CN220626715U - Optical fiber connector, optical fiber connection plug and optical fiber connection assembly - Google Patents

Abstract

The utility model discloses an optical fiber connector, an optical fiber connecting plug and an optical fiber connecting assembly, relates to the technical field of optoelectronic devices, and aims to solve the problem that the existing optical fiber connector and an optical fiber are difficult to plug. The optical fiber connecting assembly comprises an optical fiber connector and an optical fiber connecting plug, the optical fiber connecting plug is connected with the optical fiber connector in a matched mode, the optical fiber connector comprises a shell, a coupling part and a buckling part, a through hole is formed in the side wall of the shell, the coupling part is arranged in the through hole, the buckling part is arranged on one side of the shell, the buckling part is arranged on the radial outer side of the through hole, the optical fiber connecting plug comprises a core insert and a shielding piece, the core insert and the through hole are coaxially arranged, and the core insert can extend into the through hole along the direction of guiding the coupling part by the buckling part and be coupled with the coupling part; the shielding piece and the buckling part are matched and clamped, the shielding piece comprises a connecting part and a clamping part, the connecting part is sleeved outside the lock pin, the clamping part is connected to the connecting part, and the clamping part and the buckling part are clamped. The utility model is used for optical fiber coupling.

Description

Optical fiber connector, optical fiber connection plug and optical fiber connection assembly

Technical Field

The present utility model relates to the field of optoelectronic devices, and in particular, to an optical fiber connector, an optical fiber connector plug, and an optical fiber connection assembly.

Background

The optical fiber connector is used for precisely butting two end faces of the optical fibers during the detachable connection between the optical fibers, so that the light energy output by the transmitting optical fiber can be coupled into the receiving optical fiber to the maximum extent, and the influence of the intervening optical link on a system is reduced.

The main types of the existing optical fiber connectors are SC, FC and LC, but when the optical fiber connector is plugged and unplugged with the optical fiber, the buckle on the optical fiber connector needs to be manually pressed, and because the position of the buckle on the optical fiber connector is hidden, the manual pressing is inconvenient, so that the plugging and unplugging of the optical fiber are difficult.

Disclosure of Invention

The utility model provides an optical fiber connector, an optical fiber connecting plug and an optical fiber connecting assembly, which solve the problem that the current optical fiber connector and an optical fiber are difficult to plug and pull.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the optical fiber connector comprises a shell, a coupling part and a buckling part, wherein a through hole is formed in the side wall of the shell, and penetrates through the shell to extend to the other side face of the shell; the coupling part is arranged in the through hole and is used for being coupled with the inserting core of the optical fiber connecting plug, namely the inserting core of the optical fiber connecting plug extends into the through hole and is connected with the coupling part.

The buckle portion sets up in one side of casing to the radial outside of through-hole is located to buckle portion, is used for with fiber connection plug joint, and can be in the radial deformation that produces of through-hole, be provided with the lock pin of optic fibre on the fiber connection plug, the lock pin is after the coupling with coupling portion, and buckle portion can block fiber connection plug, makes fiber connection plug can not pull out at will, guarantees the stability of fiber connection.

Further, a distance between the coupling portion and one end of the through hole is greater than or equal to a first preset distance, and/or a distance between the coupling portion and the other end of the through hole is greater than or equal to a second preset distance.

The coupling part is mainly used for being connected with optical fibers at two ends of the through hole, and when the two ends of the optical fiber connector in the application are required to be spliced with the optical fibers, the coupling part and the two ends of the through hole are required to be kept with preset distances; when the optical fiber connector in this application only has one end to need peg graft with optic fibre, the coupling portion need leave the preset distance with the one end that the through-hole needs peg graft.

The first preset distance and the second preset distance are the minimum distance between the insertion of the insertion core into the through hole and the coupling of the coupling part, and are not 0, and the insertion cores at two ends can extend into the through hole to be connected with the coupling part when the first preset distance and the second preset distance are larger than or equal to the first preset distance or the second preset distance, so that the coupling of the optical fibers in the through hole is finally completed.

Further, the optical fiber connector further comprises a coupling sleeve, the coupling sleeve is arranged in the through hole, the outer side of the coupling sleeve is connected with the inner side of the through hole, the coupling part is arranged in the coupling sleeve, and the coupling part is connected with the coupling sleeve.

The coupling sleeve is arranged in the through hole, the coupling part is arranged in the coupling sleeve, the lock pins at two ends extend into the coupling sleeve to be connected with the coupling part, the coupling sleeve can reduce the light energy loss of the lock pins during coupling, and the transmission efficiency of the lock pins during coupling is ensured.

Further, a plugging groove is formed in the shell, the plugging groove is convenient for plugging the optical fiber connector and the optical fiber equipment, the plugging groove and the buckling part are respectively formed in two side faces of the shell, which are oppositely arranged, namely, the plugging groove and the buckling part are oppositely arranged, and one side, away from the buckling part, of the plugging groove is a notch.

The side wall of the inserting groove is also provided with a positioning groove, the positioning groove penetrates through the side wall of the inserting groove, and the positioning groove is communicated with the notch of the inserting groove. The setting of constant head tank can ensure the grafting direction of grafting groove, ensures the grafting accuracy of grafting groove, avoids appearing the wrong condition emergence of grafting direction.

Further, the buckling part comprises a plurality of connecting rods and a plurality of buckles, the connecting rods are distributed in the circumferential direction of the through holes, and the connecting rods prolong the distance of the buckling part, so that an operator can conveniently operate the buckling part; the buckles and the connecting rods are in one-to-one correspondence, one buckle is arranged on one side, away from the shell, of one connecting rod, and the buckle is used for being connected with the buckle part.

The distance between the buckle and the axis of the through hole is gradually reduced along the direction close to the shell, namely, the buckle is obliquely arranged, one end of the buckle, which is adjacent to the shell, protrudes out of the connecting rod along the direction pointing to the axis of the through hole, namely, the connecting position of the buckle and the connecting rod forms a step to serve as a clamping position.

Further, the application also discloses an optical fiber connecting plug, which comprises a core insert and a shielding piece, wherein the core insert is used for being coupled with the coupling part of the optical fiber connector, and the core insert is an internal cable used for being coupled inside the optical fiber.

The shielding piece comprises a connecting part and a clamping part, wherein the connecting part is sleeved on the outer side of the ferrule, the clamping part is connected with the connecting part, the clamping part is positioned on one side of the connecting part, which is away from the central axis of the ferrule, and the clamping part is used for clamping the clamping part of the optical fiber connector.

The optical fiber connecting plug is provided with the lock pin and the shielding piece, after the coupling part of the lock pin and the optical fiber connector is coupled, the clamping part and the buckling part are clamped, the lock pin is prevented from being pulled out, the coupling state of the lock pin is maintained, and the clamping part and the buckling part can be clamped only through the insertion of the lock pin, so that the clamping is convenient.

Further, the optical fiber connection plug comprises two shutters and at least one first elastic member, wherein at least one of the two shutters is slidable along the axial direction of the ferrule between an initial position and a limit position, i.e. at least one of the two shutters is slidable relative to the ferrule, and the sliding of the shutters has a limit position.

At least one of the two shielding pieces is connected with at least one first elastic piece in a one-to-one correspondence manner, namely, the shielding pieces slide by means of the connection of the first elastic pieces when sliding, one shielding piece is connected with one first elastic piece when sliding, the two shielding pieces slide with the two first elastic pieces when sliding, and the first elastic pieces can deform in the process that the shielding pieces slide from the initial position to the limit position, so that the shielding pieces are restored to the initial position from the limit position.

Wherein, shielding piece and buckle portion joint's condition, shielding piece and lock pin fixed connection, or, shielding piece are located extreme position and buckle portion joint, also can fix the lock pin this moment.

Through setting up two blinders, dual joint promotes the stability after the lock pin grafting. Meanwhile, when the external force drives the plug core to be pulled out, after one shielding piece is separated from the buckling part, the other shielding piece can be clamped with the buckling part, so that the plug core is prevented from being pulled out, and the connection stability of the plug core is improved.

Further, the optical fiber connection plug further comprises a second elastic member, and the second elastic member is connected between the two shielding members.

The two shielding pieces are connected through the second elastic piece, so that the two shielding pieces can move in linkage, double clamping is achieved, when the two shielding pieces are affected by external force, the two shielding pieces cannot be pulled out easily, and the inserting stability of the inserting core is improved.

Further, the engaging portion of one of the two shutters is disposed on a side adjacent to the other of the two shutters, and the engaging portion of the other of the two shutters is disposed on a side adjacent to the one of the two shutters, that is, the engaging portions of the two shutters are disposed opposite to each other and are disposed adjacent to each other.

The two clamping parts are arranged adjacent to each other, so that the distance between the two clamping parts is shortened, the problem that the distance between the two clamping parts is large in difference and the purpose of double clamping cannot be achieved is avoided; meanwhile, the distance between the two clamping parts is shortened, the two clamping parts are separated from the clamping part at the same time, and the plug core is convenient to pull out.

The application also discloses an optical fiber connection assembly, which comprises the optical fiber connector and the optical fiber connection plug.

The optical fiber connecting assembly is characterized in that the optical fiber connector is provided with the buckling part, the optical fiber connecting plug is provided with the shielding piece, the shielding piece is connected with the buckling part, and the shielding piece is automatically clamped with the buckling part along with the insertion of the inserting core in the inserting process of the inserting core;

when the plug core is pulled out, because the buckle portion is arranged on the side surface of the shell, an operator can conveniently contact the buckle portion to operate, and the operator can deform the buckle portion in the direction away from the axis of the through hole by adjusting the buckle portion, so that the buckle portion is separated from the shielding piece, and the plug core is pulled out, so that the plug of the optical fiber connector and the optical fiber connecting plug is convenient, and after the plug core is pulled out, the buckle portion can be restored to the original state.

Drawings

FIG. 1 is a schematic view of an optical fiber connection assembly according to the present application;

FIG. 2 is a schematic view of an internal structure of an optical fiber connector housing according to the present disclosure;

FIG. 3 is a schematic structural view of an optical fiber connector housing according to the present disclosure;

FIG. 4 is a schematic view of another angle of a fiber optic connector housing according to the present disclosure;

fig. 5 is a schematic structural diagram of a clamping device provided in the present application;

fig. 6 is a schematic side view of a clamping device provided in the present application;

FIG. 7 is an enlarged schematic view of the structure of FIG. 6A;

FIG. 8 is a schematic view of the structure of the optical fiber connector housing and the clamping device when not plugged;

FIG. 9 is a schematic view of the optical fiber connector housing and the clamping device when aligned and coupled;

FIG. 10 is a second schematic view of the optical fiber connector housing and the clamping device when aligned and coupled;

fig. 11 is a schematic structural view of the optical fiber connector housing and the clamping device when the optical fiber connector housing and the clamping device are ready to be pulled out.

Reference numerals: 100-optical fiber connectors; 200-an optical fiber connection plug;

110-a housing; 120-a snap; 130-a plug-in slot; 140-positioning grooves; 150-mounting blocks; 160-coupling part;

101-a coupling sleeve; 102-a through hole;

121-connecting rods; 122-snap;

210-a ferrule; 220-blinders; 230-a fixing piece; 240-metal tail shank; 250-a second elastic member; 260-a first elastic member;

201-a connection; 202-a clamping part;

221-a first shutter; 222-a second shutter;

2210—a first clip; 2211—a first connection;

2220—second clip; 2221-second connector.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

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 or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The optical fiber connector, also called optical fiber connector, is a device for realizing detachable (movable) connection between optical fibers, and precisely connects two end surfaces of the optical fibers, so that the light energy output by the transmitting optical fiber can be coupled into the receiving optical fiber to the maximum extent, and the influence on a system caused by the intervention of the light energy into an optical link is minimized, which is a basic requirement of the optical fiber connector.

The optical fiber connector is mainly used for realizing the non-permanent fixed connection among equipment, equipment and instruments, equipment and optical fibers and between the optical fibers in the system, and is an indispensable passive device in an optical fiber communication system. To some extent, the fiber optic connectors affect the reliability and various properties of the optical transmission system.

The current optical fiber connector is mainly provided with SC, FC, LC and the like. The FC type fiber connector adopts a metal nut, the fastening mode is a turnbuckle, and the FC type fiber connector has a simple structure, and the nut is manually screwed to realize the butt joint and the disassembly, so that the FC type fiber connector is not beneficial to the operation in a narrow space.

The SC type optical fiber connector is a clamping standard square connector, the fastening mode is a plug pin latch type connector, and rotation is not needed, but the fastening mode still needs to manually control a shell of the connector to realize plug.

The shell of the ST-type optical fiber connector is circular, an annular plastic or metal shell with the thickness of 2.5mm is adopted, the fastening mode is a turnbuckle, the fastening mode is similar to the fastening mode of an FC-type nut, and the connector part still needs to be manually controlled to realize the plugging operation.

In summary, the plugging of all the fiber connectors commonly used at present requires manual operation of the housing component of the connector, and the overall volume is large, the length is long, the installation in a narrow space is not facilitated, and meanwhile, the fastening position on the fiber connector is hidden, the manual pressing is inconvenient, and the plugging of the fiber is difficult.

In order to solve the above-mentioned purpose, this application provides an optical fiber coupling assembling, optical fiber connector and optical fiber connecting plug, can realize the plug of optical fiber connector under numerous special scenes, reduces manual operation, rotates operation such as connector casing, simultaneously, also can adapt to the butt joint or the dismantlement of optical fiber connector in the narrow and small space. The following describes the technical scheme of the present application in detail with reference to the accompanying drawings.

The application discloses optical fiber connection assembly, as shown in fig. 1, including optical fiber connector 100 and optical fiber connection plug 200, optical fiber connection plug 200 carries optic fibre and optical fiber connector 100 grafting, realizes the coupling between optic fibre and the optic fibre.

As shown in fig. 2, the optical fiber connector 100 in the present application includes a housing 110, a coupling portion 160 and a fastening portion 120, a through hole 102 is provided on a side wall of the housing 110, the coupling portion 160 is disposed in the through hole 102, and an optical fiber enters the through hole 102 to be coupled with the coupling portion 160.

The fastening portion 120 is disposed on one side of the housing 110, and the fastening portion 120 is disposed on the radial outer side of the through hole 102, where the fastening portion 120 can deform in the radial direction of the through hole 102, and the fastening portion 120 can enable the optical fiber to be stably inserted into the through hole 102 and not be pulled out at will.

On the basis of the above, the coupling portion 160 is disposed in the through hole 102, and the distance between the coupling portion 160 and one end of the through hole 102 is greater than or equal to a first preset distance, and/or the distance between the coupling portion 160 and the other end of the through hole 102 is greater than or equal to a second preset distance.

The coupling of the optical fiber and the optical fiber is actually optical energy transfer between the ferrule and the ferrule, so that the coupling portion 160 and two ends of the through hole 102 are kept with a first preset distance and a second preset distance, the optical fiber is conveniently coupled with the coupling portion 160 in the through hole 102, and the loss of optical energy is reduced. The first preset distance and the second preset distance are the minimum distance between the optical fiber inserted into the through hole 102 and coupled with the coupling part 160, and the optical fibers at two ends can extend into the through hole 102 to be connected with the coupling part 160 when the first preset distance and the second preset distance are greater than or equal to the first preset distance, so that the optical fibers are finally coupled in the through hole 102.

The coupling part 160 is disposed in the through hole 102 and is located at a middle position of the through hole 102, and two ends of the through hole 102 are mainly used for optical fiber to be inserted, and after the optical fibers at two ends are coupled with the coupling part 160 after being inserted, optical fiber connection at two ends is realized.

It should be noted that, neither the first preset distance nor the second preset distance is 0, i.e. the optical fiber must enter the through hole 102 to be coupled with the coupling portion 160.

It should be noted that, the optical fiber connector 100 in the present application is generally used as an intermediate device for connecting optical fiber equipment with an optical fiber, and the optical fiber needs to be connected with the optical fiber equipment through the optical fiber connector, so that the optical fiber equipment and the optical fiber perform signal transmission, and the purpose of networking the optical fiber equipment is achieved.

The optical fiber device in the embodiment of the application comprises: optical passive devices such as optical splitters, optical fiber wavelength division multiplexers, optical attenuators, and the like.

In some embodiments of the present application, one side of the housing 110 is fixedly connected to the interface of the optical fiber device, and no plugging operation is required, that is, the housing 110 and the optical fiber device are integrated, and as a part of the optical fiber device, the optical fiber at the interface of the optical fiber device is always located in the through hole 102 and coupled to the coupling portion 160, and the other side of the through hole 102 needs to be inserted into the through hole 102 to be coupled to the coupling portion 160. The other side of the housing 110 is provided with a catching part 120.

On the basis of the above, the distance between the coupling portion 160 and the end of the through hole 102 adjacent to the optical fiber device is not required, because the housing 110 is directly and fixedly connected with the interface of the optical fiber device, and no detachment condition exists, when the housing 110 is fixedly connected with the interface of the optical fiber device, the optical fiber at the interface of the optical fiber device is still coupled with the coupling portion 160 in the through hole 102 because the coupling portion 160 is arranged in the through hole 102.

The coupling portion 160 and the other side of the through hole 102 need to be coupled by plugging operation, so the distance between the coupling portion 160 and the other side of the through hole 102 needs to be greater than or equal to a preset distance, and the preset distance is the minimum distance between the optical fiber inserted into the through hole 102 and the coupling portion 160, so that the optical fiber is connected with the coupling portion in the through hole. In other embodiments of the present application, the optical fiber connector 100 is an independent connector, that is, one side of the housing 110 needs to be plugged with an interface of an optical fiber device, the other side of the housing 110 also needs to be plugged with an optical fiber, the fastening portion 120 is disposed on one side of the housing that is plugged with the optical fiber, the coupling portion 160 is disposed in the through hole 102, and two sides of the through hole 102 need to be coupled with the coupling portion 160 by extending the optical fiber into the through hole 102.

Therefore, the distance between the coupling portion 160 and one end of the through hole 102 is greater than or equal to a first preset distance, and the distance between the coupling portion 160 and the other end of the through hole 102 is greater than or equal to a second preset distance, where the first preset distance and the second preset distance are the minimum distance between the optical fiber inserted into the through hole 102 and the coupling portion 160, and when the distance between the coupling portion 160 and two ends of the through hole 102 is greater than or equal to the first preset distance and the second preset distance, the optical fiber can be coupled with the coupling portion 160 in the through hole 102.

Illustratively, the minimum value of the first preset distance and the second preset distance is 5mm, so that the optical fiber can be inserted into the through hole 102 and coupled with the coupling part 160.

Further, as shown in fig. 2, the optical fiber connector 100 in the present application further includes a coupling sleeve 101, the coupling sleeve 101 is disposed in the through hole 102, and the outside of the coupling sleeve 101 is connected to the inside of the through hole 102, and the coupling portion 160 is disposed in the coupling sleeve 101, and the coupling portion 160 is connected to the coupling sleeve 101.

The coupling sleeve 101 is disposed in the through hole 102 and covers the inner side wall of the through hole 102, so that the optical fiber coupling is completed in the coupling sleeve 101, and the coupling between the optical fiber and the optical fiber is actually optical energy transfer between the ferrule and the ferrule, so that the coupling process between the optical fiber and the coupling part 160 occurs in the coupling sleeve 101, and the optical energy loss during the optical fiber coupling is reduced.

To ensure that the optical fiber extends into the coupling sleeve 101 to couple with the coupling portion 160, the coupling portion 160 is spaced from one end of the coupling sleeve 101 by a distance greater than or equal to a first predetermined distance and/or the coupling portion 160 is spaced from the other end of the coupling sleeve by a distance greater than or equal to a second predetermined distance.

Similarly, the first preset distance and the second preset distance are the minimum distance between the optical fiber inserted into the coupling sleeve 101 and coupled to the coupling portion 160, and the optical fiber with the two ends extending into the coupling sleeve 101 and connected to the coupling portion 160 can be finally coupled in the coupling sleeve 101 when the first preset distance and the second preset distance are greater than or equal to each other.

Illustratively, the material of the coupling sleeve 101 may be ceramic, so as to reduce the optical energy loss during the coupling of the optical fibers.

Further, as shown in fig. 2, two ends of the coupling sleeve 101 extend to the outer sides of the through holes 102 respectively, that is, two ends of the coupling sleeve 101 extend beyond two ends of the through holes 102 respectively, so that an optical fiber can be contacted with the coupling sleeve 101 in advance and extend into the coupling sleeve 101 in the inserting process, bending of the optical fiber in the inserting process is avoided, the optical fiber cannot directly enter the coupling sleeve 101, splicing is affected, and convenience of optical fiber connection is improved.

Further, as shown in fig. 3, the housing 110 is provided with a plugging slot 130, the plugging slot 130 and the fastening portion 120 are respectively disposed on two opposite sides of the housing 110, that is, the plugging slot 130 is disposed on one side of the housing 110 where the optical fiber device is connected, the fastening portion 120 is disposed on the other side of the housing 110, a slot is disposed on a side of the plugging slot 130 away from the fastening portion 120, and the coupling sleeve 101 extends to the outside and is disposed in the plugging slot 130.

The plugging groove 130 is formed in the shell 110, so that the shell 110 is conveniently connected with an interface of the optical fiber equipment, convenience in connection of the shell 110 and the interface of the optical fiber equipment is improved, and plugging efficiency is improved.

Further, as shown in fig. 3 and fig. 4, in order to ensure that the plugging slot 130 is plugged with the interface of the optical fiber device accurately, no plugging error or reverse plugging occurs, the sidewall of the plugging slot 130 is further provided with a positioning slot 140, the positioning slot 140 penetrates through the sidewall of the plugging slot 130, and the positioning slot 140 is communicated with one side of the plugging slot 130 away from the fastening portion 120, that is, is communicated with the notch of the plugging slot 130.

The positioning groove 140 facilitates accurate plugging of the plugging groove 130, and can avoid error plugging direction of the plugging groove 130, thereby improving the plugging efficiency of the optical fiber connector 100 in the application.

Further, as shown in fig. 4, in order to make the optical fiber connector 100 in the present application convenient for an operator to take for plugging, a mounting block 150 is further provided on the housing 110, and the mounting block 150 is provided on a side wall of the housing 110.

Illustratively, the mounting blocks 150 are provided in two, symmetrically disposed on the housing 110.

As shown in fig. 4, the mounting blocks 150 are disposed on both sides of the housing 110 in the vertical direction, because the interfaces on the fiber optic equipment are generally horizontally disposed, the placement of the mounting blocks 150 on both sides of the housing 110 in the vertical direction does not affect the connection of other interfaces on the fiber optic equipment.

Further, as shown in fig. 2, the catching portion 120 includes a plurality of connecting rods 121 and a plurality of catches 122, and the plurality of connecting rods 121 are arranged in the circumferential direction of the through hole 102, and are also arranged in the circumferential direction of the coupling sleeve 101.

The plurality of buckles 122 are in one-to-one correspondence with the plurality of connecting rods 121, and one buckle 122 is arranged on one side of one connecting rod 121 far away from the shell 110, the distance between the buckle 122 and the axis of the through hole is gradually reduced along the direction close to the shell 110, and one end of the buckle 122 adjacent to the shell 110 protrudes from the connecting rod 121 along the direction pointing to the axis of the through hole.

One side of the buckle 122, which is close to the through hole, is obliquely arranged, so that the bearing capacity of the buckle can be improved, the stress of the buckle is effectively reduced, and the service life of the buckle is prolonged.

The buckle 122 protrudes from the connecting rod 121, and the protruding portion is a clamping position, and the optical fiber connecting plug 200 is clamped by the clamping position.

The structure of connecting rod 121 and buckle 122 is used in buckle portion 120, when needs joint, carries out the joint through the joint position, when needs separation, through adjusting connecting rod 121 to keeping away from the crooked of coupling sleeve 101's direction, makes buckle 122 no longer block to fiber connection plug 200 to realize the optic fibre pull out, connecting rod 121 can resume the original state after the optic fibre pulls out.

In some embodiments of the present application, the connecting rod 121 and the buckle 122 are provided in two, are disposed on two sides of the coupling sleeve 101, and are symmetrically disposed with the axis of the coupling sleeve 101 as a symmetry axis.

In other embodiments of the present application, three connecting rods 121 and buckles 122 are provided, which are arranged in a triangular shape in the circumferential direction of the coupling sleeve 101.

Illustratively, the connecting rod 121 and the buckle 122 may be set to four, five, etc., and the more the connecting rod 121 and the buckle 122 are set, the more stable the fixing clip is after the optical fiber is spliced.

The optical fiber connector 100 in the application is of an asymmetric structure, and unlike the existing symmetric optical fiber connector, one side of the optical fiber connector 100 in the application is a universal connector, and is provided with a plugging groove 130 and a positioning groove 140, so that the optical fiber connector is connected with an interface of optical fiber equipment;

the other side of fiber optic connector 100 in this application sets up buckle portion 120, and buckle portion 120 occupation space is little, can effectively reduce the space that fiber optic connector 100 occupy, makes fiber optic connector 100 in this application can use in narrow and small space.

As shown in fig. 5, the optical fiber connection plug 200 in the present application includes a ferrule 210 and a shielding member 220, where the ferrule 210 is a ferrule 210 inside an optical fiber, and the coupling connection between the optical fibers is mainly the coupling between the ferrules inside the optical fiber, and the ferrule 210 is used for coupling with the coupling portion of the optical fiber connector 100.

The shielding member 220 is disposed outside the ferrule 210, and the shielding member 220 includes a connection portion 201 and a clamping portion 202, where the connection portion 201 is sleeved outside the ferrule 210. The clamping portion 202 is connected with the connecting portion 201, and the clamping portion 202 is located at a side of the connecting portion 201 away from the central axis of the ferrule 210, where the clamping portion 202 is used for clamping with the clamping portion 120 of the optical fiber connector 100.

The connecting portion 201 is sleeved on the outer side of the ferrule 210, and can separate the ferrule 210 from the outside, so that the ferrule 210 is not in direct contact with the outside, the ferrule 210 is prevented from being damaged, and the ferrule 210 is protected.

Meanwhile, the clamping portion 202 is disposed on the connecting portion 201 and is disposed on a side away from the connecting portion 201, and the clamping portion 202 is clamped with the fastening portion 120, so as to limit movement of the connecting portion 201, further limit movement of the ferrule 210, and ensure that the ferrule 210 cannot be pulled out at will after being connected with the optical fiber connector 100.

When the ferrule 210 needs to be pulled out, the buckle portion 120 can be adjusted, specifically, the connecting rod 121 is adjusted to bend in a direction away from the coupling sleeve 101, so that the buckle 122 and the clamping portion 202 are separated, and the ferrule 210 is pulled out, and after the ferrule 210 is pulled out, the connecting rod 121 is restored to the original state.

Further, as shown in fig. 6, the optical fiber connection plug 200 includes two shutters 220 and at least one first elastic member 260 on the basis of the above, and at least one of the two shutters 220 is capable of sliding between an initial position and a limit position in the axial direction of the ferrule 210.

That is, one of the two shutters 220 may slide along the ferrule 210, the other shutter 220 may be fixed to the ferrule 210, or both shutters 220 may slide along the ferrule 210.

The initial position is a position of the shielding element 220 on the ferrule 210 when no force is applied, the limit position is a position of the shielding element 220 under the driving action of the force, the shielding element 220 slides to another position on the ferrule, and when the shielding element 220 is at the limit position, the shielding element can not slide any more, and only the sliding between the limit position and the initial position can be performed.

At least one of the two shutters 220 is correspondingly connected with at least one first elastic member 260, and the first elastic member 260 is capable of elastically deforming during the sliding of the shutters 220 from the initial position to the extreme position, so that the shutters 220 are restored from the extreme position to the initial position.

When the shutter 220 slides over the ferrule 210, the shutter 220 is connected to the ferrule 210 using the first elastic member 260 such that the first elastic member 260 is elastically deformed during the sliding of the shutter 220 to restore the shutter 220 to the original position.

In the case of the blocking member 220 being clamped with the fastening portion 120, the blocking member 220 is fixedly connected to the ferrule 210, or the blocking member 220 is located at a limit position.

Further, as shown in fig. 6, the optical fiber connection plug 200 in the present application further includes a second elastic member 250, and the second elastic member 250 is connected between the two shutters 220.

The second elastic member 250 can be used to link the two shielding members 220, so that the connection of the ferrule 210 is more stable, and the two shielding members 220 are convenient to be clamped with the fastening portion 120 when the ferrule 210 is inserted.

Meanwhile, when the external force drives the ferrule 210 to be pulled out, after one shielding member 220 is separated from the fastening portion 120, the other shielding member 220 is clamped with the fastening portion 120, so as to prevent the ferrule 210 from being pulled out and improve the connection stability of the ferrule 210.

When the insert 210 is pulled out, the two shielding members 220 can be separated from the fastening portion 120 by adjusting the fastening portion 120, so that the insert 210 is pulled out conveniently.

Further, the clip 202 of one of the two shutters 220 is provided adjacent to one side of the other of the two shutters 220, and the clip 202 of the other of the two shutters 220 is provided adjacent to one side of the one of the two shutters 220.

That is, the two clamping portions 202 on the two shielding members 220 are adjacently arranged, the two clamping portions 202 are adjacently arranged, when the ferrule 210 is inserted, the two clamping portions 202 can be quickly inserted, and after one shielding member 220 is separated from the fastening portion 120, the clamping portion 202 on the other shielding member 220 can be quickly clamped with the fastening portion 120, so that the insertion state of the ferrule 210 is maintained.

When the ferrule 210 is pulled out, the two clamping portions 202 are adjacent to each other, and can be quickly separated from the clamping portion 120, so that the ferrule 210 is pulled out conveniently.

For convenience of description, the two shutters 220 are hereinafter described as a first shutter 221 and a second shutter 222, respectively, and the second shutter 222 is disposed on a side of the first shutter 221 away from the mating end of the ferrule 210.

The insertion end of the ferrule 210 is an end that extends into the coupling sleeve 101 to couple with the coupling portion.

The first shielding member 221 is sleeved outside the ferrule 210, the second shielding member 222 is sleeved outside the ferrule 210, and the second shielding member 222 is spaced from the first shielding member 221.

When the first shielding member 221 slides relative to the ferrule 210, the first shielding member 221 is connected to the ferrule 210 by using the first elastic member 260, and when the first shielding member 221 is located at the left limit position, the first shielding member 221 is clamped with the fastening portion 120;

when the second shielding member 222 slides relative to the ferrule 210, the second shielding member 222 is connected to the ferrule 210 by using the first elastic member 260, and when the second shielding member 222 is located at the right limit position, the second shielding member 222 is clamped to the fastening portion 120.

In some embodiments of the present application, the first shield 221 is fixed relative to the ferrule 210 and the second shield 222 is slidable relative to the ferrule 210.

Illustratively, the second shutter 222 may be coupled to the ferrule 210 using a first resilient member 260, i.e., one end of the first resilient member 260 is coupled to the ferrule 210 and the other end is coupled to the second shutter 222, at which time the second shutter 222 may slide relative to the ferrule 210 and may be returned to its original position by the first resilient member 260.

The second shutter 222 may be connected to the first shutter 221 by a second elastic member 250, the second shutter 222 may be moved on the ferrule 210 by the second elastic member 250, and the first shutter 221 may be fixed, and the second shutter 222 may be restored to the original position by the second elastic member 250 after being moved.

In other embodiments of the present application, the first shield 221 may be slidable relative to the ferrule 210 and the second shield 222 fixed relative to the ferrule 210.

Illustratively, the first shutter 221 may be coupled to the ferrule 210 using a first resilient member 260, i.e., one end of the first resilient member 260 is coupled to the ferrule 210 and the other end is coupled to the first shutter 221, at which time the first shutter 221 may slide relative to the ferrule 210 and may be restored to an original position by the first resilient member 260.

The first shutter 221 may be connected to the second shutter 222 by a second elastic member 250, the first shutter 221 may be moved on the ferrule 210 by the second elastic member 250, and the second shutter 222 may be fixed, and the first shutter 221 may be restored to the original position by the second elastic member 250 after being moved.

In other embodiments of the present application, both the first shield 221 and the second shield 222 are slidable relative to the ferrule 210.

Illustratively, both the first shield 221 and the second shield 222 are connected to the ferrule 210 using a first spring 260, i.e., both the first shield 221 and the second shield 222 are connected to the ferrule 210 via the first spring 260, slide over the ferrule 210, and can resume the original position.

Illustratively, at least one of the first shield 221 and the second shield 222 is connected to the ferrule 210 using a first spring 260, and the first shield 221 and the second shield 222 are connected to each other using a second spring 250.

Illustratively, when the first shield 221 is coupled to the ferrule 210 via the first resilient member 260, the second shield 222 may be coupled to the ferrule 210 via the first resilient member 260, may be coupled to the first shield 221 via the second resilient member 250, and may also use the first resilient member 260 and the second resilient member 250. In this way, both the first shutter 221 and the second shutter 222 can be moved and the initial position can be restored.

Illustratively, when the second shield 222 is coupled to the ferrule 210 via the first resilient member 260, the first shield 221 may be coupled to the ferrule 210 via the first resilient member 260, may be coupled to the second shield 222 via the second resilient member 250, and may also use the first resilient member 260 and the second resilient member 250. In this way, both the first shutter 221 and the second shutter 222 can be moved and the initial position can be restored.

Further, as shown in fig. 7, the first shutter 221 includes a first clip 2210 and a first connection 2211.

The distance between the first clamping piece 2210 and the axis of the ferrule 210 is gradually reduced along the direction close to the insertion end of the ferrule 210, that is, the first clamping piece 2210 is of a conical structure, so that the stress born by the clamping position can be effectively reduced, and the service life is prolonged.

The first connection member 2211 is disposed at a side of the first clamping member 2210 near the insertion end of the ferrule 210, and the first connection member 2211 is sleeved outside the ferrule 210. When the first shielding member 221 is connected to the ferrule 210 through the first elastic member 260, the first elastic member 260 is sleeved outside the ferrule 210, and the first connecting member 2211 is sleeved outside the first elastic member 260.

As shown in fig. 7, the second shielding member 222 includes a second clamping member 2220 and a second connecting member 2221, where the distance between the second clamping member 2220 and the axis of the ferrule 210 increases gradually along the direction near the mating end of the ferrule 210, i.e., the second clamping member 2220 has a tapered structure, but is disposed opposite to the first clamping member 2210, i.e., the tapered direction is opposite to the tapered direction.

Preferably, the second clamping member 2220 and the first clamping member 2210 are the same size.

The second connector 2221 is disposed at a side of the second clamping connector 2220 away from the inserting end of the ferrule 210, and the second connector 2221 is sleeved outside the ferrule 210. When the second shielding member 222 is connected to the ferrule 210 through the first elastic member 260, the first elastic member 260 is sleeved on the outer side of the ferrule 210, and the second connecting member 2221 is sleeved on the outer side of the first elastic member 260.

Further, as shown in fig. 6, the optical fiber connection plug 200 further includes a fixing member 230, where the fixing member 230 is sleeved on the ferrule 210 and fixedly connected with the ferrule 210, and is also disposed on the outer peripheral side of the second connection member 2221, and the fixing member 230 can separate the ferrule 210 from the outside, so as to protect the ferrule 210.

Illustratively, the fixing member 230 may be a fixing sleeve disposed at the outer circumferential side of the second connector 2221, and the second connector 2221 is also a sleeve-shaped structure.

As shown in fig. 6, a metal tail handle 240 is further disposed on a side of the ferrule 210 away from the insertion end of the ferrule 210, the metal tail handle 240 is sleeved on the ferrule 210, and the metal tail handle 240 is mounted on the fixing member 230 to wrap the ferrule 210 completely, so that the ferrule 210 is isolated from the outside, and the service life of the ferrule 210 is prolonged.

Because the fiber connector 100 in the present application occupies a small space, when used in a small space, the number of times of bending the metal tail handle 240 can be reduced, and the service life of the ferrule 210 can be prolonged.

The following describes the insertion and extraction process of the optical fiber connector 100 and the optical fiber connector plug 200 in detail with reference to the accompanying drawings.

As shown in fig. 8, the optical fiber connection plug 200 is not aligned.

As shown in fig. 9, the first step of plugging the optical fiber connection plug 200 is this time. The first shielding member 221 is pushed towards the direction approaching to the coupling sleeve 101, so that the ferrule 210 is aligned to the coupling sleeve 101 for insertion, and meanwhile, the first shielding member 221 is clamped with the clamping part 120, so that the first step of insertion is completed.

As shown in fig. 10, the second step of plugging the optical fiber connection plug 200 is performed. The ferrule 210 is already plugged into the coupling sleeve 101 and coupled to the coupling part, but the ferrule 210 has a certain movement stroke, i.e. the ferrule 210 can move a distance in the coupling sleeve 101 without affecting the coupling of the ferrule 210 to the coupling part.

The second shielding member 222 is pushed continuously in a direction approaching to the coupling sleeve 101, so that the second shielding member 222 is clamped with the buckling part 120, the first shielding member 221 is arranged at intervals with the second shielding member 222 under the action of the second elastic member 250, and the second shielding member 222 is clamped with the buckling part 120 to fix the ferrule 210.

At this time, in a state that the insertion of the ferrule 210 is completed, the second shielding member 222 is clamped with the fastening portion 120, so as to fix the ferrule 210, when the second shielding member 222 is separated from the fastening portion 120 due to an external force, the first shielding member 221 is clamped with the fastening portion 120 in the process of being pulled out under the driving of the second elastic member 250, thereby ensuring that the ferrule 210 can be continuously coupled with the coupling portion in the second coupling sleeve 101, and ensuring the connection stability of the ferrule 210.

As shown in fig. 11, the optical fiber connection plug 200 is ready to be pulled out at this time.

The first shielding member 221 is pushed in a direction away from the coupling sleeve 101, so that the second elastic member 250 is compressed, and the first shielding member 221 and the second shielding member 222 are contacted and abutted, and the first shielding member 221 and the second shielding member 222 are correspondingly clamped with the clamping part 120 after being abutted with each other due to the same clamping member size of the first shielding member 221 and the second shielding member 222.

By adjusting the fastening portion 120, specifically by adjusting the connecting rod 121 to bend in a direction away from the coupling sleeve 101, the fastening portion 202 is separated from the fastening portion 122, so that the first shielding member 221 and the second shielding member 222 can be separated from the fastening portion 120 at the same time, and the core insert 210 is pulled out, thereby completing the pulling-out operation.

After the pulling-out operation is completed, the connection rod 121 is restored to the original state and is restored to the original position.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (9)

1. An optical fiber connector, comprising:

the shell is provided with a through hole on the side wall;

the coupling part is arranged in the through hole and is used for coupling with the insert core of the optical fiber connecting plug;

the buckling part is arranged on one side of the shell, is arranged on the radial outer side of the through hole, can deform in the radial direction of the through hole and is used for being clamped with an optical fiber connecting plug;

the buckle portion includes:

the connecting rods are distributed in the circumferential direction of the through holes and can deform in the radial direction of the through holes;

the plurality of buckles, a plurality of buckles with a plurality of connecting rods one-to-one, one the buckle is located one the connecting rod is kept away from one side of casing, the buckle with the distance between the axis of through-hole is followed and is close to the direction of casing reduces gradually, just the buckle is adjacent the one end of casing is followed directional the direction of the axis of through-hole outstanding in the connecting rod.

2. The optical fiber connector according to claim 1, wherein a distance between the coupling portion and one end of the through hole is greater than or equal to a first preset distance, and/or a distance between the coupling portion and the other end of the through hole is greater than or equal to a second preset distance, and both the first preset distance and the second preset distance are different from zero.

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

the coupling sleeve is arranged in the through hole, the outer side of the coupling sleeve is connected with the inner side of the through hole, the coupling part is arranged in the coupling sleeve, and the coupling part is connected with the coupling sleeve.

4. An optical fiber connector according to claim 3, wherein the housing is provided with a plugging slot, the plugging slot and the fastening portion are located on two opposite sides of the housing, and a slot is formed on a side of the plugging slot away from the fastening portion;

the side wall of the inserting groove is also provided with a positioning groove, the positioning groove penetrates through the side wall of the inserting groove, and the positioning groove is communicated with the notch of the inserting groove.

5. An optical fiber connection plug, comprising:

the ferrule is used for being coupled with the coupling part of the optical fiber connector;

a shield, the shield comprising:

the connecting part is sleeved outside the ferrule;

the clamping part is connected with the connecting part, and is positioned at one side of the connecting part, which deviates from the central axis of the ferrule, and is used for being clamped with the clamping part of the optical fiber connector.

6. The fiber optic connection plug according to claim 5, wherein the fiber optic connection plug comprises:

two shutters, at least one of which is slidable along the axial direction of the ferrule between an initial position and a limit position;

at least one first elastic piece, at least one of the two shielding pieces is connected with the at least one first elastic piece in a one-to-one correspondence manner, and the first elastic piece can generate elastic deformation in the process of sliding the shielding piece from the initial position to the limit position so as to enable the shielding piece to recover from the limit position to the initial position;

under the condition that the shielding piece is clamped with the clamping part, the shielding piece is fixedly connected with the inserting core, or the shielding piece is located at the limit position.

7. The fiber optic connection plug according to claim 6, further comprising:

and the second elastic piece is connected between the two shielding pieces.

8. A fiber optic connector plug according to claim 6, wherein the engagement portion of one of the two shutters is provided on a side thereof adjacent to the other of the two shutters, and the engagement portion of the other of the two shutters is provided on a side thereof adjacent to the one of the two shutters.

9. An optical fiber connection assembly comprising the optical fiber connector of any one of claims 1-4 and the optical fiber connection plug of any one of claims 5-8.