Optical fiber connector assembly

Abstract

The present invention provides an optical fiber connector assembly. The optical fiber connector assembly comprises an optical fiber adapter and an optical fiber connector. The optical fiber adapter comprises a socket, a nut and a socket dustproof cap. The optical fiber connector comprises a housing part and a plug assembly, the plug assembly being used for plugging in an optical fiber; and the housing part comprises a movable casing, a ferrule fixing tube and a tail sheath, the ferrule fixing tube being used for fixing the plug assembly, one end of the ferrule fixing tube being detachably connected to the tail sheath, and the movable casing being slidably arranged at the other end of the ferrule fixing tube. During installation, the plug assembly is directly plugged onto the optical fiber adapter to achieve connection and self-locking, thus achieving plug-and-play effect, avoiding easy disengagement from a connected state, and achieving security and firmness; during disassembly, the slidable movable casing of the plug assembly slides backwards, such that the plug assembly can be pulled out from the optical fiber adapter, thereby achieving slide-to-unlock, making disassembly rapid, and saving time and labor; and the whole assembly and disassembly process requires a small operation space, thus satisfying the requirement of high-density installation.

Description

Optical fiber connector assembly Technical Field

[0001] The present invention relates to the technical field of optical fiber connection, and in particular to an optical fiber connector assembly. Background Art

[0002] The vast majority of fiber optic connectors and adapters currently in use are industry-standard connectors and adapters. These connectors and adapters were originally designed to solve fiber optic connections indoors or within protective boxes (enclosures). When activating services, the box must be opened to perform splicing and cable fixing operations.

[0003] Most of the current fiber optic connector housings are fixed to the adapter by means of screw-type locking or snap-on fasteners. Due to its own characteristics, the screw-type locking method requires finger operation space to be reserved around the fiber optic connector housing and the adapter. Under limited installation space conditions, especially when the density requirements are high, operation is very difficult; the snap-on method usually requires a drive arm to be set on the fiber optic connector housing to unlock the snap. After the fiber optic connector housing is connected to the adapter, if you want to remove it, you need to press the drive arm from above to unlock it. Therefore, a certain amount of operation space needs to be reserved during installation of the fiber optic connector assembly, which easily leads to low space utilization. Technical issues

[0004] The problem solved by the present invention is how to quickly and conveniently complete the assembly and disassembly of an optical fiber connector housing and an adapter under limited installation space conditions. Technical Solutions

[0005] To solve the above problems, the present invention provides an optical fiber connector assembly, comprising:

[0006] Fiber optic connector and fiber optic adapter, the fiber optic connector includes a housing component and a plug assembly;

[0007] The plug assembly is used to insert an optical fiber;

[0008] The housing component includes a movable shell and a core fixing tube, wherein the core fixing tube is used to connect the plug assembly; the movable shell is movably arranged on the core fixing tube;

[0009] The optical fiber adapter includes a socket, a nut and a socket dust cap. The shell component is provided with a plugging hole for the socket to be plugged in, and a locking assembly is provided at the plugging hole. When the optical fiber connector is plugged into 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 fixing tube, the locking assembly is triggered to unlock the socket and the ferrule fixing tube, so that the optical fiber connector can be pulled out of the optical fiber adapter.

[0010] Optionally, the shell component further includes a tail sleeve, one end of the ferrule fixing tube is detachably connected to the tail sleeve, and the other end of the ferrule fixing tube is slidably provided with the movable shell.

[0011] Optionally, the shell component also includes a second spring and a retaining ring, the retaining ring is arranged between the movable shell and the tail sleeve, and the retaining ring is sleeved on the core fixing tube, a space for accommodating the second spring is formed between the movable shell and the core fixing tube, the second spring is sleeved on the core fixing tube, and an annular protrusion is provided on the inner wall of the movable shell, and the two ends of the second spring respectively abut against the retaining ring and the annular protrusion.

[0012] Optionally, a symmetrical card slot portion and a guide slot portion are provided at one end of the insert fixing tube away from the tail sleeve, a symmetrical boss portion and an elastic blocking portion are provided on the inner wall of one end of the movable shell away from the tail sleeve, and a symmetrical buckle portion and a convex portion are provided on the socket. When the insert fixing tube is inserted into the socket, the buckle portion abuts against the elastic blocking portion, so that the socket pushes the movable shell to move axially. At this time, the second spring is compressed until the buckle portion and the elastic blocking portion are released from abutment, so that the second spring returns to its original state and drives the movable shell to reset. At this time, the convex portion is engaged with the card slot portion.

[0013] Optionally, the optical fiber adapter further includes a nut and a socket sealing ring, wherein the nut is threadedly connected to one end of the socket, and the other end of the socket is sleeved with a socket sealing ring.

[0014] Optionally, the connector assembly further includes a socket dust cap and a connector dust cap, wherein the socket dust cap is used for detachably connecting to the socket, and the connector dust cap is used for detachably connecting to the ferrule fixing tube.

[0015] Optionally, the plug assembly includes a cylindrical shell component and a ceramic ferrule, one end of the shell component is used to insert the optical fiber, and the other end of the shell component is provided with the ceramic ferrule;

[0016] When no force is applied to the ceramic ferrule, the ceramic ferrule extends out of the housing component; when a force is applied to the ceramic ferrule, the ceramic ferrule moves in a direction of retracting into the housing component and along the axial direction of the housing component;

[0017] The housing component includes a connecting shell, a sleeve shell and a mounting shell. The sleeve shell is clamped with the mounting shell, the connecting shell is clamped with the sleeve shell, and the connecting shell is clamped with the mounting shell.

[0018] Optionally, a core insert sealing ring is sleeved on the connection shell, and when the connection shell is inserted into the core insert fixing tube, the core insert sealing ring is used to abut against the inner wall of the core insert fixing tube.

[0019] Optionally, one end of the connecting shell is provided with an embedding hole, the sleeve shell is provided with an embedding block, the buckle position is snap-fitted with the buckle hole, the two ends of the sleeve shell are respectively provided with a buckle position and a buckle hole, the two ends of the mounting shell are respectively provided with a buckle hole and a locking portion, the buckle position on the sleeve shell is snap-fitted with the button hole on the mounting shell, and the locking portion on the mounting shell is snap-fitted with the button hole on the sleeve shell.

[0020] Optionally, the plug assembly also includes a first spring and a ferrule connector, the ferrule connector includes a limiting cap and a shaft rod, the shaft rod is used to sleeve the first spring, and one end of the shaft rod is located between the two locking parts, and the other end of the shaft rod is connected to the limiting cap, the two ends of the first spring are respectively abutted against the locking part and the limiting cap, and the ceramic ferrule is inserted into the limiting cap.

[0021] Optionally, the plug assembly further includes a ferrule dust cap and a traction cap, the ferrule dust cap is used to be sleeved on the ceramic ferrule, the traction cap includes a cap tube, a cap cover and a lock buckle, one end of the cap tube is open toward the connecting shell, the other end of the cap tube is provided with an end portion, the end portion is provided with an annular groove, the annular groove is engaged with the lock buckle, the cap cover is provided with a socket, and the lock buckle is passed through the socket. Beneficial effects

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] When the fiber optic adapter is docked with the fiber optic connector, the socket in the fiber optic adapter will be connected to the ferrule fixing tube in the fiber optic connector and self-locked, which is plug and play, preventing it from being easily disconnected, and is safe and reliable; a movable shell is slidably provided on the ferrule fixing tube, and the movable shell can move axially relative to the ferrule fixing tube, so that the socket and the ferrule fixing tube can be slid and unlocked. When disassembling, sliding the movable shell can make the socket and the ferrule fixing tube slid and unlocked, so that the fiber optic connector can be pulled out of the fiber optic adapter. Disassembly is quick, time-saving and labor-saving, and the entire assembly and disassembly process requires little operating space, which can meet the needs of high-density installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic structural diagram of an embodiment of the present invention;

[0025] FIG2 is a sectional view taken along the line DD in FIG1 ;

[0026] FIG3 is a schematic structural diagram of a housing component according to an embodiment of the present invention;

[0027] FIG4 is a schematic structural diagram of an optical fiber connector according to an embodiment of the present invention when it is unlocked;

[0028] FIG5 is a schematic structural diagram of an optical fiber connector when locked according to an embodiment of the present invention;

[0029] FIG6 is a schematic structural diagram of a connector assembly according to an embodiment of the present invention;

[0030] FIG7 is a cross-sectional view taken along line AA in FIG6 ;

[0031] FIG8 is a schematic structural diagram of a plug assembly according to an embodiment of the present invention;

[0032] FIG9 is a schematic structural diagram of the assembled plug assembly and the traction cap according to an embodiment of the present invention;

[0033] FIG10 is a cross-sectional view taken along line BB in FIG9 ;

[0034] FIG11 is a schematic structural diagram of a connector assembly according to an embodiment of the present invention;

[0035] FIG12 is a cross-sectional view taken along the CC line in FIG11 .

[0036] Description of reference numerals:

[0037] Plug assembly; 11. Connecting shell; 12. Socket shell; 13. Mounting shell; 131. Locking part; 14. Ferrule dust cap; 15. Ferrule sealing ring; 16. Ferrule connector; 161. Limiting cap; 162. Shaft; 17. First spring; 18. Ceramic ferrule; 19. Pulling cap; 191. Cap tube; 1911. End; 192. Cap; 193. Locking part; 2. Connector assembly; 21. Housing component; 211. Movable housing; 2111. Boss portion; 2112, elastic blocking portion; 212, ferrule fixing tube; 2121, slot portion; 2122, guide slot portion; 213, tail sheath; 214, second spring; 215, snap ring; 22, fiber optic adapter; 221, socket; 222, buckle portion; 223, nut; 224, socket sealing ring; 225, snap convex; 23, socket dust cap; 24, connector dust cap; 100, optical fiber; 200, heat shrink tubing; 3, fiber optic connector. Modes for Carrying Out the Invention

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be practiced in an order other than that illustrated or described herein.

[0040] Moreover, the X-axis in the accompanying drawings represents the longitudinal direction, that is, the front-to-back position, and the positive direction of the X-axis (that is, the direction of the arrow of the X-axis) represents the front, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents the back; the Y-axis in the accompanying drawings represents the transverse direction, that is, the left-right position, and the positive direction of the Y-axis (that is, the direction of the arrow of the Y-axis) represents the left, and the negative direction of the Y-axis (that is, the direction opposite to the positive direction of the Y-axis) represents the right; the Z-axis in the accompanying drawings represents the vertical direction, that is, the up-down position, and the positive direction of the Z-axis (that is, the direction of the arrow of the Z-axis) represents the top, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents the bottom.

[0041] It should also be noted that the aforementioned X-axis, Y-axis, and Z-axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0042] 1 to 3 , an embodiment of the present invention provides an optical fiber connector assembly (hereinafter referred to as the optical fiber connector assembly) including an optical fiber connector 3 and an optical fiber adapter 22. The optical fiber connector 3 includes a shell component 21 and a plug assembly 1. The plug assembly 1 is used to insert an optical fiber 100. The shell component 21 includes a movable shell 211, a ferrule fixing tube 212 and a tail sleeve 213. The ferrule fixing tube 212 is used for inserting the plug assembly 1, and one end of the ferrule fixing tube 212 is detachably connected to the tail sleeve 213, and the other end of the ferrule fixing tube 212 is slidably provided with a movable shell 211. The optical fiber adapter 22 includes a socket 221, a nut 223 and a socket dust cap 23. When the optical fiber adapter 22 is inserted into the shell component 21, the socket 221 is locked with the ferrule fixing tube 212. When the movable shell 211 moves axially relative to the ferrule fixing tube 212, the socket 221 and the ferrule fixing tube 212 are unlocked, so that the optical fiber connector 3 can be pulled out of the optical fiber adapter 22.

[0043] Specifically, the inner circumference of the tail sheath 213 is formed with an internal thread, and the corresponding outer circumference of the core fixing tube 212 is formed with an external thread. The internal thread and the external thread are threadedly connected, so that the tail sheath 213 can be quickly screwed onto the core fixing tube 212. The core fixing tube 212 is used for inserting the plug assembly 1. That is, after removing the core dust cap 14 and the traction cap 19 on the plug assembly 1, the plug assembly 1 is inserted into the core fixing tube 212. When the optical fiber adapter 22 is docked with the optical fiber connector 3, the socket 221 in the optical fiber adapter 22 will be connected to the core fixing tube in the shell part 21. The 212 connection is self-locking and plug-and-play, which prevents it from being easily disconnected and is safe and reliable. A movable shell 211 is slidingly provided on the core fixing tube 212. The movable shell 211 can move axially relative to the core fixing tube 212, and the socket 221 and the core fixing tube 212 can be slid and unlocked. When disassembling, sliding the movable shell 211 can make the socket 221 and the core fixing tube 212 slid and unlocked, so that the optical fiber adapter 22 can be pulled out of the shell part 21. The disassembly is quick, time-saving and labor-saving, and the operating space required for the entire assembly and disassembly process is small, which can meet the requirements of high-density installation.

[0044] Optionally, in combination with Figure 2, the shell component 21 also includes a second spring 214 and a retaining ring 215. The retaining ring 215 is arranged between the movable shell 211 and the tail sleeve 213, and the retaining ring 215 is sleeved on the core fixing tube 212. A space for accommodating the second spring 214 is formed between the movable shell 211 and the core fixing tube 212. The second spring 214 is sleeved on the core fixing tube 212. The inner wall of the movable shell 211 is provided with an annular protrusion, and the two ends of the second spring 214 respectively abut against the retaining ring 215 and the annular protrusion.

[0045] Specifically, the diameter of the movable housing 211 is larger than the diameter of the clamping ring 215, so that the movable housing 211 can move axially relative to the clamping ring 215 when a force is applied, and an annular protrusion is integrally formed on the inner ring of the clamping ring 215, and an annular groove is provided at a corresponding position on the outer circumference of the ferrule fixing tube 212. The annular protrusion is embedded in the annular groove to limit the axial movement of the clamping ring 215 relative to the ferrule fixing tube 212. The diameter of the middle part of the movable housing 211 is larger than the diameter of the middle part of the ferrule fixing tube 212. Thus, a space is formed between the movable shell 211 and the core fixing tube 212, so that the second spring 214 is sleeved on the outer peripheral surface of the core fixing tube 212. The inner wall of the movable shell 211 can be integrally formed with an annular convex portion, which is used to abut one end of the second spring 214, and the other end of the second spring 214 abuts against the retaining ring 215. When the movable shell 211 is moved by force, the second spring 214 is compressed. When the contact is subjected to force, the second spring 214 returns to its original state and drives the movable shell 211 to reset.

[0046] 2 and 3, the end of the core fixing tube 212 away from the tail sleeve 213 is provided with a symmetrical card slot portion 2121 and a guide slot portion 2122, the inner wall of the end of the movable shell 211 away from the tail sleeve 213 is provided with a symmetrical boss portion 2111 and an elastic blocking portion 2112, and the socket 221 is provided with a symmetrical buckle portion 222 and a card convex portion 225. When the socket 221 is inserted into the core fixing tube 212, the buckle portion 222 abuts against the elastic blocking portion 2112, so that the socket 221 pushes the movable shell 211 to move axially. At this time, the second spring 214 is compressed until the buckle portion 222 and the elastic blocking portion 2112 are released from the abutment, so that the second spring 214 returns to its original state and drives the movable shell 211 to reset. At this time, the card convex portion 225 is engaged with the card slot portion 2121. In this embodiment In the embodiment, the locking assembly is composed of a card slot portion 2121, a guide slot portion 2122, a boss portion 2111, an elastic blocking portion 2112, a snap portion 222 and a card protrusion 225; of course, it is understandable that in addition to this structural design, the locking assembly can also adopt other existing locking and unlocking forms, and it only needs to satisfy that the locking is triggered when the socket 221 is inserted into the core fixing tube 212, and the unlocking is triggered when the movable shell is moved. In the locking stage, a touch-pressure locking method, an induction locking method, etc. can also be adopted. In the unlocking stage, a touch-pressure unlocking method, an induction unlocking method, etc. can also be adopted; the locking form is not limited to a purely mechanical locking method, and can also be combined with electronic locking and other forms; the solution obtained based on the replacement of this simple means also falls within the protection scope of this application.

[0047] Specifically, referring to FIG3 , the elastic blocking portion 2112 is integrally formed from the inner wall of the movable housing 211 , and the end of the elastic blocking portion 2112 away from the inner wall of the ferrule fixing tube 212 is bent toward the center of the movable housing 211 , so that when the corresponding position of the outer circumference of the ferrule fixing tube 212 contacts the elastic blocking portion 2112 , the elastic blocking portion 2112 can be bent toward the inner wall of the movable housing 211 ; the locking groove portion 2121 and the guide slot portion 2122 are integrally formed on the end of the ferrule fixing tube 212 away from the tail sheath 213 , the buckle portion 222 and the locking protrusion 225 are integrally formed on the outer circumference of the socket 221 , and the buckle portions 222 are provided with two and are symmetrical about the center of the socket 221 , and the locking protrusions 225 are provided with two and are symmetrical about the center of the socket 221 ;

[0048] In this embodiment, referring to Figures 4 and 5, when the force-applying optical fiber adapter 22 is inserted into the housing component 21, the locking protrusion 225 conflicts with the elastic blocking portion 2112. As the optical fiber adapter 22 continues to penetrate deeper, the outer peripheral surface of the ferrule fixing tube 212 contacts the elastic blocking portion 2112, causing the elastic blocking portion 2112 to bend toward the inner wall of the movable housing 211, so that the locking protrusion 225 is no longer in conflict with the elastic blocking portion 2112, and the locking protrusion 225 continues to move axially along the guide slot 2122 and pushes the movable housing 211 to move until the locking protrusion 225 is engaged in the slot 2121. At this time, the action on the optical fiber adapter 22 is released. The force on the fiber adapter 22 is applied, the movable shell 211 returns to its original shape, and the outer peripheral surface of the core fixing tube 212 squeezes the elastic blocking portion 2112 toward the inner wall of the movable shell 211, and makes the boss portion 2111 cover the corresponding slot portion 2121, thereby limiting the deformation space of the boss portion 2111 and completing the locking. The optical fiber 100 is subjected to force and the optical fiber connector assembly will not fall out when the force is applied. When the optical fiber adapter 22 needs to be pulled out of the shell component 21, the movable shell 211 is moved to make the boss portion 2111 away from the slot portion 2121, thereby avoiding the deformation space of the boss portion 2111, and then the optical fiber adapter 22 is pulled out.

[0049] Optionally, as shown in FIG11 and FIG12 , the optical fiber adapter 22 further includes a nut 223 and a socket sealing ring 224 , the nut 223 is threadedly connected to one end of the socket 221 , and the other end of the socket 221 is sleeved with a socket sealing ring 224 .

[0050] Specifically, when the optical fiber adapter 22 is installed, the socket sealing ring 224 contacts the inner circumference of the core fixing tube 212 to prevent air from entering between the socket 221 and the core fixing tube 212, thereby achieving a sealing effect. The end of the socket 221 away from the socket sealing ring 224 is integrally formed with an external thread and is threadedly connected to the nut 223. The nut 223 is used to fix the optical fiber adapter 22 with a flange. It should be noted that the optical fiber adapter 22 can be an optical fiber adapter 22 with a flange, and the optical fiber adapter 22 without a flange can be directly stuck on a panel or tray, etc.

[0051] Optionally, in combination with Figures 11 and 12, the connector assembly 2 also includes a socket dust cap 23 and a connector dust cap 24, the socket dust cap 23 is used to be detachably connected to the socket 221, and the connector dust cap 24 is used to be detachably connected to the core fixing tube 212.

[0052] Specifically, the socket dust cap 23 and the connector dust cap 24 can be connected to the socket 221 and the core fixing tube 212 by means of snap connection, threaded connection, etc., which can ensure the dustproof sealing effect of the optical fiber adapter 22 and the optical fiber connector when not in use.

[0053] Optionally, in combination with Figures 6 to 8, the plug assembly 1 includes a cylindrical shell component and a ceramic ferrule 18, one end of the shell component is used to insert the optical fiber 100, and the other end of the shell component is provided with a ceramic ferrule 18; when the ceramic ferrule 18 is not subjected to a force-applying object, the ceramic ferrule 18 extends out of the shell component; when the ceramic ferrule 18 is subjected to a force-applying object, the ceramic ferrule 18 moves in the direction of retracting the shell component and along the axial direction of the shell component, and during this process, the ceramic ferrule 18 maintains contact with the force-applying object; the shell component includes a connecting shell 11, a socket shell 12 and a mounting shell 13, the socket shell 12 and the mounting shell 13 are snap-fitted, the connecting shell 11 and the socket shell 12 are snap-fitted, and the connecting shell 11 and the mounting shell 13 are snap-fitted.

[0054] Specifically, since the housing component is cylindrical, the connecting shell 11, the sleeve shell 12 and the mounting shell 13 can be processed into a semi-cylindrical shape, so that the connecting shell 11, the sleeve shell 12 and the mounting shell 13 can be assembled into a cylindrical shape by snapping. When installing, first snap the sleeve shell 12 and the mounting shell 13, and then snap the connecting shell 11 onto the sleeve shell 12 and the mounting shell 13 to form the housing component. When disassembling, the connecting shell 11 is also first removed from the sleeve shell 12 and the mounting shell 13. , and then separate the sleeve shell 12 from the installation shell 13, and one end of the connecting shell 11 is closed, and the optical fiber 100 can be inserted into it through the heat shrink tube 200. One end of the sleeve shell 12 is also closed and is used to install the ceramic ferrule 18. By designing the sleeve shell components into three parts: the connecting shell 11, the sleeve shell 12 and the installation shell 13, the three parts are mutually snap-connected, and the disassembly and assembly are simple and quick, thereby improving the efficiency of on-site disassembly and assembly, and ensuring reliable connection, working stability and safety in use.

[0055] In this embodiment, the plug assembly 1 can be connected to an external component, for example, the external component can be a fiber optic adapter 22. The fiber optic adapter 22 has an alignment sleeve therein, and the alignment sleeve is used to insert the optical fiber 100. When the fiber optic adapter 22 is inserted into the plug assembly 1, after the fiber optic adapter 22 contacts the ceramic ferrule 18, the ceramic ferrule 18 can retract toward the inside of the housing component. During the retraction process, the optical fiber 100 inserted in the alignment sleeve of the fiber optic adapter 22 maintains contact with the ceramic ferrule 18 at all times to ensure a smooth connection. During this process, the impact force at the moment of contact between the ceramic ferrule 18 and the optical fiber 100 in the alignment sleeve can be buffered, reducing the probability of damage to the ceramic ferrule 18 and the optical fiber 100 due to excessive force when in contact. The entire insertion process is safe and reliable, ensuring stability during subsequent work.

[0056] Optionally, as shown in FIG6 , the connecting shell 11 is provided with an insert sealing ring 15 . When the connecting shell 11 is inserted into the insert fixing tube 212 , the insert sealing ring 15 is used to abut against the inner wall of the insert fixing tube 212 .

[0057] Specifically, an annular sealing groove is provided on the outer peripheral surface of one end of the connecting shell 11 away from the sleeve shell 12 and the installation shell 13, and then the core sealing ring 15 is embedded in the annular sealing groove. When the connecting shell 11 is inserted into the core fixing tube 212, the core sealing ring 15 can just be in contact with the inner wall of the core fixing tube 212, thereby preventing external air from entering the area where the ceramic core 18 is located from between the core fixing tube 212 and the connecting shell 11, thereby achieving a sealing effect. In addition, a plurality of core sealing rings 15 can be provided, and corresponding annular sealing grooves are opened at corresponding positions of the connecting shell 11 to further improve the sealing effect.

[0058] In this embodiment, the connection shell 11 and the socket shell 12 where the connection shell 11 is connected are integrally filled with glue with the sheathed optical cable 100, which is firm and reliable and greatly improves the tensile strength.

[0059] Optionally, in combination with Figure 8, one end of the connecting shell 11 is provided with an embedding hole, the sleeve shell 12 is provided with an embedding block, the buckle position is snap-fitted with the button hole, the two ends of the sleeve shell 12 are respectively provided with a buckle position and a button hole, the two ends of the mounting shell 13 are respectively provided with a button hole and a locking portion 131, the buckle position on the sleeve shell 12 is snap-fitted with the button hole on the mounting shell 13, and the locking portion 131 on the mounting shell 13 is snap-fitted with the button hole on the sleeve shell 12.

[0060] Specifically, the embedding block can be formed by a protrusion on the outer peripheral surface of the sleeve shell 12, and the embedding hole can be integrally formed on the connecting shell 11. The embedding hole and the embedding block are arranged in coordination so that the connecting shell 11 and the sleeve shell 12 are clamped together, thereby limiting the movement of the connecting shell 11 and the sleeve shell 12. The buckle position on the sleeve shell 12 can be two symmetrical blocks integrally formed at one end of the sleeve shell 12, and the buckle hole on the sleeve shell 12 can be opened at the other end of the sleeve shell 12. The locking portion 131 on the mounting shell 13 can also be two symmetrical blocks integrally formed, and the buckle hole on the mounting shell 13 can also be opened. When the mounting shell 13 is clamped with the sleeve shell 12, since the sleeve shell components are made of plastic, the mounting shell 13 is not clamped together. The locking portion 131 on the mounting shell 13 and the buckle position on the sleeve shell 12 can both be elastically deformed, the locking portion 131 on the mounting shell 13 can be snapped into the buckle hole on the sleeve shell 12, and the buckle hole on the mounting shell 13 can be snapped into the buckle position on the sleeve shell 12, and the end of the mounting shell 13 away from the locking portion 131 is integrally formed as an extension portion, the extension portion can be T-shaped, L-shaped, etc., and a card slot that cooperates with the extension portion is integrally formed at the corresponding end of the connecting shell 11, so that the connecting shell 11 and the mounting shell 13 are snapped into each other. In this way, when disassembling, first take out the connecting shell 11 directly, and then press the buckle position on the sleeve shell 12 and the locking portion 131 on the mounting shell 13 to separate the sleeve shell 12 from the mounting shell 13.

[0061] Optionally, in combination with Figure 7, the plug assembly 1 also includes a first spring 17 and a core connector 16, the core connector 16 includes a limiting cap 161 and a shaft 162, the shaft 162 is used to sleeve the first spring 17, and one end of the shaft 162 is located between the two locking parts 131, and the other end of the shaft 162 is connected to the limiting cap 161, the two ends of the first spring 17 are respectively in contact with the locking part 131 and the limiting cap 161, and a ceramic core 18 is inserted into the limiting cap 161.

[0062] Specifically, since the plug connector 16 is made of plastic, the shaft 162 and the limiting cap 161 can be made of integral injection molding, the diameter of the limiting cap 161 is larger than the diameter of the shaft 162, and the diameter of the limiting cap 161 is larger than the diameter of the first spring 17, thereby enabling the limiting cap 161 to conflict with one end of the first spring 17, and the spacing between the two locking portions 131 is smaller than the diameter of the first spring 17, thereby enabling the other end of the first spring 17 to conflict with the two locking portions 131, and the surface of the limiting cap 161 facing away from the shaft 162 is provided with a plug plug. The ferrule hole is used for inserting the ceramic ferrule 18. When the ceramic ferrule 18 is subjected to the force of the optical fiber adapter 22, the ferrule connector 16 can move toward the locking portion 131, so that the first spring 17 is gradually compressed, thereby buffering the impact force when the ceramic ferrule 18 contacts the optical fiber 100 in the alignment sleeve. When the optical fiber adapter 22 is inserted, the compression of the first spring 17 reaches the maximum. At this time, the contact force between the ceramic ferrule 18 and the optical fiber 100 in the alignment sleeve reaches the maximum, further ensuring working stability.

[0063] Optionally, in combination with Figures 9 and 10, the plug assembly 1 also includes a ferrule dust cap 14 and a traction cap 19. The ferrule dust cap 14 is used to be sleeved on the ceramic ferrule 18. The traction cap 19 includes a cap tube 191, a cap cover 192 and a lock buckle 193. One end of the cap tube 191 facing the connecting shell 11 is open, and the other end of the cap tube 191 is provided with an end 1911, and an annular groove is provided on the end 1911, which is engaged with the lock buckle 193. The cap cover 192 is provided with a socket, and the lock buckle 193 is passed through the socket.

[0064] Specifically, the ferrule dust cap 14 can prevent the ceramic ferrule 18 from being contaminated by dust. The external part can be a traction cap 19. The traction cap 19 includes a cap tube 191. The inner circumference of the cap tube 191 can be formed and processed with threads, and the corresponding outer semi-threads are formed on the outer circumferences of the sleeve shell 12 and the mounting shell 13. When the sleeve shell 12 and the mounting shell 13 are clamped together, the outer semi-threads on the sleeve shell 12 and the mounting shell 13 can form a full thread, and the full thread is threadedly connected with the thread on the cap tube 191 to achieve quick assembly and disassembly. The connection method can improve the tensile strength. The end of the cap tube 191 away from the opening is narrowed to an end 1911. The circumference of the end 1911 is provided with a circle of annular grooves, and two penetrating holes are provided on the circumference of the cap 192. The U-shaped lock buckle 193 is inserted from the two holes and stuck in the annular grooves on the circumference of the end 1911, so that the cap 192 can rotate relative to the cap tube 191 but cannot move axially relative to the cap tube 191, so that the optical fiber 100 will not be damaged by the knob when pulling through the hole.

[0065] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. An optical fiber connector assembly, characterized in that, Comprising: 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); The plug assembly (1) is used for inserting an optical fiber (100); The housing member (21) includes a movable outer shell (211) and a ferrule fixing tube (212), and the ferrule fixing tube (212) is used for connecting the plug assembly (1); the movable outer shell (211) is movably arranged on the ferrule fixing tube (212); The optical fiber adapter (22) includes a socket (221), a nut (223) and a socket dust cap (23). A plugging hole position for plugging the socket (221) is provided on the housing member, and a locking assembly is provided at the plugging hole position; when the optical fiber connector (3) is plugged on the optical fiber adapter (22), the housing member (21) triggers the locking assembly to lock the socket (221) and the ferrule fixing tube (212); when the movable outer shell (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 that the optical fiber connector (3) is pulled out of the optical fiber adapter (22).

2. The optical fiber connector assembly according to claim 1, characterized in that, The housing member (21) further includes a tail sheath (213), one end of the ferrule fixing tube (212) is detachably connected to the tail sheath (213), and the movable outer shell (211) is slidably arranged at the other end of the ferrule fixing tube (212).

3. The optical fiber connector assembly according to claim 2, characterized in that, The housing member (21) further includes a second spring (214) and a snap ring (215). The snap ring (215) is arranged between the movable outer shell (211) and the tail sheath (213), and 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 outer shell (211) and the ferrule fixing tube (212). The second spring (214) is sleeved on the ferrule fixing tube (212). An annular convex portion is provided on the inner wall of the movable outer shell (211), and two ends of the second spring (214) respectively abut against the snap ring (215) and the annular convex portion.

4. The optical fiber connector assembly according to claim 3, characterized in that, One end of the ferrule fixing tube (212) away from the tail sheath (213) is provided with symmetric clamping groove parts (2121) and guiding slotted parts (2122). One end inner wall of the movable housing (211) away from the tail sheath (213) is provided with symmetric boss parts (2111) and elastic blocking parts (2112). The socket (221) is provided with symmetric buckle parts (222) and clamping convex parts (225). When the ferrule fixing tube (212) is inserted into the socket (221), the buckle parts (222) are in contact with the elastic blocking parts (2112), so that the socket (221) pushes the movable housing (211) to move axially. At this time, the second spring (214) is compressed until the buckle parts (222) are disengaged from the elastic blocking parts (2112), so that the second spring (214) resumes its original state and drives the movable housing (211) to reset. At this time, the clamping convex parts (225) are clamped with the clamping groove parts (2121).

5. The optical fiber connector assembly according to claim 1, characterized in that, The optical fiber adapter (22) further includes a nut (223) and a socket sealing ring (224). The nut (223) is threadedly connected to one end of the socket (221), and the socket sealing ring (224) is sleeved on the other end of the socket (221); The connector assembly (2) further includes a socket dust cap (23) and a connector dust cap (24). The socket dust cap (23) is used for detachably connecting with the socket (221), and the connector dust cap (24) is used for detachably connecting with the ferrule fixing tube (212).

6. The optical fiber connector assembly according to claim 1, characterized in that, The plug assembly (1) includes a cylindrical housing component and a ceramic ferrule (18). One end inside the housing component is used for inserting the optical fiber (100), and the other end inside the housing component is provided with the ceramic ferrule (18); When no force is applied to the ceramic ferrule (18), the ceramic ferrule (18) extends out of the housing component; when a force is applied to the ceramic ferrule (18), the ceramic ferrule (18) moves in the direction of retracting into the housing component and along the axial direction of the housing component; The housing component includes a connecting shell (11), a sleeved shell (12) and a mounting shell (13). The sleeved shell (12) is clamped with the mounting shell (13), the connecting shell (11) is clamped with the sleeved shell (12), and the connecting shell (11) is clamped with the mounting shell (13).

7. The optical fiber connector assembly according to claim 6, characterized in that, An insert ferrule sealing ring (15) is sleeved on the connecting shell (11). When the connecting shell (11) is inserted into the ferrule fixing tube (212), the insert ferrule sealing ring (15) is used for abutting against the inner wall of the ferrule fixing tube (212).

8. The optical fiber connector assembly according to claim 7, characterized in that, One end of the connecting shell (11) is provided with a fitting hole, the socket shell (12) is provided with a fitting block, the buckling position is clamped with the buckling hole, both ends of the socket shell (12) are respectively provided with a buckling position and a buckling hole, both ends of the mounting shell (13) are respectively provided with a buckling hole and a locking portion (131), the buckling position on the socket shell (12) is clamped with the buckling hole on the mounting shell (13), and the locking portion (131) on the mounting shell (13) is clamped with the buckling hole on the socket shell (12).

9. The optical fiber connector assembly according to claim 8, characterized in that, The plug assembly (1) further includes a first spring (17) and a ferrule connector (16), the ferrule connector (16) includes a limit cap (161) and a shaft rod (162), the first spring (17) is sleeved on the shaft rod (162), and one end of the shaft rod (162) is located between the two locking portions (131), the other end of the shaft rod (162) is connected to the limit cap (161), both ends of the first spring (17) are respectively abutted against the locking portion (131) and the limit cap (161), and the ceramic ferrule (18) is inserted into the limit cap (161).

10. The optical fiber connector assembly according to claim 6, characterized in that, The plug assembly (1) further includes a ferrule dust cap (14) and a traction cap (19), the ferrule dust cap (14) is used for sleeving the ceramic ferrule (18), the traction cap (19) includes a cap tube (191), a cap cover (192) and a lock (193), one end of the cap tube (191) facing the connecting shell (11) is open, the other end of the cap tube (191) is provided with an end portion (1911), an annular groove is provided on the end portion (1911), the annular groove is clamped with the lock (193), a jack is provided on the cap cover (192), and the lock (193) passes through the jack.

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