CN118050859A

CN118050859A - Optical fiber connection assembly

Info

Publication number: CN118050859A
Application number: CN202410454405.6A
Authority: CN
Inventors: 马爱萍; 谢云鹏; 杨立平; 何志敏; 杨国威; 栾添; 杨阳
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2024-04-16
Filing date: 2024-04-16
Publication date: 2024-05-17
Anticipated expiration: 2044-04-16
Also published as: CN118050859B

Abstract

The invention discloses an optical fiber connection assembly, which comprises a connector and an adapter, wherein: the adapter comprises an adapter body and a first elastic arm, wherein the adapter body is provided with a jack, and the first elastic arm is connected with the adapter body; the connector comprises a head part, a base part and a first limiting part, wherein the head part is connected with the base part, the first limiting part is arranged on the base part, one of the first elastic arm and the base part is provided with a first protrusion, and the other one is provided with a first groove; under the condition that the connector is connected with the adapter, the head is in plug-in fit with the jack, the first protrusion is in positioning fit with the first groove in the plug-in direction of the head and the jack, and the first limiting piece is in limiting contact with the first elastic arm so as to limit deformation of the first elastic arm to enable the first protrusion to be separated from the first groove. The scheme can solve the problem that the connector and the adapter in the related technology are easy to loose in the plugging state.

Description

Optical fiber connection assembly

Technical Field

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

Background

With the development of 5G/F5G and the next generation of fixed networks and pre-connectorization technology, fiber optic connection assemblies for indoor and outdoor use are becoming an essential product of access network backbone segments and wire-harness segments, especially in FTTR (Fiber to The Room, fiber-to-room) fiber optic connections.

In the related art, an optical fiber connection assembly mainly includes a plug-fit connector and an adapter, and in order to improve the stability of the connection of the connector and the adapter after the plug-fit, a friction protrusion is generally provided on one of the connector and the adapter, and a friction recess is provided on the other of the connector and the adapter, so that locking is achieved by friction fit of the friction protrusion or the friction recess. However, when the locking of the connector and the adapter is achieved by friction fit using the friction protrusion or the friction recess, locking ability thereof is limited, so that the connector and the adapter are liable to come loose in the plugged state.

Disclosure of Invention

The invention discloses an optical fiber connecting assembly, which is used for solving the problem that a connector and an adapter in the related art are easy to loose in a plugging state.

In order to solve the technical problems, the invention is realized as follows:

The application discloses an optical fiber connection assembly, which comprises a connector and an adapter, wherein:

The adapter comprises an adapter body and a first elastic arm, wherein the adapter body is provided with a jack, and the first elastic arm is connected with the adapter body;

The connector comprises a head part, a base part and a first limiting part, wherein the head part is connected with the base part, the first limiting part is arranged on the base part, one of the first elastic arm and the base part is provided with a first protrusion, and the other one of the first elastic arm and the base part is provided with a first groove;

Under the condition that the connector is connected with the adapter, the head is in plug-in fit with the jack, the first protrusion is in positioning fit with the first groove in the plug-in direction of the head and the jack, and the first limiting piece is in limiting contact with the first elastic arm so as to limit deformation of the first elastic arm to enable the first protrusion to be separated from the first groove.

The technical scheme adopted by the invention can achieve the following technical effects:

According to the optical fiber connection assembly disclosed by the embodiment of the application, the adapter is arranged to be in a structure comprising the adapter body and the first elastic arm, the connector is arranged to be in a structure comprising the head part, the base part and the first limiting piece, one of the first elastic arm and the base part is provided with the first protrusion, and the other one of the first elastic arm and the base part is provided with the first groove, so that the head part is in plug-in fit with the jack under the condition that the connector is connected with the adapter, and further the communication connection between the connector and the access network wire section or the terminal can be realized under the condition that the access network wire section or the terminal is inserted into the adapter. The first protrusion is matched with the first groove in a positioning mode in the plugging direction of the head and the jack, so that the connector and the adapter are connected in the plugging direction through plugging, and meanwhile further positioning connection can be achieved through the matching of the first protrusion and the first groove, and the connector and the adapter are connected more stably. Through setting up first locating part for first locating part and the spacing contact of first elastic arm, thereby can restrict first elastic arm deformation and make first arch and first recess separation, and then can promote the stability that connector and adapter are connected effectively.

Drawings

FIG. 1 is a schematic diagram of an optical fiber connection assembly according to an embodiment of the present invention;

FIG. 2 is an enlarged partial schematic view of FIG. 1;

FIG. 3 is a schematic illustration of the connector and adapter in a disconnected state;

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

FIG. 5 is a schematic view of the third protrusion and the fourth protrusion in the second mating state, wherein the schematic view of the internal structure is partially shown;

FIG. 6 is a schematic illustration of the mating of the connector with the dust cap;

FIG. 7 is an exploded view of the dust cap;

FIG. 8 is a cross-sectional view of the connector in a mated state with the dust cap;

FIG. 9 is a schematic view of the connector at a first view angle;

FIG. 10 is a schematic view of the connector at a second view angle;

FIG. 11 is a schematic illustration of the mating of the adapter with the dust plug;

FIG. 12 is a cross-sectional view of the adapter and dust plug in a mated condition;

Fig. 13 is a schematic view of the structure of the adapter.

Reference numerals illustrate:

100-connector, 110-header, 111-ferrule, 112-ferrule holder, 113-cable core, 114-cable, 120-base, 121-first groove, 122-second rib, 123-second groove, 124-fourth protrusion, 130-first retainer, 131-first rib, 132-second protrusion, 133-third protrusion, 134-anti-slip groove, 140-resilient member,

200-Adapter, 201-guide gap, 210-adapter body, 211-jack, 212-flanging, 220-first elastic arm, 221-first protrusion, 230-stop eave, 240-fixing nut, 250-second sealing ring

300-A first sealing ring,

400-Dustproof cap, 410-dustproof cap body, 420-traction part, 421-traction hole, 430-second elastic arm, 431-fifth bulge,

500-Dustproof plug,

600-Third sealing ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

At present, in most of indoor WiFi of wide users, a router is connected through a modem, and WiFi signals of the router are covered. Routers typically support both 2.4G and 5G bands. Although the 2.4G frequency band can support the highest speed of 300Mbps, the actual use effect is much worse due to the larger interference ratio of the frequency band. The application of the high bandwidth of the user must use the 5G frequency band, but the WiFi signal of the 5G frequency band has weak wall penetrating capability, which brings great inconvenience to the application of the high bandwidth of some large-sized users. And FTTR (Fiber to The Room, optical fiber to room) adopts 1 main light cat and a plurality of slave light cats to carry out indoor WiFi coverage, and the main light cat and the slave light cat are connected by adopting a butterfly-shaped optical cable or a hidden optical cable, so that the indoor WiFi signal intensity can be improved. The optical fiber connection assembly disclosed by the embodiment of the application can be used for optical fiber connection of FTTH (Fiber To The Home, outdoor and indoor), FTTB (Fiber To The Building, optical fiber to building) and the like, and can also be used for optical fiber connection of FTTR (Fiber to The Room, optical fiber to room).

The technical scheme disclosed by each embodiment of the invention is described in detail below with reference to the accompanying drawings.

Referring to fig. 1-13, an embodiment of the present invention discloses a fiber optic connection assembly, which includes a connector 100 and an adapter 200.

It should be noted that, the optical fiber connection assembly disclosed in the embodiment of the present application may be a multi-core optical fiber connection assembly or a single-core optical fiber connection assembly.

Where the fiber optic connection assembly is a multi-core, multi-channel plug-in connector, the connector 100 may be provided with a plurality of optical cable cores 113 therein, for example, the connector 100 may be a connector including 2 to 12 optical cable cores 113 arranged side by side, and of course, the connector 100 may be a connector including other optical cable cores 113, for example, 24 optical cable cores 113. Adapter 200 is an adapter that mates with a plurality of rows of cable cores 113 of connector 100.

When the optical fiber connection assembly is a single-core optical fiber connection assembly, the connector 100 is a single-core single-channel plug-in connector, and an optical cable core 113 is disposed inside the connector 100. The adapter 200 is an adapter that mates with the single row of cable cores 113 of the connector 100.

The connector 100 may be a portion of an access network backbone section, where the connector 100 is in plug-fit with one end of the adapter 200, and the other end of the adapter 200 may be used in plug-fit with an access network wire section or a terminal, so as to implement communication connection between the access network backbone section and the access network wire section or the terminal.

The adapter 200 includes an adapter body 210 and a first elastic arm 220, the adapter body 210 is provided with a jack 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 stopper 130, where the head 110 is connected to the base 120, and the first stopper 130 is disposed on the base 120. Specifically, the head 110 is disposed coaxially with the base 120, alternatively, the first stopper 130 may be sleeved outside the base 120 or on a sidewall of the base 120.

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.

With the connector 100 connected to the adapter 200, the header 110 is in plug-fit with the insertion hole 211, and the first protrusion 221 is in positioning fit with the first groove 121 in the plug-in direction of the header 110 and the insertion hole 211. 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 and prevent the first protrusion 221 from being separated from the first groove 121. The notch orientation of the first groove 121 may be perpendicular or approximately perpendicular to the mating direction.

When the connector 100 and the adapter 200 need to be separated, the first limiting member 130 can be separated from the first elastic arm 220, so that when the first protrusion 221 is driven to be separated from the first groove 121 under the action of external force, the first elastic arm 220 can deform under the action of the notch of the first protrusion 221 and the first groove 121, and the first protrusion 221 is separated from the first groove 121 and the head 110 is separated from the jack 211, so that the connector 100 and the adapter 200 are separated.

The optical fiber connection assembly disclosed in the embodiment of the present application is configured by arranging the adapter 200 to include the adapter body 210 and the first elastic arm 220, arranging the connector 100 to include the head 110, the base 120 and the first limiting member 130, arranging one of the first elastic arm 220 and the base 120 to include the first protrusion 221, and arranging the other to include the first groove 121, so that the head 110 is in plug-in fit with the insertion hole 211 when the connector 100 is connected with the adapter 200, and further, when an access network wire segment or a terminal is inserted into the adapter 200, the connector 100 can be in communication connection with the access network wire segment or the terminal. The first protrusion 221 and the first groove 121 are positioned to mate in the plugging direction of the head 110 and the insertion hole 211, so that the connector 100 and the adapter 200 are connected more stably in the plugging direction. By arranging the first limiting member 130, the first limiting member 130 is in limiting contact with the first elastic arm 220, so that deformation of the first elastic arm 220 can be limited, the first protrusion 221 is separated from the first groove 121, and further, the connection stability of the connector 100 and the adapter 200 can be effectively improved.

Specifically, the limiting contact between the first limiting member 130 and the first elastic arm 220 may be that the first limiting member 130 abuts against an end portion of the free end of the first elastic arm 220, so as to limit the deformation of the first elastic arm 220 through the friction fit between the first limiting member 130 and the first elastic arm 220. Of course, the end of the free end of the first elastic arm 220 may be provided with a limiting hole, and the first limiting member may extend into the limiting hole to limit the deformation of the first elastic arm 220. Of course, the structure of the first limiting member 130 in limiting contact with the first elastic arm 220 may also be other structures, which will be described later.

Alternatively, the first limiting member 130 may be an elastic rod, and one end of the elastic rod may be fixedly disposed on the base 120, and the other end of the elastic rod may press on the first elastic arm 220 in a case where the elastic rod is not subjected to an external force, so that the first elastic arm 220 limits the first protrusion 221 to be separated from the first groove 121. When the elastic rod is subjected to an external force, the external force can drive the other end of the elastic rod to be separated from the first elastic arm 220, so that the first protrusion 221 and the first groove 121 can be separated.

In another embodiment, the first limiting member 130 may be movably disposed on the base 120, where the first limiting member 130 has a first position and a second position. The first limiting member 130 may be rotatably disposed on the base 120 or movably disposed on the base 120, and the manner in which the first limiting member 130 is movably disposed on the base 120 is not particularly limited in the embodiment of the present application. With the first stopper 130 in the first position, the first stopper 130 may be in limiting contact with the first elastic arm 220. With the first stopper 130 in the second position, the first stopper 130 may be separated from the first elastic arm 220.

In the optical fiber connection assembly disclosed in the embodiment of the present application, the first limiting member 130 is movably disposed on the base 120, so that when the connector 100 is connected to 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 deformation of the first elastic arm 220 to separate the first protrusion 221 from the first groove 121, and when the first limiting member 130 moves to the second position, the first limiting member 130 is separated from the first elastic arm 220, thereby facilitating separation of the connector 100 from the adapter 200.

Alternatively, the first limiting member 130 may be a cylindrical structural member, and the first limiting member 130 may be slidably sleeved on the base 120 along the plugging direction. In the case that the first limiting member 130 slides to the first position, the first end of the first limiting member 130 may be sleeved outside at least a portion of the first elastic arm 220, and the first end of the first limiting member 130 may clamp at least a portion of the first elastic arm 220 with the base 120 to limit deformation of the first elastic arm 220. The first end of the first stopper 130 may be separated from the first elastic arm 220 in the case that the first stopper 130 slides to the second position.

According to the optical fiber connection assembly disclosed by the embodiment of the application, the first limiting piece 130 is arranged as the cylindrical structural piece, so that the first limiting piece 130 is sleeved on the base 120 in a sliding manner along the plugging direction, the first limiting piece 130 slides along the base 120 to be more stable when the first position and the second position are switched, the first limiting piece 130 is mounted more stably, and the first limiting piece 130 can also protect the sleeved part of the base 120.

In order to make the connection of the connector 100 with the adapter 200 more reliable, the connector 100 may optionally further include an elastic member 140, a first end of the elastic member 140 may be connected with the first limiting member 130, a second end of the elastic member 140 may be connected with the base 120, and the elastic member 140 may be used to urge the first limiting member 130 to move from the second position to the first position.

Specifically, the elastic member 140 may be a spring, which is sleeved on the base 120, and may be in a compressed state when the external force drives the first limiting member 130 to move to the second position, and may drive the first limiting member 130 to move from the second position to the first position when the external force acting on the first limiting member 130 disappears. Of course, the elastic member 140 may have other structures, such as an elastic rubber member, and the type of the elastic member 140 is not particularly limited in the embodiments of the present application.

The optical fiber connection assembly disclosed in the embodiment of the application is provided with the elastic element 140, so that after the connector 100 is connected with the adapter 200, the elastic element 140 can drive the first limiting element 130 to move from the second position to the first position, thereby realizing the automatic limiting contact between the first limiting element 130 and the first elastic arm 220, and after the connector 100 is connected with the adapter 200, the elastic element 140 can drive the first limiting element 130 to be kept at the first position, thereby ensuring the connection between the connector 100 and the adapter 200 to be more reliable.

In order to facilitate the elastic member 140 to apply a force to the first limiting member 130, optionally, the inner wall of the first limiting member 130 may have a first flange 131, the base 120 may have a second flange 122, and the first limiting member 130 may be sleeved outside the second flange 122, and the first flange 131 and the second flange 122 may be sequentially arranged at intervals in a direction pointing to the second position at the first position, and the elastic member 140 may be limited between the first flange 131 and the second flange 122. The direction in which the first position points to the second position may be parallel to the plugging direction.

In the optical fiber connection assembly disclosed in the embodiment of the application, the first flange 131 is disposed on the inner wall of the first limiting member 130, and the second flange 122 is disposed on the base 120, so that the elastic member 140 can be limited between the first flange 131 and the second flange 122, thereby facilitating the elastic member 140 to apply an acting force to the first limiting member 130. The first limiting piece 130 is sleeved outside the second flange 122, so that the appearance performance of the optical fiber connecting assembly is optimized, the first limiting piece 130 is sleeved on the elastic piece 140, the elastic piece 140 can be protected, the first limiting piece 130 can limit the elastic piece 140 in the compression direction perpendicular to the elastic piece 140, and the elastic piece 140 can be prevented from being bent and failing in the compression state.

In order to make the plugging of the connector 100 and the adapter 200 during the plugging and mating process more accurate, the adapter 200 may optionally further include a blocking eave 230, where the blocking eave 230 may be connected to the adapter body 210, and the blocking eave 230 may be opposite to and spaced from the first elastic arm 220 in a direction perpendicular to the plugging and mating direction. When the connector 100 is connected to the adapter 200, the first end of the first stopper 130 may extend into the guide gap 201 between the eave 230 and the first elastic arm 220 to be in guide-fit with the inner wall of the guide gap 201 in the plugging direction.

In the optical fiber connection assembly disclosed in the embodiment of the present application, the blocking eave 230 is disposed, so that the guiding gap 201 is formed between the blocking eave 230 and the first elastic arm 220, and when the connector 100 is connected with the adapter 200, the first end of the first limiting member 130 can extend into the guiding gap 201 between the blocking eave 230 and the first elastic arm 220, so as to be in guiding fit with the inner wall of the guiding gap 201 in the plugging direction, thereby making the plugging fit between the connector 100 and the adapter 200 more accurate.

Alternatively, the blocking eave 230 and the first elastic arm 220 may be connected to the end portion where the hole of the insertion hole 211 is located, and extend along the insertion direction, so that the structure of the adapter 200 is relatively simple, and the thickness of the adapter 200 perpendicular to the insertion direction is relatively small, thereby facilitating the miniaturization design of the adapter 200.

In another embodiment, both the blocking eave 230 and the first elastic arm 220 may be connected to an outer wall of the adapter body 210 opposite to the jack, however, the blocking eave 230 and the first elastic arm 220 may be arranged in other manners, and the embodiments of the present application do not limit the arrangement manners of the blocking eave 230 and the first elastic arm 220.

Further, the blocking eave 230 may extend along the end portion where the aperture of the insertion hole 211 is located to form an annular structural member, so that the blocking eave 230 may be looped outside the first elastic arm 220, so that the blocking eave 230 may protect the first elastic arm 220, and the blocking eave 230 and the first elastic arm 220 may form a labyrinth seal structure, so as to seal the insertion fit between the head 110 of the connector 100 and the insertion hole 211 of the adapter 200.

In order to make the blocking eave 230 better protected from the first elastic arm 220, optionally, the extending length of the blocking eave 230 may be greater than that of the first elastic arm 220 in the plugging direction, so that the blocking eave 230 can better protect the first elastic arm 220 from the first elastic arm 220.

In order to avoid unrestricted movement of the first limiting member 130, optionally, the base 120 may further be provided with a second groove 123 extending along the plugging direction, and the inner wall of the first limiting member 130 may be provided with a second protrusion 132, and the second protrusion 132 may be engaged with the second groove 123. The second protrusion 132 may be in limiting contact with the first end of the second groove 123 in the case that the first limiting member 130 slides to the first position, and the second protrusion 132 may be in limiting contact with the second end of the second groove 123 in the case that the first limiting member 130 slides to the second position, wherein the first end of the second groove 123 may be opposite to the second end of the second groove 123 in the plugging direction.

According to the optical fiber connecting assembly disclosed by the embodiment of the application, the second groove 123 extending along the plugging direction is formed in the base 120, and the second protrusion 132 is arranged on the inner wall of the first limiting member 130, so that the second protrusion 132 is in limiting contact with the first end part of the second groove 123 under the condition that the first limiting member 130 slides to the first position, and the second protrusion 132 can be in limiting contact with the second end part of the second groove 123 under the condition that the first limiting member 130 slides to the second position, thereby avoiding unlimited movement of the first limiting member 130 and preventing the first limiting member 130 from impacting the first elastic arm 220.

In order to prevent the connector 100 from being separated from the adapter 200 due to a person's misoperation, optionally, the inner wall of the first limiting member 130 may be disposed on the third protrusion 133, the base 120 may be disposed with the fourth protrusion 124, and the first limiting member 130 may rotate around its own central axis, where it is noted that the central axis of the first limiting member 130 is parallel to the plugging direction. 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 is in limiting engagement with the fourth protrusion 124 to limit the first limiting member 130 from moving from the first position to the second position. The first stopper 130 may be moved from the first position to the second position when the first stopper 130 is rotated to a position where the third protrusion 133 is misaligned with the fourth protrusion 124.

In the optical fiber connection assembly disclosed in the embodiment of the application, the third protrusion 133 is disposed on the inner wall of the first limiting member 130, the fourth protrusion 124 is disposed on the base 120, and the first limiting member 130 can rotate around its own central axis, so that when the connector 100 is connected with the adapter 200, the first limiting member 130 can be rotated to a position where the third protrusion 133 is opposite to the fourth protrusion 124, and further the third protrusion 133 is in limiting fit with the fourth protrusion 124, so as to limit the first limiting member 130 from moving from the first position to the second position, thereby preventing the connector 100 from being separated from the adapter 200 due to misoperation of personnel.

To facilitate grasping by the user, the outer wall of the first stopper 130 may optionally be provided with a slip-resistant groove 134, thereby making it easier for the user to grasp the adapter 200.

In order to make the plugging fit of the connector 100 with the adapter 200 more stable, optionally, the shape of the head 110 may be adapted to the contour of the insertion hole 211, so as to avoid an unnecessary gap between the two, so that the inner walls of the head 110 and the insertion hole 211 may be in a limiting fit in a direction perpendicular to the plugging direction, and further, the plugging fit of the connector 100 with the adapter 200 is more stable.

For better sealing protection of the mating portion of the head 110 and the receptacle 211, optionally, a portion of the base 120 may extend into the receptacle 211, and the optical fiber connection assembly may further include a first sealing ring 300, where the first sealing ring 300 may be sealingly connected between the base 120 and an inner wall of the receptacle 211, so that the first sealing ring 300 may better seal protection of the mating portion of the head 110 and the receptacle 211.

In some fiber optic connection assemblies used in outdoor settings, the adapter 200 is required to be mounted in a mounting hole of a wall or a bracket, and in order to seal the adapter 200 with the mounting Kong Jiaohao when mounted in the mounting hole of the wall or the bracket, the adapter 200 may optionally further include a fixing nut 240 and a second sealing ring 250, the adapter body 210 may have a flange 212, the outer surface of the adapter body 210 may have external threads, the fixing nut 240 may be in threaded engagement with the external threads, and the second sealing ring 250 may be sleeved on the adapter body 210 and located between the fixing nut 240 and the flange 212.

When the adapter body 210 is installed in the installation hole of the wall body or the bracket, the second sealing ring 250 is opposite to the inner wall of the installation hole, and the fixing nut 240 is in threaded fit with the external thread by rotating the fixing nut 240, so that the fixing nut 240 moves along the outer surface of the adapter body 210 to extrude the second sealing ring 250, the second sealing ring 250 deforms towards the inner wall direction of the installation hole under the extrusion of the fixing nut 240 and the flange 212, so that the second sealing ring 250 is in sealing connection with the inner wall of the installation hole, and the adapter 200 and the installation hole can be better in sealing connection.

In order to protect the head 110 of the connector 100 in the case that the connector 100 is separated from the adapter 200, the head 110 of the connector 100 is exposed to the outside and is easily damaged, the optical fiber connection assembly may optionally further include a dust cap 400, and the dust cap 400 may have a dust cavity with one end opened, and the dust cap 400 may be used to be inserted into the base 120 in the case that the connector 100 is separated from the adapter 200, so that the head 110 is positioned in the dust cavity, thereby protecting the head 110.

Alternatively, the open end of the dust cap 400 may have a second elastic arm 430, the second elastic arm 430 may be provided with a fifth protrusion 431, and the base 120 is provided with the first groove 121. In the case that the dust cap 400 is inserted into the base 120, the fifth protrusion 431 may be aligned with the first groove 121 in the insertion direction of the head 110 and the dust cap 400, and the first stopper 130 may be in limited contact with the second elastic arm 430 to limit deformation of the second elastic arm 430 so that the fifth protrusion 431 is separated from the first groove 121, thereby making connection of the dust cap 400 and the base 120 more stable.

As shown in fig. 4 and 5, in the embodiment in which the first stopper 130 is movably disposed on the base 120, and the first stopper 130 has the first position and the second position, in order to prevent the connector 100 from being separated from the dust cap 400 due to a person's misoperation, optionally, an inner wall of the first stopper 130 may be disposed on the third protrusion 133, the base 120 may be disposed with the fourth protrusion 124, and the first stopper 130 may rotate around its own central axis, and it should be noted that the central axis of the first stopper 130 is parallel to the plugging direction. When the first stopper 130 rotates to a position where the third protrusion 133 is opposite to the fourth protrusion 124, the third protrusion 133 is in a stopper fit with the fourth protrusion 124 to restrict the first stopper 130 from moving from the first position to the second position, so that the connector 100 can be prevented from being separated from the dust cap 400 due to a person's misoperation. The first stopper 130 may be moved from the first position to the second position when the first stopper 130 is rotated to a position where the third protrusion 133 is misaligned with the fourth protrusion 124.

In some application scenarios, the connector 100 needs to pass through some pipes during the installation process, and therefore, the connector 100 needs to be pulled to pass through the pipes, in order to facilitate the connector 100 pulling, optionally, the dust cap 400 may include a dust cap body 410 and a pulling portion 420, the dust cap body 410 may be provided with a dust-proof inner cavity, the pulling portion 420 may be connected with the dust cap body 410 and located on a side facing away from the opening of the dust cap body 410, and the pulling portion 420 may be provided with a pulling hole 421, so that the connector 100 is convenient to pull.

In some applications, when the connector 100 is pulled, the connector 100 is sometimes rotated around a direction perpendicular to the pulling direction, which may easily cause damage to the connector 100. In order to prevent the connector 100 from being damaged during the pulling process, the pulling portion 420 and the dust cap body 410 may be rotatably coupled in a direction around the central axis of the dust cap body 410. The central axis direction of the dust cap body 410 is parallel to the plugging direction and the pulling direction.

The optical fiber connection assembly disclosed in the embodiment of the application can rotate and connect the traction part 420 and the dust cap body 410 around the central axis direction of the dust cap body 410, so that when the connector 100 is pulled, the dust cap body 410 can rotate around the direction perpendicular to the traction direction, and the connector 100 does not rotate or has a small rotation angle, thereby preventing the connector 100 from being damaged in the traction process.

In the case where the connector 100 is separated from the adapter 200, the insertion holes 211 of the adapter 200 are exposed to the outside, so that dust or the like is easily accumulated on the inner walls of the insertion holes 211, and further, in the case where the connector 100 is connected to the adapter 200, a problem of inaccurate fitting positions of the connector 100 and the adapter 200 is easily caused. In order to make the mating position of the connector 100 and the adapter 200 more accurate, optionally, the optical fiber connection assembly may further include a dust plug 500, where the dust plug 500 may be used to be in plug-fit with the insertion hole 211 when the connector 100 is separated from the adapter 200, so that the insertion hole 211 may be plugged, and dust may be prevented from accumulating on the inner wall of the insertion hole 211, so that the mating position is relatively more accurate when the connector 100 is connected to the adapter 200.

To further better seal the receptacle 211, the fiber optic connection assembly may optionally further include a third seal ring 600, and the third seal ring 600 may be sealingly connected between the dust plug 500 and the inner wall of the receptacle 211, so that the receptacle 211 may be better sealed.

It should be further noted that, the connector 100 includes a ferrule 111, a ferrule holder 112, an optical cable core 113 and an optical cable 114, the ferrule 111 may be disposed on the ferrule holder 112, and the ferrule 111 may be disposed at a front end of the connector 100 and configured to be inserted into the insertion hole 211 to be communicatively connected to an access network wire segment or a terminal, etc. The optical cable core 113 is disposed inside the ferrule holder 112, and at least a portion of the optical cable 114 is disposed inside the ferrule holder 112 and connected to the optical cable core 113. Wherein the ferrule 111, a portion of the ferrule holder 112, and a portion of the cable core 113 form the head 110 of the connector 100; another portion of the ferrule holder 112, another portion of the cable core 113, and a portion of the cable 114 form a base 120.

The foregoing embodiments of the present invention mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in view of brevity of line text, no further description is provided herein.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims

1. A fiber optic connection assembly comprising a connector (100) and an adapter (200), wherein:

The adapter (200) comprises an adapter body (210) and a first elastic arm (220), wherein the adapter body (210) is provided with a jack (211), and the first elastic arm (220) is connected with the adapter body (210);

The connector (100) comprises a head (110), a base (120) and a first limiting piece (130), wherein the head (110) is connected with the base (120), the first limiting piece (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 is provided with a first groove (121);

with the connector (100) connected with the adapter (200), the head (110) is in plug-in fit with the insertion hole (211), the first protrusion (221) is in positioning fit with the first groove (121) in the plug-in direction of the head (110) and the insertion hole (211), and the first limiting piece (130) is in limiting contact with the first elastic arm (220) so as to limit deformation of the first elastic arm (220) to separate the first protrusion (221) from the first groove (121).

2. The fiber optic connection assembly of claim 1, wherein the first stop member (130) is movably disposed on the base (120), the first stop member (130) having a first position and a second position;

-said first stop (130) is in stop contact with said first elastic arm (220) with said first stop (130) in said first position;

the first stop (130) is separated from the first resilient arm (220) with the first stop (130) in the second position.

3. The optical fiber connection assembly according to claim 2, wherein the first limiting member (130) is a cylindrical structural member, and the first limiting member (130) is slidably sleeved on the base (120) along the plugging direction;

Under the condition that 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) so as to limit deformation of the first elastic arm (220);

The first end of the first stopper (130) is separated from the first elastic arm (220) with the first stopper (130) slid to the second position.

4. A fiber optic connection assembly according to claim 3, wherein the connector (100) further comprises a resilient member (140), a first end of the resilient member (140) being connected to the first stop member (130), a second end of the resilient member (140) being connected to the base (120), the resilient member (140) being adapted to urge the first stop member (130) from the second position to the first position.

5. The optical fiber connection assembly according to claim 4, wherein the inner wall of the first limiting member (130) is provided with a first flange (131), the base (120) is provided with a second flange (122), the first limiting member (130) is sleeved on the second flange (122), the first flange (131) and the second flange (122) are sequentially arranged at intervals in the direction of pointing to the second position at the first position, and the elastic member (140) is limited between the first flange (131) and the second flange (122).

6. A fiber optic connection assembly according to claim 3, wherein the adapter (200) further comprises a stop ledge (230), the stop ledge (230) being connected to the adapter body (210), the stop ledge (230) being arranged opposite and spaced from the first resilient arm (220) perpendicular to the plugging direction, the first end of the first stop member (130) extending into a guiding gap (201) between the stop ledge (230) and the first resilient arm (220) for guiding engagement with an inner wall of the guiding gap (201) in the plugging direction when the connector (100) is connected to the adapter (200).

7. The fiber optic connection assembly of claim 6, wherein the stop edge (230) and the first resilient arm (220) are each connected to an end of the receptacle (211) where the aperture is located and each extend in the mating direction.

8. The fiber optic connection assembly of claim 7, wherein the stop edge (230) extends along an end of the receptacle (211) where the aperture is located to form an annular structural member.

9. The fiber optic connection assembly of claim 8, wherein the extended length of the stop edge (230) is greater than the extended length of the first resilient arm (220) in the mating direction.

10. A fiber optic connection assembly according to claim 3, wherein the base (120) is further provided with a second recess (123) extending in the plugging direction, the inner wall of the first stopper (130) is provided with a second protrusion (132), the second protrusion (132) cooperates with the second recess (123), the second protrusion (132) is in limited contact with the first end of the second recess (123) in case the first stopper (130) is slid to the first position, and the second protrusion (132) is in limited contact with the second end of the second recess (123) in case the first stopper (130) is slid to the second position, wherein the first end of the second recess (123) is opposite to the second end of the second recess (123) in the plugging direction.

11. A fiber optic connection assembly according to claim 3, wherein the inner wall of the first stop member (130) is provided with a third projection (133), the base (120) is provided with a fourth projection (124), the first stop member (130) is rotatable about its own central axis, and the third projection (133) is in stop engagement with the fourth projection (124) to limit movement of the first stop member (130) from the first position to the second position when the first stop member (130) is rotated to a position in which the third projection (133) is opposite the fourth projection (124).

12. A fiber optic connection assembly according to claim 3, wherein the outer wall of the first stop member (130) is provided with an anti-slip groove (134).

13. The fiber optic connection assembly of claim 1, wherein the head (110) is shaped to fit the contour of the receptacle (211).

14. The fiber optic connection assembly of claim 1, wherein a portion of the base (120) extends into the receptacle (211), the fiber optic connection assembly further comprising a first seal ring (300), the first seal ring (300) being sealingly connected between the base (120) and an inner wall of the receptacle (211).

15. The fiber optic connection assembly of claim 1, wherein the adapter (200) further comprises a retaining nut (240) and a second seal ring (250), the adapter body (210) has a flange (212), an outer surface of the adapter body (210) has an external thread, the retaining nut (240) is in threaded engagement with the external thread, and the second seal ring (250) is sleeved on the adapter body (210) and is located between the retaining nut (240) and the flange (212).

16. The fiber optic connection assembly of claim 1, further comprising a dust cap (400), the dust cap (400) having a dust lumen open at one end, the dust cap (400) being configured to mate with the base (120) with the connector (100) separated from the adapter (200) such that the head (110) is positioned within the dust lumen.

17. The fiber optic connection assembly of claim 16, wherein the dust cap (400) includes a dust cap body (410) and a pulling portion (420), the dust cap body (410) defines the dust lumen, the pulling portion (420) is connected to the dust cap body (410) and is located on a side of the opening facing away from the dust cap body (410), and the pulling portion (420) defines a pulling hole (421).

18. The fiber optic connection assembly of claim 17, wherein the pulling portion (420) is rotatably coupled to the dust cap body (410) about a central axis of the dust cap body (410).

19. The fiber optic connection assembly of claim 17, further comprising a dust plug (500), the dust plug (500) for mating with the receptacle (211) when the connector (100) is separated from the adapter (200).

20. The fiber optic connection assembly of claim 19, further comprising a third seal ring (600), the third seal ring (600) being sealingly connected between the dust plug (500) and an inner wall of the receptacle (211).