Without the use of biasing spring 150.2.Figure 14 is depicted when intermediate arm is moved along type face 123a, and intermediate arm 254c discharges forward it Tension bias push/pull tongue piece arm 129.The type face have between 20 to 35 degree between angle or gradient, for utmostly to Proximal end bias push/pull tongue piece arm 129.

Figure 15 A depicts the hook portion 400 and its external arm 254a, 254b being fully inserted into, and the external arm is bonded on recessed It is promoted in slot 117 and on groove surfaces 117a.Connector 800 is fixed in adapter jack by this.Figure 15 B is to reach tiltedly The cross section of the hook portion 400 of the minimum point in the slope face Bu Xing, wherein tongue piece 120 is by bias forward.Intermediate arm 254c is in ramp type It is promoted on the 123b of face, so that connector is fixed in adapter using forward tongue piece.

One of ordinary skill in the art will appreciate that not departing from model of the invention by following the principle of the present invention Enclose with spirit of the invention, be available for the suitable of multi fiber joint connector and the cooperation of another multi fiber joint connector The form of orchestration.While characterized as the embodiment of the present invention be related to multi fiber application, but present invention may apply to lists Fiber optic applications.Detail is omitted, in order to avoid obscure the invention；However, writing the disclosure is to make this field skill Art personnel can practice teaching herein without excessive experiment.

Foregoing description of the invention is provided for the purpose of illustration and description.It is not intended to exhaustion or sends out this It is bright to be limited to disclosed precise forms.Many modification and variation schemes are apparent to those skilled in the art 's.

Selection and description embodiment are in order to best explain the principle of the present invention and its practical application, so that ability Domain others skilled in the art it will be appreciated that various embodiments of the present invention and understand have suitable for imagine special-purpose it is various The present invention of modification.

Claims (4)

1. a kind of optical fiber connector, the optical fiber connector include:

Shell, with close end and distal portion；

The top surface of the close end includes the groove of width direction, and the groove is configured to receive fixed device wherein, institute Fixed device is stated to be placed in adapter jack；

The convex portion of the top surface pushes up the intermediate arm of the fixed device；

When connector is inserted into the adapter jack, the intermediate arm pushes up at least one external arm；

The intermediate arm pushes forward on the chamfering surface of a part for being formed as the groove；With

Wherein when completing insertion, intermediate arm bias push/pull tongue piece forward in the case where not using attached spring.

2. optical fiber connector according to claim 1, wherein the external arm of the fixed device is retained in described recessed In slot, to fix the connector in the adapter jack.

3. optical fiber connector according to claim 1, wherein the push/pull tongue piece is in the proximal end of the connector There is ramp type face at portion.

4. optical fiber connector according to claim 3, wherein the ramp type face is partially chamfered to be from normal forward Deviate 10 to 50 degree.