CN112859253B

CN112859253B - Optical fiber connector, optical fiber connecting system and box body

Info

Publication number: CN112859253B
Application number: CN202110099503.9A
Authority: CN
Inventors: 李秀鹏; 彭尚军; 李媛媛
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2022-05-31
Anticipated expiration: 2041-01-25
Also published as: CN112859253A

Abstract

The embodiment of the application discloses fiber connector, fiber connection system and box body belongs to the technical field of optical communication. The optical fiber connector comprises a plug main body, a movable sleeve and a driving sleeve, wherein the movable sleeve is sleeved outside the plug main body, the driving sleeve is sleeved outside the movable sleeve, the driving sleeve and the movable sleeve are matched with each other, and the driving sleeve drives the movable sleeve to rotate circumferentially when moving axially relative to the movable sleeve, so that the movable sleeve does not need to be screwed by hands of an operator in the process of connecting and disconnecting the optical fiber connector and an optical fiber adapter, a large operation space is not needed, and the operation is simple and convenient.

Description

Optical fiber connector, optical fiber connection system and box body

Technical Field

The application relates to the technical field of optical communication, in particular to an optical fiber connector, an optical fiber connecting system and a box body.

Background

In the Fiber To The Home (FTTH) operation process, the optical cable sequentially passes through a Central Office (CO) and a pre-Connected Fiber Distribution Point (CFDP), and finally reaches a Customer Splicing Point (CSP).

When the optical cable from the CFDP to the CSP is laid, the optical fiber connector at one end of the optical cable is inserted and fixed into the optical fiber adapter of the CFDP, and the optical fiber connector at the other end of the optical cable is inserted and fixed into the CSP, so that the optical cable laying between the CFDP and the CSP is completed.

The connection between the optical fiber connector and the optical fiber adapter is usually realized by a movable sleeve on the optical fiber connector and the optical fiber adapter, and when the connection is performed, the front end of the optical fiber connector is inserted into a jack of the optical fiber adapter, and then the movable sleeve is screwed to enable the movable sleeve and the optical fiber adapter to be connected together in a threaded manner. Correspondingly, when the connection between the optical fiber connector and the optical fiber adapter is disconnected, the movable sleeve is reversely screwed to separate the movable sleeve from the locking piece, and then the optical fiber connector is pulled out of the jack. Therefore, the connection and the disassembly between the optical fiber connector and the optical fiber adapter are complicated, a large operation space is needed in the process of screwing the movable sleeve, and the operation is more difficult under the condition that the arrangement of the optical fiber adapter is more intensive.

Disclosure of Invention

The embodiment of the application provides an optical fiber connector, an optical fiber connecting system and a box body, which can overcome the problems in the related art, and the technical scheme is as follows:

in a first aspect, embodiments of the present application provide an optical fiber connector that includes a plug body, a movable sleeve, and a driving sleeve. The movable sleeve is sleeved outside the plug main body. The movable sleeve is axially locked relative to the plug main body and can circumferentially rotate relative to the plug main body. The outer sidewall of the movable sleeve has a locking structure for mating with a fiber optic adapter. After the locking structure and the optical fiber adapter form the fit, the optical fiber connector and the optical fiber adapter are axially locked, and after the locking structure is released from the fit of the optical fiber adapter, the optical fiber connector can be pulled out from the optical fiber adapter. The driving sleeve is sleeved outside the movable sleeve and can axially move relative to the movable sleeve so as to drive the movable sleeve to circumferentially rotate.

Based on above-mentioned fiber connector, after fiber connector inserted the optic fibre adapter, promote the drive sleeve pipe along the axial, the drive sleeve pipe drives movable sleeve pipe circumferential direction for locking structure forms the cooperation with the optic fibre adapter, with movable sleeve pipe and optic fibre adapter axial locking. When the connection between the optical fiber connector and the optical fiber adapter needs to be disconnected, the driving sleeve can be moved axially to drive the movable sleeve to rotate circumferentially, so that the locking structure is disengaged from the optical fiber adapter, the driving sleeve is continuously pulled outwards from the optical fiber adapter, the optical connection between the optical fiber connector and the optical fiber adapter is disconnected, and finally the optical fiber connector is completely pulled out of the optical fiber adapter. In the process of connecting and disconnecting the optical fiber connector and the optical fiber adapter, an operator does not need to screw the movable sleeve by hands, a larger operation space is not needed, and the operation is simple and convenient.

Optionally, the outer sidewall of the active sleeve has at least one of a first drive groove and a first drive protrusion. The drive sleeve has at least one of a second drive slot and a second drive projection. If the outer side wall of the movable sleeve is provided with the first driving groove, the driving sleeve is provided with a second driving protrusion; if the outer side wall of the movable sleeve is provided with the first driving protrusion, the driving sleeve is provided with a second driving groove. The driving groove and the driving protrusion are matched to convert the linear motion of the driving sleeve into the circumferential rotation of the movable sleeve.

In some examples, the outer side wall of the movable sleeve has the first driving groove, the first driving groove is located between the locking structure and the rear end surface of the movable sleeve, the first driving groove extends in the axial direction of the movable sleeve and is gradually curved along the circumferential direction of the movable sleeve; the inner side wall of the driving sleeve is provided with a second driving protrusion which is movably inserted in the first driving groove.

In some examples, an outer sidewall of the activation sleeve has the first drive tab, the first drive tab being located between the locking structure and a rear face of the activation sleeve; the inner side wall of the driving sleeve is provided with a second driving groove, the second driving groove extends in the axial direction of the driving sleeve and is gradually bent along the circumferential direction of the driving sleeve, and the first driving protrusion is movably inserted in the second driving groove.

Based on the structure, in the process of pushing the driving sleeve, the first driving groove and the second driving protrusion move relatively, and the first driving protrusion and the second driving groove move relatively. The driving sleeve cannot rotate under the limitation of external force, for example, the acting force on the driving sleeve when an operator pinches the driving sleeve can only do linear motion, but the driving groove is curved, and in the process of the linear motion of the driving sleeve, the driving protrusion slides in the driving groove relative to the driving groove, so that the movable sleeve rotates.

Optionally, at an end of the first drive slot near the front end face of the movable sleeve, an inner side wall of the first drive slot is parallel or coplanar with an axis of the movable sleeve. The first driving groove and the second driving protrusion generate mutual extrusion in the matching process, the extrusion acting force is perpendicular to the inner side wall of the first driving groove, the end position of the first driving groove is provided with the inner side wall of the first driving groove and the axis of the movable sleeve in parallel or coplanar, so that when the second driving protrusion is arranged at the end position of the first driving groove, the mutual extrusion force between the first driving groove and the second driving protrusion is perpendicular to the axis of the movable sleeve, the component of the extrusion force in the axis direction of the movable sleeve is 0, the extrusion force between the first driving groove and the second driving protrusion can not push the movable sleeve to move axially when the movable sleeve is vibrated, and the movable sleeve is not easy to loosen. Similarly, at the end part of the second driving groove close to the rear end face of the driving sleeve, the inner side wall of the second driving groove is parallel to or coplanar with the axis of the driving sleeve, so that the movable sleeve is not easy to loosen.

Optionally, the optical fiber connector further includes a guide tube, and the guide tube is sleeved outside the plug main body and abuts against the rear end surface of the movable sleeve. The driving sleeve is sleeved outside the movable sleeve and the guide pipe, and the guide pipe is used for limiting the circumferential direction of the driving sleeve. In-process at push-and-pull drive sleeve, operator's hand can provide certain restriction to drive sleeve when nipping drive sleeve, makes drive sleeve can't rotate, and after loosening the hand, drive sleeve probably takes place to rotate under the influence that receives external factors such as vibrations, through setting up the stand pipe, utilizes the stand pipe to carry out circumference spacing to drive sleeve for the unable circumferential direction of drive sleeve.

In some examples, an outer sidewall of the guide tube has the first guide runner extending in an axial direction of the guide tube; the inner side wall of the driving sleeve is provided with a second guide sliding block, and the second guide sliding block is movably inserted into the first guide sliding groove.

In other examples, the outer side wall of the guide tube has the first guide slider, the inner side wall of the drive sleeve has a second guide runner extending in the axial direction of the drive sleeve, and the first guide slider is movably inserted into the second guide runner.

Based on the structure, the guide pipe and between the driving sleeve, through the cooperation of the guide sliding groove and the guide sliding block, the driving sleeve can only slide along the extending direction of the guide sliding groove, and the purpose of circumferential limiting of the driving sleeve is achieved.

Optionally, the first guide sliding groove has a first side wall and a second side wall extending along a length direction thereof, a first limiting protrusion is arranged in a middle of the first side wall, and a distance between the first limiting protrusion and the second side wall is smaller than a width of the second guide sliding block in a circumferential direction of the drive sleeve. Through setting up first spacing arch, make the middle part of first direction spout narrower, the second direction slider can form obvious damping when the middle part through first direction spout and feel, makes things convenient for the operator to confirm drive sleeve's position to first spacing arch can also be with the restriction of second direction slider at the front end or the rear end of first direction spout, avoids fiber connector under the influence that receives factors such as vibrations, and drive sleeve is not hard up. In the optical fiber connector transportation process, the first limiting bulge limits the second guide sliding block at the rear end of the first guide sliding groove, and when the optical fiber connector is put into use, the second guide sliding block directly pushes the drive sleeve, so that the position of the drive sleeve does not need to be adjusted. After fiber connector and fiber adapter are connected, first spacing arch makes the drive sleeve pipe be difficult to not hard up with the restriction of second direction slider at the front end of first direction spout, and movable sleeve pipe just can not rotate under the influence of factors such as vibrations just like this, avoids fiber connector and fiber adapter pine to take off.

Optionally, the wall of the guide tube is further provided with a first strip-shaped groove. A first bar-shaped groove is arranged close to the first guide sliding groove, is close to the first side wall and extends along the axial direction of the guide pipe. The first strip-shaped groove is used for providing a space for lateral deformation for the first side wall when the second guide sliding block passes through the first limiting protrusion. The second guide sliding block slides in the first guide sliding groove, and is extruded with the first limiting protrusion when passing through the first limiting protrusion, and the first side wall of the first guide sliding groove is bent towards the lateral direction in the first strip-shaped groove, so that the second guide sliding block can smoothly pass through the middle part of the first guide sliding groove.

In some examples, an included angle formed by two side surfaces of the first limiting protrusion, which are close to two ends of the first guide chute, and the first side wall is an obtuse angle. Two sides of the first limiting bulge are equivalent to a slope, and when the second guide slide block slides towards the first limiting bulge, the second guide slide block can smoothly pass through the first limiting bulge under the action of the side of the first limiting bulge.

Similarly, the second guide sliding groove is provided with a third side wall and a fourth side wall extending along the length direction of the second guide sliding groove, a second limiting protrusion is arranged in the middle of the third side wall, and the distance between the second limiting protrusion and the fourth side wall is smaller than the width of the first guide sliding block in the circumferential direction of the guide pipe. The pipe wall of the driving sleeve is further provided with a second strip-shaped groove, the second strip-shaped groove is close to the third side wall and extends along the axial direction of the driving sleeve, and the second strip-shaped groove is used for providing a space for lateral deformation for the third side wall when the first guide sliding block passes through the second limiting protrusion. And the included angle formed by two side surfaces of the second limiting bulge, which are close to the two ends of the second guide sliding groove, and the third side wall is an obtuse angle.

Optionally, the inner wall of the guide tube is provided with a limit key, the outer side wall of the plug main body is provided with a key groove, the key groove extends along the axial direction of the plug main body, and the limit key is located in the key groove. Through the cooperation of spacing key and keyway, it is spacing to carry out circumference to the stand pipe.

Optionally, the optical fiber connector further includes a snap ring, the snap ring is sleeved outside the plug main body, and abuts against the end surface of the guide tube far away from the movable sleeve. The snap ring blocks the end surface of the guide pipe and axially limits the guide pipe.

In this application, the locking structure of the outer plug body sidewall includes a cylindrical projection or an outer flange protruding in the radial direction of the movable sleeve, and the outer flange is in a fan-ring shape. When the optical fiber connector is connected with the optical fiber adapter, the columnar convex block or the outer flange slides into the clamping groove on the side wall of the optical fiber adapter to be matched with the optical fiber adapter, so that the optical fiber connector and the optical fiber adapter are axially locked.

In this application, the lateral wall of plug main part still has spacing lug, the preceding terminal surface of activity sleeve pipe with spacing lug offsets. The front end surface of the movable sleeve is blocked by the limiting convex block, so that the movable sleeve is axially limited.

Optionally, the front end surface of the movable sleeve is provided with an angle limiting groove, the limiting projection is located in the angle limiting groove, and the width of the limiting projection in the circumferential direction of the plug main body is smaller than the width of the angle limiting groove in the circumferential direction of the movable sleeve. The angle limiting groove is matched with the limiting protrusion, the angle range of circumferential rotation of the movable sleeve can be limited, so that the movable sleeve is sleeved on the plug main body in the process of assembling the optical fiber connector, the movable sleeve cannot rotate circumferentially relative to the plug main body by a larger angle, and the assembly of the optical fiber connector is facilitated.

In a second aspect, embodiments of the present disclosure also provide an optical fiber connection system. The fibre optic connection system comprises a fibre optic adapter having a receptacle for mating with a fibre optic connector and a fibre optic connector as described in the first aspect.

In this application, the inner wall of jack has draw-in groove and guiding groove. The clamping groove extends along the circumferential direction of the jack and is used for accommodating the locking structure of the optical fiber connector. The guide groove is communicated with one end of the clamping groove, and extends from the clamping groove to the end of the jack.

Based on the structure, in the process that the optical fiber connector is inserted into the jack, the locking structure slides in the guide groove, under the guide of the guide groove, the locking structure slides to the end part of the clamping groove, and when the driving sleeve is pushed subsequently, the locking structure can be matched with the clamping groove under the rotation of the movable sleeve to axially lock the movable sleeve and the optical fiber adapter.

Optionally, the width of the guide groove gradually increases from one end of the guide groove, which is communicated with the card slot, to the other end of the guide groove. At the end of the jack, the guide groove has a larger width, and when the optical fiber connector is inserted into the optical fiber adapter, the locking structure can slide into the guide groove more easily, so that the optical fiber connector can be conveniently inserted into the optical fiber adapter.

In a third aspect, the embodiment of the present disclosure further provides a box body. The cassette comprises a housing, an indoor fibre optic connector and a plurality of fibre optic connection systems as described in the second aspect. The optical fiber adapter of the optical fiber connection system is plugged on the side wall of the shell. The optical fiber connector of the optical fiber connection system is inserted in one end of the optical fiber adapter outside the shell, and the indoor optical fiber connector is inserted in one end of the optical fiber adapter inside the shell. Due to the connection and disconnection processes of the optical fiber connector and the optical fiber adapter, an operator does not need to screw the movable sleeve by hands, the requirement on the operation space is reduced, and the optical fiber adapters can be arranged on the shell more densely.

Drawings

FIG. 1 is a schematic illustration of a fiber-to-the-home service connection;

fig. 2 is a schematic structural diagram of an optical fiber connector provided in an embodiment of the present disclosure;

FIG. 3 is a schematic diagram illustrating an operation process of a fiber optic adapter according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of an active cannula provided by an embodiment of the present disclosure;

FIG. 5 is a schematic structural view of another active cannula provided by embodiments of the present disclosure;

fig. 6 is a schematic structural diagram of an optical fiber connector provided in an embodiment of the present disclosure;

FIG. 7 is an elevation view of an active cannula provided by an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of another optical fiber connector provided in the embodiments of the present disclosure;

FIG. 9 is an elevation view of a drive sleeve provided by an embodiment of the present disclosure;

FIG. 10 is a schematic view of the structure of the guide tube of FIG. 6;

FIG. 11 is a schematic structural diagram of a fiber optic connection system provided by an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of a fiber optic adapter provided by an embodiment of the present disclosure;

fig. 13 is a schematic view of a locking structure cooperating with a card slot provided in an embodiment of the disclosure;

fig. 14 is a schematic structural diagram of a cartridge provided in an embodiment of the disclosure.

Detailed Description

The terminology used in the description of the embodiments section of the present application is for the purpose of explanation only of the examples of the present application and is not intended to be limiting of the present application. Unless otherwise defined, technical or scientific terms used in the embodiments of the present application should have the ordinary meaning as understood by those having ordinary skill in the art to which the present disclosure belongs. The use of "first," "second," "third," and similar terms in the description and claims of the present disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.

Fig. 1 is a schematic diagram of fiber to the home service connection. As shown in fig. 1, in the fiber-to-the-home operation process, the fiber needs to go through a central machine room 1, a pre-connection distribution point 2, and finally a user terminal box 3 in sequence. The connection between the pre-connectorized distribution point 2 and the subscriber termination box 3 is realized by means of a home-entry cable 4.

In the related art, the optical fiber connectors are respectively disposed at two ends of the home-entry optical cable 4, the optical fiber connector at one end of the home-entry optical cable 4 is inserted and fixed in the optical fiber adapter of the pre-connection distribution point 2, and the optical fiber connector at the other end of the home-entry optical cable 4 is inserted and fixed in the subscriber terminal box 3.

Fig. 2 is a schematic structural diagram of an optical fiber connector according to an embodiment of the present disclosure. As shown in fig. 2, the optical fiber connector 1000 includes a plug main body 10, a movable sleeve 20, and a driving sleeve 30. The movable sleeve 20 is sleeved outside the plug main body 10, and the movable sleeve 20 is axially locked relative to the plug main body 10 and can circumferentially rotate relative to the plug main body 10. The outer side wall of the moveable sleeve 20 has a locking structure 21 for mating with the fiber optic adapter 2000. The driving sleeve 30 is sleeved outside the movable sleeve 20 and can axially move relative to the movable sleeve 20 to drive the movable sleeve 20 to circumferentially rotate.

Fig. 3 is a schematic view of an operation process of a fiber optic adapter according to an embodiment of the present disclosure. As shown in fig. 3, after the optical fiber connector 1000 is inserted into the optical fiber adapter 2000, the driving sleeve 30 is pushed in the axial direction, and the driving sleeve 30 drives the movable sleeve 20 to rotate in the circumferential direction, so that the locking structure 21 is engaged with the optical fiber adapter 2000 to axially lock the movable sleeve 20 and the optical fiber adapter 2000, and the optical fiber connector 1000 is connected with the optical fiber adapter 2000.

When the connection between the optical fiber connector 1000 and the optical fiber adapter 2000 needs to be disconnected, the driving sleeve 30 can be axially moved to drive the movable sleeve 20 to circumferentially rotate, so that the locking structure 21 is disengaged from the optical fiber adapter 2000, and the driving sleeve 30 is continuously pulled out of the optical fiber adapter 2000, so that the optical fiber connector 1000 is optically disconnected from the optical fiber adapter 2000, and finally, the optical fiber connector 1000 is completely pulled out of the optical fiber adapter 2000. In the process of connecting and disconnecting the optical fiber connector 1000 and the optical fiber adapter 2000, an operator does not need to screw the movable sleeve 20 by hands, a large operation space is not needed, and the operation is simple and convenient.

As shown in fig. 2, the plug main body 10 has a tubular shape, the plug main body 10 has a front end and a rear end, the front end of the plug main body 10 refers to one end of the plug main body 10 for connecting the ferrule 101, and the rear end of the plug main body 10 refers to one end of the plug main body 10 for threading the optical fiber 5. When the optical fiber connector 1000 is connected to the optical fiber adapter 2000, the distal end of the plug main body 10 is inserted into the optical fiber adapter 2000.

The active sleeve 20 and the drive sleeve 30 are each tubular and have a front end face and a rear end face. Wherein, the front end face 201 of the movable sleeve 20 refers to the end face of the movable sleeve 20 close to the front end of the plug main body 10, and the rear end face 202 of the movable sleeve 20 refers to the end face of the movable sleeve 20 far away from the front end of the plug main body 10. The front end face 301 of the drive sleeve 30 refers to the end face of the drive sleeve 30 near the front end of the plug main body 10, and the rear end face 302 of the drive sleeve 30 refers to the end face of the drive sleeve 30 away from the front end of the plug main body 10.

As shown in fig. 2, the outer side wall of the plug main body 10 has a limit projection 11, and the front end surface 201 of the movable sleeve 20 abuts against the limit projection 11. Under the effect of the limiting bump 11, the movable sleeve 20 can be axially limited, so that the movable sleeve 20 is prevented from axially moving along the plug main body 10 in the process of pushing the driving sleeve 30 when the optical fiber connector 1000 is connected with the optical fiber adapter 2000.

Optionally, the front end surface 201 of the movable sleeve 20 has an angle limiting groove 20b, the limiting projection 11 is located in the angle limiting groove 20b, and the width of the angle limiting groove 20b in the circumferential direction of the movable sleeve 20 is greater than the width of the limiting projection 11 in the circumferential direction of the plug main body 10.

The angle limiting groove 20b is matched with the limiting protrusion 11, so that the angle range of circumferential rotation of the movable sleeve 20 can be limited, and thus, in the process of assembling the optical fiber connector 1000, after the movable sleeve 20 is sleeved on the plug main body 10, the movable sleeve 20 cannot rotate circumferentially by a larger angle relative to the plug main body 10, and the assembly of the optical fiber connector 1000 is facilitated.

Fig. 4 is a schematic structural diagram of an active cannula provided in an embodiment of the present disclosure. As shown in fig. 4, the locking structure 21 includes a stud projection 211 projecting in a radial direction of the movable sleeve 20. Fig. 5 is a schematic structural diagram of another active cannula provided by an embodiment of the present disclosure. As shown in fig. 5, the locking structure 21 includes an outer flange 212 protruding in the radial direction of the movable sleeve 20, and the outer flange 212 has a fan-ring shape.

During the process of connecting the optical fiber connector 1000 and the optical fiber adapter 2000, the movable sleeve 20 is rotated, and the cylindrical protrusion 211 or the outer flange 212 is screwed into the slot 2001 on the side wall of the optical fiber adapter 2000, so that the optical fiber connector 1000 and the optical fiber adapter 2000 are locked. The outer flange 212 can form a larger contact surface with the card slot 2001 than the cylindrical protrusion 211, so that the optical fiber connector 1000 and the optical fiber adapter 2000 can be locked more firmly.

Optionally, the locking structure 21 includes at least two stud bumps 211, and each stud bump 211 is distributed along the circumference of the movable sleeve 20 at equal angular intervals. Alternatively, the locking structure 21 comprises at least two outer flanges 212, and each outer flange 212 is distributed along the circumference of the movable sleeve 20 at equal angular intervals. By providing two or more stud bumps 211 or outer flanges 212, the locking structure 21 can be more securely and stably connected to the fiber optic adapter 2000.

Optionally, the outer side wall of the driving sleeve 30 has an anti-slip protrusion, which can increase the friction between the fingers of the operator and the driving sleeve 30, so as to avoid the slipping condition during the process of pushing and pulling the driving sleeve 30 by the operator, and enable the movable sleeve 20 to smoothly rotate under the action of the driving sleeve 30.

In the embodiment of the present disclosure, the movable sleeve 20 and the driving sleeve 30 are matched by at least one set of concave-convex structure, so that the driving sleeve 30 can drive the movable sleeve 20 to rotate circumferentially. Wherein, the concave-convex structure comprises a driving groove and a driving protrusion. When the movable sleeve 20 and the driving sleeve 30 are fitted with each other by a set of convexo-concave structures, one of the movable sleeve 20 and the driving sleeve 30 has a driving groove, and the other of the movable sleeve 20 and the driving sleeve 30 has a driving protrusion movably inserted in the driving groove. When the movable sleeve 20 and the driving sleeve 30 are engaged with each other by two or more sets of the concavo-convex structure, the movable sleeve 20 has at least one of a driving groove and a driving protrusion, the driving sleeve 30 also has at least one of a driving groove and a driving protrusion, and the driving protrusion of the movable sleeve 20 is movably inserted into the driving groove of the driving sleeve 30 and the driving protrusion of the driving sleeve 30 is movably inserted into the driving groove of the movable sleeve 20. When the driving sleeve 30 moves axially relative to the movable sleeve 20, the driving protrusions and the inner side walls of the driving grooves are pressed against each other, and the force of the pressing against each other has a component in the tangential direction of the movable sleeve 20, which is used as the power for rotating the movable sleeve 20, so that the movable sleeve 20 rotates.

In some examples, active cannula 20 has a drive slot and drive cannula 30 has a drive tab.

Fig. 6 is a schematic structural diagram of an optical fiber connector according to an embodiment of the present disclosure. For ease of viewing, portions of the side wall of the drive sleeve 30 are omitted from FIG. 6. As shown in fig. 6, the outer side wall of the movable sleeve 20 has a first driving groove 20a, and the first driving groove 20a is located between the locking structure 21 and the rear end face 202 of the movable sleeve 20. The first driving groove 20a extends in the axial direction of the movable sleeve 20, and is gradually curved in the circumferential direction of the movable sleeve 20. The inner sidewall of the driving sleeve 30 has a second driving protrusion 31, and the second driving protrusion 31 is movably inserted in the first driving groove 20 a.

When the driving sleeve 30 is pushed toward the front end surface 201 of the movable sleeve 20, the driving sleeve 30 cannot rotate in the grip of the operator, and can only move toward the front end surface 201 of the movable sleeve 20, and since the first driving groove 20a is curved and is gradually curved along the circumferential direction of the movable sleeve 20, the second driving protrusion 31 can press an inner side wall of the first driving groove 20 a. The compression of the second drive protrusion 31 against the inner sidewall of the first drive slot 20a causes the moveable sleeve 20 to rotate, thereby bringing the locking structure 21 into engagement with the fiber optic adapter 2000. When the driving sleeve 30 is pulled in the reverse direction, the second driving protrusion 31 presses the other inner side wall of the first driving groove 20a to rotate the movable sleeve 20 in the reverse direction, thereby disengaging the locking structure 21 from the fiber optic adapter 2000.

Fig. 7 is an elevation view of an active cannula provided by an embodiment of the present disclosure. As shown in fig. 7, at the front end of the first driving groove 20a, the inner side wall 200a of the first driving groove 20a is parallel to or coplanar with the axis of the movable sleeve 20. In the embodiment of the present disclosure, the front end of the first driving groove 20a refers to the end of the first driving groove 20a near the front end surface 201 of the movable sleeve 20. The rear end of the first driving groove 20a refers to the end of the first driving groove 20a near the rear end face 202 of the movable sleeve 20.

After the optical fiber connector 1000 and the optical fiber adapter 2000 are connected in place, the second driving protrusion 31 is located at the front end of the first driving groove 20a, i.e., at point N in fig. 7. F in FIG. 7 shows the force of the inner side wall of the first driving groove 20a against the second driving protrusion 31 when the movable sleeve 20 is manually screwed at point M of the second driving protrusion 31, F₁And F₂Are two component forces of F, F₁Perpendicular to the axis of the movable sleeve 20Line m, F₂Parallel to the axis m of the active cannula 20. F' represents the force of the inner side wall of the first driving groove 20a on the second driving protrusion 31 when the movable sleeve 20 is manually screwed at point N of the second driving protrusion 31. Based on the force, the second driving protrusion 31 is at point M and has a component force F₂The second driving protrusion 31 moves toward the rear end of the first driving groove 20a, the driving sleeve 30 moves axially, and the movable sleeve 20 can be screwed.

At the front end of the first driving groove 20a, the inner side wall 200a of the first driving groove 20a is parallel to or coplanar with the axis m of the movable sleeve 20, so at point N, the component force of the acting force F' of the inner side wall of the first driving groove 20a to the second driving protrusion 31 in the direction parallel to the axis m is 0, the driving sleeve 30 does not axially move relative to the movable sleeve 20, the second driving protrusion 31 cannot move from the front end of the first driving groove 20a to the rear end of the first driving groove 20a, and the movable sleeve 20 cannot be screwed. It can be seen that, by adopting such an arrangement for the inner side wall of the first driving groove 20a, after the optical fiber connector 1000 and the optical fiber adapter 2000 are connected in place, the movable sleeve 20 can be prevented from rotating under the external force such as vibration, and the locking structure 21 and the optical fiber adapter 2000 are disengaged.

Optionally, at the rear end of the first drive slot 20a, the inner side wall 200a of the first drive slot 20a is also parallel or coplanar with the axis of the active cannula 20. The second driving protrusion 31 is located at the rear end of the first driving groove 20a before the optical fiber connector 1000 is put into use, for example, during storage and transportation. With such a structure, it is similarly possible to prevent the movable sleeve 20 from rotating under the action of external force such as vibration, and thus avoid the need to adjust the positions of the movable sleeve 20 and the driving sleeve 30 when the optical fiber connector 1000 is put into use.

Optionally, the rear end of the first driving groove 20a is not closed. This can facilitate the insertion of the second driving projection 31 into the first driving groove 20a at the time of assembly.

Alternatively, the rear end of the first driving groove 20a is closed. This prevents the second driving protrusion 31 from being removed from the first driving groove 20 a.

In other examples, drive sleeve 30 has a drive slot and active sleeve 20 has a drive tab.

Fig. 8 is a schematic structural diagram of another optical fiber connector provided in the embodiment of the present disclosure. As shown in fig. 8, the inner side wall of the driving sleeve 30 has a second driving groove 30 a. The second driving groove 30a extends in the axial direction of the driving sleeve 30 and is gradually curved in the circumferential direction of the driving sleeve 30. The outer side wall of the activation sleeve 20 has a first drive lug 22, the first drive lug 22 being located between the locking formation 21 and the rear end face 202 of the activation sleeve 20. The first driving protrusion 22 is movably inserted in the second driving groove 30 a.

Fig. 9 is a front view of a drive sleeve provided by an embodiment of the present disclosure. As shown in fig. 9, at the rear end of the second driving groove 30a, the inner side wall 300a of the second driving groove 30a is parallel or coplanar with the axis n of the driving sleeve 30. In the disclosed embodiment, the rear end of the second driving groove 30a refers to the end of the second driving groove 30a close to the rear end face 302 of the driving sleeve 30, and the front end of the second driving groove 30a refers to the end of the second driving groove 30a close to the front end face 301 of the driving sleeve 30. Therefore, after the optical fiber connector 1000 and the optical fiber adapter 2000 are connected in place, the movable sleeve 20 is prevented from rotating under the action of external force such as vibration, and the locking structure 21 is prevented from being disengaged from the optical fiber adapter 2000.

Optionally, at the rear end of the second drive slot 30a, the inner side wall 300a of the second drive slot 30a is also parallel or coplanar with the axis of the drive sleeve 30. The movable sleeve 20 can be prevented from rotating under the action of external force such as vibration, and the position of the movable sleeve 20 and the position of the driving sleeve 30 also need to be adjusted when the optical fiber connector 1000 is put into use.

Alternatively, the front end of the second driving groove 30a is not closed. This facilitates the insertion of the first driving protrusion 22 into the second driving groove 30a at the time of assembly.

Alternatively, the front end of the second driving groove 30a is closed. This prevents the first driving protrusion 22 from being removed from the second driving groove 30 a.

The optical fiber connector shown in fig. 8 can achieve the same functions and the same principles as those of the connector shown in fig. 6, and the description thereof is omitted.

Referring again to fig. 6, the fiber optic connector 1000 also includes a guide tube 40. The guide tube 40 is sleeved outside the plug main body 10 and abuts against the rear end face 202 of the movable sleeve 20. A part of the driving sleeve 30 is sleeved outside the guide tube 40, and the guide tube 40 is used for limiting the circumferential direction of the driving sleeve 30, so that the driving sleeve 30 cannot rotate in the circumferential direction and can only move along the axial direction of the guide tube 40 under the action of external force.

The driving sleeve 30 and the guide tube 40 are matched through at least one group of circumferential limiting structures, and the circumferential limiting structures comprise guide sliding blocks and guide sliding grooves. When the driving sleeve 30 and the guide tube 40 are coupled by a set of convexo-concave structures, one of the driving sleeve 30 and the guide tube 40 has a guide slider, and the other of the driving sleeve 30 and the guide tube 40 has a guide slider movably inserted in the guide slide groove. When the driving sleeve 30 and the guide tube 40 are matched through two or more sets of circumferential limiting structures, the driving sleeve 30 has at least one of a guide slider and a guide sliding groove, the guide tube 40 also has at least one of a guide slider and a guide sliding groove, the guide slider of the driving sleeve 30 is movably inserted into the guide sliding groove of the guide tube 40, and the guide slider of the guide tube 40 is movably inserted into the guide sliding groove of the driving sleeve 30. The guide sliding block and the guide sliding groove are limited mutually, so that the guide sliding block can only move along the length direction of the guide sliding groove relative to the guide sliding groove, and the drive sleeve 30 is circumferentially limited.

In some examples, the drive sleeve 30 has a guide slide and the guide tube 40 has a guide runner.

As shown in fig. 6, the outer side wall of the guide tube 40 has a first guide runner 40a, and the first guide runner 40a extends in the axial direction of the guide tube 40. The inner side wall of the driving sleeve 30 has a second guide slider 32, and the second guide slider 32 is movably inserted in the first guide chute 40 a.

The first guide sliding groove 40a provides a limit for the second guide sliding block 32, and limits the moving direction of the second guide sliding block 32, so that the second guide sliding block 32 can only move along the axial direction of the guide tube 40, and the driving sleeve 30 can only move along the axial direction of the guide tube 40 under the action of external force and cannot rotate in the circumferential direction.

Fig. 10 is a schematic view of the structure of the guide tube in fig. 6. As shown in fig. 10, the first guide chute 40a has a first side wall 40b and a second side wall 40c extending along the length direction thereof, the first side wall 40b has a first limit protrusion 41 at the middle portion thereof, and the distance between the first limit protrusion 41 and the second side wall 40c is smaller than the width of the second guide slider 32 in the circumferential direction of the drive sleeve 30.

Before and after the optical fiber connector 1000 is connected to the optical fiber adapter 2000, the position of the second guiding sliding block 32 in the first guiding sliding groove 40a is different, before the optical fiber connector 1000 is connected to the optical fiber adapter 2000, the second guiding sliding block 32 is located at the rear end of the first guiding sliding groove 40a, that is, at the end of the first guiding sliding groove 40a far away from the movable sleeve 20, and after the optical fiber connector 1000 is connected to the optical fiber adapter 2000, the second guiding sliding block 32 is located at the front end of the first guiding sliding groove 40a, that is, at the end of the first guiding sliding groove 40a close to the movable sleeve 20. Through setting up first spacing arch 41, make the width in first direction spout 40a middle part narrower, promote drive sleeve 30, make second direction slider 32 from the rear end of first direction spout 40a remove the in-process of front end, obvious damping can appear when second direction slider 32 passes through first spacing arch 41, make things convenient for the operator to confirm the position of second direction slider 32.

In addition, the first position-limiting protrusion 41 can provide a certain position-limiting effect. The optical fiber connector 1000 may be influenced by some external forces, such as vibration, during storage, transportation, etc., the first limiting protrusion 41 may limit the second guiding sliding block 32 at the rear end of the first guiding sliding groove 40a, so as to prevent the second guiding sliding block 32 from moving to the front end of the first guiding sliding groove 40a due to vibration. Thus, the optical fiber connector 1000 can be put into use without adjusting the position of the driving sleeve 30.

After the optical fiber connector 1000 is connected to the optical fiber adapter 2000, the first limiting protrusion 41 can also limit the second guiding sliding block 32 at the front end of the first guiding sliding groove 40a, so that the second guiding sliding block 32 is prevented from moving to the rear end of the first guiding sliding groove 40a under the influence of factors such as vibration. In this way, the movable sleeve 20 is not easily rotated by vibration, etc., thereby preventing the movable sleeve 20 and the fiber adapter 2000 from being released.

As shown in fig. 10, an included angle between two side surfaces 41a of the first limiting protrusion 41 near two ends of the first guide chute 40a and the first side wall 40b is an obtuse angle.

In the process of pushing and pulling the driving sleeve 30, the second guiding sliding block 32 can smoothly slide to the top surface of the first limiting protrusion 41 through the two side surfaces 41a, so that the driving sleeve 30 is prevented from being difficult to move due to the fact that the first limiting protrusion 41 obstructs the second guiding sliding block 32 too much.

Illustratively, the included angle between the two side surfaces 41a and the first side wall 40b is 120 ° to 160 °.

As shown in fig. 10, the wall of the guide tube 40 further has a first linear groove 40d, the first linear groove 40d is adjacent to the first side wall 40b of the first guide runner 40a, and the first linear groove 40d extends in the axial direction of the guide tube 40. The first bar-shaped groove 40d is used to provide a space for lateral deformation of the first side wall 40b when the second guide slider 32 passes the first stopper protrusion 41.

When the second guide sliding block 32 passes through the first limiting protrusion 41, the side wall of the first guide sliding groove 40a is extruded, so that the side wall of the first guide sliding groove 40a is deformed to a certain extent. In order to allow the second guide slider 32 to smoothly pass through the first stopper protrusion 41, the side wall of the first guide chute 40a needs to be deformed sufficiently. Through setting up first bar-shaped groove 40d, first bar-shaped groove 40d is close to the first lateral wall 40b of first direction spout 40a, and when second direction slider 32 passed through first spacing arch 41, first bar-shaped groove 40d just can provide enough big space, and the first lateral wall 40b that supplies first direction spout 40a takes place the lateral bending, makes second direction slider 32 can pass through first spacing arch 41 smoothly. After the second guide slider 32 passes through the first stopper protrusion 41, the first side wall 40b of the first guide chute 40a is restored to its original shape by the elasticity of its material.

Further, when the driving sleeve 30 moves axially relative to the guide tube 40, the resistance of the guide tube 40 to the driving sleeve 30 is not less than the resistance of the fiber optic adapter 2000 to the fiber optic connector 1000 when the fiber optic connector 1000 is inserted into the fiber optic adapter 2000. The resistance of the guide tube 40 to the driving sleeve 30 includes the friction resistance of the guide tube 40 to the driving sleeve 30 and the resistance generated by the mutual pressing of the first limiting protrusion 41 and the second guiding slider 32. Thereby preventing the driving sleeve 30 from moving axially relative to the guide tube 40 during the process of connecting the optical fiber connector 1000 and the optical fiber adapter 2000, when the optical fiber connector 1000 is not inserted into the optical fiber adapter 2000.

In other examples, the drive sleeve 30 has a guide runner and the guide tube 40 has a guide shoe.

Referring to fig. 8, the inner side wall of the driving sleeve 30 has a second guide slide groove 30b, and the second guide slide groove 30b extends in the axial direction of the driving sleeve 30. The outer side wall of the guide tube 40 has a first guide slider 43, and the first guide slider 43 is movably inserted in the second guide chute 30 b.

The first guiding sliding block 43 provides a limit for the second guiding sliding groove 30b, and limits the direction of relative movement between the second guiding sliding groove 30b and the first guiding sliding block 43, so that the driving sleeve 30 can only move along the axial direction of the driving sleeve 30 under the action of external force and cannot rotate in the circumferential direction.

As shown in fig. 8, the second guide chute 30b has a third side wall 30d and a fourth side wall 30e extending in the length direction thereof, the middle portion of the third side wall 30d has a second stopper protrusion 33, and the interval between the second stopper protrusion 33 and the fourth side wall 30e is smaller than the width of the first guide slider 43 in the circumferential direction of the guide tube 40.

The included angle formed by the two side surfaces 33a of the second limiting protrusion 33 close to the two ends of the second guiding sliding groove 30b and the third side wall 30e is also an obtuse angle, so that the first guiding sliding block 43 can conveniently pass through the second limiting protrusion 33, and the situation that the driving sleeve 30 is difficult to move due to the fact that the second limiting protrusion 33 obstructs the first guiding sliding block 43 too much is avoided.

The second limiting protrusion 33 has the same function as the first limiting protrusion 41, and specific reference is made to the description of the first limiting protrusion 41, which is not described herein again.

As shown in fig. 8, the wall of the driving sleeve 30 further has a second strip-shaped groove 30c, the second strip-shaped groove 30c is adjacent to the third side wall 30d of the second guide chute 30b, and the second strip-shaped groove 30c extends in the axial direction of the driving sleeve 30. The second strip groove 30c is used to provide a space for lateral deformation of the third side wall 30d when the first guide slider 43 passes the second limit projection 33.

The second bar-shaped groove 30c has the same function as the first bar-shaped groove 40d, and specific reference is made to the description of the first bar-shaped groove 40d, which will not be described herein again.

As shown in FIG. 2, the inner sidewall of the guide tube 40 also has a limit key 42. The outer side wall of the plug main body 10 has a key groove 10a, the key groove 10a extends in the axial direction of the plug main body 10, and the stopper key 42 is located in the key groove 10 a. When the guide tube 40 is fitted outside the plug main body 10, the limit key 42 is engaged with the key groove 10a to circumferentially limit the guide tube 40, so that the guide tube 40 cannot circumferentially rotate relative to the plug main body 10.

Alternatively, the limit key 42 is a flat key or a spline, and accordingly, the key groove 10a is a flat key groove or a spline groove.

As shown in fig. 2, the fiber optic connector 1000 further includes a snap ring 50. The snap ring 50 is sleeved outside the plug main body 10 and abuts against the end surface of the guide tube 40 far away from the movable sleeve 20. The snap ring 50 can axially limit the guide tube 40, and the guide tube 40 is prevented from loosening.

The outer side wall of the plug main body 10 is provided with an annular snap ring groove 10b, and the snap ring 50 is clamped in the snap ring groove 10b under the elastic action of the snap ring 50, so that the snap ring 50 cannot move in the axial direction of the plug main body 10, and the guide pipe 40 can be limited in the axial direction.

As shown in fig. 2, the optical fiber connector 1000 further includes a protection sleeve 60 and a shrink tube 70, wherein one end of the shrink tube 70 is sleeved at the rear end of the plug main body 10, and the protection sleeve 60 is sleeved at the rear end of the plug main body 10 and is sleeved outside the shrink tube 70. The shrinkage tube 70 serves to seal a gap between the plug body 10 and the optical fiber 5 inserted into the plug body 10. The protective sleeve 60 is used to provide protection to the optical fiber 5.

After the optical fiber 5 is inserted into the plug main body 10, the shrinkage tube 70 is fitted over the rear end of the plug main body 10, and then the shrinkage tube 70 is shrunk to seal the gap between the plug main body 10 and the optical fiber 5. The protective sleeve 60 is a flexible tube that can be bent and deformed when subjected to an external force and can be restored when the external force is removed. When the optical fiber 5 is bent by an external force, the protection sleeve 60 can increase the bending radius of the optical fiber 5 at the rear end of the plug main body 10, so as to prevent the optical fiber 5 from being damaged due to an excessively small bending radius.

Illustratively, the protective sleeve 60 is a rubber tube and the shrink tube 70 is a heat shrink tube.

Fig. 11 is a schematic structural diagram of an optical fiber connection system according to an embodiment of the present disclosure. As shown in fig. 11, the fiber optic connection system includes a fiber optic adapter 2000 and a fiber optic connector 1000. The optical fiber connector 1000 is any one of the optical fiber connectors 1000 shown in fig. 2 to 10. Fig. 12 is a schematic structural diagram of a fiber optic adapter according to an embodiment of the present disclosure. As shown in fig. 12, the fiber optic adapter 2000 has a receptacle 2000a for mating with the fiber optic connector 1000.

After the optical fiber connector 1000 is inserted into the insertion hole 2000a of the optical fiber adapter 2000, the driving sleeve 30 is axially moved, and the driving sleeve 30 drives the movable sleeve 20 to circumferentially rotate, so that the locking structure 21 is matched with the optical fiber adapter 2000 to axially lock the movable sleeve 20 and the optical fiber adapter 2000, and the optical fiber connector 1000 is connected with the optical fiber adapter 2000. When the connection between the optical fiber connector 1000 and the optical fiber adapter 2000 needs to be disconnected, the driving sleeve 30 can be axially moved to drive the movable sleeve 20 to circumferentially rotate, so that the locking structure 21 is disengaged from the optical fiber adapter 2000, and the optical fiber connector 1000 is disconnected from the optical fiber adapter 2000. In the process of connecting and disconnecting the optical fiber connector 1000 and the optical fiber adapter 2000, an operator does not need to screw the movable sleeve 20 by hands, a large operation space is not needed, and the operation is simple and convenient.

As shown in fig. 12, the inner wall of the insertion hole 2000a has a catching groove 2001 and a guide groove 2002. Wherein the card slot 2001 extends along the circumference of the insertion hole 2000a, and the card slot 2001 is used for accommodating the locking structure 21 of the optical fiber connector 1000. The guide groove 2002 communicates with one end of the card slot 2001, and the guide groove 2002 extends from the card slot 2001 to the end of the insertion hole 2000 a.

During the process of inserting the optical fiber connector 1000 into the insertion hole 2000a, the locking structure 21 slides in the guiding groove 2002, under the guiding of the guiding groove 2002, the locking structure 21 slides to the end of the card slot 2001, and when the driving sleeve 30 is subsequently pushed, the locking structure 21 can form a fit with the card slot 2001 under the rotation of the movable sleeve 20, so as to axially lock the movable sleeve 20 and the optical fiber adapter 2000. During the process of inserting the separated optical fiber connector 1000 into the insertion hole 2000a, after the driving sleeve 30 is pulled to rotate the movable sleeve 20, the locking structure 21 reaches a position where the card slot 2001 communicates with the guide groove 2002. Fig. 13 is a schematic diagram illustrating a locking structure and a card slot provided in an embodiment of the disclosure. As shown in fig. 13, after the locking structure 21 reaches the position where the card slot 2001 communicates with the guide groove 2002, the movable sleeve 20 is rotated by the driving sleeve 30, so that the locking structure 21 is rotated to the end of the card slot 2001 away from the guide groove 2002, and the optical fiber connector 1000 and the optical fiber adapter 2000 are locked with each other. When the optical fiber connector 1000 and the optical fiber adapter 2000 are separated, the movable sleeve 20 is rotated reversely by the driving sleeve 30, so that the locking structure 21 is rotated again to the end where the card slot 2001 communicates with the guide groove 2002, and then the optical fiber connector 1000 is pulled out of the receptacle 2000a, and the locking structure 21 slides along the guide groove 2002 and finally slides out of the guide groove 2002.

As shown in fig. 12, the width of the guide groove 2002 gradually increases from one end of the guide groove 2002 communicating with the card slot 2001 to the other end of the guide groove 2002.

At the end of the receptacle 2000a, the guide groove 2002 has a larger width, and when the optical fiber connector 1000 is inserted into the optical fiber adapter 2000, the locking structure 21 is more easily slid into the guide groove 2002, facilitating the insertion of the optical fiber connector 1000 into the optical fiber adapter 2000. During sliding of the lock structure 21 toward the card slot 2001, the width of the guide groove 2002 gradually decreases, gradually guiding the lock structure 21 to the end of the card slot 2001.

Optionally, at least one of the guide slot 2002 and the card slot 2001 extends through a side wall of the fiber optic adapter 2000. In this way, when the optical fiber connector 1000 is inserted into the optical fiber adapter 2000, the position of the lock structure 21 can be observed from the outside of the optical fiber adapter 2000, and whether or not the lock structure 21 has moved into the card slot 2001 can be intuitively determined.

Illustratively, as shown in fig. 12, a card slot 2001 extends through a sidewall of the fiber optic adapter 2000.

Fig. 14 is a schematic structural diagram of a cartridge provided in an embodiment of the disclosure. As shown in fig. 14, the box body includes a housing 3000, an indoor optical fiber connector 4000, and a plurality of optical fiber connection systems, where the optical fiber connection systems are any of the optical fiber connection systems shown in fig. 11 to 13.

The side wall of the housing 3000 has a plurality of through holes 3000 a. The fiber optic adapter 2000 of the fiber optic connection system is inserted into the through hole 3000a, and a part of the fiber optic adapter 2000 is located outside the housing 3000 and the other part is located inside the housing 3000. The fiber optic connector 1000 is plugged into a portion of the fiber optic adapter 2000 that is outside of the housing 3000. The indoor fiber optic connector 4000 is plugged into a portion of the fiber optic adapter 2000 that is located within the housing 3000.

The optical fiber adapters 2000 can be more densely arranged on the housing 3000 because the connection and disconnection processes of the optical fiber connector 1000 and the optical fiber adapters 2000 do not require an operator to screw the movable sleeve 20 by hand, reducing the requirement for an operation space.

The above description is only one embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An optical fiber connector, characterized in that the optical fiber connector (1000) comprises a plug main body (10), a movable sleeve (20), a driving sleeve (30) and a guide tube (40);

the movable sleeve (20) is sleeved outside the plug main body (10), axially locked relative to the plug main body (10) and capable of circumferentially rotating relative to the plug main body (10), and a locking structure (21) used for being matched with an optical fiber adapter (2000) is arranged on the outer side wall of the movable sleeve (20);

the guide pipe (40) is sleeved outside the plug main body (10) and abuts against the rear end face (202) of the movable sleeve (20);

the driving sleeve (30) is sleeved outside the movable sleeve (20) and can axially move relative to the movable sleeve (20) so as to drive the movable sleeve (20) to circumferentially rotate;

a part of the driving sleeve (30) is sleeved outside the guide pipe (40), and the outer side wall of the guide pipe (40) is provided with at least one of a first guide sliding groove (40a) and a first guide sliding block (43);

if the outer side wall of the guide tube (40) is provided with the first guide sliding groove (40a), the first guide sliding groove (40a) extends along the axial direction of the guide tube (40), the inner side wall of the driving sleeve (30) is provided with a second guide slide block (32), and the second guide slide block (32) is movably inserted in the first guide sliding groove (40 a);

if the outer side wall of the guide tube (40) is provided with the first guide sliding block (43), the inner side wall of the driving sleeve (30) is provided with a second guide sliding groove (30b), the second guide sliding groove (30b) extends along the axial direction of the driving sleeve (30), and the first guide sliding block (43) is movably inserted in the second guide sliding groove (30 b).

2. The optical fiber connector according to claim 1, wherein an outer side wall of the movable sleeve (20) has at least one of a first driving groove (20a) and a first driving protrusion (22);

if the outer side wall of the movable sleeve (20) is provided with the first driving groove (20a), the first driving groove (20a) is positioned between the locking structure (21) and the rear end surface (202) of the movable sleeve (20), the first driving groove (20a) extends in the axial direction of the movable sleeve (20) and is gradually bent along the circumferential direction of the movable sleeve (20), the inner side wall of the driving sleeve (30) is provided with a second driving protrusion (31), and the second driving protrusion (31) is movably inserted in the first driving groove (20 a);

if the outer side wall of the movable sleeve (20) is provided with the first driving protrusion (22), the first driving protrusion (22) is positioned between the locking structure (21) and the rear end surface (202) of the movable sleeve (20), the inner side wall of the driving sleeve (30) is provided with a second driving groove (30a), the second driving groove (30a) extends in the axial direction of the driving sleeve (30) and is gradually bent along the circumferential direction of the driving sleeve (30), and the first driving protrusion (22) is movably inserted in the second driving groove (30 a).

3. The fiber optic connector of claim 2,

if the outer side wall of the movable sleeve (20) is provided with the first driving groove (20a), at least at the end part of the first driving groove (20a) close to the front end surface (201) of the movable sleeve (20), the inner side wall (200a) of the first driving groove (20a) is parallel or coplanar with the axis of the movable sleeve (20);

if the outer side wall of the movable sleeve (20) is provided with the first driving protrusion (22), at least at the end part of the second driving groove (30a) close to the rear end surface (302) of the driving sleeve (30), the inner side wall (300a) of the second driving groove (30a) is parallel or coplanar with the axis of the driving sleeve (30).

4. The optical fiber connector according to any one of claims 1 to 3,

if the outer side wall of the guide tube (40) is provided with the first guide chute (40a), the first guide chute (40a) is provided with a first side wall (40b) and a second side wall (40c) which extend along the length direction of the first guide chute, the middle part of the first side wall (40b) is provided with a first limiting bulge (41), and the distance between the first limiting bulge (41) and the second side wall (40c) is smaller than the width of the second guide slide block (32) in the circumferential direction of the drive sleeve (30);

if the first guide sliding block (43) is arranged on the outer side wall of the guide pipe (40), the second guide sliding groove (30b) is provided with a third side wall (30d) and a fourth side wall (30e) which extend along the length direction of the second guide sliding groove, a second limiting protrusion (33) is arranged in the middle of the third side wall (30d), and the distance between the second limiting protrusion (33) and the fourth side wall (30e) is smaller than the width of the first guide sliding block (43) in the circumferential direction of the guide pipe (40).

5. The fiber optic connector of claim 4,

if the outer side wall of the guide tube (40) is provided with the first guide sliding groove (40a), the tube wall of the guide tube (40) is further provided with a first strip-shaped groove (40d), the first strip-shaped groove (40d) is close to the first side wall (40b) and extends along the axial direction of the guide tube (40), and the first strip-shaped groove (40d) is used for providing a space for lateral deformation for the first side wall (40b) when the second guide sliding block (32) passes through the first limiting protrusion (41);

if the outer side wall of the guide pipe (40) is provided with the first guide sliding block (43), the pipe wall of the driving sleeve (30) is further provided with a second strip-shaped groove (30c), the second strip-shaped groove (30c) is close to the third side wall (30d) and extends along the axial direction of the driving sleeve (30), and the second strip-shaped groove (30c) is used for providing a space for lateral deformation for the third side wall (30d) when the first guide sliding block (43) passes through the second limiting protrusion (33).

6. The fiber optic connector of claim 4,

if the outer side wall of the guide pipe (40) is provided with the first guide sliding groove (40a), an included angle formed by two side surfaces (41a) of the first limiting protrusion (41) close to two ends of the first guide sliding groove (40a) and the first side wall (40b) is an obtuse angle;

if the outer side wall of the guide pipe (40) is provided with the first guide sliding block (43), an included angle formed by two side surfaces (33a) of the second limiting protrusion (33) close to two ends of the second guide sliding groove (30b) and the third side wall (30d) is an obtuse angle.

7. The optical fiber connector according to any one of claims 1 to 3, wherein the inner wall of the guide tube (40) has a limit key (42), the outer side wall of the plug main body (10) has a key groove (10a), the key groove (10a) extends along the axial direction of the plug main body (10), and the limit key (42) is located in the key groove (10 a).

8. The optical fiber connector (1000) according to any one of claims 1 to 3, further comprising a snap ring (50), wherein the snap ring (50) is sleeved outside the plug main body (10) and abuts against an end surface of the guide tube (40) away from the movable sleeve (20).

9. Optical fiber connector according to any one of claims 1 to 3, wherein the locking structure (21) comprises a cylindrical projection (211) or an outer flange (212) protruding in a radial direction of the movable sleeve (20), the outer flange (212) having a fan-ring shape.

10. Optical fiber connector according to any one of claims 1 to 3, wherein the outer side wall of the plug main body (10) is provided with a limit bump (11), and the front end surface (201) of the movable sleeve (20) abuts against the limit bump (11).

11. The optical fiber connector according to claim 10, wherein the front end surface (201) of the movable sleeve (20) has an angle-limiting groove (20b), the limiting projection (11) is located in the angle-limiting groove (20b), and a width of the limiting projection (11) in a circumferential direction of the plug main body (10) is smaller than a width of the angle-limiting groove (20b) in a circumferential direction of the movable sleeve (20).

12. A fiber optic connection system comprising a fiber optic adapter (2000) and a fiber optic connector (1000) according to any of claims 1-11, the fiber optic adapter (2000) having a receptacle (2000a) for mating with the fiber optic connector (1000).

13. The optical fiber connection system according to claim 12, wherein an inner wall of the insertion hole (2000a) has a card slot (2001) and a guide groove (2002);

the clamping groove (2001) extends along the circumferential direction of the jack (2000a) and is used for accommodating a locking structure (21) of the optical fiber connector (1000);

the guide groove (2002) communicates with one end of the card slot (2001), and the guide groove (2002) extends from the card slot (2001) to an end of the insertion hole (2000 a).

14. The optical fiber connection system according to claim 13, wherein the width of the guide groove (2002) gradually increases from one end of the guide groove (2002) communicating with the card slot (2001) to the other end of the guide groove (2002).

15. A cassette comprising a housing (3000), an indoor fibre optic connector (4000) and a plurality of fibre optic connection systems according to any one of claims 12 to 14;

the side wall of the housing (3000) has a plurality of through holes (3000 a);

the optical fiber adapter (2000) of the optical fiber connection system is plugged in the through hole (3000a), one part of the optical fiber adapter (2000) is positioned outside the shell (3000), and the other part of the optical fiber adapter is positioned inside the shell (3000);

the optical fiber connector (1000) of the optical fiber connection system is plugged in a part of the optical fiber adapter (2000) outside the housing (3000);

the indoor optical fiber connector (4000) is plugged into a part of the optical fiber adapter (2000) positioned in the shell (3000).