Optical fiber connector and communication equipment

Abstract

The utility model discloses an optical fiber connector and communication equipment, and relates to the technical field of optical fiber connection. The connecting piece is fixed at the axial rear end of the insertion core base; the optical cable is configured to penetrate through the connecting piece and is fixed in the connecting piece, and one end of the optical cable is connected with the insertion core base; the main shaft is arranged on the outer sides of the insertion core base and the connecting piece in a sleeving mode, a first containing cavity penetrating in the axial direction is formed in the main shaft, and the tail end of the insertion core base and the connecting piece are connected with the main shaft in the first containing cavity; the outdoor assembly is arranged on the outer side of the main shaft in a sleeving mode. The optical fiber connector is provided with the main shaft, the main shaft can be connected with the insertion core base and can also be connected with other structures, and the main shaft has certain structural strength and can prevent the optical fiber connector from being damaged when the optical fiber connector is connected with communication equipment.

Description

Technical Field

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

[0002] With the development of communication technology, optical fiber transmission is increasingly used in access networks represented by fiber-to-the-home. In a fiber-to-the-home network, it is necessary to lay the fiber optic cable to each household on site and then connect it to the user terminal box of each household. In the construction of a fiber-to-the-home network, the ferrule base of the optical fiber connector is usually directly connected to other structures such as outdoor components, and the optical fiber connector is easily damaged during connection. Utility Model Content

[0003] The present application provides an optical fiber connector and a communication device, wherein a main shaft is arranged on the outside of a ferrule base, and the main shaft is used to connect to an outdoor component and the ferrule base respectively. The main shaft can fix the ferrule base and the connector, thereby preventing the optical fiber connector from being damaged during connection.

[0004] In a first aspect, the present application provides an optical fiber connector, comprising: a ferrule base; a connector fixed at the axial rear end of the ferrule base; an optical cable, arranged to pass through the connector and fixed in the connector, one end of the optical cable being connected to the ferrule base; a main shaft, sleeved on the outside of the ferrule base and the connector, the main shaft having a first accommodating cavity penetrating along the axial direction, the tail end of the ferrule base and the connector being connected to the main shaft in the first accommodating cavity; and an outdoor component, sleeved on the outside of the main shaft.

[0005] The optical fiber connector provided in the present application is provided with a main shaft, which can be connected to the core base and the outdoor component. When the optical fiber connector is connected to the communication equipment through the outdoor component, the external force applied by the outdoor component is not directly applied to the core base, but is transmitted to the main shaft and then to the core base through the main shaft. The main shaft has a certain structural strength and can prevent the optical fiber connector from being damaged when connected to the communication equipment.

[0006] In one possible implementation, a first connecting structure is provided on the inner wall of the first accommodating cavity, and a second connecting structure is provided on the outer wall surface of the core base. The first connecting structure and the second connecting structure are detachably connected, and the detachable connection can facilitate the assembly and replacement between the main shaft and the core base.

[0007] In a possible implementation, the inner wall of the first accommodating cavity abuts against the outer wall of the connecting member, which can prevent the connecting member from rotating in the first accommodating cavity, thereby preventing the optical cable from being twisted or broken.

[0008] In a possible implementation, a boss protruding inward is provided on the inner wall of the first accommodating cavity, and the boss is used to abut against the axial tail end of the connecting piece, thereby ensuring that the connecting piece is installed in a suitable position and preventing the connecting piece from slipping out of the first accommodating cavity.

[0009] In a possible implementation, the optical fiber connector further includes a first sealing ring, which 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 influence of the external environment.

[0010] In a possible implementation, one of the ferrule base and the connector has a connecting column, and the other of the ferrule base and the connector has a connecting hole that matches the connecting column; the connector and the ferrule base are connected through the matching of the connecting column and the connecting hole. The matching connection between the connecting column and the connecting hole can avoid separation between the connector and the ferrule base, help improve the reliability and stability of the connection between the connector and the ferrule base, and enhance the stability of the internal structure of the optical fiber connector.

[0011] In a possible implementation, the outdoor component includes a sleeve, which is sleeved on the outside of the main shaft; a third connection structure is provided on the sleeve, and a fourth connection structure is provided on the main shaft, and the third connection structure and the fourth connection structure are detachably connected. When the optical fiber connector and the optical fiber reach the user's communication equipment, the outdoor component is connected to the main shaft through the third connection structure and the fourth connection structure, and the optical fiber connector is connected to the communication equipment, simplifying the on-site assembly process. When maintenance or replacement of parts is required, the outdoor component and the main shaft can be separated, which improves the flexibility and efficiency of the installation and maintenance of the outdoor component.

[0012] In a possible implementation, the third connection structure includes a first spring buckle and / or a first slot, and the fourth connection structure includes a second slot and / or a second spring buckle that cooperate with the third connection structure. The first spring buckle and the second slot are snap-fitted and connected, and the first slot and the second spring buckle are snap-fitted and connected. The cooperation between the spring buckle and the slot makes the outdoor assembly and the main shaft easy, fast and flexible to install.

[0013] In a possible implementation, along the direction from the axial front end to the axial rear end of the optical fiber connector, the first spring buckle and / or the first card slot has a first guiding bevel inclined along the radial outward direction of the main shaft, and the second card slot and / or the second spring buckle has a second guiding bevel inclined along the radial outward direction of the main shaft, and the first guiding bevel and the second guiding bevel are coupled. The first guiding bevel and the second guiding bevel have a guiding function, which facilitates the outdoor component to be plugged into the main shaft along the direction from the axial front end to the axial rear end of the optical fiber connector.

[0014] In a possible implementation, the number of the third connection structure and the number of the fourth connection structure are both at least two, and the at least two third connection structures and the at least two fourth connection structures are spaced apart along the axial direction of the main shaft. The at least two third connection structures and the at least two fourth connection structures can be plugged in one-to-one, so that the plugging between the outdoor component and the main shaft is more secure and the plugging stability is improved.

[0015] In a possible implementation, the outdoor component further includes an external plug-in, a through hole is provided on the side wall of the sleeve, the external plug-in is fixed in the through hole and protrudes from the inner wall of the sleeve, and the external plug-in and the inner wall of the through hole are interference fit. When the outdoor component is plugged and connected to the main shaft, the external plug-in can slide relative to the main shaft, and the relative sliding of the external plug-in and the main shaft can reduce the friction between the two, thereby reducing the wear and damage to the sealing ring between the plug base and the sleeve. The interference fit can increase the bonding strength between the through hole and the external plug-in, and prevent the through hole and the external plug-in from loosening and sliding.

[0016] In one possible implementation, a limiting groove is provided on the outer wall of the ferrule base, and a limiting protrusion is provided on the inner wall of the sleeve. The limiting protrusion is snapped into the limiting groove to limit the relative rotation of the ferrule base and the sleeve, thereby avoiding damage to the optical fiber connector caused by relative rotation between the ferrule base and the sleeve during use.

[0017] In the second aspect, the present application also provides a fiber optic connector, comprising: a core base; a connecting piece fixed at the axial rear end of the core base; an optical cable, configured to pass through the connecting piece and fixed in the connecting piece, one end of the optical cable is connected to the core base; a main shaft, sleeved on the outside of the core base and the connecting piece, the main shaft has a first accommodating cavity penetrating along the axial direction, the tail end of the core base and the connecting piece are connected to the main shaft in the first accommodating cavity; a tube-threading traction piece, sleeved on the outside of the main shaft.

[0018] The fiber optic connector provided in the present application is provided with a main shaft, which can be connected to the core base and can also be located in the tube-threading traction piece. The tube-threading traction piece can assist the fiber optic connector to pass through the fiber optic pipe. When the fiber optic connector passes through the fiber optic pipe, the main shaft has a certain structural strength, which can prevent the fiber optic connector from being damaged when passing through the fiber optic pipe.

[0019] In a possible implementation, a first connection structure is provided on the inner wall of the first accommodating cavity, a second connection structure is provided on the outer wall of the ferrule base, and the first connection structure and the second connection structure are detachably connected. The detachable connection can facilitate assembly and replacement between the main shaft and the ferrule base.

[0020] In a possible implementation, the inner wall of the first accommodating cavity abuts against the outer wall of the connecting member, which can prevent the connecting member from rotating in the first accommodating cavity, thereby preventing the optical cable from being twisted or broken.

[0021] In a possible implementation, a boss protruding inward is provided on the inner wall of the first accommodating cavity, and the boss is used to abut against the axial tail end of the connecting piece, thereby ensuring that the connecting piece is installed in a suitable position and preventing the connecting piece from slipping out of the first accommodating cavity.

[0022] In a possible implementation, the optical fiber connector further includes a first sealing ring, which 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 influence of the external environment.

[0023] In a possible implementation, one of the ferrule base and the connector has a connecting column, and the other of the ferrule base and the connector has a connecting hole that matches the connecting column; the connector and the ferrule base are connected through the matching of the connecting column and the connecting hole. The matching connection between the connecting column and the connecting hole can avoid separation between the connector and the ferrule base, help improve the reliability and stability of the connection between the connector and the ferrule base, and enhance the stability of the internal structure of the optical fiber connector.

[0024] In a possible implementation, the tube-threading traction member is inserted into the outer side of the core insert base, and a fifth connecting structure is provided on the outer wall of the core insert base; the tube-threading traction member includes a traction sleeve, and the traction sleeve has a second accommodating cavity extending axially therethrough, the core insert base is located in the second accommodating cavity, and a sixth connecting structure is provided on the inner wall of the second accommodating cavity, and the fifth connecting structure and the sixth connecting structure are detachably connected.

[0025] The tube-threading traction piece is connected to the core plug base through the cooperation between the fifth connection structure and the sixth connection structure, so that the core plug base and the tube-threading traction piece are detachably connected, and the core plug base and the optical fiber can complete the tube-threading of the optical fiber connector through the traction of the tube-threading traction piece and the traction rope to reach the user's communication equipment. When maintenance or replacement of parts is required, the tube-threading traction piece and the core plug base can be separated, which improves the flexibility and efficiency of the installation and maintenance of the tube-threading traction piece. For example, the tube-threading traction piece is disassembled from the core plug base, the core plug base is assembled with the outdoor component, and the optical fiber connector is connected to the communication equipment through the outdoor component.

[0026] In a possible implementation, the tube-threading traction member further includes a traction cap, which is disposed at the axial front end of the traction sleeve and is used to be fixedly connected to the traction rope. The traction rope drives the traction sleeve to move through the traction cap, and then drives the optical fiber connector to move, thereby completing the tube threading. The traction cap can also play a certain buffering and protective role to prevent the optical fiber connector from being damaged during the pulling process.

[0027] In a possible implementation, the axial front end of the traction sleeve is provided with an inwardly contracted edge, the traction cap includes a traction portion and a fixing portion, the traction portion and the fixing portion are fixedly connected or in an integrated structure, the fixing portion is partially located in the second accommodating cavity and abuts against the inwardly contracted edge along the axial direction, and the traction portion is located at the axial front end of the traction sleeve. When the traction rope drives the traction cap to pull the optical fiber connector through the pipe, the inwardly contracted edge abuts against the fixing portion along the axial direction, and the movement of the fixing portion along the traction direction can be limited to prevent the traction cap from being separated from the traction sleeve due to traction or external force during the pipe-threading process.

[0028] In a possible implementation, the fixed part and the traction sleeve are rotatably connected with the axial direction as the rotation axis. When the traction rope is used to pull the pipe threading traction member, and the traction rope rotates during the pipe threading process, the rotation of the traction rope drives the fixed part to rotate, and the fixed part and the traction sleeve are rotatably connected, and the traction sleeve can be fixed relative to the fixed part. Therefore, the optical fiber connector does not rotate either. Under the action of the traction force, the optical fiber connector moves forward along the axial direction of the pipeline instead of rotating with the rotation of the traction rope, thereby avoiding unnecessary rotational stress from damaging the optical fiber connector and making the pipe threading operation smoother.

[0029] In a possible implementation, the traction part has a first abutment surface on one side of the axial tail end, and the axial front end side of the inwardly contracted edge has a second abutment surface, and the tube-penetrating traction member also includes a retaining spring, and the retaining spring is clamped between the first abutment surface and the second abutment surface to limit the traction part from moving in the axial direction relative to the traction sleeve. When the traction part moves in the axial tail end direction relative to the traction sleeve, the retaining spring is located between the first abutment surface and the second abutment surface, and the side of the retaining spring facing the second abutment surface abuts against the second abutment surface, thereby limiting the traction part from continuing to move in the axial tail end direction relative to the traction sleeve, and preventing the traction part from entering the traction sleeve to damage structures such as the ferrule or optical fiber.

[0030] In a possible implementation, the fifth connection structure includes a third thread disposed on the outer wall of the ferrule base, the sixth connection structure includes a fourth thread disposed on the inner wall of the traction sleeve, and the third thread and the fourth thread are connected in a mating manner. The threaded mating connection has a strong load-bearing capacity and tensile strength, and can withstand a large traction force, ensuring that the fiber optic connector will not loosen or fall off between the tube-threading traction member and the ferrule base during the tube-threading process.

[0031] In a possible implementation, the optical fiber connector further includes a ferrule, which is fixed at the axial front end of the ferrule base and partially located in the second accommodating cavity, and the ferrule is used to connect the optical fiber. During the pulling process of the optical fiber connector, the traction force acts on the fifth connection structure through the tube traction member, the ferrule is fixed at the axial front end of the ferrule base, the fifth connection structure is located at the axial rear end of the ferrule, and the fifth connection structure is located on the ferrule base, so that the traction force drives the ferrule base to move instead of driving the ferrule to move, which can ensure that the connection between the ferrule and the ferrule base is not affected during the pulling process.

[0032] In a third aspect, the present application provides a communication device, including an adapter, wherein the adapter is connected to any of the above-mentioned optical fiber connectors. By plugging two optical fiber connectors at both ends of the adapter, optical signal connection and transmission can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of the optical fiber connector provided in the embodiment of the present application;

[0034] Figure 2 This application provides Figure 1 Sectional view at AA in the middle;

[0035] Figure 3 It is a partial structural schematic diagram of the optical fiber connector provided in an embodiment of the present application;

[0036] Figure 4 This application provides Figure 3 Cross-section at the middle BB;

[0037] Figure 5 It is a partial structural exploded schematic diagram of the optical fiber connector provided in an embodiment of the present application;

[0038] Figure 6 It is a schematic diagram of the structure of the main shaft provided in the embodiment of the present application;

[0039] Figure 7 This application provides Figure 6 Sectional view at CC;

[0040] Figure 8It is a schematic diagram of the structure of the connecting piece provided in the embodiment of the present application;

[0041] Fig. 9 It is a structural schematic diagram of the ferrule base provided in this application;

[0042] Fig.10 It is a schematic diagram of the outdoor component structure provided by the implementation method of the present application;

[0043] Fig.11 It is an exploded schematic diagram of an outdoor component provided in an embodiment of the present application;

[0044] Fig.12 This application provides Fig.10 Sectional view at DD in the middle;

[0045] Fig.13 This application provides Figure 2 The enlarged view of point A in the middle;

[0046] Fig.14 This application provides Figure 1 Sectional view at AA in the middle;

[0047] Fig.15 This application provides Fig.14 The enlarged view of point B in the middle;

[0048] Fig.16 yes Figure 1 Sectional view at EE in the middle;

[0049] Fig.17 This is a schematic diagram of the structure of an optical fiber connector provided by another embodiment of the present application;

[0050] Fig.18 yes Fig.17 Cross-section at FF;

[0051] Fig.19 It is a schematic diagram of the structure of the pipe-threading traction member provided in the embodiment of the present application;

[0052] Fig. 20 yes Fig.19 Cross-section at mid-GG;

[0053] Fig.21 yes Fig. 20 Enlarged view of point C in the middle;

[0054] Fig. 22 It is an exploded schematic diagram of a pipe-penetrating traction member provided in an embodiment of the present application;

[0055] Fig.23 is a schematic diagram of a communication device provided in an embodiment of the present application;

[0056] Fig.24It is a schematic diagram of the locking cap structure provided in an embodiment of the present application. DETAILED DESCRIPTION

[0057] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0058] For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of the present application are explained and described below.

[0059] Pipelining: The process of threading the optical fiber cable through a pre-arranged optical fiber duct (usually a PVC tube or other suitable protective tube) when laying the optical fiber line.

[0060] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0061] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0062] It should be understood that the term "and / or" used in this article is only a description of the same field of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0063] The word "if" as used herein may be interpreted as "when" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when determining" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0064] It should be understood that the terms “first”, “second”, etc. used in the present application are only used for the purpose of distinguishing the description, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0065] In the description of the present application, the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0066] When used in this application, “within the range of…”, unless it is separately specified that an end value is not included, it is assumed that both end values ​​of the range are included. For example, in the range of 1 to 5, the two values ​​1 and 5 are included.

[0067] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0068] With the development of communication technology, optical fiber transmission is increasingly used in fiber access (Fiber To The X, FTTx) systems. FFTx systems can be, but are not limited to, fiber to the home (Fiber To The Home, FFTH), fiber to the curb (Fiber To The Curb, FFTC), fiber to the premises (Fiber To The Premises, FTTP), fiber to the node (Fiber To The Node Or Neighborhood, FTTN), fiber to the office (Fiber To The Office, FTTO), and fiber to the service area (Fiber To The Servicearea, FTTSA). The optical fiber connector and communication equipment provided in this application are described by taking the application to the fiber to the home (Fiber To The Home, FTTH) system as an example.

[0069] In a fiber-to-the-home network, it is necessary to lay the fiber optic cable to each household on site and then connect it to the user terminal box of each household. Usually, the ferrule base of the optical fiber connector is directly connected to other structures such as outdoor components. When the optical fiber connector is connected to the communication equipment through the outdoor component, external force will be directly applied to the ferrule base, thereby causing damage to the ferrule and optical fiber.

[0070] The present application provides an optical fiber connector 100, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the optical fiber connector 100 includes a ferrule base 110, in which an optical fiber 300 is fixed. The ferrule base 110 is a hollow structure, and there is a channel running through the ferrule base 110 in the axial direction. The axial front end of the ferrule base 110 is connected to the ferrule 170, and the axial rear end of the ferrule base 110 is connected to the optical cable 140. When the optical cable 140 is assembled with the ferrule base 110, part of the outer shell of the optical cable 140 is stripped off to expose the optical fiber 300 inside. 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 fixed in the channel of the ferrule base 110. This part of the optical fiber 300 is used to connect with the ferrule 170. In the present application, the axial direction refers to the axial direction of the optical 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, axial rear end and axial tail end appearing below have the same meaning as here.

[0071] The connector 130 is fixed to the axial rear end of the ferrule base 110, and the connector 130 can be connected to the ferrule 170 through the ferrule base 110, and the optical cable 140 can pass through the ferrule base 110 and be connected to the ferrule 170. The ferrule base 110 can play a connecting role between the connector 130 and the ferrule 170, so that the optical cable 140, the connector 130 and the ferrule 170 can be assembled into an integral structure.

[0072] The optical cable 140 is configured to pass through the connector 130 and is fixed in the connector 130, and one end of the optical cable 140 is connected to the ferrule base 110. The optical cable 140 can be partially inserted into the connector 130 and fixedly connected to the inside of the connector 130. For example, the optical cable 140 and the connector 130 can be connected by bonding or other methods to improve the firmness and reliability of the connection between the optical cable 140 and the connector 130. The optical cable 140 may include a cable core and an outer sheath. The outer sheath may be sleeved on the cable core. For example, the outer sheath may be aramid. The outer sheath may protect the cable core to reduce or avoid the breakage of the optical cable 140, which helps to improve the tensile strength of the optical cable 140 and increase the service life of the optical cable 140. Among them, the connector 130 may be sleeved on the outer sheath and bonded to the outer sheath. In this way, the separation of the optical cable 140 and the connector 130 can be effectively reduced or avoided, and the firmness and reliability of the connection between the optical cable 140 and the connector 130 can be effectively improved.

[0073] One end of the optical cable 140 can be connected to the core base 110, and the optical fiber 300 is inserted into the channel of the core base 110 from the axial rear end of the core base 110 along the axial direction and fixed in the channel of the core base 110. For example, there can be multiple channels in the core base 110, and the optical cable 140 can include multiple optical fibers 300, and each optical fiber 300 can be respectively arranged in each channel.

[0074] The main shaft 120 is sleeved on the outer side of the ferrule base 110 and the connector 130. The main shaft 120 is fixed to the rear end of the ferrule base 110, and the optical fiber 300 passes through the main shaft 120. The connector 130 can be located inside the main shaft 120 and arranged close to the axial rear end of the main shaft 120. The connector 130 and the main shaft 120 can be coupled to each other. For example, a limiting structure can be provided on the connector 130 and the main shaft 120 respectively. The two limiting structures can cooperate with each other so that a limiting cooperation can be formed between the connector 130 and the main shaft 120, thereby realizing the coupling between the connector 130 and the main shaft 120. Figure 5 , Figure 6 and Figure 7 As shown, the spindle 120 may be a hollow structure, and the spindle 120 has a first accommodating cavity 121 that penetrates the spindle 120 in the axial direction. The first accommodating cavity 121 inside the spindle 120 is used to accommodate the ferrule base 110 and the connector 130. The tail end of the ferrule base 110 and the connector 130 are connected to the spindle 120 in the first accommodating cavity 121. In the embodiment of the present application, the spindle 120 may be a cylindrical structure, and the spindle 120 is sleeved on the outside of the axial tail end of the ferrule base 110. The spindle 120 is fixedly connected to 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 connector 130 is completely located in the first accommodating cavity 121. The spindle 120 can protect the part of the ferrule base 110 and the connector 130 located in the first accommodating cavity 121.

[0075] The outdoor component 400 is sleeved on the outside of the main shaft 120, and the outdoor component 400 is connected to the main shaft 120 to connect the optical fiber connector 100 and the communication equipment.

[0076] The optical fiber connector 100 provided in the present application is provided with a main shaft, and the main shaft 120 can be connected to the core base 110 and the outdoor component 400. When the optical fiber connector 100 is connected to the communication equipment through the outdoor component 400, the external force applied by the outdoor component 400 is not directly applied to the core base 110, but is transmitted to the main shaft 120 and then transmitted to the core base 110 through the main shaft 120. The main shaft 120 has a certain structural strength, which can prevent the optical fiber connector 100 from being damaged by external force when connected to the communication equipment.

[0077] In a possible implementation, a first connection structure 1211 is provided on the inner wall of the first accommodating cavity 121 , and a second connection structure 113 is provided on the outer wall of the ferrule base 110 . The first connection structure 1211 and the second connection structure 113 are detachably connected.

[0078] The first connection structure 1211 may be a first thread, and the second connection structure 113 may be a second thread. The first thread and the second thread are connected in cooperation, so that the first connection structure 1211 and the second connection structure 113 are detachably connected. Figure 5 , Figure 6 and Figure 7 As shown, a first thread is provided on the inner wall of the main shaft 120, and a second thread is provided on the outer wall of the ferrule base 110. The first thread of the main shaft 120 is threadedly connected with the second thread of the ferrule base 110, so that the main shaft 120 is fixed to the axial end of the ferrule base 110. The first connection structure 1211 and the second connection structure 113 are detachably connected, which can facilitate the assembly and replacement between the main shaft 120 and the ferrule base 110.

[0079] In a possible implementation manner, the inner wall of the first accommodating cavity 121 abuts against the outer wall of the connecting member 130. Figure 4 As shown, the connector 130 is located in the first accommodating cavity 121, and the inner wall of the first accommodating cavity 121 abuts against the outer wall of the connector 130 to prevent the connector 130 from rotating in the first accommodating cavity 121, thereby preventing the optical 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 connector 130 can be achieved in a variety of ways, for example, the inner wall of the first accommodating cavity 121 can be interference fit with the outer wall of the connector 130, the outer diameter of the connector 130 is slightly larger than the inner diameter of the first accommodating cavity 121, and the connector 130 is inserted into the first accommodating cavity 121 during assembly, so that the inner wall of the first accommodating cavity 121 and the outer wall of the connector 130 abut.

[0080] In a possible implementation manner, a boss 1212 protruding inward is provided on the inner wall of the first accommodating cavity 121, and the boss 1212 is used to abut against the axial rear end of the connecting member 130. Figure 4 and Figure 7 As shown, a boss 1212 is provided on the inner wall of the first accommodating cavity 121, and the boss 1212 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 the boss 1212 abuts against the axial tail end of the connector 130, which can ensure that the connector 130 is installed in a suitable position and prevent the connector 130 from sliding out of the first accommodating cavity 121 along the reverse direction of X.

[0081] In a possible implementation manner, the optical fiber connector 100 further includes a first sealing ring 150, and the first sealing ring 150 is sleeved on the outer wall of the ferrule base 110. Figure 4 As shown, a receiving groove for receiving the first sealing ring 150 is provided on the outer wall of the ferrule base 110, and the first sealing ring 150 is located in the receiving groove, and the inner wall surface of the first sealing ring 150 is sealedly connected to the outer wall surface of the ferrule base 110, and the outer wall surface of the first sealing ring 150 is sealedly connected to the inner wall surface of the main shaft 120. The first sealing ring 150 seals the gap between the ferrule base 110 and the main shaft 120 to prevent external substances such as dust and water vapor from entering.

[0082] In one possible implementation, see Figure 8 and Fig. 9 As shown, one of the ferrule base 110 and the connector 130 has a connecting column 151, and the other of the ferrule base 110 and the connector 130 has a connecting hole 133 that matches the connecting column 151; the connector 130 and the ferrule base 110 are connected through the matching of the connecting column 151 and the connecting hole 133.

[0083] In one embodiment, the connecting column 151 can be Fig. 9 As shown, the connection hole 133 is arranged on the ferrule base 110, and the connection hole 133 can be Figure 8 As shown in FIG. 1 , the connector 130 is provided with the connecting post 151. The connecting post 151 can be inserted into the connecting hole 133, and the connector 130 and the ferrule base 110 can be connected to each other through the cooperation between the connecting post 151 and the connecting hole 133. In this way, the connector 130 and the ferrule base 110 can be prevented from being separated, which helps to improve the reliability and stability of the connection between the connector 130 and the ferrule base 110, and improve the stability of the internal structure of the optical fiber connector 100.

[0084] The connector 130 may be a tubular structure with a hollow interior, with both ends of the tubular structure penetrated, and the optical cable 140 may pass through the tubular structure. The optical cable 140 and the connector 130 may be fixedly connected by glue pouring, and the connector 130 may be a glue pouring sleeve.

[0085] In a possible embodiment, an anti-rotation portion is further provided at one end of the connector 130 close to the ferrule base 110. The connector 130 has two anti-rotation portions, which are symmetrically arranged in the circumferential direction. The anti-rotation portions can abut against the ferrule base 110 so that an anti-rotation fit can be formed between the connector 130 and the ferrule base 110, thereby preventing the connector 130 from rotating relative to the ferrule base 110.

[0086] In a possible embodiment, the outdoor component 400 includes a sleeve 410, which is sleeved on the outside of the main shaft 120; a third connecting structure 411 is provided on the sleeve 410, and a fourth connecting structure 131 is provided on the main shaft 120, and the third connecting structure 411 and the fourth connecting structure 131 are detachably connected.

[0087] See also Fig.10 , Fig.11 and Fig.12 As shown, the outdoor component 400 includes a sleeve 410, which is sleeved on the outside of the main shaft. The sleeve 410 can be a hollow structure, and the interior of the sleeve 410 has a chamber that penetrates the sleeve 410 along 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 present application, the sleeve 410 can be a cylindrical structure, and the sleeve 410 is sleeved on the outside of the main shaft. One end of the main shaft 120 in the positive direction of X is located in the sleeve 410, and the end of the main shaft 120 in the negative direction of X is located outside the sleeve 410.

[0088] The sleeve 410 is provided with a third connection structure 411, and the main shaft 120 is provided with a fourth connection structure 131. The third connection structure 411 and the fourth connection structure 131 are detachably connected, and the main shaft 120 and the outdoor component 400 are detachably connected through the third connection structure 411 and the fourth connection structure 131. The detachable connection described in the present application is a connection method that can be manually disassembled and reassembled, and will not cause permanent damage to the connection parts during disassembly, and can be repeatedly disassembled and assembled. When the optical fiber connector 100 and the optical fiber 300 reach the user's communication equipment, the outdoor component 400 is connected to the main shaft 120 through the third connection structure 411 and the fourth connection structure 131, and the optical fiber connector 100 is connected to the communication equipment, simplifying the on-site assembly process. When maintenance or replacement of parts is required, the outdoor component 400 and the main shaft 120 can be separated, which improves the flexibility and efficiency of the installation and maintenance of the outdoor component 400 and the main shaft 120.

[0089] In a possible implementation, the third connection structure 411 includes a first spring buckle 411a and / or a first slot 411b, and the fourth connection structure 131 includes a second slot 131a and / or a second spring buckle 131b that cooperate with the third connection structure 411. The third connection structure 411 may be the first spring buckle 411a, and the fourth connection structure 131 may be the second slot 131a that cooperates with the third connection structure 411. Alternatively, the third connection structure 411 may be the first slot 411b, and the fourth connection structure 131 may be the second spring buckle 131b that cooperates with the third connection structure 411. Alternatively, the third connection structure 411 may be the first spring buckle 411a and the first slot 411b, and the fourth connection structure 131 may be the second slot 131a and the second spring buckle 131b that cooperate with the third connection structure 411.

[0090] In one embodiment, see Figure 2 and Fig.13 As shown, the third connection structure 411 may be a first spring buckle 411a, and the fourth connection structure 131 may be a second slot 131a matched with the third connection structure 411. When the outdoor component 400 is installed with the main shaft 120, the sleeve 410 of the outdoor component 400 is sleeved on one end of the main shaft 120 connected with the ferrule base 110, the inner wall of the sleeve 410 is provided with a first spring buckle 411a, the outer wall of the main shaft 120 is provided with a second slot 131a, the first spring buckle 411a and the second slot 131a match, the first spring buckle 411a is inserted into the second slot 131a, the first spring buckle 411a and the second slot 131a are engaged and fixed, so as to fix the outdoor component 400 with the main shaft 120.

[0091] In one embodiment, see Fig.14 and Fig.15 As shown, the third connection structure 411 may be a first slot 411b, and the fourth connection structure 131 may be a second snap button 131b matched with the third connection structure 411. When the outdoor component 400 is installed with the main shaft 120, the sleeve 410 of the outdoor component 400 is sleeved on one end of the main shaft 120 connected with the ferrule base 110, the inner wall of the sleeve 410 is provided with a first slot 411b, and the outer wall of the main shaft 120 is provided with a second snap button 131b, the first slot 411b and the second snap button 131b match, the second snap button 131b is inserted into the first slot 411b, and the second snap button 131b and the first slot 411b are engaged and fixed, so as to fix the outdoor component 400 with the main shaft 120.

[0092] In one embodiment, the third connection structure 411 may be a first spring buckle 411a and a first slot 411b, and the fourth connection structure 131 may be a second slot 131a and a second spring buckle 131b that cooperate with the third connection structure 411. At this time, the number of the third connection structure 411 and the fourth connection structure 131 is greater than one. When the outdoor component 400 is installed with the main shaft 120, the sleeve 410 of the outdoor component 400 is sleeved on one end of the main shaft 120 connected to the ferrule base 110, and the first spring buckle 411a and the first slot 411b are provided on the inner wall of the sleeve 410, and the second slot 131a and the second spring buckle 131b are provided on the outer wall of the main shaft 120. The first spring buckle 411a cooperates with the second slot 131a, the first slot 411b cooperates with the second spring buckle 131b, the first spring buckle 411a is inserted into the second slot 131a, the first spring buckle 411a and the second slot 131a are snap-fitted and fixed, the second spring buckle 131b is inserted into the first slot 411b, the second spring buckle 131b and the first slot 411b are snap-fitted and fixed, so as to fix the outdoor component 400 to the main shaft 120.

[0093] In a possible implementation, the inner wall of the sleeve 410 abuts against the outer wall of the main shaft 120. The main shaft 120 is located in the sleeve 410, and the inner wall of the sleeve 410 abuts against the outer wall of the main shaft 120 to prevent the main shaft 120 from rotating in the sleeve 410, thereby preventing the optical cable 140 from twisting or breaking. The abutment between the inner wall of the sleeve 410 and the outer wall of the main shaft 120 can be achieved in a variety of ways, for example, the inner wall of the sleeve 410 can be 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 abuts against the outer wall of the main shaft 120, thereby achieving a detachable connection between the outdoor component 400 and the main shaft 120.

[0094] In a possible embodiment, along the direction from the axial front end to the axial rear end of the optical fiber connector 100, the first spring buckle 411a and / or the first slot 411b have a first guide bevel 411c inclined in the radial outward direction of the main axis 120, and the second slot 131a and / or the second spring buckle 131b have a second guide bevel 122a inclined in the radial outward direction of the main axis 120, and the first guide bevel 411c and the second guide bevel 122a are coupled.

[0095] The third connection structure 411 may be a first spring buckle 411a, and the fourth connection structure 131 may be a second card slot 131a that cooperates with the third connection structure 411. The third connection structure 411 may be a first card slot 411b, and the fourth connection structure 131 may be a second spring buckle 131b that cooperates with the third connection structure 411. The third connection structure 411 may be a first spring buckle 411a and a first card slot 411b, and the fourth connection structure 131 may be a second card slot 131a and a second spring buckle 131b that cooperate with the third connection structure 411. The embodiment of the present application is described in detail by taking the third connection structure 411 as the first spring buckle 411a and the fourth connection structure 131 as the second card slot 131a as an example.

[0096] In one embodiment, see Fig.13 As shown, the third connection structure 411 may be a first spring buckle 411a, and the fourth connection structure 131 may be a second slot 131a matched with the third connection structure 411. Along the direction from the axial front end to the axial rear end of the optical fiber connector 100, the first spring buckle 411a has a first guide slope 411c inclined along the radial outward direction of the main shaft 120, and the second slot 131a has a second guide slope 122a inclined along the radial outward direction of the main shaft 120. When the outdoor component 400 is installed with the main shaft 120, the outdoor component 400 is connected with the main shaft 120 along the direction from the axial front end to the axial rear end of the optical fiber connector 100, and the first guide slope 411c and the second guide slope 122a are coupled to realize the snap connection of the first spring buckle 411a and the second slot 131a, so as to fix the outdoor component 400 with the main shaft 120. The first guiding bevel 411c and the second guiding bevel 122a have a guiding function, which facilitates the outdoor component 400 to be plugged into the main axis 120 of the optical fiber connector 100 along the direction from the axial front end to the axial rear end of the optical fiber connector 100.

[0097] In a possible implementation, the number of the third connection structure 411 and the number of the fourth connection structure 131 are both at least two, and the at least two third connection structures 411 and the at least two fourth connection structures 131 are both spaced apart along the axial direction of the main shaft 120. The number of the third connection structures 411 can be two or three or even more, and the number of the fourth connection structures 131 can be two or three or even more, and the number of the third connection structures 411 and the fourth connection structures 131 can be the same or different. The number of the third connection structures 411 and the fourth connection structures 131 are both at least two, and the at least two third connection structures 411 and the at least two fourth connection structures 131 are plugged in one-to-one, which can make the plug-in between the outdoor component 400 and the main shaft 120 more secure and improve the stability of the plug-in.

[0098] In one embodiment, the number of the third connecting structures 411 is two, the number of the fourth connecting structures 131 is also two, the two third connecting structures 411 are arranged on the sleeve 410 along the axial direction (X direction), and the two fourth connecting structures 131 are arranged on the main shaft 120 along the axial direction (X direction), the third connecting structures 411 and the fourth connecting structures 131 are detachably connected one to one, and the outdoor component 400 is plug-connected to the main shaft 120 of the optical fiber connector 100 along the reverse direction of X.

[0099] In a possible implementation, the outdoor component 400 further includes an external plug-in 420, a through hole 412 is provided on the side wall of the sleeve 410, the external plug-in 420 is fixed in the through hole 412 and protrudes from the inner wall of the sleeve 410, and the external plug-in 420 and the inner wall of the through hole 412 are interference fit.

[0100] See also Fig.11 and Fig.12 As shown, the sleeve 410 has a side wall arranged in the circumferential direction, and a through hole 412 is arranged on the side wall, and the through hole 412 penetrates the side wall in the radial direction of the sleeve 410. The outdoor component 400 also includes an external plug-in 420, which is fixed in the through hole 412 and protrudes from the inner wall of the sleeve 410. In the embodiment of the present application, there can be two through holes 412, and the two through holes 412 are symmetrically distributed on the side wall of the sleeve 410 in the circumferential direction. There are two external plug-ins 420, and the two external plug-ins 420 and the two through holes 412 are installed one to one, respectively. The external plug-in 420 is inserted into the through hole 412, and a part of the external plug-in 420 passes through the through hole 412 and protrudes from the inner wall of the sleeve 410 to reach the inside of the sleeve 410. When the outdoor component 400 is assembled with the main shaft 120, the main shaft 120 of the optical fiber connector 100 is located inside the sleeve 410 of the outdoor component 400. After the external plug-in 420 is inserted into the through hole 412, the external plug-in 420 protruding from the inner wall of the sleeve 410 contacts the main shaft 120. The external plug-in 420 may be in an arc-shaped structure, and the side of the external plug-in 420 close to the main shaft 120 is an arc surface, and the arc of the arc surface is the same as the arc of the side wall of the main shaft 120, which can better fit the side wall of the main shaft 120. When the outdoor component 400 is plugged and connected with the main shaft 120 of the optical fiber connector 100 in the opposite direction of X, the external plug-in 420 can slide relative to the main shaft 120. The relative sliding of the external plug-in 420 and the main shaft 120 can reduce the friction between the two, thereby reducing the wear and damage to the sealing ring between the ferrule base 110 and the sleeve 410.

[0101] The inner wall of the external plug-in 420 and the through hole 412 are interference fit. The inner wall of the through hole 412 and the outer wall of the external plug-in 420 are interference fit, and the inner wall of the through hole 412 is slightly larger than the outer wall of the external plug-in 420, so that a certain pressure is formed between the inner wall of the through hole 412 and the outer wall of the external plug-in 420. The interference fit between the inner wall of the through hole 412 and the outer wall of the external plug-in 420 can increase the bonding strength between the through hole 412 and the external plug-in 420, and prevent the through hole 412 and the external plug-in 420 from loosening and sliding.

[0102] In a possible implementation, a limiting groove 112 is provided on the outer wall of the ferrule base 110 , and a limiting protrusion 413 is provided on the inner wall of the sleeve 410 . The limiting protrusion 413 is snapped into the limiting groove 112 to limit the relative rotation of the ferrule base 110 and the sleeve 410 .

[0103] See also Fig. 9 and Fig.16 As shown, the ferrule base 110 is located inside the sleeve 410, and the sleeve 410 is sleeved on the outside of the ferrule base 110. A limiting groove 112 is provided on the outer wall of the ferrule base 110, and a limiting protrusion 413 is provided 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 restricted and cannot rotate, thereby avoiding the relative rotation between the ferrule base 110 and the sleeve 410 during use, which may cause damage to other structures of the optical fiber connector 100 and the optical fiber 300.

[0104] In a possible implementation manner, the outdoor component 400 further includes a locking cap 430, which is sleeved on the outer side of the sleeve 410. Fig.11 and Fig.12 As shown, the locking cap 430 can be a hollow columnar structure, and the locking cap 430 is sleeved on the outside of the sleeve 410. The locking cap 430 is sleeved on the outside of the sleeve 410, making it easier for technicians to hold the outdoor component 400 when installing, connecting or removing the communication equipment. The locking cap 430 can lock the optical fiber connector 100 to the adapter 20. In addition, the locking cap 430 can also be sleeved on the outside of the sleeve 410 to limit rotation. In one embodiment, refer to Fig.11 and Fig.24As shown, a limit block 431 may be provided on the inner wall of the locking cap 430, and the number of the limit blocks 431 may be two, and the two limit blocks 431 are arranged at intervals along the circumference of the locking cap 430. A limit column 414 may be provided on the outer wall of the sleeve 410, and the limit column 414 is located between the two limit blocks 431, so that the locking cap 430 can rotate relative to the sleeve 410 within the angle range defined by the two limit blocks 431. At least one locking block 432 is also provided on the inner wall of the locking cap 430, and the locking block 432 is used to cooperate with the locking groove on the adapter 20 for locking. The locking block 432 can also be used to cooperate with the locking groove on the dust cap 450 for locking, and the dust cap 450 can protect the optical fiber connector 100 when the optical fiber connector 100 is not plugged into the adapter 20. The locking groove on the adapter 20 may have the same structure as the locking groove 451 on the dust cap 450. The locking groove 451 may 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. The first locking portion 451a and the second sliding groove portion 451b are connected to each other. After the locking block 432 slides in through the second sliding groove portion 451b, it enters the first locking portion 451a. By rotating the locking cap 430, the locking block 432 is rotated to the locking position of the first locking portion 451a, so that the locking block 432 cooperates with the locking groove 451 to lock. When the locking cap 430 stays at any position within the angle range defined by the two limit blocks 431 relative to the sleeve 410 , the locking block 432 can be guided to the locking position of the locking groove 451 .

[0105] In a possible implementation manner, the outdoor component 400 further includes a second sealing ring 440, and the second sealing ring 440 is sealed between the locking cap 430 and the sleeve 410. Fig.12 As shown, the sleeve 410 and the locking cap 430 are sealed and connected, the second sealing ring 440 is sealed and 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 sealed and connected with the outer wall surface of the sleeve 410, and the outer wall surface of the second sealing ring 440 is sealed and connected with the inner wall surface of the locking cap 430, and the second sealing ring 440 is used to form an effective seal between the locking cap 430 and the sleeve 410. After the outdoor component 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 optical fiber connector 100, thereby protecting the optical fiber connector 100 from the influence of the external environment.

[0106] In a possible implementation, the outdoor component 400 further includes a dust cap 450, which is sleeved on the axial front end of the sleeve 410. Fig.12 As shown, the dust cap 450 is detachably connected to the locking cap 430 and covers the axial front end of the sleeve 410 , thereby protecting the optical fiber connector 100 and preventing dust and other impurities from entering the sleeve 410 and damaging the optical fiber connector 100 .

[0107] In a possible implementation, the axial rear end portion of the dust cap 450 is inserted into the locking cap 430, and the outdoor assembly 400 further includes a third sealing ring 460, which is sealed between the dust cap 450 and the locking cap 430. Fig.12 As shown, Fig.12 The dust cap 450 and the sleeve 410 are shown in a state where they are not covered, and the third sealing ring 460 is sleeved on the outer wall surface of the dust cap 450. The dust cap 450 has an accommodating cavity. When the dust cap 450 and the sleeve 410 are connected, the axial tail end portion of the dust cap 450 is inserted between the inner wall surface of the locking cap 430 and the outer wall surface of the sleeve 410, and the axial front end of the sleeve 410 is located in the accommodating cavity of the dust cap 450. The third sealing ring 460 is sleeved on the outer wall surface of the dust cap 450, and the inner wall surface of the third sealing ring 460 is sealedly connected to the outer wall surface of the dust cap 450, and the outer wall surface of the third sealing ring 460 is sealedly connected to the inner wall surface of the locking cap 430, thereby sealing the dust cap 450 and the locking cap 430 to prevent dust and other impurities from entering the sleeve 410 to damage the optical fiber connector 100.

[0108] In a possible implementation, the outdoor component 400 further includes a connecting rope 470, and the connecting rope 470 connects the sleeve 410 and the dust cap 450. Fig.11 and Fig.12 As shown, one end of the connecting rope 470 is sleeved on the sleeve 410 and connected to the sleeve 410. The sleeve 410 may be provided with a slot for connecting with the connecting rope 470. One end of the connecting rope 470 is sleeved in the slot and connected to the sleeve 410. The other end of the connecting rope 470 is connected to 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. The connecting rope 470 is tied to the connecting hole and connected to the dust cap 450. The dust cap 450 is connected to the sleeve 410 through the connecting rope 470. When the dust cap 450 and the sleeve 410 are in an uncovered state, the dust cap 450 can be connected to the sleeve 410 through the connecting rope 470 to prevent the dust cap 450 from being lost.

[0109] The present application also provides an optical fiber connector 100, see Fig.17 and Fig.18As shown, the optical fiber connector 100 includes a ferrule base 110, a main shaft 120, a connector 130, an optical cable 140, and a tube pulling member 200. An optical fiber 300 is fixed in the ferrule base 110. The ferrule base 110 is a hollow structure, and has a channel that penetrates the ferrule base 110 in the axial direction. The axial front end of the ferrule base 110 is connected to the ferrule 170, and the axial rear end of the ferrule base 110 is connected to the optical cable 140. When the optical cable 140 and the ferrule base 110 are assembled, part of the outer shell of the optical cable 140 is stripped off to expose the optical fiber 300 inside. 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 fixed in the channel of the ferrule base 110. This part of the optical fiber 300 is used to connect with the ferrule 170.

[0110] The connector 130 is fixed to the axial rear end of the ferrule base 110, and the connector 130 can be connected to the ferrule 170 through the ferrule base 110, and the optical cable 140 can pass through the ferrule base 110 and be connected to the ferrule 170. The ferrule base 110 can play a connecting role between the connector 130 and the ferrule 170, so that the optical cable 140, the connector 130 and the ferrule 170 can be assembled into an integral structure.

[0111] The optical cable 140 is configured to pass through the connector 130 and is fixed in the connector 130, and one end of the optical cable 140 is connected to the ferrule base 110. The optical cable 140 can be partially inserted into the connector 130 and fixedly connected to the inside of the connector 130. For example, the optical cable 140 and the connector 130 can be connected by bonding or other methods to improve the firmness and reliability of the connection between the optical cable 140 and the connector 130. The optical cable 140 may include a cable core and an outer sheath. The outer sheath may be sleeved on the cable core. For example, the outer sheath may be aramid. The outer sheath may protect the cable core to reduce or avoid the breakage of the optical cable 140, which helps to improve the tensile strength of the optical cable 140 and increase the service life of the optical cable 140. Among them, the connector 130 may be sleeved on the outer sheath and bonded to the outer sheath. In this way, the separation of the optical cable 140 and the connector 130 can be effectively reduced or avoided, and the firmness and reliability of the connection between the optical cable 140 and the connector 130 can be effectively improved.

[0112] One end of the optical cable 140 can be connected to the core base 110, and the optical fiber 300 is inserted into the channel of the core base 110 from the axial rear end of the core base 110 along the axial direction and fixed in the channel of the core base 110. For example, there can be multiple channels in the core base 110, and the optical cable 140 can include multiple optical fibers 300, and each optical fiber 300 can be respectively arranged in each channel.

[0113] The main shaft 120 is sleeved on the outer side of the ferrule base 110 and the connector 130; the main shaft 120 is fixed to the rear end of the ferrule base 110, and the optical fiber 300 passes through the main shaft 120. The connector 130 can be located inside the main shaft 120 and arranged close to the axial rear end of the main shaft 120. The connector 130 and the main shaft 120 can be coupled to each other. For example, a limiting structure can be provided on the connector 130 and the main shaft 120 respectively, and the two limiting structures can cooperate with each other so that a limiting fit can be formed between the connector 130 and the main shaft 120, thereby realizing the coupling between the connector 130 and the main shaft 120. Figure 5 , Figure 6 and Figure 7 As shown, the spindle 120 may be a hollow structure, and the spindle 120 has a first accommodating cavity 121 that penetrates the spindle 120 in the axial direction. The first accommodating cavity 121 inside the spindle 120 is used to accommodate the ferrule base 110 and the connector 130. The tail end of the ferrule base 110 and the connector 130 are connected to the spindle 120 in the first accommodating cavity 121. In the embodiment of the present application, the spindle 120 may be a cylindrical structure, and the spindle 120 is sleeved on the outside of the axial tail end of the ferrule base 110. The spindle 120 is fixedly connected to 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 connector 130 is completely located in the first accommodating cavity 121. The spindle 120 can protect the part of the ferrule base 110 and the connector 130 located in the first accommodating cavity 121.

[0114] The tube-penetrating traction member 200 is sleeved on the outer side of the main shaft 120 . The tube-penetrating traction member 200 is connected to the main shaft 120 and transmits the traction force to the optical fiber connector 100 through the main shaft, thereby pulling the optical fiber connector 100 through the optical fiber tube.

[0115] The optical fiber connector 100 provided in the present application is provided with a main shaft 120. The main shaft 120 can be connected to the core base 110 and can also be located in the tube pulling member 200. The tube pulling member 200 can assist the optical fiber connector 100 to pass through the optical fiber pipe. When the optical fiber connector 100 passes through the optical fiber pipe, the main shaft 120 has a certain structural strength, which can prevent the optical fiber connector 100 from being damaged when passing through the optical fiber pipe.

[0116] In a possible implementation, a first connection structure 1211 is provided on the inner wall of the first accommodating cavity 121 , and a second connection structure 113 is provided on the outer wall of the ferrule base 110 . The first connection structure 1211 and the second connection structure 113 are detachably connected.

[0117] The first connection structure 1211 may be a first thread, and the second connection structure 113 may be a second thread. The first thread and the second thread are connected in cooperation, so that the first connection structure 1211 and the second connection structure 113 are detachably connected. Figure 5 , Figure 6 and Figure 7 As shown, a first thread is provided on the inner wall of the main shaft 120, and a second thread is provided on the outer wall of the ferrule base 110. The first thread of the main shaft 120 is threadedly connected with the second thread of the ferrule base 110, so that the main shaft 120 is fixed to the axial end of the ferrule base 110. The first connection structure 1211 and the second connection structure 113 are detachably connected, which can facilitate the assembly and replacement between the main shaft 120 and the ferrule base 110.

[0118] In a possible implementation manner, the inner wall of the first accommodating cavity 121 abuts against the outer wall of the connecting member 130. Figure 4 As shown, the connector 130 is located in the first accommodating cavity 121, and the inner wall of the first accommodating cavity 121 abuts against the outer wall of the connector 130 to prevent the connector 130 from rotating in the first accommodating cavity 121, thereby preventing the optical 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 connector 130 can be achieved in a variety of ways, for example, the inner wall of the first accommodating cavity 121 can be interference fit with the outer wall of the connector 130, the outer diameter of the connector 130 is slightly larger than the inner diameter of the first accommodating cavity 121, and the connector 130 is inserted into the first accommodating cavity 121 during assembly, so that the inner wall of the first accommodating cavity 121 and the outer wall of the connector 130 abut.

[0119] In a possible implementation manner, a boss 1212 protruding inward is provided on the inner wall of the first accommodating cavity 121, and the boss 1212 is used to abut against the axial rear end of the connecting member 130. Figure 4 and Figure 7 As shown, a boss 1212 is provided on the inner wall of the first accommodating cavity 121, and the boss 1212 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 the boss 1212 abuts against the axial tail end of the connector 130, which can ensure that the connector 130 is installed in a suitable position and prevent the connector 130 from sliding out of the first accommodating cavity 121 along the reverse direction of X.

[0120] In a possible implementation manner, the optical fiber connector 100 further includes a first sealing ring 150, and the first sealing ring 150 is sleeved on the outer wall of the ferrule base 110. Figure 4As shown, a receiving groove for receiving the first sealing ring 150 is provided on the outer wall of the ferrule base 110, and the first sealing ring 150 is located in the receiving groove, and the inner wall surface of the first sealing ring 150 is sealedly connected to the outer wall surface of the ferrule base 110, and the outer wall surface of the first sealing ring 150 is sealedly connected to the inner wall surface of the main shaft 120. The first sealing ring 150 seals the gap between the ferrule base 110 and the main shaft 120 to prevent external substances such as dust and water vapor from entering.

[0121] In one possible implementation, see Figure 8 and Fig. 9 As shown, one of the ferrule base 110 and the connector 130 has a connecting column 151, and the other of the ferrule base 110 and the connector 130 has a connecting hole 133 that matches the connecting column 151; the connector 130 and the ferrule base 110 are connected through the matching of the connecting column 151 and the connecting hole 133.

[0122] In one embodiment, the connecting column 151 can be Fig. 9 As shown, the connection hole 133 is arranged on the ferrule base 110, and the connection hole 133 can be Figure 8 As shown in FIG. 1 , the connector 130 is provided with the connecting post 151. The connecting post 151 can be inserted into the connecting hole 133, and the connector 130 and the ferrule base 110 can be connected to each other through the cooperation between the connecting post 151 and the connecting hole 133. In this way, the connector 130 and the ferrule base 110 can be prevented from being separated, which helps to improve the reliability and stability of the connection between the connector 130 and the ferrule base 110, and improve the stability of the internal structure of the optical fiber connector 100.

[0123] The connector 130 may be a tubular structure with a hollow interior, with both ends of the tubular structure penetrated, and the optical cable 140 may pass through the tubular structure. The optical cable 140 and the connector 130 may be fixedly connected by glue pouring, and the connector 130 may be a glue pouring sleeve.

[0124] In one possible implementation, see Figures 17 to 20As shown, the tube-threading traction member 200 is used to connect with the traction rope, and the tube-threading traction member 200 is used to pull the optical fiber connector 100 to thread the tube. The tube-threading traction member 200 is provided with an opening for connecting with the traction rope, and the traction rope passes through the opening and is connected to the tube-threading traction member 200. In the embodiment of the present application, the opening connected with the traction rope is located at the axial front end of the tube-threading traction member 200. Of course, in other possible embodiments, the opening connected with the traction rope can also be located at other positions of the tube-threading traction member 200. The tube-threading traction member 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 connection structure 111, and the fifth connection structure 111 is used to connect the ferrule base 110 and the tube-threading traction member 200. The tube-penetrating traction member 200 includes a traction sleeve 210, which has a second accommodating cavity 211 extending axially therethrough. The axial front end of the main shaft 120 is inserted into the second accommodating cavity 211. A sixth connecting structure 212 is provided on the inner wall of the second accommodating cavity 211. The fifth connecting structure 111 and the sixth connecting structure 212 are detachably connected.

[0125] See also Fig.19 and Fig. 20 As shown, the tube-penetrating traction member 200 includes a traction sleeve 210 , and the traction sleeve 210 has a second accommodating cavity 211 penetrating along the axial direction, and the ferrule base 110 is located in the second accommodating cavity 211 . The traction sleeve 210 is sleeved on the outer side of the core base 110, and a sixth connecting structure 212 is arranged on the inner wall of the second accommodating cavity 211, and a fifth connecting structure 111 is arranged on the outer wall of the core base 110. The fifth connecting structure 111 and the sixth connecting structure 212 are detachably connected. The core base 110 and the tube-threading traction member 200 are connected by the cooperation between the fifth connecting structure 111 and the sixth connecting structure 212, so that the core base 110 and the tube-threading traction member 200 are detachably connected, and the optical fiber 300 is connected to the core base 110. The core base 110 is connected to the tube-threading traction member 200 when threading the tube. The tube-threading traction member 200 drives the core base 110 and the optical fiber 300 to pass through the optical fiber pipe through the action of the traction rope. After the optical fiber 300 is threaded through the tube, the core base 110 can be disassembled from the tube-threading traction member 200. In the embodiment of the present application, the core base 110 is completely located in the second accommodating cavity 211 of the traction sleeve 210. Of course, in other possible embodiments, the core base 110 can be partially located in the second accommodating cavity 211 of the traction sleeve 210, and the part of the core 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 traction sleeve 210.

[0126] In a possible implementation, the tube-penetrating traction member 200 further includes a traction cap 220 . The traction cap 220 is disposed at the axial front end of the traction sleeve 210 . The traction cap 220 is used to be fixedly connected to the traction rope.

[0127] See also Fig. 20 and Fig.21 As shown, the tube-threading traction member 200 also includes a traction cap 220, which is connected to the traction sleeve 210. The traction cap 220 is arranged at one end of the traction sleeve 210 along the positive direction of X, and the ferrule base 110 is arranged in the traction sleeve 210. Along the X direction, the traction cap 220, the traction sleeve 210 and the ferrule base 110 are arranged in sequence. The traction cap 220 is provided with an opening for connecting with a traction rope, and the traction rope passes through the opening and is connected to the traction cap 220. In the embodiment of the present application, the opening connected with the traction rope is located at one end of the traction cap 220 away from the traction sleeve 210. Of course, in other possible embodiments, the opening connected with the traction rope can also be located at other positions of the traction cap 220. Alternatively, in some other possible embodiments, the traction cap 220 can also be connected to the traction rope by snap connection, threaded connection or other fixing methods. The present application does not specifically limit the connection method between the traction rope and the traction cap 220. Those skilled in the art can connect the traction rope and the traction cap 220 according to needs. The traction cap 220 can be made of metal material. The traction cap 220 made of metal material has good tensile strength and wear resistance, and can adapt to the traction requirements in different environments. The traction rope drives the traction sleeve 210 to move through the traction cap 220, and then drives the optical fiber connector 100 to move to complete the pipe threading. In addition, the traction cap 220 can also play a certain buffering and protective role to prevent the optical fiber connector 100 from being damaged during the pulling process.

[0128] In a possible embodiment, the axial front end of the traction sleeve 210 is provided with an inward-retracted edge 213, and the traction cap 220 includes a traction portion 221 and a fixing portion 222. The traction portion 221 and the fixing portion 222 are fixedly connected or form an integrated structure. The fixing portion 222 is partially located in the second accommodating cavity 211 and abuts against the inward-retracted edge 213 along the axial direction. The traction portion 221 is located at the axial front end of the traction sleeve 210.

[0129] See also Figure 20 to Figure 21As shown, the axial front end of the traction sleeve 210 is one end of the traction sleeve 210 in the positive direction of X, and the axial front end of the traction sleeve 210 is connected to the traction cap 220. The traction cap 220 includes a traction portion 221 and a fixing portion 222, the traction portion 221 is used to connect with the traction rope, and the fixing portion 222 is used to connect with the traction sleeve 210. The traction portion 221 and the fixing portion 222 are fixedly connected or in an integrated structure. When the traction portion 221 and the fixing portion 222 are fixedly connected, they can be fixed together by threads, buckles or other mechanical connection methods to form an integral traction cap 220. The structure of the fixedly connected traction portion 221 and the fixing portion 222 can be easily installed and disassembled, and improves the convenience of operation. When the traction portion 221 and the fixing portion 222 are in an integrated structure, the traction portion 221 and the fixing portion 222 are integrally formed, which can further improve the overall strength and stability of the traction cap 220 and reduce the stress concentration at the connection between the traction portion 221 and the fixing portion 222.

[0130] The axial front end of the traction sleeve 210 is provided with a radially inwardly contracted edge 213, and the contracted edge 213 forms a step structure on the inner wall of the traction sleeve 210, and the contracted edge 213 is used to limit the fixing portion 222. The fixing portion 222 is partially located in the second accommodating cavity 211 and abuts against the contracted edge 213 along the axial direction, and the fixing portion 222 partially protrudes outside the second accommodating cavity 211. When the traction rope drives the traction cap 220 to pull the optical fiber connector 100 through the pipe along the positive direction of X, the contracted edge 213 abuts against the fixing portion 222 along the axial direction, and the movement of the fixing portion 222 along the positive direction of X can be limited, so as to prevent the traction cap 220 from being separated from the traction sleeve 210 due to traction or external force during the pipe-threading process.

[0131] In a possible implementation manner, the fixing portion 222 and the traction sleeve 210 are rotatably connected with the axial direction as the rotation axis. Fig.21 As shown, the fixing portion 222 and the traction sleeve 210 are connected, and the fixing portion 222 and the traction sleeve 210 can rotate relative to each other around the axial direction. The fixing portion 222 and the traction sleeve 210 are connected in rotation along the axial direction, and the fixing portion 222 and the traction sleeve 210 can be relatively independently rotated and adjusted. When the traction rope is used to pull the pipe threading traction member 200, when the traction rope rotates during the pipe threading process, the rotation of the traction rope drives the fixing portion 222 to rotate, and the fixing portion 222 and the traction sleeve 210 are connected in rotation, and the traction sleeve 210 can not rotate relative to the fixing portion 222. Therefore, the optical fiber connector 100 does not rotate either. The optical fiber connector 100 moves forward along the axial direction of the optical fiber pipe under the action of the traction force, instead of rotating with the rotation of the traction rope, thereby avoiding unnecessary rotational stress from damaging the optical fiber connector 100, making the pipe threading operation smoother.

[0132] In a possible embodiment, the traction portion 221 has a first abutment surface 221a on one side of the axial tail end, and has a second abutment surface 213a on one side of the axial front end of the inwardly contracted edge 213. The tube-penetrating traction member 200 also includes a retaining spring 230, which is clamped between the first abutment surface 221a and the second abutment surface 213a to limit the traction portion 221 from moving in the axial direction relative to the traction sleeve 210.

[0133] See also Figure 21 to Figure 22 As shown, the axial tail end of the traction portion 221 is an end of the traction portion 221 in the negative direction of X, the axial tail end of the traction portion 221 is close to the traction sleeve 210, and is connected to the fixing portion 222. The traction portion 221 has a first abutting surface 221a on one side of the axial tail end, the first abutting surface 221a faces the traction sleeve 210, and the axial front end of the inner contraction edge 213 has a second abutting surface 213a on one side, the axial front end of the inner contraction edge 213 is an end of the inner contraction edge 213 in the positive direction of X, and the second abutting surface 213a faces the traction portion 221. The tube-penetrating traction member 200 also includes a retaining spring 230, which has a through hole. The through hole penetrates the retaining spring 230 along the axial direction of the traction sleeve 210, and the retaining spring 230 has an opening along the circumferential direction of the traction sleeve 210. The traction part 221 is installed with the retaining spring 230 through the opening, and the opening contacts the traction part 221. The traction part 221 squeezes the opening toward the inside of the retaining spring 230 along the radial direction, and the traction part 221 enters the through hole. The inner wall surface of the retaining spring 230 contacts and is connected with the outer wall surface of the traction part 221, and the retaining spring 230 is fixed on the traction part 221. The retaining 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. The traction portion 221 is located on the outside of the traction sleeve 210 in the axial direction. When the traction portion 221 moves toward the axial tail end relative to the traction sleeve 210, the retaining spring 230 is located between the first abutting surface 221a and the second abutting surface. The retaining spring 230 abuts against the second abutting surface 213a on the side facing the second abutting surface 213a, thereby limiting the traction portion 221 from continuing to move in the opposite direction of X relative to the traction sleeve 210, thereby preventing the traction portion 221 from entering the traction sleeve 210 and causing damage to the optical fiber connector 100.

[0134] In one possible implementation, see Fig. 20As shown, the tube-threading traction member 200 further includes a fourth sealing ring 240, which is sealingly disposed between the traction 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 at any position on 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 are arranged on the fixed portion 222 along the axial direction. The inner wall surface of the fourth sealing ring 240 is connected to the outer wall surface of the fixed portion 222, and the outer wall surface of the fourth sealing ring 240 is connected to the inner wall surface of the traction sleeve 210. The fourth sealing ring 240 is used to form a seal between the traction sleeve 210 and the fixed portion 222, which helps to prevent external substances such as dust and water vapor from entering the interior of the optical fiber connector 100, thereby protecting the optical fiber connector 100 from the influence of the external environment.

[0135] In a possible implementation, the fifth connection structure 111 includes a third thread 111a disposed on the outer wall of the ferrule base 110, and the sixth connection structure 212 includes a fourth thread 212a disposed on the inner wall of the traction sleeve 210, and the third thread 111a and the fourth thread 212a are matched and connected.

[0136] See also Fig.18 and Fig.21 As shown, 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 cooperate with each other. When the optical fiber connector 100 is inserted into the pipe, 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 cooperate and connect to fix the ferrule base 110 and the pipe inserting traction member 200. The pipe inserting traction member 200 completes the pipe inserting of the optical fiber connector 100 under the drive of the pulling rope. After the optical fiber connector 100 is inserted into the pipe, the third thread 111a and the fourth thread 212a are released from the threaded connection to separate the ferrule base 110 and the pipe inserting traction member 200. By threading the third thread 111a and the fourth thread 212a together, a stable connection can be formed between the ferrule base 110 and the pulling sleeve 210. The threaded connection has a strong load-bearing capacity and tensile strength, and can withstand a large pulling force, ensuring that the fiber optic connector 100 will not loosen or fall off between the tube-threading pulling member 200 and the ferrule base 110 during the tube-threading process.

[0137] In a possible implementation, the optical fiber connector 100 further includes 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 .

[0138] See also Fig.18As shown, the optical fiber connector 100 also includes a ferrule 170, which is connected to the optical fiber 300 and is used to fix the optical fiber 300 and realize the physical docking of the two end faces of the optical fiber 300, so that the optical signal can be continuous to form an optical path. The present application takes the ceramic ferrule as an example for explanation. For other types of ferrules, such as glass ferrules and metal ferrules, their structures are similar to the ceramic ferrules. The ferrule 170 is fixedly connected to the ferrule base 110. The ferrule 170 is fixed to the axial front end of the ferrule base 110 and is partially located in the second accommodating cavity 211. The optical fiber in the ferrule base 110 is partially inserted into the ferrule 170 and connected to the ferrule 170. The fifth connecting structure 111 is located on the ferrule base 110. The fifth connecting structure 111 is located on the X-opposite side of the fixed connection between the ferrule 170 and the ferrule base 110. When the optical fiber connector 100 is being pulled, 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 X-opposite side of the fixed connection between the ferrule 170 and the ferrule base 110. 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, which can ensure that the connection between the ferrule and the ferrule base is not affected during the pulling process.

[0139] In a possible embodiment, the optical fiber connector 100 includes a ferrule base 110, a main shaft 120, an outer frame sleeve 160, a dust cover 180, a ferrule 170 and an elastic member 190. The outer frame sleeve 160 is sleeved on the outside of the ferrule 170, an optical fiber 300 is fixed in the ferrule 170, 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 dust cover 180 is sleeved on the outside of the ferrule 170 and fixedly connected to the ferrule base 110.

[0140] See also Figure 5As shown, the optical fiber connector 100 includes a ferrule base 110, in which an optical fiber 300 is fixed, a ferrule 170 is fixedly connected to the axial front end of the ferrule base 110, and 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 to the main shaft 120, and one 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 along the axial direction are respectively abutted against 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 optical fiber connectors 100 are connected at both ends of the adapter 20 through the adapter 20, the adapter 20 and the ferrule 170 are in contact and generate mutual force, and the elastic member 190 is in a compressed state. The elastic member in the compressed state applies elastic force to the ferrule 170, so that the ferrule 170 has sufficient elastic force to maintain a tight connection with the other ferrule 170. In this embodiment, the elastic member 190 can be a spring, and the spring sleeve is arranged on one end of the ferrule 170 connected to the ferrule base 110. The dust cover 180 is sleeved on the outside of the ferrule 170 and fixedly connected to the ferrule base 110. The dust cover 180 can be fixed to the ferrule base 110 by a buckle. Of course, the dust cover 180 can also be fixedly connected to the ferrule base 110 by other fixed connection methods. The dust cover 180 has a accommodating cavity inside and is sleeved on the outside of the ferrule 170 . After the dust cover 180 is fixedly connected to the ferrule base 110 , the ferrule 170 is located in the space enclosed by the dust cover 180 and the ferrule base 110 . The dust cover 180 is used to protect the ferrule 170 .

[0141] In a possible implementation, the optical fiber connector 100 further includes a protective tube 500 and a tail sheath 600 , wherein the protective tube 500 is located at the axial tail end of the optical fiber connector 100 , and the tail sheath 600 is sleeved on the outside of the protective tube 500 and partially located at the axial tail end of the protective tube 500 .

[0142] See also Figure 1 and Figure 2 As shown, the protective tube 500 is located at the axial tail end of the optical fiber connector 100, and the protective tube 500 is sleeved outside the optical fiber 300 and connected to the axial tail end of the sleeve 410. In this embodiment, the protective tube 500 is arranged at the rear end of the optical fiber 300, and the protective tube 500 plays an insulating and protective role for the optical fiber 300. Exemplarily, the material of the protective tube 500 can be polyethylene.

[0143] The tail sleeve 600 is sleeved on the outside of the protection tube 500 and is partially located at the axial tail end of the protection tube 500. The axial front end of the tail sleeve 600 may be provided with a fifth thread, and the axial rear end of the sleeve 410 may be provided with a sixth thread. During assembly, the tail sleeve 600 is sleeved on the outside of the protection tube 500, and the axial tail end of the sleeve 410 is inserted into the axial front end of the tail sleeve 600 and connected to the sleeve 410 through the cooperation of the threads.

[0144] The protective tube 500 is sleeved on the outside of the optical fiber 300, and the tail sheath 600 is sleeved on the outside of the protective tube 500. Both the protective tube 500 and the tail sheath 600 are used to protect the optical fiber 300. The optical fiber 300 has double-layer protection of the protective tube 500 and the tail sheath 600, and the protective effect is better.

[0145] It can be understood that in a possible implementation, the present application also provides a fiber optic connector 100, and the main shaft 120 of the fiber optic connector 100 can be connected to either the tube pulling member 200 or the outdoor component 400.

[0146] The present application also provides a communication device, including an adapter 20, and the adapter 20 is connected to the optical fiber connector 100 of any of the above embodiments. The communication device can be, but is not limited to, an optical distribution network (ODN) device such as a fiber optic access terminal (FAT), a cable splice box (Spl itting and splitting closure, SSC). Taking the communication device as an ODN device as an example, the ODN device is an optical cable network that provides an optical transmission channel between an optical line terminal (OLT) and an optical network unit (ONU). The ODN device can connect an optical line terminal device with multiple optical network unit devices to provide bidirectional transmission of optical signals.

[0147] The communication device is provided with an adapter 20, which is used to connect with the optical fiber connector 100. The optical fiber connector 100 can be of different types. The adapter 20 can connect two different types of optical fiber connectors 100, so that different types of optical fiber connectors 100 can be interconnected. The optical fiber connector 100 is connected to the adapter 20 after the optical fiber connector 100 is threaded through the tube pulling member 200. The optical fiber connector 100 is used to connect the optical fiber 300 to the communication device or other optical fiber connectors. The optical fiber connector 100 has a plug-in function and can be easily connected or disconnected with the adapter 20. The optical fiber connector 100 realizes the docking of two optical fibers. By plugging two optical fiber connectors 100 at both ends of the adapter 20, the connection and transmission of optical signals can be realized. Fig.23 A communication device in an embodiment is shown, the communication device includes an adapter 20, there may be multiple adapters 20, there may also be multiple optical fiber connectors 100, the optical fiber connector 100 has an optical fiber 300, outdoors, multiple optical fiber connectors 100 are connected to multiple adapters 20 through outdoor components 400 after being passed through pipes, and indoors, multiple adapters 20 are connected to other multiple optical fiber connectors 100, thereby realizing the conduction of optical signals.

[0148] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An optical fiber connector (100), characterized in that: include: Insert base (110); A connecting piece (130) fixed at the axial rear end of the ferrule base (110); An 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 to the ferrule base (110); A main shaft (120) is sleeved on the outer sides of the ferrule base (110) and the connecting piece (130); the main shaft (120) has a first accommodating cavity (121) penetrating along the axial direction; the rear end of the ferrule base (110) and the connecting piece (130) are connected to the main shaft (120) in the first accommodating cavity (121); The outdoor component (400) is sleeved on the outside of the main shaft (120).

2. The optical fiber connector (100) according to claim 1, characterized in that: A first connection structure (1211) is provided on the inner wall of the first accommodating cavity (121), and a second connection structure (113) is provided on the outer wall of the ferrule base (110); the first connection structure (1211) and the second connection structure (113) are detachably connected.

3. The optical fiber connector (100) according to claim 1 or 2, characterized in that: The inner wall of the first accommodating cavity (121) abuts against the outer wall of the connecting member (130).

4. The optical fiber connector (100) according to claim 1 or 2, characterized in that: A boss (1212) protruding inward is provided on the inner wall of the first accommodating cavity (121), and the boss (1212) is used to abut against the axial rear end of the connecting member (130).

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

6. The optical fiber connector (100) according to claim 1 or 2, 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) and the insert base (110) are connected via the matching of the connecting column (151) and the connecting hole (133).

7. The optical fiber connector (100) according to claim 1 or 2, characterized in that: The outdoor component (400) comprises a sleeve (410), and the sleeve (410) is sleeved on the outside of the main shaft (120); The sleeve (410) is provided with a third connection structure (411), and the main shaft (120) is provided with a fourth connection structure (131), and the third connection structure (411) and the fourth connection structure (131) are detachably connected.

8. The optical fiber connector (100) according to claim 7, characterized in that: The third connection structure (411) comprises a first snap button (411a) and / or a first card slot (411b), and the fourth connection structure (131) comprises a second card slot (131a) and / or a second snap button (131b) that cooperate with the third connection structure (411).

9. The optical fiber connector (100) according to claim 8, characterized in that: Along the direction from the axial front end to the axial rear end of the optical fiber connector (100), the first spring buckle (411a) and / or the first clamping groove (411b) has a first guiding inclined surface (411c) inclined in the radial outward direction of the main axis (120), and the second clamping groove (131a) and / or the second spring buckle (131b) has a second guiding inclined surface (122a) inclined in the radial outward direction of the main axis (120), and the first guiding inclined surface (411c) and the second guiding inclined surface (122a) are coupled.

10. The optical fiber connector (100) according to claim 7, characterized in that: The number of the third connection structure (411) and the number of the fourth connection structure (131) are both at least two, and the at least two third connection structures (411) and the at least two fourth connection structures (131) are both arranged at intervals along the axial direction of the main shaft (120).

11. The optical fiber connector (100) according to claim 7, characterized in that: The outdoor component (400) further comprises an external plug-in unit (420), a through hole (412) is provided on the side wall of the sleeve (410), the external plug-in unit (420) is fixed in the through hole (412) and protrudes from the inner wall of the sleeve (410), and the external plug-in unit (420) and the inner wall of the through hole (412) are interference fit.

12. The optical fiber connector (100) according to claim 7, characterized in that: A limiting groove (112) is provided on the outer wall of the ferrule base (110), and a limiting protrusion (413) is provided on the inner wall of the sleeve (410); the limiting protrusion (413) is engaged 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 in that: include: Insert base (110); A connecting piece (130) fixed at the axial rear end of the ferrule base (110); An 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 to the ferrule base (110); A main shaft (120) is sleeved on the outer sides of the ferrule base (110) and the connecting piece (130); the main shaft (120) has a first accommodating cavity (121) penetrating along the axial direction; the rear end of the ferrule base (110) and the connecting piece (130) are connected to the main shaft (120) in the first accommodating cavity (121); The tube-penetrating traction member (200) is sleeved on the outer side of the main shaft (120).

14. The optical fiber connector (100) according to claim 13, characterized in that: A first connection structure (1211) is provided on the inner wall of the first accommodating cavity (121), and a second connection structure (113) is provided on the outer wall of the ferrule base (110); the first connection structure (1211) and the second connection structure (113) are detachably connected.

15. The optical fiber connector (100) according to claim 13 or 14, characterized in that: The inner wall of the first accommodating cavity (121) abuts against the outer wall of the connecting member (130).

16. The optical fiber connector (100) according to claim 13 or 14, characterized in that: A boss (1212) protruding inward is provided on the inner wall of the first accommodating cavity (121), and the boss (1212) is used to abut against the axial rear end of the connecting member (130).

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

18. The optical fiber connector (100) according to claim 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) and the insert base (110) are connected via the matching of the connecting column (151) and the connecting hole (133).

19. The optical fiber connector (100) according to claim 13 or 14, characterized in that: The tube-threading traction member (200) is sleeved on the outer side of the insert base (110), and a fifth connection structure (111) is provided on the outer wall of the insert base (110); The tube-penetrating traction member (200) comprises a traction sleeve (210), the traction sleeve (210) having a second accommodating cavity (211) penetrating along the axial direction, the core inserting base (110) being located in the second accommodating cavity (211), a sixth connecting structure (212) being provided on the inner wall of the second accommodating cavity (211), and the fifth connecting structure (111) and the sixth connecting structure (212) being detachably connected.

20. The optical fiber connector (100) according to claim 19, characterized in that: The optical fiber connector further comprises a traction rope, and the tube-threading traction member (200) further comprises a traction cap (220), wherein the traction cap (220) is arranged at the axial front end of the traction sleeve (210), and the traction cap (220) is used for being fixedly connected to the traction rope.

21. The optical fiber connector (100) according to claim 20, characterized in that: The axial front end of the traction sleeve (210) is provided with an inwardly contracted edge (213); the traction cap (220) comprises a traction portion (221) and a fixing portion (222); the traction portion (221) and the fixing portion (222) are fixedly connected or form an integrated structure; a portion of the fixing portion (222) is located in the second accommodating cavity (211) and abuts against the inwardly contracted edge (213) along the axial direction; and the traction portion (221) is located at the axial front end of the traction sleeve (210).

22. The optical fiber connector (100) according to claim 21, characterized in that: The fixing portion (222) and the traction sleeve (210) are rotatably connected with the axial direction as the rotation axis.

23. The optical fiber connector (100) according to claim 21 or 22, characterized in that: The traction portion (221) has a first abutment surface (221a) at one side of the axial rear end, and the inwardly contracted edge (213) has a second abutment surface (213a) at one side of the axial front end. The tube-penetrating traction member (200) further comprises a retaining spring (230), and the retaining spring (230) is clamped between the first abutment surface (221a) and the second abutment surface (213a) to limit the traction portion (221) from moving in the axial direction relative to the traction sleeve (210).

24. The optical fiber connector (100) according to claim 19, characterized in that: The fifth connection structure (111) comprises a third thread (111a) arranged on the outer wall of the ferrule base (110), and the sixth connection structure (212) comprises a fourth thread (212a) arranged on the inner wall of the traction sleeve (210), and the third thread (111a) and the fourth thread (212a) are connected in a cooperative manner.

25. The optical fiber connector (100) according to claim 19, characterized in that: The optical fiber connector (100) further comprises a ferrule (170), wherein the ferrule (170) is fixed at the axial front end of the ferrule base (110) and is partially located in the second accommodating cavity (211), and the ferrule (170) is used to connect the optical fiber (300).

26. A communication device, characterized in that: It comprises an adapter (20), and the adapter (20) is connected to the optical fiber connector (100) according to any one of claims 1 to 25.

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