CN117518367A

CN117518367A - Optical fiber connector assembly

Info

Publication number: CN117518367A
Application number: CN202311713503.9A
Authority: CN
Inventors: 杨帆
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-12-13
Filing date: 2023-12-13
Publication date: 2024-02-06

Abstract

The present invention provides an optical fiber connector assembly, comprising: fiber optic adapters and fiber optic connectors; the optical fiber adapter comprises a socket, a nut and a socket dust cap; the optical fiber connector comprises a shell component and a plug component, wherein the plug component is used for inserting an optical fiber; the shell part comprises a movable shell, a core-inserting fixed pipe and a tail sheath, wherein the core-inserting fixed pipe is used for fixing a plug assembly, one end of the core-inserting fixed pipe is detachably connected with the tail sheath, and the other end of the core-inserting fixed pipe is provided with the movable shell in a sliding mode. When the plug assembly is installed, the plug assembly can be directly inserted on the optical fiber adapter to be connected and self-locked, and the plug assembly can be used in a plug-and-play mode, so that the plug assembly is prevented from being easily separated from a connection state, and is safe and firm; when the plug assembly is disassembled, the sliding movable shell of the plug assembly slides backwards, so that the plug assembly can be pulled out of the optical fiber adapter, sliding unlocking is realized, the disassembly is rapid, time and labor are saved, the operation space required by the whole assembly and disassembly process is small, and the installation requirement of high density can be met.

Description

Optical fiber connector assembly

Technical Field

The invention relates to the technical field of optical fiber connection, in particular to an optical fiber connector assembly.

Background

Most of the optical fiber connectors and adapters used at present adopt industry standard connectors and adapters. The design of this type of connector and adapter is initially aimed at solving the problems of indoor or optical fiber connection in a protective box (box), opening the box when opening the service, welding in the box, fixing the optical cable, etc.

Most of the existing optical fiber connector shells are fixed with the adapter through a screwing type locking mode or a hidden buckle mode, finger operation space is reserved around the optical fiber connector shells and the adapter due to the characteristics of the screwing type locking mode, and the operation is very difficult under the condition of limited installation space, particularly under the condition of higher density requirement; the hidden button mode is adopted, the driving arm is usually required to be arranged on the optical fiber connector shell to unlock the hidden button, after the optical fiber connector shell is connected with the adapter, if the optical fiber connector shell is required to be dismantled, the driving arm is required to be pressed from the upper part to unlock the optical fiber connector, so that a certain operation space is required to be reserved when the optical fiber connector assembly is installed, and the arranged space utilization rate is easy to be low.

Disclosure of Invention

The invention solves the problems that: how to conveniently and rapidly complete the assembly and disassembly of the optical fiber connector shell and the adapter under the condition of limited installation space.

In order to solve the above problems, the present invention provides an optical fiber connector assembly, comprising:

a fiber optic connector and a fiber optic adapter, the fiber optic connector comprising a housing member and a plug assembly;

the plug assembly is used for inserting an optical fiber;

the shell part comprises a movable shell and a core-inserting fixed pipe, and the core-inserting fixed pipe is used for connecting the plug assembly; the movable shell is movably arranged on the ferrule fixed tube;

the optical fiber adapter comprises a socket, a nut and a socket dust cap, wherein a plugging hole site for plugging the socket is formed in the shell part, and a locking assembly is arranged at the plugging hole site; when the optical fiber connector is inserted on the optical fiber adapter, the shell component triggers the locking assembly to lock the socket and the ferrule fixing tube; when the movable shell moves relative to the ferrule fixed tube, the locking assembly is triggered to unlock the socket and the ferrule fixed tube, so that the optical fiber connector is pulled out of the optical fiber adapter.

Optionally, the shell part further comprises a tail sheath, one end of the ferrule fixing tube is detachably connected with the tail sheath, and the other end of the ferrule fixing tube is slidably provided with the movable shell.

Optionally, the shell part further comprises a second spring and a snap ring, the snap ring is arranged between the movable shell and the tail sheath, the snap ring is sleeved on the ferrule fixing tube, a space for accommodating the second spring is formed between the movable shell and the ferrule fixing tube, the second spring is sleeved on the ferrule fixing tube, an annular convex part is arranged on the inner wall of the movable shell, and two ends of the second spring are respectively abutted to the snap ring and the annular convex part.

Optionally, the lock pin fixed pipe is kept away from the one end of tail sheath is equipped with symmetrical draw-in groove portion and direction fluting portion, the movable housing is kept away from the one end inner wall of tail sheath is equipped with symmetrical boss portion and elasticity and blocks the portion, be equipped with symmetrical buckle portion and card convex part on the socket, when the lock pin fixed pipe to the socket inserts and establishes, buckle portion with elasticity blocks the portion butt, so that the socket promotes the movable housing moves along the axial, at this moment the second spring is compressed until buckle portion with elasticity blocks the portion and releases the butt, so that the second spring resumes the original form and drives the movable housing resets, at this moment the card convex part with draw-in groove portion joint.

Optionally, the optical fiber adapter further comprises a nut and a socket sealing ring, wherein the nut is in threaded connection with one end of the socket, and the socket sealing ring is sleeved at the other end of the socket.

Optionally, the connector assembly further includes a socket dust cap and a connector dust cap, the socket dust cap is configured to be detachably connected to the socket, and the connector dust cap is configured to be detachably connected to the ferrule fixing tube.

Optionally, the plug assembly includes a cylindrical casing member and a ferrule, one end in the casing member is used for inserting an optical fiber, and the other end in the casing member is provided with the ferrule;

when the ferrule is not acted on, the ferrule extends out of the housing member; when the ferrule is applied with a force, the ferrule moves in a direction of retracting the housing member and in an axial direction of the housing member;

the shell part comprises a connecting shell, a sleeving shell and a mounting shell, wherein the sleeving shell is in clamping connection with the mounting shell, the connecting shell is in clamping connection with the sleeving shell, and the connecting shell is in clamping connection with the mounting shell.

Optionally, the connection shell is sleeved with a core-inserting sealing ring, and when the connection shell is inserted into the core-inserting fixing pipe, the core-inserting sealing ring is used for being abutted to the inner wall of the core-inserting fixing pipe.

Optionally, one end of the connection shell is provided with an embedding hole, the socket joint shell is provided with an embedding block, the buckling positions are in clamping connection with the buckling holes, buckling positions and buckling holes are respectively arranged at two ends of the socket joint shell, buckling holes and buckling portions are respectively arranged at two ends of the installation shell, the buckling positions on the socket joint shell are in clamping connection with the buckling holes on the installation shell, and the buckling portions on the installation shell are in clamping connection with the buckling holes on the socket joint shell.

Optionally, the plug subassembly still includes first spring and lock pin connecting piece, the lock pin connecting piece includes spacing cap and axostylus axostyle, be used for the cover to establish on the axostylus axostyle first spring, just the one end of axostylus axostyle is located two between the hasp portion, the other end of axostylus axostyle with spacing cap is connected, the both ends of first spring respectively with hasp portion spacing cap butt, it is equipped with to insert on the spacing cap ceramic lock pin.

Optionally, the plug assembly further includes a lock pin dustproof cap and a traction cap, the lock pin dustproof cap is used for being sleeved on the ceramic lock pin, the traction cap comprises a cap pipe, a cap cover and a lock catch, the cap pipe faces towards one end of the connection shell to be opened, the other end of the cap pipe is provided with an end part, an annular clamping groove is formed in the end part, the annular clamping groove is in clamping connection with the lock catch, a jack is formed in the cap cover, and the lock catch penetrates through the jack.

Compared with the prior art, the invention has the following beneficial effects:

when the optical fiber adapter is in butt joint with the optical fiber connector, the socket in the optical fiber adapter is connected with the core-inserting fixing pipe in the optical fiber connector for self-locking, and the plug-and-play is realized, so that the optical fiber connector is prevented from being easily separated from a connection state, and is safe and firm; the movable shell can axially move relative to the fixed tube of the lock pin, the socket and the fixed tube of the lock pin can be unlocked in a sliding manner, and the sliding movable shell can enable the socket and the fixed tube of the lock pin to be unlocked in a sliding manner during disassembly, so that the optical fiber connector can be pulled out of the optical fiber adapter, the disassembly is rapid, time and labor are saved, the operation space required by the whole assembly and disassembly process is small, and the installation requirement of a large density can be met.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a D-D sectional view of FIG. 1;

FIG. 3 is a schematic view of the structure of a housing part according to an embodiment of the present invention;

FIG. 4 is a schematic illustration of an embodiment of the invention with an unlocked fiber optic connector;

FIG. 5 is a schematic diagram of an embodiment of the present invention when the optical fiber connector is locked;

FIG. 6 is a schematic view of a connector assembly according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6;

FIG. 8 is a schematic view of a plug assembly according to an embodiment of the present invention;

FIG. 9 is a schematic view of an assembled plug assembly and traction cap according to an embodiment of the present invention;

FIG. 10 is a B-B cross-sectional view of FIG. 9;

FIG. 11 is a schematic view of a connector assembly according to an embodiment of the present invention;

fig. 12 is a cross-sectional view taken along the direction C-C in fig. 11.

Reference numerals illustrate:

1. a plug assembly; 11. a connection housing; 12. a sleeve joint shell; 13. a mounting shell; 131. a locking part; 14. a ferrule dust cap; 15. a core insert sealing ring; 16. a ferrule connector; 161. a limit cap; 162. a shaft lever; 17. a first spring; 18. a ceramic ferrule; 19. a traction cap; 191. a cap tube; 1911. an end portion; 192. a cap; 193. locking; 2. a connector assembly; 21. a housing member; 211. a movable housing; 2111. a boss portion; 2112. an elastic blocking portion; 212. a ferrule fixing tube; 2121. a clamping groove part; 2122. a guide slot part; 213. a tail sheath; 214. a second spring; 215. a clasp; 22. a fiber optic adapter; 221. a socket; 222. a fastening part; 223. a nut; 224. a socket sealing ring; 225. a clamping protrusion; 23. a socket dust cap; 24. a connector dust cap; 100. an optical fiber; 200. a heat shrinkage tube; 3. an optical fiber connector.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.

Moreover, in the drawings, the X-axis represents the longitudinal direction, i.e., the front-to-back position, and the positive direction of the X-axis (i.e., the arrow of the X-axis is directed) represents the front, and the negative direction of the X-axis (i.e., the direction opposite to the positive direction of the X-axis) represents the rear; the Y-axis in the drawing represents the lateral direction, i.e., the left-right position, and the positive direction of the Y-axis (i.e., the arrow of the Y-axis points) represents the left, and the negative direction of the Y-axis (i.e., the direction opposite to the positive direction of the Y-axis) represents the right; the Z-axis in the drawing represents vertical, i.e., up-down position, and the positive direction of the Z-axis (i.e., the arrow pointing in the Z-axis) represents up and down, and the negative direction of the Z-axis (i.e., the direction opposite to the positive direction of the Z-axis).

It should also be noted that the foregoing X-axis, Y-axis, and Z-axis are meant to be illustrative only and not indicative or implying that the apparatus or component in question must be oriented or configured in a particular orientation and operation and therefore should not be construed as limiting the present invention.

Referring to fig. 1-3, an embodiment of the present invention provides an optical fiber connector assembly (hereinafter referred to as an optical fiber connector assembly), which includes an optical fiber connector 3 and an optical fiber adapter 22, wherein the optical fiber connector 3 includes a housing member 21 and a plug assembly 1, and the plug assembly 1 is used for inserting an optical fiber 100; the shell part 21 comprises a movable shell 211, a core-insert fixed tube 212 and a tail sheath 213, wherein the core-insert fixed tube 212 is used for inserting the plug assembly 1, one end of the core-insert fixed tube 212 is detachably connected with the tail sheath 213, and the other end of the core-insert fixed tube 212 is provided with the movable shell 211 in a sliding manner; the optical fiber adapter 22 includes a receptacle 221, a nut 223, and a receptacle dust cap 23, the receptacle 221 being locked with the ferrule holding tube 212 when the optical fiber adapter 22 is inserted into the housing member 21; when the movable housing 211 moves axially with respect to the ferrule holding tube 212, the receptacle 221 is unlocked from the ferrule holding tube 212 to allow the fiber optic connector 3 to be withdrawn from the fiber optic adapter 22.

Specifically, the inner peripheral surface of the tail sheath 213 is formed with an internal thread, the corresponding outer peripheral surface of the ferrule fixing tube 212 is formed with an external thread, and the internal thread is in threaded connection with the external thread, so that the tail sheath 213 can be quickly screwed on the ferrule fixing tube 212, the ferrule fixing tube 212 is used for inserting the plug assembly 1, namely, after the ferrule dust cap 14 and the traction cap 19 on the plug assembly 1 are detached, the plug assembly 1 is inserted into the ferrule fixing tube 212, when the optical fiber adapter 22 is in butt joint with the optical fiber connector 3, the socket 221 in the optical fiber adapter 22 is connected with the ferrule fixing tube 212 in the shell part 21 for self locking, and the plug and play are prevented from easily separating from a connection state, so that the plug assembly is safe and firm; the movable housing 211 is arranged on the fixed core inserting tube 212 in a sliding manner, the movable housing 211 can axially move relative to the fixed core inserting tube 212, the socket 221 and the fixed core inserting tube 212 can be unlocked in a sliding manner, the movable housing 211 can enable the socket 221 and the fixed core inserting tube 212 to be unlocked in a sliding manner during disassembly, and therefore the optical fiber adapter 22 can be pulled out from the shell part 21, disassembly is rapid, time and labor are saved, the operation space required by the whole assembly and disassembly process is small, and the installation requirement of large density can be met.

Optionally, as shown in fig. 2, the housing part 21 further includes a second spring 214 and a snap ring 215, the snap ring 215 is disposed between the movable housing 211 and the tail sheath 213, the snap ring 215 is sleeved on the ferrule fixed tube 212, a space for accommodating the second spring 214 is formed between the movable housing 211 and the ferrule fixed tube 212, the second spring 214 is sleeved on the ferrule fixed tube 212, an annular protrusion is disposed on an inner wall of the movable housing 211, and two ends of the second spring 214 are respectively abutted to the snap ring 215 and the annular protrusion.

Specifically, the diameter of the movable housing 211 is larger than that of the snap ring 215, so that the movable housing 211 can axially move relative to the snap ring 215 when being stressed, an annular protrusion is integrally formed on the inner ring of the snap ring 215, an annular groove is formed in a position corresponding to the outer circumferential surface of the ferrule fixing tube 212, the annular protrusion is embedded in the annular groove to limit the axial movement of the snap ring 215 relative to the ferrule fixing tube 212, the diameter of the middle part of the movable housing 211 is larger than that of the middle part of the ferrule fixing tube 212, a space is formed between the movable housing 211 and the ferrule fixing tube 212, a second spring 214 is sleeved on the outer circumferential surface of the ferrule fixing tube 212, an annular protrusion can be integrally formed on the inner wall of the movable housing 211, one end of the second spring 214 is abutted against the snap ring 215, when the movable housing 211 is stressed, the second spring 214 is compressed, and when the movable housing 211 is stressed, the second spring 214 is restored to restore the original state and drives the movable housing 212 to reset.

Alternatively, in fig. 2 and 3, a symmetrical clamping groove portion 2121 and a guiding groove portion 2122 are provided at one end of the ferrule fixed tube 212 away from the tail sheath 213, a symmetrical boss portion 2111 and an elastic blocking portion 2112 are provided on an inner wall of one end of the movable housing 211 away from the tail sheath 213, a symmetrical fastening portion 222 and a fastening protrusion portion 225 are provided on the socket 221, when the socket 221 is inserted into the ferrule fixed tube 212, the fastening portion 222 abuts against the elastic blocking portion 2112 to enable the socket 221 to push the movable housing 211 to move along the axial direction, at this time, the second spring 214 is compressed until the fastening portion 222 is disengaged from the elastic blocking portion 2112, so that the second spring 214 is restored to drive the movable housing 211 to reset, at this time, the fastening protrusion portion 225 is fastened with the clamping groove portion 2121; in the present embodiment, the locking assembly is composed of a clamping groove portion 2121, a guiding groove portion 2122, a boss portion 2111, an elastic blocking portion 2112, a buckling portion 222 and a clamping protrusion 225; of course, it can be understood that, besides such structural design, the locking assembly can also adopt other existing locking and unlocking modes, which only needs to meet the requirement of triggering locking when the socket 221 is inserted into the ferrule fixed tube 212 and triggering unlocking when the movable housing is moved, and in the locking stage, a touch locking mode, a sensing locking mode and the like can also be adopted, and in the unlocking stage, a touch unlocking mode, a sensing unlocking mode and the like can also be adopted; the locking mode is not limited to a pure mechanical locking mode, and can be matched with an electronic locking mode and the like; alternatives based on such simple means are likewise within the scope of protection of the present application.

Specifically, as shown in fig. 3, the elastic stopper 2112 is integrally formed from the inner wall of the movable housing 211, and one end of the elastic stopper 2112 away from the inner wall of the ferrule fixed tube 212 is bent toward the center of the movable housing 211, with the object that the elastic stopper 2112 can be bent toward the inner wall of the movable housing 211 when the corresponding position of the outer peripheral surface of the ferrule fixed tube 212 is in contact with the elastic stopper 2112; the clamping groove portion 2121 and the guiding groove portion 2122 are integrally formed at one end of the ferrule fixing tube 212 away from the tail sheath 213, the clamping portion 222 and the clamping protrusion 225 are integrally formed at the outer circumferential surface of the socket 221, the clamping portion 222 is provided with two clamping protrusions and is symmetrical with respect to the center of the socket 221, and the clamping protrusion 225 is provided with two clamping protrusions and is symmetrical with respect to the center of the socket 221;

in this embodiment, referring to fig. 4 and 5, when the optical fiber adapter 22 is inserted into the housing component 21, the protruding portion 225 abuts against the elastic blocking portion 2112, and as the optical fiber adapter 22 continues to go deep, the outer peripheral surface of the ferrule fixing tube 212 contacts with the elastic blocking portion 2112, so that the elastic blocking portion 2112 bends toward the inner wall of the movable housing 211, the protruding portion 225 is disengaged from the elastic blocking portion 2112, and the protruding portion 225 moves axially along the guiding slot portion 2122, and pushes the movable housing 211 until the protruding portion 225 is snapped into the clamping slot portion 2121, at this time, the force acting on the optical fiber adapter 22 is released, the movable housing 211 returns to its original shape, the outer peripheral surface of the ferrule fixing tube 212 presses the elastic blocking portion 2112 toward the inner wall of the movable housing 211, and covers the protruding portion 2111 to the corresponding clamping slot portion 2121, thereby limiting the deformation space of the protruding portion 1, and locking is completed, and when the optical fiber connector assembly is forced by the optical fiber 100, the protruding portion 211 is required to be pulled out of the housing component 21, so that the protruding portion 2121 is pulled out from the optical fiber adapter 2111, and then the protruding portion 2111 is pulled out of the optical fiber adapter 2111.

Optionally, as shown in fig. 11 and 12, the fiber optic adapter 22 further includes a nut 223 and a socket sealing ring 224, where the nut 223 is screwed to one end of the socket 221, and the socket sealing ring 224 is sleeved on the other end of the socket 221.

Specifically, when the optical fiber adapter 22 is mounted, the socket sealing ring 224 abuts against the inner peripheral surface of the ferrule fixing tube 212, so as to prevent air from entering between the socket 221 and the ferrule fixing tube 212, so as to achieve a sealing effect, one end of the socket 221, which is far away from the socket sealing ring 224, is integrally formed with an external thread and is in threaded connection with the nut 223, and the nut 223 is used for fixing the flanged optical fiber adapter 22, and it should be noted that the optical fiber adapter 22 may be the flanged optical fiber adapter 22, and the optical fiber adapter 22 without flange may be directly clamped on a panel or a tray.

Optionally, as shown in fig. 11 and 12 in combination, the connector assembly 2 further includes a receptacle dust cap 23 and a connector dust cap 24, the receptacle dust cap 23 being configured to be detachably connected to the receptacle 221, and the connector dust cap 24 being configured to be detachably connected to the ferrule holding tube 212.

Specifically, the receptacle dust cap 23 and the connector dust cap 24 may be connected to the receptacle 221 and the ferrule fixing tube 212 by means of a snap-fit connection, a screw-thread connection, or the like, so that the dust seal effect of the optical fiber adapter 22 and the optical fiber connector can be ensured when the optical fiber connector is not in use.

Alternatively, as shown in connection with fig. 6 to 8, the plug assembly 1 includes a cylindrical housing member having one end for inserting the optical fiber 100 therein and a ferrule 18, and the other end of the housing member having the ferrule 18; when the ferrule 18 is not acted upon by the force application object, the ferrule 18 protrudes out of the housing member; when the ferrule 18 is biased by the biasing object, the ferrule 18 moves in the direction of retracting the housing member and in the axial direction of the housing member, and during this process, the ferrule 18 is kept in contact with the biasing object; the shell part comprises a connecting shell 11, a sleeving shell 12 and a mounting shell 13, wherein the sleeving shell 12 is clamped with the mounting shell 13, the connecting shell 11 is clamped with the sleeving shell 12, and the connecting shell 11 is clamped with the mounting shell 13.

Specifically, since the casing member is cylindrical, the connection housing 11, the socket housing 12 and the installation housing 13 can be machined into a semi-cylindrical shape, so that the connection housing 11, the socket housing 12 and the installation housing 13 can be assembled into a cylindrical shape through clamping, during installation, the socket housing 12 and the installation housing 13 are clamped first, then the connection housing 11 is clamped onto the socket housing 12 and the installation housing 13 to form the casing member, during disassembly, the connection housing 11 is first detached from the socket housing 12 and the installation housing 13, then the socket housing 12 is separated from the installation housing 13, one end of the connection housing 11 is closed, the optical fiber 100 can be inserted into the installation housing through the heat shrink tube 200, one end of the socket housing 12 is also closed for installing the ceramic ferrule 18, and through designing the casing member into the connection housing 11, the socket housing 12 and the installation housing 13, the three parts are clamped mutually, the disassembly and the assembly are simple and the disassembly are fast, the on-site disassembly efficiency is improved, the connection is reliable, and the working stability and the use safety are ensured.

In this embodiment, the plug assembly 1 may be connected to an external connector, for example, the external connector may be an optical fiber adapter 22, an alignment sleeve is provided in the optical fiber adapter 22, and an optical fiber 100 is inserted into the alignment sleeve, when the optical fiber adapter 22 is inserted toward the plug assembly 1, the optical fiber adapter 22 can retract toward the interior of the shell member after contacting the ferrule 18, and in the retracting process, the optical fiber 100 inserted into the alignment sleeve of the optical fiber adapter 22 is kept in contact with the ferrule 18 at any time, so as to ensure smooth connection, in this process, the impact force at the moment when the ferrule 18 contacts with the optical fiber 100 in the alignment sleeve can be buffered, the probability of damage when the ferrule 18 contacts with the optical fiber 100 due to excessive force is reduced, and the whole inserting process is safe and reliable, so that the stability in the subsequent working is ensured.

Optionally, as shown in fig. 6, the connection housing 11 is sleeved with a ferrule sealing ring 15, and when the connection housing 11 is inserted into the ferrule fixing tube 212, the ferrule sealing ring 15 is used for abutting against the inner wall of the ferrule fixing tube 212.

Specifically, the annular sealing groove is formed in the outer circumferential surface of one end, far away from the sleeve joint shell 12 and the mounting shell 13, of the connecting shell 11, then the ferrule sealing ring 15 is embedded in the annular sealing groove, when the connecting shell 11 is installed in the ferrule fixing tube 212 in a penetrating mode, the ferrule sealing ring 15 can be abutted against the inner wall of the ferrule fixing tube 212, and therefore the situation that external air enters into the region where the ceramic ferrule 18 is located between the ferrule fixing tube 212 and the connecting shell 11 can be avoided, sealing effect is achieved, a plurality of ferrule sealing rings 15 can be arranged, corresponding annular sealing grooves are formed in corresponding positions of the connecting shell 11, and sealing effect is further improved.

In this embodiment, the connection shell 11 and the position of the sleeve connection shell 12 connected with the connection shell 11 are integrally filled with glue with the optical cable 100 with the skin, so that the connection is firm and reliable, and the tensile resistance is greatly improved.

Alternatively, as shown in fig. 8, one end of the connection shell 11 is provided with an embedding hole, the sleeve shell 12 is provided with an embedding block, the buckling positions are in clamping connection with the buckling holes, two ends of the sleeve shell 12 are respectively provided with buckling positions and buckling holes, two ends of the installation shell 13 are respectively provided with buckling holes and buckling parts 131, the buckling positions on the sleeve shell 12 are in clamping connection with the buckling holes on the installation shell 13, and the buckling parts 131 on the installation shell 13 are in clamping connection with the buckling holes on the sleeve shell 12.

Specifically, the embedded block may be formed by protruding the outer peripheral surface of the sleeve shell 12, the embedded hole may be integrally formed on the connecting shell 11, and the embedded hole is matched with the embedded block, so that the connecting shell 11 and the sleeve shell 12 are clamped, the connection shell 11 and the sleeve shell 12 can be limited to move, the clamping position on the sleeve shell 12 may be two symmetrical clamping blocks integrally formed at one end of the sleeve shell 12, the clamping hole on the sleeve shell 12 may be two symmetrical clamping blocks integrally formed at the other end of the sleeve shell 12, the locking part 131 on the mounting shell 13 may also be two symmetrical clamping blocks integrally formed, the clamping hole on the mounting shell 13 may also be integrally formed, when the mounting shell 13 and the sleeve shell 12 are clamped, the locking part 131 on the mounting shell 13 and the sleeve shell 12 can be elastically deformed due to the plastic material, the locking part 131 on the mounting shell 13 and the clamping hole on the sleeve shell 12 can be clamped with the clamping hole on the sleeve shell 12, the clamping hole on the mounting shell 13 can be clamped with the clamping position on the sleeve shell 12, the mounting shell 13 is clamped with the clamping part of the clamping part, and the mounting shell 13 is far away from the connecting part 11 and the connecting shell 11, and the connecting part is directly formed by stretching the connecting shell 13, and the connecting shell 13 is directly stretched out, and the connecting shell is formed with the connecting shell 11, and the connecting shell is directly stretched out of the connecting shell 11.

Optionally, as shown in fig. 7, the plug assembly 1 further includes a first spring 17 and a ferrule connector 16, where the ferrule connector 16 includes a limiting cap 161 and a shaft 162, the shaft 162 is used for sleeving the first spring 17, one end of the shaft 162 is located between the two locking portions 131, the other end of the shaft 162 is connected with the limiting cap 161, two ends of the first spring 17 are respectively abutted with the locking portions 131 and the limiting cap 161, and the limiting cap 161 is inserted with the ceramic ferrule 18.

Specifically, since the ferrule connecting piece 16 is made of plastic, the shaft rod 162 and the limiting cap 161 may be integrally injection molded, the diameter of the limiting cap 161 is larger than that of the shaft rod 162, and the diameter of the limiting cap 161 is larger than that of the first spring 17, so that the limiting cap 161 can abut against one end of the first spring 17, the distance between the two locking portions 131 is smaller than that of the first spring 17, the other end of the first spring 17 can abut against the two locking portions 131, a ferrule jack is formed in the surface of the limiting cap 161, facing away from the shaft rod 162, of the ferrule plug jack, and the ferrule jack is used for plugging the ceramic ferrule 18.

Optionally, as shown in fig. 9 and 10 in combination, the plug assembly 1 further includes a ferrule dust cap 14 and a traction cap 19, where the ferrule dust cap 14 is used to be sleeved on the ferrule 18, the traction cap 19 includes a cap tube 191, a cap 192 and a lock catch 193, one end of the cap tube 191 facing the connection shell 11 is open, the other end of the cap tube 191 is provided with an end 1911, the end 1911 is provided with an annular clamping groove, the annular clamping groove is clamped with the lock catch 193, the cap 192 is provided with an insertion hole, and the lock catch 193 is arranged through the insertion hole.

Specifically, the ferrule dust cap 14 can prevent the ceramic ferrule 18 from being stained with dust, the external connector can be a traction cap 19, the traction cap 19 comprises a cap tube 191, the inner circumferential surface of the cap tube 191 can be molded and threaded, corresponding external half threads are molded and processed on the outer circumferential surfaces of the sleeve shell 12 and the installation shell 13, and after the sleeve shell 12 is clamped with the installation shell 13, the sleeve shell 12 and the external half threads on the installation shell 13 can form full threads which are in threaded connection with the threads on the cap tube 191, so that quick assembly and disassembly are realized, the tensile strength can be improved in a threaded connection mode, one end of the cap tube 191, which is far away from an opening, is narrowed into an end 1911, a circle of annular clamping grooves are formed in the circumferential surface of the end 1911, two through jacks are formed in the circumferential surface of the cap tube 192, and the lock catch 193 in a U shape is inserted into the annular clamping grooves in the circumferential surface of the end 1911 from the two jacks, so that the cap tube 192 can rotate relative to the cap tube 191 and cannot move axially relative to the tube 191, and thus the optical fiber 100 cannot be damaged due to the knob 100 when passing through the traction hole.

Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the invention.

Claims

1. An optical fiber connector assembly, comprising:

-a fiber optic connector (3) and a fiber optic adapter (22), the fiber optic connector (3) comprising a housing member (21) and a plug assembly (1);

the plug assembly (1) is used for inserting an optical fiber (100);

the shell part (21) comprises a movable shell (211) and a core-insert fixed tube (212), wherein the core-insert fixed tube (212) is used for connecting the plug assembly (1); the movable shell (211) is movably arranged on the core inserting fixed tube (212);

the optical fiber adapter (22) comprises a socket (221), a nut (223) and a socket dust cap (23), wherein a plugging hole site for plugging the socket (221) is formed in the shell part, and a locking assembly is arranged at the plugging hole site; when the optical fiber connector (3) is plugged on the optical fiber adapter (22), the shell component (21) triggers the locking assembly to lock the socket (221) and the ferrule fixing tube (212); when the movable housing (211) moves relative to the ferrule fixing tube (212), the locking assembly is triggered to unlock the socket (221) and the ferrule fixing tube (212) so as to enable the optical fiber connector (3) to be pulled out of the optical fiber adapter (22).

2. The fiber optic connector assembly of claim 1, wherein the housing member (21) further comprises a tail jacket (213), one end of the ferrule holding tube (212) is detachably connected to the tail jacket (213), and the other end of the ferrule holding tube (212) is slidably provided with the movable housing (211).

3. The optical fiber connector assembly according to claim 2, wherein the housing component (21) further comprises a second spring (214) and a snap ring (215), the snap ring (215) is arranged between the movable housing (211) and the tail sheath (213), the snap ring (215) is sleeved on the ferrule fixing tube (212), a space for accommodating the second spring (214) is formed between the movable housing (211) and the ferrule fixing tube (212), the second spring (214) is sleeved on the ferrule fixing tube (212), an annular convex part is arranged on the inner wall of the movable housing (211), and two ends of the second spring (214) are respectively abutted on the snap ring (215) and the annular convex part.

4. A fiber optic connector assembly according to claim 3, wherein the ferrule holding tube (212) has a symmetrical clamping groove portion (2121) and a guiding groove portion (2122) at an end far from the tail sheath (213), a symmetrical boss portion (2111) and an elastic blocking portion (2112) are provided at an inner wall of an end far from the tail sheath (213) of the movable housing (211), a symmetrical fastening portion (222) and a fastening protrusion portion (225) are provided on the socket (221), and when the ferrule holding tube (212) is inserted into the socket (221), the fastening portion (222) abuts against the elastic blocking portion (2112) so that the socket (221) pushes the movable housing (211) to move axially, and at this time, the second spring (214) is compressed until the fastening portion (222) and the elastic blocking portion (2112) are released from abutting, so that the second spring (214) returns to drive the movable housing (211) to reset, and the fastening protrusion portion (225) is engaged with the clamping groove portion (2121).

5. The fiber optic connector assembly of claim 1, wherein the fiber optic adapter (22) further comprises a nut (223) and a receptacle seal ring (224), the nut (223) being threadably coupled to one end of the receptacle (221), the receptacle seal ring (224) being sleeved on the other end of the receptacle (221); the connector assembly (2) further comprises a socket dust cap (23) and a connector dust cap (24), wherein the socket dust cap (23) is used for being detachably connected with the socket (221), and the connector dust cap (24) is used for being detachably connected with the ferrule fixing tube (212).

6. The fiber optic connector assembly of claim 1, wherein the plug assembly (1) comprises a cylindrical housing member with one end within the housing member for inserting the optical fiber (100) and a ferrule (18), the other end within the housing member being provided with the ferrule (18);

when the ferrule (18) is not acted on, the ferrule (18) extends out of the housing part; when the ferrule (18) is applied with a force, the ferrule (18) moves in a direction of retracting the housing member and in an axial direction of the housing member;

the shell part comprises a connecting shell (11), a sleeving shell (12) and a mounting shell (13), wherein the sleeving shell (12) is clamped with the mounting shell (13), the connecting shell (11) is clamped with the sleeving shell (12), and the connecting shell (11) is clamped with the mounting shell (13).

7. The optical fiber connector assembly according to claim 6, wherein the connection housing (11) is sleeved with a ferrule sealing ring (15), and the ferrule sealing ring (15) is used for abutting against the inner wall of the ferrule fixing tube (212) when the connection housing (11) is inserted into the ferrule fixing tube (212).

8. The optical fiber connector assembly according to claim 7, wherein one end of the connection shell (11) is provided with an embedding hole, the sleeve shell (12) is provided with an embedding block, the buckling position is in clamping connection with the buckling hole, two ends of the sleeve shell (12) are respectively provided with a buckling position and a buckling hole, two ends of the installation shell (13) are respectively provided with a buckling hole and a buckling part (131), the buckling position on the sleeve shell (12) is in clamping connection with the buckling hole on the installation shell (13), and the buckling part (131) on the installation shell (13) is in clamping connection with the buckling hole on the sleeve shell (12).

9. The optical fiber connector assembly according to claim 8, wherein the plug assembly (1) further comprises a first spring (17) and a ferrule connecting piece (16), the ferrule connecting piece (16) comprises a limiting cap (161) and a shaft lever (162), the shaft lever (162) is used for sleeving the first spring (17), one end of the shaft lever (162) is located between the two locking portions (131), the other end of the shaft lever (162) is connected with the limiting cap (161), two ends of the first spring (17) are respectively abutted with the locking portions (131) and the limiting cap (161), and the ceramic ferrule (18) is inserted on the limiting cap (161).

10. The optical fiber connector assembly according to claim 6, wherein the plug assembly (1) further comprises a ferrule dust cap (14) and a traction cap (19), the ferrule dust cap (14) is used for being sleeved on the ferrule (18), the traction cap (19) comprises a cap tube (191), a cap (192) and a lock catch (193), one end of the cap tube (191) facing the connection shell (11) is open, an end (1911) is arranged at the other end of the cap tube (191), an annular clamping groove is formed in the end (1911), the annular clamping groove is clamped with the lock catch (193), a jack is formed in the cap (192), and the lock catch (193) is arranged in the jack in a penetrating mode.