Optical fiber connector and communication apparatus

Abstract

An optical fiber connector (100) and a communication apparatus. The optical fiber connector (100) comprises: a ferrule base (110); a connector (130), which is fixed at an axial rear end of the ferrule base (110); an optical cable (140), which is configured to pass through the connector (130) and be fixed in the connector (130), wherein one end of the optical cable (140) is connected to the ferrule base (110); a main shaft (120), which is sleeved on the outer side of the ferrule base (110) and the connector (130), wherein a first accommodating cavity (121) extending in an axial direction is provided in the main shaft (120), and the tail end of the ferrule base (110) and the connector (130) are connected to the main shaft (120) in the first accommodating cavity (121); and an outdoor assembly (400), which is sleeved on the outer side of the main shaft (120). The optical fiber connector (100) is provided with the main shaft (120), the main shaft (120) can be connected to both the ferrule base (110) and other structures, and the main shaft (120) has a certain level of structural strength and can prevent the optical fiber connector (100) from being damaged when the optical fiber connector (100) is connected to a communication apparatus.

Description

Optical fiber connector and communication device

[0001] The present application claims priority to the Chinese patent application No. 202421264715.3, filed on June 4, 2024, with the State Intellectual Property Office of China, and the Chinese patent application No. 202421264715.3 has the title of "Optical fiber connector and communication device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of optical fiber connection, in particular to an optical fiber connector and a communication device. BACKGROUND

[0003] With the development of communication technology, optical fiber transmission is more and more widely used in access networks represented by fiber to the home. In the fiber to the home network, the indoor optical cable needs to be laid to each household, and then connected with the user terminal box of each household. In the construction of the fiber to the home network, the ferrule base of the optical fiber connector is usually directly connected with other structures such as outdoor components, and the optical fiber connector is easy to be damaged during connection. SUMMARY

[0004] The present application provides an optical fiber connector and a communication device, by setting a main shaft on the outside of the ferrule base, connecting the outdoor component and the ferrule base through the main shaft respectively, and the main shaft can fix the ferrule base and the connecting piece, which can prevent the optical fiber connector from being damaged during connection.

[0005] In a first aspect, the present application provides an optical fiber connector, comprising: a ferrule base; a connecting piece fixed at the axial rear end of the ferrule base; an optical cable arranged to pass through the connecting piece and fixed in the connecting piece, one end of the optical cable being connected with the ferrule base; a main shaft sleeved on the outside of the ferrule base and the connecting piece, the main shaft having a first accommodating cavity penetrating in the axial direction inside the main shaft, the tail end of the ferrule base and the connecting piece being connected with the main shaft in the first accommodating cavity; and an outdoor component sleeved on the outside of the main shaft.

[0006] The optical fiber connector provided by the present application is provided with a main shaft, which can be connected with the ferrule base and the outdoor component. When the optical fiber connector is connected with the communication device through the outdoor component, the external force applied by the outdoor component is not directly applied to the ferrule base, but is transmitted to the main shaft and then to the ferrule base through the main shaft. The main shaft has a certain structural strength, which can prevent the optical fiber connector from being damaged when connected with the communication device.

[0007] In a possible implementation manner, the inner wall of the first accommodating cavity is provided with a first connecting structure, and the outer wall surface of the ferrule base is provided with a second connecting structure, and the first connecting structure and the second connecting structure are detachably connected, which facilitates assembly and replacement between the main shaft and the ferrule base.

[0008] In a possible implementation manner, the inner wall of the first accommodating cavity and the outer wall of the connecting piece abut, which can avoid rotation of the connecting piece in the first accommodating cavity, and further prevent the optical cable from being twisted or broken.

[0009] In a possible implementation manner, the inner wall of the first accommodating cavity is provided with a boss protruding inward, and the boss is used to abut against the axial tail end of the connecting piece, which can ensure that the connecting piece is installed to a proper position and prevent the connecting piece from sliding out of the first accommodating cavity.

[0010] In a possible implementation manner, the optical fiber connector further includes a first sealing ring, and the first sealing ring is sleeved on the outer wall of the ferrule base. The first sealing ring can prevent external substances such as dust and water vapor from entering, thereby protecting the optical fiber connector from the external environment.

[0011] In a possible implementation manner, one of the ferrule base and the connecting piece has a connecting column, and the other of the ferrule base and the connecting piece is provided with a connecting hole matched with the connecting column; the connecting piece is connected with the ferrule base through matching of the connecting column and the connecting hole. The matching connection of the connecting column and the connecting hole can avoid separation between the connecting piece and the ferrule base, and help to improve the reliability and stability of the connection between the connecting piece and the ferrule base, and improve the stability of the internal structure of the optical fiber connector.

[0012] In a possible implementation manner, the outdoor assembly includes a sleeve, and the sleeve is sleeved on the outer side of the main shaft; the sleeve is provided with a third connecting structure, and the main shaft is provided with a fourth connecting structure; and the third connecting structure and the fourth connecting structure are detachably connected. When the optical fiber connector is connected to a communication device of a fiber to the user, the outdoor assembly and the main shaft are connected through the third connecting structure and the fourth connecting structure, the optical fiber connector is connected to the communication device, and the on-site assembly process is simplified. When it is necessary to maintain or replace components, the outdoor assembly and the main shaft can be separated, and the flexibility and efficiency of installation and maintenance of the outdoor assembly are improved.

[0013] In a possible implementation manner, the third connecting structure includes a first elastic buckle and / or a first clamping groove, and the fourth connecting structure includes a second clamping groove and / or a second elastic buckle matched with the third connecting structure. The first elastic buckle and the second clamping groove are clamped and connected, the first clamping groove and the second elastic buckle are clamped and connected, and the matching of the elastic buckle and the clamping groove makes the outdoor assembly and the main shaft simple, fast and flexible during installation.

[0014] In a possible implementation, the first elastic buckle and / or the first clamping groove has a first guide slope inclined in a radial outward direction of the main shaft along an axial front-to-back direction of the fiber connector, and the second clamping groove and / or the second elastic buckle has a second guide slope inclined in a radial outward direction of the main shaft along the axial front-to-back direction of the fiber connector, and the first guide slope and the second guide slope are coupled. The first guide slope and the second guide slope have a guiding effect, facilitating the outdoor assembly to be inserted along the axial front-to-back direction of the fiber connector with the main shaft.

[0015] In a possible implementation, the number of the third connection structures and the fourth connection structures is at least two, and the at least two third connection structures and the at least two fourth connection structures are arranged in an axial direction of the main shaft. The at least two third connection structures and the at least two fourth connection structures can be inserted one-to-one, so that the insertion between the outdoor assembly and the main shaft is more firm, and the stability of the insertion is improved.

[0016] In a possible implementation, the outdoor assembly further includes an external insert, a through hole is arranged on the side wall of the sleeve, the external insert is fixed in the through hole and protrudes from the inner wall of the sleeve, and the external insert and the inner wall of the through hole are in interference fit. When the outdoor assembly is inserted and connected with the main shaft, the external insert can slide relative to the main shaft, and the relative sliding between the external insert and the main shaft can reduce the friction therebetween, so that the abrasion and damage to the sealing ring between the ferrule base and the sleeve are reduced. The interference fit can increase the bonding strength between the through hole and the external insert, and prevent the through hole and the external insert from loosening and sliding.

[0017] In a possible implementation, a limiting groove is arranged on the outer wall of the ferrule base, a limiting protrusion is arranged on the inner wall of the sleeve, the limiting protrusion is clamped in the limiting groove to limit the relative rotation between the ferrule base and the sleeve, and the damage to the fiber connector caused by the relative rotation between the ferrule base and the sleeve during use is avoided.

[0018] In a second aspect, the present application further provides a fiber connector, including: a ferrule base; a connecting piece fixed at an axial rear end of the ferrule base; an optical cable arranged to pass through the connecting piece and fixed in the connecting piece, one end of the optical cable being connected with the ferrule base; a main shaft sleeved outside the ferrule base and the connecting piece, the main shaft having a first accommodating cavity penetrating in an axial direction inside the main shaft, the tail end of the ferrule base and the connecting piece being connected with the main shaft in the first accommodating cavity; and a pipe pulling member sleeved outside the main shaft.

[0019] The optical fiber connector provided in the application is provided with a main shaft which can be connected with the ferrule base and located in a pipe penetrating traction member which can assist the optical fiber connector to pass through the optical fiber pipe, and the main shaft has certain structural strength when the optical fiber connector passes through the optical fiber pipe, so that the optical fiber connector can be prevented from being damaged when passing through the optical fiber pipe.

[0020] In a possible implementation, a first connecting structure is arranged on the inner wall of the first accommodating cavity, and a second connecting structure is arranged on the outer wall surface of the ferrule base, and the first connecting structure and the second connecting structure are detachably connected. The detachable connection can facilitate the assembly and replacement between the main shaft and the ferrule base.

[0021] In a possible implementation, the inner wall of the first accommodating cavity and the outer wall of the connecting member are in abutment, which can avoid the rotation of the connecting member in the first accommodating cavity, and further prevent the optical cable from being twisted or broken.

[0022] In a possible implementation, a boss protruding inward is arranged on the inner wall of the first accommodating cavity, and the boss is used to abut against the axial tail end of the connecting member, so that the connecting member can be ensured to be installed to a proper position and prevented from sliding out of the first accommodating cavity.

[0023] In a possible implementation, the optical fiber connector further comprises a first sealing ring, and the first sealing ring is sleeved on the outer wall of the ferrule base. The first sealing ring can prevent external substances such as dust and water vapor from entering, so as to protect the optical fiber connector from the external environment.

[0024] In a possible implementation, one of the ferrule base and the connecting member has a connecting column, and the other of the ferrule base and the connecting member is provided with a connecting hole matched with the connecting column; the connecting member is connected with the ferrule base through the matching of the connecting column and the connecting hole. The matching connection of the connecting column and the connecting hole can avoid the separation between the connecting member and the ferrule base, help to improve the reliability and stability of the connection between the connecting member and the ferrule base, and improve the stability of the internal structure of the optical fiber connector.

[0025] In a possible implementation, the pipe penetrating traction member is inserted on the outside of the ferrule base, and a fifth connecting structure is arranged on the outer wall of the ferrule base; the pipe penetrating traction member comprises a traction sleeve pipe having a second accommodating cavity penetrating in the axial direction, and the ferrule base is located in the second accommodating cavity; a sixth connecting structure is arranged on the inner wall of the second accommodating cavity, and the fifth connecting structure and the sixth connecting structure are detachably connected.

[0026] The tube-pulling member is connected with the ferrule base through cooperation between the fifth connecting structure and the sixth connecting structure, so that the ferrule base and the tube-pulling member are detachably connected, and the tube-pulling member and the optical fiber can be pulled by the pulling rope to complete the tube-pulling of the fiber optic connector and reach the communication equipment of the user. When maintenance or replacement of components is required, the tube-pulling member can be separated from the ferrule base, thereby improving the flexibility and efficiency of installation and maintenance of the tube-pulling member. For example, the tube-pulling member is separated from the ferrule base, the ferrule base is assembled with the outdoor assembly, and the fiber optic connector is connected to the communication equipment through the outdoor assembly.

[0027] In a possible implementation, the tube-pulling member further includes a pulling cap, which is arranged at the axial front end of the pulling sleeve and is used to be fixedly connected with the pulling rope. The pulling rope drives the pulling sleeve to move through the pulling cap, and then drives the fiber optic connector to move, thereby completing the tube-pulling. The pulling cap can also play a certain buffering and protection role, so as to avoid damage to the fiber optic connector during pulling.

[0028] In a possible implementation, the axial front end of the pulling sleeve is provided with an inwardly-retracted edge, the pulling cap includes a pulling part and a fixing part, the pulling part and the fixing part are fixedly connected or are in an integrated structure, the fixing part is partially located in the second accommodating cavity and abuts against the inwardly-retracted edge in the axial direction, and the pulling part is located at the axial front end of the pulling sleeve. When the pulling rope drives the pulling cap to pull the fiber optic connector to pull the tube, the inwardly-retracted edge abuts against the fixing part in the axial direction, so as to limit the movement of the fixing part in the pulling direction and prevent the pulling cap from being separated from the pulling sleeve due to the pulling force or external force during the tube-pulling.

[0029] In a possible implementation, the fixing part and the pulling sleeve are rotationally connected with the axial direction as the rotation shaft. When the pulling rope is used to pull the tube-pulling member, the pulling rope rotates during the tube-pulling, the rotation of the pulling rope drives the fixing part to rotate, the fixing part and the pulling sleeve are rotationally connected, and the pulling sleeve can not rotate relative to the fixing part. Therefore, the fiber optic connector also does not rotate, and the fiber optic connector moves forward along the axial direction of the pipeline under the action of the pulling force, rather than rotating with the pulling rope, thereby avoiding unnecessary rotation stress from causing damage to the fiber optic connector and making the tube-pulling operation more smooth.

[0030] In a possible implementation, the traction part has a first abutting surface on the side of the axial tail end, the inner retracted edge has a second abutting surface on the side of the axial front end, and the pipe-penetrating traction member further comprises a snap spring, which is clamped between the first abutting surface and the second abutting surface to limit the axial movement of the traction part relative to the traction sleeve. When the traction part moves axially towards the tail end relative to the traction sleeve, the snap spring is located between the first abutting surface and the second abutting surface, and the side of the snap spring facing the second abutting surface abuts against the second abutting surface, thereby limiting the continuous axial movement of the traction part relative to the traction sleeve towards the tail end and preventing the traction part from entering the traction sleeve to damage the structure such as the ferrule or the optical fiber.

[0031] In a possible implementation, the fifth connecting structure comprises a third thread arranged on the outer wall of the ferrule base, the sixth connecting structure comprises a fourth thread arranged on the inner wall of the traction sleeve, and the third thread and the fourth thread are connected in a threadedly matched manner. The threadedly matched connection has strong bearing capacity and tensile resistance, can withstand a large traction force, and ensures that the optical fiber connector will not be loose or detached between the pipe-penetrating traction member and the ferrule base during the pipe-penetrating process.

[0032] In a possible implementation, the optical fiber connector further comprises a ferrule, which is fixed to the axial front end of the ferrule base and partially located in the second accommodating cavity. The ferrule is used to connect the optical fiber. During the traction of the optical fiber connector, the traction force acts on the fifth connecting structure through the pipe-penetrating traction member. The ferrule is fixed to the axial front end of the ferrule base, the fifth connecting structure is located at the axial rear end of the ferrule, and the fifth connecting structure is located on the ferrule base. Therefore, the traction force drives the ferrule base to move rather than the ferrule, and the connection between the ferrule and the ferrule base during the traction process can be ensured to be unaffected.

[0033] In a third aspect, the present application provides a communication device, which comprises an adapter and the optical fiber connector described in any one of the above aspects. The connection and transmission of optical signals can be achieved by plugging the two optical fiber connectors at the two ends of the adapter. BRIEF DESCRIPTION OF DRAWINGS

[0034] FIG. 1 is a structural schematic diagram of an optical fiber connector provided by an embodiment of the present application;

[0035] FIG. 2 is a sectional view of A-A in FIG. 1 provided by the present application;

[0036] FIG. 3 is a partial structural schematic diagram of an optical fiber connector provided by an embodiment of the present application;

[0037] FIG. 4 is a sectional view of B-B in FIG. 3 provided by the present application;

[0038] Figure 5 is an exploded view of a portion of the fiber optic connector according to embodiments of the application;

[0039] Figure 6 is a view of a portion of the main shaft according to embodiments of the application;

[0040] Figure 7 is a cross-sectional view of C-C of Figure 6 according to embodiments of the application;

[0041] Figure 8 is a view of a portion of the connector according to embodiments of the application;

[0042] Figure 9 is a view of a portion of the ferrule mount according to embodiments of the application;

[0043] Figure 10 is a view of a portion of the outdoor assembly according to embodiments of the application;

[0044] Figure 11 is an exploded view of a portion of the outdoor assembly according to embodiments of the application;

[0045] Figure 12 is a cross-sectional view of D-D of Figure 10 according to embodiments of the application;

[0046] Figure 13 is a magnified view of A of Figure 2 according to embodiments of the application;

[0047] Figure 14 is a cross-sectional view of A-A of Figure 1 according to embodiments of the application;

[0048] Figure 15 is a magnified view of B of Figure 14 according to embodiments of the application;

[0049] Figure 16 is a cross-sectional view of E-E of Figure 1 according to embodiments of the application;

[0050] Figure 17 is a view of a portion of the fiber optic connector according to another embodiment of the application;

[0051] Figure 18 is a cross-sectional view of F-F of Figure 17 according to embodiments of the application;

[0052] Figure 19 is a view of a portion of the tube pull according to embodiments of the application;

[0053] Figure 20 is a cross-sectional view of G-G of Figure 19 according to embodiments of the application;

[0054] Figure 21 is a magnified view of C of Figure 20 according to embodiments of the application;

[0055] Figure 22 is an exploded view of a portion of the tube pull according to embodiments of the application;

[0056] Figure 23 is a view of a portion of the communication device according to embodiments of the application;

[0057] Figure 24 is a view of a portion of the locking cap according to embodiments of the application. DETAILED DESCRIPTION

[0058] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0059] For the convenience of understanding, the English abbreviations and related technical terms involved in the embodiments of the present application are explained and described below.

[0060] Tube running: the process of threading fiber optic cable through a pre-laid fiber optic conduit (usually PVC or other suitable protective tube) inside when laying fiber optic lines.

[0061] It should be clear that the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0062] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0063] It should be understood that the term "and / or" used herein is only a description of the same field of associated objects, which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0064] Depending on the context, the word "if" as used herein can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (a stated condition or event)" can be interpreted as "when determined" or "in response to determining" or "when detecting (a stated condition or event)" or "in response to detecting (a stated condition or event)".

[0065] It should be understood that "first", "second", etc. used in the present application are only for the purpose of distinguishing the description, and cannot be understood as indicating or implying relative importance, nor can it be understood as indicating or implying order.

[0066] In the description of the present application, the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0067] As used herein, "in the range of", unless otherwise indicated or limited, includes both ends of the range by default, for example, in the range of 1 to 5, including both 1 and 5.

[0068] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, it can also be detachable connection, it can also be abutting connection or integral connection; for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0069] With the development of communication technology, optical fiber transmission is more and more widely used in fiber to the x (FTTx) system. FTTx system can be but not limited to fiber to the home (FTTH), fiber to the curb (FFTC), fiber to the premises (FTTP), fiber to the node or neighborhood (FTTN), fiber to the office (FTTO), fiber to the service area (FTTSA). The optical fiber connector and communication device provided in the present application are taken as an example to be applied to the fiber to the home (FTTH) system.

[0070] In the fiber to the home network, the indoor cable needs to be laid on site to each household, and then connected with the user terminal box of each household. Usually the ferrule base of the optical fiber connector is directly connected with other structures such as outdoor components, and when the optical fiber connector is connected to the communication device through the outdoor component, external force will be directly applied to the ferrule base, thereby causing damage to the ferrule and the optical fiber.

[0071] The application provides a fiber connector 100, as shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, the fiber connector 100 comprises a ferrule base 110, the ferrule base 110 is fixed with an optical fiber 300, the ferrule base 110 is a hollow structure, and has a channel penetrating the ferrule base 110 in the axial direction, the axial front end of the ferrule base 110 is connected with a ferrule 170, and the axial rear end of the ferrule base 110 is connected with an optical cable 140, when the optical cable 140 is assembled with the ferrule base 110, the part of the shell of the optical cable 140 is stripped to expose the internal optical fiber 300, the optical fiber 300 is inserted into the channel of the ferrule base 110 from the axial rear end of the ferrule base 110 in the axial direction, and is fixed in the channel of the ferrule base 110, and the part of the optical fiber 300 is used to connect with the ferrule 170. In the application, the axial direction refers to the axial direction of the fiber connector 100 in the assembled state. The axial front end is the positive direction of X, the axial rear end is the negative direction of X, and the Y direction is perpendicular to the X direction. The axial front end, the axial rear end and the axial tail end appearing below have the same meaning.

[0072] The connecting piece 130 is fixed at the axial rear end of the ferrule base 110, the connecting piece 130 can be connected with the ferrule 170 through the ferrule base 110, and the optical cable 140 can pass through the ferrule base 110 and be connected with the ferrule 170. The ferrule base 110 can play a connecting role between the connecting piece 130 and the ferrule 170, so that the optical cable 140, the connecting piece 130 and the ferrule 170 can be assembled into an integral structure.

[0073] The optical cable 140 is arranged to pass through the connecting piece 130 and is fixed in the connecting piece 130, and one end of the optical cable 140 is connected with the ferrule base 110. The optical cable 140 can be partially arranged in the connecting piece 130 and be fixedly connected with the inside of the connecting piece 130, for example, the optical cable 140 and the connecting piece 130 can be connected by bonding or the like, so as to improve the firmness and reliability of the connection between the optical cable 140 and the connecting piece 130. The optical cable 140 can comprise a cable core and an outer sheath, and the outer sheath can be sleeved on the cable core, for example, the outer sheath can be aramid, and the outer sheath can play a protective role on the cable core, so as to reduce or avoid the breakage of the optical cable 140, help to improve the tensile strength of the optical cable 140, and prolong the service life of the optical cable 140. The connecting piece 130 can be sleeved on the outer sheath and bonded with the outer sheath. In this way, the separation of the optical cable 140 and the connecting piece 130 can be effectively reduced or avoided, and the firmness and reliability of the connection between the optical cable 140 and the connecting piece 130 can be effectively improved.

[0074] One end of the optical cable 140 can be connected with the ferrule base 110, the optical fiber 300 is inserted into the channel of the ferrule base 110 from the axial rear end of the ferrule base 110 in the axial direction, and is fixed in the channel of the ferrule base 110. For example, the ferrule base 110 can have a plurality of channels, and the optical cable 140 can include a plurality of optical fibers 300, and each optical fiber 300 can be arranged in each channel respectively.

[0075] The main shaft 120 is sleeved outside the ferrule base 110 and the connecting piece 130, the main shaft 120 is fixed at the tail end of the ferrule base 110, and the optical fiber 300 passes through the main shaft 120. The connecting piece 130 can be located in the main shaft 120 and arranged close to the axial tail end of the main shaft 120, and the connecting piece 130 and the main shaft 120 can be coupled with each other. For example, a limiting structure can be arranged on the connecting piece 130 and the main shaft 120 respectively, and the two limiting structures can be matched with each other to form a limiting fit between the connecting piece 130 and the main shaft 120, so as to realize the coupling between the connecting piece 130 and the main shaft 120. Referring to FIGS. 5, 6 and 7, the main shaft 120 can have a hollow structure, and the main shaft 120 has a first accommodating cavity 121 penetrating the main shaft 120 in the axial direction. The first accommodating cavity 121 in the main shaft 120 is used to accommodate the ferrule base 110 and the connecting piece 130, and the tail end of the ferrule base 110 and the connecting piece 130 are connected with the main shaft 120 in the first accommodating cavity 121. In the embodiment of the application, the main shaft 120 can have a cylindrical structure, the main shaft 120 is sleeved outside the axial tail end of the ferrule base 110, the main shaft 120 is fixedly connected with the axial tail end of the ferrule base 110, and the axial front end of the ferrule base 110 is located outside the first accommodating cavity 121. The connecting piece 130 is completely located in the first accommodating cavity 121. The main shaft 120 can protect the part of the ferrule base 110 and the connecting piece 130 located in the first accommodating cavity 121.

[0076] The outdoor assembly 400 is sleeved outside the main shaft 120, and the outdoor assembly 400 is connected with the main shaft 120 to connect the fiber optic connector 100 and the communication equipment.

[0077] The fiber optic connector 100 provided by the application is provided with a main shaft, the main shaft 120 can be connected with the ferrule base 110 and the outdoor assembly 400. When the fiber optic connector 100 is connected with the communication equipment through the outdoor assembly 400, the external force applied by the outdoor assembly 400 is not directly applied to the ferrule base 110, but is transmitted to the main shaft 120 and then to the ferrule base 110 through the main shaft 120. The main shaft 120 has a certain structural strength and can prevent the fiber optic connector 100 from being damaged by external force when connected with the communication equipment.

[0078] In a possible implementation, the inner wall of the first accommodating cavity 121 is provided with a first connecting structure 1211, and the outer wall surface of the ferrule base 110 is provided with a second connecting structure 113. The first connecting structure 1211 and the second connecting structure 113 are detachably connected.

[0079] The first connecting structure 1211 can be a first thread, and the second connecting structure 113 can be a second thread. The first thread and the second thread are connected in cooperation to detachably connect the first connecting structure 1211 and the second connecting structure 113. Referring to FIGS. 5, 6 and 7, the inner wall of the main shaft 120 is provided with a first thread, and the outer wall of the ferrule base 110 is provided with a second thread. The first thread of the main shaft 120 is threadedly connected with the second thread of the ferrule base 110 to fix the main shaft 120 at the axial tail end of the ferrule base 110. The detachable connection of the first connecting structure 1211 and the second connecting structure 113 can facilitate the assembly and replacement between the main shaft 120 and the ferrule base 110.

[0080] In a possible implementation, the inner wall of the first accommodating cavity 121 and the outer wall of the connecting piece 130 are in abutment. Referring to FIG. 4, the connecting piece 130 is located in the first accommodating cavity 121. The abutment of the inner wall of the first accommodating cavity 121 and the outer wall of the connecting piece 130 can avoid the rotation of the connecting piece 130 in the first accommodating cavity 121, thereby preventing the optical cable 140 from being twisted or broken. The abutment of the inner wall of the first accommodating cavity 121 and the outer wall of the connecting piece 130 can be achieved in various ways. For example, the inner wall of the first accommodating cavity 121 can be in interference fit with the outer wall of the connecting piece 130. The outer diameter of the connecting piece 130 is slightly larger than the inner diameter of the first accommodating cavity 121. When assembling, the connecting piece 130 is inserted into the first accommodating cavity 121, so that the inner wall of the first accommodating cavity 121 and the outer wall of the connecting piece 130 are in abutment.

[0081] In a possible implementation, the inner wall of the first accommodating cavity 121 is provided with a boss 1212 protruding inwardly, and the boss 1212 is used to abut against the axial tail end of the connecting piece 130. Referring to FIGS. 4 and 7, the inner wall of the first accommodating cavity 121 is provided with the boss 1212, which extends from the inner wall of the first accommodating cavity 121 to the inside of the first accommodating cavity 121. The boss 1212 is located at the end of the main shaft 120 away from the ferrule base 110, and abuts against the axial tail end of the connecting piece 130, which can ensure that the connecting piece 130 is installed to the appropriate position and prevent the connecting piece 130 from sliding out of the first accommodating cavity 121 along the direction of X.

[0082] In a possible implementation, the fiber connector 100 further comprises a first sealing ring 150 sleeved on the outer wall of the ferrule base 110. Referring to FIG. 4, the outer wall of the ferrule base 110 is provided with a receiving groove for accommodating the first sealing ring 150, the first sealing ring 150 is located in the receiving groove, the inner wall surface of the first sealing ring 150 is in sealing connection with the outer wall surface of the ferrule base 110, and the outer wall surface of the first sealing ring 150 is in sealing connection with the inner wall surface of the main shaft 120. The gap between the main shaft 120 and the ferrule base 110 is sealed by the first sealing ring 150, so as to prevent external substances such as dust and water vapor from entering.

[0083] In a possible implementation, referring to FIGS. 8 and 9, one of the ferrule base 110 and the connecting piece 130 is provided with a connecting column 151, and the other of the ferrule base 110 and the connecting piece 130 is provided with a connecting hole 133 matched with the connecting column 151; the connecting piece 130 and the ferrule base 110 are connected through the matching of the connecting column 151 and the connecting hole 133.

[0084] In an embodiment, the connecting column 151 can be arranged on the ferrule base 110 as shown in FIG. 9, and the connecting hole 133 can be arranged on the connecting piece 130 as shown in FIG. 8. The connecting column 151 can be arranged in the connecting hole 133, and the connecting piece 130 and the ferrule base 110 can be connected through the matching of the connecting column 151 and the connecting hole 133. In this way, the separation of the connecting piece 130 and the ferrule base 110 can be avoided, the reliability and stability of the connection between the connecting piece 130 and the ferrule base 110 can be improved, and the stability of the internal structure of the fiber connector 100 can be improved.

[0085] The connecting piece 130 can be a tubular structure with a hollow inside, and the two ends of the tubular structure are penetrated. The optical cable 140 can pass through the tubular structure, and the optical cable 140 and the connecting piece 130 can be fixedly connected through a glue pouring mode. The connecting piece 130 can be a glue pouring sleeve.

[0086] In a possible implementation, the end of the connecting piece 130 close to the ferrule base 110 is further provided with anti-rotation parts, and the anti-rotation parts are symmetrically arranged in the circumferential direction. The anti-rotation parts can abut against the ferrule base 110, so that the connecting piece 130 and the ferrule base 110 can form an anti-rotation matching, thereby preventing the connecting piece 130 from rotating relative to the ferrule base 110.

[0087] In a possible implementation, the outdoor assembly 400 comprises a sleeve 410 sleeved on the outer side of the main shaft 120; the sleeve 410 is provided with a third connecting structure 411, and the main shaft 120 is provided with a fourth connecting structure 131, and the third connecting structure 411 and the fourth connecting structure 131 are detachably connected.

[0088] Referring to FIGS. 10, 11 and 12, the outdoor assembly 400 includes a sleeve 410 sleeved on the outside of the main shaft, the sleeve 410 can have a hollow structure, the sleeve 410 has a cavity inside the sleeve 410 penetrating the sleeve 410 in the axial direction, the sleeve 410 is sleeved on the outside of the main shaft, and at least part of the main shaft 120 is arranged inside the sleeve 410. In the embodiment of the application, the sleeve 410 can have a cylindrical structure, the sleeve 410 is sleeved on the outside of the main shaft, one end of the main shaft 120 in the X positive direction is located inside the sleeve 410, and one end of the main shaft 120 in the X negative direction is located outside the sleeve 410.

[0089] The sleeve 410 is provided with a third connecting structure 411, and the main shaft 120 is provided with a fourth connecting structure 131. The third connecting structure 411 and the fourth connecting structure 131 are detachably connected, and the main shaft 120 and the outdoor assembly 400 are detachably connected through the third connecting structure 411 and the fourth connecting structure 131. The detachable connection in the application is a connection mode that can be artificially disassembled and reassembled, and will not cause permanent damage to the connecting parts when disassembled, and can be repeatedly disassembled and assembled. When the fiber connector 100 and the optical fiber 300 reach the communication equipment of the user, the outdoor assembly 400 and the main shaft 120 are connected through the third connecting structure 411 and the fourth connecting structure 131, the fiber connector 100 is connected to the communication equipment, and the on-site assembly process is simplified. When maintenance or replacement of parts is required, the outdoor assembly 400 and the main shaft 120 can be separated, improving the flexibility and efficiency of installation and maintenance of the outdoor assembly 400 and the main shaft 120.

[0090] In a possible implementation, the third connecting structure 411 includes a first elastic buckle 411a and / or a first clamping groove 411b, and the fourth connecting structure 131 includes a second clamping groove 131a and / or a second elastic buckle 131b matched with the third connecting structure 411. The third connecting structure 411 can be the first elastic buckle 411a, and the fourth connecting structure 131 can be the second clamping groove 131a matched with the third connecting structure 411. Alternatively, the third connecting structure 411 can be the first clamping groove 411b, and the fourth connecting structure 131 can be the second elastic buckle 131b matched with the third connecting structure 411. Alternatively, the third connecting structure 411 can be the first elastic buckle 411a and the first clamping groove 411b, and the fourth connecting structure 131 can be the second clamping groove 131a and the second elastic buckle 131b matched with the third connecting structure 411.

[0091] In an embodiment, referring to FIGS. 2 and 13, the third connecting structure 411 can be a first clasp 411a, and the fourth connecting structure 131 can be a second clamping groove 131a matched with the third connecting structure 411. When the outdoor assembly 400 is installed with the main shaft 120, the sleeve 410 of the outdoor assembly 400 is sleeved on the end of the main shaft 120 connected with the ferrule base 110, the inner wall of the sleeve 410 is provided with the first clasp 411a, the outer wall of the main shaft 120 is provided with the second clamping groove 131a, the first clasp 411a and the second clamping groove 131a are matched, the first clasp 411a is inserted into the second clamping groove 131a, and the first clasp 411a and the second clamping groove 131a are clamped and fixed to fixedly connect the outdoor assembly 400 with the main shaft 120.

[0092] In an embodiment, referring to FIGS. 14 and 15, the third connecting structure 411 can be a first clamping groove 411b, and the fourth connecting structure 131 can be a second clasp 131b matched with the third connecting structure 411. When the outdoor assembly 400 is installed with the main shaft 120, the sleeve 410 of the outdoor assembly 400 is sleeved on the end of the main shaft 120 connected with the ferrule base 110, the inner wall of the sleeve 410 is provided with the first clamping groove 411b, the outer wall of the main shaft 120 is provided with the second clasp 131b, the first clamping groove 411b and the second clasp 131b are matched, the second clasp 131b is inserted into the first clamping groove 411b, and the second clasp 131b and the first clamping groove 411b are clamped and fixed to fixedly connect the outdoor assembly 400 with the main shaft 120.

[0093] In an embodiment, the third connecting structure 411 can be the first clasp 411a and the first clamping groove 411b, and the fourth connecting structure 131 can be the second clamping groove 131a and the second clasp 131b matched with the third connecting structure 411. At this time, the number of the third connecting structure 411 and the fourth connecting structure 131 is greater than one. When the outdoor assembly 400 is installed with the main shaft 120, the sleeve 410 of the outdoor assembly 400 is sleeved on the end of the main shaft 120 connected with the ferrule base 110, the inner wall of the sleeve 410 is provided with the first clasp 411a and the first clamping groove 411b, the outer wall of the main shaft 120 is provided with the second clamping groove 131a and the second clasp 131b. The first clasp 411a and the second clamping groove 131a are matched, the first clamping groove 411b and the second clasp 131b are matched, the first clasp 411a is inserted into the second clamping groove 131a, the first clasp 411a and the second clamping groove 131a are clamped and fixed, the second clasp 131b is inserted into the first clamping groove 411b, and the second clasp 131b and the first clamping groove 411b are clamped and fixed to fixedly connect the outdoor assembly 400 with the main shaft 120.

[0094] In a possible implementation, the inner wall of the sleeve 410 and the outer wall of the main shaft 120 are in abutment. The main shaft 120 is located in the sleeve 410, and the abutment of the inner wall of the sleeve 410 and the outer wall of the main shaft 120 can avoid rotation of the main shaft 120 in the sleeve 410, thereby preventing the optical cable 140 from being twisted or broken. The abutment of the inner wall of the sleeve 410 and the outer wall of the main shaft 120 can be achieved in various ways. For example, the inner wall of the sleeve 410 can be in interference fit with the outer wall of the main shaft 120, the outer diameter of the main shaft 120 is slightly larger than the inner diameter of the sleeve 410, and the main shaft 120 is inserted into the sleeve 410 during assembly, so that the inner wall of the sleeve 410 and the outer wall of the main shaft 120 are in abutment, thereby achieving detachable connection of the outdoor assembly 400 and the main shaft 120.

[0095] In a possible implementation, the first elastic buckle 411a and / or the first clamping groove 411b has a first guide slope 411c inclined in the radial outward direction of the main shaft 120, and the second clamping groove 131a and / or the second elastic buckle 131b has a second guide slope 122a inclined in the radial outward direction of the main shaft 120, and the first guide slope 411c and the second guide slope 122a are coupled.

[0096] The third connecting structure 411 can be the first elastic buckle 411a, and the fourth connecting structure 131 can be the second clamping groove 131a matched with the third connecting structure 411. The third connecting structure 411 can be the first clamping groove 411b, and the fourth connecting structure 131 can be the second elastic buckle 131b matched with the third connecting structure 411. The third connecting structure 411 can be the first elastic buckle 411a and the first clamping groove 411b, and the fourth connecting structure 131 can be the second clamping groove 131a and the second elastic buckle 131b matched with the third connecting structure 411. The embodiments of the present application take the third connecting structure 411 as the first elastic buckle 411a and the fourth connecting structure 131 as the second clamping groove 131a as an example for detailed description.

[0097] In an embodiment, referring to FIG. 13, the third connecting structure 411 can be a first elastic buckle 411a, and the fourth connecting structure 131 can be a second clamping groove 131a matched with the third connecting structure 411. The first elastic buckle 411a has a first guide slope 411c inclined in a radial outward direction of the main shaft 120 along a direction from an axial front end to an axial rear end of the fiber connector 100, and the second clamping groove 131a has a second guide slope 122a inclined in the radial outward direction of the main shaft 120. When the outdoor assembly 400 is connected with the main shaft 120 along the direction from the axial front end to the axial rear end of the fiber connector 100, the first guide slope 411c and the second guide slope 122a are coupled to achieve clamping connection of the first elastic buckle 411a and the second clamping groove 131a, so as to fixedly connect the outdoor assembly 400 with the main shaft 120. The first guide slope 411c and the second guide slope 122a have a guiding effect, which facilitates the outdoor assembly 400 to be inserted with the main shaft 120 of the fiber connector 100 along the direction from the axial front end to the axial rear end of the fiber connector 100.

[0098] In a possible implementation, the number of the third connecting structure 411 and the fourth connecting structure 131 is at least two, and the at least two third connecting structures 411 and the at least two fourth connecting structures 131 are arranged in an axial direction of the main shaft 120. The number of the third connecting structure 411 can be two or three or even more, and the number of the fourth connecting structure 131 can be two or three or even more. The number of the third connecting structure 411 and the number of the fourth connecting structure 131 can be the same or different. The number of the third connecting structure 411 and the number of the fourth connecting structure 131 are at least two, and the at least two third connecting structures 411 and the at least two fourth connecting structures 131 are one-to-one inserted, which can make the insertion between the outdoor assembly 400 and the main shaft 120 more firm and improve the stability of the insertion.

[0099] In an embodiment, the number of the third connecting structure 411 is two, and the number of the fourth connecting structure 131 is also two. The two third connecting structures 411 are arranged on the sleeve 410 in an axial direction (X direction), and the two fourth connecting structures 131 are arranged on the main shaft 120 in the axial direction (X direction). The third connecting structure 411 and the fourth connecting structure 131 are one-to-one detachably connected, and the outdoor assembly 400 is inserted and connected with the main shaft 120 of the fiber connector 100 in the X direction.

[0100] In a possible implementation, the outdoor assembly 400 further includes an external insert 420. The side wall of the sleeve 410 is provided with a through hole 412, and the external insert 420 is fixed in the through hole 412 and protrudes from the inner wall of the sleeve 410. The external insert 420 and the inner wall of the through hole 412 are in interference fit.

[0101] Referring to FIGS. 11 and 12, the sleeve 410 has a side wall arranged in a circumferential direction, and the side wall is provided with a through hole 412 penetrating the side wall in a radial direction of the sleeve 410. The outdoor assembly 400 further comprises an external insert 420 fixed in the through hole 412 and protruding from an inner wall of the sleeve 410. In the embodiment of the present application, the through hole 412 can be two, and the two through holes 412 are symmetrically arranged on the side wall of the sleeve 410 in the circumferential direction. The external insert 420 can also be two, and the two external inserts 420 and the two through holes 412 are respectively installed one by one. The external insert 420 is inserted into the through hole 412, and a part of the external insert 420 penetrates the through hole 412 and protrudes from the inner wall of the sleeve 410 to the inside of the sleeve 410. When the outdoor assembly 400 is assembled with the main shaft 120, the main shaft 120 of the fiber optic connector 100 is located inside the sleeve 410 of the outdoor assembly 400. After the external insert 420 is inserted into the through hole 412, the external insert 420 protruding from the inner wall of the sleeve 410 is in contact with the main shaft 120. The external insert 420 can have an arc-shaped structure, and the side surface of the external insert 420 close to the main shaft 120 is an arc surface. The curvature of the arc surface is the same as the curvature of the side wall of the main shaft 120, and the arc surface can better fit the side wall of the main shaft 120. When the outdoor assembly 400 is connected with the main shaft 120 of the fiber optic connector 100 in the X direction, the external insert 420 can slide relative to the main shaft 120. The relative sliding between the external insert 420 and the main shaft 120 can reduce the friction therebetween, thereby reducing the abrasion and damage to the sealing ring between the ferrule base 110 and the sleeve 410.

[0102] The external insert 420 and the inner wall of the through hole 412 are in interference fit. The inner wall surface of the through hole 412 and the outer wall surface of the external insert 420 are in interference fit. The inner wall surface of the through hole 412 is slightly larger than the outer wall surface of the external insert 420, so that a certain pressure is formed between the inner wall surface of the through hole 412 and the outer wall surface of the external insert 420. The interference fit between the inner wall surface of the through hole 412 and the outer wall surface of the external insert 420 can increase the bonding strength between the through hole 412 and the external insert 420, and prevent the through hole 412 and the external insert 420 from loosening and sliding.

[0103] In a possible embodiment, the outer wall of the ferrule base 110 is provided with a limiting groove 112, and the inner wall of the sleeve 410 is provided with a limiting protrusion 413. The limiting protrusion 413 is clamped in the limiting groove 112 to limit the relative rotation between the ferrule base 110 and the sleeve 410.

[0104] Referring to FIGS. 9 and 16, the ferrule base 110 is located inside the sleeve 410, the sleeve 410 is sleeved outside the ferrule base 110, a limiting groove 112 is arranged on the outer wall of the ferrule base 110, and a limiting protrusion 413 is arranged on the inner wall of the sleeve 410. The limiting protrusion 413 can be clamped in the limiting groove 112, when the limiting protrusion 413 is clamped in the limiting groove 112, the relative rotation between the ferrule base 110 and the sleeve 410 is limited and cannot rotate, avoiding damage to other structures of the fiber optic connector 100 and the optical fiber 300 caused by relative rotation between the ferrule base 110 and the sleeve 410 during use.

[0105] In one possible implementation, the outdoor assembly 400 further comprises a locking cap 430, which is sleeved on the outside of the sleeve 410. Referring to FIGS. 11 and 12, the locking cap 430 can have a hollow columnar structure, which is sleeved on the outside of the sleeve 410 and can rotate relative to the sleeve 410. The locking cap 430 is sleeved on the outside of the sleeve 410, so that it is easier for a technician to hold when installing, connecting or dismounting the outdoor assembly 400 with the communication device. The locking cap 430 can lock the fiber optic connector 100 to the adapter 20. In addition, the locking cap 430 can also be rotationally sleeved on the outside of the sleeve 410. In one embodiment, referring to FIGS. 11 and 24, the inner wall of the locking cap 430 can be provided with limiting blocks 431, and the number of the limiting blocks 431 can be two, which are arranged at intervals along the circumference of the locking cap 430. The outer wall of the sleeve 410 can be provided with a limiting post 414, which is located between the two limiting blocks 431, so that the locking cap 430 rotates relative to the sleeve 410 within the angle range defined by the two limiting blocks 431. The inner wall of the locking cap 430 is further provided with at least one locking block 432, which is used to cooperate with the locking groove on the adapter 20. The locking block 432 can also be used to cooperate with the locking groove on the dust cap 450, which can protect the fiber optic connector 100 when the fiber optic connector 100 is not plugged with the adapter 20. The locking groove on the adapter 20 can have the same structure as the locking groove 451 on the dust cap 450, which can include a first locking portion 451a and a second sliding groove portion 451b (the opening of the locking groove 451), the first locking portion 451a is arranged along the circumference of the dust cap 450, and the second sliding groove portion 451b is arranged along the axial direction of the dust cap 450, and the first locking portion 451a and the second sliding groove portion 451b communicate with each other. The locking block 432 slides into the first locking portion 451a through the second sliding groove portion 451b, and is rotated to the locking position of the first locking portion 451a by rotating the locking cap 430, so that the locking block 432 cooperates with the locking groove 451 to be locked. When the locking cap 430 is stopped at any position within the angle range defined by the two limiting blocks 431 relative to the sleeve 410, the locking block 432 can be guided into the locking position of the locking groove 451.

[0106] In a possible implementation, the outdoor assembly 400 further comprises a second sealing ring 440 sealingly connected between the locking cap 430 and the sleeve 410. Referring to FIG. 12, the sleeve 410 is sealingly connected with the locking cap 430, and the second sealing ring 440 is sealingly connected between the locking cap 430 and the sleeve 410. The second sealing ring 440 is sleeved on the sleeve 410, and the sleeve 410 is provided with a groove for placing the second sealing ring 440, and the second sealing ring 440 is located in the groove. The inner wall surface of the second sealing ring 440 is sealingly connected with the outer wall surface of the sleeve 410, and the outer wall surface of the second sealing ring 440 is sealingly connected with the inner wall surface of the locking cap 430, so as to form an effective seal between the locking cap 430 and the sleeve 410. After the outdoor assembly 400 is assembled with the main shaft 120, the second sealing ring 440 can prevent external substances such as dust and water vapor from entering the interior of the fiber optic connector 100, thereby protecting the fiber optic connector 100 from the external environment.

[0107] In a possible implementation, the outdoor assembly 400 further comprises a dustproof cap 450 sleeved on the axial front end of the sleeve 410. Referring to FIG. 12, the dustproof cap 450 is detachably connected with the locking cap 430 and covers the axial front end of the sleeve 410, so as to protect the fiber optic connector 100 from dust and other impurities.

[0108] In a possible implementation, the axial tail end portion of the dustproof cap 450 is inserted into the locking cap 430, and the outdoor assembly 400 further comprises a third sealing ring 460 sealingly connected between the dustproof cap 450 and the locking cap 430. Referring to FIG. 12, the third sealing ring 460 is sleeved on the outer wall surface of the dustproof cap 450, and FIG. 12 shows a state in which the dustproof cap 450 is not covered on the sleeve 410. The dustproof cap 450 has a receiving cavity, and when the dustproof cap 450 is connected with the sleeve 410, the axial tail end portion of the dustproof cap 450 is inserted between the inner wall surface of the locking cap 430 and the outer wall surface of the sleeve 410, the axial front end of the sleeve 410 is located in the receiving cavity of the dustproof cap 450, the third sealing ring 460 is sleeved on the outer wall surface of the dustproof cap 450, the inner wall surface of the third sealing ring 460 is sealingly connected with the outer wall surface of the dustproof cap 450, and the outer wall surface of the third sealing ring 460 is sealingly connected with the inner wall surface of the locking cap 430, so as to seal the dustproof cap 450 and the locking cap 430 and prevent dust and other impurities from entering the sleeve 410 to damage the fiber optic connector 100.

[0109] In one possible implementation, the outdoor assembly 400 further comprises a connecting rope 470 connecting the sleeve 410 and the dust cap 450. Referring to Figs. 11 and 12, one end of the connecting rope 470 is sleeved on the sleeve 410 and connected with the sleeve 410. The sleeve 410 can be provided with a clamping groove for connecting with the connecting rope 470, and the one end of the connecting rope 470 is sleeved in the clamping groove and connected with the sleeve 410. The other end of the connecting rope 470 is connected with the dust cap 450. The axial front end of the dust cap 450 is provided with a connecting hole for connecting with the connecting rope 470, and the connecting rope 470 is tied to the connecting hole and connected with the dust cap 450. The dust cap 450 and the sleeve 410 are connected together through the connecting rope 470, and when the dust cap 450 and the sleeve 410 are in an unclosed state, the dust cap 450 can be connected with the sleeve 410 through the connecting rope 470, so as to avoid the loss of the dust cap 450.

[0110] The application further provides an optical fiber connector 100, as shown in Figs. 17 and 18, which comprises a ferrule base 110, a main shaft 120, a connecting piece 130, an optical cable 140 and a tube-penetrating pulling piece 200. The ferrule base 110 is fixed with an optical fiber 300, and the ferrule base 110 is a hollow structure and has a channel penetrating through the ferrule base 110 in the axial direction. The axial front end of the ferrule base 110 is connected with a ferrule 170, and the axial rear end of the ferrule base 110 is connected with the optical cable 140. When the optical cable 140 is assembled with the ferrule base 110, a part of the shell of the optical cable 140 is stripped off to expose the internal optical fiber 300. The optical fiber 300 is inserted into the channel of the ferrule base 110 in the axial direction from the axial rear end of the ferrule base 110 and is fixed in the channel of the ferrule base 110. The part of the optical fiber 300 is used for connecting with the ferrule 170.

[0111] The connecting piece 130 is fixed at the axial rear end of the ferrule base 110, and the connecting piece 130 can be connected with the ferrule 170 through the ferrule base 110. The optical cable 140 can pass through the ferrule base 110 and be connected with the ferrule 170. The ferrule base 110 can play a connecting role between the connecting piece 130 and the ferrule 170, so that the optical cable 140, the connecting piece 130 and the ferrule 170 can be assembled into an integral structure.

[0112] The optical cable 140 is arranged through the connecting piece 130 and fixed in the connecting piece 130, and one end of the optical cable 140 is connected with the ferrule seat 110. The optical cable 140 can be partially arranged in the connecting piece 130 and fixedly connected with the inside of the connecting piece 130. For example, the optical cable 140 and the connecting piece 130 can be connected by bonding or the like, so as to improve the firmness and reliability of the connection between the optical cable 140 and the connecting piece 130. The optical cable 140 can include a cable core and an outer sheath. The outer sheath can be sleeved on the cable core. For example, the outer sheath can be aramid. The outer sheath can protect the cable core, so as to reduce or avoid the breakage of the optical cable 140, help to improve the tensile strength of the optical cable 140, and prolong the service life of the optical cable 140. The connecting piece 130 can be sleeved on the outer sheath and bonded with the outer sheath. In this way, the separation of the optical cable 140 and the connecting piece 130 can be effectively reduced or avoided, and the firmness and reliability of the connection between the optical cable 140 and the connecting piece 130 can be effectively improved.

[0113] One end of the optical cable 140 can be connected with the ferrule seat 110. The optical fiber 300 is inserted into the channel of the ferrule seat 110 in the axial direction from the axial rear end of the ferrule seat 110 and is fixed in the channel of the ferrule seat 110. For example, the ferrule seat 110 can have a plurality of channels. The optical cable 140 can include a plurality of optical fibers 300. Each optical fiber 300 can be arranged in each channel.

[0114] The main shaft 120 is sleeved outside the ferrule seat 110 and the connecting piece 130. The main shaft 120 is fixed at the tail end of the ferrule seat 110, and the optical fiber 300 passes through the main shaft 120. The connecting piece 130 can be located in the main shaft 120 and arranged close to the axial tail end of the main shaft 120. The connecting piece 130 and the main shaft 120 can be coupled with each other. For example, a limiting structure can be arranged on the connecting piece 130 and the main shaft 120 respectively. The two limiting structures can cooperate with each other to form a limiting fit between the connecting piece 130 and the main shaft 120, so as to realize the coupling between the connecting piece 130 and the main shaft 120. Referring to FIGS. 5, 6 and 7, the main shaft 120 can have a hollow structure. The main shaft 120 has a first accommodating cavity 121 inside the main shaft 120, which penetrates the main shaft 120 in the axial direction. The first accommodating cavity 121 inside the main shaft 120 is used to accommodate the ferrule seat 110 and the connecting piece 130. The tail end of the ferrule seat 110 and the connecting piece 130 are connected with the main shaft 120 in the first accommodating cavity 121. In the embodiment of the present application, the main shaft 120 can have a cylindrical structure. The main shaft 120 is sleeved outside the axial tail end of the ferrule seat 110. The main shaft 120 is fixedly connected with the axial tail end of the ferrule seat 110. The axial front end of the ferrule seat 110 is located outside the first accommodating cavity 121. The connecting piece 130 is completely located in the first accommodating cavity 121. The main shaft 120 can protect the part of the ferrule seat 110 and the connecting piece 130 located in the first accommodating cavity 121.

[0115] The tube passing traction member 200 is sleeved on the outside of the main shaft 120, and the tube passing traction member 200 is connected with the main shaft 120 and transmits traction force to the fiber connector 100 through the main shaft, so as to pass the fiber connector 100 through the fiber tube.

[0116] The fiber connector 100 provided in the application is provided with the main shaft 120, which can be connected with the ferrule seat 110 and located in the tube passing traction member 200. The tube passing traction member 200 can assist the fiber connector 100 to pass through the fiber tube. When the fiber connector 100 passes through the fiber tube, the main shaft 120 has a certain structural strength, which can prevent the fiber connector 100 from being damaged when passing through the fiber tube.

[0117] In a possible implementation, the inner wall of the first accommodating cavity 121 is provided with a first connecting structure 1211, and the outer wall surface of the ferrule seat 110 is provided with a second connecting structure 113. The first connecting structure 1211 and the second connecting structure 113 are detachably connected.

[0118] The first connecting structure 1211 can be a first thread, and the second connecting structure 113 can be a second thread. The first thread and the second thread are connected in cooperation, so that the first connecting structure 1211 and the second connecting structure 113 are detachably connected. Referring to FIGS. 5, 6 and 7, the inner wall of the main shaft 120 is provided with a first thread, and the outer wall of the ferrule seat 110 is provided with a second thread. The first thread of the main shaft 120 is threadedly connected with the second thread of the ferrule seat 110, so that the main shaft 120 is fixed at the axial tail end of the ferrule seat 110. The first connecting structure 1211 and the second connecting structure 113 are detachably connected, which can facilitate the assembly and replacement between the main shaft 120 and the ferrule seat 110.

[0119] In a possible implementation, the inner wall of the first accommodating cavity 121 and the outer wall of the connecting piece 130 are in abutment. Referring to FIG. 4, the connecting piece 130 is located in the first accommodating cavity 121. The abutment between the inner wall of the first accommodating cavity 121 and the outer wall of the connecting piece 130 can avoid the rotation of the connecting piece 130 in the first accommodating cavity 121, thereby preventing the fiber cable 140 from being twisted or broken. The abutment between the inner wall of the first accommodating cavity 121 and the outer wall of the connecting piece 130 can be achieved in various ways. For example, the inner wall of the first accommodating cavity 121 can be in interference fit with the outer wall of the connecting piece 130. The outer diameter of the connecting piece 130 is slightly larger than the inner diameter of the first accommodating cavity 121. When assembling, the connecting piece 130 is inserted into the first accommodating cavity 121, so that the inner wall of the first accommodating cavity 121 and the outer wall of the connecting piece 130 are in abutment.

[0120] In a possible implementation, the inner wall of the first accommodating cavity 121 is provided with a protrusion 1212 protruding inward, and the protrusion 1212 is used to abut against the axial tail end of the connecting piece 130. Referring to FIGS. 4 and 7, the inner wall of the first accommodating cavity 121 is provided with the protrusion 1212 extending from the inner wall of the first accommodating cavity 121 to the inside of the first accommodating cavity 121. The protrusion 1212 is located at the end of the main shaft 120 away from the ferrule base 110, and abuts against the axial tail end of the connecting piece 130, which can ensure that the connecting piece 130 is installed to the appropriate position and prevent the connecting piece 130 from sliding out of the first accommodating cavity 121 in the direction of X.

[0121] In a possible implementation, the optical fiber connector 100 further includes a first sealing ring 150 sleeved on the outer wall of the ferrule base 110. Referring to FIG. 4, the outer wall of the ferrule base 110 is provided with an accommodating groove for accommodating the first sealing ring 150, and the first sealing ring 150 is located in the accommodating groove. The inner wall surface of the first sealing ring 150 is in sealing connection with the outer wall surface of the ferrule base 110, and the outer wall surface of the first sealing ring 150 is in sealing connection with the inner wall surface of the main shaft 120. The gap between the ferrule base 110 and the main shaft 120 is sealed by the first sealing ring 150, preventing external substances such as dust and water vapor from entering.

[0122] In a possible implementation, referring to FIGS. 8 and 9, one of the ferrule base 110 and the connecting piece 130 has a connecting column 151, and the other of the ferrule base 110 and the connecting piece 130 is provided with a connecting hole 133 matched with the connecting column 151; the connecting piece 130 and the ferrule base 110 are connected through the matching of the connecting column 151 and the connecting hole 133.

[0123] In an embodiment, the connecting column 151 can be arranged on the ferrule base 110 as shown in FIG. 9, and the connecting hole 133 can be arranged on the connecting piece 130 as shown in FIG. 8. The connecting column 151 can be arranged in the connecting hole 133, and the connecting piece 130 and the ferrule base 110 can be connected through the matching of the connecting column 151 and the connecting hole 133. In this way, the separation of the connecting piece 130 and the ferrule base 110 can be avoided, which helps to improve the reliability and stability of the connection between the connecting piece 130 and the ferrule base 110, and improve the stability of the internal structure of the optical fiber connector 100.

[0124] The connecting piece 130 can be a hollow tubular structure, and the optical cable 140 can pass through the tubular structure. The optical cable 140 and the connecting piece 130 can be fixedly connected through a glue filling manner, and the connecting piece 130 can be a glue filling sleeve.

[0125] In a possible implementation, referring to FIGS. 17-20, the tube-pushing pulling member 200 is used to connect with the pulling rope, and the tube-pushing pulling member 200 is used to pull the fiber connector 100 to push the tube. The tube-pushing pulling member 200 is provided with an opening for connecting with the pulling rope, and the pulling rope is connected to the tube-pushing pulling member 200 through the opening. In the implementation, the opening for connecting with the pulling rope is located at the axial front end of the tube-pushing pulling member 200, and in other possible embodiments, the opening for connecting with the pulling rope can also be located at other positions of the tube-pushing pulling member 200. The tube-pushing pulling member 200 is sleeved outside the ferrule base 110, and the fifth connecting structure 111 is arranged on the outer wall of the ferrule base 110 and used to connect the ferrule base 110 and the tube-pushing pulling member 200. The tube-pushing pulling member 200 includes a pulling sleeve 210, the pulling sleeve 210 has a second accommodating cavity 211 penetrating in the axial direction, the axial front end of the main shaft 120 is inserted into the second accommodating cavity 211, the sixth connecting structure 212 is arranged on the inner wall of the second accommodating cavity 211, and the fifth connecting structure 111 and the sixth connecting structure 212 are detachably connected.

[0126] Referring to FIGS. 19 and 20, the tube-pushing pulling member 200 includes the pulling sleeve 210, the pulling sleeve 210 has the second accommodating cavity 211 penetrating in the axial direction, and the ferrule base 110 is located in the second accommodating cavity 211. The tube-pushing pulling member 200 is sleeved outside the ferrule base 110, the sixth connecting structure 212 is arranged on the inner wall of the second accommodating cavity 211, the fifth connecting structure 111 is arranged on the outer wall of the ferrule base 110, the fifth connecting structure 111 and the sixth connecting structure 212 are detachably connected, the ferrule base 110 and the tube-pushing pulling member 200 are connected through the cooperation between the fifth connecting structure 111 and the sixth connecting structure 212, the ferrule base 110 and the tube-pushing pulling member 200 are detachably connected, the fiber 300 is connected with the ferrule base 110, the ferrule base 110 is connected with the tube-pushing pulling member 200 during the tube pushing, the tube-pushing pulling member 200 drives the ferrule base 110 and the fiber 300 to pass through the fiber pipeline through the action of the pulling rope, and after the tube pushing of the fiber 300 is completed, the ferrule base 110 can be separated from the tube-pushing pulling member 200. In the implementation, the ferrule base 110 is completely located in the second accommodating cavity 211 of the pulling sleeve 210, and in other possible embodiments, the ferrule base 110 can be partially located in the second accommodating cavity 211 of the pulling sleeve 210, and the part of the ferrule base 110 located on the X opposite side of the fifth connecting structure 111 can be located outside the second accommodating cavity 211 of the pulling sleeve 210.

[0127] In a possible implementation, the tube-pushing pulling member 200 further includes a pulling cap 220, the pulling cap 220 is arranged at the axial front end of the pulling sleeve 210, and the pulling cap 220 is used to be fixedly connected with the pulling rope.

[0128] Referring to FIGS. 20 and 21, the tube-through pulling member 200 further comprises a pulling cap 220 connected with the pulling sleeve 210, the pulling cap 220 is arranged at one end of the pulling sleeve 210 in the positive direction of the X axis, the ferrule base 110 is arranged in the pulling sleeve 210 in the X direction, and the pulling cap 220, the pulling sleeve 210 and the ferrule base 110 are arranged in sequence. The pulling cap 220 is provided with an opening for connecting with the pulling rope, the pulling rope is connected with the pulling cap 220 through the opening, and in the embodiment of the present application, the opening for connecting with the pulling rope is located at the end of the pulling cap 220 away from the pulling sleeve 210. Of course, in other possible embodiments, the opening for connecting with the pulling rope can also be located at other positions of the pulling cap 220. Alternatively, in some other possible embodiments, the pulling cap 220 can also be connected with the pulling rope through clamping, threaded connection or other fixing modes, and the present application does not make specific limitation on the connection mode between the pulling rope and the pulling cap 220, and those skilled in the art can connect the pulling rope and the pulling cap 220 according to the requirements. The pulling cap 220 can be made of metal material, the pulling cap 220 made of metal material has good tensile strength and wear resistance, and can adapt to the pulling requirements in different environments. The pulling rope drives the pulling sleeve 210 to move through the pulling cap 220, and then drives the fiber connector 100 to move, thereby completing the tube-through. In addition, the pulling cap 220 can also play a certain buffering and protection role, so as to avoid damage to the fiber connector 100 during pulling.

[0129] In a possible embodiment, the axial front end of the pulling sleeve 210 is provided with an inwardly-retracted edge 213, the pulling cap 220 comprises a pulling part 221 and a fixing part 222, the pulling part 221 and the fixing part 222 are fixedly connected or in an integrated structure, the fixing part 222 is partially located in the second accommodating cavity 211 and abuts against the inwardly-retracted edge 213 in the axial direction, and the pulling part 221 is located at the axial front end of the pulling sleeve 210.

[0130] Referring to FIGS. 20-21, the axial front end of the pulling sleeve 210 is one end of the pulling sleeve 210 in the positive direction of X, and the axial front end of the pulling sleeve 210 is connected with the pulling cap 220. The pulling cap 220 includes a pulling part 221 and a fixing part 222, the pulling part 221 is used to be connected with the pulling rope, and the fixing part 222 is used to be connected with the pulling sleeve 210. The pulling part 221 and the fixing part 222 are fixedly connected or in an integrated structure, and when the pulling part 221 and the fixing part 222 are fixedly connected, they can be fixed together through threads, buckles or other mechanical connection methods to form an integral pulling cap 220. The structure of the fixedly connected pulling part 221 and the fixing part 222 can facilitate installation and disassembly, and improve the operation convenience. When the pulling part 221 and the fixing part 222 are in an integrated structure, the pulling part 221 and the fixing part 222 are integrally formed, which can further improve the overall strength and stability of the pulling cap 220 and reduce the stress concentration at the connection between the pulling part 221 and the fixing part 222.

[0131] The axial front end of the pulling sleeve 210 is provided with a radially inwardly recessed edge 213, which forms a stepped structure on the inner wall of the pulling sleeve 210, and the recessed edge 213 is used to limit the fixing part 222. The fixing part 222 is partially located in the second accommodating cavity 211 and abuts against the recessed edge 213 in the axial direction, and the fixing part 222 partially protrudes out of the second accommodating cavity 211. When the pulling rope drives the pulling cap 220 to pull the fiber connector 100 through the tube in the positive direction of X, the recessed edge 213 abuts against the fixing part 222 in the axial direction, which can limit the movement of the fixing part 222 in the positive direction of X, and prevent the pulling cap 220 from detaching from the pulling sleeve 210 due to the pulling force or external force during the tube-pulling process.

[0132] In a possible implementation, the fixing part 222 and the pulling sleeve 210 are rotationally connected with the axial direction as the rotation axis. Referring to FIG. 21, the fixing part 222 and the pulling sleeve 210 are connected, and the fixing part 222 and the pulling sleeve 210 can relatively rotate around the axial direction. The fixing part 222 and the pulling sleeve 210 are rotationally connected in the axial direction, and the fixing part 222 and the pulling sleeve 210 can be relatively independently rotated and adjusted. When the pulling rope is used to pull the tube-pulling pulling member 200, the pulling rope rotates during the tube-pulling process, and the rotation of the pulling rope drives the fixing part 222 to rotate. The fixing part 222 and the pulling sleeve 210 are rotationally connected, and the pulling sleeve 210 can not rotate relative to the fixing part 222. Therefore, the fiber connector 100 also does not rotate, and the fiber connector 100 moves forward along the axial direction of the fiber tube under the action of the pulling force, rather than rotating with the pulling rope, which avoids unnecessary rotational stress from damaging the fiber connector 100 and makes the tube-pulling operation more smooth.

[0133] In a possible implementation, the traction part 221 has a first abutting surface 221a at the axial tail end side, the inner shrink rim 213 has a second abutting surface 213a at the axial front end side, and the tube-penetrating traction member 200 further comprises a snap spring 230, which is clamped between the first abutting surface 221a and the second abutting surface 213a to limit the axial movement of the traction part 221 relative to the traction sleeve 210.

[0134] Referring to FIGS. 21-22, the axial tail end of the traction part 221 is one end of the traction part 221 in the X-negative direction, which is close to the traction sleeve 210 and connected with the fixed part 222. The traction part 221 has a first abutting surface 221a at the axial tail end side, which faces the traction sleeve 210. The inner shrink rim 213 has a second abutting surface 213a at the axial front end side, which is one end of the inner shrink rim 213 in the X-positive direction, and faces the traction part 221. The tube-penetrating traction member 200 further comprises a snap spring 230, which has a through hole penetrating the snap spring 230 along the axial direction of the traction sleeve 210 and an opening along the circumferential direction of the traction sleeve 210. The traction part 221 is installed in the snap spring 230 through the opening, which is in contact with the traction part 221. The traction part 221 extrudes the opening in the radial direction to the inside of the snap spring 230, and enters the through hole. The inner wall surface of the snap spring 230 is in contact with the outer wall surface of the traction part 221, and the snap spring 230 is fixed on the traction part 221. The snap spring 230 is specifically located between the first abutting surface 221a and the second abutting surface 213a. The traction cap 220 is inserted into the traction sleeve 210 from the axial tail end of the traction sleeve 210, and the traction part 221 is located outside the traction sleeve 210 in the axial direction. When the traction part 221 moves in the axial tail end direction relative to the traction sleeve 210, the snap spring 230 is located between the first abutting surface 221a and the second abutting surface 213a. The side of the snap spring 230 facing the second abutting surface 213a abuts against the second abutting surface 213a, thereby limiting the traction part 221 from continuously moving in the X-negative direction relative to the traction sleeve 210 and preventing the traction part 221 from entering the traction sleeve 210 to damage the fiber connector 100.

[0135] In a possible implementation, referring to FIG. 20, the tube-pushing pulling member 200 further comprises a fourth sealing ring 240, which is arranged between the pulling sleeve 210 and the fixed portion 222. The fourth sealing ring 240 is sleeved on the fixed portion 222, and the fourth sealing ring 240 can be sleeved on any position of the fixed portion 222. The number of the fourth sealing ring 240 can be at least one. When the number of the fourth sealing ring 240 is greater than one, the fourth sealing rings 240 arranged on the fixed portion 222 are arranged in the axial direction. The inner wall surface of the fourth sealing ring 240 is connected with the outer wall surface of the fixed portion 222, and the outer wall surface of the fourth sealing ring 240 is connected with the inner wall surface of the pulling sleeve 210. The fourth sealing ring 240 is used to form a seal between the pulling sleeve 210 and the fixed portion 222, which helps to prevent external substances such as dust and water vapor from entering the inside of the fiber optic connector 100, thereby protecting the fiber optic connector 100 from the external environment.

[0136] In a possible implementation, the fifth connecting structure 111 comprises a third thread 111a arranged on the outer wall of the ferrule base 110, and the sixth connecting structure 212 comprises a fourth thread 212a arranged on the inner wall of the pulling sleeve 210. The third thread 111a and the fourth thread 212a are connected in a matched manner.

[0137] Referring to FIGS. 18 and 21, the third thread 111a on the outer wall of the ferrule base 110 and the fourth thread 212a on the inner wall of the pulling sleeve 210 are matched. When the fiber optic connector 100 is pushed through the tube, the ferrule base 110 and the tube-pushing pulling member 200 are fixedly connected through the matched connection of the third thread 111a on the outer wall of the ferrule base 110 and the fourth thread 212a on the inner wall of the pulling sleeve 210. The tube-pushing pulling member 200 is driven by the pulling rope to complete the pushing of the fiber optic connector 100 through the tube. After the fiber optic connector 100 is pushed through the tube, the third thread 111a and the fourth thread 212a are disengaged to separate the ferrule base 110 and the tube-pushing pulling member 200. Through the matched connection of the third thread 111a and the fourth thread 212a, a stable connection can be formed between the ferrule base 110 and the pulling sleeve 210. The matched connection has strong bearing capacity and tensile resistance, and can withstand a large pulling force, thereby ensuring that the fiber optic connector 100 and the tube-pushing pulling member 200 are not loose or detached during the pushing of the fiber optic connector 100 through the tube.

[0138] In a possible implementation, the fiber optic connector 100 further comprises a ferrule 170, which is fixed to the axial front end of the ferrule base 110 and partially located in the second accommodating cavity 211. The ferrule 170 is used to connect the optical fiber 300.

[0139] Referring to Fig. 18, the fiber connector 100 further comprises a ferrule 170 connected with the optical fiber 300 for fixing the optical fiber 300 and realizing physical butt joint of two end faces of the optical fiber 300 so that the optical signal can continuously form an optical path. The present application takes a ceramic ferrule as an example for description, and the structure of other types of ferrules, such as a glass ferrule and a metal ferrule, is similar to that of the ceramic ferrule. The ferrule 170 is fixedly connected with the ferrule base 110, the ferrule 170 is fixed at the axial front end of the ferrule base 110 and partially located in the second accommodating cavity 211, and the optical fiber part in the ferrule base 110 is inserted into the ferrule 170 and connected with the ferrule 170. The fifth connecting structure 111 is located on the ferrule base 110, and the fifth connecting structure 111 is located on the side opposite to the X direction at the fixed connection position of the ferrule 170 and the ferrule base 110. During the pulling process of the fiber connector 100, the pulling force acts on the fifth connecting structure 111 through the tube pulling member 200, the fifth connecting structure 111 is located on the side opposite to the X direction at the fixed connection position of the ferrule 170 and the ferrule base 110, and the fifth connecting structure 111 is located on the ferrule base 110, so that the pulling force drives the ferrule base 110 to move instead of driving the ferrule 170 to move, and it can be ensured that the connection between the ferrule and the ferrule base is not affected during the pulling process.

[0140] In a possible implementation, the fiber connector 100 comprises a ferrule base 110, a main shaft 120, an outer frame sleeve 160, a dustproof sleeve 180, a ferrule 170 and an elastic member 190, the outer frame sleeve 160 is sleeved outside the ferrule 170, the ferrule 170 is fixedly provided with an optical fiber 300, the axial tail end of the ferrule 170 is inserted into the axial front end of the ferrule base 110, the elastic member 190 is arranged between the ferrule 170 and the ferrule base 110, and the dustproof sleeve 180 is sleeved outside the ferrule 170 and fixedly connected with the ferrule base 110.

[0141] Referring to FIG. 5, the fiber connector 100 comprises a ferrule base 110, the fiber 300 is fixed in the ferrule base 110, the ferrule 170 is fixedly connected with the axial front end of the ferrule base 110, the axial tail end of the ferrule 170 is inserted into the axial front end of the ferrule base 110, the ferrule base 110 is detachably connected with the main shaft 120, and the end of the ferrule base 110 away from the ferrule 170 is located inside the main shaft 120. The elastic member 190 is arranged between the ferrule 170 and the ferrule base 110, and the two ends of the elastic member 190 in the axial direction are respectively in abutment with the protrusions on the outer wall surface of the ferrule 170 and the protrusions on the inner wall surface of the ferrule base 110. When two fiber connectors 100 are connected with each other through the adapter 20 at the two ends of the adapter 20, the adapter 20 is in abutment with the ferrule 170 and generates a mutual acting force, the elastic member 190 is in a compressed state, the elastic member in the compressed state applies an elastic force to the ferrule 170, so that the ferrule 170 has sufficient elastic force to keep tight abutment with another ferrule 170. In the embodiment, the elastic member 190 can be a spring, and the spring is sleeved on the end of the ferrule 170 connected with the ferrule base 110. The dustproof sleeve 180 is sleeved outside the ferrule 170 and is fixedly connected with the ferrule base 110, and the dustproof sleeve 180 and the ferrule base 110 can be fixedly connected through buckle clamping. Of course, the dustproof sleeve 180 can also be fixedly connected with the ferrule base 110 through other fixed connection modes. The dustproof sleeve 180 has an accommodating cavity inside, the dustproof sleeve 180 is sleeved outside the ferrule 170, after the dustproof sleeve 180 is fixedly connected with the ferrule base 110, the ferrule 170 is located in the space enclosed by the dustproof sleeve 180 and the ferrule base 110, and the dustproof sleeve 180 is used for protecting the ferrule 170.

[0142] In a possible implementation, the fiber connector 100 further comprises a protection tube 500 and a tail sheath 600, the protection tube 500 is located at the axial tail end of the fiber connector 100, and the tail sheath 600 is sleeved outside the protection tube 500 and partially located at the axial tail end of the protection tube 500.

[0143] Referring to FIGS. 1 and 2, the protection tube 500 is located at the axial tail end of the fiber connector 100, the protection tube 500 is sleeved outside the fiber 300 and connected with the axial tail end of the sleeve 410. In the embodiment, the protection tube 500 is arranged at the rear end of the fiber 300, and the protection tube 500 plays a role of insulating protection for the fiber 300. Exemplarily, the material of the protection tube 500 can be polyethylene.

[0144] The tail sheath 600 is sleeved outside the protection tube 500 and partially located at the axial tail end of the protection tube 500. The axial front end of the tail sheath 600 can be provided with a fifth thread, and the axial tail end of the sleeve 410 can be provided with a sixth thread. In assembly, the tail sheath 600 is sleeved outside the protection tube 500, the axial tail end of the sleeve 410 is inserted into the axial front end of the tail sheath 600, and the sleeve 410 is connected through the cooperation of the threads.

[0145] The protection tube 500 is sleeved outside the optical fiber 300, and the tail sheath 600 is sleeved outside the protection tube 500. The protection tube 500 and the tail sheath 600 are both used for protecting the optical fiber 300. The optical fiber 300 has double-layer protection of the protection tube 500 and the tail sheath 600, and has better protection effect.

[0146] It can be understood that in a possible implementation, the application further provides an optical fiber connector 100. The main shaft 120 of the optical fiber connector 100 can be connected with the tube-penetrating traction member 200 and the outdoor assembly 400 alternatively.

[0147] The application further provides a communication device, which comprises an adapter 20 connected with the optical fiber connector 100 of any of the above-mentioned embodiments. The communication device can be, but is not limited to, an optical distribution network (ODN) device such as a fiber access terminal (FAT) and a splitting and splicing closure (SSC). Taking the ODN device as an example, the ODN device is a cable network for providing an optical transmission channel between an optical line terminal (OLT) and an optical network unit (ONU). The ODN device can connect one optical line terminal device with multiple optical network unit devices to provide bidirectional transmission of optical signals.

[0148] The communication device is provided with an adapter 20, which is used to connect with the fiber connector 100. The fiber connector 100 can have different types. The adapter 20 can connect two different types of fiber connectors 100, so that the different types of fiber connectors 100 can be interconnected. The fiber connector 100 is connected with the adapter 20 after the fiber connector 100 is pulled through the tube by the tube pulling member 200. The fiber connector 100 is used to connect the optical fiber 300 to the communication device or other fiber connectors. The fiber connector 100 has a plug-in function, which can be easily connected or disconnected with the adapter 20. The fiber connector 100 realizes the butt joint of two optical fibers. Through the plug-in of the two fiber connectors 100 at both ends of the adapter 20, the connection and transmission of optical signals can be realized. FIG. 23 shows a communication device in an embodiment. The communication device includes an adapter 20. The adapter 20 can have multiple adapters 20. The fiber connector 100 can also have multiple fiber connectors 100. The fiber connector 100 has an optical fiber 300. In the outdoor environment, the multiple fiber connectors 100 are pulled through the tube and connected with the multiple adapters 20 through the outdoor assembly 400. In the indoor environment, the multiple adapters 20 are connected with other multiple fiber connectors 100, thereby realizing the conduction of optical signals.

[0149] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application. Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent features. The modifications or replacements do not change the essence of the corresponding technical solutions, and should be included in the protection scope of the present application.

Claims

1. An optical fiber connector (100) characterized by, The application relates to an optical fiber connector (100), which comprises the following components: a ferrule base (110); a connecting piece (130) fixed at the axial rear end of the ferrule base (110); an optical cable (140) arranged to pass through and be fixed in the connecting piece (130), one end of the optical cable (140) being connected with the ferrule base (110); a main shaft (120) sleeved outside the ferrule base (110) and the connecting piece (130), the main shaft (120) having a first accommodating cavity (121) penetrating in the axial direction, the tail end of the ferrule base (110) and the connecting piece (130) being connected with the main shaft (120) in the first accommodating cavity (121); an outdoor assembly (400) sleeved outside the main shaft (120).

2. The fiber optic connector (100) of claim 1, wherein, A first connecting structure (1211) is arranged on the inner wall of the first accommodating cavity (121), a second connecting structure (113) is arranged on the outer wall surface of the ferrule base (110), and the first connecting structure (1211) and the second connecting structure (113) are detachably connected.

3. The fiber optic connector (100) of claims 1 or 2, characterized in that, The inner wall of the first accommodating cavity (121) and the outer wall of the connecting piece (130) are in abutment.

4. The fiber optic connector (100) of claims 1 or 2, characterized in that, A boss (1212) protruding inward is arranged on the inner wall of the first accommodating cavity (121), and the boss (1212) is used for abutting against the axial tail end of the connecting piece (130).

5. The fiber optic connector (100) of claims 1 or 2, characterized in that, The optical fiber connector (100) further comprises a first sealing ring (150) sleeved on the outer wall of the ferrule base (110).

6. The fiber optic connector (100) of claims 1 or 2, wherein, One of the ferrule base (110) and the connecting piece (130) has a connecting column (151), and the other of the ferrule base (110) and the connecting piece (130) is provided with a connecting hole (133) matched with the connecting column (151); The connecting piece (130) and the ferrule base (110) are connected through the matching of the connecting column (151) and the connecting hole (133).

7. The fiber optic connector (100) of claims 1 or 2, wherein, The outdoor assembly (400) comprises a sleeve (410) sleeved outside the main shaft (120); A third connecting structure (411) is arranged on the sleeve (410), and a fourth connecting structure (131) is arranged on the main shaft (120), and the third connecting structure (411) and the fourth connecting structure (131) are detachably connected.

8. The fiber optic connector (100) of claim 7, wherein, The third connecting structure (411) comprises a first elastic buckle (411a) and / or a first clamping groove (411b), and the fourth connecting structure (131) comprises a second clamping groove (131a) and / or a second elastic buckle (131b) matched with the third connecting structure (411).

9. The fiber optic connector (100) of claim 8, wherein, The first elastic buckle (411a) and / or the first clamping groove (411b) has a first guide inclined surface (411c) inclined in a radial outward direction of the main shaft (120), and the second clamping groove (131a) and / or the second elastic buckle (131b) has a second guide inclined surface (122a) inclined in a radial outward direction of the main shaft (120), and the first guide inclined surface (411c) and the second guide inclined surface (122a) are coupled.

10. The fiber optic connector (100) of claim 7, wherein, The number of the third connecting structure (411) and the fourth connecting structure (131) is at least two, and the at least two third connecting structures (411) and the at least two fourth connecting structures (131) are arranged axially along the main shaft (120).

11. The fiber optic connector (100) of claim 7, wherein, The outdoor assembly (400) further comprises an external insert (420), a through hole (412) is arranged on the side wall of the sleeve (410), and the external insert (420) is fixed in the through hole (412) and protrudes from the inner wall of the sleeve (410), and the external insert (420) and the inner wall of the through hole (412) are in interference fit.

12. The fiber optic connector (100) of claim 7, wherein, A limiting groove (112) is arranged on the outer wall of the ferrule base (110), and a limiting protrusion (413) is arranged on the inner wall of the sleeve (410), and the limiting protrusion (413) is clamped in the limiting groove (112) to limit the relative rotation of the ferrule base (110) and the sleeve (410).

13. An optical fiber connector (100) characterized by, Comprise: A ferrule base (110); A connecting piece (130) fixed to the axial rear end of the ferrule base (110); An optical cable (140) arranged to pass through the connecting piece (130) and fixed in the connecting piece (130), one end of the optical cable (140) being connected to the ferrule base (110); A main shaft (120) sleeved outside the ferrule base (110) and the connecting piece (130), the main shaft (120) having a first accommodating cavity (121) penetrating in the axial direction inside the main shaft (120), the tail end of the ferrule base (110) and the connecting piece (130) being connected to the main shaft (120) in the first accommodating cavity (121); A pipe pulling member (200) sleeved outside the main shaft (120).

14. The fiber optic connector (100) of claim 13, wherein, A first connecting structure (1211) is arranged on the inner wall of the first accommodating cavity (121), and a second connecting structure (113) is arranged on the outer wall surface of the ferrule base (110), and the first connecting structure (1211) and the second connecting structure (113) are detachably connected.

15. The fiber optic connector (100) of claims 13 or 14, characterized in that, The inner wall of the first accommodating cavity (121) and the outer wall of the connecting piece (130) are in abutment.

16. The fiber optic connector (100) of claim 13 or 14, characterized in that, A boss (1212) protruding inwardly is arranged on the inner wall of the first accommodating cavity (121), and the boss (1212) is used to abut against the axial tail end of the connecting piece (130).

17. The fiber optic connector (100) of claim 13 or 14, characterized in that, The optical fiber connector (100) further comprises a first sealing ring (150) sleeved on the outer wall of the ferrule base (110).

18. The fiber optic connector (100) of claims 13 or 14, characterized in that, One of the ferrule base (110) and the connecting piece (130) is provided with a connecting column (151), and the other of the ferrule base (110) and the connecting piece (130) is provided with a connecting hole (133) matched with the connecting column (151). The connecting piece (130) is connected with the ferrule base (110) through the cooperation of the connecting column (151) and the connecting hole (133).

19. The fiber optic connector (100) of claims 13 or 14, characterized in that, The pipe penetrating pulling piece (200) is sleeved on the outer side of the ferrule base (110), and the outer wall of the ferrule base (110) is provided with a fifth connecting structure (111). The pipe penetrating pulling piece (200) comprises a pulling sleeve (210) having a second accommodating cavity (211) penetrating in the axial direction, and the ferrule base (110) is located in the second accommodating cavity (211), and a sixth connecting structure (212) is arranged on the inner wall of the second accommodating cavity (211), and the fifth connecting structure (111) and the sixth connecting structure (212) are detachably connected.

20. The fiber optic connector (100) of claim 19, wherein, The optical fiber connector further comprises a pulling rope, and the pipe penetrating pulling piece (200) further comprises a pulling cap (220) arranged at the axial front end of the pulling sleeve (210), and the pulling cap (220) is used for fixedly connecting with the pulling rope.

21. The fiber optic connector (100) of claim 20, wherein, The axial front end of the pulling sleeve (210) is provided with a retracted edge (213), the pulling cap (220) comprises a pulling part (221) and a fixing part (222), the pulling part (221) and the fixing part (222) are fixedly connected or in an integral structure, the fixing part (222) is partially located in the second accommodating cavity (211) and abuts against the retracted edge (213) in the axial direction, and the pulling part (221) is located at the axial front end of the pulling sleeve (210).

22. The fiber optic connector (100) of claim 21, wherein, The fixing part (222) and the pulling sleeve (210) are rotationally connected with the axial direction as the rotation shaft.

23. The fiber optic connector (100) of claims 21 or 22, characterized in that, The pulling part (221) has a first abutting surface (221a) on the axial tail end side, the axial front end side of the retracted edge (213) has a second abutting surface (213a), and the pipe penetrating pulling piece (200) further comprises a clamping spring (230) clamped between the first abutting surface (221a) and the second abutting surface (213a) to limit the movement of the pulling part (221) relative to the pulling sleeve (210) in the axial direction.

24. The fiber optic connector (100) of claim 19, wherein, The fifth connecting structure (111) comprises a third thread (111a) arranged on the outer wall of the ferrule base (110), the sixth connecting structure (212) comprises a fourth thread (212a) arranged on the inner wall of the pulling sleeve (210), and the third thread (111a) and the fourth thread (212a) are matched and connected.

25. The fiber optic connector (100) of claim 19, wherein, The fiber connector (100) further comprises a ferrule (170) fixed at an axial front end of the ferrule seat (110) and partially located in the second accommodating cavity (211), the ferrule (170) being used for connecting the optical fiber (300).

26. A communications device, characterized by comprising an adapter (20) connected with the fiber connector (100) of any one of claims 1-25.

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