Optical fiber connection assembly

Abstract

An optical fiber connection assembly, comprising a connector (100) and an adapter (200). The adapter (200) comprises an adapter body (210) and a first elastic arm (220); the adapter body (210) is provided with a socket (211); and the first elastic arm (220) is connected to the adapter body (210). The connector (100) comprises a head (110), a base (120), and a first limiting member (130); the head (110) is connected to the base (120); the first limiting member (130) is arranged on the base (120); one of the first elastic arm (220) and the base (120) is provided with a first protrusion (221), and the other one of the first elastic arm (220) and the base (120) is provided with a first slot (121). When the connector (100) is connected to the adapter (200), the head (110) is in plug-in fit with the socket (211), the first protrusion (221) and the first slot (121) are in positioning fit in the plug-in direction of the head (110) and the socket (211), and the first limiting member (130) is in limiting contact with the first elastic arm (220) so as to limit the deformation of the first elastic arm (220), so that the first protrusion (221) is separated from the first slot (121). The connector (100) and the adapter (200) are not prone to loosening in a plug-in state.

Description

Optical fiber connection assembly

[0001] Cross-reference to related applications

[0002] This application claims priority to the Chinese patent application No. 202410454405.6, filed on April 16, 2024, and entitled "Optical fiber connection assembly", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of optical fiber equipment, in particular to an optical fiber connection assembly. BACKGROUND

[0004] With the development of 5G / F5G and the next generation of fixed networks and pre-connection technology, optical fiber connection assemblies for indoor and outdoor become a necessary product for the access network backbone and distribution section, especially in the optical fiber connection of FTTR (Fiber to The Room), the optical fiber connection assembly is crucial.

[0005] In the related art, the optical fiber connection assembly mainly includes a plug-in connector and an adapter. In order to improve the stability of the connection between the connector and the adapter after plug-in cooperation, a friction protrusion is usually arranged on one of the connector and the adapter, and a friction recess is arranged on the other one, so as to realize locking through the friction cooperation of the friction protrusion or the friction recess. However, when the connector and the adapter are locked through the friction cooperation of the friction protrusion or the friction recess, the locking ability is limited, so that the connector and the adapter are prone to looseness in the plug-in state. SUMMARY

[0006] The present application discloses an optical fiber connection assembly, which comprises a connector and an adapter. The adapter comprises an adapter body and a first elastic arm. The adapter body is provided with a plug hole. The first elastic arm is connected with the adapter body. The connector comprises a head, a base and a first limiting piece. The head is connected with the base. The first limiting piece is arranged on the base. One of the first elastic arm and the base is provided with a first protrusion, and the other one is provided with a first recess. When the connector is connected with the adapter, the head is plug-in cooperated with the plug hole. The first protrusion and the first recess are positioned and cooperated in the plug-in direction of the head and the plug hole. The first limiting piece is in limiting contact with the first elastic arm, so as to limit the deformation of the first elastic arm and separate the first protrusion from the first recess. BRIEF DESCRIPTION OF DRAWINGS

[0007] Fig. 1 is a structural schematic view of the optical fiber connection assembly disclosed by the embodiment of the present application.

[0008] Fig. 2 is a partial enlarged view of Fig. 1;

[0009] Fig. 3 is a schematic view of the connector and the adapter in a separated state;

[0010] Fig. 4 is a schematic view of the third protrusion and the fourth protrusion in a first mating state, wherein a partial internal structure is shown;

[0011] Fig. 5 is a schematic view of the third protrusion and the fourth protrusion in a second mating state, wherein a partial internal structure is shown;

[0012] Fig. 6 is a schematic view of the connector and the dust cap in a mating state;

[0013] Fig. 7 is an exploded view of the dust cap;

[0014] Fig. 8 is a sectional view of the connector and the dust cap in a mating state;

[0015] Fig. 9 is a structural schematic view of the connector from a first perspective;

[0016] Fig. 10 is a structural schematic view of the connector from a second perspective;

[0017] Fig. 11 is a schematic view of the adapter and the dust plug in a mating state;

[0018] Fig. 12 is a sectional view of the adapter and the dust plug in a mating state;

[0019] Fig. 13 is a structural schematic view of the adapter.

[0020] Legend: 100 - connector, 110 - head, 111 - ferrule, 112 - ferrule seat, 113 - optical cable core, 114 - optical cable, 120 - base, 121 - first groove, 122 - second stopper, 123 - second groove, 124 - fourth protrusion, 130 - first limiting member, 131 - first stopper, 132 - second protrusion, 133 - third protrusion, 134 - anti-skid groove, 140 - elastic member, 200 - adapter, 201 - guide gap, 210 - adapter body, 211 - insertion hole, 212 - flange, 220 - first elastic arm, 221 - first protrusion, 230 - eave, 240 - fixing nut, 250 - second sealing ring, 300 - first sealing ring, 400 - dust cap, 410 - dust cap body, 420 - traction part, 421 - traction hole, 430 - second elastic arm, 431 - fifth protrusion, 500 - dust plug, 600 - third sealing ring. DETAILED DESCRIPTION

[0021] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely below in combination with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0022] At present, the indoor WiFi of most home broadband users is connected to a router through an optical modem, and the coverage is performed by the WiFi signal of the router. The router generally supports two frequency bands of 2.4G and 5G. Although the 2.4G frequency band can support a rate of up to 300Mbps, the actual use effect is much worse due to the relatively large interference of the frequency band. The user's high-bandwidth application must use the 5G frequency band, but the wall-penetrating capability of the 5G frequency band WiFi signal is weak, which brings great inconvenience to the high-bandwidth application of some large users. FTTR (Fiber to The Room) uses one master optical modem and multiple slave optical modems to perform indoor WiFi coverage, and the master and slave optical modems are connected by butterfly optical cables or hidden optical cables, so as to improve the strength of the indoor WiFi signal. The optical fiber connection assembly disclosed in the embodiments of the present application can be used not only for FTTH (Fiber To The Home) optical fiber connection, FTTB (Fiber To The Building) and the like, but also for FTTR (Fiber to The Room) optical fiber connection.

[0023] The technical solutions disclosed by the various embodiments of the present application will be described in detail below in combination with the drawings.

[0024] Please refer to FIGS. 1 to 13, the embodiments of the present application disclose an optical fiber connection assembly, the disclosed optical fiber connection assembly comprises a connector 100 and an adapter 200.

[0025] It should be noted that the optical fiber connection assembly disclosed in the embodiments of the present application can be a multi-core optical fiber connection assembly or a single-core optical fiber connection assembly.

[0026] When the optical fiber connection assembly is a multi-core optical fiber connection assembly, the connector 100 is a multi-core multi-channel plug-in connector, and the inside of the connector 100 can be provided with a plurality of optical cable cores 113, for example, the connector 100 can be a connector comprising 2 to 12 optical cable cores 113 arranged side by side, of course, the connector 100 can also be a connector comprising other number of optical cable cores 113, for example, the number of optical cable cores 113 is 24. The adapter 200 is an adapter adapted to the multiple rows of optical cable cores 113 of the connector 100.

[0027] When the fiber optic connection assembly is a single-core fiber optic connection assembly, the connector 100 is a single-core single-channel plug-in connector, and the connector 100 is internally provided with one optical cable core 113. The adapter 200 is an adapter adapted to the single-row optical cable core 113 of the connector 100.

[0028] The connector 100 can be part of an access network backbone section connection, and the connector 100 is plugged with one end of the adapter 200. The other end of the adapter 200 can be used to plug with an access network distribution section or terminal, so as to realize the communication connection between the access network backbone section and the access network distribution section or terminal.

[0029] The adapter 200 includes an adapter body 210 and a first elastic arm 220. The adapter body 210 is provided with a socket 211, and the first elastic arm 220 is connected with the adapter body 210. The connector 100 includes a head 110, a base 120 and a first limiting piece 130. The head 110 is connected with the base 120, and the first limiting piece 130 is arranged on the base 120. Specifically, the head 110 and the base 120 are coaxially arranged. In an embodiment, the first limiting piece 130 can be sleeved outside the base 120 or arranged on the side wall of the base 120.

[0030] Among them, one of the first elastic arm 220 and the base 120 is provided with a first protrusion 221, and the other is provided with a first groove 121.

[0031] When the connector 100 is connected with the adapter 200, the head 110 is plugged with the socket 211, and the first protrusion 221 and the first groove 121 are positioned and matched in the plugging direction of the head 110 and the socket 211. The first limiting piece 130 is in limiting contact with the first elastic arm 220, so as to limit the deformation of the first elastic arm 220 and avoid the separation of the first protrusion 221 and the first groove 121. The slot of the first groove 121 can be perpendicular or approximately perpendicular to the plugging direction.

[0032] When the connector 100 and the adapter 200 need to be separated, the first limiting piece 130 can be separated from the first elastic arm 220, so that when the first protrusion 221 is separated from the first groove 121 under the action of external force, the first elastic arm 220 can be deformed under the action of the first protrusion 221 and the slot of the first groove 121, so that the first protrusion 221 is separated from the first groove 121 and the head 110 is separated from the socket 211, thereby realizing the separation of the connector 100 and the adapter 200.

[0033] The fiber optic connection assembly disclosed by the embodiment of the application sets the adapter 200 as a structure comprising an adapter body 210 and a first elastic arm 220, sets the connector 100 as a structure comprising a head 110, a base 120 and a first limiting piece 130, and sets the first elastic arm 220 and the base 120 as one of which is provided with a first protrusion 221 and the other of which is provided with a first groove 121, so that in the case of connecting the connector 100 and the adapter 200, the head 110 is plugged with the jack 211, and then in the case of inserting the adapter 200 into the access network wiring segment or terminal, the communication connection between the connector 100 and the access network wiring segment or terminal can be realized. The first protrusion 221 and the first groove 121 are positioned and matched in the plugging direction of the head 110 and the jack 211, so that the connection between the connector 100 and the adapter 200 in the plugging direction is more stable. By setting the first limiting piece 130, the first limiting piece 130 and the first elastic arm 220 are in limiting contact, so that the deformation of the first elastic arm 220 can be limited to separate the first protrusion 221 and the first groove 121, and then the stability of the connection between the connector 100 and the adapter 200 can be effectively improved.

[0034] Specifically, the limiting contact between the first limiting piece 130 and the first elastic arm 220 can be that the end of the free end of the first limiting piece 130 and the first elastic arm 220 abuts, so that the deformation of the first elastic arm 220 is limited by the frictional fit between the first limiting piece 130 and the first elastic arm 220. Of course, the end of the free end of the first elastic arm 220 can be provided with a limiting hole, and the first limiting piece can be inserted into the limiting hole to limit the deformation of the first elastic arm 220. Of course, the structure of the limiting contact between the first limiting piece 130 and the first elastic arm 220 can also be other structures, which will be described below.

[0035] In an embodiment, the first limiting piece 130 can be an elastic rod, one end of the elastic rod can be fixedly arranged on the base 120, and the other end of the elastic rod can press on the first elastic arm 220 in the case that the elastic rod is not subjected to external force, so as to make the first elastic arm 220 limit the separation of the first protrusion 221 and the first groove 121. When the elastic rod is subjected to external force, the external force can drive the other end of the elastic rod to separate from the first elastic arm 220, so that the first protrusion 221 and the first groove 121 can be separated.

[0036] In another embodiment, the first limiting member 130 is movably arranged on the base 120, and the first limiting member 130 has a first position and a second position. The first limiting member 130 can be rotatably arranged on the base 120, or movably arranged on the base 120, and the embodiments of the present application do not make specific limitation on the manner in which the first limiting member 130 is movably arranged on the base 120. When the first limiting member 130 is in the first position, the first limiting member 130 can be in limiting contact with the first elastic arm 220. When the first limiting member 130 is in the second position, the first limiting member 130 can be separated from the first elastic arm 220.

[0037] The fiber-optic connection assembly disclosed by the embodiments of the present application movably arranges the first limiting member 130 on the base 120, so that when the connector 100 is connected with the adapter 200, the first limiting member 130 is in limiting contact with the first elastic arm 220 when the first limiting member 130 moves to the first position, thereby limiting the deformation of the first elastic arm 220 so that the first protrusion 221 is separated from the first groove 121, and the first limiting member 130 is separated from the first elastic arm 220 when the first limiting member 130 moves to the second position, thereby facilitating the disconnection of the connector 100 and the adapter 200.

[0038] In an embodiment, the first limiting member 130 can be a cylindrical structural member, and the first limiting member 130 can be slidably sleeved on the base 120 along the plug-in direction. When the first limiting member 130 slides to the first position, the first end of the first limiting member 130 can be sleeved outside at least part of the first elastic arm 220, and the first end of the first limiting member 130 can clamp at least part of the first elastic arm 220 with the base 120 to limit the deformation of the first elastic arm 220. When the first limiting member 130 slides to the second position, the first end of the first limiting member 130 can be separated from the first elastic arm 220.

[0039] The fiber-optic connection assembly disclosed by the embodiments of the present application sets the first limiting member 130 as a cylindrical structural member, so that the first limiting member 130 is slidably sleeved on the base 120 along the plug-in direction, thereby making the first limiting member 130 more stable when sliding along the base 120 to switch between the first position and the second position, and the installation of the first limiting member 130 is also more stable, and the first limiting member 130 can also protect the sleeved part of the base 120.

[0040] In order to make the connection of the connector 100 and the adapter 200 more reliable, in an embodiment, the connector 100 can further include an elastic member 140, a first end of the elastic member 140 can be connected with the first limiting member 130, and a second end of the elastic member 140 can be connected with the base 120, and the elastic member 140 can be used to drive the first limiting member 130 to move from the second position to the first position.

[0041] Specifically, the elastic member 140 can be a spring, which can be sleeved on the base 120. When the external force drives the first limiting member 130 to move to the second position, the spring can be in a compressed state. When the external force acting on the first limiting member 130 disappears, the spring can drive the first limiting member 130 to move from the second position to the first position. Of course, the elastic member 140 can also be other structures, for example, can be an elastic rubber member, etc. The embodiments of the present application do not make specific limitations on the type of the elastic member 140.

[0042] The optical fiber connection assembly disclosed by the embodiments of the present application is provided with the elastic member 140. After the connector 100 is connected with the adapter 200, the elastic member 140 can drive the first limiting member 130 to move from the second position to the first position, so as to realize the automatic limiting contact of the first limiting member 130 and the first elastic arm 220. Moreover, after the connector 100 is connected with the adapter 200, the elastic member 140 can drive the first limiting member 130 to remain in the first position, so as to make the connection of the connector 100 and the adapter 200 more reliable.

[0043] In order to facilitate the elastic member 140 to exert the acting force on the first limiting member 130, in an embodiment, the inner wall of the first limiting member 130 can be provided with a first blocking edge 131, the base 120 can be provided with a second blocking edge 122, and the first limiting member 130 can be sleeved outside the second blocking edge 122. The first blocking edge 131 and the second blocking edge 122 can be arranged in sequence in the direction from the first position to the second position, and the elastic member 140 can be limited between the first blocking edge 131 and the second blocking edge 122. The direction from the first position to the second position can be parallel to the plug-in direction.

[0044] The optical fiber connection assembly disclosed by the embodiments of the present application is provided with the first blocking edge 131 on the inner wall of the first limiting member 130 and the second blocking edge 122 on the base 120, so that the elastic member 140 can be limited between the first blocking edge 131 and the second blocking edge 122, thereby facilitating the elastic member 140 to exert the acting force on the first limiting member 130. By sleeving the first limiting member 130 outside the second blocking edge 122, the appearance performance of the optical fiber connection assembly can be optimized. Moreover, the first limiting member 130 is sleeved on the elastic member 140, so as to protect the elastic member 140. The first limiting member 130 can also limit the elastic member 140 in the direction perpendicular to the compression direction of the elastic member 140, so as to avoid the bending failure of the elastic member 140 in the compressed state.

[0045] In order to make the connector 100 and the adapter 200 more accurate in the plug-in process, in an embodiment, the adapter 200 can further comprise a baffle 230, which can be connected with the adapter body 210, and the baffle 230 can be arranged opposite and spaced apart from the first elastic arm 220 in the direction perpendicular to the plug-in direction. In the case that the connector 100 is connected with the adapter 200, the first end of the first limiting piece 130 can extend into the guide gap 201 between the baffle 230 and the first elastic arm 220 to guide with the inner wall of the guide gap 201 in the plug-in direction.

[0046] The optical fiber connection assembly disclosed in the embodiment of the present application can form the guide gap 201 between the baffle 230 and the first elastic arm 220, so that when the connector 100 is connected with the adapter 200, the first end of the first limiting piece 130 can extend into the guide gap 201 between the baffle 230 and the first elastic arm 220 to guide with the inner wall of the guide gap 201 in the plug-in direction, thereby making the connector 100 and the adapter 200 more accurate in the plug-in process.

[0047] In an embodiment, the baffle 230 and the first elastic arm 220 can be connected with the end portion where the hole of the jack 211 is located, and both extend in the plug-in direction, thereby making the structure of the adapter 200 relatively simple, and the thickness in the direction perpendicular to the plug-in direction is relatively small, thereby facilitating the miniaturization design of the adapter 200.

[0048] In another embodiment, the baffle 230 and the first elastic arm 220 can be connected with the outer wall of the adapter body 210 opposite to the jack, of course, the baffle 230 and the first elastic arm 220 can also be other arrangement modes, and the embodiment of the present application does not make specific limitation to the arrangement modes of the baffle 230 and the first elastic arm 220.

[0049] Further, the baffle 230 can extend along the end portion where the hole of the jack 211 is located to form a ring-shaped structure, thereby making the baffle 230 can be arranged outside the first elastic arm 220, so that the baffle 230 can protect the first elastic arm 220, and the baffle 230 and the first elastic arm 220 can form a labyrinth seal structure, thereby sealing the plug-in connection between the head 110 of the connector 100 and the jack 211 of the adapter 200.

[0050] In order to make the baffle 230 better protect the first elastic arm 220, in an embodiment, the extension length of the baffle 230 in the plug-in direction can be greater than the extension length of the first elastic arm 220, and this structure can avoid the first elastic arm 220 extending out of the baffle 230, thereby making the baffle 230 better protect the first elastic arm 220.

[0051] To avoid unlimited movement of the first limiting member 130, in an embodiment, the base 120 can also be provided with a second groove 123 extending in the plug-in direction, and the inner wall of the first limiting member 130 can be provided with a second protrusion 132, which can cooperate with the second groove 123. When the first limiting member 130 slides to the first position, the second protrusion 132 can be in limiting contact with the first end of the second groove 123, and when the first limiting member 130 slides to the second position, the second protrusion 132 can be in limiting contact with the second end of the second groove 123, wherein the first end of the second groove 123 is opposite the second end of the second groove 123 in the plug-in direction.

[0052] The optical fiber connection assembly disclosed in the embodiments of the present application can avoid unlimited movement of the first limiting member 130 by providing the base 120 with a second groove 123 extending in the plug-in direction, and providing the inner wall of the first limiting member 130 with a second protrusion 132, so that when the first limiting member 130 slides to the first position, the second protrusion 132 is in limiting contact with the first end of the second groove 123, and when the first limiting member 130 slides to the second position, the second protrusion 132 is in limiting contact with the second end of the second groove 123. Thus, the first limiting member 130 can be prevented from unlimited movement, and the first limiting member 130 can also be prevented from impacting the first elastic arm 220.

[0053] To prevent the connector 100 from being separated from the adapter 200 due to misoperation of personnel, in an embodiment, the inner wall of the first limiting member 130 can be provided with a third protrusion 133, the base 120 can be provided with a fourth protrusion 124, and the first limiting member 130 can rotate about its own central axis. It should be noted that the central axis of the first limiting member 130 is parallel to the plug-in direction. When the first limiting member 130 is rotated to a position where the third protrusion 133 is opposite the fourth protrusion 124, the third protrusion 133 and the fourth protrusion 124 are in limiting cooperation to limit the first limiting member 130 from moving from the first position to the second position. When the first limiting member 130 is rotated to a position where the third protrusion 133 is misaligned with the fourth protrusion 124, the first limiting member 130 can move from the first position to the second position.

[0054] The optical fiber connection assembly disclosed in the embodiments of the present application can prevent the connector 100 from being separated from the adapter 200 due to misoperation of personnel by providing the inner wall of the first limiting member 130 with a third protrusion 133, providing the base 120 with a fourth protrusion 124, and allowing the first limiting member 130 to rotate about its own central axis. Thus, when the connector 100 is connected to the adapter 200, the first limiting member 130 can be rotated to a position where the third protrusion 133 is opposite the fourth protrusion 124, and the third protrusion 133 and the fourth protrusion 124 are in limiting cooperation to limit the first limiting member 130 from moving from the first position to the second position.

[0055] In order to facilitate the user to grasp, in an embodiment, the outer wall of the first limiting piece 130 can be provided with anti-skid grooves 134, so that the user can more easily grasp the adapter 200.

[0056] In order to make the plug-in cooperation of the connector 100 and the adapter 200 more stable, in an embodiment, the shape of the head 110 can be matched with the profile of the insertion hole 211, so as to avoid unnecessary gaps between them, so that the head 110 and the inner wall of the insertion hole 211 can be limited in the direction perpendicular to the plug-in direction, thereby making the plug-in cooperation of the connector 100 and the adapter 200 more stable.

[0057] In order to better seal the joint of the head 110 and the insertion hole 211, in an embodiment, part of the base 120 can extend into the insertion hole 211, and the optical fiber connection assembly can further include a first sealing ring 300, which can be sealingly connected between the base 120 and the inner wall of the insertion hole 211, so that the first sealing ring 300 can better seal the joint of the head 110 and the insertion hole 211.

[0058] In some outdoor applications of optical fiber connection assemblies, the adapter 200 needs to be installed in the mounting hole of the wall or support. In order to make the adapter 200 better sealed with the mounting hole when installed in the mounting hole of the wall or support, in an embodiment, the adapter 200 can further include a fixing nut 240 and a second sealing ring 250, the adapter body 210 can have a flange 212, the outer surface of the adapter body 210 can have external threads, the fixing nut 240 can be threadedly connected with the external threads, and the second sealing ring 250 can be sleeved on the adapter body 210 and located between the fixing nut 240 and the flange 212.

[0059] When the adapter body 210 is installed in the mounting hole of the wall or support, the second sealing ring 250 is opposite to the inner wall of the mounting hole. By rotating the fixing nut 240 to make the fixing nut 240 threadedly connected with the external threads, the fixing nut 240 moves along the outer surface of the adapter body 210 to press the second sealing ring 250. The second sealing ring 250 is deformed towards the direction of the inner wall of the mounting hole under the pressing of the fixing nut 240 and the flange 212, so that the second sealing ring 250 is sealingly connected with the inner wall of the mounting hole, and the adapter 200 and the mounting hole are better sealingly connected.

[0060] In the case that the connector 100 is separated from the adapter 200, the head 110 of the connector 100 is exposed outside and is easy to be damaged. In order to protect the head 110 of the connector 100 in the case that the connector 100 is separated from the adapter 200, in an embodiment, the optical fiber connection assembly can further comprise a dust cap 400, which can have a dust cavity with an open end. In the case that the connector 100 is separated from the adapter 200, the dust cap 400 can be used to be plugged with the base 120 so that the head 110 is located in the dust cavity, thereby the head 110 can be protected.

[0061] In an embodiment, the open end of the dust cap 400 can have a second elastic arm 430, which can be provided with a fifth protrusion 431, and the base 120 can be provided with a first groove 121. In the case that the dust cap 400 is plugged with the base 120, the fifth protrusion 431 can be positioned and matched with the first groove 121 in the plugging direction of the head 110 and the dust cap 400, and the first limiting piece 130 can be in limiting contact with the second elastic arm 430 to limit the deformation of the second elastic arm 430 so that the fifth protrusion 431 is separated from the first groove 121, thereby the connection of the dust cap 400 and the base 120 is more stable.

[0062] As shown in FIG. 4 and FIG. 5, in the embodiment that the first limiting piece 130 is movably arranged on the base 120 and has the first position and the second position, in order to prevent the connector 100 and the dust cap 400 from being separated due to the misoperation of personnel, in an embodiment, the inner wall of the first limiting piece 130 can be provided with a third protrusion 133, and the base 120 can be provided with a fourth protrusion 124. The first limiting piece 130 can rotate around its own center axis, and it is to be noted that the center axis of the first limiting piece 130 is parallel to the plugging direction. When the first limiting piece 130 is rotated to the position that the third protrusion 133 and the fourth protrusion 124 are opposite to each other, the third protrusion 133 and the fourth protrusion 124 are in limiting contact to limit the movement of the first limiting piece 130 from the first position to the second position, thereby the connector 100 and the dust cap 400 can be prevented from being separated due to the misoperation of personnel. When the first limiting piece 130 is rotated to the position that the third protrusion 133 and the fourth protrusion 124 are misaligned, the first limiting piece 130 can be moved from the first position to the second position.

[0063] In some application scenarios, the connector 100 needs to pass through some pipes during installation, so the connector 100 needs to be pulled to pass through the pipes. In order to facilitate the pulling of the connector 100, in an embodiment, the dustproof cap 400 can include a dustproof cap body 410 and a pulling part 420. The dustproof cap body 410 can be provided with a dustproof inner cavity. The pulling part 420 can be connected with the dustproof cap body 410 and located on the side away from the opening of the dustproof cap body 410. The pulling part 420 can be provided with a pulling hole 421, thereby facilitating the pulling of the connector 100.

[0064] In some application scenarios, when pulling the connector 100, the connector 100 may sometimes rotate around the direction perpendicular to the pulling direction, thereby easily causing damage to the connector 100. In order to prevent the connector 100 from being damaged during pulling, in an embodiment, the pulling part 420 and the dustproof cap body 410 can be rotationally connected around the central axis direction of the dustproof cap body 410. It should be noted that the central axis direction of the dustproof cap body 410 is parallel to the plug-in direction and parallel to the pulling direction.

[0065] The optical fiber connection assembly disclosed in the embodiments of the present application can make the pulling part 420 and the dustproof cap body 410 rotationally connected around the central axis direction of the dustproof cap body 410, so that when pulling the connector 100, the dustproof cap body 410 can rotate around the direction perpendicular to the pulling direction, and the connector 100 does not rotate or has a small rotation angle, thereby preventing the connector 100 from being damaged during pulling.

[0066] When the connector 100 is separated from the adapter 200, the jack 211 of the adapter 200 is exposed outside, so that the inner wall of the jack 211 is easy to accumulate dust and the like, thereby easily causing the problem that the fitting position of the connector 100 and the adapter 200 is inaccurate when the connector 100 is connected with the adapter 200. In order to make the fitting position of the connector 100 and the adapter 200 more accurate, in an embodiment, the optical fiber connection assembly can further include a dustproof plug 500. When the connector 100 is separated from the adapter 200, the dustproof plug 500 can be used for plug-in cooperation with the jack 211, thereby sealing the jack 211, thereby avoiding dust and the like from accumulating on the inner wall of the jack 211, so that the fitting position is relatively more accurate when the connector 100 is connected with the adapter 200.

[0067] In order to further better seal the jack 211, in an embodiment, the optical fiber connection assembly can further include a third sealing ring 600. The third sealing ring 600 can be sealingly connected between the dustproof plug 500 and the inner wall of the jack 211, thereby better sealing the jack 211.

[0068] It should be further explained that the connector 100 comprises a ferrule 111, a ferrule seat 112, a cable core 113 and a cable 114. The ferrule 111 can be arranged in the ferrule seat 112 and can be located at the front end of the connector 100 for insertion into the jack 211 to be connected in communication with the access network distribution segment or terminal. The cable core 113 is arranged inside the ferrule seat 112, and at least part of the cable 114 is located in the ferrule seat 112 and connected with the cable core 113. Among them, the ferrule 111, part of the ferrule seat 112, part of the cable core 113 form the head 110 of the connector 100; the other part of the ferrule seat 112, the other part of the cable core 113 and part of the cable 114 form the base 120.

[0069] The above embodiments of the present application mainly describe the differences between various embodiments. The different optimization features between various embodiments can be combined to form a more optimal embodiment without contradiction. In view of the brevity of the text, further description is omitted here.

[0070] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are only illustrative and not restrictive. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope of protection of the claims.

Claims

1. A fiber optic connection assembly, comprising: The connector (100) and the adapter (200) are connected, the head (110) and the insertion hole (211) are insertedly matched, the first protrusion (221) and the first recess (121) are positioned and matched in the insertion direction of the head (110) and the insertion hole (211), and the first limiting piece (130) and the first elastic arm (220) are in limiting contact, so that the first elastic arm (220) is deformed to separate the first protrusion (221) from the first recess (121). The first limiting piece (130) is movably arranged on the base (120), and the first limiting piece (130) has a first position and a second position. When the first limiting piece (130) is in the first position, the first limiting piece (130) is in limiting contact with the first elastic arm (220). When the first limiting piece (130) is in the second position, the first limiting piece (130) is separated from the first elastic arm (220).

2. The fiber optic connector assembly of claim 1, wherein, The first limiting piece (130) is a cylindrical structure, and the first limiting piece (130) is slidably sleeved on the base (120) along the insertion direction. When the first limiting piece (130) slides to the first position, the first end of the first limiting piece (130) is sleeved outside at least part of the first elastic arm (220), and the first end of the first limiting piece (130) and the base (120) clamp the first elastic arm (220) to limit the deformation of the first elastic arm (220). When the first limiting piece (130) slides to the second position, the first end of the first limiting piece (130) is separated from the first elastic arm (220).

3. The fiber optic connector assembly of claim 2, wherein, The connector (100) further comprises an elastic piece (140), a first end of the elastic piece (140) is connected with the first limiting piece (130), a second end of the elastic piece (140) is connected with the base (120), and the elastic piece (140) is used to drive the first limiting piece (130) to move from the second position to the first position. ​ ​ 4. The fiber optic connector assembly of claim 3, wherein, ​ 5. The fiber optic connector assembly of claim 4, wherein, The inner wall of the first limiting member (130) has a first stop edge (131), the base (120) has a second stop edge (122), and the first limiting member (130) is sleeved on the second stop edge (122), the first stop edge (131) and the second stop edge (122) are sequentially and spacedly arranged in the direction from the first position to the second position, and the elastic member (140) is limited between the first stop edge (131) and the second stop edge (122).

6. The fiber optic connector assembly of claim 3, wherein, The adapter (200) further comprises a baffle (230) connected with the adapter body (210), the baffle (230) and the first elastic arm (220) are oppositely and spacedly arranged in a direction perpendicular to the plug-in direction, and in the case that the connector (100) is connected with the adapter (200), the first end of the first limiting member (130) extends into a guide gap (201) between the baffle (230) and the first elastic arm (220) to guidely cooperate with the inner wall of the guide gap (201) in the plug-in direction.

7. The fiber optic connector assembly of claim 6, wherein, The baffle (230) and the first elastic arm (220) are both connected with the end portion where the aperture of the jack (211) is located and both extend in the plug-in direction.

8. The fiber optic connector assembly of claim 7, wherein, The baffle (230) extends along the end portion where the aperture of the jack (211) is located to form a ring structure.

9. The fiber optic connector assembly of claim 8, wherein, In the plug-in direction, the extension length of the baffle (230) is greater than the extension length of the first elastic arm (220).

10. The fiber optic connector assembly of claim 3, wherein, The base (120) further has a second groove (123) extending in the plug-in direction, the inner wall of the first limiting member (130) is provided with a second protrusion (132), the second protrusion (132) cooperates with the second groove (123), in the case that the first limiting member (130) slides to the first position, the second protrusion (132) is in limiting contact with the first end portion of the second groove (123), and in the case that the first limiting member (130) slides to the second position, the second protrusion (132) is in limiting contact with the second end portion of the second groove (123), wherein the first end portion of the second groove (123) is opposite to the second end portion of the second groove (123) in the plug-in direction.

11. The fiber optic connector assembly of claim 3, wherein, The inner wall of the first limiting member (130) is provided with a third protrusion (133), the base (120) is provided with a fourth protrusion (124), and the first limiting member (130) can rotate around its own central axis, when the first limiting member (130) rotates to a position where the third protrusion (133) is opposite to the fourth protrusion (124), the third protrusion (133) and the fourth protrusion (124) are in limiting cooperation to limit the movement of the first limiting member (130) from the first position to the second position.

12. The fiber optic connector assembly of claim 3, wherein, The outer wall of the first limiting member (130) is provided with an anti-skid groove (134).

13. The fiber optic connector assembly of claim 1, wherein, The shape of the head (110) is matched with the profile of the jack (211). The outer wall of the first limiting member (130) is provided with an anti-skid groove (134).

14. The fiber optic connector assembly of claim 1, wherein, Part of the base (120) extends into the insertion hole (211), and the optical fiber connection assembly further comprises a first sealing ring (300) sealingly connected between the base (120) and the inner wall of the insertion hole (211).

15. The fiber optic connector assembly of claim 1, wherein, The adapter (200) further comprises a fixing nut (240) and a second sealing ring (250), the adapter body (210) has a flange (212), an outer surface of the adapter body (210) is provided with external threads, the fixing nut (240) is threadedly connected with the external threads, and the second sealing ring (250) is sleeved on the adapter body (210) and located between the fixing nut (240) and the flange (212).

16. The fiber optic connector assembly of claim 1, wherein, The optical fiber connection assembly further comprises a dustproof cap (400) having a dustproof inner cavity with an open end, and the dustproof cap (400) is used for being plugged with the base (120) to make the head (110) located in the dustproof inner cavity when the connector (100) is separated from the adapter (200).

17. The fiber optic connector assembly of claim 16, wherein, The dustproof cap (400) comprises a dustproof cap body (410) and a pulling part (420), the dustproof cap body (410) is provided with the dustproof inner cavity, the pulling part (420) is connected with the dustproof cap body (410) and located on a side away from the opening of the dustproof cap body (410), and the pulling part (420) is provided with a pulling hole (421).

18. The fiber optic connector assembly of claim 17, wherein, The pulling part (420) is rotationally connected with the dustproof cap body (410) in the direction of the central axis of the dustproof cap body (410).

19. The fiber optic connector assembly of claim 17, wherein, The optical fiber connection assembly further comprises a dustproof plug (500) used for being plugged with the insertion hole (211) when the connector (100) is separated from the adapter (200).

20. The fiber optic connector assembly of claim 19, wherein, The optical fiber connection assembly further comprises a third sealing ring (600) sealingly connected between the dustproof plug (500) and the inner wall of the insertion hole (211).

Images