CN113568110B

CN113568110B - Outdoor preformed optical fiber connector and adapter assembly

Info

Publication number: CN113568110B
Application number: CN202110793583.8A
Authority: CN
Inventors: 黄美金; 孙莹; 杨涛
Original assignee: Fiberhome Telecommunication Technologies Co Ltd
Current assignee: Fiberhome Telecommunication Technologies Co Ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2023-01-31
Anticipated expiration: 2041-07-08
Also published as: CN113568110A

Abstract

The invention relates to an outdoor preformed optical fiber connector and a connector and adapter assembly, comprising: the connector comprises a main body assembly and a locking mechanism, wherein the main body assembly comprises a connector body and an optical cable arranged at one end of the connector body, and the connector body is provided with a locking buckle; the positioning and locking assembly is sleeved outside the main body assembly and comprises an outer sleeve and a positioning ring which is used for being inserted into the adapter, the positioning ring is installed in the outer sleeve, and the positioning ring is provided with a limiting hole matched with the locking buckle; when the locking buckle is positioned in the limiting hole, the main body assembly is locked with the positioning locking assembly; when the outer sleeve is rotated along the circumferential direction of the connector body, the outer sleeve drives the locking buckle to be separated from the limiting hole, the main body component and the positioning locking component are unlocked and then replaced with the positioning locking component matched with the adapter, and the optical fiber connector and the adapter can be intercommunicated for use.

Description

Outdoor preformed optical fiber connector and adapter assembly

Technical Field

The invention relates to the field of optical fiber communication, in particular to an outdoor pre-terminated optical fiber connector, a connector and an adapter assembly.

Background

With The large-scale deployment of FTTH (Fiber To The Home), the construction cost is reduced, the construction technical requirements are reduced, and The application of pre-connection products which simplify The construction difficulty is wider and wider.

In the related art, there are many types of outdoor preformed end adapters applied outdoors in the market, the adapters of different manufacturers have different structural complexity, sizes and operation modes, and when the preformed end optical fiber connectors are connected to the adapters, the preformed end adapters of different manufacturers cannot be intercommunicated.

Therefore, there is a need for a new outdoor pre-terminated fiber optic connector that overcomes the above problems.

Disclosure of Invention

The embodiment of the invention provides an outdoor pre-terminating optical fiber connector and a connector and adapter assembly, which aim to solve the problems that in the related technology, adapters of different manufacturers have different structures, sizes and operation modes, and when the pre-terminating optical fiber connector is connected to the adapter, the pre-terminating adapters of different manufacturers cannot be communicated for use.

In a first aspect, an outdoor pre-terminated fiber optic connector is provided, comprising: the connector comprises a main body assembly and a locking mechanism, wherein the main body assembly comprises a connector body and an optical cable arranged at one end of the connector body, and the connector body is provided with a locking buckle; the positioning and locking assembly is sleeved outside the main body assembly and comprises an outer sleeve and a positioning ring which is used for being inserted into the adapter, the positioning ring is installed in the outer sleeve, and the positioning ring is provided with a limiting hole matched with the locking buckle; when the locking buckle is positioned in the limiting hole, the main body assembly is locked with the positioning locking assembly; when the outer sleeve rotates along the circumferential direction of the connector body, the outer sleeve drives the locking buckle to be separated from the limiting hole, and the main body assembly is unlocked with the positioning locking assembly.

In some embodiments, the outer sleeve is internally provided with an angle pin structure; an unlocking ring is sleeved outside the connector body and provided with a sliding groove matched with the angle pin structure; the outer sleeve is rotated along the circumferential direction of the connector body, the angle pin structure drives the unlocking ring to move along the axial direction of the connector body through the sliding groove, and meanwhile, the unlocking ring drives the locking buckle to be separated from the limiting hole.

In some embodiments, an unlocking buckle is arranged on the locking buckle, an unlocking boss is arranged in the unlocking ring, when the unlocking ring moves along the axial direction of the connector body, the unlocking boss abuts against the unlocking buckle, the unlocking boss drives the unlocking buckle and the locking buckle to move in the same direction close to the axis of the connector body, and the locking buckle is separated from the limiting hole.

In some embodiments, an elastic member is further sleeved outside the connector body, one end of the elastic member abuts against the unlocking ring, the other end of the elastic member abuts against the limiting surface of the connector body, and when the locking buckle is disengaged from the limiting hole, the elastic member is in a compressed state.

In some embodiments, an annular groove is formed outside the positioning ring, a first rib is arranged in the outer sleeve, and the first rib is clamped in the annular groove, so that the outer sleeve can rotate circumferentially relative to the positioning ring.

In some embodiments, the positioning ring is provided with at least one first accommodating hole penetrating through the wall thickness of the positioning ring, the first accommodating hole accommodates a steel ball for locking the adapter, and one side of the positioning ring, which is close to the outer sleeve, is also provided with a limiting buckle; and a second convex rib matched with the limiting buckle is further convexly arranged in the outer sleeve, and when the limiting buckle moves towards the direction close to the outer sleeve to pass over the second convex rib, the inner wall of the outer sleeve is abutted against the outer side of the steel ball.

In some embodiments, the outer sleeve has a first lumen and a second lumen in communication with the first lumen, the second lumen having an inner diameter smaller than the inner diameter of the first lumen; the second convex rib is arranged in the second inner cavity, when the limiting buckle passes through the second convex rib, the steel ball is correspondingly positioned in the first inner cavity, and a gap is formed between the steel ball and the inner wall of the first inner cavity; when the limiting buckle passes over the second convex rib, the steel ball is correspondingly positioned in the second inner cavity, and the steel ball is abutted against the inner wall of the second inner cavity.

In some embodiments, a first sealing groove is formed in an outer side of the positioning ring, a first sealing ring is installed in the first sealing groove, and the first sealing ring is clamped between the positioning ring and the outer sleeve.

In a second aspect, there is provided a connector and adapter assembly comprising: an adapter; and a fiber optic connector mated with the adapter, the fiber optic connector comprising: the connector comprises a main body assembly and a locking mechanism, wherein the main body assembly comprises a connector body and an optical cable arranged at one end of the connector body, and the connector body is provided with a locking buckle; the positioning and locking assembly is sleeved outside the main body assembly and comprises an outer sleeve and a positioning ring inserted in the adapter, the positioning ring is installed in the outer sleeve, and the positioning ring is provided with a limiting hole matched with the locking buckle; when the locking buckle is positioned in the limiting hole, the main body assembly is locked with the positioning locking assembly; when the outer sleeve rotates along the circumferential direction of the connector body, the outer sleeve drives the locking buckle to be separated from the limiting hole, and the main body assembly is unlocked with the positioning and locking assembly.

In some embodiments, the positioning ring has a first receiving hole, the first receiving hole receives a steel ball, the adapter has a second receiving hole, and when the steel ball is partially received in the second receiving hole and partially received in the first receiving hole, the adapter and the optical fiber connector are locked.

In some embodiments, the adapter includes an adapter body having a stop collar disposed outside the adapter body on a side of the second receiving hole remote from the fiber optic connector; the retaining ring contacts the stop ring when the adapter is locked with the fiber optic connector.

In some embodiments, a second sealing groove is further disposed outside the adapter body, the second sealing groove is located between the stop ring and the second receiving hole, a second sealing ring is disposed in the second sealing groove, and the second sealing ring is sandwiched between the adapter body and the positioning ring.

In some embodiments, the adapter comprises an adapter body provided with a positioning groove, the opening of which is flared outwards; the positioning ring is internally provided with a positioning key matched with the positioning groove, and the positioning ring and the adapter realize positioning through the positioning key and the positioning groove.

In some embodiments, the adapter includes an adapter main body, a receiving groove is formed in the adapter main body for receiving the connector body, a chute is further formed in one side of the adapter main body close to the optical fiber connector, the chute is communicated with the receiving groove, and the cross-sectional dimension of the chute is gradually increased from inside to outside.

In some embodiments, a clearance structure is further disposed at an end of the adapter main body close to the optical fiber connector, the clearance structure is communicated with the chute, a cross-sectional dimension of the clearance structure is greater than or equal to a maximum cross-sectional dimension of the chute, and the connector body sequentially enters the chute structure and the receiving groove from the clearance structure.

In some embodiments, when the connector body enters the clearance structure, an inner wall of the positioning ring contacts an outer surface of the adapter body, and the positioning ring is disposed coaxially with the adapter body.

The technical scheme provided by the invention has the beneficial effects that:

the embodiment of the invention provides an optical fiber connector and a connector and adapter assembly of an outdoor preformed end, wherein a locking buckle is arranged on a connector body, and a positioning locking assembly is arranged outside the connector body, a positioning ring of the positioning locking assembly can be locked with the locking buckle through a limiting hole on one hand, and can be inserted into an adapter for positioning on the other hand, when the positioning locking assembly is not matched with the adapter, an outer sleeve can be rotated along the circumferential direction to drive the locking buckle to be separated from the limiting hole, so that the positioning locking assembly is detached from the connector body and then replaced by the positioning locking assembly matched with the adapter, and the optical fiber connector and the adapter can be intercommunicated for use.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic perspective view of an outdoor pre-terminating optical fiber connector according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a main body assembly according to an embodiment of the present invention;

FIG. 3 is a schematic perspective view of a positioning and locking assembly according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a body assembly provided by an embodiment of the present invention;

FIG. 5 is an enlarged view of A in FIG. 4;

FIG. 6 is an exploded view of the positioning and locking assembly provided by the embodiment of the present invention;

FIG. 7 is a schematic perspective view of a retaining ring according to an embodiment of the present invention;

FIG. 8 is a schematic perspective view of another angle of a retaining ring according to an embodiment of the present invention;

FIG. 9 is a schematic perspective view of a jacket according to an embodiment of the present invention;

fig. 10 is a schematic cross-sectional view of the position limiting buckle provided in the embodiment of the present invention when the position limiting buckle does not pass over the second rib;

fig. 11 is a schematic cross-sectional view of the limiting buckle provided in the embodiment of the present invention in another direction when the limiting buckle does not pass over the second rib;

fig. 12 is a schematic cross-sectional view of the limiting buckle passing over the second rib according to the embodiment of the present invention;

fig. 13 is a schematic cross-sectional view of the limiting buckle of the embodiment of the present invention in another direction after passing over the second rib;

FIG. 14 is a cross-sectional view of an outdoor pre-terminated fiber optic connector according to an embodiment of the present invention;

FIG. 15 is an enlarged view of B in FIG. 14;

FIG. 16 is a schematic perspective view of an adapter according to an embodiment of the present invention;

FIG. 17 is an exploded view of an adapter according to an embodiment of the present invention;

FIG. 18 is a schematic cross-sectional view of an adapter provided in accordance with an embodiment of the present invention;

FIG. 19 is a cross-sectional schematic view of an adapter body provided by an embodiment of the present invention;

FIG. 20 is a schematic cross-sectional view of an initial insertion adapter for a fiber optic connector according to an embodiment of the present invention;

FIG. 21 is a cross-sectional view of the retainer clip not passing over the second bead during assembly of the connector and adapter assembly according to an embodiment of the present invention;

fig. 22 is a cross-sectional view of the retainer clip passing over the second rib during assembly of the connector and adapter assembly according to an embodiment of the present invention.

In the figure:

1. a body assembly; 101. a connector body; 101a, locking a buckle; 101b, unlocking a buckle;

102. inserting a core; 103. unlocking the ring; 103a, unlocking the boss; 103b, a chute;

104. an elastic member; 105. a third seal ring; 106. a tail sleeve; 107. an optical cable;

2. positioning the locking assembly; 201. a positioning ring; 201a, a positioning key; 201b, a first accommodation hole; 201c, an annular groove; 201d, limiting buckles; 201e, a limiting hole; 201f, a first sealing groove;

202. a first seal ring; 203. steel balls; 204. a jacket; 204a, a first convex rib; 204b, second convex ribs; 204c, angle pin structure;

3. an adapter; 301. an adapter body; 301a, a positioning groove; 301b, a second accommodation hole; 301c, avoiding empty structure; 301d, a chute; 301e, a housing groove; 301f, casing groove; 301g, buckling holes; 301h, a stop ring;

302. a second seal ring; 303. a ceramic bushing; 304. an SC card seat; 304a and a clamping seat buckle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The embodiment of the invention provides an outdoor pre-finished optical fiber connector and a connector and adapter assembly, which can solve the problems that in the related technology, the adapters of different manufacturers have different structural complexity, sizes and operation modes, and the pre-finished optical fiber connector cannot be communicated with the pre-finished adapters of different manufacturers when being connected to the adapters.

Referring to fig. 1 to 3, an outdoor preterminated optical fiber connector provided by an embodiment of the present invention may include: a main body assembly 1, wherein the main body assembly 1 includes a connector body 101 and an optical cable 107 mounted at one end of the connector body 101, the connector body 101 has a locking buckle 101a, in this embodiment, the locking buckle 101a is preferably a cantilever-shaped buckle with elasticity extending from the connector body 101, and two locking buckles 101a are respectively arranged at two opposite sides of the connector body 101, in other embodiments, the locking buckles 101a may also be mounted on the connector body 101 and can move relative to the connector body 101 along a direction perpendicular to an axial direction of the connector body 101; the positioning and locking assembly 2 is sleeved outside the main body assembly 1, the positioning and locking assembly 2 may include an outer sleeve 204 and a positioning ring 201 for being inserted into the adapter 3, in this embodiment, when the optical fiber connector is butted to the adapter 3, the positioning ring 201 may play a role of positioning, the positioning ring 201 may be installed in the outer sleeve 204, and the positioning ring 201 has a limiting hole 201e matched with the locking buckle 101a; when the locking buckle 101a is positioned in the limiting hole 201e, the locking buckle 101a and the limiting hole 201e are mutually clamped, so that the main body assembly 1 and the positioning and locking assembly 2 are locked; when the outer sleeve 204 is rotated along the circumferential direction of the connector body 101, the outer sleeve 204 drives the locking buckle 101a to be separated from the limiting hole 201e, the main body component 1 and the positioning locking component 2 are unlocked, that is, the outer sleeve 204 is sleeved on the outermost side of the connector body 101, when the outer sleeve 204 is rotated in the circumferential direction, the outer sleeve 204 can directly or indirectly act on the limiting buckle 201d or the limiting hole 201e, so that the locking buckle 101a and the limiting hole 201e are separated from each other, the locking buckle 101a cannot limit the limiting hole 201e, the positioning ring 201 can be taken down from the connector body 101, the outer sleeve 204 can be taken down from the connector body 101, and can be conveniently replaced into other types of positioning locking components 2 to be matched with the adapter 3, the positioning locking components 2 can be assembled and replaced on site, the proper adapter 3 can be conveniently assembled and replaced, and meanwhile, abrasion of the outer sleeve 204 caused by axially moving the outer sleeve 204 when unlocking is avoided.

Referring to fig. 2, 9 to 10, in some embodiments, an angle pin structure 204c may be fixed in the outer sleeve 204, and in this embodiment, the angle pin structure 204c has an inclined surface; the connector body 101 may be sleeved with an unlocking ring 103, the unlocking ring 103 has a sliding groove 103b matched with the taper pin structure 204c, in this embodiment, the sliding groove 103b is arranged on the outer surface of the unlocking ring 103, so as to be matched with the taper pin structure 204c, and the taper pin structure 204c may be inserted into the sliding groove 103 b; the inclined surface of the inclined pin structure 204c contacts with the inner wall of the sliding groove 103b, the outer sleeve 204 is rotated along the circumferential direction of the connector body 101, the inclined pin structure 204c rotates together with the outer sleeve 204, the inclined pin structure 204c rotates along the circumferential direction, and the sliding groove 103b moves along the inclined surface of the inclined pin structure 204c in the axial direction at the same time of rotating along the circumferential direction.

Referring to fig. 4 to 5, further, an unlocking buckle 101b may be disposed on the locking buckle 101a, in this embodiment, the unlocking buckle 101b is disposed outside the locking buckle 101a, and an outer surface of the unlocking buckle 101b may extend obliquely, an unlocking boss 103a may be disposed in the unlocking ring 103, when the unlocking ring 103 moves along an axial direction of the connector body 101, in this embodiment, the unlocking boss 103a moves backward together with the unlocking ring 103, the unlocking boss 103a abuts against the unlocking buckle 101b, and under the gradual pressing of the unlocking boss 103a, the unlocking boss 103a drives the unlocking buckle 101b and the locking buckle 101a to move in a direction approaching to an axis of the connector body 101, that is, to bend inward, so as to disengage the locking buckle 101a from the limiting hole 201e, thereby completing the unlocking of the positioning ring 201 from the connector body 101, by disposing the unlocking buckle 101b and the unlocking boss 103a, the axial movement of the unlocking ring 103 is converted into the inward bending movement of the locking buckle 101a, so that the locking buckle 101a moves out of the limiting hole 201e, and the positioning ring 101a can move out of the locking buckle 101a, and the locking buckle 101a is not damaged by force, and the locking buckle 201a is not needed in the locking buckle 101a, and the locking structure, and the locking buckle 201e, and the locking buckle 101a is not needed to be damaged, and the locking buckle 201 is not needed.

Referring to fig. 2 to 4, further, an elastic member 104 may be sleeved outside the connector body 101, one end of the elastic member 104 abuts against the unlocking ring 103, and the other end abuts against the limiting surface of the connector body 101, in this embodiment, the elastic member 104 is preferably a spring, in other embodiments, the elastic member 104 may also be another elastic member, and the elastic member 104 is disposed behind the unlocking ring 103, so that when the unlocking ring 103 moves axially backward, the unlocking ring 103 may gradually compress the elastic member 104, when the locking buckle 101a is disengaged from the limiting hole 201e, the elastic member 104 is in a compressed state, and when the force acting on the unlocking ring 103 is released, the unlocking ring 103 may be driven to automatically reset under the elastic force of the elastic member 104.

Referring to fig. 7 and 10, in some embodiments, an annular groove 201c may be disposed outside the positioning ring 201, in this embodiment, the positioning ring 201 may be divided into a front section, a middle section, and a rear section in sequence from front to rear, the annular groove 201c may be disposed in the middle section, and is preferably located near the rear section, a first rib 204a may be disposed in the outer casing 204, the first rib 204a is clamped in the annular groove 201c, so that the outer casing 204 may rotate circumferentially relative to the positioning ring 201, and the outer casing 204 is not easily separated from the positioning ring 201, in this embodiment, a width of the first rib 204a in the axial direction may be smaller than a width of the annular groove 201c in the axial direction, so that the positioning ring 201 and the outer casing 204 may perform a certain relative movement in the axial direction.

Further, spacing hole 201e is preferred to be set up in the back end of holding ring 201, is convenient for fix with connector body 101 at the rear side of holding ring 201, and the back end is equipped with two spacing holes 201e, and two spacing holes 201e symmetrical arrangement, and preferably are squarely, and the anterior segment of holding ring 201 can be used for matcing the butt joint with adapter 3.

Referring to fig. 6 to 7 and 10, in some alternative embodiments, the positioning ring 201 may have at least one first receiving hole 201b penetrating through a wall thickness thereof, in this embodiment, there are 3 first receiving holes 201b, a steel ball 203 for locking the adapter 3 is received in the first receiving hole 201b, and a position-limiting buckle 201d is further disposed on one side of the positioning ring 201 close to the outer sleeve 204, in this embodiment, two position-limiting buckles 201d are preferably symmetrically disposed on the positioning ring 201, and the position-limiting buckles 201d may be correspondingly disposed at a position of the annular groove 201c, and the position-limiting buckle 201d may also be in a cantilever state, so as to improve elasticity of the position-limiting buckle 201 d; in this embodiment, the second protruding rib 204b is located behind the first protruding rib 204a and spaced from the first protruding rib 204a, when the limiting buckle 201d moves in a direction close to the outer sleeve 204 (i.e., backward) to pass over the second protruding rib 204b, the second protruding rib 204b stops the limiting buckle 201d to prevent the positioning ring 201 from moving forward, and meanwhile, the inner wall of the outer sleeve 204 abuts against the outer side of the steel ball 203 to limit the steel ball 203, so that the steel ball 203 cannot bounce to the outer side of the first accommodating hole 201b, and thus the optical fiber connector and the adapter 3 can be locked together, and compared with the locking of the adapter 3 by adopting a screwing manner, the structure is simpler and the operation is more convenient.

Referring to fig. 9-13, in some embodiments, the outer sheath 204 may have a first lumen and a second lumen in communication with the first lumen, the second lumen may have an inner diameter less than the inner diameter of the first lumen; the first convex rib 204a and the second convex rib 204b can be arranged in the second inner cavity, when the limiting buckle 201d passes through the second convex rib 204b, the steel ball 203 is correspondingly positioned in the first inner cavity, and a gap is formed between the steel ball 203 and the inner wall of the first inner cavity; after the limiting buckle 201d passes through the second convex rib 204b, the steel ball 203 is correspondingly located in the second inner cavity, and the steel ball 203 abuts against the inner wall of the second inner cavity, because the first inner cavity is large, when the steel ball 203 is correspondingly located in the first inner cavity, the inner wall of the first inner cavity cannot limit the steel ball 203, the steel ball 203 and the adapter 3 are not locked, the optical fiber connector can be continuously inserted into the adapter 3, after the optical fiber connector is inserted into a proper position, the steel ball 203 is correspondingly located in the second inner cavity, the second inner cavity is small, the inner wall of the second inner cavity can contact with the outer side of the steel ball 203 and limit the steel ball 203, the steel ball 203 is prevented from moving outwards, locking of the optical fiber connector and the adapter 3 is achieved, the locking state of the steel ball 203 is adjustable through the arrangement of the first inner cavity and the second inner cavity which are different in inner diameter, and the locking state of the steel ball 203 is convenient for achieving locking after the optical fiber connector and the adapter 3 are accurately abutted.

Referring to fig. 6 to 7, in some alternative embodiments, a first seal groove 201f may be disposed on an outer side of the positioning ring 201, in this embodiment, the first seal groove 201f is disposed at a front section of the positioning ring 201 and located in front of the first receiving hole 201b, a first seal ring 202 is installed in the first seal groove 201f, and the first seal ring 202 is clamped between the positioning ring 201 and the outer sleeve 204, in this embodiment, the first seal ring 202 is correspondingly located in the first inner cavity of the outer sleeve 204, so as to seal between a front end of the outer sleeve 204 and a front end of the positioning ring 201, thereby achieving waterproof and dustproof effects.

Referring to fig. 16 to 18, an embodiment of the present invention also provides a connector and adapter 3 assembly, which may include: an adapter 3; and a fiber optic connector mated with the adapter 3, the fiber optic connector comprising: the main body component 1, the main body component 1 includes the body 101 of the interface unit and mounts to the optical cable 107 of one end of the body 101 of the interface unit, the body 101 of the interface unit has locking buckles 101a; the positioning and locking assembly 2 is sleeved outside the main body assembly 1, the positioning and locking assembly 2 comprises an outer sleeve 204 and a positioning ring 201 inserted in the adapter 3, the positioning ring 201 is arranged in the outer sleeve 204, and the positioning ring 201 is provided with a limiting hole 201e matched with the locking buckle 101a; when the locking buckle 101a is positioned in the limiting hole 201e, the main body component 1 is locked with the positioning and locking component 2; when the outer sleeve 204 is rotated along the circumferential direction of the connector body 101, the outer sleeve 204 drives the locking buckle 101a to disengage from the limiting hole 201e, and the main body assembly 1 and the positioning locking assembly 2 are unlocked, wherein any embodiment of the optical fiber connector can be applied to the embodiment, which is not described herein.

Referring to fig. 19, further, the positioning ring 201 may have a first receiving hole 201b, the first receiving hole 201b receives the steel ball 203 therein, the adaptor 3 may have a second receiving hole 301b, when the steel ball 203 is partially received in the second receiving hole 301b and partially received in the first receiving hole 201b, the adaptor 3 is locked with the optical fiber connector, and the positioning ring 201 and the adaptor 3 are connected by the steel ball 203 by providing a receiving hole with a simple structure on the adaptor 3, so as to achieve locking and positioning quickly.

Referring to fig. 17, 20 to 22, in some embodiments, the adapter 3 may include an adapter body 301, and a stop ring 301h may be disposed outside the adapter body 301, where the stop ring 301h is located at a side of the second accommodating hole 301b away from the optical fiber connector, that is, at a front side; when the adapter 3 is locked with the optical fiber connector, the positioning ring 201 contacts the stop ring 301h, so that the stop ring 301h stops in front of the positioning ring 201, and the positioning ring 201 is prevented from moving forward, and the steel ball 203 is prevented from being released from the second accommodating hole 301b due to the movement of the positioning ring 201. In this embodiment, when the front end of the positioning ring 201 contacts the stop ring 301h, the outer sleeve 204 can be pushed forward, and the positioning ring 201 is stopped, so that the position-limiting buckle 201d of the positioning ring 201 can get over the second convex rib 204b of the outer sleeve 204, thereby finally locking the steel ball 203.

Referring to fig. 17, further, a second sealing groove may be further disposed outside the adaptor body 301, the second sealing groove is located between the stop ring 301h and the second receiving hole 301b, a second sealing ring 302 is disposed in the second sealing groove, the second sealing ring 302 is clamped between the adaptor body 301 and the positioning ring 201, and the second sealing ring 302 is disposed at the front side of the second receiving hole 301b, so as to ensure sealing between the positioning ring 201 and the adaptor body 301 and prevent water or dust from entering the positioning ring 201 from the front end of the positioning ring 201.

As shown in fig. 8, 18 to 19, further, the adaptor body 301 may further be provided with a positioning groove 301a, and an opening of the positioning groove 301a may be in a flared shape; can be equipped with in the holding ring 201 with holding tank 301a complex navigation key 201a, holding ring 201 realizes the location through navigation key 201a and holding tank 301a with adapter 3, at the in-process of holding ring 201 installation to adapter main part 301, navigation key 201a can progressively insert in holding tank 301a, be convenient for fiber connector and adapter 3 location when the butt joint, and simultaneously, because holding tank 301 a's opening is the loudspeaker form, it leads when inserting to have made things convenient for holding ring 201.

Referring to fig. 18 to 19, in some alternative embodiments, a receiving groove 301e for receiving the connector body 101 may be formed in the adapter main body 301, in this embodiment, the receiving groove 301e is located on an axis of the adapter main body 301, a chute 301d may be further formed in a side (i.e., a rear side) of the adapter main body 301 close to the optical fiber connector, the chute 301d is communicated with the receiving groove 301e, and a cross-sectional size of the chute 301d gradually increases from inside to outside, that is, when the connector body 101 is inserted into the receiving groove 301e, the connector body first enters the chute 301d, and then falls into the receiving groove 301e after passing through the chute 301d, and by providing the chute 301d with an inner wall surface inclined outwards, the connector body 101 may be guided, so that the connector body 101 may finally be accurately moved into the receiving groove 301 e.

As shown in fig. 18 to 19, further, a clearance structure 301c may be further disposed at an end of the adapter main body 301 close to the optical fiber connector, the clearance structure 301c is communicated with the chute 301d, and a cross-sectional dimension of the clearance structure 301c is greater than or equal to a maximum cross-sectional dimension of the chute 301d, in this embodiment, the size of the clearance structure 301c is the same as that of a rearmost end of the chute 301d, in other embodiments, the clearance structure 301c may be larger than that of a rear end of the chute 301d, and the connector body 101 may sequentially enter the chute 301d structure and the receiving groove 301e from the clearance structure 301c, that is, the clearance structure 301c is located at a rearmost side of the adapter main body 301, so that when the connector body 101 is inserted into the adapter 3, the front end of the connector body 101 has a larger clearance space, in this embodiment, the front end of the connector body 101 is mounted with the ferrule 102, and the clearance structure 301c may prevent the ferrule 102 from touching the other structures of the adapter 3 before misalignment.

Referring to fig. 20 to 22, further, when the connector body 101 enters the clearance structure 301c, the inner wall of the positioning ring 201 contacts the outer surface of the adapter body 301, and the positioning ring 201 is coaxially disposed with the adapter body 301, that is, the inner diameter of the positioning ring 201 may be substantially the same as the outer diameter of the rear portion of the adapter body 301, so that when the connector body 101 is initially inserted into the adapter 3, the positioning ring 201 can be just sleeved outside the adapter body 301 to coaxially position the connector body 101, thereby preventing the optical fiber connector from being contaminated due to the fact that the ferrule 102 touches other structures of the adapter 3 due to the misoperation of aligning the insertion of the optical fiber connector; and the optical fiber connector can be aligned by visual means simply when inserted, and the optical fiber connector has good error-proof operation measures and is convenient to operate.

Referring to fig. 17 to 18, further, a sleeve groove 301f may be further disposed in the adaptor body 301, the ceramic sleeve 303 may be received in the sleeve groove 301f, the adaptor 3 may further include an SC card holder 304, the SC card holder 304 is provided with a card holder buckle 304a, so that the SC card holder 304 may be buckled into the buckling hole 301g of the adaptor body 301 through the card holder buckle 304a to realize assembly, meanwhile, the SC card holder 304 locks the ceramic sleeve 303 into the sleeve groove 301f, and the SC card holder 304 is installed on the adaptor body 301 by adopting a buckle assembly method, thereby simplifying a molding process of the adaptor body 301, simplifying assembly of the ceramic sleeve 303 on the adaptor 3, and realizing tool-free installation of the ceramic sleeve 303.

As shown in fig. 2, further, the connector body 101 may further be provided with a third sealing groove, the third sealing groove is preferably disposed on the rear side of the elastic member 104, and a third sealing ring 105 is accommodated in the third sealing groove, the third sealing ring 105 is located between the outer sleeve 204 and the connector body 101, and is used for sealing a gap between the rear side of the outer sleeve 204 and the connector body 101; the connector body 101 can be further coated with a tail sleeve 106 to realize bending protection of the optical cable 107, wherein when the optical cable 107 is mounted on the connector body 101, a fixed sealing assembly is further arranged between the optical cable 107 and the connector body 101.

The assembling method of the connector and adapter 3 assembly provided by the embodiment of the invention comprises the following steps: during installation, firstly, the outer sleeve 204 is sleeved outside the connector body 101, then the positioning ring 201 is inserted into the outer sleeve 204 from front to back along the axial direction, so that the limiting hole 201e on the positioning ring 201 is matched and locked with the locking buckle 101a of the connector body 101, an optical fiber connector is assembled, then the optical fiber connector is oppositely inserted towards the adapter 3, the positioning ring 201 is inserted outside the adapter main body 301, when the positioning ring 201 abuts against the stop ring 301h, the steel ball 203 enters the second accommodating hole 301b of the adapter 3 body, the outer sleeve 204 is further pushed forwards, so that the limiting buckle 201d on the positioning ring 201 passes through the second convex rib 204b backwards, and meanwhile, the inner wall of the outer sleeve 204 abuts against the outer side of the steel ball 203, so that the optical fiber connector is locked with the adapter 3; during disassembly, the outer sleeve 204 is moved backwards firstly, so that the outer sleeve 204 releases the limit of the steel ball 203, then the optical fiber connector can be pulled out from the adapter 3, then the outer sleeve 204 is rotated circumferentially, the outer sleeve 204 drives the unlocking ring 103 to move backwards, the unlocking ring 103 drives the locking buckle 101a to bend inwards, so that the locking buckle 101a is separated from the limit hole 201e, the positioning ring 201 is unlocked with the connector body 101, so that the positioning ring 201 can be taken down from the connector body 101, and finally the outer sleeve 204 is taken down from the connector body 101.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An outdoor pre-terminated fiber optic connector, comprising:

the connector comprises a main body component (1), wherein the main body component (1) comprises a connector body (101) and an optical cable (107) mounted at one end of the connector body (101), and the connector body (101) is provided with a locking buckle (101 a);

the positioning and locking assembly (2) is sleeved outside the main body assembly (1), the positioning and locking assembly (2) comprises an outer sleeve (204) and a positioning ring (201) which is used for being inserted into the adapter (3), the positioning ring (201) is installed in the outer sleeve (204), and the positioning ring (201) is provided with a limiting hole (201 e) matched with the locking buckle (101 a);

when the locking buckle (101 a) is positioned in the limiting hole (201 e), the main body component (1) is locked with the positioning locking component (2);

when the outer sleeve (204) is rotated along the circumferential direction of the connector body (101), the outer sleeve (204) drives the locking buckle (101 a) to be separated from the limiting hole (201 e), and the main body component (1) is unlocked from the positioning and locking component (2);

the positioning ring (201) is provided with at least one first accommodating hole (201 b) penetrating through the wall thickness of the positioning ring, a steel ball (203) used for locking the adapter (3) is accommodated in the first accommodating hole (201 b), and a limiting buckle (201 d) is further arranged on one side, close to the outer sleeve (204), of the positioning ring (201);

and a second convex rib (204 b) matched with the limiting buckle (201 d) is further arranged in the outer sleeve (204) in a protruding mode, and when the limiting buckle (201 d) moves towards the direction close to the outer sleeve (204) to cross the second convex rib (204 b), the inner wall of the outer sleeve (204) is abutted to the outer side of the steel ball (203).

2. The outdoor pre-terminated fiber optic connector of claim 1, wherein: an angle pin structure (204 c) is fixedly arranged in the outer sleeve (204);

an unlocking ring (103) is sleeved outside the connector body (101), and the unlocking ring (103) is provided with a sliding groove (103 b) matched with the angle pin structure (204 c);

the outer sleeve (204) is rotated along the circumferential direction of the connector body (101), the angle pin structure (204 c) drives the unlocking ring (103) to move along the axial direction of the connector body (101) through the sliding groove (103 b), and meanwhile, the unlocking ring (103) drives the locking buckle (101 a) to be disengaged from the limiting hole (201 e).

3. The outdoor preterminated fiber optic connector of claim 2, wherein:

an unlocking buckle (101 b) is arranged on the locking buckle (101 a), an unlocking boss (103 a) is arranged in the unlocking ring (103),

when the unlocking ring (103) moves along the axial direction of the connector body (101), the unlocking boss (103 a) abuts against the unlocking buckle (101 b), the unlocking buckle (101 b) and the locking buckle (101 a) are driven by the unlocking boss (103 a) to move together towards the direction close to the axis of the connector body (101), and the locking buckle (101 a) is separated from the limiting hole (201 e).

4. The outdoor pre-terminated fiber optic connector of claim 2, wherein:

the connector body (101) is further sleeved with an elastic piece (104), one end of the elastic piece (104) abuts against the unlocking ring (103), the other end of the elastic piece (104) abuts against the limiting surface of the connector body (101), and when the locking buckle (101 a) is separated from the limiting hole (201 e), the elastic piece (104) is in a compressed state.

5. The outdoor pre-terminated fiber optic connector of claim 1, wherein:

set ring (201) is equipped with annular groove (201 c) outward, be equipped with first protruding muscle (204 a) in overcoat (204), first protruding muscle (204 a) card is located in annular groove (201 c), make overcoat (204) can for set ring (201) circumferential direction.

6. The outdoor pre-terminated fiber optic connector of claim 1, wherein:

the outer sleeve (204) is provided with a first inner cavity and a second inner cavity communicated with the first inner cavity, and the inner diameter of the second inner cavity is smaller than that of the first inner cavity;

the second convex rib (204 b) is arranged in the second inner cavity, when the limiting buckle (201 d) passes over the second convex rib (204 b), the steel ball (203) is correspondingly positioned in the first inner cavity, and a gap is formed between the steel ball (203) and the inner wall of the first inner cavity;

when the limiting buckle (201 d) passes over the second convex rib (204 b), the steel ball (203) is correspondingly positioned in the second inner cavity, and the steel ball (203) is abutted against the inner wall of the second inner cavity.

7. The outdoor pre-terminated fiber optic connector of claim 1, wherein:

the outside of holding ring (201) is equipped with first seal groove (201 f), install first sealing washer (202) in first seal groove (201 f), first sealing washer (202) press from both sides and locate holding ring (201) with between overcoat (204).

8. A connector and adapter (3) assembly, characterized in that it comprises: an adapter (3); and a fiber optic connector mated with the adapter (3), the fiber optic connector comprising:

the positioning and locking assembly (2) is sleeved outside the main body assembly (1), the positioning and locking assembly (2) comprises an outer sleeve (204) and a positioning ring (201) inserted in the adapter (3), the positioning ring (201) is installed in the outer sleeve (204), and the positioning ring (201) is provided with a limiting hole (201 e) matched with the locking buckle (101 a);

and a second convex rib (204 b) matched with the limiting buckle (201 d) is further convexly arranged in the outer sleeve (204), and when the limiting buckle (201 d) moves towards the direction close to the outer sleeve (204) to cross the second convex rib (204 b), the inner wall of the outer sleeve (204) is abutted against the outer side of the steel ball (203).

9. The connector-and-adapter (3) assembly according to claim 8, wherein the positioning ring (201) is provided with a first receiving hole (201 b), the first receiving hole (201 b) receiving therein a steel ball (203),

the adapter (3) is provided with a second accommodating hole (301 b), and when the steel balls (203) are partially accommodated in the second accommodating hole (301 b) and partially accommodated in the first accommodating hole (201 b), the adapter (3) is locked with the optical fiber connector.

10. A connector and adapter (3) assembly according to claim 9, wherein:

the adapter (3) comprises an adapter main body (301), a stop ring (301 h) is arranged outside the adapter main body (301), and the stop ring (301 h) is positioned on one side, away from the optical fiber connector, of the second accommodating hole (301 b);

when the adapter (3) is locked with the optical fiber connector, the positioning ring (201) contacts the stopping ring (301 h).

11. A connector and adapter (3) assembly according to claim 10, wherein:

still be equipped with the second seal groove outside adapter main part (301), the second seal groove is located keep off circle (301 h) with between second accommodation hole (301 b), just be equipped with second sealing washer (302) in the second seal groove, second sealing washer (302) press from both sides and locate adapter main part (301) with between holding ring (201).

12. A connector and adapter (3) assembly according to claim 8, wherein:

the adapter (3) comprises an adapter main body (301), the adapter main body (301) is provided with a positioning groove (301 a), and an opening of the positioning groove (301 a) is in a horn shape expanding outwards;

be equipped with in holding ring (201) with constant head tank (301 a) complex navigation key (201 a), holding ring (201) with adapter (3) are through navigation key (201 a) with constant head tank (301 a) realize the location.

13. Connector and adapter (3) assembly according to claim 8, characterized in that:

adapter (3) includes adapter main part (301), be equipped with in adapter main part (301) and be used for accomodating accommodating groove (301 e) of connector body (101), be close to in adapter main part (301) one side of fiber connector still is equipped with chute (301 d), chute (301 d) with accommodating groove (301 e) intercommunication, just the cross sectional dimension of chute (301 d) is from inside to outside crescent.

14. A connector and adapter (3) assembly according to claim 13, wherein:

adapter main part (301) are close to fiber connector's one end still is equipped with clearance structure (301 c), clearance structure (301 c) with chute (301 d) intercommunication, and the cross sectional dimension of clearance structure (301 c) is greater than or equal to the biggest cross sectional dimension of chute (301 d), connector body (101) certainly clearance structure (301 c) get into in proper order chute (301 d) structure with holding tank (301 e).

15. A connector and adapter (3) assembly according to claim 14, wherein:

when the connector body (101) enters the space avoiding structure (301 c), the inner wall of the positioning ring (201) is in contact with the outer surface of the adapter main body (301), and the positioning ring (201) and the adapter main body (301) are coaxially arranged.