CN211426861U

CN211426861U - LC optical fiber connector

Info

Publication number: CN211426861U
Application number: CN202020310497.8U
Authority: CN
Inventors: 韩绍友; 张业
Original assignee: Shenzhen Xiayu Precision Parts Co ltd
Current assignee: Shenzhen Xiayu Precision Parts Co ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-09-04
Anticipated expiration: 2030-03-12

Abstract

The embodiment of the utility model relates to a LC fiber connector, including the connector body, the latch part reaches the operating means who is used for controlling the latch part, the latch part end forms the splenium, the operating means is including forming the guide structure in order to injecing a front and back displacement route in the connector body middle part, accept the control rod in the guide structure with the middle section and form in the connector body middle part outside and correspond the holding cantilever that is arranged in the splenium outside of latch part with the free end, the guide structure is including setting up in the arched girder that leans on the front end, the front end of control rod is passed out from arched girder below and is extended to the outside perk and form the elastic arm, the end of elastic arm is connected with the free end of holding cantilever; the rear end of the operating lever extends towards the tail direction of the connector body by a preset length. The embodiment of the utility model provides a LC fiber connector is when the control rod stimulates backward, and the elastic arm drives to support to press the cantilever to press the splenium realization unblock of latch part under the arched girder extrusion, and the operation is more smooth and easy.

Description

LC optical fiber connector

Technical Field

The embodiment of the utility model provides a relate to fiber connector technical field, especially indicate a LC fiber connector.

Background

With the development of 5G communication, cloud computing and big data, the integration degree of related data centers is higher and higher, and infinite data needs to be accommodated in a limited space, for example, conventional large-space-occupied optical fiber connectors such as FC optical fiber connectors, SC optical fiber connectors and ST optical fiber connectors will gradually quit, and small-size LC optical fiber connectors will be used more and more, so that a high-density LC optical fiber connector panel installation scheme is required.

The existing simple-assembly push-pull type LC optical fiber connector comprises a connector body, wherein the connector body is composed of a front shell, a plug core, a rear shell and a tail sleeve, the top surface of the front shell is provided with a latch component which is tilted backwards and upwards and used for realizing locking joint with an optical fiber adapter, the tail end of the latch component is provided with a hook, the periphery of the rear shell is sleeved with a clip, the top of the clip is provided with a push-pull hole which is communicated forwards and backwards, a push-pull rod is arranged in the push-pull hole, the push-pull rod comprises a control rod which extends backwards and a hanging hole which is tilted forwards and is matched and hooked with the hook at the tail end of the latch component, and when the control rod is pushed forwards or pulled backwards manually, the hook of the latch component can be driven to act, so that the assembly or disassembly.

However, the LC fiber connector is directly hooked by the hook at the end of the latch member through the hanging hole, and when the operating lever moves along the axial direction of the fiber connector, the direction of the force applied by the hanging hole to the hook of the latch member is oblique to the axial direction of the fiber connector, and can be divided into two force components perpendicular to the axial direction and parallel to the axial direction, where the force component perpendicular to the axial direction is an effective force component for separating the latch member from the fiber adapter, and the force component parallel to the axial direction makes corresponding structures on the latch member and the fiber adapter abut against each other in the axial direction, which is not favorable for detachment, and affects the smoothness during detachment.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem who solves provides a LC fiber connector, can smoothly realize remote operation of installing and removing.

In order to solve the technical problem, the embodiment of the utility model provides an adopt following technical scheme: an LC fiber optic connector comprising a connector body, a latch member provided at a front side of the connector body for locking engagement with a fiber optic adapter, and an operating member provided at a rear-middle portion of the connector body for controlling the latch member, the tail end of the latch component is provided with a pressing part, the operating component comprises a guide structure which is formed in the middle of the connector body to limit a front-back displacement path, an operating rod which is accommodated in the guide structure by the middle section, and a pressing cantilever which is formed on the outer side of the middle of the connector body and the front end part of which is correspondingly arranged on the outer side of the pressing part of the latch component, the guide structure comprises an arched beam arranged close to the front end, the front end of the operating rod penetrates out from the lower part of the arched beam and then extends to the outer side in a tilting mode to form an elastic arm, and the tail end of the elastic arm is connected with the free end of the abutting cantilever; the rear end of the operating lever extends towards the tail direction of the connector body for a preset length.

Furthermore, the tail end of the elastic arm is in matched and pivoted connection with the free end of the abutting cantilever through a pivot and a shaft hole or in matched and buckled connection with a hanging hole through a hook.

Furthermore, the elastic arm is arc-surface-shaped.

Furthermore, the connector body comprises a front shell, an insertion core, a rear shell, a clamping shell and a tail sleeve, wherein the front shell is inserted into the rear shell, the insertion core is inserted into the front shell and the rear shell, the front end of the clamping shell clamps the rear end part of the rear shell, and the tail sleeve is connected with the rear end part of the clamping shell.

Furthermore, the clamping shell is formed by buckling and assembling a bottom shell and a cover plate, the guide structure is formed on the cover plate, and the abutting cantilever is integrally formed by extending the cover plate.

Furthermore, the LC optical fiber connector is a dual-core optical fiber connector, the front shell, the rear shell and the insertion core are two, each front shell is provided with a latch component, a pressing cantilever is arranged corresponding to the latch component on each front shell, two optical fiber channels are formed inside the bottom shell, the front end of each optical fiber channel is correspondingly assembled with one rear shell, the bottom shell is provided with an insertion hole between the two optical fiber channels, the middle part of the inner side surface of the cover plate is provided with a plug pin with a barb, and the plug pin is correspondingly inserted into the insertion hole on the bottom shell and is hooked and buckled on the orifice edge of the insertion hole by the barb to be fixed.

Furthermore, the tail ends of the two abutting cantilevers are connected into a whole through the connecting arm.

Furthermore, the pressing cantilever comprises an elastic bending part integrally extending from the rear end edge of the cover plate to form a U shape and a pressing part extending from the tail end of the elastic bending part to the outer side of the pressing part of the latch part in parallel with the cover plate.

The guide structure further comprises a rear end portion formed on the cover plate and limiting blocks for guiding and limiting the operating lever, the limiting blocks are provided with two limiting blocks which are respectively and oppositely arranged on two sides of a stroke path of the operating lever, protruding hooks are respectively formed at the top ends of the two limiting blocks, the middle section of the operating lever correspondingly penetrates through the two limiting blocks, a positioning block is formed at a position, corresponding to the limiting blocks, of the operating lever, the width of the positioning block is matched with the distance between the two limiting blocks, the positioning block is provided with a preset thickness and is abutted against the protruding hooks, and the width of the portion, located at the rear end of the positioning block, of the operating lever is larger than the distance between the two limiting blocks, so that a blocking wall is.

Furthermore, two sides of the stop wall extend parallel to the positioning blocks respectively to form an auxiliary block, a crack is formed between the positioning block and the two auxiliary blocks respectively, the two limiting blocks on the cover plate are correspondingly accommodated in the corresponding cracks respectively, the inner side and the outer side of the top end of each limiting block are provided with a convex hook, the convex hooks formed on the inner sides of the top ends of the limiting blocks are hooked on the positioning blocks, and the convex hooks formed on the outer sides of the top ends of the limiting blocks are hooked on the top surfaces of the auxiliary blocks.

Adopt above-mentioned technical scheme, the embodiment of the utility model provides a following beneficial effect has at least: the embodiment of the utility model provides a press the splenium outside through at the latch part to set up to press the cantilever, and form the elastic arm at the front end of control lever with the free end that presses the cantilever is connected, when the control lever stimulates backward, the elastic arm can drive to press the cantilever to remove towards the latch part direction and press the splenium of pressing the latch part under the effect of encircleing the roof beam, thereby can realize the unblock action, at this in-process, press the axial of splenium's atress perpendicular to connector basically, and can not receive the interference of parallel axial component, whole dismantlement process operation is more smooth and easy. When the locking device needs to be locked, the operating rod is pushed forwards, the elastic arm, the abutting cantilever and the pressing part have elastic potential energy which is restored to the original state, and the elastic arm, the abutting cantilever and the pressing part can return fast to enable the latch part to be fast connected with the optical fiber adapter.

Drawings

Fig. 1 is a schematic perspective view of an LC fiber connector according to an alternative embodiment of the present invention.

Fig. 2 is a schematic perspective view of an LC fiber connector according to an alternative embodiment of the present invention.

Fig. 3 is a schematic perspective view of a cover plate of a shell according to an alternative embodiment of the LC fiber optic connector of the present invention.

Fig. 4 is a schematic top view of a joystick of an alternative embodiment of the LC fiber optic connector of the present invention.

Fig. 5 is a schematic perspective view of an LC fiber connector according to another alternative embodiment of the present invention.

Fig. 6 is a schematic perspective view of an operating rod according to another alternative embodiment of the LC fiber optic connector of the present invention.

Fig. 7 is a schematic cross-sectional view of an alternative embodiment of the LC fiber optic connector of the present invention when assembled in correspondence with a fiber optic adapter.

Fig. 8 is a schematic cross-sectional view of an alternative embodiment of the LC fiber optic connector of the present invention when detached from the fiber optic adapter.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the following illustrative embodiments and description are only intended to illustrate the present invention, and are not intended as a limitation of the present invention, and that features of the embodiments and examples may be combined with each other without conflict.

As shown in fig. 1 to 8, an LC optical fiber connector according to an alternative embodiment of the present invention includes a connector body 1, a latch member 3 disposed at a front side of the connector body 1 for locking engagement with an optical fiber adapter 9, and an operating member 5 disposed at a middle rear portion of the connector body 1 for controlling the latch member 3, wherein a pressing portion 30 is formed at a terminal of the latch member 3, the operating member 5 includes a guiding structure 50 formed at a middle portion of the connector body 1 for defining a front-rear displacement path, an operating lever 52 received in the guiding structure 50 at the middle portion, and a pressing cantilever 54 formed at an outer side of the middle portion of the connector body 1 and disposed at an outer side of the pressing portion 30 of the latch member 3 at a free end, the guiding structure 50 includes an arched beam 500 disposed at a front end, a front end of the operating lever 52 penetrates through a lower portion of the arched beam 500 and extends to tilt to form an elastic arm 520, the end of the elastic arm 520 is further connected to the free end of the pressing cantilever 54; the rear end of the operating lever 52 extends a predetermined length toward the rear of the connector body 1.

The embodiment of the utility model provides a press the portion 30 outside through at latch component 3 and set up and support and press cantilever 54, and form elastic arm 520 at the front end of operating lever 52 with the free end that supports and press cantilever 54 is connected, when operating lever 52 stimulates backward, as shown in figure 8, elastic arm 520 can drive under arched beam 500 the elastic deformation and support and press cantilever 54 and move towards latch component 3 direction and support and press the portion 30 of pressing of latch component 3, thereby can realize the unblock action, at this in-process, press the axial of the basic perpendicular to fiber connector of atress of portion 30, and can not receive the interference of parallel axial component, whole dismantlement process operation is more smooth and easy. When locking is required, the operating lever 52 is pushed forward, the elastic arm 520, the pressing arm 54 and the pressing portion 30 of the latch member 3 have elastic potential energy to return to the original state, so as to quickly return to the original position, so that the latch member 3 is quickly engaged with the optical fiber adapter 9, and the structure is shown in fig. 7.

In an alternative embodiment of the present invention, as shown in fig. 1 to 4, the end of the elastic arm 520 is pivotally connected to the free end of the pressing cantilever 54 through a pivot 521 and a shaft hole 523; in the embodiment shown in fig. 5 and 6, the end of the elastic arm 520 is in snap-fit connection with the free end of the pressing cantilever 54 through the hook 525 and the hanging hole 527. The present embodiment can flexibly select different connection modes by providing different connection modes of the pivot connection or the hook connection between the elastic arm 520 and the pressing cantilever 54, thereby being capable of adapting to different requirements.

In an alternative embodiment of the present invention, the elastic arm 520 has a curved surface shape. In the present embodiment, the elastic arm 520 is designed to be arc-shaped, which has better elastic deformation capability, and the deformation process is more stable, thereby being beneficial to effectively controlling the operation process.

In an optional embodiment of the present invention, as shown in fig. 2, the connector body 1 includes a front shell 10, a ferrule 12, a rear shell 14, a clamping shell 16 and a tail sleeve 18, wherein the front shell 10 is inserted into the rear shell 14, the ferrule 12 is inserted into the front shell 10 and the rear shell 14, the front end of the clamping shell 16 clamps the rear end of the rear shell 14, and the tail sleeve 18 is engaged with the rear end of the clamping shell 16. The present embodiment can facilitate manufacture and assembly by designing the connector body 1 to be a multi-component combination.

In an alternative embodiment of the present invention, the clamping shell 16 is formed by a bottom shell 160 and a cover plate 162, the guiding structure 50 is formed on the cover plate 162, and the pressing cantilever 54 is integrally formed by extending the cover plate 162. In the present embodiment, the guiding structure 50 and the pressing cantilever 54 are both designed to be formed on the cover plate 162 of the clamping shell 16, so that the manufacturing and assembling can be facilitated, and the cost can be reduced.

In another optional embodiment of the present invention, as shown in fig. 1 and fig. 2, the LC optical fiber connector is a dual-core optical fiber connector, the front shell 10, the rear shell 14 and the ferrule 12 are two, each front shell 10 is provided with a latch component 3, a pressing cantilever 54 is provided corresponding to the latch component 3 on each front shell 10, two optical fiber channels 161 are formed inside the bottom shell 160, a rear shell 14 is assembled corresponding to the front end of each optical fiber channel 161, the bottom shell 160 is formed with a jack 163 between two optical fiber channels 111, a pin 165 with a barb 164 is formed in the middle of the inner side of the cover plate 162, and the pin 165 is inserted into the jack 163 on the bottom shell 160 and fixed by hooking the barb 164 in the aperture of the jack 163. The present embodiment expands the applicable range by applying the respective latch member 3 and the operating member 5 to the two-core optical fiber connector.

In yet another alternative embodiment of the present invention, the ends of the two pressing cantilevers 54 are further connected to each other by a connecting arm 540. In the present embodiment, the connecting arm 540 connects the ends of the two pressing cantilevers 54, so that the structural stability of the pressing cantilevers 54 is better, and when the pressing portion 30 of the latch member 3 is pressed correspondingly, the stability is good, and the synchronization of the actions of the two pressing cantilevers 54 is better.

In another alternative embodiment of the present invention, referring to fig. 3, the pressing cantilever 54 includes an elastic bending portion 541 integrally extending from a rear end edge of the cover plate 162 to form a U shape, and a pressing portion 542 extending from an end of the elastic bending portion 541 to an outer side of the pressing portion 30 of the latch component 3 in parallel with the cover plate 162. In the present embodiment, the elastic bending portion 541 is designed to have a U-shape, so that the pressing cantilever 54 has better elastic deformation capability, and can more effectively follow the operation of the operating lever 52 to lock and unlock the latch member 3.

In another optional embodiment of the present invention, the guiding structure 50 further includes a rear end portion formed on the cover plate 162, and a limiting block 502 for guiding and limiting the operating lever 52, the limiting blocks 502 are disposed on two sides of a stroke path of the operating lever 52, respectively, and are relatively disposed on two sides of the stroke path, the top ends of the two limiting blocks 502 are further respectively formed with a protruding hook 504, the middle section of the operating lever correspondingly passes between the two limiting blocks 502, a portion of the operating lever 52 corresponding to the limiting block 502 forms a positioning block 522 having a width adapted to the distance between the two limiting blocks 502 and having a predetermined thickness and abutting against the protruding hook 504, and the width of the portion of the operating lever 52 located at the rear end of the positioning block 522 is greater than the distance between the two limiting blocks 502 and forms a blocking wall 524 facing one end of the positioning block. In the embodiment, the limit block 502 is further arranged on the cover plate 162 to effectively limit the operating lever 52, so that the operating lever can keep linear motion in the front and rear moving processes, and deflection is avoided, so that the assembly and disassembly operations are smoother, and the operating lever 52 is correspondingly provided with the positioning block 522 and the stop wall 524, so that the operating lever 52 can be effectively guided to move linearly by the matching of the positioning block 522 and the limit block 502, and the stop limit is realized when the stop wall 524 touches the limit block 502, so that the damage of the internal structure caused by the excessive forward pushing of the operating lever 52 is avoided; the positioning block 522 is also in contact with the protruding hook 504, so that the operating lever 52 can be effectively prevented from falling off.

In another optional embodiment of the present invention, the two sides of the retaining wall 524 are respectively parallel to the positioning block 522 to extend to form an auxiliary block 526, a gap 528 is formed between the positioning block 522 and the two auxiliary blocks 526, the two limiting blocks 502 on the cover plate 162 are respectively and correspondingly accommodated in the corresponding gap 528, the inner side and the outer side of the top end of the limiting block 502 are respectively formed with a protruding hook 504, the protruding hook 504 formed on the inner side of the top end of the limiting block 502 is hooked on the positioning block 522, and the protruding hook 504 formed on the outer side of the top end of the limiting block 502 is hooked on the top surface of the auxiliary block 526. In the present embodiment, the auxiliary block 526 is further disposed, so that the limiting block 502 is well accommodated in the gap 528 between the positioning block 522 and the auxiliary block 526, thereby further enhancing the guiding function, and the convex hook 504 at the outer side of the top end of the limiting block 502 is hooked on the top surface of the auxiliary block 526, so as to further prevent the operating lever 52 from falling off.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, and these forms are within the scope of the present invention.

Claims

1. An LC optical fiber connector comprises a connector body, a latch component arranged on the front side surface of the connector body and used for realizing locking joint with an optical fiber adapter, and an operating component arranged on the middle rear part of the connector body and used for controlling the latch component, wherein a pressing part is formed at the tail end of the latch component, the operating component comprises a guide structure formed in the middle of the connector body to limit a front-back displacement path, an operating rod accommodated in the guide structure by the middle section, and a pressing cantilever formed on the outer side of the middle of the connector body and correspondingly arranged on the outer side of the pressing part of the latch component by a free end, the guide structure comprises an arched beam arranged close to the front end, the front end of the operating rod penetrates out from the lower part of the arched beam and then extends to the outer side in a tilting mode to form an elastic arm, and the tail end of the elastic arm is connected with the free end of the abutting cantilever; the rear end of the operating lever extends towards the tail direction of the connector body for a preset length.

2. The LC fiber optic connector of claim 1, wherein the end of the elastic arm is pivotally connected to the free end of the pressing cantilever through a pivot and a shaft hole or is hooked and buckled through a hook and a hanging hole.

3. The LC fiber optic connector of claims 1 or 2, wherein the resilient arm is arcuate.

4. The LC fiber optic connector of claims 1 or 2, wherein the connector body comprises a front shell, a ferrule, a rear shell, a jacket shell, and a tail sleeve, wherein the front shell is mated with the rear shell, the ferrule is inserted into the front shell and the rear shell, the front end of the jacket shell clamps the rear end of the rear shell, and the tail sleeve is engaged with the rear end of the jacket shell.

5. The LC fiber optic connector of claim 4, wherein the housing is formed by snap-fit assembly of a bottom shell and a cover plate, the guide structure is formed on the cover plate, and the pressing cantilever is integrally formed with the cover plate.

6. The LC fiber optic connector of claim 5, wherein the LC fiber optic connector is a dual-core fiber optic connector, the front shell, the rear shell and the ferrule are two, each front shell is provided with a latch member, a pressing cantilever is provided corresponding to the latch member on each front shell, two fiber channels are formed inside the bottom shell, a rear shell is correspondingly assembled at the front end of each fiber channel, the bottom shell is provided with a jack between the two fiber channels, and a pin with a barb is formed in the middle of the inner side surface of the cover plate and is correspondingly inserted into the jack on the bottom shell and is fastened to the edge of the jack by the barb.

7. The LC fiber optic connector of claim 6, wherein the ends of the two push-against cantilevers are further integrally connected by a connecting arm.

8. The LC fiber optic connector of claim 5, wherein the pressing cantilever comprises an elastic bending part integrally extending from the rear end edge of the cover plate to form a U shape, and a pressing part extending from the end of the elastic bending part to the outside of the pressing part of the latch part in parallel with the cover plate.

9. The LC fiber connector of claim 5, wherein the guiding structure further comprises a rear end portion formed on the cover plate, and a stopper for guiding and limiting the operating lever, the stopper is provided with two stoppers and respectively disposed at two sides of a stroke path of the operating lever, the top ends of the two stoppers are respectively formed with a protruding hook, the middle section of the operating lever correspondingly passes through the two stoppers, a positioning block having a width matched with a distance between the two stoppers and a predetermined thickness and abutting against the protruding hook is formed at a portion of the operating lever corresponding to the stopper, the width of a portion of the operating lever located at the rear end of the positioning block is greater than the distance between the two stoppers, and a stopper wall is formed at an end facing the positioning block.

10. The LC fiber optic connector of claim 9, wherein two sides of the stop wall further extend parallel to the positioning block to form an auxiliary block, a slit is formed between the positioning block and the two auxiliary blocks, the two limiting blocks on the cover plate are correspondingly received in the corresponding slits, the inner side and the outer side of the top end of the limiting block are formed with hooks, the inner side of the top end of the limiting block is hooked on the positioning block, and the outer side of the top end of the limiting block is hooked on the top surface of the auxiliary block.