CN221650668U - Optical fiber connector and optical fiber connector - Google Patents

Abstract

The embodiment of the application provides an optical fiber connector and an optical fiber connector, which belong to the technical field of optical communication, wherein the optical fiber connector comprises a core inserting assembly, a protective sleeve and a connecting shaft, one end of the core inserting assembly can be spliced with an optical fiber adapter, the other end of the core inserting assembly is connected with the connecting shaft, the protective sleeve is sleeved outside the core inserting assembly, and in the laying of a home-entry optical cable, an optical fiber at one end of the home-entry optical cable can pass through a channel in the connecting shaft to be connected with the core inserting assembly, so that the field end forming of one end of the home-entry optical cable is realized. The optical fiber connectors connected to the two ends of the fiber optic cable of the home section are respectively spliced with the adapter on the side of the fiber box and the adapter on the side of the user terminal box, so that the fiber optic cable of the home section can be connected and laid, fusion equipment is omitted, plug and play is realized, the operation is simple and convenient, the convenience of the fiber optic cable laying of the home section is remarkably improved, and the laying efficiency is improved. And the protective sleeve and the connecting shaft are integrated into a whole, so that the parts of the optical fiber connector can be reduced, the assembly difficulty and the assembly cost of the optical fiber connector are reduced, and the assembly efficiency is improved.

Description

Optical fiber connector and optical fiber connector

Technical Field

The present application relates to the field of optical communications technologies, and in particular, to an optical fiber connector and an optical fiber connector.

Background

With the development of modern society and the explosion growth of information quantity, the demands of people on network throughput are continuously improved, and the optical transmission gradually becomes a mainstream scheme of modern communication by virtue of the unique characteristics of ultra-high bandwidth, low electromagnetic interference and the like. As in the newly-built network at present, the access network represented by the fiber to the home (fiber to the home, abbreviated as FTTH) obtains large-scale application deployment.

In FTTH network construction, from an Optical Line Terminal (OLT) to a fiber termination box (ACCESS TERMINAL box, ATB) of a subscriber, the fiber termination box needs to sequentially pass through a feeder section optical cable, a distribution section optical cable and a service section optical cable. The fiber end of each household is welded with the fiber end of the fiber entering section cable in the fiber dividing box by an optical fiber welding machine, and then the fiber entering section cable is paved to each household, and the other end of the fiber entering section cable is welded on site once so as to be connected with the user terminal box of each household. The special optical fiber welding equipment is needed by the welding technology, the technical requirement on operators is high, the operation process is complicated and inconvenient, and the time consumption of the whole laying process of the fiber cable at the home section is long.

Disclosure of utility model

The embodiment of the application provides an optical fiber connector and an optical fiber connector, which can realize the on-site end formation of an optical cable through the optical fiber connector, and the optical cable can be laid by plugging the optical fiber connector and an optical fiber adapter, so that the operation is simple and convenient, and the laying time is obviously shortened.

A first aspect of the embodiments of the present application provides an optical fiber connector, which includes a ferrule assembly, and a protective sleeve and a connection shaft that are sequentially connected, where one end of the ferrule assembly is used for being in plug-in fit with a jack of an optical fiber adapter.

The other end and the connecting axle of lock pin subassembly are connected, have the first passageway that supplies the optic fibre of optical cable to pass in the connecting axle, the other end of lock pin subassembly is used for being connected with the optic fibre that passes the first passageway of connecting axle, the protective sheath cover is established in the outside of lock pin subassembly, the protective sheath can play the guard action to the lock pin subassembly, the optic fibre of optical cable can be followed the connecting axle and deviate from the one end of lock pin subassembly and pass first passageway and stretch into the one end that the connecting axle is connected with the lock pin subassembly, and then be connected with the lock pin subassembly, through lock pin subassembly and optical fiber adapter cooperation, just can realize the optic fibre of this optical cable and the connection of optical fiber adapter.

In the arrangement of the home section optical cable, one end of the home section optical cable can be fixed with the optical fiber connector, and the optical fiber at the end can penetrate through the first channel of the connecting shaft to be connected with the core inserting assembly, so that the on-site end forming of one end of the home section optical cable is realized. The fiber connectors connected to the two ends of the fiber-in section are respectively spliced with the fiber adapter on the fiber box side and the fiber adapter on the fiber box side, so that the connection arrangement of the fiber-in section can be realized, professional equipment of fiber fusion is omitted, the fiber-in section is plug-and-play, the operation is simple and convenient, the arrangement convenience of the fiber-in section is obviously improved, and the arrangement efficiency is improved.

Wherein, protective sheath and connecting axle formula structure as an organic whole, protective sheath and connecting axle be the integral type structure that forms through integrated into one piece's mode promptly, can reduce fiber connector's spare part, simplify fiber connector's structural design, promote fiber connector's assembly efficiency, reduce fiber connector's the equipment degree of difficulty and equipment cost.

In one possible implementation manner, the optical fiber connector further comprises a locking member, the locking member is sleeved on the outer side of the integral structural member, the locking member is in running fit with the integral structural member, and the first end of the locking member is used for being connected with the optical fiber adapter, so that locking connection between the optical fiber connector and the optical fiber adapter is realized, and the connection fit fastness between the optical fiber connector and the optical fiber adapter is improved. And the locking piece is sleeved outside the integrated structural part and is connected with the optical fiber adapter, and the locking piece can be wrapped outside the connecting position of the optical fiber connector (such as the ferrule assembly) and the adapter, so that the damage to the inside of the optical fiber connector caused by the external environment (such as foreign matters, water vapor, dust and the like in the external environment) can be prevented, and the protection level of the optical fiber connector can be improved.

In one possible implementation, the locking member is rotatable around the entire circumference of the integral structure. The locking piece can rotate in a whole 360-degree circumference relative to the integral structural piece, the structural piece with limited rotation angle is not required to be designed, the structure of the locking piece and the integral structural piece is simplified, the design difficulty and the forming difficulty of the locking piece and the integral structural piece are reduced, and the cost of the optical fiber connector is reduced.

In one possible implementation manner, the inner wall of the locking member is provided with a first limiting boss in a surrounding manner, the outer wall of the integral structural member is provided with a second limiting boss in a surrounding manner, and the second limiting boss is abutted against one side, facing the first end face of the locking member, of the first limiting boss. The butt cooperation of first spacing boss and the spacing boss of second can play spacing effect to the retaining member, makes the retaining member can not take off from the protective sheath one end of integral type structure and fall down.

In one possible implementation, the locking member has at least two locking protrusions on an inner wall of the first end of the locking member, the at least two locking protrusions being spaced apart circumferentially about the inner wall of the locking member, the locking protrusions being configured to be inserted into locking grooves of the fiber optic adapter and rotatable relative to the fiber optic adapter along the locking grooves. When the optical fiber connector and the optical fiber adapter are inserted, the locking lug of the locking piece can be inserted into the locking groove through the second opening of the locking groove, the locking piece is rotated, the locking lug and the second opening of the locking groove are dislocated, the locking lug is fixed in the locking groove, locking connection of the locking piece and the optical fiber adapter is further realized, locking stability is higher, and the locking piece has the effects of vibration prevention and locking.

In one possible implementation manner, the optical fiber connector further comprises a tail component, the tail component is located at one end of the integrated structural component, which is opposite to the ferrule component, one end of the tail component is connected with the connecting shaft, the other end of the tail component is used for being connected with the optical cable, a second channel for the optical fiber of the optical cable to pass through is formed in the tail component, and the optical fiber of the optical cable can pass through the second channel of the tail component and extend into the first channel of the connecting shaft so as to realize connection between the optical fiber and the ferrule component.

One end of the tail assembly is abutted with the second end of the locking piece, so that the locking piece can be limited, the locking piece cannot fall off from one end of the connecting shaft of the integral structural piece, the locking piece can be stably arranged on the integral structural piece, and the assembly stability of the locking piece and the locking piece is guaranteed.

In one possible implementation, the optical fiber connector further comprises a dust cap, the dust cap is used for being in plug-in fit with the ferrule assembly, the dust cap is used for protecting the optical fiber connector when the optical fiber connector is not inserted into the optical fiber adapter, and the function of water and dust prevention is achieved.

The optical fiber connector further comprises a connecting rope, one end of the connecting rope is sleeved on the integrated structural member, and the other end of the connecting rope is sleeved on the dustproof cap, so that the dustproof cap is fastened and fixed on the optical fiber connector through the connecting rope.

In addition, one end of connecting the rope is located between retaining member and the afterbody subassembly, makes the second end of retaining member can the butt on connecting the rope, also can realize spacing to the retaining member, increases fiber connector structural design's flexibility.

In one possible implementation manner, the dustproof cap and the connecting rope are integrated into a whole, that is, the dustproof cap and the connecting rope can be integrated into a whole, so that parts of the optical fiber connector are reduced, and the structural design is simplified.

In one possible implementation, when the dust cap is inserted into the ferrule assembly, the dust cap is sleeved on the inner side of the first end of the locking member, the outer wall of the dust cap is provided with a raised sealing portion, and the sealing portion is respectively abutted with the outer wall of the dust cap and the inner wall of the locking member. Can realize the sealed effect between shield and the fiber connector through sealing portion, prevent that external environment from causing the damage to the fiber connector is inside, in addition, shield outer wall arch forms sealing portion, that is to say, sealing portion and shield integrated into one piece's structure, further reduces fiber connector's spare part, simplifies structural design complexity.

In one possible implementation manner, the optical fiber connector further comprises a sealing element, wherein an assembly groove is formed on the outer wall of the integrated structural member in a surrounding manner, the sealing element is fixed in the assembly groove, and the sealing element is respectively abutted with the outer wall of the integrated structural member and the inner wall of the locking member. Can realize the sealed effect between retaining member and the integral type structure through the sealing member, make the fiber connector can reach IP68 protection level, the effectual damage that prevents external environment to the inside damage that causes of fiber connector.

In one possible implementation manner, one end of the protective sleeve, which is opposite to the connecting shaft, protrudes out of the first end of the locking piece, at least two through grooves are formed in the protective sleeve, the at least two through grooves are distributed at intervals in the circumferential direction of the protective sleeve, the extending direction of the through grooves is parallel to the axial direction of the connecting shaft, and first openings which are respectively communicated with the through grooves are formed in the end face, opposite to the connecting shaft, of the protective sleeve.

The protective sleeve is used for being in plug-in fit with the annular groove of the optical fiber adapter, and the through groove is used for being in plug-in fit with the positioning piece of the optical fiber adapter. The cooperation of ring channel and protective sheath and the cooperation of setting element and logical groove can play the guide effect to the grafting of fiber connector and fiber adapter to the cooperation of setting element and logical groove can also restrict the rotation of protective sheath, and then prevents that relative fiber adapter such as lock pin subassembly, integral type structure from rotating.

In one possible implementation, the width of the first opening gradually decreases from an end of the first opening remote from the through groove to an end of the first opening adjacent to the through groove in the axial direction. The shape of the first opening can be a flaring shape, even when the optical fiber connector and the optical fiber adapter are spliced, the positioning piece is not aligned with the centers of the through groove and the first opening, and can slide into the through groove under the guiding action of the flaring first opening, so that the splicing efficiency and the splicing accuracy are improved, and the damage to the ferrule can be reduced or avoided.

In one possible implementation, the connecting shaft extends into the protective sleeve at a portion of one end of the connecting shaft connected to the protective sleeve, the ferrule assembly is located in the protective sleeve, and the other end of the ferrule assembly is connected to a portion of the connecting shaft extending into the protective sleeve. That is, the plug-in connection between the core-inserting assembly and the connecting shaft is realized in the protective sleeve, but the plug-in assembly is not inserted into the connecting shaft after penetrating through the protective sleeve, so that the assembly of the core-inserting assembly and the integrated structural member is facilitated, and the assembly efficiency of the optical fiber connector is improved.

In one possible implementation, the ferrule assembly includes a ferrule and a ferrule connector, the ferrule connector is sleeved outside the ferrule, the ferrule connector is connected with the connection shaft, and the ferrule is sleeved outside an optical fiber of an optical cable passing through the connection shaft.

The one end of lock pin back to the connecting axle is protruding outside the one end of lock pin connecting piece, protective sheath back to the connecting axle respectively. The insert core protrudes out of the end face of one end of the optical fiber connector, when the optical fiber connector and the optical fiber adapter are inserted, an operator can see the position of the insert core, so that the insert core and the insert core component are aligned with the insertion hole of the optical fiber adapter, the insertion success rate is improved, the insert core is prevented from being collided for a plurality of times due to misplug, the insert core is prevented from being damaged, and the cleaning operation of the insert core can be realized conveniently.

A second aspect of the embodiment of the present application provides an optical fiber connector, including a ferrule assembly and a connection assembly, where one end of the ferrule assembly is used for being in plug-in fit with a jack of an optical fiber adapter, the other end of the ferrule assembly is connected with the connection assembly, the connection assembly has a first channel for an optical fiber of an optical cable to pass through, and the other end of the ferrule assembly is used for being connected with the optical fiber passing through the first channel of the connection assembly.

The optical fiber connector further comprises a dustproof cap and a connecting rope, the dustproof cap is used for being in plug-in fit with the ferrule assembly, one end of the connecting rope is sleeved on the connecting assembly, the other end of the connecting rope is sleeved on the dustproof cap, and the dustproof cap and the connecting rope are integrated into a structural member.

In one possible implementation, the optical fiber connector further includes a locking member, the locking member being disposed around the outside of the connection assembly, the first end of the locking member being configured to be connected to the optical fiber adapter.

When the dustproof cap is inserted into the core inserting assembly, the dustproof cap is sleeved on the inner side of the first end of the locking piece, the outer wall of the dustproof cap is provided with a convex sealing part, and the sealing part is respectively abutted with the outer wall of the dustproof cap and the inner wall of the locking piece.

A third aspect of the present application provides an optical fiber connector, including a ferrule assembly and a connection assembly, wherein one end of the ferrule assembly is used for being in plug-in fit with a jack of an optical fiber adapter, the other end of the ferrule assembly is connected with the connection assembly, a first channel for an optical fiber of an optical cable to pass through is provided in the connection assembly, and the other end of the ferrule assembly is used for being connected with the optical fiber passing through the first channel of the connection assembly.

The optical fiber connector further comprises a locking piece, the locking piece is sleeved on the outer side of the connecting assembly and used for being connected with the optical fiber adapter, the locking piece is in running fit with the connecting assembly, and the locking piece can rotate around the whole circumference of the connecting assembly.

A fourth aspect of the present application provides an optical fiber connector, including an optical fiber adapter and any one of the optical fiber connectors, where an insertion hole is formed at one end of the optical fiber adapter, and a ferrule assembly of the optical fiber connector is in plug-in fit with the insertion hole of the optical fiber adapter. Through including the optical fiber connector, the optical fiber connector can realize the scene end to the optical cable, and then realizes the cloth of optical cable and put the connection through optical fiber connector and optical fiber adapter grafting, and easy operation is convenient, also can realize the plug and play of optical fiber connector. And the optical fiber connector has fewer parts, simplifies the structural design and the molding assembly difficulty, and is beneficial to reducing the cost of the optical fiber connector.

In one possible implementation manner, the first end of the locking member is sleeved on one end of the optical fiber adapter, at least two locking grooves are formed in the outer wall of one end of the optical fiber adapter, the at least two locking grooves are distributed on the periphery of the outer wall of the optical fiber adapter at intervals, second openings which are respectively communicated with the locking grooves are formed in the end face of one end of the optical fiber adapter, and the locking protruding blocks on the inner wall of the first end of the locking member are inserted in the locking grooves through the second openings and can rotate relative to the optical fiber adapter along the locking grooves.

In one possible implementation manner, a positioning piece and an annular groove are further arranged at one end of the optical fiber adapter, two ends of the annular groove are respectively located at two sides of the positioning piece, the annular groove is distributed around the jack, the annular groove is in plug-in fit with the protective sleeve of the optical fiber connector, and the positioning piece is in plug-in fit with the through groove on the protective sleeve.

Drawings

Fig. 1 is a schematic structural diagram of an FTTH network according to an embodiment of the present application;

fig. 2 is a schematic partial structure of an optical fiber connector according to an embodiment of the present application;

FIG. 3a is a schematic diagram of the optical fiber connector of FIG. 2;

FIG. 3b is a schematic diagram illustrating a disassembly structure of the optical fiber connector of FIG. 2;

FIG. 4 is a schematic cross-sectional view of the optical fiber connector of FIG. 2;

FIG. 5 is a schematic view of the integrated structure of FIG. 4;

FIG. 6 is a schematic diagram of an optical fiber adapter according to an embodiment of the present application;

FIG. 7 is a schematic cross-sectional view of the integrated structural member of FIG. 5;

FIG. 8 is a schematic cross-sectional view of the retaining member of FIG. 3 b;

fig. 9 is a front view of a part of the optical fiber connector in fig. 3 b.

Reference numerals illustrate:

100-center machine room;

200-a distribution segment optical cable;

300-pre-connecting the distribution points;

400-home segment optical cable;

500-user terminal box;

10-an optical fiber connector;

11-a ferrule assembly; 111-inserting a core; 112-ferrule connectors;

12-an integral structural member; 121-a protective sleeve; 1211-a second limit boss; 122-connecting shaft; 123-through grooves; 124-a first opening; 125-fitting groove;

13-locking member; 131-a first limit boss; 132-locking projections; 133-an indicator;

14-tail assembly; 141-a tail sleeve; 142-sleeve;

15-a dust cap;

16-connecting ropes;

17-seals;

18-an elastic member;

a 20-fiber optic adapter;

21-a jack;

22-locking grooves; 22 a-a second opening;

23-positioning pieces;

24-an annular groove;

25-status indication symbol;

30-optical cable.

Detailed Description

The terminology used in the description of the embodiments of the application herein is for the purpose of describing particular embodiments of the application only and is not intended to be limiting of the application.

The embodiment of the application provides an optical fiber connector and an optical fiber connector, which can be applied to an optical communication system and are used for realizing connection between optical cables.

Fig. 1 is a schematic structural diagram of an FTTH network according to an embodiment of the present application.

Illustratively, taking an FTTH network system as an example, the FTTH network system may include a central office 100 (CO), a pre-connection distribution point 300 (connectorised fiber distribution point CFDP), and a subscriber terminal box 500 (customer splicing point CSP). The central office 100 and the pre-connection distribution point 300 may be connected by a distribution segment optical cable 200, and the pre-connection distribution point 300 and the subscriber terminal box 500 may be connected by a service segment optical cable 400.

The optical fiber connector provided by the embodiment of the present application may be suitable for the connection between the home segment optical cable 400 and the pre-connection distribution point 300. Of course, in some examples, the optical fiber connector and the optical fiber connector provided in the embodiments of the present application may be applied to other types of optical communication network systems.

In the current FTTH network system, in the laying process of the fiber optic cable of the home segment, a fusion welding mode is mostly adopted to realize the connection between the optical fibers of the fiber optic cable. Illustratively, the pre-connectorized distribution point 300 has a fiber box within which fiber ends corresponding to each subscriber are distributed, the fiber ends of each subscriber are fusion spliced with the optical fibers of the drop cable 400 using a fiber fusion splicer, and then the drop cable is laid down to each subscriber. At the other end of the drop cable 400, the optical fibers of the drop cable 400 are also connected to the optical fibers in the subscriber terminal boxes 500 of each individual subscriber by means of fiber fusion techniques. The problem brought by the welding mode is that special optical fiber welding equipment is needed, the technical requirement on operators is high, the convenience is poor, and the time for the whole laying process of the fiber optic cable at the home-entrance section is too long.

Based on this, the embodiment of the application provides an optical fiber connector, which may include an optical fiber connector and an optical fiber adapter, where the optical fiber connector includes an inserting core component, a protecting sleeve and a connecting shaft, the connecting shaft may be connected with the inserting core component, the protecting sleeve may be sleeved outside the inserting core component, an optical fiber of an optical cable (such as a home-section optical cable) may pass through the connecting shaft and be connected with the inserting core component, the inserting core component may be in plug-in fit with one end of the optical fiber adapter, and the other end of the optical fiber adapter may be connected with an optical fiber of another optical cable (such as an optical fiber in a fiber distribution box) through another optical fiber connector, so as to realize connection between the two optical cables.

The fiber connector can be used for manufacturing the fiber cable at the home section into an end on site, is spliced to one end of the fiber adapter, is connected with the fiber (the fiber in the fiber splitting box) at the other end of the adapter, and realizes the access of a user. The other end of the fiber cable at the home section can also be connected with the optical fiber of the user terminal box in a plugging mode through the optical fiber connector and the optical fiber adapter. Professional equipment such as optical fiber fusion splicer has been saved, and easy operation is convenient into one end, shortens the time spent of entering the optical cable cloth of family section.

Fig. 2 is a schematic partial structure of an optical fiber connector according to an embodiment of the present application.

Referring to fig. 2, the optical fiber connector provided in the embodiment of the application may include an optical fiber connector 10 and an optical fiber adapter 20, wherein one end of the optical fiber connector 10 may be fixed with an optical cable 30, an optical fiber of the optical cable 30 may extend into the other end of the optical fiber connector 10, the other end of the optical fiber connector 10 may be connected with the optical fiber adapter 20 by a plugging fit manner, the optical fiber connector 10 may be plugged onto the optical fiber adapter 20, and the optical fiber connector 10 may also be pulled out from the optical fiber adapter 20.

In the embodiment of the present application, referring to fig. 2, the plugging direction of the optical fiber connector 10 and the optical fiber adapter 20 is referred to as the x direction in the figure. Illustratively, a jack 21 may be formed at one end of the optical fiber adapter 20 along the plugging direction, one end of the optical fiber connector 10 along the plugging direction is connected to the optical cable 30, and the other end of the optical fiber connector 10 along the plugging direction may be plugged into the jack 21.

The optical fiber connector may include two optical fiber connectors, and at least one of the optical fiber connectors may be the optical fiber connector 10 provided in the embodiment of the present application. One end of each of the two optical fiber connectors can be respectively in plug-in fit with two ends of the optical fiber adapter 20, and when the two optical fiber connectors are respectively plugged in two ends of the optical fiber adapter 20, the optical fibers in the two optical fiber connectors are in butt-joint connection, so that connection between the two optical cables is realized.

Fig. 3a is a schematic structural diagram of the optical fiber connector in fig. 2.

Referring to fig. 3a, the optical fiber connector 10 may include a connection component 12a and a locking member 13, where the locking member 13 is sleeved on the outer side of the connection component 12a, the connection component 12a may be in plug-in fit with the optical fiber adapter, and the locking member 13 is used to implement locking connection between the optical fiber connector 10 and the optical fiber adapter.

Fig. 3b is a schematic diagram of a split structure of the optical fiber connector in fig. 2.

Referring to fig. 3b, the optical fiber connector 10 further includes a ferrule assembly 11, where the ferrule assembly 11 may be located at another end of the optical fiber connector 10 along the plugging direction, and one end of the ferrule assembly 11 may be plugged and matched with the jack of the optical fiber adapter.

The connection assembly 12a may include a protective sleeve 121 and a connection shaft 122, the protective sleeve 121 and the connection shaft 122 being sequentially connected.

In some examples, as shown in fig. 3b, the protective sleeve 121 and the connecting shaft 122 may form a unitary structure 12, that is, the protective sleeve 121 and the connecting shaft 122 are one unitary structure formed by integral molding, that is, the connecting assembly 12a is a unitary structure 12 formed by integral molding of the protective sleeve 121 and the connecting shaft 122.

For example, the protective sleeve 121 and the connecting shaft 122 may be formed into the integral structural member 12 by injection molding, or the like, the integral structural member 12 may be a hollow columnar structure, and the axial direction of the integral structural member 12 may be consistent with the axial direction of the connecting shaft 122 and may be parallel to the plugging direction.

The connecting shaft 122 and the protective sleeve 121 form the integrated structural member 12, so that parts of the optical fiber connector 10 can be reduced, the structural design of the optical fiber connector 10 is simplified, the assembly efficiency of the optical fiber connector 10 is improved, and the assembly difficulty and the assembly cost of the optical fiber connector 10 are reduced.

Of course, in some other examples, the connection assembly 12a may not be formed as a unitary structure 12, i.e., the protective sleeve 121 and the connection shaft 122 may be two separate structures. In the embodiment of the present application, the connection assembly 12a is taken as an example of the integral structural member 12.

Fig. 4 is a schematic cross-sectional view of the optical fiber connector in fig. 2. Fig. 4 may be a schematic cross-sectional view of a fiber optic connector along a plane parallel to the axial direction of the connection axis.

Referring to fig. 4, one end of the connection shaft 122 is connected with the protection sleeve 121, the other end of the ferrule assembly 11 may be connected with one end of the connection shaft 122 in a plugging manner, the protection sleeve 121 may be sleeved on the outer side of the ferrule assembly 11, so as to protect the ferrule assembly 11, and reduce or avoid damage to the ferrule assembly 11 (especially the ferrule 111) caused by the optical fiber connector 10 during plugging operation or accidental falling.

It should be noted that, the protective sleeve 121 is sleeved on the outer side of the ferrule assembly 11, and a certain gap may be reserved between the inner wall of the protective sleeve 121 and the ferrule assembly 11.

The connecting shaft 122 is provided with a first channel 122a, the optical fiber of the optical cable can pass through the first channel 122a, the first channel 122a can extend along the axial direction of the connecting shaft 122, that is, the optical fiber of the optical cable can extend from the other end (the end connected with the tail assembly 14) of the connecting shaft 122 to the end connected with the ferrule assembly 11 through the first channel 122a along the axial direction, so that the optical fiber is connected with the other end of the ferrule assembly 11, and the connection between the optical fiber of the optical cable and the optical fiber adapter 20 can be realized through the ferrule assembly 11.

Taking the field arrangement of the fiber optic cable of the service section as an example, in the actual arrangement, one end of the fiber optic cable of the service section can be fixed with the optical fiber connector 10, and the optical fiber of the end can pass through the first channel 122a of the connecting shaft 122 to be connected with the ferrule assembly 11, so as to realize the field end formation of one end of the fiber optic cable of the service section. The ferrule assembly 11 is connected with one end of an optical fiber adapter in a plugging manner, the optical fiber adapter can be positioned at the side of the fiber dividing box, the other end of the optical fiber adapter can be connected with a ferrule assembly of another optical fiber connector in a plugging manner, the two ferrule assemblies are connected in a butt joint manner in the optical fiber adapter, and the ferrule assembly of the other optical fiber connector can be connected with an optical fiber in the fiber dividing box, so that one end of a fiber-in section optical cable is connected with an optical cable in the fiber dividing box. The other end of the home section optical cable can be spliced with an optical fiber adapter positioned at the side of the user terminal box through an optical fiber connector, so that the connection with the optical fiber in the user terminal box is realized. Therefore, the fiber connectors connected to the two ends of the fiber-in section are respectively spliced with the fiber adapter on the fiber box side and the fiber adapter on the fiber box side, so that the connection arrangement of the fiber-in section can be realized, professional equipment of fiber fusion is omitted, the fiber-in section is plug-and-play, the operation is simple and convenient, the convenience of the arrangement of the fiber-in section is obviously improved, and the arrangement efficiency is improved.

In the embodiment of the present application, as shown in fig. 4, in the integral structure 12, one end of the connecting shaft 122 connected to the protective sleeve 121 may partially extend into the protective sleeve 121 (see fig. 5), the ferrule assembly 11 may be located in the protective sleeve 121, and the other end of the ferrule assembly 11 is connected to the connecting shaft 122 extending into the protective sleeve 121, for example, the other end of the ferrule assembly 11 is sleeved outside the portion of the connecting shaft 122 extending into the protective sleeve 121.

That is, the plug connection between the ferrule assembly 11 and the connection shaft 122 is realized in the protection sleeve 121, instead of the plug assembly 11 penetrating through the protection sleeve 121 and extending into the connection shaft 122 to realize the plug connection with the connection shaft 122, the assembly of the ferrule assembly 11 and the integral structure 12 is facilitated, and the assembly efficiency of the optical fiber connector 10 is improved.

As shown in fig. 3b and fig. 4, the ferrule assembly 11 may include a ferrule 111 and a ferrule connector 112, the ferrule connector 112 may be sleeved on the outer side of the ferrule 111, and the ferrule connector 112 may be connected with one end of the connecting shaft 122 in a plugging manner, so as to fix the ferrule 111 and the integral structural member 12. The optical fiber passing through the first channel 122a of the connecting shaft 122 can be sleeved inside the ferrule 111 to realize connection with the ferrule 111, and then the connection of the optical fibers in the two optical cables is realized through the butt connection of the two ferrule assemblies 11 in the optical fiber adapter.

The optical fiber connector 10 may further include an elastic member 18, as shown in fig. 3b, for example, the elastic member 18 may be a spring member, and as shown in fig. 4, the ferrule connector 112 may be sleeved outside the connection shaft 122, and the elastic member 18 may be disposed between the ferrule connector 112 and the connection shaft 122, so that an elastic expansion allowance is provided between the ferrule assembly 11 and the connection shaft 122 in an axial direction. When the two core inserting assemblies are respectively spliced with the optical fiber adapter, the two core inserting assemblies are in butt joint, the elastic piece 18 can be compressed, the butt joint connection firmness between the two core inserting assemblies can be improved through the resilience force of the elastic piece 18, and further the reliability of connection between optical cables can be improved.

The ferrule 111 may be a hollow columnar structure, and may have a micropore extending along an axial direction in the ferrule 111, and an optical fiber of the optical cable may be inserted and fixed in the micropore, so as to realize connection between the ferrule assembly 11 and the optical fiber. It will be appreciated that the ferrule assembly 11 is sleeved in the protective sleeve 121, and that the axial directions of the ferrule 111, the protective sleeve 121 and the connecting shaft 122 may be identical.

Illustratively, the ferrule 111 may be a ceramic ferrule.

Referring to fig. 4, an end of the ferrule 111 facing away from the connection shaft 122 may protrude beyond an end of the ferrule connector 112 facing away from the connection shaft 122, and an end of the ferrule 111 facing away from the connection shaft 122 may protrude beyond an end of the protective sleeve 121 facing away from the connection shaft 122, that is, the ferrule 111 protrudes beyond an end face of the optical fiber connector 10 to which the optical fiber adapter is connected.

When the optical fiber connector 10 and the optical fiber adapter are plugged, an operator can see the position of the ferrule 111, so that the ferrule 111 and the ferrule assembly 11 can be aligned with the jack of the optical fiber adapter conveniently, the plugging success rate is improved, the ferrule 111 is prevented from being collided for a plurality of times due to misplug, the ferrule 111 is prevented from being damaged, and the cleaning operation of the ferrule 111 can be realized conveniently.

With continued reference to fig. 3b and 4, the locking member 13 may be sleeved on the outer side of the integral structural member 12, and the locking member 13 may be in a rotational fit with the integral structural member 12, so that the locking member 13 may rotate relative to the integral structural member 12.

Wherein, the locking member 13 is sleeved on the outer side of the integral structural member 12, in order to ensure that the locking member 13 can be matched with the optical fiber adapter, a certain gap can be reserved between the inner wall of the first end 13a of the locking member 13 and the integral structural member 12, and the inner wall of the second end 13b of the locking member 13 and the outer wall of the integral structural member 12 can have no gap.

When the optical fiber connector 10 is in plug connection with the optical fiber adapter, the first end 13a of the locking piece 13 can be in locking fit with the optical fiber adapter, so that locking connection between the optical fiber connector 10 and the optical fiber adapter is realized, and the connection fit fastness between the optical fiber connector 10 and the optical fiber adapter is improved.

The first end 13a of the locking member 13 may be sleeved outside one end of the optical fiber adapter, and since the locking member 13 is further sleeved outside the integral structure 12, the locking member 13 may be wrapped outside a connection position between the optical fiber connector 10 and the optical fiber adapter, so as to prevent damage to the inside of the optical fiber connector 10 caused by an external environment (such as foreign matters, moisture, dust, etc. in the external environment), and facilitate improvement of a protection level of the optical fiber connector.

In some examples, the locking member 13 and the integral structural member 12 are not provided with structural members limiting the relative rotation angle of the locking member 13 and the integral structural member 12, so that the locking member 13 can rotate around the whole circumference of the integral structural member 12, that is, the locking member 13 can rotate around the whole circumference of the integral structural member 12 by 360 degrees, the structural members limiting the rotation angle are not needed, the structures of the locking member 13 and the integral structural member 12 are simplified, the design difficulty and the molding difficulty of the locking member 13 and the integral structural member 12 are reduced, and the cost of the optical fiber connector 10 is reduced.

For example, to achieve stable assembly of the locking member 13 on the integral structure 12, with continued reference to fig. 4, a first limiting boss 131 (shown in fig. 8) may be disposed on an inner wall of the locking member 13, and the first limiting boss 131 may be disposed around a circumference of the inner wall of the locking member 13.

A second stop boss 1211 (shown with reference to fig. 5) may be provided on the outer wall of the integral structure 12, and the second stop boss 1211 may be provided around the circumference of the outer wall of the integral structure 12.

With continued reference to fig. 4, the locking member 13 is sleeved on the outer side of the integral structural member 12, the second limiting boss 1211 may abut against a side, facing the end face of the first end 13a of the locking member 13, of the first limiting boss 131 and the second limiting boss 1211, and the abutting engagement of the first limiting boss 131 and the second limiting boss 1211 may perform a limiting function on the locking member 13, so that the locking member 13 cannot be removed from one end of the protective sleeve 121 of the integral structural member 12.

Referring to fig. 4, the optical fiber connector 10 may further include a tail component 14, where the tail component 14 is located at one end of the integral structure 12 opposite to the ferrule component 11, one end of the tail component 14 may be connected to the other end of the connecting shaft 122, and the other end of the tail component 14 may be fixedly connected to the optical cable, so as to realize the fixed connection between the optical fiber connector 10 and the optical cable.

The tail assembly 14 may also have a hollow cylindrical structure, the axial direction of the tail assembly 14 coincides with the axial direction of the connecting shaft 122, the tail assembly 14 may have a second channel 141a therein, the second channel 141a in the tail assembly 14 may communicate with the first channel 122a in the connecting shaft 122, and the second channel 141a in the tail assembly 14 may also extend along the axial direction of the connecting shaft 122. The optical fibers of the cable may pass axially through the second channel 141a of the tail assembly 14 and extend into the first channel 122a of the connection shaft 122 to effect connection of the optical fibers to the ferrule assembly 11.

One end of the tail assembly 14 is connected with the connecting shaft 122, and illustratively, one end of the tail assembly 14 can be sleeved outside one end of the connecting shaft 122, which is opposite to the protective sleeve 121, one end of the tail assembly 14 can be abutted with the end of the second end 13b of the locking member 13, the tail assembly 14 is abutted with the locking member 13, so that the locking member 13 can not drop off from one end of the connecting shaft 122 of the integral structural member 12, and the locking member 13 can be stably arranged on the integral structural member 12 to ensure the assembly stability of the two components.

Or in some examples, the optical fiber connector 10 may further include a dust cap 15 (referring to fig. 3 b), where the dust cap 15 may be in plug-fit with the ferrule assembly 11, and the dust cap 15 is used to protect the optical fiber connector 10 when not inserted into the optical fiber adapter, so as to play a role in preventing water and dust.

It will be appreciated that the dust cap 15 and the fiber optic connector 10 may be mated in the same manner as the fiber optic adapter and the fiber optic connector 10. For example, the first end 13a of the locking member 13 may be sleeved outside one end of the dust cap 15.

As shown in fig. 3b and fig. 4, the optical fiber connector 10 may further include a connecting rope 16, one end of the connecting rope 16 may be sleeved on the integral structural member 12, and the other end of the connecting rope 16 may be sleeved on the dust cap 15, so that the dust cap 15 is tethered and fixed on the optical fiber connector 10 through the connecting rope 16.

For example, the connecting cord 16 may have one connecting loop at each end, one of which may be sleeved on the integral structure 12, and the other of which may be sleeved on the dust cap 15.

One end of the connecting rope 16 sleeved with the integral structure 12 can be located between the locking member 13 and the tail assembly 14, as shown in fig. 4, so that the second end of the locking member 13 can be abutted against the connecting rope 16, the connecting rope 16 can also play a limiting role on the locking member 13, and stable assembly of the locking member 13 on the integral structure 12 is ensured.

In some examples, the dust cap 15 and the connecting rope 16 may be integrated into one piece, that is, the dust cap 15 and the connecting rope 16 may be integrated into one piece, so that the number of parts of the optical fiber connector 10 can be further reduced, the structural design of the optical fiber connector 10 is simplified, the assembly efficiency of the optical fiber connector 10 is improved, and the assembly difficulty and the assembly cost of the optical fiber connector 10 are reduced.

The outer wall of the dust cap 15 may have a protruding sealing portion 152 (refer to fig. 4), when the dust cap 15 and the ferrule assembly 11 are in plug-in fit, the locking member 13 is sleeved on the outer side of the dust cap 15, the sealing portion 152 may be respectively abutted against the outer wall of the dust cap 15 and the inner wall of the locking member 13, the sealing effect between the dust cap 15 and the optical fiber connector 10 can be achieved through the sealing portion 152, and damage to the inside of the optical fiber connector 10 caused by the external environment is prevented.

In addition, the sealing part 152 is formed on the outer wall of the dust cap 15 in a protruding way, that is, the sealing part 152 and the dust cap 15 are integrally formed into an integral structural part, so that the parts of the optical fiber connector are further reduced, and the structural design is simplified.

With continued reference to fig. 4, tail assembly 14 may include a tail sleeve 141 and a sleeve 142, and a second channel 141a may be formed inside sleeve 142 so that the fiber optic cable may be threaded inside sleeve 142, and sleeve 142 may be fixedly connected to the fiber optic cable.

The sleeve 142 may be connected to the connection shaft 122 such that the second channel 141a inside the sleeve 142 communicates with the first channel 122a inside the connection shaft 122, the tail sleeve 141 may be sleeved outside the sleeve 142, one end of the tail sleeve 141 may be connected to an end of the connection shaft 122 opposite to the protection sleeve 121, for example, one end of the tail sleeve 141 may be sleeved outside an end of the connection shaft 122 opposite to the protection sleeve 121.

Referring to fig. 4, the optical fiber connector 10 may further include a sealing member 17, and an outer wall of the integral structure 12 may be provided with an assembly groove 125 (as shown in fig. 7), where the assembly groove 125 may be circumferentially disposed around the outer wall of the integral structure 12. The sealing element 17 can be fixed in the assembly groove 125, and the sealing element 17 is respectively abutted with the outer wall of the integral structural member 12 and the inner wall of the locking member 13, and the sealing effect between the locking member 13 and the integral structural member 12 can be realized through the sealing element 17, so that the optical fiber connector 10 can reach the IP68 protection level, wherein the IP68 can be the highest level of the dustproof and waterproof level standard in the GB/T4208-2017 shell protection level, and the damage to the inside of the optical fiber connector 10 caused by the external environment can be effectively prevented.

The sealing element 17 may be an O-ring or an O-ring, so as to match with the shapes of the integral structural member 12 and the locking member 13, thereby facilitating improvement of the sealing effect.

The connection relationship between the optical fiber connector and the optical fiber adapter is described below.

When the optical fiber connector is in plug-in fit with one end of the optical fiber adapter, in the optical fiber connector, the core inserting assembly, the locking piece and the protective sleeve with the integral structure can be respectively matched with one end of the optical fiber adapter.

Illustratively, with continued reference to FIG. 4, the protective sleeve 121 of the integral structure 12 is disposed protruding from the locking member 13, and in particular, an end of the protective sleeve 121 facing away from the connecting shaft 122 is disposed protruding beyond the first end of the locking member 13.

Fig. 5 is a schematic structural view of the integrated structural member in fig. 4.

Referring to fig. 5, at least two through grooves 123 may be formed on the protective sleeve 121, the at least two through grooves 123 being spaced apart along the circumferential direction of the protective sleeve 121, and an extending direction of each through groove 123 being parallel to the axial direction of the connecting shaft 122. As in the present example, taking two through slots 123 respectively formed on the protective sleeve 121 as an example, the two through slots 123 may be uniformly spaced along the circumferential direction of the protective sleeve 121, so that the two through slots 123 may be symmetrically disposed with respect to the axis of the connecting shaft.

At least two first openings 124 may be formed on an end surface of the protective cover 121 opposite to the connecting shaft 122, and the at least two first openings 124 are respectively correspondingly communicated with the at least two through grooves 123.

Fig. 6 is a schematic structural diagram of an optical fiber adapter according to an embodiment of the present application.

Referring to fig. 6, a jack 21 may be formed at one end of the fiber optic adapter 20, and the jack 21 is configured to be in plug-fit with the ferrule assembly 11 of the fiber optic connector 10.

The optical fiber adapter 20 may further be provided with an annular groove 24 and a positioning member 23 at one end, two ends of the annular groove 24 may be located at two sides of the positioning member 23, respectively, and the annular groove 24 may be distributed around the insertion hole 21.

When the optical fiber connector 10 and the optical fiber adapter 20 are in plug-in fit (as shown in fig. 4 and 6), the ferrule assembly 11 is plugged into the jack 21, the protection sleeve 121 can be plugged into the annular groove 24, and the positioning member 23 can be located in the through groove 123 of the protection sleeve 121 through the first opening 124. The cooperation of the annular groove 24 and the protective sleeve 121 and the cooperation of the positioning piece 23 and the through groove 123 can play a guiding role in the insertion of the optical fiber connector 10 and the optical fiber adapter 20, and the cooperation of the positioning piece 23 and the through groove 123 can also limit the rotation of the protective sleeve 121, so that the rotation of the ferrule assembly 11, the integral structure 12 and the like relative to the optical fiber adapter 20 is prevented.

Fig. 7 is a schematic cross-sectional view of the integrated structure of fig. 5, and it is understood that fig. 7 may be a schematic cross-sectional view of the integrated structure along a plane parallel to the axial direction of the connecting shaft.

To facilitate accurate alignment of the positioning member 23 with the first opening 124, referring to fig. 7, the width of the first opening 124 may be gradually reduced (as shown in conjunction with fig. 5) from an end of the first opening 124 away from the through slot 123 to an end of the first opening 124 adjacent to the through slot 123 along the axial direction, and it is understood that the width of the first opening 124 refers to the distance between two opposite sidewalls of the first opening 124.

That is, the shape of the first opening 124 may be a flared shape, and it is understood that the first opening 124 and the through groove 123 may form a C-shaped groove shape together, and the two C-shaped grooves are symmetrically arranged in the circumferential direction of the inner wall of the protective cover 121. Even if the positioning member 23 is not aligned with the center of the through groove 123 and the first opening 124 when the optical fiber connector 10 and the optical fiber adapter 20 are plugged, the positioning member 23 can slide into the through groove 123 under the guiding action of the trumpet-shaped first opening 124, which is beneficial to improving the plugging efficiency and the plugging accuracy, and reducing or avoiding the damage to the ferrule 111.

Fig. 8 is a schematic cross-sectional view of the locking member in fig. 3b, it may be understood that the locking member is sleeved on the outer side of the integral structural member, the locking member may be a hollow cylindrical structure, an axial direction of the locking member may be consistent with an axial direction of the integral structural member (connecting shaft), and fig. 8 may be a schematic cross-sectional view of the integral structural member along a plane parallel to the axial direction.

Referring to fig. 8, the locking member 13 may have locking projections 132 on an inner wall of the first end for achieving a locking engagement with the fiber optic adapter.

Fig. 9 is a front view of a part of the optical fiber connector in fig. 3 b.

As shown in fig. 9, the number of the locking protrusions 132 may be at least two, and the at least two locking protrusions 132 may be spaced apart in the circumferential direction of the inner wall of the locking member 13. For example, in this example, taking the case that two locking protrusions 132 are provided on the inner wall of the locking member 13, the two locking protrusions 132 may be uniformly spaced along the circumferential direction of the inner wall of the locking member 13, so that the two locking protrusions 132 may be symmetrically provided with respect to the axis of the locking member 13 as a symmetry axis.

The optical fiber adapter 20 may have at least two locking grooves 22 (see fig. 6), and the locking grooves 22 may be provided at one end of the optical fiber adapter 20, and the locking grooves 22 may be spaced apart from each other in the circumferential direction of the outer wall of the one end of the optical fiber adapter 20. For example, in this example, two locking grooves 22 may be correspondingly disposed on an outer wall of one end of the optical fiber adapter 20, and the two locking grooves 22 may be uniformly spaced along a circumferential direction of the outer wall of one end of the optical fiber adapter 20, so that the two locking grooves 22 may be symmetrically disposed with respect to an axis of the optical fiber adapter 20 as a symmetry axis.

At least two second openings 22a may be formed on an end surface of the optical fiber adapter 20, and the at least two second openings 22a are respectively in corresponding communication with the at least two locking grooves 22.

When the optical fiber connector 10 and the optical fiber adapter 20 are plugged (as shown in fig. 6 and 9), the first end of the locking member 13 may be sleeved outside the end of the optical fiber adapter 20, the locking protrusion 132 on the locking member 13 may be inserted into the locking groove 22 through the second opening 22a, and the locking protrusion 132 may rotate in the locking groove 22. Therefore, the locking piece 13 is rotated to enable the locking projection 132 to rotate along the locking groove 22, so that the locking projection 132 is staggered with the second opening 22a, and thus the locking piece 13 can be matched with the locking groove 22 on the optical fiber adapter 20 through the locking projection 132 and is fixed in the locking groove 22, further locking connection of the locking piece 13 and the optical fiber adapter 20 is realized, the locking stability is higher, and the anti-vibration and anti-loose effects are achieved.

As an example, the locking groove 22 may include an axial section 222 extending in the axial direction and a circumferential section 221 extending in the circumferential direction, one end of the axial section 222 communicating with one end of the circumferential section 221 and the other end communicating with the second opening 22a, and an extension 223 may be formed on the other end of the circumferential section 221, and the extension 223 may be convexly extended toward one end face of the optical fiber adapter 20.

When the optical fiber connector 10 and the optical fiber adapter 20 are plugged, the locking lug 132 of the locking member 13 can enter the circumferential section 221 along the axial section 222 through the second opening 22a, the locking lug 132 is rotated, the locking lug 132 can rotate in the circumferential section 221, one end connected with the circumferential section 221 and the axial section 222 slides towards the other end of the circumferential section 221 and can be fixed in the extension portion 223, the extension portion 223 can play a certain limiting and fixing role on the locking lug 132, and the combination fastness between the locking member 13 and the optical fiber adapter 20 is improved.

Conversely, when the optical fiber connector 10 and the optical fiber adapter 20 need to be detached, the locking member 13 is reversely rotated, and the locking projection 132 slides out of the second opening 22a along the circumferential section 221 and the axial section 222 from the extension 223, so that the locking member 13 and the optical fiber adapter 20 can be detached, and the optical fiber connector 10 can be pulled out of the optical fiber adapter 20.

Wherein, because the inner wall of the locking member 13 has at least two spaced locking protrusions 132 circumferentially, and the corresponding optical fiber adapter 20 has at least two spaced locking grooves 22 circumferentially at one end, the arc length of the circumferential section 221 of one locking groove 22 is smaller than the entire circumference of one end of the optical fiber adapter 20, so that the locking protrusion 132 on the locking member 13 is rotated to slide along the circumferential section 221 and into the extension 223 at the other end of the circumferential section 221, the rotation arc length of the locking member 13 is smaller than one circumference, and the locking member 13 and the optical fiber adapter 20 can be locked and connected without rotating for a whole circle or multiple circles, which is time-saving and labor-saving.

It will be appreciated that, to achieve the mating between the dust cap 15 and the optical fiber connector 10 (as shown in fig. 2), the dust cap 15 may also be provided with a jack, an annular groove, a positioning member and a locking groove (as shown in fig. 2, with reference to the locking groove 151 in fig. 2), so that the ferrule assembly of the optical fiber connector 10, the protective sleeve, the through groove on the protective sleeve and the locking protrusion on the locking member can also be correspondingly mated with the jack, the annular groove, the positioning member and the locking groove on the dust cap 15, and the jack, the annular groove, the positioning member and the locking groove may have the same structure as that of the optical fiber adapter 20.

When the optical fiber connector 10 and the optical fiber adapter 20 are plugged together (as shown in fig. 9 and 6), it is necessary to align the protective sleeve 121 with the annular groove 24, the positioning member 23 with the through groove 123, and the locking projection 132 of the locking member 13 with the second opening 22a of the locking groove 22 of the optical fiber adapter 20. For facilitating the alignment operation, an indication mark 133 (shown with reference to fig. 2) may be provided on the outer wall of the locker 13, and the indication mark 133 may be an arrow or an indication line, etc.

Illustratively, the position of the indicator 133 may be set such that when the indicator 133 is aligned with the first opening 124 of the protective sleeve 121, the relative positions of the first opening 124 of the protective sleeve 121 and the locking tab 132 on the locking member 13 are matched to the relative positions of the positioning member 23 on the fiber optic adapter 20 and the second opening 22a of the locking slot 22. Only the first opening 124 of the protective sleeve 121 and the positioning member 23 need be aligned, the locking tab 132 on the locking member 13 can be aligned with the second opening 22a of the locking slot 22 on the fiber optic adapter 20.

Accordingly, in order to facilitate indicating whether the optical fiber connection head 10 and the optical fiber adapter 20 are in the locked state or the unlocked state, a state indicating symbol 25 (refer to fig. 6) may be provided on the optical fiber adapter 20, the state indicating symbol 25 may include a symbol "0" and a symbol "1", wherein the symbol "0" may indicate that the optical fiber connection head 10 and the optical fiber adapter 20 are in the unlocked state, and the symbol "1" may indicate that the optical fiber connection head 10 and the optical fiber adapter 20 are in the locked state.

Illustratively, when the indicator 133 on the locking member 13 points to the symbol "0", the locking protrusion 132 of the locking member 13 may be located at an end of the circumferential section 221 of the locking groove 22 connected to the axial section 222, and the fiber optic connector 10 and the fiber optic adapter 20 may be in an unlocked state, and the locking protrusion 132 may slide along the axial section 222 and out of the second opening 22a, and may also allow the fiber optic connector 10 to slide axially away from the fiber optic adapter 20.

When the indicator 133 on the locking member 13 points to the symbol "1", the locking protrusion 132 of the locking member 13 may be located in the extension 223 at the end of the circumferential section 221 of the locking groove 22 facing away from the axial section 222, where the fiber optic connector 10 and the fiber optic adapter 20 are in a locked state, and where the fiber optic connector 10 cannot slide axially relative to the fiber optic adapter 20.

In describing embodiments of the present application, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "coupled" should be construed broadly, and may be, for example, fixedly coupled, indirectly coupled through an intermediary, in communication between two elements, or in an interaction relationship between two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances. The terms "first," "second," "third," "fourth," and the like, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the embodiments of the present application, and are not limited thereto; although embodiments of the present application have been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (20)

1. The optical fiber connector is characterized by comprising a core inserting assembly (11), a protective sleeve (121) and a connecting shaft (122) which are sequentially connected, wherein one end of the core inserting assembly (11) is used for being in plug-in fit with a jack (21) of an optical fiber adapter (20);

The other end of the ferrule assembly (11) is connected with the connecting shaft (122), a first channel (122 a) for the optical fiber of the optical cable (30) to pass through is formed in the connecting shaft (122), the other end of the ferrule assembly (11) is used for being connected with the optical fiber passing through the first channel (122 a) of the connecting shaft (122), and the protective sleeve (121) is sleeved on the outer side of the ferrule assembly (11);

The protective sleeve (121) and the connecting shaft (122) are integrated into a structural member (12).

2. The optical fiber connector according to claim 1, further comprising a locking member (13), wherein the locking member (13) is sleeved outside the integral structure (12);

The locking piece (13) is in running fit with the integral structure (12), and a first end of the locking piece (13) is used for being connected with the optical fiber adapter (20).

3. An optical fiber connector according to claim 2, characterized in that the locking member (13) is rotatable around the entire circumference of the integral structure (12).

4. A fiber optic connector according to claim 3, wherein the inner wall of the locking member (13) is provided with a first limiting boss (131) in a surrounding manner, the outer wall of the integral structure member (12) is provided with a second limiting boss (1211) in a surrounding manner, and the second limiting boss (1211) abuts against a side of the first limiting boss (131) facing the first end face of the locking member (13).

5. The optical fiber connector according to claim 4, wherein the inner wall of the first end of the locking member (13) is provided with at least two locking projections (132), and the at least two locking projections (132) are distributed at intervals in the circumferential direction of the inner wall of the locking member (13);

the locking projection (132) is configured to be inserted into a locking groove (22) of the fiber optic adapter (20) and rotatable relative to the fiber optic adapter (20) along the locking groove (22).

6. The fiber optic connector of any of claims 2-5, further comprising a tail assembly (14), the tail assembly (14) being located at an end of the integral structure (12) facing away from the ferrule assembly (11);

One end of the tail assembly (14) is connected with the connecting shaft (122), and one end of the tail assembly (14) is abutted with the second end of the locking piece (13);

The other end of the tail assembly (14) is used for being connected with the optical cable (30), and a second channel (141 a) for the optical fiber of the optical cable (30) to pass through is formed in the tail assembly (14).

7. The fiber optic connector of claim 6, further comprising a dust cap (15) and a connecting cord (16), the dust cap (15) being adapted for mating with the ferrule assembly (11);

One end of the connecting rope (16) is sleeved on the integral structural member (12), one end of the connecting rope (16) is located between the locking piece (13) and the tail assembly (14), and the other end of the connecting rope (16) is sleeved on the dust cap (15).

8. The fiber optic connector of claim 7, wherein the dust cap (15) and the connecting cord (16) are an integral structure.

9. The optical fiber connector according to claim 8, wherein when the dust cap (15) is plugged with the ferrule assembly (11), the dust cap (15) is sleeved on the inner side of the first end of the locking member (13);

The outer wall of the dustproof cap (15) is provided with a raised sealing part (152), and the sealing part (152) is respectively abutted with the outer wall of the dustproof cap (15) and the inner wall of the locking piece (13).

10. The optical fiber connector according to any one of claims 2-5, further comprising a sealing member (17), the sealing member (17) being respectively abutted with an outer wall of the integral structure (12) and an inner wall of the locking member (13);

An assembly groove (125) is formed in the outer wall of the integral structural member (12) in a surrounding mode, and the sealing piece (17) is fixed in the assembly groove (125).

11. The optical fiber connector according to any one of claims 2-5, wherein an end of the protective sleeve (121) facing away from the connecting shaft (122) protrudes beyond the first end of the locking member (13);

At least two through grooves (123) are formed in the protective sleeve (121), the at least two through grooves (123) are distributed on the circumference of the protective sleeve (121) at intervals, the extending direction of the through grooves (123) is parallel to the axial direction of the connecting shaft (122), and a first opening (124) which is respectively communicated with the through grooves (123) is formed in the end face, facing away from the connecting shaft (122), of one end of the protective sleeve (121);

the protective sleeve (121) is used for being in plug-in fit with the annular groove (24) of the optical fiber adapter (20), and the through groove (123) is used for being in plug-in fit with the positioning piece (23) of the optical fiber adapter (20).

12. The fiber optic connector of claim 11, wherein the width of the first opening (124) decreases gradually in the axial direction from an end of the first opening (124) distal from the through slot (123) to an end of the first opening (124) adjacent to the through slot (123).

13. The optical fiber connector according to any one of claims 1 to 5, wherein an end portion of the connecting shaft (122) connected to the protective sheath (121) extends into the protective sheath (121);

The ferrule assembly (11) is positioned in the protective sleeve (121), and the other end of the ferrule assembly (11) is connected with a part of the connecting shaft (122) extending into the protective sleeve (121).

14. The optical fiber connector according to claim 13, wherein the ferrule assembly (11) comprises a ferrule (111) and a ferrule connector (112), the ferrule connector (112) being sleeved outside the ferrule (111);

The ferrule connecting piece (112) is connected with the connecting shaft (122), and the ferrule (111) is used for being sleeved outside an optical fiber of the optical cable (30) passing through the connecting shaft (122);

One end of the ferrule (111) facing away from the connecting shaft (122) protrudes out of one end of the ferrule connecting piece (112) and one end of the protective sleeve (121) facing away from the connecting shaft (122) respectively.

15. The optical fiber connector is characterized by comprising a core inserting assembly (11) and a connecting assembly (12 a), wherein one end of the core inserting assembly (11) is used for being in plug-in fit with a jack (21) of an optical fiber adapter (20);

The other end of the ferrule assembly (11) is connected with the connecting assembly (12 a), a first channel (122 a) for the optical fiber of the optical cable (30) to pass through is arranged in the connecting assembly (12 a), and the other end of the ferrule assembly (11) is used for being connected with the optical fiber passing through the first channel (122 a) of the connecting assembly (12 a);

Still include dustproof cap (15) and connecting rope (16), dustproof cap (15) be used for with lock pin subassembly (11) grafting cooperation, connecting rope (16) one end cover is established on coupling assembling (12 a), the other end cover of connecting rope (16) is established on dustproof cap (15), just dustproof cap (15) with connecting rope (16) are integral type structure.

16. The fiber optic connector of claim 15, further comprising a locking member (13), the locking member (13) being disposed around the outside of the connector assembly, a first end of the locking member (13) being configured to connect with the fiber optic adapter (20);

When the dustproof cap (15) is inserted into the ferrule assembly (11), the dustproof cap (15) is sleeved on the inner side of the first end of the locking piece (13);

The outer wall of the dustproof cap (15) is provided with a raised sealing part (152), and the sealing part (152) is respectively abutted with the outer wall of the dustproof cap (15) and the inner wall of the locking piece (13).

17. The optical fiber connector is characterized by comprising a core inserting assembly (11) and a connecting assembly (12 a), wherein one end of the core inserting assembly (11) is used for being in plug-in fit with a jack (21) of an optical fiber adapter (20);

The other end of the ferrule assembly (11) is connected with the connecting assembly (12 a), a first channel (122 a) for the optical fiber of the optical cable (30) to pass through is formed in the connecting assembly (12 a), and the other end of the ferrule assembly (11) is used for being connected with the optical fiber passing through the first channel (122 a) of the connecting assembly (12 a);

The optical fiber connector further comprises a locking piece (13), wherein the locking piece (13) is sleeved on the outer side of the connecting component (12 a), the locking piece (13) is used for being connected with the optical fiber adapter (20), the locking piece (13) is in running fit with the connecting component (12 a), and the locking piece (13) can rotate around the whole circumference of the connecting component (12 a).

18. An optical fiber connector, characterized by comprising an optical fiber adapter (20) and an optical fiber connector according to any of the preceding claims 1-14;

or comprises a fiber optic adapter (20) and a fiber optic connector according to any of the preceding claims 15 or 16;

Or comprises a fiber optic adapter (20) and a fiber optic connector according to claim 17;

A jack (21) is formed in one end of the optical fiber adapter (20), and the ferrule assembly (11) of the optical fiber connector is in plug-in fit with the jack (21) of the optical fiber adapter (20).

19. The fiber optic connector of claim 18, wherein the first end of the locking member (13) of the fiber optic connector is sleeved on one end of the fiber optic adapter (20);

The optical fiber adapter comprises an optical fiber adapter body, wherein an optical fiber adapter (20) is arranged on the outer wall of one end of the optical fiber adapter body, at least two locking grooves (22) are formed in the outer wall of one end of the optical fiber adapter body, the at least two locking grooves (22) are distributed on the circumference of the outer wall of the optical fiber adapter body at intervals, and a second opening (22 a) communicated with the locking grooves (22) is formed in the end face of one end of the optical fiber adapter body (20);

A locking lug (132) on the inner wall of the first end of the locking piece (13) is inserted into the locking groove (22) through the second opening (22 a) and can rotate relative to the optical fiber adapter (20) along the locking groove (22).

20. The fiber optic connector of claim 19, wherein the fiber optic adapter (20) is further provided with a positioning member (23) and annular grooves (24) at one end thereof, the two ends of the annular grooves (24) being located on both sides of the positioning member (23), respectively, the annular grooves (24) being distributed around the insertion hole (21);

The annular groove (24) is in plug-in fit with a protective sleeve (121) of the optical fiber connector (10), and the positioning piece (23) is in plug-in fit with a through groove (123) on the protective sleeve (121).