CN220085114U - Optical fiber connector - Google Patents

Abstract

The utility model relates to an optical fiber communication physical connection technology, and discloses an optical fiber connector, which comprises a connector head, a connection assembly, a body and a fastener, wherein: the connecting assembly comprises a first lantern ring and a second lantern ring, the outer diameter of the first lantern ring is smaller than that of the second lantern ring, and the first lantern ring and the second lantern ring can move relatively along the axial direction; the outer side of the body is circumferentially provided with a first connecting part, and the second lantern ring is provided with a second connecting part; the body is provided with the window near the one end of connector, and the inside shape of fastener and the shape phase-match of optic fibre cable are provided with the fastening arch on the inside wall of fastener, and the fastener passes through the fastening arch and is connected with optic fibre cable interference. The fixing effect of the optical fibers in the optical fiber connector can be improved, and then the connection stability and the connection precision of the optical fiber connector are improved.

Description

Optical fiber connector

Technical Field

The utility model relates to the technical field of optical fiber communication physical connection, in particular to an optical fiber connector.

Background

When the optical fiber connector is assembled, the optical fiber needs to be penetrated into the optical fiber connector and precisely connected with the ceramic ferrule of the head part of the optical fiber connector. And then the assembled optical fiber connector and the optical fiber adapter are aligned and connected, so that the communication between the optical fibers is realized.

For the optical fiber connector used outdoors, the optical fiber connector is greatly influenced by the environment in the use process, and the optical fiber in the optical fiber connector is likely to be loosened and bent in the optical fiber connector, so that the precision of optical fiber connection and the service life of the optical fiber are greatly influenced. When the existing optical fiber connector is used for fixing the optical fibers, most of the optical fibers are adhered to the inside of the optical fiber connector by means of glue injection, and connection among components in the optical fiber connector is achieved by means of glue injection, however, the connection mode is possibly affected by glue quality, glue injection technology and the like, so that adhesion is unstable, and connection accuracy of the optical fiber connector is affected.

Therefore, how to improve the fixing effect of the optical fiber in the optical fiber connector, and further improve the connection stability and connection accuracy of the optical fiber connector is a technical problem to be solved.

Disclosure of Invention

The utility model provides an optical fiber connector, which is used for improving the fixing effect of optical fibers in the optical fiber connector and further improving the connection stability and connection precision of the optical fiber connector.

In a first aspect, the present utility model provides an optical fiber connector, including a connector, a connecting assembly, a body and a fastener, the connector is connected with the body, a cavity penetrating the body is provided in the body, and an optical fiber cable sequentially penetrates through the fastener and the cavity to be connected with the connector, wherein:

the connecting assembly comprises a first lantern ring and a second lantern ring, the outer diameter of the first lantern ring is smaller than that of the second lantern ring, and the first lantern ring and the second lantern ring can move relatively along the axial direction;

the outer side of the body is circumferentially provided with a first connecting part, and the second lantern ring is provided with a second connecting part; when the first lantern ring is fixedly connected with the body through the first connecting part and the second lantern ring is matched with the third-party optical fiber connecting equipment through the second connecting part, the first lantern ring is in butt fit with the second lantern ring;

one end of the body, which is close to the connector, is provided with a window which is communicated with the cavity;

the inside shape of fastener and the shape phase-match of optic fibre cable are provided with the fastening protruding on the inside wall of fastener, and the fastener passes through fastening protruding and optic fibre cable interference connection.

Optionally, the method further comprises: and the window cover plate is matched with the window.

Optionally, the window covering is at least partially a see-through structure; and/or the window covering is a different color than the body.

Optionally, the fastener and the fastening projection on the inner sidewall of the fastener are an integrally formed structure.

Optionally, the fastener includes an upper pressing piece and a lower pressing piece, and fastening protrusions are disposed on inner side walls of the upper pressing piece and the lower pressing piece.

Optionally, the fastening protrusions on the upper press sheet are staggered with respect to the fastening protrusions on the lower press sheet.

Optionally, the fastening protrusions on the upper press sheet are arranged in parallel with the fastening protrusions on the lower press sheet.

Optionally, the method further comprises: the crimping ring is sleeved at one end of the body far away from the connector, the crimping ring is of a hollow structure, and the hollow part is used for penetrating the optical fiber cable.

Optionally, the method further comprises: the adapter sleeve is provided with a third matching part, and the adapter sleeve is detachably connected with the second lantern ring through the third matching part.

Optionally, the method further comprises: the heat-shrinkable sleeve is sleeved on the crimping ring, and when the heat-shrinkable sleeve is fixedly connected with the body, the heat-shrinkable sleeve covers the crimping ring.

The utility model discloses an optical fiber connector, which comprises a connector head, a connecting assembly, a body and a fastener, wherein: the connecting assembly comprises a first lantern ring and a second lantern ring, the outer diameter of the first lantern ring is smaller than that of the second lantern ring, and the first lantern ring and the second lantern ring can move relatively along the axial direction; the outer side of the body is circumferentially provided with a first connecting part, and the second lantern ring is provided with a second connecting part; the body is provided with the window near the one end of connector, and the inside shape of fastener and the shape phase-match of optic fibre cable are provided with the fastening arch on the inside wall of fastener, and the fastener passes through the fastening arch and is connected with optic fibre cable interference. And set up the window on the body for the user can confirm the state of optic fibre cable through the window, thereby avoid optic fibre cable to take place to buckle at connection in-process, guarantee optic fibre cable's connection accuracy, and realize the interference between fastener and the optic fibre cable through the fastening arch on the fastener and be connected, also can improve optic fibre cable's tensile effect, and when first lantern ring passes through first connecting portion and body fastening connection, and the second lantern ring passes through the second connecting portion and when third party optical fiber connection equipment joins in marriage, utilize the effort that receives when first lantern ring and body fastening connection, and the effort that receives when second lantern ring and third party optical fiber connection equipment fastening connection, make and carry out axial spacing each other based on the effort of two opposite directions between first lantern ring and the second lantern ring, further guaranteed the connection stability and the connection accuracy of fiber connector when using.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an exploded structure of an optical fiber connector according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a connection assembly according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a body in an optical fiber connector according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a fastener in an optical fiber connector according to an embodiment of the present utility model;

fig. 5A is a schematic structural diagram of an adapter sleeve according to an embodiment of the present utility model;

fig. 5B is a schematic structural diagram of another adapter sleeve according to an embodiment of the present utility model.

Detailed Description

The present utility model is described below based on examples, but the present utility model is not limited to only these examples. In the following detailed description of the present utility model, certain specific details are set forth in order to avoid obscuring the present utility model, and in order to avoid obscuring the present utility model, well-known methods, procedures, and components are not presented in detail.

Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

Referring to fig. 1, fig. 1 is an exploded view of an optical fiber connector according to an embodiment of the present utility model. The optical fiber connector comprises a connector head 1, a connecting assembly 2, a body 3 and a fastener 4.

The connector 1 is connected with the body 3, and in the specific implementation process, the connector 1 can be detachably connected with the body 3 so as to facilitate the replacement of different types of connectors 1; the connector 1 can also be fixedly connected with the body 3. In the practical implementation process, different types of connectors can be selected according to different adapted third-party optical fiber connection devices.

The body 3 is provided with a cavity penetrating the body 3, and the optical fiber cable 5 can pass through the cavity. In the specific implementation process, the optical fiber cable 5 penetrates from one end of the body 3 far away from the connector 1, sequentially penetrates through the fastener 4 and the cavity in the body 3 to be connected with the connector 1, and realizes the conduction of optical fiber signals.

Fig. 2 is a schematic structural diagram of a connection assembly in an optical fiber connector according to an embodiment of the present utility model. As shown in fig. 2, the connection assembly 2 includes a first collar 21 and a second collar 22, an outer diameter of the first collar 21 is smaller than an outer diameter of the second collar 22, and the first collar 21 and the second collar 22 are relatively movable in an axial direction.

Fig. 3 is a schematic structural diagram of a body in an optical fiber connector according to an embodiment of the present utility model. The outer side of the body 3 is circumferentially provided with a first connection portion 31, the first collar 21 is provided with a first fitting portion 211 connected with the first connection portion 31, and when the first collar 21 is fastened and connected with the body 3 through the first fitting portion 211, the first collar 21 is at least partially located inside the second collar 22.

In a specific implementation process, the first connecting portion 31 may be an external thread disposed on the outer circumference of the body 3, or may be a fastening structure. When the first connection portion 31 is an external thread, the first fitting portion 211 provided on the first collar 21 is an internal thread, which is adapted to the external thread; when the first connecting portion 31 is in a snap structure, the first engaging portion 211 provided on the first collar 21 is in a snap structure engaged with the snap structure.

When the first collar 21 is fastened to the body 3 based on the fit between the first connection portion 31 and the first fitting portion 211, the first collar 21 is at least partially located inside the second collar 22. In the specific implementation, the size and shape of the second collar 22 may be selected according to the actual situation, and the second collar 22 may cover the first collar 21 completely or may cover a part of the first collar 21 when the first collar 21 is fastened to the body 3.

The second collar 22 is provided with a second connection portion 221 of a preset length, and the second connection portion 221 is matched with a second matching portion on the third-party optical fiber connection device. The third party optical fiber connection device may be an optical fiber adapter, or may be other devices such as a female end, a socket, or an optical fiber junction box that can be connected to an optical fiber connector.

In a specific implementation, the second connecting portion 221 may be an internal thread disposed on an inner sidewall of the second collar 22, or may be other structures, such as a fastening structure. When the second connection portion 221 is an internal thread, the second mating portion on the third party fiber optic connection device is an external thread; when the second connection portion 221 is in a fastening structure, the second matching portion on the third-party optical fiber connection device is in a fastening structure matched with the fastening structure. Of course, it will be appreciated that the specific configuration of the second connection portion 221 may be selected according to the connection configuration of the third party fiber optic connection device that the fiber optic connector is required to be unmated.

In some embodiments, the length of the second connection 221 may be greater than the length of the second mating portion within the third party fiber optic connection device. The length of the second connection part 221 refers to the connection stroke of the second connection part 221, and the length of the second mating part refers to the connection stroke of the second mating part. The setting of second connecting portion 221 and second mating portion length can make when the connection stroke of second mating portion has ended, and the connection stroke of second connecting portion 221 still remains for second lantern ring 22 can fastening connection on third party's fiber optic connection equipment, improves the compactness of connection.

When the first collar 21 is fastened to the body 3 and the second collar 22 is fastened to the third party fiber optic connection device, a portion of the first collar 21 that does not pass through the second collar 22 will be in abutting engagement with the second collar 22 inside the second collar 22, so that axial limitation is performed between the first collar 21 and the second collar 22.

That is, when the first collar 21 is fastened to the body 3 and the second collar 22 is fastened to the third-party optical fiber connection device, the first collar 21 abuts against the second collar 22, and the first collar 21 applies a force to the abutting portion in the direction of the body 3, and at this time, the second collar 22 applies a force to the abutting portion in the direction of the third-party optical fiber connection device, the directions of the two forces are opposite, and based on the forces in opposite directions, the first collar 21 and the second collar 22 perform axial limiting.

In an embodiment, the first collar 21 may be provided with a first abutting portion 212, and the second collar 22 may also be provided with a second abutting portion, where the first abutting portion 212 and the second abutting portion are in abutting engagement, so as to achieve mutual axial limitation between the first collar 21 and the second collar 22.

In a specific implementation process, the first abutting portion 212 may be a protruding ring fixed on the outer side of the first collar 21, the second abutting portion may be a protruding abutting annular platform set in the second collar 22, an annular inner diameter of the abutting annular platform is greater than or equal to an outer diameter of the first collar 21, so that the first collar 21 penetrates into and out of the second collar 22, and the annular inner diameter of the abutting annular platform is smaller than the outer diameter of the protruding ring, so that the protruding ring can abut against the abutting annular platform when the first collar 21 penetrates into and out of the second collar 22, so as to limit the first collar 21.

As shown in fig. 3, a window 32 is provided at one end of the body 3 near the connector 1, the window 32 is provided on the peripheral side of the body 3, and the window 32 is communicated with the cavity in the body 3. The window 32 is used to confirm the status of the optical fiber cable 5 located in the body 3. For example, when the user connects the optical fiber cable 5 to the connector 1, the user can observe the state of the optical fiber cable 5 in the cavity in the body 3 through the window 32 to confirm whether the optical fiber cable 5 is bent, deformed, or the like.

In some embodiments, the fiber optic connector further includes a window cover 6, the window cover 6 being shaped and sized to match the window 32, the window cover 6 being capable of tightly coupling with the window 32 when the window cover 6 is coupled with the window 32 to effect closure of the window 32. In the implementation process, the window cover plate 6 and the window can be clamped, or can be in other modes capable of realizing tight connection.

Wherein the window covering 6 is at least partially of see-through construction and/or the color of the window covering 6 is different from the color of the body 3.

In some embodiments, the window covering 6 is at least partially in a see-through configuration, so that a user can confirm the status of the optical fiber cable 5 connected to the connector 1 through the window covering 6. After the optical fiber cable 5 is connected with the connector 1, a user can observe the state of the optical fiber cable 5 in the cavity of the body 3 through the perspective part of the window cover plate 6 to confirm whether the optical fiber cable 5 is bent, deformed and the like.

In some embodiments, the window covering 6 may be a different color than the body 3, e.g., the body 3 may be black and the window covering 6 may be red. The window cover plate 6 is set to be different from the body 3 in color, so that the connection between the optical fiber connector and the female end can be facilitated, and the identification effect is achieved.

In some embodiments, the window covering 6 may also be a structure having a partially see-through structure and a color different from that of the body 3. It will be appreciated that the see-through portion of the window covering 6 may also have a different color from the color of the body 3, and the see-through portion of the window covering 6 need only have a certain transparency, not only a white transparent structure.

In some embodiments, the body 3 is further provided with a groove, which is provided on the peripheral side of the window 32. In an embodiment, the grooves may be formed on the body 3 on opposite sides of the window 32 in the axial direction. When the optical fiber connector needs to be connected with the optical fiber splitting box, the inside of the optical fiber splitting box can be provided with the protrusions corresponding to the grooves, so that when the optical fiber connector is connected with the optical fiber splitting box, the tight connection between the optical fiber connector and the optical fiber splitting box can be realized through the clamping fit between the protrusions on the optical fiber splitting box and the grooves on the body 3, the fixing effect of the optical fiber connector in the optical fiber splitting box is further enhanced, and the connection precision of the optical fiber connector is improved.

The shape inside the fastener 4 of the optical fiber connector is matched with the shape of the optical fiber cable 5, so that when the optical fiber cable 5 passes through the fastener 4, the optical fiber cable 5 can be tightly connected with the fastener 4, on one hand, the optical fiber cable 5 can be fixed, the shake of the optical fiber cable 5 in the cavity of the body 3 is reduced, and the connection precision is ensured; on the other hand, the sealing state of the optical fiber connector after penetrating the optical fiber cable 5 is guaranteed, dust and the like are reduced from entering the optical fiber connector, and the connection precision is further guaranteed.

As shown in fig. 4, the fastener 4 is provided with a fastening protrusion 41 on the inner side wall thereof, and the fastener 4 is interference-connected with the optical fiber cable 5 by the fastening protrusion 41. When the optical fiber cable 5 passes through the fastener 4, the fastening protrusion 41 on the fastener 4 presses the optical fiber cable 5, so that interference connection between the optical fiber cable 5 and the fastener 4 is realized, and the optical fiber cable is fixed.

In the specific implementation process, the fastener 4 can be an integrally formed structure or a split structure.

When the fastener 4 is of an integrally formed structure, the fastener 4 and the fastening projection 41 provided on the inner side wall of the fastener 4 are together of an integrally formed structure.

When the fastener 4 is of a split structure, the fastener 4 includes an upper press piece 42 and a lower press piece 43, and fastening projections 41 are provided on inner side walls of the upper press piece 42 and the lower press piece 43. The upper pressing piece 42 and the lower pressing piece 43 can be fastened and connected in a clamping manner, and the fastening piece 4 is arranged to be the upper pressing piece and the lower pressing piece, so that when the optical fiber cable 5 passes through the fastening piece 4, the operation is more convenient. It is understood that the fastening protrusion 41 may be integrally formed with the upper pressing piece 42, and the fastening protrusion 41 may be integrally formed with the lower pressing piece 43.

In some embodiments, the fastening protrusions 41 on the upper press sheet 42 and the fastening protrusions 41 on the lower press sheet 43 may also be arranged in parallel. The fastening protrusions 41 on the two pressing sheets are arranged in parallel, so that the extrusion force between the two pressing sheets and the optical fiber cable 5 can be increased, the tensile property of the optical fiber cable 5 in the fastening piece 4 is improved, and the connection precision of the optical fiber connector is further improved.

In some embodiments, the fastening protrusions 41 on the upper press sheet 42 and the fastening protrusions 41 on the lower press sheet 43 may be arranged in a relatively staggered manner. The fastening protrusions 41 on the two pressing sheets are arranged in a staggered mode, and can be in contact with the optical fiber cable 5 more when being connected with the optical fiber cable 5, so that the optical fiber cable 5 can not be damaged when the extrusion force of the fastening piece 4 to the optical fiber cable 5 is increased, the tensile property of the optical fiber cable 5 in the fastening piece 4 is further improved, and the connection precision is improved.

In some embodiments, the optical fiber connector further comprises a crimp ring 7 covering an end of the body 3 remote from the connector head 1, the crimp ring 7 having a hollow structure, and the hollow portion is used for passing through the optical fiber cable 5. When the crimp ring 7 is crimped with the body 3, the crimp ring 7 encapsulates the fastener 4 and crimps the fastener 4 onto the fiber optic cable 5. After the fastener 4 is fastened and connected with the optical fiber cable 5, the crimping ring 7 is sleeved at one end of the body 3, and the crimping ring 7 coats the fastener 4 at the moment, so that crimping between the fastener 4 and the optical fiber cable 5 is tighter, and the fastener 4 and the body 3 can be connected, so that the fastener 4 can be coaxial with the body 3, and the optical fiber cable 5 can pass through a cavity in the body 3 along an axis and be connected with the connector 1. In a specific implementation process, when the crimping ring 7 is crimped with the body 3, an end surface of the fastener 4 may abut against an end surface of the body 3, and an end surface of the fastener 4 may be spaced from an end surface of the body 3 by a predetermined distance.

Since the crimp ring 7 needs to be crimped with the body 3, the material of the crimp ring 7 may be selected from materials with low hardness, such as aluminum. After the optical fiber cable 5 passes through the crimping ring 7, the crimping ring 7 is crimped on the body 3 through crimping, so that the coating and fixing of the optical fiber cable 5 can be further completed by utilizing the crimping ring 7, the tensile strength of the optical fiber cable 5 in the optical fiber connector can be realized, and different fixing modes can be provided for different types of optical fiber cables.

In an embodiment, the optical fiber connector further comprises a metal member 8, wherein the metal member 8 is disposed at an end of the body 3 away from the connector head 1, and the metal member 8 is at least partially exposed outside the body 3. When the crimp ring 7 is crimped with the body 3, the crimp ring 7 is wrapped around the metal piece 8. The metal piece 8 is arranged in one end, far away from the connector 1, of the body 3, so that the body 3 can be supported, and the problem that the body 3 is crushed or has other quality problems when the crimping ring 7 is crimped is avoided, so that the quality of the optical fiber connector is ensured. And the connection strength between the crimping ring 7 and the body 3 is also increased, the connection stability of the optical fiber connector is improved, and the connection precision is ensured.

In some embodiments, the body 3 and the metal piece 8 are integrally formed, the metal piece 37 is partially embedded in the body 3 and at least part of the metal piece 8 is exposed, and the part of the metal piece 8 exposed out of the body 3 is crimped with the crimp ring 7. In a specific implementation process, the metal piece 8 and the body 3 can be directly injection molded together during injection molding, and an integrated design is performed, so that the metal piece 8 is partially embedded into the body 3 and partially exposed out of the body 3.

In one embodiment, the outer side wall of the metal member 8 is provided with a concave-convex structure. Wherein, the concave-convex structure can be various structures such as stripes, knurls, grooves or bulges. The concave-convex structure can increase the friction force between the metal piece 8 and the compression joint ring 5 when the metal piece 8 is in compression joint with the compression joint ring 7, so that the tensile effect between the metal piece 8 and the compression joint ring 7 is improved, the connection strength is increased, and the connection precision is further improved.

In one embodiment, the optical fiber connector further comprises: the adapter sleeve 9 is provided with a third matching part on the adapter sleeve 9, and the adapter sleeve 9 is detachably connected with the second lantern ring 22 through the third matching part to replace the adapter sleeve 9 so as to adapt to other third party optical fiber connecting equipment.

Referring to fig. 5A and 5B, fig. 5A is a schematic structural diagram of an adapter sleeve according to an embodiment of the present utility model; fig. 5B is a schematic structural diagram of another adapter sleeve according to an embodiment of the present utility model. The second collar 22 is matched with the third matching part through the second connecting part 221, so that the second collar 22 is fastened with the matching sleeve 8, and different matching sleeves 9 are replaced, so that the optical fiber connector can be matched with different connecting female ends, the adaptability of the optical fiber connector is improved, and the optical fiber connector is multipurpose.

Likewise, the second connecting portion 221 may be an internal thread disposed on the inner sidewall of the second collar 22, or may be other structures, such as a snap structure. When the second connection part 221 is an internal thread, the third mating part on the adapter sleeve 9 is an external thread; when the second connecting portion 221 is a fastening structure, the third matching portion on the adapter sleeve 9 is a fastening structure that matches with the fastening structure. In the specific implementation process, the adaptive sleeve 9 can be a single component or a double-layer sleeve structure.

In an embodiment, a seal ring groove 33 is further disposed on the body 3 along the circumferential direction, the seal ring groove 33 is located between the window 32 and the first connecting portion 31, and the seal ring groove 33 is spaced from the window 32 and the first connecting portion 31 by a predetermined distance.

The sealing ring groove 33 is further formed in the body 3 along the circumferential direction, a sealing ring can be placed in the sealing ring groove 33, and after the sealing ring is placed in the sealing ring groove 33, the connecting part can be sealed when the optical fiber connector is connected with third-party optical fiber connecting equipment, so that external dust, water trace and the like are placed into the optical fiber connector, and the connection precision between the optical fiber connector and the third-party optical fiber connecting equipment is guaranteed.

In a specific implementation process, the sealing ring groove 33 is located between the window 32 and the first connecting portion 31, and a first preset distance may be provided between the sealing ring groove 33 and the first connecting portion 31, and a second preset distance may be provided between the sealing ring groove 36 and the window 32. The values of the first preset distance and the second preset distance may be different or the same, and the specific position of the seal ring groove 33 and the determination of the width of the seal ring groove 33 may be selected according to actual situations.

In one embodiment, the optical fiber connector further comprises: the heat-shrinkable sleeve 10 is sleeved on the crimping ring 7, and when the heat-shrinkable sleeve 10 is fixedly connected with the body 5, the heat-shrinkable sleeve 10 covers the crimping ring 7.

When the crimping ring 7 completes crimping, the heat shrinkage bush 10 is sheathed on the body 3 from one end of the body 3 far away from the connector 1, and is subjected to heat shrinkage after the sheath is completed so as to be fixedly connected with the body 3. When the heat shrinkage bush 10 is fixedly connected with the body 3, the heat shrinkage bush 10 covers the crimp ring 7, so that the crimp strength of the crimp ring 7 can be further increased, the tensile effect of the optical fiber cable 5 fixed in the optical fiber connector is improved, and the connection precision is further improved.

The utility model discloses an optical fiber connector, which comprises a connector head, a connecting assembly, a body and a fastener, wherein: the connecting assembly comprises a first lantern ring and a second lantern ring, the outer diameter of the first lantern ring is smaller than that of the second lantern ring, and the first lantern ring and the second lantern ring can move relatively along the axial direction; the outer side of the body is circumferentially provided with a first connecting part, and the second lantern ring is provided with a second connecting part; the body is provided with the window near the one end of connector, and the inside shape of fastener and the shape phase-match of optic fibre cable are provided with the fastening arch on the inside wall of fastener, and the fastener passes through the fastening arch and is connected with optic fibre cable interference. And set up the window on the body for the user can confirm the state of optic fibre cable through the window, thereby avoid optic fibre cable to take place to buckle at connection in-process, guarantee optic fibre cable's connection accuracy, and realize the interference between fastener and the optic fibre cable through the fastening arch on the fastener and be connected, also can improve optic fibre cable's tensile effect, and when first lantern ring passes through first connecting portion and body fastening connection, and the second lantern ring passes through the second connecting portion and when third party optical fiber connection equipment joins in marriage, utilize the effort that receives when first lantern ring and body fastening connection, and the effort that receives when second lantern ring and third party optical fiber connection equipment fastening connection, make and carry out axial spacing each other based on the effort of two opposite directions between first lantern ring and the second lantern ring, further guaranteed the connection stability and the connection accuracy of fiber connector when using.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. The utility model provides an optical fiber connector, its characterized in that, includes connector (1), coupling assembling (2), body (3) and fastener (4), connector (1) with body (3) are connected, be provided with in body (3) and run through cavity of body (3), fiber optic cable (5) pass in proper order fastener (4) with the cavity is in order with connector (1) are connected, wherein:

the connecting assembly (2) comprises a first collar (21) and a second collar (22), wherein the outer diameter of the first collar (21) is smaller than the outer diameter of the second collar (22), and the first collar (21) and the second collar (22) can move relatively along the axial direction;

a first connecting part (31) is circumferentially arranged on the outer side of the body (3), and a second connecting part (221) is arranged on the second lantern ring (22); when the first lantern ring (21) is fixedly connected with the body (3) through the first connecting part (31) and the second lantern ring (22) is matched with third-party optical fiber connecting equipment through the second connecting part (221), the first lantern ring (21) is in abutting fit with the second lantern ring (22);

one end of the body (3) close to the connector (1) is provided with a window (32), and the window (32) is communicated with the cavity;

the shape inside fastener (4) with the shape phase-match of optic fibre cable (5), be provided with fastening protruding (41) on the inside wall of fastener (4), fastener (4) pass through fastening protruding (41) with optic fibre cable (5) interference connection.

2. The fiber optic connector of claim 1, further comprising:

and the window cover plate (6), wherein the window cover plate (6) is matched with the window (32).

3. The optical fiber connector according to claim 2, characterized in that the window cover (6) is at least partially of see-through construction; and/or

The window cover (6) is different in color from the body (3).

4. The fiber optic connector of claim 1, wherein the fastener (4) and the fastening projection (41) on the inner sidewall of the fastener (4) are of unitary construction.

5. The fiber optic connector of claim 1, wherein the fastener (4) comprises an upper press piece (42) and a lower press piece (43), and fastening projections (41) are provided on inner side walls of the upper press piece (42) and the lower press piece (43).

6. The fiber optic connector of claim 5, wherein the fastening projections (41) on the upper press piece (42) are staggered relative to the fastening projections (41) on the lower press piece (43).

7. The fiber optic connector of claim 5, wherein the fastening protrusions (41) on the upper press piece (42) are arranged in parallel with the fastening protrusions (41) on the lower press piece (43).

8. The fiber optic connector of claim 1, further comprising:

the crimping ring (7) is sleeved at one end, far away from the connector (1), of the body (3), the crimping ring (7) is of a hollow structure, and the hollow part is used for penetrating through the optical fiber cable (5).

9. The fiber optic connector of claim 1, further comprising:

the adapter sleeve (9) is provided with a third matching part, and the adapter sleeve (9) is detachably connected with the second lantern ring (22) through the third matching part.

10. The fiber optic connector of claim 1, further comprising:

and the heat-shrinkable sleeve (10) is sleeved on the crimping ring (7), and when the heat-shrinkable sleeve (10) is fixedly connected with the body (3), the heat-shrinkable sleeve (10) coats the crimping ring (7).